KR102048068B1 - hot water supply pump of hot water mat - Google Patents

Abstract

The present invention relates to a hot water supply pump of a hot water mat, which can minimize noise and negative pressure of a rotor when heated hot water is supplied to a hot water mat or a hot water panel, and can maintain protection and radiation of a circuit substrate and a stable fastening force between pump components. The hot water supply pump of a hot water mat comprises an upper cap, an impeller, a rotor, a rotor support body, a rotor housing, a field, a circuit substrate, a housing, and a rotary shaft. The upper cap has a concave-shaped hot water discharge passage, and the rotor has a bubble discharge passage. The circuit substrate is protected by a circuit substrate protection member.

Description

Hot water supply pump of hot water mat}

The present invention relates to a hot water supply pump of a hot water mat for minimizing noise and negative pressure of a rotor when supplying heated hot water to a hot water mat or a hot water panel, and maintaining circuit board protection, heat dissipation, and a firm fastening force between pump components. will be.

In general, a hot water circulation pump used for a hot water mat or the like is disclosed in Korean Patent No. 10-1204344, which is a prior art. In this patent, a reservoir is formed by rotating an impeller in which a rotor is installed by electromagnetic induction of a stator and a rotor. After the fluid (water) flows into the inlet side of the pump, it is discharged through the passage between the wing piece of the impeller body and the impeller upper cover by the pumping action, and the fluid introduced along the discharge line via the outlet port is applied to the heating action of the heating means. Therefore, the technology is proposed to transfer the heating mat to the place of use through the connection line.

In particular, the prior art is formed by forming a plurality of discharge holes penetrating up and down in the impeller communicated with the flow path so that the fluid in the flow path formed between the outer surface of the impeller body and the impeller receiving space of the inner housing is discharged upwards have

The prior art as described above does not cause a big problem because smooth discharge of hot water is made in the flow path when the impeller operates in a normal state. However, the hot water circulation pump according to the prior art is mainly used for a hot water mat. Normally, it is used at bedtime, so that hot water is not always circulated to maintain the temperature value set by the user. If hot water is circulated at a temperature higher than the set value, a predetermined time is maintained to maintain the temperature setting value. Circulation must stop

When the hot water circulation pump is stopped for a predetermined time for the control of the hot water circulation, air may be introduced into the flow path again, and in the transition state in which the hot water circulation pump is operated again due to such air, When the water is discharged, an unpleasant noise, similar to the sound generated when water is drained into the sewer, is hindering the user to provide a comfortable bed for the hot mat user.

Therefore, in recent years has been provided a "pump assembly for hot water mat" of Patent No. 10-1488508 as shown in Figure 1 invented to solve the above problems and look at the configuration as follows.

-Below-

 The first receiving groove which is drawn downward in the upper side is formed, the second receiving groove 112 which is drawn downward in the bottom center of the first receiving groove 111 is formed, the lower side corresponds to the second receiving groove. A main body 100 having a third accommodation groove 113 drawn upward along an edge region thereof;

A magnet part 200 inserted into the second receiving groove of the main body and having a first hollow part 201 formed at the center thereof;

A field (300) inserted into the third accommodating groove to rotate the magnet part;

An impeller 400 inserted into the first hollow part and rotating together with the magnet part;

A support shaft 470 installed in the second accommodation groove to rotatably support the impeller;

A support plate 460 coupled to a lower end of the impeller below the magnet part to support the magnet part with respect to the impeller;

It is coupled to the upper portion of the main body, the lower surface is drawn upwards and the first inlet groove is formed to provide a rotating space in which the wings of the impeller can be rotated together with the first accommodation groove, the upper portion is extended upward An inlet for introducing water into the rotating space is formed, the cover 500 is formed with a discharge port formed to discharge the water introduced into the rotating space to the outside of the rotating space by the rotation of the impeller.

In the conventional pump having the configuration as described above, the noise generated by the friction sound generated when the hot water discharged from the impeller 400 collides with the inner circumferential surface of the cover 500 also generates a second noise when the magnet part 200 rotates. Since the hot water accommodated in the receiving groove 112 is not easily injured and is present in the lower portion of the second receiving groove 112, negative pressure is generated accordingly, causing noise and pump trouble, and the circuit board is moist. For example, a problem of shortening the service life occurred due to a failure of the pump.

Korean Patent No. 10-1488508 "Pump Assembly for Hot Water Mat" Korean Patent No. 10-1812033 "Hot water circulation pump"

The present invention has been invented to solve the above problems, the object is,

First, to minimize the noise of the pump operated when supplying hot water heated from the hot water heater to the hot water mat or hot water panel,

Second, to minimize the negative pressure of the pump rotor.

Third, the protection and heat dissipation of the pump circuit board is effective,

Fourth, to provide a hot water supply pump of the hot water mat to maintain the firm and secure coupling force between the pump components to reduce the occurrence of the failure of the pump and to extend the service life.

In order to achieve the above object of the present invention, the configuration of the problem solving means, the upper inlet 110 is formed in the upper center and the discharge cap 120 is formed on one side of the side, and is located below the upper cap The impeller wing 230 is formed at a predetermined interval on the lower plate 220 formed on the upper part of the impeller support shaft 210, and the upper part of the impeller wing is coupled to the cover 240, and the impeller is supported. The rotor 300 is made of a magnet formed by forming a through-hole 310 in the center so that the center portion is fitted to the shaft, and through holes 320 through which air passes through the four sides of the fastening portion, and the rotor. Rotor support 400 that supports the lower surface of the impeller support shaft and is coupled to the lower portion of the impeller, the rotor is located in the lower portion of the impeller and the rotor seat 510 is formed in the center and the upper peripheral portion of the rotor seat 520 In the lower part of the field A haptic part 530 is formed, and the rotor housing 500 formed by the housing coupling part 540 is formed at the outer edge of the field coupling part, and the rotor seat is accommodated and fitted into the field coupling part to be coupled to the rotor. Rotor field 600 and the circuit board 700 is coupled to the lower portion of the field, the housing 800 is coupled to the housing coupled to the upper portion in the state accommodating the circuit board and the field, and the In the hot water supply pump of the hot water mat consisting of a rotating shaft 900 which is installed penetrating the center of the impeller and the rotor, the upper end is coupled to the upper cap and the lower end is coupled to the center portion of the rotor seat,

On the outer side of the upper cap formed with the discharge port is formed a side wall 130 for receiving the impeller, and the inner circumferential surface of the side wall minimizes the friction sound of the hot water discharged from the impeller and at the same time to facilitate the discharge of hot water ( 140 is formed in the yaw shape and connected to the outlet, and the inner circumferential surface of the rotor seat has an upper end at the bottom of the rotor seat to facilitate the discharge of hot water and bubbles generated from the rotor seat. The bubble discharge path 550 of the yaw shape to form a plurality of places in the direction corresponding to the rotation direction of the rotor,

A hole 810 and a power supply connector installation portion 820 are formed in the bottom surface of the housing 800, but the hole and the power supply connector installation portion are formed with a step D inwardly so that the bottom surface of the housing and the bottom of the field The hot water mat pump, characterized in that the space between the circuit board coupled to the step to secure the space (S) as the step, inserting and curing the circuit board protection member 830 to protect the circuit board in the space. .

The hot water supply pump of the hot water mat of the present invention having the configuration as described above, as described in the above object, the noise of the pump and the negative pressure of the pump rotor which is operated when supplying hot water heated from the hot water heater to the hot water mat or hot water panel, etc. Minimization, and to effectively protect and heat dissipation of the pump circuit board, and to maintain a strong and secure coupling force between the pump components to reduce the failure of the pump and to extend the service life.

1 is an exploded perspective view of a conventional hot water pump for a mat,
2 is an exploded perspective view of the hot water supply pump of the hot water mat according to the present invention;
3 is a cross-sectional view of the hot water supply pump of the hot water mat according to the present invention;
4A and 4B are a bottom perspective view and a cross-sectional view of the upper cap according to the present invention;
5A and 5B are bottom exploded perspective views and coupling cross-sectional views for explaining the coupling relationship between the impeller support shaft and the rotor and the rotor support according to the present invention;
6 is an exploded perspective view for explaining the coupling relationship between the rotor housing and the field in accordance with the present invention;
Figure 7a and 7b is an exploded bottom perspective view and a cross-sectional view for explaining the coupling relationship between the rotor housing and the housing according to the present invention.

The hot water supply pump of the hot water mat according to the present invention is installed in the hot water heater to supply hot water to the hot water heated in the hot water heater, and operates when supplying hot water heated from the hot water heater to the hot water mat or the hot water panel. Minimizes the noise of the pump and negative pressure of the pump rotor, ensures the protection and heat dissipation of the pump circuit board effectively, and maintains the firm and safe coupling force between the pump components to reduce the failure of the pump and extend the service life. The main features of the present invention will be described with reference to the accompanying drawings as follows.

- next -

The upper cap 100 is located at the top of the pump of the present invention, as shown in Figure 2 to 4b is formed with an inlet 110 for introducing hot water into the upper center and the outlet 120 is formed on one side side The outer wall of the upper cap 100 in which the discharge port 120 is formed is formed a side wall 130 for receiving the impeller 200, and the friction sound of hot water discharged from the impeller 200 on the inner circumferential surface of the side wall 130 The hot water discharge path 140 for minimizing and facilitating the discharge of hot water is formed to be connected to the outlet 120 in a yaw shape as shown in FIGS. 4A and 4B.

Inlet 110 in the configuration of the upper cap 100 is where hot water preheated in the hot water heater is introduced, the outlet 120 is the rotation of the impeller 200 and the hot water introduced through the inlet 110 Together with the discharge port 120 is a place to be supplied to the hot water mat (not shown), the side wall 130 is to accommodate the impeller 200 so as not to inhibit the rotation of the impeller 200, which is a conventional technical configuration Invar, a detailed description thereof will be omitted and the following description will be given of the feature configuration, that is, the hot water discharge path 140 for minimizing the noise of the pump, which is an object of the present invention.

The hot water discharge path 140 is formed to be connected to the outlet 120 in the form of a yaw along the inner circumferential surface of the side wall 130 to accommodate the rotation of the impeller 200, so as to The reason why the hot water discharge path 140 is formed in the shape of a yaw along the inner circumferential surface of the side wall 130 is that the hot water discharged from the impeller 200 is the hot water discharge path 140 of the yaw shape. By spraying the hot water sprinkled by the impeller 200 hits the side wall 130 and does not generate a friction noise to absorb and offset the friction sound in the hot water discharge path 140 of the yaw (凹) to minimize the noise of the pump To do so.

However, in the conventional pumps, hot water is sprinkled on the sidewalls through the impeller, thereby generating a frictional noise, and thus, the noise is louder when the user goes to bed at night.

However, as described above, in the present invention, the hot water sprayed from the impeller 200 does not directly generate friction with the side wall 130, but absorbs and offsets the frictional sound from the hot water discharge path 140 having a yaw. There is an advantage that can minimize the noise of the.

In addition, according to the present invention, a plurality of downward fitting protrusions 150 as shown in FIG. 4A are formed on the lower surface of the side wall 130 as an embodiment of the upper cap 100, and the rotor housing 500 A plurality of fitting grooves 560 in which the fitting protrusions 150 are tightly coupled to the upper surface of the peripheral portion are formed as shown in FIG. 2 to form a tight and stable force between the fitting protrusions 150 and the fitting grooves 560. The coupling was made.

Therefore, the coupling between the upper cap 100 and the rotor housing 500 of the present invention is a solid and stable coupling without using a separate fixing member, but if necessary, using the fixing member and the upper cap 100 and The rotor housing 500 may be coupled.

The impeller 200 of the present invention is located in the lower portion of the upper cap 100 as shown in Figure 2 and 5a and 5b at a predetermined interval on the lower plate 220 formed on the upper of the impeller support shaft 210 An arc shaped impeller wing 230 is formed and the upper part of the impeller wing 230 is formed by combining the cover 240.

A plurality of coupling pins 241 are formed on a lower surface of the cover 240, and a coupling pin coupling hole 231 to which the coupling pins 241 are fitted to the impeller blade 230 is formed as shown in FIG. 2. As it is the cover 240 and the impeller wing 230 is made of a firm coupling.

Therefore, the hot water flowing into the inlet 110 is discharged to the outlet 120 along the hot water discharge path 140 of the side wall 130 without being scattered to the top.

In addition, the rotor 300 of the present invention is made of a magnet, and as shown in FIGS. 2, 5A, and 5B so that the center portion is fitted into the impeller support shaft 210, the fastening portion 310 is formed through the center. The through holes 320 are formed in four circumferences of the fastening part 310.

In addition, an outer key groove 250 is formed on four outer circumferential surfaces of the impeller support shaft 210, and four inner circumferential surfaces of the fastening part 310 of the rotor 300 are tightly coupled to the outer key groove 250. The electronic key 330 is formed to protrude so that the rotor key 330 is coupled to the outer key groove 250 forcibly coupled to the rotor 300 so that the rotor 300 is tightly and firmly coupled to the impeller support shaft 210. .

In addition, the lower end of the impeller support shaft 210 of the present invention is provided with a rotor support 400 to prevent the departure of the rotor 300 and to support the lower surface of the rotor 300, the rotor support 400 As shown in FIGS. 2 and 5A and 5B, the hollow structure 260 is formed on the lower inner side of the impeller support shaft 210, and the inner key groove 261 is formed on four inner circumferential surfaces of the hollow portion 260. Is formed, and a coupling hole 410 closely coupled to the hollow part 260 is formed at the center of the rotor support 400, and the inner key groove 261 is formed at four sides of the coupling hole 410. The rotor support 400 is the rotor 300 because a coupler key 411 is formed to be tightly coupled with the rotor and the coupler key 411 is fixed to the inner key groove 261. It is to firmly support and fix the lower surface of.

Therefore, to firmly and stably fix the rotor 300 to the impeller support shaft 210 is achieved without using a separate fixing member, the rotor support 400 in the through hole of the rotor 300 A hole 420 is formed at a location that matches 320.

Rotor housing 500 of the present invention is located in the lower portion of the impeller 200, as shown in Figures 2 and 7a and the rotor seat 510 is formed in the center portion of the rotor seat 510 The lower portion of the upper peripheral portion 520 is formed with a field coupling portion 530, the outer edge of the field coupling portion 530 is formed by forming a housing coupling portion 540.

In addition, the inner circumferential surface of the rotor seat 510 extends from the lower end to the upper end of the rotor seat 510 to facilitate the discharge of hot water and bubbles generated from the rotor seat 510. The bubble discharge passage 550 in the form of) is formed in a plurality of places in a direction corresponding to the rotation direction of the rotor 300.

Most of the hot water introduced into the inlet 110 of the upper cap 100 is discharged to the outlet 120, but only a portion of the hot water is discharged to the outlet 120. ) And the rotor mounting part 510 through the hole 420 of the rotor support 400 are accumulated in the lower part of the rotor seating part 510, and the hot water accumulated therein is rotated with the rotation of the rotor 300. Together with the bubble in the rotor seat 510 is to maintain the vacuum state and accordingly the negative pressure is generated in the rotor 300 becomes a rotation inhibiting element of the rotor 300.

Therefore, in the present invention, the inner circumferential surface of the rotor seat 510 to minimize the negative pressure effect on the rotor 300 to facilitate the discharge of hot water and bubbles generated from the rotor seat 510. The bubble discharge path 550 having a yaw shape extending from the lower end to the upper end of the electronic seating part 510 is formed in a plurality of places in a direction corresponding to the rotation direction of the rotor 300.

Rotor seating part by forming a plurality of yaw-shaped bubble discharge path 550 extending from the lower end of the rotor seating portion 510 in the direction corresponding to the rotation direction of the rotor 300 as described above The hot water accumulated in the lower portion of the 510 is quickly and smoothly discharged to the outside of the rotor seat 510. Accordingly, the negative pressure does not occur in the rotor 300, so that the impeller 200 may be smoothly rotated and rotated. Since the noise does not occur due to the negative pressure of the electron 300 and the failure of the pump does not occur, the service life of the pump can be extended.

As shown in FIG. 6, the field 600 of the present invention accommodates an outer circumferential surface of the rotor seat 510 and is fitted into the field coupling part 530 to rotate the rotor 300. Coupling pieces 570 are formed on the outer circumferential surface of the rotor seat 510 at equal intervals, and coupling holes 610 on the inner surface of the field 600 are tightly fitted with the coupling pieces 570. Since the coupling pieces 570 are tightly fitted into the coupling holes 610, the coupling pieces 570 are tightly and securely coupled between the field 600 and the rotor housing 500.

7A and 7B, a circuit board 700 is located below the field 600 of the present invention, and the circuit board 700 is provided with a power supply connector formed at a lower portion of the housing 800 described below. It is positioned to be mounted on the portion 820.

As described above, a space equal to the step D of the power supply connector installation unit 820 is disposed between the bottom surface of the circuit board 700 and the inner bottom surface of the housing 800 mounted on the power supply connector installation unit 820. S) is secured and an epoxy resin, which is a circuit board protection member 830, which protects the circuit board 700 from hot water (water) is filled and cured in the space.

The epoxy resin which is the circuit board protection member 830 filled in the space S takes the form of insert molding surrounding the components of the circuit board 700, and such epoxy resin is bisphenol A, a diluent and a curing agent or a main material. It is preferable to use a mixture of a curing agent in a polymer obtained by polymerizing phosphorus bisphenol A and epichlorohydrin. In addition, an epoxy resin layer of a material which protects the circuit board 700 from hot water (moisture) may be used. Filling the epoxy resin into the) is through the hole 810.

Meanwhile, the rotor housing 500 and the housing 800 are coupled to each other with the field 600 and the circuit board 700 interposed therebetween, and the structure of the rotor housing 500 and the housing 800 is coupled to the field coupling part 530 and the housing. Separation walls 580 are formed between the portions 540, and fixing grooves 581 are formed at a plurality of lower portions of the separation walls 580, and the fixing grooves 581 are formed on the inner circumferential surface of the housing 800. The rotor piece 500 and the housing 800 are firmly and stably fixed because the fixing piece 840 is formed to be tightly fitted and the fixing piece 840 is tightly fitted to the fixing groove 581. .

In addition, the center of the upper cap 100, the center of the impeller 200 and the center of the impeller support shaft 210 and the rotor housing 500 of the present invention is installed through the rotating shaft 900 and the upper end of the rotating shaft 900 Is coupled to the shaft coupling portion 160 formed in the central portion of the upper cap 100 and the lower end of the rotating shaft 900 is coupled to the shaft coupling portion 590 formed in the lower center of the bottom surface of the rotor housing 500. .

The hot water supply pump of the hot water mat according to the present invention configured as described above is supplied with electricity through a power supply connector installed in the power supply connector installation unit 820 and the supplied electricity is field 600 through the circuit board 700. When the rotor 300 of the magnet is rotated while the rotary shaft 900 is interlocked while rotating the impeller 200 and accordingly the hot water supplied to the inlet 110 is discharged to the outlet 120 to the hot water mat or It will be supplied to the hot water panel.

The principle of the pump operation is a known technique, and a detailed description thereof has been omitted.

As described above, the hot water supply pump of the hot water mat according to the present invention minimizes the noise of the pump and the negative pressure of the pump rotor which are operated when the hot water heated from the hot water heater is supplied to the hot water mat or the hot water panel as described in the above effect. In addition, the protection and heat dissipation of the pump circuit board is effectively performed, and it has the advantage of reducing the occurrence of failure of the pump and extending the service life by maintaining a firm and safe coupling force between the pump components.

100: upper cap 110: inlet
120 outlet 130 side wall
140: hot water discharge 150: fitting projection
200 impeller 210 impeller support shaft
220: lower plate 230: impeller wing
240: cover 250: external keyway
260: hollow portion 261: internal key groove
300: rotor 310: fastening portion
320: through hole 330: rotor key
400: rotor support 410: coupler
411: coupler key 500: rotor housing
510: rotor seat 520: peripheral part
530: field coupling portion 540: housing coupling portion
550: bubble discharge path 560: fitting groove
570: coupling part 580: separation wall
581: fixed groove 600: field
610: coupling hole 700: circuit board
800 housing 810 holes
820: power supply connector installation portion 830: circuit board protection member
840: fixed piece 900: axis of rotation
D: step S: space

Claims (6)

An upper cap 100 having an inlet 110 formed at an upper center and an outlet 120 formed at one side thereof, and a lower plate 220 positioned at a lower portion of the upper cap and formed at an upper portion of the impeller support shaft 210. The impeller wing 230 is formed at a predetermined interval in the upper part of the impeller wing is coupled to the impeller 200, the cover 240, and the fastening portion 310 in the center so that the center portion is fitted to the impeller support shaft Rotor 300 formed of a magnet formed by forming a through-hole 320 through which air is formed, and through four circumferences of the fastening part, and a circuit that supports the lower surface of the rotor and is fitted into the lower part of the impeller support shaft. The electronic support 400 and the lower portion of the impeller, the rotor seating portion 510 is formed in the center, and the field coupling portion 530 is formed below the upper peripheral portion 520 of the rotor seating portion. Housing edges on the outer edge of the coupling part The rotor housing 500 is formed by forming a portion 540, and the rotor 600 receives the rotor seating portion and is coupled to the field coupling portion coupled to the field 600 to rotate the rotor, and is coupled to the lower portion of the field A circuit board 700, a housing 800 having an upper portion fitted to the housing coupling portion in a state of accommodating the circuit board and the field; and an upper cap installed through the center of the impeller and the rotor; In the combined installation and the lower end of the hot water supply pump of the hot water mat consisting of a rotating shaft 900 is coupled to the center portion of the rotor seat,
On the outer side of the upper cap formed with the discharge port is formed a side wall 130 for receiving the impeller, and the inner circumferential surface of the side wall minimizes the friction sound of the hot water discharged from the impeller and at the same time to facilitate the discharge of hot water ( 140 is formed in the yaw shape and connected to the outlet, and the inner circumferential surface of the rotor seat has an upper end at the bottom of the rotor seat to facilitate the discharge of hot water and bubbles generated from the rotor seat. Form a plurality of bubble discharge path 550 of the concave shape to reach the rotation direction of the rotor in a plurality of places,
A hole 810 and a power supply connector installation portion 820 are formed in the bottom surface of the housing 800, but the hole and the power supply connector installation portion are formed with a step D inwardly so that the bottom surface of the housing and the bottom of the field The hot water of the hot water mat, characterized by securing the space (S) as much as the step between the circuit boards coupled to the insert and hardening the circuit board protection member 830 for inserting the circuit board and protecting the circuit board. Feed pump. The method of claim 1,
A plurality of fitting protrusions 150 are formed on the bottom surface of the side wall of the upper cap, and a plurality of fitting grooves 560 in which the fitting protrusions are tightly coupled are formed on the upper surface of the rotor housing. Hot water supply pump. The method of claim 1,
Coupling pieces 570 are formed at equal intervals on the outer circumferential surface of the rotor seat, and hot water of the hot water mat, characterized in that coupling holes 610 are formed at equal intervals on the inner surface of the field. Feed pump. The method of claim 1,
A separation wall 580 is formed between the field coupling part and the housing coupling part, and a fixing groove 581 is formed in a plurality of lower portions of the separation wall, and a fixing piece that is tightly fitted into the fixing groove on the inner circumferential surface of the housing. Hot water supply pump of the hot water mat, characterized in that 840 is formed. The method of claim 1,
Hot water mat, characterized in that the outer key groove 250 is formed on the four outer peripheral surfaces of the impeller support shaft, the rotor key 330 is tightly coupled to the outer key groove on the inner peripheral surface of the fastening portion of the rotor. Hot water supply pump. The method of claim 1,
A hollow portion 260 is formed at the lower inner side of the impeller support shaft, and inner key grooves 261 are formed at four inner circumferential surfaces of the hollow portion, and a coupling hole 410 is closely coupled to the hollow portion at the central portion of the rotor support. Is formed to protrude and the four sides of the coupling sphere hot water supply pump of the hot water mat, characterized in that to form a coupling key 411 that is tightly coupled to the inner key groove.

Images