KR200407907Y1 - Blade construction for ventilation - Google Patents

Abstract

The present invention relates to a fan blade coupling structure, in the fan blade coupling structure, the shaft is formed in the center, the motor shaft coupling portion is formed on the inner side of the shaft, a plurality of sockets are formed inside the outer peripheral surface, than the socket A hub further having a plurality of hooks formed therein; A rotating plate formed with a bearing coupled to the shaft and having a plurality of linkages formed on an outer circumferential surface thereof, and a plurality of hooks formed on an inner side of the linkage; A spring connecting the hook formed on the hub and the rotating plate; And a wing formed with a protrusion to be inserted into the linkage of the rotating plate and coupled to the socket. Characterized in that comprises a.

Ventilator, Wings, Combine, Structure    

Description

Ventilator wing coupling structure {BLADE CONSTRUCTION FOR VENTILATION}

1 is a view showing a fan blade coupling structure according to an embodiment of the present invention.

Figure 2 is a view showing a bottom view of the hub used in the fan blade coupling structure according to an embodiment of the present invention

Figure 3 is a view showing a cross-sectional view of the hub used in the fan blade coupling structure according to an embodiment of the present invention.

Figure 4 is a view showing a perspective view of a rotating plate used in the fan blade coupling structure according to an embodiment of the present invention.

5 is a view showing a wing used in the fan blade coupling structure according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: Ventilator wing coupling structure

10: Hub

12: axis

13, 23: prop wall

15: motor shaft coupling portion

16: socket

18, 28: hanger

20: turntable

22: bearing

26: linkage

30: wings

31: Jack

32: turning

40: spring

The present invention relates to a fan blade coupling structure, and more particularly, to a fan blade coupling structure for coupling the blade to the socket formed in the central hub and enabling the opening and closing of the ventilation port by using the rotary plate interlocked with the blade.

A ventilator is a device mainly used to exhaust indoor air from which odors or harmful gases are generated, or to supply fresh outdoor air to an indoor room. In addition, in order to let the odor or harmful gas in the room flow out, and to live without interference from the room containing the odor or harmful gas, it discharges the indoor air and decompresses the corresponding room to maintain the negative pressure. It is a device to perform. At this time, the discharged air is discharged through an outdoor roof or a side wall vent, and fresh air is introduced into the interior, and it is usefully used in various buildings and facilities for controlling the diffusion path of harmful gases and odors. .

As described above, such a ventilator, which is usefully used in a workplace, a factory, a restaurant, a toilet, a public building, and the like, typically plays a role as described above by discharging the indoor air to be ventilated by rotating a wing with an electric motor.

Conventional ventilator that performs the above role is usually used a number of parts, due to this factor is a complicated manufacturing process for those skilled in the production or manufacturing due to these factors has been a factor of increasing labor costs or production costs. In other words, in order to manufacture a conventional fan, a fan, a wing body, a cover for covering the wing body, a rotating plate, a centrifugal weight, a spring, or an elastic ring are used to use the fan. However, this structure contained many small parts, which required more time for the manufacturer to combine these parts to create a single fan. In other words, even if only one of these coupling elements is added, the time required for assembly has to be paid more, and it has been a major factor to increase the labor cost for those skilled in the art of assembling such a fan manually.

In addition, the fan is often required to be driven by the rotation of the motor for 24 hours, which means that the fan is placed in the vibration state of the motor and the friction or collision of air and wings for 24 hours. This means that the ventilator will operate in situations of high physical stress. However, the failure rate increases more and more every time one component is increased in such a situation, and in case of using a large number of parts in such a fan as in the prior art, the maintenance cost is high, and such a conventional fan has a replacement cycle. It shortened, resulting in economic cost burden from consumers.

In addition, in the fan, the motor is the most expensive part of the raw material and has internal frictional force by rotation, and should be able to adapt to the physical stress situation as described above. There is a need to use plastic, which is a lightweight material, or to make parts lighter and lighter

In addition, the greater the number of parts, the greater the driving force required to drive the electric motor, and the conventional ventilator has a lot of parts, which is complicated and frequent and the heavy weight due to the use of multiple parts. In order to drive such a heavy blower, a larger electric motor is used to consume more energy, and in order to do this, it is necessary to improve the point of using a larger electric motor.

The present invention has been made to solve the above problems, and an object of the present invention is to propose a fan using an integral hub made to reduce the parts as much as possible.

In addition, by using the two components of the hub and the rotating plate by presenting the rotating plate slidingly coupled with the hub, in the manufacturing process by the combination of only two components, such as the hub and the rotating plate to reduce the manufacturing time The purpose is to present.

In addition, the hub and the rotating plate is an object of the present invention to provide a ventilator so that the assembly and disassembly can be made very simple and easy to easily fit the bearing already formed on the rotating plate by the sliding coupling in the center of the hub.

In addition, by reducing the exhaust fan components as described above aims to reduce the cost to manufacturers and consumers by presenting a fan with a smaller failure rate than conventional fans.

In addition, it is an object of the present invention to propose an economical fan that can reduce the weight of the motor shaft by reducing the parts to extend the life of the fan and reduce the power consumption.

In addition, an object of the present invention is to provide a ventilator configured to increase the flow rate of the vent using a vane formed in the form of an airfoil of the vane and to achieve the air flow quickly.

In addition, it is an object of the present invention to propose a structure that can further improve the sealability of the place where the fan is installed by presenting a special form of the hub.

In addition, it is an object of the present invention to propose a fan blade coupling structure that can be sealed and opened as a minimum component compared to the prior art.

The present invention is devised to achieve the above object, it comprises a hub, a rotating plate, a spring, a wing.

According to one embodiment of the present invention, a shaft is formed in the center, the motor shaft coupling portion is formed inside the shaft, a plurality of sockets are formed inside the outer peripheral surface, a plurality of hooks are formed on the inner side than the socket Hub;

A rotating plate formed with a bearing coupled to the shaft and having a plurality of linkages formed on an outer circumferential surface thereof, and a plurality of hooks formed on an inner side of the linkage;

A spring connecting the hook formed on the hub and the rotating plate; And

 A wing having a protrusion formed in the linkage of the rotating plate and having a jack coupled to the socket;

Characterized in that comprises a.

First, the hub is coupled to the wing of the present shaft is formed in the center, the inner shaft is formed in the motor shaft coupling portion to be rotated by the rotation of the motor shaft. In addition, it is desirable to form a support wall so that the shaft is not damaged by the pressure applied during the manufacturing process or when the rotation is performed. The inner circumferential surface of the hub is formed with a socket for engaging the wing.

In the fan blade coupling structure, a plurality of blades are coupled to a hub, and rotation is made in a socket where the blades are coupled. At this time, the blades are opened and closed at a location where a fan is installed. When it is driven, and when it is closed, the fan stops driving so that no insects or foreign substances flow from the outside.

As such, according to an embodiment of the present invention, the hub to which the wings are coupled has a form that is easy to manufacture integrally by injection or plastic molding, so that the wings and the following parts can be easily coupled to the hub that is actually manufactured. It is characterized by manufacturing in one piece.

 A shaft is formed at the center of the hub so that the rotating plate can be coupled, and the cylindrical bearing can be coupled to the shaft without any other special structure, and a sliding coupling is formed in which the hub and the rotating plate slide together to form a rotation. It is characteristic.

In addition, a socket is formed inside the outer circumferential surface of the hub so that the wings can be coupled, the outer circumferential surface is formed to be inclined to minimize the gap between the wings. In the socket formed as described above, each blade rotates by a finite angle, and when the fan is stopped, the blades are all closed. At this time, the closure is more completely made by the shape of the inclined socket.

 In addition, the upper side of the hub has a curved surface as a way to reduce the turbulence is formed by the smooth flow of air. When forming the socket and the shaft formed in the hub is integrally formed by injection or plastic molding it will be a preferred way to prevent the shaft from being broken properly formed. In addition, the support wall formed on the rotating plate will also prevent the bearing from being broken.

The shaft is formed to protrude in a cylindrical shape on the lower side of the hub and the shaft of the electric motor is coupled to the inner side of the cylindrical shaft. The rotation of the electric motor causes the hub to rotate and the power coupled to the blades coupled to the outer peripheral surface of the hub. Delivery takes place.

A hook for hanging a spring is formed between the shaft of the hub and the socket formed inside the outer circumferential surface thereof, and according to an embodiment of the present invention, only two or more hooks may be formed.

In one embodiment of the present invention, the bearing formed in the center of the rotating plate is coupled to the shaft formed in the center of the hub, the rotating plate is connected to the hook formed on the hub with a spring so that the rotation can be made within the effective range .

The rotating plate is formed in the center of the cylindrical bearing protruding in the center so as to fit into the cylindrical shaft of the hub in the center, and to form a brace wall to withstand the pressure applied to the rotating plate or when the cylindrical bearing is rotated It is preferable to place, and to form a brace wall toward the outer circumferential surface with respect to the above bearing will be a preferred way to prevent the damage of the bearing.

In addition, the hook is formed on the rotating plate is connected to the hook formed by the spring and the hub, the spring is connected between the hook formed on the hub and the rotating plate so that the spring can be stretched between them.

That is, in the present invention, the fan is rotated by the power transmitted to the blade through the hub by the rotation of the electric motor, the blade of the fan is opened by the action of the center force generated by the rotation of the motor to the center of gravity to one side It is in the shape of a spiral. Wings that are shaped as described above and coupled to the hub are interlocked together when the hub is accelerated by an electric motor.

At this time, the blade is coupled in a state capable of rotating by a finite angle in the socket. When a voltage is applied to the motor, the center force acts on the blades by the rotation of the hub, so that the center of gravity of the blades is directed toward the center of the shaft.

 When the motor reaches the steady state while rotating at the maximum speed, the blade of the fan is formed to be opened to the maximum.

At this time, the spring connected to the hook of the hub and the rotating plate increases, and when the rotation of the motor stops, the rotating plate rotates about the axis by the restoring force of the spring, and the fan blade returns to its original position.

At this time, the wings of the fan are in contact with each other, thereby preventing the inflow of foreign matters such as insects and dust from the outside. That is, when viewed from the front, it appears to be blocked.

As described above, the spring is stretched, the blade is rotated in the socket is coupled to the hub and the blade, the jack formed on one side of the blade is inserted into the linkage of the rotary plate when the rotary plate is rotated when the interlock The restoring force of the spring is transmitted. That is, when the spring is restored, the rotating plate is rotated, and the restoring force is transmitted to the protrusions inserted into the linkage so as to rotate through the socket and the wings are all closed.

When the wing is closed as described above is formed in a whirlwind shape, they play a role of opening due to the generation of the central force by the rotation of the electric motor.

As described above, the wing is preferably formed in an air foil type to increase the amount of ventilation when the wing is opened and the ventilation is performed. The air foil method is also used in the centrifugal fan structure, in the present invention, the wing is tapered from the front to the rear toward the air foil type to increase the amount of ventilation.

The hub is a one-piece type that is not made in such a way that the cover or cap is fastened, and is easy to manufacture, so that the assembly is simplified to reduce the cost of assembly time when producing the product.

In addition, as in the shaft formed to protrude downward from the center of the hub, the bearing formed in the center of the rotating plate is preferably formed in an easy size when manually coupling the hub and the rotating plate.

 This form allows the operator to immediately recognize the coupling position of the parts, it is possible to increase the efficiency of the work simply by inserting and coupling. In addition, since the shaft formed on the hub is not fine compared to the entire part, there is no fear of detachment or separation, thereby forming a rigid fan blade coupling structure.

Hereinafter, a detailed description of the present invention will be described in detail with reference to the drawings.

1 is a view showing a fan blade coupling structure according to an embodiment of the present invention.

Referring to FIG. 1, it can be seen that the components of the fan blade coupling structure 1 are coupled to each other according to an embodiment of the present invention.

According to an embodiment of the present invention, the fan blade coupling structure 1 is composed of a hub 10, a rotating plate 20, a wing 30, and a spring 40.

 As shown in FIG. 1, a bearing 22 formed on the rotating plate 20 is coupled to a shaft 12 formed at the center of the hub 10, and a hook 18 is formed between the hub 10 and the rotating plate 20. It is connected to the spring (40) through.

 The coupling is made so that the expansion and contraction 12 of the spring 40 connecting the hub 10 and the rotating plate 20 is made, and the wings 30 are coupled to the socket 16 of the hub 10 have.

Moreover, the projection 32 formed in the jack 31 of the blade | wing 30 is couple | bonded with the interlocking tool 26 formed in the outer peripheral surface of the rotating plate 20. As shown in FIG.

As shown in Figure 1, it can be seen that these components are combined to form a fan blade coupling structure 1 according to an embodiment of the present invention.

2 is a view showing a bottom view of the hub 10 used in the fan blade coupling structure 1 according to an embodiment of the present invention.

Referring to FIG. 2, the hub 10 has a cylindrical shaft 12 formed at the center thereof, and an inner side of the shaft 12 has an electric motor shaft coupling part 15 coupled with a shaft of an electric motor to transmit rotation. A bracing wall 13, which is formed, is formed radially or circularly around the shaft 12 formed in the hub to prevent breakage.

It can be seen that a plurality of sockets 16 are formed on the outer circumferential surface of the hub 10. It can be seen that a hook 18 for hanging the spring 40 is formed inside the socket 16.

According to one embodiment of the present invention, by using the hub 10 formed integrally as shown in Figure 2 it is possible to reduce the time administered for assembly in the fan manufacturing process.

In this way, the fine parts were removed and the hub 10 formed of one part was made possible by plastic injection or molding.

When manufacturing the injection product or the molded product as described above, the hook 18, the shaft 12, the socket 16, etc., which are formed to protrude, is often used when the work or the rotation of the wing 30 or the spring 40 is combined. It would also be desirable to use reinforced plastic to prevent breakage under force.

According to one embodiment of the present invention, the hub 10 is integrally formed with a structure for coupling the wing 30 and the structure for coupling the spring 40 and the structure for coupling the rotating plate 20. This structure reduces the failure rate and the complexity of the work compared to the conventional products by replacing the fine parts are assembled individually.

3 is a view showing a cross-sectional view of the hub 10 used in the fan blade coupling structure 1 according to an embodiment of the present invention.

Referring to FIG. 3, it is preferable that the upper side of the hub 10 forms a smooth curved surface to smooth the flow of inflowing air.

In addition, as shown in FIG. 3, the outer circumferential surface of the hub 10 is bent inward.

First, the upper side is curved, which is a shape to allow the flowing fluid to flow smoothly, thereby forming to reduce the occurrence of turbulence.

The socket 16 formed on the outer circumferential surface is bent inward, which increases the sealing property when the wings 30 are closed more and more, and serves to allow the interior to be safe from infestation of pests or foreign substances.

Ventilator wing 30 according to an embodiment of the present invention is the center of gravity of the wing 30 is directed to one side by the jack 31 coupled to the socket 16 by the weight of the wing 30 itself And the fan blade 30 is naturally closed by the restoring force of the spring (40).

4 is a view showing a perspective view of the rotating plate 20 used in the fan blade coupling structure 1 according to an embodiment of the present invention.

Referring to FIG. 4, a bearing 22 is formed in the center, a plurality of support walls 23 are formed radially around the bearing 22, and a plurality of linkages 26 are illustrated on the outer circumferential surface thereof. It is.

The bearing 22 formed on the rotating plate 20 is formed in a hollow cylindrical shape so as to be fitted to the shaft 12 formed at the center of the hub 10. When the bearing 22 is coupled to the shaft 12 of the hub 10, the hub 10 and the rotating plate 20 have a sliding coupling relationship, and the rotating plate 20 and the hub 10 are coupled to each other. Sliding takes place.

In the bearing 22 formed in the said rotating plate 20, as shown in FIG. 3, it is preferable to provide the brace wall in the circumference | surroundings in order to prevent a crack or damage by the pressure by rotation.

Referring to FIG. 4, on the outer circumferential surface of the rotating plate 20, a linkage 26 into which the protrusion 32 formed in the jack 31 formed on the blade 30 is introduced is formed.

When the projection 32 formed in the jack 31 of the wing 30 is introduced into the interlocking tool 26 and the rotating plate 20 is rotated, the wing through the interlocking tool 26. Power is transmitted to the protrusion 32 formed in the jack 31 of the 30, the power transmitted in this way to rotate the wing 30 by a predetermined angle through the socket 16, the wing 30 accordingly ) Is open.

   That is, the rotating plate 20 transmits a rotational force to the wing 30, at which time the spring 40 is extended and the wing 30 is opened. Later, when the power of the fan is stopped, the fan blade 30 is returned to its original position by the restoring force of the spring 40, and the fan is closed again.

Once the shaft 12 of the electric motor rotates, power is transmitted to the hub 10 so that the hub 10 tries to rotate. At this time, the rotating plate 20 coupled to the shaft 12 and the linkage 26 of the rotating plate are rotated. Wings 30 are opened as the spring 40 is extended by inertia by the weight of the blades 30 connected through the retracted protrusion 32, and the blade 30 is maximum when the electric motor rotates at the highest speed. The rotation is made while opening the vent is made.

And when the motor stops, the wings 30 are closed by the restoring force of the spring 40. This structure is opened only during the ventilation through the electric motor and closed when the motor is stopped. Do not allow to enter.

Between the bearing 22 and the outer circumferential surface of the rotating plate 20 is shown a hook 28 for hanging the spring 40, the hook 28 is formed on the hub 10 through the hook 28 ) To hang the spring (40).

Rotating plate 20 shown in Figure 4 has a very simple structure just to be inserted directly into the shaft 12 formed in the hub 10, the sliding coupling in the shaft 12 of the hub 10 After the rotation of the electric motor to perform the ventilation operation has a structure for sliding rotation, the spring 10 is connected between the hub 10 and the rotating plate 20 so that the opening of the fan can be made only at a certain level. Adjusted.

According to one embodiment of the present invention, a coil-type spring 40 having a ring to be hooked on both sides is preferable.

5 is a view showing a wing 30 used in the fan blade coupling structure 1 according to an embodiment of the present invention.

Referring to FIG. 5, one side of the wing 30 is illustrated with a jack 31 having protrusions 32 formed thereon.

In the fan blade coupling structure 1 according to an embodiment of the present invention, it is preferable to use an air foil type wing 30 to increase the air volume and reduce the noise.

The airfoil vent blade 30 induces a flow rate higher and lower in the upper and lower portions of the wing 30 as compared with the vent blade 30 formed in a single thickness to allow the fluid to flow at a higher speed.

In addition, by using the wing 30 formed in the air foil thickness method can reduce the noise caused by friction with air or wind. This allows the noise is naturally absorbed by the fan blade coupling structure 1 of the present invention from the wing 30 and can reduce the noise caused by the collision with the air in the fan blade 30 of a single thickness.

The present invention configured as described above, the shaft 12 is formed in the center, the motor shaft coupling portion 15 is formed on the inside of the shaft, a plurality of sockets 16 are formed on the inner peripheral surface, A hub 10 having a plurality of hooks 18 formed inside the socket;

A rotating plate formed with a bearing 22 coupled to the shaft, a plurality of linkages 26 formed on an outer circumferential surface thereof, and a plurality of hooks 28 formed on the inner side of the linkage 26;

A spring 40 connecting the hooks 18 and 28 formed on the hub and the rotating plate; And

 A wing 30 having a protrusion 32 drawn into the linkage 26 of the rotating plate and having a jack 31 coupled to the socket;

Characterized in that comprises a.

According to one embodiment of the present invention configured as described above, by reducing the cost of the parts are simple to manufacture the parts, and also by simplifying the parts of them will be able to significantly reduce the time to assembly and disassembly, thereby Those skilled in the art will be greatly advantageous in reducing the production cost. If according to an embodiment of the present invention

It combines the hub and the turntable, connects it with a spring and fits the vanes into the socket, making it easy to configure the fan.

In addition, it is possible to reduce the cost of preparing the components as described above, as well as to reduce the weight of the fan, which can be replaced by a smaller electric motor with a larger cost burden to manufacture a fan, The drive of the motor will be able to consume relatively less power. By doing so, the manufacturer can save costs and reduce the economic burden on the consumer.

In addition, since it is possible to ventilate a larger flow rate more quickly by using a multi-sided air foil fan blade according to an embodiment of the present invention, by simplifying the components as described above it is possible to miniaturize the ventilator and such a miniaturization By using a fan, it is possible to provide a fan that can produce a great effect even at low power.

In addition, one embodiment of the present invention will reduce the failure rate by reducing the number of parts are combined to reduce the number of parts, it will be able to significantly reduce the cost of maintenance and replacement of the fan.

Claims (2)

In the fan blade coupling structure, A hub having a shaft formed at the center thereof so as to be rotated by a coupling body, and an electric motor shaft coupling part having a driving force transmitted therein, and a plurality of sockets and hooks formed at an inner circumferential surface of the shaft; A bearing coupled to the shaft, the outer circumferential surface of which a plurality of linkages are formed, and a rotating plate having a plurality of hooks formed inside the linkage; A spring connecting the hook formed on the hub and the rotating plate; And  A wing having a protrusion formed in the linkage of the rotating plate and having a jack coupled to the socket; Ventilator wing coupling structure comprising a. The fan blade coupling structure of claim 1, wherein the outer surface of the hub is inclined to improve airtightness between the blade and the hub.

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