KR100638899B1 - Heat radiation device of refrigerator equipped with display device - Google Patents

Abstract

The present invention relates to a heat dissipation device of a refrigerator having a display device, and more particularly, to a display device accommodating part formed at a predetermined position of the refrigerator, a display device selectively accommodated in the display device accommodating part, and the display. One end is connected, and the other end is related to a heat dissipation device of a refrigerator having a display device including a thermal siphon connected to a heat dissipation unit.

According to the present invention, in a refrigerator provided with a display device, a separate power consumption is not required for discharging heat generated from a circuit unit, and noise generated while a fan used for conventional heat dissipation may be eliminated. It is also effective in ensuring the reliability and stability of the circuit.

Heat sink, heat pipe, heat sink, thermo siphon of refrigerator with display device

Description

Heat dissipation device of a refrigerator equipped with a display device {A protection against heat apparatus of monitor refrigerator}

1 is a perspective view of a refrigerator having a display device;

2 is an exploded perspective view of a display device accommodated in a refrigerator.

3 is a cross-sectional view of II ′ of FIG. 1;

4 is an enlarged side view of the heat transfer process;

5 is a perspective view of a thermal siphon.

6 is a view for explaining another embodiment of the present invention.

7 illustrates another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: refrigerator 2: body

3: door 4: control panel

5: Handle 6: Display device

7: Display unit 8: Speaker

9: Operation button 10: Display panel

12: LCD 13: LCD cover

14: circuit board 15: EM shield cover

17: heat sink 20: heat siphon

21: Insulation 22: Center shaft

23: steering wheel 24: motor

25: Thermal Siphon 30: Thermal Siphon Contact

31: Heat bridge 32: Heat pipe

35: moving space 40: display device housing

50: heating part

The present invention relates to a heat dissipation device of a refrigerator equipped with a display device, and more particularly, to a structure capable of dissipating heat generated from the display device in a refrigerator equipped with a display device.

As is well known, the refrigerator is a device for freshly storing food or cooking materials by releasing cold air in a refrigerator using a cooling cycle. Recently, refrigerators having various functionalities have been developed to satisfy various needs of consumers.

In particular, while conventional electronic products have only one function, recent electronic products have been made into a multifunctional electronic product that can be utilized as various electronic products beyond the original functions of the product.

 As one example, a refrigerator having a display device has recently been used. The display device is implemented as a thin, light weight liquid crystal display device. The liquid crystal display has a display panel and is installed on the front of the door. The liquid crystal display device displays not only the status information of the refrigerator such as the amount and type of food stored therein, but also various functions such as watching TV, shopping on the Internet, shopping on the home, memo function, and image chat Can be performed.

However, in such a conventional refrigerator, since the display device is fixed to the front door of the door, it is not easy to discharge the heat generated from the display device.

In the related art, heat generated in a circuit part is discharged to the outside using a small fan. In more detail, the fan was installed at one side of the circuit unit to radiate heat between the display device and the heat insulating material on the door.

However, the efficiency of the fan is small, and the gap for dissipating heat is narrow, and the efficiency is remarkably decreased. For the same reason, the reliability and stability of the circuit may be caused. In addition, the noise generated from the fan is large, causing inconvenience to users, and unnecessary power is consumed to operate the small fan.

In addition, in the case of dissipating heat of the circuit part by using the discharge fan, the heat is directly discharged to the outside through the upper part of the display apparatus. For this reason, there is a problem that the hot heat is discharged to the face of the consumer and thereby the consumer may feel uncomfortable.

The present invention has been made to solve the above-mentioned problems of the prior art, an object of the present invention is to propose a heat dissipation structure of the display device to allow the heat generated in the display device to be quickly radiated to the outside.

In addition, an object of the present invention is to propose a heat dissipation structure of a display device that allows heat generated in the display device to be quickly dissipated to the outside even in a state in which additional structures such as cooling fans are not required.

In addition, an object of the present invention is to propose a heat dissipation structure of a display device in which cooling of the display device can be performed by cold air held in the refrigerator itself.

The heat dissipation device of a refrigerator equipped with a display device according to the present invention for achieving the above object is a display device receiving portion formed at a predetermined position of the refrigerator, a display device selectively accommodated in the display device receiving portion and the display once This is connected and the other end includes a thermal siphon connected to the heat radiating portion.

According to the present invention, in a refrigerator provided with a display device, a separate power consumption is not required for discharging heat generated from a circuit unit, and a fan used for conventional heat dissipation is not necessary, and thus the fan is operated. You can also eliminate the noise. It is also effective in ensuring the reliability and stability of the circuit.

Hereinafter, specific embodiments of a refrigerator equipped with a display device according to the spirit of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily implement other embodiments by adding, changing, deleting, adding, and the like within the scope of the present invention.

1 is a perspective view of a refrigerator to which the idea of the present invention is applied, and FIG. 2 is an exploded perspective view of a display device according to the idea of the present invention.

1 and 2, the refrigerator 1 of the present invention has a low temperature freezer and / or a refrigerator formed therein, and the front part of the refrigerator 1 allows the main body 2 and the front of the main body 2 to be selectively opened and closed. A pair of doors (3), a handle (5) formed on the inner edge of the door (3), and an operation unit (4) formed at one side of either door (3) to control the operation of the refrigerator And a display device 6 formed on the other door 3.

In addition, instead of the operation part 4, another apparatus such as an ice maker or a water supply device may be formed. In addition, the door 3 is generally a handle (5) is formed on the edge portion of the inside of the door, to enable a rotational movement around the hinge formed on the outside. In addition, the display device 6 is accommodated inside the display device accommodating part (see 40 of FIG. 3) formed in a predetermined position of the door 3, and the display part 7 and the edge part formed in the center part thereof. Speaker 8 is formed in the, and the operation button 9 to control the operation of the display device 6 is included.

Meanwhile, referring to FIG. 2, which illustrates an assembly view of a display device provided in a refrigerator, the display device includes a display panel 10 positioned at the front of the display device to protect the display device and to enhance the appearance of the display device. LCD 12, which is assembled to the rear of the display 10 and displays the image, and is attached to the LCD cover 13 and the rear of the LCD cover 13 attached for reinforcing and fixing the strength of the LCD 12 and the image signal and A circuit board 14 for controlling the display device is included. In addition to the various circuit elements, the circuit board 14 includes a heat sink 17 located at one side of the circuit board to collect heat generated from the circuit element and heat generated from the circuit element 17. A heat pipe (see 32 in FIG. 4), which serves to deliver the same, is included.

Meanwhile, the display device includes an EMI shield cover 15 positioned at the rear of the circuit board 14 to block electromagnetic waves and to serve as a passage through which a thermal siphon (see 20 in FIG. 4) passes. Included. A part of the EM shield cover 15 includes a heat siphon contact portion 30 for transferring heat between the heat sink 17 and the heat siphon 20.

Referring to the configuration and operation of the display apparatus of the refrigerator 1 having the display apparatus, the refrigerator 1, in which the television signal is received, has a television receiving control unit for receiving the television signal and controlling the television viewing. And a display means connected to the television reception control unit and wired to receive the television signal and output the television signal.

In the refrigerator 1 in which the television signal configured as described above is received, a television reception control unit is integrally formed with the refrigerator, and the television reception control unit is connected to a television reception antenna for transmitting a television signal with a wired cable.

The heat dissipation device of the refrigerator provided with the display device according to the present invention is characterized in that the heat generated during the operation of the television is radiated. Briefly describing the heat dissipation process of the television, heat generated during operation of the display device is collected in the heat sink, and the collected heat is radiated to the inside or outside of the refrigerator through the heat pipe. Hereinafter, each part will be described in detail in the above-described heat dissipation device.

3 is a cross-sectional view taken along line II ′ of FIG. 1.

Referring to FIG. 3, a refrigerator having a display device is positioned at a front side of the refrigerator, and is positioned at a rear side of the display device accommodating part 40 and the display device accommodating part 40 on which a monitor is mounted. The thermal siphon contact portion 30 in contact with the siphon 20, the thermal siphon 20 passing heat through the thermal siphon contact portion 30 to heat the inside of the refrigerator, and the thermal siphon 20 are seated. A central axis 22 for controlling heat transfer by controlling the direction of the heat transfer and a handle 23 formed on one side of the central axis to rotate the heat siphon are included.

More specifically, the heat transmitted from the heat pipe 32 and the heat pipe 32 to collect the heat generated from the circuit components on the circuit board 14 and the heat generated from the circuit components, which are an integrated cause of heat generation, to the heat sink 17. The dust sink includes a heat sink 17 and a heat siphon contact portion 30 connecting the heat sink 17 and the heat siphon 20.

Looking at the heat dissipation process of the heat dissipation device having the above configuration, the heat generated from the circuit component is transferred to the heat pipe through the heat bridge, the heat is collected to the heat sink 17 through the heat pipe (32). . Heat collected in the heat sink is transferred to the heat siphon 20 via the heat siphon contact 30. The thermophony 20 transfers heat through the principle of two phase flow, which changes from liquid to gas where gravity acts. Evaporation heat absorbed when the liquid changes into gas is supplied from the high temperature portion, and the heat of condensation generated when the gas changes into liquid is released to the low temperature portion. Since the working siphon condensed in the condenser is returned to the heating unit by the force of gravity, the thermosiphon is necessarily located under the condensing unit. That is, as described above, the thermal siphon serves to transfer heat by convection in a direction opposite to gravity. For this reason, the thermal siphon 20 is formed upward in the thermal siphon contact portion 30. Heat moved upward through the thermal siphon 20 is finally introduced into the refrigerator and cooled due to cold air in the refrigerator.

FIG. 4 is an enlarged side view of the heat transfer unit, and a process of transferring heat generated inside the display device 6 will be described with reference to FIG. 4.

Referring to FIG. 4, the circuit part is positioned on the heat generating part 50 that emits a large amount of heat on the circuit part and the upper side of the heat generating part 50, and serves to transfer heat generated from the heat generating part 50 upward. A heat sink (32) attached to a heat bridge (31) and an upper surface of the heat bridge (31) to transfer heat, and a heat sink in which heat transferred from the plurality of heat pipes (32) is collected; 17) and the heat siphon contact portion 30 and the upper side of the heat siphon contact portion 39 which serves as a passage for discharging the heat collected in the heat sink 17 into the inside of the refrigerator to discharge heat into the inside of the refrigerator. A thermal siphon 20 that acts as a bridge is included.

In more detail, a heat bridge 31 is formed in a portion of the circuit element of the circuit portion. In more detail, not all circuit elements of the circuit part emit a large amount of heat, and thus, among the circuit elements, a heat bridge 31 is formed on an upper surface of the circuit element to determine a device that emits a large amount of heat. Is formed. A material having high thermal conductivity is used for the heat bridge 31, and is used to connect the heat pipe 32 and the circuit element to facilitate the progress of heat. Heat passing through the heat bridge 31 is collected in the heat sink 17 via the heat pipe 32. The heat pipe 32 acts as a passage through which heat moves from the high temperature portion to the low temperature portion according to the second law of thermodynamics. However, since a material having high thermal conductivity is used, heat generated from a circuit element is faster and more smoothly. 17) to be delivered. Heat collected in the heat sink 17 is transferred to the heat siphon 20 through a heat siphon contact portion 30 connected to an upper portion of the heat sink 17. The heat siphon contact portion 30 plays a role similar to that of the heat bridge 31 and transfers heat collected in the heat sink 17 to the heat siphon 20. Heat transferred to the thermal siphon contact portion 30 is discharged into the refrigerator compartment through the thermal siphon 20 connected to the upper side of the thermal siphon contact portion 30. As described above, the thermal siphon 20 has a property of transferring heat in a direction opposite to gravity, and the thermal siphon 20 is positioned above the thermal siphon contact portion 30.

On the other hand, the heat transfer from the heat pipe 32 to the heat sink 17 is due to the nature of the heat transfer from the high temperature portion to the low temperature portion by the second law of thermodynamics. That is, the heat sink 17 should always be kept at a lower temperature than the heat generating portion, but normal heat flow may be maintained. Therefore, the amount of heat released into the air from the heat sink 17 through the heat siphon 20 must be greater than the amount of heat transferred to the heat sink 17 through the heat pipe 32. In other words, the system can be maintained when the heat siphon 20 can process more heat per unit time than the heat pipe 32.

The heat bridge 31 may be made of a material that minimizes heat loss and firmly fixes the circuit part and the heat pipe 32. An aluminum epoxy or a conductive tape may be used. However, the material is not limited thereto, and a material having excellent thermal conductivity within a range apparent to those skilled in the art may be used.

 In addition, copper or silver having high thermal conductivity is preferably used in the heat siphon contact portion 30 or the heat pipe 32 so as to effectively collect the heat generated from the heat generating portion 50 to the heat sink 17. Substances can be used.

In addition, the heat bridge 31, the heat siphon contact 30, the heat pipe 32, the heat sink 17 and / or the heat siphon 20 may be suitable according to the size or shape of the circuit component or the heat sink 17. Produced in size or shape, in more detail, the size and shape are determined by the amount of heat generated by the heat generating unit 50, the required heat dissipation amount determined according to the size of the circuit element and the material of the circuit element. In other words, the thickness and width can be adjusted in addition to the circular or rectangular cross section.

On the other hand, when the plurality of heat generating parts 50 on the circuit part of the display device is present on the circuit board or to increase the efficiency of heat dissipation, the heat sink 17 and the heat pipes 32 are provided on the circuit board. Formation can increase the heat dissipation efficiency.

The heat dissipation device according to the spirit of the present invention is found to be applicable to all electronic devices that require heat dissipation, such as a general television or computer in addition to the monitor attached to the refrigerator.

On the other hand, recently, a plurality of circuit components are integrated to form a circuit board. In this case, the display device includes a heat siphon that removes a heat pipe and one end is connected to the display and the other end is connected to a heat dissipation unit. The heat dissipation device of the refrigerator can be proposed.

5 is a perspective view of the thermosiphon.

Referring to FIG. 5, the thermal siphon 20 is formed in a substantially rectangular parallelepiped shape, and an end portion of the thermal siphon has a predetermined angle such that there is no heat loss between the display device accommodating portion 40 and the insulator 21 in the chamber. It is inclined.

In addition, the thermal siphon 20 is formed to be rotated with respect to the central axis 22 formed to extend from one side of the handle 23. In more detail, the heat siphon 20 to be rotated about the central axis 22 passing through the center of gravity of the heat siphon is rotated to form a circular orbit. The moving space 35, which is an empty space forming the circular track, is formed inside the heat insulating material in the furnace.

On the other hand, when the display device does not operate, the user adjusts the handle 23 to rotate the thermal siphon 20 to isolate the interior and exterior of the refrigerator so that external heat does not enter the interior. As described above, a control device such as a handle 23, a motor 24, or the like is used as the adjustment device for the rotation of the thermosiphon, and any device may be used as long as it is not limited thereto.

6 is a view for explaining a second embodiment of the present invention. The second embodiment of the present invention is the same as the first embodiment in many parts, and focuses on other parts.

Referring to FIG. 6, a motor 24 is used to rotate the thermosiphon to block the interior and exterior of the chamber. More specifically, as shown in FIG. 3, rather than manually rotating the thermal siphon 20 about the central axis 22 using the handle 23, the present embodiment uses the motor 24. It is configured to rotate automatically. In the motor 24, a remote controller or a wired / wireless operation device may be installed to control the operation. When the display device is operated by connecting to a display device operation switch, the thermal siphon is connected to the thermal siphon contact portion 30 and the interior of the vehicle. To connect the, and when the power of the display device is turned off, the thermal siphon 20 may be configured to block the interior and exterior. However, the present invention is not limited thereto, and a new control device can be devised by further limiting the conventional techniques in the technical field to which the present invention belongs.

7 is a view for explaining a third embodiment of the present invention. The third embodiment of the present invention is the same as the first embodiment in many parts, and focuses on other parts.

Referring to FIG. 7, as shown in FIG. 3 and FIG. 6, the display device is configured to directly discharge the heat to the outside, instead of cooling the heat generated during operation of the display device by using a thermal siphon. A fridge is proposed for a refrigerator.

As described above, by directly connecting the thermosiphon to the outside, it is not necessary to rotate the thermosiphon with respect to the central axis 22, and to remove the central axis 22, the handle 23, the motor 24, and the like. Is possible. Therefore, the manufacture of the refrigerator becomes simpler, and the manufacturing cost may also be reduced.

In more detail, referring to the configuration and operation of the embodiment, the heat generated from the heat generating portion 50 on the circuit board 14, the heat bridge 31 is formed through the heat bridge 31 formed above the heat generating portion 50 It is delivered to the heat pipe 32 formed on one side of.

Heat transferred to the heat pipe 32 is integrated in the heat sink 17 through the heat pipe 32. The heat accumulated in the heat sink 17 is in vertical contact with the heat sink, is refracted upward, and is released out of the air through the formed thermal siphon.

According to the spirit of the present invention, in a refrigerator provided with a monitor device, a separate power consumption is not required for discharging heat generated from a circuit unit, and noise generated while operating a fan used for conventional heat dissipation can be eliminated. It is also effective in ensuring circuit reliability and stability.

Claims (6)

Display devices; A door having a display device accommodating part accommodating the display device; And a thermosiphon which connects the heat generating unit of the display device to the inside of the refrigerator and transmits heat generated from the display device to the interior of the refrigerator. The thermosiphon is rotatably mounted so that the display device and the interior of the refrigerator can be selectively connected or disconnected. The method of claim 1, The thermosiphon is a heat dissipation device of a refrigerator equipped with a display device, characterized in that the automatic or manually rotatable. The method of claim 1, And a rotating shaft extending from the thermosiphon, and a driving motor for driving the rotating shaft. The method of claim 1, And a rotating shaft extending from the thermosiphon and a handle formed at an end of the rotating shaft to be exposed to the outside of the door. delete delete

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