KR20190103837A - Filter Module for Filtering Micro Dust of Purifier - Google Patents

Abstract

The present invention relates to a fine particle prevention filter module of a water purifier, and disposed in a downstream of the carbon filter to filter the fine dust generated in the process of passing through the carbon filter of the water purifier, the fine filtration filter for filtering the fine dust in a cylindrical shape By passing water radially from the outside to the center side and fine dust is filtered, it is possible to miniaturize the overall size and improve the filtration efficiency, and to separate the top and bottom of the fine filtration filter inside the filter housing By tightly bonding by grooves and binding projections, water can be prevented from passing through the upper and lower outer spaces of the fine filtration filter, so that fine dust can be filtered through the entire water introduced therein, and the filtration performance can be further improved. Incline the inner peripheral surface of the filter housing or form a separate temporary storage chamber. In addition, the flow of incoming water can be more smoothly and stabilized, and accordingly, the water flow can be stably maintained through the minimum flow space, so that the overall size can be reduced and the fineness of the water purifier can be enhanced. Provides anti-filter module.

Description

Filter module for filtering micro dust of purifier

The present invention relates to a filter for preventing fine powder of a water purifier. More specifically, the fine dust generated in the process of passing downstream of the carbon filter and passing through the carbon filter of the water purifier can be filtered, and the fine filtration filter for filtering the fine dust has a cylindrical shape, and water is radially from the outside to the center side. By allowing the fine dust to be filtered, the overall size can be downsized and the filtration efficiency can be improved, and the upper and lower ends of the fine filtration filter are tightly bonded by separate concave grooves and coupling protrusions inside the filter housing. To prevent the passage of water to the upper and lower outer spaces of the fine filtration filter, which can filter fine dusts over the entire water introduced therein, further improve the filtration performance, and incline the inner peripheral surface of the filter housing; or By forming a separate temporary storage chamber, the incoming water flow is more smooth. It is possible to stabilize at the same time, and thus to maintain a stable flow of water through the minimum flow space, and to reduce the overall size and at the same time relates to the anti-derivative filter module of the water purifier that can enhance the stability.

In recent years, due to the rapid industrial development, environmental pollution is getting worse. Among them, water pollution reaches a serious level, and in many places such as homes and government offices, water is purified and drinking as drinking water.

As such, a device for treating water and supplying it to drinking water is generally used as a water purifier for supplying cold water and hot water after purifying raw water supplied through a water pipe.

1 is a block diagram conceptually showing a configuration of a general water purifier according to the prior art.

The water purifier is generally equipped with a water supply valve V to open and close the supply of raw water on a water supply pipe Q through which raw water is supplied, and this water supply pipe Q is connected to the water filter 20. In the water filter 20, a plurality of filter devices may be selected so that a filtering process such as removing suspended substances, deodorizing, and sterilizing bacteria causing waterborne diseases may be performed, including suspended solids mixed in raw water. Mainly applied to the sediment filter (21), pre-carbon filter (22), hollow fiber membrane filter (UF: Ultra Filter) / reverse osmosis (Reverse Osmosis) (23), Post-Carbon Filters 24 and the like are used.

The purified water passing through the water filter 20 is supplied to the storage tank 40 through the connection pipe (P), is supplied to the cold water tank 30 and the hot water tank 50 from the storage tank 40, respectively, 30 and the hot water tank 50 are respectively connected to the water intake cock 70 through the water intake pipe 73. The water intake coke 70 may be separately formed into a cold water intake coke 71 and a hot water intake coke 72.

Such a water purifier is always kept in a state in which the purified water is stored in the storage tank 40, and in this state, if the cold water or hot water is withdrawn by the intake coke 70, the purified water is stored in the cold water tank 30 and the hot water tank ( 50) to have a supplemental supply. At this time, the hot water tank 50 is formed with an air vent (not shown) in communication with the outside air for the internal pressure discharge.

On the other hand, although not shown, the purified water passing through the water filter is supplied to the cold water tank through the connecting pipe and then supplied to the hot water tank from the cold water tank, the cold water tank and the hot water tank is configured in such a way that is connected to the intake coke through the intake pipe, respectively. Sometimes.

Regardless of the internal structure of the water purifier, a water filter 20 is necessarily provided to purify raw water. As described above, the water filter 20 includes four filters including a sediment filter 21, a pre carbon filter 22, a hollow fiber membrane filter / reverse osmosis filter 23, and a post carbon filter 24. The raw water is filtered through the filters in order. The sediment filter removes large particles of foreign matter such as sand and soil mixed in raw water, and the free carbon filter and post carbon filter remove chemicals and odor-causing substances that are harmful to the human body through activated carbon adsorption. Desert filters or reverse osmosis filters remove even the smallest contaminants.

At this time, the post carbon filter is disposed at the last position of the water filter so as to remove various harmful chemicals and odor causing components and improve the purified water taste. However, since the post carbon filter is made of fine carbon powder, fine dust flows out like carbon powder in the process of passing water, causing unsanitary aspects to the user, or fine dust in functional parts such as solenoid valves and water reservoirs. This can cause problems such as defective or leaking functional parts.

Since the fine dust flowing out of the carbon filter is mainly discharged at the beginning of use, a separate cleaning process is required before the carbon filter is used, but when the cleaning is inadequate, the same problem occurs, and a separate nonwoven fabric is used inside the filter. Even if there is a problem that can not remove the fine dust.

Domestic Patent No. 10-0488807

The present invention is invented to solve the problems of the prior art, an object of the present invention is to arrange the downstream of the carbon filter to filter the fine dust generated in the process of passing through the carbon filter of the water purifier, and to filter the fine dust The fine filtration filter has a cylindrical shape so that water passes radially from the outside to the center, and fine dust is filtered to provide a fine filter for preventing fine powder of the water purifier that can reduce the overall size and improve the filtration efficiency. .

Another object of the present invention is to close the upper and lower ends of the fine filtration filter by a separate concave groove and the engaging projection in the interior of the filter housing, thereby preventing water from passing through the upper and lower outer space of the differential filtration filter inside The present invention provides a filter for preventing fine dust of the water purifier, which can filter fine dust on all of the water introduced into the furnace and further improve the filtration performance.

Still another object of the present invention is to incline the inner circumferential surface of the filter housing or to form a separate temporary storage chamber, thereby making it possible to more smoothly and stabilize the flow of the incoming water, thereby reducing the flow of water through the minimum flow space. It is to provide a filter for preventing fine powder of the water purifier that can be kept stable and can reduce the overall size and enhance stability.

In the present invention, in the fine dust prevention filter module of the water purifier disposed downstream of the post carbon filter to pass the water passed through the post carbon filter of the water purifier to filter fine dust, the water inlet is formed so that water is obtained on the lower side. A hollow pillar-shaped filter housing in which a water extraction portion is formed so that water is withdrawn on the upper side; A differential filtration filter mounted inside the filter housing in a hollow cylindrical shape, the outer circumferential surface of the filter housing being spaced apart from the inner circumferential surface of the filter housing, and the inner space being in communication with the water outlet; And a filter cap coupled to a lower end of the fine filtration filter, the water flowing into the space inside the filter housing through the water inlet to be led to a space between the outer circumferential surface of the fine filtration filter and the inner circumferential surface of the filter housing. Water introduced into the filter housing internal space through the water inlet is provided to prevent the differential filter module of the water purifier, characterized in that the water flowing out through the fine filtration filter from the outside to the water outlet.

The filter housing may include a housing main body in which the water extraction part is formed at the upper center in the form of a hollow pillar having an open lower surface, and a housing cover coupled to the open lower surface of the housing main body and in which the inlet is formed in the lower center. The filter cap may be seated and fixed to an inner upper surface of the housing cover while being coupled to the lower end of the fine filtration filter.

In addition, a cylindrical guide portion may be formed to protrude from the upper inner surface of the filter housing and the upper surface of the filter cap so that the upper and lower inner circumferential surfaces of the differential filtration filter are respectively inserted into and guided.

In addition, concave grooves are formed in the upper and lower surfaces of the fine filtration filter along the circumferential direction, and the upper inner surface of the filter housing and the upper surface of the filter cap may be closely inserted into the concave groove of the differential filtration filter. Coupling protrusions may be formed along the circumferential direction so that the protrusions are formed.

In addition, the filter cap is formed with a separation protrusion protruding downward on the lower surface of the filter cap so that the lower surface of the filter cap is spaced apart from the upper surface of the housing cover, the water introduced into the filter housing inner space through the water inlet It may be configured to flow through the space between the lower surface of the filter cap and the upper surface of the housing cover formed by the spacing projections to the space between the outer peripheral surface of the differential filtration filter and the inner peripheral surface of the filter housing.

In addition, the upper surface of the housing cover may be formed a temporary storage chamber of the recessed shape along the outer periphery of the inlet portion.

In addition, the inner circumferential surface of the filter housing may be formed to be inclined in the form of increasing diameter toward the lower side, so that the interval between the outer circumferential surface of the fine filtration filter increases toward the lower side.

According to the present invention, the fine dust generated in the process of passing downstream of the carbon filter and passing through the carbon filter of the water purifier can be filtered, and the fine filtration filter for filtering the fine dust has a cylindrical shape, and water is radiated from the outside to the center side. By passing in the direction and fine dust is filtered, it is possible to miniaturize the overall size and to improve the filtration efficiency.

In addition, by closely coupling the upper and lower ends of the fine filtration filter by separate concave grooves and engaging projections inside the filter housing, the water flowing into the upper and lower outer space of the fine filtration filter is prevented from passing through. Fine dust can be filtered over the whole, and the filtration performance can be further improved.

In addition, by inclining the inner circumferential surface of the filter housing or by forming a separate temporary storage chamber, the flow of incoming water can be smoothed and stabilized at the same time, and thus the water flow can be stably maintained through the minimum flow space. There is an effect that can reduce the overall size and enhance the stability at the same time.

1 is a block diagram conceptually showing a configuration of a general water purifier according to the prior art;
2 is a block diagram conceptually illustrating a configuration of a water purifier provided with a filter for preventing differentiation according to an embodiment of the present invention;
Figure 3 is a perspective view schematically showing the appearance of the anti-differential filter module according to an embodiment of the present invention,
4 is an exploded perspective view schematically showing a detailed configuration of a filter for preventing fine powder according to an embodiment of the present invention;
5 is a cross-sectional view schematically showing an internal structure of a filter for preventing fine powder according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a partial region in the cross-sectional view of FIG. 5.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

FIG. 2 is a block diagram conceptually illustrating a configuration of a water purifier provided with an anti-derivative filter module according to an embodiment of the present invention, and FIG. 3 schematically illustrates an appearance of an anti-differential filter module according to an embodiment of the present invention. 4 is an exploded perspective view schematically showing a detailed configuration of an anti-derivative filter module according to an embodiment of the present invention, and FIG. 5 is an internal structure of an anti-differential filter module according to an embodiment of the present invention. 6 is a cross-sectional view schematically illustrating a portion of the cross-sectional view of FIG. 5.

The fine dust prevention filter module 80 of the water purifier according to an embodiment of the present invention is disposed downstream of the post carbon filter 24 so that water passing through the post carbon filter 24 of the water purifier is filtered. As a result, the fine dust such as carbon powder generated by the carbon filter 24 is filtered to prevent the fine dust from flowing into the cold water tank or the storage tank 40.

Such a fine powder preventing filter module 80, as shown in Figures 3 to 5 is configured to include a filter housing 100, a fine filtration filter 200, and a filter cap 300.

The filter housing 100 has a hollow pillar shape and an accommodating space is formed therein, and an inlet portion 130 is formed at a lower side thereof so that water passing through the post carbon filter 24 is received into the inner space, and an upper space thereof is formed as an inner space. Water extraction unit 140 is formed so that the obtained water is withdrawn. The filter housing 100 is coupled to the housing main body 110 having a water outlet 140 formed at the upper center in the form of a hollow pillar having an open lower surface, and opened at the lower center of the housing main body 110. It may be configured to include a housing cover 120 in which the part 130 is formed, the housing body 110 and the housing cover 120 is completely sealed by heat fusion, such as after inserting all the parts placed therein Can be combined.

The water inlet 130 formed at the bottom of the filter housing 100 may be formed in a structure capable of easily inserting and disconnecting a connection hose connected to the post carbon filter 24 and the like, and the water outlet formed at the top of the filter housing 100. The unit 140 may be formed in a pipe shape that protrudes upward in a form that can be easily separated from a purified water tank, a cold water tank, a hot water tank, and various functional parts. The inlet 130 may be inserted into the inlet port 131 in the form of a hollow tube protruding downward from the bottom center of the housing cover 120 and the inlet port 131 to fit and insert a connection hose (not shown). The inclined body 132 inserted and coupled to the inlet port 131 in a form surrounding the outside of the collet 133 to prevent separation of the collet 133 and the collet 133 from the inlet port 131 is formed so that It can be configured to include. When the collet 133 moves together with the connection hose in the direction from which the inlet port 131 is drawn out, the collet 133 is engaged by the inclined surface of the inclined body 132, and the extraction is prevented. Although the operator can easily insert the connection hose into the inlet 130 according to the structure of the inlet 130, the inlet 130 is inserted so long as the pressing force on the collet 133 does not act It is not separated from. Therefore, fitting work such as a connection hose to the inlet 130 may be easily performed.

The fine filtration filter 200 is a filter capable of filtering the fine dust contained in the water passing through the carbon filter 24, is mounted inside the filter housing 100 in a hollow cylindrical shape, the outer peripheral surface of the filter housing 100 The inner space is spaced apart from the inner space is disposed in communication with the water outlet 140.

The filter cap 300 is coupled to the lower end of the fine filtration filter 200, and the water introduced into the internal space of the filter housing 100 through the inlet 130 receives the outer circumferential surface of the fine filtration filter 200 and the filter housing 100. It is formed to guide the space between the inner circumferential surface of. The filter cap 300 is fixed to the inner upper surface of the housing cover 120 in a state coupled to the lower end of the fine filtration filter 200.

In this case, cylindrical guide parts 112 and 320 protrude from the upper inner surface of the filter housing 100 and the upper surface of the filter cap 300 so that the upper and lower inner circumferential surfaces of the hollow differential filtration filter 200 are respectively inserted and guided. The position of the differential filtration filter 200 is guided by the cylindrical guide parts 112 and 320 so as to be fixed in a fixed position.

According to such a structure, water introduced into the filter housing 100 through the inlet 130 is passed through the fine filtration filter 200 from the outside toward the center side, and is discharged to the outlet 140. That is, the water introduced into the interior of the filter housing 100 through the inlet 130 is guided to the space between the outer circumferential surface of the fine filtration filter 200 and the inner circumferential surface of the filter housing 100 by the filter cap 300, Thereafter, in the space between the outer circumferential surface of the fine filtration filter 200 and the inner circumferential surface of the filter housing 100, the fine filtration filter 200 passes through the fine filtration filter 200, and then enters the internal space of the fine filtration filter 200. Water is discharged through the water extraction unit 140 from the internal space of the). Water passing through the carbon filter 24 and containing the fine dust is fine dust is filtered in the process of passing the fine filtration filter 200 from the outside toward the center side, the water extraction unit 140 in the state that the fine dust is filtered It is withdrawn through. Therefore, after the purified water is introduced into the cold water tank or the water storage tank 40, all of the fine dust is introduced in a state of being removed.

On the other hand, the filter cap 300 is formed with a plurality of separation projections 330 protruding downward on the lower surface of the filter cap 300 so that the lower surface of the filter cap 300 is spaced apart from the upper surface of the housing cover 120, The water introduced into the internal space of the filter housing 100 through the inlet 130 is passed through the space between the lower surface of the filter cap 300 formed by the spaced protrusion 330 and the upper surface of the housing cover 120 to differentiate the filtration filter. It flows into the space between the outer peripheral surface of the 200 and the inner peripheral surface of the filter housing 100. As the flow path of the water is formed in this form, the water flows through the fine filtration filter 200 in the radial direction from the outside to the center direction, thereby stably performing the filtration function for the fine dust.

In addition, concave grooves 210 are formed along the circumferential direction on the upper and lower surfaces of the differential filtration filter 200, and the differential filtration filter on the upper inner surface of the filter housing 100 and the upper surface of the filter cap 300. Coupling protrusions 111 and 310 are formed along the circumferential direction so as to be inserted into the concave groove 210 of the 200.

According to this structure, all the water introduced into the filter housing 100 through the inlet 130 passes through the fine filtration filter 200, so that fine dust can be more completely removed.

That is, as shown in FIG. 5 and FIG. 6, the water introduced through the inlet 130 passes through a space between the lower surface of the filter cap 300 and the upper surface of the housing cover 120 to provide the fine filtration filter 200. After flowing into the space between the outer circumferential surface and the inner circumferential surface of the filter housing 100, the fine filtration filter 200 passes in a radial direction from the outside to the center direction, and fine dust is filtered. At this time, the upper and lower ends of the differential filtration filter 200 are in contact with the inner upper surface of the housing body 110 and the upper surface of the filter cap 300, respectively, if the contact state thereof is not sealed, the differential filtration filter 200 Water outside the) is introduced into the center side of the fine filtration filter 200 through a space between the lower end of the fine filtration filter 200 and the upper surface of the filter cap 300, for example. In this way, if water does not pass through the fine filtration filter 200 and flows into the center side along the outer spaces (spaces between the outer walls) at the top and bottom thereof, since water is not filtered, fine dust is not filtered and finely divided. After flowing into the center of the filtration filter 200 may be withdrawn to the water outlet 140. Therefore, in one embodiment of the present invention, the concave groove 210 is formed at the top and bottom of the fine filtration filter 200, and the fine filtration on the upper inner surface of the filter housing 100 and the upper surface of the filter cap 300. By forming coupling protrusions 111 and 310 which can be inserted into the concave groove 210 of the filter 200, the water is finely divided by preventing the passage of water by the close coupling of the coupling protrusions 111 and 310 and the concave groove 210. Pass through the filtration filter 200.

In this case, a separate sealing pad member (not shown) may be attached to an outer surface of the coupling protrusions 111 and 310 to reinforce the sealing function by the close coupling between the coupling protrusions 111 and 310 and the concave groove 210.

In addition, as described above, the cylindrical guide portions 112 and 320 formed on the upper inner surface of the filter housing 100 and the upper surface of the filter cap 300 also come into intimate contact with the inner circumferential surface of the fine filtration filter 200, such a sealing function. Can be performed.

Meanwhile, as shown in FIGS. 5 and 6, the inner circumferential surface of the filter housing 100 is formed to be inclined in a form of increasing diameter toward the lower side where the water inlet 130 is formed, so as to be in contact with the outer circumferential surface of the fine filtration filter 200. The gap is formed to increase toward the lower side.

That is, the inner circumferential surface of the housing main body 110 of the filter housing 100 is formed to be inclined such that the inner circumferential surface has an inclination angle θ so that the inner diameter increases toward the lower side as shown in FIGS. 5 and 6. The interval between the fine filtration filter 200 and the interval d2 on the lower side is larger than the interval d1 on the upper side.

According to such a structure, the water introduced into the interior through the inlet 130 is larger in the lower space in the process of flowing into the space between the outer circumferential surface of the fine filtration filter 200 and the inner circumferential surface of the filter housing 100, and thus becomes smaller toward the top. Since the flow rate is relatively smooth from the lower side, the resistance is reduced during the flow process, so that the upper side can flow smoothly. In particular, through this structure it is possible to minimize the smooth flow space of the water can be further miniaturized the size of the filter filter module.

In addition, a temporary storage chamber 121 having a concave recessed shape along the outer circumference of the inlet 130 may be formed on an upper surface of the housing cover 120 in which the inlet 130 is formed. Since the temporary storage chamber 121 is formed, the water introduced into the inlet 130 flows to the outside of the fine filtration filter 200 in a state of being temporarily stored in the temporary storage chamber 121, so that the water is provided in the inlet unit ( The flow resistance may be reduced in the space between the lower surface of the filter cap 300 and the flow rate of the water by the temporary storage chamber 121 while buffering the flow of water. In addition, the space between the filter cap 300 and the housing cover 120 can be further reduced by the temporary storage chamber 121, thereby further miniaturizing the size of the total anti-differential filter module.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: filter housing
110: housing body
111: engaging projection 112: cylindrical guide portion
120: housing cover
130: acquisition unit 140: extraction unit
200: differential filtration filter
210: concave groove
300: filter cap
310: engaging projection 320: cylindrical guide portion
330: spacing

Claims (7)

In the fine dust prevention filter module of the water purifier which is disposed downstream of the post carbon filter so as to pass the water passing through the post carbon filter of the water purifier to filter fine dust,
A hollow pillar-shaped filter housing having an inlet portion formed to receive water at a lower side thereof, and a outlet portion formed at an upper side thereof so that water is withdrawn;
A differential filtration filter mounted inside the filter housing in a hollow cylindrical shape, the outer circumferential surface of the filter housing being spaced apart from the inner circumferential surface of the filter housing, and the inner space being in communication with the water outlet; And
A filter cap coupled to a lower end of the fine filtration filter and configured to guide water introduced into the filter housing internal space through the water inlet into a space between an outer circumferential surface of the fine filtration filter and an inner circumferential surface of the filter housing
And the water introduced into the filter housing internal space through the water inlet part is passed through the differential filtration filter from the outside to the center side and is discharged to the water outlet part.
The method of claim 1,
The filter housing
A housing cover in which the water outlet is formed at the center of the upper end in the form of a hollow pillar having an open lower surface, and a housing cover coupled to the open bottom of the housing body and formed at the center of the lower end;
And the filter cap is seated and fixed to an inner upper surface of the housing cover while being coupled to a lower end of the fine filtration filter.
The method of claim 2,
And a cylindrical guide portion protruding from the upper inner surface of the filter housing and the upper surface of the filter cap so that the upper and lower inner circumferential surfaces of the differential filtration filter are respectively inserted into and guided from each other.
The method of claim 2,
Concave grooves are formed along the circumferential direction on the top and bottom surfaces of the fine filtration filter,
Coupling preventing filter module of the water purifier, characterized in that the engaging projection is formed in the circumferential direction so that the upper inner surface of the filter housing and the upper surface of the filter cap can be inserted in close contact with the concave groove of the fine filtration filter.
The method of claim 4, wherein
The filter cap has a spaced protrusion projecting downward on the bottom surface of the filter cap so that the bottom surface of the filter cap is spaced apart from the top surface of the housing cover,
Water introduced into the filter housing inner space through the water inlet portion passes through a space between the lower surface of the filter cap formed by the spacer protrusion and the upper surface of the housing cover, thereby forming a space between the outer circumferential surface of the differential filtration filter and the inner circumferential surface of the filter housing. Differential filter module for water purifier, characterized in that flowing to the.
The method of claim 5,
The upper surface of the housing cover is a differential filter module of the water purifier, characterized in that the temporary storage chamber of the concave shape is formed along the outer periphery of the water inlet.
The method according to any one of claims 1 to 6,
The inner circumferential surface of the filter housing is formed to be inclined in the form of increasing the diameter toward the lower side so that the distance between the outer peripheral surface of the fine filtration filter increases toward the lower side, characterized in that the finer filter module of the water purifier.

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