KR20160025481A

KR20160025481A - Apparatus for supplying hot water using vane pump and vortex heating

Info

Publication number: KR20160025481A
Application number: KR1020150120381A
Authority: KR
Inventors: 김일희
Original assignee: (주)한울티피씨
Priority date: 2014-08-27
Filing date: 2015-08-26
Publication date: 2016-03-08
Also published as: KR101637496B1

Abstract

The present invention relates to an apparatus for supplying hot water using a hydraulic vane pump and a vortex heating method. According to the present invention, the apparatus of the present invention can completely seal a water tank, prevent an excessive evaporation of moisture, and, reduce the water supply frequency by preventing an increase in the pressure in the water tank. The apparatus of the present invention lets a small amount of water be heated while moving in a spiral shape within a separate heating pipe, instead of heating a great amount of water stored in a water tank, and can increase the heating efficiency. Since the apparatus of the present invention lets water pass through around a motor before being supplied to a heating unit, the apparatus of the present invention can prevent overheating of the motor and perform pre-heating through the heat of the motor. The apparatus of the present invention frequently removes foreign substances included in the water by using a replaceable filter, and can prevent an increase in the viscosity of the water.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydraulic vane pump and a vortex heating method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater, and more particularly, to a device for heating and supplying water in various heating devices using hot water such as a hot water mat.

Hot water mats use the principle of arranging thin hoses in series or in parallel inside the mat and allowing heat from the mat to radiate heat by supplying heated water from the water heater to the hose inside the mat. In this way, the water heater which is used to heat the water in the various heating devices using the hot water such as the hot water mat has been released in various forms so far. However, existing water heaters have the following common problems.

First, when the water tank is filled with water and then heated, the pressure in the water tank is increased. For this purpose, in the conventional hot water equipment, a hole is formed in the water tank to prevent the pressure rise. However, if there is a hole in the water tank, the water easily evaporates, so you have to replenish the water from time to time. Accordingly, when water evaporation and water replenishment are repeated, the viscosity of water increases as the ratio of impurities increases compared to pure water. As a result, motor rotors are overloaded, causing the motor shaft to wear down, resulting in shortened life span and noise and vibration.

In addition, in the existing hot water equipment, a method of heating water with a heater installed in a water tank was used. Therefore, much time and power were consumed while heating a large amount of water stored in a water tank.

In addition, foreign matter such as calcareous matter is generated in the inside of the apparatus by repeated heating. Such foreign matter is stacked on a pipe or a hose, thereby interrupting the circulation of water.

Meanwhile, Korean Patent Laid-Open Publication No. 10-2015-0021428 discloses a related art related to a water heater for supplying hot water to a heating mechanism such as a hot water mat.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a water heater which completely hermetically closes a water tank to prevent excessive evaporation of water, have.

Another object of the present invention is to provide a water heater which can increase heating efficiency by heating a small amount of water in a helical shape in a separate heating pipe while heating a large amount of water stored in a water tank.

It is another object of the present invention to provide a water heater for preventing overheating of a motor and permitting preheating through the heat of the motor by passing the water around the motor before water is supplied to the heating unit.

It is another object of the present invention to provide a water heater that can remove foreign matter contained in water at any time using a replaceable filter.

According to an aspect of the present invention, there is provided a water heater using a hydraulic vane pump and a vortex heating method, the water vending machine comprising: A pump unit for circulating water in the water receiving unit; And a heating unit for heating and discharging the water circulated through the pump unit, wherein the heating unit is separated from the water receiving unit, and a vortex forming unit is provided in the heating unit.

Here, the heating unit may include: a heating pipe having a circulation inlet for receiving water from the pump unit and a circulating water outlet for discharging heated water; A rod heater inserted into one side of the heating tube; And a spring installed between the rod heater and the heating tube, water flowing through the circulation water inlet moves along the spring to generate a vortex so that the contact area between the water and the rod heater is maximized The heating efficiency can be increased.

Further, the heating unit may further include a filter that is replaceably coupled to the circulation water outlet side, so that foreign matter contained in the water can be filtered through the filter.

In addition, the water tub includes: a body for receiving and storing water from the outside; And a pressure holding means for dispersing the pressure inside the body to the outside while changing the shape of the body when the pressure inside the body is increased. When the pressure inside the body rises, the pressure inside the body The pressure can be dispersed to the outside.

The pump unit may further include: a pump body having a motor mounting portion and a pump operating space connected to the water tank outlet of the water receiving portion; A motor mounted on the motor seat for generating power; And a vane pump installed in the pump operation space to receive power from the motor and rotate to generate hydraulic pressure to draw water from the water tank outlet of the water receiving unit and discharge the water. Therefore, even if the motor rotates at a low speed, Water circulation can occur.

Also, the water discharged from the vane pump of the pump unit flows into the heating unit through the pipe, the pipe is installed in the form of wrapping the motor, and before the water discharged from the vane pump flows into the heating unit, It can be preheated by the generated heat.

The present invention has the following effects.

First, in the hot water apparatus according to the present invention, the water tub is completely closed to suppress the evaporation of water, so that there is no inconvenience that water needs to be replenished from time to time according to evaporation of water. Therefore, it is possible to solve the problem that the ratio of the impurities is increased due to frequent water evaporation and water replenishment, the viscosity of water is increased, and the pump part is overloaded to shorten the service life.

Further, even if the pressure in the water receiving portion is increased in a state where the water tub is completely closed, the pressure of the raised hose is reduced while the pressure is reduced, and the inside of the water receiving portion can be maintained at a constant pressure. Conversely, if the water is reduced, the corrugated hose is restored to its original state, so that the occurrence of bubbles in the water tank is suppressed.

In addition, in place of the method of directly heating a large amount of water in the water receiving portion, a spiral vortex is generated in a separate heating pipe to heat the water, thereby increasing the contact area and contact time between the water and the rod heater, The hot water can be produced immediately, and the heating efficiency can be increased, so that the power can be saved.

In addition, since water can pass through the motor around the motor before water is supplied to the heating unit, the motor can be prevented from overheating, and preheating can be performed through the heat of the motor, thereby increasing the efficiency.

In addition, a replaceable filter is provided at the end of the heating pipe to remove foreign matter from the circulating water at any time, thereby preventing foreign matter from accumulating on the hose, piping, and the like of the heating mechanism.

On the other hand, in the present invention, since the vane pump is used, the water supply pressure can be increased while the noise is reduced at low speed, and the rotating blade closely contacts the inner wall of the pump working space to crush foreign substances such as calcareous have.

1 is a perspective view illustrating a water heater according to an embodiment of the present invention;
2 is a perspective view of the water heater shown in Fig.
3 is a perspective view of the water heater shown in Fig.
FIG. 4 is a perspective view of the water heater shown in FIG. 1, with the cover of the water receiving part and the pump part removed.
5 is a view for explaining a pressure holding state in a water receiving portion through a schematic cross-section of a water receiving portion in the hot water appliance shown in Fig.
6 is a view for explaining a configuration of a vane pump constituting a pump unit in the hot water apparatus shown in FIG. 1;
Fig. 7 is a view for explaining a power transmission configuration of the pump section in the hot water device shown in Fig. 1; Fig.
8 is a view for explaining the operating state of the vane pump shown in Fig.
FIG. 9 is a perspective view for explaining a heating unit in the hot water apparatus shown in FIG. 1; FIG.
10 is an exploded perspective view of the heating unit shown in Fig.
11 is a schematic cross-sectional view of the heating unit shown in Fig.
FIG. 12 is a conceptual view for explaining the flow of water in the hot water apparatus shown in FIG. 1; FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily those not necessary in the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

FIG. 1 is a perspective view for explaining a water heater according to an embodiment of the present invention. FIG. 2 is a perspective view of a water heater and a pump of the water heater shown in FIG. 1, FIG. 4 is a perspective view of the water heater shown in FIG. 1, with the cover of the water receiving unit and the pump unit removed. FIG.

1 to 4, a water heater according to an embodiment of the present invention includes a case 10, a water supply unit 20, a pump unit 40, a heating unit 70, and a pipe 100 ).

The case 10 may be made of an aluminum material to prevent electromagnetic waves and the inside of the case 10 may have a structure including a water receiving unit 20, a pump unit 40, and a heating unit 70. Further, on the outside of the case 10, there are provided an operation button 12 for inputting a user's command, a display 11 and an LED 13 for displaying an operating state. In addition, a PCB (not shown) for controlling electrical components is installed inside the case 10, and a connection port 80 to which a connection jack 90 is connected is provided at one side.

Here, the connection jack 90 is provided for connection between the hose of the heating mechanism such as a hot water mat and the hot water equipment according to the embodiment of the present invention. (93) and a second connection port (94). In the state that the connection jack 90 is connected and fixed to the connection port 80, a push button 92 for releasing the fixing is provided in the connection jack body 91. The first connection port 93 and the second connection port 94 provided at one side of the connection jack body 91 are coupled to the first connection port 81 and the second connection port 82 of the connection port 80, respectively. The first connection port 81 and the second connection port 82 are connected to the water receiving unit 20 and the heating unit 70 through the pipe 100 so that water circulation is possible. I will explain.

The water receiving portion 20 is a structure for temporarily storing water to be heated. The water receiving portion 20 includes a body, a corrugated hose 27, a corrugated hose coupling bracket 28, a water level sensor 29, and a replenishing water supplying means 30. [

The body includes a lower body (21) and an upper body (25). First, the lower body 21 is provided with a space for storing replenishing water, and on the inner side, a pleated hose seating portion 22 communicating with the lower portion of the lower body 21 is formed. A circulation feeding inlet 23 is formed at one side of the lower body 21 and connected to the first connection port 81 by the pipe 100 so that the circulation water is introduced from the first connection port 93 of the connection jack 90, On the other side, a water tank outlet 24 is formed.

A pleated hose (27) is seated inside the pleated hose seating portion (22) of the lower body (21) as a pressure holding means. Referring to FIG. 5, the lower portion of the pleated hose 27 is open and the upper portion is closed. The lower periphery of the corrugated hose 27 is fixed by the corrugated hose engaging bracket 28 so as to be in close contact with the bottom surface of the corrugated hose seating portion 22. Therefore, even if the inner space of the lower body 21 is communicated with the outside by the pleated hose seating portion 22, it is blocked by the pleated hose 27, thereby preventing the replenishing water from leaking.

In addition, a water level sensor 29 for sensing the level of the makeup water is provided at one side of the lower body 21, and the level information of the makeup water sensed by the water level sensor 29 is transmitted to a separate controller (not shown) (11).

The upper body 25 is coupled to the open top of the lower body 21. A supplementary water connection port 26 is formed at one side of the upper body 25 and a replenishing water supply means 30 is rotatably coupled to the supplementary water connection port 26.

5 (a), in the state in which the replenishing water supply means 30 rotatably coupled to the replenishing water connection port 26 of the upper body 25 is erected, the replenishing water supply means 30 The inside and the outside of the lower body 21 are communicated with each other through the supplementary water supply hole 31 and the makeup water connection hole 26. Therefore, if the water is replenished through the supplementary water supply hole 31 of the replenishing water supplying means 30, the water is replenished to the lower body 21.

5 (b), the connection between the replenishing water connection port 26 and the replenishing water supply hole 31 is released and the replenishing water supply means 30 The replenishment water connection hole 26 is closed. That is, the inside of the water receiving portion 20 is completely sealed.

However, when the replenishing water is circulated and heated by the operation of the pump unit 40 and the heating unit 70, which will be described later, the pressure of the water receiving unit 20 increases as the water expands due to the temperature rise. At this time, an increase in pressure may cause an overload to components such as the pump unit 40 and the pipe 100. In this embodiment, the pressure holding unit is provided in the water receiving unit 20, so that excessive pressure is suppressed. 5 (c), when the pressure in the water receiving portion 20 becomes high, pressure is applied to the upper portion of the pleated hose 27, and the pleated hose 27 is compressed. That is, the increased pressure in the water receiving portion 20 is used to compress the corrugated hose 27, and the pressure rise in the water receiving portion 20 is prevented by the deformation of the corrugated hose 27. On the contrary, when the water escapes from the water receiving portion 20 and the pressure is lowered, the corrugated hose is restored to the original state, thereby suppressing the occurrence of bubbles in the water tank. Therefore, the inside of the water receiving portion 20 can always be maintained at a constant pressure.

Of course, in the present embodiment, the pleated hose 27 is used as the pressure maintaining means, but other types of pressure maintaining means designed to be able to maintain the internal pressure by designing with a stretchable material and changing the shape according to the pressure change may be applied.

On the other hand, a drain hole (not shown) which can be opened and closed is provided at a certain point of the lower body 21, so that the water used repeatedly can be taken out.

The pump unit 40 includes a pump body 41, a pump cover 48, a motor 50, a gear unit, and a vane pump 60 for drawing and circulating water stored in the water receiving unit 20 .

A motor mounting portion 42 is provided on one side of the pump body 41 and a pump operating space 45 is provided on the other side. A gear box 43 for protecting the gear portion is provided between the motor mount portion 42 and the pump operation space 45. A gear box cover 44 is coupled to the upper portion of the gear box 43. [

The motor 50 is seated on the motor mount portion 42 of the pump body 41 and fixed by the motor fixing bracket 51 and the gear portion for power transmission is protected in the gear box 43.

6, the vane pump 60 is rotated by receiving power from the motor 50 and includes a rotor 61, a rotary shaft 63, a rotary vane 64, and a spring 65.

The rotor 61 is provided with a blade inlet groove 62 through which a rotary blade 64 is inserted at a predetermined interval and a spring 65 is disposed inside the blade inlet groove 62, 64 are inserted. At this time, the wing inlet grooves 62 are formed so as not to extend in the vertical direction from the rotary shaft 63, which is the center of the rotor 61, but to prevent the extended line from crossing the rotary shaft 63. That is, the rotary vane 64 is drawn out in a diagonal direction from the periphery of the rotor 61. [

Further, the rotary shaft 63 of the rotor 61 is not aligned with the center of the pump operating space 45 and is deflected to one side. The water tank connecting portion 46 connected to the water tank outlet 24 of the water receiving portion 20 is formed in the pump operating space 45 in which the vane pump 60 including the rotor 61 is installed, Is connected to the fluid passage (49) of the pump cover (48). The operation of the vane pump 60 will be described later.

7, the gear portion for transmitting the power of the motor 50 to the rotor 61 side of the vane pump 60 includes a worm gear 53, a worm wheel gear 54, a first spur gear 56, And a spur gear 57.

The worm gear 53 is connected to a motor shaft (not shown) through a coupler 52, and a worm wheel gear 54 is attached to the worm gear 53. The worm wheel gear 54 and the first spur gear 56 are connected to each other by a power transmission shaft 55. The circumference of the first spur gear 56 is connected to the second rotary shaft 63 of the rotor 61, And is engaged with the spur gear 57. When the worm gear 53 rotates by the operation of the motor 50, the worm wheel gear 54 rotates to rotate the first spur gear 56, and the second spur gear 57 engaged with the first spur gear 56 The rotor 61 of the vane pump 60 rotates.

8, when the motor 50 is operated while the rotor 61 of the vane pump 60 is eccentrically installed in the pump operating space 45 of the pump body 41, Turn clockwise. At this time, the rotary vane 64 provided in the vane inlet groove 62 formed on the side surface of the rotor 61 protrudes outward due to the elasticity and the centrifugal force of the spring 65, As shown in Fig. At this time, a space is formed between the rotary blades 64. As the rotary blades 64 rotate, a volume change occurs in the space, and a change in pressure sometimes occurs. The volume of the space formed between the rotating blades 64 of the stage instantaneously increases instantaneously at the moment when the rotating blades 64 pass the water tank connecting portion 46, So that the water stored in the lower body 21 is sucked through the water tank outlet 24. The volume of the space filled with water is reduced and compressed as additional rotation occurs and is discharged to the piping 100 connected to the fluid passage 49 as soon as it faces the fluid passage 49 formed in the pump cover 48. With this principle, even if the rotor 61 rotates at a low speed, the supply water pressure of the water can be increased.

Since the rotary vane 64 rotates while closely contacting the inner wall 47 of the pump operation space 45, foreign matter such as calcareous matter mixed with water is pushed in a state sandwiched between the rotary vane 64 and the inner wall 47, . At this time, the rotary vane 64 is developed in the oblique direction deviating from the rotation center of the rotor 61 and brought into close contact with the inner wall 47. That is, the angle of the portion where the inner wall 47 and the rotary vane 64 are in contact with each other is very small. Therefore, the foreign matter can be crushed by the wedge effect while being caught in the narrow gap between the inner wall 47 and the rotary vane 64.

On the other hand, even if the rotary vane 64 is freely engaged with the vane inlet groove 62 of the rotor 61, when the rotor 61 rotates, the rotary vane 64 is rotated by the centrifugal force on the inner wall 47). However, in the present embodiment, the motor 50 is rotated at a low speed in order to suppress noise. Therefore, the rotating blades 64 may not be smoothly drawn out due to the weak centrifugal force. To prevent this, the springs 65 are provided in the blind pulling grooves 62 to help the rotating blades 64 out. In addition, the rotating blade 64 is strongly pressed against the inner wall 47 by the elastic force of the spring 65, thereby enhancing the effect of crushing foreign matter such as calcareous matter.

On the other hand, the water that has flowed through the water tank connecting portion 46 of the pump operating space 45 and discharged along the fluid passage 49 of the pump lid 48 flows into the heating portion 70 along the pipe 100, The pipe 100 is designed so as to pass around the motor 50 before the water is introduced into the pipe 70.

The pipe 100 connecting the fluid passage 49 of the pump cover 48 with the circulating water inlet 72 of the heating unit 70 is installed to surround the motor 50 several times. Therefore, the water can be preheated by the heat generated by the motor 50 before it enters the heating unit 70 and is heated in earnest. In addition, since the heat generated by the motor 50 can be cooled by the water passing through the pipe 100, it is possible to enjoy the effect of a single pudding.

Fig. 9 is a perspective view for explaining the heating unit 70 in the hot water apparatus shown in Fig. 1, Fig. 10 is an exploded perspective view of the heating unit 70 shown in Fig. 9, Sectional view of the portion 70 of FIG.

9 to 11, the heating unit 70 for heating the water discharged from the water receiving unit 20 by the operation of the pump unit 40 includes a heating pipe 71, a spring 74, 75, a temperature sensor 78, a filter cap 79, and a filter 79.

A circulation water inlet 72 connected to the fluid passage 49 of the pump lid 48 by the pipe 100 is formed on one side of the long cylindrical heating pipe 71 and a circulation water outlet 73 Is formed. A rod heater 75 mounted on the fixed cap 76 and supplied with power through a power supply terminal 77 is inserted and fixed at one end of the heating pipe 71. At this time, a spring (74) is inserted around the rod heater (75).

A temperature sensor 78 is inserted at a certain point of the heating tube 71 and a filter 79a attached to the filter cap 79 is inserted and fixed at the other end.

The heating tube 71 is provided at its outer side surface with a coupling guide 71a so that the heating part 70 can slide on the pump body 41. [

When the water flows into the heating pipe 71 through the circulating water inlet 72 through the power of the pump unit 40 and the water moves to the opposite end along the heating pipe 71, And heated. At this time, a spring (74) is provided between the periphery of the rod heater (75) and the inner wall of the heating pipe (71). Therefore, the water flowing into the circulation water inlet 72 follows the shape of the spring 74 while circling around the rod heater 75. That is, since the water moves due to the spiral vortex, the contact area and the contact time between the water and the rod heater 75 are increased. Therefore, the heating effect of water can be maximized. Of course, it is not necessary to use the spring 74 to form a helical vortex, and a screw thread may be formed inside the heating tube 71.

The temperature of the heated water in the heating tube 71 can be measured by the temperature sensor 78 and transmitted to the control unit (not shown) and output through the display 11.

On the other hand, the water heated in the heating pipe 71 flows out through the circulation water outlet 73 on the opposite side and is conveyed to the second connection port 82 on the pipe 100 and then flows through the second connection port 94 of the connection jack 90 And then flows into a heating device such as a hot water mat.

At this time, the heated water before being discharged through the circulating water outlet 73 of the heating pipe 71 passes through the filter 79a mounted on the filter cap 79, and foreign matter is filtered. The filter 79a for filtering out foreign substances can be cleaned or replaced after opening the filter cap 79 for a predetermined period of time.

The overall flow and operation of the water in the hot water device according to the embodiment of the present invention will be described with reference to FIG.

The replenishing water supply means 30 of the water receiving portion 20 is set up to connect the replenishing water supply hole 31 and the replenishing water connection hole 26 and then water is supplied to the lower body 21 when water is supplied. Thereafter, when the replenishment water supply means 30 is laid down, the inside of the water receiving portion 20 is completely sealed from the outside (see FIG. 5 (b)).

When a command is inputted through the operation button 12 provided in the case 10, the motor 50 of the pump unit 40 is operated and power is also supplied to the rod heater 75 of the heating unit 70, Hot water generation begins.

That is, the motor 50 is operated and the power is transmitted in the order of the worm gear 53, the worm wheel gear 54, the power transmission shaft 55, the first spur gear 56, the second spur gear 57, When the rotor 61 is rotated, the rotary blade 64 is rotated in a state in which the rotary blade 64 is closely attached to the inner wall 47 of the pump operating space 45, so that the water in the water- And then flows into the pump operating space 45 through the water tank connecting portion 24 and the water tank connecting portion 46 and then to the fluid passage 49 of the pump lid 48. [

The water that has escaped to the fluid passage 49 flows along the pipe 100 while wrapping around the motor 50 several times and then flows into the circulating water inlet 72 of the heating unit 70. The water generated by the motor 50 can be cooled and the water can be preheated by using the heat of the motor 50. At this time, have.

The water flowing into the circulating water inlet 72 of the heating tube 71 is moved while generating a spiral vortex along the spring 74 provided between the rod heater 75 and the inner wall of the heating tube 71, The contact area of the water and the rod heater 75 and the contact time are maximized and efficient heating is performed, and then the water is passed through the filter 79a to the circulation water outlet 73. [

The hot water discharged to the circulating water outlet 73 of the heating pipe 71 moves to the second connecting port 82 along the pipe 100 and is supplied to the heating device such as the hot water mat through the second connecting port 94.

The circulating water circulated in the heating mechanism is discharged through the first connection port 93 and the first connection port 81 of the connection jack 90 and flows into the circulation feeding inlet 23 of the lower body 21 through the pipe 100 Lt; / RTI > That is, when the water started from the water receiving portion 20 is circulated, the water flows into the water receiving portion 20 again.

As described above in detail, according to the present invention, there is no inconvenience that the water receiving portion 20 is completely closed to suppress the evaporation of water, thereby replenishing the water at various times according to evaporation of water. Therefore, the problem of frequent moisture evaporation and water replenishment increases the proportion of impurities, increases the viscosity of water, and overloads the pump unit 40, thereby shortening the service life.

Also, even if the pressure in the water receiving portion 20 is increased in a state where the water receiving portion 20 is completely closed, the raised pressure can be reduced while the wrinkle hose 27 is compressed, and the inside of the water receiving portion can be maintained at a constant pressure. Conversely, if the water is reduced, the corrugated hose is restored to its original state, so that the occurrence of bubbles in the water tank is suppressed.

Instead of the method of directly heating a large amount of water in the water receiving portion 20, a spiral vortex is generated in the separate heating pipe 71 to heat the water, so that the contact between the water and the rod heater 75 By increasing the contact time with the area, the hot water can be immediately produced even at the beginning of the operation, and the heating efficiency can be increased and the power can be saved.

In addition, water can pass through the motor 50 before the water is supplied to the heating unit 70, thereby preventing overheating of the motor 50 and preventing preheating through the heat of the motor 50 Thereby increasing the efficiency.

In addition, a replaceable filter 79a may be provided at the end of the heating pipe 71 to remove foreign matter from the circulating water at any time, thereby preventing accumulation of foreign matter on the hose of the heating mechanism, the pipe 100, and the like.

In the present invention, since the vane pump 60 is used, the supply water pressure of water can be increased while the noise is reduced by the low-speed rotation, and the rotary vane 64 is brought into close contact with the inner wall 47 of the pump operating space 45 There is also an effect of pulverizing foreign materials such as calcareous while rotating.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And additions should be considered as falling within the scope of the claims of the present invention.

10: Case
11: Display
12: Operation button
13: LED
20:
21: Lower body
22: Wrinkle hose seat part
23: Circulating feeding entrance
24: Water tank exit
25: upper body
26: Replacement water connection port
27: Wrinkle hose
28: Wrinkle hose connection bracket
29: Water level sensor
30: Supplemental water supply means
31: Replacement of handmade shoes
40: pump section
41: pump body
42:
43: Gear box
44: gear box cover
45: Pump working space
46:
47: inner wall
48: Pump cover
49: fluid passage
50: Motor
51: Motor fixing bracket
52: Coupler
53: Worm Gear
54: Worm wheel gear
55: Power transmission shaft
56: first spur gear
57: 2nd spur gear
60: Vane pump
61: rotor
62: wing entry groove
63:
64:
65: spring
70:
71: Heating pipe
71a: Coupling guide
72: Circulating water inlet
73: Circulating water outlet
74: spring
75: Bar heater
76: Fixed cap
77: Power supply terminal
78: Temperature sensor
79: Filter cap
79a: filter
80:
81: First connection port
82: second connection port
90: connection jack
91: Connecting jack body
92: Push button
93:
94:
100: Piping

Claims

A water reservoir for storing water;
A pump unit for circulating water in the water receiving unit; And
And a heating unit for heating and discharging the water circulated through the pump unit,
Wherein the heating section is separated from the water receiving section, and vortex forming means is provided in the heating section.

The method according to claim 1,
The heating unit includes:
A heating tube having a circulation import port through which water flows from the pump section and a circulating water outlet through which heated water is discharged;
A rod heater inserted into one side of the heating tube; And
And a spring installed between the rod heater and the heating tube,
Wherein water flowing through the circulating water inlet moves along the spring to generate a vortex so that the contact area between the water and the rod heater is maximized and the heating efficiency is increased.

3. The method of claim 2,
The heating unit includes:
And a filter interchangeably coupled to the circulation water outlet side,
Wherein the foreign matter contained in the water is filtered through the filter.

The method according to claim 1,
Wherein,
A body for receiving and storing water from the outside; And
And pressure holding means for dispersing the pressure inside the body to the outside while changing the shape when the pressure inside the body rises,
Wherein when the pressure inside the body rises, the pressure inside the body is dispersed to the outside through the pressure holding means.

The method according to claim 1,
The pump unit includes:
A pump body having a motor mounting portion and a pump operating space connected to the water tank outlet of the water receiving portion;
A motor mounted on the motor seat for generating power; And
And a vane pump installed in the pump operating space and receiving power from the motor to generate hydraulic pressure to draw water from the water tank outlet of the water receiving portion,
Wherein water circulation can be generated through the hydraulic pressure even if the motor rotates at a low speed.

6. The method of claim 5,
Water discharged from the vane pump of the pump unit flows into the heating unit through a pipe,
Wherein the pipe is installed in a manner that the motor is wrapped around and the water discharged from the vane pump is preheated by heat generated in the motor before the water is introduced into the heating unit.