KR20070111824A - Drum type washing machine - Google Patents

Abstract

A drum type washing machine is provided to reduce fabrication cost by simplifying the structure and to improve washing effect by inclining a detergent discharge unit for increasing flow rate when supplying a dissolved detergent into a washing tub. A drum type washing machine comprises a body, and a door. The body has an opening and a washing tub. The door opens and closes the opening of the body. The door has a detergent receiving unit(51), a detergent supply unit having a detergent discharge unit(53). The detergent receiving unit receives the detergent. The detergent discharge unit is inclined to increase flow rate when dissolved detergent is discharged to the washing tub.

Description

Drum Washing Machine {DRUM TYPE WASHING MACHINE}

1 is a cross-sectional view showing the configuration of a drum washing machine according to the present invention.

2 is a perspective view showing a detergent supply device provided in the door shown in FIG.

3 is an exploded perspective view of the detergent supply device shown in FIG.

Figure 4 (a) is a cross-sectional view showing a state in which detergent is injected into the detergent supply apparatus according to the present invention.

Figure 4 (b) is a cross-sectional view showing the water supply and drainage process in the detergent supply device according to the present invention.

     Explanation of symbols on the main parts of the drawings

                10 ... Main Unit 20 ... Door

                21a ... front window 21b ... rear window

                30 ... washing tank 40 ... diaphragm

                50 ... detergent supply unit 51 ... detergent compartment

                51a ... the slit 52 ... the foreign matter filter net

                53 ... detergent dispenser 54 ... detergent filter net

      The present invention relates to a drum washing machine, and more particularly, to a detergent supply device for supplying a detergent dissolved in the washing tank.

     In general, a washing machine is a device for supplying washing water and detergent together inside a washing tank into which laundry is put, and rotating the washing tank by a motor to wash the laundry. One side of the main body of the washing machine together with the washing water in which detergent is supplied. Detergent supply device is provided to be supplied to the inside.

     Korean Laid-Open Patent Publication No. 2003-9847 (published Feb. 5, 2003) discloses a drum washing machine having a detergent supply device for dissolving and adding detergent in a process of supplying wash water.

     The detergent supply apparatus of the drum washing machine includes a box-shaped housing having an opening opening at a front surface thereof, and a detergent container detachably coupled to the inside of the housing through the open front surface of the housing. And the detergent supply device is installed on the upper front portion of the main body to detach the detergent container from the outside of the main body like a drawer.

     In addition, the water supply device for supplying the wash water to the detergent supply device is connected to the external water hose and a plurality of water supply valve to control the water supply, a plurality of water supply pipe connecting the water supply valve and the detergent supply device, and the detergent supply device It consists of a connector that guides the coarse wash water into the interior of the wash tub.

     The drum washing machine is to be supplied to the washing tank through the washing water supplied to the washing water supplied to the washing tank is dissolved in the washing water to be supplied to the detergent supply device and then supplied to the washing tank with the washing water.

     However, the detergent supply apparatus of the drum washing machine according to the conventional invention has the following problems.

     First, since the detergent supply device is installed on the upper side of the main body away from the washing tank, a connection pipe must be provided to supply the detergent dissolved in the detergent supply device into the washing tank, and the detergent receiving unit can be detached from the outside of the main body in the form of a drawer. Since the container for accommodating the detergent must be separately provided, the structure of the detergent supply device is complicated and the number of parts increases, making manufacturing difficult and having high manufacturing cost.

     Next, the size of the entire washing machine is inevitably increased by the space occupied by the detergent supplying device, thereby causing a problem of being limited in space for installing the washing machine, and allowing the detergent container to be detachable from the outside of the main body in the form of a drawer. Since the handle must be formed in the front of the deterioration there is a problem in appearance aesthetic quality is degraded.

     Lastly, since the detergent container is stored in the detergent container housing, some washing machine users have a problem of operating the washing machine without putting detergent, and also, whether or not all detergents put into the washing tank are supplied into the washing tank. There is a problem that the user cannot visually check.

     The present invention is to solve such problems, an object of the present invention is to first provide a drum washing machine to simplify the structure of the detergent supply device to facilitate the manufacture and to reduce the manufacturing cost.

Next, to provide a drum washing machine to reduce the size of the washing machine body and improve the aesthetic quality in appearance.

     In addition, it is to provide a drum washing machine that can visually confirm to the user by visually confirming that the detergent is supplied into the washing tank at the time of initial washing water of the washing administration.

Finally, at the same time to completely dissolve the detergent introduced into the detergent supply device, the dissolved detergent is supplied to the inside of the washing tank by increasing the flow rate at the outlet of the detergent supply device to provide a drum washing machine that can improve the washing performance .

     In order to achieve the above object, the present invention provides a drum washing machine including an opening and a main body having a washing tank installed therein, and a door for opening and closing the opening.

The door is provided with a detergent supply device including a detergent accommodating part for accommodating the detergent and an inclined detergent discharge part for dissolving the detergent to increase the discharge flow rate when discharged into the washing tank.

In addition, the detergent supply device is formed on the upper back of the door, the detergent receiving portion is characterized in that the predetermined depth is recessed in the lower direction of the door with the top open to accommodate the detergent.

In addition, the detergent discharge portion is formed directly under the detergent receiving portion, the bottom edge of the rear side of the detergent receiving portion located on the opposite side of the washing tank is formed with a slit hole so that the dissolved detergent flows down to the detergent discharge portion It features.

In addition, the opening portion of the detergent accommodating portion is characterized in that the foreign matter strainer for preventing the foreign matter from flowing into the detergent accommodating portion is rotatably installed by the hinge coupling.

In addition, the inclined detergent discharge portion is characterized in that it has an inclination angle between 3 ° ~ 5 °.

In addition, the detergent supply device is characterized in that formed integrally with the door.

In addition, the door is characterized in that made of a transparent material so that the inside of the main body is transparent.

Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the drum washing machine according to the present invention has a door 20 which is coupled to be opened and closed so that laundry can be put into the front of the washing machine main body 10 forming the exterior, and the door ( The upper side of the 20 is provided with an operation unit (not shown) for operating the operation of the washing machine.

     The inside of the main body 10 is provided with a cylindrical washing tub 30 formed with an opening toward the door 20. The washing tub 30 is provided in a double structure of the fixed tub 31 and the rotating tub 32. Washing water required for washing is stored in the fixing tank 31, the rotating tank 32 is rotatably installed in the interior of the fixing tank 31 to perform the washing.

     A water supply apparatus including a water supply pipe 11 and a water supply control valve 12 for supplying washing water into the fixing tank 31 is installed at an upper portion of the fixing tank 31, and fixed to a lower portion of the fixing tank 31. Drainage system including a drain pipe 13 and a drain pump 14 for draining the wash water fresh in the tank 31 is installed.

     The rotating tub 32 has an opening 32a formed at a position corresponding to the position of the opening 10a of the main body 10 at the front side, and a plurality of through holes 32b formed at the periphery thereof, It is provided with a plurality of lifters (32c) provided on the inner surface so that the rise and fall can be made. The rotating tub 32 is supported by a rotating shaft 15 connected to the center of the rear, the rotating shaft 15 extends through the rear portion of the fixing tank 32 to the rear, the rear of the fixing tank 32 is a rotating shaft ( A drive motor 16 for rotating 15 is installed.

     The driving motor 16 rotates the rotating tub 32 at a low speed to reverse or reverse rotation to perform washing of laundry, and rotates the rotating tub 32 at a high speed to perform dehydration of laundry.

     The opening 31a is formed in the front surface of the fixing tank 31 at the position corresponding to the position of the opening 10a, 32a of the rotating tank 32 and the main body 10, and the opening 31a of the fixing tank 31, Between the openings 10a of the main body 10 is connected to the diaphragm 40 of the corrugated pipe shape having elasticity so as to be stretchable in a cylindrical shape.

     The diaphragm 40 is connected between the opening 31a of the fixing tank 31 and the opening 10a of the main body 10, so that the wash water opens the opening 31a of the fixing tank 31 during the washing stroke or the dehydrating stroke. It prevents from flowing into the main body 10 through the elastic material that is made of a stretchable elastic material to prevent the vibration or vibration generated by the rotation of the rotating tub 32 during washing or dewatering stroke to be transmitted to the main body. do.

     In addition, the connection hole 41 is connected to the outlet 11a of the water supply pipe 11 to supply the washing water to the detergent supply device 50 formed integrally with the door 20 to be described later, on the upper side of the diaphragm 40. Is formed.

     In the door opening and closing the opening of the main body 10, as shown in Figure 2, the user can visually check the inside of the rotating tub 30 through the door 20 from the outside of the main body 10 during the washing stroke. The transparent window 21 formed of a transparent material is disposed at the center thereof, and the transparent window 21 is fixed to the edge portion of the door 20 so that the transparent window 21 may be installed at the center thereof. A door frame 22 is arranged which makes it possible.

     The transparent window 21 has a double structure of a front window 21a installed on the front side of the door 20 and a rear window 21b installed on the rear side of the door 20 so that a hollow part can be formed therebetween. The rear window 21b is formed to protrude in a dome shape from the door frame 21 toward the opening 32a of the rotating tub 32.

     Detergent supply device 50 of the drum washing machine according to the present invention is integrally formed in the door 20, in particular, the detergent dissolved in the detergent supply device 50 directly without using a connecting pipe, etc. directly into the washing tank 30. It is integrally formed on the rear window 21b of the door 20 protruding in a dome shape toward the opening 32a of the rotating tub 32 so that it can be supplied. In addition, it is formed on the upper side of the rear window 21b of the door 20 closer to the outlet 11a of the water supply pipe 11 so that washing water can be easily supplied from the water supply pipe 11 connected to the diaphragm 40. do.

      This allows the user to inject detergent into the detergent supply device 50 provided in the door 20 in a state in which the door 20 is opened to inject laundry into the rotating tub 32 by opening the door 20. This eliminates the problem that the washing machine can be operated without introducing detergent into the detergent supply device, and also the detergent injected into the detergent supply device 50 directly into the washing tank 30 by the washing water supplied from the water supply pipe 11. This is to simplify the structure of the detergent supply device by supplying.

     In addition, the present invention does not need to place a separate space for installing the detergent supply device inside the main body can reduce the overall size of the drum washing machine, the detergent supply device 50 by opening the door 20 even when the detergent is introduced. ) Just need to add detergent, so it is easy to add detergent.

     The door 20 of the drum washing machine according to the present invention, the front window (21a) and rear window (21b) is usually PMMA (Poly Methyl Meta Acrylate) so that the user can visually check the state that the detergent is put into the washing administration It is produced by injection molding of acrylic resin. In addition, the detergent supply device 50 is integrally formed with the rear window 21b in the process of manufacturing the rear window 21b. PMMA, which is a kind of acrylic resin, is suitable for molding the rear window 21b in which the detergent supply device 50 is formed because of excellent transparency, easy molding of the product through injection, and high heat resistance.

    In addition, the detergent supply device 50 according to the present invention, as shown in Figures 2 and 3, the detergent receiving unit 51 and the detergent receiving when the laundry is put into the rotating tank 32, the detergent is accommodated Foreign matter trapping net 52 to prevent foreign substances from flowing into the unit 51, detergent discharging unit 53 for guiding the detergent dissolved in the detergent accommodating unit 51 into the washing tank 30, and not dissolved It comprises a detergent strainer 54 for filtering the detergent discharged to the outlet (53a) of the detergent discharge portion (53).

     The detergent accommodating part 51 is a shape of a rectangular parallelepiped recessed a predetermined depth in the downward direction of the door 20 in an open state to accommodate a detergent. On the front or rear side of the detergent accommodating portion 51, a detergent supply line 51b is displayed on which a scale for checking the amount of detergent to be put into the user is displayed. In addition, a slit hole 51a cut in the transverse direction is formed at one side edge of the bottom surface of the detergent accommodating part 51, and the detergent accommodating part 51 and the detergent discharging part 53 are formed by the slit hole 51a. ) Are communicated with each other, and when the wash water is supplied to the detergent accommodating part 51, the dissolved detergent flows down to the detergent discharge part 53 through the slit hole 51a.

     The slit hole 51a is located far from the washing tank 30 to improve the detergent dissolving power by increasing the discharge time of the washing water supplied to the detergent accommodating part 51 to have a sufficient time for the detergent to be dissolved (the washing tank 30). Formed on the bottom edge of the rear side of the detergent accommodating part 51 (located on the opposite side of the detergent accommodating part), and the cut width of the slit hole 51a is a detergent that is not dissolved before washing water is supplied to the detergent accommodating part 51. In order to prevent leakage to the discharge portion 53, but is formed small, if the width is formed too small, the dissolved detergent can not flow down to the detergent discharge portion 53, the width is determined in consideration of this.

     In addition, foreign matters such as coins, buttons, and pins included in the laundry are introduced into the detergent container 51 at the upper opening of the detergent container 51, and the slit hole 51a is introduced into the laundry tank 30. In order to prevent clogging), a mesh-like foreign matter filtering network 52 serving as a filter is installed.

     The foreign matter strainer is rotatably coupled so that the hinge shaft 52a can open and close the upper opening by a hinge coupling inserted into the hinge groove 52b, and when the detergent is injected, the foreign matter strainer 52 rotates upward. Detergent is introduced into the detergent accommodating unit 51 in an open state, and when laundry is introduced, laundry is introduced into the washing tank 30 while the upper opening is closed by the foreign matter strainer 52.

     In addition, an inflow hole 52c slightly larger than the outlet of the water supply pipe 11 is formed in the center of the foreign matter trapping network 52 at a position corresponding to the water supply pipe 11 connected to the diaphragm 40, and the inflow hole 52c is formed. At the same time as the wash water inlet hole through which the wash water supplied from the outlet 11c of the water supply pipe 11 passes, and also serves as a handle that the user's finger enters to more easily rotate upwards of the foreign matter trapping network 52. Do it.

     The dissolved detergent is disposed directly under the detergent accommodating part 51, that is, in the lower part of the detergent accommodating part 51 partitioned from the detergent accommodating part 51 by the bottom surface of the detergent accommodating part 51. The detergent discharge part 53 for guiding the inside is formed, and the slit hole 51a cut at the bottom rear edge of the detergent receiving part 51 forms the outlet of the detergent receiving part 51 and at the same time. The inlet of the detergent discharge part 53 is formed, and the detergent accommodating part 51 and the detergent discharge part 53 communicate with each other. In addition, at the rear of the door rear window 21b facing the washing tub 30, an outlet 53a through which the dissolved detergent is discharged from the detergent discharge part 53 is formed.

      The detergent discharge part 53 increases the discharge flow rate of the dissolved detergent at the time of supplying the washing water, so that the detergent discharge part 53 may supply the detergent to the entire laundry introduced into the rotary tub 32 from the rear surface (entrance part) of the detergent discharge part 53. The bottom surface to the front surface (outlet part) is inclined so that it may have a predetermined angle of inclination (theta) with a horizontal surface.

     The inclination angle θ may be formed to have any inclination angle between 0 ° and 90 °, but has an inclination angle of about 3 ° to 5 ° in consideration of the discharge velocity of the dissolved detergent and the time at which the detergent is dissolved. It is preferable.

     In addition, the outlet 53a of the detergent discharge part 53 is provided with a mesh-type detergent strainer 54 for filtering detergents that are not completely dissolved. Detergent strainer (54) is a strainer that passes only the detergent that is sufficiently dissolved by filtering the detergent that is not completely dissolved, it should be a small net, but if the hole is too small, the detergent-dissolved wash water can easily flow down It must be manufactured considering this.

    Next will be described in detail with reference to Figure 4 with respect to the operation and effect by the detergent supply apparatus of the drum washing machine according to the present invention configured as described above.

     Figure 4a is a cross-sectional view showing a state in which detergent is injected into the detergent supply device. As shown in the figure, after rotating the door upward by putting a finger in the washing water inlet hole (52c) formed in the center side of the foreign matter trapping net 52 in the state in which the door 20 is opened to inject laundry into the washing tank. The detergent is introduced in accordance with the detergent supply line 51b displayed on the detergent accommodating part 51. After the detergent is added to the detergent accommodating part 51, the foreign matter filter net 52 is rotated downward, and the laundry is introduced into the washing tank 30 while the opening of the detergent accommodating part 51 is closed. After that, the door 20 is closed.

     At this time, even if some detergent leaked to the detergent discharge part 53 through the slit hole 51a among the detergents injected into the detergent accommodating part 51 flows down to the exit side of the detergent discharge part 53 by the inclined part, the detergent catching net Filtered by 54 prevents the undissolved detergent from being supplied to the washing tub 30.

    Figure 4 (b) is a cross-sectional view showing a state in which the wash water is supplied to the detergent supply device is dissolved detergent is discharged. As shown, when the water supply button of the control unit provided on the front of the main body for the washing operation in the state in which the door 20 is closed, a water supply valve (not shown) controlled by a controller (not shown) is opened to supply a water supply pipe 11. Washing water is supplied to the washing water supplied through the washing water inlet hole (52c) of the foreign matter strainer (52) at the position corresponding to the outlet (11a) of the water supply pipe (11) connected to the diaphragm (40) The detergent added to the unit 51 is dissolved. The dissolved detergent drops to the detergent discharge part 53 through the slit hole 51a. At this time, the dissolved detergent falling into the detergent discharge portion 53 formed directly below the detergent accommodating portion 51 through the slit hole (51a) is further improved by the drop impact.

    The dissolved detergent dropped to the detergent discharge part 53 is also increased through the inclined portion of the inclined detergent discharge part 53, the discharge flow rate is increased, so the horizontal distance falling to the washing tank 30 is also increased. Therefore, since the dissolved detergent is supplied to the rear side of the washing tank 30 (see FIG. 1), that is, evenly supplied to the entire laundry put into the washing tank 30, the washing force is improved.

     As described in detail above, the drum washing machine according to the present invention first, by forming the detergent supply unit integrally to the door, there is no need for a conventional drawer-type detergent container or connecting tube, the structure of the detergent supply apparatus than conventional Is simplified to facilitate the manufacture and reduce the manufacturing cost.

     Next, the space occupied by the detergent supply device in the washing machine body is reduced, so that the space is efficiently used, and the size of the washing machine body can be reduced, thereby reducing the space constraint of the washing machine. By being installed inside, there is an effect of improving the aesthetic quality in appearance.

     In addition, since the detergent supply device is integrally provided in the transparent window of the door, the user can visually check the state in which the detergent is introduced in the water supply process, thereby providing visual satisfaction to the user.

    Finally, a separate part is needed to discharge the detergent because the detergent and the wash water are discharged by the natural drainage phenomenon by simply supplying the washing water without providing a separate discharge means to discharge the dissolved detergent into the washing tank. There is no effect of reducing the number of parts. In addition, by placing the inclined detergent discharging unit in the detergent supply device, not only can the detergent-dissolved washing water flow smoothly, but also the detergent is supplied to the entire inside of the washing tank due to the increased discharge flow rate, thereby improving the washing power of the laundry. There is.

Claims (9)

In the drum washing machine having an opening and a main body having a washing tank installed therein, and a door for opening and closing the opening, And a detergent supply device including a detergent accommodating part accommodating detergent and an inclined detergent discharge part for increasing the discharge flow rate when discharging the detergent into the washing tank. The method of claim 1, wherein the detergent supply device is formed on the upper back of the door, the detergent receiving portion is characterized in that the predetermined depth in the downward direction of the door with the top open to accommodate the detergent Drum Washing Machine. According to claim 2, wherein the detergent discharge portion is formed directly below the detergent receiving portion, the bottom surface edge of the rear side of the detergent receiving portion located on the opposite side of the washing tank so that the dissolved detergent flows down to the detergent discharge portion Drum washing machine characterized in that the slit hole is formed. The drum washing machine according to claim 3, wherein a foreign matter filter net is installed at the opening of the detergent accommodating part to prevent foreign substances from entering the detergent accommodating part. The drum washing machine according to claim 4, wherein the foreign material filtering net is rotatably installed by a hinge coupling. The drum washing machine according to claim 1 or 4, wherein at the outlet of the detergent discharging unit, a detergent strainer is provided to filter only undissolved detergent and to pass only a sufficiently dissolved detergent. The drum washing machine according to claim 1, wherein the inclined detergent discharge part has an inclination angle between 3 ° and 5 °. The washing machine according to claim 1, wherein the detergent supply device is integrally formed with the door. The drum washing machine according to claim 1, wherein the door is made of a transparent material so that the inside of the main body is transparent.

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