KR101221395B1 - Turbo blower - Google Patents

Abstract

PURPOSE: A turbo blower device is provided to cool a driving unit and a control unit which are connected to each other with external air flowing in through one air passage, thereby simplifying a structure with an inflow of external air for cooling. CONSTITUTION: A turbo blower device comprises a driving unit(200) and a control unit. The driving unit comprises an outer housing, an inner housing, a main impeller, a second cooling air passage, and a cooling impeller. An inlet and an outlet are formed in the outer circumference of the outer housing. The inner housing is formed in the inside of the outer housing and comprises a stator, a rotor, and a rotary shaft. The main impeller is comprised in one end portion of the rotary shaft, thereby pressing and blowing air flowing into the inlet. The second cooling air passage is formed in the outer housing to induce external air to the inside of the rotary shaft. The cooling impeller makes the external air flowing through second cooling air passage forcibly flow in the inside of the rotary shaft. The cooling impeller is arranged in a side opposite to the inlet around the main impeller.

Description

Turbo Blower {Turbo Blower}

The present invention relates to a turbo blower, and in particular, the drive unit and the control unit are formed so as to communicate with each other to achieve the cooling by one cooling passage at the same time to maximize the cooling efficiency and to reduce the flow loss in front of the main impeller and the separation wall It relates to a turbo blower device for arranging the drive diagonally to maximize the distance between them.

In general, a blower refers to a mechanism for generating energy of a fluid, and the blower is composed of a main impeller causing a flow and a casing for guiding the flow into and out of the main impeller.

There are a number of methods for classifying blowers, the most common method being classification by the characteristics of the flow through the vanes, which is called Axial Blower, Radial Blower, and Mixed Flow Blower. Blower).

When air flows in parallel with the rotor shaft, it is called an axial blower. In this case, the flow direction of the main impeller inlet and outlet coincides with the rotary shaft. Propeller blowers, ie ordinary household fans, belong here.

Axial blowers are used where the energy applied is primarily used to increase the velocity of the fluid, so that a lot of flow is required but not so much pressure.

The radial blower is mainly designed to increase the pressure by centrifugal force and is therefore used where pressure is needed rather than flow rate.

In addition, the centrifugal blower generally uses a spiral casing such that the main impeller inlet flow is in the direction of the rotational axis but the outlet flow is at right angles to the axis of rotation, and the tubular casing is such that both the main impeller inlet flow and the outlet flow are in the direction of the rotation axis. It is largely divided into the case of using.

In addition, the mixed flow blower is used when an increase in flow rate and pressure is required when axial and radial flows exist together in the main impeller.

In addition, new types of blowers, which do not depend on the rotation of the main impeller, are used for special purposes. In addition, blowers that do not require a motor using piezoelectric elements are used. The blower should be appropriately selected according to its application and operating characteristics. Industrially, it is mainly used for air conditioning system, various intake and exhaust systems. The size also varies from small to large industrial blowers such as computer cooling fans.

The turbo blower, which is a kind of centrifugal blower, refers to a centrifugal blower having a relatively large pressure ratio, and rotates the main impeller in a container at high speed so that the gas flows radially. Among the centrifugal blowers using centrifugal force, those having a small pressure ratio are called centrifugal ventilators and turbo blowers, and those having a higher pressure ratio are called centrifugal blowers and turbo blowers.

As described above, the turbo blower of the prior art is disposed on one side of the main body 10, as shown in Figs. 1 and 2, and the drive unit 20 for sucking and blowing outside air and the other side of the main body 10. The controller 50 divided into the driving unit 20 and the separating wall 15 is disposed.

The upper side of the drive unit 20 is provided with a discharge port 30 for blowing air pressurized through the main impeller of the drive unit to the outside.

The main body 10 has an inlet 12 through which the outside air is introduced into the lower portion of one side, and the air introduced into the inside through the inlet 12 is disposed on the upper portion of the main body 10 via the driving unit 20. Passing through the fan 40 is the cooling of the drive unit 20 is made.

In addition, since the control unit 50 has a cabinet structure disposed inside the other side of the drive unit 20 separately sealed, the control unit 50 has a separate cooling process from the drive unit 20.

Reference numeral "55" indicates an inverter.

In order to cool the control unit 50, vent holes 14 and 16 are formed at the upper and lower sides of the main body 10, respectively, to naturally cool the air through inflow and outflow of air.

For this reason, the conventional turbo blower has a hassle that requires a separate cooling structure for cooling the drive unit 20 and the control unit 50.

In addition, since there is no device for cooling the rotor and the rotor disposed in the driving unit, there is a concern that it may be easily overheated and deteriorated, and thus there is a disadvantage in that the performance of the component is degraded.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a natural cooling through one cooling passage and a drive unit and a control unit of a turbo blower, and to individually control each component in the drive unit. The present invention provides a turbo blower having an improved structure so that cooling can prevent product degradation and improve component reliability.

The present invention for achieving the above object is disposed on one inner side of the main body and the driving unit for sucking and blowing the outside air introduced through the inlet formed in one lower portion of the main body, and the control unit is disposed on the other inside of the main body,

A flow path formed at a lower portion of the main body to be introduced into the outside air introduced through the inlet and communicating with the driving unit and the control unit, respectively;

At least one partition wall is disposed inside the flow path to separate the inner space to be divided into the outside air flowing through the inlet, and the sound absorbing material is coupled to both sides,

The outside air flowing through the inlet port flows into the driving unit and the control unit through a flow path to cool the driving unit and the control unit.

The drive unit is coupled to the cover on one side and the outer housing formed in the inlet and outlet holes in the lower and upper outer peripheral surface,

An inner housing disposed inside the outer housing and having a stator wound around a coil on an inner surface thereof;

The main impeller is rotatably installed in the inner housing and coupled to the main impeller to pressurize and blow out the outside air introduced through the suction port, and the rotor is interlocked on the outer surface thereof.

A plurality of cooling fins are formed on the outer circumferential surface of the inner housing.

The outer housing is formed to communicate with the inside of the inner housing is formed with a first cooling flow path for guiding the outside air between the rotor and the stator.

The rotating shaft is disposed on an outer circumferential surface and further includes a suction blade for introducing the external air introduced through the first cooling flow path when the rotating shaft is rotated between the rotor and the stator.

The outer housing is formed with a second cooling flow path for inducing outside air into the rotating shaft.

It is further provided with a rotary impeller disposed at the end of the rotary shaft and coupled to interlock with the main impeller and forced to introduce outside air introduced through the second cooling channel into the rotary shaft.

The present invention is formed so that the inside of the main body of the turbo blower is in communication with each other so that the drive unit and the control unit is cooled together by the outside air introduced through one air flow path, thereby having an effect that can simplify the configuration by simplifying the outdoor air inlet structure. .

In addition, the present invention is to cool each of the components constituting the drive unit using the first and second cooling passages and the cooling impeller is made separately, it is possible to prevent degradation due to overheating of the drive unit to extend the life of the parts Can improve the parts reliability.

1 is a plan view showing a conventional turbo blower.
2 is a configuration diagram schematically showing the air flow process of FIG.
Figure 3 is a perspective view of a turbo blower device according to the present invention.
Figure 4 is a schematic view showing an outdoor air flow process of the present invention.
Figure 5 is a cross-sectional view of the coupling state showing the drive unit of the present invention.
6 is a side view of Fig.
Figure 7 is a state diagram showing the flow of outside air flows through the first and second cooling flow path of the present invention.
8 is a perspective view showing the impeller and the coupler for cooling the present invention.
Figure 9 is a sectional view showing another embodiment of the drive unit of the present invention.

The present invention is formed so that the inside of the main body of the turbo blower is in communication with each other so that the drive unit and the control unit is cooled together by the outside air introduced through one air flow path, and the cooling of each component disposed inside the drive unit is individually It is to be done.

In particular, the present invention proposes a structure in which the driving unit is disposed diagonally to minimize the distance between the front end of the main impeller and the separation wall to reduce the flow loss.

Hereinafter, the present invention will be given the same name for the components of the prior art described above, and the reference numerals for each component will be given different reference numerals to distinguish them from the prior art.

3 to 8, the turbo blower according to the present invention includes a driving unit 200 for sucking and blowing outside air introduced through the inlet 110 formed at one lower side of the main body 100. The control unit 500 is disposed at one inner side of the main body 100, and the control unit 500 is disposed at the other inner side of the main body 100. The outside air introduced through the inlet 110 is introduced into the lower part of the main body 100, and the driving unit 200 is introduced. And a flow path 105 communicating with the control unit 500, respectively, and at least one partition wall for separating the internal space to divide and transfer the outside air introduced through the inlet 110 into the flow path 105. 130 has a structure arranged.

The driving unit 200 and the control unit 500 are disposed on the one side and the other side of the main body 100 so as to be separated through the separation wall 120, and the cooling is performed by the outside air introduced into the flow path 105 communicating with each other. It is.

In more detail, the separation wall 120 has a through hole 125 formed therein, and an inner side of the main body 100 in which the driving unit 200 is disposed and an inner side of the main body 100 in which the control unit 500 is disposed communicate with each other. It is formed to be.

The through hole 125 is a part of the flow path 105 separated by the partition wall 130, that is, a part of the separation wall 120 is formed in a perforated manner.

In addition, a plurality of partition walls 130 spaced apart from each other are disposed in the flow path 105, which is a space into which outside air flows, so as to divide the space.

The partition 130 is arranged to stably flow the outside air introduced through the inlet 110 so as to reduce the suction loss of the air.

In addition, sound absorbing materials 135 are disposed on both sides of the partition wall 130 to reduce noise due to the flow of air.

That is, the partition wall has a function of branching so that the flow of the outside air introduced through the driving unit 200 and the flow of the outside air passing through the control unit 500 do not collide with each other and cancel each other out.

The driving unit 200 is disposed inside the outer housing 210 and the outer housing 210 in which the cover 220 is coupled to one side and the inlet hole 212 and the discharge hole 214 are formed at the lower and upper outer circumferential surfaces thereof. An inner housing 230 to which a stator 245 wound with a coil is coupled to the side, and a main impeller rotatably installed in the inner housing 230 and pressurized and blown outside air introduced through the inlet 202 at the end ( 260 is coupled and consists of a rotating shaft 250 is disposed so that the rotor 240 is interlocked on the outer surface.

That is, the driving unit 200 is roughly divided into a stator composed of an outer housing 210 and an inner housing 230, which are stators, and a rotor composed of a rotation shaft 250, a rotor 240, and a stator 245.

The driving unit 200 is the outer shaft of the outer housing 210 through the inlet hole 212 formed in the lower peripheral surface of the outer housing 210 during the rotation operation of the rotating shaft 250 and the rotor 240 and the stator 245 The air flows through the inside and is discharged through the discharge hole 214 formed in the upper portion.

As a result, the outside air cools the inner housing 230 while passing through the outside of the inner housing 230 as shown in FIG. 6.

The inner housing 230 is preferably formed with a plurality of cooling fins 232 on the outer circumferential surface so that the outside air flowing through the inlet hole 212 and the air in the inner housing 230 heat exchange.

Also preferably, the outer housing 210 is formed to communicate with the inside of the inner housing 230 to form a first cooling passage 216 for guiding the outside air to the rotor 240 and the stator 245. do.

Since the first cooling passage 216 is formed to be perforated in the lower portion of the outer housing 210 to communicate with the inside of the inner housing 230, by inducing the outside air into the gap between the rotor 240 and the stator 245. The outside air passes through the inside of the outer housing 210 and the inner housing 230 to be discharged toward the cover 220.

To this end, it is preferable that an air passage in the form of a gap or groove is formed between the rotor 240 and the stator 245 so that outside air can pass therethrough.

In addition, the outer housing 210 is formed with a second cooling flow path 218 for inducing outside air into the rotating shaft 250.

The second cooling passage 218 is formed to be perforated in the lower portion of the outer housing 210, and the outside air is formed to flow into the inside of the rotating shaft 250 through the end of the rotating shaft 250.

More preferably, a cooling impeller 280 is provided to forcibly introduce the outside air introduced through the second cooling passage 218 into the inside of the rotating shaft 250.

The cooling impeller 280 is disposed at the end of the rotating shaft 250 and coupled to interlock with the main impeller 260.

In addition, the cooling impeller 280 is hollow is formed, a plurality of impeller wings 282 is formed on the hollow inner circumference to force the outside air flowing through the second cooling passage 218 into the interior of the rotary shaft 250 Has the function.

 The operation of the present invention having such a configuration is as follows.

In the turbo blower according to the present invention, since the driving unit 200 and the control unit 500 are arranged to communicate with each other through the flow path 105, natural cooling is performed by the outside air introduced through the inlet 110.

At this time, the flow of the outside air is introduced into the outside air through the inlet 110 perforated in one lower portion of the main body 100, through the through hole 125 of the separation wall 120 in a state branched by the partition wall 130 The control unit 500 is introduced into the other side of the main body 100 in which the control unit 500 is disposed, and also flows into the outer housing 210 through the inlet hole 212 of the driving unit 200.

The outside air introduced into the other side of the main body 100 has a flow process discharged to the outside through the air vent 140 formed on the other side of the main body 100 after cooling the control unit 500 and the inverter 550 In this process, the controller 500 and the inverter 550 are cooled.

Outside air introduced into the outer housing 210 is discharged to the outside through the discharge hole 214.

In addition, the driving unit 200 is the air flowing through the inlet 202 when the main impeller 260 is driven by the main impeller 260 is blown to the discharge port 300 side through the casing 270 and the existing method Since the same, detailed description thereof will be omitted.

Meanwhile, functions of the first and second cooling passages 216 and 218 and the cooling impeller 280 for cooling the respective components of the driving unit 200 are as follows.

Since the first cooling passage 216 is formed in the lower portion of the outer housing 210 so as to communicate with the inside of the inner housing 230, the outside air passes through the inside of the inner housing 230 and is externally opened through the cover 220. During the discharge process, the stator 245 and the rotor 240 are cooled while passing between the stator 245 and the rotor 240 disposed inside the inner housing 230.

Since the second cooling passage 218 is formed in the lower portion of the outer housing 210 so as to communicate with the inside of the rotation shaft 250, the outside air passes through the inside of the rotation shaft 250 and is discharged to the outside through the cover 220. While performing the function of cooling the rotating shaft 250.

At this time, the cooling impeller 280 is rotated in conjunction with the drive of the main impeller 260, the external air flowing through the second cooling flow path 218 is forced to flow into the interior of the rotation shaft 250 to rotate the rotation shaft 250 ) Cooling efficiency can be improved.

On the other hand, Figure 9 is a view showing another embodiment of the present invention, the configuration of the third cooling passage 216a is formed in the upper portion of the outer housing 210 to communicate with the inside of the inner housing 230, The fourth cooling passage 252 is formed on the rotation shaft 250 so as to communicate with the inside of the inner housing 230.

This is because the outside air flowing into the inside of the inner housing 230 through the third cooling passage 216a is discharged to the side of the cover 220 to cool the rotor 240 and the stator 245, 252 to the inside of the rotating shaft 250 and then discharged to the cover 220 side to cool the rotating shaft 250. [

Therefore, the present invention is naturally cooled by the outside air introduced through the one air flow path in which the driving unit 200 and the control unit 500 communicate with each other, and the individual cooling for each component constituting the driving unit 200 When possible, overheating can be prevented to extend component life.

Description of the Related Art [0002]
100: main body 105: flow path
110: inlet 120: dividing wall
125: through hole 130: bulkhead
135: sound absorbing material 200: drive unit
202: inlet 210: outer housing
212 inlet hole 214 outlet hole
216: first cooling euro 216a: third cooling euro
218: second cooling euro 220: cover
230: inner housing 232: cooling fin
240: rotor 245: stator
250: rotating shaft 252: fourth cooling flow path
255: rotating blade 260: main impeller
270: casing 280: cooling impeller
282: impeller wing 300: discharge port
500: control unit 550: inverter

Claims (4)

The driving unit 200 is disposed on one inner side of the main body 100 and sucks and blows outside air introduced through the inlet 110 formed at one lower side of the main body 100, and the control unit is disposed on the other side of the main body 100. In the turbo blower device 500 is arranged,
The drive unit 200,
An outer housing 210 having an inlet hole 212 and an outlet hole 214 formed on an outer circumferential surface thereof;
An inner housing 230 disposed inside the outer housing 210 and having a stator 245, a rotor 240, and a rotation shaft 250 therein;
A main impeller 260 provided at one end of the rotating shaft to pressurize and blow air introduced through the suction port 202;
A second cooling passage 218 formed in the outer housing 210 to guide outside air into the rotating shaft 250; And
And a cooling impeller 280 for forcibly flowing the cooling air introduced through the second cooling flow path into the rotary shaft 250.
The cooling impeller is disposed on the opposite side of the inlet 202 with respect to the main impeller, and the cooling impeller passes through the inside of the rotating shaft by flowing cooling air in a direction opposite to the main impeller. Turbo blower device characterized in that the discharge to the outside. The method of claim 1,
A flow path formed at a lower portion of the main body 100 to be formed so that outside air introduced through the inlet 110 is introduced and communicating with the driving unit 200 and the control unit 500, respectively;
At least one partition wall 130 is disposed inside the flow path to separate the inner space so as to divide the outside air introduced through the inlet 110 and the sound absorbing material 135 is coupled to both sides,
Turbo air blower characterized in that the outside air flowing through the inlet is introduced into the drive unit and the control unit through a flow path to cool the drive unit and the control unit. The method of claim 1,
The outer housing 210 is formed so as to communicate with the inside of the inner housing 230 is characterized in that the first cooling passage 216 is formed to guide the outside air to the rotor 240 and the stator 245 side Blower device. The method of claim 3,
The rotary shaft 250 further includes a rotary blade 255 for introducing the outside air introduced through the first cooling passage 216 between the rotor 240 and the stator 245. .

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