KR100551562B1 - Fixing means and making method of water cooling device - Google Patents

Abstract

The present invention relates to a fixing means of the water cooling device and a method of manufacturing the same, and an object thereof is to improve the coupling structure of the cooling coil and the fixing means built in the water storage tank to prevent leakage by restricting the flow of the cooling coil and In addition, to improve the cooling efficiency. According to the constitution of the present invention for achieving the above object, the fixing means of the water cooling device is a through-hole through which the end of the cooling coil penetrates in the center and the body is formed with a male thread on the outer circumference so that the nut is formed in the inner circumference; Is formed integrally with the lower end of the body and comprises a nipple consisting of an outward flange coupled to the lower surface of the upper plate, and the bush is coupled to the end of the cooling coil and fitted into the through hole formed in the nipple body, The through hole is formed in a polygonal shape and the bush is inserted into a circular ring at the end of the cooling coil and press-molded into a polygon through a press to correspond to the through hole. It is fitted with a bush of a polygon coupled to the hook and caught on the locking jaw formed on the top of the body is limited in flow Through the sealing member provided at the lower end there is a leakage also capable of preventing effect.

Chiller, Cooling Coil, Fixture, Nipple, Bush

Description

Fixing means of water chiller and manufacturing method thereof {FIXING MEANS AND MAKING METHOD OF WATER COOLING DEVICE}

1 is a cross-sectional view showing a structure in which a cooling coil of a water cooling apparatus used in a conventional water purifier is coupled to a water storage tank by a fixing member.

Figure 2 is a cross-sectional perspective view showing a coupling state of the cooling coil and the fixing means of the water cooling apparatus according to the present invention.

Figure 3 is an exploded perspective view showing an extract of the cooling coil and the fixing means of the water cooling apparatus according to the present invention.

4 is an enlarged view of part IV of FIG. 2, illustrating a fixing structure of a cooling coil and a connection structure thereof;

5 is a cross-sectional view taken along the line "V"-"V" of FIG. 3.

6 is a manufacturing process flow chart of the water cooling device fixing means according to the present invention.

Explanation of symbols on the main parts of the drawings

100 .. Storage Tank 120 .. Cooling Coil

130 .. Nipple 140 .. Refrigeration cycle piping

151 .. Rubber Packing 160. Nut

170 .. BUSH 180 .. Fixture

 The present invention relates to a water cooling device used for a water purifier, and more particularly, to improve the coupling structure of the cooling coil and the fixing means built in the water storage tank to restrict the flow of the cooling coil to prevent leakage and cooling It is to improve the efficiency.

In general, the water purifier allows the user to drink clean drinking water by filtering foreign substances contained in the water, and the water cooling device using the cooling coil and the water heating device using the electric heater are installed.

The water cooling apparatus used in the conventional water purifier includes a water storage tank for storing water, a cooling coil accommodated in the water storage tank to cool the water, and both ends of which extend through the upper plate of the water storage tank to the outside, A fixing member for fixing both ends to the upper plate of the water storage tank is provided.

However, the conventional fixing member for firmly fixing the cooling coil to the water storage tank has a body portion 12 is formed with a female screw 15, as shown in Figure 1, the head portion formed integrally with the body portion 12 After passing through the cooling coil 8 connected to the copper pipe 7 in the lower part of the through-hole 16 of the fixing member 10 made of a (14), and the silicone resin-based sealing member 18 is provided to the cooling In order to secure the coil (8) and the top plate (2) of the water storage tank and at the same time to prevent the leakage phenomenon, the cooling coil (8) and the copper pipe (7) is connected to the fixing member (10) The structure is shown to be solid, but in practice, the smell of the sealing member 18 is not only caused by corrosion of the sealing member 18, but also the cooling coil 8 and the copper pipe 7 are rotated from the fixing member 10. Due to the flow of these Is released from the state there is a problem that leakage occurs.

As described above, the fixing member 10 of the conventional water cooling apparatus includes a plurality of sealing members 18, a pair of press-fitting sleeves 6, and rubber packings 4 attached to the fixing members 10, as described above. Since the components had to be combined, there was an inconvenience in the process for the connection work, and thus, there was a problem that the work time was delayed.

Therefore, to solve such a problem, the object of the present invention is to improve the structure of the cooling coil and the fixing means to securely install them by preventing the flow of the cooling coil to prevent leakage, in particular, water purifier It is to provide a fixing means of the water cooling device used for.

In addition, another object of the present invention is to provide a method for manufacturing the fixing means of the above-described water cooling device in a simple working process.

The present invention for achieving this object is;

Water storage tank, the water storage tank is arranged in the water storage tank and the evaporator, and the fixing means is installed on the top plate of the water storage tank so that the end of the cooling coil extends through the water storage tank In the fixing means of the water cooling device equipped with,

The fixing means has a through hole through which the end of the cooling coil penetrates in the center and is integrally formed at the lower end of the body and the body having a male thread on the outer circumference so that a nut having a female thread on the inner circumference is coupled to the lower surface of the upper plate. It is characterized in that it comprises a nipple made of an outward flange, which is coupled to a predetermined end of the cooling coil and fitted into the through hole to secure the coupling between the cooling coil and the nipple.

In addition, the upper end of the body is formed with a locking jaw formed with a circular through hole to limit the flow of the bush, between the outward flange and the cooling coil is provided with a sealing member for ensuring the mutual coupling and at the same time to prevent leakage It is characterized by.

In addition, the through hole is made of a polygonal shape, the bush is characterized in that the compression molded in a polygonal shape so as to correspond to the through hole after being fitted with a circular ring at the end of the cooling coil.

In addition, the polygonal shape is characterized in that the square.

And the fixing means of the water cooling device manufacturing method;

A compression bushing step S1 of inserting a circular bush BUSH into a predetermined end of the spirally bent cooling coil through a banding machine and then pressing and squeezing it into a polygon to form a polygon;

A through-hole corresponding to the bush is formed in the center of the nipple body so that the bush formed through the pressing molding step (S1) is fitted and fixedly coupled thereto, and a latching jaw having an edge shape is formed at the upper end of the nipple. And injection molding step (S2) to form a circular through hole in the locking jaw,

After the injection molding step (S2), the bush coupled to the cooling coil is inserted into the through hole, and then combined, the nipple is thermally expanded by placing the nipple in hot water at a predetermined temperature, and the nipple expanded and drawn out after a predetermined time elapses. Shrinkage treatment step (S3) to ensure a tight coupling with the cooling coil as it shrinks while cooling,

Sealing member for preventing leakage and at the same time to prevent the flow by making the coupling between the nipple and the cooling coil more securely to the lower portion of the through hole coupled to the cooling coil after the shrinkage processing step (S3) It is characterized in that it comprises a (sealing) to provide (filling) the sealing step (S4).

With reference to the accompanying drawings, the fixing means of the water cooling apparatus according to the present invention will be understood by the embodiments described in detail below with reference to the accompanying drawings.

Figure 2 is a cross-sectional perspective view showing a coupling state of the cooling coil and the fixing means of the water cooling apparatus according to the present invention, Figure 3 is an exploded view of the cooling coil and the fixing means of the water cooling apparatus according to the present invention. 4 is an enlarged perspective view of part IV of FIG. 2, illustrating a fixing structure of the cooling coil and a connection structure thereof, and FIG. 5 is a cross-sectional view taken along the line “V”-“V” of FIG. 3. 6 is a manufacturing process flowchart of the water cooling device fixing means according to the present invention.

According to FIG. 2, the water cooling device includes a water storage tank 100 in which water is temporarily stored, a cooling coil 120 accommodated in the water storage tank 100 and performing an evaporator function, and the cooling coil 120 of the water cooling device 120. Nipple 130 for fixing the end more securely to the top plate 102 of the water storage tank 100, and the end of the cooling coil 120 extending through the nipple 130 to the outside of the water storage tank 100 It is provided with a refrigeration cycle piping 140 connected to.

The storage tank 100 temporarily stores the water flowing from the outside, and the cooling coil 120 is disposed in a floating state, and thus the cooling coil 120 performs the evaporator function. The water stored in the reservoir tank 100 is cooled.

The cooling coil 120 is bent in a spiral to increase the heat exchange efficiency by performing the evaporator function of the refrigeration cycle as described above. The cooling coil 120 having a spiral is made of a single pipe using a suspipe (stainless steel pipe, also known as a sus pipe) to directly exchange heat with water in the water storage tank 100. This is to avoid problems such as corrosion even in the state accommodated.

3 to 5, the fixing means 180 for fixing and coupling the cooling coil 120 and the refrigeration cycle pipe 140 to the upper plate 102 of the water storage tank 100 may include a predetermined portion of the cooling coil 120. A nipple 130 having a bush 170 coupled to an end, a body 132 having a through hole 134 to which the bush 170 is fitted and coupled, and an upper end of the nipple 130 body 132. It includes a nut 160 to be coupled.

The nipple 130 is formed of a plastic injection molding is installed on the upper plate 102 of the water storage tank 100, the body formed with a female screw 133 on the outer circumference so that the nut 160 formed with a male screw 162 is coupled to the inner circumference. 132 and an outward flange 131 which is integrally formed at the lower end of the body 132 and surface-coupled to the lower portion of the upper plate 102, and has a cooling coil 120 at the center of the body 132. The through-hole 134 of the polygon through which the end of the through) is drilled, and the rounding hole 134a smaller than the diameter of the through-hole 134 is formed in the locking step 135 formed above the through-hole 134. Perforated

The bush 170 has a diameter larger than the outer diameter of the cooling coil 120 and is inserted into a predetermined end of the cooling coil 120 by an initial circular ring so as to correspond to the shape of the polygonal through hole 134. It is pressed into a polygon through a separate press (not shown). When the bush 170 is press-molded, the end portion of the cooling coil corresponding to the bush 170 is also deformed into a rounded circle to form a quadrangle (see FIG. 5). The bush 170 formed as described above is the through hole 134. To be combined in an interference manner.

As described above, the upper end of the body 132 is formed with a locking step 135 having a border shape inward to limit (prevent) the flow of the bush 170 (moving the bush upward) is formed However, the circular through hole (134a) formed in the lengthwise direction in the locking step 135 is preferably formed to be the same as the outer diameter of the cooling coil (120). In addition, between the outward flange 131 and the cooling coil 120, the sealing member 190 of the silicone resin-based sealing member 190 is formed to secure the coupling between the nipple 130 and the cooling coil 120 and to prevent leakage. Is filled.

On the other hand, the through hole 134 is formed in a polygonal shape in the longitudinal direction, in order to form such a through hole 134, the inner surface of the body 132 in a polygonal surface (in one embodiment of the present invention rectangular shape Has a quadrilateral surface to form a mold). However, the present invention is not limited to a quadrangle and can be implemented by forming any one of a pentagon, a hexagon, and an N-square.

Therefore, the end portions 120L and 120R of the cooling coil 120 are extended to the outside of the water storage tank 100 through the through holes 134. In addition, an installation hole 104 is drilled in the upper plate 102 of the water storage tank 100 to install the fixing means 130.

As such, when the fixing means 180 is manufactured, the nipple 130 coupled with the rubber packing 151 is inserted into the insertion hole 104 upward from the bottom of the upper plate 102 of the water storage tank 100. The outward flange 131 of the nipple 130 is caught on the lower surface of the upper plate 102 of the water storage tank 100 and the female screw 133 is exposed to the outside. In this state, when the male screw 162 is matched to the female screw 133 of the body 130 to tighten the fixing nut 160, the nipple 130 is firmly fixed to the top plate 102 of the water storage tank 100 and at the same time. The cooling coil 120 is also disposed while maintaining the floating state inside the reservoir tank 100 (see Fig. 1).

When the sealing member 190 is coupled to the female screw 133 formed on the body 132, the nut 160 formed with the male screw 162 is deformed while being plastically deformed to be airtight and thereby, the leak phenomenon is also perfect. Will be prevented.

As shown in the process step shown in Figure 6, the method of manufacturing the fixing means of the water cooling apparatus according to the present invention is subjected to the following steps.

In particular, the method of manufacturing the fixing means of the water cooling device mainly used for water purifiers;

First, insert a first circular bush (BUSH) 170 into a predetermined end of the cooling coil 120 spirally bent through a banding machine (not shown), and then through a separate presser (not shown) to form a polygonal shape. The compression molding step (S1) is fixed by pressing molding.

Thereafter, the through hole 134 corresponding to the polygonal shape so that the bush 170 formed through the pressing molding step (S1) is fitted and fixed, the nipple 130 of the fixing means 180, the body 132 of the center Injection molding step (S2) is formed in the.

Subsequently, after passing through the injection molding step (S2), the bush 170 coupled to the cooling coil 120 is inserted into the through hole 134 to be combined, and a water tank (not shown) in which hot water at a predetermined temperature is accommodated. The nipple 130 is placed in the thermal expansion, and after a certain time elapsed is pulled out so that the expansion of the nipple 130 is cooled and contracted with the cooling coil 120 in accordance with the plastic deformation contracted while cooling. Processing step S3 is made.

Then, after passing through the shrink fit processing step (S3), the coupling between the nipple 130 and the cooling coil 120 in the lower portion of the through hole 134 to which the cooling coil 120 is coupled more firmly. And a sealing step (S4) for providing (filling) a sealing member 190 for preventing leakage and preventing leakage at the same time.

Hereinafter, with reference to Figures 2 to 6 will be described in detail the configuration of the water cooling device used for the water purifier according to the present invention and its operation and effects.

First, the refrigerant, which has been properly depressurized to a predetermined evaporation pressure, is introduced (see arrow) through one end 120L of the cooling coil 120 connected to the refrigeration cycle pipe 140.

Subsequently, the refrigerant introduced into the cooling coil 120 is heat-exchanged while evaporating, thereby cooling the water stored in the water storage tank 100, and the refrigerant having completed the evaporation action is the other end 120R of the cooling coil 120. Exit through the refrigeration cycle through (see arrow).

At this time, the cooling coil 120 is formed in the multi-shaped (four) through-hole 134 formed in the body (132) of the nipple (130) used to reliably couple the water storage tank (100) and the cooling coil (120). A polygonal bush 170 coupled to a predetermined end of the bush is fitted and the bush 170 is restricted (prevented) from flowing upward through the locking jaw 135.

Then, the nipple 130 made of a plastic injection molding through the shrink fit process (S3) is plastically deformed (made in the process of cooling after thermal expansion) while the cooling coil 120 and the bush 170 coupled to the cooling coil 120 ) Are mutually compressed to maintain airtightness, and this prevents the flow of the bush and the cooling coil at all, and also prevents water leakage. Furthermore, by filling the inside of the outward flange 131 provided at the bottom of the nipple 130 through the sealing member 190, it is possible to completely solve the problem of leakage.

In addition, since the cooling coil 120 is made of a single pipe through the suspipe, the heat exchange with water in the water storage tank 100 is more efficiently performed when the refrigerant evaporates.

As described above, embodiments of the present invention have been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to one embodiment of the present invention.

As can be seen from the above description, the water cooling apparatus according to the present invention improves the coupling structure of the cooling coil and the fixing means built in the water storage tank to prevent the leakage and cooling by limiting the flow of the cooling coil and cooling (Heat exchange) has the effect of improving the efficiency.

As a result of the improvement of the cooling (heat exchange) efficiency, the compressor capacity and the refrigeration cycle, that is, the power consumption of the compressor can be significantly reduced, and the startup time of the compressor can be reduced, thereby extending the life of the compressor. There is an advantage.

In addition, according to the water cooling device of the water purifier of the present invention, there is an advantage that the connection structure of the cooling coil and the refrigeration cycle can be improved to make the connection work easier, thereby reducing the production process and reducing the cost. It can be effective.

Claims (5)

delete delete A water storage tank for storing water, a cooling coil accommodated in the water storage tank and performing an evaporator function, and fixing means installed on the top plate of the water storage tank so that an end portion of the cooling coil penetrates and extends outside the water storage tank. In the fixing means of the equipped water chiller, The fixing means; A through hole through which an end of the cooling coil penetrates in the center and a body having a male screw formed on the outer circumference so as to be coupled with a nut formed with an inner circumference and an outward flange which is integrally formed on the lower end of the body to be combined with the lower surface of the upper plate. Made of nipples, A bush coupled to a predetermined end of the cooling coil and fitted into the through hole to secure the coupling between the cooling coil and the nipple, The through hole is made of a polygonal shape, The bush is fixed to the water cooling device, characterized in that the compression coil is formed in a polygonal shape so as to correspond to the through hole after being fitted with a circular ring at the end of the cooling coil. The method of claim 3, wherein Fixing means of the water cooling device, characterized in that the polygonal shape is a square. A pressing step (S1) of inserting a circular bush (BUSH) into a predetermined end of the cooling coil spirally bent through a banding machine and then pressing and forming a polygon to form a polygon; A through-hole corresponding to the bush is formed in the center of the nipple body so that the bush formed through the pressing molding step (S1) is fitted and fixedly coupled thereto, and a latching jaw having an edge shape is formed at the upper end of the nipple. Injection molding step (S2) for forming a circular through hole in the locking jaw; After the injection molding step (S2), the bush coupled to the cooling coil is inserted into the through hole, and then combined, the nipple is thermally expanded by placing the nipple in hot water at a predetermined temperature, and the nipple expanded and drawn out after a predetermined time elapses. Shrinkage treatment step (S3) to ensure a strong bond with the cooling coil as it shrinks while cooling; Sealing member for preventing leakage and at the same time to prevent the flow by making the coupling between the nipple and the cooling coil more securely to the lower portion of the through hole coupled to the cooling coil after the shrinkage processing step (S3) Method of manufacturing a fixing means of the water cooling device, characterized in that comprises; (sealing) to provide (filling) the sealing step (S4).

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