KR200472948Y1 - Hot-water boiler improved assembly - Google Patents

Hot-water boiler improved assembly Download PDF

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Publication number
KR200472948Y1
KR200472948Y1 KR2020130002905U KR20130002905U KR200472948Y1 KR 200472948 Y1 KR200472948 Y1 KR 200472948Y1 KR 2020130002905 U KR2020130002905 U KR 2020130002905U KR 20130002905 U KR20130002905 U KR 20130002905U KR 200472948 Y1 KR200472948 Y1 KR 200472948Y1
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KR
South Korea
Prior art keywords
board
fixing
case
hot water
control board
Prior art date
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KR2020130002905U
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Korean (ko)
Inventor
공영삼
Original Assignee
(주) 아이에스-텍
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Publication date
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Priority to KR2020130002905U priority Critical patent/KR200472948Y1/en
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Publication of KR200472948Y1 publication Critical patent/KR200472948Y1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/06—Mattress underlays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/06—Casings, cover lids or ornamental panels, for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/06—Portable or mobile, e.g. collapsible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/08—Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2028—Continuous-flow heaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to a miniature hot water boiler with improved assemblability that can be applied to a hot water mat, and more particularly, it can reduce manufacturing cost and improve productivity by making it possible to perform the assembly process quickly and easily. The present invention relates to a small-sized hot water boiler with improved assemblability that can improve durability by effectively reducing the size and appearance of the structure and simplifying the structure and improving the merchantability.
A compact hot water boiler having improved assemblability according to the present invention is a small hot water boiler comprising a case body which is composed of an upper case and a lower case and is coupled to each other, a water tank installed in the case body, And a control board installed to control the driving of the circulation pump and the heating device, wherein the power board is inserted and seated, A plurality of board seating portions formed on an inner surface of the lower case to be able to support the boards; A board mount installed on the board mount part to be disposed on the power board and on which the control board is mounted; And a board fixing part protruding downward on the inner surface of the upper case to support the control board.
According to this, since the assembling process is completed by only the fastening operation of the fastening member for fixing the upper and lower cases, the assembling process can be minimized, the productivity can be improved, the assembling cost and the raw material cost can be reduced, Can be reduced. In addition, since the power board and the control board can be arranged vertically, the size and volume of the appearance can be minimized, and the product can be manufactured in a compact manner, thereby improving the merchantability and securing market competitiveness.

Description

[0001] HOT WATER BOILER IMPROVED ASSEMBLY [0002]

The present invention relates to a miniature hot water boiler with improved assemblability that can be applied to a hot water mat, and more particularly, it can reduce manufacturing cost and improve productivity by making it possible to perform the assembly process quickly and easily. The present invention relates to a small-sized hot water boiler with improved assemblability that can improve durability by effectively reducing the size and appearance of the structure and simplifying the structure and improving the merchantability.

Generally, heating of a house or an office is carried out by circulating hot water generated from a boiler by hot water piping embedded in the floor. Gas boilers and oil boilers are used in boilers depending on the types of fuel, but these boilers have a disadvantage that the heating cost is excessively high because they use expensive fossil fuels.

As a result, the use of electric heating devices such as electric plates has been increasing as an auxiliary heating device. However, since the electric plates use the heating action of the heating line, there is a risk that the risk of fire is high and harmful electromagnetic waves are generated.

Due to the problems of such electric plates, hot water mat heating apparatuses having the advantages of traditional hot water heating and electric plates have been widely used in recent years.

The hot water mat heating system consists of a mat with a hot water hose and a small hot water boiler to generate and supply hot water to the hot water hose.

Small hot water boiler is a key device to generate and supply hot water, and various research and development are being done because it is a main factor that determines heating efficiency. For example, a small electric boiler 40 disclosed in Korean Patent Registration No. 10-0934737 includes a case 410 divided into an upper case 411 and a lower case 412 as shown in FIGS. 1A and 1B, A water tank 420 having an upper water tank 421 and a lower water tank 423 formed with a water supply hole 422 and provided inside the case 410 and having a heating body 424 for heating water, A circulation pump 430 connected to the water tank 420 for circulating hot water and a cap 440 having a water supply hole 422 formed therein and having a pressure regulating part 450 formed therein Respectively.

The case 410 is divided into upper and lower cases 411 and 412. The case 410 includes a water tank 420, a circulation pump 430, a power board 401 for inputting power and a microcomputer board 402 And has an acceptable space portion.

The first circuit board separation receiving portions 411a and 412b are formed on the side surfaces of the upper case 411 and the lower case 412, respectively, in the case where the power board 401 and the microcomputer board 402 are accommodated. And the power board 401 is mounted on the first circuit board separation accommodating portions 411a and 412b. The upper case 411 is provided with a second circuit board accommodating portion 413 on its front side to accommodate the microcomputer board 402 separately from the power board 401.

However, the above-mentioned conventional small electric boiler has various problems and limitations due to the independent mounting of the power board 401 and the microcomputer board 402 orthogonally to each other.

First, in the conventional small electric boiler, first circuit board separating receptacles 411a and 412b should be formed on the sides of the upper case 411 and the lower case 412 for mounting the power board 401, Since the second circuit board accommodating portion 413 must be provided in the upper case 411 for mounting the second circuit board 402, the volume of the case 410 is excessively large, so that the product can not be manufactured compactly, As a result, the market competitiveness is weakened.

In the conventional small electric boiler, since the volume of the case 410 is large and complicated, the material cost is increased due to the increase in the consumption amount of the raw material, and the power board 401 and the microcomputer board 402 are individually assembled, The productivity is lowered.

The present invention provides a small hot water boiler with improved assemblability that can reduce the manufacturing cost and improve the productivity by allowing the assembling process to be performed quickly and simply, There is a purpose.

Another object of the present invention is to provide a compact hot water boiler with improved assemblability that can improve the merchantability and simplify the structure and reduce the size and volume of the appearance, .

In order to achieve the above object, a small hot water boiler having improved assemblability according to the present invention is a miniature hot water boiler comprising a case body formed of an upper case and a lower case and coupled to each other, a water tank provided in the case body, A circulation pump for sucking and circulating the water accommodated in the circulation pump, a heating device for heating the water, a power board installed for inputting power, and a control board installed to control driving of the circulation pump and the heating device, A plurality of board seating parts formed on an inner surface of the lower case so that the power board is inserted and seated; A board mount installed on the board mount part to be disposed on the power board and on which the control board is mounted; And a board fixing part protruding downward on the inner surface of the upper case to support the control board.

The board mount part may be formed as a fixing protrusion, the board mount may include a mounting body disposed to be spaced apart from the power board, a connection part formed on the mounting body to be connected to the fixing protrusion, And a plurality of auxiliary board receiving portions on which the plurality of auxiliary board receiving portions are mounted.

The fixing protrusion may include a first fixing part protruding from the inner surface of the lower case and a second fixing part protruding from the upper side of the first fixing part so that the outer diameter of the power board may be reduced, A pair of horizontal members which are connected to each other and which are connected between the horizontal members and which are upwardly and upwardly protruded in a front and rear direction; And the auxiliary board seating part may be formed as a secondary fixing protrusion having a step so that a connection hole portion drilled in the control board is inserted and supported.

The inner case of the lower case includes a water tank fixing boss protruding from the bottom of the water tank to be inserted into the water tank mounting protrusion, a heater fixing boss protruded to insert a fixing hole of the heater mounting part formed in the heating device, A plurality of case fixing bosses protruding for engagement of the case fixing bosses may be provided.

A case fixing boss formed on an inner surface of the upper case at a position corresponding to the case fixing boss and connected to each other by a fastening member, and a water injection unit protruding correspondingly to an inlet of the water tub.

According to the small hot water boiler with improved assemblability according to the present invention, since the assembling process is completed by only the fastening operation of the fastening member which is simple in structure and simple and the upper and lower cases are fixed, the number of assembling steps can be minimized, , Assembly cost and raw material cost can be reduced, thereby reducing production cost.

According to the present invention, it is possible to arrange the power board and the control board up and down according to the small-sized hot water boiler with improved assemblability, thereby minimizing the size and volume of the appearance, and making the product compact, , Which has the advantage of securing market competitiveness.

In particular, according to the present invention, even when the power board and the control board are arranged vertically, the vertical spacing is kept constant by the board mounting board, and the heat radiation characteristics are improved, thereby causing malfunction or failure And the durability is improved.

FIGS. 1A and 1B are views for explaining a conventional miniature hot water boiler,
FIG. 2 is a perspective view showing a compact hot water boiler with improved assemblability according to an embodiment of the present invention; FIG.
FIGS. 3A and 3B are an exploded perspective view of a miniature hot water boiler with improved assemblability according to an embodiment of the present invention;
FIG. 4A is a perspective view showing the lower case, FIG. 4B is a perspective view showing the bottom of the upper case, FIG.
5A to 5D are views for explaining a process of assembling a small hot water boiler with improved assemblability according to an embodiment of the present invention.

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a small-sized hot water boiler having improved assemblability according to an embodiment of the present invention, And FIG. 4B is an enlarged perspective view of the main part, FIG. 4A is a perspective view showing the lower case, and FIG. 4B is a perspective view showing the bottom part of the upper case.

2 to 3B, a compact hot water boiler with improved assemblability according to an embodiment of the present invention includes a case body 1, a water tank 2, a circulation pump 3, a heating device 4, (5), and a control board (6).

The case body 1 is constituted by a lower case 11 and an upper case 12 as a part forming an outer body of the hot water boiler as shown in FIG.

4A, the lower case 11 is provided with a water tank mounting protrusion (not shown) protruding from the bottom surface of the water tank 2 on the inner surface of the lower case body 111 formed with the edge portion protruding upward so that a receiving space is formed therein A heater fixing boss 113 protruded so as to insert a fixing hole of a heater mounting portion 44 formed in the heating device 4 and a fixing boss 113 A plurality of case fixing bosses 114 protruding from the edge portions are formed.

The lower case 11 is formed with a heat dissipating unit 119 having a plurality of slits perforated to radiate heat emitted from the heating device 4 or the like.

The upper case 12 is formed to correspond to an upper portion of the lower case 11 as shown in FIG. 4B. The upper case 12 has an upper case body 121 protruding downward so that a receiving space is formed therein. A case fixing boss 124 formed at a position corresponding to the case fixing boss 114 of the lower case 11 and connected to each other by a fastening member and an inlet port 22 of a water tank 2 And a water injection portion 122 protruding therefrom is formed. Further, the lower case 11 is formed with an installation hole 123 to which an input unit and a display unit, which will be described later, are installed.

At this time, as shown in FIG. 4B, the water injecting part 122 is formed with a screen part to block foreign substances from flowing into the water tub 2 when water is introduced. There is no limitation to the shape of the screen portion, provided that the screen portion has the efficiency of removing foreign matter. However, in this embodiment, the slit 122a is formed in the horizontal and vertical directions.

As shown in FIG. 3bdp, the water injection unit 122 is provided with a cap-shaped stopper body 81 provided with a handle 73, and a water injection unit 122 hermetically provided at a lower portion of the stopper body 71 And the stopper 7 formed with the stopper connecting portion 72 to be connected is fastened.

Meanwhile, the upper and lower cases 11 and 12 described above are characterized in that the structure is simplified, simplified, and the assembly process can be performed quickly and simply. For this purpose, as shown in FIG. 3B, A plurality of board seating portions 115 formed on the inner surface of the lower case 11 so as to be inserted and seated on the power board 5 and a board mounting portion 115 disposed on the board seating portion 115, And a board fixing part 125 (see FIG. 4B) which protrudes downward on the inner surface of the upper case 12 to press and support the control board 6 are provided.

As shown in FIG. 4A, the board seating part 115 is formed as a fixing protrusion protruding in a bar shape. The fixing protrusion includes a conical first fixing part (not shown) protruding from the inner surface of the lower case 11 A first fixing part 115a is formed so that a connection hole 51 formed in the power board 5 and a step 115c in which a connection part 82 of the board mounting table 8, And a second fixing part 115b protruding from the upper part of the first fixing part 115 so as to have a reduced outer diameter.

The board mount 8 includes a mounting body 81 spaced apart from the power board 5, a connection portion 82 formed on the mounting body 81 to be connected to the board mounting portion 115, And a plurality of auxiliary board seating portions 83 formed on the board 81 and on which the control board 6 is seated.

Although the mounting body 81 may be formed in a rectangular plate shape, when it is formed in the shape of a rectangular plate, malfunctions may be caused due to defective discharge of the heat emitted from the power board 5 and the control board 6, In the present embodiment, it is formed in a substantially rectangular frame shape.

More specifically, the mounting body 81 includes a pair of transverse members 811 in which a thin plate-shaped member having a bar shape is spaced apart and arranged in parallel, the connecting portion 82 is projected downward at both ends, A pair of longitudinal members 812 having a pair of auxiliary board seating portions 83 projecting upward and rearward are disposed in parallel to each other so as to be spaced apart from each other in parallel, Consists of.

The auxiliary board seating portion 83 is composed of auxiliary fixing projections having a step so that the connection hole 61 formed in the control board 6 is inserted and supported. At this time, the outer diameter of the stepped portion is larger than the inner diameter of the connection hole 61 of the control board 6, so that the cone roller board is not lowered while being fitted, and the vertical distance from the power board 5 is kept constant.

The board fixing portion 125 is not limited in shape or structure so long as it can be fixed firmly without being connected to the control board 6 even if the control board 6 is not fastened with a separate fastening member such as a screw. And is formed of two pressing pieces having a rectangular shape on the front bottom surface.

Meanwhile, as shown in FIGS. 3A and 3B, the water tank 2 is a storage container which is inserted between the upper and lower cases 12 and 11 and receives water to be circulated and supplied to a hot water mat (not shown) The water tank main body 21 formed to have a storage space of a predetermined size according to the capacity of the hot water mat is formed with an inlet port 22 communicating with the water injection portion 122 and the water tank fixing boss 112 The water tank mounting projection 23 is protruded on the bottom surface. At this time, a hermetic member 127 such as an O-ring is interposed around the inlet 22 to be watertightly connected to the water injection unit 122.

The circulation pump 3 is a component that sucks the water contained in the water tank 2 and press-feeds the water to a hot water hose (not shown). The circulation pump 3 includes a pump case 31, an impeller (not shown) And a motor (not shown) for rotating the motor. A suction pipe (not shown) connected to the water tub 2 and a discharge pipe 34 connected to the heating device 4 are formed in the pump case 31.

The heating device 4 includes a heater case 41, a heating plate (not shown) incorporated in the heater case 41, and a heater (not shown) to which heat is applied to the heating plate An inlet pipe 42 provided in the heater case 41 is connected to a discharge pipe 34 of the pump case 31 via a connection hose and an outlet pipe 43 provided in the heater case 31, And a hot water hose (not shown) connected to the hot water mat. The heater case 41 is formed with a heater mounting portion 44 having a fixing hole so as to be connected to the heater fixing boss 113 of the lower case 11.

A power board (5) is a component installed for inputting a power source. A plurality of electric and electronic elements are installed on a printed circuit board to control and control the supplied commercial power according to the rated voltage or current of various devices .

The control board 6 is a component installed to control the driving of the circulation pump 3 and the heating device 4 and includes an input unit 63 for inputting control signals, An alarm unit 65 such as a warning lamp provided to warn the user of abnormality of the hot water mat or various devices, and the like are provided on the printed circuit board.

The input unit 63 includes an on / off switch 63a for performing on / off operation of the power source, a temperature control switch 63b for controlling the temperature of the hot water mat, However, the input unit and the display unit may be modified by various known devices such as a touch panel type.

Hereinafter, the operation of the small hot water boiler with improved assemblability according to one embodiment of the present invention will be described.

5A to 5D are views for explaining an assembling process of a miniature hot water boiler with improved assemblability according to an embodiment of the present invention, wherein FIG. 5A is a view showing an assembly state of a water tank, a circulating pump, FIG. 5C is a perspective view showing a state in which the board mounting board is installed, and FIG. 5D is a perspective view showing a state in which the control board is installed.

The heating device 4 is assembled in such a manner that the heater mounting portion 44 is connected to the heater fixing boss 113 of the lower case 11 and the circulation pump 3 is attached to the water tub 2, The circulation pump 4 and the heating device (not shown) are inserted into the water tank fixing boss 112 of the lower case 11 after the water tank mounting projections 23 projected on the bottom surface of the water tank 2 are inserted into the water tank fixing bosses 112 of the lower case 11 4 are completed.

5B, when the connection hole 51 of the power board 5 is inserted into the board seating portion 115 of the lower case 11, the board is seated in the step 115c, So that it can be stably fixed and fixed. Then, as shown in FIG. 5C, the board mounting table 8 is positioned above the power board 5, and the connecting portion 82 is installed to be inserted into the second fixing portion 115b.

When the board mount 8 is installed as shown in FIG. 5D, if the connection hole 61 penetrated through the control board 6 is inserted into the auxiliary board mount 83, Since the connecting hole 61 of the control board 6 is hooked to the step, the top and bottom of the cone board 6 are not lowered and the vertical distance from the power board 5 is kept constant.

When the assembly of the power board 5 and the control board 6 is completed, the upper case 12 is positioned coaxially with the lower case 11 as shown in FIG. 3A, When a fastening member such as a screw is inserted and fastened to the case fixing bosses 114 and 124 of the cases 11 and 12, assembly of the miniature hot water boiler is completed as shown in FIG. When the upper case 11 is coupled as described above, the lower end portion of the board fixing portion 125 formed on the bottom surface thereof is seated on the upper surface of the control board 6, so that the control board 6 can be stably supported without shaking.

As described above, since the assembling process is completed by only the fastening operation of the fastening members for fastening the upper and lower cases 11 and 12, the assembly water can be minimized and the productivity can be improved , Assembly costs and raw material costs can be reduced, thereby reducing production costs.

As described above, the present invention is not limited to the above-described embodiment, but may be applied to a small-sized hot water boiler having improved assemblability according to the present invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

1: Case body 11: Lower case
111: Case body 112: Water tank fixing boss
113: heater fixing boss 114: case fixing boss
115: board seating part 12: upper case
121: upper case body 122: water injection part
123: Installation hole 125: Board fixing section
2: water tank 3: circulation pump
4: Heating device 5: Power board
6: control board 63: input part
64: display section 65: alarm device
8: Board mounting base 81: Mounting body
811: transverse member 812: longitudinal member
82: connecting portion 83: auxiliary board seating portion

Claims (4)

In miniature hot water boilers,
A water supply tank installed inside the case body, a circulation pump for sucking and circulating the water contained in the water tank, a heating device for heating the water, A power board, and a control board installed to control driving of the circulation pump and the heating device,
A plurality of board seating parts formed on an inner surface of the lower case so that the power board is inserted and seated;
A board mount installed on the board mount part to be disposed on the power board and on which the control board is mounted; And
And a board fixing part protruding downward from an inner surface of the upper case to support the control board.
The method according to claim 1,
Wherein the board seating part is formed as a fixing protrusion,
The board mount includes a mounting body disposed to be spaced apart from the power board, a connection portion formed on the mounting body to be connected to the fixing protrusion, and a plurality of auxiliary board mounting portions formed on the mounting body and on which the control board is mounted Small-sized hot water boiler with improved assemblability.
3. The method of claim 2,
Wherein the fixing protrusion includes a first fixing portion protruding from an inner surface of the lower case and a second fixing portion protruding from the upper portion of the first fixing portion so as to have a reduced outer diameter,
A pair of longitudinal members spaced apart from each other in parallel and spaced apart from each other and projecting downwardly at both ends of the mounting body; and a pair of longitudinal members connected between the lateral members and projecting upwardly and upwardly from the auxiliary board seat portion Respectively,
Wherein the auxiliary board seating part comprises auxiliary fixing projections having a step so that a connection hole portion drilled in the control board is inserted and supported.
4. The method according to any one of claims 1 to 3,
A water tank fixing boss protruding from a bottom surface of the water tank to protrude into the water tank mounting protrusion; a heater fixing boss protruded to receive a fixing hole of the heater water heater installed in the heating device; A plurality of case fixing bosses protruded for the case,
And a case fixing boss formed on an inner surface of the upper case at a position corresponding to the case fixing boss and connected to each other by a fastening member and a water injection unit protruding correspondingly to an inlet of the water tub. Small hot water boiler.
KR2020130002905U 2013-04-15 2013-04-15 Hot-water boiler improved assembly KR200472948Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101885347B1 (en) 2017-04-11 2018-08-06 김종현 Boiler casing for easy assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090050184A (en) * 2007-11-15 2009-05-20 주식회사 토원 Small electric boiler and hot water mat apparatus having the same
KR20100006721A (en) * 2008-07-10 2010-01-21 주식회사 한지백전자 Warmth boiler
KR20120052714A (en) * 2010-11-16 2012-05-24 (주)제이앤씨트레이딩 Hot water boiler for hot water mat
KR20120057007A (en) * 2010-11-26 2012-06-05 (주) 아이에스-텍 Heating apparatus for small size hot-water boiler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090050184A (en) * 2007-11-15 2009-05-20 주식회사 토원 Small electric boiler and hot water mat apparatus having the same
KR20100006721A (en) * 2008-07-10 2010-01-21 주식회사 한지백전자 Warmth boiler
KR20120052714A (en) * 2010-11-16 2012-05-24 (주)제이앤씨트레이딩 Hot water boiler for hot water mat
KR20120057007A (en) * 2010-11-26 2012-06-05 (주) 아이에스-텍 Heating apparatus for small size hot-water boiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101885347B1 (en) 2017-04-11 2018-08-06 김종현 Boiler casing for easy assembly

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