Suspended permanent magnet synchronous axial flow fan

Abstract

The utility model belongs to the technical field of axial flow fans, and particularly relates to a suspension type permanent magnet synchronous axial flow fan which comprises a box body, air inlets, a console, a frequency converter and a fan, the air inlets are arranged on two sides of the box body in the width direction, the interior of the box body is divided into a frequency converter cabin, a fan cabin and a control cabin, and the frequency converter is installed in the frequency converter cabin. The side, close to the control cabin, of the frequency converter cabin is provided with a first ventilation opening, the side, away from the control cabin, of the frequency converter cabin is provided with a second ventilation opening, the frequency converter cabin is located above the fan cabin and connected to the top of the box body, the fan is installed in the fan cabin through a support, the output end is connected with the air outlet pipe, the air outlet pipe is connected to the box body through a flange, and the console is arranged in the control cabin. Compared with the prior art, the frequency converter cabin is arranged above the motor, so that the space of the fan cabin is fully utilized, and the size of the whole machine is reduced; by optimizing the air inlet channel, air flows through the motor more evenly through air inflow of the two sides of the fan cabin, the vortex area of the fan cabin is reduced, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to a suspended permanent magnet synchronous axial flow fan. Background Art

[0002] Axial flow fan is a common ventilation equipment, generally composed of motor, impeller, casing and other parts. The impeller is a three-dimensional flow impeller, which is directly connected to the motor shaft. When the motor drives the impeller to rotate, the air is pushed along the axial direction of the impeller, thus forming an airflow. The axial flow fan has a large air volume, can quickly achieve air exchange, has a simple structure, and is easy to install and maintain; it runs smoothly and has relatively low noise; it has a wide range of application scenarios and is often used in building ventilation, air circulation in industrial production, air conditioning systems, mineral flotation, aquaculture oxygenation and other fields.

[0003] The existing fan structure layout is divided into three independent compartments: control compartment, inverter compartment and fan compartment. This layout makes the overall size of the machine large, and there are eddy current areas in the heat dissipation duct, which leads to poor heat dissipation. By optimizing the overall structure and heat dissipation duct, the overall size of the machine is reduced, and the temperature of the motor and inverter is better controlled. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model develops a suspended permanent magnet synchronous axial flow fan. By placing the inverter cabin above the motor, the space of the fan cabin is fully utilized, the size of the whole machine is reduced, and the structure of the whole machine is more compact and beautiful. By optimizing the air inlet duct, air is taken in on both sides of the fan cabin to make the air flow more evenly through the motor, reducing the vortex area of ​​the fan cabin and improving the heat dissipation efficiency.

[0005] The technical solution to the technical problem solved by the utility model is: a suspended permanent magnet synchronous axial flow fan, comprising a box body, an air inlet, a control console, a frequency converter and a fan, the air inlet being arranged on both sides of the box body in the width direction, the inner part of the box body being divided into a frequency converter compartment, a fan compartment and a control compartment, the frequency converter being installed in the frequency converter compartment, a first vent being arranged on a side of the frequency converter compartment close to the control compartment, and a second vent being arranged on a side away from the control compartment, the frequency converter compartment being located above the fan compartment and connected to the top of the box body, the fan being installed in the fan compartment through a bracket, the output end being connected to the air outlet duct, the air outlet duct being connected to the box body through a flange, and the control console being arranged in the control compartment.

[0006] Preferably, the air inlet is detachably connected to the box body via a lock, and the air inlet is a double-layer steel wire mesh structure.

[0007] Preferably, the air inlet is detachably connected to the fan compartment door via a lock, and the fan compartment door is detachably connected to the box body via a lock.

[0008] Preferably, a door is hinged on one side of the box body close to the control cabin, a lock body is provided on the door, an opening is provided on the door at a position matching the control console, and the control console is connected to the opening.

[0009] Preferably, a grille cover is provided on the box door.

[0010] Preferably, a switch box is further provided in the control cabin, and a circuit breaker is provided in the switch box.

[0011] Preferably, a top door is hinged on the top of the box body, and a handle and a lock are provided on the top door.

[0012] Preferably, the bottom of the box is connected with supporting feet, and the top is connected with lifting buckles.

[0013] Preferably, a reinforcing beam and wiring holes are connected to the bottom of the box.

[0014] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0015] 1. By placing the inverter compartment above the motor and making full use of the fan compartment space, the new structure reduces the size of the whole machine by more than 30% without affecting the air intake, making the whole machine structure more compact and beautiful, and greatly reducing the processing and manufacturing cost of the whole machine;

[0016] 2. By optimizing the air intake duct, the temperature of the inverter is lower than before under the same operating conditions. The air intake on both sides of the fan cabin makes the air flow through the motor more evenly, reducing the vortex area in the fan cabin and improving the heat dissipation efficiency;

[0017] 3. By installing a grille cover on the box door, the air intake of the control cabin can be increased, which not only has a good heat dissipation effect on the control cabin, but also increases the air intake of the inverter cabin and improves the heat dissipation effect;

[0018] 4. By setting up the top door, the inverter can be easily inspected and maintained. The handle on the top door also makes the door opening and closing operation more convenient, and the lock can prevent the top door from being opened at will;

[0019] 5. By setting the lifting buckle on the box, it is easy to move and transport the equipment;

[0020] 6. By setting up a switch box in the control cabin, the circuit breaker can be better protected. At the same time, when the power needs to be cut off, it can be operated conveniently without opening the door;

[0021] 7. By setting a reinforcing beam at the bottom of the box, it can provide better stability for the equipment inside the box and increase the overall strength of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the front view of the utility model;

[0023] Figure 2 for Figure 1 Sectional view in the AA direction;

[0024] Figure 3 for Figure 1 Cross-sectional view in the BB direction;

[0025] Figure 4 It is a left view of the utility model;

[0026] Figure 5 It is a right side view of the utility model;

[0027] Figure 6 for Figure 5 Sectional view in the AA direction;

[0028] Figure 7 for Figure 5 Cross-sectional view in the BB direction;

[0029] Figure 8 It is the overall structural diagram of the utility model;

[0030] Fig. 9 It is a bottom view of the utility model.

[0031] Among them: 1. Box body; 101. Inverter compartment; 102. Fan compartment; 103. Control compartment; 2. Air inlet; 3. Box door; 31. Grille cover; 32. Lock body; 4. Control console; 5. Switch box; 51. Circuit breaker; 6. Inverter; 61. First vent; 62. Second vent; 7. Fan; 71. Bracket; 8. Air outlet duct; 9. Handle; 10. Support leg; 11. Lifting buckle; 12. Top door; 13. Reinforcement beam; 14. Wiring hole; 15. Lock. DETAILED DESCRIPTION

[0032] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0033] Example 1

[0034] See also Figures 1 to 9A suspended permanent magnet synchronous axial flow fan comprises a box body 1, an air inlet 2, a control console 4, a frequency converter 6 and a fan 7, wherein the air inlet 2 is arranged on both sides of the box body 1 in the width direction, and the interior of the box body 1 is divided into a frequency converter compartment 101, a fan compartment 102 and a control compartment 103, the frequency converter 6 is installed in the frequency converter compartment 101, a first vent 61 is arranged on a side of the frequency converter compartment 101 close to the control compartment 103, and a second vent 62 is arranged on a side away from the control compartment 103, the frequency converter compartment 101 is located above the fan compartment 102 and connected to the top of the box body 1, the fan 7 is installed in the fan compartment 102 through a bracket 71, and the output end is connected to the air outlet pipe 8, the air outlet pipe 8 is connected to the box body 1 through a flange, and the control console 4 is arranged in the control compartment 103.

[0035] like Figures 1 to 3 As shown, the air inlet 2 is detachably connected to the box body 1 through a lock 15. The air inlet 2 is a double-layer steel wire mesh structure. The double-layer steel wires are directly staggered with each other. The double-layer steel wires are filled with filter cotton, which can better prevent debris from entering the fan compartment 102 and causing damage to the equipment.

[0036] like Figure 1 and Figure 8 As shown, the air inlet 2 is detachably connected to the fan compartment door 21 via a lock buckle 15, and the fan compartment door 21 is detachably connected to the box body 1 via a lock buckle. The fan compartment door 21 is provided with a buckle handle 9 for easy holding after disassembly.

[0037] like Figure 5 and Figure 8 As shown, a door 3 is hinged on one side of the box body 1 close to the control cabin 103, a lock body 32 is arranged on the door 3, an opening is arranged on the door 3 at a position matching the control console 4, and the control console 4 is connected at the opening.

[0038] like Figure 5 and Figure 8 As shown, a grille cover 31 is provided on the box door 3. The grille cover 31 has a certain guiding effect on the cold air, so that the cold air can enter the inverter compartment 101 faster.

[0039] like Figure 1 and Figure 6 As shown, the control cabin 103 is also provided with a switch box 5, and the switch box 5 is provided with a circuit breaker 51. When encountering maintenance, the power can be quickly cut off. The switch box 5 can also provide better waterproof and dustproof protection for the circuit breaker 51.

[0040] like Figure 8 As shown, a top door 12 is hinged on the top of the box body 1, and a buckle 9 and a lock buckle 15 are provided on the top door 12.

[0041] like Figures 1 to 8 As shown, the bottom of the box body 1 is connected to a support leg 10, and the top is connected to a lifting buckle 11.

[0042] like Fig. 9 As shown, a reinforcing beam 13 and a wiring hole 14 are connected to the bottom of the box body 1.

[0043] Principle and operation process

[0044] The utility model optimizes the overall structural layout and adopts a control console 4 to control various internal components, and sets the inverter compartment 101 above the fan 7, fully utilizing the space of the fan compartment 102 and reducing the size of the whole machine. By setting a first vent 61 and a second vent 62 on the inverter compartment 101, and setting air inlets 2 on both sides of the width direction of the box body 1, when the fan 7 is running, cold air mainly enters the box body 1 from the air inlet 2, and at the same time, a part of cold air also enters through the grille cover 31 of the control compartment 103. The cold air entering from the grille cover 31 will enter the inverter compartment 101 through the first vent 61. Since the inverter 6 itself has a cooling fan, a circulating airway can be formed inside the inverter compartment 101, and cold air flows in through the first vent 61, and hot air flows out through the second vent 62 to The fan compartment 102 is used to cool the inverter 6; the cold air entering from the air inlet 2 will take away part of the heat on the surface of the fan 7, and then be discharged through the fan 7, thereby cooling the equipment inside the entire box 1. The cold air forms two passages inside the box 1, one is entering from the grille cover 31, passing through the inverter compartment 101 and flowing into the fan compartment 102, and the other is that the cold air enters through the air inlet 2. Since the air inlet 2 is provided on both sides of the width direction of the box 1, the air flow passes through the motor more evenly, reducing the vortex area of ​​the fan compartment 102. The cold air will flow through the fan 7 and then gather at the fan 7. The air intake section of the fan 7 has low air pressure, and the hot air flowing out of the inverter compartment 101 and the hot air flowing through the surface of the fan 7 after flowing in through the air inlet 2 will gather at the air inlet end of the fan 7, and then be gathered by the fan 7 into the air outlet 8 for discharge.

[0045] When there is a fault in the control room that needs to be checked, first open the switch box 5, disconnect the internal circuit breaker 51, and then open the box door 3 to check the internal fault; when the inverter 6 fails, open the lock 15 on the top door 12, pull the buckle 9, and open the top door 12 to check the fault of the inverter 6; when there is a problem inside the fan compartment 102, open the lock 15 on the fan compartment door 21, and after the fan compartment door 21 is disassembled, the inside of the fan compartment 102 can be inspected.

[0046] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A suspended permanent magnet synchronous axial flow fan, characterized in that: The invention comprises a housing (1), an air inlet (2), a control console (4), a frequency converter (6) and a fan (7), wherein the air inlet (2) is arranged on both sides of the housing (1) in a width direction, the interior of the housing (1) is divided into a frequency converter compartment (101), a fan compartment (102) and a control compartment (103), the frequency converter (6) is installed in the frequency converter compartment (101), a first vent (61) is arranged on a side of the frequency converter compartment (101) close to the control compartment (103), and a second vent (62) is arranged on a side away from the control compartment (103), the frequency converter compartment (101) is located above the fan compartment (102) and connected to the top of the housing (1), the fan (7) is installed in the fan compartment (102) via a bracket (71), and an output end is connected to an air outlet pipe (8), the air outlet pipe (8) is connected to the housing (1) via a flange, and the control console (4) is arranged in the control compartment (103).

2. A suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: The air inlet (2) is detachably connected to the box body (1) via a lock buckle (15), and the air inlet (2) is a double-layer steel wire mesh structure.

3. A suspended permanent magnet synchronous axial flow fan according to claim 2, characterized in that: The air inlet (2) is detachably connected to the fan compartment door (21) via a lock buckle (15), and the fan compartment door (21) is detachably connected to the box body (1) via a lock buckle.

4. The suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: A door (3) is hingedly connected to one side of the box body (1) close to the control cabin (103), a lock body (32) is arranged on the door (3), an opening is arranged at a position on the door (3) matching the control console (4), and the control console (4) is connected to the opening.

5. A suspended permanent magnet synchronous axial flow fan according to claim 4, characterized in that: The box door (3) is provided with a grille cover (31).

6. The suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: A switch box (5) is also provided in the control cabin (103), and a circuit breaker (51) is provided in the switch box (5).

7. The suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: A top door (12) is hingedly connected to the top of the box body (1), and a buckle (9) and a lock buckle (15) are provided on the top door (12).

8. The suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: The bottom of the box body (1) is connected to a support foot (10), and the top is connected to a lifting buckle (11).

9. The suspended permanent magnet synchronous axial flow fan according to claim 1, characterized in that: A reinforcing beam (13) and a wiring hole (14) are connected to the bottom of the box body (1).

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