Electric field control device for food preservation
By designing an electric field control device for food preservation, and using multiple sets of adjustment circuits and main controller modules to achieve automatic and accurate adjustment of the electric field, the problem of inaccurate electric field adjustment in the prior art is solved, and the fresh preservation effect of food is significantly improved.
Patent Information
- Application Number
- CN202422277242.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In the existing food preservation technology, the electric field lacks precise regulation capabilities and cannot adapt to the preservation needs of different foods.
An electric field control device including an electric field adjustment module, a control device and a display is designed, and the electric field is automatically and accurately adjusted through multiple sets of adjustment circuits and main controller modules.
It realizes automatic and precise adjustment of suitable fresh-keeping electric fields for different foods, improves the degree of automation and accuracy of electric field adjustment, extends the shelf life of foods, and maintains freshness and nutritional value.
Smart Images
Figure CN223038324U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food preservation, and particularly relates to an electric field control device for food preservation. Background Art
[0002] During the storage of foods such as meat, aquatic products, fruits and vegetables, reactions such as oxidation and degradation will occur in the products, resulting in deterioration of quality, and the quality of the food will be affected. The purpose of preservation is to change the external storage environment through artificial factors, control the number of microorganisms on the surface and inside, limit their activity range and reproduction, reduce the spoilage rate, so as to maintain freshness and edible quality. The common preservation technologies in our country for foods mainly include low-temperature preservation, modified atmosphere preservation, chemical preservation methods, etc. However, conventional food preservation and freezing methods are gradually being phased out due to greater loss of food quality, and the influence of auxiliary storage methods such as magnetic fields and electric fields on the non-thermal effects of foods has received extensive attention. However, the electric fields currently used for auxiliary preservation lack the ability of precise adjustment, generally using a single-frequency electric field or requiring manual adjustment of the frequency to adapt to different foods.
[0003] In summary, how to develop an electric field control device for food preservation that can automatically and precisely adjust the appropriate preservation electric field for different foods is a technical problem that needs to be solved in this field currently. Summary of the Utility Model
[0004] In response to the problems and requirements mentioned above, this solution proposes an electric field control device for food preservation.
[0005] To achieve the above object, the utility model provides the following technical solution: An electric field control device for food preservation, comprising: an electric field adjustment module, a control device and a display;
[0006] The input end of the electric field adjustment module is electrically connected to the output end of the control device, and the output end of the electric field adjustment module is connected to two groups of parallel plates in a food preservation container through a connecting wire, and each group of parallel plates includes a plurality of plates;
[0007] The control device includes a main controller module and a voice reminder module. The voice reminder module and the display are both electrically connected to the main controller module. The voice reminder module is used to remind the current electric field information, and the display is used to display the current electric field information.
[0008] Further, the electric field adjustment module includes multiple groups of adjustment circuits. Each group of adjustment circuits includes a relay, a multivibrator circuit, and an ultrasonic frequency oscillator circuit. The relay is electrically connected to the main controller module. The relay is connected to a contactor to control the on / off of the power supply. The output end of the multivibrator circuit is electrically connected to the input end of the ultrasonic frequency oscillator circuit. The output end of the ultrasonic frequency oscillator circuit is connected to the two sets of parallel plates.
[0009] Even further, each group of adjustment circuits further includes a rectification circuit. The rectification circuit includes a transformer T1, a bridge rectifier A1, a capacitor C1, a capacitor C2, and a voltage conversion chip U1. The primary coil of the transformer T1 is connected to the power supply end. The secondary coil of the transformer T1 is electrically connected to the AC side input end of the bridge rectifier A1. The DC side output end of the bridge rectifier A1 is connected between the input end of the voltage conversion chip U1 and the ground. The capacitor C1 is connected between the input end of the voltage conversion chip U1 and the ground. The capacitor C2 is connected between the output end of the voltage conversion chip U1 and the ground.
[0010] Even further, the multivibrator circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C3, a capacitor C4, a triode Q1, and a triode Q2. The output end of the voltage conversion chip U1 is connected in parallel with one end of the resistor R1, one end of the resistor R2, one end of the resistor R3, and one end of the resistor R4. The other end of the resistor R1 is connected in parallel with one end of the capacitor C3 and the collector of the triode Q1. The emitter of the triode Q1 is grounded. The base of the triode Q1 is connected in parallel with one end of the capacitor C4 and the other end of the resistor R3. The other end of the capacitor C3 is connected to the other end of the resistor R2 and the base of the triode Q2. The emitter of the triode Q2 is grounded.
[0011] Further, the super audio frequency oscillation circuit includes a sliding resistor R5, a capacitor C5, a triode Q3, a triode Q4, a transformer T2, and a rectifying diode D1. The collector of the triode Q2 is connected in parallel with one end of the sliding resistor R5. The other end of the sliding resistor R5 is connected in parallel with the second end of the primary coil of the transformer T2. The capacitor C5 is connected in parallel between the other end of the sliding resistor R5 and the ground. The first end of the primary coil of the transformer T2 is connected to the base of the triode Q4. The third end of the primary coil of the transformer T2 is connected to the base of the triode Q3. The emitters of the triode Q4 and the triode Q3 are connected and grounded. The fourth end of the primary coil of the transformer T2 is connected to the collector of the triode Q3. The fifth end of the primary coil of the transformer T2 is connected to one end of the resistor R4. The sixth end of the primary coil of the transformer T2 is connected to the collector of the triode Q3. The first end of the secondary coil of the transformer T2 is connected to the positive electrode of the rectifying diode D1. The negative electrode of the rectifying diode D1 is connected to a parallel plate.
[0012] Further, the two groups of parallel plates are arranged in parallel on the inner wall of the heat preservation layer of the food preservation container.
[0013] Further, the main controller module includes an MCU controller, a timer chip, a memory chip, and a Bluetooth module. The timer chip, the memory chip, and the Bluetooth module are all electrically connected to the MCU controller.
[0014] As can be seen from the above technical solutions, the beneficial effects of the present utility model are as follows:
[0015] 1. The present utility model can automatically and accurately adjust the appropriate preservation electric field for different foods, and has the characteristics of high automation degree, more accurate electric field adjustment, and high adaptability.
[0016] 2. In the present utility model, the main controller module controls the corresponding adjustment circuit to start through a relay to realize high-voltage electrostatic fields of different levels. The high-voltage electrostatic fields ionize the air between the plates, generating ozone and positive and negative ions that diffuse into the space where the food is stored, playing a preservation role, and having advantages such as good preservation effect, short processing time, and simple operation.
[0017] In addition to the purposes, features, and advantages described above, the optimal embodiments of implementing the present utility model will be described in more detail below with reference to the drawings, so as to easily understand the features and advantages of the present utility model. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present invention or the prior art. Among them, the drawings are only used to show some embodiments of the present invention, rather than limiting all embodiments of the present invention thereto.
[0019] Figure 1 It is a schematic structural diagram of the composition of an electric field control device for food preservation according to the present invention.
[0020] Figure 2 It is a schematic circuit diagram of the electric field adjustment module in the present invention. Detailed implementation manners
[0021] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the following further describes the present application in detail in conjunction with the implementation manners and the drawings. Herein, the illustrative implementation manners of the present application and their descriptions are used to explain the present application, but not to limit the present application.
[0022] To make the objectives, technical solutions, and advantages of the technical solutions of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the specific embodiments of the present invention. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.
[0023] Electric field preservation is a technology that uses electric field technology to extend the preservation period of foods and other items. The electric field preservation technology mainly releases low-frequency electrostatic waves through the discharge plates. These electrostatic waves exert an influence on water molecules, causing the water molecules to resonate and refine the water molecule clusters, thereby activating the water molecules. Since most living organisms are composed of water molecules, activating water molecules is actually equivalent to activating cells. This activation effect causes the food cells to vibrate slightly, thereby activating the cells, achieving the effects of extending the preservation time, inhibiting the proliferation of bacteria, and reducing the deterioration rate of the food. The present application discloses an electric field control device for food preservation, making the electric field adjustment more accurate and having higher adaptability to different foods. As Figures 1 to 2 shown, the device includes: an electric field adjustment module, a control device, and a display. The input end of the electric field adjustment module is electrically connected to the output end of the control device, and the output end of the electric field adjustment module is connected to two groups of parallel plates in the food preservation container through a connecting wire. Each group of parallel plates includes a plurality of plates. Among them, the two groups of parallel plates are arranged in parallel on the inner wall of the heat preservation layer of the food preservation container.
[0024] In this embodiment, the food preservation container further has a refrigeration system, and the high-voltage electrostatic field-assisted food freezing technology achieves the best food preservation effect. While extending the preservation period, the electric field preservation technology can also effectively maintain the freshness, taste and nutritional components of food.
[0025] The suitable preservation electric fields for different foods are different. Therefore, it is necessary to adjust the preservation electric field to adapt to different food preservation scenarios. Specifically, the electric field adjustment module includes multiple groups of adjustment circuits. Each group of adjustment circuits includes a relay, a multivibrator circuit and an ultrasonic frequency oscillator circuit. The relay is electrically connected to the main controller module. The relay is connected to a contactor to control the on / off of the power supply. The output end of the multivibrator circuit is electrically connected to the input end of the ultrasonic frequency oscillator circuit. The output end of the ultrasonic frequency oscillator circuit is connected to the two groups of parallel plates.
[0026] As Figure 2 shown, each group of adjustment circuits further includes a rectifier circuit. The rectifier circuit includes a transformer T1, a bridge rectifier A1, a capacitor C1, a capacitor C2, and a voltage conversion chip U1. The primary coil of the transformer T1 is connected to the power supply end. The secondary coil of the transformer T1 is electrically connected to the AC side input end of the bridge rectifier A1. The DC side output end of the bridge rectifier A1 is connected between the input end of the voltage conversion chip U1 and the ground. The capacitor C1 is connected between the input end of the voltage conversion chip U1 and the ground. The capacitor C2 is connected between the output end of the voltage conversion chip U1 and the ground.
[0027] The multivibrator circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C3, a capacitor C4, a triode Q1, and a triode Q2. The output end of the voltage conversion chip U1 is connected in parallel with one end of the resistor R1, one end of the resistor R2, one end of the resistor R3, and one end of the resistor R4. The other end of the resistor R1 is connected in parallel with one end of the capacitor C3 and the collector of the triode Q1. The emitter of the triode Q1 is grounded. The base of the triode Q1 is connected in parallel with one end of the capacitor C4 and the other end of the resistor R3. The other end of the capacitor C3 is connected to the other end of the resistor R2 and the base of the triode Q2. The emitter of the triode Q2 is grounded.
[0028] The ultra-audio frequency oscillation circuit includes a sliding resistor R5, a capacitor C5, a triode Q3, a triode Q4, a transformer T2, and a rectifying diode D1. The collector of the triode Q2 is connected in parallel with one end of the sliding resistor R5. The other end of the sliding resistor R5 is connected in parallel with the second end of the primary coil of the transformer T2. The capacitor C5 is connected in parallel between the other end of the sliding resistor R5 and the ground. The first end of the primary coil of the transformer T2 is connected to the base of the triode Q4. The third end of the primary coil of the transformer T2 is connected to the base of the triode Q3. The emitters of the triode Q4 and the triode Q3 are connected and then grounded. The fourth end of the primary coil of the transformer T2 is connected to the collector of the triode Q3. The fifth end of the primary coil of the transformer T2 is connected to one end of the resistor R4. The sixth end of the primary coil of the transformer T2 is connected to the collector of the triode Q3. The first end of the secondary coil of the transformer T2 is connected to the positive pole of the rectifying diode D1. The negative pole of the rectifying diode D1 is connected to a parallel plate.
[0029] In this embodiment, the transformer T1 is a power transformer, the transformer T2 is a high-voltage oscillation transformer, the voltage conversion chip U1 is a boost chip, the MCU controller controls the power supply through a relay. After the power supply is turned on, the oscillation circuit works, and a high-frequency signal is generated after passing through the ultra-audio frequency oscillation circuit. Then, after being coupled by the high-voltage oscillation transformer and rectified by the diode, it is applied to the metal electrode plate to form an electric field, achieving the purpose of food preservation. This application uses multiple electrode plates to achieve the purpose of flexibly adjusting the electric field. By adjusting the number of working electrode plates, the applicable food preservation range is made wider.
[0030] When the system works, after the food is placed in the preservation container, the refrigeration system starts to work, reducing the temperature inside the container to the set freezing temperature. At the same time, the high-voltage electrostatic field generated by the parallel electrode plates of this device begins to act on water molecules and microorganisms such as bacteria in the food. The action of the electrostatic field makes the water molecules more active, helping to maintain the freshness and taste of the food; at the same time, the electrostatic field can also inhibit or kill the growth and reproduction of microorganisms such as bacteria. Under the action of this composite preservation technology, the preservation period of the food is extended, while maintaining the nutritional value and taste quality.
[0031] The control device includes a main controller module and a voice reminder module. The voice reminder module and the display are both electrically connected to the main controller module. The voice reminder module is used to remind the current electric field information, and the display is used to display the current electric field information. The voice reminder module includes a voice chip and a speaker. The voice chip is electrically connected to the MCU controller through a serial port. When receiving an electrical signal, it controls the speaker to play a reminder voice.
[0032] In this application, the main controller module includes an MCU controller, a timer chip, a memory chip, and a Bluetooth module. The timer chip, the memory chip, and the Bluetooth module are all electrically connected to the MCU controller. In this embodiment, the MCU controller uses the model STM32F103C8T6. The timer chip is used to record the working duration information of the electric field. The memory chip is used to store the preset electric field adjustment parameters. The Bluetooth module is used to connect to an external Bluetooth device and upload the working information of the electric field. This application has a high degree of automation, can adjust the electric field to make its use more adaptable, and is combined with the refrigeration system to achieve a better effect on food preservation.
[0033] It should be noted that the embodiments described in this utility model are only the preferred ways to implement the utility model. Any obvious modifications that belong to the overall concept of the utility model should fall within the protection scope of the utility model.
Claims
1. An electric field control device for food preservation, characterized in that: include: Electric field regulation module, control device and display; The input end of the electric field regulating module is electrically connected to the output end of the control device, and the output end of the electric field regulating module is connected to two sets of parallel plates in the food preservation container through a connecting line, and each set of parallel plates includes a plurality of plates; The control device includes a main controller module and a voice reminder module. The voice reminder module and the display are both electrically connected to the main controller module. The voice reminder module is used to remind current electric field information, and the display is used to display current electric field information.
2. The electric field control device for food preservation according to claim 1, characterized in that: The electric field regulation module includes multiple groups of regulation circuits, each group of regulation circuits includes a relay, a multivibrator circuit and an ultrasonic oscillation circuit, the relay is electrically connected to the main controller module, the relay is connected to an AC contactor for controlling the on and off of a power supply, the output end of the multivibrator circuit is electrically connected to the input end of the ultrasonic oscillation circuit, and the output end of the ultrasonic oscillation circuit is connected to the two groups of parallel plates.
3. The electric field control device for food preservation according to claim 2, characterized in that: Each group of regulation circuits also includes a rectifier circuit, which includes a transformer T1, a bridge rectifier A1, a capacitor C1, a capacitor C2, and a voltage conversion chip U1. The primary coil of the transformer T1 is connected to the power supply end, the secondary coil of the transformer T1 is electrically connected to the AC side input end of the bridge rectifier A1, the DC side output end of the bridge rectifier A1 is connected between the input end of the voltage conversion chip U1 and the ground, the capacitor C1 is connected between the input end of the voltage conversion chip U1 and the ground, and the capacitor C2 is connected between the output end of the voltage conversion chip U1 and the ground.
4. The electric field control device for food preservation according to claim 3, characterized in that: The multivibrator circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C3, a capacitor C4, a transistor Q1, and a transistor Q2. The output end of the voltage conversion chip U1 is connected in parallel with one end of the resistor R1, one end of the resistor R2, one end of the resistor R3, and one end of the resistor R4. The other end of the resistor R1 is connected in parallel with one end of the capacitor C3 and the collector of the transistor Q1. The emitter of the transistor Q1 is grounded. The base of the transistor Q1 is connected in parallel with one end of the capacitor C4 and the other end of the resistor R3. The other end of the capacitor C3 is connected with the other end of the resistor R2 and the base of the transistor Q2. The emitter of the transistor Q2 is grounded.
5. The electric field control device for food preservation according to claim 4, characterized in that: The ultrasonic oscillation circuit includes a sliding resistor R5, a capacitor C5, a transistor Q3, a transistor Q4, a transformer T2 and a rectifier diode D1. The collector of the transistor Q2 is connected in parallel with one end of the sliding resistor R5, the other end of the sliding resistor R5 is connected in parallel with the second end of the primary coil of the transformer T2, the capacitor C5 is connected in parallel between the other end of the sliding resistor R5 and the ground, the first end of the primary coil of the transformer T2 is connected to the base of the transistor Q4, the third end of the primary coil of the transformer T2 is connected to the The base of the transistor Q3 is connected, the emitter of the transistor Q4 is connected to the emitter of the transistor Q3 and then grounded, the fourth end of the primary coil of the transformer T2 is connected to the collector of the transistor Q3, the fifth end of the primary coil of the transformer T2 is connected to one end of the resistor R4, the sixth end of the primary coil of the transformer T2 is connected to the collector of the transistor Q3, the first end of the secondary coil of the transformer T2 is connected to the positive electrode of the rectifier diode D1, and the negative electrode of the rectifier diode D1 is connected to a parallel plate.
6. The electric field control device for food preservation according to claim 1, characterized in that: The two groups of parallel pole plates are arranged in parallel on the inner wall of the heat preservation layer of the food preservation container.
7. The electric field control device for food preservation according to claim 1, characterized in that: The main controller module includes an MCU controller, a timer chip, a memory chip and a Bluetooth module. The timer chip, the memory chip and the Bluetooth module are all electrically connected to the MCU controller.