KR20000007213A - Lid structure of electric pressure rice cooker - Google Patents

Abstract

PURPOSE: A lid structure of an electric pressure rice cooker is provided to prevent an occurrence of condensed water at inner sides of pipes for a pressure weight valve and a solenoid valve. CONSTITUTION: The lid structure comprises an outer cover(201), an inner cover(202), an upper heat plate(203), a pipe for pressure weight valve(206), a pipe for solenoid valve(207), a pressure weight(208), a solenoid(209) and heat shielding materials(213, 213a). The outer cover(201) is rotary hinge engaged at rear upper end of a body of the rice cooker. The inner cover(202) is fixed at an inner side of the outer cover(201) and locked or unlocked at a front of the upper end of the body when the outer cover(201) rotates. The upper heat plate is fixed at the lower side of the inner cover(202) and generates a heat by an upper heat source material. The upper ends and the lower ends of the pipe for pressure weight valve(206) and the pipe for solenoid valve(207) are supported by the outer cover(201) and the upper heat plate, respectively. The pressure weight(208) is fitted on the upper end of the pipe for pressure weight valve(206) and open/close the pipe along the pressure. The solenoid(209) is installed on the pipe for solenoid valve(207), operated along a control signal of a controller and open/close the pipe for solenoid valve(207). The heat shielding materials(213, 213a) are fitted in proper positions of the pipe for pressure weight valve(206) and the pipe for solenoid valve(207) prevent cool heat transferring through the pipes(206, 207).

Description

Lid Structure of Electric Pressure Cooker

The present invention relates to a lid structure of an electric pressure cooker, and more particularly, a heat-blocking structure is added to the pressure valve valve pipe and the solenoid valve pipe, and the pressure valve valve pipe according to the temperature difference between the inside and the outside during warming. And condensed water is not generated in the inner portion of the oven, the lower end of the solenoid valve pipe.

In general, an electric pressure cooker is a device that cooks while using a heat source to obtain a heat source and maintaining the inside of the oven at a high pressure state by using the obtained heat source, the direct heating type electric pressure that pressure cooking is performed while the oven is directly heated. The rice cooker and the oven are divided into an induction heating type electric pressure cooker in which the pressure cooking is indirectly performed by induction heating, and the direct heating type electric pressure cooker or the induction heating type electric pressure cooker are both the main body 1 and the main body. The lid 2 is largely configured to be opened and closed at the top.

Then, the reference to the induction heating method electric pressure cooker as follows.

The main body 1 of the induction heating type electric pressure cooker is detachably coupled to the outer case 101, the support plate 102 supported on the lower part of the outer case, and the outer case 101 as shown in FIG. And a plurality of locking jaws 103a upwardly bent outwardly formed, and a lower heat source member 104 installed on an outer surface of the support plate 102 to generate an induced current while being supplied with power. The side heating plate 105 is installed between the outer case 101 and the support plate 102 in a state in which the oven 103 is wrapped, and the side heating plate 105 is supplied to the outer surface of the side heating plate to receive power. It consists of the side heat source member 106 to heat.

In addition, the lid 2 is rotated outwardly hinged to the rear of the outer case 101 constituting the main body 1, as shown in Figs. 1 and 2, and fixed to the inside of the out cover An inner cover 202 that is locked or unlocked in front of the outer case 101 of the main body 1 when the cover 201 is rotated, and an oven 103 fixed to the lower surface of the inner cover to form the main body 1. The upper hot plate 203 serving as the opening and closing plate of the upper and lower heat source member 204 is installed on the upper surface of the upper hot plate and is supplied with power to heat the upper hot plate 203, and the upper hot plate 203 A packing member 205 which is fitted around an edge of the lower surface of the bottom surface and seals a gap between the oven 103 of the main body 1 and the upper hot plate 203 of the lid 2 when the lid 2 is closed; The upper end is supported on the outer cover 201 and the lower pressure support valve pipe 206 and the sole is supported on the upper hot plate 203 A pipe 207 for the solenoid valve and a pressure weight 208 inserted into an upper end of the pressure valve valve 206 in an exposed state to open and close the pipeline of the pressure valve valve pipe according to the pressure degree; A solenoid 209 installed in the solenoid valve pipe 207 to open and close the conduit of the solenoid valve pipe according to a control signal of the controller, and rotated while being exposed to the upper surface of the outer cover 201. The oven 103 which is rotatably installed on the rocker handle 210 and the upper hot plate 203 so as to be rotatable and is rotated under the rotational force of the rocker handle 210 to constitute the main body 1. The locking jaw (103a) of the lock or is composed of a rocker 211 is released.

On the other hand, when comparing the configuration of the induction heating type electric pressure cooker described above with the configuration of the direct heating type electric pressure cooker, the configuration of the lid (2) is the same, only a part of the configuration of the main body (1), the induction heating method The other parts of the main body of the electric pressure cooker and the indirect heating method of the main body of the electric pressure cooker will be described as follows.

The main body 1 of the indirect heating type electric pressure cooker and the other induction heating type electric pressure cooker is an induction coil in which the lower heat source member 104 is supplied with power to generate an induction current, and generates heat by the generated induction current. The material of the oven 103 is a material capable of generating heat by induction current so that the cooking object can be cooked, and the side heat source member 106 is configured to heat the oven 103 through the side heat plate 105.

In addition, the main body 1 of the induction heating type electric pressure cooker and other indirect heating type electric pressure cooker is a heater coil in which the lower heat source member 104 is supplied with power and generates heat, and is heated directly by the generated heat. The material of the oven 103 is a material with good thermal conductivity so that it can be cooked, and the side heat source member 106 directly heats the oven 103.

Hereinafter, a series of processes of cooking the cooked food using an induction heating type electric pressure cooker and warming the cooked rice will be described below.

In the state in which the lid 2 is opened and the body 1 is opened, the oven 103 is detachably coupled into the outer case 101 constituting the body, and then the cooking objects are stored in the oven. Afterwards, the oven 103 containing the cooking objects is combined into the outer case 101 again.

After the lid 2 is rotated again, the lid rotates while receiving the elasticity of the spring 212 installed in the hinge portion based on the hinge portion, and then the inside of the outer cover 201 of the lid 2 is completed. The front end of the fixed inner cover 202 is locked to the outer case 101 of the main body 1 by a separate means.

Subsequently, when holding the rocker handle 210 installed while being exposed to the upper surface of the outer cover 201 of the lid 2 and rotating in one direction (locking direction), the circumferential surface of the upper hot plate 203 is wrapped. As the rocker 211 is rotatably installed to be caught by the upper locking jaw 103a of the oven 103 while being rotated under the rotational force of the rocker handle 210, the upper part serving as an opening / closing plate of the oven 103. The hot plate 203 is also locked to the oven 103. In this case, the packing member 205 fitted around the outer edge of the lower surface of the upper hot plate 203 is in contact with the upper inner circumference of the top of the oven 103. The gap between the upper hot plate 203 and the oven 103 is completely sealed, thereby maintaining the vacuum inside the oven.

Opening and closing of the lid 2 is possible because the outer cover 201 constituting the lid is hinged rotatably to the outer case 101 constituting the main body 1.

In this state, when the user selects the cooking mode, the lower heat source member 104 installed on the outer surface of the support plate 102 constituting the main body 1 receives power to generate an induced current, and the side heating plate 105 The upper side heat source member 106 installed on the outer side of the upper heat source member 204 installed on the upper surface of the upper heat plate 203 constituting the lid 2 while heating the side heat plate () by operating the power supply. Since the oven 103 is heated and heated because the upper heating plate 203 is operated by being supplied with electric power, the inside of the oven is cooked as the cookware is boiled as high heat and pressure are present, and the oven 103 The steam is generated inside the oven, and the steam is pressurized to continue to be discharged to the outside through the pipes of the pressure valve valve pipe 206 and the solenoid valve pipe 207 of the lid 2. When the pressure reaches a certain pressure (pressure enough to beat the weight of the pressure weight 208 fitted on the upper end of the pressure valve valve pipe 206), the pressure weight 208 by the discharge pressure of the steam according to the remaining pressure As the gas flows to open the conduit of the pressure valve valve pipe 206, the steam inside the oven 103 is discharged to the outside through the pressure valve valve pipe 206, so that the pressure inside the oven 103 at the time of cooking As it does not rise above a certain pressure, it is understood that safety accidents such as the oven may explode due to excessive pressure rise do not occur.

After the cooking is completed by the above process, the solenoid 209 installed in the solenoid valve pipe 207 operates under the control signal of the controller to open the conduit of the solenoid valve pipe 207 for a predetermined time. 103, the steam according to the pressure inside is discharged to the outside mostly through the solenoid valve pipe 207, so that the pressure inside the oven 103 is maintained to be almost the same as the atmospheric pressure, which is the user in the cooking state is completed When the lid 2 is opened to eat cooked rice, the lid is smoothly opened and the high heat steam is not temporarily discharged at the same time during the opening process.

On the other hand, after cooking is completed, the insulation is automatically performed. In this case, after the cooking is completed, the temperature of the oven 103 is sensed by a separate temperature sensor (not shown). Each of the heat source members 104, 106 and 204 receives the control signal of the controller and simultaneously operates and heats and heats the oven 103 until the temperature of the 103 rises to an appropriate heat retention temperature. Bob's temperature keeps the red temperature.

When the insulation is performed as described above, the solenoid 209 installed in the solenoid valve pipe 207 has a predetermined time period and is repeatedly operated for a predetermined time, thereby opening the conduit of the solenoid valve pipe 207. Steam inside the oven 103 is discharged to the outside through the solenoid valve pipe 207, which is changed to a vacuum state when the pressure inside the oven 103 is increased during the warming process so as to prevent this in advance. Is in.

Then, the user looks at the process of opening the lid (2) to eat cooked rice as follows.

First hold the rocker handle 210 rotatably installed in the state exposed to the outside on the upper surface of the outer cover 201 constituting the lid 2 and rotated in the other one direction (locking release direction) the upper hot plate 203 The locker 211, which is rotatably installed to cover the circumferential surface of the oven, rotates in response to the rotational force of the rocker handle 210 to release the engagement with the upper locking jaw 103a of the oven 103. The upper hot plate 203 serving as the opening / closing plate of the 103 is released from the oven 103, and in this state, when the button 107 installed on the outer case 101 of the main body 1 is pressed, by a separate means. Since the inner cover 202 of the lid 2 that is locked to the outer case 101 is also unlocked, the lid 2 is completely opened based on the hinge part by receiving the spring 212 restoring force of the hinge part.

However, in the conventional lid structure of the electric pressure cooker as described above, the pressure inside the oven according to the flow of pressure in the cooker to discharge the steam in the oven so that the pressure inside the oven does not rise above a certain pressure and The solenoid valve pipe, which serves to completely discharge the steam inside the oven according to the operation of the solenoid to prevent pressure from being present inside the oven, is not equipped with a heat shield structure. Due to the temperature difference between the inside and the oven, the cold heat of the outside air is easily transmitted to the inner portion of the oven through the pressure valve valve and the solenoid valve pipe, and thus the inner part of the oven, which is the lower end of the pressure valve pipe and the solenoid valve pipe. Heat exchange in the The number is generated, and wherein the resulting condensed water so as to fall in the direction of gravity by its own weight inside the oven is a bapjung bleaching occurs while immersed in the rice in the bottom of the condensate generated in the oven had a poor thermal insulation quality of the rice problem.

In addition, since there is no heat transfer structure that allows the pressure valve valve and the solenoid valve pipe to transmit heat to each other, the solenoid installed in the solenoid valve pipe is operated during warming, and the steam inside the oven is discharged through the solenoid valve pipe. Even though the solenoid valve pipe is heated in this process, this heat is not transferred to the pressure valve valve pipe. Accordingly, a greater amount of condensate is generated in the inner portion of the oven, which is the lower end of the pressure valve valve pipe. Accelerated.

The present invention has been made in order to solve the above-described problems, the heat of the pressure valve valve and the solenoid valve pipe in addition to the appropriate location of the pressure valve valve and the solenoid valve pipe heat, respectively By adding a heat transfer structure to be transmitted to each other to ensure that the cold heat of the outside air is transferred to the inner portion of the oven through the pressure valve valve pipe and solenoid valve pipe at the time of warming, so that the pressure valve valve pipe and solenoid valve for The purpose is to prevent condensate from forming inside the oven in the pipe.

According to an aspect of the present invention for achieving the above object, one end is rotatably hinged to the rear of the upper end of the main body, and fixed to the inside of the outer cover to lock or unlock the front of the upper end of the body when the outer cover is rotated The inner cover which is fixed to the lower surface of the inner cover, the upper hot plate to generate heat by the upper heat source member, the upper end is supported on the out cover, the lower end is supported on the upper hot plate pipe and solenoid valve pipe and The pressure weight is inserted into the upper end of the pressure valve valve pipe in a state exposed to the outside and opens and closes the pipeline of the pressure valve valve pipe according to the pressure level, and is installed in the solenoid valve pipe and operated according to the control signal of the controller. In the configuration of the solenoid for opening and closing the pipe of the solenoid valve pipe, And a heat shield member inserted into the air pressure valve pipe and the solenoid valve pipe to respectively block heat transmitted from the cold air to the inner portion of the oven through the pressure valve valve and the solenoid valve pipe. The lid structure of the electric pressure cooker is provided.

1 is a longitudinal sectional view showing an electric pressure cooker having a conventional lid

FIG. 2 is a sectional view along the line A-A in FIG. 1

3 is a sectional view showing the main part of the lid of the present invention an electric pressure cooker

Explanation of symbols for main parts of the drawings

1. Body 2. Lid

103. Oven 201. Out cover

202. Inner Cover 203. Upper Hot Plate

204. Upper heat source member 206. Pipe for pressure valve

207. Pipes for solenoid valves 208. Pressure weights

209. Solenoids 213,213a. Thermal barrier member

214. Heat transfer member

Hereinafter, the present invention will be described in more detail with reference to the accompanying FIG. 3.

Attached Figure 3 is a sectional view showing the main part of the lid of the electric pressure cooker of the present invention, the description of the same configuration as the configuration of the conventional lid described in the configuration of the lid of the present invention will be omitted, except that the name of the relevant components and the corresponding symbols It will be given in the same manner as in the prior art.

Hereinafter, the main structure of the present invention will be described in contact with the upper surface of the upper hot plate 203 supporting portion of the pressure valve valve pipe 206 and the upper hot plate 203 supporting portion of the solenoid valve pipe 207. When the heat of the outside air is inserted into the oven 103, which is the lower end, through the pressure valve valve pipe 206 and the solenoid valve pipe 207 by inserting the heat shield members 213 and 213a, respectively. One end of the heat transfer member 214 in a state that the heat is blocked by each of the heat blocking member (213) (213a), and in contact with the upper surface of the heat blocking member 213 to the pressure valve valve pipe 206. In addition, the other end of the heat transfer member 214 is inserted into the solenoid valve pipe 207 in contact with the upper surface of the heat shield member 213a in the solenoid valve pipe 207 and the solenoid valve pipe. Heat of 207 causes the heat transfer member 213 to Solution The pressure weight so that the temperature and the temperature of the solenoid valve the pipe 207 for the valve pipe (206) for the same to be delivered as one another.

In the above configuration, the thermal barrier members 213 and 213a may be made of any material having a heat insulating effect such as silicon, nonwoven fabric, and urethane, and the heat transfer member 214 may be made of any conductive metal such as an aluminum plate or a copper plate.

According to the present invention configured as described above, in the process of keeping warm after completion of cooking, the temperature of the outside air is significantly lower than the temperature inside the oven 103 constituting the main body 1, so in this case, the pressure valve valve pipe 206 and the solenoid As the upper end of the valve pipe 207 is located outside and the lower end is located inside, the cold heat of the outside air is lowered through the pressure valve valve 206 and the solenoid valve pipe 207. In this case, the upper hot plate 203 supporting portion of the pressure weight valve pipe 206 and the upper hot plate 203 supporting portion of the solenoid valve pipe 207 are in contact with the upper surface of the upper hot plate. The heat shield members 213 and 213a of the insulating material are inserted into the lower state through the pressure valve valve pipe 206 and the solenoid valve pipe 207. Most of the heat transmitted to the inside of the oven 103 is blocked by the heat shield members 213 and 213a, and thus the oven 103 which is the lower end of the pressure valve valve pipe 206 and the solenoid valve pipe 207. Heat exchange does not occur in the inner part.

In the above, the heat blocking members 213 and 213a are fitted in contact with the upper hot plate 203 supporting portion of the pressure valve valve pipe 206 and the upper hot plate 203 supporting portion of the solenoid valve pipe 207. The pressure blocking member 213 and 213a block the external cold heat transmitted to the inner portion of the oven 103 through the pressure valve valve pipe 206 and the solenoid valve pipe 207 to the inside of the pressure gauge. This is to seal the gap between the valve pipe 206 and the upper hot plate 203 and the gap between the solenoid valve pipe 207 and the upper hot plate 203 to prevent pressure leakage.

In addition, the heat shield members 213 and 213a may have a top surface of the upper hot plate among the upper hot plate 203 supporting portion of the pressure valve valve 206 and the upper hot plate 203 supporting portion of the solenoid valve pipe 207. It is inserted in contact with the state, so that cold heat of the outside air is blocked before being delivered to the lower end of the pressure valve valve pipe 206 and the solenoid valve pipe 207 through the heat blocking member 213 (213a). The heat shield member is to maximize the blocking effect of the cold heat, if the heat blocking member is the upper portion of the upper hot plate 203 support portion of the pressure valve valve pipe 206 and the upper hot plate 203 support portion of the solenoid valve pipe 207 If it is fitted in contact with the lower surface of the hot plate, the cold heat of the outside air is mostly transmitted to the inside of the oven 103, which is one end of the pressure valve valve pipe 206 and the solenoid valve pipe 207. In this case, it is understood that the effect of blocking heat through the heat shield members 213 and 213a is very small.

On the other hand, as described above, the solenoid 209 installed in the solenoid valve pipe 207, as described above, opens the conduit of the solenoid valve pipe 207 while repeatedly operated for a predetermined time period. In the process of discharging the steam in the oven 103 to the outside through the solenoid valve pipe 207, the temperature is increased by the heat of the steam discharged from the solenoid valve pipe, the pressure weight valve pipe 206 Since one end of the heat transfer member 214 is fitted, and the other end of the heat transfer member 214 is fitted in the solenoid valve pipe 207, the heat of the solenoid valve pipe 207 passes through the heat transfer member 214. As it is delivered to the pipe 206, the temperature of the solenoid valve pipe 207 and the pressure valve pipe 206 The same is raised in the elevated state, and thus the cold heat transmitted to the lower end of the solenoid valve pipe as well as the cold heat transmitted to the lower end of the pressure weight valve pipe 206 is offset by the high temperature.

Therefore, in the present invention, when the insulation is performed after cooking is completed, the cold heat of the outside air is blocked in the process of being transferred to the inner portion of the oven, which is the lower end, through the pressure valve valve pipe and the solenoid valve pipe, and thus, is offset. As condensate is not generated inside the oven, which is the lower end of the solenoid valve pipe, the whitening phenomenon caused by the rice inside the oven is submerged in the condensate is prevented from occurring. The effect is to remain.

Claims (6)

An outer cover whose one end is pivotally hinged to the upper rear of the main body, an inner cover which is fixed inside the outer cover and locked or unlocked to the upper front of the main body when the outer cover is rotated, and a lower surface of the inner cover An upper hot plate fixed to heat by the upper heat source member, a pipe for solenoid valves and a pipe for solenoid valves whose upper end is supported by the outer cover and the lower part is supported by the upper hot plate, and the pressure valve valve is exposed to the outside. A pressure weight that is inserted into an upper end of the pressure gauge valve to open and close the pipeline of the pressure valve valve and the solenoid valve is installed in the solenoid valve pipe and operated according to a control signal of the controller to open and close the pipeline of the solenoid valve pipe. In the configuration, the pipe for the pressure valve and the solenoid valve It is inserted into each of the places where the cold heat of the outside air is passed through the pressure valve valve and solenoid valve pipe is further transmitted to the inner portion of the lower portion of the oven further comprises a heat shield member for blocking the transmitted cold heat Cover structure of pressure cooker. The method of claim 1, A lid structure of an electric pressure cooker, characterized in that the heat blocking member is fitted in contact with the upper hot plate support portion of the pressure valve valve pipe and the upper hot plate support portion of the solenoid valve pipe. The method of claim 2, The heat shield member is a lid structure of the electric pressure cooker, characterized in that the upper hot plate support portion of the pressure valve valve pipe and the sole portion of the upper hot plate support portion of the pipe for solenoid valve is fitted in contact with the upper surface of the upper hot plate. The method according to any one of claims 1 to 3, The heat shield member is a lid structure of the electric pressure cooker, characterized in that any one of silicon, non-woven fabric, urethane. The method of claim 1, The other end is fitted to the pressure valve valve pipe and the other end is inserted into the solenoid valve pipe, further comprising a heat transfer member for transferring the heat of the pressure valve valve pipe and the heat of the solenoid valve pipe to each other. The lid structure of the rice cooker. The method of claim 5, Heat transfer member is a lid structure of the electric pressure cooker, characterized in that any one of aluminum plate, copper plate.