Condensation quality determination method and device, computer equipment and storage medium

Abstract

The invention relates to a condensation quality determination method and device, computer equipment and a storage medium. Determining the absolute humidity according to the temperature and the relative humidity of the internal space of the battery, and determining the condensation mass generated in the internal space according to the absolute humidity and the space volume of the internal space; the condensation mass is used to control condensation of the interior space of the battery. The generation of a small amount of condensation does not influence the function of the battery, so that the absolute humidity is determined through the temperature and the relative humidity, the condensation quality formed in the internal space is determined according to the absolute humidity and the space volume, and a matched condensation control strategy can be formulated according to the condensation quality, so that the condensation in the internal space of the battery is controlled; and battery faults are prevented.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a method, device, computer equipment and storage medium for determining condensation quality. Background Art

[0002] In actual battery applications, the battery is usually set in a sealed box, and a waterproof and breathable exchange structure is set on the box as a component to balance the internal and external pressures of the battery. After water vapor enters the internal space of the battery through the balancing valve, it condenses at locations such as electronic devices in the internal space to form condensation. Excessive condensation may cause battery failure.

[0003] At present, the condensation control strategy is generated by the dew point temperature and the interface temperature of the electronic device to control the generation of condensation to reduce the possibility of battery failure. For example, when the interface temperature is lower than the dew point temperature, the interface of the electronic device is heated by a heating device to control the generation of condensation.

[0004] However, the accuracy of controlling condensation by dew point temperature is currently low. Summary of the invention

[0005] Based on this, it is necessary to provide a condensation quality determination method, device, computer equipment and storage medium that can improve the accuracy of condensation control in order to address the above technical problems.

[0006] In a first aspect, the present application provides a method for determining condensation quality. The method comprises:

[0007] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0008] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0009] In the technical solution of the embodiment of the present application, the absolute humidity is determined according to the temperature and relative humidity of the internal space of the battery, and the quality of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation quality is used to control the condensation in the internal space of the battery. Since the generation of a small amount of condensation will not affect the function of the battery, the absolute humidity is determined by the temperature and relative humidity, and the quality of condensation formed in the internal space is determined according to the absolute humidity and the spatial volume. A matching condensation control strategy can be formulated according to the condensation quality, thereby controlling the condensation in the internal space of the battery and preventing battery failure.

[0010] In one embodiment, determining the quality of condensation generated in the interior space according to the absolute humidity and the spatial volume of the interior space includes:

[0011] Obtain the absolute humidity at at least two moments;

[0012] The quality of condensation generated in the interior space is determined according to the absolute humidity at at least two moments and the space volume of the interior space.

[0013] In the technical solution of the embodiment of the present application, the absolute humidity at at least two moments is obtained, and the condensation quality generated in the internal space is determined according to the absolute humidity at at least two moments and the spatial volume of the internal space. In the embodiment of the present application, the condensation quality is obtained by the absolute humidity at at least two moments and the spatial volume of the internal space, so that the determination of the condensation quality is more flexible.

[0014] In one embodiment, determining the condensation quality generated in the internal space according to the absolute humidity at at least two moments and the spatial volume of the internal space includes:

[0015] The absolute humidity at at least two moments and the spatial volume of the internal space are integrated to obtain the condensation mass generated in the internal space.

[0016] In the technical solution of the embodiment of the present application, the absolute humidity at at least two moments and the spatial volume of the internal space are integrated to obtain the mass of condensation generated in the internal space. In the embodiment of the present application, the mass of condensation is determined by integration to obtain the dynamic change of condensation mass inside the space, so that the result of the condensation mass is more accurate.

[0017] In one embodiment, the internal space includes a plurality of subspaces; and determining the condensation quality generated in the internal space according to the absolute humidity at at least two moments and the spatial volume of the internal space comprises:

[0018] For each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace;

[0019] The condensation quality generated in the inner space is determined according to the first condensation quality of each subspace.

[0020] In the technical solution of the embodiment of the present application, for each subspace, the first condensation mass of each subspace is obtained according to the absolute humidity at at least two moments and the spatial volume of the subspace, and the condensation mass generated in the internal space is determined according to the first condensation mass of each subspace. In the embodiment of the present application, since the internal space is divided into multiple subspaces, the result of the absolute humidity of each subspace is more accurate and more targeted. Based on the absolute humidity of the subspace, the first condensation mass of each subspace is determined to obtain the condensation mass of the internal space, thereby improving the accuracy of the condensation mass of the internal space.

[0021] In one embodiment, determining the absolute humidity based on the temperature and relative humidity of the internal space of the battery includes:

[0022] According to the temperature of the internal space, determine the saturated water vapor pressure of the internal space;

[0023] Determine the water vapor pressure in the air of the interior space based on the saturated water vapor pressure and the relative humidity of the interior space;

[0024] Determine the absolute humidity based on the temperature and the water vapor pressure in the air.

[0025] In the technical solution of the embodiment of the present application, the saturated water vapor pressure of the internal space is determined according to the temperature of the internal space, the water vapor pressure in the air of the internal space is determined according to the saturated water vapor pressure and the relative humidity of the internal space, and the absolute humidity is determined according to the temperature and the water vapor pressure in the air. In the embodiment of the present application, the absolute humidity is determined according to the temperature and relative humidity of the internal space, and the implementation method is simple, which can improve the efficiency of determining the absolute humidity.

[0026] In one embodiment, the method further comprises:

[0027] The condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold.

[0028] In the technical solution of the embodiment of the present application, the condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold. In the embodiment of the present application, an effective condensation control strategy can be formulated according to the condensation quality generated in the internal space obtained in real time to prevent battery failure.

[0029] In one embodiment, the preset condensation quality thresholds include a first condensation quality threshold, a second condensation quality threshold, and a third condensation quality threshold; and according to the condensation quality and the preset condensation quality thresholds, determining a condensation control strategy includes:

[0030] If the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, a first prompt message is output; the first prompt message is used to indicate that the condensation quality is between the first condensation quality threshold and the second condensation quality threshold;

[0031] If the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, a second prompt message is output; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery was before being transferred;

[0032] If the condensation quality is greater than or equal to the third condensation quality threshold, a dehumidification operation is performed on the internal space.

[0033] In the technical solution of the embodiment of the present application, the condensation quality is compared with different condensation quality thresholds to obtain the relationship between the condensation quality and each condensation quality threshold. Different condensation control strategies are formulated for different relationships, so that the determined condensation control strategy is more targeted and the prevention of battery failure is more accurate.

[0034] In one embodiment, performing a dehumidification operation on an internal space includes:

[0035] If the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification condition is met, a dehumidification operation is performed on the internal space.

[0036] In the technical solution of the embodiment of the present application, if the condensation mass is greater than or equal to the third preset condensation mass threshold and the preset dehumidification conditions are met, the internal space is dehumidified, thereby improving the safety of the dehumidification operation.

[0037] In one embodiment, performing a dehumidification operation on an internal space includes:

[0038] Control the battery to charge at a preset rate of maximum charging power, or control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or control the thermal management system of the battery to dehumidify the internal space.

[0039] In the technical solution of the embodiment of the present application, the battery is controlled to charge at a preset multiple of the maximum charging power, or the battery is controlled to discharge at a preset multiple of the maximum discharging power, or the thermal management system of the battery is controlled to perform a dehumidification operation on the internal space. Since the use of an additional block device to heat the interface of the electronic device in the traditional technology only delays the time of condensation, water vapor still exists in the relatively closed battery. When the heating device stops working, high-humidity gas is still prone to condensation at various interfaces. The embodiment of the present application can reduce the relative humidity of the internal space of the battery through the dehumidification operation, but it does not delay the time of condensation.

[0040] In one embodiment, controlling the thermal management system of the battery to perform a dehumidification operation on the internal space includes any one of the following:

[0041] Controlling the thermal management system of the battery to heat the interior space to dehumidify the interior space;

[0042] The thermal management system of the battery is controlled to operate in a cooling mode at a preset power to dehumidify the interior space.

[0043] In the technical solution of the embodiment of the present application, the thermal management system of the battery is controlled to perform a dehumidification operation on the internal space, including any of the following: the thermal management system of the battery is controlled to heat the internal space to perform a dehumidification operation on the internal space; the thermal management system of the battery is controlled to operate in a cooling mode at a preset power to perform a dehumidification operation on the internal space. The embodiment of the present application uses the thermal management system of the battery to perform a dehumidification operation on the internal space, without the need for additional dehumidification equipment, thereby simplifying the dehumidification operation process and reducing the relative humidity of the internal space of the battery.

[0044] In one embodiment, the method further comprises:

[0045] If the preset dehumidification operation stop condition is met, the dehumidification operation of the internal space is stopped.

[0046] In one embodiment, the preset dehumidification stop condition is met, including any one of the following:

[0047] The space temperature of the internal space is greater than or equal to the preset temperature;

[0048] The relative humidity of the internal space is less than or equal to the preset humidity;

[0049] The battery level is less than or equal to the preset level.

[0050] In the technical solution of the embodiment of the present application, if the preset dehumidification operation stop condition is met, the dehumidification operation on the internal space is stopped, thereby improving the safety of battery operation.

[0051] In one embodiment, a one-way valve is provided on the battery box, and the method further comprises:

[0052] When the thermal management system of the battery operates in a cooling mode at a preset power, condensation in the internal space is discharged to the outside of the box through the one-way valve.

[0053] In the technical solution of the embodiment of the present application, when the thermal management system of the battery operates in the cooling mode at a preset power, the condensation in the internal space is discharged to the outside of the box through the one-way valve. In the embodiment of the present application, the humidity control of the internal space of the battery is achieved by the thermal management system and the auxiliary additional drainage system, which weakens the conditions for the condensation in the internal space of the battery.

[0054] In a second aspect, the present application also provides a management system for an electrical device, the management system for the electrical device comprising a control system and a thermal management system;

[0055] A control system, used to execute the steps of any one of the methods provided in the first aspect above;

[0056] The thermal management system is used to heat the internal space of the battery or operate in a cooling mode at a preset power when receiving a control signal sent by the control system.

[0057] In the technical solution of the embodiment of the present application, the management system of the electric device provided by the present application includes a control system and a thermal management system; the control system is used to execute the steps of any one of the methods provided in the first aspect above; the thermal management system is used to heat the internal space of the battery or operate in a cooling mode with a preset power when receiving a control signal sent by the control system. In the embodiment of the present application, the internal space of the battery is dehumidified according to the control system and the thermal management system, which can ensure the stable operation of the battery throughout its life cycle.

[0058] In a third aspect, the present application further provides a condensation quality determination device, the device comprising:

[0059] A first determination module, configured to determine the absolute humidity according to the temperature and relative humidity of the internal space of the battery;

[0060] The second determination module is used to determine the mass of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0061] In a fourth aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0062] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0063] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0064] In a fifth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0065] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0066] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0067] In a sixth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0068] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0069] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0070] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0072] Figure 1 A diagram of the application environment of the method for determining condensation quality provided in an embodiment of the present application;

[0073] Figure 2 A schematic diagram of a flow chart of a method for determining condensation quality provided in an embodiment of the present application;

[0074] Figure 3 A schematic flow chart of a method for determining the quality of condensation generated in an internal space provided in an embodiment of the present application;

[0075] Figure 4 A schematic flow chart of a method for determining the quality of condensation generated in an internal space provided in another embodiment of the present application;

[0076] Figure 5 A schematic diagram of a subspace provided in an embodiment of the present application;

[0077] Figure 6 A schematic diagram of a flow chart of a method for determining absolute humidity provided in an embodiment of the present application;

[0078] Figure 7 A diagram of an application environment of a method for determining condensation quality provided in another embodiment of the present application;

[0079] Figure 8 A schematic diagram of a one-way valve provided in an embodiment of the present application;

[0080] Fig. 9 A schematic diagram of a one-way valve provided in another embodiment of the present application;

[0081] Fig.10A schematic flow chart of a method for determining condensation quality provided in another embodiment of the present application;

[0082] Fig.11 is a first structural block diagram of a condensation quality determination device in one embodiment;

[0083] Fig.12 is a second structural block diagram of a condensation quality determination device in one embodiment;

[0084] Fig.13 is a third structural block diagram of a condensation quality determination device in one embodiment;

[0085] Fig.14 is a fourth structural block diagram of a condensation quality determination device in one embodiment;

[0086] Fig.15 is a fifth structural block diagram of a condensation quality determination device in one embodiment;

[0087] Fig.16 is a sixth structural block diagram of a condensation quality determination device in one embodiment;

[0088] Fig.17 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment.

[0089] Description of reference numerals:

[0090] 100. Power-consuming device; 10. Control system; 20. Switching structure;

[0091] 30. thermal management system; 40. battery cell; 101. first control system;

[0092] 102. Second control system; 301. Ramp module;

[0093] 50. One-way valve; 501. Spring module; 502. Switch module;

[0094] 200, condensation; 300, dehumidification structure. DETAILED DESCRIPTION

[0095] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0096] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0097] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0098] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0099] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0100] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0101] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0102] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0103] In actual battery applications, the battery is usually set in a sealed box, and a waterproof and breathable balance valve is set on the box as a component to balance the internal and external pressures of the battery. After water vapor enters the internal space of the battery through the balance valve, it condenses at locations such as electronic devices in the internal space to form condensation. Excessive condensation may cause battery failure.

[0104] At present, the generation of condensation is controlled by the dew point temperature and the interface temperature of the electronic device to reduce the possibility of battery failure. For example, when the interface temperature is lower than the dew point temperature, the interface of the electronic device is heated by a heating device to control the generation of condensation to reduce the possibility of battery failure.

[0105] However, currently, the generation of condensation is controlled by dew point temperature, and the accuracy of determining whether a battery failure has occurred is low.

[0106] In order to solve the above problems, the embodiment of the present application provides a method for determining the condensation quality, which determines the absolute humidity according to the temperature and relative humidity of the internal space of the battery, and determines the condensation quality generated in the internal space according to the absolute humidity and the spatial volume of the internal space; the condensation quality is used to control the condensation in the internal space of the battery. Since the generation of a small amount of condensation will not affect the function of the battery, the absolute humidity is determined by the temperature and relative humidity, and the condensation quality formed in the internal space is determined according to the absolute humidity and the spatial volume. A matching condensation control strategy can be formulated according to the condensation quality, thereby controlling the condensation in the internal space of the battery and preventing battery failure.

[0107] The condensation quality determination method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. Figure 1The application environment diagram of the determination method provided in the embodiment of the present application is a schematic diagram of an electric device 100, the electric device 100 includes a control system 10, a thermal management system 30 and a battery cell 40, etc. The battery is arranged in the electric device 100, the thermal management system 30 and the battery cell 40 are located inside the battery, and an exchange structure 20 for the air inside and outside the battery is arranged on the box body, and the exchange structure 20 can be constructed as a hole, a groove, a channel or a window for connecting the air inside and outside the battery. A valve, a dehumidifier, and an air pump are arranged on the exchange structure 20 for heat dissipation, condensation of water vapor, balance of air pressure or control of the air flow inside and outside the battery. The control system controls the water vapor to form condensation on the interface of other electronic devices such as the battery cell 40 according to the relative humidity and temperature. Optionally, the control system 10 may include a first control system 101 and a second control system 102, the first control system 101 may be a battery management system (Battery Management System, BMS), a battery monitoring unit (Cell Supervision Circuit, CSC), etc.; the second control system may be a vehicle-mounted communication unit 102 (Vehicular Communication Unit, VCU).

[0108] In order to introduce the embodiments of the present application more clearly, Figure 2 In one embodiment, Figure 2 is a flow chart of a method for determining condensation quality provided in an embodiment of the present application, such as Figure 2 As shown, a method for determining condensation quality is provided, which is applied to Figure 1 Specifically, the first control system in the control system is taken as an example for explanation, which may include the following steps:

[0109] S201, determining absolute humidity according to the temperature and relative humidity of the internal space of the battery.

[0110] In the embodiment of the present application, a temperature sensor and a humidity sensor are placed in the internal space of the battery to obtain the temperature and relative humidity of the internal space. Optionally, a temperature sensor and a humidity sensor may be placed in the internal space, or the internal space may be divided into multiple subspaces, and a temperature sensor and a humidity sensor are placed in each subspace to obtain the temperature and relative humidity of the corresponding subspace.

[0111] Relative humidity refers to the percentage of absolute humidity to saturated humidity at a specific temperature. Absolute humidity refers to the actual mass of water vapor contained in a unit volume of air at a specific temperature, and saturated humidity is the maximum mass of water vapor that can be carried by a unit volume of air at a specific temperature. If the saturated humidity is exceeded, the water vapor will liquefy.

[0112] Based on the temperature and relative humidity of the internal space of the battery, the absolute humidity can be determined in the following ways:

[0113] Since relative humidity is a known measurement value at a specific temperature, the maximum mass of water vapor that can be carried by air per unit volume, that is, the saturation humidity, is also a known measurement value. The absolute humidity can be determined based on the product of relative humidity and saturation humidity.

[0114] S202, determining the mass of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control condensation in the internal space of the battery.

[0115] Within a certain period of time, the total amount of water molecules in the internal space of the battery pack is fixed, existing in the form of condensation and water vapor. The mass of the water vapor part = absolute humidity AH * space volume V. Within a certain period of time, the amount of mass reduction of the water vapor part is the mass of the newly generated condensation. Therefore, the mass of condensation generated in the internal space is determined based on the absolute humidity and the space volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery, which can be achieved in the following ways:

[0116] In one possible implementation, during the time period t1-t2, the absolute humidity and the spatial volume at time t1 are multiplied to obtain the first water vapor mass of the water vapor at time t1, and the absolute humidity and the spatial volume at time t2 are multiplied to obtain the second water vapor mass of the water vapor at time t2. The condensation mass generated at time t1-t2 is obtained based on the difference between the first water vapor mass and the second water vapor mass.

[0117] In a possible implementation, within the time period t1-t2, the t1-t2 period can be further divided into a plurality of sub-periods, and the condensation mass generated in the t1-t2 period can be obtained according to the condensation mass of each sub-period. Exemplarily, the t1-t2 period is divided into four sub-periods, and the condensation mass of each sub-period is obtained according to the change in absolute humidity and the spatial volume of each sub-period. The condensation mass generated in each sub-period is summed to obtain the condensation mass generated in the t1-t2 period.

[0118] In an embodiment of the present application, the condensation quality is used to control the condensation in the internal space of the battery. The condensation quality can be compared with a preset condensation quality threshold. If the condensation quality is greater than the preset condensation quality threshold, the internal space is dehumidified to control the impact of condensation in the internal space on the battery.

[0119] In the technical solution of the embodiment of the present application, the absolute humidity is determined according to the temperature and relative humidity of the internal space of the battery, and the quality of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation quality is used to control the condensation in the internal space of the battery. Since the generation of a small amount of condensation will not affect the function of the battery, the absolute humidity is determined by the temperature and relative humidity, and the quality of condensation formed in the internal space is determined according to the absolute humidity and the spatial volume. A matching condensation control strategy can be formulated according to the condensation quality, thereby controlling the condensation in the internal space of the battery and preventing battery failure.

[0120] Figure 3 A flow chart of a method for determining the quality of condensation generated in an internal space provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the embodiment of the present application relates to a possible implementation method of how to determine the quality of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space. The above S202 includes:

[0121] S301, obtaining absolute humidity at at least two moments.

[0122] In the embodiment of the present application, by acquiring the temperature and relative humidity at at least two moments, the absolute humidity at at least two moments is obtained according to the temperature and relative humidity at at least two moments.

[0123] S302: Determine the mass of condensation generated in the internal space according to the absolute humidity at at least two moments and the spatial volume of the internal space.

[0124] In an embodiment of the present application, the quality of condensation generated in the internal space is determined based on the absolute humidity at at least two moments and the spatial volume of the internal space. Exemplarily, in the time period t0-t2, the time period t0-t2 is divided into two sub-time periods, namely the t0-t1 sub-time period and the t1-t2 sub-time period. The absolute humidity at moments t0, t1, and t2 is obtained, and the condensation quality of the t0-t1 sub-time period is obtained based on the absolute humidity at moment t0, the absolute humidity at moment t1, and the spatial volume; the condensation quality of the t1-t2 sub-time period is obtained based on the absolute humidity at moment t1, the absolute humidity at moment t2, and the spatial volume, and the condensation quality of the t1-t2 sub-time period is accumulated in the t0-t1 sub-time period and the condensation quality of the t1-t2 sub-time period to obtain the condensation quality of the t0-t2 time period.

[0125] In the technical solution of the embodiment of the present application, the absolute humidity at at least two moments is obtained, and the condensation quality generated in the internal space is determined according to the absolute humidity at at least two moments and the spatial volume of the internal space. In the embodiment of the present application, the condensation quality is obtained by the absolute humidity at at least two moments and the spatial volume of the internal space, so that the determination of the condensation quality is more flexible.

[0126] According to some embodiments of the present application, the mass of condensation generated in the internal space is determined based on the absolute humidity at at least two moments and the spatial volume of the internal space, including: integrating the absolute humidity at at least two moments and the spatial volume of the internal space to obtain the mass of condensation generated in the internal space.

[0127] In an embodiment of the present application, the absolute humidity at at least two moments and the spatial volume of the internal space are integrated to obtain the condensation quality generated in the internal space. Exemplarily, in the time period t1-t2, the temperature and relative humidity at multiple moments in the time period t1-t2 are obtained in real time, the absolute humidity corresponding to the multiple moments is obtained according to the temperature and relative humidity at the multiple moments, and the absolute humidity at the multiple moments and the spatial volume of the internal space are integrated to obtain the condensation quality generated in the internal space.

[0128] In the technical solution of the embodiment of the present application, the absolute humidity at at least two moments and the spatial volume of the internal space are integrated to obtain the mass of condensation generated in the internal space. In the embodiment of the present application, the mass of condensation is determined by integration to obtain the dynamic change of condensation mass inside the space, so that the result of the condensation mass is more accurate.

[0129] Figure 4 A flow chart of a method for determining the quality of condensation generated in an internal space provided in another embodiment of the present application is shown as follows: Figure 4 As shown, the embodiment of the present application relates to a possible implementation method of how to determine the quality of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space. The above S302 includes:

[0130] S401 , for each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace.

[0131] The internal space can be divided to obtain multiple subspaces, and the internal space can be divided evenly or unevenly. Figure 5 As shown, Figure 5 A schematic diagram of a subspace provided in an embodiment of the present application divides the internal space into four subspaces.

[0132] In the embodiment of the present application, for each subspace, the implementation method of S302 is adopted to obtain the first condensation mass of each subspace.

[0133] S402: Determine the condensation mass generated in the internal space according to the first condensation mass of each subspace.

[0134] In the embodiment of the present application, determining the condensation quality generated in the internal space according to the first condensation quality of each subspace can be achieved in the following manner:

[0135] In a possible implementation, the first condensation mass of each subspace may be summed to obtain the condensation mass generated in the internal space.

[0136] In a possible implementation, the first condensation mass of each subspace is weighted and summed to obtain the condensation mass generated in the internal space. Exemplarily, according to the distance relationship between each subspace and the electronic device of the battery, the first condensation mass of each subspace is weighted and summed to obtain the condensation mass generated in the internal space; or, according to the size of the subspace division, etc., the first condensation mass of each subspace is weighted and summed to obtain the condensation mass generated in the internal space.

[0137] Combining the above S401 and S402, the condensation mass m generated in the internal space can be expressed by the following formula: The absolute humidity calculated at time t1 of subspace i is AH1_i, and the absolute humidity calculated at time t2 is AH2_i. Vi is the volume of subspace i.

[0138] In the technical solution of the embodiment of the present application, for each subspace, the first condensation mass of each subspace is obtained according to the absolute humidity at at least two moments and the spatial volume of the subspace, and the condensation mass generated in the internal space is determined according to the first condensation mass of each subspace. In the embodiment of the present application, since the internal space is divided into multiple subspaces, the result of the absolute humidity of each subspace is more accurate and more targeted. Based on the absolute humidity of the subspace, the first condensation mass of each subspace is determined to obtain the condensation mass of the internal space, thereby improving the accuracy of the condensation mass of the internal space.

[0139] Figure 6 A schematic diagram of a process for determining absolute humidity provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the embodiment of the present application relates to a possible implementation method of how to determine the absolute humidity according to the temperature and relative humidity of the internal space of the battery. The above S201 includes:

[0140] S601, determining the saturated water vapor pressure of the internal space according to the temperature of the internal space.

[0141] Among them, the saturated water vapor pressure determines the temperature when the water vapor exists in liquid or gas state. The saturated water vapor pressure is different when the temperature of the internal space is different.

[0142] In the embodiment of the present application, the saturated water vapor pressure P of the internal space is determined according to the temperature T of the internal space.饱和 , can be determined by:

[0143] S602: Determine the water vapor pressure in the air of the internal space according to the saturated water vapor pressure and the relative humidity of the internal space.

[0144] In the embodiment of the present application, according to the saturated water vapor pressure P 饱和 And the relative humidity RH of the interior space, determine the water vapor pressure P in the air of the interior space, which can be determined by public announcement:

[0145] S603, determining the absolute humidity according to the temperature and the water vapor pressure in the air.

[0146] In the embodiment of the present application, according to the temperature T and the water vapor pressure P in the air, the absolute humidity AH can be determined by public expression:

[0147]

[0148] In the technical solution of the embodiment of the present application, the saturated water vapor pressure of the internal space is determined according to the temperature of the internal space, the water vapor pressure in the air of the internal space is determined according to the saturated water vapor pressure and the relative humidity of the internal space, and the absolute humidity is determined according to the temperature and the water vapor pressure in the air. In the embodiment of the present application, the absolute humidity is determined according to the temperature and relative humidity of the internal space, and the implementation method is simple, which can improve the efficiency of determining the absolute humidity.

[0149] According to some embodiments of the present application, the condensation quality determination method further includes: determining a condensation control strategy according to the condensation quality and a preset condensation quality threshold.

[0150] Optionally, the condensation quality threshold may be one condensation quality threshold or multiple condensation quality thresholds. The condensation control strategy may be outputting prompt information or performing a dehumidification operation.

[0151] In the embodiment of the present application, if the condensation quality threshold is a condensation quality threshold, the dehumidification operation can be performed when the condensation quality is greater than the condensation quality threshold.

[0152] If the condensation quality threshold is a plurality of condensation quality thresholds, different condensation control strategies may be determined according to the relationship between the condensation quality and each condensation quality threshold.

[0153] In the technical solution of the embodiment of the present application, the condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold. In the embodiment of the present application, an effective condensation control strategy can be formulated according to the condensation quality generated in the internal space obtained in real time to prevent battery failure.

[0154] According to some embodiments of the present application, a condensation control strategy is determined according to the condensation quality and a preset condensation quality threshold, including the following three situations:

[0155] The first case: if the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, the first prompt information is output; the first prompt information is used to indicate that the quality of the condensation is between the first condensation quality threshold and the second condensation quality threshold.

[0156] In an embodiment of the present application, if the condensation mass is greater than or equal to the first condensation mass threshold and less than the second condensation mass threshold, a first prompt message is output, indicating that only a small amount of condensation is generated in the internal space and the condensation will not affect the function of the battery.

[0157] The second case: if the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, the second prompt information is output; the second prompt information is used to indicate that the battery is transferred to the target location; the dryness of the target location is greater than the dryness of the location where the battery was located before the transfer.

[0158] In an embodiment of the present application, if the condensation mass is greater than or equal to the second condensation mass threshold and less than the third condensation mass threshold, a second prompt message is output, indicating that a lot of condensation is generated in the internal space and the battery needs to be transferred to a dry environment.

[0159] The third case: if the condensation quality is greater than or equal to the third condensation quality threshold, the internal space is dehumidified.

[0160] In an embodiment of the present application, if the condensation mass is greater than or equal to a third condensation mass threshold, indicating that the condensation may affect the function of the battery, the first control system sends a prompt message to the second control system, and the second control system performs a dehumidification operation on the internal space.

[0161] The first condensation quality threshold, the second condensation quality threshold and the third condensation quality threshold are determined according to conditions such as creepage distance and electrical clearance of different batteries.

[0162] In the technical solution of the embodiment of the present application, the condensation quality is compared with different condensation quality thresholds to obtain the relationship between the condensation quality and each condensation quality threshold. Different condensation control strategies are formulated for different relationships, so that the determined condensation control strategy is more targeted and the prevention of battery failure is more accurate.

[0163] According to some embodiments of the present application, the third situation mentioned above also includes: if the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification conditions are met, a dehumidification operation is performed on the internal space.

[0164] In an embodiment of the present application, the first control system sends a prompt message to the second control system, indicating that the condensation quality is greater than or equal to a third preset condensation quality threshold and a dehumidification operation is required. The second control system determines whether the current electrical device meets the preset dehumidification conditions. If the preset dehumidification conditions are met, a dehumidification operation is performed on the internal space.

[0165] Optionally, the preset dehumidification condition may be that the parameters of other components connected to the battery meet the preset parameters; the vehicle in which the battery is installed is not in the parking process, etc.

[0166] In the technical solution of the embodiment of the present application, if the condensation mass is greater than or equal to the third preset condensation mass threshold and the preset dehumidification conditions are met, the internal space is dehumidified, thereby improving the safety of the dehumidification operation.

[0167] According to some embodiments of the present application, the second control system performs a dehumidification operation on the internal space, including: controlling the battery to charge at a preset rate of the maximum charging power, or controlling the battery to discharge at a preset rate of the maximum discharge power, so as to dehumidify the internal space; or controlling the battery's thermal management system to perform a dehumidification operation on the internal space.

[0168] In an embodiment of the present application, the second control system can control the load to be forced to turn on, so that the battery can discharge at 1 / 3 times the maximum discharge power to heat the air in the battery's internal space; or, charge at 1 / 3 times the maximum charging power to heat the air in the battery's internal space to achieve dehumidification of the internal space.

[0169] The thermal management system of the battery is controlled to dehumidify the internal space, the thermal management system can be controlled to heat the air, or the thermal management system can be controlled to work in a cooling mode to cool the hot and humid air to achieve dehumidification of the internal space.

[0170] In the technical solution of the embodiment of the present application, the battery is controlled to charge at a preset multiple of the maximum charging power, or the battery is controlled to discharge at a preset multiple of the maximum discharging power, or the thermal management system of the battery is controlled to perform a dehumidification operation on the internal space. Since the use of an additional block device to heat the interface of the electronic device in the traditional technology only delays the time of condensation, water vapor still exists in the relatively closed battery. When the heating device stops working, high-humidity gas is still prone to condensation at various interfaces. The embodiment of the present application can reduce the relative humidity of the internal space of the battery through the dehumidification operation, but it does not delay the time of condensation.

[0171] According to some embodiments of the present application, controlling the thermal management system of the battery to perform a dehumidification operation on the internal space includes any one of the following: controlling the thermal management system of the battery to heat the internal space to perform a dehumidification operation on the internal space; controlling the thermal management system of the battery to operate in a cooling mode at a preset power to perform a dehumidification operation on the internal space.

[0172] In the embodiment of the present application, the thermal management system of the battery is controlled to dehumidify the internal space in the following two ways:

[0173] The first method is to control the thermal management system of the battery to heat the internal space to dehumidify the internal space.

[0174] The second method is to control the thermal management system of the battery to operate in cooling mode at a preset power to dehumidify the internal space. For example, the thermal management system is controlled to operate at maximum power to cool the internal space, so that the hot and humid air in the internal space condenses into liquid at the thermal management system to form condensation, which is then discharged to the outside of the battery.

[0175] In the technical solution of the embodiment of the present application, the thermal management system of the battery is controlled to perform a dehumidification operation on the internal space, including any of the following: the thermal management system of the battery is controlled to heat the internal space to perform a dehumidification operation on the internal space; the thermal management system of the battery is controlled to operate in a cooling mode at a preset power to perform a dehumidification operation on the internal space. The embodiment of the present application uses the thermal management system of the battery to perform a dehumidification operation on the internal space, without the need for additional dehumidification equipment, thereby simplifying the dehumidification operation process and reducing the relative humidity of the internal space of the battery.

[0176] According to some embodiments of the present application, the method further includes: if a preset dehumidification operation stop condition is met, stopping the dehumidification operation on the internal space.

[0177] The preset dehumidification stop conditions are met, including any one of the following: the space temperature of the internal space is greater than or equal to the preset temperature; the relative humidity of the internal space is less than or equal to the preset humidity; the battery power is less than or equal to the preset power.

[0178] In the embodiment of the present application, if any of the above-mentioned preset dehumidification operation stop conditions is met, the dehumidification operation of the internal space is stopped. For example, if the temperature reaches 40°C, the dehumidification operation of the internal space is stopped; if the relative humidity RH monitored by the humidity sensor of each subspace is ≤30%, the dehumidification operation of the internal space is stopped.

[0179] In the technical solution of the embodiment of the present application, if the preset dehumidification operation stop condition is met, the dehumidification operation on the internal space is stopped, thereby improving the safety of battery operation.

[0180] According to some embodiments of the present application, the method further includes: when the thermal management system of the battery operates in a cooling mode at a preset power, discharging condensation in the internal space to the outside of the box through a one-way valve.

[0181] In the embodiments of the present application, Figure 7 As shown, Figure 7 This is an application environment diagram of the condensation quality determination method provided by another embodiment of the present application, such as Figure 7 As shown, the battery box includes a dehumidification structure 300, which includes a one-way valve 50 and a ramp module 301. The ramp module 301 is exposed in the internal space of the battery and is connected to the thermal management system 30. When the thermal management system 30 of the battery operates in the cooling mode at a preset power, the hot and humid air forms condensation on the ramp module 301, as shown in FIG. Figure 8 and Fig. 9 As shown, Figure 8 A schematic diagram of a dehumidification structure provided in an embodiment of the present application, Fig. 9 Schematic diagram of a dehumidification structure provided in another embodiment of the present application. The condensation 200 formed on the slope module 301 flows into the switch module 502 of the one-way valve along the slope module 301. Under the gravity of the condensation 200, the condensation 200 is guided to the outside of the battery by compressing the spring module 501, thereby achieving humidity control of the internal space of the battery. After the dehumidification operation is completed, that is, after the condensation 200 is discharged from the battery, the spring module 501 rebounds and the switch module 502 is closed, so that the battery is in a sealed state.

[0182] Optionally, multiple ramp modules and multiple one-way valves may be provided on the thermal management system.

[0183] In the technical solution of the embodiment of the present application, when the thermal management system of the battery operates in the cooling mode at a preset power, the condensation in the internal space is discharged to the outside of the box through the one-way valve. In the embodiment of the present application, the humidity control of the internal space of the battery is achieved by the thermal management system and the auxiliary additional drainage system, which weakens the conditions for the condensation in the internal space of the battery.

[0184] According to some embodiments of the present application, the present application further provides a management system for an electrical device, the management system for the electrical device comprising a control system and a thermal management system;

[0185] A control system for executing the steps of any one of the methods provided in the first aspect above; a first control system in the control system determines the absolute humidity according to the temperature and relative humidity of the internal space of the battery, determines the mass of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space, and determines the condensation control strategy according to the condensation mass and a preset condensation mass threshold. A second control system in the control system performs a dehumidification operation on the internal space when the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification condition is met.

[0186] The thermal management system is used to heat the internal space of the battery or operate in a cooling mode with a preset power when receiving a control signal sent by the second control system in the control system.

[0187] Fig.10 A flow chart of a method for determining condensation quality provided in another embodiment of the present application includes the following steps:

[0188] S1001, determining the saturated water vapor pressure of the internal space according to the temperature of the internal space;

[0189] S1002, determining the water vapor pressure in the air of the internal space according to the saturated water vapor pressure and the relative humidity of the internal space;

[0190] S1003, determine the absolute humidity based on the temperature and the water vapor pressure in the air;

[0191] S1004, integrating the absolute humidity at at least two moments and the spatial volume of the internal space to obtain the mass of condensation generated in the internal space;

[0192] In the embodiment of the present application, any one of the following steps S1005, S1006 and S1007 is performed according to the relationship between the condensation quality and the first condensation quality threshold, the second condensation quality threshold and the third condensation quality threshold.

[0193] S1005: if the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, output a first prompt message; the first prompt message is used to indicate that the condensation quality is between the first condensation quality threshold and the second condensation quality threshold;

[0194] S1006, if the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, output a second prompt information; the second prompt information is used to indicate that the battery is transferred to the target location; the dryness of the target location is greater than the dryness of the location where the battery is located before the transfer;

[0195] S1007, if the condensation mass is greater than or equal to a third preset condensation mass threshold value and the preset dehumidification condition is met, control the battery to charge at a preset multiple of the maximum charging power, or control the battery to discharge at a preset multiple of the maximum discharging power to dehumidify the internal space; control the thermal management system of the battery to heat the internal space to dehumidify the internal space; control the thermal management system of the battery to operate in a cooling mode at a preset power to dehumidify the internal space;

[0196] S1008: If the preset dehumidification operation stop condition is met, the dehumidification operation of the internal space is stopped.

[0197] In an embodiment of the present application, when the preset dehumidification operation stop condition is met, the dehumidification operation on the internal space is stopped, the condensation mass is reset to zero, and the above-mentioned step S1001 is executed again.

[0198] In the technical solution of the embodiment of the present application, since the generation of a small amount of condensation will not affect the function of the battery, the absolute humidity is determined by the temperature and relative humidity, and the quality of condensation formed in the internal space is determined according to the absolute humidity and the spatial volume. A matching condensation control strategy can be formulated according to the condensation quality to control the condensation in the internal space of the battery and prevent battery failure.

[0199] In an embodiment of the present application, the present application further provides a battery, the battery including a control system and a thermal management system. The control system obtains the temperature and relative humidity of the internal space, determines the absolute humidity according to the temperature and the relative humidity, and obtains the condensation mass of the internal space according to the absolute humidity and the volume of the internal space. When the condensation mass is greater than the third condensation mass threshold, the control system controls the battery to charge and discharge or controls the thermal management system to perform a dehumidification operation.

[0200] In an embodiment of the present application, the present application also provides a battery measurement and control system, which includes a temperature sensor, a humidity sensor, a control system, a thermal management system, and a battery cell. The temperature sensor and the humidity sensor are arranged in the internal space of the battery. If the internal space is divided into multiple subspaces, a temperature sensor and a humidity sensor are arranged in each subspace.

[0201] The relative humidity of the interior space is obtained by using a humidity sensor, and the temperature of the interior space is obtained by using a temperature sensor. The relative humidity and temperature are sent to the control system, which determines the absolute humidity based on the temperature and relative humidity, and determines the mass of condensation based on the absolute humidity and the spatial volume of the interior space.

[0202] When the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, the control system outputs a first prompt message; the first prompt message is used to indicate that the quality of the condensation is between the first condensation quality threshold and the second condensation quality threshold; when the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, the control system outputs a second prompt message; the second prompt message is used to indicate that the battery is transferred to the target position; the dryness of the target position is greater than the dryness of the position where the battery was located before the transfer; when the condensation quality is greater than the third condensation quality threshold, the control system controls the battery charging and discharging or controls the thermal management system to perform a dehumidification operation.

[0203] In order to avoid the battery repeatedly outputting prompt information, after the dehumidification operation is completed, the control system resets the condensation mass to zero, re-acquires the temperature and relative humidity of the internal space collected by the temperature sensor and the humidity sensor, determines the new condensation mass based on the temperature and relative humidity, and performs the next dehumidification operation based on the new condensation mass.

[0204] In the technical solution of the embodiment of the present application, the battery provided by the present application includes a control system and a thermal management system; the control system is used to execute the steps of any one of the methods provided in the first aspect above; the thermal management system is used to heat the internal space of the battery or operate in a cooling mode with a preset power when receiving a control signal sent by the control system. In the embodiment of the present application, the internal space of the battery is dehumidified according to the control system and the thermal management system, which can ensure the stable operation of the battery throughout its life cycle.

[0205] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0206] Based on the same inventive concept, the embodiment of the present application also provides a condensation quality determination device for implementing the above-mentioned condensation quality determination method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in one or more condensation quality determination device embodiments provided below can refer to the limitations of the condensation quality determination method above, and will not be repeated here.

[0207] In one embodiment, Fig.11 As shown, a condensation quality determination device is provided, comprising: a first determination module 11 and a second determination module 12, wherein:

[0208] A first determination module 11 is used to determine the absolute humidity according to the temperature and relative humidity of the internal space of the battery;

[0209] The second determination module 12 is used to determine the mass of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0210] In one embodiment, Fig.12 As shown, the second determination module 12 includes:

[0211] An acquisition unit 121, used to acquire absolute humidity at at least two moments;

[0212] The first determining unit 122 is configured to determine the mass of condensation generated in the internal space according to the absolute humidity at at least two moments and the spatial volume of the internal space.

[0213] In one embodiment, the first determining unit is further used to integrate the absolute humidity at at least two moments and the spatial volume of the internal space to obtain the condensation mass generated in the internal space.

[0214] In one embodiment, the first determining unit is further used to obtain, for each subspace, a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace;

[0215] The condensation quality generated in the inner space is determined according to the first condensation quality of each subspace.

[0216] In one embodiment, Fig.13 As shown, the first determination module 11 includes:

[0217] A second determining unit 111 is used to determine the saturated water vapor pressure of the internal space according to the temperature of the internal space;

[0218] a third determining unit 112, for determining the water vapor pressure in the air of the internal space according to the saturated water vapor pressure and the relative humidity of the internal space;

[0219] The fourth determining unit 113 is used to determine the absolute humidity according to the temperature and the water vapor pressure in the air.

[0220] In one embodiment, Fig.14 As shown, the condensation quality determination device also includes:

[0221] The third determination module 13 is used to determine a condensation control strategy according to the condensation quality and a preset condensation quality threshold.

[0222] In one embodiment, Fig.15 As shown, the third determination module 13 includes:

[0223] The first output unit 131 is used to output a first prompt message if the condensation quality is greater than or equal to a first condensation quality threshold and less than a second condensation quality threshold; the first prompt message is used to indicate that the quality of the condensation is between the first condensation quality threshold and the second condensation quality threshold;

[0224] The second output unit 132 is used to output a second prompt message if the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery is located before the transfer;

[0225] The dehumidification unit 133 is used to perform a dehumidification operation on the internal space if the condensation quality is greater than or equal to a third condensation quality threshold.

[0226] In one embodiment, the dehumidification unit is further configured to perform a dehumidification operation on the internal space if the condensation mass is greater than or equal to a third preset condensation mass threshold and a preset dehumidification condition is met.

[0227] In one embodiment, the dehumidification unit is also used to control the battery to charge at a preset rate of maximum charging power, or to control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or to control the battery's thermal management system to dehumidify the internal space.

[0228] In one embodiment, the dehumidification unit is further used to control the thermal management system of the battery to heat the internal space to perform a dehumidification operation on the internal space;

[0229] The thermal management system of the battery is controlled to operate in a cooling mode at a preset power to dehumidify the interior space.

[0230] In one embodiment, Fig.16 As shown, the third determination module 13 includes:

[0231] The stopping unit 134 is used to stop the dehumidification operation on the internal space if a preset dehumidification operation stopping condition is met.

[0232] In one embodiment, the preset dehumidification stop condition is met, including any one of the following:

[0233] The space temperature of the internal space is greater than or equal to the preset temperature;

[0234] The relative humidity of the internal space is less than or equal to the preset humidity;

[0235] The battery level is less than or equal to the preset level.

[0236] In one embodiment, the dehumidification unit is also used to discharge condensation in the internal space to the outside of the box through the one-way valve when the thermal management system of the battery operates in a cooling mode at a preset power.

[0237] Each module in the above-mentioned condensation quality determination device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0238] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Fig.17 As shown, Fig.17 : is an application environment diagram of the target detection method provided in an embodiment of the present application. The computer device includes a processor, a memory and a network interface connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store relevant data for determining condensation quality. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for determining condensation quality can be implemented.

[0239] Those skilled in the art will understand that Fig.17 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0240] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0241] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0242] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0243] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0244] Obtain the absolute humidity at at least two moments;

[0245] The quality of condensation generated in the interior space is determined according to the absolute humidity at at least two moments and the space volume of the interior space.

[0246] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0247] The absolute humidity at at least two moments and the spatial volume of the internal space are integrated to obtain the condensation mass generated in the internal space.

[0248] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0249] For each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace;

[0250] The condensation quality generated in the inner space is determined according to the first condensation quality of each subspace.

[0251] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0252] According to the temperature of the internal space, determine the saturated water vapor pressure of the internal space;

[0253] Determine the water vapor pressure in the air of the interior space based on the saturated water vapor pressure and the relative humidity of the interior space;

[0254] Determine the absolute humidity based on the temperature and the water vapor pressure in the air.

[0255] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0256] The condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold.

[0257] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0258] If the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, a first prompt message is output; the first prompt message is used to indicate that the condensation quality is between the first condensation quality threshold and the second condensation quality threshold;

[0259] If the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, a second prompt message is output; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery was before being transferred;

[0260] If the condensation quality is greater than or equal to the third condensation quality threshold, a dehumidification operation is performed on the internal space.

[0261] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0262] If the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification condition is met, a dehumidification operation is performed on the internal space.

[0263] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0264] Control the battery to charge at a preset rate of maximum charging power, or control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or control the thermal management system of the battery to dehumidify the internal space.

[0265] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0266] Controlling the thermal management system of the battery to heat the interior space to dehumidify the interior space;

[0267] The thermal management system controls the battery to operate in a cooling mode at a preset power to dehumidify the interior space.

[0268] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0269] If the preset dehumidification operation stop condition is met, the dehumidification operation of the internal space is stopped.

[0270] In one embodiment, the preset dehumidification stop condition is met, including any one of the following:

[0271] The space temperature of the internal space is greater than or equal to the preset temperature;

[0272] The relative humidity of the internal space is less than or equal to the preset humidity;

[0273] The battery level is less than or equal to the preset level.

[0274] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0275] When the thermal management system of the battery operates in a cooling mode at a preset power, condensation in the internal space is discharged to the outside of the box through the one-way valve.

[0276] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0277] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0278] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0279] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0280] Obtain the absolute humidity at at least two moments;

[0281] The quality of condensation generated in the interior space is determined according to the absolute humidity at at least two moments and the space volume of the interior space.

[0282] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: integrating the absolute humidity at at least two moments and the spatial volume of the internal space to obtain the condensation mass generated in the internal space.

[0283] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0284] For each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace;

[0285] The condensation quality generated in the inner space is determined according to the first condensation quality of each subspace.

[0286] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: determining the saturated water vapor pressure of the interior space according to the temperature of the interior space;

[0287] Determine the water vapor pressure in the air of the interior space based on the saturated water vapor pressure and the relative humidity of the interior space;

[0288] Determine the absolute humidity based on the temperature and the water vapor pressure in the air.

[0289] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0290] The condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold.

[0291] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0292] If the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, a first prompt message is output; the first prompt message is used to indicate that the condensation quality is between the first condensation quality threshold and the second condensation quality threshold;

[0293] If the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, a second prompt message is output; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery was before being transferred;

[0294] If the condensation quality is greater than or equal to the third condensation quality threshold, a dehumidification operation is performed on the internal space.

[0295] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0296] If the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification condition is met, a dehumidification operation is performed on the internal space.

[0297] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0298] Control the battery to charge at a preset rate of maximum charging power, or control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or control the thermal management system of the battery to dehumidify the internal space.

[0299] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0300] Controlling the thermal management system of the battery to heat the interior space to dehumidify the interior space;

[0301] The thermal management system controls the battery to operate in a cooling mode at a preset power to dehumidify the interior space.

[0302] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0303] If the preset dehumidification operation stop condition is met, the dehumidification operation of the internal space is stopped.

[0304] In one embodiment, the preset dehumidification stop condition is met, including any one of the following:

[0305] The space temperature of the internal space is greater than or equal to the preset temperature;

[0306] The relative humidity of the internal space is less than or equal to the preset humidity;

[0307] The battery level is less than or equal to the preset level.

[0308] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0309] When the thermal management system of the battery operates in a cooling mode at a preset power, condensation in the internal space is discharged to the outside of the box through the one-way valve.

[0310] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0311] Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery;

[0312] The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

[0313] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0314] Obtain the absolute humidity at at least two moments;

[0315] The quality of condensation generated in the interior space is determined according to the absolute humidity at at least two moments and the space volume of the interior space.

[0316] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: integrating the absolute humidity at at least two moments and the spatial volume of the internal space to obtain the condensation mass generated in the internal space.

[0317] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0318] For each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace;

[0319] The condensation quality generated in the inner space is determined according to the first condensation quality of each subspace.

[0320] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: determining the saturated water vapor pressure of the interior space according to the temperature of the interior space;

[0321] Determine the water vapor pressure in the air of the interior space based on the saturated water vapor pressure and the relative humidity of the interior space;

[0322] Determine the absolute humidity based on the temperature and the water vapor pressure in the air.

[0323] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0324] The condensation control strategy is determined according to the condensation quality and the preset condensation quality threshold.

[0325] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0326] If the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, a first prompt message is output; the first prompt message is used to indicate that the condensation quality is between the first condensation quality threshold and the second condensation quality threshold;

[0327] If the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, a second prompt message is output; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery was before being transferred;

[0328] If the condensation quality is greater than or equal to the third condensation quality threshold, a dehumidification operation is performed on the internal space.

[0329] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0330] If the condensation mass is greater than or equal to a third preset condensation mass threshold and the preset dehumidification condition is met, a dehumidification operation is performed on the internal space.

[0331] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0332] Control the battery to charge at a preset rate of maximum charging power, or control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or control the thermal management system of the battery to dehumidify the internal space.

[0333] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0334] Controlling the thermal management system of the battery to heat the interior space to dehumidify the interior space;

[0335] The thermal management system of the battery is controlled to operate in a cooling mode at a preset power to dehumidify the interior space.

[0336] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0337] If the preset dehumidification operation stop condition is met, the dehumidification operation of the internal space is stopped.

[0338] In one embodiment, the preset dehumidification stop condition is met, including any one of the following:

[0339] The space temperature of the internal space is greater than or equal to the preset temperature;

[0340] The relative humidity of the internal space is less than or equal to the preset humidity;

[0341] The battery level is less than or equal to the preset level.

[0342] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0343] When the thermal management system of the battery operates in a cooling mode at a preset power, condensation in the internal space is discharged to the outside of the box through the one-way valve.

[0344] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0345] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0346] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0347] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for determining condensation quality, characterized in that: The method comprises: Determine the absolute humidity based on the temperature and relative humidity of the internal space of the battery; The mass of condensation generated in the internal space is determined according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control condensation in the internal space of the battery.

2. The method according to claim 1, characterized in that The determining, according to the absolute humidity and the spatial volume of the internal space, the mass of condensation generated in the internal space comprises: Obtain the absolute humidity at at least two moments; The mass of condensation generated in the internal space is determined according to the absolute humidity at the at least two moments and the spatial volume of the internal space.

3. The method according to claim 2, characterized in that The step of determining the mass of condensation generated in the internal space according to the absolute humidity at the at least two moments and the spatial volume of the internal space comprises: The absolute humidity at the at least two moments and the spatial volume of the internal space are integrated to obtain the mass of condensation generated in the internal space.

4. The method according to claim 2, characterized in that: The internal space includes a plurality of subspaces; and determining the condensation quality generated in the internal space according to the absolute humidity at the at least two moments and the spatial volume of the internal space includes: For each subspace, obtaining a first condensation mass of each subspace according to the absolute humidity at at least two moments and the spatial volume of the subspace; The condensation mass generated in the inner space is determined according to the first condensation mass of each subspace.

5. The method according to claim 1, characterized in that Determining the absolute humidity according to the temperature and relative humidity of the internal space of the battery includes: determining the saturated water vapor pressure of the internal space according to the temperature of the internal space; determining the water vapor pressure in the air of the internal space according to the saturated water vapor pressure and the relative humidity of the internal space; The absolute humidity is determined based on the temperature and the water vapor pressure in the air.

6. The method according to claim 1, characterized in that The method further comprises: A condensation control strategy is determined according to the condensation quality and a preset condensation quality threshold.

7. The method according to claim 6, characterized in that The preset condensation quality threshold includes a first condensation quality threshold, a second condensation quality threshold and a third condensation quality threshold; and determining the condensation control strategy according to the condensation quality and the preset condensation quality threshold includes: If the condensation quality is greater than or equal to the first condensation quality threshold and less than the second condensation quality threshold, output a first prompt information; the first prompt information is used to indicate that the quality of the condensation is between the first condensation quality threshold and the second condensation quality threshold; If the condensation quality is greater than or equal to the second condensation quality threshold and less than the third condensation quality threshold, a second prompt message is output; the second prompt message is used to indicate that the battery is transferred to a target location; the dryness of the target location is greater than the dryness of the location where the battery is located before the transfer; If the condensation mass is greater than or equal to the third condensation mass threshold, a dehumidification operation is performed on the internal space.

8. The method according to claim 7, characterized in that The dehumidifying operation of the internal space includes: If the condensation mass is greater than or equal to the third preset condensation mass threshold and the preset dehumidification condition is met, a dehumidification operation is performed on the internal space.

9. The method according to claim 8 or 7, characterized in that: The dehumidifying operation of the internal space includes: Control the battery to charge at a preset rate of maximum charging power, or control the battery to discharge at a preset rate of maximum discharging power to dehumidify the internal space; or control the thermal management system of the battery to dehumidify the internal space.

10. The method according to claim 9, characterized in that The thermal management system controlling the battery to perform a dehumidification operation on the internal space includes any one of the following: Controlling the thermal management system of the battery to heat the internal space to dehumidify the internal space; The thermal management system of the battery is controlled to operate in a cooling mode at a preset power to dehumidify the internal space.

11. The method according to claim 7, characterized in that The method further comprises: If the preset dehumidification operation stop condition is met, the dehumidification operation on the internal space is stopped.

12. The method according to claim 11, characterized in that The preset dehumidification stop condition is met, including any one of the following: The space temperature of the internal space is greater than or equal to a preset temperature; The relative humidity of the internal space is less than or equal to a preset humidity; The power level of the battery is less than or equal to a preset power level.

13. The method according to claim 10, characterized in that The battery box is provided with a one-way valve, and the method further comprises: When the thermal management system of the battery operates in a cooling mode at a preset power, condensation in the internal space is discharged to the outside of the box through the one-way valve.

14. A management system for electrical devices, characterized in that: The management system of the electrical device includes a control system and a thermal management system; The control system is used to perform the steps of the method described in any one of claims 1 to 13; The thermal management system is used to heat the internal space of the battery or operate in a cooling mode with a preset power when receiving a control signal sent by the control system.

15. A condensation quality determination device, characterized in that: The device comprises: A first determination module, configured to determine the absolute humidity according to the temperature and relative humidity of the internal space of the battery; The second determination module is used to determine the mass of condensation generated in the internal space according to the absolute humidity and the spatial volume of the internal space; the condensation mass is used to control the condensation in the internal space of the battery.

16. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 13 are implemented.

17. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 13 are implemented.

18. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 13 are implemented.

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