WO2020055054A1

WO2020055054A1 - Instantaneous water heating device

Info

Publication number: WO2020055054A1
Application number: PCT/KR2019/011607
Authority: WO
Inventors: 이재영; 임현철; 양재석
Original assignee: 주식회사 아모그린텍
Priority date: 2018-09-10
Filing date: 2019-09-09
Publication date: 2020-03-19
Also published as: KR20200029222A; KR102565047B1

Abstract

An instantaneous water heating device is provided. An instantaneous water heating device according to an exemplary embodiment of the present invention comprises: a hollow housing connected to a flow path; at least one heater unit arranged in a lengthwise direction inside the housing so as to heat fluid passing through the housing; and a control unit for controlling the operation of the heater unit, wherein the heater unit is formed as a spiral wound type in which a planar heating element is wound many times such that the fluid can pass therethrough.

Description

Instantaneous water heater

The present invention relates to an instantaneous hot water device.

The instantaneous hot water device is installed in a product with a relatively small amount of hot water, such as an electronic bidet, a cold and hot water purifier, and a cold and hot water purifier. Such an instantaneous hot water device can produce hot water in a short time by heating the fluid passing through the pipeline.

The currently used instantaneous hot water device is installed on the outside of a water pipe made of an insulating material such as ceramic to heat the fluid passing through the pipe to produce hot water, or through the heating element disposed inside the metal pipe, which is present on the outside of the metal pipe. The fluid is heated to produce hot water.

However, the heat transfer efficiency of the ceramic-based material is lower than that of metal, because the thermal conductivity is small. Accordingly, the instantaneous water heater using a ceramic-based material requires a relatively long time to produce hot water at a target temperature than the instantaneous hot water heater using a metal material in order to increase the fluid temperature to a target temperature.

In addition, the instantaneous hot water device using a metal tube in which a heating element is disposed inside is a method of heating the fluid passing outside the metal tube, so it is not possible to secure enough time for the fluid to be heated or because the contact area between the metal tube and the fluid is small. There is a problem that the temperature cannot be raised to the target temperature.

In order to solve this, a method of lengthening the length of the metal tube used in the instantaneous hot water device or complicating the path of the fluid has been proposed. However, the change of the metal tube causes the enlargement of the instantaneous water heater, and there is a problem of increasing noise and power consumption.

The present invention has been devised in view of the above points, and an object thereof is to provide an instantaneous water heater capable of heating a fluid to a target temperature in a short time by increasing a heat exchange efficiency by increasing a contact area with the fluid.

In order to solve the above problems, the present invention, a hollow housing connected to the flow path; At least one heater unit disposed along the longitudinal direction in the interior of the housing to heat the fluid passing through the interior of the housing; And a control unit for controlling the operation of the heater unit, and the heater unit provides an instantaneous hot water device in which a plate-shaped heating element is wound in a spiral wound several times so that the fluid can pass therethrough.

In addition, the housing may include an opening for allowing electrical connection between the heater terminal terminal and the control unit. In this case, the opening may be sealed through a plate-shaped cover plate, and the cover plate may include a through hole formed in a region corresponding to the heater portion so that the pair of terminal terminals can pass through it. have.

In addition, the heater portion, the heating element is bent to be formed so that the peaks and valleys are repeated along the longitudinal direction; And a plate-shaped support disposed on one surface of the heating element to maintain the shape of the heating element.

As an example, the heating element may include a plate-shaped exterior material having a predetermined area; A heat generating source disposed inside the exterior material and generating heat when power is applied; An insulating layer disposed between the heating source and the exterior material; And a pair of terminal terminals provided at both ends of the heat generating source and protruding outwardly of the exterior material.

In this case, the heat source may be either an amorphous ribbon sheet or percaloy.

In addition, the heating elements can be mutually coupled without using an adhesive. For example, the terminal terminal may be a plate-shaped metal tube surrounding the end of the heat source, and the insulating layer may be a plate-shaped insulating tube simultaneously surrounding the heat source and a portion of the metal tube, and the exterior material is the insulating tube It may be a plate-shaped thermally conductive outer tube surrounding the.

At this time, the metal tube and the outer tube may be formed in a plate shape through pressure.

In addition, the control unit may include a circuit board disposed on one side of the housing, and the heater unit may be electrically connected to a pair of terminal terminals.

In addition, the above-described instantaneous hot water device may include at least one temperature sensor for controlling the heating temperature of the heater unit.

According to the present invention, the heat transfer efficiency is increased to rapidly heat the fluid to a target temperature, so that hot water can be stably supplied even when a direct water system is applied.

1 is a view showing an instantaneous hot water device according to an embodiment of the present invention,

Figure 2 is an exploded view of Figure 1,

3 is a cross-sectional view taken along line A-A in FIG. 1,

Figure 4 is a view as viewed from the top of the heater portion coupled to the cover plate in the instantaneous hot water device according to an embodiment of the present invention,

5 is a view showing a heater unit that can be applied to the instantaneous hot water device according to an embodiment of the present invention,

6 is a view showing a state in which the support is separated from FIG. 5,

7 is a view showing a manufacturing procedure of a heating element that can be applied to an instantaneous hot water device according to an embodiment of the present invention,

8 is a cross-sectional view of a portion of the heating element in FIG. 7 (e) cut in the B-B direction,

9 is a cross-sectional view taken along the line C-C in FIG. 8, and

10 is a view showing a state in which a temperature sensor is mounted to a heater unit that can be applied to an instantaneous hot water device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. In the drawings, parts not related to the description are omitted in order to clearly describe the present invention, and the same reference numerals are added to the same or similar elements throughout the specification.

The instantaneous hot water device 100 according to an embodiment of the present invention may be connected on a flow path through which a fluid passes, as illustrated in FIG. 1. Through this, the instantaneous hot water device 100 may produce hot water by heating and heating the fluid passing through the flow path.

That is, since the instantaneous hot water device 100 according to an embodiment of the present invention produces hot water in a direct heating method that directly heats the fluid passing through the flow path, a separate storage tank for storing the raw water is omitted. You can.

To this end, the instantaneous hot water device 100 according to an embodiment of the present invention includes a housing 110, a heater unit 120, and a control unit 130 as shown in FIGS. 2 and 3.

The housing 110 may have both ends connected to the flow path so that the fluid to be heated can pass. In addition, the heater unit 120 may be disposed inside the housing 110. Through this, the fluid may be heated through the heater unit 120 in the process of passing through the housing 110.

For example, the housing 110 may be a hollow tube member having a predetermined length and having both ends open. In addition, at least one heater unit 120 may be disposed along the longitudinal direction inside the housing 110.

Accordingly, the fluid flowing along the flow path may be heated through the heater unit 120 in the process of passing through the interior of the housing 110 after flowing into the interior of the housing 110.

Here, one end of the housing 110 may be connected to the flow path via a flange, or one end may be directly connected to an end of the flow path.

At this time, the housing 110 may include an opening 112 that is cut in the longitudinal direction from one end.

The opening 112 may provide a space in which a part of the heater unit 120 disposed inside the housing 110 can be exposed to the outside. For example, the heater unit 120 may be exposed with a terminal terminal 122d for electrical connection to the outside through the opening 112.

In addition, the opening 112 is formed from the end of the housing 110 so that the heater unit 120 can be easily inserted into the housing 110. That is, when the heater unit 120 is disposed to be located inside the housing 110, even if the terminal terminal 122d of the heater unit 120 protrudes outward from the inside of the housing 110, the terminal The terminal 122d may be moved along the longitudinal direction of the housing 110 along the opening 112. Through this, even if the terminal terminal 122d of the heater unit 120 protrudes from the inside of the housing 110 to the outside, the operation for arranging the heater unit 120 inside the housing 110 is easily performed. Can be.

Meanwhile, in the instantaneous hot water device 100 according to an embodiment of the present invention, the opening 112 may be sealed through a plate-shaped cover plate 114. Through this, the instantaneous hot water device 100 may be prevented from leaking to the outside through the opening 112 in the process of the fluid passing through the interior of the housing 110.

At this time, a part of the heater part 120 may be fixed to the cover plate 114. For example, a portion of the heater part 120 protruding from the inside of the housing 110 to the outside may be fixed to the cover plate 114. Accordingly, when the cover plate 114 is inserted into the housing 110 while a part of the heater part 120 is fixed to the cover plate 114, the opening 112 is the cover plate 114 ) May be sealed, and a part of the heater unit 120 may be disposed in an exposed state through the opening 112.

Here, the cover plate 114 may have a relatively large area than the opening 112, and the rim side may be fixed to the housing 110 through welding or the like. In one example, the cover plate 114 may be disposed inside the housing 110, the rim side may be fixed to the inner surface of the housing 110. Accordingly, the cover plate 114 may seal the opening 112, and some of the heater parts 120 may be exposed to the outside through the cover plate 114.

At this time, the cover plate 114 may include at least one through hole 115 formed through. The through hole 115 may be formed in a region corresponding to the heater unit 120, and may be provided in a number corresponding to the heater unit 120. Accordingly, when the cover plate 114 is fixed to one surface of the housing 110, the opening 112 of the housing 110 may be sealed through the cover plate 114, the heater unit ( The portion protruding out of the housing 110 among the 120 may be exposed to the outside through the through hole 115 in a state fixed to the cover plate 114. Through this, the cover plate 114 can be prevented from leaking the fluid passing through the interior of the housing 110 to the outside through the opening 112, the through hole (of the heater unit 120) The portion protruding out of the housing 110 through 115 may be easily electrically connected to the control unit 130.

At this time, the through hole 115 may include a protrusion 116 protruding outward along the rim. When the protruding portion 116 of the heater portion 120 protruding out of the housing 110 is fixed to the cover plate 114, the protruding portion 116 of the housing 110 of the heater portion 120 It may be in close contact with the portion protruding to the outside. Accordingly, the protruding portion 116 may fix the heater portion 120 by having one surface of the heater portion 120 in close contact with an edge of the portion protruding out of the housing 110. Through this, the protrusion 116 can improve the bonding force between the heater unit 120 and the cover plate 114.

Meanwhile, a separate sealing member 117 may be disposed in the through hole 115. 4, the sealing member 117 is disposed in the through hole 115 to surround a pair of terminal terminals 122d of the heater unit 120 as shown in FIG. 4, thereby increasing the sealing force. Through this, the possibility of leaking through the through hole 115 in the process of passing the fluid through the interior of the housing 110 can be prevented.

Here, the sealing member 117 may be provided as a separate member to be coupled to the through hole 115, or a liquid or gel-like material may be filled in the through hole 115. In one example, the sealing member 117 may be silicone caulking or a molding. However, the sealing member 117 is not limited thereto, and various known materials can be used without limitation as long as it prevents the generation of a gap and prevents leakage of the fluid.

The heater unit 120 may heat the fluid by providing heat to the fluid side passing through the interior of the housing 110. To this end, the heater unit 120 may be disposed inside the housing 110 as shown in FIG. 3, and may be disposed one or more along the longitudinal direction of the housing 110. Accordingly, the fluid may be heated by heat provided from the heater unit 120 in the process of passing through the interior of the housing 110.

At this time, the heater unit 120 may be disposed inside the housing 110 to allow the fluid to pass through the heater unit 120.

That is, the heater unit 120 may include a plate-shaped heating element 122 having a predetermined length, as shown in FIGS. 5 and 6, and the heating element 122 has an acid portion and a valley portion along the longitudinal direction. It can be bent repeatedly. In addition, the heating element 122 may be formed in a spiral wound type wound a plurality of times, and the peaks and valleys may be formed in a direction parallel to the width direction of the heating element 122.

Accordingly, a passage through which the fluid can pass may be formed between the hills and hills or the hills and valleys facing each other, and the passage may be formed in a direction parallel to the width direction of the heating element 122, The length of the passage may have a size approximately equal to the width of the heating element 122.

In this case, the heater unit 120 may be disposed inside the housing 110 such that the passage is disposed parallel to the flow direction of the fluid passing through the interior of the housing 110.

Due to this, the fluid may be heated by heat provided from the heating element 122 in the process of passing through the heater unit 120. In addition, the fluid can smoothly pass through the heater unit 120 through the passage, thereby minimizing a decrease in flow velocity in the process of being heated by heat provided from the heating element 122.

In addition, the heater unit 120 may maximize the contact area in contact with the fluid by forming a plurality of passages formed along the width direction of the heating element 122 along the longitudinal direction of the heating element, and the fluid may include the heater unit ( In the process of passing through 120), it may be directly heated through the heating element 122. Through this, even if the fluid passes through the heater portion 120 along the passage in a short time, sufficient heat can be provided from the heating element 122 to sufficiently increase the temperature to a target temperature.

On the other hand, the heater unit 120 may include a plate-shaped support 124 disposed on one surface of the heating element 122 so as to maintain the shape of the heating element 122 wound in a spiral wound. Here, on one surface of the support 124, the acid parts of the heating elements 122 adjacent to each other may be contacted, or the bone parts of the heating elements 122 adjacent to each other may be contacted.

Accordingly, when the heating element 122 is wound in a spiral wound, the support 124 may also be wound in a spiral wound together with the heating element 122, and wound in a spiral wound on one or both sides of the support 124. A portion of the generated heating elements 122 may be respectively disposed.

Due to this, even if the heating element 122 is wound in a spiral shape, a part of the heating element 122 disposed on both sides of the support 124 faces each other through the support 124, such as an acid portion, an acid portion, or a bone portion and a bone portion. The overlap can be prevented. Through this, the heater portion 120 is a fluid passing through the interior of the housing 110, the passage formed between the hilltop and the hilltop or the hilltop and valleys facing each other can be maintained, the heater 120 It can pass smoothly.

In addition, the support 124 may be made of a metal material having thermal conductivity. Through this, the support 124 may simultaneously serve to maintain the shape of the heating element 122 and widen the heat transfer area for heating the fluid. That is, the support 124 may function as an auxiliary heat source for heating the fluid by heating the fluid using heat transferred from the heating element 122. In addition, the support 124 may be a metal material having corrosion resistance to prevent corrosion through contact with the fluid. As a non-limiting example, the support 124 may be anodized aluminum or stainless steel, but is not limited thereto, and may be used without limitation as long as it is a material having heat conductivity and corrosion resistance or a material having heat conductivity and corrosion resistance. .

On the other hand, the heating element 122 may be used without limitation in its structure or material in the form of a plate so as to generate heat for heating the fluid when power is applied and to increase the heat transfer area.

For example, the heating element 122 may include an exterior material 122a, a heating source 122b, an insulating layer 122c, and a pair of terminal terminals 122d, as illustrated in FIGS. 7 to 9, wherein The insulating layer 122c may be interposed between the exterior material 122a and the heat generating source 122b.

At this time, the heating element 122 according to an embodiment of the present invention, as described above, while widening the heat transfer area in contact with the fluid, while forming a passage through which the fluid can pass, the acid and valley portions are repeated along the longitudinal direction. Can be formed.

Accordingly, the heating element 122 according to an embodiment of the present invention can increase the heat exchange efficiency generated between the heating element 122 and the fluid by increasing the contact area in contact with the fluid.

To this end, the heating element 122 may be repeatedly formed with the peaks and valleys along the longitudinal direction, the peaks and valleys may be formed along the width direction of the heating element (122).

In this case, the hills and valleys may be formed only on the side of the exterior material 122a, or may be formed on the side of the heat generating source 122b together with the exterior material 122a. In addition, when the peaks and valleys are also formed in the heat generating source 122b together with the exterior material 122a, the peaks and valleys formed in the exterior material 122a may be formed to coincide with the peaks and valleys formed in the heat generation source 122b. .

Through this, the exterior material 122a and the heat generating source 122b can always perform the same behavior through the hills and valleys formed to coincide with each other, thereby preventing damage to the heat generating source 122b that may occur during different behaviors. You can.

That is, the heating element 122 may prevent the insulation from breaking by minimizing the contraction expansion rate along the longitudinal direction through the hills and valleys formed along the longitudinal direction.

In other words, the peaks and valleys formed in the heating source 122b and the peaks and valleys formed in the exterior material 122a are formed to coincide with each other, so that the material of the exterior material 122a and the heating source 122b constituting the heating element 122 or Even if the shrinkage expansion rate is different, this can be compensated.

Due to this, it is possible to prevent the insulating layer 122c interposed between the heat generating source 122b and the exterior material 122a from being broken or separated from the heat generating source 122b.

The exterior material 122a may be formed in a plate shape having a predetermined area, and the heat generating source 122b may be disposed inside the exterior material 122a. Through this, when the power is applied to the heating element 122, the heat generating source 122b may generate heat to generate heat.

That is, the exterior material 122a may serve to protect the heat generating source 122b accommodated therein and to disperse heat generated from the heat generating source 122b.

To this end, the exterior material 122a may be made of a metal material, and may be formed in a hollow shape with both ends open.

For example, the exterior material 122a may be an empty plate-shaped heat-conductive exterior tube, and the heat-conductive exterior tube may be a hollow metal tube made of copper or aluminum having excellent heat conductivity.

The heat-conducting outer tube may be formed in a plate shape by being pressed while the heat generating source 122b is inserted therein.

Here, the exterior material (122a) by first pressing the circular exterior material (122a) to change to an elliptical shape, and by pressing the exterior material (122a) in the state of inserting a heating source (122b) inside the exterior material (122a) It may be formed in a plate shape.

However, the method of forming the exterior material 122a in a plate shape is not limited thereto, and the exterior material 122a is plate-shaped through a single pressing process while the heat generating source 122b is inserted inside the exterior material 122a. It may be formed as.

The heat generating source 122b may be disposed inside the exterior material 122a and may generate heat when power is applied. At this time, the heat generating source 122b may be in the form of a plate having a predetermined width and length.

For example, the heat generating source 122b may be a plate-shaped metal sheet having a predetermined area, and aluminum or copper, an amorphous ribbon sheet, or percaloy may be used as the metal sheet.

Preferably, the heat generating source 122b may be a plate-shaped conductive member including at least one of cantal and pekalloy alloys to prevent crystallization due to repeated thermal fatigue exposure.

At this time, the heat generating source (122b) may be formed in a substantially 'c' shape, as shown in Figure 7 (a) to (d), the heat generating source (122b) is a pair of two free end side The terminal terminal 122d may be formed. Accordingly, in the heating element 122, the pair of terminal terminals 122d may be disposed at the same end side, and the heating source 122b may be evenly disposed over the entire area of the exterior material 122a.

However, the shape of the heat generating source 122b is not limited thereto, and may have various shapes as long as the two free ends can be formed to face the same direction. For example, the heat generating source 122b may have a shape in which the middle of the length is bent a plurality of times, such as approximately 'W' shape.

8 and 9, the insulating layer 122c is provided with an inner surface of the exterior material 122a and a heating source 122b to electrically insulate the exterior material 122a and the heat generation source 122b when power is applied. Can be placed between.

Accordingly, even if the exterior material 122a is made of a conductive metal material, electrical shorts that may occur between the heat generating source 122b and the exterior material 122a disposed inside the exterior material 122a can be prevented.

The insulating layer 122c may have insulating properties for electrical insulation, and may further have heat resistance to prevent damage due to heat generated from the heat generating source 122b.

For example, the insulating layer 122c may be a coating layer coated with a coating solution having insulation and heat resistance, or a film member made of a resin material having insulation and heat resistance may be attached through an adhesive layer.

Preferably, the insulating layer 122c may be a hollow insulating tube made of a resin material having insulating and heat resistance.

That is, the insulating layer 122c may be formed in a hollow shape with both ends open, as in the case of the exterior material 122a, as shown in FIG. 7 (c), and the heating source 122b is inserted therein. The heat generating source 122b may be completely covered.

Accordingly, the insulating layer 122c may be inserted into the inside of the heat-conducting sheath tube constituting the sheath material 122a while the heat-generating source 122b is inserted therein, and the heat-conducting sheath tube is pressurized. When it is changed to a plate shape, it may be disposed between the heat generating source 122b and the exterior material 122a.

In the present invention, the insulating tube may be a polymer resin having heat resistance and insulation properties such as polyimide (PI), but is not limited thereto, and any material known in the art may be used as long as it is a material having heat resistance and insulation properties.

The terminal terminal 122d may be connected to an external power source so that power can be supplied to the heating source 122b from the outside. To this end, the terminal terminal 122d may be provided as a pair on the free end side of the heating source 122b as described above.

That is, the terminal terminal 122d may be made of a conductive material, and may be configured as a pair to perform the roles of the (+) terminal and the (-) terminal.

At this time, the terminal terminal (122d) may be a hollow metal tube made of a metal material as shown in (b) to (d) of Figure 7, while surrounding a certain length of the end side of the heating source (122b) At least a portion of the length may be provided to protrude to the outside of the exterior material (122a).

Accordingly, the heating element 122 may be disposed in the interior of the exterior material 122a, the heating source 122b in a state where the terminal terminal 122d is coupled to the end side of the heating source 122b, and the exterior material ( Like 122a), the terminal terminal 122d may be formed in a plate shape through pressing.

Here, the above-described insulating layer 122c is interposed between the inner surface of the facing material 122a facing each other and one surface of the terminal terminal 122d, so that the terminal terminals 122d are electrically connected to each other even if they partially overlap with the facing material 122a. Insulation can be maintained.

On the other hand, the terminal terminal (122d) may be formed with a valley and a valley for a portion of the entire length. That is, the terminal terminal (122d) is inserted into the interior of the exterior material (122a) of the entire length as shown in FIG. 8, the area and the valley may be formed more than once in the region overlapping have.

Accordingly, the terminal terminal 122d is prevented from being separated from the exterior material 122a through the hills and valleys formed in an area overlapping the exterior material 122a, thereby mutually connecting the terminal terminal 122d to the exterior material 122a. A separate adhesive member for fixing may be omitted.

The control unit 130 may control the overall operation of the instantaneous hot water device 100. For example, the control unit 130 may control driving of the instantaneous hot water device 100 by supplying or blocking power to the heater unit 120 side.

To this end, the control unit 130 may include at least one circuit board 132 and may include at least one chipset 134 mounted on one surface of the circuit board 132. In addition, the circuit board 132 may be electrically connected to each other with at least one heater unit 120 embedded in the housing 110.

That is, as shown in FIG. 3, a pair of terminal terminals 122d protruding from the inside of the housing 110 to the outside through the through hole 115 of the cover plate 114 is the circuit board 132. By being connected to the control unit 130 and the heater unit 120 may be electrically connected to each other.

To this end, the circuit board 132 may be disposed outside the housing 110 as shown in FIG. 3, and the circuit board 132 of the housing 110 may be protected from an external environment. It may be embedded in a separate cover member 140 coupled to one side.

Accordingly, the heater unit 120 may be heated using power supplied through the control of the control unit 130.

Here, the control unit 130 may be supplied with driving power by being electrically connected to an external power source via a cable, or may be supplied with driving power from a battery built in itself.

Meanwhile, the instantaneous hot water device 100 according to an embodiment of the present invention may further include at least one temperature sensor 150.

That is, the temperature sensor 150 may be disposed on the central side of the heater unit 120 as shown in FIG. 10, and may be electrically connected to the circuit board 132.

The temperature sensor 150 may be provided in at least one or more types, and the heating temperature of the heating element 122 may be measured. Accordingly, the control unit 130 may control the driving of the heater unit 120 based on the heating temperature measured through the temperature sensor 150.

As a non-limiting example, the temperature sensor 150 may be provided with three types of sensors, and the three types of sensors include a temperature control sensor for controlling the heating element 122 to a first temperature range, When the heating temperature of the heating element 122 is raised to the second temperature, the sensor for overheat protectors that temporarily cuts off the power and the physical power supply when the heating temperature of the heating element 122 is raised to the third temperature It may include a blocking sensor for blocking.

Here, the second temperature range may be relatively higher than the first temperature range and may be relatively lower than the third temperature range.

Accordingly, the control unit 130 may control driving of the heater unit 120 through the three types of sensors. Specifically, the control unit 130 may uniformly heat the heating element 122 to a first temperature range by supplying or blocking power to the heater unit 120 based on the temperature measured by the temperature control sensor. have. In addition, when the heating element 122 generates heat in the second temperature range, the control unit 130 temporarily cuts off the power supplied to the heater unit 120 so that the heater unit 120 may be damaged by overvoltage. You can avoid danger. In addition, when the heating element 122 generates heat in the third temperature range, the control unit 130 may completely block the supply of power to the heater unit 120 through the blocking sensor.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention may add elements within the scope of the same spirit. However, other embodiments may be easily proposed by changing, deleting, adding, or the like, but this will also be considered to be within the scope of the present invention.

Claims

A hollow housing connected on the flow path;

At least one heater unit disposed along the longitudinal direction in the interior of the housing to heat the fluid passing through the interior of the housing; And

Includes; a control unit for controlling the operation of the heater unit,

The heater unit is an instantaneous hot water device in which a plate-shaped heating element is formed in a spiral wound wound a plurality of times to allow the fluid to pass therethrough.
According to claim 1,

The housing includes an opening that is cut in the longitudinal direction from one end, and the heater unit is an instantaneous hot water device in which a pair of terminal terminals are exposed to the outside through the opening and electrically connected to the control unit.
According to claim 2,

The instantaneous hot water device includes a plate-shaped cover plate that seals the opening,

The cover plate is an instantaneous hot water device including a through hole formed in a region corresponding to the heater portion so that the pair of terminal terminals can pass through.
According to claim 3,

The cover plate is an instantaneous hot water device further comprising a protrusion projecting outward along the rim of the through hole.
According to claim 3,

The passage hole is an instantaneous hot water device in which a sealing member is disposed inside.
According to claim 1,

The heater unit, the heating element is bent to be repeated so that the peaks and valleys along the longitudinal direction; And

Instantaneous hot water device comprising a; plate-shaped support disposed on one surface of the heating element to maintain the shape of the heating element.
The method of claim 6,

The heating element,

A plate-shaped exterior material having a certain area;

A heat generating source disposed inside the exterior material and generating heat when power is applied;

An insulating layer disposed between the heating source and the exterior material; And

And a pair of terminal terminals provided at both ends of the heating source and projecting outwardly of the exterior material.
The method of claim 7,

The heat source is an instantaneous hot water device of any one of an amorphous ribbon sheet or percaloy.
The method of claim 7,

The heating source is an instantaneous hot water device that is provided in a 'U' shape.
The method of claim 7,

The terminal terminal is a plate-shaped metal tube surrounding the end of the heat source,

The insulating layer is a plate-shaped insulating tube that simultaneously surrounds the heating source and a part of the metal tube,

The exterior material is an instantaneous hot water device that is a plate-shaped thermally conductive exterior tube surrounding the insulating tube.
The method of claim 10,

The metal tube and the external tube are instantaneous hot water devices formed in a plate shape through pressure.
The method of claim 7,

The pair of terminal terminals are instantaneous hot water devices in which a portion disposed inside the exterior material is bent at least once.
According to claim 1,

The control unit includes a circuit board disposed on one side of the housing, and the heater unit is an instantaneous hot water device in which a pair of terminal terminals are electrically connected to the circuit board.
According to claim 1,

The instantaneous hot water device further comprises at least one temperature sensor disposed in the heater unit.