A freezer capable of measuring frozen material temperature in real time

Abstract

The present invention discloses a freezer capable of measuring the temperature of frozen materials in real time, comprising a freezer frame and a frozen material discharging lifting frame, and also comprising a frozen flat plate; the frozen material discharging lifting frame is connected with a lifting crossbeam; a traction frame is arranged on one side of the frozen flat plate; a manual operating valve is connected to the freezer frame; one end of the manual operating valve is connected with a hydraulic oil pipe; a liquid supply hose and a return air hose are connected to the air port at the rear of the frozen flat plate; the return air hose is connected with a return air manifold; the liquid supply hose is connected with the liquid supply manifold; a refrigerant liquid port is provided on the liquid supply manifold; a refrigerant return air port is provided on the return air manifold; a temperature probe is installed at the bottom of the freezer frame, a protective cover is installed on the temperature probe, a spring is arranged at a position connected to the freezer frame below the protective cover, and the spring is welded and fixed to the freezer frame. The present invention can quickly freeze food; obtain food temperature in real time through a variety of methods; set the ambient temperature in the freezer and the expected temperature inside the food through a human-computer interaction interface; and improve freezing efficiency.

Description

Technical Field

[0001] The invention relates to a refrigerator capable of measuring the temperature of frozen materials in real time, belonging to the technical field of low-temperature freezing. Background Art

[0002] Since proteins are not easily denatured in low temperature environments, the activity of biological enzymes is reduced, and the growth and reproduction of most microorganisms are inhibited, low temperature is a necessary environment for preserving food materials, tissue structures and nutritional components. Our daily food to be processed, food to be transported over long distances, and food to be stored for a long time all require low temperature preservation.

[0003] In a typical storage freezer, food items are loaded into racks or trays and manually removed from the freezer's cold environment, which can cause freezer injury to operators and reduce efficiency in accessing food items.

[0004] In the prior art, the food is frozen for a sufficiently long period of time to be considered to have reached the freezing temperature, but the specific temperature inside the food is difficult to control, which is time-consuming and energy-consuming, and increases the freezing cost of the food.

[0005] In summary, how to improve the existing refrigeration device to clarify the freezing time and improve the efficiency is a problem that the technicians in this field need to solve. Summary of the invention

[0006] In view of the problems existing in the above-mentioned prior art, the present invention provides a refrigerator which can measure the temperature of frozen materials in real time, thereby solving the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a refrigerator that can measure the temperature of frozen materials in real time, including a refrigerator frame and a frozen material discharge lifting frame, and also including a frozen plate evenly arranged on the refrigerator frame; the frozen material discharge lifting frame is connected with a lifting beam; the lifting beam controls its up and down movement through a lifting upright assembly; the lifting upright assembly is provided with a lifting beam on each side; a traction frame is provided on one side of the frozen plate; a manual operating valve is connected to the refrigerator frame; one end of the manual operating valve is connected to a hydraulic oil pipe; a liquid supply hose and a return air hose are connected to the air port at the rear of the frozen plate; thereby forming a refrigeration cycle; the return air hose is connected to a return air manifold; the return air manifold is fixed at the rear of the frame; the liquid supply hose is connected to a liquid supply manifold; the liquid supply manifold is fixed at the rear of the frame; a refrigerant liquid port is opened on the liquid supply manifold; a refrigerant return air port is opened on the return air manifold; a temperature probe is installed at the bottom of the refrigerator frame.

[0008] Furthermore, a protective cover is installed on the temperature probe; a spring is arranged at a position below the protective cover where it is connected to the freezer frame; and the spring is welded and fixed to the freezer frame.

[0009] Furthermore, an opening is provided below the frozen material discharging lifting frame for the temperature probe to pass through when the frozen material discharging lifting frame descends.

[0010] Furthermore, the freezing plate is pulled and pressed by a horizontally mounted oil cylinder; the horizontally mounted oil cylinder pulls and opens each freezing plate, and the vertical oil cylinders on both sides lift the freezing discharge lifting frame and the frozen products thereon by lifting the cross beam.

[0011] Furthermore, the protective sleeve adopts a conical design, which guides the temperature probe to pass through the lifting beam and insert into the frozen material.

[0012] Furthermore, the temperature probe uses a microprocessor and peripheral circuits to build a temperature measurement and temperature control system; the temperature measurement and temperature control system includes a microprocessor, a temperature acquisition module, a temperature control module, a human-computer interaction module and a warning module;

[0013] The temperature acquisition module is mainly composed of a temperature probe, which is in close contact with the inside of the frozen material, and the signal is connected to the microprocessor to collect the real internal temperature of the frozen material;

[0014] The temperature control module includes a refrigerator, which is injected with refrigerant, and the microprocessor controls different signals to control the output power of the refrigerator to achieve temperature control changes in the refrigerator compartment;

[0015] The human-computer interaction mode includes a capacitive touch display screen, a power switch and an integrated circuit, and the temperature probe signal is controlled by a microprocessor programming to display the temperature parameters and status information on the capacitive touch display screen;

[0016] The warning module is a light emitting diode and a buzzer, which interact with the microprocessor to generate signals. When the system does not work properly or the temperature in the freezer compartment is inappropriate for a long time, an audible and visual alarm is triggered. When the temperature acquisition module detects that the internal temperature of the frozen material has reached a temperature within a predetermined error range, an audible and visual prompt indicates that the freezing is complete.

[0017] Furthermore, the temperature measurement and temperature control system microprocessor uses a discrete PID control algorithm to control the temperature in the refrigeration compartment;

[0018] The discrete PID control algorithm uses feedback to detect the deviation signal and controls the controlled quantity through the deviation signal. The controller itself is the sum of the three links of proportion, integration and differentiation;

[0019] Consider a specific time t, when the input is rin(t) and the output is rout(t), then the error can be calculated as err(t) = rin(t) - rout(t);

[0020] The basic control law of PID can be expressed as the following formula:

[0021]

[0022] Where Kp is the proportional band, TI is the integral time, and TD is the differential time;

[0023] Since the microprocessor collects temperature in discrete time, the present invention discretizes the PID algorithm.

[0024] Furthermore, the discrete PID control algorithm assumes that the system sampling period is T, and assumes that the Kth sampling period is checked. The deviation at this time is expressed as err(K)=rin(K)-rout(K), then the integral is expressed as: err(K)+err(K+1)+..., and the differential is expressed as: (err(K)-err(K-1)) / T; when sampling for the Kth time, the offline form of the PID algorithm is expressed as:

[0025]

[0026] Recorded as

[0027] U(k)=k p err(k)+K i ∑err(k)+K d (err(k)-err(k-1))

[0028] Then the previous moment, that is, k-1 sampling periods, is expressed as:

[0029] U(k-1)=k p err(k-1)+K i ∑err(k-1)+K d (err(k-1)-err(k-2))

[0030] Subtracting the formula for the k-1 sampling period from the formula for the k-th sampling period gives the incremental PID algorithm:

[0031] ΔU(k)=k p (err(k)-err(k-1))+K i err(k)+K d (err(k)-2err(k-1)+err(k-2))

[0032] And U(k)=U(k-1)+ΔU(k)

[0033] The specific application of this discrete PID control algorithm is:

[0034] Set err(k) as the difference between the predetermined frozen material temperature and the real-time sampled temperature in the freezer compartment, and the ΔU(k) ​​obtained after the discrete PID control algorithm is the degree of deviation of the real-time sampled temperature in the freezer compartment from the predetermined frozen material temperature; loading this onto the microprocessor's control signal for the output power of the freezer, the temperature of the frozen material in the freezer compartment can be precisely controlled.

[0035] The beneficial effects of the present invention are as follows: the present invention can report the temperature in the freezer compartment, the frozen material temperature, and the predetermined frozen material temperature in real time, and can change and set relevant parameters in real time on the industrial host computer. The Internet of Things module can select two connection modes: local area network and extranet. In the local area network, one host computer can communicate with multiple devices, and multiple devices report relevant parameters in real time. The technicians only need to be in the studio to monitor the status of multiple devices in real time; in the extranet, each device needs to be connected to the Internet, and different networking methods can be used, such as traffic cards, WiFi, etc. The technicians can obtain the status of the device and issue commands anywhere there is a network signal. The food can be quickly frozen, which is beneficial to the subsequent storage of the food; the temperature inside the food can be obtained in real time in a variety of ways; the ambient temperature in the freezer and the expected temperature inside the food can be set through the human-computer interaction interface; the food can be quickly frozen and the freezing efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall rear three-dimensional structure of the present invention;

[0038] Figure 3 It is a schematic diagram of the structure of the temperature acquisition module of the present invention;

[0039] Figure 4 This is a schematic enlarged view of the bottom structure of the frozen material discharging lifting frame of the present invention;

[0040] Figure 5 It is a partial structural schematic diagram of the temperature probe of the present invention;

[0041] Figure 6 It is a schematic front view of the overall structure of the present invention;

[0042] Figure 7 It is a schematic side view of the overall structure of the present invention;

[0043] Figure 8 It is a schematic top view of the overall structure of the present invention;

[0044] Fig. 9 It is a schematic diagram of the connection structure of the traction frame part of the present invention;

[0045] Fig.10 It is the functional block diagram of the discrete PID algorithm of the present invention;

[0046] Fig.11 This is a functional flow chart of the temperature measurement and temperature control system of the present invention.

[0047] In the figure: 1. freezer frame, 2. freezing plate, 3. freezing discharge lifting frame, 4. lifting beam, 5. lifting pole assembly, 6. horizontal cylinder, 7. traction frame, 8. manual operation valve assembly, 9. hydraulic oil pipe, 10. liquid supply hose, 11. return air hose, 12. return air manifold, 13. liquid supply manifold, 14. refrigerant liquid supply port, 15. refrigerant return air port, 16. protective cover, 17. temperature probe, 18. spring, 19. frozen material, 20. vertical cylinder. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0050] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, a freezer capable of measuring the temperature of frozen materials in real time comprises a freezer frame 1 and a frozen material discharging lifting frame 3, characterized in that it also comprises a frozen plate 2 evenly arranged and mounted on the freezer frame 1; the frozen material discharging lifting frame 3 is connected with a lifting beam 4; the lifting beam 4 is controlled to move up and down by a lifting upright bar assembly 5; a lifting beam 4 is arranged on each side of the lifting upright bar assembly 5; a traction frame 7 is arranged on one side of the frozen plate 2; refer to Fig. 9As shown, the traction frame 7 is towed by bolt connection, and the freezer frame 1 is connected with a manually operated valve assembly 8; one end of the manually operated valve assembly 8 is connected with a hydraulic oil pipe 9; the air port at the rear of the freezing plate 2 is connected with a liquid supply hose 10 and an air return hose 11; thereby forming a refrigeration cycle; the air return hose 11 is connected with a return air collection pipe 12; the return air collection pipe 12 is fixed at the rear of the frame 1; the liquid supply hose 10 is connected with a liquid supply collection pipe 13; the liquid supply collection pipe 13 is fixed at the rear of the frame 1; a refrigerant liquid supply port 14 is opened on the liquid supply collection pipe 13; a refrigerant air return port 15 is opened on the return air collection pipe 12; a temperature probe 17 is installed at the bottom of the freezer frame 1.

[0051] Reference Figure 3 and Figure 5 As shown, a protective cover 16 is installed on the temperature probe 17 ; a spring 18 is provided at a position below the protective cover 16 where it is connected to the freezer frame 1 ; and the spring 18 is fixed to the freezer frame 1 by welding.

[0052] Reference Figure 4 As shown, an opening is provided below the frozen material discharging lifting frame 3 for the temperature probe 17 to pass through when the frozen material discharging lifting frame 3 is lowered.

[0053] Continue to refer to Figure 1 The freezing plate 2 is pulled and pressed by the horizontal cylinder 6; the horizontal cylinder 6 pulls and pulls apart each freezing plate 2, and the vertical cylinders (20) on both sides lift the freezing discharge lifting frame 3 and the frozen material 19 thereon by lifting the cross beam 4.

[0054] Continue to refer to Figure 4 The protective sleeve 16 is of conical design, which guides the temperature probe 17 to pass through the lifting beam 4 and insert into the frozen material 19.

[0055] In this embodiment, the temperature probe 17 preferably uses a microprocessor and peripheral circuits to build a temperature measurement and temperature control system; the temperature measurement and temperature control system includes a microprocessor, a temperature acquisition module, a temperature control module, a human-computer interaction module and a warning module;

[0056] In this embodiment, the temperature acquisition module is preferably a temperature probe, which is in close contact with the inside of the frozen material, and the signal is connected to the microprocessor to collect the real internal temperature of the frozen material;

[0057] In this embodiment, the temperature control module includes a refrigerator, which is injected with refrigerant, and the microprocessor controls different signals to control the output power of the refrigerator, so as to achieve temperature control changes in the refrigerator compartment;

[0058] In this embodiment, the human-computer interaction mode includes a capacitive touch display screen, a power switch and an integrated circuit, and the temperature probe 17 signal is controlled by a microprocessor programming to display the temperature parameters and status information on the capacitive touch display screen;

[0059] Preferably, the warning module of this embodiment is a light emitting diode and a buzzer, which interact with the microprocessor to generate signals. When the system is not working properly, an audible and visual alarm will be triggered when the temperature in the freezer compartment is inappropriate for a long time. When the temperature acquisition module detects that the internal temperature of the frozen material reaches a temperature within a predetermined error range, an audible and visual prompt will be given to indicate that the freezing is complete.

[0060] Preferably, in this embodiment, the microprocessor of the temperature measurement and temperature control system uses a discrete PID control algorithm to control the temperature in the refrigeration compartment;

[0061] Reference Fig.10 and Fig.11 As shown in the figure, the discrete PID control algorithm uses feedback to detect the deviation signal and controls the controlled quantity through the deviation signal. The controller itself is the sum of the three links of proportion, integration and differentiation;

[0062] Consider a specific time t, when the input is rin(t) and the output is rout(t), then the error can be calculated as err(t) = rin(t) - rout(t);

[0063] The basic control law of PID can be expressed as the following formula:

[0064]

[0065] Where Kp is the proportional band, TI is the integral time, and TD is the differential time;

[0066] Since the microprocessor collects temperature in discrete time, the present invention discretizes the PID algorithm. The functions of the above three parameters are as follows: Proportion is used to react to the deviation of the system, so as long as there is a deviation, the proportion will work. Integration is mainly used to eliminate the static error that still exists between the input and output after the system is stable, and the static error of the system is offset by the accumulation of deviations. Differentiation is to react to the changing trend of the deviation, and advance adjustment is achieved according to the changing trend of the deviation to improve the reaction speed.

[0067] Discrete PID control algorithm Assume that the system sampling period is T, and check the Kth sampling period. The deviation at this time is expressed as err(K)=rin(K)-rout(K), then the integral is expressed as: err(K)+err(K+1)+..., and the differential is expressed as: (err(K)-err(K-1)) / T; when sampling for the Kth time, the offline form of the PID algorithm is expressed as:

[0068]

[0069] Recorded as

[0070] U(k)=k p err(k)+K i ∑err(k)+K d (err(k)-err(k-1))

[0071] Then the previous moment, that is, k-1 sampling periods, is expressed as:

[0072] U(k-1)=k p err(k-1)+K i ∑err(k-1)+K d (err(k-1)-err(k-2))

[0073] Subtracting the formula for the k-1 sampling period from the formula for the k-th sampling period gives the incremental PID algorithm:

[0074] ΔU(k)=k p (err(k)-err(k-1))+K i err(k)+K d (err(k)-2err(k-1)+err(k-2))

[0075] And U(k)=U(k-1)+ΔU(k)

[0076] The specific application of this discrete PID control algorithm is:

[0077] Set err(k) as the difference between the predetermined frozen material temperature and the real-time sampled temperature in the freezer compartment, and the ΔU(k) ​​obtained after the discrete PID control algorithm is the degree of deviation of the real-time sampled temperature in the freezer compartment from the predetermined frozen material temperature; loading this onto the microprocessor's control signal for the output power of the freezer, the temperature of the frozen material in the freezer compartment can be precisely controlled.

[0078] The beneficial effects of this discrete PID control algorithm are: the system can respond quickly, ensuring that the frozen material can quickly reach the predetermined temperature in a very short time and stably maintain near the set parameters.

[0079] This system uses the Internet of Things module to report the temperature in the refrigeration compartment, the frozen material temperature in real time, and has remote monitoring and control functions.

[0080] The present invention can report the temperature in the freezer cabin, the frozen material temperature, and the predetermined frozen material temperature in real time, and can change and set relevant parameters in real time on the industrial host computer. The Internet of Things module can select two connection modes: local area network and extranet. In the local area network, one host computer can communicate with multiple devices, and multiple devices report relevant parameters in real time. The technicians only need to be in the studio to monitor the status of multiple devices in real time; in the extranet, each device needs to be connected to the Internet, and different networking methods can be used, such as traffic cards, WiFi, etc. The technicians can obtain the status of the device and issue commands anywhere there is a network signal. In addition, the food can be quickly frozen, which is beneficial to the subsequent storage of the food; the temperature in the food can be obtained in real time in a variety of ways; the ambient temperature in the freezer and the expected temperature inside the food can be set through the human-computer interaction interface; the food can be quickly frozen and the freezing efficiency can be improved.

[0081] The present invention is an industrial-grade product, suitable for use in food processing plants, etc. The technical solution described in the embodiment of the invention can be applied to any place where a refrigerator capable of real-time temperature measurement is required.

[0082] The worker puts the frozen material 19 into the freezing plate 2, and the temperature probe 17 is inserted into the frozen material 19 to monitor the temperature and transmit the temperature information to the worker. When the temperature reaches the required temperature of the frozen material 19, the worker operates the lifting rack to take out the frozen material 19. Then a new round of frozen material 19 is put in, and so on. The present invention can accurately measure the temperature of the frozen material 19, so that the worker can take out the frozen material 19 in time, improve work efficiency and save resources.

[0083] Then, the preset freezing temperature of the frozen material is set through the human-computer interaction interface, the reachable temperature range in the freezing chamber is set, and the error accuracy between the preset temperature and the actual frozen material temperature is set, and then the freezer can be started to start the quick freezing process. When the temperature probe detects that the frozen material temperature in the freezing chamber reaches the error accuracy between the preset temperature and the actual frozen material temperature, the alarm module prompts.

[0084] Working principle: The freezing plate 2 is matched with a compressor, a condenser, and other auxiliary equipment to form a closed refrigeration system. The refrigerant enters the freezing plate 2 from the liquid supply pipe, causing the surface and surrounding of the freezing plate 2 to be low in temperature, absorbing the heat of the frozen objects between the freezing plates 2 and evaporating, thereby achieving the purpose of freezing. After compaction, the frozen products are poured between each freezing plate 2, and then refrigeration is started. The freezing time is about 3-4 hours. After freezing, hot air defrosting is performed to melt the surface of the frozen products and the surface of the freezing plate 2; the vertical oil cylinders (20) on both sides lower the freezing discharge lifting frame 3 by lifting the cross beam 4 and the deadweight of the freezing discharge lifting frame 3. After it is lowered into place, the horizontal oil cylinder 6 once again compacts each freezing plate 2 to start processing the next batch of frozen products, and this cycle repeats. A temperature probe 17 with a protective cover 16 is installed at the bottom. When freezing the material 19, the temperature probe 17 will be inserted into the frozen material 19 to measure the center temperature of the frozen material 19 and feedback to the staff, so that the freezing degree of the frozen material 19 can be monitored in real time.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A freezer capable of measuring the temperature of frozen material in real time, comprising a freezer frame (1) and a frozen material discharging lifting frame (3), characterized in that: The invention also comprises a freezing plate (2) mounted on the freezer frame (1) and arranged evenly; the freezing material discharging lifting frame (3) is connected to a lifting beam (4); the lifting beam (4) is controlled to move up and down by a lifting pole assembly (5); a lifting beam (4) is arranged on each side of the lifting pole assembly (5); a traction frame (7) is arranged on one side of the freezing plate (2); a manual operation valve assembly (8) is connected to the freezing machine frame (1); one end of the manual operation valve assembly (8) is connected to a hydraulic oil pipe (9); a gas cylinder (14) is arranged at the rear of the freezing plate (2); a manual operation valve assembly (8) is arranged on the rear side ... A liquid supply hose (10) and an air return hose (11) are connected at the opening of the refrigerator frame (1); thereby forming a refrigeration cycle; the air return hose (11) is connected to an air return header (12); the air return header (12) is fixed at the rear of the frame (1); the liquid supply hose (10) is connected to a liquid supply header (13); the liquid supply header (13) is fixed at the rear of the frame (1); a refrigerant liquid supply port (14) is provided on the liquid supply header (13); a refrigerant air return port (15) is provided on the air return header (12); a temperature probe (17) is installed at the bottom of the refrigerator frame (1); The temperature probe (17) uses a microprocessor and peripheral circuits to build a temperature measurement and temperature control system; the temperature measurement and temperature control system includes a microprocessor, a temperature acquisition module, a temperature control module, a human-computer interaction module and a warning module; The temperature acquisition module is mainly composed of a temperature probe, which is in close contact with the inside of the frozen material, and the signal is connected to the microprocessor to collect the real internal temperature of the frozen material; The temperature control module includes a refrigerator, which is injected with refrigerant, and the microprocessor controls different signals to control the output power of the refrigerator to achieve temperature control changes in the refrigerator compartment; The human-computer interaction module comprises a capacitive touch display screen, a power switch and an integrated circuit, and the temperature probe (17) signal is controlled by a microprocessor programming to display temperature parameters and status information on the capacitive touch display screen; The warning module is a light emitting diode and a buzzer, which interact with the microprocessor to generate signals. When the system does not work properly and the temperature in the freezer compartment is inappropriate for a long time, an audible and visual alarm is generated. When the temperature acquisition module detects that the temperature inside the frozen material reaches a temperature within a predetermined error range, an audible and visual prompt indicates that the freezing is complete. The temperature measurement and control system microprocessor uses a discrete PID control algorithm to control the temperature in the refrigeration compartment; The discrete PID control algorithm uses feedback to detect the deviation signal and controls the controlled quantity through the deviation signal; and the controller itself is the sum of the three links of proportion, integration and differentiation; Consider a specific time t, when the input is rin(t) and the output is rout(t), then the error can be calculated as err(t) = rin(t) - rout(t); The basic control law of PID can be expressed as the following formula: Where Kp is the proportional band, TI is the integral time, and TD is the differential time; Since the microprocessor collects temperature at discrete time, the utility model discretizes the PID algorithm; The discrete PID control algorithm assumes that the system sampling period is T, and the Kth sampling period is checked. The deviation at this time is expressed as err(K)=rin(K)-rout(K), then the integral is expressed as: err(K)+err(K+1)+..., and the differential is expressed as: (err(K)-err(K-1)) / T; when sampling for the Kth time, the offline form of the PID algorithm is expressed as: Denoted as U(k)=k p err(k)+K i ∑err(k)+K d (err(k)-err(k-1)) Then the previous moment, that is, k-1 sampling periods, is expressed as: U(k-1)=k p err(k-1)+K i ∑err(k-1)+K d (err(k-1)-err(k-2)) Subtracting the formula for the k-1 sampling period from the formula for the k-th sampling period gives the incremental PID algorithm: ΔU(k)=k p (err(k)-err(k-1))+K i err(k)+K d (err(k)-2err(k-1)+err(k-2)) And U(k)=U(k-1)+ΔU(k) The specific application of this discrete PID control algorithm is: Set err(k) as the difference between the predetermined frozen material temperature and the real-time sampled temperature in the freezer compartment, and the ΔU(k) ​​obtained after the discrete PID control algorithm is the degree of deviation of the real-time sampled temperature in the freezer compartment from the predetermined frozen material temperature; loading this onto the microprocessor's control signal for the output power of the freezer, the temperature of the frozen material in the freezer compartment can be precisely controlled.

2. A refrigerator capable of measuring the temperature of frozen material in real time according to claim 1, characterized in that: A protective cover (16) is installed on the temperature probe (17); a spring (18) is provided at a position below the protective cover (16) where it is connected to the freezer frame (1); and the spring (18) is fixed to the freezer frame (1) by welding.

3. A refrigerator capable of measuring the temperature of frozen material in real time according to claim 1, characterized in that: An opening is provided below the frozen material discharging lifting frame (3) for the temperature probe (17) to pass through when the frame is lowered.

4. A refrigerator capable of measuring the temperature of frozen material in real time according to claim 1, characterized in that: The freezing plate (2) is pulled and pressed by a horizontal oil cylinder (6); the horizontal oil cylinder (6) pulls and pulls apart each freezing plate (2), and the vertical oil cylinders (20) on both sides lift the freezing discharge lifting frame (3) and the frozen material (19) thereon by lifting the cross beam (4).

5. A refrigerator capable of measuring the temperature of frozen material in real time according to claim 2, characterized in that: The protective cover (16) is of conical design, which guides the temperature probe (17) to pass through the lifting beam (4) and insert into the frozen material (19).

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