KR200349176Y1 - Setting Structure of A Non-Contact Power Supply device at Kim-Chi Storage - Google Patents

Abstract

The present invention relates to a kimchi storage solid-state power supply device installation structure, the present invention has a main body having a storage room for storing kimchi and a machine room with a power supply, and a door for opening and closing the storage room, the power supply The contactless power supply device comprising a first coil part mounted on the upper end of the main body and a second coil part mounted on the door side so as to correspond to the first coil part so that power can be transmitted by electromagnetic induction by receiving power from the apparatus. In the kimchi storage is installed, the bottom surface of the door is provided with a protrusion protruding toward the upper surface on which the first coil portion of the main body is mounted, the second coil portion and the second coil portion is mounted in the protrusion portion It is characterized in that the coupling coefficient representing the magnetic coupling degree is increased by reducing the separation distance between one coil part as much as possible.

Therefore, by reducing the separation distance between the main body and the door in which the contactless power supply device is installed to maximize power effectively, by ensuring a smooth rotation of the fan to improve the temperature deviation due to forced convection of the cold storage room It is possible to achieve the purpose, and as a result there is an effect to improve the performance of kimchi storage and to ensure the reliability of consumer products.

Description

Setting Structure of A Non-Contact Power Supply device at Kim-Chi Storage}

The present invention relates to a solid state power supply installation structure of the Kimchi storage, and more specifically, to supply power to the rotating fan installed on the bottom of the door is installed correspondingly between the main body and the door to supply power to the power supply of the main body When installing a contactless power supply that can be supplied power by electromagnetic induction between the door and the main body, reduce the separation distance between the main body and the door as much as possible in the area where the contactless power supply is installed. It is related to the installation structure of the contactless power supply of the kimchi storage so that it can be delivered.

As it is known, the kimchi storage is equipped with aging means for aging kimchi inside using a aging heater, and a refrigeration cycle component for keeping kimchi matured using a principle of a refrigerator at a low temperature, and taste of kimchi. As a home appliance that can maintain the freshness and freshness for a long time, it has recently received much attention from a housewife.

As shown in FIG. 1, the conventional kimchi storage is provided with at least one storage compartment 30 in the interior of the main body 10 forming an exterior, and the upper surface of the storage compartment 30 enters and opens upwards. The door 20 is coupled to the hinge 21 at the top of the rear surface of the main body 10, the front upper portion of the main body 10 is controlled to refrigerated or mature kimchi stored in the storage compartment (30) The display control unit 40 is provided with a plurality of buttons that can be.

As shown in FIG. 2, a storage compartment 30 and a machine compartment 60 are provided inside the main body 10, and a compressor 61 for circulating refrigerant through the storage compartment 30 and the machine compartment 60. ), The condenser 62, a capillary tube (not shown), and the components constituting the basic refrigeration cycle consisting of the evaporator (63).

In addition, the control unit 64 mounted in the control box in the machine room 60 is connected to the display control unit 40 to control the overall operation of the kimchi storage, as well as a PCB board configured with various chips and circuits. It is prepared.

At this time, the control box is equipped with a power supply (not shown) for supplying power to the kimchi storage with the control unit 64.

In addition, the refrigerant pipe constituting the evaporator 63 is wound around the outer wall of the storage chamber 30, and a ripening heater 65 for heating the storage chamber 30 is wound thereunder, and the evaporator ( A temperature sensor (not shown) is provided between the refrigerant pipes 63 to control the temperature by sensing the temperature in the storage compartment 30.

Looking at the operation according to the ripening process and storage process of kimchi using the kimchi storage having such a configuration, first, after storing the storage container (not shown) containing fermented foods, such as kimchi required for the aging process in the storage room (30) By pressing a button of the display manipulation unit 40 provided at the front side of the main body 10, the basic control specification such as the type of kimchi stored therein is selected to drive the kimchi storage.

In this case, when the stored kimchi needs a aging process, the aging process is performed through the operation of the aging heater 65 according to the operating course selected by the control unit 64 provided in the machine room 60.

When the kimchi stored in the storage chamber 30 is aged as desired by the user, the refrigeration cycle is operated to supply cold air to the storage chamber 30.

That is, when the refrigeration cycle is operated as described above, while the cool air is supplied from the evaporator 63 into the storage compartment 30, the temperature in the storage compartment 30 is lowered to a low temperature suitable for the kimchi storage temperature band. Kimchi storage temperature band in the storage room 30 is kept constant by being controlled by a preset program.

Therefore, as a result, the kimchi stored in the storage room 30 can be stored for a long time in a fresh state desired by the user.

However, in the process of maintaining the internal temperature of the storage compartment 30 at a temperature suitable for kimchi storage by supplying cold air to the storage compartment 30, a temperature deviation of about 0.5 to 1 ° C. occurs in the upper and lower portions of the storage compartment 30. Had

As such, since the internal temperature of the storage compartment 30 is not uniformly maintained due to the temperature deviation, the stored kimchi may not be refrigerated evenly in the upper and lower portions of the storage compartment 30, and may be located in the upper and lower portions of the storage compartment 30. There was a problem that the degree of acidosis of the liver is different.

There are many reasons for this problem, but the biggest reason is that the cold air can not be naturally convection toward the upper portion of the storage compartment 30 at a relatively high temperature from the lower portion of the storage compartment 30 at a substantially lower temperature.

Therefore, when considering the characteristics of kimchi exhibiting a sensitive response to temperature changes during the ripening and storage of kimchi, the temperature deviation in the storage compartment 30 may adversely affect kimchi stored for a long time, Minimizing the temperature deviation inside the storage room to less than 0.5 ℃ can be said to be one of the very important technical elements to improve the performance of the Kimchi storage and to ensure the reliability of the consumer's product.

According to the necessity of improving the temperature deviation in the storage compartment 30 as described above, there are various methods for minimizing the temperature deviation by allowing the applicant to agitate each other by forcibly condensing cold air on the upper and lower sides of the storage compartment 30. It has been suggested.

One of them has been proposed by the present applicant to install a fan and a driving motor as a forced convection means in the door to force the cold air circulated by the fan in the storage compartment has been applied for utility model registration.

That is, the present applicant has been applied for utility model registration under the name of "Kimchi storage with forced convection means" and registered in advance (Korean Utility Model Registration No. 243228, date of registration 2001.08.06).

In addition, a patent application (Korean Patent Application No. 2003-52197, filed on July 29, 2003) by the applicant "Kimchi Storage", which is a non-contact power supply and a magnetic levitation rotating fan It is about kimchi storage.

As described above, the inventions applied to the fan (or, magnetically) at the bottom of the middle of the door to improve the upper and lower temperature deviation of the storage compartment by forcibly circulating the cold air supplied into the storage compartment to distribute evenly. It relates to a kimchi storage having a configuration that is installed).

In this case, the pre-pending inventions are characterized in that a contactless power supply device using induced electromotive force is provided when supplying power for driving a fan provided inside the door.

A typical power supply uses a transformer to receive an input voltage and generate a desired output voltage. The transformer has a primary side and a secondary side configured to deliver power.

By the way, the contactless power supply device is characterized in that the power is delivered in a separate state in which the primary side and the secondary side are not in contact with each other.

That is, the contactless power supply device is composed of two assemblies, each separated into a primary side and a secondary side, the primary side assembly is mounted on the main body side of the kimchi storage, the secondary side assembly is installed in a foamed state inside the door have.

As such, the contactless power supply device is capable of transmitting power (power) in a state in which the primary assembly and the secondary assembly are separated from each other.

A more specific configuration of such a contactless power supply device will be described with reference to FIGS. 2 and 3, which refer to drawings illustrated in a pre- filed invention.

Figure 2 is a cross-sectional view showing the internal structure of the kimchi storage according to the prior art, Figure 3 is a cross-sectional view taken along line A-A of Figure 1 showing a state where a contactless power supply is installed between the door and the body of the conventional kimchi storage.

2 and 3, in the contactless power supply 70, a first coil part 71 is installed on the main body 10 side, and a second coil part 72 on the door 20 side. Is installed is a device that can supply power as the induced electromotive force is generated between the first coil portion 71 and the second coil portion 72.

That is, the contactless power supply device 70 is connected to the electric wire 67 so as to receive power from the power supply unit provided in the machine room 60, the upper portion of the main body 10 in close contact with the door 20 The first coil part 71 is attached, and the second coil part 72 is attached to the tip of the door 20 in correspondence with the first coil part 71.

The first coil part 71 is connected to the PCB substrate 71a and the PCB board 71a accommodated in the space surrounded by the protective cover 71c at the lower side of the upper end of the main body 10, and the coil is wound up. It is comprised by the bobbin 71b.

In addition, the first coil part 71 is directly connected to the power supply unit provided in the machine room 60 by an electric wire 67 to receive AC power.

The second coil portion 72 is a space surrounded by the upper protective cover 72c installed in the door 20 to generate an induced current caused by electromagnetic induction between the first coil portion 71. It consists of a PCB board | substrate 72a accommodated in this, and the bobbin 72b which is connected to this PCB board | substrate 72a, and the coil is wound up.

In addition, the second coil part 72 is connected to a fan (not shown) installed inside the door 20 by a wire 68 to supply power to the fan.

In particular, the first coil part 71 and the second coil part 72 are close to the front end of the door 20 and the upper end of the main body 10, that is, close the door 20 to close the storage compartment 30. ) Is sealed to maintain an interval of approximately 5 mm to 10 mm.

That is, the first coil portion 71 and the second coil portion 72 are designed to cause electromagnetic induction in a state in which they are separated from each other at the above intervals.

Of course, when the first coil part 71 provided on the main body 10 and the second coil part 72 provided on the door 20 are far apart, that is, the door 20 is opened to open the storage compartment 20. In one state, electromagnetic induction does not occur even when power is supplied to the first coil part 71.

As described above, the transmission of the power through the contactless power supply device 70 includes the electric wire 67 from the power supply part of the machine room 60 to the first coil part 71 in the state in which the door 20 is closed. When the power is supplied through the s), electromagnetic induction is generated between Faraday's Law between the first coil part 71 and the second coil part 72 and induced on the circuit of the second coil part 72. An electromotive force is generated, and an induced current is generated on the circuit of the second coil part 72 by this induced electromotive force.

At this time, the magnitude of the induced electromotive force generated in the coil according to the Faraday's Law is determined by the rate of change of the magnetic flux passing through the coil, and the intensity of the induced current increases as the magnet moves faster.

That is, if the circular coil is wound N times and the magnetic flux passing through each ring is changed by ΔФ during the time Δt, the average electromotive force induced in the coil during the time Δt is represented by E = -NΔt / ΔФ. .

Therefore, if the current i flowing in the primary coil is changed in two adjacent coils, a change in the magnetic flux passing through the secondary coil causes an induced electromotive force in the secondary coil. This phenomenon is called mutual induction. .

At this time, the induced electromotive force induced in the secondary coil is proportional to the rate of change Δi / Δt of the current flowing in the primary coil.

When the contactless power supply unit using the Faraday law is installed as described above, the power from the power supply unit provided in the main body 10 may be connected to the door 10 without the wire (wire) connection between the main body 10 and the door 20. 20) can be delivered to.

However, conventionally, the contact surface between the main body 10 and the door 20 (particularly, the site where the contactless power supply device 70 is installed) is to be in contact with each other through a planar design, and thus the main body ( 10) and the door 20 is to maintain the separation distance (H; spacing) of about 5mm to 10mm.

As such, the distance between the main body 10 and the door 20 in which the contactless power supply device 70 is installed, that is, the distance between the first coil part 71 and the second coil part 72 is up to 10 mm. Since it is separated by (H; spacing), there is a disadvantage in that the coupling coefficient indicating the degree of magnetic coupling between the first coil portion 71 and the second coil portion 72 is low.

As described above, in the case of having a separation distance (H; interval) of up to 10 mm due to a structural problem due to a planar design on the contact surface between the main body 10 and the door 20, the leakage inductance due to the leakage magnetic flux is large. Since the efficiency of power transmission is reduced and the gap (interval) of about 10mm is located on the way of the magnetic flux, the magnetic resistance is increased and the magnetic flux density is lowered, so that the maximum effective power transmission is not achieved and energy consumption is also achieved. There was a problem that acts as an inhibitor to improve the efficiency.

Therefore, the present invention is conceived to solve the improvement in consideration of the structural problems according to the plane design between the main body and the door when installing the contactless power supply device, the object of the present invention between the door and the main body When installing a contactless power supply that can be powered by electromagnetic induction, the power supply can be transmitted as effectively as possible by reducing the separation distance between the main body and the door as much as possible. In addition, the present invention provides a structure for installing a contactless power supply unit of Kimchi storage, which can improve energy consumption efficiency.

1 is a perspective view showing the appearance configuration of the kimchi storage according to the prior art,

Figure 2 is a cross-sectional view showing the internal structure of the kimchi storage according to the prior art,

3 is a cross-sectional view taken along line A-A of FIG. 1 showing a state where a contactless power supply device is installed between a door and a main body of a conventional kimchi storage;

Figure 4 is a perspective view showing a kimchi storage to which the present invention is applied,

5 is a cross-sectional view taken along line B-B of Figure 4 showing the installation structure of a contactless power supply according to the present invention.

Description of the main symbols in the drawings

1: body 2: door

3: storage room 4: solid-state power supply

4a: 1st coil part 4b: 2nd coil part

5: protrusion

The present invention for achieving the above object has a main body having a storage room for storing kimchi and a machine room with a power supply unit, and a door for opening and closing the storage room, and receives power from the power supply unit to induce electromagnetic induction. In the kimchi storage device is provided with a contactless power supply comprising a first coil portion mounted to the upper end of the main body so that the power can be transmitted by the second coil portion, and a second coil portion mounted on the door side corresponding to the first coil portion, The bottom surface of the door is provided with a protrusion protruding toward the upper end surface on which the first coil portion of the main body is mounted, and the second coil portion is mounted in the protruding portion, so that the second coil portion provided on the door side and the first installed on the main body side are provided. Kimchi storage characterized in that the coupling coefficient indicating the magnetic coupling degree is increased by reducing the separation distance between the coil parts as much as possible Of the contactless power supply it is achieved by providing a device installation structure.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a perspective view showing a kimchi storage to which the present invention is applied, Figure 5 is a cross-sectional view taken along line B-B of Figure 4 showing the installation structure of a contactless power supply according to the present invention.

At this time, in describing the present invention shown in the accompanying drawings, the same reference numerals and the same reference numerals for the same configuration and the same parts as the drawings illustrating the prior art will be different from each other.

As shown in Figs. 4 and 5, the present invention is forcibly convection the cold air supplied into the storage compartment 3 to improve the upper and lower temperature deviation of the storage compartment 3 to the bottom of the center of the door 2 It relates to an installation structure of a contactless power supply unit 4 installed between the main body 1 and the door 2 for driving the fan (not shown) installed.

That is, in the contactless power supply device 4 to which the present invention is applied, as described in the related art, the first coil part 4a is installed on the main body 1 side, and the second nose on the door 2 side. A portion 4b is installed to supply power (power) as induced electromotive force is generated between the first coil portion 4a and the second coil portion 4b.

In more detail, the contactless power supply unit 4 is connected to an electric wire so as to receive power from a power supply unit (not shown) provided in a machine room (not shown) to be in close contact with the door 2 ( The first coil part 4a attached to the upper part of 1) and the 2nd coil part 4b attached to the front-end | tip part of the door 2 correspond to the said 1st coil part 4a.

Here, since the specific configurations of the first coil part 4a and the second coil part 4b of the contactless power supply device 4 are described in the related art, detailed description thereof will be omitted.

However, as described in the related art, in the related art, the upper end of the main body 1 and the front end of the door 2, which are portions where the first coil part 4a and the second coil part 4b are installed, are respectively planar design. The first nose is designed to maintain a distance of approximately 5 mm to 10 mm due to the structural fastening characteristics between the main body 1 and the door 2. In order to improve the above-mentioned conventional problems caused by the separation distance H (interval) between the portion 4a and the second coil portion 4b extending up to 10 mm, the second coil portion 4b is provided in the present invention. It is characterized in that the protrusion 5 is formed at the tip of the door (2) to which it is mounted.

That is, as shown in FIG. 5, the present invention protrudes from the bottom of the front end of the door 2 toward the top surface on which the first coil part 4a of the main body 1 is mounted. Is provided, and in this protrusion part 5, the said 2nd coil part 4b is attached.

Therefore, the distance between the main body 1 and the door 2 as a whole (H; spacing) of approximately 5 mm to 10 mm due to the structural fastening characteristics when assembling the main body 1 and the door 2 as in the prior art (1) and the first coil part (4a) and the second coil part (2) of the contactless power supply device (4) due to the protruding portion (5) protruding from the bottom surface of the front end of the door (2) according to the present invention 4b) between the upper end of the main body 1 and the distal end of the door 2, where the mounting portion 4b) is contacted, as close as possible.

In other words, the separation distance between the second coil portion 4b mounted on the protrusion 5 protruding from the bottom end of the door 2 and the first coil portion 4a installed on the upper end of the main body 1 ( h; the gap) is reduced as much as possible, the coupling coefficient indicating the degree of magnetic coupling is greatly increased, whereby an environment in which sufficient electromagnetic induction may occur between the first coil part 4a and the second coil part 4b. This composition is relatively more effective than the conventional power (power) is to be delivered, and as a result it is possible to improve the energy consumption efficiency.

As described above, according to the present invention, when installing a contactless power supply between the main body and the door to rotate the fan installed on the bottom of the door, the distance between the main body and the door at the site where the contactless power supply is installed is maximized. By reducing, the power can be transmitted as effectively as possible through the contactless power supply device, and as a result, the energy consumption efficiency can be improved.

In addition, it is possible to achieve the purpose of improving the temperature deviation in the high temperature caused by forced convection of the cold storage compartment by securing the conditions that can smoothly operate the rotation of the fan provided on the bottom of the door, and as a result improve the performance of the kimchi storage and There is an effect that can ensure the reliability of the consumer's products.

Claims (1)

It has a main body having a storage room for storing kimchi and a machine room with a power supply unit, and a door for opening and closing the storage room, and is provided at the upper end of the main body so that power can be transmitted by electromagnetic induction by receiving power from the power supply unit. In the kimchi storage is installed, the contactless power supply comprising a first coil portion mounted, and a second coil portion mounted on the door side corresponding to the first coil portion, The lower surface of the door is provided with a protrusion having a structure protruding toward the upper surface on which the first coil portion of the main body is mounted, and the second coil portion and the main body installed on the door side are mounted in the protrusion by mounting the second coil portion. Installation structure of a contactless power supply unit of a kimchi storage, characterized in that the coupling coefficient representing the magnetic coupling degree is increased by reducing the separation distance between the first coil portion installed on the side.