KR101810458B1 - Vacuum insulation panel having a part for monitoring insulation efficiency - Google Patents

Abstract

The present invention provides a vacuum insulation panel having an insulation performance monitoring part. Wherein the vacuum insulation panel having the thermal insulation performance monitoring unit includes a metal film enclosing the core, the metal film surrounding the core; And an adiabatic performance monitoring unit for measuring the temperature change inside the core and determining whether the measured temperature change is within a predetermined temperature change range. Therefore, the present invention can monitor the thermal change in the core inside the vacuum insulated panel to monitor the heat insulation part, check the information about the insulation state of the vacuum insulation panel at any time from outside, And it is possible to easily inspect both sides of the vacuum insulation panel in an article such as a refrigerator to which a vacuum insulation panel is applied, thereby reducing the defective rate of the entire article.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum insulated panel having an insulation performance monitoring unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum insulation panel having an insulation performance monitoring unit, and more particularly, to a vacuum insulation panel having an insulation performance monitoring unit capable of monitoring an insulation state of a vacuum insulation panel used for insulation of a refrigerator body.

Typically, a refrigerator is a device used to freeze food stored at a low temperature for a certain period of time, and a refrigeration cycle device for generating cold air is generally installed in the device.

Therefore, since the refrigerator having the refrigeration and refrigeration functions has a temperature lower than a predetermined temperature, it is necessary to provide a heat insulation function so that the temperature inside the refrigerator is not affected by the external temperature environment.

Conventionally, a vacuum insulation panel embedded in the body of the refrigerator and the door has been used to perform the heat insulation function.

Conventional vacuum insulation panels generally have a core therein.

There is no way to check the heat insulation performance of the vacuum insulation panels from time to time after the vacuum insulation panels are embedded in the main body wall and doors of the refrigerator, .

Accordingly, in the past, thermal insulation performance evaluation of a vacuum insulation panel was performed using a thermal conductivity measurement and a partial reverse vacuum method.

First, when the thermal conductivity measurement is applied to a vacuum thermal insulation panel, it takes about 30 to 60 minutes to measure the thermal conductivity, which leads to a long measurement time. The reliability of the heat insulating performance is deteriorated.

In the case of applying the partial reverse vacuum method to a vacuum insulation panel, the heat insulation failure checking time is as good as less than 1 minute, but the vacuum insulation panel itself is damaged by providing reverse vacuum.

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 a heat insulation performance monitoring system capable of monitoring thermal changes in a core inside a vacuum insulation panel without damaging the vacuum insulation panel, And a vacuum insulating panel having a part of the vacuum insulation panel.

Another object of the present invention is to provide a vacuum insulation panel having an insulation performance monitoring unit which can check information on the insulation state of a vacuum insulation panel at any time from outside and can easily recognize from the outside .

It is still another object of the present invention to provide a vacuum insulation panel having an insulation performance monitoring unit capable of easily inspecting both sides of a vacuum insulation panel in an article such as a refrigerator to which a vacuum insulation panel is applied, have.

In a preferred aspect, the present invention provides a vacuum insulated panel having an insulation performance monitoring part.

Wherein the vacuum insulation panel having the thermal insulation performance monitoring unit includes a metal film enclosing the core, the metal film surrounding the core; And an adiabatic performance monitoring unit for measuring the temperature change inside the core and determining whether the adiabatic adherence is determined according to whether the measured temperature change is included in the predetermined temperature change range.

The thermal insulation performance monitoring unit may include a heating element embedded in the core, a heating body that receives power from the outside to heat the heating element, a temperature sensor that measures the temperature of the heating element, A first controller for receiving a temperature value and determining whether a temperature change according to the measured temperature value is included in a predetermined temperature variation range and determining an adiabatic balance; An RF ID which is electrically connected to the controller and stores information on the determined adiabatic part and transmits and receives the stored information to and from the outside using a certain frequency band; .

Here, the first controller is preferably driven by receiving a drive signal from an external input device through the RF ID.

The metal film may include a lower film on which the core is seated and an upper film which is bonded to the upper film to cover the core,

Preferably, the transmitting / receiving antenna is an antenna protruding outward through a portion where the upper film and the lower film are joined.

In addition, it is preferable that the transmission / reception antenna is a metal film antenna, and is disposed at the junction and is deposited by heat provided from the outside.

The heat insulating performance monitoring unit may include a heating plate attached to the metal film and heating the core by receiving power from the outside, a temperature sensor embedded in the core and measuring a temperature value of the heated core, A second controller electrically connected to the temperature sensor and positioned outside the metal film to determine whether a temperature change according to the measured temperature value is included in a predetermined temperature change range, .

The heat insulation performance monitoring unit may include a heating plate attached to the metal film and heating the core by receiving power from the outside, and a heating plate embedded in the core and having a variable resistance value according to a temperature value of the heated core And a second controller which is located outside the metal film and judges whether or not a change in the resistance value according to the resistance value varying from the thermistor is included in the predetermined resistance value change range and determines the adiabatic difference .

The metal film may include a lower film on which the core is mounted and an upper film bonded to the upper film to cover the core, wherein the temperature sensor and the controller are electrically connected to each other through a lead wire, The lead wire is preferably thermally fused to a portion where the upper film and the lower film are joined.

It is preferable that a coating film is further formed between the outer periphery of the lead wire and the joining portion where the lead wire is provided.

Further, a detachable portion is further provided on the lead wire near the bonding portion,

The detachable portion includes a first terminal portion provided with a terminal groove provided at the end portion of the lead wire to be joined and a second terminal portion provided at a lead wire end portion of the second controller side and having a terminal fitted in the terminal groove .

Preferably, the second controller is electrically connected to an indicator for visually displaying the heat insulation part and an alarm generator for generating an alarm to the outside when the insulation is poor.

INDUSTRIAL APPLICABILITY The present invention has the effect of monitoring the thermal change in the core inside the vacuum insulation panel and monitoring the insulation adherence.

In addition, the present invention has the effect of making it possible to check the information on the heat insulation state of the vacuum insulation panel from time to time and to make it easy for the user to know from outside.

In addition, the present invention can easily inspect both sides of a vacuum insulating panel in an article such as a refrigerator to which a vacuum insulating panel is applied, thereby reducing the defective rate of the entire article.

1 is a sectional view showing a first embodiment of a vacuum insulating panel having an insulating performance monitoring part of the present invention.
FIG. 2 is a block diagram showing the adiabatic performance monitoring unit of FIG. 1. FIG.
3 is a cross-sectional view showing an installation state of the transmitting and receiving antenna of FIG.
4 is a cross-sectional view showing a second embodiment of a vacuum insulating panel having an insulating performance monitoring unit according to the present invention.
5 is a cross-sectional view showing an installation state of a lead wire according to a second embodiment of the present invention.
6 is a cross-sectional view showing another state of installation of the lead wire according to the second embodiment of the present invention.
7 is a cross-sectional view showing that the lead wire according to the second embodiment of the present invention is coupled by the detachable portion.

Hereinafter, with reference to the accompanying drawings, a vacuum insulating panel having an insulating performance monitoring unit of the present invention will be described.

≪ Embodiment 1 >

1 to 3, a first embodiment of a vacuum insulating panel having an insulating performance monitoring part of the present invention will be described.

The present invention aims at determining the adiabatic performance by measuring the thermal change of the core (200) provided inside the vacuum insulation panel.

In the first embodiment of the present invention, it is described that the heat insulation performance is judged when a heat source exists in the core 200 embedded in the vacuum insulation panel.

First, the structure of a vacuum thermal insulation panel according to the first embodiment of the present invention is as follows.

1, the vacuum adiabatic panel of the present invention includes an upper metal film 110 made of a metal, a metal film 100 formed of a lower metal film 120 having both ends joined to the upper metal film 110, A core 200 buried in the metal film 100, and an adiabatic performance monitoring unit 300 for determining adiabatic adherence.

The core 200 is buried in the upper and lower metal films 110 and 120 and the joining portion P where one side of the films 110 and 120 is joined to the opposite ends of the upper and lower metal films 110 and 120, .

Here, the adiabatic performance monitoring unit 300 is installed substantially inside the core 200. However, a part of the transmission / reception antenna 370 described below is partially exposed to the outside through the bonding portion P.

The construction of the thermal insulation performance monitoring unit 300 will be described.

The thermal insulation performance monitoring unit 300 includes a heating element 310, a heating body 320, a temperature sensor 330, a first controller 350, a power supply 340, and a transmission / reception antenna 370 And an RFID ID 360.

The heating element 310 is installed inside the core 200 and is formed in a coin shape made of metal.

The heating body 320 may be a heating coil inserted into the core 200 and electrically connected to the heating body 310 so as to surround the outer circumference of the heating body 310.

The heating body 320 is electrically connected to the power supply 340 and may be heated to a predetermined temperature by receiving power from the power supply 340. Here, the power supply 340 is also inserted into the core 200.

The temperature sensor 330 is inserted into the core 200 and is capable of measuring a temperature such as a thermocouple. The temperature sensor 330 is a sensor for measuring the temperature of the heating element 310, Can be contacted.

The first controller 350 is inserted into the core 200 and is electrically connected to the power supply 340 and the temperature sensor 350. The first controller 350 controls driving of the power supply 340 to apply power to the heating body 320. The first controller 350 may receive a temperature value measured from the temperature sensor 330. [ The first controller 350 sets a reference temperature change range. Here, the temperature change range can be variably set through an external input device.

The first controller 350 receives the measured temperature value, determines whether the temperature change according to the measured temperature value is included in the predetermined temperature change range, and determines whether the heat insulation is positive or negative. Here, the predetermined temperature change range is an experiential value in a criterion judged as a good insulation product.

The RF ID 360 is inserted into the core 200 and is electrically connected to the first controller 350. The RF ID 360 includes a transmitting / receiving antenna 370. The transmitting and receiving antenna 370 is formed in the form of a metal film and may be deposited on the joining portion P of the metal film 100 to partially protrude from the metal film 100.

The RFID information 360 stores information on the adiabatic part, and the information can be wirelessly communicated with the neighboring RFID reader (not shown) and the transmitting / receiving antenna 370. Accordingly, the RF ID 360 and the RF ID recognition device can communicate with each other using a certain frequency band, and the information can be recognized by the recognition device.

Next, the operation of the first embodiment of the vacuum adiabatic panel of the present invention having the above-described structure will be described.

1 to 3, an external device (not shown) transmits a driving signal to the first controller 350 through a transmitting / receiving antenna 370 using a predetermined frequency band.

Then, the first controller 350 activates the power supply 340 to apply a predetermined power to the heating body 320. Accordingly, the heating body 320 heats the heating body 310 connected to the heating body, and the heating body 310 is heated to a predetermined temperature. Accordingly, the heating element 310, which is the metal coin, is heated to a predetermined temperature while being inserted into the core 200.

Here, the temperature sensor 330 measures the temperature value of the heating element 310 to be heated and transmits the temperature value to the first controller 350.

Here, when the heat insulation performance of the vacuum insulation panel made of the core 200 and the metal film 100 is normal, the heating temperature of the heating element 310 rises rapidly compared with the case where the heat insulation performance of the panel is not normal . That is, when the heat insulating performance of the heat insulating panel is normal, the amount of heat lost to the outside of the panel is small, so that the temperature rise of the heat emitting body 310 can be rapidly performed.

Meanwhile, the first controller 350 determines whether a temperature change according to the measured temperature value transmitted for a predetermined time is included in a predetermined temperature change range. If the temperature change is within the predetermined temperature change range, it is determined that the heat insulation is normal. If the temperature change is not included in the predetermined temperature change range, it is determined that the heat insulation is abnormal. That is, the first controller 350 can determine the degree of insulation.

Here, the first controller 350 transmits the result of the determined adiabatic part to the storage of the RFID ID 360, and the RFID ID 360 stores the result as information.

When the external RF ID recognition device approaches the RF ID 360, the RF ID recognition device and the RF ID 360 can use a certain frequency band using the transmission / reception antenna 370 as an information communication path. Accordingly, the RF ID recognition device can wirelessly receive the results of the adiabatic adverse part from the RF ID 360. [

The transmitting and receiving antenna 370 has a shape of a metal film and is deposited between the joining portions P of the metal film 100 and the ends of the joining portions P are exposed to the outside of the joining portion P, Information communication can be achieved.

≪ Embodiment 2 >

Referring to Figs. 4 to 7, a second embodiment of a vacuum insulated panel having an insulating performance monitoring part of the present invention will be described.

The second embodiment is different from the first embodiment in that an external heat source (heating plate 410) is present and thereby the core 200 is heated and the purpose of determining the amount of heat insulation through the thermal change of the heated core 200 have.

4, the heat insulating performance monitoring unit 400 according to the second embodiment of the present invention includes a heating plate 410, a temperature sensor 420 or a thermistor, a second controller 430, .

Here, the temperature sensor 420 may be used to measure the temperature value of the heated core 200, and the thermistor may be used to measure the variable resistance value as the core 200 is heated. Of course, in the second embodiment of the present invention, two examples in which the temperature sensor 420 and the thermistor are independently used are described, but the temperature sensor 420 and the thermistor are used at the same time, You can do it.

In the case where the temperature sensor 420 is used, the heat insulating performance monitoring unit 400 is attached to the outer surface of the metal film 100, A temperature sensor 420 embedded in the core 200 and measuring the temperature of the heated core 200 and a temperature sensor 420 electrically connected to the temperature sensor 420, 100, and a second controller 430 for determining whether a temperature change according to the measured temperature value is included in a predetermined temperature change range, and for determining the heat insulation amount.

In the case of using a thermistor, the adiabatic performance monitoring unit 400 includes a heating plate 410 attached to the metal film 100 and heating the core by receiving power from the outside, A thermistor having a resistance value varying according to a temperature value of the heated core 200 embedded in the metal film 200 and a resistance value change according to a resistance value varying from the thermistor, And a second controller 430 for determining whether or not the detected temperature is included in the predetermined resistance value change range and determining the heat insulation amount.

The metal film 100 includes a lower metal film 110 on which the core 200 is mounted and an upper metal film 120 bonded to the lower metal film 110 to cover the core 200.

The temperature sensor 420 and the second controller 430 are electrically connected to each other through a lead wire 460.

The lead wire 460 may be thermally fused to the portion P where the upper metal film 110 and the lower metal film 120 are joined. When the temperature sensor 420 or the lead wire 460 connecting the thermistor is inserted between the films 110 and 120 and thermally fused, in order to prevent leakage due to the gap therebetween, the lead wire 460 ) Shall be of a certain thickness. That is, the thickness of the lead wire 460 may be 0.2 mm or less. It is preferable that the shape of the lead wire 460 has a square or circular cross section.

5, a separate coating film may not be formed on the lead wires 460 between the films 110 and 120. However, as shown in FIG. 6, the outer circumferences of the lead wires 460 and A coating film 461 may be further formed between the bonding portions P where the lead wires 460 are provided.

Here, the coating layer 461 prevents a gap between the films 110 and 120 and the outer periphery of the lead wires 460, thereby effectively preventing leakage. The coating film 461 may be the same as the material of the film 100, and preferably made of LLDPE.

7, a detachable part 500 is further provided on the lead wire 461 adjacent to the part P to be joined, and the detachable part 500 is provided on the lead P on the side of the part P to be joined, A first terminal portion 510 provided at the end of the wire 461 and a terminal protrusion 511 provided at the end of the lead wire 462 of the second controller 430, And a second terminal portion 520 having a terminal groove 521.

The lead wire 461 on the side of the part P to be joined by the detachable part 500 and the lead wire 462 on the side of the second controller 430 can be easily attached and detached, It can be separated or assembled.

Meanwhile, the second controller 430 is electrically connected to an indicator 440 that visually displays the adiabatic portion, and is electrically connected to an alarm generator 450 that generates an alarm to the outside when the adiabatic failure occurs .

The operation of the second embodiment constructed as described above will now be described.

Referring to FIG. 4, the second controller 430 may be driven by receiving a driving signal from the outside.

The second controller 430 heats the heating plate 410 contacted with the metal film 100 using a power supply not shown. The heating plate 410 may function as a kind of heater. Here, the heating temperature range of the heating plate 410 may be within the range of 50 to 85 degrees Celsius, which is an experiential temperature enough not to damage the metal film 100 as the sheathing agent. It is also preferable that the contact time between the heating plate 410 and the metal film 100 during heating is set within 60 minutes.

When the heating plate 410 is heated as described above, heat generated from the heating plate 410 can be transferred to the core 200 through the metal film 100. Here, the heating temperature of the core 200 when the heat insulating performance of the heat insulating panel is normal may be lower than the heating temperature of the core when the heat insulating performance is abnormal. That is, the thermal conductivity is lower than in the case where the heat insulating performance is abnormal when the heat insulating performance is predominant.

When the core 200 is heated as the heating plate 410 is heated as described above, the temperature sensor 420 or the thermistor embedded in the core 200 heat and temperature values of the core 200 heated And transmits it to the second controller 430.

The second controller 430 calculates a temperature change or a resistance value change according to the heated temperature value or the resistance value, and determines whether it is included in the preset temperature change range or the resistance value change range.

If the temperature change or the resistance value change according to the heated temperature value or the resistance value is included in the predetermined temperature change range or the resistance value change range, the second controller 430 determines that the heat insulation performance is normal. If not, It is judged to be normal.

Then, the result of the determination of the heat insulation parts is transmitted to the electrically connected indicator 440 and displayed visually on the outside. If it is determined that the result of the heat insulation performance is abnormal, that is, the second controller 430 transmits an electrical signal to the alarm generator 450, the second controller 430 may generate an alarm for notifying the outside of the insulation failure.

100: metal film
200: Core
300, 400: Insulation performance monitoring section
310: Heating element
320: heating element
330: Temperature sensor
340: Power supply
350: first controller
360: RF ID
370: transmitting / receiving antenna
410: heating plate
420: Temperature sensor
430: second controller
460: Lead wire
461: Coating film
500: detachable part

Claims (11)

A metal film in which a core is embedded and which surrounds the core; And
And an adiabatic performance monitoring unit for measuring a change in temperature inside the core and determining whether the adiabatic adherence is determined according to whether the measured temperature change is within a predetermined temperature change range,
Wherein the metal film comprises
A lower film on which the core is seated; And
And an upper film joined to the lower film to cover the core,
Wherein the thermal insulation performance monitoring unit comprises:
A heating plate attached to the metal film and heating the core by receiving power from the outside;
A temperature sensor embedded in the core and measuring a temperature value of the core to be heated;
A second controller which is electrically connected to the temperature sensor and is located outside the metal film and judges whether a temperature change according to the measured temperature value is included in a predetermined temperature change range and judges adiabatic integrity; And
And a lead wire electrically connecting the temperature sensor and the second controller to each other and thermally fused to a portion where the upper film and the lower film are joined,
And a second terminal portion provided on the lead wire at the side of the second controller and having a terminal fitted in the terminal groove, wherein the first terminal portion is provided on the lead wire, Wherein the detachable part is provided with a detachable part having a heat insulating performance monitoring part. delete delete delete delete delete delete delete The method according to claim 1,
And a coating layer is further formed between the outer periphery of the lead wire and the bonding portion where the lead wire is provided. delete The method according to claim 1,
Wherein the second controller is electrically connected to an indicator for visually displaying the heat insulating part and an alarm generator for generating an alarm to the outside when the judgment result of the heat insulating part is bad. panel.

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