CN218919168U - Battery pack, power supply system and tool system - Google Patents

Abstract

The utility model discloses a battery pack, a power supply system and a tool system, wherein the battery pack comprises a battery pack shell, a battery module and a power supply system, wherein the battery pack shell comprises a first shell and a second shell, the first shell is fixedly connected with the second shell to form a containing cavity, a battery module and a circuit board are arranged in the containing cavity, and the circuit board is electrically connected with the battery module; the inserting part is arranged on the top surface of the shell; the first power supply terminal is arranged on the insertion end of the plug-in part and is electrically connected with the first circuit board; the first Type-C interface is arranged on the insertion end of the plug-in part and is electrically connected with the circuit board; the battery pack can be inserted into a battery plug-in port of the electric tool through the plug-in part and discharges to the electric tool through the first power supply terminal or the first Type-C interface. The battery pack of the utility model can discharge the electric tool with the Type-C interface or the power supply terminal through the Type-C interface or the power supply terminal.

Description

Battery pack, power supply system and tool system

technical field

The utility model relates to the technical field of battery packs, in particular to a battery pack, a power supply system and a tool system.

Background technique

Garden tools are maintenance equipment for human greening and landscape. They are mechanized tools represented by the maintenance of lawns, hedges, protection of flowers and trees, and the replacement of most manual labor.

In recent years, with the development of battery material technology, the application range of lithium batteries has been greatly improved. At present, electric tools and garden tools on the market have been used in large quantities. The application method is to supply power to the corresponding garden tools with copper tube connection terminals or plug-in terminals. The existing discharge interface and function are single, and the input and output voltages are single. The compatibility of input devices is poor, the scope of application is small, and it is inconvenient for users to use.

In view of the above problems, it is necessary to provide a battery pack, a power supply system and a tool system to solve the above problems.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a battery pack, a power supply system and a tool system, which are used to solve the problems in the prior art that the discharge interface and function are relatively single, and the input and output voltages are single, resulting in The matching with the access device is poor, the scope of application is small, and it is inconvenient for users to use.

In order to achieve the above purpose and other related purposes, the utility model provides a battery pack, which includes:

The battery pack casing includes a first casing and a second casing, the first casing is fixedly connected to the second casing and forms a storage cavity, and the cell assembly and the circuit board are arranged in the storage cavity , an electrical connection between the circuit board and the cell assembly;

The socket part is arranged on the top surface of the housing;

The first power supply terminal is arranged on the insertion end of the plug-in part, and the first power supply terminal is electrically connected to the circuit board;

The first Type-C interface is arranged on the insertion end of the socket part and is electrically connected to the circuit board;

Wherein, the battery pack can be inserted into the battery socket of the electric tool through the socket part, and discharge to the electric tool through the first power supply terminal or the first Type-C port.

In an embodiment of the present utility model, slide rails are provided on both sides of the insertion part.

In an embodiment of the present invention, a limiting member is provided on the top of the battery pack, and the limiting member is located on a side of the insertion portion away from the insertion end, and the limiting member includes a limiting main body and a The integrally formed limiting protrusions and limiting pressing parts are arranged at both ends of the limiting main body.

In an embodiment of the present invention, the top of the battery pack is also provided with a limit installation groove for installing the limit member and an installation groove cover for covering the limit installation groove. The slot cover is provided with a first opening and a second opening for the protruding of the position-limiting protrusion and the position-limiting pressing part.

In an embodiment of the present utility model, an elastic element is arranged between the limiting member and the bottom of the limiting installation groove.

In one embodiment of the present utility model, a limit installation protrusion is provided in the middle of the limit installation groove, and a limit through hole matching the limit installation protrusion is opened in the middle of the limit main body. , the limiting member is sheathed on the limiting installation bump through the limiting through hole.

In an embodiment of the present invention, the first power supply terminal includes a first P+ terminal, a first P− terminal and a first COM terminal.

In an embodiment of the present invention, the first Type-C interface is located between the first power supply terminals.

In order to achieve the above purpose and other related purposes, the utility model provides a power supply system, including mutually adapted electric tools and battery packs;

The battery pack includes a battery pack housing, a plug-in portion, a first power supply terminal and a first Type-C interface, the battery pack housing includes a first housing and a second housing, the first housing and the The second housing is fixedly connected to form a storage cavity, the storage cavity is provided with a cell assembly and a circuit board, the circuit board is electrically connected to the cell assembly, and the plug-in part is disposed on On the top surface of the housing, the first power supply terminal is arranged on the insertion end of the socket part and is electrically connected to the circuit board, and the first Type-C interface is arranged on the socket part On the insertion end, the first Type-C interface is electrically connected to the circuit board;

The electric tool has a battery socket and a second Type-C interface or a second power supply terminal arranged at the bottom of the battery socket;

Wherein, when the battery pack is inserted into the battery socket through the socket, the battery pack discharges to the electric tool through the first power supply terminal or the first Type-C interface. .

In an embodiment of the present utility model, the electric tools include lawn trimmers, pruners, hair dryers, chain saws, lawn pushers, cleaning machines, vacuum cleaners, electric drills, electric hammers, riding lawn mowers, smart mowers, etc. One of the lawn machines and intelligent cleaning equipment.

In an embodiment of the present invention, guide grooves are provided on the side walls of the battery socket, and slide rails matching the guide grooves are provided on both sides of the insertion part.

In one embodiment of the present utility model, the top of the battery pack is provided with a limiting member, and the limiting member includes a limiting main body and integrally formed limiting protrusions arranged at both ends of the limiting main body. and a position-limiting pressing part; the end of the bottom of the battery socket close to the insertion end is provided with a position-limiting slot matching the position-limiting protruding part.

In an embodiment of the present invention, the top of the battery pack is provided with a limit installation groove for installing the limit member and an installation groove cover for covering the limit installation groove, and the installation groove The cover is provided with a first opening and a second opening for protruding of the position-limiting protrusion and the position-limiting pressing part.

In an embodiment of the present utility model, an elastic element is arranged between the limiting member and the bottom of the limiting installation groove.

In one embodiment of the present utility model, a limit installation protrusion is provided in the middle of the limit installation groove, and a limit through hole matching the limit installation protrusion is opened in the middle of the limit main body. , the limiting member is sheathed on the limiting installation bump through the limiting through hole.

In an embodiment of the present invention, the first power supply terminal includes a first P+ terminal, a first P- terminal, and a first COM terminal; the second power supply terminal includes terminals connected to the first power supply terminal Matching second P+ terminal, second P- terminal and second COM terminal.

In an embodiment of the present invention, the first Type-C interface is located between the first power supply terminals.

In order to achieve the above purpose and other related purposes, the utility model also provides a tool system, which includes:

The battery pack includes a battery pack housing, a plug-in portion, a first power supply terminal and a first Type-C interface, the battery pack housing includes a first housing and a second housing, the first housing and the The second housing is fixedly connected to form a storage cavity, the storage cavity is provided with a cell assembly and a circuit board, the circuit board is electrically connected to the cell assembly, and the plug-in part is disposed on On the top surface of the housing, the first power supply terminal is arranged on the insertion end of the socket part and is electrically connected to the circuit board, and the first Type-C interface is arranged on the socket part On the insertion end, the first Type-C interface is electrically connected to the circuit board;

A first electric tool, the first electric tool has a first rated voltage, the first electric tool has a first battery socket and a second power supply terminal provided at the bottom end of the first battery socket;

A second electric tool, the second electric tool has a second rated voltage, the second electric tool has a second battery socket and a second Type-C port provided at the bottom of the second battery socket;

Wherein, when the battery pack is inserted into the first battery socket through the socket, the first power supply terminal is connected to the second power supply terminal, and the battery pack is connected to the second power supply terminal through the first battery pack. The power supply terminal discharges electricity to the first electric tool;

When the battery pack is inserted into the second battery socket through the socket, the second Type-C interface is connected to the first Type-C interface, and the battery pack can be connected through the The first Type-C interface discharges the second electric tool.

In an embodiment of the present invention, the first rated voltage is the same as the second rated voltage.

In an embodiment of the present invention, the first rated voltage is different from the second rated voltage.

In an embodiment of the present invention, the shape of the first battery socket and the second battery socket are substantially the same.

In an embodiment of the present utility model, the tool system further includes a third electric tool, the third electric tool has a third rated voltage, the third electric tool has a third battery socket and is arranged on the The third Type-C interface at the bottom of the third battery socket; when the battery pack is inserted into the third battery socket through the socket, the third Type-C interface is connected to the third battery socket. The first Type-C interface is connected, and the battery pack can discharge the third electric tool through the first Type-C interface.

In an embodiment of the present invention, the second rated voltage is different from the third rated voltage.

The battery pack of the utility model can be compatible and matched with electric tools with a Type-C interface or a power supply terminal for discharge, and has a wide application range.

The battery pack of the utility model can discharge electric tools with different rated voltages through the Type-C interface, so that the electric tools with different rated voltages can be adapted.

Description of drawings

FIG. 1 is a schematic structural diagram of a battery pack of the present invention.

FIG. 2 is a schematic exploded view of the battery pack of the present invention.

Fig. 3 is a schematic structural diagram of an electric tool and a battery pack of the first power supply system of the present invention.

Fig. 4 is a schematic structural diagram of the electric tool of the first power supply system of the present invention.

Fig. 5 is a circuit block diagram of the first power supply system of the present invention.

Fig. 6 is a schematic structural diagram of an electric tool and a battery pack of the second power supply system of the present invention.

Fig. 7 is a schematic structural diagram of an electric tool of the second power supply system of the present invention.

Fig. 8 is a circuit block diagram of the second power supply system of the present invention.

Fig. 9 is a flow chart showing the battery pack activation of the present invention.

FIG. 10 shows a flow chart of the terminal discharge mode of the battery pack of the present invention.

Fig. 11 is a flow chart showing the discharge logic of the battery pack of the present invention through the Type-C interface.

Fig. 12 shows the flow chart of the battery pack Type-C discharge mode of the present invention.

Label description

Battery pack 100; upper casing 11; activation unit 110; socket part 1101; slide rail 1102; limit piece 111; limit pressing part 1111; limit protrusion 1112; limit through hole 1115; limit installation groove 112; mounting slot cover 1121; first opening 1122; second opening 1123; limit mounting bump 1124; Type-C mounting hole 113; lower case 12; cell assembly 120; first Type-C interface 122; circuit Board 13; terminal mounting hole 131; first power supply terminal 132; cell support 14; charge and discharge protection unit 151; Type-C charge and discharge protection unit 152; full bridge drive unit 1601; full bridge power unit 1602; first detection unit 1701; second detection unit 1702; main control unit 1801; auxiliary control unit 1802; COM communication unit 191; Type-C communication processing unit 192; electric tools 30, 30'; tool body 31; handle 32; base 33; Interface 331 ; guide slot 332 ; limit card slot 333 ; second Type-C interface 34 ; second power supply terminal 35 .

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

See Figure 1-12. It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

As shown in FIGS. 1 and 2 , this embodiment introduces a battery pack 100 . The battery pack 100 includes a battery pack case, a plugging portion 1101 , a first power supply terminal 132 and a first Type-C interface 122 . The cell assembly 120 and the circuit board 13 are installed in the battery pack casing, the circuit board 13 is electrically connected to the cell assembly 120, the plug-in part 1101 is arranged on the top surface of the battery pack casing; the first power supply terminal 132 is arranged on On the insertion end of the socket part 1101, the first power supply terminal 132 is electrically connected to the circuit board 13; the first Type-C interface 122 is arranged on the insertion end of the socket part 1101, and the first Type-C interface 122 is located on the first Between the power supply terminals 132, and electrically connected with the circuit board 13; wherein, the battery pack 100 can be inserted into the battery socket 331 of the electric tool 30 through the plug-in part 1101, and through the first power supply terminal 132 or the first Type -C interface 122 discharges to the electric tool 30, that is, the battery pack 100 of this embodiment is compatible with the electric tool 30 with a Type-C interface (defined as the second Type-C interface 34) as shown in Figure 3-5 Discharging and discharging of an electric tool 30 ′ with a power supply terminal (defined as the second power supply terminal 35 ) as shown in FIGS. 6-8 . It can be understood that, in other embodiments, the first Type-C interface 122 may also be disposed on one side of the first power supply terminal 132 .

As shown in Fig. 3-8, the mutually adapted electric tools 30 and 30' and the battery pack 100 together form a power supply system, the battery pack 100 is used to supply power to the electric tools 30 and 30', and the battery pack 100 is provided with discharge The first Type-C interface 122 and the first power supply terminal 132 can be divided into a first power supply system as shown in FIG. 3 and a second power supply system as shown in FIG. 6 according to different power supply systems of ports on the power tool. As shown in FIG. 3, in the first power supply system, the electric tool 30 is provided with a second Type-C interface 34 corresponding to the first Type-C interface 122 of the battery pack 100, and the battery pack 100 can pass through the first Type-C interface 122. The C interface 122 discharges the power tool 30 with the second Type-C interface 34 . As shown in Figure 6, in the second power supply system, the electric tool 30' is provided with a second power supply terminal 35 corresponding to the first power supply terminal 132 of the battery pack 100, and the battery pack 100 can have The power tool 30' of the second power supply terminal 35 is discharged. Power tools 30 or 30' include, but are not limited to, lawn trimmers, hair dryers, trimmers, chain saws, lawn pushers, washers, vacuum cleaners, smart lawn mowers, smart cleaning devices, and ride-on lawn mowers.

In this embodiment, the above-mentioned first Type-C interface 122 is an electrical connector capable of discharging, and the output voltage of the first Type-C interface 122 is 5-20V, preferably 5V, 9V, 12V, 15V , 20V; output current is 1-5A, preferably 1A, 2A, 3A, 4A, 5A; output power is 15-100W, preferably 15W, 18W, 30W, 45W, 60W, 100W. It can be understood that, in other embodiments, the output voltage of the first Type-C interface 122 can also be any value less than 5V or greater than 20V, the output current can also be any value less than 1A or greater than 5A, and the output power can also be It can be any value less than 15W and greater than 100W.

1-8, in this embodiment, the electric tool 30 or 30' includes a tool body 31 with functional modules, a handle 32 disposed on one side of the tool body 31, a 31, the base 33 at one end of the base 33, the battery socket 331 for inserting the battery pack 100 provided on the side of the base 33 away from the handle 32, and the second Type 331 provided at the bottom of the battery socket 331 (the end away from the insertion end). - the C interface 34 , the base 33 is detachably connected to the battery pack 100 .

As shown in Figures 1-8, in this embodiment, the battery pack 100 includes a cell assembly 120 and a circuit board 13 housed in the battery pack casing, the cell assembly 120 includes a plurality of cells, and the cells are respectively Installed in the cell support 14, the cell support 14 is located in the battery pack 100 shell, multiple cells can be connected in series and parallel through the electrode sheets, the cell assembly 120 is electrically connected to the circuit board 13, each cell combination Afterwards, it is used to store electric energy, and each cell can discharge to the electric tool 30 with the second Type-C interface 34 through the first Type-C interface 122 or to the electric tool with the second power supply terminal 35 through the first power supply terminal 132 30' discharge.

As shown in FIGS. 1 and 2 , in this embodiment, the top of the battery pack 100 is provided with a socket 1101 that matches the battery socket 331 , and the socket 1101 of the battery pack 100 connects from the battery socket 331 . One end of the opening (that is, the insertion end) is inserted into the battery socket 331, and the battery socket 331 at least partially wraps the socket portion 1101, preventing the socket portion 1101 of the battery pack 100 from moving out of the opening of the battery socket 331. Pull out the battery socket 331 to ensure the stability of the battery pack 100 . Specifically, the battery pack casing includes an upper casing 11 (first casing) and a lower casing 12 (second casing), the upper casing 11 is fixedly connected to the lower casing 12, and the cell assembly 120 and the circuit board 13 It is accommodated in the receiving cavity formed by assembling the upper casing 11 and the lower casing 12. The insertion part 1101 is arranged on the top surface of the upper casing 11, and slide rails 1102 are arranged on both sides of the insertion part 1101. The first Type- The C interface 122 and the first power supply terminal 132 are respectively arranged in the Type-C installation hole 113 and the terminal installation hole 131 of the insertion end of the plug-in part 1101, and are located between the slide rails 1102 on both sides of the plug-in part 1101, and the first The Type-C interface 122 is located between the first power supply terminals 132 . As shown in FIG. 3, when the electric tool 30 with the second Type-C interface 34 is connected to the battery pack 100 through the slide rail 1102, the first Type-C interface 122 is electrically connected to the second Type-C interface 34 of the electric tool 30. The battery pack 100 can discharge the electric tool 30 through the first Type-C interface 122, so as to supply power to the functional modules of the electric tool 30 to realize the corresponding functions of the electric tool 30. As shown in FIG. 6, when the electric tool 30' having the second power supply terminal 35 is connected to the battery pack 100 through the slide rail 1102, the first power supply terminal 132 is electrically connected to the second power supply terminal 35 of the electric tool 30', and the battery The package 100 can discharge the power tool 30 ′ through the first power supply terminal 132 , so as to supply power to the functional modules of the power tool 30 ′ to realize corresponding functions of the power tool 30 .

It should be understood that the above-mentioned first Type-C interface 122 and the second Type-C interface 34 are USB standard interfaces, and the interface type is a double-sided model that can be adapted to be inserted forward and backward, and supports the USB PD fast charging protocol (USB Power Delivery Specification, USB fast charging standard), the pins of the first Type-C interface 122 and the second Type-C interface 34 can include VBUS, CC, D+, D-, and GND.

It should be understood that the above-mentioned first power supply terminal 132 and second power supply terminal 35 can be plug-in ports for power transmission commonly used in garden tools, and there are various models to choose from. In this embodiment, the above-mentioned first power supply terminal 132 may include a first P+ terminal, a first P- terminal, and a first COM terminal, and the above-mentioned second power supply terminal 35 may include a second P+ terminal, a second P- terminal, and a second P+ terminal that match each terminal of the first power supply terminal. Two COM terminals.

1-8, in this embodiment, a guide groove 332 is provided on the side wall of the battery socket 331 of the above-mentioned base 33, and the guide groove 322 can be, for example, an L-shaped groove. The side wall of the part 1101 is provided with a slide rail 1102 matching the guide groove 332. When the battery pack 100 is inserted into the base 33, the slide rail 1102 is inserted into the guide groove 332, which can prevent the battery pack 100 from coming out of the battery socket in the non-insertion direction. Interface 331.

Please refer to Fig. 1-8, the top of the above-mentioned battery pack 100 is provided with a limiting member 111, the limiting member 111 includes a limiting main body and integrally formed limiting protrusions 1112 and limiting Bit pressing part 1111. A limit card slot 333 corresponding to the limit protrusion 1112 of the limit member 111 is provided on the bottom of the battery socket 331 of the base 33 near the insertion end. When the battery pack 100 is plugged into the base 33, the limiting protrusion 1112 extends into the limiting slot 333, and the limiting protrusion 1112 matches the limiting slot 333 to limit the battery pack 100 from coming out along the insertion direction. The function of the battery socket 331 of the base 33 .

Please refer to Figures 1-8, in this embodiment, the top of the above-mentioned battery pack 100 is provided with a limit installation groove 112 and an installation groove cover 1121 for covering the limit installation groove 112, and the limit installation groove 112 is arranged on the plug Connect the end of the boss away from the insertion end. The limit installation groove 112 is used to install the limit member 111, the installation groove cover 1121 is covered on the limit installation groove 112, and the installation groove cover 1121 is provided with a second An opening 1122 and a second opening 1123, the position-limiting protrusion 1112 and the position-limiting pressing part 1111 are exposed from the first opening 1122 and the second opening 1123, and the position-limiting protrusion 1112 needs to be removed after the battery pack 100 is removed When it is inserted into the base 33, it can protrude from the surface of the installation slot cover 1121 under the action of the elastic element.

Please refer to Fig. 1-8, in this embodiment, the middle part of the above-mentioned limit installation groove 112 is provided with a limit installation projection 1124, and the middle part of the limit main part of the limit member 111 is provided with a limit installation projection. 1124 cooperates with the limiting through hole 1115, and the limiting member 111 is sleeved on the limiting installation bump 1124 through the limiting through hole 1115, and the limiting installation bump 1124 can play a certain guiding role. An elastic element (not shown) is also provided between the limiting member 111 and the bottom surface of the limiting installation groove 112, and the elastic element can reset the limiting member 111 when the battery pack 100 is removed or plugged into the base 33, thereby Make the position-limiting protrusion 1112 and the position-limiting pressing part 1111 protrude from the first opening 1122 and the second opening 1123 respectively, and when the battery pack 100 is inserted into the base 33, the position-limiting protrusion of the position-limiting member 111 1112 is inserted into the limiting slot 333 of the base 33 to play a limiting role, preventing the battery pack 100 from sliding out of the base 33 along the first direction, and when releasing the battery pack 100, only need to press down the limiting pressing part 1111, The limit protrusion 1112 moves downward synchronously with the limit pressing part 1111, and retracts the corresponding opening of the installation slot cover 1121, so that the limit protrusion 1112 escapes from the limit card slot 333, and at this time it can be inserted along the Remove the battery pack 100 from the base 33 in the opposite direction. As an example, two elastic elements may be included, one is arranged between the limit protrusion 1112 and the bottom surface of the limit installation groove 112, and the other is arranged between the limit pressing portion 1111 and the bottom surface of the limit installation groove 112. , and a structure for installing the elastic element is provided at the position corresponding to the elastic element on the position-limiting protrusion 1112 , the bottom surface of the position-limiting installation groove 112 and the position-limiting pressing portion 1111 .

5 and 8 show the circuit block diagrams of two power supply systems of this embodiment, the circuit block diagrams of the two power supply systems all include the discharge control circuit of the battery pack 100, and the discharge control circuit can be integrated into the circuit board 13 of the battery pack 100 superior. The discharge control circuit is connected in series between the first Type-C interface 122 and the cell assembly 120 of the battery pack 100, and the discharge control circuit is also connected in series between the first power supply terminal 132 and the cell assembly 120 of the battery pack 100. , the discharge control circuit is used to control the electric core assembly 120 to discharge to the electric tool 30 having the second Type-C interface 34 or the second power supply terminal 35 through the first Type-C interface 122 or the first power supply terminal 132 . And when the battery pack 100 discharges to the electric tool 30 with the second Type-C interface 34 through the first Type-C interface 122, the discharge control circuit can automatically adapt the rated voltage of the electric tool 30, that is, the battery of this embodiment The battery pack 100 can be adapted to electric tools 30 with different rated voltages. The battery pack 100 and multiple electric tools 30 with Type-C interfaces and different rated voltages together form a tool system. The tool system also includes an electric power tool with a second power supply terminal 35. The rated voltages of the tool 30', the power tool 30' and the power tool 30 may be the same or different. It can be understood that the discharge control circuit can also be used as the charge control circuit of the battery pack 100 .

Please refer to Figures 5 and 8, the above discharge control circuit includes a first detection unit 1701 (detection unit 1), a second detection unit 1702 (detection unit 2), a main control unit 1801, an auxiliary control unit 1802, and a full bridge power unit 1602 , full bridge drive unit 1601, Type-C charge and discharge protection unit 152 (Type-C protection unit), Type-C communication processing unit 192 (Type-C communication unit), COM communication unit 191, charge and discharge protection unit 151, activation Unit 110 and keys. A first full-bridge drive unit 1601 and a first Type-C charge and discharge protection unit 152 are sequentially connected in series between the cell assembly 120 and the first Type-C interface 122, and the cell assembly 120 and the first power supply terminal 132 are connected in series. The charging and discharging protection unit 151, the main control unit 1801 are respectively connected with the auxiliary control unit 1802, the COM communication unit 191, the first detection unit 1701, the activation unit 110, the charging and discharging protection unit 151 and the Type-C communication processing unit 192, and the auxiliary control unit 1802 is also connected to the full-bridge drive unit 1601, the Type-C communication processing unit 192, the Type-C charge and discharge protection unit 152, and the second detection unit 1702, and the Type-C communication processing unit 192 is also connected to the activation unit 110 and the first detection unit 1702 respectively. The Type-C interface 122 is connected, the COM communication unit 191 is also connected to the first power supply terminal 132 , and the button is connected to the activation unit 110 .

Specifically, the first detection unit 1701 is configured to obtain battery parameters of the battery cells in real time, and transmit the detection results to the main control unit 1801, wherein the battery parameters include the battery cell voltage, current and temperature in the battery cell assembly 120; The second detection unit 1702 is used to detect the circuit parameters of the Type-C circuit (the relevant circuit from the first Type-C interface 122 to the battery inside the battery pack), and transmit the detection result to the auxiliary control unit 1802, wherein, Type-C The loop parameters of the C loop include the input/output voltage of the Type-C loop, the loop current, and the temperature of the power device; the main control unit 1801 is used to receive the data information of the first detection unit 1701 and the abnormal alarm information of the auxiliary control unit 1802, After the analysis, the terminal charge and discharge protection command, the auxiliary control unit 1802 protection command and the auxiliary control unit 1802 power-off command will be issued; the auxiliary control unit 1802 is used to receive the data information of the second detection unit 1702 and the relevant commands of the main control unit 1801 After the analysis, the Type-C loop normal operation command, the Type-C loop charge and discharge protection command, and the power-off and sleep operation can be issued; the full-bridge power unit 1602 and the full-bridge drive unit 1601 together form the lifting of the Type-C loop voltage module, the auxiliary control unit 1802 communicates with the external electric tool 30 of the first Type-C interface 122 through the CC signal, and determines the input/output voltage of the current circuit. After determination, the voltage regulation work is completed by the full bridge drive unit 1601 The Type-C charge and discharge protection unit 152 is used to receive protection instructions from the auxiliary control unit 1802 to complete the charge and discharge protection action of the Type-C loop; the charge and discharge protection unit 151 is used to receive protection instructions from the main control unit 1801, Complete the charging and discharging protection action of the battery pack circuit; the activation unit 110 is used to receive the activation signal from the outside, including COM signal, KEY signal (key) and CC signal, and complete the power-on action of the main control unit 1801, the main control unit After 1801 completes the power-on action, switch the CC signal from the activation circuit to the communication circuit with the auxiliary control unit 1802 at the same time, and the auxiliary control unit 1802 starts to communicate with the peripherals normally.

It should be noted that the main control unit 1801 and the auxiliary control unit 1802 in this embodiment are the central processing units (Central Processing Unit, CPU) of the microcomputer digital display sensor processor system, and can be configured with corresponding operating systems and control interfaces. etc. Specifically, it can be a digital logic processor that can be used for automatic control, such as a single-chip microcomputer, DSP (Digital Signal Processing, digital signal processing), ARM (Advanced RISC Machines, ARM processor), and can load control instructions into the memory at any time For storage and execution, at the same time, CPU instructions and data memory, input and output units, power modules, digital simulation and other units can be built in, which can be set according to actual usage conditions, and this solution does not limit this. Before the battery pack 100 is charged or discharged, the activation of the battery pack needs to be completed first. FIG. 9 shows a flowchart for activating the battery pack 100 . As shown in FIG. 9 , the battery pack 100 can activate the main control unit 1801 of the battery pack 100 through a button (KEY signal), a COM signal of a charger or an electric tool 30, and a CC signal of the first Type-C interface; After the control unit 1801 is activated by the activation signal, it will complete the power-on initialization work, then self-check the battery status, and decide whether to turn on the Type-C circuit according to the self-test result; the battery pack 100 will power off the main control unit 1801 in case of abnormality , the battery pack 100 will enter the shutdown state, otherwise the initialization of the battery pack 100 will be completed, the main control unit 1801 will open the Type-C circuit, and set the status flag OVP of the battery pack 100 to a corresponding value according to the self-test result, wherein, Setting OVP to 10 indicates that the battery pack 100 is in a charge protection state and is only used for charging, and setting OVP to 11 indicates that the battery pack 100 is in a discharge protection state and is only used for discharging.

The battery pack 100 of this embodiment has two discharge modes, the first discharge mode is to realize discharge through the first power supply terminal 132 of the battery pack 100, and the second is to realize discharge through the first Type-C interface 122 of the battery pack 100 discharge. Each will be described below.

As shown in Figures 8-10, the battery pack 100 discharges to the electric tool with the second power supply terminal 35 through the first power supply terminal 132, and the battery pack and the tool are provided with a P+ terminal, a COM terminal, and a P- terminal, and one by one Correspondingly, discharge is realized through the matching of terminals and communication. Specifically, when the battery pack 100 is plugged into the electric tool 30, the battery pack 100 corresponds to the P+ terminal, the COM terminal, and the P- terminal on the electric tool 30, and the battery pack 100 can be activated through the above-mentioned activation method. 100 performs discharge handshake with the electric tool 30 , and if the handshake is successful, it enters the discharge mode and discharges through the first power supply terminal 132 .

As shown in Fig. 5, Fig. 9, Fig. 11 and Fig. 12, the battery pack 100 is discharged to the electric tool with the second Type-C interface 34 through the first Type-C interface 122: when the battery pack 100 is discharged through the Type-C interface When connected to the electric tool 30 with a Type-C interface, the Type-C interface will perform discharge protocol matching for discharge. Specifically, when the battery pack 100 is connected to the second Type-C interface 34 of the electric tool 30 through the first Type-C interface 122, the battery pack 100 is activated through the CC signal, and the main control unit 1801 completes power-on initialization, and the battery pack 100 and The electric tool 30 performs a discharge handshake, and if the handshake is successful, the electric tool 30 sends a discharge request signal, which includes the rated voltage of the electric tool 30; detects the working condition of the battery pack, and enters Type-C when the working condition of the battery pack 100 is idle mode discharge mode, and when the working condition of the battery pack 100 is the charging mode, the Type-C discharge mode is prohibited, and when the working condition of the battery pack 100 is that the battery pack 100 discharges through the first power supply terminal 132, it enters the first power supply Terminal 132 and Type-C dual discharge mode; when entering the Type-C discharge mode, the main control unit 1801 starts to detect the battery status, except for abnormal situations, the main control will open the Type-C circuit and set the value of OVP according to the battery pack status After the auxiliary control is powered on for self-calibration, after the auxiliary control is powered on, it will judge whether there is an electric tool 30 connected according to the signal of the Type-C port; when the auxiliary control unit 1802 determines that there is an electric tool 30 connected, the main control unit 1801 and the auxiliary Data interaction will be performed between the control units 1802, the auxiliary control unit 1802 tells the main control unit 1801 that there is an electric tool 30 connected, and the main control unit 1801 executes the discharge protection logic; during the entire Type-C discharge process, the main control unit 1801 will real-time Monitor the state of the battery and maintain communication with the auxiliary control unit 1802 to ensure that the discharge process is in a controllable state.

As shown in FIG. 12 , the control process of the entire Type-C discharge process is as follows: when the first Type-C interface 122 is used to discharge the battery pack 100, the auxiliary control unit 1802 will send a PWM control signal to the full bridge drive unit 1601, The full-bridge drive unit 1601 provides a discharge voltage matching the rated voltage of the electric tool 30 according to the PWM signal; the auxiliary control unit 1802 monitors the discharge voltage V _BUS , V _IN and the discharge current in real time; when the discharge voltage and discharge current are abnormal, the auxiliary control unit 1802 1802 real-time adjustment, after multiple adjustments (can be determined according to the actual situation, such as 5 times), it will judge whether there is still an abnormality, if abnormal, stop discharging, otherwise normal discharge; in the normal discharge mode of the Type-C port, the main control The unit 1801 monitors the battery status in real time, including voltage, current and cell temperature, and stops discharging when the voltage or temperature of a single cell is abnormal; % (or other suitable values), stop discharging.

To sum up, the battery pack of the present invention is compatible with electric tools with Type-C interface or power supply terminals for discharge, and has a wide range of applications. The battery pack of the present invention can discharge electric tools with different rated voltages through the Type-C interface, so that the electric tools with different rated voltages can be adapted.

In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. However, one skilled in the art will recognize that embodiments of the invention may be practiced without one or more of the specific details, or with other devices, systems, assemblies, methods, components, materials, parts, and the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the embodiments of the invention.

It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or integrated manner, or even removed as inoperable in certain circumstances or as may be useful depending on a particular application. Provided.

In addition, unless otherwise expressly indicated, any marking arrows in the drawings should be regarded as illustrative only, and not limiting. In addition, as used herein, the term "or" is generally intended to mean "and/or" unless stated otherwise. Combinations of parts or steps are also considered to be indicated where terms are foreseen because it is unclear to provide the ability to separate or combine.

The above description of illustrated embodiments of the invention, including what is described in the Abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of the invention, and examples for the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the invention, as those skilled in the art will recognize and appreciate. of. As noted, these modifications can be made to the invention in light of the above description of described embodiments of the invention and will be within the spirit and scope of the invention.

Systems and methods have generally been described herein in detail to facilitate an understanding of the invention. Additionally, various specific details have been given to provide a general understanding of embodiments of the invention. However, one skilled in the relevant art will recognize that the embodiments of the invention may be practiced without one or more of the specific details, or with other devices, systems, assemblies, methods, components, materials, sections, etc. practice. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the invention.

Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, changes and substitutions are intended to be within the foregoing disclosure, and it should be understood that in some cases, these can be achieved without departing from the scope and scope of the invention as presented. Some features of the invention will be employed without a corresponding use of other features within the spirit of the present invention. Accordingly, many modifications may be made to adapt a particular situation or material to the true scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out the invention, but the invention will include those falling within the scope of the appended claims Any and all examples and equivalents within . Accordingly, the scope of the invention is to be determined only by the appended claims.

Claims (15)

1. A battery pack, characterized in that the battery pack comprises: The battery pack casing includes a first casing and a second casing, the first casing is fixedly connected to the second casing and forms a storage cavity, and the cell assembly and the circuit board are arranged in the storage cavity , an electrical connection between the circuit board and the cell assembly; The socket part is arranged on the top surface of the housing; The first power supply terminal is arranged on the insertion end of the plug-in part, and the first power supply terminal is electrically connected to the circuit board; The first Type-C interface is arranged on the insertion end of the socket part and is electrically connected to the circuit board; Wherein, the battery pack can be inserted into the battery socket of the electric tool through the socket part, and discharge to the electric tool through the first power supply terminal or the first Type-C port. 2. The battery pack according to claim 1, wherein slide rails are provided on both sides of the plug-in portion. 3. The battery pack according to claim 1, wherein a limiting member is provided on the top of the battery pack, and the limiting member is located on a side of the plug-in portion away from the insertion end, and the limiting member It includes a position-limiting main body, and integrally-formed position-limiting protrusions and position-limiting pressing parts arranged at both ends of the position-limiting main body. 4. The battery pack according to claim 1, wherein the first power supply terminal comprises a first P+ terminal, a first P- terminal and a first COM terminal. 5. The battery pack according to claim 1, wherein the first Type-C interface is located between the first power supply terminals. 6. A power supply system, characterized in that it includes mutually adapted electric tools and battery packs; The battery pack includes a battery pack case, a socket, a first power supply terminal and a first Type-C interface, the battery pack case includes a first case and a second case, and the first case and the The second housing is fixedly connected to form a storage cavity, the storage cavity is provided with a cell assembly and a circuit board, the circuit board is electrically connected to the cell assembly, and the plug-in part is disposed on On the top surface of the housing, the first power supply terminal is arranged on the insertion end of the socket part and is electrically connected to the circuit board, and the first Type-C interface is arranged on the socket part On the insertion end, the first Type-C interface is electrically connected to the circuit board; The electric tool has a battery socket and a second Type-C interface or a second power supply terminal arranged at the bottom of the battery socket; Wherein, when the battery pack is inserted into the battery socket through the socket, the battery pack discharges to the electric tool through the first power supply terminal or the first Type-C interface. . 7. The power supply system according to claim 6, wherein the electric tools include lawn trimmers, pruners, hair dryers, chain saws, lawn pushers, electric drills, electric hammers, intelligent lawn mowers, intelligent cleaning One of the devices. 8. The power supply system according to claim 6, wherein guide grooves are provided on the side wall of the battery socket, and slide rails matching the guide grooves are provided on both sides of the socket. . 9. The power supply system according to claim 6, wherein the first power supply terminal comprises a first P+ terminal, a first P- terminal and a first COM terminal; the second power supply terminal comprises a Each terminal of a power supply terminal matches the second P+ terminal, the second P- terminal and the second COM terminal. 10. A tool system, characterized in that the tool system comprises: The battery pack includes a battery pack housing, a plug-in portion, a first power supply terminal and a first Type-C interface, the battery pack housing includes a first housing and a second housing, the first housing and the The second housing is fixedly connected to form a storage cavity, the storage cavity is provided with a cell assembly and a circuit board, the circuit board is electrically connected to the cell assembly, and the plug-in part is disposed on On the top surface of the housing, the first power supply terminal is arranged on the insertion end of the socket part and is electrically connected to the circuit board, and the first Type-C interface is arranged on the socket part On the insertion end, the first Type-C interface is electrically connected to the circuit board; A first electric tool, the first electric tool has a first rated voltage, the first electric tool has a first battery socket and a second power supply terminal provided at the bottom end of the first battery socket; A second electric tool, the second electric tool has a second rated voltage, the second electric tool has a second battery socket and a second Type-C port provided at the bottom of the second battery socket; Wherein, when the battery pack is inserted into the first battery socket through the socket, the first power supply terminal is connected to the second power supply terminal, and the battery pack is connected to the second power supply terminal through the first battery pack. The power supply terminal discharges electricity to the first electric tool; When the battery pack is inserted into the second battery socket through the socket, the second Type-C interface is connected to the first Type-C interface, and the battery pack can be connected through the The first Type-C interface discharges the second electric tool. 11. The tool system of claim 10, wherein the first voltage rating and the second voltage rating are the same. 12. The tool system of claim 10, wherein the first voltage rating and the second voltage rating are different. 13. The tool system according to claim 10, wherein the first battery socket and the second battery socket have substantially the same shape. 14. The tool system according to claim 10, wherein the tool system further comprises a third power tool, the third power tool has a third rated voltage, the third power tool has a third battery plug interface and a third Type-C interface provided at the bottom of the third battery socket; when the battery pack is inserted into the third battery socket through the socket, the third Type-C The -C interface is connected to the first Type-C interface, and the battery pack can discharge the third electric tool through the first Type-C interface. 15. The tool system of claim 14, wherein the second voltage rating and the third voltage rating are different.

Images