Micro-channel heat exchanger

Abstract

The utility model discloses a micro-channel heat exchanger, and relates to the technical field of micro-channel heat exchangers. Comprising symmetrically-arranged heat collecting pipes, a heat dissipation assembly is arranged between the two heat collecting pipes, the heat dissipation assembly is detachably connected with a cleaning assembly, the cleaning assembly comprises symmetrically-arranged movable plates, the two ends of each movable plate are slidably connected with baffles respectively, the two heat collecting pipes are arranged between the two baffles, and driving assemblies are arranged in the baffles. The cleaning assembly is driven by the driving assembly to move along the heat dissipation assembly, dust removal can be conducted on the heat dissipation assembly, the situation that the heat dissipation effect of the heat dissipation assembly is poor due to dust is avoided, and the heat exchange efficiency of the heat dissipation assembly is effectively improved.

Description

Technical Field

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

[0002] A microchannel heat exchanger is a heat exchanger with an equivalent channel diameter of 10-1000um. There are ten tiny flow channels in the flat tubes of this heat exchanger. The two ends of the flat tubes are connected to the circular headers. Partitions are set in the headers to divide the heat exchanger flow channels into several processes. Since the microchannel heat exchanger is exposed to the outside world when in use, it is easily affected by dust and affects heat dissipation.

[0003] Chinese patent publication number CN218781464U discloses a microchannel heat exchanger, which reduces dust accumulation by using S-shaped flat tubes. However, dust still accumulates on the fins. When there is a lot of dust, it is easy to cause poor heat dissipation effect of the fins, thereby affecting the heat exchange effect. Therefore, there is an urgent need for a microchannel heat exchanger that can effectively clean the dust accumulation and effectively avoid the poor heat dissipation effect of the fins caused by dust, thereby affecting the heat exchange effect. Utility Model Content

[0004] The purpose of the utility model is to provide a microchannel heat exchanger to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a microchannel heat exchanger, including symmetrically arranged heat collecting tubes, a heat dissipation assembly is arranged between two of the heat collecting tubes, the heat dissipation assembly is detachably connected to a cleaning assembly, the cleaning assembly includes symmetrically arranged movable plates, both ends of the movable plates are respectively slidably connected to baffles, the two heat collecting tubes are arranged between the two baffles, and a driving assembly is arranged inside the baffle.

[0006] Preferably, the heat dissipation assembly includes a plurality of flat tubes connected to the heat collecting tube, and the plurality of flat tubes are arranged at equal intervals.

[0007] Preferably, a plurality of fins are fixedly connected to both sides of the flat tube.

[0008] Preferably, the movable plate is L-shaped, and a plurality of air outlets are provided on the side of the movable plate facing the fins. The air outlets are connected to a cavity, the cavity is provided in the movable plate, one end of the cavity is connected to an air outlet end of an air pump, and the air pump is embedded in the movable plate.

[0009] Preferably, a brush is provided below the air outlet, the brush is fixedly connected to the movable plate, and one end of the brush away from the movable plate is detachably connected to the fin.

[0010] Preferably, the air inlet end of the air pump extends out of the movable plate and is flush with the outer wall of the movable plate.

[0011] Preferably, a slide groove is provided on the baffle, and the slide groove runs through two sides of the baffle.

[0012] Preferably, the driving assembly comprises a lead screw rotatably connected to the slide slot, the lead screw is threadedly connected to a slider, and one end of the slider extending out of the slide slot is fixedly connected to the movable plate.

[0013] Preferably, the lead screw drive is connected to a motor, and the motor is embedded in the baffle.

[0014] The utility model discloses the following technical effects:

[0015] The utility model can remove dust from the heat dissipation component by driving the cleaning component to move along the heat dissipation component through the driving component, thus avoiding poor heat dissipation effect of the heat dissipation component due to dust and effectively improving the heat exchange efficiency of the heat dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 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.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the baffle of the utility model;

[0019] Figure 3 This is a front view structural diagram of the movable plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the movable plate of the utility model;

[0021] Among them, 1. heat collecting tube; 2. fin; 3. flat tube; 4. baffle; 5. motor; 6. slide groove; 7. slider; 8. lead screw; 9. movable plate; 10. cavity; 11. air outlet; 12. air pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1-Figure 4 The utility model discloses a microchannel heat exchanger, including symmetrically arranged heat collecting tubes 1, a heat dissipation component is arranged between the two heat collecting tubes 1, the heat dissipation component is detachably connected with a cleaning component, the cleaning component includes a symmetrically arranged movable plate 9, both ends of the movable plate 9 are respectively slidably connected with baffles 4, the two heat collecting tubes 1 are arranged between the two baffles 4, and a driving component is arranged in the baffle 4.

[0025] The utility model can remove dust from the heat dissipation component by driving the cleaning component to move along the heat dissipation component through the driving component, thus avoiding poor heat dissipation effect of the heat dissipation component due to dust and effectively improving the heat exchange efficiency of the heat dissipation component.

[0026] According to a further optimized solution, the heat dissipation assembly includes a plurality of flat tubes 3 connected to the heat collecting tube 1, and the plurality of flat tubes 3 are arranged at equal intervals. The flat tubes 3 effectively increase the heat exchange area.

[0027] In a further optimized solution, a plurality of fins 2 are fixedly connected to both sides of the flat tube 3. The fins 2 further increase the heat exchange area and the heat exchange efficiency.

[0028] In a further optimized solution, the movable plate 9 is L-shaped, and a plurality of air outlets 11 are provided on one side of the movable plate 9 facing the fin 2, and the air outlets 11 are connected to a cavity 10, and the cavity 10 is provided in the movable plate 9, and one end of the cavity 10 is connected to an air outlet end of an air pump 12, and the air pump 12 is embedded in the movable plate 9. The air pump 12 delivers air into the cavity 10, and the air can clean the dust on the fin 2 through the air outlet 11, thereby effectively reducing the dust on the fin 2.

[0029] In a further optimized solution, a brush is provided below the air outlet 11, the brush is fixedly connected to the movable plate 9, and one end of the brush away from the movable plate 9 is detachably connected to the fin 2. The dust on the fin 2 and the flat tube 3 can be cleaned by the brush, so that the dust can be removed by the gas blown out of the air outlet 11.

[0030] In a further optimized solution, the air inlet end of the air pump 12 extends out of the movable plate 9 and is flush with the outer wall of the movable plate 9. The air pump 12 will not be damaged by external collisions, and the service life of the air pump 12 is effectively improved.

[0031] According to a further optimized solution, a slide groove 6 is provided on the baffle plate 4 , and the slide groove 6 runs through two sides of the baffle plate 4 .

[0032] According to a further optimized solution, the driving assembly includes a lead screw 8 rotatably connected to the slide slot 6 , the lead screw 8 is threadedly connected to a slider 7 , and one end of the slider 7 extending out of the slide slot 6 is fixedly connected to a movable plate 9 .

[0033] According to a further optimized solution, the lead screw 8 is transmission-connected to the motor 5 , and the motor 5 is embedded in the baffle 4 .

[0034] The motor 5 drives the lead screw 8 to move, the lead screw 8 drives the slider 7 to move along the slide groove 6, and the slider 7 drives the movable plate 9 to move.

[0035] In order to enable the movable plate 9 to move stably, the end of the movable plate 9 away from the slider 7 is fixedly connected to a limit block, and the limit block is slidably connected to the slide groove 6. The movable plate 9 can move stably along the two slide grooves 6 through the slider 7 and the limit block.

[0036] Working process: when it is necessary to clean the dust, first turn on any motor 5, the motor 5 drives the motor 5 to drive the lead screw 8 to move, the lead screw 8 drives the slider 7 to move along the slide groove 6, and the slider 7 drives the movable plate 9 to move. At this time, the brush on the moving movable plate 9 will clean the fins 2 and the flat tubes 3, and then turn on the air pump 12 on the movable plate 9 in the moving state, the air pump 12 sends air into the cavity 10, and the air can clean the dust on the fin 2 through the air outlet 11. After cleaning, turn off the motor 5; then move the movable plate 9 on the other side to remove dust on the other side. The utility model can effectively avoid the situation that when only one side is purged, there will be some places that cannot be purged. By taking turns to purge on both sides, the efficiency and effect of dust purging can be effectively improved, and the heat exchange efficiency is effectively improved.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A microchannel heat exchanger, characterized in that: The invention comprises symmetrically arranged heat collecting tubes (1), a heat dissipation assembly is arranged between the two heat collecting tubes (1), the heat dissipation assembly is detachably connected to a cleaning assembly, the cleaning assembly comprises symmetrically arranged movable plates (9), both ends of the movable plates (9) are respectively slidably connected to baffles (4), the two heat collecting tubes (1) are arranged between the two baffles (4), and a driving assembly is arranged inside the baffle (4).

2. The microchannel heat exchanger according to claim 1, characterized in that: The heat dissipation assembly comprises a plurality of flat tubes (3) connected to the heat collecting tube (1), and the plurality of flat tubes (3) are arranged at equal intervals.

3. The microchannel heat exchanger according to claim 2, characterized in that: A plurality of fins (2) are fixedly connected to both sides of the flat tube (3).

4. The microchannel heat exchanger according to claim 3, characterized in that: The movable plate (9) is L-shaped. A plurality of air outlets (11) are provided on one side of the movable plate (9) facing the fin (2). The air outlets (11) are connected to a cavity (10). The cavity (10) is provided in the movable plate (9). One end of the cavity (10) is connected to an air outlet end of an air pump (12). The air pump (12) is embedded in the movable plate (9).

5. The microchannel heat exchanger according to claim 4, characterized in that: A brush is provided below the air outlet (11), the brush is fixedly connected to the movable plate (9), and one end of the brush away from the movable plate (9) is detachably connected to the fin (2).

6. The microchannel heat exchanger according to claim 4, characterized in that: The air inlet end of the air pump (12) extends out of the movable plate (9) and is flush with the outer wall of the movable plate (9).

7. The microchannel heat exchanger according to claim 6, characterized in that: The baffle plate (4) is provided with a slide groove (6), and the slide groove (6) runs through two sides of the baffle plate (4).

8. The microchannel heat exchanger according to claim 7, characterized in that: The driving assembly comprises a lead screw (8) rotatably connected to the slide groove (6), the lead screw (8) is threadedly connected to a slider (7), and one end of the slider (7) extending out of the slide groove (6) is fixedly connected to the movable plate (9).

9. The microchannel heat exchanger according to claim 8, characterized in that: The lead screw (8) is transmission-connected to a motor (5), and the motor (5) is embedded in the baffle (4).

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