KR100577246B1 - Heater in drying machine - Google Patents

Abstract

The present invention relates to a drying apparatus, and more particularly, to a heater of a drying apparatus having a good drying efficiency without fear of mold or bacteria propagating due to residual humidity of a drum.

To this end, the present invention is a drum for receiving a drying object; A heater wire wound around the outer circumference of the drum; A rim of a conductive material installed around both ends of the drum and connected to both ends of the heater wire; And, it provides a heater of the drying apparatus comprising a connection portion: sliding contact with the rim is always in contact with the rim to supply power irrespective of the movement of the drum.

Drying device, drum, washing machine, heater, drying, mold

Description

Heater in drying machine

1 is a cross-sectional view schematically showing the configuration of a washing machine having a conventional drying function.

Figure 2 is a perspective view showing the configuration of a heater of the drying apparatus of the present invention.

3 is a cross-sectional view showing a connection portion of the heater of the drying apparatus of the present invention.

* Description of Signs of Major Parts of Drawings *

120: drum 130: metal rim

140: heater wire 150: connection portion

152: fixing portion 154: connecting portion

156: spring

The present invention relates to a drying apparatus, and more particularly to a heater for drying the drying object.

In general, the drying apparatus is a device for drying the laundry, such as washing is completed using a hot air lamp. Such a drying apparatus includes a drum accommodating a drying object therein, an air circulation duct that is a flow path through which air is circulated in the drum, a heater that heats air in the air circulation duct, and circulates air in the air circulation duct. It consists of a blowing fan.

In addition, such a drying apparatus may be applied to a dryer having only a drying function, and in recent years, a trend has been applied to a drum washing machine.

In general, the drum washing machine is a device for washing laundry by rotating the drum by the driving force of the motor in a state in which detergent, washing water and laundry are put into the drum. The drum washing machine is less damage to the laundry and the laundry is not tangled well, knocking and rubbing has the advantage of producing a laundry effect.

In addition, the drying apparatus is provided therein to dry the laundry in which the washing is completed in the drum.

Hereinafter, with reference to the accompanying Figure 1 with respect to the conventional drum washing machine will be described in detail.

1 is a configuration diagram showing the configuration of a conventional drum washing machine.

Referring to FIG. 1, the drum washing machine includes a cabinet 1 having a laundry inlet formed on a front surface thereof, a door 2 installed to be opened and closed at a laundry inlet of the cabinet 1, and storing wash water in the cabinet. Tub 10 is installed so as to, the drum 20 is rotatably installed in the tub 10, and the motor device 30 is installed in the tub 10 to transfer the driving force to the drum 20 It is configured to include.

The drying duct 40 is installed on the tub 10. In this case, a blowing fan 42 and a drying heater 44 are built in the drying duct 40 to discharge hot air. One end of the drying duct 40 is installed in communication with the inside of the tub 10.

In addition, the tub 10 is provided with a condensation duct 50 to communicate with the drying duct (40). At this time, one end of the condensation duct 50 is in communication with the rear lower side of the tub 10, the other end of the condensation duct 50 is connected to the drying duct (40). The condensation duct 50 is provided with a water supply 52 for supplying cooling water to condense moisture in the air.

Therefore, after the washing operation of the drum washing machine is finished, the drying operation of drying the laundry is started. Hereinafter, the drying operation of the drum washing machine will be described.

When the drying operation of the drum washing machine starts, power is applied to the drying heater 44 of the drying duct 40. At this time, as the blowing fan 42 and the drying heater 44 are operated, the blowing fan 42 blows hot air.

The hot air flows into the drum 20 having the laundry which is washed in the guide of the drying duct 40.

The hot air supplied into the drum 20 is dried at a high temperature, thereby evaporating moisture contained in the laundry. At this time, the drum 20 is rotated at a low speed to stir the laundry, thereby helping to dry the laundry.

The evaporated water is discharged through the condensation duct 50 while being contained in the air. At this time, by spraying water from the water supply 52 of the condensation duct 50, the moisture in the air is condensed and removed. The air thus dried is introduced into the drying duct 40 again.

The laundry is dried while repeatedly performing this series of procedures.

However, such a conventional drum washing machine having a drying function has the following problems.

First, in general, the drum of the drum washing machine has a lot of moisture, so there is a high possibility of bacterial propagation, so the drum surface is coated with an antimicrobial coating. However, as the use time elapses, the drum is coated with friction or water flow. The surface is damaged and mold or bacteria grow on the surface of the drum due to moisture remaining on the surface of the drum after washing or drying.

Second, since the laundry dryer heater is installed inside the drying duct to heat the air flowing through the drying duct, and the heated air heats the laundry by convective heat transfer with the laundry inside the drum, the heat of the drying air is the laundry. It is not used only for drying the drum or doors because it takes away a lot of heat to heat the problem there is a low drying efficiency.

In order to solve the above problems, the present invention is to provide a heater of a drying device having a good drying efficiency without the risk of mold or bacteria propagation by the residual humidity of the drum.

In order to achieve the above object, the present invention is a drum for receiving a drying object; And, it provides a heater of the drying apparatus comprising: a drum heating means for directly heating the drum to dry the object to be dried in the drum.

In addition, the drum heating means includes a heater wire wound around the outer periphery of the drum; A rim of a conductive material installed around both ends of the drum and connected to both ends of the heater wire; And,

And a connection part slidably contacted with the rim to always contact the rim to supply power regardless of the movement of the drum.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the heater of the drying apparatus of the present invention will be described in detail.

In addition, in the following description of the same components as those of the prior art of the components related to the heater of the drying apparatus of the present invention, reference is made to the conventional technique described above with reference to FIG.

2 is a perspective view showing a heater of the drying apparatus of the present invention.

First, a circular metal rim 130 having a conductive property is provided around both ends of the drum 120 that accommodates laundry. The metal rim 130 is integrally coupled with the drum 120 to rotate together with the rotation of the drum 120.

The heater wire 140 is wound around the outer circumference of the drum 120. In general, a plurality of through holes 122 are formed on a cylindrical surface of the drum 120 applied to the washing machine, and the heater wire 140 is disposed between the through holes 122 formed on the cylindrical surface of the drum 120. It is preferably located and wound in a spiral around the drum 120.

In addition, both ends of the heater wire 140 is connected to the metal rim 130 coupled to both ends of the drum 120, respectively.

In addition, both ends of the drum 120 are provided with a connection unit 150 for supplying power to the heater wire 140.

Since the connection part 150 needs to supply power to the heater wire 140, it is to be electrically connected to the heater wire 140. However, since the drum 120 rotates in a washing process or a drying process, and also flows up and down, the connection part 150 is the heater wire regardless of the rotation of the drum 120 or the up / down flow. Do not lose electrical contact with 140.

Therefore, the connection part according to the embodiment of the heater of the drying apparatus of the present invention is preferably made as shown in FIG.

The connection part 150 according to the embodiment of the heater of the drying apparatus of the present invention includes a fixing part 152 connected to a power supply part (not shown), and a contact part 154 contacting the metal rim 130.

At this time, the contact portion 154 may be elastically rotated up and down with respect to the fixing portion 152, it is preferable that the sliding contact to the metal rim 130.

In addition, in order to add elastic force to the contact portion 154, it is preferable that a spring 156 having one end coupled to the contact portion 154 and the other end connected to the fixing portion 152 is further installed.

Therefore, since the contact portion 154 of the connecting portion 150 is slid with respect to the metal rim, and the elastic portion can be rotated up and down with respect to the fixing portion 152, the drum 120 rotates, or the drum Even if up / down flow occurs in the 120, the contact portion 154 is always in contact with the metal rim 130 so as not to lose electrical contact.

At this time, the fixing portion 152 and the contact portion 154 of the connecting portion 150 may be formed integrally bent, the connecting portion is hinged to the fixing portion 152 and the contact portion 154 is rotatable. It may be.

In addition, the connection portion 150 is made of a conductive material or electricity passing through the passage is of course provided with electricity.

The action of the heater of the drying apparatus of the present invention having such a configuration is as follows.

When the drying operation of the drying apparatus is started, the drum 120 is rotated at a low speed, and power is supplied to the connecting portion 150. At this time, since the contact portion of the connection portion 150 is in sliding contact with the metal rim 130, and the metal rim 130 and the heater wire 140 are electrically connected, the contact portion 150 is supplied to the connection portion 150. Power is supplied to the heater wire 140 through the metal rim 130.

The heater wire 140, through which electricity is supplied, is heated to heat the drum 120.

Therefore, since the drum 120 is heated, the drying object in the drum 120 is also heated to dry.

Of course, the air inside the drum 120 is also preferably circulated through the air circulation ducts 40 and 50 (see FIG. 1) similarly to the conventional embodiments described above.

In addition, the present invention is preferably applied to a dryer, but can be applied to a washing machine having a washing function and a drying function, since the present invention can be applied to a washing machine having a washing function and a drying function without any significant change in its configuration.

As described above, according to the heater of the drying apparatus of the present invention, first, since the heater directly heats the drum, the moisture remaining on the outer surface of the drum is also easy to remove, so that the antibacterial coating on the surface of the drum is lost. Even if it is effective to inhibit the growth of mold and bacteria.

Secondly, since the drum directly receiving the drying object is heated directly there is an effect that can increase the drying efficiency.

Claims (4)

A drum containing a drying object; And, And a drum heating means for directly heating the drum to dry the object to be dried in the drum. The method of claim 1, The drum heating means may include a heater wire wound around an outer circumference of the drum; A rim of a conductive material installed around both ends of the drum and connected to both ends of the heater wire; And, And a connection part slidably contacted with the rim to always contact the rim to supply power regardless of the movement of the drum. The method of claim 2, One end of the connection part is connected to the power supply is fixed so as not to move, the other end is formed so as to have an elasticity moving up and down in accordance with the movement of the drum is in contact with the rim of the heater. The method of claim 3, wherein The heater of the drying apparatus, characterized in that further comprises a spring for imparting an elastic force to the connection portion.

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