KR20100008745A - Impeller cover of pump for a dish washer - Google Patents

Abstract

The present invention relates to an impeller cover of a pump for a dishwasher, the main object of which is to prevent corrosion of the impeller cover, and to prevent leakage by the crack of the cover.

Impeller cover of the dishwasher pump according to the present invention for achieving this object is characterized in that the first and second cover having the appearance is injection molded using a synthetic resin material.

Accordingly, it does not corrode even by moisture generated during dish washing, and cracks of the cover do not occur due to the toughness peculiar to synthetic resin, thereby preventing leakage during dish washing.

Description

IMPELLER COVER OF PUMP FOR A DISH WASHER}

The present invention relates to an impeller cover of a dishwasher pump, and more particularly, to an impeller cover of a dishwashing pump made of a synthetic resin material.

The present invention is a domestic priority claim application for the application No. 10-2008-0069347 filed July 16, 2008.

Generally, the impeller cover of the dish washing pump is manufactured by a die casting method using a non-metal alloy such as aluminum.

However, the die-casting method as described above has a problem that the manufacturing cost is high due to the complicated manufacturing process as well as the huge equipment.

In addition, these days, when the raw material prices rise sharply, the manufacturing cost is further increased to avoid users to use.

In addition, as described above, nonmetallic materials such as aluminum cause corrosion by moisture, and fatal defects in which tableware and the like are contaminated by the corrosion occur.

In addition, the aluminum has a problem that the crack occurs in the bearing portion when used for a long time, leaks and leads to bearing corrosion.

The present invention has been made to solve the conventional problems as described above, the purpose of the impeller cover to manufacture a relatively simple and simple manufacturing method, but also to supply a dishwasher pump widely reduced raw material costs.

In addition, another object of the present invention is to clean the impeller cover when using a material that does not corrode, the crack is prevented, when washing the dishes to eat food.

The present invention for achieving the above object;

The impeller cover of the dishwasher pump,

The impeller cover is characterized in that the first and second cover having an outer shape is injection molded using a synthetic resin material.

Accordingly, while the impeller cover is manufactured by a relatively simple and simple manufacturing method, there is an effect of widely supplying a pump for a dishwasher having reduced raw material costs.

In addition, the impeller cover does not corrode, using a material that prevents cracking, when washing the food intake, there is an effect to ensure the hygiene of the user to be able to cleanly clean.

1 to 3, the impeller cover 100 of the dish washing machine pump 10 (hereinafter, referred to as a "pump") according to the present invention is manufactured by a synthetic resin injection molding method to cover the first cover 110. And the second cover 130 are roughly divided.

The first cover 110, when viewed from one side, is provided with a cylindrical housing 111, to facilitate the rotation of the impeller 15 therein.

An inlet 113 is formed at the center of one side of the housing 111, and the inlet 113 is connected to a water supply hose not shown.

In addition, the outlet 115 is formed in one vertical direction of the inlet 113 so that water introduced from the inlet 113 by the rotational force of the impeller 15 is inertial in the housing 111 and is operated at a high pressure. Erupted.

A protruding jaw 117 is formed in the housing 111 so that water introduced through the inlet 113 is discharged directly through the outlet 115 without being returned from the housing 111.

The protruding jaw 117 is formed thick in the direction parallel to the outlet 115 and gradually formed thinner along the circumferential surface of the housing 111 to facilitate the flow of water for washing dishes.

A plurality of bolts 119a are integrally formed on one side edge of the housing 111 such that a protruding flange 119 is formed to facilitate engagement with the second cover 130 to be described later.

As shown in the drawing, the second cover 130 is formed with a flange 131 having a plurality of through holes 131a formed at a circumferential edge thereof, similarly to the flange 119 of the first cover 110. That is, the shaft through-hole 133 is provided with a bearing 12 to facilitate the passage of the rotation shaft 10a of the pump 10 at a position concentric with the inlet 113. ) Is the same as the conventional technology, detailed description thereof will be omitted.)

As such, the impeller cover 100 according to the present invention is disposed on the left and right sides of the impeller 15 disposed on one side of the pump 10 and imparts water introduced into the inlet 111 formed in front of the impeller 11. It is discharged at a high pressure through the outlet 115 by the rotational force of, to wash the dishes.

As described above, the impeller cover 100 including the first and second covers 110 and 130 is manufactured by injection molding a synthetic resin, and has been spotlighted as a synthetic resin instead of iron. Glass fiber is added in a 45% ratio to 54.5% of polyamide 6, which is a main raw material of the polyamide 6, and 0.3 to 0.5% of ethylene bis- tiaraamide (EBS) is added thereto.

Polyamide 6 (hereinafter referred to as PA6) is a polymer compound having an acid amide bond. In addition to 6, 4,6-6,6-10,7,8,9,11, There are a lot of 12 lights, but PA6 and PA6-6 are mainly used for injection molding products.

PA 6-6 shows high stiffness, but PA 6 has excellent weather resistance and heat resistance, and because of its excellent barrier properties, it can be applied to dishwashers that accept food mainly due to its characteristics of being used as a packaging material for oxygen sensitive foods. It is.

In addition, PA 6 is a glass fiber is added at a 45% ratio to prevent cracking during long-term operation, thereby enhancing the wear resistance and impact resistance.

In addition, ethylene bis tiaraamide (EBS) added in an amount of 0.3 to 0.5%, which is much smaller than the main raw materials, is a release agent, and prevents the raw materials from sticking to the inner surface of the injection mold during the curing process. It is a lubricant.

As such, the impeller cover 100 of the pump for a dishwasher according to the present invention may be manufactured by an injection molding method, which is a relatively simple manufacturing method, and may also reduce raw material costs.

In addition, by using a synthetic resin material that does not corrode, and prevents cracks, when washing dishes containing food, it can be cleaned cleanly to ensure the hygiene health of users.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Such modifications will fall within the scope of the claims of the present invention.

1 is a perspective view showing the appearance of a dishwasher pump equipped with an impeller cover for a dishwasher according to the present invention;

2 is a cross-sectional view taken along the line “A”-“A” of FIG. 1,

3 is a cross-sectional view taken along line “B”-“B” in FIG. 2.

Claims (3)

In the impeller cover disposed on one side of the dishwasher pump, The impeller cover is an impeller cover of the dish washing pump, characterized in that the first and second cover having an outer shape injection molding using a synthetic resin material. The method of claim 1, The impeller cover made of synthetic resin is an impeller cover of a dish washing pump comprising 54.5% polyamide 6, 45% glass fiber, and 0.3 to 0.5% ethylene bis tiaraamide (EBS). . An impeller cover of a dish washing pump, which is manufactured by the method of claim 1.

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