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CN-224203046-U - Air-conditioning fresh-keeping detection device

CN224203046UCN 224203046 UCN224203046 UCN 224203046UCN-224203046-U

Abstract

The utility model relates to the technical field of fresh-keeping equipment, in particular to an air-conditioning fresh-keeping detection device, which comprises a fresh-keeping storage cavity, wherein an opening and closing cover is detachably arranged at the top of the fresh-keeping storage cavity, the opening and closing cover is of a three-layer structure, an air-conditioning control layer, a pH response layer and a protection layer are sequentially arranged from bottom to top, an air tank is arranged at one side of the interior of the fresh-keeping storage cavity, the air-conditioning control layer adopts a micropore structure, and the pH response layer is embedded into an anthocyanin microcapsule array. In the air-conditioning fresh-keeping detection device, the device integrates air-conditioning control and freshness detection functions into a multi-layer structure of the opening and closing cover. The pH response layer is embedded into an anthocyanin microcapsule array, and the color development reaction of natural pigments (purple sweet potato, blueberry and black wolfberry anthocyanin) with different pH responses is utilized to monitor the change of the freshness of foods in real time, so that the problem of single function of the traditional fresh-keeping equipment is solved.

Inventors

  • CHEN RUI
  • DONG ZIHUI
  • CHEN BAICHUAN
  • WANG YUNKAI

Assignees

  • 江苏农林职业技术学院

Dates

Publication Date
20260505
Application Date
20250519

Claims (9)

  1. 1. The modified atmosphere fresh-keeping detection device comprises a fresh-keeping storage cavity (1) and is characterized in that an opening and closing cover (2) is detachably arranged at the top of the fresh-keeping storage cavity (1), the opening and closing cover (2) is of a three-layer structure, an air-conditioning control layer (21), a pH response layer (22) and a protection layer (23) are sequentially arranged from bottom to top, an air tank (3) is arranged at one side of the inside of the fresh-keeping storage cavity (1), the air-conditioning control layer (21) adopts a microporous structure, and the pH response layer (22) is embedded into an anthocyanin microcapsule array.
  2. 2. The modified atmosphere fresh-keeping detection device according to claim 1, wherein one side of the modified atmosphere control layer (21) is connected with a vent pipe (211), the inner part of the gas tank (3) is provided with three bins for respectively storing O 2 、CO 2 、N 2 gas, and the top of the gas tank (3) is connected to the vent pipe (211) through an output pipe (31).
  3. 3. The modified atmosphere fresh-keeping detection device of claim 1, wherein the anthocyanin microcapsule array is formed by integrating natural pigments with different pH responses in a microarray mode, and is used for realizing a freshness monitoring function according to anthocyanin color development reaction, and the natural pigments with different pH responses adopt purple sweet potato anthocyanin, blueberry anthocyanin and lycium ruthenicum anthocyanin.
  4. 4. The modified atmosphere fresh-keeping detection device according to claim 3, wherein a camera (25) is installed at the bottom of the opening and closing cover (2) through a bracket (24), and a shooting end of the camera (25) is aligned with the middle part of the pH response layer (22).
  5. 5. The modified atmosphere fresh-keeping detection device according to claim 1, wherein the protective layer (23) adopts a degradable nanofiber membrane structure.
  6. 6. The modified atmosphere fresh-keeping detection device according to claim 1, wherein a fixing ring (221) is arranged on the outer side of the pH response layer (22), and a sensor module (222) is arranged on the fixing ring (221).
  7. 7. The modified atmosphere fresh-keeping detection device according to claim 6, wherein the sensor module (222) comprises a gas sensor, a temperature sensor and a humidity sensor, and the gas sensors are an O 2 concentration sensor, a CO 2 concentration sensor and an N 2 concentration sensor respectively.
  8. 8. The modified atmosphere fresh-keeping detection device according to claim 7, wherein the sensor module (222) further comprises a reminding unit, a communication module and a power supply module, the sensor module (222) is connected with external equipment through the communication module for data transmission, the power supply module is used for supplying power, and the reminding unit is used for sending out reminding when concentration is abnormal.
  9. 9. The modified atmosphere fresh-keeping detection device according to claim 8, wherein the reminding unit is one or more of a sound reminding unit, a light reminding unit and a vibration reminding unit, and the communication module is one of a Bluetooth communication module, a Wi-Fi communication module and a cellular network communication module.

Description

Air-conditioning fresh-keeping detection device Technical Field The utility model relates to the technical field of preservation equipment, in particular to an air-conditioning preservation detection device. Background In the field of food preservation, the modified atmosphere preservation technology can inhibit the growth of microorganisms and the physiological metabolism of food by regulating the gas components in the environment, so that the shelf life of the food is prolonged, and the modified atmosphere preservation technology is widely applied to the preservation and storage of fruits, vegetables, meat and the like. Most of traditional air-conditioning fresh-keeping equipment only has a simple air conditioning function, is difficult to realize accurate control and real-time monitoring of air concentration in fresh-keeping environment, lacks effective detection means for food freshness, and cannot meet the requirements of modern food fresh-keeping on intellectualization and accuracy. Some improved preservation technologies try to optimize preservation effect from the angle of temperature control and the like, for example, the patent of the invention with the application number 201911357987.1 discloses a preservation device, which inhibits aggregation and transformation of water molecules through an electrostatic field device, reduces food freezing points, and utilizes a controller to adjust a refrigerating system, so that the temperature in a box body is maintained below 0 ℃ above the food freezing points, and microbial metabolism and food respiration metabolism rate are inhibited to a certain extent. However, the device is only focused on temperature control and electrostatic field preservation, lacks the dynamic adjustment and detection functions of gas components in the preservation environment, cannot flexibly adjust the gas environment according to different food preservation demands, does not have the freshness detection function, and is difficult to comprehensively and accurately guarantee the food preservation effect. In addition, the existing fresh-keeping device is not enough in consideration of environmental protection and functional integration of materials in structural design, and is difficult to adapt to the requirement of sustainable development. Therefore, research and development have dual intelligent detection function of gas regulating freshness, and the gas regulating fresh-keeping detection device of rational in infrastructure and environmental protection has important realistic meaning. Disclosure of utility model The utility model aims to provide an air-conditioning fresh-keeping detection device, which solves the problems that the lack of the dynamic adjustment and detection functions on the air components in the fresh-keeping environment in the prior art can not flexibly adjust the air environment according to different food fresh-keeping requirements, and the air-conditioning fresh-keeping detection device also has no freshness detection function, so that the food fresh-keeping effect is difficult to comprehensively and accurately guarantee. In order to achieve the aim, the utility model provides an air-conditioning fresh-keeping detection device which comprises a fresh-keeping storage cavity, wherein an opening and closing cover is detachably arranged at the top of the fresh-keeping storage cavity, the opening and closing cover is of a three-layer structure, an air-conditioning control layer, a pH response layer and a protection layer are sequentially arranged from bottom to top, an air tank is arranged at one side of the inside of the fresh-keeping storage cavity, the air-conditioning control layer is of a microporous structure, and the pH response layer is embedded into an anthocyanin microcapsule array. The three-layer structure design of the detachable opening and closing cover is adopted in the setting, the gas-regulating control layer utilizes the micropore structure to realize gas selective permeation, the pH response layer responds to pH change generated by food spoilage through the anthocyanin microcapsule array, and the protection layer provides physical protection and keeps the internal environment stable. Preferably, one side of the air-conditioning control layer is connected with a vent pipe, the interior of the air tank is divided into three bins for respectively storing O 2、CO2、N2 gas, and the top of the air tank is connected to the vent pipe through an output pipe. The gas tank is arranged to store O 2、CO2、N2 in different bins, the gas is conveyed to the gas regulating and controlling layer through the output pipe and the vent pipe, and the gas proportion in the cavity is regulated by utilizing the gas permeability characteristic of the micropore structure. The output ends of the three bins are respectively provided with an independent switch valve. Preferably, the anthocyanin microcapsule array is formed by integrating natural pigments with different pH resp