JP3902770B2 - Drum equipment for home appliances - Google Patents

Description

[0001]
TECHNICAL FIELD The present invention relates to home appliances, and more particularly to a drum device capable of minimizing noise generated from a drum that is washed or dried in a washing machine or a dryer.
[0002]
Background Art Generally, a dryer is a device that supplies hot air generated by an electric heater or a gas combustion device to a drying object such as clothes put in a drum and performs drying.
In the present invention, a drum device used in a dryer will be described as an example for convenience of explanation. However, the present invention is applicable to any related equipment such as a washing machine using a drum.
FIG. 1 is an exploded perspective view of a main part configuration of a dryer according to the related art.
As shown in FIG. 1, a drum 1 is provided inside a cabinet (not shown) that constitutes the appearance of the dryer.
[0003]
The drum 1 is formed in a cylindrical shape with both ends open, and a belt groove 2 around which a drum belt 4 driven by a motor 3 is wound is formed along an intermediate portion of the outer peripheral surface. A drying chamber 5 in which drying is performed is formed inside the drum 1.
A large number of baffles 6 are formed inside the drying chamber 5 to turn the object to be dried inside the drying chamber 5 when the drum 1 rotates. Such a drum 1 is usually made of a metal material since hot hot air flows through it. An example of the metal material is stainless steel.
In the figure, reference numeral 3 ′ denotes a pulley that transmits the power of the motor 3 to the drum belt 4.
[0004]
A front head 7 and a rear head 9 are provided so as to correspond to the front and rear ends of the drum 1, respectively. Here, the front head 7 and the rear head 9 serve to support the front and rear ends of the drum 1 by closing the open portion of the drum 1 to form a drying chamber 5. At this time, a sealing material 10 is provided between the front head 7 and the drum 1 that rotate relative to each other and between the rear surface 9 and the drum 1 in order to prevent leakage. Of course, a large number of rollers (not shown) for supporting the drum 1 are provided at positions corresponding to the front and rear ends of the drum 1.
[0005]
The front head 7 is formed with a through hole 8 for communicating the inside and the outside of the drying chamber 5. The through hole 8 is selectively opened and closed by a door (not shown).
The rear head 9 is provided with an air supply duct 12, and the air supply duct 12 serves as a passage for supplying air, more precisely hot air, into the drying chamber 5. 5 communicates with the inside.
Also, one of the front heads 7 that hits the lower end of the through hole 8 of the front head 7 is provided with a lint duct 15 where air escapes from the drying chamber 5. Inside the lint duct 15, the air that escapes from the drying chamber 5 is provided. A lint filter is provided which serves to filter foreign matter (for example, dust, yarn removal, etc.) mixed in the.
[0006]
In addition, a blower 17 is connected to the lint duct 15 and the air inside the drying chamber 5 is discharged through the lint duct 15.
The blower 17 is disposed inside the blower housing 18. One of the blower housings 18 communicates with the lint duct 15 and the other is connected with an exhaust pipe 19. Therefore, the air that has escaped from the drying chamber 5 and passed through the lint duct 15 is discharged through the exhaust pipe 19 by the force of the blower 17.
[0007]
A hot air duct 20 is provided so as to be connected to the air supply duct 12.
The hot air duct 20 serves to supply hot air having a drying action from the inside of the drying chamber 5. For this purpose, the hot air duct 20 is provided with a configuration for generating thermal energy for heating the air.
That is, a mixing tube 24 is provided at the inlet of the hot air duct 20. The mixing tube 24 serves to mix the gas injected from the gas nozzle 22 and the primary air.
[0008]
The gas nozzle 22 is provided on one side of the valve 30 for controlling the supply of gas. Reference numeral 23 denotes a gas supply pipe 23 connected to the valve 30.
The gas nozzle 22 provided on one side of the valve 30 is provided to face the inlet of the mixing tube 24.
As a result, the gas injected from the gas nozzle 22 and the external air flowing through the inlet of the mixing tube 24, that is, the primary air are mixed inside the mixing tube 24.
An ignition plug 26 for ignition is provided on the outlet side of the mixing tube 24.
It will be described that the dryer according to the related art having such a configuration works.
[0009]
The laundry to be dried is put into a drying chamber 5 formed inside the drum 1, the door is closed, and then the operation button is pressed, whereby the drum belt 4 wound around the belt groove 2 is moved by the motor 3. The drum 1 rotates while being driven.
In addition, the air inside the drying chamber 5 is discharged through the lint duct 15 while the blower 17 is operating.
In this case, outside air flows into the drying chamber 5 through the air supply duct 12.
Here, the air supplied to the air supply duct 12 has a relatively high temperature due to the heat supplied from the gas burned while passing through the hot air duct 20.
[0010]
The hot air is transmitted to the inside of the drying chamber 5 formed inside the drum 1 through the air supply duct 12. Inside the drying chamber 5, the hot air absorbs moisture contained in the laundry and then exits the drying chamber 5.
At this time, the reason why air escapes from the drying chamber 5 is due to the suction input of the blower 17.
Air passing through the drying chamber passes through a lint filter provided inside the lint duct 15 to filter out foreign matters such as dust and yarn.
However, the related technology having the above configuration has the following problems.
[0011]
The laundry is rotated by the rotation of the drum 1 inside the drum 1 formed of a metal material such as stainless steel. However, the laundry is repeatedly pulled by the baffle 6 and dropped.
At this time, the laundry has accessories such as buttons, zippers, and clips. When the laundry falls inside the drum 1, the accessory collides with the surface of the metal drum 1 and makes noise. There is a problem that occurs.
Also, metallic foreign matters such as coins fall when the drum rotates and collide with the surface of the drum to generate such noise. In this case, the drum plays a role of further sounding and amplifies the noise. There was a bug.
[0012]
DETAILED DESCRIPTION OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide accessories or metallic foreign matters attached to the laundry or the like while the drum of the home appliance is rotating. It is to be able to effectively cut off the vibration sound generated by the collision.
[0013]
According to a feature of the present invention for achieving the above object, a drum that rotates with a chamber in which work is performed, an object that is provided on the drum and flows inside the chamber by the rotation of the drum, and a drum, It is characterized by including a vibration isolating sound insulating member that blocks vibration sound generated by the collision.
The vibration isolating sound insulation member is provided along the outer peripheral surface of the drum.
The outer peripheral surface of the drum is provided with a seating groove that is recessed to form a vibration isolation sound insulating member along the circumferential direction.
A large number of the vibration isolating sound insulation members are provided on the outer surface of the drum in the longitudinal direction of the drum.
[0014]
On the outer peripheral surface of the drum, a plurality of seating grooves are provided along the longitudinal direction of the drum in order to install a vibration isolating sound insulation member.
It is desirable that the vibration isolating sound insulating member is made of an elastic material and is attached to the outer surface of the drum to form a sheet shape.
In addition, the said vibration-insulating sound insulation member can add a sound-absorbing material layer like a polyester sheet to a butyl rubber layer.
According to the drum device of the home appliance according to the present invention having such a configuration, the reliability of the product is ensured by blocking the vibration noise caused by the collision between the accessory of the laundry and the drum due to the rotation of the drum, thereby ensuring the quietness of the home appliance. It is possible to improve the performance.
[0015]
Best Mode for Carrying Out the Invention The present inventors have intensively studied to solve the above-mentioned problems, and as a result, have come to complete the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 2, the drum 30 has a cylindrical shape, and a chamber 31 is formed therein. When the drum 30 of the present embodiment is used in a dryer or a drum washing machine, laundry is put into the chamber 31 for drying and washing.
[0016]
A seating groove 32 is formed on the outer peripheral surface of the drum 30. A drum belt 34 for driving the drum 30 is wound around one side of the seating groove 32.
In this embodiment, the seating groove 32 formed on the outer peripheral surface of the drum is annular along the circumferential direction. However, the seating groove 32 forms a spiral along the outer peripheral surface of the drum 30. You can also.
[0017]
A vibration isolating member for isolating vibration noise caused by a collision generated from the inside of the metal drum 30 is disposed in the seating groove 32. Here, the vibration isolating sound insulating member plays a role of effectively blocking vibration sound generated when the metallic drum 30 collides with a hard object.
[0018]
As such a vibration isolating sound insulating member, it is desirable to use a material having elasticity, and examples thereof include rubber and leather, etc., which are particularly excellent in workability and can be easily combined with other materials. Moreover, it is optimal to use butyl rubber 40 that is excellent in heat resistance and flame retardancy and has an effect of reducing strong vibration noise. The butyl rubber 40 is provided on the outer peripheral surface of the drum 30 along the seating groove 32. For this purpose, an adhesive is applied to one side of the butyl rubber 40.
Here, the vibration isolating sound insulating member may be composed of a composite layer in which a sound absorbing material layer such as a polyester sheet is added to the butyl rubber 40 layer.
[0019]
It is desirable that the butyl rubber 40 adheres to a location where there is a lot of collision with the laundry deposits. The attachment position of the butyl rubber 40 can be found through experiments, but is close to the middle portion of the drum 30.
The butyl rubber 40 has a thickness corresponding to the depth of the seating groove 32 so that the butyl rubber 40 does not protrude from the outer surface of the drum 30. Accordingly, the butyl rubber 40 does not protrude from the outer surface of the drum 30 and does not affect the rotation of the drum 30.
[0020]
In the embodiment of FIG. 2, it is shown that the butyl rubber 40 is wound around a double line. However, the butyl rubber 40 can be installed by changing not only the double line but also the line according to the design conditions.
Next, FIG. 3 shows another embodiment of the present invention. According to the figure, a chamber 131 is provided inside a cylindrical drum 130. Laundry is put into the chamber 131 for washing or drying.
[0021]
A drum belt 134 for transmitting power for rotating the drum 130 is wound around the outer surface of the drum 130. The drum belt 134 is wound around a belt seating groove 132 formed along the outer peripheral surface of the drum 130.
In addition, a large number of butyl rubbers 140 as vibration isolating and sound insulating members are attached to the outer surface of the drum 130. In this embodiment, a number of butyl rubbers 140 are attached in the longitudinal direction of the drum 130 so as to be arranged on both sides around the belt seating groove 132. At this time, a seating groove 232 may be formed on the outer surface of the drum 130 to adhere the butyl rubber 140.
[0022]
Hereinafter, the operation of the drum device of the home appliance according to the present invention having the above-described configuration will be described.
The present invention is configured by adhering the butyl rubber 40 as a vibration-isolating and sound-insulating member to the outer surface of the drum 30. By doing so, vibration noise generated when the drum 30 rotates can be blocked.
That is, when the drum 30 rotates while the laundry is put into the chamber 31 in the dryer or the drum washing machine, the process of the laundry moving up and down on the upper portion of the chamber 31 is repeated.
[0023]
From such a process, a hard accessory such as a metal or plastic such as a button, a zipper, or a clip attached to the laundry collides with the inner surface of the drum 30. At this time, the drum 30 is made of a metal material such as stainless steel, and the inside thereof is vacant to generate a vibration sound at the time of collision of the accessory.
[0024]
However, the vibration noise is effectively cut off by the butyl rubber 40 of the vibration isolating sound insulating member attached to the outer surface of the drum 30.
The butyl rubber 40 is particularly advantageous because it is a flame retardant material when employed in a dryer or the like that may cause a fire.
Although a preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made based on the technical idea of the present invention.
[0025]
INDUSTRIAL APPLICABILITY The drum device for home appliances according to the present invention is a drum 30 for blocking vibration noise generated by collision of accessories such as buttons due to falling of laundry and the inner surface of the drum when the drum rotates. A vibration-isolating sound insulation member is provided on the outer surface.
Accordingly, the present invention can further improve the reliability of the product by improving the quietness of the drum washing machine and the home appliance.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a main configuration of a dryer according to related art.
FIG. 2 is a perspective view showing a configuration of a preferred embodiment of a drum device for home appliance according to the present invention.
FIG. 3 is a perspective view showing the configuration of another embodiment of the present invention.

Claims (8)

A drum that rotates with a chamber in which work is performed , and a vibration-isolating sound insulation that blocks vibration noise generated by the collision between the drum that is provided in the drum and flows inside the chamber due to rotation of the drum a member only contains,
A seating groove recessed in the circumferential direction along the outer peripheral surface of the drum is provided, and
The drum device for home appliances, wherein the vibration isolating sound insulating member is installed in the seating groove along an outer peripheral surface of the drum. The drum of the household electrical appliance according to claim 1, wherein a plurality of the seating grooves are formed on an outer peripheral surface of the drum, and a plurality of the corresponding vibration-isolating sound insulating members are installed in the seating grooves. apparatus. A rotating drum with a chamber in which work is performed, and
A vibration isolating member that is provided on the drum and blocks vibration noise generated by the collision between the drum and an object that flows inside the chamber by the rotation of the drum;
A plurality of seating grooves recessed in the long axis direction along the outer peripheral surface of the drum; and
The drum device for home appliances, wherein the vibration isolating sound insulating member is installed in each seating groove along an outer peripheral surface of the drum. The drum device for home appliances according to any one of claims 1 to 3, wherein the vibration-isolating sound insulation member is made of an elastic material. The vibration Fusei sound insulating member drum Appliances drum apparatus according attached to the outer peripheral surface of claim 1 Ru Tei to any one of the third. The vibration Fusei sound insulating member Appliances drum apparatus according to claim 4 in the form of a sheet. The drum device for home appliances according to any one of claims 1 to 3, wherein the vibration-isolating and sound-insulating member is made of butyl rubber. The drum device for home appliances according to any one of claims 1 to 3, wherein the vibration-isolating sound insulating member includes a composite layer of a butyl rubber layer and a polyester layer.

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