CN110626577A - Food dehydrator - Google Patents

Abstract

The present invention relates to a food dehydrator capable of performing vacuum packaging by supplying vacuum pressure to a plastic bag and a vacuum inducing device by connecting a vacuum pressure connection hose to a vacuum pressure relay socket. The invention comprises the following steps: the air dryer includes a support body configured with an operation panel installed at an outer side, a heating device including a heating part for heating and an air blowing part for blowing air, a lower case protecting a heating unit embedded in the support body, an inlet through which air is introduced to be discharged through the heating device, a vacuum device for discharging air absorbed from a vacuum bag, a vacuum container, and a vacuum packing unit through the heating device, a drying rack for drying food using heat supply, a drying rack cover for causing heat to be focused inside the drying rack, an outlet for discharging heat to the outside, a pressure sensor installed in the vacuum device, a control part for determining whether the pressure sensor is operated by receiving a signal of the sensor, and an automatic error signal output part for outputting a warning signal.

Description

Food dehydrator

Technical Field

The present invention relates to a food dryer, and more particularly, to a vacuum pressure providing device for providing vacuum pressure inside a food dryer and mounting a vacuum pressure relay socket on an operation panel of the food dryer to perform a function of the food dryer. The present invention relates to a food dryer, characterized in that vacuum packing is provided by connecting a vacuum pressure connection hose to a vacuum relay socket on an operation panel to supply vacuum pressure to a plastic bag and a vacuum inducing device.

Background

The conventional vacuum packing paper is korean patent laid-open publication No. 92-0700998, and the "apparatus for vacuum sealing plastic bags" of the embossed vacuum packing paper formed in the title of the present invention is shown in fig. 1. The vacuum packing paper 21 is formed with embossments 25 on the inner surface, and air discharge passages are formed by the embossments 25 at the time of vacuum packing, and vacuum and heat are applied by the vacuum packing machine 20 shown in fig. 1.

Specifically, the conventional vacuum packing machine 20 has a base 32, a cover 33, a vacuum chamber 34 formed therebetween, a vacuum pump (not shown), and a vacuum packing paper (which includes a heat sealing device 50 for heat sealing an opening of the 21) for evacuating the vacuum chamber 34.

When the vacuum packing paper 21 is vacuum packed by a conventional cavity type vacuum packing machine, a packing material such as food is stored in a storage space inside the vacuum packing paper 21, and an opening portion of the vacuum packing paper 21 is vacuum-pumped. After being placed in the chamber 34, the lid 33 is lowered over the base 32, thereby sealing the vacuum wrapper and the vacuum chamber. Thereafter, when a predetermined switch is operated, the vacuum pump is operated, and the vacuum chamber 34 is evacuated in accordance with the operation of the vacuum pump, whereby the inside of the vacuum packing paper 21 is also evacuated, and the heat sealing means (shown in fig. 2) heat-seals the opening portion of the vacuum packing paper 21. At this time, since the emboss 25 is formed on one side of the inner side of the vacuum packing paper 21, the air inside the vacuum packing paper 21 is well sucked by the emboss 25.

In addition, the conventional chamber vacuum packing machine is disclosed in Korean Utility model publication No.20-0235323, and there is the name 'vacuum and adhesive packing machine' of the present invention.

On the other hand, in addition to the cavity type vacuum packing machine as shown in fig. 2, there is a nozzle type vacuum packing machine, which is disclosed in korean utility model publication No.20-0165428 as a name of 'vacuum packing machine', as shown in fig. 3. In the vacuum packing machine shown in fig. 3, an air inlet 513 connected to a vacuum pump is inserted into an opening of the vacuum packing paper to vacuum-suck the vacuum packing paper by the operation of the vacuum pump. In this vacuum packing machine, contents are put into a vacuum packing paper, an opening of the vacuum packing paper is inserted into the air inlet 513, the cover 520 is closed, and a vacuum pump installed therein is operated to take out air in the vacuum packing paper to form a vacuum state. Vacuum packing is performed by supplying power to the coupling heating wire 512 to adhere the opening of the vacuum packing paper.

A conventional vacuum packing machine is a one-piece body including all components, including a vacuum chamber or nozzle and a vacuum pump, for electronically controlling an electronic circuit of the vacuum packing machine. Therefore, its disposal is inconvenient, and the vacuum pump or the electronic circuit must not come into contact with water, so that cleaning is inconvenient. In addition, since a relatively large space is required as a use space, there are many inconveniences in use due to insufficient use of the space used on a complicated dining table or the like.

On the other hand, patent No. 10-0584855 is directed to solving this problem, and the body includes a vacuum pump as shown in fig. 4 and 5; an air hose; which is formed separately from the main body, an air hose connected to the vacuum pump and the main body, the vacuum sealing device is used for thermally sealing the vacuum packaging paper when power is supplied and comprises a vacuum sealing device, a vacuum sealing device and an upper shell; a lower case; the upper and lower cases are formed to contact each other, and an air flow passage formed to be connected to a vacuum pump and an air hose to one side of the air flow passage, an opening of the vacuum packing paper being exposed to the inside and the other end of the vacuum packing paper being a vacuum chamber located outside; the power supply located in front of the vacuum chamber is made of a heat sealing means for sealing the vacuum packing paper, and the vacuum chamber is characterized in that the storage chamber is detachably installed in the lower case.

However, the above-described device is only a mobile vacuum pressure providing device, it is difficult to secure a space for properly releasing the vacuum pressure, and there is a problem in that it is difficult to perform one or more functions.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems,

the vacuum packaging machine is combined with a food dryer to realize the function of food drying, and vacuum pressure is provided according to requirements, so that the vacuum packaging machine can realize the function of vacuum packaging, and two functions of one machine are completely realized.

In addition, noise caused by the use of the vacuum pump is reduced by effectively distributing air generated using the vacuum pump, and it is ensured that the flow of air is minimized to minimize inconvenience in use.

As a means for achieving the above-mentioned object,

the present invention is manufactured by forming a space portion of an open rectangular parallelepiped shape at the inner side, including a rectangular panel shape for mounting various components and a support body made by mounting an operation panel at the outside. The heating device is arranged at the upper part and the lower part of the supporting body and comprises a heating part for heating and a blowing part for blowing; a lower case for protecting a heating device mounted on a support body by closing and wrapping a lower portion of the support body; an inlet formed of a plurality of air holes on one side of the lower case, configured to discharge external air through the heating device; which is installed at a lower portion of the support body and includes necessary components in vacuum and forms vacuum pressure to supply the vacuum pressure to the vacuum bag, a vacuum container, a vacuum packing device for packing food, a vacuum bag, a vacuum container, a vacuum packing vacuum device for discharging sucked air through the heating device; a drying rack is installed on the upper part of a support main body, forms a space for embedding food to be dried, and dries the food by heat provided by a heating device; a cover for closing the top of the drying rack to temporarily prevent heat supplied from the heating means from escaping to the outside, thereby concentrating the heat in the drying deck; a discharge port disposed at the center of the drying cover and configured to discharge the plurality of holes to the outside through the drying rack; the pressure sensor is arranged in the vacuum device; a control unit receiving a signal of the pressure sensor and determining whether the pressure sensor is operated; characterized in that it comprises an error signal automatic output unit for outputting an alarm signal when a signal of the pressure sensor is not inputted due to the determination of the controller.

In addition, a heating device, a blower motor and a blower fan are positioned at the lower part of the support main body to suck external air by the rotating force of the motor and discharge it into the dryer; characterized in that it comprises a heater cover for protecting the heater by the outside of the sleeve heater.

In addition, the vacuum means is a vacuum pump installed at a lower end of the supporting body, forming a space therein to suck in external air, a vacuum motor connected to the vacuum pump to supply vacuum pressure to the vacuum pump to suck in power of the external air to supply power for drawing air from the packing machine, a connection hose extending from the vacuum pump to relay the vacuum pressure, installed to be exposed to one side of the supporting body, an inner side connected to the connection hose, provided with the vacuum pressure, and an outer side characterized in that it includes a vacuum socket having a concave portion or a protrusion such that the external vacuum hose is inserted and connected.

In addition, the interior of the support body is characterized by an air filter for removing external dust and contaminants further installed.

In addition, the error signal automatic output unit 1000 includes a power supply unit 1101 for applying a power signal by its own power supply; an error signal output unit 1102 for receiving a signal from the controller to switch the power supply circuit; an oscillation transformer 1103 for outputting alternating current power supplied when the power supply unit is turned on; a relay operation switching unit 1108 connected to an output terminal of the oscillation transformer 1103 and turned on by a power supply; an error signal output power switch sw2 for supplying power to the error signal output control unit 1140 while the iron piece is pulled by the relay switch 1107 to generate an error signal to be displayed; a circuit operation iron 1131 for contacting a first circuit connection switch to turn on a power holding switch is designed to operate together with the circuit operation iron 1131, and when the circuit operation iron 1131 is turned on, an error signal output control unit power connection iron causes an alarm device operation (1132) by connecting a power supply to the error signal output control unit, and in addition, an error signal automatic output unit 1000 is installed between the first circuit connection switch and the circuit operation iron to keep the first circuit connection switch and the circuit operation iron in an off state at all times when not operated. A spring 1133 installed at one end of the first circuit connection switch, and when the relay switch is operated to pull the circuit switch, if the first circuit connection switch is switched, a circuit-operated iron piece is installed to turn on the power switch unit even if the relay switch is stopped. A permanent magnet 1134 for continuing this state; it is connected to a ferrous member for circuit operation and a ferrous signal for connecting an error signal output control unit, and when a user operates to stop the alarm signal operation, the error signal display unit is operated by turning off the ferrous member for operating the circuit and the ferrous signal for the error signal output control unit, characterized in that it further comprises a manually operated switch (1135) for causing the stop of no longer outputting the alarm signal.

As described above, the present invention performs the function of drying food by grafting the vacuum packing machine to the food dryer and provides a necessary vacuum pressure to perform the function of vacuum packing, thereby preventing the food from being deteriorated even during long-term storage. In addition, the food stored through the vacuum process can be completely prevented from absorbing moisture or being contaminated again, so that the food storage period can be further extended, and the efficiency of the product and the convenience of the user can be maximized. This will produce a useful effect.

In addition, noise caused by the use of the vacuum pump is reduced by effectively distributing the air generated using the vacuum pump, and the air flow is natural to minimize inconvenience in use.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for assisting the understanding of the present application, and are not particularly limited to the shapes, the proportional sizes, and the like of the respective members in the present application. Those skilled in the art, having the benefit of the teachings of this application, may select various possible shapes and proportional sizes to implement the present application, depending on the particular situation. In the drawings:

fig. 1 to 5 are conceptual views of a conventional vacuum packing machine;

FIG. 6 is a front view of the food dryer of the present invention;

FIG. 7 is a cross-sectional view of the food dryer of the present invention;

FIG. 8 is an exploded perspective view of the food dryer of the present invention;

FIG. 9 is a perspective view of the vacuum of the food dryer of the present invention;

FIG. 10 is a vacuum operated view of the zipper pack as an operational state view of the present invention;

FIG. 11 is a vacuum operating diagram of the vacuum vessel as an operating state diagram of the present invention;

FIG. 12 is an operational state diagram of the vacuum packing device of the present invention;

FIG. 13 is a perspective view showing a state where the vacuum packing apparatus is attached as an operation state diagram of the present invention;

FIG. 14 is a block circuit diagram of an alarm concept using the pressure sensor of the present invention;

fig. 15 is a circuit diagram of an error signal automatic output unit according to the present invention;

fig. 16 is a detailed view of fig. 15.

In the figure: 10 supports, 11 rectangular panels, 12 operating panels, 20 heating devices, 21 blowing motors, 22 blowing fans, 23 heaters, 24 heater covers, 30 lower housings, 40 inlet ports, 50 vacuum devices, 51 vacuum pumps, 52 vacuum motors, 53 connecting hoses, 54 vacuum sockets, 60 drying racks, 70 drying cover covers, 80 outlets, 90 filters, 100 vacuum hoses, 110 vacuum zipper bags, 120 vacuum containers, 130 vacuum packaging devices, 1000 error signal automatic output units.

Detailed Description

Hereinafter, the operational principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. However, the drawings shown below and the following description are preferred methods among various methods for effectively explaining the features of the present invention, and the present invention is not limited to the drawings and the description below.

In addition, in the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, and may vary according to intentions or customs of a user or operator. Therefore, it should be defined based on the entire contents of the present invention.

In addition, preferred embodiments of the present invention to be performed below have been provided in each system function configuration to effectively describe technical components constituting the present invention or system functions commonly provided in the technical field to which the present invention belongs. This configuration will be omitted and mainly described as a functional configuration additionally provided by the present invention.

The functions of the components already used in the prior art, in an omitted functional configuration not shown below, and in an omitted configuration as described above, will be readily understood by those skilled in the art to which the present invention pertains. The relationship between the added elements and components of the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify the terms so that those skilled in the art can clearly understand the technical features of the present invention to be effectively understood, but the present invention is by no means limited.

As a result, the technical spirit of the present invention is determined by the claims, and the following embodiment is a means for effectively explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains.

The support body 10 includes a rectangular panel 11 for mounting various components, and is formed by forming a space portion inside a rectangular shape having an open bottom and mounting an operation panel 12 outside. And is completed.

The heating device 20 is installed at upper and lower portions of the support body, and includes a heating part for heating and a blowing part for blowing air.

The lower case 30 serves to protect the heating device 20 mounted on the support body by closing and closing the lower portion of the support body.

The inlet 40 is formed of a plurality of air holes on one side of the lower case and guides the external air through the heating device 20.

The vacuum apparatus 50 is installed at a lower portion of the support body 10 and includes necessary components in vacuum and forms vacuum pressure to supply the vacuum pressure to the vacuum bag, and the vacuum container, the vacuum packing apparatus for packing food items, exhausts air sucked from the vacuum bag, the vacuum container and the vacuum packing apparatus through the heating apparatus 20.

The drying rack 60 is installed at an upper portion of the support body 10 to form a space in which the food to be dried is inserted, and dries the food using heat supplied from the heating device 20.

The drying cover 70 closes the uppermost portion of the drying rack 60 to temporarily prevent heat supplied from the heating device 20 from escaping to the outside, so that the heat is concentrated in the drying rack.

An outlet 80 is centrally located in the drying rack cover 70 for discharging heat through the drying rack to the exterior of the drying rack consisting of a plurality of holes.

The filter 90 is installed at the lower end of the support body 10 and between the suction port 40 and the heating device 20, and filters a contaminated part when air is supplied from the suction port.

The heating device 20 will be described in more detail below.

The heating device 20 of the present invention includes a blower motor 21, a blower 22, a heater 23, and a heater cover 24, wherein the blower motor 21 and a blower fan support body. It is located at the lower part of (10) for sucking in the outside air by the rotating force of the motor and sending it out to the drying table.

In addition, a heater 23 is located above the main body for heating and discharging air by replacing electric energy with thermal energy by an external power source.

In addition, the heater cover 24 serves to protect the heater by the outside of the sleeve heater 23.

The vacuum device 50 will be described in more detail below.

The vacuum apparatus 50 is composed of a vacuum pump 51, a vacuum motor 52, a connection hose 53 and a vacuum socket 54, and the vacuum pump 51 is installed at the lower end of the main body. It is formed of a piston and a cylinder formed with an inlet port for sucking external air, and an exhaust port for exhausting intake air to open and close each of the intake and exhaust valves by operation of the piston to generate vacuum pressure.

A vacuum motor 52 is connected to the vacuum pump 51 to provide power for operating the piston of the vacuum pump.

In addition, a connection hose 53 extends from the vacuum pump 51 for relaying the vacuum pressure.

In addition, a vacuum socket 54 is installed to be exposed to one side of the support body 10, the inner side is connected to the connection hose 53 to be provided with vacuum pressure, and the outer side is a structure in which the outer vacuum hose 100 is inserted and connected, which has a concave portion or a protrusion.

The following is the assembly method of the present invention.

The present invention basically supports the main body 10, the heating device 20, the lower housing 30, the suction inlet 40, the vacuum device 50, the drying rack 60, the drying rack cover 70), the discharge outlet 80 and the filter 90, formed to have a space portion in the support body 10, and the operation panel 12 is installed at the outside.

The heating device 20 is assembled by the upper and lower portions of the rectangular panel 11 of the support body 10, and the blower motor 21 constituting the heating device 20 is located at the lower portion of the rectangular panel (11). The heater 23 and the heater cover 24 are preferably mounted on the upper portion of the rectangular panel 11.

In addition, the vacuum apparatus 50 is also connected to a lower portion of the support body 10, and a vacuum pump 51 and a vacuum motor 52 constituting the vacuum apparatus 50 are the support body 10. A vacuum socket 54 connected to a lower portion of the rectangular plate 11 of the base plate 11 and constituting the vacuum device 50 is installed to be connected to the operation plate 12, and a vacuum pump 51 and the vacuum socket 54 are installed. ) Is made by connecting a hose (53).

Then, an air filter 90 for removing external dust and contaminants is installed on the inner end of the support body 10.

See the following operation of the invention.

First, a user dries food in a food dryer having a vacuum packing function. The user can operate the operation panel 12 to set an appropriate temperature and time to dry the food. Accordingly, by the operation of the blower motor 21 as the heating means, fresh air is sucked from the outside through the suction port 40 and the air filter 90, heated by the heat of the heater 23, and the heated hot air is supplied to the drying deck. The moisture contained in the food stored in the drying rack 60 is evaporated and dried.

In addition, the damp heat generated by the moisture absorbed by the drying rack 60 is discharged to the outside through the discharge port 80, and the processes of entering, heating and discharging the air are continuously performed for a predetermined time.

Then, the user checks the operation to provide vacuum by operating the vacuum function to vacuum-clean the contents as follows.

When the user operates the vacuum mode using the operation panel 12, the vacuum motor 52 is operated, and vacuum pressure is generated in the vacuum pump 51 according to the operations of the vacuum motor 52 and the vacuum pump (51 provides vacuum pressure to the connection hose 53 and the connected vacuum socket 54).

Then, vacuum pressure is supplied to the vacuum hose 100 connected to the vacuum socket 54 to evacuate the zipper pack 110 or the vacuum packing device 130 or the vacuum container 120 connected to the vacuum hose 100.

The air sucked from the zipper pack 110, the vacuum packing device 130 or the vacuum container 120 by supplying the vacuum pressure is used to blow the blower motor 21 and the drying rack 60 into the support body 10. Through which it finally passes through the outlet.

Accordingly, when the vacuum motor 52 is operated, air is sucked into the support main 10, and the sucked air is supplied to the blower motor 21 to be supplied to the drying rack 60 at this time, the heater 23 is operated, the air is heated by the heater 23, and the heated air is supplied to the drying rack 60, thereby utilizing the air collected by the vacuum motor 52 in the drying rack 60 to maximize the use efficiency of the apparatus.

That is, the conventional vacuum packing machine provides a vacuum pressure, and the discharged air is meaningfully discharged back into the air. It is supplied to the dryer, at which time, by being supplied to the drying deck while being heated by the heater, a food drying function can be simultaneously performed.

On the other hand, if the pressure sensor does not operate through continuous alarming to continue to repair the failure, the present invention further configures the apparatus to check the pressure of the vacuum pump using the pressure sensor 200.

In other words, if air is sucked in during the operation of the vacuum pump 51, the pressure sensor 200 is operated to stop the operation of the vacuum pump. If the pressure sensor is not operating, the controller 300 is damaged due to the vacuum device being broken. The pressure sensor at) is checked to alert an error signal through the automatic output unit 1000 to cause an error factor for rapid healing.

The error signal automatic output unit 1000 includes a circuit power source 1101, an error signal output unit 1102, an oscillation transformer 1103, a relay operation switching unit 1108, a relay switch 1107, and a first circuit connection switch sw1, a communication terminal power switch sw2, and a power holding switch 1118.

That is, a power supply unit 1101 for applying a power signal by its own power supply;

an alarm signal output unit 1102 for switching the power supply circuit when an alarm signal is output from the controller;

when the power is turned on, the oscillation transformer 1103 outputs an AC current supplied and boosted therein.

The relay operation switching unit 1108 is connected to an output terminal of the oscillation transformer 1103 and turned on by a power supply.

The relay switch 1107 is installed at an output terminal of the relay operation switching unit 1108 and generates a magnetic force.

The first circuit connection switch sw1 performs a function of energizing the circuit while pulling the iron piece by the relay switch 1107.

The error signal output power switch sw2 is used to guide an error signal to be displayed by supplying power to the error signal output control unit 1140 when an iron piece is pulled by the relay switch 1107.

The power retention switching unit 1118 is connected to the first circuit connection switch, and the base end, the emitter end and the collector end are connected to the oscillation transformer 1103 and the relay operation switching unit 1108, and the operation of the relay operation switching unit 1108 causes the iron piece to be pulled to form a closed circuit, turning on, thereby stopping the operation of the relay switch 1107. In this case, when the first circuit connection switch sw1 and the error signal output power switch sw2 are forcibly turned off, the closing circuit is opened and the switch is opened, and the relay operation switching unit 1108 is turned on, so that the relay switch is turned on. The first circuit connection switch sw1 and the error signal output power switch sw2 are turned on to cause the error signal to be continuously output.

In addition, the present invention further includes an iron piece 1131 for circuit operation, an iron piece 1132 for connecting an alarm signal operation control unit, an elastic spring 1133, a permanent magnet 1134 and a manual operation switch 1135. And (4) configuring.

The iron piece 1131 for circuit operation is in contact with the first circuit connection switch to turn on the power holding switch.

The error signal output control unit power connection iron 1132 is designed to operate together with the circuit operation iron and when the circuit operation iron is connected to the error signal output control unit to cause the alarm device to operate.

A spring 1133 is installed between the first circuit connecting switch and the circuit operating iron piece so that the first circuit connecting switch and the circuit operating iron piece are always in an off state when not operating.

A permanent magnet 1134 is installed at one end of the first circuit connection switch, and when the relay switch is operated, an iron piece for circuit operation is pulled, and when the first circuit connection switch is switched, the permanent magnet 1134 is attached to the circuit operation iron to stop the operation of the relay switch. The holding power maintains the on state of the switching unit.

The manual operation switch 1135 is connected to the iron for circuit operation and the iron signal for connection to the error signal output control unit, and when the user operates to stop the alarm signal operation, the iron for circuit operation and the iron signal for power connection of the error signal output control unit. By turning off the error signal display unit, the alarm signal is no longer output.

The operation of the error signal automatic output unit 1000 will be described below.

First, when the error signal output unit 1102 is turned on, a DC power supply is connected to a power supply of the oscillation transformer, and a high voltage is applied to the secondary side of the oscillation transformer.

The power supplied to the secondary side becomes a half-wave dc power supply through the rectifying diode, and the half-wave dc power supply becomes a more stable dc power supply due to the charging/discharging action of the capacitor.

This DC power is applied to the anode terminal of the thyristor via the coil of the relay switch 1107, and the DC power is charged to the capacitor through the resistor. The increased voltage triggers the relay operation switching unit 1108 when passing through the diaak, thereby switching the anode and cathode terminals to perform the operation of the relay switch. Thus, the operation of the relay switch 1107 operates the first switch. When the circuit connection switch sw1 and the power switch sw2 for error signal output are turned on, power is applied to the error signal output control unit 1140 to display an error signal.

When the first circuit connection switch sw1 is operated, the base terminal of the power holding switch 1118 is activated, causing a closed circuit to the emitter terminal and collector terminal of the power holding switch 1118 to supply power to the transformer. It is switched off.

That is, the voltage between the resistor 1109 and the capacitor 1110 flows through the diode 1120 between the emitter terminal and the collector terminal of the power maintenance switch 1118 and is bypassed. When the voltage of the voltage decreases and the voltage between the resistor and the capacitor decreases, the trigger signal directed to the relay operation switching unit 1108 is stopped, so that the current flows through the relay switch 1107 while the anode terminal and the case terminal are closed. It stops supplying power for the switching.

On the other hand, if the operator turns off the first circuit connection switch and the error signal output power switch while outputting the error signal, no current flows in the closed circuit, and therefore, the bias voltage flows between the emitter terminal and the base terminal of the power maintenance switching part. This disappears and the power hold switch 1118 turns off.

When the power maintenance switching unit 1118 is turned off, the bypass voltage between the resistor and the capacitor through the diode 1120 disappears, and the voltage is charged in the capacitor 1110.

This charging voltage causes a break-through phenomenon of the bidirectional flip-flop 1111, and a trigger signal is output from the bidirectional flip-flop to the auxiliary switch operation switching unit 1108 to keep the circuit closed while moving the iron piece, while keeping the error signal controller 1140. By returning the power output to), operation of the error signal display unit 1150 may continue.

That is, according to the present invention, if the error cause is not repaired, a warning sound is continuously output to cause the error cause.

That is, even when the user operates the manual switch 1135 to turn off the alarm signal when the error signal output unit 1102 is turned on, the alarm signal is automatically output by resetting the power supply, thereby completely eliminating the error condition. Even if the alarm signal is blocked due to being unrecognized, it may restart again, which may result in a completely blocking error signal.

If the error signal output unit is turned off, the user may operate the manual switch 1135 to manually cut off the alarm signal.

Claims (6)

1. A support body formed by forming a space portion having an open lower portion inside a rectangular shape, the space portion including a rectangular panel shape to mount various components, and mounting an operation panel outside; the heating device is arranged at the upper part and the lower part and comprises a heating part for heating and a blowing part for blowing air; and protecting the heating means mounted on the support body by closing and wrapping the lower portion of the support body; a lower housing, comprising: a vacuum bag installed at the lower part of the support body and including parts required for vacuum pumping, a vacuum container, a vacuum packing mode pressure coming from the vacuum bag, the vacuum container, a vacuum device for exhausting sucked air through the heating device; the drying unit is installed at the upper part of the supporting body to form a space in which the food to be dried is inserted, and dries the food using heat provided by the heating device; a drying deck cover closing a top of the drying deck to temporarily prevent heat supplied from a heating device from escaping to the outside and causing concentrated heat to be supplied to the inside of the drying deck; an exhaust port for exhausting the coarse heat to the outside; the food dryer includes a vacuum device, a pressure sensor installed in the vacuum device, a control unit configured to receive a signal from the pressure sensor to determine whether the pressure sensor is operating, and as a result of the determination of the control unit, a signal of the pressure sensor is signaled to be configured to include an error signal automatic output unit, and a characteristic of the food dryer is that an alarm signal is output when no signal is input.

2. According to the claim 1, the heating device, the blowing motor and the blowing fan are located at the lower portion of the support main body for sucking the external air by the rotating force of the motor to be discharged to the drying station; a heater positioned above the support body, for replacing electric energy with heat energy by an external power supply to heat air; the food dryer is characterized in that it comprises a heater cover for protecting the heater by the outside of the sleeve heater.

3. The vacuum apparatus according to claim 1, wherein the vacuum pump is installed at a lower end of the support body to form a space therein to suck in external air, the vacuum motor is connected to the vacuum pump to supply vacuum pressure to the vacuum pump, to suck in external air, and to supply power to draw air out of the packing machine; a connecting hose extending from the vacuum pump to the relay vacuum pressure; mounted to be exposed to one side of the support body and provided with vacuum pressure at an inner side connected to the connection hose, and at an outer side configured to include a vacuum socket having a concave portion or a protrusion such that the outer vacuum hose is inserted into and connected to the food dryer.

4. The food dryer of claim 1, further comprising an air filter inside the support body to remove external dust and contaminants.

5. The apparatus of claim 1, wherein the error signal automatic output unit (1000) comprises: a power supply unit (1101) for applying a power signal by its own power supply, an error signal output unit 1102 for receiving a signal from a controller to switch a power supply circuit, an oscillation transformer 1103 for outputting alternating current power supplied when the power supply unit is turned on, a relay operation switching unit 1108 connected to an output terminal of the oscillation transformer 1103 and turned on by the power supply, a relay switch 1107 installed at an output terminal of the relay operation switching unit 1108 and generating a magnetic force; an error signal output power switch sw2 for supplying power to the error signal output control unit 1140 while the iron piece is pulled by the relay switch 1107 to generate an error signal to be displayed; a circuit operation iron 1131 for contacting a first circuit connection switch to turn on a power holding switch; an error signal output controller power connection iron 1132, which is designed to operate together with a circuit operation iron and cause an alarm device to operate by connecting a power supply to an error signal output control unit when the circuit operation iron is opened; a first circuit connection switch and a base terminal connection, an emitter terminal and a collector terminal are connected to the oscillating transformer 1103 and the relay operation switching unit 1108, and the iron piece is pulled by the operation of the relay operation switching unit 1108; when the switch is turned on while the closed circuit is formed, the relay switch 1107 stops; at this time, when the first circuit connection switch sw1 and the error signal output power switch sw2 are forcibly turned off, the closing circuit is opened and switched; the relay operation switching unit 1108 is turned off and turned on, so that the relay switch is turned on, so that the first circuit connection switch sw1 and the error signal output power switch sw2 are turned on to continuously output the error signal; the food dryer is characterized in that it comprises a maintenance switching unit (1118).

6. The method of claim 5, wherein the error signal automatic output unit 1000 is installed between a first circuit connection switch and a circuit operation iron piece, the first circuit connection switch and the circuit operation iron piece being always turned off when not operated; a spring 1133 for inducing retention; a permanent magnet 1134 installed at one end of the first circuit connection switch, for pulling the circuit-driven iron piece when the relay switch is activated, and for connecting the circuit-driven iron piece when the first circuit connection switch is switched, so as to continue this state even if the relay switch stops operating; it is connected to the iron for circuit operation and the iron signal for connecting the error signal output control unit, and when the user operates to stop the alarm signal operation, the error signal display unit food interrupter is operated by turning off the iron for operating the circuit and the iron signal for the error signal output control unit, characterized in that it further comprises a manually operated switch (1135) for stopping no more the alarm signal by stopping the pilot.