A Thermal Compensation Control Method, Device and Storage Medium for a Blood Refrigerator

Abstract

The present invention provides a heat compensation control method, device and storage medium for a blood refrigerator. The method of the present invention includes: obtaining the real-time temperature inside the blood refrigerator, denoted as T a ; obtaining the real-time temperature of the evaporator in the blood refrigerator, denoted as T b ; setting the defrosting temperature to -18°C; the main controller updates the heat compensation value T a in real time according to the obtained real-time temperature T b inside the blood refrigerator and the obtained real-time temperature T α of the evaporator; setting the target temperature T c , and the main controller controls the start and stop of the heat compensator according to the relationship between the target temperature T c , the heat compensation value T α , the obtained real-time temperature T a inside the blood refrigerator, the obtained real-time temperature T b of the evaporator and the defrosting temperature, so as to achieve precise control of the temperature inside the refrigerator. The present invention adopts a heat compensation technology, monitors environmental parameters in real time, updates the heat compensation value, and adjusts the operating state of the refrigeration device according to the heat compensation value, thereby achieving precise control of the temperature inside the refrigerator.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and more particularly, to a thermal compensation control method, device and storage medium for a blood refrigerator. Background Art

[0002] Due to the influence of factors such as environmental temperature and humidity, the temperature inside the refrigerator may fluctuate, resulting in poor refrigeration effect and affecting the quality and safety of items such as food and medicine. In the prior art, the temperature control in the refrigerator is usually achieved by timed defrosting and compressor start-stop control. However, this control method has some problems. For example, the temperature inside the box fluctuates greatly with the amount of load inside the box and the influence of environmental temperature and humidity. When reaching the shutdown temperature, after the compressor stops, the temperature inside the box will first drop and then rise due to inertia, exceeding the specified operating temperature. When reaching the startup temperature, similarly due to inertia, the temperature inside the box will first rise and then drop, also exceeding the operating temperature. Summary of the Invention

[0003] In order to solve the problems of temperature control accuracy and stability inside the blood storage refrigerator in the medical device industry, the present invention provides a thermal compensation control method, device and storage medium for a blood refrigerator. The present invention adopts thermal compensation technology, monitors environmental parameters in real time, updates the thermal compensation value, and adjusts the operating state of the refrigeration device according to the thermal compensation value, thereby achieving precise control of the temperature inside the refrigerator.

[0004] The technical means adopted by the present invention are as follows:

[0005] A thermal compensation control method for a blood refrigerator, comprising:

[0006] Obtain the real-time temperature inside the blood refrigerator, denoted as T a ;

[0007] Obtain the real-time temperature of the evaporator in the blood refrigerator, denoted as T b ;

[0008] Set the defrosting temperature to -18 °C;

[0009] The main controller updates the thermal compensation value T a in real time according to the obtained real-time temperature T b inside the blood refrigerator and the obtained real-time temperature T α of the evaporator;

[0010] Set the target temperature T c , and the main controller determines according to the target temperature T c , the thermal compensation value T α , the obtained real-time temperature T a inside the blood refrigerator, and the obtained real-time temperature T bControl the start and stop of the thermal compensator based on the relationship with the defrosting temperature, so as to accurately control the temperature inside the refrigerator.

[0011] Furthermore, obtain the real-time temperature T inside the blood refrigerator through the temperature sensor a , and obtain the real-time temperature T of the evaporator through the evaporator sensor b . The main controller detects the temperature inside the blood refrigerator in real time through the temperature sensor and the evaporator sensor.

[0012] Furthermore, the thermal compensation value T α is updated in real time according to the obtained real-time temperature T inside the blood refrigerator a and the obtained real-time temperature T of the evaporator b by the controller PID, specifically:

[0013] If the temperature of the blood refrigerator does not reach the set target temperature T c and there is a difference from the shutdown temperature, turn off the thermal compensator and do not update the thermal compensation value; the closer it is to the shutdown temperature, the larger the thermal compensation value.

[0014] Furthermore, the set target temperature T c , according to the target temperature T c , the thermal compensation value T α , the obtained real-time temperature T inside the blood refrigerator a , the obtained real-time temperature T of the evaporator b and the relationship with the defrosting temperature to control the start and stop of the thermal compensator, so as to accurately control the temperature inside the refrigerator, specifically including:

[0015] If the sum of the obtained real-time temperature T inside the blood refrigerator a and the thermal compensation value T α is less than the set target temperature T c , then start the thermal compensator; if the sum of the obtained real-time temperature T inside the blood refrigerator a and the thermal compensation value T α is greater than or equal to the set target temperature T c , then turn off the thermal compensator;

[0016] If the sum of the obtained real-time temperature T of the evaporator b and the thermal compensation value T α is less than the set defrosting temperature, then start the thermal compensator; if the sum of the obtained real-time temperature T of the evaporator b and the thermal compensation value T α is greater than or equal to the set defrosting temperature, then turn off the thermal compensator.

[0017] Further, the thermal compensator is provided with a stop delay time, denoted as t. After the thermal compensator is started, if the real-time temperature T in the blood refrigerator obtained a and the thermal compensation value T α sum is greater than or equal to the set target temperature T c , and when the stop delay time t reaches the set value, the thermal compensator is turned off; if the real-time temperature T of the evaporator obtained b and the thermal compensation value T α sum is greater than or equal to the set defrosting temperature, and when the stop delay time t reaches the set value, the thermal compensator is turned off.

[0018] The present invention also provides a blood refrigerator thermal compensation device based on the above-mentioned blood refrigerator thermal compensation control method, including: a main controller, a defrosting probe, a refrigeration device, an evaporator, and a display respectively connected to the main controller, and further including: a temperature sensor, an evaporator sensor, and a thermal compensator connected to the main controller, wherein:

[0019] The temperature sensor is used to obtain the real-time temperature T in the blood refrigerator a ;

[0020] The evaporator sensor is embedded on the evaporator and is used to obtain the real-time temperature T of the evaporator in the blood refrigerator b ;

[0021] The defrosting probe is used to obtain the defrosting temperature and set the defrosting temperature to -18°C;

[0022] The main controller is used to update the thermal compensation value T in real time according to the obtained real-time temperature T in the blood refrigerator a and the obtained real-time temperature T of the evaporator b ; α ;

[0023] The thermal compensator is connected to the main controller, and the main controller controls the opening and closing of the thermal compensator; the main controller controls the start and stop of the thermal compensator according to the relationship between the target temperature T c , the thermal compensation value T α , the obtained real-time temperature T in the blood refrigerator a , the obtained real-time temperature T of the evaporator b and the defrosting temperature, so as to accurately control the temperature inside the refrigerator.

[0024] The present invention also provides a computer-readable storage medium, in which a computer instruction set is stored; when the computer instruction set is executed by a processor, the blood refrigerator thermal compensation control method as described above is implemented.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. The thermal compensation control method for the blood refrigerator provided by the present invention adopts a thermal compensation control method, which can accurately control the temperature inside the refrigerator and avoid the problem of damage to the quality of items such as food and medicine due to temperature fluctuations.

[0027] 2. The thermal compensation device for the blood refrigerator provided by the present invention has an adaptive ability, which can adjust the temperature control strategy in real time according to environmental parameters to ensure the accuracy and stability of temperature control.

[0028] For the above reasons, the present invention can be widely promoted in the fields of refrigerators and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order 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 or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a flowchart of the method of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the device of the present invention.

[0032] In the figure: 1. Thermal compensation device; 2. Defrosting probe; 3. Evaporator; 3-1. Evaporator tube sheet; 3-2. Evaporator copper tube; 3-3. Evaporator fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not require further discussion in subsequent figures.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0038] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be oriented "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning, and thus should not be construed as limiting the scope of protection of the present invention.

[0040] As Figure 1 shown, the present invention provides a method for controlling heat compensation of a blood refrigerator, including:

[0041] Obtaining the real-time temperature inside the blood refrigerator, denoted as T a ;

[0042] Obtaining the real-time temperature of the evaporator in the blood refrigerator, denoted as T b ;

[0043] Setting the defrosting temperature to -18 °C;

[0044] The main controller updates the heat compensation value T a in real time according to the real-time temperature T b obtained inside the blood refrigerator and the real-time temperature T α of the evaporator obtained;

[0045] Setting the target temperature T c , and the main controller controls the start and stop of the heat compensator according to the relationship between the target temperature T c , the heat compensation value T α , the real-time temperature T a obtained inside the blood refrigerator, the real-time temperature T b of the evaporator obtained, and the defrosting temperature, so as to accurately control the temperature inside the refrigerator.

[0046] In specific implementation, as a preferred implementation manner of the present invention, the real-time temperature T inside the blood refrigerator is obtained through a temperature sensora , the real-time temperature T of the evaporator is obtained through an evaporator sensor b , the main controller detects the temperature inside the blood refrigerator in real time through a temperature sensor and an evaporator sensor.

[0047] In specific implementation, as a preferred implementation manner of the present invention, the thermal compensation value T α is updated in real time according to the obtained real-time temperature T inside the blood refrigerator a and the obtained real-time temperature T of the evaporator b through a controller PID, specifically:

[0048] If the temperature of the blood refrigerator does not reach the set target temperature T c and there is a difference from the shutdown temperature, the thermal compensator is turned off and the thermal compensation value is not updated; the closer to the shutdown temperature, the larger the thermal compensation value.

[0049] In specific implementation, as a preferred implementation manner of the present invention, the set target temperature T c , according to the target temperature T c , the thermal compensation value T α , the obtained real-time temperature T inside the blood refrigerator a , the obtained real-time temperature T of the evaporator b and the relationship with the defrosting temperature to control the start and stop of the thermal compensator, so as to achieve precise control of the temperature inside the refrigerator, specifically including:

[0050] If the sum of the obtained real-time temperature T inside the blood refrigerator a and the thermal compensation value T α is less than the set target temperature T c , the thermal compensator is started; if the sum of the obtained real-time temperature T inside the blood refrigerator a and the thermal compensation value T α is greater than or equal to the set target temperature T c , the thermal compensator is turned off;

[0051] If the sum of the obtained real-time temperature T of the evaporator b and the thermal compensation value T α is less than the set defrosting temperature, the thermal compensator is started; if the sum of the obtained real-time temperature T of the evaporator b and the thermal compensation value T α is greater than or equal to the set defrosting temperature, the thermal compensator is turned off.

[0052] In specific implementation, as a preferred implementation manner of the present invention, the thermal compensator is provided with a stop delay time, denoted as t. After the thermal compensator is started, if the obtained real-time temperature T inside the blood refrigerator a and the thermal compensation value T αThe sum is greater than or equal to the set target temperature T c , and when the stop delay time t reaches the set value, the thermal compensator is turned off; if the real-time temperature T of the evaporator obtained b and the thermal compensation value T α The sum is greater than or equal to the set defrosting temperature, and when the stop delay time t reaches the set value, the thermal compensator is turned off.

[0053] Corresponding to the thermal compensation control method of the blood refrigerator in this application, the embodiment of the present invention also provides a thermal compensation device for a blood refrigerator, as shown in Figure 2 , including: a main controller, a defrosting probe, a refrigeration device, an evaporator and a display respectively connected to the main controller, and further including: a temperature sensor, an evaporator sensor and a thermal compensator connected to the main controller, wherein:

[0054] The temperature sensor is used to obtain the real-time temperature T inside the blood refrigerator a ;

[0055] The evaporator sensor is embedded on the evaporator and is used to obtain the real-time temperature T of the evaporator in the blood refrigerator b ;

[0056] The defrosting probe is used to obtain the defrosting temperature and set the defrosting temperature to -18°C;

[0057] The main controller is used to update the thermal compensation value T in real time according to the obtained real-time temperature T inside the blood refrigerator a and the obtained real-time temperature T of the evaporator b ; α ;

[0058] The thermal compensator is connected to the main controller, and the main controller controls the opening and closing of the thermal compensator; the main controller controls the start and stop of the thermal compensator according to the relationship between the target temperature T c , the thermal compensation value T α , the obtained real-time temperature T inside the blood refrigerator a , the obtained real-time temperature T of the evaporator b and the defrosting temperature, so as to achieve precise control of the temperature inside the refrigerator. The thermal compensator is usually applied to refrigerators with high precision and items stored are afraid of being frozen at low temperatures. For example, the storage temperature of blood in a blood refrigerator cannot be lower than 2°C. Therefore, the application of the thermal compensator in a blood refrigerator can prevent damage to blood samples caused by low temperature.

[0059] For the embodiment of the present invention, since it corresponds to the above embodiment, the description is relatively simple. For relevant similarities, please refer to the description in the above embodiment part, and details will not be repeated here.

[0060] An embodiment of the present application also discloses a computer-readable storage medium, in which a computer instruction set is stored. When the computer instruction set is executed by a processor, it implements the blood refrigerator thermal compensation control method provided in any of the above embodiments.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling heat compensation of a blood refrigerator Comprising: characterized in that, comprising: Obtain the real-time temperature inside the blood refrigerator, denoted as T a ; Obtain the real-time temperature of the evaporator in the blood refrigerator, denoted as T b ; Set the defrosting temperature to -18°C; The main controller updates the thermal compensation value T in real time according to the obtained real-time temperature T inside the blood refrigerator a and the obtained real-time temperature T of the evaporator b , and updates the thermal compensation value T in real time α ; The thermal compensation value T α is updated in real time by the controller PID according to the obtained real-time temperature T inside the blood refrigerator a and the obtained real-time temperature T of the evaporator b , specifically as follows: If the temperature of the blood refrigerator does not reach the set target temperature T c and there is a difference from the shutdown temperature, turn off the heat compensator and do not update the heat compensation value; the closer it is to the shutdown temperature, the greater the heat compensation value; Set the target temperature T c , the main controller based on the target temperature T c , the thermal compensation value T α , the real-time temperature T inside the blood refrigerator obtained a , the real-time temperature T of the evaporator obtained b and the relationship of the defrosting temperature to control the start and stop of the thermal compensator, so as to achieve precise control of the temperature inside the refrigerator, specifically including: If the real-time temperature T in the blood refrigerator obtained a and the heat compensation value T α sum is less than the set target temperature T c , then start the heat compensator; if the real-time temperature T in the blood refrigerator obtained a and the heat compensation value T α sum is greater than or equal to the set target temperature T c , then turn off the heat compensator; If the sum of the real-time temperature T of the evaporator obtained b and the thermal compensation value T α is less than the set defrosting temperature, the thermal compensator is started; if the sum of the real-time temperature T of the evaporator obtained b and the thermal compensation value T α is greater than or equal to the set defrosting temperature, the thermal compensator is turned off.

2. The heat compensation control method for a blood refrigerator according to claim 1, wherein Obtain the real-time temperature T inside the blood refrigerator through a temperature sensor a , obtain the real-time temperature T of the evaporator through an evaporator sensor b , the main controller detects the temperature inside the blood refrigerator in real time through the temperature sensor and the evaporator sensor.

3. The heat compensation control method of the blood refrigerator according to claim 1, characterized in that, The thermal compensator is provided with a stop delay time, denoted as t. After the thermal compensator is started, if the real-time temperature T in the blood refrigerator obtained a and the thermal compensation value T α sum is greater than or equal to the set target temperature T c , and when the stop delay time t reaches the set value, the thermal compensator is turned off; if the real-time temperature T of the evaporator obtained b and the thermal compensation value T α sum is greater than or equal to the set defrosting temperature, and when the stop delay time t reaches the set value, the thermal compensator is turned off.

4. A blood refrigerator thermal compensation device based on the blood refrigerator thermal compensation control method described in any one of claims 1-3, comprising: A main controller, a defrosting probe, a refrigeration device, an evaporator, and a display respectively connected to the main controller, characterized in that it further comprises: a temperature sensor, an evaporator sensor, and a thermal compensator connected to the main controller, wherein: The temperature sensor is used to obtain the real-time temperature T inside the blood refrigerator a ; The evaporator sensor is embedded in the evaporator and is used to obtain the real-time temperature T of the evaporator in the blood refrigerator b ; The defrosting probe is used to obtain the defrosting temperature and set the defrosting temperature to -18°C; The main controller is configured to update the thermal compensation value T in real time according to the acquired real-time temperature T inside the blood refrigerator a and the acquired real-time temperature T of the evaporator b , α ; The thermal compensator is connected to the main controller, and the main controller controls the opening and closing of the thermal compensator; the main controller controls the start and stop of the thermal compensator according to the relationship between the target temperature T c , the thermal compensation value T α , the real-time temperature T a inside the blood refrigerator obtained, the real-time temperature T b of the evaporator obtained, and the defrosting temperature, so as to accurately control the temperature inside the refrigerator.

5. A computer-readable storage medium, characterized in that, A computer instruction set is stored in the computer-readable storage medium; when the computer instruction set is executed by a processor, it implements the thermal compensation control method for a blood refrigerator as described in any one of claims 1-3.

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