Rectangular heat preservation fan with efficient heat insulation and cooling functions

Abstract

The utility model discloses an efficient heat insulation and cooling rectangular heat preservation fan, and particularly relates to the technical field of heat preservation fans, the efficient heat insulation and cooling rectangular heat preservation fan comprises a fan shell, an aluminum alloy heat dissipation wind wheel, a first bakelite plate and high-density heat preservation cotton, the first bakelite plate is installed on the opposite face between an air outlet and the fan shell, and the high-density heat preservation cotton is embedded in the inner wall of the fan shell; bakelite plates are designed at an air inlet and an air outlet and form a double heat barrier with high-density heat preservation cotton, the bakelite plates block heat bridge key points at the air outlet and the air inlet, the shell is filled with the heat preservation cotton for uniform heat insulation, and the double heat barrier with key joint reinforced blocking and uniform heat insulation of the whole area is formed; the high-temperature-resistant motor is matched with the aluminum alloy heat dissipation wind wheel, heat is rapidly guided out through airflow formed by rotation of the wind wheel, meanwhile, the high-density heat preservation cotton on the inner wall of the shell forms a heat blocking layer, and the heat dissipation efficiency can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat -preserving fan, more specifically, the utility model relates to a high -efficient heat -insulating cooling rectangular heat -preserving fan. BACKGROUND

[0002] The fan is a kind of from the driven fluid machinery, and it is the habit of China to call the gas compression and gas conveying machinery fan, and the fan usually includes ventilator, air blower, wind power generator, and many fans will appear temperature loss during use, which affects the use effect, so the heat -preserving fan is provided;

[0003] Through the search, the existing patent publication No. CN218913206U discloses an energy-saving heat-preserving fan, which comprises a bottom plate, the bottom surface of the bottom plate is fixedly connected with an extension column, the output end of the extension column is fixedly connected with a fixed plate, the upper surface of the fixed plate is provided with two groups of symmetrical sliding grooves, and the bottom surface of the bottom plate is provided with four buffer mechanisms. By setting the bottom plate, the extension column, the fixed plate, the sliding groove and the buffer mechanism, the buffer mechanism can be used to buffer the vibration of the heat-preserving fan, avoid damage to the internal parts of the heat-preserving fan caused by vibration, reduce the service life of the parts, and the cooperation of the extension column and the fixed plate can limit the bottom plate, so that the vibration is directly transmitted to the buffer mechanism, and the vibration is slowed down by the buffer mechanism, so that the heat-preserving fan is protected, and the service life of the energy-saving heat-preserving fan is improved. The inventor found that the prior art has the following problems in the process of realizing the utility model:

[0004] The existing heat-preserving fan is affected by the heat of the fan as the main heat source, and the fan is easily affected by the heat when it runs, and the heat-preserving fan simultaneously bears the functions of heat insulation and heat dissipation, so that the heat dissipation efficiency is insufficient when heat preservation is carried out, the motor is overheated, and the equipment operation is affected. When there are metal components with high thermal conductivity directly connected in different areas in the equipment structure, a path for rapid heat conduction is formed, and heat is rapidly conducted to the surface of the shell through these components during use, forming a thermal bridge, which causes the surface temperature to rise. When the operator frequently inspects and operates close to the surface or accidentally touches the surface, the risk of scalding is likely to occur;

[0005] Therefore, the above problems are solved by providing a high-efficiency heat-insulating and cooling rectangular heat-preserving fan. Utility model content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-efficiency heat-insulating and cooling rectangular heat-preserving fan to solve the problems in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a high -efficient heat -proof cooling's rectangle heat preservation fan, including fan casing, aluminium alloy heat dissipation fan wheel, first bakelite board and high density heat preservation cotton, the front end face of fan casing is fixedly connected with the mounting plate, the front end face of mounting plate is installed with high temperature resistant motor, aluminium alloy heat dissipation fan wheel installs in the output of high temperature resistant motor, the left side of fan casing upper end is provided with air outlet, the rear end surface of fan casing is provided with air inlet,

[0008] The first bakelite board is installed on the opposite surface between the air outlet and the fan casing. The second bakelite board is installed on the opposite surface between the fan casing and the air inlet. The high-density heat preservation cotton is embedded in the inner wall of the fan casing.

[0009] Preferably, the thickness of the high-density heat preservation cotton is 100-150mm, and the density of the high-density heat preservation cotton is ≥120kg / m 3 The thickness of the first bakelite board and the second bakelite board is 10-15mm, and the thermal conductivity coefficient is ≤0.3W / m·K.

[0010] Preferably, the upper and lower ends of the air outlet are welded with first flanges, and the upper and lower ends of the air inlet are welded with second flanges. The outer surfaces of the air outlet and the air inlet are welded with reinforcing rib plates at equal intervals.

[0011] Preferably, the contact surfaces of one group of first flanges and the first bakelite board are embedded with sealing gaskets one, and the contact surfaces of one group of second flanges and the second bakelite board are embedded with sealing gaskets two.

[0012] Preferably, the shape of the first flange is square, and the shape of the second flange is circular. The shape and size of the first bakelite board and the first flange are equal, and the shape and size of the second bakelite board and the second flange are equal.

[0013] Preferably, the surfaces of the first bakelite board, the second bakelite board, the sealing gasket one, and the sealing gasket two are provided with a plurality of hole cavities for bolt installation. The plurality of hole cavities of the first bakelite board correspond to the sealing gasket one, and the plurality of hole cavities of the second bakelite board correspond to the sealing gasket two.

[0014] Preferably, the motor is used to drive the aluminium alloy heat dissipation fan wheel to rotate around its axis. The aluminium alloy heat dissipation fan wheel adopts a backward inclined blade design.

[0015] Preferably, the air outlet and the air inlet are connected with the inner cavity of the fan casing. The upper end of the fan casing is welded with connecting ears at the four corners.

[0016] The utility model discloses a technical effect and advantage:

[0017] 1、Compared with the prior art, the high-efficiency heat-insulating and cooling rectangular heat preservation fan avoids scalding caused by frequent inspection and close operation of the operator or accidental touching of the surface by designing bakelite plates at the air inlet and outlet and forming a double thermal barrier with high-density heat preservation cotton, the bakelite plates block the key points of the thermal bridge at the air outlet and inlet, and the high-density heat preservation cotton fills the inside of the shell to uniformly insulate heat, thereby forming a double thermal barrier of key node reinforced blocking and overall area uniform heat insulation.

[0018] 2、Compared with the prior art, the high-efficiency heat-insulating and cooling rectangular heat preservation fan can significantly improve the heat dissipation efficiency by using a high-temperature-resistant motor matched with an aluminum alloy heat dissipation fan wheel to quickly discharge heat through the airflow formed by the rotation of the fan wheel, using the high thermal conductivity of the aluminum alloy material to accelerate heat transfer, and stirring air with the fan wheel, while the high-density heat preservation cotton on the inner wall of the shell forms a thermal barrier layer to prevent external high-temperature environment heat from invading or internal heat from spreading to the shell. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model.

[0020] Figure 2 It is a whole side view structure schematic diagram of the utility model.

[0021] Figure 3 It is a whole bottom view structure schematic diagram of the utility model.

[0022] Figure 4 It is a first bakelite plate three-dimensional structure schematic diagram of the utility model.

[0023] Figure 5 It is a fan shell cross-sectional structure schematic diagram of the utility model.

[0024] The figure mark is: 1, fan shell; 2, mounting plate; 3, high-temperature-resistant motor; 4, aluminum alloy heat dissipation fan wheel; 5, air outlet; 51, first flange; 6, air inlet; 61, second flange; 7, first bakelite plate; 8, second bakelite plate; 9, connecting lug; 10, high-density heat preservation cotton; 11, reinforcing rib plate; 12, sealing washer one; 13, sealing washer two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] Embodiment 1

[0027] As shown in the accompanying drawings Figures 1 to 5 A high-efficiency heat-insulating and cooling rectangular heat-insulating fan, comprising a fan shell 1, an aluminum alloy heat-dissipating fan wheel 4, a first bakelite plate 7 and high-density heat-insulating cotton 10, the front end surface of the fan shell 1 is fixedly connected with a mounting plate 2, the fan shell 1 adopts a rectangular structure to facilitate installation in a narrow space and increase the heat-dissipating surface area, the front end surface of the mounting plate 2 is installed with a high-temperature-resistant motor 3, the mounting plate 2 is bolted to the front end surface of the fan shell 1 to form a stable high-temperature-resistant motor 3 mounting base surface, the aluminum alloy heat-dissipating fan wheel 4 is installed at the output end of the high-temperature-resistant motor 3, the aluminum alloy heat-dissipating fan wheel 4 is directly installed at the output end of the high-temperature-resistant motor 3 for direct driving, which can form high-speed airflow when rotating, the left side of the upper end of the fan shell 1 is provided with an air outlet 5, and the rear end surface of the fan shell 1 is provided with an air inlet 6, the air outlet 5 and the air inlet 6 are respectively used for air outlet and air inlet of the fan;

[0028] The first bakelite plate 7 is installed on the opposite surface between the air outlet 5 and the fan shell 1, and the second bakelite plate 8 is installed on the opposite surface between the fan shell 1 and the air inlet 6, the first bakelite plate 7 and the second bakelite plate 8 are embedded between the flange and the shell to reduce the heat conduction rate of the flange and the shell and block the heat conduction path, the high-density heat-insulating cotton 10 is embedded in the inner wall of the fan shell 1, the high-density heat-insulating cotton 10 is rock wool, which uniformly blocks the heat of the entire inner wall.

[0029] Example 2

[0030] Based on the basis of example 1, the scheme in example 1 is further refined in combination with the following specific working mode, as shown in Figures 1 to 5 The detailed description is as follows:

[0031] As a preferred embodiment, the thickness of the high-density heat-insulating cotton 10 is 100-150 mm, the thickness of 100-150 mm forms a thick-walled barrier heat-insulating layer, significantly prolongs the heat conduction path, reduces the heat conduction efficiency through the fan shell 1, and reduces heat penetration, the density of the high-density heat-insulating cotton 10 is ≥120 kg / m 3 , ≥120 kg / m 3The density of the high-density insulation cotton 10 makes the internal fiber structure of the high-density insulation cotton 10 more compact, the porosity is reduced, and the air flowability is weaker, thereby improving the overall thermal insulation performance. The thickness of the first bakelite plate 7 and the second bakelite plate 8 is 10-15 mm, which provides sufficient structural support strength to avoid damage or deformation of the bakelite plate due to the bolt fastening force during flange connection, thereby ensuring the integrity of the thermal resistance layer, and the thermal conductivity is ≤0.3 W / m·K. The low thermal conductivity of the bakelite plate can isolate the heat conduction of the pipeline, and the high-density insulation cotton 10 forms the first barrier through the double inhibition of heat conduction and convection heat transfer. The first bakelite plate 7 and the second bakelite plate 8 block the heat bridge conduction at the key interface to form the second barrier, thereby reducing the surface temperature to avoid the risk of scalding for the operator.

[0032] As a preferred embodiment, the first flange 51 is square in shape, the second flange 61 is circular in shape, the upper and lower ends of the air outlet 5 are welded with the first flange 51, the upper and lower ends of the air inlet 6 are welded with the second flange 61, the first flange 51 and the second flange 61 are fixedly connected with the air outlet 5 and the air inlet 6 by welding, the outer surfaces of the air outlet 5 and the air inlet 6 are welded with the reinforcing rib plates 11 at equal intervals, the air outlet 5 and the air inlet 6 improve the connection strength through the reinforcing rib plates 11, one set of the first flange 51 is embedded with the sealing gasket one 12 on the contact surface of the first bakelite plate 7, and one set of the second flange 61 is embedded with the sealing gasket two 13 on the contact surface of the second bakelite plate 8. The sealing gasket one 12 and the sealing gasket two 13 fill the small gap between the flange and the bakelite plate to prevent the internal airflow of the fan structure from leaking through the interface gap and ensure the stability of the air volume and pressure. The first bakelite plate 7 and the first flange 51 are equal in size and shape, the second bakelite plate 8 and the second flange 61 are equal in size and shape, and the two bakelite plates and the flanges are completely consistent in size and shape to ensure that the entire flange contact surface is covered after installation without exposed metal edges.

[0033] As a preferred embodiment, the surfaces of the first bakelite plate 7, the second bakelite plate 8, the sealing gasket one 12, and the sealing gasket two 13 are provided with a plurality of hole cavities for bolt installation. The plurality of hole cavities of the first bakelite plate 7 correspond to the sealing gasket one 12, and the plurality of hole cavities of the second bakelite plate 8 correspond to the sealing gasket two 13. The hole cavities of the first bakelite plate 7, the second bakelite plate 8, the sealing gasket one 12, and the sealing gasket two 13 provide positions for the first flange 51 and the second flange 61 to be connected by bolts, and the overall structure is fixedly connected by bolts.

[0034] As a preferred embodiment, the high-temperature-resistant motor 3 is used to drive the aluminum alloy heat-dissipation fan wheel 4 to rotate around its axis. The aluminum alloy has low density and small inertia when the fan wheel rotates, and the aluminum alloy has good heat conductivity. The aluminum alloy heat-dissipation fan wheel 4 adopts a rear-inclined 12-blade design, so that the direction of the air outlet is closer to the radial direction, and high air volume and low noise are achieved. The air outlet 5 and the air inlet 6 are in communication with the inner cavity of the fan shell 1. The communication design can ensure smooth air conduction. The connecting ears 9 are welded at the four corners of the upper end of the fan shell 1. The connecting ears 9 at the four corners of the fan shell 1 can be fixed to the mounting base by bolts.

[0035] The working process of the utility model is as follows: firstly, the high-temperature-resistant motor 3 is installed on the front end face of the mounting plate 2, the mounting plate 2 and the front end face of the fan shell 1 are bolted to form a stable base, the high-temperature-resistant motor 3 drives the aluminum alloy heat-dissipation fan wheel 4 to rotate around its axis, the aluminum alloy heat-dissipation fan wheel 4 is directly installed on the output end of the high-temperature-resistant motor 3 for direct driving, and high-speed airflow is formed during rotation. The outside air is sucked from the air inlet 6 at the rear end face of the fan shell 1, discharged from the air outlet 5 at the upper end left side through the inner cavity, and the air inlet and air outlet of the fan are realized. The first bakelite plate 7 is installed between the air outlet 5 and the fan shell 1, and the second bakelite plate 8 is installed between the fan shell 1 and the air inlet 6. The flange and the fan shell 1 are installed between the flange and the fan shell 1 to reduce the heat conduction rate of the flange and the fan shell 1, block the heat conduction path, and isolate the pipeline heat conduction. The high-density insulation cotton 10 is embedded in the inner wall of the fan shell 1, uniformly blocks the heat of the entire inner wall, and forms a thick-walled barrier heat insulation layer with a thickness of 100-150 mm, significantly prolongs the heat conduction path, and reduces the heat conduction efficiency. The density of the high-density insulation cotton 10 is greater than or equal to 120 kg / m 3 , so that the internal fiber structure is compact and the porosity is low, the overall heat insulation performance is improved, the thermal bridge conduction is blocked at the key interface with the bakelite plate to form a double barrier, and the surface temperature of the shell is reduced.

[0036] The first flange 51 welded on the upper and lower ends of the air outlet 5 and the second flange 61 welded on the upper and lower ends of the air inlet 6 are fixed by welding. The reinforcing rib plate 11 welded at equal intervals on the outer surface improves the connection strength. The first flange 51 and the first bakelite plate 7, and the second flange 61 and the second bakelite plate 8 are equal in shape and size. After installation, the entire flange contact surface is covered, and there is no exposed metal edge. The sealing gasket one 12 and the sealing gasket two 13 embedded in the contact surface fill the small gap, prevent internal airflow from leaking through the interface gap, ensure stable air volume and pressure, and the bolt hole cavities on the surfaces of the first bakelite plate 7, the second bakelite plate 8, the sealing gasket one 12 and the sealing gasket two 13 correspond to each other. The first flange 51 and the second flange 61 are fixed and connected to the overall structure by bolts. The fan shell 1 adopts a rectangular structure to facilitate installation in narrow spaces and increase the heat dissipation surface area. The connecting ears 9 welded at the four corners of the upper end can be fixed to the mounting base by bolts to ensure smooth air conduction and stable equipment installation. The above is the working principle of the high-efficiency heat-insulated cooling rectangular heat-insulated fan.

Claims

1. A rectangular heat-insulating fan with high efficiency and heat insulation cooling, comprising a fan housing (1), an aluminum alloy heat dissipation impeller (4), a first bakelite board (7), and high-density insulation cotton (10), characterized in that: The front end face of the fan housing (1) is fixedly connected to the mounting plate (2), the front end face of the mounting plate (2) is equipped with a high temperature resistant motor (3), the aluminum alloy heat dissipation fan wheel (4) is installed at the output end of the high temperature resistant motor (3), the upper left side of the fan housing (1) is provided with an air outlet (5), and the rear end face of the fan housing (1) is provided with an air inlet (6). The first bakelite board (7) is installed on the opposite side between the air outlet (5) and the fan housing (1), and the second bakelite board (8) is installed on the opposite side between the fan housing (1) and the air inlet (6). The high-density insulation cotton (10) is embedded in the inner wall of the fan housing (1).

2. The high-efficiency heat-insulating and cooling rectangular heat-insulating fan according to claim 1, characterized in that: The thickness of the high-density thermal insulation cotton (10) is 100-150mm, and the density of the high-density thermal insulation cotton (10) is ≥120kg / m³. 3 The thickness of the first bakelite board (7) and the second bakelite board (8) is 10-15 mm, and the thermal conductivity is ≤0.3 W / m·K.

3. The high-efficiency heat-insulating and cooling rectangular heat-insulating fan according to claim 1, characterized in that: The upper and lower ends of the air outlet (5) are each welded with a first flange (51), the upper and lower ends of the air inlet (6) are each welded with a second flange (61), and the outer surfaces of the air outlet (5) and the air inlet (6) are each welded with reinforcing ribs (11) at equal intervals.

4. The high-efficiency heat-insulating and cooling rectangular heat-insulating fan according to claim 3, characterized in that: One set of the first flange (51) has a sealing gasket (12) embedded in the contact surface with the first bakelite board (7), and one set of the second flange (61) has a sealing gasket (13) embedded in the contact surface with the second bakelite board (8).

5. A high-efficiency heat-insulating and cooling rectangular insulated fan according to claim 4, characterized in that: The first flange (51) is square in shape, the second flange (61) is round in shape, the first bakelite board (7) is the same size and shape as the first flange (51), and the second bakelite board (8) is the same size and shape as the second flange (61).

6. A high-efficiency heat-insulating and cooling rectangular heat-insulating fan according to claim 4, characterized in that: The surfaces of the first bakelite board (7), the second bakelite board (8), the first sealing gasket (12), and the second sealing gasket (13) are all provided with several holes for bolt installation. The first bakelite board (7) corresponds to several holes of the first sealing gasket (12), and the second bakelite board (8) corresponds to several holes of the second sealing gasket (13).

7. A high-efficiency heat-insulating and cooling rectangular insulated fan according to claim 1, characterized in that: The high-temperature resistant motor (3) is used to drive the aluminum alloy heat dissipation fan (4) to rotate around its axis. The aluminum alloy heat dissipation fan (4) adopts a backward-inclined 12-blade design.

8. A high-efficiency heat-insulating and cooling rectangular insulated fan according to claim 1, characterized in that: The air outlet (5) and the air inlet (6) are both connected to the inner cavity of the fan housing (1), and connecting ears (9) are welded to the four corners of the upper end of the fan housing (1).

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