Control method of refrigeration equipment

Abstract

The present invention provides a control method for a refrigeration device. The control method includes: obtaining an ice-taking request, obtaining a first duration t1 between the moment T0 when the ice-taking request is obtained and the previous door-closure moment T1 adjacent to this moment T0, and judging whether the aforementioned first duration t1 is less than a first preset duration t1'; if t1 < t1', further obtaining the number of door-opening times N of the refrigeration device within a duration t2 before the moment T1, and judging whether N is greater than a first preset number of door-opening times N1; if N > N1, controlling the working circuit to be disconnected for a preset recovery duration te, and then controlling the working circuit to be connected; and running a normal ice-taking program. The control method of the present invention can effectively prevent the normal ice-taking mode from being disturbed. Especially in the case of frequent door-opening and closing caused by misoperation or experiments, it can effectively avoid damage to the ice-crushing motor of the ice-making module or even the entire working circuit.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and particularly relates to a control method suitable for ice taking of refrigeration equipment. Technical Background

[0002] At present, for refrigeration equipment with a door-type ice maker, when the "whole ice" or "crushed ice" function button is pressed on the display board, it will enter the "whole ice" state and the "crushed ice" state respectively. Among them, the realization of the whole ice and crushed ice functions is achieved according to the forward and reverse rotation control of the ice crusher; the ice crusher rotates clockwise for crushed ice; and rotates counterclockwise for whole ice. For the opening and closing door control of the ice crusher part of the refrigerator door body, currently there is only a simple way that opening the door stops the ice crusher, and closing the door can continue to start the ice crushing motor to take ice, which easily causes damage to the ice crushing motor and even the drive circuit of the ice crushing motor. Summary of the Invention

[0003] The present invention provides a control method suitable for ice taking of refrigeration equipment to solve one of the above problems.

[0004] In order to achieve the above object, the technical solution provided by the present invention is as follows:

[0005] A control method for a refrigeration equipment, used for an ice taking program, wherein,

[0006] Obtain an ice taking request, and confirm that the door body of the refrigeration equipment is in a closed state;

[0007] Obtain the first duration t1 between the moment T0 when the ice taking request is located and the previous closing moment T1 of the adjacent moment T0, and judge whether the first duration t1 is less than the first preset duration t1';

[0008] If t1 < t1', then further obtain the number of door opening times N of the refrigeration equipment within the duration t2 before the moment T1, and judge whether N is greater than the first preset number of door opening times N1;

[0009] If N > N1, control the working circuit to be disconnected for a preset recovery duration te, and then control to connect the working circuit to run the normal ice taking program;

[0010] Further, if t1 ≥ t1', then run the normal ice taking program.

[0011] Further, judge whether the above first duration t1 is greater than the second preset duration t2', wherein, t2' < t1';

[0012] If t1 > t2', then further obtain the number of door opening times N of the refrigeration equipment within the duration t2 before the moment T1.

[0013] Further, if t1 ≤ t2′, obtain the number of door openings N within a duration of t2 before time T2, where T2 is the time (t2′ - t1) before time T1; then determine whether N is greater than the first preset number of door openings N1.

[0014] Further, if N ≤ N1; delay for the first delay duration t1″, and then run the normal ice-taking program.

[0015] Further, after the working circuit is disconnected for a preset recovery duration te, the number of door openings N within a duration of t2 is cleared.

[0016] Further, before determining whether "the first duration t1 is less than the first preset duration t1′", obtain the cumulative door opening time t within a duration of t0 before time T1, and determine whether t is greater than the third preset duration t3′;

[0017] If t < t3′, then further determine whether t1 is less than the first preset duration t1′.

[0018] Further, if t ≥ t3′, then determine that the ice-making module is in an abnormal use state, and control the working circuit to be disconnected.

[0019] Further, when it is determined that the ice-making module is in an abnormal use state, after a fourth preset duration t4′, connect the working circuit.

[0020] Further, when it is determined that the ice-making module is in an abnormal use state, detect the temperature Te of the ice-making module until Te ≤ the preset temperature Te0, and then connect the working circuit.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The control method of the refrigeration device of the present invention can effectively prevent disturbing the normal ice-taking mode by monitoring the number of door openings within a duration of t1 before the ice-taking program and within a duration of t2 before closing the door. Especially in the case of frequent opening and closing of the door caused by misoperation or experiments, it can effectively avoid damage to the ice-crushing motor of the ice-making module and even the entire working circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a flowchart of an embodiment of the control method of the refrigeration device of the present invention.

[0023] Figure 2 is a flowchart of another embodiment of the control method of the refrigeration device of the present invention.

[0024] Figure 3 is a flowchart of another embodiment of the control method of the refrigeration device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] To enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention relates to a control method for a refrigeration device, which is used for an ice-taking program, such as Figures 1 to 3 is a flowchart of a preferred embodiment of the present invention. The control method of the refrigeration device of the present invention is realized by an ice-making module on the door body of the refrigeration device. Among them, the ice-making module is arranged on the door body in the refrigeration compartment of the refrigeration device. Specifically, the ice-making module includes a working circuit for ice-taking operation, an opening sampling unit for monitoring the number of door openings, a control unit communicatively connected to the working circuit and the opening sampling unit, and a temperature sensor for detecting the temperature of the ice-making module. The working circuit includes a main switch K1 and K2 for controlling ice crushing operation and K3 for controlling whole ice operation respectively.

[0027] Generally, when the user needs to perform an ice-taking operation and the door body of the refrigeration device is in a long-term closed state, at this time, the ice-making module is in a normal use state. Press the K2 or K3 button, and the working circuit of the ice-making module drives the crushed ice or whole ice to be discharged through the forward or reverse rotation of the motor. This process is a normal ice-taking program.

[0028] If the door body of the refrigeration device has been opened within a period of time before the ice-taking operation, especially when the number of door openings is relatively frequent in a short period of time, it will affect the normal operation of the entire working circuit. In severe cases, it will damage the motor of the working circuit or even the entire working circuit. Therefore, the present invention provides a control method for protecting the working circuit.

[0029] Specifically, the control method includes:

[0030] Obtain an ice-taking request and confirm that the door body of the refrigeration device is in a closed state;

[0031] Obtain the first duration t1 between the moment T0 when the ice-taking request is located and the previous closing moment T1 adjacent to this moment T0, and judge whether the first duration t1 is less than the first preset duration t1';

[0032] If t1 < t1', further obtain the number of door openings N of the refrigeration device within the t2 duration before the moment T1, and judge whether N is greater than the first preset number of door openings N1;

[0033] If N > N1, control the working circuit to disconnect for a preset recovery duration te, and then control the working circuit to be turned on to run the normal ice-making program;

[0034] The control method of the present invention can effectively prevent disturbing the normal ice-making mode by monitoring the number of door openings within a duration t1 before the ice-making program and a duration t2 before closing the door. Especially in the case of frequent door opening and closing caused by misoperation or experiments, it can effectively avoid damage to the ice-crushing motor of the ice-making module or even the entire working circuit.

[0035] Specifically, after obtaining the ice-making request, first, it is necessary to confirm whether the door of the refrigeration device is in the closed state. If the door is not in the closed state at this time, then control the working circuit not to work, that is, the normal ice-making program cannot be run; if the door is in the closed state, then continue to obtain the times T0 and T1 respectively, and obtain the cumulative door opening time t within a duration t0 before the time T1 to determine the state of the refrigeration device when the ice-making request is obtained.

[0036] Specifically, determine whether t is greater than the third preset duration t3'. It can be understood that the third preset duration t3' is used as the boundary condition for determining whether the ice in the refrigeration module is in a normal use state. If t ≥ t3', then it is determined that the ice-making module is in an abnormal use state. At this time, because the door opening time is too long, the temperature in the refrigeration chamber will rise, and the ice in the ice-making module does not meet the requirements for being taken out. Therefore, control the working circuit to disconnect to avoid the ice taken out not meeting the requirements.

[0037] As a preferred embodiment of the present invention, in combination with Figure 2 As shown, when it is determined that the ice-making module is in an abnormal use state, after a fourth preset duration t4', the working circuit is turned on. Wherein, the fourth preset duration t4' is the duration after the time T0. In this embodiment, the time after the fourth preset duration t4' is T3, that is, when the cumulative door opening time t within a duration t0 before the time T3 is less than the third preset duration t3', it is determined that the refrigeration module meets the requirements for ice-making, and then the working circuit is turned on to enter the next judgment program.

[0038] As a preferred embodiment of the present invention, in combination with Figure 3 As shown, when it is determined that the ice-making module is in an abnormal use state, detect the temperature Te of the ice-making module until Te ≤ the preset temperature Te0, and then turn on the working circuit. In this embodiment, a temperature sensor is used to monitor the temperature Te of the refrigeration module in real time. The temperature of the refrigeration module decreases as the temperature in the refrigeration chamber decreases. When Te ≤ the preset temperature Te0, it is determined that the ice in the refrigeration module meets the requirements for being taken out. At this time, turn on the working circuit to enter the next judgment program.

[0039] Further, if t < t3', then further determine whether the first duration t1 between T0 and T1 is less than the first preset duration t1'. The first preset duration t1' can be defined as: after the refrigeration module has been closed for the first preset duration t1', the refrigeration module is in a normal and stable state.

[0040] Specifically, if t1 ≥ t1', at this time the refrigeration module is in a normal and stable state, when an ice-taking demand is obtained, the normal ice-taking program is run.

[0041] Correspondingly, if t1 < t1', at this time the refrigeration module is considered to be in an unstable state, it is necessary to further obtain the number of door openings N of the refrigeration device within the duration t2 before the moment T1. According to the number of door openings N of the refrigeration device within the duration t2, further analyze whether there is still a possibility of door opening after the ice-taking request is obtained, so as to avoid being interrupted by the door-opening action during the normal ice-taking program operation of the working circuit, and avoid wear and even damage to the motor of the working circuit.

[0042] In order to more accurately determine whether the refrigeration module is in a stable state, after t < t1', further determine whether the first duration t1 is greater than the second preset duration t2', where t2' < t1'. If t1 > t2', directly obtain the number of door openings N within the duration t2 before the moment T1; if t1 ≤ t2', obtain the number of door openings N within the duration t2 before the moment T2, where T2 is the moment (t2' - t1) before the moment T1. That is, judge the control program when the ice-taking request is obtained within a very short time after the door of the refrigeration device is closed, so that the control method of the refrigeration device is more refined, that is, move the start moment of the duration t2 forward. Using the moment T2, which is the difference between t2' and t1 before the moment T1, as the reference, reduce the waiting time, and then judge whether N is greater than the first preset number of door openings N1, and then follow the subsequent operation process.

[0043] In this embodiment, the door-opening sampling unit continuously samples the number of door openings of the refrigeration device, and intercepts the number within the second duration t2 before the closing moment T2 after receiving the instruction, and then judges whether N is greater than the first preset number of door openings N1.

[0044] Specifically, if N ≤ N1, delay the first delay duration t1''; and then run the normal ice-taking program. The first delay duration t1'' is related to the first preset duration t1' and the first duration t1. Preferably, the first delay duration t1'' is not less than the difference between the first preset duration t1' and t1. That is, when it is determined that the number of door openings of the door body is not very frequent, the ice-taking request is delayed by the first delay duration t1'' to ensure that the working circuit is in a stable state before running the normal ice-taking program.

[0045] It can be understood that during the process of delaying the first delay duration t1″, the working circuit is in a standby state. When the delay ends, the ice crushing switch K2 or the ice forming switch K3 is turned on, and then the normal ice taking program is run.

[0046] If N > N1, at this time, it is determined that the door body is in a misoperation of frequent opening and closing or in an experimental test stage, and the working circuit is controlled to be disconnected to avoid the working circuit from frequently generating very high reverse spike voltages, thereby damaging the ice crushing motor or even the working circuit. It can be understood that the larger the value of the number of door openings N, the longer the preset recovery duration te.

[0047] Specifically, during the process of disconnecting the circuit, first, the main switch K1 is controlled to be disconnected so that the motor of the working circuit cannot be in a working state. After a delay of the second delay duration t2″, the switches K2 and K3 are disconnected to ensure that the ice making module is not in a standby state.

[0048] The working circuit is controlled to be delayed until the preset recovery duration te, where the preset recovery duration te increases with the increase of the value of N. Preferably, the number of minutes of the duration of te is set to be half of the value of N; then the number of door openings N within the duration of t2 is cleared, and then the working circuit is controlled to be turned on, and then the normal ice taking program is run. That is, after the ice taking is completed, wait to re-enter the next cycle of ice taking requests.

[0049] As a preferred embodiment of the present invention, it is further determined whether N is greater than the second preset number of door openings N2 to make the control method of the refrigeration device more refined. If N ≥ N2, it means that N belongs to more frequent operations. At this time, during the process of the working circuit being in a disconnected state, the buzzer on the refrigeration module makes an alarm every time period until after the preset recovery duration te, and then the working circuit is controlled to be turned on.

[0050] It can be understood that if the refrigeration device is equipped with an ice water module, the determination logic of the control method of the present invention is also applicable to the operation of taking ice water from the refrigeration device.

[0051] As an example of a preferred embodiment of the present invention, it is assumed that t0 is 8 minutes, the first preset duration t1' is 60 seconds, the second preset duration t2' is 5 seconds, the third preset duration t3' is 6 minutes, the first preset number of door openings N1 is 5 times, the second preset number of door openings N2 is 10 times, and the first delay duration t2″ is 500 milliseconds. First, an ice-taking request is obtained. At the same time, the cumulative door-opening duration t within 8 minutes before obtaining the ice-taking request is judged. If t is 7 minutes, then wait until the ice-making module is in a normal use state and then proceed with the following procedures. If t is 5 minutes, then further judge the first duration t1 between the last door-closure moment and obtaining the ice-taking request. If t1 is 70 seconds, directly run the normal ice-taking program. If t1 is 40 seconds, which is greater than the second preset duration t2', then further judge the number of door openings N within 60 seconds before the moment T1. If t1 is 2 seconds, then further judge the number of door openings N within 60 seconds before the moment T2, which is 3 seconds before the moment T1. If N is 4 times, delay for at least 20 seconds, and then run the normal ice-taking program, where 20 seconds is the difference between t1' of 60 seconds and t1 of 40 seconds. If N is 7 times, then disconnect the working circuit and delay until the preset recovery duration te of 3.5 minutes and then reconnect the working circuit. Clear the number of door openings before reconnecting the circuit and run the normal ice-taking program. If N is 12 times, then disconnect the working circuit and delay until the preset recovery duration of 6 minutes and then reconnect the working circuit. The buzzer will alarm at intervals within 6 minutes for a warning effect.

[0052] In summary, the control method of the refrigeration device of the present invention can effectively prevent the normal ice-taking mode of the ice-making module from being disturbed by monitoring the number of door openings N within the duration t1 before the ice-taking program and the duration t2 before closing the door. Especially in the case of frequent door opening and closing caused by misoperation or experiments, it can effectively avoid the damage of the ice-crushing motor of the ice-making module or even the entire working circuit.

[0053] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0054] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for a refrigeration device, used for an ice-taking program, characterized in that: Obtain an ice-taking request and confirm that the door of the refrigeration device is in a closed state; Obtain the first duration t1 between the moment T0 when the ice-taking request is located and the previous door-closed moment T1 adjacent to this moment T0, and judge whether the aforementioned first duration t1 is less than the first preset duration t1'; If t1 < t1', further obtain the number of door openings N of the refrigeration device within the duration t2 before the moment T1, and judge whether N is greater than the first preset number of door openings N1; If N > N1, control the working circuit to be disconnected for a preset recovery duration te, and then control the working circuit to be connected to run the normal ice-taking program; If t1 ≥ t1', then run the normal ice-taking program; After t1 < t1', judge whether the above first duration t1 is greater than the second preset duration t2', where t2' < t1'; If t1 > t2', then further obtain the number of door openings N of the refrigeration device within the duration t2 before the moment T1; If t1 ≤ t2', then obtain the number of door openings N within the duration t2 before the moment T2, where T2 is the moment (t2' - t1) before the moment T1; Then judge whether N is greater than the first preset number of door openings N1.

2. The control method for a refrigeration device according to claim 1, characterized in that: If N ≤ N1; delay for the first delay duration t1'', and then run the normal ice-taking program.

3. The control method for a refrigeration device according to claim 1, characterized in that: After the working circuit is disconnected for the preset recovery duration te, the number of door openings N within the duration t2 is cleared.

4. The control method for a refrigeration device according to any one of claims 1 to 3, characterized in that: Before judging whether "the first duration t1 is less than the first preset duration t1'", obtain the cumulative door-opening time t within the duration t0 before the moment T1, and judge whether t is greater than the third preset duration t3'; If t < t3', then further judge whether t1 is less than the first preset duration t1'.

5. The control method for a refrigeration device according to claim 4, characterized in that: If t ≥ t3', then determine that the ice-making module is in an abnormal use state, and control the working circuit to be disconnected.

6. The control method of the refrigeration device according to claim 5, characterized in that: When it is determined that the ice-making module is in an abnormal use state, after the fourth preset duration t4', connect the working circuit.

7. The control method of the refrigeration device according to claim 5, characterized in that: When it is determined that the ice-making module is in an abnormal use state, detect the temperature Te of the ice-making module until Te ≤ the preset temperature Te0, and then connect the working circuit.

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