KR101488508B1 - Hot water mat pump assembly - Google Patents

Hot water mat pump assembly Download PDF

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Publication number
KR101488508B1
KR101488508B1 KR20140082699A KR20140082699A KR101488508B1 KR 101488508 B1 KR101488508 B1 KR 101488508B1 KR 20140082699 A KR20140082699 A KR 20140082699A KR 20140082699 A KR20140082699 A KR 20140082699A KR 101488508 B1 KR101488508 B1 KR 101488508B1
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KR
South Korea
Prior art keywords
impeller
receiving groove
hot water
support shaft
magnet
Prior art date
Application number
KR20140082699A
Other languages
Korean (ko)
Inventor
정판성
유연구
Original Assignee
(주)컴포텍
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Priority to KR20140082699A priority Critical patent/KR101488508B1/en
Application granted granted Critical
Publication of KR101488508B1 publication Critical patent/KR101488508B1/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
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/048—Devices for ventilating, cooling or heating for heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/064—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a pump assembly for a hot water mat which includes: a main body having a plurality of accommodation grooves formed; a magnet unit inserted into the main body, having a first hollow portion formed on the center; a field magnet installed in the main body to rotate the magnet unit; an impeller inserted inside the magnet unit to be rotated together with the magnet unit; a support shaft installed inside the main body to rotatably support the impeller; a support plate coupled to a lower end of the impeller below the magnet unit to support the magnet unit with respect to the impeller; and a cover coupled to an upper portion of the main body. According to the present invention, a pump assembly for a hot water mat easily removes vapor formed inside a pump chamber in accordance with the rotation of the impeller, thereby facilitating circulation of hot water. Also, the pump assembly for a hot water mat prevents damages caused by thermal deformation of the impeller due to the temperature of the circulated water, thereby effectively supplying hot water.

Description

Hot water mat pump assembly < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump assembly for a hot water mat, and more particularly, to a pump assembly for a hot water mat for supplying hot water to a mat and circulating hot water.

Electric mats or hot water mats are generally used as auxiliary heating devices in winter homes. Since the electric mats among the mats mentioned above use a large amount of electricity due to the use of the heating wires, there is a strong perception that electric power is consumed and an electromagnetic wave harmful to the human body is generated at the same time, and demand is gradually reduced. On the other hand, There is a relatively low risk, and demand is gradually increasing.

The hot water mat described above is usually provided with a hot water line in a mat and circulates hot water by a pump or the like. The hot water mat supplies electric energy to a heater that is an electric resistor, heats water with heat generated during electricity supply, And heat the mat by circulating the mat while exchanging heat.

The pump used in the hot water mat is usually provided with an impeller rotated by a motor, and water can be sucked and discharged by the impeller. A conventional impeller type pump includes a motor; An impeller rotated by a motor; And a body having a pump room installed at a lower portion of the motor and having an impeller therein, a suction port through which the hot water flows into the lower portion of the pump chamber, and an outlet for discharging the hot water introduced into the pump chamber into the mat, It is heated.

That is, when the hot water flows into the mat from the hot water tank, the circulation pump operates to continuously circulate hot water in the mat, thereby heating the mat as a whole.

However, in the conventional impeller type pump, there is a possibility that the pump is overheated due to the continuously rotating impeller for pumping water and the load is generated, and the device may be burned. In addition, foreign matter This may cause a malfunction such as idling of the impeller, which may reduce the reliability of the apparatus. Further, due to the above-described failure, noise is generated during rotation of the impeller, which is inconvenient for use of the hot water mat . ≪ / RTI >

In addition, in the conventional impeller type pump as described above, bubbles are generated in the pump chamber as the impeller rotates. However, circulation of hot water can not be smoothly performed due to the generation of bubbles, There is a problem that thermal deformation occurs due to repetition of expansion and contraction to cause damage, and hot water can not be efficiently supplied into the mat.

KR 10-1204344 B1 KR 10-2008-0105199 A KR 20-0413909 Y1

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an air conditioner capable of smoothly circulating hot water by easily removing air bubbles generated in a pump chamber as the impeller rotates, So that it is possible to effectively supply hot water.

In order to achieve the above object, a pump assembly for a hot water mat according to the present invention includes a first receiving groove formed at an upper side thereof and a second receiving groove formed at a bottom center of the first receiving groove, And a third receiving groove formed upwardly along an edge region corresponding to the second receiving groove; A magnet portion inserted into a second receiving groove of the main body and having a first hollow portion at a center thereof; A magnet inserted into the third receiving groove to rotate the magnet unit; An impeller inserted into the first hollow portion and rotated together with the magnet portion; A support shaft installed in the second receiving groove for rotatably supporting the impeller; A support plate coupled to a lower end of the impeller at a lower portion of the magnet portion to support the magnet portion with respect to the impeller; A first inlet groove is formed in the bottom of the main body so as to be upwardly inserted into the first receiving groove to provide a rotational space in which the impeller blades can be rotated together with the first receiving groove, And an outlet formed at one side for discharging the water introduced into the rotary space to the outside of the rotary space by rotation of the impeller. do.

A plurality of first protrusions protruding from the inner circumferential surface of the first hollow portion toward the center of the first hollow portion and contacting the outer circumferential surface of the impeller are formed in the magnet portion of the pump assembly for the hot water mat according to the circumferential direction The impeller being inserted into the first hollow portion and having a second hollow portion extending vertically so as to allow the support shaft to pass therethrough; and a second hollow portion formed on the upper portion of the body, An extension plate extending radially so as to have a diameter and having a through hole having a diameter corresponding to the diameter of the support shaft at a center thereof and a plurality of blades radially arranged on an upper surface of the extension plate, And protruding radially from the outer circumferential surface of the body in a corresponding pattern to contact the inner circumferential surface of the magnet portion A plurality of second locking protrusions are formed at predetermined intervals along a circumferential direction of the body.

In the magnet portion of the pump assembly for a hot water mat according to the present invention, when water flows into the rotary space, the magnet passes through the upper and lower portions to allow the air remaining in the second receiving groove of the body to pass upward, And a plurality of first air vent holes spaced apart from each other are formed.

In the expansion plate of the pump assembly for a hot water mat according to the present invention, when water flows into the rotary space, the expansion plate passes through the upper and lower portions of the expansion plate to allow air remaining in the second hollow portion of the impeller to pass to the upper portion of the expansion plate, And a plurality of second air vent holes are formed to be spaced along the periphery of the hole.

In the center of the lid of the pump assembly for a hot water mat according to the present invention, there is formed a coupling portion having a fitting groove which is pulled upward from a bottom surface so as to rotatably engage the upper end of the supporting shaft, And a cushioning cap for preventing the support shaft from being bent is further interposed therebetween.

The pump assembly for a hot water mat according to the present invention further comprises a ceramic bushing interposed between the support shaft and the body to occupy the second hollow portion.

The pump assembly for a hot water mat according to the present invention is characterized in that a hole is formed at the center so that the support shaft can pass therethrough and is formed at the center of the bottom of the second receiving groove of the main body, And a poly-washer which is seated on an upper surface of the support shaft and keeps the rotation center of the support shaft when the support shaft rotates.

The pump assembly for a hot water mat according to the present invention has the advantage of facilitating the circulation of hot water by easily removing bubbles generated in the pump chamber as the impeller rotates.

In addition, the pump assembly for a hot water mat according to the present invention has an advantage of being able to supply hot water effectively by preventing breakage and damage due to thermal deformation of the impeller due to the temperature of circulated water.

1 is an exploded perspective view of a pump assembly for a hot water mat according to a first embodiment of the present invention;
2 is a sectional view of the pump assembly for the hot water mat shown in Fig.
3 is an exploded perspective view of a pump assembly for a hot water mat according to a second embodiment of the present invention;
FIG. 4 is a plan view of an impeller showing a structure formed in a second air passage hole in the impeller shown in FIGS. 1 to 3. FIG.

Hereinafter, a pump assembly for a hot water mat according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show a pump assembly for a hot water mat according to a first embodiment of the present invention. 1 and 2, a pump assembly for a hot water mat according to a first embodiment of the present invention includes a main body 100 having a receiving groove; A magnet unit 200 inserted into the main body 100; A field magnet (300) for rotating the magnet portion (200); An impeller 400 rotated together with the magnet unit 200; A support shaft 470 rotatably supporting the impeller 400; A support plate 460 for supporting the magnet unit 200 to the impeller 400; And a lid 500 coupled to the main body 100.

The main body 100 is formed with a circular first receiving recess 111 which is drawn downward and a circular second receiving recess 112 which is drawn downward at the bottom center of the first receiving recess 111, And an annular third receiving groove 113 is formed on the lower side along the edge region corresponding to the second receiving groove 112. [ The first receiving groove 111 and the second receiving groove 112 are formed so as to be stepped and the second receiving groove 112 is formed so as to occupy a deeper and wider space than the first receiving groove 111 . A packing groove 114 is formed in the upper surface of the main body 100 along the circumferential direction to insert a packing member for sealing between the main body 100 and the lid 500.

A shaft receiving portion 115 to which the support shaft 470 is fixed is formed at the center of the bottom of the main body 100 and more specifically at the bottom of the second receiving groove 112. On the outer side of the edge of the main body 100, A coupling part 116 for coupling with the coupling part 500 projects in a semicircular shape. A threaded hole is formed in the fastening part 116 to extend vertically so that the body 100 and the lid 500 can be coupled to each other through a fastening bolt 117.

The magnet portion 200 is inserted into the second receiving groove 112 of the main body 100 and a first hollow portion 201 for inserting the body 410 of the impeller 400 is formed at the center of the magnet portion 200. The magnet portion 200 has an outer diameter smaller than the inner diameter of the second receiving groove 112 and is protruded by a predetermined length from the inner circumferential surface of the first hollow portion 201 toward the center of the first hollow portion 201 A plurality of first protrusions 210 contacting the outer circumferential surface of the body 410 of the impeller 400 are formed at predetermined intervals along the circumferential direction. The first engaging protrusion 210 interferes with the second engaging protrusion 420 of the impeller 400 to rotate the impeller 400 together with the magnet unit 200 while reducing the area of contact with the impeller 400 And to prevent breakage and damage due to thermal expansion and deformation of the magnet unit 200 and the impeller 400 due to hot water.

The field magnet 300 is provided to provide a rotational force to rotate the magnet unit 200. The field magnet 300 includes a plurality of winding units 310 in a radial direction and a coil 320 wound around the winding unit 310 Structure. When the alternating current is applied to the field magnet 300, the magnetic field is continuously changed by electromagnetic induction and provides a torque for rotating the magnet portion 200 through the change of the magnetic field. The field magnet 300 typically applies a magnetic field in a rotating electrical machine or the like, and a detailed description thereof will be omitted.

The field magnet 300 is inserted into the third receiving groove 113 from below the main body 100 and isolated from the magnet portion 200 by the main body 100 so as not to touch the water.

The impeller 400 is inserted into the first hollow portion 201 and rotated together with the magnet portion 200 and includes a body 410, an expansion plate 430, and a plurality of vanes 450 .

The body 410 is inserted into the first hollow portion 201 and has a second hollow portion extending vertically so as to allow the support shaft 470 to pass therethrough. The body 410 has a length corresponding to the length of the magnet portion 200 and has an outer diameter smaller than an inner diameter of the first hollow portion 201.

The body 410 has a plurality of protrusions radially protruding from the outer circumferential surface of the body 410 and contacting the inner circumferential surface of the magnet unit 200 in a pattern corresponding to the first protrusions 210 of the magnet unit 200, The second engaging protrusions 420 are formed at predetermined intervals along the circumferential direction of the body 410. The second locking protrusions 420 interfere with the first locking protrusions 210 to transmit the rotational force of the magnet unit 200 to the body 410. The second locking protrusions 420 contact the inner circumferential surface of the second hollow portion of the magnet unit 200 .

A fitting protrusion 421 extending downward is formed at the lower end of the second locking protrusion 420 to couple a support plate 460, which will be described later, to the impeller 400.

The second locking protrusion 420 protrudes in a length corresponding to the length of the first locking protrusion 210. A first locking protrusion 210 and a second locking protrusion 210 are formed between the body 410 and the magnet unit 200, 2 spacing space 250 is formed by the latching protrusion 420.

The extension plate 430 is formed on the upper portion of the body 410 and extends radially to have a diameter larger than the diameter of the body 410 and has a diameter that corresponds to the diameter of the support shaft 470 Holes are formed.

The wings 450 are for moving the water flowing into the rotating space formed between the main body 100 and the lid 500 to the discharge port 520 of the lid 500. The wings 450 are provided on the upper surface of the extension plate 430, 430, and each end portion is bent in a direction opposite to the rotation direction.

The support shaft 470 rotatably supports the impeller 400 in the second receiving groove 112 and is fixed to a bearing receiving portion 115 provided in the second receiving groove 112.

The support plate 460 is coupled to the lower end of the impeller 400 below the magnet unit 200 to support the magnet unit 200 with respect to the impeller 400, A fitting hole 461 having an area corresponding to the bottom surface area of the magnet portion 200 and capable of inserting the fitting protrusion 421 provided under the second locking protrusion 420 is formed .

The lid 500 is coupled to the upper portion of the main body 100 and is connected to the lower surface of the main body 100 through a rotary space 500 in which the wings 450 of the impeller 400 can be rotated together with the first receiving recess 111, And an inlet port 510 for introducing water into the rotary space is formed at an upper portion of the first inlet groove, and the water introduced into the rotary space is connected to the impeller 400, A discharge port 520 is formed to extend outwardly so as to be discharged to the outside of the rotating space.

In the center of the lid 500, an engaging portion having an engaging groove that is pulled upward from the bottom surface to rotatably engage the upper end of the supporting shaft 470 is formed, and an edge portion of the lid 500 A fastening hole is formed through the fastening bolt 117 so that the main body 100 and the lid 500 can be coupled to each other.

The coupling portion is centrally supported and disposed by a plurality of support ribs extending from the inner circumferential surface of the inlet 510 to the center of the inlet 510.

The pump assembly for a hot water mat according to the first embodiment of the present invention having the above-described structure is configured such that the impeller 400 is rotated by the first stopper protrusion 210 of the magnet unit 200, It is possible to prevent breakage or damage due to thermal deformation of the impeller 400 due to the temperature of circulating water due to a small contact area between the magnet unit 200 and the impeller 400. As a result, This has the advantage.

The pump assembly for a hot water mat according to the present invention is interposed between the upper end of the support shaft 470 and the fitting groove 531 of the engaging portion 530 formed on the lid 500 so that the support shaft 470 is bent And a cushion cap 550 for preventing the cushion. The cushioning cap 550 is formed of a rubber material having elasticity. When the support shaft 470 deforms due to thermal deformation, for example, the cushioning cap 550 absorbs additional stress due to the deformation as described above, . The cushioning cap 550 absorbs stress applied to the supporting shaft when the main body 100 and the lid 500 are assembled to prevent the supporting shaft 470 as well as the ceramic bushing 480 described later from being damaged .

The pump assembly for a hot water mat according to the present invention further includes a ceramic bushing 480 interposed between the support shaft 470 and the body 410 so as to occupy the second hollow portion. The ceramic bushing 480 is formed in a cylindrical shape occupying the second hollow portion to prevent air from remaining inside the body, and is formed to have a volume corresponding to the volume of the second hollow portion .

The pump assembly for a hot water mat according to the present invention is formed at the center of the bottom of the second receiving groove 112 of the main body 100 and includes an upper surface of the bearing water portion 115 for fixing the supporting shaft 470, And a poly-washer 490 which is respectively seated on the upper surface of the support shaft 470 to maintain the rotation center of the support shaft 470 so as to enable stable rotation of the support shaft 470 when the support shaft 470 rotates . The poly washers 490 are formed in the shape of a disk having a hole at the center so that the support shaft 470 can pass through, and at least two or more of the poly washers 490 are stacked vertically.

3 shows a second embodiment of a pump assembly for a hot water mat according to the present invention. The pump assembly for a hot water mat according to the second embodiment of the present invention includes a main body 100 having a receiving groove; A magnet unit 200 inserted into the main body 100; A field magnet (300) for rotating the magnet portion (200); An impeller 400 rotated together with the magnet unit 200; A support shaft 470 rotatably supporting the impeller 400; A support plate 460 for supporting the magnet unit 200 to the impeller 400; And a lid 500 coupled to the main body 100.

The other components except for the magnet part 200 are the same as those of the pump assembly for a hot water mat according to the first embodiment of the present invention described with reference to FIG. 1, and redundant description will be omitted.

3, when the water flows into the rotating space, the magnet unit 200 is vertically and horizontally moved so that the air remaining in the second receiving groove 112 of the main body 100 can pass through the upper portion. And a plurality of first air vent holes 205 are formed so as to be spaced from each other along the circumferential direction. The first air vent holes 205 may be formed at arbitrary positions as shown in FIG.

FIG. 4 shows a third embodiment of a pump assembly for a hot water mat according to the present invention. The pump assembly for a hot water mat according to the third embodiment of the present invention includes the impeller 400 of the pump assembly for a hot water mat according to the first and second embodiments of the present invention, An air passage hole 431 is further formed.

Referring to FIG. 4, when water flows into the rotary space of the impeller 400, the air remaining in the second hollow portion of the impeller 400 is discharged to the upper portion of the expansion plate 430 And a plurality of second air holes 431 are formed in the upper and lower portions so as to allow the air to pass therethrough.

The second air passage hole 431 is formed in a predetermined area of the expansion plate 430 by the first locking protrusion 210 of the magnet unit 200 and the second locking protrusion 420 of the body 410, The remaining air in the spacing space 250 can be moved upward through the expansion plate 430 by being formed in a region corresponding to the spacing space 250 formed between the inner circumferential surface of the unit 200 and the outer circumferential surface of the body 410 have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. An embodiment will be possible. Therefore, the scope of the true technical protection of the present invention should be determined by the technical idea of the appended claims.

100: main body 111: first receiving groove
112: second receiving groove 113: third receiving groove
200: magnet part 201: first hollow part
210: first stopping protrusion 250: spacing space
300: Fielder 310: Winder
320: Coil 400: Impeller
410: body 430: extension plate
450: wing 460: support plate
470: Support shaft 480: Ceramic bushing
490: poly washer 500: cover
510: inlet 520: outlet
550: buffer cap

Claims (7)

A second receiving groove formed downward is formed at the bottom center of the first receiving groove, and a second receiving groove formed downward along the edge region corresponding to the second receiving groove, A third receiving groove formed in the main body;
A magnet portion inserted into a second receiving groove of the main body and having a first hollow portion at a center thereof;
A magnet inserted into the third receiving groove to rotate the magnet unit;
An impeller inserted into the first hollow portion and rotated together with the magnet portion;
A support shaft installed in the second receiving groove for rotatably supporting the impeller;
A support plate coupled to a lower end of the impeller at a lower portion of the magnet portion to support the magnet portion with respect to the impeller;
A first inlet groove is formed in the bottom of the main body so as to be upwardly inserted into the first receiving groove to provide a rotational space in which the impeller blades can be rotated together with the first receiving groove, And an outlet formed at one side for discharging the water introduced into the rotary space to the outside of the rotary space by rotation of the impeller. A pump assembly for a hot water mat. The method according to claim 1,
A plurality of first protrusions protruding from the inner circumferential surface of the first hollow portion toward the center of the first hollow portion and contacting the outer circumferential surface of the impeller are formed in the magnet portion at predetermined intervals along the circumferential direction,
The impeller includes a body having a first hollow portion inserted into the first hollow portion and a second hollow portion extending vertically to allow the support shaft to pass therethrough, and a second hollow portion extending radially from the upper portion of the body to a diameter larger than the diameter of the body And a plurality of blades radially disposed on an upper surface of the expansion plate, wherein the blade has a through hole having a diameter corresponding to the diameter of the support shaft,
A plurality of second locking protrusions protruding radially from the outer circumferential surface of the body in a pattern corresponding to the first locking protrusion and contacting the inner circumferential surface of the magnet portion are spaced apart from each other along the circumferential direction of the body, A pump assembly for a hot water mat. 3. The method of claim 2,
The magnet unit includes a plurality of first air cylinders that pass through the upper and lower portions and are spaced apart from each other in the circumferential direction so as to allow air remaining in the second receiving groove of the body to pass upward when water flows into the rotary space, Wherein the holes are formed in the body of the heat pump. 3. The method of claim 2,
Wherein the expanding plate is provided with a plurality of vertically arranged through holes arranged vertically so as to allow the air remaining in the second hollow portion of the impeller to pass to the upper portion of the expansion plate when water flows into the rotary space, Wherein the first air passage holes are formed in the second air passage holes. 3. The method of claim 2,
A coupling portion having a fitting groove that is pulled upward from a bottom surface so as to allow the upper end of the support shaft to be rotatably engaged is formed at the center of the cover,
Wherein a buffer cap is provided between an upper end of the support shaft and the fitting groove to prevent the support shaft from bending. 3. The method of claim 2,
And a ceramic bushing interposed between the support shaft and the body to occupy the second hollow portion. The method according to claim 6,
A support shaft formed at a center of the bottom of the second receiving groove of the main body so as to be seated on an upper surface of the shaft receiving part for fixing the supporting shaft and an upper surface of the extending plate, And a poly-washer for maintaining the center of rotation of the support shaft.
KR20140082699A 2014-07-02 2014-07-02 Hot water mat pump assembly KR101488508B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102048068B1 (en) 2018-07-04 2019-11-22 나경인터내셔날 주식회사 hot water supply pump of hot water mat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200413909Y1 (en) 2006-01-12 2006-04-12 주식회사 에스엠 a hot water cycle pump
KR20080105199A (en) * 2007-05-30 2008-12-04 주식회사 에스엠 Method of making hot water heating device
KR101204344B1 (en) 2010-11-26 2012-11-27 (주) 아이에스-텍 Hot water circulating pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200413909Y1 (en) 2006-01-12 2006-04-12 주식회사 에스엠 a hot water cycle pump
KR20080105199A (en) * 2007-05-30 2008-12-04 주식회사 에스엠 Method of making hot water heating device
KR101204344B1 (en) 2010-11-26 2012-11-27 (주) 아이에스-텍 Hot water circulating pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102048068B1 (en) 2018-07-04 2019-11-22 나경인터내셔날 주식회사 hot water supply pump of hot water mat

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