Electronic expansion valve regulating method and device based on coupling of multi-source data

Abstract

The application relates to the technical field of electronic expansion valve regulation, and discloses an electronic expansion valve regulation method and device based on multi-source data coupling, which comprises the following steps: obtaining current operation parameters of a heat pump unit in a current operation mode, and obtaining indoor and outdoor environment parameters of the heat pump unit; determining a reference superheat parameter of the heat pump unit according to the current operation parameters in the current operation mode, and determining a target superheat parameter of the heat pump unit according to the reference superheat parameter and the indoor and outdoor environment parameters; obtaining a current superheat parameter of the heat pump unit, and adjusting an electronic expansion valve of the heat pump unit according to a superheat difference between the current superheat parameter and the target superheat parameter. In this way, the current operation parameters of the heat pump unit and the indoor and outdoor environment parameters are combined, the control adaptability of the electronic expansion valve of the heat pump unit is improved, and therefore the heat pump unit can meet different environment regulation requirements, so that the use satisfaction of users can be improved.

Description

Technical Field

[0001] This invention relates to the field of electronic expansion valve regulation technology, and in particular to an electronic expansion valve regulation method and device based on multi-source data coupling. Background Technology

[0002] In the refrigerant flow control of heat pump units, the control logic of the electronic expansion valve (EEV) directly determines the unit's adaptability to environmental conditions. Current traditional control schemes have significant drawbacks: they rely on fixed parameters for driving the system, and the initial target superheat is executed based solely on a preset fixed value, completely disregarding dynamic changes in environmental conditions, resulting in extremely poor adaptability of the unit in complex scenarios.

[0003] For example, in high-humidity environments, the relative humidity of indoor and outdoor air is often maintained at 85%-95%. High humidity significantly increases the dew point temperature of the air and reduces the heat exchange efficiency of the refrigerant in the indoor heat exchanger. In this case, traditional solutions still adjust the EEV opening based on the fixed superheat setting preset for conventional dry environments. If the superheat setting is too low, the EEV opening is too large, resulting in excessive refrigerant flow. Although this can enhance the dehumidification effect, it will cause the indoor heat exchanger temperature to drop too much below the dew point, leading to an excessive drop in indoor temperature. This requires frequent activation of auxiliary electric heating to compensate for the temperature, increasing energy consumption by an additional 15%-20%. If the superheat setting is too high, the EEV opening is too small, resulting in insufficient refrigerant flow. This not only significantly reduces the dehumidification rate but also causes an abnormal increase in compressor suction superheat due to insufficient heat exchange in the heat exchanger, triggering the unit's frequency reduction protection and further weakening the dehumidification capacity. This fixed parameter control logic is difficult to match the need for coordinated dehumidification and temperature control in high-humidity environments, becoming a key weakness in the performance of heat pump units in this scenario. Therefore, it is particularly important to provide a technical solution that can improve the control adaptability of the EEV electronic expansion valve. Summary of the Invention

[0004] This invention provides an electronic expansion valve regulation method and device based on multi-source data coupling, which improves the control adaptability of the electronic expansion valve of the heat pump unit, thereby enabling the heat pump unit to meet different environmental regulation requirements and thus improving user satisfaction.

[0005] To address the aforementioned technical problems, the first aspect of this invention discloses an electronic expansion valve adjustment method based on multi-source data coupling, the method comprising:

[0006] Obtain the current operating parameters of the heat pump unit under the current operating mode, and obtain the indoor and outdoor environmental parameters of the heat pump unit;

[0007] Based on the current operating parameters under the current operating mode, determine the reference superheat parameter of the heat pump unit, and based on the reference superheat parameter, the indoor environmental parameters, and the outdoor environmental parameters, determine the target superheat parameter of the heat pump unit.

[0008] The current superheat parameter of the heat pump unit is obtained, and the electronic expansion valve of the heat pump unit is adjusted according to the superheat difference between the current superheat parameter and the target superheat parameter.

[0009] As an optional implementation, in the first aspect of the present invention, determining the target superheat parameter of the heat pump unit based on the reference superheat parameter, the indoor environmental parameter, and the outdoor environmental parameter includes:

[0010] Obtain the user's expected body temperature parameters and location parameters for the heat pump unit; the expected body temperature parameters include expected body temperature parameters and / or expected body humidity parameters.

[0011] The environmental difference between the indoor environmental parameters and the outdoor environmental parameters is calculated, and the baseline superheat parameter is corrected based on the environmental difference, the user's expected body temperature parameters, and the location parameters to obtain the target superheat parameter of the heat pump unit.

[0012] As an optional implementation, in the first aspect of the invention, adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter includes:

[0013] Based on the superheat difference between the current superheat parameter and the target superheat parameter, determine whether the superheat difference is within a preset superheat range;

[0014] When it is determined that the superheat difference is not within the superheat range, the target operating parameters of the target device of the heat pump unit are obtained; the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser;

[0015] Based on the superheat difference and the target operating parameters of the target device, the adjustment parameters of the electronic expansion valve of the heat pump unit are determined, and the electronic expansion valve is adjusted according to the adjustment parameters of the electronic expansion valve; the adjustment parameters include at least one of the following: opening direction adjustment parameters, opening rate adjustment parameters, opening size adjustment parameters, and adjustment time parameters.

[0016] As an optional implementation, in the first aspect of the present invention, determining the adjustment parameters of the electronic expansion valve of the heat pump unit based on the superheat difference and the target operating parameters of the target device includes:

[0017] Based on the superheat difference and the target operating parameters of the target device, the current refrigerant parameters of the heat pump unit are determined; the current refrigerant parameters include at least one of the current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters.

[0018] The safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser are determined, and the adjustment parameters of the electronic expansion valve of the heat pump unit are determined based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range of the condenser.

[0019] As an optional implementation, in a first aspect of the invention, before adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter, the method further includes:

[0020] Obtain the historical valve core usage parameters of the electronic expansion valve; the historical valve core usage parameters include at least one of the following: historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters;

[0021] Based on the historical valve core usage parameters, predict the valve core jamming condition of the electronic expansion valve; the valve core jamming condition includes valve core jamming duration and / or valve core jamming frequency;

[0022] Based on the valve core jamming condition, the first excitation control parameter of the electronic expansion valve is determined, and the electronic expansion valve is subjected to excitation control operation based on the first excitation control parameter; the first excitation control parameter includes a first excitation control duration parameter and / or a first excitation control intensity parameter.

[0023] As an optional implementation, in the first aspect of the invention, after adjusting the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter, the method further includes:

[0024] Obtain the historical valve core usage parameters of the electronic expansion valve; the historical valve core usage parameters include at least one of the following: historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters;

[0025] The adjustment opening parameter of the electronic expansion valve is obtained, and the valve core rebound parameter of the electronic expansion valve is predicted based on the historical valve core usage parameters and the adjustment opening parameter; the adjustment opening parameter includes the adjustment opening direction parameter and / or the adjustment opening size parameter, and the valve core rebound parameter includes the valve core rebound force parameter and / or the valve core rebound rate parameter.

[0026] Based on the valve core rebound parameters, the second excitation control parameters of the electronic expansion valve are determined, and the electronic expansion valve is subjected to excitation control operation based on the second excitation control parameters; the second excitation control parameters include the second excitation control duration parameter and / or the second excitation control intensity parameter.

[0027] As an optional implementation, in the first aspect of the present invention, determining the safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser includes:

[0028] The system obtains the first refrigerant parameters of the heat pump unit and the temperature limit parameters of the compressor's lubricating oil. Based on the first refrigerant parameters, it determines the lower threshold of the safe evaporation environment of the evaporator and the upper threshold of the safe evaporation environment of the evaporator based on the temperature limit parameters of the lubricating oil. The first refrigerant parameters include the refrigerant saturation pressure parameters.

[0029] The second refrigerant parameters and the critical pressure parameters of the basic components of the heat pump unit are obtained; the second refrigerant parameters include the critical pressure parameter of the refrigerant and the refrigerant flow rate requirement parameter, and the basic components include the condenser and the compressor; based on the refrigerant flow rate requirement parameter, the lower limit threshold of the safe condensing pressure of the condenser is determined, and based on the critical pressure parameter of the refrigerant and the critical pressure parameters of the basic components, the upper limit threshold of the safe condensing pressure of the condenser is determined.

[0030] A second aspect of the present invention discloses an electronic expansion valve regulating device based on multi-source data coupling, the device comprising:

[0031] The acquisition module is used to acquire the current operating parameters of the heat pump unit in the current operating mode, and to acquire the indoor and outdoor environmental parameters of the heat pump unit.

[0032] The determination module is used to determine the reference superheat parameter of the heat pump unit based on the current operating parameters in the current operating mode, and to determine the target superheat parameter of the heat pump unit based on the reference superheat parameter, the indoor environmental parameters, and the outdoor environmental parameters.

[0033] The acquisition module is also used to acquire the current superheat parameter of the heat pump unit;

[0034] The adjustment module is used to adjust the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter.

[0035] As an optional implementation, in a second aspect of the present invention, the method by which the determining module determines the target superheat parameter of the heat pump unit based on the reference superheat parameter, the indoor environmental parameter, and the outdoor environmental parameter specifically includes:

[0036] Obtain the user's expected body temperature parameters and location parameters for the heat pump unit; the expected body temperature parameters include expected body temperature parameters and / or expected body humidity parameters.

[0037] The environmental difference between the indoor environmental parameters and the outdoor environmental parameters is calculated, and the baseline superheat parameter is corrected based on the environmental difference, the user's expected body temperature parameters, and the location parameters to obtain the target superheat parameter of the heat pump unit.

[0038] As an optional implementation, in a second aspect of the present invention, the method by which the adjustment module adjusts the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter specifically includes:

[0039] Based on the superheat difference between the current superheat parameter and the target superheat parameter, determine whether the superheat difference is within a preset superheat range;

[0040] When it is determined that the superheat difference is not within the superheat range, the target operating parameters of the target device of the heat pump unit are obtained; the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser;

[0041] Based on the superheat difference and the target operating parameters of the target device, the adjustment parameters of the electronic expansion valve of the heat pump unit are determined, and the electronic expansion valve is adjusted according to the adjustment parameters of the electronic expansion valve; the adjustment parameters include at least one of the following: opening direction adjustment parameters, opening rate adjustment parameters, opening size adjustment parameters, and adjustment time parameters.

[0042] As an optional implementation, in a second aspect of the present invention, the method by which the regulating module determines the regulating parameters of the electronic expansion valve of the heat pump unit based on the superheat difference and the target operating parameters of the target device specifically includes:

[0043] Based on the superheat difference and the target operating parameters of the target device, the current refrigerant parameters of the heat pump unit are determined; the current refrigerant parameters include at least one of the current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters.

[0044] The safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser are determined, and the adjustment parameters of the electronic expansion valve of the heat pump unit are determined based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range of the condenser.

[0045] As an optional implementation, in a second aspect of the invention, the acquisition module is further configured to:

[0046] Before the adjustment module adjusts the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter, the historical valve core usage parameters of the electronic expansion valve are obtained; the historical valve core usage parameters include at least one of historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters;

[0047] The device further includes:

[0048] The first prediction module is used to predict the valve core jamming condition of the electronic expansion valve based on the historical valve core usage parameters; the valve core jamming condition includes valve core jamming duration and / or valve core jamming frequency;

[0049] The determining module is also used to determine the first excitation control parameter of the electronic expansion valve based on the valve core jamming situation;

[0050] The first excitation control module is used to perform excitation control operation on the electronic expansion valve according to the first excitation control parameters; the first excitation control parameters include a first excitation control duration parameter and / or a first excitation control intensity parameter.

[0051] As an optional implementation, in a second aspect of the invention, the acquisition module is further configured to:

[0052] After the adjustment module adjusts the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter, it obtains the historical valve core usage parameters of the electronic expansion valve; the historical valve core usage parameters include at least one of historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters; and obtains the adjusted opening parameter of the electronic expansion valve.

[0053] The device further includes:

[0054] The second prediction module is used to predict the valve core rebound parameters of the electronic expansion valve based on the historical valve core usage parameters and the adjusted opening parameters; the adjusted opening parameters include the adjusted opening direction parameters and / or the adjusted opening size parameters, and the valve core rebound parameters include the valve core rebound force parameters and / or the valve core rebound rate parameters.

[0055] The determining module is used to determine the second excitation control parameters of the electronic expansion valve based on the valve core rebound parameters;

[0056] The second excitation control module is used to perform excitation control operation on the electronic expansion valve according to the second excitation control parameters; the second excitation control parameters include the second excitation control duration parameter and / or the second excitation control intensity parameter.

[0057] As an optional implementation, in a second aspect of the present invention, the method by which the adjustment module determines the safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser specifically includes:

[0058] The system obtains the first refrigerant parameters of the heat pump unit and the temperature limit parameters of the compressor's lubricating oil. Based on the first refrigerant parameters, it determines the lower threshold of the safe evaporation environment of the evaporator and the upper threshold of the safe evaporation environment of the evaporator based on the temperature limit parameters of the lubricating oil. The first refrigerant parameters include the refrigerant saturation pressure parameters.

[0059] The second refrigerant parameters and the critical pressure parameters of the basic components of the heat pump unit are obtained; the second refrigerant parameters include the critical pressure parameter of the refrigerant and the refrigerant flow rate requirement parameter, and the basic components include the condenser and the compressor; based on the refrigerant flow rate requirement parameter, the lower limit threshold of the safe condensing pressure of the condenser is determined, and based on the critical pressure parameter of the refrigerant and the critical pressure parameters of the basic components, the upper limit threshold of the safe condensing pressure of the condenser is determined.

[0060] A third aspect of the present invention discloses another electronic expansion valve regulating device based on multi-source data coupling, the device comprising:

[0061] Memory containing executable program code;

[0062] A processor coupled to the memory;

[0063] The processor calls the executable program code stored in the memory to execute the electronic expansion valve regulation method based on multi-source data coupling disclosed in the first aspect of the present invention.

[0064] The fourth aspect of the present invention discloses a computer storage medium storing computer instructions, which, when invoked, are used to execute the electronic expansion valve regulation method based on multi-source data coupling disclosed in the first aspect of the present invention.

[0065] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0066] In this embodiment of the invention, the current operating parameters of the heat pump unit under its current operating mode are obtained, along with the indoor and outdoor environmental parameters. Based on the current operating parameters, a reference superheat parameter for the heat pump unit is determined, and a target superheat parameter is determined based on the reference superheat parameter and the indoor and outdoor environmental parameters. The current superheat parameter of the heat pump unit is obtained, and the electronic expansion valve of the heat pump unit is adjusted based on the superheat difference between the current and target superheat parameters. By combining the current operating parameters of the heat pump unit with the indoor and outdoor environmental parameters, the control adaptability of the electronic expansion valve of the heat pump unit is improved, enabling the heat pump unit to meet different environmental adjustment needs and thus improving user satisfaction. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0068] Figure 1 This is a schematic flowchart of an electronic expansion valve regulation method based on multi-source data coupling disclosed in an embodiment of the present invention;

[0069] Figure 2 This is a schematic flowchart of another electronic expansion valve regulation method based on multi-source data coupling disclosed in an embodiment of the present invention;

[0070] Figure 3 This is a schematic diagram of the structure of an electronic expansion valve regulating device based on multi-source data coupling disclosed in an embodiment of the present invention;

[0071] Figure 4 This is a schematic diagram of another electronic expansion valve regulating device based on multi-source data coupling disclosed in an embodiment of the present invention;

[0072] Figure 5 This is a schematic diagram of another electronic expansion valve regulating device based on multi-source data coupling disclosed in an embodiment of the present invention. Detailed Implementation

[0073] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0074] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0075] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0076] This invention discloses an electronic expansion valve regulation method and device based on multi-source data coupling, which improves the control adaptability of the electronic expansion valve of the heat pump unit, thereby enabling the heat pump unit to meet different environmental regulation needs and thus improving user satisfaction.

[0077] Example 1

[0078] Please see Figure 1 , Figure 1 This is a schematic flowchart of an electronic expansion valve regulation method based on multi-source data coupling disclosed in an embodiment of the present invention. Figure 1 The described electronic expansion valve regulation method based on multi-source data coupling can be applied to electronic expansion valve regulation scenarios in various operating modes of heat pump units, such as cooling mode, heating mode, dehumidification mode, and air supply mode, etc., and this embodiment of the invention is not limited thereto. Optionally, this method can be implemented by an electronic expansion valve device, which can be integrated into the heat pump unit, or it can be a local server or cloud server used to process the electronic expansion valve regulation process, etc., and this embodiment of the invention is not limited thereto. Figure 1 As shown, the electronic expansion valve regulation method based on multi-source data coupling may include the following operations:

[0079] 101. Obtain the current operating parameters of the heat pump unit under the current operating mode, and obtain the indoor and outdoor environmental parameters of the heat pump unit.

[0080] In this embodiment of the invention, optionally, the current operating parameters in the current operating mode may include one of the current cooling parameters in the current cooling mode, the current heating parameters in the current heating mode, the current dehumidification parameters in the current dehumidification mode, and the current air supply parameters in the current air supply mode. Further optionally, the indoor and outdoor environmental parameters of the heat pump unit may each include corresponding ambient temperature parameters and / or ambient humidity parameters.

[0081] 102. Based on the current operating parameters under the current operating mode, determine the reference superheat parameter of the heat pump unit, and based on the reference superheat parameter, indoor environmental parameters, and outdoor environmental parameters, determine the target superheat parameter of the heat pump unit.

[0082] In this embodiment of the invention, the reference superheat parameter of the heat pump unit can be determined through a database established based on experimental data before delivery. For example, tests are conducted under standard environmental conditions (e.g., 18°C ​​to 28°C) for different operating modes (cooling / heating / dehumidification / air supply). The electronic expansion valve is adjusted with a certain adjustment step, and data such as the corresponding superheat parameter, operating energy efficiency ratio, compressor discharge temperature, and condenser condensing pressure of the heat pump unit are recorded. The superheat parameters corresponding to safe thresholds (e.g., meeting the safe range of compressor discharge temperature and condenser condensing pressure) and high operating energy efficiency ratios are then selected as the reference superheat parameter under the standard environmental conditions. After repeating the above testing process, and completing the determination of the reference superheat parameter for all operating modes under the corresponding standard environmental conditions, a database is established according to the correspondence between operating mode, standard condition, and reference superheat, for use by the heat pump unit during operation.

[0083] Furthermore, based on the baseline superheat parameters, indoor environmental parameters, and outdoor environmental parameters, the target superheat parameters of the heat pump unit are determined, including:

[0084] Obtain the expected physical and location parameters of users of the heat pump unit;

[0085] The environmental difference between indoor and outdoor environmental parameters is calculated, and the baseline superheat parameter is corrected based on the environmental difference, the user's expected physical sensation parameter, and the location parameter to obtain the target superheat parameter of the heat pump unit.

[0086] In this optional embodiment, the expected perceived temperature parameter may optionally include the expected perceived humidity parameter. Further optionally, the location parameter may include at least the distance between the user and the heat pump unit, and may also include the relative angle between the user and the heat pump unit.

[0087] Furthermore, the target superheat parameter ΔT_target of the heat pump unit can be determined by the following formula:

[0088] ΔT_target=ΔT_base+k1×(T_room-T_out)+k2×(H_room-H_out)+k3×(T_sense_exp-T_sense_act)+k4×(H_sense_exp-H_sense_act)+k5×(D-D0);

[0089] Wherein, ΔT_base is the reference superheat parameter of the heat pump unit, T_room-T_out is the indoor-outdoor temperature difference, H_room-H_out is the indoor-outdoor humidity difference, T_sense_exp is the user's expected perceived temperature parameter, T_sense_act is the user's actual perceived temperature parameter (which can be converted from the indoor temperature parameter), H_sense_exp is the user's expected perceived humidity parameter, H_sense_act is the user's actual perceived humidity parameter (which can be converted from the indoor humidity parameter), D is the distance parameter between the user and the heat pump unit, D0 is the preset reference distance parameter (such as the optimal perceived distance between the user and the heat pump unit obtained through testing), and K1~K5 are the corresponding correction coefficients (with dimensions of ℃ / ℃, ℃ / %, ℃ / ℃, ℃ / % and ℃ / m, respectively). The specific values ​​of K1~K5 can be calibrated according to the model of the heat pump unit and experimental data.

[0090] 103. Obtain the current superheat parameter of the heat pump unit, and adjust the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter.

[0091] In this embodiment of the invention, the adjustment operation corresponding to the electronic expansion valve may include adjusting the opening size and the opening direction. After adjustment, the operation of the heat pump unit can meet different environmental regulation requirements.

[0092] As can be seen, implementing the embodiments of the present invention can combine the difference between indoor and outdoor environments, the user's expected comfort parameters, and location parameters to obtain the target superheat parameter by dynamically correcting the baseline superheat parameter. This not only adapts to the impact of environmental changes on heat exchange efficiency but also adjusts the operating status according to the user's actual comfort needs and spatial location differences, significantly improving user comfort. Furthermore, by specifically adjusting the electronic expansion valve based on the difference between the current and target superheat, the operating parameters of the heat pump unit can be optimized in real time. While ensuring the safety of core components such as the compressor and condenser, this effectively improves the unit's energy efficiency ratio and reduces energy loss, achieving a multi-dimensional balance between safety, energy saving, and comfort in the heat pump unit.

[0093] In an optional embodiment, before adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter in step 103 above, the method further includes:

[0094] Obtain historical valve core usage parameters for the electronic expansion valve;

[0095] Based on historical valve core usage parameters, predict the valve core jamming situation of the electronic expansion valve;

[0096] Based on the valve core jamming situation, determine the first excitation control parameter of the electronic expansion valve, and perform excitation control operation on the electronic expansion valve according to the first excitation control parameter.

[0097] In this optional embodiment, the historical valve core usage parameters may include at least one of the following: historical valve core operating status (e.g., whether the valve core jammed during historical use; if so, the response delay duration is counted: response delay > 1s indicates slight jamming; response delay > 3s indicates moderate jamming; no response indicates severe jamming, and the number of occurrences is counted), historical valve core usage time parameters, and historical valve core usage mode parameters.

[0098] Further optionally, valve core jamming includes valve core jamming duration and / or valve core jamming frequency. For example, a predictive model can be built based on historical data. For instance, when the cumulative operating time exceeds 8000 hours and the number of minor jamming events is greater than 5, the jamming frequency is predicted to increase by 30% within the next 72 hours; when the continuous operating time exceeds 48 hours and the single adjustment interval is less than 10 seconds, the jamming duration is predicted to extend to 2-4 seconds, and so on.

[0099] Further optionally, the first excitation control parameters include the first excitation control duration parameter and / or the first excitation control intensity parameter. For example, for slight jamming, a 1.2 times excitation intensity and a 5-second excitation duration are used; for moderate jamming, a 1.5 times excitation intensity and a 10-second excitation duration are used; and for severe jamming, a 1.8 times excitation intensity is used, divided into three 15-second pulses with 20-second intervals. After excitation, the valve core response speed needs to be checked. If it recovers to within 1 second, it is considered effective; if it still exceeds 3 seconds, secondary excitation or an alarm is triggered.

[0100] As can be seen, this optional embodiment can significantly improve the operational stability and reliability of the heat pump unit by introducing valve core jamming prediction and excitation control before the electronic expansion valve is regulated. Specifically, by quantifying historical valve core usage parameters, the risk of electronic expansion valve jamming can be predicted, reducing the problem of superheat regulation failure caused by jamming. At the same time, matching differentiated excitation parameters for different degrees of jamming can effectively alleviate electronic expansion valve jamming of varying degrees, reduce the probability of core component failure, and reduce problems such as increased energy consumption and decreased heat exchange efficiency caused by valve core jamming; it also extends the service life of the electronic expansion valve, further ensuring the safe and efficient operation of the unit under dynamic operating conditions.

[0101] In another optional embodiment, after adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter in step 103 above, the method further includes:

[0102] Obtain historical valve core usage parameters for the electronic expansion valve;

[0103] Obtain the adjusted opening parameters of the electronic expansion valve, and predict the valve core rebound parameters based on historical valve core usage parameters and adjusted opening parameters.

[0104] Based on the valve core rebound parameters, the second excitation control parameters of the electronic expansion valve are determined, and the electronic expansion valve is subjected to excitation control operation based on the second excitation control parameters.

[0105] In this optional embodiment, the historical valve core usage parameters may include at least one of the following: historical valve core operating conditions (e.g., whether the valve core rebounded during the historical adjustment process; if so, the rebound parameters are statistically analyzed: opening deviation <5%, which is considered normal rebound; opening deviation 5%~15%, which is considered abnormal rebound; opening deviation >15%, which is considered severe rebound, and the number of occurrences is also statistically analyzed), historical valve core usage time parameters, and historical valve core usage mode parameters.

[0106] Further optionally, the adjusted opening parameters include the adjusted opening direction parameter and / or the adjusted opening size parameter, and the valve core rebound parameters include the valve core rebound force parameter and / or the valve core rebound rate parameter. For example, when the cumulative number of adjustments exceeds 10,000 and the adjusted opening is >80%, the predicted rebound force increases by 20%; when the proportion of high-frequency adjustment periods in the past 30 days exceeds 40% and the adjusted opening direction is increasing, the predicted rebound rate rises to 0.5% / s (normal rate <0.2% / s).

[0107] Further optionally, the second excitation control parameters include a second excitation control duration parameter and / or a second excitation control intensity parameter. For example, for normal rebound, a 1x excitation intensity and 3s continuous excitation are used; for abnormal rebound, a 1.1x excitation intensity and 8s continuous excitation are used; for severe rebound, a 1.3x excitation intensity is used in conjunction with the adjusted opening direction, applying 5 2s pulse excitations (10s intervals) in the direction of suppressing rebound. After excitation, the opening stability needs to be checked. If the rebound deviation is <3%, it is considered effective; otherwise, the parameters are updated based on historical data, and re-excitation is performed to ensure that the valve core maintains the target opening.

[0108] As can be seen, this optional embodiment can improve the accuracy and stability of superheat regulation of the heat pump unit by introducing valve core rebound prediction and secondary excitation control after adjusting the electronic expansion valve. Specifically, by quantifying historical rebound data and combining it with the adjusted opening parameters, the rebound force / rate of the valve core can be predicted, reducing the opening deviation problem caused by valve core rebound. At the same time, by matching differentiated excitation parameters for different rebound levels, the rebound trend of the valve core can be precisely suppressed, ensuring that the valve core is stable in the target position, reducing superheat fluctuations, and thus further ensuring the energy efficiency and stability of the heat pump unit in dynamic operation, extending the valve core service life, and improving the overall reliability of the system.

[0109] Example 2

[0110] Please see Figure 2 , Figure 2 This is a schematic flowchart of another electronic expansion valve regulation method based on multi-source data coupling disclosed in an embodiment of the present invention. Figure 2 The described electronic expansion valve regulation method based on multi-source data coupling can be applied to electronic expansion valve regulation scenarios in various operating modes of heat pump units, such as cooling mode, heating mode, dehumidification mode, and air supply mode, etc., and this embodiment of the invention is not limited thereto. Optionally, this method can be implemented by an electronic expansion valve device, which can be integrated into the heat pump unit, or it can be a local server or cloud server used to process the electronic expansion valve regulation process, etc., and this embodiment of the invention is not limited thereto. Figure 2 As shown, the electronic expansion valve regulation method based on multi-source data coupling may include the following operations:

[0111] 201. Obtain the current operating parameters of the heat pump unit under the current operating mode, and obtain the indoor and outdoor environmental parameters of the heat pump unit.

[0112] 202. Based on the current operating parameters under the current operating mode, determine the reference superheat parameter of the heat pump unit, and based on the reference superheat parameter, indoor environmental parameters, and outdoor environmental parameters, determine the target superheat parameter of the heat pump unit.

[0113] 203. Obtain the current superheat parameter of the heat pump unit, and determine whether the superheat difference is within the preset superheat range based on the superheat difference between the current superheat parameter and the target superheat parameter.

[0114] In this embodiment of the invention, the preset superheat range can be set according to the safe operating threshold of the heat pump unit, and the specific value can be calibrated based on different operating modes.

[0115] 204. When it is determined that the superheat difference is not within the superheat range, obtain the target operating parameters of the target device of the heat pump unit.

[0116] In this embodiment of the invention, optionally, the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser. The current evaporation environment parameters of the evaporator may include one or more of the following: the current coil temperature, air volume, heat exchange area utilization rate, etc. of the evaporator. The current condensation pressure parameters of the condenser may include one or more of the following: the current pressure value of the condenser, the pressure fluctuation frequency, the deviation value from the standard operating pressure, etc.

[0117] Furthermore, when it is determined that the superheat difference is within the superheat range, the current opening direction and current opening size of the electronic expansion valve are maintained.

[0118] 205. Based on the superheat difference and the target operating parameters of the target device, determine the adjustment parameters of the electronic expansion valve of the heat pump unit, and adjust the electronic expansion valve according to the adjustment parameters of the electronic expansion valve.

[0119] In this embodiment of the invention, the adjustment parameters may optionally include at least one of the following: opening direction adjustment parameter, opening rate adjustment parameter, opening size adjustment parameter, and adjustment time parameter.

[0120] For example, if the superheat difference is +5℃ (the current superheat is too high) and the evaporator coil temperature is 3℃ lower than the preset value, the opening direction of the electronic expansion valve is set to increase, with the opening size being 8% of the difference (e.g., 1.6% opening per ℃ difference), the rate is controlled at 2% / s (to avoid sudden pressure changes), and the adjustment time is limited to within 10s; if the condensing pressure is detected to exceed the upper limit by 10% at the same time, the opening rate is reduced to 1% / s, and the adjustment time is extended to 15s, so as to balance the superheat and system pressure stability through gradual adjustment.

[0121] In this embodiment of the invention, for other descriptions of steps 201-202, please refer to the detailed description of steps 101-102 in Embodiment 1. This embodiment of the invention will not repeat them.

[0122] As can be seen, by implementing the embodiments of the present invention, the adjustment parameters of the electronic expansion valve of the heat pump unit can be determined by calculating the superheat difference and obtaining the target operating parameters of the target device, thereby realizing the intelligent adjustment process of the electronic expansion valve. This can improve the reliability, accuracy and effectiveness of determining the adjustment parameters of the electronic expansion valve, reduce the occurrence of system imbalance caused by single parameter adjustment, and thus improve the adjustment accuracy and operational stability of the heat pump unit, thereby facilitating the coordinated optimization of efficient, safe and low-consumption operation of the unit.

[0123] In an optional embodiment, step 205 above, determining the adjustment parameters of the electronic expansion valve of the heat pump unit based on the superheat difference and the target operating parameters of the target device, includes:

[0124] The current refrigerant parameters of the heat pump unit are determined based on the superheat difference and the target operating parameters of the target device.

[0125] Determine the safe evaporation environment parameter range for the evaporator and the safe condensation pressure range for the condenser. Based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range for the condenser, determine the adjustment parameters of the electronic expansion valve for the heat pump unit.

[0126] In this optional embodiment, the current refrigerant parameters may include at least one of the following: current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters.

[0127] Furthermore, the safe evaporation environment parameter range for the evaporator and the safe condensation pressure range for the condenser are determined, including:

[0128] The system obtains the first refrigerant parameters of the heat pump unit and the temperature limit parameters of the compressor's lubricating oil. Based on the first refrigerant parameters, it determines the lower threshold of the safe evaporation environment of the evaporator, and based on the temperature limit parameters of the lubricating oil, it determines the upper threshold of the safe evaporation environment of the evaporator. The first refrigerant parameters include the refrigerant saturation pressure parameters.

[0129] Obtain the second refrigerant parameters and the critical pressure parameters of the basic components of the heat pump unit; the second refrigerant parameters include the critical pressure parameter of the refrigerant and the refrigerant flow requirement parameter, and the basic components include the condenser and the compressor; based on the refrigerant flow requirement parameter, determine the lower limit threshold of the safe condensing pressure of the condenser, and based on the critical pressure parameter of the refrigerant and the critical pressure parameters of the basic components, determine the upper limit threshold of the safe condensing pressure of the condenser.

[0130] In this optional embodiment, for example, in winter heating mode, the system detects that the current superheat difference is -4℃ (the current superheat is lower than the target value, which may indicate that the refrigerant has not completely evaporated), and simultaneously obtains the target device parameters: evaporator coil temperature 5℃ (higher than the preset standard value of 2℃ in this mode, indicating low heat exchange efficiency), and condenser current condensing pressure 0.6MPa (lower than the pressure requirement to maintain normal heating).

[0131] Based on the above data, the current refrigerant parameters were calculated: through the coupled analysis of superheat difference and evaporator temperature, it was found that the refrigerant flow rate was too high (measured at 55 kg / h, which is higher than the rated heating demand of 45 kg / h for the unit), and the refrigerant gas-liquid ratio at the evaporator outlet was 8:2 (there is 20% unevaporated liquid refrigerant, which may cause liquid slugging in the compressor).

[0132] Subsequently, the safe operating range of the components was determined: On the evaporator side, based on the saturation pressure parameters of R32 refrigerant, the lower limit threshold for the safe evaporation environment was set at 2℃ (the current temperature of 5℃ is within the safe range and will not freeze); combined with the 120℃ temperature resistance limit of the compressor's synthetic lubricating oil, the upper limit threshold was set at 50℃ (the current temperature is far below the upper limit, and there is no risk of lubricating oil carbonization). On the condenser side, based on the refrigerant flow requirement parameters corresponding to the rated heating capacity of the unit, the lower limit threshold for the safe condensing pressure was set at 0.8MPa (the current 0.6MPa is not up to standard, and the pressure needs to be increased to ensure heating efficiency); and, referring to the critical pressure of R32 refrigerant at 4.95MPa and the pressure bearing critical value of the condenser shell at 3.0MPa, the minimum of the two was taken to set the upper limit threshold at 2.8MPa (the current pressure is far below the upper limit, and there is room for pressure increase).

[0133] The final electronic expansion valve adjustment parameters were determined as follows: due to the low superheat, the opening needs to be reduced to decrease the refrigerant flow, but the condenser pressure is insufficient and needs to be pushed to rise simultaneously. Therefore, the opening direction is set to decrease, the opening size is set to 3% of the difference (each 1°C difference corresponds to 0.75% adjustment), the opening rate is controlled at 1% / s (slightly faster than the normal rate, to accelerate flow optimization to push the pressure to rise), and the adjustment time is limited to 10s (while quickly correcting the superheat, it can ensure that the condensing pressure rises steadily to above the safe lower limit, taking into account both system safety and heating effect).

[0134] As can be seen, this optional embodiment can calculate the current refrigerant parameters of the heat pump unit by combining the superheat difference and the target device parameters. Then, based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensing pressure range of the condenser, the adjustment parameters of the electronic expansion valve of the heat pump unit are determined. In this way, through the deep coupling of refrigerant parameters and device safety thresholds, the adjustment safety and accuracy of the electronic expansion valve are improved. This reduces the risks of evaporator icing and device overpressure, and extends the life of components. It also reduces the imbalance problem of single parameter adjustment, which helps to reduce the risk of compressor liquid slugging and ensure heating efficiency, and achieves synergistic optimization of unit safety, energy efficiency and comfort.

[0135] Example 3

[0136] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of an electronic expansion valve regulating device based on multi-source data coupling, as disclosed in an embodiment of the present invention. Figure 3 As shown, the electronic expansion valve regulating device based on multi-source data coupling may include:

[0137] The acquisition module 301 is used to acquire the current operating parameters of the heat pump unit in the current operating mode, and to acquire the indoor and outdoor environmental parameters of the heat pump unit.

[0138] The determination module 302 is used to determine the reference superheat parameter of the heat pump unit based on the current operating parameters in the current operating mode, and to determine the target superheat parameter of the heat pump unit based on the reference superheat parameter, indoor environmental parameters and outdoor environmental parameters.

[0139] The acquisition module 301 is also used to acquire the current superheat parameters of the heat pump unit;

[0140] The adjustment module 303 is used to adjust the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter.

[0141] In this embodiment of the invention, the method by which the determining module 302 determines the target superheat parameter of the heat pump unit based on the reference superheat parameter, indoor environmental parameters, and outdoor environmental parameters specifically includes:

[0142] Obtain the expected physical and location parameters of users of the heat pump unit;

[0143] The environmental difference between indoor and outdoor environmental parameters is calculated, and the baseline superheat parameter is corrected based on the environmental difference, the user's expected physical sensation parameter, and the location parameter to obtain the target superheat parameter of the heat pump unit.

[0144] In this optional embodiment, the expected body temperature parameters include the expected body temperature parameters and / or the expected body humidity parameters.

[0145] It is evident that implementation Figure 3 The described electronic expansion valve regulating device based on multi-source data coupling can combine indoor and outdoor environmental differences, user-expected comfort parameters, and location parameters to dynamically correct the baseline superheat parameter to obtain the target superheat parameter. This adapts to the impact of environmental changes on heat exchange efficiency and adjusts the operating status according to the user's actual comfort needs and spatial location differences, significantly improving user comfort. Furthermore, by specifically adjusting the electronic expansion valve based on the difference between the current and target superheat, the operating parameters of the heat pump unit can be optimized in real time. While ensuring the safety of core components such as the compressor and condenser, this effectively improves the unit's energy efficiency ratio and reduces energy loss, achieving a multi-dimensional balance between safety, energy saving, and comfort in the heat pump unit.

[0146] In an optional embodiment, the adjustment module 303 adjusts the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter, specifically including the following methods:

[0147] Based on the superheat difference between the current superheat parameter and the target superheat parameter, determine whether the superheat difference is within the preset superheat range;

[0148] When it is determined that the superheat difference is not within the superheat range, the target operating parameters of the target device of the heat pump unit are obtained;

[0149] Based on the superheat difference and the target operating parameters of the target device, the adjustment parameters of the electronic expansion valve of the heat pump unit are determined, and the electronic expansion valve is adjusted according to the adjustment parameters.

[0150] In this optional embodiment, the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser; the adjustment parameters include at least one of the following: opening direction adjustment parameters, opening rate adjustment parameters, opening size adjustment parameters, and adjustment time parameters.

[0151] It is evident that implementation Figure 4 The described electronic expansion valve regulating device based on multi-source data coupling can determine the regulating parameters of the electronic expansion valve of the heat pump unit by calculating the superheat difference and obtaining the target operating parameters of the target device, thereby realizing the intelligent regulation process of the electronic expansion valve. This can improve the reliability, accuracy and effectiveness of determining the regulating parameters of the electronic expansion valve, reduce the occurrence of system imbalance caused by single parameter regulation, and thus improve the regulation accuracy and operational stability of the heat pump unit, which is conducive to achieving the coordinated optimization of efficient, safe and low-consumption operation of the unit.

[0152] In another optional embodiment, the method by which the regulating module 303 determines the regulating parameters of the electronic expansion valve of the heat pump unit based on the superheat difference and the target operating parameters of the target device specifically includes:

[0153] The current refrigerant parameters of the heat pump unit are determined based on the superheat difference and the target operating parameters of the target device.

[0154] Determine the safe evaporation environment parameter range for the evaporator and the safe condensation pressure range for the condenser. Based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range for the condenser, determine the adjustment parameters of the electronic expansion valve for the heat pump unit.

[0155] In this optional embodiment, the current refrigerant parameters include at least one of the following: current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters.

[0156] Furthermore, the adjustment module 303 determines the safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser in the following specific ways:

[0157] The system obtains the first refrigerant parameters of the heat pump unit and the temperature limit parameters of the compressor's lubricating oil. Based on the first refrigerant parameters, it determines the lower threshold of the safe evaporation environment of the evaporator, and based on the temperature limit parameters of the lubricating oil, it determines the upper threshold of the safe evaporation environment of the evaporator. The first refrigerant parameters include the refrigerant saturation pressure parameters.

[0158] Obtain the second refrigerant parameters and the critical pressure parameters of the basic components of the heat pump unit; the second refrigerant parameters include the critical pressure parameter of the refrigerant and the refrigerant flow requirement parameter, and the basic components include the condenser and the compressor; based on the refrigerant flow requirement parameter, determine the lower limit threshold of the safe condensing pressure of the condenser, and based on the critical pressure parameter of the refrigerant and the critical pressure parameters of the basic components, determine the upper limit threshold of the safe condensing pressure of the condenser.

[0159] It is evident that implementation Figure 4 The described electronic expansion valve regulating device based on multi-source data coupling can combine the superheat difference and target device parameters to calculate the current refrigerant parameters of the heat pump unit. Then, based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensing pressure range of the condenser, it determines the regulating parameters of the electronic expansion valve of the heat pump unit. In this way, through the deep coupling of refrigerant parameters and device safety thresholds, the regulation safety and accuracy of the electronic expansion valve are improved. This reduces the risks of evaporator icing and device overpressure, extending the life of components. It also reduces the imbalance problem of single parameter regulation, which helps to reduce the risk of compressor liquid slugging and ensure heating efficiency, achieving synergistic optimization of unit safety, energy efficiency, and comfort.

[0160] In yet another optional embodiment, the acquisition module 301 is further configured to:

[0161] Before the adjustment module 303 adjusts the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter, it obtains the historical valve core usage parameters of the electronic expansion valve.

[0162] The device also includes:

[0163] The first prediction module 304 is used to predict the valve core jamming situation of the electronic expansion valve based on historical valve core usage parameters.

[0164] The determination module 302 is also used to determine the first excitation control parameters of the electronic expansion valve based on the valve core jamming situation;

[0165] The first excitation control module 305 is used to perform excitation control operation on the electronic expansion valve according to the first excitation control parameters.

[0166] In this optional embodiment, the historical valve core usage parameters include at least one of the historical valve core operating conditions, historical valve core usage time parameters, and historical valve core usage mode parameters; the valve core jamming condition includes valve core jamming duration and / or valve core jamming frequency; the first excitation control parameters include first excitation control duration parameters and / or first excitation control intensity parameters.

[0167] It is evident that implementation Figure 4The described multi-source data coupling-based electronic expansion valve regulating device significantly improves the operational stability and reliability of heat pump units by introducing valve core jamming prediction and excitation control before electronic expansion valve regulation. Specifically, by quantifying historical valve core usage parameters, the risk of electronic expansion valve jamming is predicted, reducing the problem of superheat regulation failure caused by jamming. Simultaneously, matching differentiated excitation parameters to different degrees of jamming can effectively alleviate electronic expansion valve jamming of varying degrees, reducing the probability of core component failure and mitigating problems such as increased energy consumption and decreased heat exchange efficiency caused by valve core jamming; it also extends the service life of the electronic expansion valve, further ensuring the safe and efficient operation of the unit under dynamic conditions.

[0168] In yet another optional embodiment, the acquisition module 301 is further configured to:

[0169] After the adjustment module 303 adjusts the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter, it obtains the historical valve core usage parameters of the electronic expansion valve and the adjusted opening parameters of the electronic expansion valve.

[0170] The device also includes:

[0171] The second prediction module 306 is used to predict the valve core rebound parameters of the electronic expansion valve based on the historical valve core usage parameters and the adjusted opening parameters.

[0172] The determination module 302 is used to determine the second excitation control parameters of the electronic expansion valve based on the valve core springback parameters;

[0173] The second excitation control module 307 is used to perform excitation control operation on the electronic expansion valve according to the second excitation control parameters.

[0174] In this optional embodiment, the historical valve core usage parameters include at least one of the historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters; the adjusted opening parameters include the adjusted opening direction parameters and / or the adjusted opening size parameters; the valve core rebound parameters include the valve core rebound force parameters and / or the valve core rebound rate parameters; and the second excitation control parameters include the second excitation control duration parameters and / or the second excitation control intensity parameters.

[0175] It is evident that implementation Figure 4The described multi-source data coupling-based electronic expansion valve regulating device improves the accuracy and stability of superheat regulation in heat pump units by introducing valve core rebound prediction and secondary excitation control after regulating the electronic expansion valve. Specifically, by quantifying historical rebound data and combining it with the adjusted opening parameters, the rebound force / rate of the valve core is predicted, reducing the opening deviation caused by valve core rebound. Simultaneously, by matching differentiated excitation parameters for different rebound levels, the rebound trend of the valve core can be precisely suppressed, ensuring the valve core remains stable at the target position, reducing superheat fluctuations, and further guaranteeing the energy efficiency and stability of the heat pump unit during dynamic operation, extending the valve core's service life, and improving the overall system reliability.

[0176] Example 4

[0177] Please see Figure 5 , Figure 5 This is a schematic diagram of another electronic expansion valve regulating device based on multi-source data coupling disclosed in an embodiment of the present invention. Figure 5 As shown, the electronic expansion valve regulating device based on multi-source data coupling may include:

[0178] Memory 401 storing executable program code;

[0179] Processor 402 coupled to memory 401;

[0180] The processor 402 calls the executable program code stored in the memory 401 to execute the steps in the electronic expansion valve regulation method based on multi-source data coupling described in Embodiment 1 or Embodiment 2 of the present invention.

[0181] Example 5

[0182] This invention discloses a computer storage medium storing computer instructions. When these computer instructions are invoked, they are used to execute the steps in the electronic expansion valve regulation method based on multi-source data coupling described in Embodiment 1 or Embodiment 2 of this invention.

[0183] Example 6

[0184] This invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps in the electronic expansion valve regulation method based on multi-source data coupling described in Embodiment 1 or Embodiment 2.

[0185] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0186] Through the detailed description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-Erasable Programmable Read-Only Memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0187] Finally, it should be noted that the electronic expansion valve regulation method and device based on multi-source data coupling disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for regulating an electronic expansion valve based on multi-source data coupling, characterized in that, The method includes: Obtain the current operating parameters of the heat pump unit under the current operating mode, and obtain the indoor and outdoor environmental parameters of the heat pump unit; Based on the current operating parameters under the current operating mode, determine the reference superheat parameter of the heat pump unit, and based on the reference superheat parameter, the indoor environmental parameters, and the outdoor environmental parameters, determine the target superheat parameter of the heat pump unit. The current superheat parameter of the heat pump unit is obtained, and the electronic expansion valve of the heat pump unit is adjusted according to the superheat difference between the current superheat parameter and the target superheat parameter. The step of adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter includes: Based on the superheat difference between the current superheat parameter and the target superheat parameter, determine whether the superheat difference is within a preset superheat range; When it is determined that the superheat difference is not within the superheat range, the target operating parameters of the target device of the heat pump unit are obtained; the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser; Based on the superheat difference and the target operating parameters of the target device, the current refrigerant parameters of the heat pump unit are determined; the current refrigerant parameters include at least one of the current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters. Determine the safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser, and determine the adjustment parameters of the electronic expansion valve of the heat pump unit based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range of the condenser; The electronic expansion valve is adjusted according to the adjustment parameters of the electronic expansion valve; the adjustment parameters include at least one of the following: opening direction adjustment parameter, opening rate adjustment parameter, opening size adjustment parameter, and adjustment time parameter.

2. The electronic expansion valve adjustment method based on multi-source data coupling according to claim 1, characterized in that, Determining the target superheat parameter of the heat pump unit based on the reference superheat parameter, the indoor environmental parameter, and the outdoor environmental parameter includes: Obtain the user's expected body temperature parameters and location parameters for the heat pump unit; the expected body temperature parameters include expected body temperature parameters and / or expected body humidity parameters. The environmental difference between the indoor environmental parameters and the outdoor environmental parameters is calculated, and the baseline superheat parameter is corrected based on the environmental difference, the user's expected body temperature parameters, and the location parameters to obtain the target superheat parameter of the heat pump unit.

3. The electronic expansion valve adjustment method based on multi-source data coupling according to claim 1 or 2, characterized in that, Before adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter, the method further includes: Obtain the historical valve core usage parameters of the electronic expansion valve; the historical valve core usage parameters include at least one of the following: historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters; Based on the historical valve core usage parameters, predict the valve core jamming condition of the electronic expansion valve; the valve core jamming condition includes valve core jamming duration and / or valve core jamming frequency; Based on the valve core jamming condition, the first excitation control parameter of the electronic expansion valve is determined, and the electronic expansion valve is subjected to excitation control operation based on the first excitation control parameter; the first excitation control parameter includes a first excitation control duration parameter and / or a first excitation control intensity parameter.

4. The electronic expansion valve adjustment method based on multi-source data coupling according to claim 1 or 2, characterized in that, After adjusting the electronic expansion valve of the heat pump unit based on the superheat difference between the current superheat parameter and the target superheat parameter, the method further includes: Obtain the historical valve core usage parameters of the electronic expansion valve; the historical valve core usage parameters include at least one of the following: historical valve core operating status, historical valve core usage time parameters, and historical valve core usage mode parameters; The adjustment opening parameter of the electronic expansion valve is obtained, and the valve core rebound parameter of the electronic expansion valve is predicted based on the historical valve core usage parameters and the adjustment opening parameter; the adjustment opening parameter includes the adjustment opening direction parameter and / or the adjustment opening size parameter, and the valve core rebound parameter includes the valve core rebound force parameter and / or the valve core rebound rate parameter. Based on the valve core rebound parameters, the second excitation control parameters of the electronic expansion valve are determined, and the electronic expansion valve is subjected to excitation control operation based on the second excitation control parameters; the second excitation control parameters include the second excitation control duration parameter and / or the second excitation control intensity parameter.

5. The electronic expansion valve adjustment method based on multi-source data coupling according to claim 1, characterized in that, Determining the safe evaporation environment parameter range for the evaporator and the safe condensation pressure range for the condenser includes: The system obtains the first refrigerant parameters of the heat pump unit and the temperature limit parameters of the compressor's lubricating oil. Based on the first refrigerant parameters, it determines the lower threshold of the safe evaporation environment of the evaporator and the upper threshold of the safe evaporation environment of the evaporator based on the temperature limit parameters of the lubricating oil. The first refrigerant parameters include the refrigerant saturation pressure parameters. The second refrigerant parameters and the critical pressure parameters of the basic components of the heat pump unit are obtained; the second refrigerant parameters include the critical pressure parameter of the refrigerant and the refrigerant flow rate requirement parameter, and the basic components include the condenser and the compressor; based on the refrigerant flow rate requirement parameter, the lower limit threshold of the safe condensing pressure of the condenser is determined, and based on the critical pressure parameter of the refrigerant and the critical pressure parameters of the basic components, the upper limit threshold of the safe condensing pressure of the condenser is determined.

6. An electronic expansion valve regulating device based on multi-source data coupling, characterized in that, The device includes: The acquisition module is used to acquire the current operating parameters of the heat pump unit in the current operating mode, and to acquire the indoor and outdoor environmental parameters of the heat pump unit. The determination module is used to determine the reference superheat parameter of the heat pump unit based on the current operating parameters in the current operating mode, and to determine the target superheat parameter of the heat pump unit based on the reference superheat parameter, the indoor environmental parameters, and the outdoor environmental parameters. The acquisition module is also used to acquire the current superheat parameter of the heat pump unit; The adjustment module is used to adjust the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter; Specifically, the adjustment module adjusts the electronic expansion valve of the heat pump unit according to the superheat difference between the current superheat parameter and the target superheat parameter, including the following methods: Based on the superheat difference between the current superheat parameter and the target superheat parameter, determine whether the superheat difference is within a preset superheat range; When it is determined that the superheat difference is not within the superheat range, the target operating parameters of the target device of the heat pump unit are obtained; the target operating parameters of the target device include the current evaporation environment parameters of the evaporator and / or the current condensation pressure parameters of the condenser; Based on the superheat difference and the target operating parameters of the target device, the current refrigerant parameters of the heat pump unit are determined; the current refrigerant parameters include at least one of the current condenser state parameters, current condenser flow rate parameters, current condenser flow direction parameters, and current condenser temperature parameters. Determine the safe evaporation environment parameter range of the evaporator and the safe condensation pressure range of the condenser, and determine the adjustment parameters of the electronic expansion valve of the heat pump unit based on the current refrigerant parameters, the safe evaporation environment parameter range, and the safe condensation pressure range of the condenser; The electronic expansion valve is adjusted according to the adjustment parameters of the electronic expansion valve; the adjustment parameters include at least one of the following: opening direction adjustment parameter, opening rate adjustment parameter, opening size adjustment parameter, and adjustment time parameter.

7. An electronic expansion valve regulating device based on multi-source data coupling, characterized in that, The device includes: Memory containing executable program code; A processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the electronic expansion valve regulation method based on multi-source data coupling as described in any one of claims 1-5.

8. A computer storage medium, characterized in that, The computer storage medium stores computer instructions, which, when invoked, are used to execute the electronic expansion valve regulation method based on multi-source data coupling as described in any one of claims 1-5.

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