KR20110014282A

KR20110014282A - Circulation pump and water circulation mat

Info

Publication number: KR20110014282A
Application number: KR1020090071837A
Authority: KR
Inventors: 김유권
Original assignee: 김유권
Priority date: 2009-08-05
Filing date: 2009-08-05
Publication date: 2011-02-11

Abstract

PURPOSE: A circulating pump and a water circulating mat are provided to reduce the risk of water leakage since the water is discharged through a casing, which holds a rotating shaft. CONSTITUTION: A circulating pump comprises a first casing(231), a second casing(232), a rotating shaft(234), an impeller(236), a coil member and a plurality of support members(243~246). The first casing comprises an opening(237a), a hollow flange(231b) and a discharge path(237b). The water flows into through the opening. The hollow flange faces the opening. The discharge path discharges the water from the space between the opening and the flange. The second casing is air-tightly combined to the flange. The rotating shaft is held in the second casing and comprises a rotor. The impeller is installed on the rotating shaft and is located on the space between the opening and the flange.

Description

Circulation pump and water circulation mat

The present invention relates to a circulation pump and a water circulation mat, and more particularly to a circulation pump and a water circulation mat with improved durability.

Water circulation mats, in particular hot water circulation mats, are widely used as simple heating devices or therapeutic and health care products, which are provided to circulate water in the mat.

A motor is used in the circulation pump used to circulate water in the mat, and the motor generates heat according to its operation, and there is a problem in that it is not easily performed by the generated heat and is damaged early. In addition, since the rotating shaft and the like rotated by the motor is not lubricated properly, damage to the motor due to heat generation further worsens the durability of the circulation pump.

On the other hand, there is a problem in that the circulating water is excessively overheated due to a malfunction of the device, and there is a risk of a burn of the user, and there is a risk of premature damage of the device due to overheating, but there is no special safety measure.

In addition, the coil must be installed outside the water supply when the impeller is submerged, so there is a risk of water leakage when used for a long time.

The present invention is to solve the problems described above, to prevent overheating of the motor provided in the circulation pump and to increase the durability by faithfully lubricating the drive parts, the circulation pump and water circulation with less risk of leakage and noise The purpose is to provide a mat.

According to the present invention for realizing this object, it has an opening through which water is introduced, a hollow flange provided at a position opposite to the opening, and a discharge port through which the water is discharged from a space between the opening and the flange. First casing; A second casing which is hermetically coupled to the flange; A rotating shaft accommodated in the second casing and having a rotor; An impeller installed on the rotation shaft and positioned in a space between the opening and the flange; A coil member installed outside the second casing to correspond to the position of the rotor; It provides a circulation pump comprising a; and a plurality of support members for supporting the rotating shaft.

The support members, the first support member for supporting one end of the rotating shaft; A second support member facing the first support member and through which the rotation shaft passes; A third support member interposed between the second support member and the rotor and penetrating the rotating shaft and provided as an elastic member to contact the rotor; And a fourth support member interposed between the second support member and the third support member, the rotation shaft penetrating and contacting the second support member and the third support member.

It may further include a fifth support member interposed between the third support member and the fourth support member, the rotation shaft penetrates and is provided in a thin plate shape.

At least one of the rotating shaft, the first support member, the second support member, and the fourth support member may be formed of ceramic.

The invention also provides a water supply comprising a water tank and a circulation pump; And a mat having a tube through which water supplied from the circulation pump circulates, wherein the circulation pump provides a water circulation mat, which is a circulation pump having the above-described structure.

According to the present invention as described above, not only the noise due to the circulation pump can be significantly reduced, but also the durability can be increased.

In addition, since the support members are made of silicon, not only the wear resistance is high but also the friction noise due to the friction with the rotating shaft is low.

In the case of the present invention, since water is introduced into the casing containing the rotating shaft and then discharged, unlike the conventional pump structure for exposing only the impeller to water, there is less risk of leakage.

By cooling each component of the circulation pump, it is possible to prevent the shortening of the life of the circulation pump due to overheating.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view schematically showing a water circulation mat according to a preferred embodiment of the present invention, FIG. 2 is a partial perspective view of the water supply 2 shown in FIG. 1, and FIG. 3 is a view of the water supply 2 of FIG. 2. Exploded perspective view. 4 and 5 are exploded perspective and sectional views of the circulation pump shown in FIG. 3, respectively. 6 is a partially exploded perspective view showing a part of the circulation pump of FIG. 5.

As shown, the mat for water circulation according to an embodiment of the present invention includes a mat 1 and a water supply 2.

As can be seen in FIG. 3, the water supply unit 2 includes upper and lower housings 211 and 212, a water tank 22, a circulation pump 23, and a discharge hose 25.

The upper and lower housings 211 and 212 are detachably coupled to each other to form an inner space. The upper and lower housings 211 and 212 may be coupled to each other by screws or bolts, but are not limited thereto and may be detachably coupled in various ways. The upper housing 211 is formed with a circulating water refill port 211a for replenishing the circulating water. One end of the circulation water supplement pipe 223, which will be described later, is inserted into the circulation water supplement port 211a so as to be exposed upward. The end portion of the circulating water replenishment pipe 223 is opened or closed by a stopper 213 to replenish the circulating water into the water tank 22. Here, the stopper 213 is provided with a ventilation hole 213a, so that when the water supply 2 is used as a boiler for the hot water mat, the pressure difference generated by circulating water in the water tank 22 may be compensated. Doing.

The water tank 22 is embedded in the inner space of the upper and lower housings 211 and 212. The water tank 22 is equipped with a water temperature regulator 229, a temperature sensor 226, and a water level sensor 227 connected to a power supply source (not shown). The water temperature regulator 229 includes a heater for heating the water and / or a cooler for cooling the water. One or more thermoelectric elements may be used as the water temperature regulator 229.

In addition, an inlet hose 224 into which the circulating water circulated in the tube 11 embedded in the mat 1 is connected, and as described above, the circulating water supplement 211a is located above the water tank 22. Inserted circulating water supplement pipe 223 is provided. Furthermore, a communication hole 225 is formed at one side of the water tank 22 so as to be in communication with the circulation pump 23 to be described later.

On the other hand, the water tank 22 may further include an overheat prevention unit to prevent overheating by cutting off the power supplied to the water temperature controller 229 when the inside thereof is overheated. The overheat prevention unit, the overheat sensor 228 for detecting whether the temperature of the circulating water is overheated above the set temperature, and to cut off the power supply of the power supply source according to the information detected from the overheat sensor 228 A control unit (not shown) may be included, but such techniques are already known, and thus detailed descriptions thereof will be omitted.

The discharge hose 25 is one end 251 is connected to the outlet 237b of the circulation pump 23, the other end 252 is in communication with the tube 11 of the mat (1). Therefore, the circulating water cooled or heated from the water supply 2 through the discharge hose 25 may be supplied to the tube 11 of the mat 1.

4 to 6 are schematic views showing the structure of the circulation pump 23 in detail.

The circulation pump 23 according to an embodiment of the present invention includes a first casing 231 and a second casing 232. Both the first casing 231 and the second casing 232 are formed in a cylindrical shape, and the second casing 232 is accommodated in the first casing 231.

A lid 237 having an opening 237a connected to the communication hole 225 of the water tank 22 is hermetically coupled to the upper end of the first casing 231 via the O-ring 237c.

A hollow flange 231b is formed to face the opening 237a of the first casing 231. The second casing 232 is hermetically coupled to the lower surface of the flange 231b via the O-ring 231a. An inflow space 231c is provided between the upper portion of the flange 231b and the cover 237 to supply circulating water from the water tank 22, and an impeller 236 coupled to the rotation shaft 234 in the inflow space 231c. Is equipped.

The second casing 232 is provided in a cylindrical shape with an upper end open and the flange 231b is adjacent to the open upper end. Around this open top, a support 232a is coupled to the flange 231b by bolts to support the second casing 232 so that the second casing 232 is coupled to the flange 231b. The second casing 232 is a circulating water is introduced into the inside, it is preferable that the second casing 232 is made of a metal so that the circulating water to cool the coil 233 of the outer surface of the second casing 232. .

On the other hand, the outlet 237b is formed on the side wall of the first casing 231 corresponding to the inlet space 231c, and the circulating water introduced through the opening 237a is discharged to the discharge hose 25 through the impeller 236. Be sure to

The impeller 236 is formed with a hollow through hole 236d in the center of the wing 236a, and the blade 236e is formed in an oblique direction in the through hole 236d. Both ends of the through hole 236d are open, and a water inlet 236b is formed around the center portion fitted to the rotation shaft 234, and a water outlet hole 236c is formed at the edge end. Therefore, the water obtained through the water inlet 236b is discharged to the outlet 237b through the water outlet 236c. A plurality of holes 236f bored in the direction of the second casing 232 is provided in the center of the blade 236a to send the circulation water in the direction of the second casing 232.

A first fixing stand 241 and a second fixing stand 242 are installed at both ends of the second casing 232, and the first fixing stand 241 and the second fixing stand 242 are respectively provided at opposite portions. The first support member 243 and the second support member 245 are installed to face each other. The first support member 243 and the second support member 245 may be formed of a wear-resistant ceramic material, and may be formed in a ring shape. The first support member 243 rotatably supports an end of the rotation shaft 234, and the rotation shaft 234 penetrates the second support member 245.

The rotating shaft 234 supported and rotated by the first support member 243 and the second support member 245 is also preferably wear-resistant of the same material as the first support member 243 and the second support member 245. It is formed of ceramic material. The rotor 235 is fixedly coupled to the center portion of the rotating shaft 234. As shown in FIG. 6, the groove 235a drawn in a predetermined depth is formed in the upper portion of the rotor 235 in a concentric manner along the rotation shaft 234.

The third support member 246 is disposed in the groove 235a by an elastic member such as rubber. The third support member 246 has a bottom surface fitted in the groove 235a, and as shown in FIG. 5, the third support member 246 accommodates the fourth support member 247 and the fifth support member 244. It is provided.

The fifth support member 244 is formed of a wear-resistant ceramic material of the same material as the first support member 243 and the second support member 245. It is also preferable that the shape is formed in a ring shape in the same manner as the second support member 245, and is provided to be in contact with the second support member 245.

A plate-shaped fourth ring member 247 is interposed between the fifth support member 244 and the third support member 246. The fourth support member 247 is preferably formed of a thin plastic material, and reduces the friction between the fifth support member 244 and the third support member 246 and thus the noise, and the groove 235a. It serves to reduce the tolerance of the lower surface of the third support member 246 fitted in the fifth support member 244 seated thereon.

The first support member 243 and the second support member 245 are respectively fixed by the first fixing stand 241 and the second fixing stand 242. In this state, when the rotating shaft 234 rotates, the fifth supporting member 244 mounted on the rotor 235 contacts the second supporting member 245 while being rotated by the third supporting member 246 of rubber material. Rotate with 235. Therefore, the rotation shaft 234 can be stably rotated without noise without departing in the direction of the opening 237a.

On the other hand, it is preferable that the second fixing stand 242 is drilled to circulate water into the second casing 232. Therefore, the water flowing through the opening 237a is between the fifth support member 244 and the second support member 245, between the second support member 245 and the fifth support member 244 and the rotating shaft 234, It serves to cool and lubricate the friction surface between the rotating shaft 234 and the first support member 243 to prevent shortening of life and durability due to overheating of the circulation pump.

A coil 233 is installed outside the second casing 232, that is, between the second casing 232 and the first casing 231. The coil 233 has a structure cut off from the flow of water.

Next, the operation of the circulation pump and the water circulation mat according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, when the user starts the operation of the water supply 2 by setting the desired temperature, the temperature sensor 226 detects the temperature of the circulating water in the water tank 22, and if the detected temperature is below the set temperature, the water temperature controller ( The heater of 229) is operated and if the temperature is higher than the set temperature, only the circulation of the circulating water is supplied without supplying power to the heater. When the water circulation mat is used as a cold water mat, when the sensed temperature is higher than the set temperature, the cooler of the water temperature controller 229 is operated.

Power is supplied to the coil 233 of the circulation pump 23 to rotate the rotating shaft 234, and as the impeller 236 connected to the rotating shaft 234 rotates, the circulation water in the water tank 22 is the circulation pump After entering into the (23) is discharged to the discharge hose 25 through the discharge port (237b). On the other hand, the circulating water introduced into the circulation pump 23 not only cools various friction surfaces in the second casing 232 of the circulation pump 23 before being discharged through the discharge port 237b, but also each friction surface. Will be lubricated. Accordingly, the friction noise in the second casing 232 can be significantly reduced. In some cases, the circulating water introduced into the second casing 232 may cool the coil 233 outside the second casing 232.

Next, the circulating water introduced into the discharge hose 25 circulates in the tube 11 installed inside the mat 1, and then the water tank 22 through the inlet hose 224 installed on one side of the water tank 22. ) Into a cycle to form a cycle.

If the amount of circulating water is detected below the set value by the water level sensor 227 mounted in the water tank 22, the user who detects it through a warning display opens the cap 213, and circulates into the water tank 22. You can supplement the number.

On the other hand, if the circulating water is excessively overheated due to a failure or malfunction in the equipment constituting the water supply 2, the damage to the water supply 2 itself, as well as the user's safety may be impaired. This is especially true when used as a hot water mat. Therefore, in this case, by cutting off the power supplied to the temperature controller 229 by an overheat prevention unit including an overheat sensor 228 for detecting overheating, safety can be ensured.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a schematic view showing a system of a water circulation mat according to an embodiment of the present invention,

2 is a partial perspective view of a water supply according to a preferred embodiment of the present invention,

3 is an exploded perspective view of the water supply of FIG.

4 is an exploded perspective view of the circulation pump of FIG. 3;

5 is a cross-sectional view of the circulation pump of FIG.

6 is a partially exploded perspective view of the circulation pump of FIG. 3.

Claims

A first casing having an opening through which water is introduced, a hollow flange provided at a position opposite the opening, and a discharge port through which the water is discharged from a space between the opening and the flange;

A second casing which is hermetically coupled to the flange;

A rotating shaft accommodated in the second casing and having a rotor;

An impeller installed on the rotation shaft and positioned in a space between the opening and the flange;

A coil member installed outside the second casing to correspond to the position of the rotor; And

And a plurality of support members for supporting the rotating shaft.

The method of claim 1,

The support members,

A first support member supporting one end of the rotating shaft;

A second support member facing the first support member and through which the rotation shaft passes;

A third support member interposed between the second support member and the rotor and penetrating the rotating shaft and provided as an elastic member to contact the rotor; And

And a fourth support member interposed between the second support member and the third support member, the rotation shaft penetrating and contacting the second support member and the third support member.

The method of claim 2,

And a fifth supporting member interposed between the third supporting member and the fourth supporting member, the rotating shaft penetrating and provided in a thin plate shape.

The method of claim 2,

At least one of the rotating shaft, the first support member, the second support member and the fourth support member is formed of a ceramic pump.

A water supply including a water bath and a circulation pump; And a mat having a tube through which water supplied from the circulation pump circulates, wherein the circulation pump is a circulation pump according to any one of claims 1 to 4.