KR20160142715A - Filter assembly and refrigerator having the same - Google Patents

Filter assembly and refrigerator having the same Download PDF

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Publication number
KR20160142715A
KR20160142715A KR1020150078803A KR20150078803A KR20160142715A KR 20160142715 A KR20160142715 A KR 20160142715A KR 1020150078803 A KR1020150078803 A KR 1020150078803A KR 20150078803 A KR20150078803 A KR 20150078803A KR 20160142715 A KR20160142715 A KR 20160142715A
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KR
South Korea
Prior art keywords
filter
peripheral
central
upper case
case
Prior art date
Application number
KR1020150078803A
Other languages
Korean (ko)
Inventor
강신욱
장시호
전우성
이춘배
Original Assignee
삼성전자주식회사
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Priority to KR1020150078803A priority Critical patent/KR20160142715A/en
Publication of KR20160142715A publication Critical patent/KR20160142715A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0024—Filters in the air flow cooling refrigerating machinery

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

A filter assembly and a refrigerator having the same are disclosed. The filter assembly includes a lower case having a lower case and a lower case formed with an inlet portion and a lower case having a discharge portion formed thereon. The filter case is disposed in the upper case along the longitudinal direction of the upper case, A filter portion; And a plurality of peripheral filter portions protruding from the central filter portion along the longitudinal direction of the central filter portion, wherein the plurality of peripheral filter portions are closed at the upper portion and the lower portion communicates with the discharge portion of the lower case portion have.

Description

FIELD OF THE INVENTION The present invention relates to a filter assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter assembly, and more particularly, to a filter assembly for maximizing a filtering speed of raw water by using a filter having a fractal structure and a refrigerator having the filter assembly.

In the case of tap water supplied in general, water is taken from the water intake station, purified in a water purification plant, and then sent to a reservoir through a large water supply pipe. Thereafter, the water is drained from the drainage pipe to the front road of each family, and each household receives water through the water supply pipe branched from the drainage pipe.

The department responsible for the waterworks business of each municipality is constantly trying to supply clean water by periodically replacing and washing large water pipes and water pipes. However, in a single-family house or apartment, not only the management of the water supply pipe branching from the water pipe is neglected, but the inside of the building is required to replace the water supply pipe inside the building. Therefore, the inside of the water supply pipe is left for a long time after the building is newly built, A problem occurred.

Accordingly, each household consumed water using a water purifier, and a water purification system was required to use electronic devices such as washing machines and dishwashers.

Examples of the purification method according to the conventional water purifier filter include a hollow fiber membrane filter method, a reverse osmosis filter method, an ion exchange resin filter method, and a method in which a functional filter is added. Among them, the water purification method in which a functional filter is added is widely used in which a filter formed by molding porous ceramic particles into a cylindrical shape and sintering at a high temperature is used.

However, the conventional filter is formed into a cylindrical shape and has a small contact area with water, so that the amount of water to be filtered is extremely small compared with the amount of water to be supplied. Accordingly, there is a problem that the use time is increased in using an electronic device such as a washing machine or a dishwasher.

In addition, the conventional filter has a problem in that foreign matter is deposited on a portion of the filter adjacent to the water supply portion at the upper end of the case and drained at the lower end thereof to feed water, thereby lowering the filtering efficiency and cleaning the filter frequently.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a filter that maximizes an area of contact between a filter and water to increase a filtering speed, And an object of the present invention is to provide an assembly and a refrigerator having the same.

According to an aspect of the present invention, there is provided a filter assembly in which an upper case having an inlet portion and a lower case having a discharge portion are detachably coupled to each other, A central filter portion disposed along the longitudinal direction and having a hollow central inflow portion therein; And a plurality of peripheral filter portions protruding from the central filter portion along the longitudinal direction of the central filter portion, wherein the plurality of peripheral filter portions are closed at the upper portion and the lower portion communicates with the discharge portion of the lower case portion have.

The central filter portion communicates with the upper case through a grill portion disposed at the upper portion, and the lower portion of the central filter portion can be closed.

The inflow portion may be formed between the upper end of the upper case and the upper end of the peripheral filter portion.

The plurality of peripheral filter portions may be closed at an upper portion, and the lower portion may communicate with a collecting portion formed at the lower case.

Peripheral perforations may be formed along the longitudinal direction of the peripheral filter portion so that the filtered water may flow into the collecting portion.

The airtight portion may be formed between the lower end of the upper case and the lower end of the peripheral filter portion.

The water collecting part forms an inclined surface inclined to a predetermined angle from the discharge part, and a plurality of spiral grooves may be formed in the inclined surface.

The upper portion of the central filter portion may be detachably coupled to the upper end of the upper case at a predetermined position.

The center filter portion may be formed in a circular shape in a horizontal section, and the peripheral filter portion may be formed in a semicircular shape in a horizontal section.

It is also possible that a peripheral through hole is formed in the peripheral filter portion, and the peripheral through hole communicates with the collecting portion.

The center filter unit may include a plurality of center through holes spaced around the central inlet formed in the center filter unit.

At least one sub-filter portion is formed on the outer periphery of the peripheral filter portion, and a hollow sub through-hole may be formed in the sub-filter portion.

It is of course possible that the hollow sub-through hole is closed at the top and the bottom is in communication with the outlet of the lower case.

The center filter portion and the peripheral filter portion may have a polygonal cross section.

The center filter portion may be provided with a corner filter portion at each corner.

It is also possible that at least one peripheral through hole and at least one corner through hole are formed in each of the peripheral filter portion and the corner filter portion.

A plurality of rectangular columnar sub-filter portions are formed outside the peripheral filter portion, and a hollow sub through-hole may be formed in each of the sub-filter portions.

The upper case and the peripheral filter unit may increase or decrease in cross-sectional area from the upper portion to the lower portion of the upper case.

The center filter portion and the plurality of peripheral filter portions may be formed of a porous ceramic material.

According to an aspect of the present invention, there is provided a refrigerator having a filter assembly, the filter assembly including: an upper case having an inlet; A lower case detachably coupled to the upper case and having a discharge part; A central filter portion disposed in the upper case along the longitudinal direction of the upper case and having a hollow central inflow portion therein; And a plurality of peripheral filter portions protruding from the central filter portion along the longitudinal direction of the central filter portion, wherein the plurality of peripheral filter portions are closed at the upper portion and the lower portion communicates with the discharge portion of the lower case portion have.

The central filter portion communicates with the upper case through a grill portion disposed at the upper portion, and the lower portion of the central filter portion can be closed.

The inflow portion is formed between the upper end of the upper case and the upper end of the peripheral filter portion, and the plurality of peripheral filter portions are closed at the upper portion and the lower portion is in communication with the collecting portion formed at the lower case.

1 is a perspective view showing a filter assembly according to a first embodiment of the present invention.
2 is a cross-sectional view illustrating a filter assembly according to a first embodiment of the present invention.
3 is a plan view showing a collecting part of a filter assembly according to a first embodiment of the present invention.
4A is a cross-sectional view showing an example of a filter according to the first embodiment of the present invention.
4B is a cross-sectional view showing a first modification of the filter according to the first embodiment of the present invention.
4C is a sectional view showing a second modification of the filter according to the first embodiment of the present invention.
5A is a cross-sectional view showing a third modification of the filter according to the first embodiment of the present invention.
5B is a cross-sectional view showing a fourth modification of the filter according to the first embodiment of the present invention.
6 is a cross-sectional view illustrating a filter assembly according to a second embodiment of the present invention.
7 is a cross-sectional view illustrating a filter assembly according to a third embodiment of the present invention.

Hereinafter, a filter assembly according to the present invention will be described in detail with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

FIG. 1 is a perspective view showing a filter assembly according to a first embodiment of the present invention, and FIG. 2 is a sectional view showing a filter assembly according to a first embodiment of the present invention.

Referring to Figures 1 and 2, a filter assembly 1000 according to a first embodiment of the present invention is described.

The filter assembly 1000 includes an inlet 10, an upper case 20, an upper portion 30 of the central filter portion, a grill portion 40, a lower case 50, an upper case upper portion 60, A collecting portion 80, a discharge portion 90, an opening H, and a filter portion 100. [

The inflow section 10 is a place where unfiltered water that has passed through the indoor water supply pipe flows into the filter assembly 1000. The inlet 10 is formed at one side of the upper portion of the upper case 20 and is formed at a height between the grill portion 40 and the filter portion 100. With this configuration, when the inflow speed of the water is faster than the filtering speed of the filter unit 100, the water is filled up to the grill unit 40.

Accordingly, the water in the upper case 20 performs a swirling operation, and foreign matter is not easily stacked outside the filter unit 100. Accordingly, the present invention not only lengthens the cleaning period of the filter 100, but also increases the filtering efficiency as compared with the conventional method.

The upper case 20 accommodates the upper portion 30 of the central filter portion, the grill portion 40, the airtight portion 70, and the filter portion 100. The upper case 20 is spaced apart from the filter unit 100 by a predetermined distance so that water introduced from the inflow unit 10 is smoothly turned inside the upper case 20.

An airtight portion 70 is formed between the lower portion of the upper case 20 and the lower portion of the filter portion 100 to prevent unfiltered water from flowing into the catch portion 80 from the upper case 20.

The upper portion 30 of the central filter portion fixes the filter portion 100 to the upper case 20 and allows the water that has passed through the grill portion 40 to flow into the filter portion 100. The upper portion (30) of the central filter portion is formed integrally with the filter portion (100). However, it is of course possible to form the upper portion 30 of the central filter portion separately from the filter portion 100 according to the design so as to attach them to each other.

The water introduced from the inflow section 10 can be directed toward the upper portion 30 of the central filter section. Preferably, however, the direction of the inlet 10 is such that the top 30 of the central filter portion is in the direction of the center of the central filter portion to prevent velocity loss from occurring as the water entering the inlet portion 10 collides with the top portion 30 of the central filter portion. And the upper case 20, as shown in Fig.

The upper portion 30 of the central filter portion may be detachably coupled by a fixing means (not shown) at a predetermined position of the upper case upper portion 60.

The grill part 40 allows water to flow into the filter part 100 when water is blown from the upper case 20. The grill portion 40 is formed at a predetermined position of the upper portion 30 of the central filter portion so as to prevent a foreign substance having a large volume from flowing into the interior of the filter portion 100 to reduce the filtering efficiency.

The lower case 50 is detachably coupled to the upper case 20. A collecting part (80) is formed below the lower case (50).

The upper end portion (60) of the upper case is configured to close the upper case (20) at the upper end of the upper case (20). The upper end portion 60 of the upper case may be formed in a circular or rectangular shape corresponding to the shape of the cross section of the filter portion 100.

A fixing means (not shown) may be formed at a predetermined position of the upper end portion 60 of the upper case to fix the upper portion 30 of the central filter portion. The upper end portion 60 of the upper case may be integrally formed with the upper case 20, but it is of course possible that the upper end portion 60 is separately formed and attached to the upper case 20.

The airtight portion 70 prevents the unfiltered water in the upper case 20 from being immediately introduced into the catch portion 80. The airtight portion 70 is formed at a predetermined height at a position where the upper case 20 and the lower case 50 are detachably coupled to each other. The airtight portion 70 is formed so as to correspond to the outer shape of the filter portion 100 at a position where the airtight portion 70 is in contact with the filter portion 100. The airtight portion 70 is formed so as to correspond to the shape of the upper case 20 at a portion contacting the upper case 20. The airtight portion 70 may be formed to be attached to the upper case 20, but it is also possible that the airtight portion 70 is not attached to the upper case 20.

The airtight portion 70 of the present invention is formed at a predetermined height from the lower end portion of the upper case 20 and a bulky foreign substance contained in the water introduced from the inflow portion 10 is stacked on the airtight portion 70 do. The foreign substance contained in the water introduced from the inflow section 10 is also prevented from being deposited on the surface of the filter section 100 by the pivotal movement inside the upper case 20, Respectively. As a result, the cleaning period of the filter unit 100 becomes longer, and the inconvenience of the user of the electronic device such as the refrigerator is minimized. In addition, the stacking of the foreign substances on the outside of the filter unit 100 is minimized, so that the reduction of the filtering efficiency is minimized.

2 and 4A, the opening H is formed at the lower end of the filter unit 100, and more particularly, at the lower end of the peripheral through-hole 140 formed in the inner peripheral filter unit 120 . The water filtered by the peripheral through-holes 140 moves downward from the inside of the peripheral through-holes 140 and flows into the catches 80 through the openings H. [

Although not shown in detail in the present invention, the lower portion of each of the peripheral filter holes, the center filter hole, and the sub filter hole is formed with an opening H to communicate with the water collecting portion 80.

FIG. 3 is a plan view showing a catching portion 80 of the filter assembly 1000 according to the first embodiment of the present invention, in a portion A of FIG.

2 and 3, the collecting portion 80 and the discharging portion 90 of the filter assembly 1000 according to the present invention will be described in detail.

The water collecting part 80 is disposed inside the lower case 50 and drains filtered water from the filter part 100 to the discharge part 90. The collecting part 80 includes an inclined surface 81 and a swirling groove 83.

The inclined surface 81 of the collecting portion 80 is formed to be inclined from the portion adjacent to the lower end of the upper case 20 to the discharge portion 90. In FIG. 2, the cross section of the collecting section 80 is formed to be linear, but it is also possible that the cross section of the collecting section 80 is formed in an arc shape. Here, the arc shape means a shape that gradually curves toward the central portion of the discharge portion 90 from the upper portion of the inclined surface 81 toward the lower portion.

A plurality of swirling grooves 83 of the collecting portion 80 are formed on the inclined surface 81 and form a swirl from the lower end of the upper case 20 to the discharge portion 90. The swirling grooves 83 are formed so as to form a constant inclination and a groove between the inclined surfaces 81 so that the filtered water can be quickly discharged along the swirling grooves 83. Particularly, the water discharged along the swirl-like groove 83 is also discharged in the discharge portion 90 in a whirl-like manner, so that the water can be discharged more quickly and the pressure of the collecting portion 80 can be lowered. Accordingly, the pressure of the water collecting part 80 becomes lower than the pressure inside the upper case 20, so that the filtering speed in the filter part 100 can be further increased.

The discharge portion 90 discharges the filtered water to an electronic device (not shown). The discharge portion 90 is formed at a predetermined distance from the end of the collecting portion 80.

4A is a cross-sectional view showing an example of a filter according to the first embodiment of the present invention.

Referring to FIG. 4A, the filter unit 100 of the filter assembly 1000 will be described in detail.

The filter unit 100 includes a central filter unit 110, a peripheral filter unit 120, a central inflow unit 130, and peripheral through-holes 140. The filter unit 100 may be formed of a porous ceramic material.

The central filter unit 110 is formed of a filter having a predetermined thickness and extends from the upper end of the upper case 20 to the lower end of the upper case 20. [ The central filter unit 110 is formed inside the peripheral filter unit 120 and the upper portion 30 of the central filter unit is formed from the upper end of the peripheral filter unit 120 to the upper end of the upper case 20. The center filter unit 110 has a hollow cylindrical shape with a circular cross section and a hollow central inflow part 130 formed therein. The water introduced into the central inflow part 130 is filtered through the central filter part 110 and discharged to the water collection part 80 through the peripheral through-

The peripheral filter portion 120 is formed as a filter on the outside of the central filter portion 110. That is, the peripheral filter 120 includes a first curved portion 121 formed on the outer side of the central filter portion 110 to correspond to a portion of the outer periphery of the central filter portion 110, And a second curved surface portion 123 formed in a semicircular shape toward the outside of the central filter portion 110 at both ends. In the meantime, although six peripheral filter units 120 are illustrated in the present embodiment, it is also possible that the number of the peripheral filter units 120 is less than six or more than six.

The water around the peripheral filter unit 120 is mainly filtered in the peripheral filter unit 120 and the water filtered through the peripheral filter unit 120 is discharged to the water collecting unit 80 through a plurality of peripheral through holes 140. [ do.

The central inflow part 130 is a place where the inflow water through the grill part 40 waits for being filtered. The central inflow part 130 communicates with the upper case 20 through a grill part 40 formed on one side of the upper part 30 of the central filter part 110. The lower end of the central inflow part 130 is formed to be closed. When the inflow speed of the water is higher than the filtering speed of the peripheral filter unit 120 of the filter unit 100, water flows through the central inlet unit 130 ). The water introduced into the central inflow part 130 is filtered through the central filter part 110 and discharged to the water collection part 80 through the peripheral through-

The peripheral through hole 140 is formed in the peripheral filter unit 120 to guide the filtered water from the central filter unit 110 and the peripheral filter unit 120 to the water collecting unit 80. The upper portion of the peripheral through-hole 140 is closed, and the lower portion is communicated with the catching portion 80.

The peripheral through-holes 140 are formed in the peripheral filter unit 120 in a crescent-shaped or lune shape so that water on both sides of the central filter unit 110 and the peripheral filter unit 120 is effectively filtered, . However, it is of course possible that the peripheral through hole 140 is formed in a plurality of circular or square shapes depending on the design.

As described above, since the number of the peripheral filter units 120 is increased, the contact area between the filter unit 100 and the water can be increased, and water can be supplied to the inside of the filter unit 100 through the central filter unit 110 Filtered.

Accordingly, compared to the conventional invention in which the penetration area of water is so narrow that a sufficient amount of filtered water can not be supplied, the present invention maximizes the contact area between the water and the filter unit 100, thereby continuously supplying an abundant quantity of water to the refrigerator , And the use time of an electronic device such as a dishwasher or a washing machine can be greatly reduced.

Although the center filter 110 and the peripheral filter 120 of the filter unit 100 may be integrally formed, the center filter unit 110 and the peripheral filter unit 120 may be formed separately, It is of course also possible to form such that it adheres.

4B is a cross-sectional view showing a first modification of the filter according to the first embodiment of the present invention. The first modification of the filter according to the first embodiment of the present invention is substantially the same as that of the filter according to the first embodiment of the present invention shown in FIG. (250). In the first modification, corresponding reference numerals are assigned to the same components as in the first embodiment, and description of the same components is omitted.

Referring to FIG. 4B, the filter 200 according to the first embodiment of the present invention is configured such that the thickness of the central filter portion 210 is thicker than the filter 100 of FIG. 4A. That is, the central filter unit 210 may form a plurality of central through holes 250 around the center inflow unit 230 formed in the center filter unit 210. Accordingly, the inflow volume of the central inflow portion 230 can be made smaller than that of the central inflow portion 130 of the filter 100 of FIG. 4A.

The central through hole 250 is a portion where the water of the central inlet 230 is filtered and introduced through the central filter portion 210. In the present embodiment, six central through holes 250 are formed adjacent to the portions where the peripheral filter portions 220 meet. This is to minimize the distance between the unfiltered water and the respective perforation holes 240 and the respective central through holes 250. However, according to the design, it is of course possible to reduce the size of the central through hole 250 to form six or more than six central through holes 250.

The upper portion of the central through hole 250 is closed, and the lower portion of the central through hole 250 is communicated with the water collecting portion 80.

4C is a sectional view showing a second modification of the filter according to the first embodiment of the present invention. The second modification of the filter according to the first embodiment of the present invention is substantially the same as that of the filter according to the first embodiment of FIG. 4A, (360). In the second modification, the same reference numerals are assigned to the same components as in the example of FIG. 4A, and the description of the same components is omitted.

Referring to FIG. 4C, the filter 300 according to the first embodiment of the present invention has a sub-filter portion 350 and a sub-through hole 360 added to the filter 100 of FIG. 4A.

The filter 300 according to the first embodiment of the present invention can be regarded as an application of a fractal structure. A fractal structure is a structure in which a small structure repeats endlessly in a form similar to the whole structure. In other words, it refers to the geometric structure of the self-similarity concept that the part and the whole have the same shape. Fractal structure is the most effective method to secure the maximum contact area within the same volume.

The filter 300 according to the first embodiment of the present invention is a structure that maximizes the area of contact with water by repeating the filters 320 and 350 of the same shape similar to the fractal structure.

A plurality of sub-filter units 350 are formed outside the peripheral filter unit 320 to filter the unfiltered raw water in the upper case 20. The sub filter unit 350 is formed in the same shape as the peripheral filter unit 320, and the sub filter unit 350 is formed in a small size.

In this embodiment, four sub-filter units 350 are formed in each of the peripheral filter units 320, but it is also possible to form four or more sub-filter units 350. Also, it is of course possible to form a smaller filter unit (not shown) outside the sub-filter unit 350 according to the design.

The sub through hole 360 is a portion into which the filtered water flows in the sub filter portion 350. The upper portion of the sub through hole 360 is closed, and the lower portion is communicated with the catch portion 80.

As described above, the present invention can maximize the filtering speed by maximizing the contact area between the water and the filter by taking a pseudo fractal structure.

5A is a cross-sectional view showing a third modification of the filter according to the first embodiment of the present invention. The third modification of the filter according to the first embodiment of the present invention is the same as the example of the filter according to the first embodiment of the present invention in Fig. 4A except for the difference in shape. In the third modification, the same reference numerals are assigned to the same components as those in the first embodiment, and a description of the same components is omitted.

5A, the filter 400 according to the first embodiment of the present invention includes a central filter unit 410, a peripheral filter unit 420, a central inflow unit 430, a corner filter unit 440, Hole 450 and peripheral through-hole 460.

The central filter unit 410, the peripheral filter unit 420, the central inflow unit 430, and the peripheral through-hole 460 are rectangular in shape, And detailed description thereof will be omitted.

The corner filter portion 440 having a rectangular shape may be formed at each inner corner of the rectangular central filter portion 410. The edge filter unit 440 filters a part of the water introduced into the central inflow part 430.

A corner through hole 450 is formed in the corner filter portion 440. The corner through-hole 450 is a portion where the central inflow portion 430 and the water outside the filter portion 400 are filtered and introduced. Although the corner penetrating light 450 is exemplified as a rectangular shape in the present embodiment, it is of course possible to be formed into a circular shape or an elliptical shape.

Although the peripheral through hole 460 is formed in the peripheral filter portion 420 and four peripheral through holes 460 are formed in each of the peripheral filter portions 420 in the present embodiment, It is of course possible to form more than two peripheral through holes 460.

 5B is a cross-sectional view showing a fourth modification of the filter according to the first embodiment of the present invention. The fourth modification of the filter according to the first embodiment of the present invention is substantially the same as the third modification of the filter according to the first embodiment of FIG. 5A, The configuration of the through hole 580 is different. In the fourth modified example, the same reference numerals are assigned to the same components as the third modified example, and description of the same components is omitted.

The filter 500 according to the first embodiment of the present invention is a structure that maximizes the contact area with water by repeating the filters 520 and 570 of the same shape similar to the fractal structure.

A plurality of sub-filter units 570 are provided outside the peripheral filter unit 520 to filter the unfiltered raw water in the upper case 20. The sub filter portion 570 is formed in the same shape as the peripheral filter portion 520, and is formed to have a small size.

In the present embodiment, three sub filter portions 570 are formed in each of the peripheral filter portions 520, but it is also possible to form three or more sub filter portions 570. Also, it is of course possible to form a smaller filter portion (not shown) outside the sub-filter portion 570 according to the design.

The sub through hole 580 is a portion into which the filtered water flows in the sub filter portion 570. The upper portion of the sub through hole 580 is closed, and the lower portion is communicated with the catch portion 80.

As described above, the present invention can maximize the filtering speed by maximizing the contact area between the water and the filter by taking a pseudo fractal structure.

The filter portions of the rectangular structure as shown in Figs. 5A and 5B have a rectangular shape. Accordingly, the portion of the airtight portion 70 formed at the lower end of the circular upper case 20 in contact with the filter portions can be formed in a shape corresponding to the filter portions.

5A and 5B illustrate the filter units having the rectangular structure. However, it is also possible that the cross sections of the filter units are formed in polygons such as pentagons, hexagons, and triangles.

Hereinafter, the operation of the filter assembly 1000 according to the first embodiment of the present invention will be described with reference to FIGS. 1, 2, 3, and 4A. Particularly, Fig. 2 discloses the flow direction of water.

Unfiltered raw water that has passed through an indoor water supply pipe (not shown) through the inflow section 10 flows into the inside of the upper case 20. The introduced raw water is not discharged directly to the water collecting part 80 but is filtered through the filter part 100 by the hermetic part 70 formed in the lower part of the filter part 100 and the upper case 20.

The water is supplied to the upper part of the upper case 20 through the chafer grill part 40 and the filter part 100 when the inflow speed of the water through the inflow part 10 is larger than the filtering speed of the water from outside the filter part 100. [ As shown in FIG.

Thus, water having a large volume removed through the grill of the grill part 40 is introduced into the central inflow part 130 of the filter part 100. The water introduced through the central inlet portion 130 is filtered by the center filter portion 110 and flows into the peripheral filter hole 140. The water in the filtered peripheral filter hole 140 is discharged to the water collecting part 80 and is rotated along the inclined vortical hole 83 of the water collecting part 80 to be discharged to the discharge part 90.

When the water in the upper case 20 is empty, the water introduced from the inlet 10 rotates inside the upper case 20 so that foreign substances are not accumulated outside the filter unit 100. Thus, the foreign matter is stacked on the upper portion of the airtight portion 70.

6 is a cross-sectional view illustrating a filter assembly according to a second embodiment of the present invention.

The filter assembly 2000 according to the second embodiment of the present invention is substantially the same as the filter assembly 1000 according to the first embodiment of the present invention shown in Figs. 1 and 2, and includes the upper case 1020 and the filter The shape of the portion 1100 is different. In the second embodiment, the same reference numerals are assigned to the same components as those in the first embodiment, and a description of the same components is omitted.

The upper case 1020 according to the second embodiment of the present invention is configured to have a gradually increasing sectional area from the upper part to the lower part. Since the cross section of the upper case 1020 is circular, the diameter of the cross section of the upper case 1020 gradually increases from the upper part to the lower part.

The cross-sectional area of the filter portion 1100 gradually increases from the upper portion to the lower portion. Accordingly, the cross-sectional area of the central filter unit (not shown) may be configured such that the upper and lower sections are the same, and the cross-sectional area of the peripheral filter unit (not shown) gradually increases from the upper part to the lower part. However, it is of course possible to gradually increase the sectional area of the central filter portion from the upper portion to the lower portion, in order to increase the volume of water flowing into the central filter portion (not shown) to increase the filtering speed.

7 is a cross-sectional view illustrating a filter assembly according to a third embodiment of the present invention.

The filter assembly 3000 according to the third embodiment of the present invention is substantially the same as the filter assembly 1000 according to the first embodiment of the present invention shown in Figs. 1 and 2, and includes the upper case 2020 and the filter The shape of the portion 2100 is different. In the third embodiment, corresponding reference numerals are assigned to the same components as those in the first embodiment, and description of the same components is omitted.

The upper case 2020 according to the third embodiment of the present invention is configured such that its sectional area decreases gradually from the upper part to the lower part. Since the cross section of the upper case 2020 is circular, the diameter of the cross section of the upper case 2020 gradually decreases from the upper part to the lower part.

The filter portion 2100 also gradually decreases in cross-sectional area from the upper portion to the lower portion. Accordingly, the cross-sectional area of the central filter unit (not shown) may be configured such that the upper and lower sections are the same, and the cross-sectional area of the peripheral filter unit (not shown) may decrease gradually from the upper part to the lower part. However, it is of course possible to reduce the cross-sectional area of the central filter portion at the upper portion and gradually decrease at the lower portion in order to increase the volume of the water flowing into the central filter portion (not shown) to increase the filtering speed.

Although not shown, it is also possible to form the shape of the upper case (not shown) and the filter part (not shown) to increase from the upper part to the lower part and to be gradually decreased from the lower part to the lower part.

The filter assembly according to the invention can be used for watering for drinking in a refrigerator. However, it is of course possible to use not only water purifiers but also electronic devices such as dishwashers and washing machines.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: inlet 20: upper case
30: upper portion of the central filter portion 40:
50: lower case 60: upper case upper part
70: airtight portion 80:
90: discharging part 100: filter part
110: center filter unit 120: peripheral filter unit
130: central inflow part 140: peripheral through hole
1000, 2000, 3000: Filter assembly

Claims (22)

A filter assembly in which an upper case with an inlet portion and a lower case with an outlet are removably coupled,
A central filter portion disposed in the upper case along the longitudinal direction of the upper case and having a hollow central inflow portion therein; And
And a plurality of peripheral filter parts protruding from the outer periphery of the central filter part along the longitudinal direction of the central filter part,
Wherein the plurality of peripheral filter portions are closed at an upper portion and the lower portion communicates with a discharge portion of the lower case. The method according to claim 1,
Wherein the central filter portion communicates with the upper case through a grille portion disposed on the upper portion, and the lower portion of the central filter portion is closed. The method according to claim 1,
Wherein the inlet is formed between an upper end of the upper case and an upper end of the peripheral filter. The method according to claim 1,
Wherein the plurality of peripheral filter portions are closed at an upper portion and the lower portion communicates with a collecting portion formed at the lower case. 5. The method of claim 4,
And peripheral through holes are formed in the circumferential filter portion along the longitudinal direction of the circumferential filter portion so that the filtered water can flow into the collecting portion. The method according to claim 1,
Wherein an airtight portion is formed between a lower end portion of the upper case and a lower end portion of the peripheral filter portion. 5. The method of claim 4,
Wherein the water collecting part forms an inclined surface inclined at a preset angle to the discharge part,
And a plurality of spiral grooves are formed on the inclined surface. The method according to claim 1,
Wherein an upper portion of the central filter portion is detachably coupled to an upper end portion of the upper case at a predetermined position. The method according to claim 1,
Wherein the center filter portion is formed in a circular shape in a horizontal section, and the peripheral filter portion is formed in a semicircular shape in a horizontal section. 5. The method of claim 4,
Wherein a peripheral through-hole is formed in the peripheral filter portion, and the peripheral through-hole communicates with the collecting portion. 11. The method of claim 10,
Wherein the central filter portion has a plurality of central through holes spaced around a central inlet formed in the central filter portion. The method according to claim 1,
At least one sub-filter unit is formed on the outer periphery of the peripheral filter unit,
And a hollow sub through hole is formed in the sub filter portion. 13. The method of claim 12,
Wherein the hollow sub through hole has an upper portion closed and a lower portion communicated with a discharge portion of the lower case. The method according to claim 1,
Wherein the center filter portion and the peripheral filter portion are formed in a polygonal cross- 15. The method of claim 14,
Wherein the central filter portion is formed with corner filter portions at each corner. 16. The method of claim 15,
Wherein at least one peripheral through-hole and at least one corner through-hole are formed in the peripheral filter portion and the edge filter portion, respectively. 17. The method of claim 16,
A plurality of rectangular columnar sub-filter units are formed outside the peripheral filter unit,
And a hollow sub through hole is formed in each of the sub filter portions. The method according to claim 1,
Wherein the upper case and the peripheral filter portion increase or decrease in cross-sectional area from the upper portion to the lower portion of the upper case. The method according to claim 1,
Wherein the central filter portion and the plurality of peripheral filter portions are formed of a porous ceramic material. A refrigerator having a filter assembly,
The filter assembly includes:
An upper case formed with an inlet portion;
A lower case detachably coupled to the upper case and having a discharge part;
A central filter portion disposed in the upper case along the longitudinal direction of the upper case and having a hollow central inflow portion therein; And
And a plurality of peripheral filter parts protruding from the outer periphery of the central filter part along the longitudinal direction of the central filter part,
Wherein the plurality of peripheral filter portions are closed at an upper portion and the lower portion communicates with a discharge portion of the lower case. 21. The method of claim 20,
Wherein the central filter portion communicates with the upper case through a grill portion disposed at the upper portion, and the lower portion of the central filter portion is closed. 21. The method of claim 20,
Wherein the inflow portion is formed between an upper end portion of the upper case and an upper end portion of the peripheral filter portion,
Wherein the plurality of peripheral filter portions are closed at an upper portion and the lower portion communicates with a collecting portion formed at the lower case.
KR1020150078803A 2015-06-03 2015-06-03 Filter assembly and refrigerator having the same KR20160142715A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150078803A KR20160142715A (en) 2015-06-03 2015-06-03 Filter assembly and refrigerator having the same

Publications (1)

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KR1020150078803A KR20160142715A (en) 2015-06-03 2015-06-03 Filter assembly and refrigerator having the same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4252885A1 (en) * 2022-03-31 2023-10-04 Liebherr-Hausgeräte Lienz GmbH Refrigeration and/or freezer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4252885A1 (en) * 2022-03-31 2023-10-04 Liebherr-Hausgeräte Lienz GmbH Refrigeration and/or freezer device

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