Battery pack and electric equipment

Abstract

The embodiment of the utility model relates to the field of battery packs, and provides a battery pack and electric equipment. The battery pack comprises a shell and a battery module arranged in the shell, and the battery module is used for supplying power to electric equipment; the voltage detection module is connected with the battery module and is used for detecting the current electric quantity of the battery module so as to generate and output a voltage signal representing the current electric quantity; the controller is connected with the voltage detection module and is used for receiving the voltage signal and outputting a control signal corresponding to the voltage signal; the display module is arranged on the shell and connected with the controller, the display module comprises a plurality of display parts used for forming product identifiers, and the display module responds to the control signals to determine the display states of the display parts. The embodiment of the utility model at least improves the practicability of the battery pack, enhances the product effect and improves the product propagation degree.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of battery packs, and in particular to a battery pack and an electrical device. Background Art

[0002] Battery packs are widely used in various electrical devices to power lithium-ion power tools. Common electrical devices include handheld tools and garden tools. Currently, electrical devices and battery packs primarily display power levels through indicator lights (LEDs) of varying numbers or colors. After use, the battery packs require charging. Existing battery packs typically display fixed status indicators such as "normal charging," "full," and "charging failure" during charging.

[0003] However, current battery packs have low practicality. Utility Model Content

[0004] The embodiments of the present disclosure provide a battery pack and an electrical device, which can at least improve the practicality of the battery pack, enhance the product effect, and increase the product's popularity.

[0005] According to some embodiments of the present disclosure, the embodiments of the present disclosure provide a battery pack, comprising: a shell and a battery module disposed in the shell, the battery module being used to power an electrical device; a voltage detection module, the voltage detection module being connected to the battery module, and being used to detect a current charge level of the battery module, so as to generate and output a voltage signal representing the current charge level; a controller, the controller being connected to the voltage detection module, and being used to receive the voltage signal and output a control signal corresponding to the voltage signal; a display module, the display module being disposed on the shell and connected to the controller, the display module comprising a plurality of display parts for constituting a product identification, the display module determining a display state of the display part in response to the control signal.

[0006] In some embodiments, the controller includes: a voltage comparison module, which is connected to the voltage detection module, for receiving the voltage signal, and judging the size relationship between the current power represented by the voltage signal and different power ranges, obtaining the actual power range, the actual power range is the power range to which the current power belongs, and generating a comparison signal corresponding to the actual power range; a signal generation module, which is connected to the voltage comparison module and the display module, for receiving the comparison signal, generating and outputting the control signal.

[0007] In some embodiments, the signal generating module is connected to each of the display units, the power range corresponds to the display unit one-to-one, and the power range includes a lower limit value and an upper limit value; the display unit is configured so that if the current power is within the power range, the display state of the display unit corresponding to the power range is flashing, if the current power is less than or equal to the lower limit value, the display state of the display unit corresponding to the power range is one of always on or off, and if the current power is greater than or equal to the upper limit value, the display state of the display unit corresponding to the power range is the other of always on or off.

[0008] In some embodiments, the battery pack further includes: a current detection module, which is connected to the battery module and is used to detect the discharge current of the battery module; wherein the controller is connected to the current detection module and is used to receive the discharge current to obtain whether the battery module is in a working state or a standby state, and outputs the control signal while the battery module is in the working state or the standby state.

[0009] In some embodiments, the battery pack further includes: an alarm, which is connected to the controller, wherein, while the battery module is in the working state, if the current power level represented by the voltage signal received by the controller is lower than a preset threshold, the controller controls the alarm to issue an alarm signal.

[0010] In some embodiments, the alarm includes a buzzer.

[0011] In some embodiments, while the battery module is in standby mode, if the current power level represented by the voltage signal received by the controller is greater than or equal to a preset threshold, the display state of part of the display unit is flashing; if the current power level represented by the voltage signal received by the controller is less than the preset threshold, the display state of the display unit is off.

[0012] In some embodiments, the current detection module is further used to detect the charging current of the power-consuming module to obtain whether the battery module is in a charging state, and output the control signal while the battery module is in the charging state.

[0013] In some embodiments, the display module includes: a light-emitting component, the light-emitting component includes a plurality of light-emitting units, the light-emitting component determines the display status of the light-emitting unit in response to the control signal; a signboard, the signboard includes a translucent identification portion and an opaque main body portion, the identification portion is used to constitute the product identification, and the signboard is located on a side of the light-emitting module away from the housing.

[0014] According to some embodiments of the present disclosure, another aspect of the present disclosure further provides an electrical device, comprising the battery pack described in any of the above embodiments.

[0015] The technical solution provided by the embodiments of the present disclosure has at least the following advantages:

[0016] The technical solution of a battery pack provided by an embodiment of the present disclosure includes: a housing and a battery module disposed within the housing, the battery module being configured to power an electrical device; the battery pack further comprising a voltage detection module and a controller, the voltage detection module being connected to the battery module and configured to detect the current charge level of the battery module to generate and output a voltage signal representing the current charge level; the controller being connected to the voltage detection module and configured to receive the voltage signal and output a control signal corresponding to the voltage signal; and the battery pack further comprising a display module disposed on the housing and connected to the controller, the display module comprising multiple display portions for forming a product identification, the display module determining a display state of the display portion in response to a control signal. The display module comprises multiple display portions for forming a product identification, and the display module can adjust the display state of the display portion according to the charge level of the battery module, thereby enabling the battery pack to actively display the current charge level range of the battery module, allowing a user to intuitively determine the current charge level range of the battery module by viewing the display state of the display portion during use and charging, thereby improving the practicality of the battery pack. Furthermore, the display module comprising multiple display portions for forming a product identification can enhance the product's effectiveness and increase the product's popularity, thereby also improving the practicality of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise stated, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the traditional technology, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a battery pack provided in an embodiment of the present disclosure;

[0019] Figure 2 A schematic diagram of the connection between modules and electrical equipment in a battery pack provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] In related technologies, the power display of electrical equipment and battery packs requires pressing the battery pack button or the tool's power button to observe the current power level. It is displayed by a single indicator light and cannot actively prompt the remaining power range before and during use. The practicality of the battery pack needs to be improved. Moreover, when charging, only the fixed status display of the charging device cannot intuitively show the current charging level of the battery pack. The practicality of the battery pack needs to be improved.

[0021] In summary, the practicality of battery packs in related technologies needs to be improved.

[0022] An embodiment of the present disclosure provides a battery pack, wherein the battery includes a shell and a battery module placed in the shell, and the battery module is used to supply power to electrical equipment; the battery pack also includes a voltage detection module and a controller, the voltage detection module is connected to the battery module and is used to detect the current power of the battery module, and the controller is connected to the voltage detection module and is used to output a control signal, the battery pack also includes a display module, the display module includes a plurality of display parts that constitute a product identification, and the display module can adjust the display status of the display part according to the power of the battery module, so that the battery pack can actively display the current power range of the battery module, so that the user can intuitively judge the current power range of the battery module through the display status of the display part during use and charging, thereby improving the practicality of the battery pack. In addition, the display module includes a plurality of display parts that constitute a product identification, which can enhance the product effect and improve the popularity of the product.

[0023] The following describes various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in the various embodiments of the present disclosure to facilitate a better understanding of the present disclosure. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can still be implemented.

[0024] Figure 1 A schematic diagram of the structure of a battery pack provided in an embodiment of the present disclosure is shown. Figure 2 This is a schematic diagram of the connection between each module and the electrical equipment in a battery pack provided by an embodiment of the present disclosure. It should be noted that, Figure 2 For the sake of simplicity and clarity, the connection lines between the battery module and the voltage detection module and the battery module and the current detection module are not illustrated. In actual use, the battery module is connected to the voltage detection module and the battery module is also connected to the current detection module.

[0025] Also refer to Figure 1 and Figure 2The battery pack includes: a shell 100 and a battery module 101 placed in the shell 100. The battery module 101 is used to power electrical equipment. The battery pack also includes a voltage detection module 102 and a controller 103. The voltage detection module 102 is connected to the battery module 101 and is used to detect the current power level of the battery module 101 to generate and output a voltage signal representing the current power level. The controller 103 is connected to the voltage detection module 102 and is used to receive the voltage signal and output a control signal corresponding to the voltage signal. The battery pack also includes a display module 104. The display module 104 is arranged on the shell 100 and is connected to the controller. The display module 104 includes multiple display parts for constituting a product identification. The display module 104 determines the display state of the display part in response to the control signal.

[0026] The housing 100 protects the battery module 101 and defines a cavity therein for accommodating the battery module 101. The housing 100 can have a square, circular, or other shape that matches the battery compartment of an electrical device. Depending on actual needs, the housing assembly 100 can be configured as a closed or semi-closed structure and can be assembled from multiple parts.

[0027] The battery module 101 is used to supply power to electrical devices.

[0028] The current power of the battery pack generally referred to can be understood as the current power of the battery module 101 .

[0029] The voltage detection module 102 generates and outputs a voltage signal representing the current power level by detecting the current voltage of the battery module 101 .

[0030] The controller 103 is configured to receive a voltage signal and output a control signal corresponding to the voltage signal to adjust a display state of the display unit.

[0031] In some embodiments, the controller 103 includes a voltage comparison module 113 and a signal generation module 123. The voltage comparison module 113 is connected to the voltage detection module 102 and is used to receive a voltage signal and determine the size relationship between the current power represented by the voltage signal and different power ranges, obtain the actual power range, and generate a comparison signal corresponding to the actual power range. The signal generation module 123 is connected to the voltage comparison module 102 and the display module 104 and is used to receive the comparison signal and generate and output a control signal. Among them, the voltage detection module 102 generates and outputs a voltage signal representing the current power by detecting the current voltage of the battery module 101. The controller 103 receives the voltage signal through the voltage comparison module 113, can obtain the range of the current power of the battery module 101, and output a corresponding comparison signal. Then, the signal generation module 123 receives the comparison signal and outputs a corresponding control signal to adjust the display state of the display unit, so that the user can intuitively determine the current power range of the battery module 101 based on the display state of the display unit, thereby improving the practicality of the battery pack.

[0032] Table 1 illustrates the corresponding relationship between the voltage of a battery module and the current power of the battery module according to an embodiment of the present disclosure.

[0033] refer to Figure 2 As shown in Table 1, in one embodiment, the battery module 101 has four power ranges, namely 0%-25%, 25%-50%, 50%-75%, and 75%-100%. The voltage detection module 102 detects the current voltage of the battery module 101 and outputs a voltage signal to the controller 103. The voltage comparison module 113 of the controller receives the voltage signal, obtains the actual power range, and then outputs a corresponding control signal through the signal generation module.

[0034] Table 1

[0035] Voltage Current power Greater than or equal to 19.6V±0.5V Equal to 100% Greater than 18.9±0.5V and less than 19.6V±0.5V More than 75% and less than 100% Equal to 18.9±0.5V Equal to 75% Greater than 17.7±0.5V and less than 18.9V±0.5V More than 50% and less than 75% Equal to 17.7±0.5V Equal to 50% Greater than 16.0V±0.5V and less than 17.7V±0.5V More than 25% and less than 50% Equal to 16.0V±0.5V Equal to 25% Greater than 0V and less than 16.0V±0.5V Greater than 0% and less than 25% Equal to 0V Equal to 0%

[0036] It will be understood that the data in the above table are for example only. During actual use of the battery pack, the power range of the battery module may be other values, and the voltage corresponding to each power range may also be adjusted and set accordingly based on the actual situation of the battery pack. The embodiments of the present disclosure are not limited to this.

[0037] In some embodiments, the signal generating module 123 is connected to each display unit, the power range corresponds to the display unit one-to-one, and the power range includes a lower limit value and an upper limit value; the display unit is configured so that if the current power is within the power range, the display state of the display unit corresponding to the power range is flashing, if the current power is less than or equal to the lower limit value, the display state of the display unit corresponding to the power range is one of always on or off, and if the current power is greater than or equal to the upper limit value, the display state of the display unit corresponding to the power range is the other of always on or off. The power range corresponds to the display unit one-to-one, and the power range includes a lower limit value and an upper limit value, so that the user can intuitively determine the current power range of the battery module 101 through the always on, off, or flashing states of multiple display units in the display module 104, which is conducive to improving the practicality of the battery pack.

[0038] In some embodiments, the display module 104 includes a first display portion 114, a second display portion 124, a third display portion 134, and a fourth display portion 144. The battery module 101 has four power ranges, namely 0%-25%, 25%-50%, 50%-75%, and 75%-100%.

[0039] Table 2 shows the corresponding relationship between the power level of a battery module and the display status of the display unit according to an embodiment of the present disclosure.

[0040] refer to Figure 1 、 Figure 2As shown in Table 2, when the power level of the battery module 100 is 100%, the first display unit 114, the second display unit 124, the third display unit 134 and the fourth display unit 144 are all constantly on; when the power level of the battery module 100 is 75%<the power level of the battery module 100<100%, the first display unit 114, the second display unit 124, the third display unit 134 are all constantly on, and the fourth display unit 144 flashes; when the power level of the battery module 100 is 75%, the first display unit 114, the second display unit 124, the third display unit 134 are all constantly on, and the fourth display unit 144 is off; when the power level of the battery module 100 is 50%<the power level of the battery module 100<75%, the first display unit 114, the second display unit 124, the third display unit 134 are all constantly on, the third display unit 134 flashes, and the fourth display unit 144 is off; , the first display unit 114 is always on, the second display unit 124 is always on, and the third display unit 134 and the fourth display unit 144 are always off; when the power level of the battery module 100 is 25% < 50%, the first display unit 114 is always on, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are always off; when the remaining power of the battery pack is < 25% (assumed range), the first display unit 114 flashes, the second display unit 124, the third display unit 134, and the fourth display unit 144 are always off; when the power level of the battery module 100 is 0%, the first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are always off. With this arrangement, the more sufficient the power of the battery module 101 is, the more display parts will be constantly lit, so that the user can intuitively determine the current power range of the battery module 101, which is beneficial to improving the practicality of the battery pack.

[0041] Table 2

[0042] Power range Display status of each display unit Equal to 100% 114, 124, 134, and 144 are all steady on. More than 75% and less than 100% 114, 124, and 134 are all steady on, and 144 is flashing. Equal to 75% 114, 124, and 134 are all on, and 144 is off. More than 50% and less than 75% 114 and 124 are always on, 134 is flashing, and 144 is off Equal to 50% 114 and 124 are always on, 134 and 144 are off More than 25% and less than 50% 114 is always on, 124 is flashing, 134 and 144 are off Equal to 25% 114 is always on, 124, 134, and 144 are all off Greater than 0% and less than 25% 114 flashes, 124, 134, and 144 are all off Equal to 0% 114, 124, 134, and 144 are all off

[0043] It should be noted that, for the sake of simplicity and intuitiveness of the table, the first display portion 114 , the second display portion 124 , the third display portion 134 and the fourth display portion 144 are simply abbreviated as corresponding reference numerals in the table.

[0044] Continue to refer Figure 1 and Figure 2In another embodiment, when the power level of the battery module 100 is 100%, the first display unit 114, the second display unit 124, the third display unit 134 and the fourth display unit 144 are all off; when the power level of the battery module 100 is 75% < the power level of the battery module 100 < 100%, the first display unit 114, the second display unit 124, the third display unit 134 are all off, and the fourth display unit 144 flashes; when the power level of the battery module 100 is 75%, the first display unit 114, the second display unit 124, the third display unit 134 are all off, and the fourth display unit 144 is off; when the power level of the battery module 100 is 50% < the power level of the battery module 100 < 75%, the first display unit 114, the second display unit 124, the third display unit 134 are all off, the third display unit 134 flashes, and the fourth display unit 144 is off; The display unit 114 and the second display unit 124 are both off, and the third display unit 134 and the fourth display unit 144 are both off; when the power level of the battery module 100 is less than 25% and less than 50%, the first display unit 114 is off, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are both off. When the power level of the battery module 100 is 25%, the first display unit 114 is off, and the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off. When the remaining power of the battery pack is less than 25%, the first display unit 114 flashes, and the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off. When the power level of the battery module 100 is 0%, the first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off. With this arrangement, the more sufficient the power of the battery module 101 is, the more display parts will be turned off, so that the user can intuitively determine the current power range of the battery module 101, which is beneficial to improving the practicality of the battery pack.

[0045] It is understandable that the number of display parts of the display module 104 can also be other values ​​besides 4, and the power range of the battery module 101 can also be other values ​​besides 4, and the embodiments of the present disclosure do not specifically limit this.

[0046] The display module 104 is used to receive the control signal sent by the controller 103 and adjust the display state of the display unit, so that the user can judge the current power range of the battery module 101 according to the display state of the display unit.

[0047] The display module 104 can be disposed at the front end or both sides of the housing 100 . The display module 104 is preferably disposed at a position that does not affect the normal use of the battery pack.

[0048] In some embodiments, the display module 104 may include a light-emitting assembly and a sign. The light-emitting assembly includes multiple light-emitting units, and the light-emitting assembly determines the display status of the light-emitting units in response to a control signal. The sign includes a translucent identification portion and an opaque main portion. The identification portion is used to identify the product, and the sign is located on a side of the light-emitting module away from the housing. With this configuration, the light-emitting units in the light-emitting assembly adjust their display status to correspond to different power ranges. The user can see the display status of the light-emitting units through the translucent identification portion. Therefore, when the user uses the battery pack, the battery pack can autonomously display the current power range, allowing the user to intuitively determine the current power range of the battery module 101, thereby improving the practicality of the battery pack. When the battery module 101 is in standby mode, the user can also determine the current power range of the battery module 101 by the display status of the light-emitting units, and then choose to use or charge the battery pack, etc., which also improves the practicality of the battery pack. In addition, because the display module consists of a light-emitting component and a signboard, when mass-producing battery packs, the light-emitting component can be mass-produced at one time. For battery packs that require different brand logos, only the corresponding signboards need to be produced. This is conducive to the mass production of battery packs and reduces the production process.

[0049] The light-emitting component is used for emitting light. The light-emitting component includes a plurality of light-emitting units. The light-emitting component determines the display state of the light-emitting unit in response to a control signal. The display state is one of constantly on, off or flashing.

[0050] The signboard identifies the brand of the battery pack product. Specifically, the signboard includes a translucent logo portion and an opaque main body portion. The main body portion is used to contact the shell 100 so that the signboard can be fixed on the battery pack. The logo portion is translucent so that the user can observe the display status of the light-emitting component through the logo portion. The logo portion is also used to constitute a product logo to enhance the product effect and increase the product's popularity.

[0051] In some embodiments, the battery pack may further include a current detection module 105, which is connected to the battery module 101 and is used to detect the discharge current of the battery module 101; wherein the controller 103 is connected to the current detection module 105 and is used to receive the discharge current to obtain whether the battery module 101 is in a working state or a standby state, and output a control signal while the battery module 101 is in a working state or a standby state.

[0052] The controller 103 can use the current detection module to determine whether the battery module 101 is in the working state or the standby state. When the battery module 101 is in the working state, the battery pack can automatically display the current power range when the user uses the battery pack, so that the user can intuitively determine the current power range of the battery module 101, which is conducive to improving the practicality of the battery pack. When the battery module 101 is in the standby state, the user can also determine the current power range of the battery module through the display status of the display module 104, and then choose to use or charge the battery pack, etc., which is also conducive to improving the practicality of the battery pack.

[0053] When the battery module 101 is in working condition and the power level of the battery module 100 is 100%, the first display unit 114, the second display unit 124, the third display unit 134 and the fourth display unit 144 are all constantly on; when the battery module 101 is in working condition and the power level of the battery module 100 is 75% < 100%, the first display unit 114, the second display unit 124, the third display unit 134 are all constantly on, and the fourth display unit 144 flashes. When the battery module 100 is 75% charged, the first display unit 114, the second display unit 124, and the third display unit 134 are all constantly lit, and the fourth display unit 144 is off. When the battery module 101 is in working condition and 50% < the battery module 100 charge level < 75%, the first display unit 114 and the second display unit 124 are all constantly lit, the third display unit 134 flashes, and the fourth display unit 144 is off. When the battery module 101 is in working condition and the battery module 100 charge level is 50%, The first display unit 114 and the second display unit 124 are both constantly on, and the third display unit 134 and the fourth display unit 144 are both off. When the battery module 101 is in working condition and the power level of the battery module 100 is 25% < 50%, the first display unit 114 is constantly on, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are both off. When the battery module 101 is in working condition and the power level of the battery module 100 is 25%, the first display unit 114 is constantly on, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are both off. The first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off; when the battery module 101 is in working condition and the remaining power of the battery pack is less than 25%, the first display unit 114 flashes, and the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off; when the battery module 101 is in working condition and the power of the battery module 100 is 0%, the first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off.

[0054] When the battery module 101 is in standby mode, if the power level of the battery module 101 is greater than or equal to a preset power level, the battery module 101 is considered to be in a usable state, and part of the display unit 114 flashes. At the same time, the brightness of the display unit is set to a lower level, which is lower than the brightness of the display unit when the battery module 101 is in the working state. If the power level of the battery module 101 is less than the preset power level, the battery module 101 is considered to be in an unusable state, and all display units remain off until charging and display are restored. With this arrangement, when the battery module is in standby mode, the battery module 101 can be divided into a usable state and an unusable state. The user can intuitively judge whether the battery module in the standby mode can be directly used based on the display of the display unit, which is conducive to improving the practicality of the battery pack. In addition, when the battery module 101 is in standby mode and in a usable state, part of the display unit flashes and the brightness is low, which is conducive to saving energy.

[0055] The preset power value can be set according to the actual usage of the battery pack. For example, the preset power value can be 10%, 15%, 20%, 25%, etc.

[0056] The current detection module 105 is connected to the battery module 101 and is used to detect the discharge current of the battery module 101. If the current detection module 105 detects that the discharge current of the battery module 101 is greater than or equal to the current preset value, the battery module 101 is in a working state; if the current detection module 105 detects that the discharge current of the battery module 101 is less than the current preset value, the battery module 101 is in a standby state.

[0057] In a specific example, the current preset value can be 2A. When the current detection module 105 detects that the discharge current of the battery module 101 is greater than or equal to 2A, the battery module 101 is in a working state. When the current detection module 105 detects that the discharge current of the battery module 101 is less than 2A, the battery module 101 is in a standby state. In other examples, the current preset value can also be other values. The current preset value can be set according to the actual situation of the battery pack, and the embodiments of the present disclosure are not limited to this.

[0058] In some embodiments, the battery pack may further include an alarm 106 connected to the controller 103. While the battery module 101 is operating, if the current charge level indicated by the voltage signal received by the controller 103 is lower than a preset threshold, the controller controls the alarm 106 to issue an alarm signal. With this configuration, while the battery module 101 is operating, the battery pack can autonomously display the current charge level range via the display module 104 and issue an alarm when the current charge level is lower than a preset threshold. This effectively resolves the issue of battery module 101 shutting down during operation due to ignoring the charge level, thereby improving the reliability of the battery pack.

[0059] The preset threshold value may be set according to actual usage of the battery pack, for example, the preset threshold value may be 10%, 15%, 20%, 25%, etc.

[0060] In some embodiments, the alarm 106 may include a buzzer.

[0061] The buzzer is configured to emit a beep when the battery module 101 is in operation and the battery level of the battery module 101 is below a preset threshold, alerting the user to the low battery level. The harsher sound of the buzzer better alerts the user to the low battery level, preventing the battery module 101 from shutting down during operation due to the user ignoring the battery level, thereby improving the reliability of the battery pack.

[0062] In some embodiments, while the battery module 101 is in standby mode, if the current power level represented by the voltage signal received by the controller 103 is greater than or equal to a preset threshold, the display state of part of the display unit is flashing; if the current power level represented by the voltage signal received by the controller is less than the preset threshold, the display state of the display unit is off. With this arrangement, when the battery module 101 is in standby mode, the battery module 101 can be divided into a usable state and an unusable state. The user can intuitively judge whether the battery module 101 in the standby mode can be directly used based on the display of the display unit, which is conducive to improving the practicality of the battery pack. Moreover, when the battery module 101 is in standby mode and in a usable state, the display unit partially flashes and the brightness is low, which is conducive to saving energy.

[0063] In a specific example, when it is detected that the battery pack discharge current is less than or equal to 2A (current preset value), it is judged that the battery module 101 is in standby state at this time. If the power of the battery module 101 is greater than or equal to 25% (preset threshold), it is considered that the current battery module 101 is in a usable state, and the first display unit 114 flashes at a frequency of once every 30 seconds, and the brightness is set to a low level; if the power of the battery module 101 is greater than or equal to 25%, it is considered that the current battery module 101 is in an unusable state, and the display status of all display units is off until charging resumes.

[0064] The preset threshold value may be set according to actual usage of the battery pack, for example, the preset threshold value may be 10%, 15%, 20%, 25%, etc.

[0065] In some embodiments, the current detection module 105 can also be used to detect the charging current of the power module 101 to determine whether the battery module 101 is in a charging state, and output a control signal when the battery module 101 is in a charging state. In this configuration, when the battery module 101 is in a charging state, the user can understand the current power range of the battery module 101 based on the display of the display module, allowing the user to select a charging time according to different operating time requirements.

[0066] When the battery module 101 is in a charging state and the power level of the battery module 100 is 100%, the first display unit 114, the second display unit 124, the third display unit 134 and the fourth display unit 144 are all constantly on; when the battery module 101 is in a charging state and the power level of the battery module 100 is 75% < 100%, the first display unit 114, the second display unit 124, the third display unit 134 are all constantly on, and the fourth display unit 144 flashes. When the battery module 100 is 75% charged, the first display unit 114, the second display unit 124, and the third display unit 134 are all constantly lit, and the fourth display unit 144 is off. When the battery module 101 is in a charging state and 50% < the battery module 100's charge < 75%, the first display unit 114 and the second display unit 124 are all constantly lit, the third display unit 134 flashes, and the fourth display unit 144 is off. When the battery module 101 is in a charging state and the battery module 100 is 50% charged, The first display unit 114 and the second display unit 124 are both constantly on, and the third display unit 134 and the fourth display unit 144 are both off. When the battery module 101 is in a charging state and the power level of the battery module 100 is 25% < 50%, the first display unit 114 is constantly on, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are both off. When the battery module 101 is in a charging state and the power level of the battery module 100 is 25%, the first display unit 114 is constantly on, the second display unit 124 flashes, and the third display unit 134 and the fourth display unit 144 are both off. The first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off; when the battery module 101 is in a charging state and the remaining power of the battery pack is less than 25%, the first display unit 114 flashes, and the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off; when the battery module 101 is in a charging state and the power of the battery module 100 is 0%, the first display unit 114, the second display unit 124, the third display unit 134, and the fourth display unit 144 are all off.

[0067] In a specific example, when the current detection module 105 detects that the battery module 101 has a current opposite to the discharge current, i.e., a charging current, and the voltage detection module 102 detects that the current voltage value of the battery module 101 is less than the overcharge preset value (e.g., 20.5V), it is considered that the battery pack is in a charging state. At this time, the controller 103 receives the voltage signal and transmits a control signal to the display module 104, and determines the corresponding power range according to the above voltage range. The display state of the display part in the display module is also adjusted accordingly. If it is internally determined that the current battery pack is in a normal charging state, the next display part in the display module 104 will start to flash. For example, if the current battery pack voltage is less than 16±0.5V (i.e., the current power range is less than 25%), all the "LOGO" in the display module 104 will be off, and it will be charged. The "L" of the "LOGO" will continue to flash. As the power continues to be charged and reaches the above critical value (e.g., 25%, 50%, 75%, 100%, etc.), the flashing area will be constantly bright until it is fully charged, and the "LOGO" will be constantly bright. If the battery pack is out of power and the user still needs to use the electrical device to complete a small amount of work, the user can observe the display status of the current display module 104 to know how much power the battery module 101 needs to be charged to continue to complete the small amount of work.

[0068] The LOGOs correspond to the first display portion 114 , the second display portion 124 , the third display portion 134 and the fourth display portion 144 from left to right.

[0069] In the embodiment of the above-mentioned battery pack, the display module includes multiple display parts that constitute the product identification, and the display module can adjust the display status of the display part according to the power of the battery module, so that the battery pack can actively display the current power range of the battery module, so that the user can intuitively judge the current power range of the battery module through the display status of the display part during use and charging, thereby improving the practicality of the battery pack. In addition, the display module includes multiple display parts that constitute the product identification, which can enhance the product effect and increase the popularity of the product.

[0070] Accordingly, another embodiment of the present disclosure further provides an electrical device having a battery pack according to any of the above embodiments. The electrical device provided by another embodiment of the present disclosure will be described in detail below. For parts that are identical or corresponding to the previous embodiment, please refer to the corresponding description of the previous embodiment and will not be repeated in detail below.

[0071] Electrical equipment refers to equipment that requires a battery pack to operate, such as handheld tools, garden tools, etc.

[0072] Those skilled in the art will appreciate that the above-described embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes in form and detail may be made thereto without departing from the spirit and scope of the present disclosure. Any person skilled in the art may make changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope defined in the claims.

Claims

1. A battery pack, characterized in that: The battery pack includes: A housing and a battery module disposed within the housing, wherein the battery module is used to supply power to an electrical device; a voltage detection module, connected to the battery module, for detecting a current charge level of the battery module, and generating and outputting a voltage signal representing the current charge level; a controller connected to the voltage detection module, configured to receive the voltage signal and output a control signal corresponding to the voltage signal; A display module is provided on the housing and connected to the controller. The display module includes a plurality of display parts for constituting product identification. The display module determines the display status of the display parts in response to the control signal.

2. The battery pack according to claim 1, wherein: The controller includes: a voltage comparison module, connected to the voltage detection module, configured to receive the voltage signal, determine a magnitude relationship between the current power level represented by the voltage signal and different power level ranges, obtain an actual power level range, the actual power level range being the power level range to which the current power level belongs, and generate a comparison signal corresponding to the actual power level range; A signal generating module is connected to the voltage comparing module and the display module, and is used to receive the comparison signal and generate and output the control signal.

3. The battery pack according to claim 2, wherein: The signal generating module is connected to each of the display units, the power range corresponds to the display unit one-to-one, and the power range includes a lower limit value and an upper limit value; the display unit is configured so that if the current power is within the power range, the display state of the display unit corresponding to the power range is flashing; if the current power is less than or equal to the lower limit value, the display state of the display unit corresponding to the power range is one of always on or off; if the current power is greater than or equal to the upper limit value, the display state of the display unit corresponding to the power range is the other of always on or off.

4. The battery pack according to claim 1, wherein: The battery pack further includes: a current detection module, connected to the battery module and configured to detect a discharge current of the battery module; The controller is connected to the current detection module and is used to receive the discharge current to obtain whether the battery module is in the working state or the standby state, and output the control signal when the battery module is in the working state or the standby state.

5. The battery pack according to claim 4, wherein: The battery pack further includes: An alarm is connected to the controller, wherein, while the battery module is in the working state, if the current power level represented by the voltage signal received by the controller is lower than a preset threshold, the controller controls the alarm to send an alarm signal.

6. The battery pack according to claim 5, wherein: The alarm includes a buzzer.

7. The battery pack according to claim 4, wherein: When the battery module is in a standby state, if the current power level represented by the voltage signal received by the controller is greater than or equal to a preset threshold, the display state of part of the display unit is flashing; If the current power level represented by the voltage signal received by the controller is less than the preset threshold, the display state of the display unit is off.

8. The battery pack according to claim 4, wherein: The current detection module is further configured to detect the charging current of the battery module to determine whether the battery module is in a charging state, and output the control signal while the battery module is in the charging state.

9. The battery pack according to any one of claims 1 to 8, wherein: The display module includes: a light-emitting component, the light-emitting component comprising a plurality of light-emitting units, the light-emitting component determining a display state of the light-emitting units in response to the control signal; A signboard includes a light-transmitting identification portion and an opaque main body portion, wherein the identification portion is used to constitute the product identification, and the signboard is located on a side of the light-emitting component away from the housing.

10. An electrical device, characterized in that: Comprising a battery pack as described in any one of claims 1 to 9.

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