KR960004221B1 - Microwave oven - Google Patents

Abstract

The apparatus is characterized in that in case of using a motor(42) under load thereto, a shaft(45) for providing force to an axis rod(20) is normally or reversely rotated within a predetermined range without performing completely one rotation, and in that a support(30) is hung in the axis rod(20) swings like a swing by means of the shift within a predetermined angle.

Description

Driving device for food stand for microwave

1 is a perspective view illustrating an embodiment of the present invention.

Figure 2 is a front notch front view illustrating an embodiment of the present invention.

3 is a sectional view showing the principal parts of the driving means of the present invention.

Figure 4 is a side view illustrating the drive means of the present invention.

* Explanation of symbols for main parts of the drawings

10: cooking chamber 20: shaft

30: pedestal 40: driving means

41: case 41a: fixed pin

42: motor 43: reduction gear

44: main gear 45: shaft

45a: latch

The present invention relates to a driving device for a food stand installed in a cooking chamber of a microwave oven. In particular, the food stand is swinging from side to side within a predetermined angle range like a swing so that the high frequency radiated to the cooking chamber is evenly transmitted to the food. It relates to a driving device of the food support for microwave oven that can be cooked food effectively.

In general, one side of the microwave oven is provided with a magnetron, and the high frequency generated from the magnetron is configured to be irradiated into the cooking chamber through a waveguide, and the bottom of the cooking chamber is provided with a tray on which a cooking vessel is placed. The lower part of the tray is provided with a tray motor that can rotate the tray, and the cooking vessel placed thereon is rotated along the tray, so that the high frequency radiated to the cooking chamber is evenly transmitted to the food in the container and heated uniformly. It is configured to.

However, the tray motor installed in the lower part of the cavity main body to rotate the tray is configured to rotate only in one direction, while the food placed on the tray is continuously rotated in one direction while intensively drawing a circle in a certain direction when high frequency is irradiated to the food. There is a problem being investigated.

In addition, when the entire food has a square shape, such as laver and popcorn, there is a problem in that the edge of the food is caught on one side wall of the cooking chamber, and the rotation of the food is disturbed, particularly meat such as meat or fish. When thawing and cooking types, there is a closed end where oil generated during cooking is accumulated in a tray and is not discharged smoothly.

Therefore, when the high frequency heating distribution applied to the food as described above is not constant, a considerable problem occurs. For example, the area where food is concentrated is heated, and the food tends to be hard. On the contrary, the area where the high frequency irradiation is weak has a tendency for the food to become unripe and the food is not cooked evenly. I could not.

An object of the present invention is to provide a driving device of the food stand for the microwave oven that is evenly transmitted to the food placed in the cooking chamber, can effectively remove the oil to provide the best cooking.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, in which technical constitutions and effects are attached as preferred embodiments of the present invention.

The present invention is the shaft bar 20 which is arranged on both side walls of the cooking chamber 10 of the microwave; A pedestal 30 connected to both sides of the shaft rod 20; Is connected to one end of the shaft rod 20 is configured by the drive means 40 for performing the shaking of the shaft rod 20 and the pedestal (30).

That is, the shaft 20 is configured to be rotated forward and backward at a predetermined width and a predetermined angle by the driving means 40 connected to one end of the shaft 20 after being arranged on both side walls of the cooking chamber 10. Both sides of the 20 are connected to the pedestal 30 so that the pedestal 30 can be shaken with a predetermined width as the shaft rod 20 rotates forward and backward at a predetermined angle.

The driving means 40 for forward and reverse rotation of the shaft rod 20 at predetermined intervals is installed inside the case 41 as shown in FIGS. 3 and 4, and a drive gear 42a is provided on the main shaft. Motor 42 and; Reduction gears 43 engaged with the drive gear 42a to reduce the rotational speed; A main gear 44 meshed with the reduction gear 43 and having a shaft 45 formed at a center of the body extruded out of the case 41; A catching hole (45a) fixedly installed at an outer circumference of the shaft (45); In order to control the rotation of the locking hole (45a) is configured by the fixing pin (41a) installed on both sides of the case (41).

In addition, the motor 42 constituting the driving means 40 controls the rotational speed by receiving an input pulse signal and stops at a rotational angle proportional to the number of input pulses while periodically changing the negative electrode and the positive electrode when subjected to a load of a predetermined pressure. As a motor which rotates in the opposite direction, this motor 42 is a well-known motor which is generally well known.

In addition, in the present invention, when the forward and reverse motor 42 is rotated forward by receiving the drive signal of the forward rotation, the shaft 45 of the main gear 44 receives the decelerated power through the reduction gear 43, and gradually slowly forwards. When the motor 42 is rotated in response to the drive signal of the reverse rotation, the shaft 45 of the main gear 44 is gradually reversed through the reduction gear 43. Such driving means are already known. It may be referred to as known driving means.

The present invention is characterized in that both sides of the case 41 are provided with locking holes 45a protruding from the outer circumferential surface of the shaft 45 without completely rotating the shaft 45 of the main gear 44 for rotating the shaft 20. When the load is applied to the motor 42 while repeatedly being applied to the pair of fixing pins 41a protruding from the shaft 42, the shaft 45 is fixed within the range of both fixing pins 41a as the motor 42 repeats the forward and reverse rotation. This is because only the angle is rotated forward and backward, so that the pedestal 30 of the shaft 20 that is addressed to the shaft 45 can perform shaking at a predetermined angle.

That is, according to the present invention, when the motor 42 receives the forward signal and rotates forward, the shaft 45 of the main gear 44 gradually rotates forward clockwise through the reduction gear 43 that is the reduction gear. The locking hole 45a protruding from the outer circumferential surface thereof also rotates along the shaft 45 and is caught by the right fixing pin 41a (as shown in FIG. 4). In this way, the locking hole 45a is caught by the fixing pin 41a and no longer. If it does not rotate, the load of the predetermined pressure is immediately transmitted to the motor 42.

At this time, since the motor 42 is a motor that rotates in the opposite direction after stopping at a rotational angle proportional to the number of input pulses when the cathode and the anode change under a load of a predetermined pressure, the motor 42 stops rotation and then changes the pole. Receives a pulse signal input by the to rotate in the opposite direction this time, when the motor 42 is rotated in this way, the power of the reverse rotation decelerated through the reduction gear 43 is the shaft 45 of the main gear 44 In this case, the shaft 45 gradually rotates backward.

As described above, when the shaft 45 gradually rotates in reverse, and the catching hole 45a protruding from the outer circumferential surface thereof is caught by the left fixing pin 41a based on FIG. 4, the load of the predetermined pressure is again applied to the motor 42. As the cathode and anode change as they are applied, they stop at a rotation angle proportional to the number of input pulses, and then rotate again in the forward direction after receiving the pulse signal input by the changed pole.

Therefore, in the present invention, while the latching hole 45a protruding from the shaft 45 of the main gear 44 is repeatedly caught by the pair of fixing pins 41a protruding from the left and right sides, a load of a predetermined pressure is applied to the motor 42. When the shaft 45 of the motor 42 repeats the forward and reverse cycles periodically, the shaft rod 20 integrally formed with the shaft 45 is also able to repeat the forward and reverse cycles periodically.

And as described above, if the shaft 20 repeats the forward and reverse rotation at a predetermined angle, the pedestal 30 spoken to the shaft 20 is repeatedly shaken like a swing with a predetermined width. The food placed on the 30 is subjected to a high frequency radiated to the cooking chamber 10 in a state swinging from side to side within a predetermined angle so that the food can be cooked evenly and optimally cooked.

In the present invention, when the food is placed on the support 30 is formed into a mesh, even if a lot of oil is produced during cooking, such as meat or fish, the tray placed in the lower portion through the mesh 30 is separated or separate Since the oil spills smoothly, you can cook quite effectively.

In addition, when the left and right fixing pins 41a installed on the upper surface of the case 41 are formed to be movable by long holes, the interval between the left and right fixing pins 41a can be adjusted, and the main gear 44 It can be said that it is very desirable because the swing range of the pedestal 30 can be adjusted in various ways by variably controlling the rotation range of the shaft rod 20 to the shaft 44 of the).

According to the present invention as described above, the food is placed on the pedestal by placing the food on the pedestal that is addressed to the shaft, and then rotating the pedestal left and right within a predetermined angle range by the driving means for rotating the shaft. It is a very useful invention that the high frequency is evenly transmitted to the food as it receives the high frequency irradiated to the cooking chamber while swinging like a swing from side to side to cook the food evenly and perform the optimal cooking.

Claims (2)

On one side wall of the cooking chamber 10, a drive means 40 including a motor 42 capable of forward and reverse, a reduction gear 43 and a main gear 44 protruding out of the case 41 is provided. Then, in the driving device coupled to one end of the shaft 20 to be installed in the cooking chamber to the shaft 45, the motor 42 uses a known motor that is forward and reverse when the load is received, the shaft 20 A load is applied to the motor 42 so that the shaft 45 that transmits power to the shaft 45 is forward and reversed only within a predetermined angle range without being completely rotated, and the pedestal 30 is suspended from the shaft rod 20 by the pedestal 30. Drive of the food and beverage support for a microwave oven, characterized in that the swinging from side to side like a swing by the shaft 45 is reversed and reversed within a predetermined angle. A means for applying a load to the motor 42 for forward and reverse rotation of the shaft 45 at a predetermined angle, wherein the latch 45a is protruded from the outer circumferential surface of the shaft 45 and the shaft 45 ) Protrudes the fixing pin 41a at predetermined intervals on both sides of the locking hole 45a at a predetermined distance from the surface of the case 41 where the locking pin 41a controls the rotation of the locking hole 45a. A drive device for a food tray for a microwave oven, characterized in that a positive and reverse load is applied to the motor 42.