Composite heat-dissipation type blower fan

Abstract

The application relates to the technical field of air blowers, in particular to a composite heat dissipation type air blower which comprises a machine shell, a driving motor and a controller, the driving motor is connected with an impeller in the machine shell, a composite heat dissipation mechanism is arranged at the tail of the driving motor, the composite heat dissipation mechanism comprises a connecting assembly arranged at the tail of the driving motor, at least two compressed gas source tanks are arranged on the connecting assembly, the compressed gas source tanks are connected with the driving motor through a gas supply assembly, and a phase change cooling assembly is arranged on the gas supply assembly. The composite heat dissipation type air blower has high heat dissipation efficiency, simple arrangement, is convenient to maintain, and can assist air blowing after heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of blower technology, and in particular to a composite heat dissipation type blower. Background Technology

[0002] Blowers are widely used in sewage treatment, pneumatic conveying, chemical aeration, and industrial ventilation. During long-term continuous high-load operation, the copper losses in the motor windings, the iron losses in the core, and the frictional losses in the bearings will continuously generate a large amount of heat. If the heat cannot be dissipated in time, the temperature rise of the entire machine can easily exceed the standard. Overheating of the motor can cause aging and breakdown of the winding insulation layer, drying and failure of the bearing grease, demagnetization of the permanent magnet rotor, and impeller vibration imbalance, which will significantly shorten the service life of the entire machine. In severe cases, it can lead to motor stalling, short circuits, or even fire hazards.

[0003] Currently, most blower cooling solutions on the market adopt a single cooling method: one is to have a coaxial air-cooled structure at the tail of the motor, which is simple in structure and low in cost, but the heat dissipation margin is insufficient in closed machine rooms, high-temperature environments in summer, and high-power full-load conditions. The cooling effect is further reduced after the motor casing is covered with dust and blocks the heat dissipation fins; the other is to use an independent water cooling mode, which has high heat exchange efficiency, but requires auxiliary components such as water pumps, pipelines, and water tanks. The overall structure is complex, occupies a large area, and there is a risk of water leakage and corrosion, resulting in high maintenance costs in the later stage. Summary of the Invention

[0004] The purpose of this invention is to provide a composite heat dissipation blower to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides a composite heat dissipation blower, including a housing, a drive motor, and a controller. The drive motor is connected to an impeller inside the housing. A composite heat dissipation mechanism is provided at the tail end of the drive motor. The composite heat dissipation mechanism includes a connecting component installed at the tail end of the drive motor. At least two compressed air source tanks are provided on the connecting component. The compressed air source tanks are connected to the drive motor through an air supply component. A phase change cooling component is provided on the air supply component.

[0006] Preferably, the connecting assembly includes a fixed plate that is fixed to the tail of the drive motor by bolts. The fixed plate is rotatably provided with a mounting ring. A plurality of first positioning members are provided on one side of the mounting ring. The first positioning members are positioned opposite to the first positioning groove of the fixed plate. An mounting member is provided on the other side of the mounting ring. The mounting member is used to fix the compressed air source tank.

[0007] Preferably, the mounting component includes a positioning sleeve, one end of which is mounted on a mounting ring. The circumferential side of the positioning sleeve has several circumferentially distributed through grooves. An operating ring is rotatably connected to one circumferential side of the positioning sleeve. The circumferential side of the operating ring is provided with anti-slip textures, and the upper end face of the operating ring is provided with a spiral pattern. A top block is provided in the through groove, and an engagement groove is provided at the bottom of the top block. The engagement groove engages with the spiral pattern. A second positioning element is provided on the operating ring. The second positioning element is positioned opposite to the second positioning groove on the outer side of the positioning sleeve. A compressed air source tank is inserted into the positioning sleeve, and several top blocks are in contact with the circumferential side of the compressed air source tank.

[0008] Preferably, the output end of the compressed air source tank is connected to a flexible pipe, a first solenoid valve is installed on the flexible pipe, the flexible pipe is connected to the inlet branch pipe on the annular air supply main pipe of the air supply component, the annular air supply main pipe is installed at the head end of the drive motor, a number of outlet pipes of the annular air supply main pipe are provided with first pressure regulating valves, the number of first pressure regulating valves are all connected to the heat dissipation pipe, the heat dissipation pipe is connected to the air inlet end of the drive motor, the air outlet end of the drive motor is provided with a connecting pipe, the connecting pipe is connected to the housing and the exhaust pipe through a three-way solenoid valve; The first solenoid valve, drive motor, first pressure regulating valve, and three-way solenoid valve are all electrically connected to the controller.

[0009] Preferably, the tangent of the three-way solenoid valve at the air inlet end of the housing coincides with the center line of the air outlet end of the housing. Both the housing and the bottom of the fixed plate are provided with a support base. The support base includes an arc-shaped connecting part and a bending buffer part, with the bending buffer part located at both ends of the arc-shaped connecting part.

[0010] Preferably, the phase change cooling component includes a cooling pipe disposed in the annular gas supply main pipe, a phase change medium disposed in the cooling pipe, a second pressure regulating valve disposed at one end of the cooling pipe passing through the annular gas supply main pipe, and a second solenoid valve at the output end of the liquid cooling tank being disposed at the other end of the cooling pipe passing through the annular gas supply main pipe. A water receiving pipe is disposed at the bottom of the annular gas supply main pipe, and the annular gas supply main pipe, the gas outlet pipe, and the heat dissipation pipe are all wrapped with heat insulation cotton on the outside. Both the second pressure regulating valve and the second solenoid valve are electrically connected to the controller.

[0011] Preferably, a monitoring mechanism is also provided, which includes a temperature monitoring component and a pressure monitoring component, both of which are electrically connected to the controller.

[0012] Preferably, the temperature monitoring component includes a first temperature sensor disposed in the drive motor, a second temperature sensor disposed in the housing, and a third temperature sensor disposed in the annular air supply main pipe; at least two of the first, second, and third temperature sensors are provided and each is electrically connected to the controller, for collecting the temperature inside the drive motor, inside the housing, and inside the annular air supply main pipe.

[0013] Preferably, the air pressure monitoring component includes an air pressure sensor installed on the air outlet pipe for collecting the air outlet pressure of the annular air supply main pipe.

[0014] Preferably, the composite heat dissipation mechanism is controlled based on temperature data, and the maximum temperature values ​​collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are the first temperature value, the second temperature value, and the third temperature value, respectively. The opening degree of the first and second pressure regulating valves is determined based on the first and third temperature values. The corresponding compressed air source tank is opened and closed based on the outlet pressure value collected by the air pressure sensor.

[0015] Therefore, the present invention employs the above-mentioned composite heat dissipation blower, which has the following beneficial effects: (1) The composite heat dissipation mechanism adopts compressed air source air cooling and phase change liquid cooling coupled heat dissipation. High pressure low temperature gas is introduced into the drive motor. After heat exchange by the motor, the low temperature gas can be introduced into the blower casing as needed. While completing the heat dissipation of the motor, the temperature of the output blower medium is reduced to meet the special process requirements such as low temperature aeration and low temperature material conveying.

[0016] (2) The connecting components enable the quick installation and disassembly of the compressed air source tanks. Multiple compressed air source tanks can automatically switch to supply air. When the air pressure of a single tank is insufficient, the controller will automatically switch to another tank. The air supply pressure is stable throughout the process, and the heat dissipation airflow is uninterrupted.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is an exploded view of a composite heat dissipation blower according to the present invention; Figure 2 This is a schematic diagram of the connection component structure of the present invention; Figure 3 This is a schematic diagram of the fixed disk structure of the present invention; Figure 4 This is a schematic diagram of the mounting component structure of the present invention; Figure 5 This is a schematic diagram of the positioning sleeve structure of the present invention; Figure 6 This is a schematic diagram of the gas supply component structure of the present invention; Figure 7 This is a cross-sectional view of the gas supply assembly of the present invention; Figure 8 This is a schematic diagram showing the gas flow direction inside the drive motor of the present invention.

[0019] Figure Labels 1. Housing; 2. Drive motor; 3. Impeller; 4. Connecting assembly; 41. Fixing plate; 42. Mounting ring; 43. First positioning component; 44. First positioning groove; 45. Mounting component; 451. Positioning sleeve; 452. Through groove; 453. Operating ring; 454. Swirl pattern; 455. Top block; 456. Second positioning component; 457. Second positioning groove; 5. Compressed air source tank; 6. Air supply assembly; 61. Annular main air supply pipe; 62. Inlet branch pipe; 63. Outlet pipe; 64. Connecting pipe; 65. Exhaust pipe; 66. Heat dissipation pipe; 7. Phase change cooling assembly; 71. Cooling pipe; 72. Liquid cooling tank; 73. Water inlet pipe; 8. Support base; 81. Arc-shaped connection part; 82. Bending buffer part. Detailed Implementation

[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1 As shown, a composite heat dissipation type blower includes a housing 1, a drive motor 2 and a controller, wherein the drive motor 2 is connected to an impeller 3 inside the housing 1.

[0023] The tail of the drive motor 2 is equipped with a composite heat dissipation mechanism to improve the heat dissipation effect. The composite heat dissipation mechanism includes a connecting component 4, a compressed air source tank 5, an air supply component 6, and a phase change cooling component 7 installed at the tail of the drive motor 2.

[0024] like Figure 2 As shown, the connecting assembly 4 includes a fixed plate 41 bolted to the tail of the drive motor 2, and a mounting ring 42 rotatably mounted on the fixed plate 41 via bearings. Four first positioning elements 43 (ball plungers) are provided on one side of the mounting ring 42. Figure 3As shown, the first positioning member 43 is positioned opposite to the first positioning groove 44 of the fixed plate 41. Under the condition of no external force or too small external force, the mounting ring 42 will not rotate. On the other side of the mounting ring 42, there are several circumferentially distributed mounting members 45. The mounting members 45 are used to fix the compressed air source tank 5. There are multiple compressed air source tanks 5.

[0025] like Figures 4-5 As shown, the mounting component 45 includes a positioning sleeve 451, one end of which is mounted on the mounting ring 42. The circumferential side of the positioning sleeve 451 has several circumferentially distributed through grooves 452. One end of the positioning sleeve 451 is rotatably connected to an operating ring 453 via a bearing. The circumferential side of the operating ring 453 is provided with anti-slip textures, and the upper end face of the operating ring 453 is provided with a spiral pattern 454. A top block 455 is provided inside the through grooves 452, and an engagement groove is provided at the bottom. The engagement groove engages with the spiral pattern 454. A second... Positioning component 456, the second positioning component 456 is positioned opposite to the second positioning groove 457 on the outer side of the positioning sleeve 451. The compressed air source tank 5 is inserted into the positioning sleeve 451. The rotating operating ring 453 can cause several top blocks 455 to move inward or outward synchronously under the action of the vortex pattern 454. During the inward movement, several top blocks 455 contact the circumferential side of the compressed air source tank 5 to achieve the fixed installation of the compressed air source tank 5. The outward movement realizes the release of the compressed air source tank 5, realizing the quick installation and disassembly of the compressed air source tank 5.

[0026] The output end of the compressed air source tank 5 is connected to a flexible pipe, which ensures that the normal supply of cooling gas is not affected when the compressed air source tank 5 is replaced by rotating the mounting plate. A first solenoid valve is installed on the flexible pipe to control the output of the corresponding compressed air source tank 5. The flexible pipe is connected to the inlet branch pipe 62 on the annular main air supply pipe 61 of the air supply assembly 6. Figures 6-7 As shown, the annular air supply main pipe 61 is installed at the head end of the drive motor 2. Several air outlet pipes 63 of the annular air supply main pipe 61 are equipped with first pressure regulating valves. Several first pressure regulating valves are connected to the heat dissipation pipe 66. The heat dissipation pipe 66 is connected to the air inlet end of the drive motor 2. The air outlet end of the drive motor 2 is connected to a connecting pipe 64. The connecting pipe 64 is connected to the housing 1 and the exhaust pipe 65 through a three-way solenoid valve. The first solenoid valve, the drive motor 2, the first pressure regulating valve and the three-way solenoid valve are all electrically connected to the controller.

[0027] The compressed air source tank 5 is connected to the drive motor 2 through the air supply component 6, and the air supply component 6 is equipped with a phase change cooling component 7.

[0028] The tangent of the three-way solenoid valve at the vent end of housing 1 coincides with the center line of the vent end of housing 1, allowing the pressurized gas after heat exchange to enter housing 1 and assist in blowing. Both housing 1 and the bottom of the fixed plate 41 are equipped with support bases 8. Each support base 8 includes an arc-shaped connecting part 81 and a bending buffer part 82. The bending buffer part 82 is located at both ends of the arc-shaped connecting part 81, and its design improves shock absorption.

[0029] The phase change cooling component 7 includes a cooling pipe 71 disposed inside the annular gas supply main pipe 61, with a phase change medium disposed inside the cooling pipe 71. One end of the cooling pipe 71 passes through the annular gas supply main pipe 61 and is equipped with a second pressure regulating valve. The other end of the cooling pipe 71 passes through the annular gas supply main pipe 61 and is connected to a second solenoid valve at the output end of the liquid cooling tank 72. A water receiving pipe 73 is disposed at the bottom of the annular gas supply main pipe 61. The annular gas supply main pipe 61, the gas outlet pipe 63, and the heat dissipation pipe 66 are all wrapped with heat insulation cotton on the outside. The second pressure regulating valve and the second solenoid valve are both electrically connected to the controller.

[0030] A monitoring mechanism is also provided, comprising a temperature monitoring component and a pressure monitoring component, both electrically connected to the controller. The temperature monitoring component includes a first temperature sensor located within the drive motor 2, a second temperature sensor located within the housing 1, and a third temperature sensor located within the annular air supply main pipe 61. At least two of each of the first, second, and third temperature sensors are provided and each is electrically connected to the controller, used to collect the temperature within the drive motor 2, the housing 1, and the annular air supply main pipe 61. The pressure monitoring component includes a pressure sensor located on the air outlet pipe 63, used to collect the outlet pressure of the annular air supply main pipe 61.

[0031] The composite heat dissipation mechanism is controlled based on temperature data. The maximum temperature values ​​collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are the first temperature value, the second temperature value, and the third temperature value, respectively.

[0032] The opening degrees of the first and second pressure regulating valves are determined based on the first and third temperature values; for example... Figure 8 As shown, when the first temperature value is greater than the set value, the first solenoid valve of one of the compressed air source tanks 5 is opened to perform initial air cooling. When the third temperature value exceeds the set value at the same time, the second solenoid valve is opened, so that the phase change medium (liquid nitrogen or other phase change material) enters the cooling pipe 71 and exchanges heat with the cooling gas. After the temperature of the cooling gas is reduced, the second solenoid valve is closed.

[0033] The corresponding channel of the three-way solenoid valve is opened according to the second temperature value, the third temperature value and the actual production needs. When it is necessary to reduce the blower temperature for cooling, and the third temperature value is lower than the second temperature value, the corresponding channel of the three-way solenoid valve in the housing 1 is opened to assist the blower while reducing the blower temperature. When the third temperature value is higher than the second temperature value, it is discharged through the exhaust pipe 65.

[0034] The corresponding compressed air source tank 5 is opened and closed according to the air pressure value collected by the air pressure sensor. When the air pressure of the air outlet tank is lower than the set value when the currently operating compressed air source tank 5 is supplying air, another compressed air source tank 5 is used to supply air to ensure the stability of the air supply pressure.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A composite heat dissipation type blower, comprising a housing, a drive motor, and a controller, wherein the drive motor is connected to an impeller inside the housing, characterized in that: The drive motor is equipped with a composite heat dissipation mechanism at its tail end. The composite heat dissipation mechanism includes a connecting component installed at the tail end of the drive motor. The connecting component is equipped with at least two compressed air source tanks. The compressed air source tanks are connected to the drive motor through an air supply component. The air supply component is equipped with a phase change cooling component.

2. The composite heat dissipation blower according to claim 1, characterized in that: The connecting assembly includes a fixed plate that is bolted to the tail of the drive motor. The fixed plate is rotatably equipped with a mounting ring. A plurality of first positioning members are provided on one side of the mounting ring. The first positioning members are positioned opposite to the first positioning groove of the fixed plate. An mounting member is provided on the other side of the mounting ring. The mounting member is used to fix the compressed air source tank.

3. A composite heat dissipation blower according to claim 2, characterized in that: The mounting components include a positioning sleeve, one end of which is mounted on a mounting ring. The circumferential side of the positioning sleeve has several circumferentially distributed through grooves. An operating ring is rotatably connected to one end of the positioning sleeve on its circumferential side. The circumferential side of the operating ring is provided with anti-slip textures, and the upper end face of the operating ring is provided with a spiral pattern. A top block is provided in the through groove, and a meshing groove is provided at the bottom of the bottom. The meshing groove meshes with the spiral pattern. A second positioning element is provided on the operating ring. The second positioning element is positioned opposite to the second positioning groove on the outside of the positioning sleeve. A compressed air source tank is inserted into the positioning sleeve, and several top blocks are in contact with the circumferential side of the compressed air source tank.

4. A composite heat dissipation blower according to claim 3, characterized in that: The output end of the compressed air source tank is connected to a flexible pipe. A first solenoid valve is installed on the flexible pipe. The flexible pipe is connected to the inlet branch pipe on the annular air supply main pipe of the air supply component. The annular air supply main pipe is installed at the head end of the drive motor. Several outlet pipes of the annular air supply main pipe are equipped with first pressure regulating valves. Several first pressure regulating valves are connected to heat dissipation pipes. The heat dissipation pipes are connected to the air inlet end of the drive motor. The air outlet end of the drive motor is connected to a connecting pipe. The connecting pipe is connected to the housing and exhaust pipe through a three-way solenoid valve. The first solenoid valve, drive motor, first pressure regulating valve, and three-way solenoid valve are all electrically connected to the controller.

5. A composite heat dissipation blower according to claim 4, characterized in that: The tangent of the three-way solenoid valve at the air inlet end of the housing coincides with the center line of the air outlet end of the housing. Both the housing and the bottom of the fixed plate are equipped with support bases. The support bases include arc-shaped connecting parts and bending buffer parts, with the bending buffer parts located at both ends of the arc-shaped connecting parts.

6. A composite heat dissipation blower according to claim 5, characterized in that: The phase change cooling component includes a cooling pipe installed inside the annular gas supply pipe, a phase change medium installed inside the cooling pipe, a second pressure regulating valve installed at one end of the cooling pipe through the annular gas supply pipe, and a second solenoid valve connected at the output end of the liquid cooling tank through the other end of the cooling pipe through the annular gas supply pipe. A water receiving pipe is installed at the bottom of the annular gas supply pipe, and the annular gas supply pipe, the gas outlet pipe and the heat dissipation pipe are all wrapped with heat insulation cotton on the outside. Both the second pressure regulating valve and the second solenoid valve are electrically connected to the controller.

7. A composite heat dissipation blower according to claim 6, characterized in that: It is also equipped with a monitoring mechanism, which includes a temperature monitoring component and a barometric pressure monitoring component, both of which are electrically connected to the controller.

8. A composite heat dissipation blower according to claim 7, characterized in that: The temperature monitoring component includes a first temperature sensor installed inside the drive motor, a second temperature sensor installed inside the housing, and a third temperature sensor installed inside the annular air supply main pipe; at least two of the first, second, and third temperature sensors are provided and each is electrically connected to the controller, for collecting the temperature inside the drive motor, inside the housing, and inside the annular air supply main pipe.

9. A composite heat dissipation blower according to claim 8, characterized in that: The air pressure monitoring component includes an air pressure sensor installed on the air outlet pipe for collecting the air outlet pressure of the annular air supply main pipe.

10. A composite heat dissipation blower according to claim 9, characterized in that: The composite heat dissipation mechanism is controlled based on temperature data. The maximum temperature values ​​collected by the first temperature sensor, the second temperature sensor and the third temperature sensor are the first temperature value, the second temperature value and the third temperature value, respectively. The opening degree of the first and second pressure regulating valves is determined based on the first and third temperature values. The corresponding compressed air source tank is opened and closed based on the outlet pressure value collected by the air pressure sensor.

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