CN112087013B - Charging state display method and device, battery pack, electric tool and charging equipment - Google Patents
Charging state display method and device, battery pack, electric tool and charging equipment Download PDFInfo
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- CN112087013B CN112087013B CN201910515667.8A CN201910515667A CN112087013B CN 112087013 B CN112087013 B CN 112087013B CN 201910515667 A CN201910515667 A CN 201910515667A CN 112087013 B CN112087013 B CN 112087013B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application relates to a method and a device for displaying a charging state, a battery pack, an electric tool and charging equipment, belonging to the technical field of electric tools, wherein the method comprises the following steps: controlling the n indicator lights to be turned off before the battery pack is charged; acquiring current charging current and current electric quantity of the battery pack when the battery pack is charged; determining the starting number m of the n indicator lights according to the current electric quantity, wherein the starting number m is in positive correlation with the current electric quantity; determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, wherein the flicker frequency is in positive correlation with the current charging current; starting m indicator lights according to a preset expression form and a flicker frequency; the problem that the charging state information provided by the existing charging state display method is limited can be solved; since the charging speed can be represented by the flashing frequency and the current amount of electricity can be represented by the number of turned-on indicator lamps, more charging states can be displayed when the battery pack is charged.
Description
Technical Field
The application relates to a charging state display method and device, a battery pack, an electric tool and charging equipment, and belongs to the technical field of electric tools.
Background
Battery packs are widely used in various power tools to power the power tools. Common electric tools are electric drills, electric grinders, electric wrenches and electric screwdrivers, electric hammers and impact electric drills, concrete vibrators, electric planers, etc. The battery pack needs to be charged after the power tool is used.
When the existing battery pack is charged, the charging equipment can display fixed states such as normal charging, full charging, charging failure and the like.
However, the above manner provides limited charge state information of the battery pack. If the user needs to use the electric tool to complete a small amount of work after the electric quantity of the battery pack is used up, the battery pack needs to be charged to a small amount of electric quantity in a short time to continue to complete the small amount of work. The traditional charger only displays charging and full charging, and a user cannot visually judge whether the current electric quantity can meet the requirement of residual work, so that the problem of how to provide more charging state information for the user in the charging process is urgent to solve.
Disclosure of Invention
The application provides a charging state display method and device, a battery pack, an electric tool and charging equipment, which can solve the problem that charging state information provided by the existing charging state display method is limited. The application provides the following technical scheme:
in a first aspect, a method for displaying a charging state is provided, and is used in a battery pack, wherein n indicator lights are arranged on a housing of the battery pack; or the electric tool is used for installing a battery pack, and n indicator lights are arranged on the electric tool shell; or the battery pack is used in charging equipment matched with the battery pack, and n indicator lamps are arranged on a shell of the charging equipment; n is an integer greater than 1; the method comprises the following steps:
controlling the n indicator lights to turn off before charging the battery pack;
the method comprises the steps of obtaining current charging current and current electric quantity of a battery pack when the battery pack is charged;
determining the turn-on number m of the n indicator lights according to the current electric quantity, wherein the turn-on number m is in positive correlation with the current electric quantity, and m is a positive integer less than or equal to n;
determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, wherein the flicker frequency is in positive correlation with the current charging current;
and turning on the m indicator lights according to a preset expression form and the flicker frequency.
Optionally, the turning on the m indicator lights according to the preset expression form and the flashing frequency includes:
controlling the ith indicator lamp in the m indicator lamps to be turned on; sequentially taking integers from 1 to m-1 from the i;
after the ith indicator lamp is turned on, controlling the (i + 1) th indicator lamp to be turned on;
when i +1 < m, making i = i +1, and executing the step of controlling the turn-on of the ith indicator lamp in the m indicator lamps again;
when i +1=m, controlling m indicator lamps to be turned off, and enabling i =1 again, and executing the step of controlling the ith indicator lamp in the m indicator lamps to be turned on;
and the time length for turning on the ith indicator lamp is determined according to the flicker frequency of the ith indicator lamp.
Optionally, the turning on the m indicator lights according to the preset expression form and the flashing frequency includes:
controlling the jth indicator lamp of the m indicator lamps to be turned on, and simultaneously controlling other m-1 indicator lamps to be turned off completely; j is an integer from 1 to m-1 in sequence;
when the starting time of the jth indicator lamp reaches the preset time, the jth indicator lamp is turned off, and meanwhile, the jth +1 indicator lamp is turned on; the preset time length is determined based on the flicker frequency of the jth indicator light, and the flicker frequency and the preset time length are in a negative correlation relationship;
when j +1 is less than m, enabling j = j +1 and executing the step of controlling the j-th indicator lamp in the m indicator lamps to be turned on again and controlling other m-1 indicator lamps to be turned off completely at the same time;
and when j +1=m, j =1 is set, and the step of controlling the j-th indicator lamp in the m indicator lamps to be turned on and controlling the other m-1 indicator lamps to be turned off is executed again.
Optionally, the turning-off duration of each of the m indicator lights is greater than or equal to the sum of the preset durations of the other indicator lights.
Optionally, the turning on the m indicator lights according to the preset expression form and the flashing frequency includes:
controlling the first m-1 indicator lamps in the m indicator lamps to be turned on;
and controlling the m-th indicator light to flash according to the flash frequency.
Optionally, the turning on the m indicator lights according to the preset expression form and the flashing frequency includes:
and controlling the m indicator lights to be simultaneously turned on or off according to the flicker frequency.
Optionally, the determining the turn-on number m of the n indicator lights according to the current electric quantity includes:
determining a target electric quantity interval to which the current electric quantity belongs;
determining the starting number m corresponding to the target electric quantity interval from the first corresponding relation; the first corresponding relation at least comprises a corresponding relation between the target electric quantity interval and the m.
Optionally, the determining a flicker frequency of at least one indicator lamp of the m indicator lamps according to the current charging current includes:
determining a target current interval to which the current charging current belongs;
determining the flicker frequency corresponding to the target current interval from the second corresponding relation; the second correspondence relationship at least includes a correspondence relationship between the target current interval and the flicker frequency.
Optionally, the method further comprises:
and controlling the n indicator lamps to be turned off when the current electric quantity of the battery pack reaches the electric quantity maximum value.
Optionally, the n indicator lights are LED lights.
Optionally, the n indicator lights are indicator lights displayed through a display screen.
Optionally, the value of n is 5.
In a second aspect, a charging state display device is provided, which is used in a battery pack, wherein n indicator lights are arranged on a casing of the battery pack; or the electric tool is used for installing a battery pack, and n indicator lamps are arranged on the shell of the electric tool; or the battery pack is used in charging equipment matched with the battery pack, and n indicator lamps are arranged on a shell of the charging equipment; n is an integer greater than 1; the device comprises:
the parameter acquisition module is used for acquiring the current charging current and the current electric quantity of the battery pack when the battery pack is charged;
the quantity determining module is used for determining the starting quantity m of the n indicator lights according to the current electric quantity, the starting quantity m is in positive correlation with the current electric quantity, and the m is a positive integer smaller than or equal to the n;
the frequency determination module is used for determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, and the flicker frequency is in positive correlation with the current charging current;
the control module is used for controlling the n indicator lamps to be turned off before the battery pack is charged; or, the m indicator lights are turned on according to a preset expression form and the flicker frequency in the charging process.
In a third aspect, a battery pack is provided, the battery pack comprising a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the method for displaying a state of charge according to the first aspect.
In a fourth aspect, a power tool is provided that includes a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the method for displaying a state of charge according to the first aspect.
In a fifth aspect, a charging device is provided, the charging device comprising a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the method for displaying a state of charge according to the first aspect.
A sixth aspect provides a computer-readable storage medium having a program stored therein, the program being loaded and executed by the processor to implement the method for displaying a state of charge of the first aspect.
The beneficial effect of this application lies in: n indicator lights are arranged on a battery pack, an electric tool and charging equipment, and the n indicator lights are controlled to be turned off before the battery pack is charged; acquiring current charging current and current electric quantity of the battery pack when the battery pack is charged; determining the starting number m of the n indicator lights according to the current electric quantity, wherein the starting number m is in positive correlation with the current electric quantity; determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, wherein the flicker frequency is in positive correlation with the current charging current; turning on m indicator lights according to a preset expression form and a flicker frequency; the problem that the charging state information provided by the existing charging state display method is limited can be solved; because the charging speed can be represented by the flashing frequency and the current electric quantity can be represented by the number of the turned-on indicator lamps, more charging states can be displayed when the battery pack is charged, and more charging state information can be provided.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
Drawings
Fig. 1 is a flowchart of a method for displaying a charging status according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a charging state provided by an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a charging state provided by another embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a charging state provided by another embodiment of the present application;
FIG. 5 is a schematic diagram illustrating a charging state provided by another embodiment of the present application;
fig. 6 is a block diagram of a charging status display device according to an embodiment of the present application;
fig. 7 is a block diagram of a charging status display device according to an embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Optionally, the main body of each step in the embodiments is a battery pack; or, a power tool with a battery pack mounted thereon; alternatively, a charging device associated with the battery pack will be described as an example.
When the execution main body is a battery pack, n indicator lamps are arranged on the battery pack shell, and the n indicator lamps can be LED lamps; alternatively, the display may be a virtual indicator light displayed on the display screen. Optionally, when the n indicator lights are displayed through the display screen, the display screen may be detachably mounted on the charging device housing; or the display screen is fixedly arranged on the shell of the charging equipment. The battery pack is also internally provided with a control assembly, and the control assembly is connected with the n indicator lamps in a signal mode so as to control the n indicator lamps to be turned on and off. The battery pack is used for supplying power to the electric tool.
When the execution main body is an electric tool, n indicator lamps are arranged on the electric tool shell, and the n indicator lamps can be LED lamps; alternatively, the display may be a virtual indicator light displayed on the display screen. Optionally, the display screen may be detachably mounted on the power tool housing when the n indicator lights are displayed by the display screen; alternatively, the display screen is fixedly mounted on the power tool housing. The electric tool is also provided with a control assembly, and the control assembly is in signal connection with the n indicator lamps so as to control the n indicator lamps to be turned on and off.
When the execution main body is a charging device, n indicator lamps are arranged on the shell of the charging device, and the n indicator lamps can be LED lamps; alternatively, the display may be a virtual indicator light displayed on the display screen. Optionally, when the n indicator lights are displayed through the display screen, the display screen may be detachably mounted on the charging device housing; or the display screen is fixedly arranged on the shell of the charging equipment. The charging equipment is also provided with a control assembly, and the control assembly is connected with the n indicator lamps through signals to control the on and off of the n indicator lamps. The charging device is used for charging the battery pack, and may also be referred to as a charger, a charging assembly, and the like, and the name of the charging device is not limited in this embodiment.
In the present application, n is an integer greater than 1. At this time, the battery pack, the power tool, or the charging apparatus may display the charging state of the battery pack through a plurality of indicator lights, such as: the charging speed, the current electric quantity and the like of the battery pack are displayed, and more charging state information can be provided for a user.
Fig. 1 is a flowchart of a method for displaying a charging status according to an embodiment of the present application, where the method is applied to a battery pack, an electric tool, or a charging device, and an execution subject of each step is described as an example of a control component. The method at least comprises the following steps:
and step 101, controlling the n indicator lamps to be turned off before the battery pack is charged.
Wherein, before charging the battery pack, the battery pack is in a charging waiting state. The charge waiting state refers to a state in which the charger has docked with the battery pack, but no current is supplied to the battery pack.
And 102, acquiring the current charging current and the current electric quantity of the battery pack when the battery pack is charged.
Optionally, the manner of obtaining the current charging current includes, but is not limited to, the following:
in one approach, the current charging current is obtained by a Power Management Unit (PMU) or a Power quantity calculation chip.
In another mode, voltage signals at two ends of a series resistor connected between a charging interface of the charging device and a power supply are received; and amplifying the difference value of the voltage signals at the two ends of the series resistor to obtain the voltage value of the series resistor, determining the current value of the series resistor according to the voltage value and the resistance value of the series resistor, and taking the current value as the current charging current value of the charging equipment.
Optionally, the current charge of the battery pack is obtained by the following methods:
in one mode: and integrating the current charging current in real time to obtain the current electric quantity.
In another mode: and (4) integrating the current charging current in real time and multiplying the current charging current by a charging coefficient to obtain the current electric quantity. Wherein the charge coefficient is a value greater than 0 and less than 1.
And 103, determining the turn-on number m of the n indicator lamps according to the current electric quantity.
The starting number m is in positive correlation with the current electric quantity, and m is a positive integer less than or equal to n.
Optionally, determining the turn-on number m of the n indicator lights according to the current electric quantity includes: determining a target electric quantity interval to which the current electric quantity belongs; and determining the opening number m corresponding to the target electric quantity interval from the first corresponding relation. The first corresponding relation at least comprises a corresponding relation between the target electric quantity interval and the m.
Referring to the first corresponding relationship shown in table one, assuming that the current electric quantity is 10% of the maximum electric quantity, the target electric quantity interval is [0, 20%), and the corresponding value of m is 1. In this embodiment, n =5 and the number of the power intervals is also n, and in actual implementation, more detailed division may be performed, for example: n =10, the power range is divided into 10, and the value of n is not limited in this embodiment.
Table one:
| interval of electric quantity | m |
| [0，20％) | 1 |
| [20％，40％) | 2 |
| [40％，60％) | 3 |
| [60％，80％) | 4 |
| [80％，100％) | 5 |
And 104, determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current.
Wherein, the flicker frequency and the current charging current are in positive correlation.
Optionally, determining a flashing frequency of at least one of the m indicator lights according to the present charging current includes: determining a target current interval to which the current charging current belongs; and determining the flicker frequency corresponding to the target current interval from the second corresponding relation. Wherein the second corresponding relation at least comprises the corresponding relation between the target current interval and the flicker frequency.
The plurality of current intervals in the second correspondence relationship are obtained by dividing a range from a minimum charging current to a maximum charging current of the battery pack.
Referring to the second corresponding relationship shown in table two, assuming that the current charging current is 2.5 amperes, the target current interval to which the current charging current belongs is [2,3 ], and the corresponding flicker frequency is 0.5 seconds each time. In this embodiment, 4 current intervals are taken as an example for explanation, and in actual implementation, more detailed division may be performed, and the division manner of the current intervals is not limited in this embodiment.
Table two:
| current interval (Ampere) | Frequency of flicker |
| [2，3) | 0.5 second each time |
| [1,2) | 0.4 second each time |
| [0.5,1) | 0.3 second each time |
| [0.3,0.5) | 0.2 second each time |
Alternatively, the smaller the present amount of power, the larger the present charging current.
And 105, turning on m indicator lights according to a preset expression form and a flicker frequency.
Optionally, the manner of turning on the m indicator lights according to the preset expression and the flashing frequency includes, but is not limited to, the following:
the first method comprises the following steps: and starting m indicator lights in a water lamp mode according to the determined flicker frequency.
In one example, the ith indicator lamp in the m indicator lamps is controlled to be turned on; i sequentially taking integers from 1 to m-1; after the ith indicator lamp is turned on, controlling the (i + 1) th indicator lamp to be turned on; when i +1 is less than m, enabling i = i +1, and executing the step of controlling the ith indicator lamp in the m indicator lamps to be turned on again; and when the i +1=m is detected, controlling the m indicator lamps to be turned off, enabling i =1 again, and executing the step of controlling the ith indicator lamp in the m indicator lamps to be turned on.
And the time length for turning on the ith indicator lamp is determined according to the flashing frequency of the ith indicator lamp.
Optionally, during one flashing of the indicator light, the on time of the ith indicator light = the flashing frequency × k, k is a value greater than 0 and less than 1. In this example, the time lengths of the m indicator lights which are turned on in one flashing process are reduced one by one, that is, the values of k are reduced one by one, and the flashing frequencies of the m indicator lights are the same.
Referring to the representation shown in fig. 2, n =5,m =3 is taken as an example. Assuming that the flashing frequencies of the m indicator lights are all 0.5 second each time, and the k value of the first indicator light is 0.9 in the process of flashing once, the time length of the first indicator light is 0.5 x 0.9=0.45; if the k value of the second indicator light is 0.8, the time length for turning on the second indicator light is 0.5 x 0.8=0.4; the k value of the third indicator light is 0.7, and the time period for which the third indicator light is turned on is 0.5 × 0.7=0.35. At the moment, the control component controls the n indicator lamps to be turned off before charging; then, controlling a first indicator lamp to be turned on in the charging process; then, keeping the starting state of the first indicator light, and controlling the second indicator light to be started; then, keeping the starting state of the first indicator light and the second indicator light, and controlling the third indicator light to be started; the method comprises the steps of ensuring that the starting time of a first indicator light reaches 0.45 second, the starting time of a second indicator light reaches 0.4 second and the starting time of a third indicator light reaches 0.35 second, then, after 3 indicator lights are turned off for 0.05 second, executing the step of controlling the first indicator light to be turned on again so as to ensure that the flicker frequency of the first indicator light, the second indicator light and the third indicator light is 0.5 second each time.
In another example, the jth indicator lamp in the m indicator lamps is controlled to be turned on, and all other m-1 indicator lamps are controlled to be turned off; j is an integer of 1 to m-1 in sequence; when the starting time of the jth indicator lamp reaches the preset time, the jth indicator lamp is turned off, and meanwhile, the (j + 1) th indicator lamp is turned on; when j +1 is less than m, enabling j = j +1 and controlling the j-th indicator lamp of the m indicator lamps to be turned on again and controlling other m-1 indicator lamps to be turned off completely; and when j +1=m, making j =1 and controlling the j-th indicator lamp of the m indicator lamps to be turned on again, and controlling the other m-1 indicator lamps to be turned off completely.
The preset time length is determined based on the flicker frequency of the jth indicator light, and the flicker frequency and the preset time length are in a negative correlation relationship. Optionally, the indicator light is in one flashing process, the preset time length = the flashing frequency × k, and k is a value greater than 0 and less than 1.
Optionally, the flashing frequencies of the m indicator lights are the same. Of course, the flashing frequencies of the m indicator lights may also be different.
Optionally, in order to ensure that when the jth indicator light is turned on, the other indicator lights are turned off, the turning-off time duration of each indicator light in the m indicator lights is greater than or equal to the sum of the preset time durations of the other indicator lights.
Referring to the expression shown in fig. 3, n =5,m =3 is taken as an example. Assuming that the flashing frequency of the m indicator lights is 0.5 second each time, in order to ensure that the turn-off time of each indicator light is greater than or equal to the sum of the preset time of other indicator lights in one flashing process, the k value of each indicator light may be set to 0.2 (of course, other values meeting the above condition may also be adopted), and then the preset time of each indicator light is 0.1 second. At the moment, the control component controls the n indicator lamps to be turned off before charging; then, the control component controls the first indicator light to be turned on in the charging process; after 0.1 second, turning off the first indicator light and controlling the second indicator light to be turned on; after 0.1 second, turning off the second indicator light and controlling the third indicator light to be turned on; and after 0.2 second, the step of controlling the first indicator light to be turned on is executed again so as to ensure that the flickering frequency of the first indicator light, the second indicator light and the third indicator light is 0.5 second each time.
And the second method comprises the following steps: and controlling the m-th indicator light to flicker according to the determined flicker frequency.
Schematically, controlling the first m-1 indicator lamps in the m indicator lamps to be turned on; and controlling the mth indicator lamp to flicker according to the flicker frequency.
Referring to the expression shown in fig. 4, n =5,m =3 is taken as an example. Assuming that the flashing frequency is 0.5 second per time, the control component controls the first 2 indicator lamps to be turned on, and controls the 3 rd indicator lamp to flash according to 0.5 second per time.
And the third is that: and controlling the m indicator lamps to synchronously flash according to the determined flash frequency.
Illustratively, m indicator lights are controlled to be turned on or off simultaneously according to the flashing frequency.
Referring to the expression shown in fig. 5, n =5,m =3 is taken as an example. Assuming that the blinking frequency is 0.5 seconds per time, the control component controls the 3 rd indicator light to blink synchronously at 0.5 seconds per time.
Optionally, the n indicator lights are controlled to be turned off when the current electric quantity of the battery pack reaches the electric quantity maximum value.
In summary, in the method for displaying the charging status provided in this embodiment, n indicator lights are arranged on the battery pack, the electric tool, or the charging device, and the n indicator lights are controlled to be turned off before the battery pack is charged; the method comprises the steps of obtaining current charging current and current electric quantity of a battery pack when the battery pack is charged; determining the starting number m of the n indicator lights according to the current electric quantity, wherein the starting number m is in positive correlation with the current electric quantity; determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, wherein the flicker frequency is in positive correlation with the current charging current; turning on m indicator lights according to a preset expression form and a flicker frequency; the problem that the charging state information provided by the existing charging state display method is limited can be solved; because the charging speed can be represented by the flashing frequency and the current electric quantity can be represented by the number of the turned-on indicator lamps, more charging states can be displayed when the battery pack is charged, and more charging state information can be provided.
In addition, the charging speed and the current electric quantity are displayed through the plurality of indicating lamps, the charging state can be more visually represented, and the representation effect of the charging state is improved.
Fig. 6 is a block diagram of a charging status display device according to an embodiment of the present application, which is described in the application of the device to a battery pack, an electric tool with the battery pack mounted thereon, or a charging device associated with the battery pack, wherein n indicator lights are arranged on a housing of the battery pack; n indicator lamps are arranged on the electric tool shell; n indicator lights are arranged on the charging equipment shell, and n is an integer larger than 1. The device at least comprises the following modules: a parameter acquisition module 610, a quantity determination module 620, a frequency determination module 630, and a control module 640.
A parameter obtaining module 610, configured to obtain a current charging current and a current electric quantity of the battery pack when the battery pack is charged;
a quantity determining module 620, configured to determine, according to the current electric quantity, a turning-on quantity m of the n indicator lights, where the turning-on quantity m is in a positive correlation with the current electric quantity, and m is a positive integer smaller than or equal to n;
a frequency determining module 630, configured to determine a flashing frequency of at least one indicator light of the m indicator lights according to the current charging current, where the flashing frequency is in a positive correlation with the current charging current;
a control module 640, configured to control the n indicator lights to turn off before the battery pack is charged; or, the m indicator lights are turned on according to a preset expression form and the flicker frequency in the charging process.
For relevant details reference is made to the above-described method embodiments.
It should be noted that: in the above embodiment, when the display device of the charging status displays the charging status, only the division of the functional modules is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the display device of the charging status is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the display device of the charging state and the display method embodiment of the charging state provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Fig. 7 is a block diagram of a charging status display device according to an embodiment of the present application, where the charging status display device may be a battery pack, a power tool, or a charging device. The apparatus includes at least a processor 701 and a memory 702.
Processor 701 may include one or more processing cores, such as: 4 core processors, 6 core processors, etc. The processor 701 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 701 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state.
Memory 702 may include one or more computer-readable storage media, which may be non-transitory. Memory 702 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 702 is used to store at least one instruction for execution by processor 701 to implement a method of displaying a charge status as provided by method embodiments herein.
In some embodiments, the charging status display device may further include: a peripheral device interface and at least one peripheral device. The processor 701, memory 702, and peripheral interface may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface by a bus, signal line, or circuit board. Illustratively, peripheral devices include, but are not limited to, power supplies and the like.
Of course, the charging status display device may also include fewer or more components, which is not limited in this embodiment.
Optionally, the present application further provides a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the method for displaying the charging state of the above method embodiment.
Optionally, the present application further provides a computer product, which includes a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the method for displaying the charging state of the above method embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. The method for displaying the charging state is characterized in that the method is used in a battery pack, and n indicator lamps are arranged on a shell of the battery pack; or the electric tool is used for installing a battery pack, and n indicator lamps are arranged on the shell of the electric tool; or the battery pack is used in charging equipment matched with the battery pack, and n indicator lamps are arranged on a shell of the charging equipment; n is an integer greater than 1; the method comprises the following steps:
controlling the n indicator lights to turn off before charging the battery pack;
acquiring current charging current and current electric quantity of the battery pack when the battery pack is charged;
determining the turn-on number m of the n indicator lights according to the current electric quantity, wherein the turn-on number m is in positive correlation with the current electric quantity, and m is a positive integer less than or equal to n;
determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, wherein the flicker frequency is in positive correlation with the current charging current;
turning on the m indicator lights according to a preset expression form and the flicker frequency, and turning on the m indicator lights according to the preset expression form and the flicker frequency comprises: starting m indicator lights in a water lamp mode according to the determined flicker frequency;
the turning on of the m indicator lights according to the preset expression form and the flicker frequency comprises:
controlling the ith indicator lamp in the m indicator lamps to be turned on; sequentially taking integers from 1 to m-1 from the i;
after the ith indicator lamp is turned on, controlling the (i + 1) th indicator lamp to be turned on;
when i +1 < m, making i = i +1, and executing the step of controlling the turn-on of the ith indicator lamp in the m indicator lamps again;
when i +1=m, controlling m indicator lamps to be turned off, and enabling i =1 again, and executing the step of controlling the ith indicator lamp in the m indicator lamps to be turned on;
the time length of the ith indicator lamp is determined according to the flashing frequency of the ith indicator lamp; the time length of the ith indicator lamp is = the flicker frequency x k i ，k i Is a value greater than 0 and less than 1, and m indicator lights are onThe starting time length in the process of one-time flashing is reduced one by one, k i The values of (a) and (b) are decreased one by one, so that the flashing frequencies of the m indicator lights are the same; the time length of the turn-on of the mth indicator lamp is not less than the time length of the complete turn-off of the mth indicator lamp.
2. The method of claim 1, wherein said determining the number m of on n indicator lights based on the current amount of power comprises:
determining a target electric quantity interval to which the current electric quantity belongs;
determining the starting number m corresponding to the target electric quantity interval from the first corresponding relation; the first corresponding relation at least comprises a corresponding relation between the target electric quantity interval and the m.
3. The method of claim 1, wherein determining a blinking frequency of at least one of the m indicator lights as a function of the present charging current comprises:
determining a target current interval to which the current charging current belongs;
determining the flicker frequency corresponding to the target current interval from the second corresponding relation; the second correspondence relationship at least includes a correspondence relationship between the target current interval and the flicker frequency.
4. The method of claim 1, further comprising:
and controlling the n indicator lamps to be turned off when the current electric quantity of the battery pack reaches the electric quantity maximum value.
5. The method of claim 1, wherein the n indicator lights are LED lights.
6. The method of claim 1, wherein the n indicator lights are indicator lights displayed via a display screen.
7. The method of claim 1, wherein n has a value of 5.
8. The charging state display device is characterized by being used in a battery pack, wherein n indicator lamps are arranged on a shell of the battery pack; or the electric tool is used for installing a battery pack, and n indicator lamps are arranged on the shell of the electric tool; or the battery pack is used in charging equipment matched with the battery pack, and n indicator lamps are arranged on a shell of the charging equipment; n is an integer greater than 1; the device comprises:
the parameter acquisition module is used for acquiring the current charging current and the current electric quantity of the battery pack when the battery pack is charged;
the quantity determining module is used for determining the starting quantity m of the n indicator lights according to the current electric quantity, the starting quantity m is in positive correlation with the current electric quantity, and the m is a positive integer smaller than or equal to the n;
the frequency determination module is used for determining the flicker frequency of at least one indicator lamp in the m indicator lamps according to the current charging current, and the flicker frequency is in positive correlation with the current charging current;
the control module is used for controlling the n indicator lamps to be turned off before the battery pack is charged; or, the m indicator lights are turned on according to a preset expression form and the flicker frequency in the charging process; the m indicator lights are turned on according to the preset expression form and the flicker frequency, and the method comprises the following steps: starting m indicator lights in a water lamp mode according to the determined flicker frequency;
the turning on of the m indicator lights according to the preset expression form and the flicker frequency comprises:
controlling the ith indicator lamp in the m indicator lamps to be turned on; sequentially taking integers from 1 to m-1 from the i;
after the ith indicator lamp is turned on, controlling the (i + 1) th indicator lamp to be turned on;
when i +1 < m, making i = i +1, and executing the step of controlling the turn-on of the ith indicator lamp in the m indicator lamps again;
when i +1=m, controlling m indicator lamps to be turned off, and enabling i =1 again, and executing the step of controlling the ith indicator lamp in the m indicator lamps to be turned on;
the time length of the ith indicator lamp is determined according to the flashing frequency of the ith indicator lamp; the on time of the ith indicator light = the flicker frequency x k i ，k i For a value greater than 0 and less than 1, the time length of the m indicator lights which are turned on in the process of one flashing is reduced one by one, and k i The values of (a) and (b) are reduced one by one, so that the flicker frequencies of the m indicator lights are the same; the time length of the turn-on of the mth indicator lamp is not less than the time length of the complete turn-off of the mth indicator lamp.
9. A battery pack, comprising a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the display method of the state of charge according to any one of claims 1 to 7.
10. A power tool, comprising a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the display method of the state of charge according to any one of claims 1 to 7.
11. A charging device, comprising a processor and a memory; the memory stores therein a program that is loaded and executed by the processor to implement the display method of the state of charge according to any one of claims 1 to 7.
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