KR200292958Y1 - Structure for cap combine of a filter for water purifier - Google Patents

Abstract

The present invention relates to a carbon filter (cabon filter) for water purifier.

The present invention is designed to prevent the leakage of activated carbon (carbon) in the filter housing, and to fix the fixed lidena, which is in close contact with the horizontal surface of the cap, by ultrasonic welding, and then the coupling portion of the filter housing and the cap, that is, the inner surface and the coupling portion of the filter housing. By placing an inclined surface of a predetermined angle on the outer surface of the coupling portion of the cap, when the cap is rotated at a high speed and combined with the filter housing, the bonding surface of the filter housing and the cap is made more firmly through the inclined surface, as well as the cap and Even if ultrasonic fusion failure occurs through the fusion coupling of the fixed leads, it prevents the flow of the fixed leads and blocks the external leakage of activated carbon according to the flow, and enables the installation even when the filter is replaced up and down. In order to improve the convenience of installation according to the exchange, while preventing the external leakage of activated carbon as in the conventional It provides the cap coupling structure of the filter for water purifier, which has the same performance while eliminating the increase factor of manufacturing cost generated by installing a separate nonwoven fabric or filling the mat around the support. .

Description

Structure for cap combine of a filter for water purifier

The present invention relates to a carbon filter (cabon filter) for water purifiers, and in particular, to prevent the leakage of activated carbon (carbon) in the filter housing while fixing the fixed lidena close to the horizontal surface of the cap by ultrasonic welding, that is, the coupling portion of the filter housing and the cap When the cap is rotated at a high speed and the filter housing is combined with the filter housing by placing an inclined surface at a predetermined angle on the inner surface of the coupling portion of the filter housing and the outer surface of the coupling portion of the cap, the bonding surface of the filter housing and the cap is more firmly bonded through the slope of the filter housing. In addition, even if ultrasonic fusion failure occurs through the fusion coupling of the cap and the fixed leads, the activated carbon is prevented from leaking to the outside while preventing the flow of the fixed leads, and the installation is performed even when the filter is replaced up and down. Cap coupling structure of the water purifier filter to improve the convenience of installation by replacing the filter It is about.

In general, the water purifier to clean the drinking water can be divided into the faucet attachment type used by directly connecting to the faucet according to its shape, and the table type (non-piping type) that receives water from the glass jar and purifies it during the natural dropping process. According to the water purification method, it can be divided into water direct connection type, natural filtration type, ion exchange resin type, distillation type, reverse osmosis type, ion number type type, etc. As a general rule, natural filtration type, reverse osmosis type, and direct type type are commonly used.

The filtration method is to purify the water supplied from the tap water through a number of filters, such as sedimentation filter, sterilization filter, ion filter, carbon filter, membrane filter, ceramic filter, all of these filters to be built in the water purifier Inlet is provided with an inlet through which the water to be purified flows in and an outlet through which the purified water flows out.

That is, as shown in FIG. 1, the conventional filter structure has an inlet 1 through which water to be purified is introduced into one side of the filter housing 10, and a cap having an outlet 2 so that the purified water can be discharged into the other side ( 20) is composed of a structure that is combined.

In addition, first and second nonwoven fabrics 3a and 3b are fixed to both ends of the filter housing 10 through ultrasonic welding, respectively, and an inlet hole is formed between the first and second nonwoven fabrics 3a and 3b. Activated carbon (carbon) 4 is filled to purify the outflowing water when the water introduced through 1) flows out through the outlet 2.

At this time, one end of the filter housing 10 is formed with a locking jaw (5) for engaging the first nonwoven fabric (3a), the other end in the filter housing 10 while supporting the second nonwoven fabric (3b) The cylindrical support 6 which prevents the activated carbon 4 filled between 1st and 2nd nonwoven fabric 3a, 3b from leaking outside is fixed by ultrasonic welding.

That is, the support 6 is in close contact with the one surface of the second nonwoven fabric 3b is fixed by the ultrasonic fusion method and the circular portion 6a and the inner peripheral surface of the filter housing 10 is fixed by the ultrasonic fusion method In the cylindrical shape consisting of the boss part 6b, the hole 6c which passes the purified water is formed on the surface of the said circular part 6a.

In addition, the third nonwoven fabric 3c for preventing external leakage of the activated carbon 4 is also fixed to the inside of the cap 20 by ultrasonic welding.

At this time, the filter housing 10 and the cap 20 has a structure that is fusion-coupled from the high-speed rotation of the cap 20.

That is, when the cap 20 is coupled to the filter housing 10 while fixedly rotating, heat is generated according to the high speed rotation, and the coupling portions of the cap 20 and the filter housing 10 are melted with each other so that the fusion coupling is performed. It is done.

To this end, at one end of the filter housing 10 (outlet direction), first and second vertical surfaces v1 and v2 and first and second horizontal surfaces h1 and h2 are perpendicular to each other, as shown in FIG. 2. In the cap 20, the third and fourth vertical surfaces v3 and v4 and the third and fourth horizontal surfaces h3 and h4 have a stepped angle to form a right angle.

That is, when the cap 20 rotates at a high speed, the third and fourth vertical surfaces v3 of the cap 20 may be formed as the first and second vertical surfaces v1 and v2 of the filter housing 10. v4) is fused and the third and fourth horizontal surfaces h3 and h4 of the cap 20 are fused to the first and second horizontal surfaces h1 and h2 of the filter housing 10, Fusion coupling of the filter housing 10 and the cap 20 is made.

However, when the cap 20 is thermally fused to the filter housing 10 as described above, conventionally, the first and second horizontal surfaces h1 and h2 and the cap 20 formed on the filter housing 10 are formed. The close contact due to the fusion of the third and fourth horizontal surfaces h3 and h4 is firmly performed, while the first and second vertical surfaces v1 and v2 of the filter housing 10 are perpendicular to the horizontal surface. While the close contact due to the fusion of the third and fourth vertical surfaces v3 and v4 of the cap 20 is not firmly performed, the defect of the cap 20 of the filter housing 10 may be inevitably caused. Have.

In addition, in the conventional filter structure, only the fusion coupling between the filter housing 10 and the cap 20 is made, and a support 6 positioned in the filter housing 10 is formed on the inner circumferential surface of the filter housing 10. Since the ultrasonic fusion is performed only on one surface of the second nonwoven fabric 3b and maintains no coupling relationship with the cap 20, the ultrasonic wave fusion of the support 6 as well as the second nonwoven fabric 3b is performed. Assuming that fusion failure of ultrasonic waves occurs, the second nonwoven fabric 3b as well as the support 6 have a problem of flowing in the filter housing 10, and thus the installation position is changed when the filter is replaced. On the contrary, when the cap 20 is installed to face the ground, the installation position of the filter cannot be changed, such as activated carbon 4 filled in the filter housing 10 leaking to the outside.

In addition, in the related art, in order to block external leakage of activated carbon 4, a separate third nonwoven fabric 3c is ultrasonically fused and fixed in the cap 20, and the manufacturing cost thereof has to be increased.

On the other hand, conventionally, in another embodiment, there is a case in which the structure of the filter as shown in Figure 3 is provided, which is divided into the contact portion of the support 6 and the filter housing 10 to block the external leakage of the activated carbon (4). While filling the trap 7 to prevent external leakage of the activated carbon 4, this also prevents the flow of the support 6 as well as the second nonwoven fabric 3b in case of failure of ultrasonic welding. It does not solve the problems raised in the related art.

Hereinafter, the same parts as in FIG. 1 are denoted by the same reference numerals and description thereof will not be repeated.

Therefore, the present invention has been devised to solve the conventional problems as described above, the object of the present invention is to fix the fixed lidena capable of close contact with the horizontal surface of the cap by ultrasonic welding while blocking the leakage of activated carbon (carbon) in the filter housing. After placing the inclined surface of the filter housing and the cap, that is, the inner side of the coupling portion of the filter housing and the outer side of the coupling portion of the cap, a predetermined angle of inclination, the filter through the inclined surface when the cap is combined with the filter housing at high speed Not only makes the bonding surface of the housing and the cap more securely bonded, but also prevents the flow of the fixed leads by blocking the external leakage of activated carbon due to the flow of the fixed leads even if the ultrasonic fusion defect occurs through the fusion coupling of the cap and the fixed leads. In addition, it is possible to install the product even when the filter is replaced up and down. While improving performance, the same performance is achieved by installing a separate nonwoven fabric in the cap to prevent external leakage of activated carbon as in the prior art, or eliminating the increase in manufacturing cost caused by filling the mat to the periphery of the support. The manufacturing cost is to provide a cap coupling structure of the filter for water purifier to further save.

1 is a schematic cross-sectional view showing a cap coupling structure of the filter for a water purifier in the first embodiment of the prior art.

Figure 2 is an enlarged cross-sectional view of the filter housing and the cap coupling portion in the first embodiment.

Figure 3 is a schematic cross-sectional view showing a cap coupling structure of the filter for a water purifier in a second conventional embodiment.

Figure 4 is a schematic cross-sectional view showing a cap coupling structure of the filter for a water purifier in one embodiment of the present invention.

Figure 5 is an enlarged cross-sectional view of the filter housing and the cap coupling portion as an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

One ; Inlet 2; Outlet

3a, 3b; First and second nonwoven fabrics 4; Activated carbon

10; Filter housing d1; First slope

v1; First vertical plane h1, h2; 1,2 horizontal plane

20; Cap d2; Second slope

v3; Third vertical plane h3, h4; 3rd and 4th horizontal plane

30; Fixed lidena 31; Circle

32; An outer first boss portion 33; Inner second boss part

33a; pipeline

Hereinafter, a preferred embodiment of the present invention based on the accompanying drawings.

For reference, the drawings referred to below will be described with the same reference numerals for the same parts as in the prior art for convenience of description.

Figure 4 is a schematic cross-sectional view showing a cap coupling structure of the filter for a water purifier as an embodiment of the present invention, Figure 5 is an enlarged cross-sectional view of the filter housing and the cap coupling portion as an embodiment of the present invention.

As shown in FIGS. 4 and 5, the first and second nonwoven fabrics 3a and 3b are fixed by ultrasonic welding at both ends in the filter housing 10 having the inlet 1, respectively. Between the two non-woven fabrics (3a) (3b) is filled with activated carbon (carbon) (4) for purifying the water introduced through the inlet (1), the other end of the filter housing 10 is purified by activated carbon (4) In the filter for fusion-bonding the cap 20 having the outlet (2) to the high-speed rotation method so that the water is discharged,

The other end of the filter housing 10 is ultrasonically fused to the inner circumferential surface of the circular portion 31 and the filter housing 10 which is ultrasonically fused to one surface of the second nonwoven fabric 3b to block external leakage of the activated carbon 4. The fixed lid 30 which consists of the outer side 1st boss part 32 and the inner side 2nd boss part 33 which has the pipeline 33a is fixed,

End surfaces of the first and second bosses 32 and 33 are positioned on the same line as the second horizontal surface h2 of the filter housing 10 to be described later.

On the inner side of the other end of the filter housing 10, a first vertical surface v1 and first and second horizontal surfaces h1 and h2 are formed with a step, but the first and second horizontal surfaces h1 and h2 are formed. In between the first inclined surface (d1) to form a predetermined angle,

A third vertical surface v3 and third and fourth horizontal surfaces h3 and h4 are formed on the outer surface of the cap 20 with a step difference, and the fourth horizontal surface h4 is a high speed rotation of the cap 20. The width of the wider to be bonded to the end surface of the first boss portion 32 formed in the fixed molder (30) by thermal fusion from,

Between the third and fourth horizontal surfaces h3 and h4, a second inclined surface d2 having a predetermined angle to maintain a tight contact state by thermal fusion with the first inclined surface d1 of the filter housing 10 is formed. Characterized by forming.

Referring to Figures 4 and 5 attached to the operation of one embodiment of the present invention configured as described above are as follows.

First, the first and second nonwoven fabrics 3a and 3b are fixed to the both ends of the filter housing 10 by ultrasonic fusion, respectively, while the inlet opening is formed between the first and second nonwoven fabrics 3a and 3b. When the water introduced through 1) is discharged through the outlet (2) is filled with activated carbon (carbon) (4) to purify the outflowing water.

Here, the first nonwoven fabric (3a) is to be locked to the locking jaw (5) formed at one end in the filter housing 10, so that the fixed state according to the ultrasonic welding is firmly made.

Thereafter, the other end of the filter housing 10 has a circular portion 31 and an outer first to prevent leakage of activated carbon 4 filled between the first and second nonwoven fabrics 3a and 3b. The fixed lid 30 composed of the second boss portion 33 on the inner side having the boss portion 32 and the conduit 33a is firmly fixed.

That is, the circular portion 31 is firmly fixed to one surface of the second nonwoven fabric 3b by an ultrasonic fusion method, and the outer first boss portion 32 is ultrasonically fixed to the inner circumferential surface of the filter housing 10. Fix tightly by fusion method.

Here, the end surfaces of the first and second bosses 32 and 33 are lengthened so as to be located on the same line as the second horizontal surface h2 of the filter housing 10.

On the other hand, the other end inner surface of the filter housing 10 is formed with a step between the first vertical surface (v1) and the first and second horizontal surface (h1) (h2), the first and second horizontal surface (h1) ( A first inclined surface d1 having a predetermined angle is formed between h2).

In addition, a third vertical surface v3 and third and fourth horizontal surfaces h3 and h4 are formed on the outer surface of the cap 20 with a step difference, and the fourth horizontal surface h4 is a cap 20. From the high-speed rotation of the width of the width is configured to be bonded to the end surface of the first boss portion 32 formed in the fixed molder (30) by thermal fusion.

In addition, between the third and fourth horizontal surfaces (h3, h4), the second inclined surface (d2) to form a predetermined angle so as to maintain a firm contact state by thermal fusion with the first inclined surface (d1) of the filter housing 10 ).

Then, when the cap 20 is rotated at a high speed to insert into the other end of the filter housing 10, due to the heat generated from the high-speed rotation of the cap 20,

When the first vertical surface v1 of the filter housing 10 and the third vertical surface v3 of the cap 20 are tightly fixed to each other by thermal fusion, the first inclined surface d1 and the cap of the filter housing 10 are fixed. The second inclined surface d2 of 20 maintains a tight close fixed state by thermal fusion with each other.

In addition, when the first and second horizontal surfaces h1 and h2 formed in the filter housing 10 and the third and fourth horizontal surfaces h3 and h4 formed in the cap 20 are thermally fused, the first and second horizontal surfaces h1 and h4 are formed. 4 The horizontal surface (h4) is also fused to the surface of the first boss portion 32 formed in the fixed molder (30),

The filter housing 10 and the cap 20 can be maintained in a firm coupling state.

That is, the present invention, when the cap 20 is rotated at a high speed and the coupling is made by the filter housing 10 and the heat fusion method, the filter housing 10 and the first and second inclined surfaces d1 and d2 are coupled to each other. Bonding surface of the cap 20 is characterized in that more securely made.

In addition, since the fourth horizontal surface (h4) of the cap 20 and the first boss portion 32 of the fixed molder 30 maintains a tight contact state through thermal fusion bonding, the ultrasonic wave of the fixed leader 30 Even if fusion defect occurs, the flow of the fixed molder 30 does not occur, so that external leakage of activated carbon 4 filled in the first and second nonwoven fabrics 3a and 3b may be blocked. .

On the other hand, the present invention is due to the rigid coupling state of the filter housing 10 and the cap 20, even if the installation direction of the filter is made up and down, it is possible to prevent the external leakage of the activated carbon (4), It is characterized by promoting the convenience of its installation.

As described above, the cap coupling structure of the filter for water purifier of the present invention is to fix the fixed lidena which can be in close contact with the horizontal surface of the cap by ultrasonic welding while blocking the leakage of activated carbon (carbon) in the filter housing, that is, the coupling portion of the filter housing and the cap. By placing an inclined surface of a predetermined angle on the inner surface of the coupling portion of the filter housing and the outer surface of the coupling portion of the cap, when the cap is rotated at a high speed and combined with the filter housing, the bonding surface of the filter housing and the cap is bonded through the inclined surface. Not only makes it firm, but also prevents the flow of fixed leads by the fusion coupling of the cap and the fixed leads to prevent the flow of fixed leads and blocks the external leakage of activated carbon according to the flow. It is possible to install the product even in the state, thereby improving the convenience of installation due to the replacement of the filter. In order to prevent external leakage of activated carbon, it is possible to reduce the manufacturing cost while maintaining the same performance by installing a separate nonwoven fabric in the cap or eliminating the increase in manufacturing cost caused by filling the mat to the periphery of the support. To provide.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

Fixing the first and second nonwoven fabrics by ultrasonic welding at both ends in the filter housing having the inlet, and filled with activated carbon for purifying the water introduced through the inlet between the first and second nonwoven fabrics, the other end of the filter housing A filter for fusion-bonding a cap having an outlet to a high speed rotation method so that water purified by At the other end of the filter housing, a circular portion ultrasonically fused to one surface of the second nonwoven fabric to block external leakage of activated carbon, an outer first boss portion ultrasonically fused to the inner circumferential surface of the filter housing, and an inner second having a pipeline Fix the fixed lidena consisting of the boss, End faces of the first and second boss parts are positioned on the same line as the second horizontal plane of the filter housing, which will be described later. The other end inner surface of the filter housing is formed with a step between the first vertical surface and the first and second horizontal surfaces, with a first inclined surface forming a predetermined angle between the first and second horizontal surfaces, The outer surface of the cap is formed with a step between the third vertical surface and the third and fourth horizontal surface, the fourth horizontal surface is the width so as to bond by heat fusion to the end surface of the first boss portion formed on the fixed lid from the high-speed rotation of the cap Make it wider, Cap coupling structure of the filter for water purifier, characterized in that between the third and fourth horizontal plane is formed a second inclined surface to form a predetermined angle so as to maintain a firm contact state by the first inclined surface of the filter housing and the heat sealing.