JP4044111B2 - Oil oxidation control device - Google Patents

Description

  The present invention relates to an apparatus for suppressing oxidation of fats and oils, particularly edible fats and oils used when cooking and processing foods, and more particularly to an apparatus for suppressing fat and oil oxidation that is intended to improve safety during cooking.

  Conventionally, edible fats and oils (cooking oil) have been used in general households, restaurants, food processors and the like when cooking and processing food. In particular, restaurants and food processors have to change cooking oil frequently when cooking with cooking oil for hygienic reasons such as deterioration of oil quality. Such frequent exchange of cooking oil has resulted in high economic costs and results in unnecessary waste of environmental resources.

  In general, the above-described deterioration of cooking oil quality is largely attributed to the oxidation of fats and oils. Therefore, in recent years, an apparatus in which the oxidation-reduction potential of edible fats and oils being heated by electrical treatment is lowered to slow down the oxidation speed of fats and oils has been used.

  FIG. 7 is a schematic configuration diagram of a conventional oil oxidation prevention device (fried cooker) disclosed in Patent Document 1. In the figure, a frying cooker 101 is composed of a control box 102 that can be connected to a DC power source or the like, and a grip portion 104 that holds a pair of rod-shaped electrodes 103a and 103b and a single rod-shaped ground electrode 103c. Yes.

  The grip portion 104 and the control box 102 are connected by a cable 105 including three lead wires having one end connected to each electrode 103a, 103b, 103c and the other end connected to a circuit in the control box.

  The control box 102 includes a high-frequency oscillator and a high-frequency switching command circuit connected to the high-frequency transmitter. Based on the command signal of the high-frequency switching command circuit, a pair of high-frequency switches are provided. A current voltage from a direct current power source is converted into a high frequency alternating current and applied alternately to a pair of rod-shaped electrodes (application electrodes) 103a and 103b.

  When fry cooking is performed using the frying cooker 101, hooks 104a provided at one end of the grip portion 104 are hooked on the edge of the pan in which the cooking oil to be heated is accommodated, and the electrodes 103a and 103b. , 103c is submerged in oil, the control box 102 is turned on, and when cooking oil reaches an appropriate temperature, fry cooking is performed later.

  Further, in Patent Document 2, as a voltage application unit, an electrode wire that is an application electrode is insulated and supported in a state of spreading in a spiral shape or a spiral shape, and an anode connection terminal is formed at an end thereof, An apparatus for generating an electric field in oil is disclosed.

  Further, Patent Document 3 discloses a device that uses a charging plate as a voltage application unit and sinks the charging plate in an oil tank of a fryer to form an electromagnetic field in the oil.

Japanese Patent No. 3068386 JP 2000-102484 A JP 2002-209761 A

  However, in the frying cooker 101 disclosed in Patent Document 1, the electrodes 103a and 103b to which the high-frequency AC voltage is applied are exposed, so that the cook (user) carelessly uses the gold chopsticks (cooking chopsticks). ), There was a risk of electric shock when touched. Further, when the electrodes 103a and 103b are in contact with a conductive fryer (oil tank), there is a possibility that the cook may be electrocuted just by touching the fryer.

  In addition to the electrodes 103a and 103b disclosed in Patent Document 1, there are voltage application units having various shapes and structures as disclosed in Patent Document 2 and Patent Document 3, both of which are electric shocks. It was not designed to prevent accidents sufficiently. Furthermore, the voltage application units disclosed in Patent Document 2 and Patent Document 3 are complicated in structure and shape, so that the voltage application unit cannot be easily maintained and cleaned, and the size is large. There was a problem that it was applicable only to a predetermined oil tank.

  In addition, although characteristics such as the degree of progress of oxidation of fats and oils vary depending on the type of oil and fat used and the type of fried food, conventional fat and oil oxidation suppression devices are not configured to adjust the high frequency band of the applied voltage. Therefore, applicable cooking oils and cooking objects are limited. Therefore, in the conventional fat and oil oxidation inhibiting device, when cooking oil having different characteristics of oxidation progress is used, the optimum cooking oil state, that is, the oxidation progress of the cooking oil is minimized. I couldn't cook. Therefore, when using different types of cooking oil, cooking must be performed with cooking oil that is not in an optimal state. As a result, the frequency of changing cooking oil cannot be reduced, resulting in an increase in economic costs and the fact that the taste, flavor, aroma, etc. of the cooking object cannot be maximized. It was.

  Therefore, the present invention has been made in view of the above circumstances, and the object of the present invention is to set an optimal high frequency band according to the type of oil and fat to be used and the cooking object, and to apply Another object of the present invention is to provide a fat and oil oxidation suppression device that prevents electric shock caused by the applied voltage, simplifies maintenance and cleaning, and improves versatility.

  An object of the present invention is to provide an antenna unit composed of a pair of application antennas and a ground antenna disposed between the pair of application antennas, and a control unit for controlling a high-frequency AC voltage applied to the pair of application antennas. In the oil and fat oxidation suppressing device that suppresses oxidation of the oil and fat by arranging the antenna unit in the oil and fat being heated and applying the high-frequency alternating voltage to the pair of applied antennas of the antenna unit The antenna unit includes a cover member that covers the pair of application antennas and the ground antenna.

  Further, the object is that the cover member is composed of an upper cover member and a lower cover member, and the upper cover member and the lower cover member are integrally coupled by engaging members provided at both ends. This is achieved effectively.

  Further, the object is to provide a center side from the end of the cover member so that the engaging member arranged on one end side of the both ends of the cover member has a space for hooking a finger at least inside the cover member. It is effectively achieved by being arranged in.

  Further, the object is that a connector provided at the end of the conductive wire of the antenna unit is connected to the control unit via a joint connector, and the joint connector is connectable to a plurality of the connectors. Is effectively achieved.

  Furthermore, the object is effectively achieved by the control unit including a frequency changeover switch having a plurality of channels so that the high frequency band of the high frequency AC voltage can be changed.

  According to the oil and fat oxidation suppressing apparatus according to the present invention, the application antenna to which the high-frequency AC voltage is applied is covered with the cover member, so that the application antenna contacts the cooker's gold chopsticks and fryer (oil tank). As a result, it is possible to reduce the risk of electric shock to the user during use.

  Further, the cover member is composed of two members, an upper cover member and a lower cover member, and has a space where a finger can be hooked inside an end portion on one end side of the cover member. Thereby, since an upper cover member and a lower cover member can be divided | segmented easily, a maintenance and a washing | cleaning operation | work can be performed easily.

  In addition, since the joint connector that can be connected to the connectors of the plurality of antenna units is provided, the number of antenna units connected to the control unit can be appropriately changed according to usage conditions such as the amount of oil used. As a result, when the amount of oil used is small, the number of antenna units connected to the control unit can be reduced to reduce the electrical cost. On the other hand, when the amount of oil used is large, the control unit Since the number of antenna units connected to can be increased, the versatility can be improved.

  In addition, the control unit is equipped with a frequency changeover switch having a plurality of channels, and by changing the high frequency band of the high frequency AC voltage applied to the applied antenna, it is optimal for the type of oil used and the cooking object. A high frequency band can be set. As a result, even when the types of oils and fats to be used are different, it is possible to reduce the replacement frequency of the oils and fats, and to maximize the taste, flavor, aroma and the like of the cooking object.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram showing the configuration of a fat oxidation inhibiting device according to an embodiment of the present invention. In FIG. 1, the oil oxidation prevention device 1 includes a control unit 3 connected to a power source via a power connector 2, a conductive line 4 connected to the control unit 3, and a connector 5 provided at the tip of the conductive line 4. And antenna units 6 and 6 connected to each other. As shown in the figure, this fat and oil oxidation suppressing device 1 is provided with antenna units 6 and 6 in an oil tank 9 such as a fryer 8 having a heating means 7 at the lower portion to suppress oxidation of the fat and oil 10 during heating. It is.

  FIG. 2 is a perspective view showing a part of the antenna unit 6 and is partially transparent. 3 is a top view of the antenna unit 6, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  In FIG. 2, the antenna unit 6 includes a pair of application antennas 11a and 11b to which a high-frequency AC voltage is applied by voltage control of the control unit 3, and a ground antenna 11c disposed between the pair of application antennas 11a and 11b. And a cover member 12 for covering these antennas 11a, 11b, and 11c. The cover member 12 includes an upper cover member 12A and a lower cover member 12B having a plurality of punching holes 13 formed on the surface thereof so that the voltage applied to the application antennas 11a and 11b is sufficiently applied to the oil and fat 10. . As shown in FIGS. 3 and 4, the upper cover member 12 </ b> A and the lower cover member 12 </ b> B are integrally coupled by engaging members 14 and 14 disposed at both ends.

  The coupling member 14 includes an engaging recess member 14A that is fastened to the upper cover member 12A by a rivet or the like, and an engaging convex member 14B that is similarly fixed to the lower cover member 12B. Are coupled by fitting a convex portion provided at the center of the engaging convex member 14B to the concave portion formed in the above.

  As shown in FIGS. 3 and 4, the engaging member 14 disposed on one end side (the left side in FIGS. 3 and 4) of the cover member 12 is closer to the center than the terminal end (the left end in FIGS. 3 and 4). A space S is formed between the engaging member 14 and the cover member 12. The space S has at least a gap that allows a finger to be hooked inside the cover member 12 so that the upper cover member and the lower cover member can be easily divided.

  Each antenna 11a, 11b, 11c is held at its both ends by separate blocks 15, 15 made of a material such as synthetic resin having insulation and heat resistance. The separate blocks 15 and 15 are secured to the upper cover member 12A by a rivet or the like, similar to the above-described engaging recess member 14A. Thus, in this embodiment, the fixing means of the engaging member 14 and the separate block 15 is made by eyelet joining (rivet joining) that is less susceptible to deterioration due to high frequency or the like than the fastening joint such as a screw. The device life is extended and durability is improved.

  The three conductive wires 4a, 4b and 4c connected to one end (right side of FIGS. 3 and 4) of each antenna 11a, 11b and 11c are covered with a material having insulating properties and heat resistance. The light is focused on one conductive wire 4 and connected to the control unit 3 through a connector 5 provided at the tip of the conductive wire 4.

  Moreover, in the oil-fat oxidation suppression apparatus 1 which concerns on this embodiment, when using the some antenna unit 6, as shown in FIG. 5, it can connect with the some connector 5 between the control unit 3 and the antenna unit 6. FIG. A joint connector 16 is interposed. In the figure, the joint connector is connected to the control unit 3 through one extension cord 17, and the joint connector 16 is connected to the ends of the conductive wires 4, 4 of the two antenna units 6, 6. The provided connectors 5 and 5 are connected.

  In FIG. 5, the joint connector 16 has a specification that can be connected to two connectors 5, but the present invention is not limited to this, and may be a specification that can be connected to three or more connectors 5. Also, a plurality of such joint connectors 16 may be connected to the control unit 3 and the number of antenna units may be increased to 4, 6,...

  Next, the circuit configuration of the control unit 3 according to the present embodiment will be described with reference to FIG. In the figure, the control unit 3 includes a power source unit 31 connected to a power source via the power connector 2 and the like, a frequency switching unit 32 for setting a high frequency band of a high frequency AC voltage applied to the antenna unit 6, Based on the frequency band set by the frequency switching unit 32, the microcomputer control 33 that outputs a high-frequency signal, and the DC voltage supplied from the power source unit 31 based on the high-frequency signal output from the microcomputer control unit 33 An abnormality has occurred in the user based on an abnormality occurrence signal that is output when the microcomputer amplifying unit 33 detects a danger such as a short circuit and the output amplifying unit 34 that converts the high-frequency alternating voltage to apply to the antenna unit 6 And an abnormality display / alarm unit 35 for informing the user.

  The frequency switching unit 32 includes a frequency switching switch 18 having a plurality of channels outside the control unit 3 so that the high frequency band of the high frequency AC voltage applied to the antenna unit 6 can be changed (see FIG. 1). The high frequency band can be arbitrarily set by 18. Thereby, the optimal high frequency band can be set according to the type of the fats and oils 10 to be used and the cooking object.

  Further, the microcomputer control unit 33 outputs a random switching command to the output amplification unit 34 together with the high-frequency command signal so that the high-frequency AC voltage that frequently generates a wave (shock wave) that fluctuates frequently does not repeat the same pattern in a short time. It has become.

  The output amplifying unit 34 includes a supply voltage detection circuit and a supply current detection circuit for detecting a voltage / current value supplied to the antenna unit, and the voltage / current value detected by these circuits is controlled by a microcomputer control unit. 33 is output. The microcomputer control unit 33 constantly monitors the voltage / current value. If the voltage / current value exceeds a predetermined threshold due to occurrence of an abnormality such as a short circuit, the microcomputer control unit 33 instantaneously randomizes the output amplification unit 34. The output of the switching command and the high frequency command signal is stopped to stop the high frequency AC voltage of the output amplifying unit 34, and an abnormality occurrence signal is output to the abnormality display / alarm unit 35 to cause an abnormality to the user with a lamp or buzzer sound The occurrence is notified.

  As described above, in the fat and oil oxidation suppressing device 1 according to the present embodiment, the pair of application antennas 11a and 11b to which the high-frequency AC voltage is applied contacts the oil tank 9 or the cooker's gold chopsticks (cooking chopsticks). In order to prevent this, the antenna unit 6 is provided with a cover member 12 for covering the pair of applied antennas 11a and 11b. Thereby, not only the direct electric shock by the application antennas 11a and 11b but also the risk of indirect electric shock can be reduced.

  Further, the cover member 12 is composed of two members, an upper cover member 12A and a lower cover member 12B, and has a space S in which a finger can be hooked inside an end portion on one end side of the cover member 12. Accordingly, the upper cover member 12A and the lower cover member 12B can be easily divided, and maintenance and cleaning operations can be easily performed.

  Further, by providing joint connectors 16 that can be connected to a plurality of connectors 5 between the antenna unit 6 and the control unit 3, the number of antenna units 6 to be applied can be appropriately changed. As a result, the versatility can be improved so as to cope with the case where the amount and type of the oil and fat 10 are different, and the minimum necessary antenna unit 6 is connected when the amount of the oil and fat 10 is small. Therefore, the electrical cost can be reduced.

  In addition, the control unit 3 includes a frequency changeover switch 18 having a plurality of channels, and the high frequency band of the high frequency AC voltage applied to the application antennas 11a and 11b can be changed as appropriate. The optimum high frequency band can be set according to the type.

  As mentioned above, although embodiment of this invention was described concretely, this invention is not limited to this, In the range which does not deviate from the meaning, it can change suitably.

It is the schematic which shows the structure of the fat-and-oil oxidation suppression apparatus which concerns on embodiment of this invention. It is the perspective view by which one part was seen through which shows the appearance of the antenna unit of the above-mentioned oil oxidation control device. It is a top view of the antenna unit. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is the schematic for demonstrating the case where several said antenna units are used. It is a block diagram which shows schematic structure in the control unit of the said fat-and-oil oxidation suppression apparatus. It is a schematic block diagram of the conventional oxidation suppression apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Oil and fat oxidation suppression apparatus 3 Control unit 4 Conductive wire 5 Connector 6 Antenna unit 10 Oil and fat 11a Applied antenna 11b Applied antenna 11c Ground antenna 12 Cover member 12A Upper cover member 12B Lower cover member 14 Engagement member 16 Joint connector 18 Frequency changeover switch S Space (gap for hooking fingers)

Claims (3)

An antenna unit having a pair of application antennas and a ground antenna disposed between the pair of application antennas, and a control unit for controlling a high-frequency AC voltage applied to the pair of application antennas, An oil / fat oxidation suppressing device that suppresses oxidation of the oil / fat by applying the high-frequency alternating voltage to the pair of applied antennas of the antenna unit,
The antenna unit includes a cover member that covers the pair of application antennas and the ground antenna,
The cover member includes an upper cover member and a lower cover member,
The upper cover member and the lower cover member are integrally coupled by engagement members provided at both ends, and
The fat and oil oxidation suppressing device , wherein the engagement member is arranged on the center side from the end of the cover member so as to have at least a space where a finger can be hooked inside the cover member . 2. The oil and fat according to claim 1 , wherein a connector provided at a tip of a conductive wire of the antenna unit is connected to the control unit via a joint connector, and the joint connector is connectable to a plurality of the connectors. Oxidation suppressor. The fat and oil oxidation suppressing device according to claim 1 or 2 , wherein the control unit includes a frequency changeover switch having a plurality of channels so that a high frequency band of the high frequency AC voltage can be changed.

Images