KR19990003179U - Hole for installing thermostat formed in magnetron - Google Patents

Abstract

The present invention relates to a hole for installing a thermostat device formed on a magnetron. In the related art, one side hole and the other side hole opposite to the magnetron are formed in four places on the surface of the magnetron. It is limited to four places, the temperature difference is so severe that there is a problem that the application of a temperature control device that is not limited in the range that can regulate the temperature is limited, the type is very difficult.

Therefore, the present invention is to form a hole in the surface of the magnetron so that the temperature control device to prevent the temperature rise of the magnetron, the first hole 110, the second hole 120, the third hole 130, By arranging the fourth hole 140, the fifth hole 150, the sixth hole 160, the seventh hole 170, and the eighth hole 180 in a zigzag shape, It can be installed at a location is a useful design that can effectively control the excess of the magnetron by applying the temperature control device 200, which is limited in the type that can measure the temperature is more various than the conventional limited type.

Description

Hole for installing thermostat formed in magnetron

In general, a vacuum tube called magnetron is widely used in an oscillation tube of a radar, and is used in daily microwave ovens as a household product. The high frequency oscillated from the magnetron of the microwave oven depends on the type of food and its use in the home. It is used as a heating source to cook foods to suit the taste by reheating after direct heating or thawing.

That is, the microwave oven is provided with a magnetron in one side of the electric compartment, the high frequency generated by the magnetron is irradiated into the cooking chamber through the waveguide, the bottom of the cooking chamber is provided with a tray on which the cooking vessel is placed, the lower portion of the tray A tray motor capable of rotating the tray is installed so that the cooking vessel placed thereon is rotated along the tray, so that the high frequency radiated to the cooking chamber is uniformly transmitted to the food in the container and is uniformly heated.

Microwave ovens can be grilled in addition to cooking by the high-frequency microwaves by installing a heater on the upper surface of the cooking chamber and a single function microwave to thaw, warm and cook food using only the high-frequency oscillation of the magnetron. It is divided into multifunctional microwave oven which can perform cooking and oven cooking together.

In addition, as described above, the microwave oven divided into a single function and a multi-function control panel is installed at one side of the front panel of the electrical equipment room so as to appropriately select the high frequency or the intensity of the heater and its operation time according to the amount of food. The control panel is equipped with output control knob, timer knob and door open button to control its function.

Therefore, the magnetron oscillates a high frequency corresponding to the strength or weakness for a predetermined time according to the selection of the output control knob and the timer knob. The high frequency oscillated is irradiated to the food in the cooking chamber through the waveguide and uniformly heated. Will be cooked or thawed.

In addition, the configuration of the magnetron for oscillating the high frequency as a heating source of the microwave oven is composed of a cathode component, a plurality of heat sinks and permanent magnets, and the like, and a heat sink is inserted into the anode cylinder, and a permanent magnet is disposed above and below the anode cylinder. And other components are connected to the components.

The magnetron constructed as described above has a cathode placed on the center axis of the anode cylinder and a magnetic field is applied in parallel with the axis. It is the permanent magnet made of ferrite that makes this field. In other words, the electrons from the cathode of the central axis are projected out toward the surrounding anode. However, due to the magnetic field of the strong permanent magnet acting in the up and down direction, the magnitude of the electrons is bent and the vortex turns to the anode. When the electron enters the cavity of the anode, the cavity acts like a series circuit of coil and condenser and vibrates. It generates current, causing high frequency oscillation.

In addition, as the magnetron oscillates a high frequency as described above, since a considerable heat is generated, a heat sink is installed in the anode tube to disperse the heat, and the dispersed heat is supplied to the cooling air generated from the cooling fan installed at one side of the electrical chamber. By cooling.

On the other hand, the microwave oven uses only the magnetron as a heating means, or the magnetron and the heater at the same time to cook food in the cooking chamber, when the temperature of the cooking chamber and the magnetron is too high due to the heat and high-frequency energy of the heater installed in the cooking chamber. This burns or fires and damages the magnetron.

Therefore, when the temperature of the cooking chamber and the temperature of the magnetron itself is overheated above the normal temperature, the temperature control device such as a thermostat is used as a means for automatically controlling the operation of the microwave by itself.

That is, the temperature control device has a temperature control device for the cavity to detect the temperature of the cooking chamber by the heat of the heater and a magnetron temperature control device for detecting the temperature of the magnetron, the temperature control device for the cavity is overheating the cooking chamber by the no-load operation Or in the case of overcooking of food due to excessive heat and high frequency energy and fire in the cooking chamber, it cuts off the power and prevents overcooking and fire. The magnetron temperature control device cools the magnetron. When the temperature of the magnetron rises due to inoperable or abnormal operation, it cuts off the power supply and prevents damage to the magnetron.

The thermostat that plays this role automatically opens the power loop of the heating means by opening the contact as the bimetal of the thermostat bends automatically when the temperature rises above the normal temperature due to overheating of the cooking chamber or magnetron. When the driving of the heating means is stopped and returned to the normal temperature, the bimetal is automatically returned to its original position while closing the contact to close the power loop of the heating means, thereby driving the heating means.

The bimetal is a functional material in which a low-expansion metal and a high-expansion metal are bonded together, and a bending stress is generated due to a thermal expansion difference between the two metals in response to a temperature change, and a metal having a high thermal expansion coefficient bends toward a metal having a low thermal expansion coefficient.

1 shows holes formed on the surface of the magnetron in order to install the temperature controller, and eight holes 11 to 18 are formed on the surface of the magnetron 10, and the first hole 11 and The second hole 12 forms one pair, the third hole 13 and the fourth hole 14 form two pairs, and the fifth hole 15 and the sixth hole 16 form three pairs. The seventh hole 17 and the eighth hole 18 are formed in four pairs at regular intervals.

Therefore, if the temperature of the magnetron 10 is 300 ° C. or higher by selecting the temperature control device 20 and selecting one of four locations, the temperature control device 20 operates to supply power. It is supposed to block.

And if the temperature difference between 1 set and 4 sets is about 30 ℃ and accordingly the temperature difference of each set is 10 ℃, the range (regulation range) that regulates the overheated temperature is different according to each temperature difference. The temperature control device 20 will be installed.

Therefore, when the temperature control device 20 is installed, one of four places should be selected and the temperature control device 20 should be installed according to the temperature of the place. In this case, the temperature control device 20 only by the temperature change of four places. Since it is necessary to install the temperature control device 20, the width of the selection is small, in particular, the temperature control device 20 is limited to the range of the regulatory range is not limited to select the temperature control device 20 having an appropriate regulation range. There was a problem that was quite difficult to do.

Therefore, an object of the present invention is to solve the above problems, by varying the arrangement of the holes for mounting the temperature control device on the surface of the magnetron by varying the temperature measurement site on the surface of the magnetron, limited temperature measurement It is to provide a thermostat installation hole formed in a magnetron to facilitate the installation of the device.

The purpose of the present invention is to form a hole in the surface of the magnetron so that the thermostat to prevent the temperature rise of the magnetron, the first hole, the second hole, the third hole, the fourth hole, the fifth hole This is achieved by arranging the holes, the sixth holes, the seventh holes, and the eighth holes in a zigzag shape.

The present invention is composed of eight holes for mounting the thermostat on the magnetron as a zigzag, so that the thermostat can be installed in seven places, so that the temperature measuring device is diversified, which makes it easier to use a limited type of thermostat. It is possible to achieve the above object because it can be effectively applied to control the transfer of the magnetron.

1 is an exploded perspective view of a main portion showing a conventional configuration.

2 is a plan view of main parts of a conventional configuration;

Figure 3 is an exploded perspective view showing the main portion showing an embodiment according to the present invention.

4 is a plan view of main parts of the present invention;

* Description of the symbols for the main parts of the drawings *

100: magnetron 110: first hole

120: second hole 130: third hole

140: fourth hole 150: fifth hole

160: sixth hole 170: seventh hole

180: eighth hole 200: temperature controller

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, which are attached to the technical configuration and the effect of the present invention.

That is, Figure 3 is an exploded perspective view of an embodiment according to the present invention, Figure 4 is a plan view of the present immediate view, as illustrated in the present invention is a temperature control device 200 to prevent the temperature rise of the magnetron 100 Holes 110 to 180 may be formed on the surface of the magnetron 100 so that the first and second holes 110 and 180 may be installed, and the first hole 110, the second hole 120, the third hole 130, and the fourth hole 140 may be formed. The fifth hole 150, the sixth hole 160, the seventh hole 170, and the eighth hole 180 are arranged in a zigzag shape. In the figure is a bracket of the temperature control device 200 of the reference numeral 210, 211 is a fastening hole formed in the bracket, 300 is a screw.

The present invention formed as described above has a temperature control device 200 is installed on the surface of the magnetron 100 to detect the temperature of the magnetron 100 to control when the temperature is elevated, the temperature control device ( 200 is usually installed by the bracket 210, the fastening hole 211 is formed on both sides of the bracket 210.

Therefore, two holes 130 and 140 are formed on the surface of the magnetron 100 so that the bracket 210 can be fastened, and both fastening holes 210 of the bracket 210 are formed. After the holes 130 and 140 are matched, they are fixed as fastening means such as screws 300.

That is, in the related art, one side hole and the other side hole opposite to each other are formed into four groups on the surface of the magnetron 10 so that the temperature can be measured in four places, and the four temperature differences are large. It is very difficult to apply a limited temperature control device 20 that does not vary in the range that can regulate the temperature.

However, according to the present invention, the eight holes 110 to 180 are arranged in a zigzag shape, and the second hole 120 is positioned on the center line of the first hole 110 and the third hole 130, and the second hole 120 is disposed. ) And eight holes 110 to 180 are formed in a manner in which three holes 130 are positioned on the center line of the fourth hole 140 and the first hole 110, the second hole 120, and the first hole 110. 2nd hole 120 and 3rd hole 130, 3rd hole 130 and 4th hole 140, 4th hole 140, 5th hole 150, 5th hole 150 and 6th Since the distance between the hole 160, the sixth hole 160 and the seventh hole 170, the seventh hole 170 and the eighth hole 180 are all the same, the temperature measuring device 200 is the first hole It can be installed diagonally like the 110 and the 2nd hole 120 or the 2nd hole 120 and the 3rd hole 130, and can be installed in seven places as a whole.

Therefore, as the area capable of measuring the surface temperature of the magnetron 100 is subdivided and increased, the temperature limiting device 200 having a limited range and a limited type can be easily determined and installed. The temperature rise of 100) can be controlled more effectively.

As described above, according to the present invention, as the holes formed in the magnetrons are formed in a zigzag pattern to install the temperature control device, the area capable of detecting the temperature of the magnetrons is more diverse than the conventional one, and thus the type is limited. It is a useful design to effectively control the temperature rise of the magnetron by making it easier to apply the temperature measuring device.

The present invention relates to a hole for installing a thermostat device to a magnet for irradiating high frequency to the cooking chamber of a microwave oven, and more specifically, to form a hole in the surface of the magnetron in order to install a thermostat device for preventing overheating of the magnetron. The magnetron is formed on the magnetron to change the hole arrangement so as to vary the temperature measuring portion of the magnetron, thereby facilitating the selection of a temperature control device having a different range of temperature regulation so as to more effectively prevent the magnetron from overheating. To provide a hole for the thermostat installation.

Claims (1)

Holes 110 to 180 are formed on the surface of the magnetron 100 so that the temperature controller 200 to prevent the temperature rise of the magnetron 100 is installed, but the first hole 110 and the second hole 120 are formed. ), The third hole 130, the fourth hole 140, the fifth hole 150, the sixth hole 160, the seventh hole 170, the eighth hole 180 arranged in a zigzag shape Holes for installing the temperature control device formed on the magnetron.