WO2020024913A1

WO2020024913A1 - Battery assembly, vacuum cleaner, and charging control method and system

Info

Publication number: WO2020024913A1
Application number: PCT/CN2019/098234
Authority: WO
Inventors: 宋东京
Original assignee: 江苏美的清洁电器股份有限公司; 美的集团股份有限公司
Priority date: 2018-08-01
Filing date: 2019-07-29
Publication date: 2020-02-06

Abstract

A battery assembly (1) and a vacuum cleaner having same. The battery assembly (1) comprises: a housing (100), provided with an accommodating cavity (101); an adapter circuit board (200), provided in the accommodating cavity (101); a plurality of soft pack batteries (300), provided in the accommodating cavity (101), positive and negative electrodes of each soft pack battery (300) being electrically connected to the adapter circuit board (200); and a control board (400), provided outside the housing (100) and electrically connected to the adapter circuit board (200).

Description

Battery component, vacuum cleaner and charging control method and system

Cross-reference to related applications

This application is based on a Chinese patent application with application numbers 201821233547.6, 201810864326.7, application date is August 01, 2018, and a Chinese patent application with application number 201811080413.X, and application date is September 17, 2018, and requests the above The priority of Chinese patent applications, the entire contents of the aforementioned Chinese patent applications are incorporated herein by reference.

Technical field

The present application relates to the technical field of electrical appliance manufacturing, and in particular, to a battery component, a vacuum cleaner having the battery component, and a charging control method and system.

Background technique

In related technologies, battery components such as vacuum cleaner power supplies use cylindrical lithium ion batteries as the power source. However, cylindrical lithium batteries have low energy density and cannot meet the requirements of ultra-long use time and ultra-light weight, affecting the user experience.

Application content

This application aims to solve at least one of the technical problems existing in the prior art. For this reason, the present application proposes a battery assembly, which has the advantages of high energy density, less heat generation, and long power supply time.

The present application also proposes a vacuum cleaner having the battery assembly.

This application also proposes a charging control method,

The application also proposes a charging control system.

This application also proposes another charging control system.

In order to achieve the above object, according to an embodiment of the first aspect of the present application, a battery assembly is provided. The battery assembly includes: a housing, the housing is provided with a receiving cavity therein; a transfer circuit board, the transfer circuit board Provided in the accommodating cavity; a plurality of soft-packed batteries, a plurality of the pliable-battery batteries are provided in the accommodating cavity, and a positive electrode and a negative electrode of each of the soft-packed batteries are electrically connected to the transfer circuit board A control board, which is disposed outside the housing and is electrically connected to the transition circuit board.

The battery module according to the embodiment of the present application has the advantages of high energy density, less heat generation, and long power supply time.

In addition, the battery module according to the foregoing embodiments of the present application may also have the following additional technical features:

According to an embodiment of the present application, the soft-pack battery is electrically connected to the transfer circuit board by soldering.

According to an embodiment of the present application, a plurality of the soft-pack batteries are arranged spaced apart from each other in the receiving cavity.

According to an embodiment of the present application, an inner buffer is sandwiched between two adjacent soft-packed batteries.

According to an embodiment of the present application, the inner buffer member is a foam member, an elastic metal member, a phase change material member, or a polymer material member.

According to an embodiment of the present application, each of the inner buffer members is respectively adhesively connected to the adjacent soft-pack battery.

According to an embodiment of the present application, the interval between two adjacent soft-packed batteries is 0.3-3 mm.

According to an embodiment of the present application, an outer buffer is sandwiched between the inner surface of the casing and the soft-pack battery.

According to an embodiment of the present application, the transition circuit board is disposed adjacent to one end in the length direction of the casing and is parallel to both end surfaces in the length direction of the casing, and the control board is perpendicular to the transition circuit. Plate, the length direction of each of the soft pack batteries is parallel to the length direction of the case, the case includes: an upper case; a lower case, the upper case and the lower case are parallel to The casings are arranged in a lengthwise direction, and the upper casing and the lower casing are detachably connected.

An embodiment of the second aspect of the present application proposes a vacuum cleaner including the battery assembly according to the embodiment of the first aspect of the present application.

The vacuum cleaner according to the embodiment of the present application has the advantages of convenient use, long working period, and the like by using the battery assembly according to the embodiment of the first aspect of the present application.

According to an embodiment of the third aspect of the present application, a battery assembly is provided, which includes: an insulating case, wherein the receiving case is provided with a receiving cavity; and a transfer circuit board, the transfer circuit board is at least partially disposed in the receiving portion. In the cavity, a plurality of flat-type batteries, a plurality of the flat-type batteries are arranged in the accommodation cavity in parallel and the positive and negative electrodes of each of the flat-type batteries are electrically connected to the transfer circuit board; a control board The control board is at least partially disposed outside the insulation case and is electrically connected to the transition circuit board, wherein a plane on which the transition circuit board is located and a plane on which the control board is located are perpendicular to each other.

According to an embodiment of the present application, a cable is further included, and the adapter circuit board and the control board are electrically connected through the cable, and the cable is at least partially located between the control board and the insulation case. .

According to an embodiment of the present application, the insulation case is provided with a plurality of fixing posts for fixing the control board, the fixing posts are integrally formed on the insulation case, and a plurality of the flat-type batteries are spaced apart in the up-down direction Arranged at intervals in the left-right direction or at intervals in the front-rear direction.

The battery module according to the embodiment of the present application has the advantages of convenient use, long working cycle, and the like.

According to an embodiment of the fourth aspect of the present application, a charging control method is provided, including:

Detecting the voltage of a single battery in the battery pack;

When the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack;

When the voltage reaches a preset second voltage threshold, the control consumer or the charger turns off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold.

According to the charging control method provided in the embodiment of the present application, first, the voltage of a single battery in a battery pack is detected, and then, when the voltage reaches a preset first voltage threshold, the charging control module in the battery pack is controlled to turn off the battery pack. Charging; when the voltage reaches a preset second voltage threshold, controlling the electrical appliance or charger to turn off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold. With the battery pack, you can control the charging of the battery pack with either the appliance or the charger, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, the appliance or the charger can be controlled to stop. Charging the battery pack ensures the safety of the charging process.

An embodiment of the fifth aspect of the present application provides a charging control system, including:

A battery pack for detecting a voltage of a single battery in the battery pack, inputting the voltage to a consumer, and controlling the charging in the battery pack when the voltage reaches a preset first voltage threshold The control module turns off charging of the battery pack;

The electrical appliance is configured to control the electrical appliance to turn off charging of the battery pack when the voltage reaches a preset second voltage threshold, and the second voltage threshold is equal to or greater than the first voltage threshold .

According to the charging control system provided in the embodiment of the present application, first, the voltage of a single battery in the battery pack is detected, and the voltage is input to the consumer, and then, when the voltage reaches a preset first voltage threshold, the battery pack in the battery pack is controlled. The charging control module turns off the charging of the battery pack; when the voltage reaches a preset second voltage threshold, the control consumer turns off the charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold. Through the battery pack, the electrical appliance can control the charging of the battery pack, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, the electrical appliance or the charger can also be controlled to stop charging the battery pack. Charging can ensure the safety of the charging process.

According to an embodiment of the present application, the battery pack includes: a battery module including a plurality of the single cells connected in series; a first signal transmission module; a first charge control module; a first battery The management module is connected to each of the single-cell batteries, and is configured to detect the voltage of the single-cell battery, and input the voltage to the consumer through the first signal transmission module, and when the voltage reaches When the first voltage threshold is set, controlling the first charging control module to turn off charging of the battery pack.

According to an embodiment of the present application, the consumer includes: a second signal transmission module; a second charge control module; a first micro-control unit, configured to receive the voltage through the second signal transmission module, When the voltage reaches the second voltage threshold, the second charging control module is controlled to turn off charging of the battery pack.

An embodiment of the sixth aspect of the present application proposes another charging control system, including:

A battery pack for detecting a voltage of a single battery in the battery pack, and when the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack When the voltage reaches a preset second voltage threshold, inputting an off-charge control signal to the consumer, the second voltage threshold being equal to or greater than the first voltage threshold;

The electrical consumer is configured to control the electrical consumer to turn off the charging of the battery pack after receiving the shutdown charging control signal.

According to the charging control system provided by the embodiment of the present application, first, the voltage of a single battery in a battery pack is detected, and when the voltage reaches a preset first voltage threshold, the charging control module in the battery pack is controlled to turn off charging of the battery pack. When the voltage reaches a preset second voltage threshold, the off-charge control signal is input to the consumer, and the second voltage threshold is equal to or greater than the first voltage threshold; the consumer controls the consumer to turn off after receiving the off-charge control signal Charge the battery pack. Through the battery pack, the electrical appliance can control the charging of the battery pack, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, the electrical appliance or the charger can also be controlled to stop charging the battery pack. Charging can ensure the safety of the charging process.

According to an embodiment of the present application, the battery pack includes: a battery module including a plurality of the single cells connected in series; a third signal transmission module; a third charge control module; a second battery A management module is connected to each of the single-cell batteries, and is configured to detect a voltage of the single-cell battery, and when the voltage reaches the first voltage threshold, control the third charging control module to turn off the battery. Charging of the package; a third battery management module connected to each of the single cells for detecting a voltage of the single cell, and turning off the charging control when the voltage reaches the second voltage threshold A signal is input to the consumer through the third signal transmission module.

According to an embodiment of the present application, the consumer includes: a fourth signal transmission module; a fourth charging control module; and a second micro-control unit, configured to receive the closed charging control signal through the fourth signal transmission module, and After receiving the closed charge control signal, the fourth charge control module is controlled to turn off the charging of the battery pack.

An embodiment of the seventh aspect of the present application proposes another charging control system, including:

The electrical consumer is configured to receive the off-charge control signal and input the off-charge control signal to a charger;

The charger is configured to control the charger to turn off charging of the battery pack after receiving the off-charge control signal.

According to the charging control system provided by the embodiment of the present application, first, the voltage of a single battery in a battery pack is detected, and when the voltage reaches a preset first voltage threshold, the charging control module in the battery pack is controlled to turn off charging of the battery pack. When the voltage reaches a preset second voltage threshold, the off-charge control signal is input to the consumer, and the second voltage threshold is equal to or greater than the first voltage threshold; the consumer receives the off-charge control signal and inputs the off-charge control signal To the charger; the charger controls the charger to turn off charging of the battery pack after receiving the charge-off control signal. Through the battery pack, the charger can control the charging of the battery pack, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, it can also control the electrical appliances or the charger to stop charging the battery pack. Charging can ensure the safety of the charging process.

According to an embodiment of the present application, the battery pack includes a battery module including a plurality of the single cells connected in series, a fifth signal transmission module, a fifth charge control module, and a fourth battery. A management module is connected to each of the single batteries, and is configured to detect a voltage of the single battery, and when the voltage reaches the first voltage threshold, control the fifth charging control module to turn off the battery. Charging of a package; a fifth battery management module, connected to each of the single cells, for detecting a voltage of the single cell, and turning off the charging control when the voltage reaches the second voltage threshold A signal is input to the consumer through the fifth signal transmission module.

According to an embodiment of the present application, the consumer includes: a sixth signal transmission module; a seventh signal transmission module; and a third micro-control unit for receiving the off-charge control signal through the sixth signal transmission module, After receiving the off-charge control signal, the off-charge control signal is input to the charger through the seventh signal transmission module.

According to an embodiment of the present application, the charger includes: an eighth signal transmission module; a sixth charging control module; a fourth micro-control unit for receiving the off-charge control signal through the eighth signal transmission module, And after receiving the shutdown charging control signal, controlling the sixth charging control module to turn off charging of the battery pack.

According to an embodiment of the eighth aspect of the present application, a battery assembly is provided. The battery assembly includes: a housing, wherein the housing is provided with a receiving cavity; a switching circuit board is provided in the receiving cavity; and A soft pack battery, a plurality of the soft pack batteries are provided in the accommodating cavity, and the positive and negative electrodes of each of the soft pack batteries are electrically connected to the transfer circuit board; a control board, the control board is provided Outside the housing and electrically connected to the transition circuit board, wherein the control method of the control board includes:

Detecting the voltage of a single battery in the battery pack;

According to an embodiment of the ninth aspect of the present application, a battery assembly is provided. The battery assembly includes: a housing, wherein the housing is provided with a receiving cavity; a transfer circuit board is provided in the receiving cavity; and A soft pack battery, a plurality of the soft pack batteries are provided in the accommodating cavity, and the positive and negative electrodes of each of the soft pack batteries are electrically connected to the transfer circuit board; a control board, the control board is provided Outside the casing and electrically connected to the switching circuit board, wherein the control board has a charging control system, the charging control system includes:

A battery pack, configured to detect a voltage of a single soft-pack battery in the battery pack, and when the voltage reaches a preset first voltage threshold, control a charging control module in the battery pack to turn off the battery pack Charging, when the voltage reaches a preset second voltage threshold, inputting an off-charge control signal to the consumer, the second voltage threshold being equal to or greater than the first voltage threshold;

Additional aspects and advantages of the present application will be given in part in the following description, part of which will become apparent from the following description, or be learned through practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic structural diagram of a battery module according to an embodiment of the present application.

FIG. 2 is an exploded view of a battery assembly according to an embodiment of the present application.

FIG. 3 is a schematic partial structural diagram of a battery module according to an embodiment of the present application.

FIG. 4 is a schematic partial structural diagram of a battery module according to an embodiment of the present application.

FIG. 5 is a partial structural diagram of a battery module according to an embodiment of the present application.

6 is a flowchart of a charging control method according to an embodiment of the present application;

7 is a structural diagram of a charging control system according to an embodiment of the present application;

8 is a specific structural diagram of a charging control system of the embodiment shown in FIG. 7;

9 is a specific structural diagram of a charging control system of the embodiment shown in FIG. 7;

10 is a structural diagram of a charging control system according to another embodiment of the present application;

FIG. 11 is a specific configuration diagram of the charging control system of the embodiment shown in FIG. 10.

Reference numerals: battery assembly 1, housing 100, receiving cavity 101, upper housing 110, lower housing 120, adapter circuit board 200, flexible battery 300, control board 400, inner buffer 510, outer buffer 520 .

detailed description

Hereinafter, embodiments of the present application will be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and should not be construed as limiting the present application.

A battery module 1 according to an embodiment of the present application will be described below with reference to the drawings.

As shown in FIGS. 1-5, the battery assembly 1 according to the embodiment of the present application includes a housing 100, a switching circuit board 200, a flexible battery 300, and a control board 400.

A housing cavity 101 is provided in the housing 100. The switching circuit board 200 is disposed in the receiving cavity 101. A plurality of flexible battery packs 300 are disposed in the accommodating cavity 101, and the positive and negative electrodes of each flexible battery pack 300 are electrically connected to the transfer circuit board 200. The control board 400 is disposed outside the casing 100 and is electrically connected to the transition circuit board 200.

According to the battery assembly 1 of the embodiment of the present application, the positive and negative electrodes of each flexible battery 300 are electrically connected to the flexible circuit board 200 by providing the flexible circuit board 200 and the flexible battery 300, which facilitates connecting multiple flexible batteries The battery packs 300 are connected in parallel, which facilitates the assembly of a plurality of flexible battery packs 300 into the battery pack 1, which facilitates the increase of the output current of the battery pack 1, thereby increasing the applicable range of the battery pack 1, and improving the working performance of the battery pack 1.

At the same time, the setting of the switching circuit board 200 is convenient for fixing the soft case battery 300, thereby facilitating the positioning of the soft case battery 300, and avoiding the direct connection of the wires to cause the soft case battery 300 to easily shift and shake, which is convenient for improving the soft case The structural stability and installation reliability of the battery 300.

In addition, by providing the switching circuit board 200 and the soft-pack battery 300 to facilitate the assembly of the battery pack 1, compared with the battery pack in the related art, it is convenient to increase the energy density of the battery pack 1 and to increase the power supply time of the battery pack 1 and To meet the dual needs of users for long periods of use and ultra-light weight, such as increasing the working time of the vacuum cleaner and reducing the weight of the vacuum cleaner. At the same time, it is convenient to reduce the heat generation of the battery module 1, avoid excessive heating of the battery module 1 and affect its normal work, and improve the working reliability and stability of the battery module 1.

In addition, by setting the control board 400, the control board 400 is electrically connected to the transfer circuit board 200, so that the voltage signals and positive and negative power signals of multiple soft-pack batteries 300 can be transmitted to the control board 400 through the transfer circuit board 200, which is convenient for control The board 400 controls and manages multiple soft-pack batteries 300, which is convenient for improving the reliability and automation level of the battery pack 1.

Therefore, the battery module 1 according to the embodiment of the present application has the advantages of high energy density, less heat generation, and long power supply time.

The battery assembly 1 according to a specific embodiment of the present application will be described below with reference to the drawings.

In some specific embodiments of the present application, as shown in FIGS. 1-5, the battery assembly 1 according to the embodiment of the present application includes a case 100, a switch circuit board 200, a flexible battery 300, and a control board 400.

Specifically, the soft-pack battery 300 is electrically connected to the switching circuit board 200 by soldering. In this way, it is convenient to ensure the connection strength between the flexible battery 300 and the transfer circuit board 200, and it is convenient to improve the reliability and stability of the electrical connection between the flexible battery 300 and the transfer circuit board 200.

Optionally, a plurality of soft-pack batteries 300 are arranged spaced apart from each other in the receiving cavity 101. In this way, a gap can be left between the adjacent soft-packed batteries 300 to facilitate the heat dissipation of the soft-packed batteries 300 and to improve the heat dissipation performance of the battery assembly 1.

Further, as shown in FIGS. 4 and 5, an inner buffer member 510 is sandwiched between two adjacent soft-packed batteries 300. This not only facilitates the installation of multiple soft-pack batteries 300, but also buffers the shocks received by the soft-pack batteries 300, absorbs energy in the vibration, and improves the shock-absorbing and buffering effect of the soft-pack batteries 300.

Furthermore, the inner buffer member 510 is a foam member, an elastic metal member, a phase change material member, or a polymer material member. This not only facilitates improving the buffering performance of the inner buffering member 510, but also improves the heat dissipation performance of the inner buffering member 510, and further facilitates the soft-packed battery 300 for heat dissipation.

Optionally, each inner buffer member 510 is adhesively connected to the adjacent soft-packed battery 300, respectively. For example, the inner cushioning member 510 is a foam having double-sided adhesiveness. This facilitates the reliable fixed connection between the adjacent soft pack batteries 300, further facilitates the smooth setting of the soft pack batteries 300, and reduces the connection cost between the soft pack batteries 300.

Specifically, the interval between two adjacent soft pack batteries 300 is 0.3-3 mm. This can not only make the battery module 1 have a reasonable size, but also facilitate the improvement of the heat dissipation effect of the flexible battery 300.

Optionally, as shown in FIG. 2, an outer buffer member 520 is sandwiched between the inner surface of the case 100 and the flexible battery 300. This can not only improve the cushioning and shock absorbing effect between the case 100 and the soft case battery 300, and reduce the impact of the external force on the soft case battery 300, but also will not affect the battery assembly 1 after the long-term use of the soft case battery 300 expands. Shape.

Further, the material of the outer buffer member 520 may be the same as the material of the inner buffer member 510, and the outer buffer member 520 may not be bonded to the case 100 and the flexible battery 300 to facilitate the disassembly of the case 100 and the flexible package. Replacement and maintenance of the battery 300.

Specifically, as shown in FIG. 2, one end of the transition circuit board 200 adjacent to the length direction of the casing 100 is parallel to both end surfaces of the casing 100 in the length direction, and the control board 400 is perpendicular to the transition circuit board 200. The length direction of the flexible battery 300 is parallel to the length direction of the case 100. The case 100 includes an upper case 110 and a lower case 120 (the up-down direction is shown by arrow A in FIG. 1). The upper case 110 and the lower case 120 are arranged in a direction parallel to the length direction of the case 100, and the upper case 110 and the lower case 120 are detachably connected. Specifically, the upper case 110 and the lower case 120 may be detachably connected by a threaded fastener. This not only facilitates the installation of the flexible battery 300, facilitates the electrical connection between the flexible battery 300 and the switching circuit board 200, facilitates the electrical connection of the switching circuit board 200 and the control board 400, but also facilitates the installation and removal of the housing 100, which is convenient. The reliability and stability of the fixed connection between the upper case 110 and the lower case 120 are improved.

A vacuum cleaner according to an embodiment of the present application will be described below. The vacuum cleaner according to the embodiment of the present application includes the battery pack 1 according to the above-mentioned embodiment of the present application.

According to the vacuum cleaner of the embodiment of the present application, by using the battery module 1 according to the above-mentioned embodiment of the present application, it has the advantages of convenient use, long working period, and the like.

The following describes a battery assembly according to an embodiment of the present application. The battery assembly includes: an insulating case having a receiving cavity therein; a switching circuit board at least partially disposed in the receiving cavity; a plurality of A flat-type battery, a plurality of the flat-type batteries are arranged in the accommodation cavity in parallel and the positive and negative electrodes of each of the flat-type batteries are electrically connected to the transfer circuit board; a control board, the control board It is at least partially provided outside the insulation case and is electrically connected to the transition circuit board, wherein the plane on which the transition circuit board is located and the plane on which the control board is located are perpendicular to each other.

Specifically, a cable is further included, and the transfer circuit board and the control board are electrically connected through the cable, and the cable is at least partially located between the control board and the insulation case.

Optionally, the insulation case is provided with a plurality of fixing posts for fixing the control board, the fixing posts are integrally formed on the insulation case, and a plurality of the flat-type batteries are arranged at intervals in the up-down direction or along the left and right The directions are arranged at intervals or along the front-back direction (the front-back direction is shown by arrow B in FIG. 1 and the left-right direction is shown by arrow C in FIG. 1. It should be understood here that the directions shown in the figure are for ease of expression only. There is no restriction on the actual setting direction of this embodiment).

The following describes the charging control method and system in the embodiments of the present application with reference to the drawings.

The charging time and battery life of a vacuum cleaner are important conditions for users to choose a charger. Lithium-ion batteries are widely used in vacuum cleaners due to their high energy density and long cycle life.

In related technologies, the charging system of a vacuum cleaner is usually a power adapter with a higher output voltage, and in addition to a battery management system (BMS) in a battery pack, the charging of the vacuum cleaner is controlled through the BMS. When the BMS fails due to abnormalities such as circuit boards, overcharging is prone to occur, leading to potential safety hazards during the charging process of the vacuum cleaner.

FIG. 6 is a flowchart of a charging control method according to an embodiment of the present application. As shown in FIG. 6, the charging control method includes:

S101: Detect a voltage of a single battery in a battery pack.

In the embodiment of the present application, the voltage of a single battery in the battery pack can be detected in real time by the battery management module in the battery pack.

S102. When the voltage reaches a preset first voltage threshold, control the charging control module in the battery pack to turn off charging of the battery pack.

In the embodiment of the present application, a first voltage threshold may be set in advance. The first voltage threshold may specifically be a critical value of a single battery voltage abnormality in the battery pack. When the single battery voltage in the battery pack is equal to or greater than the first voltage threshold, Then it can be judged that the single battery voltage in the battery pack is in an abnormal state. After detecting the single battery voltage in the battery pack in step S101, the single battery voltage is compared with the first voltage threshold. When the single battery voltage reaches a preset At the first voltage threshold, it can be judged that the voltage of a single battery in the battery pack is in an abnormal state, and the charging control module in the battery pack is controlled to turn off the charging of the battery pack to ensure the safety of the charging process. As a feasible implementation manner, the charge-discharge metal-oxide-semiconductor transistor (Metal-Oxide-Semiconductor Transistor (MOS) for short) in the charge control module can be controlled to turn off the charging of the battery pack.

S103. When the voltage reaches a preset second voltage threshold, control the electrical appliance or charger to turn off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold.

In the embodiment of the present application, a second voltage threshold may be set in advance. The second voltage threshold may specifically be a critical value of a single battery voltage abnormality in the battery pack. When the single battery voltage in the battery pack is equal to or greater than the second voltage threshold, Then it can be judged that the single battery voltage in the battery pack is in an abnormal state. After detecting the single battery voltage in the battery pack in step S101, the single battery voltage is compared with the second voltage threshold. When the single battery voltage reaches a preset At the second voltage threshold, it can be judged that the voltage of a single battery in the battery pack is in an abnormal state, and the electrical appliance or the charger is controlled to turn off the charging of the battery pack to ensure the safety of the charging process. The second voltage threshold is greater than the first voltage threshold. The electric appliance may be a vacuum cleaner or the like. As a feasible implementation manner, the charge / discharge MOS tube in the consumer or the charger can be controlled to turn off to turn off the charging of the battery pack.

FIG. 7 is a structural diagram of a charging control system according to an embodiment of the present application. As shown in FIG. 7, the charging control system includes a battery pack 10 and a consumer 11. As a first feasible implementation manner, wherein:

The battery pack 10 is used for detecting the voltage of a single battery in the battery pack, and inputting the voltage to the consumer 11, and when the voltage reaches a preset first voltage threshold, controlling the charging control module in the battery pack 10 to turn off the battery. Charge for pack 10;

The electric appliance 11 is configured to control the electric appliance 11 to turn off charging of the battery pack 10 when the voltage reaches a preset second voltage threshold, and the second voltage threshold is equal to or greater than the first voltage threshold.

In the embodiment of the present application, the first voltage threshold and the second voltage threshold may be set in advance. The first voltage threshold and the second voltage threshold may specifically be threshold values of abnormal voltage of a single battery in the battery pack 10. When the battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single battery voltage in the battery pack 10 is in an abnormal state, where the second voltage threshold is equal to or greater than the first voltage threshold. The battery management module in the battery pack 10 detects the voltage of a single battery in the battery pack 10 and inputs the voltage to the consumer 11. As a feasible implementation manner, connectable signal transmission terminals may be provided on the battery pack 10 and the consumer 11 respectively, and the battery pack 10 may input a voltage to the consumer 11 through the signal transmission terminal. The battery pack 10 compares the voltage with the first voltage threshold. When the voltage reaches the preset first voltage threshold, it can be determined that the voltage of a single battery in the battery pack 10 is in an abnormal state, and the charge control module in the battery pack 10 is turned off. The charging of the battery pack 10, as a feasible implementation manner, can control the charge and discharge MOS tube in the charge control module in the battery pack 10 to be turned off to turn off the charging of the battery pack 10 and ensure the safety of the charging process; the electric appliance 11 The received voltage is compared with a second voltage threshold. When the voltage reaches a preset second voltage threshold, it can be judged that a single battery voltage in the battery pack 10 is in an abnormal state, and the control consumer 11 turns off the charging of the battery pack 10 As a feasible implementation manner, the charge-discharge MOS tube in the consumer 11 can be controlled to turn off to turn off the charging of the battery pack 10, which can still ensure the charging process when the charging control system in the battery pack 10 fails. Safety.

FIG. 8 is a specific structural diagram of the charging control system of the embodiment shown in FIG. 7. As shown in FIG. 8, based on the embodiment shown in FIG. 7, in the charging control system, the battery pack 10 includes:

A battery module 12, which includes a plurality of single cells connected in series;

First signal transmission module 13;

First charging control module 15;

The first battery management module 14 is connected to each single battery and is used to detect the voltage of the single battery and input the voltage to the consumer 11 through the first signal transmission module 13; and when the voltage reaches the first voltage threshold, control The first charging control module 15 turns off charging of the battery pack 10.

The electrical appliance 11 includes:

Second signal transmission module 16;

Second charging control module 18;

The first micro control unit 17 is configured to receive a voltage through the second signal transmission module 16 and control the second charging control module 18 to turn off the charging of the battery pack 10 when the voltage reaches a second voltage threshold.

In the embodiment of the present application, a first voltage threshold and a second voltage threshold are set in advance. The first voltage threshold and the second voltage threshold may specifically be a threshold value of a single battery voltage abnormality in the battery module 12. When the single-cell battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single-cell battery voltage in the battery module 12 is in an abnormal state. The first battery management module 14 is connected to the battery module 12, and the voltage of a single battery in the battery module 12 is detected by the first battery management module 14. As a feasible implementation manner, the first battery management module 14 may specifically include: The battery management integrated circuit (Integrated Circuit, IC for short) shown in FIG. 8 can detect the voltage of a single battery in the battery module 12 through the battery management IC. After the first battery management module 14 detects the voltage of a single battery, the voltage is input to the consumer 11 through the first signal transmission module 13, and may be specifically input to the second signal transmission module 16 in the consumer 11 as a kind of In a feasible implementation manner, the first signal transmission module 13 and the second signal transmission module 16 may be connectable signal transmission terminals as shown in FIG. 8, and the battery pack 10 inputs the detected voltage to the consumer 11 through the signal transmission terminals. At the same time, the first battery management module 14 compares the voltage with the first voltage threshold. When the voltage reaches the first voltage threshold, it can be judged that the single battery voltage in the battery module 12 is in an abnormal state and controls the first charging control module 15 Turning off the charging of the battery pack, as a feasible implementation manner, the charging and discharging MOS tube in the first charging control module 15 can be controlled to turn off to charge the battery pack 10 to ensure the safety of the charging process. After receiving the voltage input from the battery pack 10, the second signal transmission module 16 in the electric appliance 11 inputs the voltage to the first micro-control unit 17, and the first micro-control unit 17 compares the voltage value with the second voltage threshold, and when the voltage reaches At the second voltage threshold, it can be judged that the single battery voltage in the battery module 12 is in an abnormal state, and the second charging control module 18 is controlled to turn off the charging of the battery pack 10. As a feasible implementation manner, the second charging can be controlled The charge-discharge MOS tube in the control module 18 is turned off to turn off the charging of the battery pack 10. When the charging control system in the battery pack 10 fails, the safety of the charging process can still be guaranteed.

As shown in FIG. 7, the charging control system of the embodiment of the present application includes: a battery pack 10 and a consumer 11. As a second feasible implementation manner, wherein:

The battery pack 10 is used to detect the voltage of a single battery in the battery pack 10, and when the voltage reaches a preset first voltage threshold, control the charging control module in the battery pack 10 to turn off the charging of the battery pack 10, and when the voltage reaches When the preset second voltage threshold value is input, the off-charge control signal is input to the electric appliance 11, and the second voltage threshold value is equal to or greater than the first voltage threshold value;

The electric appliance 11 is configured to control the electric appliance 11 to turn off the charging of the battery pack 10 after receiving the off-charge control signal.

In the embodiment of the present application, the first voltage threshold and the second voltage threshold may be set in advance. The first voltage threshold and the second voltage threshold may specifically be threshold values of abnormal voltage of a single battery in the battery pack 10. When the battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single battery voltage in the battery pack 10 is in an abnormal state, where the second voltage threshold is equal to or greater than the first voltage threshold. The battery management module in the battery pack 10 detects the voltage of a single battery in the battery pack. The battery pack 10 compares the voltage with the first voltage threshold and the second voltage threshold. When the voltage reaches a preset first voltage threshold, the It is determined that the voltage of a single battery in the battery pack 10 is in an abnormal state, and the charge control module in the battery pack 10 is controlled to turn off the charging of the battery pack 10. As a feasible implementation manner, The charge and discharge MOS tube is turned off to turn off the charging of the battery pack 10 to ensure the safety of the charging process; when the voltage reaches a preset second voltage threshold, it can be judged that the single battery voltage in the battery pack 10 is in an abnormal state, and the battery pack 10 generates a shutdown charging control signal and inputs it to the consumer 11. As a feasible implementation manner, connectable signal transmission terminals can be provided on the battery pack 10 and the consumer 11 respectively, and the battery pack 10 can be transmitted through the signal. The terminal inputs the off-charge control signal to the consumer 11. After the electrical appliance 11 receives the close-charge control signal, the electrical appliance 11 is controlled to turn off the charging of the battery pack. As a feasible implementation manner, the charge-discharge MOS tube in the electrical appliance 11 can be controlled to turn off to close the battery pack 10 Charging can ensure the safety of the charging process when the charging control system in the battery pack 10 fails.

According to the charging control system provided in the embodiment of the present application, first, the voltage of a single battery in a battery pack is detected, and then, when the voltage reaches a preset first voltage threshold, the charge control module in the battery pack is controlled to turn off the battery pack. Charging; when the voltage reaches a preset second voltage threshold, input a charge-off control signal to the consumer to control the consumer to turn off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold. Through the battery pack, the electrical appliance can control the charging of the battery pack, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, the electrical appliance or the charger can also be controlled to stop charging the battery pack. Charging can ensure the safety of the charging process.

FIG. 10 is a specific structural diagram of the charging control system of the embodiment shown in FIG. 7. As shown in FIG. 10, based on the embodiment shown in FIG. 7, in the charging control system, the battery pack 10 includes:

Third signal transmission module 23;

Third charging control module 26;

The second battery management module 25 is connected to each single battery and is used to detect the voltage of the single battery, and when the voltage reaches the first voltage threshold, control the third charging control module 26 to turn off the charging of the battery pack 10;

The third battery management module 24 is connected to each single battery, and is used to detect the voltage of the single battery, and when the voltage reaches the second voltage threshold, the off-charge control signal is input to the consumer 11 through the third signal transmission module 23 .

The electrical appliance 11 includes:

Fourth signal transmission module 27;

Fourth charging control module 29;

The second micro control unit 28 is configured to receive the closed charging control signal through the fourth signal transmission module 27, and control the fourth charging control module 29 to turn off the charging of the battery pack 10 after receiving the closed charging control signal.

In the embodiment of the present application, a first voltage threshold and a second voltage threshold are set in advance. The first voltage threshold and the second voltage threshold may specifically be a threshold value of a single battery voltage abnormality in the battery module 12. When the single-cell battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single-cell battery voltage in the battery module 12 is in an abnormal state. The second battery management module 25 and the third battery management module 24 are connected to the battery module 12, and the voltage of a single battery in the battery module 12 is detected by the second battery management module 25 and the third battery management module 24 as a feasible method. In an embodiment, the second battery management module 25 and the third battery management module 24 may specifically include a battery management IC as shown in FIG. 9, and the voltage of a single battery in the battery module 12 may be detected by the battery management IC. The second battery management module 25 compares the detected voltage with the first voltage threshold. When the voltage reaches the first voltage threshold, it can determine that the voltage of a single battery in the battery module 12 is in an abnormal state, and control the third charging control module 26 Turning off the charging of the battery pack 10 is a feasible implementation manner, which can control the charging and discharging MOS tube in the third charging control module 26 to be turned off to turn off the charging of the battery pack 10 and ensure the safety of the charging process. The third battery management module 24 compares the detected voltage with the second voltage threshold. When the voltage reaches the second voltage threshold, it can determine that the single-cell battery voltage in the battery module 12 is in an abnormal state, and generate a shutdown charging control signal, The off-charge control signal is input to the consumer 11 through the third signal transmission module 23, and may be specifically input to the fourth signal transmission module 27 in the consumer 11. As a feasible implementation manner, the third signal transmission module 23, the fourth The signal transmission module 27 may be a connectable signal transmission terminal as shown in FIG. 9. The battery pack 10 inputs the off-charge control signal to the consumer 11 through the signal transmission terminal. The fourth signal transmission module 27 in the consumer 11 receives the battery. After the charge-off control signal input from the pack 10 is input, the charge-off control signal is input to the second micro-control unit 28, and the second micro-control unit 28 controls the fourth charge control module 29 to turn off the charging of the battery pack 10 as a feasible In an implementation manner, the charge and discharge MOS tube in the fourth charge control module 29 can be controlled to be turned off to turn off the charging of the battery pack 10. When the charge control system failure, still be able to ensure safe charging process.

FIG. 10 is a structural diagram of a charging control system according to another embodiment of the present application. As shown in FIG. 10, the charging control system includes:

The battery pack 10 is used to detect the voltage of a single battery in the battery pack 10, and when the voltage reaches a preset first voltage threshold, control the charge control module in the battery pack 10 to turn off the charging of the battery pack. When the second voltage threshold is set, the off-charge control signal is input to the electric appliance 11, and the second voltage threshold is equal to or greater than the first voltage threshold;

The electric appliance 11 is configured to receive the off-charge control signal and input the off-charge control signal to the charger 32;

The charger 32 is configured to control the charger 32 to turn off the charging of the battery pack 10 after receiving the charge-off control signal.

In the embodiment of the present application, the first voltage threshold, the second voltage threshold, the first voltage threshold, and the second voltage threshold may be specifically a threshold value of a single battery voltage abnormality in the battery pack 10. When the battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single battery voltage in the battery pack 10 is in an abnormal state, where the second voltage threshold is equal to or greater than the first voltage threshold. The battery management module in the battery pack 10 detects the voltage of a single battery in the battery pack. The battery pack 10 compares the voltage with the first voltage threshold and the second voltage threshold. When the voltage reaches a preset first voltage threshold, the Determine that the voltage of a single battery in the battery pack 10 is in an abnormal state, and control the charge control module in the battery pack 10 to turn off the charging of the battery pack 10. As a feasible implementation manner, the charge and discharge MOS tube in the charge control module can be controlled to be turned off. To turn off the charging of the battery pack 10 to ensure the safety of the charging process; when the voltage reaches a preset second voltage threshold, it can be judged that the single-cell battery voltage in the battery pack 10 is in an abnormal state, and the battery pack 10 generates a close charge control Signal and input it to the consumer 11 as a feasible implementation manner, connectable signal transmission terminals can be provided on the battery pack 10 and the consumer 11 respectively, and the battery pack 10 can turn off the charging control through the signal transmission terminal The signal is input to the consumer 11. After the consumer electronics 11 receives the charge-off control signal and inputs it to the charger 32, as a feasible implementation manner, connectable signal transmission terminals can be provided on the consumer electronics 11 and the charger 32, respectively. The shutdown charging control signal can be input to the charger 32 through the signal transmission terminal, and the charger 32 is controlled to turn off the charging of the battery pack. As a feasible implementation manner, the charge and discharge MOS tube in the charger 32 can be controlled to be turned off to turn off The charging of the battery pack 10 can still ensure the safety of the charging process when the charging control system in the battery pack 10 fails.

According to the charging control system provided in the embodiment of the present application, first, the voltage of a single battery in a battery pack is detected, and then, when the voltage reaches a preset first voltage threshold, the charge control module in the battery pack is controlled to turn off the battery pack. Charging; when the voltage reaches a preset second voltage threshold, input a charge-off control signal to the consumer. The consumer receives the charge-off control signal and inputs it to the charger to control the charger to turn off the charging of the battery pack. The two voltage thresholds are equal to or greater than the first voltage threshold. Through the battery pack, the charger can control the charging of the battery pack, so that when the voltage of a single battery in the battery pack is abnormal and the battery management system in the battery pack fails, it can also control the electrical appliances or the charger to stop charging the battery pack. Charging can ensure the safety of the charging process.

FIG. 11 is a specific structural diagram of the charging control system of the embodiment of FIG. 10. As shown in FIG. 11, in the charging control system, the battery pack 10 includes:

A fifth signal transmission module 33;

A fifth charging control module 36;

The fourth battery management module 35 is connected to each single battery and is used to detect the voltage of the single battery, and when the voltage reaches the first voltage threshold, control the fifth charging control module 36 to turn off the charging of the battery pack;

The fifth battery management module 34 is connected to each single battery and is used to detect the voltage of the single battery, and when the voltage reaches the second voltage threshold, the off-charge control signal is input to the consumer 11 through the fifth signal transmission module 33 .

The electrical appliance 11 includes:

A sixth signal transmission module 37;

Seventh signal transmission module 39;

The third micro-control unit 38 is configured to receive the off-charge control signal through the sixth signal transmission module 37, and after receiving the off-charge control signal, input the off-charge control signal to the charger 32 through the seventh signal transmission module 39.

The charger 32 includes:

An eighth signal transmission module 40;

A sixth charging control module 42;

The fourth micro-control unit 41 is configured to receive the off-charge control signal through the eighth signal transmission module 40, and after receiving the off-charge control signal, control the sixth charge control module 42 to turn off the charging of the battery pack.

In the embodiment of the present application, a first voltage threshold and a second voltage threshold are set in advance. The first voltage threshold and the second voltage threshold may specifically be a threshold value of a single battery voltage abnormality in the battery module 12. When the single-cell battery voltage is equal to or greater than the first voltage threshold or the second voltage threshold, it can be determined that the single-cell battery voltage in the battery module 12 is in an abnormal state. The fourth battery management module 35 and the fifth battery management module 34 are connected to the battery module 12, and the voltage of a single battery in the battery module 12 is detected by the fourth battery management module 35 and the fifth battery management module 34 as a feasible method. In an embodiment, the fourth battery management module 35 and the fifth battery management module 34 may specifically include a battery management IC as shown in FIG. 11, and the voltage of a single battery in the battery module 12 may be detected by the battery management IC. The fourth battery management module 35 compares the detected voltage with the first voltage threshold. When the voltage reaches the first voltage threshold, it can determine that the single-cell battery voltage in the battery module 12 is in an abnormal state, and control the fifth charging control module 36 Turning off the charging of the battery pack 10 is a feasible implementation manner, and the charge-discharge MOS tube in the fifth charging control module 36 can be controlled to turn off the charging of the battery pack 10 to ensure the safety of the charging process. The fifth battery management module 34 compares the detected voltage with the second voltage threshold. When the voltage reaches the second voltage threshold, it can determine that the single-cell battery voltage in the battery module 12 is in an abnormal state, and generate a shutdown charging control signal, and The charging control signal is input to the consumer 11 through the fifth signal transmission module 33, and may be specifically input to the sixth signal transmission module 37 in the consumer 11. As a feasible implementation manner, the fifth signal transmission module 33, the sixth The signal transmission module 37 may be a connectable signal transmission terminal as shown in FIG. 11. The battery pack 10 inputs the off-charge control signal to the consumer 11 through the signal transmission terminal. The sixth signal transmission module 37 in the consumer 11 receives the battery. After the charge-off control signal input from the package 10 is input, the charge-off control signal is input to the third micro-control unit 38, and the third micro-control unit 38 inputs the charge-off control signal to the charger 32 through the seventh signal transmission module 39. The eighth signal transmission module 40 input to the charger 32 is a feasible implementation manner. The seventh signal transmission module 39 and the eighth signal transmission module 39 The transmission module 40 may be a connectable signal transmission terminal as shown in FIG. 11. The consumer 11 inputs the off-charge control signal to the charger 32 through the signal transmission terminal. The eighth signal transmission module 40 in the charger 32 receives the consumer. After the 11-off charging control signal is input, the off-charging control signal is input to the fourth micro-control unit 41. The fourth micro-control unit 41 controls the sixth charging control module 42 to turn off the charging of the battery pack 10 as a feasible implementation. In this way, the charge and discharge MOS tube in the sixth charge control module 42 can be controlled to turn off to turn off the charging of the battery pack 10. When the charge control system in the battery pack 10 fails, the safety of the charging process can still be guaranteed.

A battery module 1 according to a specific embodiment of the present application will be described below with reference to the drawings.

In one embodiment of the present application, the battery assembly 1 includes a housing, a switching circuit board, a plurality of flexible battery packs, and a control board. The housing is provided with a receiving cavity therein. The switching circuit board is disposed in the receiving cavity. A plurality of the soft pack batteries are disposed in the accommodating cavity, and the positive and negative electrodes of each of the soft pack batteries are electrically connected to the transfer circuit board. A control board, which is disposed outside the housing and is electrically connected to the transition circuit board, wherein the control method of the control board includes:

Detecting the voltage of a single battery in the battery pack;

The battery module 1 according to the embodiment of the present application has the advantages of convenient use, long working period, and the like.

A battery module 1 according to another embodiment of the present application will be described below with reference to the drawings.

In one embodiment of the present application, the battery assembly 1 includes a housing, a switching circuit board, a plurality of flexible battery packs, and a control board. The housing is provided with a receiving cavity therein. The switching circuit board is disposed in the receiving cavity. A plurality of the soft pack batteries are disposed in the accommodating cavity, and the positive and negative electrodes of each of the soft pack batteries are electrically connected to the transfer circuit board. The control board is disposed outside the housing and is electrically connected to the transition circuit board, wherein the control board has a charging control system, and the charging control system includes:

Other configurations and operations of the vacuum cleaner according to the embodiment of the present application are known to those skilled in the art, and will not be described in detail here.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear "," left "," right "," vertical "," horizontal "," top "," bottom "," inside "," outside "," clockwise "," counterclockwise "," axial ", The directions or positional relationships indicated by "radial" and "circumferential" are based on the positional or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying the device or element referred to. It must have a specific orientation and be constructed and operated in a specific orientation, so it cannot be understood as a limitation on this application. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "multiple" means two or more. In the description of the present application, the first feature "above" or "below" the second feature may include the first and second features in direct contact, or the first and second features may not be in direct contact but through them Additional characteristic contact between.

In the description of the present application, the first feature is "above", "above", and "above" the second feature, and includes the first feature directly above and obliquely above the second feature, or merely indicates that the first feature is higher in level and height than The second feature.

In the description of this application, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless explicitly stated and limited otherwise. For example, they may be fixed connections or removable Connected or integrated; it can be mechanical or electrical; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples”, etc., means in combination with the implementation The specific features, structures, materials, or characteristics described in the examples or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims

A battery assembly, comprising:

A housing provided with a receiving cavity therein;

A switching circuit board, which is arranged in the receiving cavity;

A plurality of soft-packed batteries, wherein a plurality of the soft-packed batteries are disposed in the accommodating cavity, and the positive and negative electrodes of each of the soft-packed batteries are electrically connected to the transfer circuit board;

A control board, the control board is provided outside the casing and is electrically connected to the transition circuit board.
The battery assembly according to claim 1, wherein the soft-pack battery is electrically connected to the transfer circuit board by soldering.
The battery assembly according to claim 1, wherein a plurality of the soft-pack batteries are arranged at a distance from each other in the receiving cavity.
The battery assembly according to claim 3, wherein an inner buffer member is sandwiched between two adjacent soft-packed batteries.
The battery module according to claim 4, wherein the inner buffer member is a foam member, an elastic metal member, a phase change material member, or a polymer material member.
The battery assembly according to claim 4, wherein each of the inner buffer members is respectively adhesively connected to the adjacent soft-pack battery.
The battery assembly according to claim 3, wherein the interval between two adjacent soft-packed batteries is 0.3-3 mm.
The battery assembly according to claim 1, wherein an outer buffer member is sandwiched between an inner surface of the case and the flexible battery.
The battery assembly according to claim 1, wherein the adapter circuit board is disposed adjacent to one end in a length direction of the casing and is parallel to both end surfaces in the length direction of the casing, and the control board is vertical On the switching circuit board, a length direction of each of the soft-pack batteries is parallel to a length direction of the casing, and the casing includes:

Upper shell

A lower case, the upper case and the lower case are arranged in a direction parallel to a length direction of the case, and the upper case and the lower case are detachably connected.
A vacuum cleaner, comprising the battery assembly according to any one of claims 1-9.
A battery assembly, comprising:

An insulating case, the receiving case is provided with an accommodation cavity;

A transfer circuit board, which is at least partially disposed in the receiving cavity;

A plurality of flat-type batteries, a plurality of the flat-type batteries are arranged in the accommodation cavity in parallel and the positive and negative electrodes of each of the flat-type batteries are electrically connected to the transfer circuit board;

A control board, which is at least partially disposed outside the insulating case and is electrically connected to the transition circuit board, wherein a plane on which the transition circuit board is located and a plane on which the control board is located are perpendicular to each other.
The battery assembly according to claim 11, further comprising a cable, wherein the adapter circuit board and the control board are electrically connected through the cable, and the cable is at least partially located on the control board And insulated housing.
The battery assembly according to claim 11, wherein the insulation case is provided with a plurality of fixing posts for fixing the control board, the fixing posts are integrally formed on the insulation case, and a plurality of the flat plates The batteries are arranged at intervals in the up-down direction or at intervals in the left-right direction or at intervals in the front-rear direction.
A charging control method, comprising:

Detecting the voltage of a single battery in the battery pack;

When the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack;

When the voltage reaches a preset second voltage threshold, the control consumer or the charger turns off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold.
A charging control system, comprising:

A battery pack for detecting a voltage of a single battery in the battery pack, inputting the voltage to a consumer, and controlling the charging in the battery pack when the voltage reaches a preset first voltage threshold The control module turns off charging of the battery pack;

The electrical appliance is configured to control the electrical appliance to turn off charging of the battery pack when the voltage reaches a preset second voltage threshold, and the second voltage threshold is equal to or greater than the first voltage threshold .
The charging control system according to claim 15, wherein the battery pack comprises:

A battery module comprising a plurality of said single cells connected in series;

A first signal transmission module;

A first charging control module;

A first battery management module, connected to each of the single-cell batteries, for detecting a voltage of the single-cell battery, and inputting the voltage to the consumer through the first signal transmission module, and when the When the voltage reaches the first voltage threshold, the first charging control module is controlled to turn off charging of the battery pack.
The charging control system according to claim 15, wherein the consumer includes:

A second signal transmission module;

A second charging control module;

A first micro-control unit, configured to receive the voltage through the second signal transmission module, and control the second charge control module to turn off the battery pack when the voltage reaches the second voltage threshold Charging.
A charging control system, comprising:

A battery pack for detecting a voltage of a single battery in the battery pack, and when the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack When the voltage reaches a preset second voltage threshold, inputting an off-charge control signal to the consumer, the second voltage threshold being equal to or greater than the first voltage threshold;

The electrical consumer is configured to control the electrical consumer to turn off the charging of the battery pack after receiving the shutdown charging control signal.
The charging control system according to claim 18, wherein the battery pack comprises:

A battery module comprising a plurality of said single cells connected in series;

A third signal transmission module;

A third charging control module;

The second battery management module is connected to each of the single-cell batteries and is configured to detect a voltage of the single-cell battery, and when the voltage reaches the first voltage threshold, control the third charging control module to turn off the pair of batteries. Charging the battery pack;

A third battery management module is connected to each of the single-cell batteries and is configured to detect a voltage of the single-cell battery, and when the voltage reaches the second voltage threshold, pass the off-charge control signal through the The third signal transmission module is input to the consumer.
The charging control system according to claim 18, wherein the consumers include:

A fourth signal transmission module;

A fourth charging control module;

A second micro-control unit, configured to receive the closed charge control signal through the fourth signal transmission module, and control the fourth charge control module to close the battery pack after receiving the closed charge control signal; Charging.
A charging control system, comprising:

A battery pack for detecting a voltage of a single battery in the battery pack, and when the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack When the voltage reaches a preset second voltage threshold, inputting an off-charge control signal to the consumer, the second voltage threshold being equal to or greater than the first voltage threshold;

The electrical consumer is configured to receive the off-charge control signal and input the off-charge control signal to a charger;

The charger is configured to control the charger to turn off charging of the battery pack after receiving the off-charge control signal.
The charging control system according to claim 21, wherein the battery pack comprises:

A battery module comprising a plurality of said single cells connected in series;

A fifth signal transmission module;

A fifth charging control module;

A fourth battery management module is connected to each of the single-cell batteries, and is configured to detect a voltage of the single-cell battery, and when the voltage reaches the first voltage threshold, control the fifth charging control module to turn off the pair of batteries. Charging the battery pack;

A fifth battery management module is connected to each of the single-cell batteries, and is configured to detect a voltage of the single-cell battery, and when the voltage reaches the second voltage threshold, pass the off-charge control signal through the A fifth signal transmission module is input to the consumer.
The charging control system according to claim 21, wherein the consumers include:

A sixth signal transmission module;

A seventh signal transmission module;

A third micro-control unit, configured to receive the off-charge control signal through the sixth signal transmission module, and transmit the off-charge control signal through the seventh signal after receiving the off-charge control signal The module is input to the charger.
The charging control system according to claim 21, wherein the charger comprises:

An eighth signal transmission module;

A sixth charging control module;

A fourth micro-control unit, configured to receive the closed-charge control signal through the eighth signal transmission module, and control the sixth charge-control module to close the battery pack after receiving the closed-charge control signal Charging.
A battery assembly, comprising:

A housing provided with a receiving cavity therein;

A switching circuit board, which is arranged in the receiving cavity;

A plurality of soft-packed batteries, wherein a plurality of the soft-packed batteries are disposed in the accommodating cavity, and the positive and negative electrodes of each of the soft-packed batteries are electrically connected to the transfer circuit board;

A control board, which is disposed outside the housing and is electrically connected to the transition circuit board, wherein the control method of the control board includes:

Detecting the voltage of a single battery in the battery pack;

When the voltage reaches a preset first voltage threshold, controlling a charging control module in the battery pack to turn off charging of the battery pack;

When the voltage reaches a preset second voltage threshold, the control consumer or the charger turns off charging of the battery pack, and the second voltage threshold is equal to or greater than the first voltage threshold.
A battery assembly, comprising:

A housing provided with a receiving cavity therein;

A switching circuit board, which is arranged in the receiving cavity;

A plurality of soft-packed batteries, wherein a plurality of the soft-packed batteries are disposed in the accommodating cavity, and the positive and negative electrodes of each of the soft-packed batteries are electrically connected to the transfer circuit board;

A control board, which is disposed outside the housing and is electrically connected to the switching circuit board, wherein the control board has a charging control system, and the charging control system includes:

A battery pack, configured to detect a voltage of a single soft-pack battery in the battery pack, and when the voltage reaches a preset first voltage threshold, control a charging control module in the battery pack to turn off the battery pack Charging, when the voltage reaches a preset second voltage threshold, inputting an off-charge control signal to the consumer, the second voltage threshold being equal to or greater than the first voltage threshold;

The electrical consumer is configured to receive the off-charge control signal and input the off-charge control signal to a charger;

The charger is configured to control the charger to turn off charging of the battery pack after receiving the off-charge control signal.