KR20200032968A - Water heating module including independence controller - Google Patents

Abstract

The present invention relates to a hot water heating module having an independent control unit, including: a thin case which is detachably inserted into a housing-shaped outer casing in a cartridge manner; a planar heater which is provided on at least one side of the thin case and heats water flowing in the inner flow space of the thin case; and a control unit which is disposed on a printed circuit board coupled to one side of the thin case and controls the operation of a hot water outlet mode separately from a main control unit of a refrigerator, a water purifier, or a water heater. Therefore, the module can be easily installed on each product, such as the refrigerator, the water purifier, or the water heater if necessary, and replacement and repair thereof are facilitated.

Description

WATER HEATING MODULE INCLUDING INDEPENDENCE CONTROLLER}

The present invention relates to a hot water heating module having an independent control unit, which is easily provided for replacement and detachment in a predetermined part of a water purifier, a water heater, and a refrigerator, but is provided with an independent control unit capable of independently performing hot water related function control. It's about modules.

In general, the hot water heating module refers to a device provided to heat the supplied water to discharge hot water in accordance with the hot water discharge mode of the consumer.

Such a hot water heating module is provided to be discharged in conjunction with a dispenser of a refrigerator in recent years, and is applicable to various products to enable hot water discharge from a water purifier and hot water discharge from a water heater.

For example, in the case of an FDR refrigerator, a storage compartment is partitioned up and down, a storage compartment partitioned at the top is used as a refrigerating compartment, and a storage compartment partitioned at the bottom is used as a freezer compartment, and a door is located on the front of any one of the rotary opening and closing doors that open and close the refrigerator compartment. Dispenser is provided to take out water (cold water or hot water) or ice from outside the main body without opening the water, and the hot water heating module may be provided to discharge hot water through the dispenser in response to a hot water discharge mode.

By the way, when such a conventional hot water heating module is provided in the refrigerator, a separate control unit is not provided and operates under the control of the refrigerator control unit. Meanwhile, even when provided in a water purifier and a water heater, the water purifier and the water heater are not equipped with separate control functions. It is implemented to respond to the integrated control.

This is because the self-control of the hot water heating module provided in each product is impossible, and since the generalization of all products is extremely difficult, when the replacement and repair of the hot water heating module is required, the integrated control process for each product is essential. A / S is very unfavorable.

The present invention has been devised to solve the above technical problem, and an object thereof is to provide a hot water heating module having an independent control unit that can be universally replaced and repaired regardless of the type of product installed.

In addition, another object of the present invention is to provide a hot water heating module having an independent control unit, which is not dependent on the control unit of the product to be installed, and is capable of self-control when the hot water outlet mode is operated.

An embodiment of a hot water heating module having an independent control unit according to the present invention, a thin case detachably provided by a cartridge insertion method in an outer casing in a housing form, is provided on at least one side of the thin case, and the thin case It is arranged on a printed circuit board coupled to one side of the planar heater and the thin case provided to heat the water flowing through the inner flow space of the refrigerator, water purifier or water heater to control the operation of the hot water outlet mode separately from the main control unit It includes a control unit.

Here, the independent control unit is connected to the printed circuit board, mounted on the control panel unit and the printed circuit board to apply the hot water outlet mode operation signal, and based on the signal by the operation of the control panel unit, the hot water outlet mode It may include a microcomputer to control the operation.

In addition, the independent control unit is provided separately from the main power supply unit of a refrigerator, a water purifier or a water heater, and an independent power supply unit configured to apply independent power to the control unit and the planar heater, to flow the internal flow space by the planar heater. The temperature sensor for sensing the temperature of the water rise, the control panel unit is provided with a selection button unit for selecting the hot water outlet mode, the flow sensor for sensing the flow rate of water flowing through the internal flow space and the surface heater It may include a bimetal to prevent overheating of the water.

In addition, on one side of the thin case, an inlet provided for water to flow into the inner flow space and an outlet for water to be discharged from the inner flow space are formed, and when the thin case is inserted into the outer casing , The inlet and the outlet may be provided to be coupled to a water supply pipe connected to an external water supply source.

In addition, the control unit further includes a wire harness for power supply or communication connection, and when the thin case is inserted into the outer casing, the wire harness may be electrically connectable to a connecting portion provided inside the outer casing. have.

In addition, the planar heater may include a planar heater provided on one side of the thin case and a planar heater provided on the other side of the thin case.

In addition, the thin case may be provided with a stainless steel material.

Further, the planar heater may be PID (Proportional Integral Derivative) control by the control unit.

In addition, the planar heater, PTC (Positive Temperature Coefficient) characteristics may be provided.

In addition, a plurality of heat transfer fins formed integrally with the thin case and protruding toward the inner flow space may be formed on the inner surface of the thin case.

According to an embodiment of the hot water heating module having an independent control unit according to the present invention can achieve various effects as follows.

First, by providing embodiments of the present invention as a modular product, it has an effect of increasing user selectivity for independent products such as a refrigerator, a water purifier, or a water heater.

Second, by being detachably coupled to a predetermined portion of the refrigerator, water purifier or water heater, it has an effect of easy installation and replacement.

1 is a perspective view showing a refrigerator to which an embodiment of a hot water heating module having an independent control unit according to the present invention is applied,
2 is a front view showing a state in which the refrigerator door of FIG. 2 is opened;
3 is a view showing an installation example of a hot water heating module having an independent control unit according to the present invention,
4 is a perspective view showing an embodiment of a hot water heating module having an independent control unit according to the present invention,
5A to 5C are cross-sectional configuration views, front views, and rear views of FIG. 4, showing hot water heating modules in various embodiments,
6 is a configuration diagram of an independent control unit according to the present invention,
7 is a control flowchart according to a first embodiment of a method for supplying hot water using a hot water heating module having an independent control unit according to the present invention,
8 is a control flowchart according to a second embodiment of a method for supplying hot water using a hot water heating module having an independent control unit according to the present invention.

Hereinafter, an embodiment of a hot water heating module having an independent control unit according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with the understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

1 is a perspective view showing a refrigerator to which an embodiment of a hot water heating module having an independent control unit according to the present invention is applied, FIG. 2 is a front view showing a state in which the refrigerator door of FIG. 2 is opened, and FIG. 3 is the present invention. It is a diagram showing an installation example of a hot water heating module having an independent control unit.

In order to more effectively describe the hot water heating module having an independent control unit according to the present invention, embodiments of the present invention will be described as being limited to being installed and applied to a refrigerator. However, it will be understood that the true scope of the present invention does not exclude installation and application of water purifiers or water heaters.

1 to 3, a refrigerator in which a hot water heating module having an independent control unit according to an embodiment of the present invention is installed is an FDR refrigerator, and the refrigerator body 6 has a top plate 1 and a bottom plate 2 , The storage chamber (31,32) is formed including the side plates (3,4) and the rear plate (5), formed inside the main body (6), the refrigerating chamber (31) provided at the top by the horizontal partition wall (7) It is divided into a freezer compartment 32 provided at the lower portion.

The refrigerating chamber 31 has a front opening, and is hinged on both sides of the main body 6 by a hinge member 33, and is opened and closed by left and right rotating retractable doors 10 and 11 that rotate forward.

The vegetable chamber 61 and 71 is formed between the pair of protrusions 53 protruding from the rear surface of the door 52 on the right rotating retractable door 11. The vegetable compartments 61 and 71 are relatively small in volume, such as vegetables and fruits, and are spaces for storing foods to be stored by separating and blocking them from other foods to preserve taste and aroma so that various vegetables can be sorted and stored by type. It is composed of a first vegetable compartment 61 and a second vegetable compartment 71.

A dispenser 16 is provided on the left rotating retractable door 10 so that a user can take out drinks or ice without opening the doors 10 and 11. The dispenser 16 is provided with an ice extraction space 26 so as to withdraw ice from the outside and a water intake port 25 for taking out water, and is protruded from the rear surface 51 of the door 10 into a predetermined interval. .

Of course, the dispenser 16 and the water tank 18 and the filter 19 and the valve 20 to be described below may be provided on the right door 11. In addition, although the present embodiment is a refrigerator in which two rotary opening and closing doors 10 and 11 are provided, it is natural that the idea of the present invention can be applied to a refrigerator in which only one rotary opening and closing door is provided.

On the back surfaces 51 and 52 of the doors 10 and 11, door guards 22 for storing foods having a small size are provided.

In the freezer compartment 32, a sliding door 12 provided in a drawer shape is provided to be drawn in and out.

On the upper side of the refrigerating chamber 31, an ice-making apparatus 15 capable of producing ice is installed, and a pan tree 17 having a width corresponding to the refrigerating chamber is provided at the lower portion to store storage having a large area. The refrigerator compartment 31 is provided with a shelf 40 on which food can be placed.

On the other hand, a module installation unit (not shown in the drawing, a reference numeral of FIG. 2) in which a hot water heating module having an independent control unit according to an embodiment of the present invention is installed on the rear surface 51 of the door 10 (that is, in the high interior) 210).

The module installation unit may be assembled and installed on the rear surface of the door 10 adjacent to the dispenser 16 provided to be exposed to the front surface of the door 10.

Here, the module installation unit, the outer casing 210 to be described later in the form of a housing provided with a predetermined installation groove to enable one-touch insertion and detachment in a cartridge type manner of a hot water heating module provided with an independent control unit according to an embodiment of the present invention It can be made in the form.

Inside the installation groove portion, the tip of the water supply pipe 54 is installed so as to be supplied from a water source located outside the refrigerator, and the instantaneous water supply pipe is provided with a hot water heating module equipped with an independent control unit according to an embodiment of the present invention. The water to be heated is not leaking, and a structure to be combined in a one-touch manner may be built-in.

4 is a perspective view showing an embodiment of a hot water heating module having an independent control unit according to the present invention, and FIGS. 5A to 5C are cross-sectional configuration views, front views, and rear views of FIG. 4, showing various embodiments of the hot water heating module 6 is a block diagram of an independent control unit according to the present invention.

One embodiment of the hot water heating module having an independent control unit according to the present invention, as shown in Figure 5a, the thin case 220, the thin case 220, the inner flow space (S) is formed therein to allow water to flow It is disposed close to the outer surface of one side of the 220, the planar heater 240 for heating the water flowing into the thin case 220, the thin case 220 is provided in a (refrigerated) warehouse to shield the external configuration inside the above A bimetal 250 disposed on one side of the thin case 220 on the side where the plane heater 240 is disposed may be included to prevent overheating of the water by the outer casing 210 and the plane heater 240.

Here, the first supply pipe among the supply pipes 53 is preferably disposed to receive water directly from a water supply source such as a faucet, and the second supply pipe is not shown in the drawing, so that hot water is taken out through the dispenser 80 It may be provided to be connected to the intake port provided.

On the other hand, on the other side of the thin case 220, it is connected to the first supply pipe of the water supply pipe 54 and is connected to the second supply pipe of the inlet 231 and the water supply pipe 54 provided to receive water to raise the temperature. An outlet 232 provided to discharge the water may be provided.

In addition, a water filter 19 may be further provided on the water supply pipe 54. The water filter 19 is not shown, but is intended to allow purified water to be discharged when the user selects the water discharge mode provided in the selection button unit. Therefore, the water filter 19 is advantageously installed on the first supply pipe among the first supply pipe and the second supply pipe.

In particular, the first supply pipe may be installed in a pipe to be capable of preheating the water supplied from the water supply source by waste heat in the (refrigerated) warehouse (for example, heat wasted from the condenser). Therefore, the energy efficiency can be improved by performing the pre-heating mode before the main heating mode is activated by the planar heater 240.

On the other hand, an embodiment of the hot water heating module having an independent control unit according to the present invention, as shown in Figure 4, is arranged parallel to be spaced a predetermined distance from the outer surface of the thin case 220, the heat insulating member 274 It may further include a printed circuit board 271 installed insulated by.

On the outer surface of the printed circuit board 271, although not shown, an independent control unit 270 that controls the operation of the hot water heating module by a signal transmitted from a temperature sensor, a flow sensor, and the bimetal 250 described above The composing mycom can be mounted.

Mycom is an independent control unit 270 only for the hot water heating module operated separately from the main control unit of the refrigerator, water purifier, or water heater, as shown in FIG. 6, power input / output by a power supply unit (not shown), and hot water discharge mode The operation signal input from the selection button unit provided to select, if necessary, the application signal from the safety switch, whether the container enters the dispenser 16 through the container recognition sensor, the above-described temperature sensor, flow sensor and bimetal The hot water outlet mode may be independently driven based on an application signal through 250.

Meanwhile, an embodiment of a hot water heating module having an independent control unit according to the present invention includes a control panel unit provided to allow a user to select any one of a hot water outlet mode, a cold water outlet mode, a purified water outlet mode, or an ice extraction mode. 273).

The control panel portion 273 is provided to shield the printed circuit board 271, and is thin in the insertion groove portion () provided to be coupled by a cartridge insertion method, such as an external casing 210 provided in a refrigerator, a water purifier or a water heater. When the case 220 is installed, it may be provided to shield or cover the insertion groove from the outside.

As described above, according to an embodiment of the hot water heating module having an independent control unit according to the present invention, the hot water outlet function of each product can be selectively added by being manufactured and supplied modularly to the use of various products including a refrigerator, a water purifier, and a water heater. Of course, the repair and replacement can create a very easy advantage.

On the other hand, the thin case 220 may be provided with a temperature sensor for measuring the temperature of the temperature of the water inside the inner flow space (S). The temperature sensor is applicable not only to the first embodiment but also to the hot water heating module according to the second and third embodiments described below, and in the planar heater 240 or the second and third embodiments described below One side surface heater 241 to be described and the other side surface heater 242 may be integrally provided. However, the installation position of the temperature sensor is not limited to this, and may be installed at any position within a range capable of detecting the temperature of the temperature of the water inside the internal flow space S.

Meanwhile, the bimetal 250 and one bimetal 251 and the other bimetal 251 described in the second and third embodiments described below may be provided in a manual return type. That is, the user may be provided to return manually only when operating a mode other than the hot water outlet mode, such as the cold water outlet mode, through the selection button unit.

The thin case 220 is supplied with sufficient heat from the surface heater 240 attached to the outside to flow water flowing into the inner flow space S, and is preferably adopted as a material that is not corroded by water. In the embodiment of the present invention, the thin case 220 will be described on the assumption that it is provided with a stainless steel material.

On the other hand, the inner flow space (S) of the thin case 220 is set to have a capacity of 50 cc or less, so that the overall appearance can be manufactured in a very slim shape. This, as will be described later, as well as to be detachable by a cartridge insertion method to the outer casing 210, of course, by installing and detaching a plurality of thin cases 220 to one outer casing 210, the refrigerator door This is to ensure diversity of design changes in (10).

Meanwhile, the planar heater 240 may be PID (Proportional Integral Derivative) controlled. PID control is a kind of feedback control that maintains the reference voltage of the system based on the error between the control variable and the reference input, and the bimetal 250 is based on the temperature rising temperature of the water measured by the temperature sensor. Through overheating prevention function and fused control is possible.

The PID control of the planar heater 240 may be applied to the planar heater 241 and the planar heater 242 on the other side of the second and third embodiments described later.

Meanwhile, the planar heater 240 may have PTC characteristics. That is, when the temperature rises, the resistance value increases, and when the temperature is low, the resistance value decreases, so that water may be heated more quickly.

The outer casing 210 is provided so that one side (preferably, the front of the refrigerator door 10) is provided as shown in FIGS. 3 and 5A to 5C, so that the thin case 220 is provided inside. It has a structure that can be installed detachably by a cartridge insertion method.

In FIG. 3, the opening is formed so that the installation groove is formed in one direction inside the door 10. For installation of the thin case 220, the assembler has the outer casing 210 from one side while the refrigerator door 10 is opened. ) Can be installed by inserting the thin case 220 to the side.

An arm fixing end 211 in which the male fixing end 221 provided on the lower and upper sides of the thin case 220 is inserted and seated may be formed inside the outer casing 210.

Meanwhile, as shown in FIG. 3, the hot water heating module may further include an insulating member 260 provided to surround the remaining surface of the thin case 220 on which the surface heater 240 is not installed. .

Insulating member 260, the heat transmitted from the planar heater 240 to prevent the heat of the thin case 220 heated from the planar heater 240 from passing out, the heat transmitted from the planar heater 240 is the inner flow space of the thin case 220 (S ) To focus on heating the flowing water.

On the other hand, the heat insulating member 260 is disposed between the outer casing 210 in addition to collecting the heat described above may serve to block the movement of heat to the outside.

In addition, the inner flow space (S) of the thin case 220, although not shown, may be further provided with a flow path guide to guide the path of the water supplied from the inlet 231 to flow to the outlet 232 increases. .

The flow path guide serves to improve the heat transfer performance of the planar heater 240 applying heat over a limited area by increasing the flow path of water in the inner flow space S of the thin case 220. The flow path guide may be formed such that water flows in a zigzag form in the inner flow space S of the thin case 220.

On the other hand, embodiments of the hot water heating module having an independent control unit according to the present invention, as shown in FIGS. 5A to 5C, is formed integrally with the thin case 220 on the inner surface of the thin case 220 , A plurality of heat transfer fins 222 may be formed to protrude toward the inner flow space (S).

The heat transfer fin 222 is a case in which heat generated from the planar heater 240, one planar heater 241, or the other planar heater 242 is thin to the extent that the flow of water in the internal flow space S is minimized. Heat can be heated to be suitable for the hot water outlet temperature in a shorter time by transferring heat to the flowing water in a state where a sufficient heat transfer area is secured on the inner surface of the 220. Such a plurality of heat transfer fins 222 enable direct supply hot water to be generated so that hot water is generated and discharged in a short time without interrupting the flow of water supplied from the water supply source.

Hereinafter, a second embodiment of the hot water heating module of the present invention will be described. However, since the shape of the thin case 220 and the shape of the outer casing 210 are almost the same, hereinafter, different parts will be mainly described compared to the first embodiment described above.

In the direct supply hot water refrigerator according to the second embodiment, as shown in FIG. 5B, one side surface heater 241 and the other side surface heater 242 are disposed in close contact with each other on the outer surface of one side of the thin case 220, respectively. Can be.

In addition, the direct supply hot water refrigerator according to the second embodiment, one side bimetal 251 and the other bimetal to prevent overheating of each of the planar heaters (i.e., one side heater 241 and the other side heater 242) 252 may be further disposed. The rest of the rest of the configuration will be replaced with a description of the direct-type hot water refrigerator according to the first embodiment.

In the hot water heating module according to the third embodiment, as shown in FIG. 5C, one side surface heater 241 and the other side surface heater 242 may be disposed in close contact with the outer side surface of the thin case 220, respectively. have.

However, compared with the hot water heating module according to the second embodiment, the other surface heater 242 may be disposed to be in close contact with the discharge side (ie, the outlet 232 side) through which water is discharged.

Further, in the second and third embodiments, the other surface heater 242 is covered by the inlet 231 and the outlet 232 provided on the other outer surface of the thin case 220 so as to cover the remaining area that the other surface heater 242 cannot cover. Sub heaters 242a and 242b may be provided.

5, the sub heaters 242a and 242b, the inlet side sub heater 242a covering the remaining area on the inlet 231 side, and the outlet side covering the remaining area on the outlet 232 side, as shown in FIG. Sub heater 242b may be included. Energy efficiency may be improved by the above-described inlet-side sub-heater 242a and the outlet-side sub-heater 242b.

Embodiments of the hot water heating module equipped with an independent control unit according to the present invention made of such a configuration, as shown in Figure 4, the printed circuit board 271 is coupled to the installation groove formed in the outer casing 210 When the thin case 220 is inserted and installed on one side of the door 10, the inlet 231 and the outlet 232 formed on one side of the thin case 220 are capable of one-touch coupling to the water supply pipe 54 and at the same time , The wire harness 275 provided for supplying power from the power supply unit may include a structure capable of one-touch coupling with a connection member (not shown) provided inside the outer casing 210.

Here, the meaning that one-touch coupling is possible does not mean a complete one-touch literally, but may mean a degree of coupling without water leakage or electrical defects only by a simple fastening operation without a complicated fastening operation.

The control process of the hot water heating module equipped with the independent control unit according to the present invention configured as described above will be briefly described as follows.

First, when the user selects the hot water outlet mode using a separate selection button unit provided in the control panel 273, the micom provided in the printed circuit board 271 uses the surface heater 240 of the thin case 220. It is operated to heat the water flowing through the inlet 231 from the water supply pipe 54 to heat it up to a predetermined temperature or more, and then control it to exit through the outlet 232.

At this time, the microcomputer may be controlled to discharge hot water through the water intake port of the dispenser 18 according to whether the operation of the safety switch and the rotation operation of the operation lever of the dispenser 18.

The hot water discharge control may be performed separately from the main control unit of the refrigerator, water purifier, or water heater through the independent controller 270 according to the present invention.

In addition, when repair and replacement are required due to a failure of the hot water heating module equipped with an independent control unit according to the present invention, as described above, it can be repaired and replaced after simple separation from the refrigerator, water purifier or water heater, so that the user Convenience can be greatly improved.

7 is a control flowchart according to a first embodiment of a method for supplying hot water using a hot water heating module having an independent control unit according to the present invention, and FIG. 8 is hot water supply using a hot water heating module having an independent control unit according to the present invention It is a control flowchart according to a second embodiment of the method.

One embodiment of a method for supplying hot water using a hot water heating module having an independent control unit according to the present invention, as shown in FIG. 7, operates the hot water heating module 200 when the hot water outlet mode is selected by the selection button unit The preheating operation mode step (hereinafter referred to as 'first step (S10)') and the first step (S10) after the rotation operation of the operating lever is detected, the hot water heating module 200 is operated for a predetermined time. This heating operation mode step (hereinafter referred to as 'second step (S20)'), after the second step (S20) hot water discharge step of discharging hot water through the water intake (hereinafter referred to as 'third step (S30)') ).

Here, the execution time of the first step (S10) is defined as the operation time of the hot water heating module 200, and the end time of the second step (S20) should be interpreted as the operation end point of the hot water heating module 200.

In addition, in the second step (S20), the water supplied from the water supply source is heated to a predetermined temperature within the above-described predetermined time by the hot water heating module 200 without interrupting the flow in the water supply pipe, and then discharged through the water intake port. Can be

The third step (S30) may be a step performed only when the operation lever provided inside the dispenser 16 is rotated.

At this time, the water extraction mode before the first step (S10) is a preliminary state of the hot water extraction mode or a preliminary state of the cold water extraction mode. You can keep it as possible.

As the same logic, the water extraction mode after the third step S30 may be switched to the preliminary stage state of the hot water outlet mode or the preliminary stage state of the cold water outlet mode.

However, in the embodiment of the present invention, as described above, when a predetermined time elapses after the hot water discharge, purified water discharge or ice extraction by the user is completed, it may be set to automatically switch to the preliminary stage state of the cold water discharge mode. .

On the other hand, the third step (S30), the safety switch provided in the dispenser 16 may be a step performed when the switching contact is completed in conjunction with the rotation operation of the operation lever 100. This is for the safety of the user, and is intended to prevent a safety accident that may occur when hot water is discharged only by a button operation of the selection button unit.

In addition, the first step (S10) is performed when the hot water outlet mode is selected by the selection button unit, but is performed until detection of the inflow of the beverage container into the dispenser 16 by the container recognition sensor provided in the dispenser 16. Can be.

At this time, the predetermined time of the second step (S20), which is the operating time of the main heating mode, may be interpreted as counting from the time of inflow of the beverage container by the container recognition sensor.

Then, the first step (S10) is provided in the dispenser 16, but may be performed when a user approach is detected by a motion detection sensor that detects a user's motion around. That is, it is to ensure that the heating point in the preheating mode is performed before the button operation of the user's active selection button.

At this time, the predetermined time in the second step (S20), it can be interpreted as counting from the time of the rotation operation of the operating lever. However, it is not necessarily limited to the rotational operation of the operation lever, and it will be natural that the beverage container can be replaced with the time of introduction into the dispenser 16 or the switching contact point of the safety switch.

Here, if the third step (S30) is not performed, the hot water extraction mode selection by the existing selection button unit may be automatically released. This is, only the heating of the hot water by the preheating mode is performed, and when there is no operation of the main heating mode, among the above-described preliminary mode stage state of the hot water discharge mode and the preliminary mode stage state of the cold water discharge mode without discharging hot water It means switching to one.

On the other hand, in the second embodiment of the hot water supply method using the direct water supply type hot water heating module of the refrigerator according to the present invention, as shown in FIG. 6, the hot water outlet mode is selected by the user through the selection button unit. At the moment, the first step S10 may be performed.

In addition, when a predetermined signal according to the rotation of the motion detection sensor, the container recognition sensor, or the operation lever is applied within a predetermined time, the water is heated through the hot water heating module 200 by performing the second step (S20). Heat to.

After the second step (S20) is performed until a predetermined time has elapsed, the hot water may be discharged through the water inlet of the dispenser 16 (S30).

That is, in the hot water supply method using the direct water supply type hot water heating module according to the present invention according to the second embodiment, first, the water is heated in the preheating mode at the moment when the hot water outlet mode is selected through the selection button unit by the user, Since the heating of the main heating mode can be performed based on an application signal by a configuration other than the selection button unit, the operation can be different from that of the first embodiment.

The embodiments of the hot water heating module provided with the independent control unit according to the present invention have been described above in detail with reference to the accompanying drawings. However, the embodiments of the present invention are not limited by the above-described embodiments, and it will be understood that various modifications and equivalent implementations by a person skilled in the art to which the present invention pertains are possible. . Therefore, the true scope of the present invention will be defined by the claims below.

10: refrigerator door 16: dispenser
19: filter 31: refrigerator compartment
51,52: Door back 54: Water supply pipe
200: hot water heating module 210: outer casing
220: thin case 231: inlet
232: outlet 240: planar heater
270: independent control unit 271: printed circuit board
273: control panel portion 274: insulating member

Claims (10)

A thin case detachably provided with a cartridge insertion method in an outer casing in the form of a housing;
A planar heater provided on at least one side of the thin case and provided to heat water flowing in the inner flow space of the thin case; And
A control unit disposed on a printed circuit board coupled to one side of the thin case, and controlling a hot water discharge mode operation separately from the main control unit of the refrigerator, water purifier, or water heater; Hot water heating module having an independent control unit comprising a.
The method according to claim 1,
The independent control unit,
A control panel unit connected to the printed circuit board and applying the hot water outlet mode operation signal; And
A hot water heating module having an independent control unit, which is mounted on the printed circuit board and controls the hot water outlet mode operation based on a signal by an operation of the control panel.
The method according to claim 1,
The independent control unit,
An independent power source provided separately from the main power source of the refrigerator, water purifier or water heater, and provided to apply independent power to the controller and the surface heater;
A temperature sensor that senses an elevated temperature of water flowing through the inner flow space by the planar heater;
A selection button unit provided on the control panel and provided to select the hot water outlet mode;
A flow sensor that senses a flow rate of water flowing through the inner flow space; And
A bimetal that prevents overheating of the water by the planar heater; Including, a hot water heating module having an independent control unit.
The method according to claim 1,
On one side of the thin case, an inlet provided for water to flow into the inner flow space and an outlet for water to be discharged from the inner flow space are formed.
When the thin case is inserted into the outer casing, the hot water heating module having an independent control unit is provided so that the inlet and the outlet are combined with a water supply pipe connected to an external water source.
The method according to claim 1,
The control unit further includes a wire harness for power supply or communication connection,
When the thin case is inserted into the outer casing, the hot wire heating module having an independent control unit, the wire harness is electrically connectable to a connecting portion provided inside the outer casing.
The method according to claim 1,
The planar heater includes a one side planar heater provided on one side of the thin case and the other planar heater provided on the other side of the thin case, a hot water heating module with an independent control unit.
The method according to claim 1,
The thin case is made of stainless steel, a hot water heating module having an independent control unit.
The method according to claim 1,
The planar heater, PID (Proportional Integral Derivative) control by the control unit, a hot water heating module having an independent control unit.
The method according to claim 1,
The planar heater, PTC (Positive Temperature Coefficient) is provided, a hot water heating module having an independent control unit.
The method according to claim 1,
On the inner surface of the thin case, a plurality of heat transfer fins formed integrally with the thin case and protruding toward the inner flow space, hot water heating module having an independent control unit.

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