KR200495357Y1 - Dishwasher dispenser - Google Patents

Abstract

The present invention discloses a detergent dispenser for a household dishwasher. (Fig. 1, Fig. 2) The dispenser for a dishwasher according to an embodiment of the present invention is composed of a detergent dispensing unit and a rinse aid dispensing unit (Fig. 10, Fig. 11). Dispenser body 30 having chambers 30-1 and 30-5 for receiving and dispensing detergent and rinse, sliding guide parts 30-2 and 30-3 of the body 30 The chamber cover 31 slide device for opening and closing the detergent inside the detergent chamber while sliding and reciprocating in the 30) as a dispenser equipped with a rinse tank cover 46 and a rinse distribution drive window so that a rinse storage space can be provided at the lower part of the chamber cover 31 of the detergent distribution unit. The chamber cover slide 31 and the sliding guide of the body are sealed and opened to seal and open the detergent chamber, and the chamber cover slide 31 and the body slide guide so that compression sliding friction is achieved between the lower surface of the chamber cover slide 31 and the upper surface 30-4 of the chamber edge of the body 30 A plate spring 32 is mounted between (30-2, 30-3), and both sides of the side edge portion ( It is a dishwasher dispenser equipped with rolling bearings (33) in 4 places).

Description

Dishwasher detergent dispenser

The present invention relates to a detergent dispenser for household appliances for washing, in particular, a dishwasher, and has been developed in relation to a dispenser having an automatic sliding detergent cover (31).

Household appliances for washing, especially dishwashers, usually have a device for dispensing the washing agent. In general, such washing devices are provided for dispensing two different cleaning agents in liquid form (detergent and liquid rinse additive) at different moments of the dishwashing cycle. According to the most widely known method, a chamber for injecting a cleaning agent into the body of the dispenser is formed. The chamber has a sealing cover, and the sealing cover is configured to be manually opened and closed by a user after detergent is input. When the dishwasher is operated, the opening operation of the cover is appropriately controlled by a program of the washing machine. According to a known method, the closure cover is slidably constrained to the body of the dispenser and provided with sliding guides for sliding along a partially inclined or curved path between the closed position and the open position. The devices of the above type are disclosed in Publication No. 10-2016-0040552 (2016, 4, 1) and Publication No. 10-2018-0019659 (2018, 2, 26). However, in this prior art (FIG. 3), when the chamber cover slides and moves according to the sliding guide provided in the body, it must slide down to the upper surface of the chamber without damaging the rubber packing installed on the bottom of the chamber cover, and at the same time maintain detergent sealing properties In order to do this, the chamber cover must be forcibly locked by pushing it by hand to the curved groove of the sliding guide part of the body (curved downward). A complex structure was required.

The object of the present invention is basically made to solve the problems as described above, and the feature of the present invention is to eliminate the inconvenience of manually locking the sealing cover of the detergent unit by forcibly and very effectively by pressing the switch button. An object of the present invention is to provide a detergent dispensing dispenser device that is appropriately controlled using a driving motor to provide automatic opening and closing of the secondary sealing cover and automatic opening in the automatic detergent dispensing cycle (Fig. 4, Fig. 5, Fig. 6).

In order to achieve the above object, the dishwasher dispenser opening and closing device of the present invention includes a dispenser body 30 having chambers 30-1 and 30-5 for receiving and dispensing detergent and rinse aid. ) of the chamber cover 31, which allows the detergent inside the chamber to be opened and closed while sliding and reciprocating in the sliding guide portions 30-2, 30-3, and the chamber cover 31 are automatically operated by a motor. A device for reciprocating slide movement (Fig. 4, Fig. 5), a rinse storage cover 46 attached so that a rinse storage space can be provided at the lower portion of the body 30, and rinse with an appropriate cycle It is a dishwasher dispenser equipped with a solenoid device (FIG. 6) for controlling the distribution valve unit.

The dispenser device for a dishwasher according to an embodiment of the present invention automatically has a conventional structure in which the detergent chamber cover is opened and closed by a manual operation. The dispenser device for a dishwasher according to the present invention provides the following effects. First, the present invention can easily open and close the detergent chamber cover automatically by a simple pressing operation of the switch button. The conventional manual operation method has a structure that slides and locks the chamber cover by hand, which causes very inconvenient operability. Second, the conventional chamber cover opening/closing device has a problem of increasing the manufacturing cost due to the difficult process of installing the rubber packing on the slide surface as it slides by installing a rubber packing on the lower part of the chamber cover. During the operation of the slide, the rubber packing was damaged. The present invention does not require parts such as rubber packings because the surface contact (polishing) sliding friction between the upper surface of the chamber part edge of the body and the lower surface of the chamber cover is made as well as automatic driving of the chamber cover (FIG. 7). Third, the detergent is sealed by surface contact, but surface compression is achieved by the plate springs provided on both sides of the body slide part and the upper part of the chamber cover. In order to reduce the resistance, the surface friction sliding of each slide surface is made very easily by the rolling ball bearings installed in the upper left and right corners of the chamber cover (Fig. 8, Fig. 9).

* Figures 1 and 2 are for a dishwasher according to an embodiment of the present invention
It is a product diagram of the dispenser device.
* Figure 3 is a product real view of a dispenser device for a dishwasher according to the prior art.
* Figures 4, 5, and 6 are for a dishwasher according to an embodiment of the present invention
It is an exploded perspective view of each section of the dispenser device.
* FIG. 7 is a view of a dispenser device for a dishwasher according to an embodiment of the present invention;
It is a diagram showing the structure of the chamber cover.
* Figure 8, Figure 9, Figure 10, Figure 11 is a chamber cover according to an embodiment of the present invention
It is a drawing to show the structure of the slide part.
* Figures 11 and 12 are a dispenser for a dishwasher according to an embodiment of the present invention.
This is a diagram showing the opening and closing of the detergent injection part and the rinse aid part of the device.
* Figs. 14 and 15 show different viewing directions according to an embodiment of the present invention.
It is an exploded perspective view.
* Figures 16 and 17 are views of the detergent input unit device according to an embodiment of the present invention.
It is a projection drawing with the cover removed to show the internal structure.
* Figure 18 is a detailed view of the contact control unit
* Figure 19 is a projection view of the contact control unit
* Figure 20 is a detailed view with the support of the contact control unit removed
* Figure 21, Figure 22, Figure 23 is an explanatory diagram of the operation of the contact control unit
* Figure 24 is a detailed view of the lead sensor control device
* Fig. 25 is a cross-sectional view showing the rinse distribution control structure.
* Figure 26 is a view showing the rinse storage space
* Figure 27 is a view showing the structure of the rinse inlet and the rinse outlet

Hereinafter, the present invention will be described in detail with reference to the drawings for explaining the dispenser opening and closing device for a dishwasher according to preferred embodiments of the present invention. The dispenser opening and closing device for a dishwasher according to an embodiment of the present invention is a dispenser body 30, a detergent dispensing device (FIGS. 4 and 5), and a rinse aid dispensing device with reference to the devices for each section in FIGS. (Fig. 6), and the dispenser body 30 includes a detergent chamber 30-1, a detergent cover 31, a sliding guide unit (Fig. 13), a rinse aid injection unit (Fig. 13), and a rinse storage unit (Fig. 27). , and a rinse distribution valve part (FIG. 6). The detergent chamber 30-1 of the dispenser body has a rectangular shape, the upper part is open so that detergent is injected, and the upper surface has an edge surface of a certain area. The upper edge surface is maintained flat by grinding after molding. In addition, the chamber cover 31 that interacts with it is mounted on the slide unit provided in the dispenser body 30 and reciprocates while making surface contact with the upper surface 30-4 of the chamber upper rim of the body. The reciprocating motion of the chamber cover 31 is made by the eccentric lever 35 rotating in connection with the rotational motion of the motor 5, and the eccentric rotation shaft 35-1 of the eccentric lever 35 is the chamber cover 31. It is connected to the square hole 31-1 provided in the lower part of the eccentric lever central axis is connected to the motor drive output shaft 15, the operation is made. The lower surface of the chamber cover (FIG. 10), which is in surface contact with the upper surface of the detergent chamber, is polished after molding to make surface contact with the upper surface of the upper edge of the detergent chamber (FIG. 9), and the dispenser body 30 to facilitate surface compression. Two leaf springs 32 are installed in both spaces between the sliding guide part (FIG. 13) and the upper side of the chamber cover (FIG. 7), and the chamber cover 31 to reduce the surface compression force acting by the leaf spring 32 and the sliding resistance. Four rolling ball bearings 33 (both front and rear sides of the chamber cover) are provided at the corners of the body sliding guide part (FIG. 13) where friction occurs. Detergent cover (31) operation control unit drive unit cover (2), DC motor (5), rotation transmission gear train (3~14), output shaft (15), rotation control cam (16), gear pin (23), contact operation It is composed of parts 19, 20, 21, 22, 29, and contact opening/closing switch parts 17, 18, 24, 25, 26, 28, and the like. A small DC motor is used for the DC motor, and the number of rotations and torque generated from the motor are gear train gear ratios, and the output rotation speed and output torque can be appropriately adjusted. It is configured to prevent the rotation of the motor by offsetting the rotational force of the motor even when the chamber cover 31 is restrained from the outside. The rotation control cam 16 operates in conjunction with the output gear 15 so that the chamber cover 31 performs a two-division reciprocating forward/backward motion. In addition, a contact operation unit (FIG. 18) for controlling the two-segment reciprocating forward/backward motion in connection with the rotation cam 16 is provided on the side of the rotation control cam 16 and is composed of a two-stage contact plate (FIG. 19, FIG. 20). The first stage lower part (20, 22b) is a contact circuit used when automatically opening the chamber cover, and the second stage upper part part (19, 22a) is a contact circuit used when the contact control part opens and closes the chamber cover 31 manually. . 21 is an operation circuit diagram when the detergent cover is closed in the manual mode, and FIG. 22 is an operation circuit diagram when the detergent cover is opened in the manual mode. 23 is an operation circuit diagram when the detergent cover is opened in an automatic mode inside the washing machine during operation of the dishwasher. The contact opening/closing switch part (FIG. 5) is composed of a switch button 38, a fixed cover 37, a support 36, a slide lever 17, a slide spring 18, a contact plate lever 28, etc., and the chamber cover (31) is a device necessary to turn on/off the operation of the contact plate 22a when manually opening and closing. 30) It is composed of a waterproof structure that does not allow water to enter the inside. The rinse injection part (FIG. 13) is provided on the upper part of the dispenser body 30, and a rinse storage space (FIG. 26) tank is configured in the dispenser body lower cover 46 to accommodate a large amount at a time, and the rinse water inlet (FIG. 13) ) is sealed by a rubber packing 61 fixed to the rinse cover 60 after rinse injection, and has a hinge-fixed opening structure that can be manually opened and closed. An outlet (FIG. 27) through which the rinse aid flows by the operation of the rinse distribution valve (FIG. 6) is provided below the rinse inlet. In addition, the rinse inlet has an air bleed hole (Fig. 27) for easy rinse injection and rinse discharge. Inside the rinse storage unit, a bladder 47 and a bladder magnet 48 that detect the amount of rinse are located. The cover 46 is provided with a lead sensor 70 for detecting the position of the swim bladder, and the rinse valve driving part (FIG. 6) includes solenoid valves 40 to 45 that open and close the rinse outlet so that the rinse aid is properly distributed as needed. A rubber packing 49 is mounted on the outer periphery of the dispenser body 30 so that water inside the dishwasher does not enter the lower operating part of the dispenser.

1: fixed screw
5: DC Motor
13: planet gear
23: gear pin (shaft)
29: contact support
30: dispenser body;
31: chamber sliding cover
32: leaf spring
33: ball bearing
38: switch button
40: Solenoid Assy
46: rinse tank cover
47 : swim bladder
48 : Magnet
49: rubber packing
70: Reed sensor Assy

Claims (2)

As a dispenser for dispensing detergent and rinse aid for household dishwashers, the reciprocating motion of the chamber cover of the dispenser body is made by an eccentric lever that rotates in connection with the rotational motion of the DC motor. Two plate springs are installed in both spaces between the sliding guide part of the dispenser body and the upper side of the chamber cover so that friction occurs, and the edge of the sliding guide part of the dispenser body where friction occurs with the chamber cover to reduce the surface compression force applied by the plate spring Dispenser, characterized in that rolling ball bearings are mounted on four (front and rear sides of the chamber cover). The DC motor according to claim 1, wherein the chamber cover operation control unit is located at the lower part of the dispenser body and is composed of a DC motor, a rotation transmission gear train, an output shaft, a rotation control cam, a contact operation unit, and a contact opening/closing switch unit. A planetary gear device is provided in the rotation transmission gear train to prevent rotation of It is provided in the first stage lower end used to automatically open the chamber cover and the second stage upper end is used for manual opening and closing. Dispenser comprising a contact plate lever for turning on and off the operation of the single upper end.

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