A device for dynamically adjusting uniformity in a box according to self-checking results

Abstract

The utility model relates to the technical field of refrigeration box refrigeration, concretely is a device of dynamic adjustment evenness in box according to self -checking result, including air duct board, the surface of air duct board is equipped with several regular arrangement's opening, temperature sensor array is fixedly connected with one side of air duct board close to the opening, the surface fixedly connected with step motor drive module of air duct board, the utility model, effectively solve the problem that current refrigeration box temperature is uneven, energy consumption is high and cold air leakage etc., according to sensor real -time data accurate control step motor drive silicon rubber shield board opening and closing, make refrigeration box each area temperature evenness significantly promote, temperature difference can be stably controlled within ±1.5 DEG C, satisfy medicine, reagent etc. to the high -standard requirement of storage temperature sensitive goods, simultaneously, based on the adaptive air supply strategy of temperature feedback, reduce compressor frequent start -stop, energy -saving effect reaches 15% 20%, reduce operating cost and equipment loss.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology for refrigerator boxes, and in particular to a device for dynamically adjusting the uniformity inside the box based on self-inspection results. Background Technology

[0002] Refrigerated boxes are devices used for storing and transporting items that require low-temperature preservation. They typically have an insulation layer, a refrigeration and control system to ensure that the internal temperature remains stable within a set range. Based on the refrigeration method, there are external, internal, frozen plate, liquid nitrogen or dry ice, and controlled atmosphere refrigerators, etc. They are widely used in the food industry, medical industry, laboratories and scientific research fields. Their history can be traced back to the late 19th century. In the early days, ice and salt were used for cooling, and later mechanical refrigeration was developed. Today, with continuous technological advancements, they are more intelligent, efficient and environmentally friendly.

[0003] However, most existing cold storage air duct systems use fixed openings or manually adjustable dampers, making it difficult to adjust the air volume in real time according to temperature changes in different areas. Especially in multi-layer storage structures, due to the natural sinking of cold air, the upper layer temperature is easily too high and the lower layer temperature is too low, which affects the reagent storage effect. Although some high-end models use multi-outlet independent air supply technology, their structure is complex and the cost is high. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing cold storage box air duct systems mostly use fixed openings or manually adjustable dampers, making it difficult to adjust the air volume in real time according to temperature changes in different areas. Therefore, this invention proposes a device that dynamically adjusts the uniformity inside the box based on self-test results.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a device for dynamically adjusting the uniformity inside a box based on self-inspection results, comprising an air duct plate, the surface of which is provided with a plurality of regularly arranged openings; a temperature sensor array is fixedly connected to the side of the air duct plate near the openings; three stepper motor drive modules are fixedly connected to the surface of the air duct plate, arranged in a linear array; a shielding adjustment mechanism is provided at the end of the air duct plate near the stepper motor drive modules; the shielding adjustment mechanism includes a slide rail, which is fixedly connected to the air duct plate; a screw is fixedly connected to the drive end of the stepper motor drive module; and a strip-shaped shielding plate is slidably connected to the surface of the slide rail. The screw is threadedly connected to the strip-shaped baffle. This invention effectively solves the problems of uneven temperature, high energy consumption, and cold air leakage in existing refrigerators. Based on real-time sensor data, it precisely controls the opening and closing of the silicone rubber baffle driven by a stepper motor, significantly improving the temperature uniformity of each area of ​​the refrigerator. The temperature difference can be stably controlled within ±1.5℃, meeting the high standards required for storing temperature-sensitive items such as medicines and reagents. At the same time, the adaptive air supply strategy based on temperature feedback reduces the frequent start-stop of the compressor, achieving energy savings of 15%-20%, reducing operating costs and equipment wear. In addition, the silicone rubber baffle tightly fits the edge of the opening, forming a highly efficient sealing structure to prevent cold air leakage, further improving temperature control accuracy and energy efficiency, combining practicality, economy, and reliability.

[0006] Preferably, the air duct plate is formed by bending Q235A cold-rolled steel plate, and the openings are arranged in a rectangular array, with each opening being an oblong hole of R3*34.

[0007] Preferably, the temperature sensor array is a digital sensor, and the temperature sensor array is connected via I... 2 The C-bus communicates with the main control board of the refrigerator. By setting up a temperature sensor array, it can accurately sense the temperature changes inside the refrigerator and dynamically adjust the air volume, significantly improving temperature uniformity and strictly controlling the temperature difference within ±1.5℃, thus meeting the storage requirements of temperature-sensitive items such as reagents.

[0008] Preferably, the screw is a ball screw structure, and the strip baffle is made of silicone rubber. By setting the screw and connecting it to the stepper motor drive module, the rotational motion of the motor is converted into linear motion. Through cooperation with the baffle, the movement of the baffle along the transverse axis of the air duct plate is precisely controlled, thereby realizing the linear adjustment of the opening area, ensuring the stability and accuracy of the air volume control, and providing a reliable mechanical transmission basis for intelligent temperature control.

[0009] Preferably, the temperature sensor array is electrically connected to the stepper motor drive module, and the main control board of the refrigerator connected to the temperature sensor array has a built-in PID control algorithm.

[0010] Preferably, there are three strip-shaped baffles, all of which are located at one end of the opening. By setting the strip baffles, the stepper motor drives the movement along the screw to dynamically cover the air duct opening according to the temperature data, accurately adjust the air volume of each area, and, in conjunction with the sealing characteristics, balance the cooling efficiency and temperature uniformity. It is a key component for realizing intelligent temperature control and energy saving.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, during installation, the air duct plate is embedded into the rear wall of the refrigerator, with the opening facing the storage area. Temperature sensor arrays are fixed in their standard positions. A stepper motor drive module is fixed to the back of the air duct plate via a bracket, with the screw parallel to the horizontal axis of the air duct plate. The user sets a target temperature value. The main control board collects sensor data every 5 minutes. When the temperature in a certain area exceeds the set value or deviates significantly from the uniformity of the other two areas, the corresponding stepper motor drive module rotates 180° clockwise, driving the baffle plate to cover 30% of the opening area. If the temperature remains high, the motor continues stepping until the opening is completely closed. When the temperature falls below the set value, the motor reverses and resets the opening to maximum ventilation. This design allows for the setting of the air duct plate to be used in this invention. This utility model effectively solves the problems of uneven temperature, high energy consumption, and cold air leakage in existing refrigerators. Based on real-time sensor data, it precisely controls the opening and closing of a silicone rubber baffle driven by a stepper motor, significantly improving the temperature uniformity of all areas of the refrigerator. The temperature difference can be stably controlled within ±1.5℃, meeting the high standards required for storing temperature-sensitive items such as medicines and reagents. At the same time, the adaptive air supply strategy based on temperature feedback reduces the frequent start-stop of the compressor, achieving energy savings of 15%-20%, reducing operating costs and equipment wear. In addition, the silicone rubber baffle tightly fits the edge of the opening, forming a highly efficient sealing structure to prevent cold air leakage, further improving temperature control accuracy and energy efficiency, and combining practicality, economy, and reliability. Attached Figure Description

[0012] Figure 1 This invention presents a three-dimensional structural diagram of a device for dynamically adjusting the uniformity within a box based on self-inspection results.

[0013] Legend: 1. Air duct plate; 2. Opening; 3. Temperature sensor array; 4. Stepper motor drive module; 5. Shielding adjustment mechanism; 6. Screw; 7. Slide rail; 8. Strip shielding plate. Detailed Implementation

[0014] Please see Figure 1 This utility model provides a technical solution: a device for dynamically adjusting the uniformity inside the box based on self-inspection results.

[0015] This implementation scheme includes: an air duct plate 1, the surface of which has several regularly arranged openings 2; a temperature sensor array 3 fixedly connected to the side of the air duct plate 1 near the openings 2; three stepper motor drive modules 4 fixedly connected to the surface of the air duct plate 1 in a linear array; a shielding adjustment mechanism 5 provided at the end of the air duct plate 1 near the stepper motor drive modules 4; the shielding adjustment mechanism 5 includes a slide rail 7 fixedly connected to the air duct plate 1; a screw 6 fixedly connected to the drive end of the stepper motor drive modules 4; a strip-shaped shielding plate 8 slidably connected to the surface of the slide rail 7; and a threaded connection between the screw 6 and the strip-shaped shielding plate 8. By setting this scheme... This novel design effectively solves the problems of uneven temperature, high energy consumption, and cold air leakage in existing refrigerators. Based on real-time sensor data, it precisely controls the opening and closing of a silicone rubber baffle driven by a stepper motor, significantly improving the temperature uniformity of all areas of the refrigerator. The temperature difference can be stably controlled within ±1.5℃, meeting the high standards required for storing temperature-sensitive items such as medicines and reagents. At the same time, the adaptive air supply strategy based on temperature feedback reduces the frequent start-stop of the compressor, achieving energy savings of 15%-20%, reducing operating costs and equipment wear. In addition, the silicone rubber baffle tightly fits the edge of the opening 2, forming a highly efficient sealing structure to prevent cold air leakage, further improving temperature control accuracy and energy efficiency, and combining practicality, economy, and reliability.

[0016] Specifically, the air duct plate 1 is made of Q235A cold-rolled steel plate and bent into shape. The opening 2 is arranged in a rectangular array and is an oblong hole with an R3*34 radius.

[0017] Specifically, temperature sensor array 3 is a digital sensor, and temperature sensor array 3 is connected via I... 2 The C-bus communicates with the main control board of the refrigerator. By setting up temperature sensor array 3, it can accurately sense the temperature changes inside the refrigerator and dynamically adjust the air volume, significantly improving temperature uniformity and strictly controlling the temperature difference within ±1.5℃, thus meeting the storage requirements of temperature-sensitive items such as reagents.

[0018] Specifically, the screw 6 is a ball screw structure, and the strip baffle 8 is made of silicone rubber.

[0019] In this embodiment: by setting a screw 6 and connecting it to the stepper motor drive module 4, the rotational motion of the motor is converted into linear motion. Through cooperation with the baffle plate, the movement of the baffle plate along the transverse axis of the air duct plate 1 is precisely controlled, thereby realizing the linear adjustment of the area of ​​the opening 2, ensuring the stability and accuracy of the air volume control, and providing a reliable mechanical transmission basis for intelligent temperature control.

[0020] Specifically, the temperature sensor array 3 is electrically connected to the stepper motor drive module 4, and the main control board of the refrigerator connected to the temperature sensor array 3 has a built-in PID control algorithm.

[0021] Specifically, there are three strip-shaped baffles 8, and all three strip-shaped baffles 8 are located at one end of the opening 2.

[0022] In this embodiment: by setting a strip baffle 8, the stepper motor drives it to translate along the screw 6, dynamically covering the air duct opening 2 according to the temperature data, accurately adjusting the air volume of each area, and combining the sealing characteristics to balance the cooling efficiency and temperature uniformity. It is a key execution component for realizing intelligent temperature control and energy saving.

[0023] Working principle: During installation, the air duct plate 1 is embedded into the rear wall of the refrigerator, with the opening 2 facing the storage area. The temperature sensor array 3 is fixed in the standard required positions. The stepper motor drive module 4 is fixed to the back of the air duct plate 1 by a bracket. The screw 6 is parallel to the horizontal axis of the air duct plate 1. The user sets the target temperature value. The main control board collects sensor data every 5 minutes. When the temperature in a certain area is higher than the set value or the deviation from the other two areas is too large and exceeds the standard requirement for uniformity, the corresponding stepper motor drive module 4 rotates 180° clockwise, driving the baffle plate to cover 30% of the opening 2 area. If the temperature continues to be high, the motor continues to step until the opening 2 is completely closed. When the temperature is lower than the set value, the motor reverses and resets the opening 2 to the maximum ventilation state. This invention effectively solves the problems of uneven temperature, high energy consumption, and cold air leakage in existing refrigerators. Based on real-time sensor data, it precisely controls the opening and closing of a silicone rubber baffle driven by a stepper motor, significantly improving the temperature uniformity of each area of ​​the refrigerator. The temperature difference can be stably controlled within ±1.5℃, meeting the high standards required for storing temperature-sensitive items such as medicines and reagents. At the same time, the adaptive air supply strategy based on temperature feedback reduces the frequent start-stop of the compressor, achieving energy savings of 15%-20%, reducing operating costs and equipment wear. In addition, the silicone rubber baffle tightly fits the edge of the opening 2, forming a highly efficient sealing structure to prevent cold air leakage, further improving temperature control accuracy and energy efficiency, and combining practicality, economy, and reliability.

Claims

1. A device for dynamically adjusting the uniformity within a box based on self-inspection results, comprising an air duct plate (1), characterized in that: The air duct plate (1) has several regularly arranged openings (2) on its surface. A temperature sensor array (3) is fixedly connected to the side of the air duct plate (1) near the openings (2). A stepper motor drive module (4) is fixedly connected to the surface of the air duct plate (1). There are three stepper motor drive modules (4), which are arranged in a linear array. A shielding adjustment mechanism (5) is provided at one end of the air duct plate (1) near the stepper motor drive module (4). The shielding adjustment mechanism (5) includes a slide rail (7). The slide rail (7) is fixedly connected to the air duct plate (1). A screw (6) is fixedly connected to the drive end of the stepper motor drive module (4). A strip shield (8) is slidably connected to the surface of the slide rail (7). The screw (6) is threadedly connected to the strip shield (8).

2. The device for dynamically adjusting the uniformity within a box based on self-inspection results according to claim 1, characterized in that: The air duct plate (1) is formed by bending Q235A cold plate, and the opening (2) is arranged in a rectangular array. The opening (2) is an elongated oval hole with an R3*34 radius.

3. The device for dynamically adjusting the uniformity within a box based on self-inspection results according to claim 2, characterized in that: The temperature sensor array (3) is a digital sensor, and the temperature sensor array (3) is connected via I... 2 The C-bus communicates with the main control board of the refrigerator.

4. The device for dynamically adjusting the uniformity within a box based on self-inspection results according to claim 3, characterized in that: The screw (6) is a ball screw structure, and the strip baffle (8) is made of silicone rubber.

5. The device for dynamically adjusting the uniformity within a box based on self-inspection results according to claim 4, characterized in that: The temperature sensor array (3) is electrically connected to the stepper motor drive module (4), and the main control board of the refrigerator connected to the temperature sensor array (3) has a built-in PID control algorithm.

6. The device for dynamically adjusting the uniformity within a box based on self-inspection results according to claim 5, characterized in that: There are three strip-shaped shields (8), and all three strip-shaped shields (8) are located at one end of the opening (2).

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