CN114336848A - Power supply system and electric tool system - Google Patents

Abstract

The invention relates to the field of power supply systems for electric tools, in particular to a power supply system and an electric tool system. The power supply system of the present invention includes a battery pack and an adapter. The adapter includes an input end, a first adaptation interface, a second adaptation interface, a first switching structure and a second switching structure. An adapter interface is configured to cooperate with the first tool interface of the first power tool, the second adapter interface is configured to cooperate with the second tool interface of the second power tool, the first switching structure is electrically connected to the input end, and can be Switch between the first state and the second state; the second switching structure is electrically connected to the input terminal and can be switched between the first state and the second state; the battery pack is adjusted through the first switching structure and the second switching structure The connection method enables the power supply system to output two different working voltages. The power supply system of the present invention can be applied to electric tools with different working voltages, thereby saving cost.

Description

A power supply system and power tool system

technical field

The invention relates to the field of electric tools, in particular to a power supply system and an electric tool system.

Background technique

Most of the existing power supply components adopt a fixed power supply mode, that is, the connection mode between the battery pack and the battery pack is fixed. In this case, the power supply component can only provide one output voltage. Therefore, electrical devices or equipment such as garden tools, power tools and home appliances need to be equipped with separate power supplies. If you encounter power tools that need to work in different voltage modes, you need to provide two or more sets of power supplies, which is not only time-consuming and labor-intensive. , but also caused great inconvenience to the user.

SUMMARY OF THE INVENTION

In view of the above disadvantages of the prior art, the present invention provides a power supply system and a power tool system, so as to realize that a group of power supply systems provide different output voltages.

In order to achieve the above object and other related objects, the present invention provides a power supply system, including a battery pack and an adapter, the adapter includes an input terminal, a first adaptation interface, a second adaptation interface, a first switching structure and a second switching structure, The input terminal is electrically connected to the battery pack through a power cord, the first adapter interface is configured to cooperate with the first tool interface of the first power tool, and the second adapter interface is configured to cooperate with the second tool interface of the second power tool; A switching structure is electrically connected to the input terminal, the first switching structure can be switched between the first state and the second state; the second switching structure is electrically connected to the input terminal, and the second switching structure can be switched between the first state and the second state When the first power tool is connected to the adapter, the first tool interface cooperates with the first adapter interface, the first switching structure is in the second state, and the adapter outputs the first voltage to the first power tool; when the second power tool When connected with the adapter, the second tool interface cooperates with the second adapter interface, the second switching structure is in the second state, and the adapter outputs the second voltage to the second power tool.

In an example of the present invention, the battery pack includes a single-voltage battery pack and/or a dual-voltage battery pack, wherein the single-voltage battery pack can output a voltage to the outside, and the single-voltage battery pack is provided with a single-voltage battery pack terminal, and the single-voltage battery pack is provided with a single-voltage battery pack terminal. The battery pack terminal includes a positive terminal and a negative terminal; the dual-voltage battery pack can output two voltages to the outside, the dual-voltage battery pack is provided with a dual-voltage battery pack terminal, and the dual-voltage battery pack terminal includes two positive terminals and two negative terminal.

In an example of the present invention, the power supply system further includes a casing, and the casing is provided with a first battery pack cavity, a second battery pack cavity and a third battery pack cavity for installing the battery pack, the first battery pack cavity and the second battery pack A first insert seat and a second insert seat matched with the terminals of the single-voltage battery pack are respectively arranged in the pack cavity, and a third insert holder matched with the terminals of the dual-voltage battery pack is arranged in the third battery pack cavity.

In an example of the present invention, the adapter includes a first cover body, a second cover body, and a fixing bracket disposed between the first cover body and the second cover body, the first adapting interface is disposed on the first cover body, and the first adapting interface is disposed on the first cover body. An adapter interface includes a first output end; a second adapter interface is disposed on the second cover, the second adapter interface includes a second output end; the first switching structure is disposed on the side of the fixing bracket facing the first cover ; The second switching structure is arranged on the side of the fixing bracket facing the second cover body.

In an example of the present invention, the first switching structure includes a first switching part and a first switching socket matched with the first switching part, and the first switching part includes a first sliding seat, a first sliding seat connected with the first sliding seat The rod, the first spring sleeved on the first sliding rod and the first switching terminal installed on the first sliding seat, the first switching socket is provided with a first connecting terminal matched with the first switching terminal; When a switch terminal is separated from the first connection terminal, the first switch structure is in a first state, and when the first switch terminal is connected with the first connection terminal, the first switch structure is in a second state.

In an example of the present invention, the first switching structure is mounted on the fixing bracket through the first PCB board, the first connection terminal is electrically connected to the input terminal through the first PCB board, and the first switching terminal is connected to the first output terminal through a wire electrical connection.

In an example of the present invention, the second switching structure includes a second switching part and a second switching socket matched with the second switching part, the second switching part includes a second sliding seat, a second sliding seat connected with the second sliding seat a rod, a second spring sleeved on the second sliding rod, and a second switching terminal piece installed on the second sliding seat; the second switching socket is provided with a second connecting terminal matched with the second switching terminal; when When the second switching terminal is separated from the second connecting terminal, the second switching structure is in the first state, and when the second switching terminal is connected with the second connecting terminal, the second switching structure is in the second state.

In an example of the present invention, the second switching structure is mounted on the fixing bracket through a second PCB board, the second connecting terminal is electrically connected to the input terminal through the second PCB board, and the second switching terminal is electrically connected to the second output terminal through a wire connect.

In an example of the present invention, the first cover body is provided with a first groove at a position corresponding to the first output end, and the end of the first cover body facing away from the first groove is provided with a first button and a first button connected to the first button spring.

In an example of the present invention, the second cover body is provided with a second groove at a position corresponding to the second output end, and the end of the second cover body facing away from the second groove is provided with a second button and a second button connected to the second button spring.

In an example of the present invention, the battery pack includes two single-voltage battery packs respectively installed in the first battery pack cavity and the second battery pack cavity.

In an example of the present invention, the battery pack includes a bi-voltage battery pack installed in the third battery pack cavity.

In an example of the present invention, the battery pack includes a single-voltage battery pack installed in the first battery pack cavity or the second battery pack cavity and a dual-voltage battery pack installed in the third battery pack cavity.

In an example of the present invention, the battery pack includes two single-voltage battery packs installed in the first battery pack cavity and the second battery pack cavity respectively, and a dual-voltage battery pack installed in the third battery pack cavity.

In an example of the present invention, the casing is provided with a terminal, and the first socket, the second socket and the third socket are respectively electrically connected to the terminal.

In an example of the present invention, the terminal is provided with a foolproof structure, the housing is provided with a mounting hole at a position corresponding to the terminal, and the terminal is fixed on the mounting hole.

In an example of the present invention, the end of the power cord connected to the battery pack is provided with a first connection port matching the connection terminal, and the end connected to the input end is provided with a second connection port matched with the input end.

Another aspect of the present invention also provides a power tool system, including a battery pack, an adapter, a first power tool and a second power tool, wherein the first power tool is provided with a first tool interface, and the second power tool is provided with a second power tool Tool interface; the adapter includes an input end, a first adaptation interface, a second adaptation interface, a first switching structure and a second switching structure, the input end is electrically connected to the battery pack through a power cord, and the first adaptation interface is configured to be connected to the first adaption interface. A tool interface is matched, the second adapter interface is configured to cooperate with the second tool interface; the first switch structure is electrically connected to the input terminal, and the first switch structure can be switched between the first state and the second state; the second switch structure It is electrically connected to the input end, and the second switching structure can switch between the first state and the second state; when the first power tool is connected to the adapter, the first tool interface cooperates with the first adapter interface, and the first switching structure is in In the second state, the adapter outputs the first voltage to the first power tool; when the second power tool is connected to the adapter, the second tool interface cooperates with the second adapter interface, the second switching structure is in the second state, and the adapter sends the second voltage to the second power tool. The power tool outputs the second voltage.

In an example of the present invention, the first tool interface includes a first tool plug, and the second tool interface includes a second tool plug.

In an example of the present invention, the power tool system further includes a carrying assembly including a strap for carrying the battery pack and a waist belt connected to the strap.

The invention provides a power supply system and a power tool system. The power supply system is provided with a first switching structure electrically connected to the first output end and a second switching structure electrically connected to the second output end inside the adapter. By changing the battery pack The connection mode of the inner battery pack and the states of the first switching structure and the second switching structure enable the power supply system to output two voltages, which can be applied to power tools with two different working voltages. The power tool system of the present invention includes the above-mentioned power supply system and two power tools with different working voltages. When the first power tool is used, the output voltage of the power supply system is switched to the first voltage, and when the second power tool is used, the power supply The output voltage of the system is switched to the second voltage, thereby realizing the multi-purpose purpose of one power supply system and solving the inconvenience of changing the power supply system in different working voltage modes.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present invention;

2 is an exploded view of a battery pack in an embodiment of the power supply system of the present invention;

3 is a schematic structural diagram of the power supply system of the present invention after the bottom wall of the battery pack is removed in an embodiment;

4 is a schematic structural diagram of a first socket in an embodiment of the power supply system of the present invention;

5 is a schematic structural diagram of a second socket in an embodiment of the power supply system of the present invention

6 is a schematic diagram of a connection between a battery pack assembly and a socket in an embodiment of the power supply system of the present invention;

FIG. 7 is a schematic structural diagram of the connection terminal of the power supply system of the present invention to the battery pack;

8 is a schematic structural diagram of an adapter in an embodiment of the power supply system of the present invention;

Fig. 9 is the bottom view of Fig. 8;

10 is an exploded view of an adapter in an embodiment of the power supply system of the present invention;

11 is a schematic diagram of a first switching structure in an embodiment of the power supply system of the present invention;

12 is a top view of a first switching structure of the power supply system of the present invention in an embodiment;

13 is an exploded view of the first switching structure of the power supply system of the present invention in an embodiment;

FIG. 14 is an exploded view of the first switching part in FIG. 13;

15 is a schematic diagram of a second switching structure of the power supply system of the present invention in an embodiment;

16 is a top view of a second switching structure of the power supply system of the present invention in an embodiment;

17 is an exploded view of a second switching structure of the power supply system of the present invention in an embodiment;

Fig. 18 is an exploded view of the second switching part in Fig. 17;

19 is a schematic diagram of the cooperation of the first switching structure and the adapter in an embodiment of the power supply system of the present invention;

20 is a schematic diagram of the cooperation of the second switching structure and the adapter in an embodiment of the power supply system of the present invention;

21 is a schematic structural diagram of a power cord in an embodiment of the power supply system of the present invention;

Fig. 22 is the general circuit diagram of the power supply system of the present invention;

23 is a circuit diagram of installing two single-voltage battery packs in an embodiment of the power supply system of the present invention;

Fig. 24 is the circuit diagram when outputting the first voltage in Fig. 23;

Fig. 25 is a circuit diagram when the second voltage is output in Fig. 23;

FIG. 26 is a circuit diagram of installing a dual-voltage battery pack in an embodiment of the power supply system of the present invention;

FIG. 27 is a circuit diagram when the first voltage is output in FIG. 26;

FIG. 28 is a circuit diagram when the second voltage is output in FIG. 26;

FIG. 29 is a circuit diagram of installing a single-voltage battery pack and a dual-voltage battery pack in an embodiment of the power supply system of the present invention;

Figure 30 is a circuit diagram when the first voltage is output in Figure 29;

Fig. 31 is the circuit diagram when outputting the second voltage in Fig. 29;

32 is a circuit diagram of installing two single-voltage battery packs and one dual-voltage battery pack in an embodiment of the power supply system of the present invention;

Fig. 33 is the circuit diagram when outputting the first voltage in Fig. 31;

FIG. 34 is a circuit diagram when the second voltage is output in FIG. 31

FIG. 35 is a schematic structural diagram of installing a first power tool in the power tool system of the present invention in an embodiment;

FIG. 36 is a schematic structural diagram of installing a second power tool in the power tool system of the present invention in an embodiment;

FIG. 37 is a schematic diagram of mating between the adapter and the first tool plug of the first power tool in an embodiment of the power tool system of the present invention;

FIG. 38 is a schematic diagram of the connection between the adapter and the second tool plug of the second power tool in an embodiment of the power tool system of the present invention;

FIG. 39 is a schematic structural diagram of a backpack assembly in an embodiment of the power tool system of the present invention;

FIG. 40 is a schematic structural diagram of another angle of FIG. 37;

41 is a schematic diagram of the operation of the first power tool of the power tool system of the present invention in an embodiment;

42 is a schematic diagram of the operation of the second power tool of the power tool system of the present invention in an embodiment.

Component label description

100, battery pack; 101, casing; 102, first battery pack cavity; 103, second battery pack cavity; 104, third battery pack cavity; 105, first socket; 1051, first terminal; 1052, second terminal; 106, second socket; 107, third socket; 1071, third terminal; 1072, fourth terminal; 108, wiring terminal; 109, mounting hole; 110, single-voltage battery pack; 120 , dual-voltage battery pack; 200, adapter; 201, the first cover; 2011, the first groove; 2012, the first slide rail; 202, the second cover; 2021, the second groove; 2022, the second slide rail; 203, fixing bracket; 204, first PCB board; 205, first output end; 206, second PCB board; 207, second output end; 208, first button; 2081, first lock; 209, 210, the second button; 2101, the second lock; 211, the second button spring; 300, the first switching structure; 301, the first switching part; 302, the first switching socket; 3011, the first 3012, the first sliding rod; 3013, the first spring; 3014, the first switching terminal; 3015, the first wire; 3021, the first connecting terminal; 400, the second switching structure; 401, the second switching part; 402, the second switching socket; 4011, the second sliding seat; 4012, the second sliding rod; 4013, the second spring; 4014, the second switching terminal; 4015, the second wire; 4021, the second connecting terminal; 500, the power supply Cord; 501, first connection port; 502, second connection port; 600, first power tool; 601, first tool plug; 700, second power tool; 701, second tool plug; 800, backpack assembly; 801 , strap; 802, belt.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict. It should also be understood that the terms used in the embodiments of the present invention are for describing specific specific embodiments, rather than for limiting the protection scope of the present invention. In the following examples, the test methods without specific conditions are usually in accordance with conventional conditions or in accordance with the conditions suggested by various manufacturers.

It should be noted that the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this The implementable scope of the invention, and the change or adjustment of the relative relationship thereof, shall also be regarded as the implementable scope of the present invention without substantially changing the technical content.

In view of the above shortcomings in the background art, the purpose of the present invention is to provide a power supply system and a power tool system to improve the problem that the existing power supply system can only output one working voltage.

1 and 10, the present invention provides a power supply system, including a battery pack 100 and an adapter 200, the adapter 200 includes an input terminal, a first adaptation interface, a second adaptation interface, a first switching structure 300 and a second In the switching structure 400, the input end is electrically connected to the battery pack 100 through the power cord 500, the first adapting interface is configured to cooperate with the first tool interface of the first power tool, and the second adapting interface is configured to cooperate with the first tool interface of the second power tool. The two tool interfaces cooperate, the first switching structure 300 is electrically connected to the input terminal, and the first switching structure 300 can be switched between the first state and the second state; the second switching structure 400 is electrically connected to the input terminal, and the second switching structure 400 is switchable between a first state and a second state. When the first power tool is connected to the adapter, the first tool interface cooperates with the first adapter interface, the first switching structure 300 is in the second state, and the adapter 200 outputs the first voltage to the first power tool; When the adapter is connected, the second tool interface cooperates with the second adapter interface, the second switching structure 400 is in the second state, and the adapter 200 outputs the second voltage to the second power tool.

Referring to FIG. 2 , the battery pack 100 includes a single-voltage battery pack 110 and/or a dual-voltage battery pack 120 , wherein the single-voltage battery pack 110 includes a group of cells and a single-voltage battery pack terminal electrically connected to the cells. The terminals of the voltage battery pack include a positive terminal and a negative terminal electrically connected to the positive and negative electrodes of the cells, respectively. The single-voltage battery pack 110 can output a voltage to the outside. The dual-voltage battery pack 120 includes two sets of cells and a The dual-voltage battery pack terminals are electrically connected to the two groups of cells. The dual-voltage battery pack terminals include two positive terminals and two negative terminals that are electrically connected to the positive and negative electrodes of the two groups of cells respectively. The dual-voltage battery pack 120 Two voltages can be output externally.

Please refer to FIG. 2 to FIG. 5. In an embodiment of the present invention, the power supply system further includes a housing 101. The housing 101 may be an integral structure or a split cavity structure surrounded by a bottom wall and a side wall. The casing 101 is provided with a first battery pack cavity 102, a second battery pack cavity 103 and a third battery pack cavity 104 for installing battery packs. The first insert seat 105 and the second insert seat 106 are matched with the terminals of the pressure battery pack, and the third insert holder 107 is arranged in the third battery pack cavity 104 which is matched with the terminals of the dual-pressure battery pack. The first socket 105 and the second socket 106 have the same structure. The first socket 105 is provided with two first terminals 1051 and two second terminals 1052, and the first terminals 1051 and the second terminals 1052 are electrically connected , wherein the first terminal 1051 is matched with the terminal of the single-voltage battery pack, and the second terminal 1052 is electrically connected with the input end of the adapter 200 . The third socket 107 is provided with four third terminals 1071 and four fourth terminals 1072, the third terminals 1071 are electrically connected with the fourth terminals 1072, the third terminals 1071 are matched with the terminals of the dual-voltage battery pack, and the fourth Terminal 1072 is electrically connected to the input of adapter 200 . When installing the battery pack, install it corresponding to the socket in the battery pack cavity.

Referring to FIG. 2 and FIGS. 4 to 7 , the housing 101 is provided with a connection terminal 108 , and the second terminal 1052 and the fourth terminal 1072 are electrically connected to the connection terminal 108 , respectively. For example, a PCB board is arranged in the housing 101 , the first socket 105 , the second socket 106 and the third socket 107 are respectively electrically connected to the PCB, the terminals 108 are electrically connected to the PCB, and the PCB The board is provided with a circuit that conducts the first socket 105 , the second socket 106 , the third socket 107 and the connection terminal 108 . A side of the housing 101 corresponding to the terminal 108 is provided with a mounting hole 109 , and the terminal 108 is fixed inside the mounting hole 109 . Preferably, the connection terminal 108 is provided with a foolproof structure, which can prevent wiring errors. For example, the connection terminal structure in FIG. 7, the connection terminal 108 is a circular structure. For the electrode terminals corresponding to 1051 and the third terminal 1071, a center boss is arranged in the center of the eight electrode terminals, which is used for fitting with the wires.

8 to 10, the adapter 200 includes a first cover 201, a second cover 202 and a fixing bracket 203. The first cover 201 and the second cover 202 are snapped together to form a cavity, and the fixing bracket 203 is installed on the first cover 201. Inside the cavity formed by a cover body 201 and a second cover body 202 . The first adapter interface is provided on the first cover body 201, the first adapter interface includes a first output end 205, and the first output end 205 is electrically connected to the input end of the adapter; the second adapter interface is provided on the second cover body On 202 , the second adapter interface includes a second output end 207 , and the second output end 207 is electrically connected to the input end of the adapter 200 . The first switching structure 300 is installed on the side of the fixing bracket 203 facing the first cover 201 , and the second switching structure 400 is installed on the side of the fixing bracket 203 facing the second cover 202 .

Please refer to FIG. 11 to FIG. 14 , the first switching structure 300 includes a first switching part 301 and a first switching socket 302 matched with the first switching part 301 . The first switching part 301 includes a first sliding seat 3011 , a first sliding rod 3012 , a first spring 3013 and a first switching terminal 3014 , wherein the first sliding seat 3011 can slide in the first switching socket 302 , and the first sliding rod 3012 is fixedly connected with the first sliding seat 3011, one end of the first sliding rod 3012 is located in the first switching socket 302, and the other end extends to the outside of the adapter 200; the first spring 3013 is sleeved on the first sliding rod 3012, and one end thereof is The first switch terminal 3014 is mounted on the first sliding seat 3011, and the inside of the first switch socket 302 is provided with the first switch socket 302 and the first switch socket. A switch terminal 3014 is matched with the first connection terminal 3021 .

Please refer to FIG. 15 to FIG. 18 , the second switching structure 400 includes a second switching part 401 and a second switching socket 402 matched with the second switching part 401 . The second switching part 401 includes a second sliding seat 4011 , a second sliding rod 4012 , a second spring 4013 and a second switching terminal 4014 , wherein the second sliding seat 4011 can slide in the second switching socket 402 , and the second sliding rod 4012 is fixedly connected with the second sliding seat 4011, one end of the second sliding rod 4012 is located in the second switching socket 402, and the other end extends to the outside of the adapter 200; the second spring 4013 is sleeved on the second sliding rod 4012, and one end thereof is Abuts on the boss of the second sliding rod 4012, and the other end abuts on the inner wall of the second switching socket 402; the second switching terminal 4014 is installed on the second sliding seat 4011, and the inside of the second switching socket 402 is provided with the second switching socket 402. The two switching terminals 4014 are matched with the second connecting terminal 4021 .

10 , 13 , 17 , 19 and 20 , in an example, the first switching structure 300 is mounted on the fixing bracket 203 through the first PCB board 204 , and the first PCB board 204 is mounted on the fixing bracket 203 Facing the side of the first cover 201, the first output terminal 205 is disposed at one end of the first PCB board 204, the input terminal of the adapter 200 and the first connection terminal 3021 are electrically connected through the first PCB board 204, and the first switching terminal 3014 is electrically connected to the positive terminal and the negative terminal of the first output terminal 205 through the first wire 3015, respectively. The second switching structure 400 is installed on the fixing bracket 203 through the second PCB board 206 , the second PCB board 206 is installed on the side of the fixing bracket 203 facing the second cover 202 , and the second output end 207 is arranged on the second PCB board 206 At one end of the adapter 200, the input end of the adapter 200 is electrically connected to the first connection terminal 4021 through the second PCB board 206, and the second switch terminal 4014 is electrically connected to the positive terminal and the negative terminal of the second output terminal 207 through the second wire 4015, respectively.

13 , 14 , 17 and 18 , the number of the first switching terminals 3014 is the same as the number of the first connecting terminals 3021 , and the number of the first connecting terminals 3021 is the second terminal 1052 and the fourth The sum of the number of terminals 1072. The number of the second switching terminals 4014 is the same as the number of the second connection terminals 4021 , and the number of the second connection terminals 4021 is the sum of the numbers of the second terminals 1052 and the fourth terminals 1072 . For example, if the first socket 105 has two second terminals 1052, the second socket 106 has two second terminals 1052, and the third socket 107 has four fourth terminals 1072, the first connection terminal 3021 The number of the first switching terminals 3014 is eight, and the number of the second switching terminals 4014 is eight.

Referring to FIGS. 4 to 6 , in one embodiment, the two second terminals 1052 of the first socket 105 are marked as 1+ and 1-, respectively, and the two second terminals of the second socket 106 1052 are marked as: 2+ and 2-, respectively; the four fourth terminals 1072 of the third socket 107 are marked as: 3+, 3-, 4+ and 4-, respectively.

13, 14 and 19, the eight first connection terminals 3021 are marked as 3021a, 3021b, 3021c, 3021d, 3021e, 3021f, 3021g, 3021h, respectively; +, 2+, 3+ and 4+ are electrically connected in one-to-one correspondence, and the specific correspondence in the one-to-one correspondence is not limited. For example, the 3021a terminal is electrically connected to the 1+ terminal, the 3021b terminal is electrically connected to the 3+ terminal, and the 3021c terminal is electrically connected It is electrically connected to the 4+ terminal, and the 3021d terminal is electrically connected to the 2+ terminal. The 3021e terminal, 3021f terminal, 3021g terminal, and 3021h terminal are electrically connected to 1-terminal, 2-terminal, 3-terminal, and 4-terminal in one-to-one correspondence. The specific correspondence in the one-to-one correspondence is not limited. The 1-terminal is electrically connected, the 3021f terminal is electrically connected with the 4-terminal; the 3021g terminal is electrically connected with the 3-terminal; the 3021h terminal is electrically connected with the 2-terminal.

13, 14 and 19, the eight first switching terminals 3014 are respectively marked as 3014a, 3014b, 3014c, 3014d, 3014e, 3014f, 3014g, 3014h; wherein, the 3014a terminal is configured to be electrically connected to the 3021a terminal, and the 3014b The terminal configuration is electrically connected to the 3021b terminal, the 3014c terminal configuration is electrically connected to the 3021c terminal, the 3014d terminal configuration is electrically connected to the 3021d terminal, the 3014e terminal configuration is electrically connected to the 3021e terminal, the 3014f terminal configuration is electrically connected to the 3021f terminal, 3014g The terminal configuration is electrically connected to the 3021g terminal, and the 3014h terminal configuration is electrically connected to the 3021h terminal. The eight first switching terminals 3014 can be electrically connected to each other, and the electrical connection mode of the eight terminals can be any implementation that can achieve the purpose of the present invention and achieve the effect of the present invention. For example, the 3014a terminal, the 3014b terminal, the 3014c terminal, and the 3014d terminal are electrically connected to each other, and are electrically connected to the positive terminal of the first output end 205; The negative terminal of an output terminal 205 is electrically connected. In order to facilitate processing, the 3014a terminal, the 3014b terminal, the 3014c terminal, and the 3014d terminal in the first switching terminal 3014 can be integrally formed and made of a conductor. The 3014e terminal, the 3014f terminal, the 3014g terminal and the 3014h terminal in the first switching terminal 3014 are integrally formed and made of a conductor.

Referring to FIG. 17 , FIG. 18 and FIG. 20 , the eight second connection terminals 4021 are marked as 4021a , 4021b , 4021c , 4021d , 4021e , 4021f , 4021g , and 4021h respectively. The terminals 4021a, 4021b, 4021c, 4021d, 4021e, 4021f, 4021g, and 4021h are electrically connected to the terminals 1+, 3+, 1-, 4+, 3-, 2+, 4-, and 2- in one-to-one correspondence. The corresponding relationship in the correspondence can be any implementation scheme that can achieve the technical effect of the present invention and achieve the purpose of the present invention. For example, the 4021a terminal is electrically connected to the 1+ terminal, the 4021b terminal is electrically connected to the 3+ terminal, the 4021c terminal is electrically connected to the 1- terminal, the 4021d terminal is electrically connected to the 4+ terminal, the 4021e terminal is electrically connected to the 3- terminal, and the 4021f terminal is electrically connected to The 2+ terminal is electrically connected, the 4021g terminal is electrically connected to the 4- terminal, and the 4021h terminal is electrically connected to the 2- terminal.

17, 18 and 20, the eight second switching terminals 4014 are respectively marked as 4014a, 4014b, 4014c, 4014d, 4014e, 4014f, 4014g, 4014h; wherein, the 4014a terminal is configured to be electrically connected to the 4021a terminal, and the 4014b The terminal configuration is electrically connected to the 4021b terminal, the 4014c terminal configuration is electrically connected to the 4021c terminal, the 4014d terminal configuration is electrically connected to the 4021d terminal, the 4014e terminal configuration is electrically connected to the 4021e terminal, the 4014f terminal configuration is electrically connected to the 4021f terminal, 4014g The terminal configuration is electrically connected to the 4021g terminal, and the 4014h terminal configuration is electrically connected to the 4021h terminal. The eight first switching terminals 4014 can be electrically connected as needed, and the electrical connection mode of the eight terminals can be any implementation that can achieve the purpose of the present invention and achieve the effect of the present invention. For example, the 4014a terminal is electrically connected to the 4014b terminal and is electrically connected to the positive terminal of the second output end 207, the 4014c terminal, the 4014d terminal, the 4014e terminal and the 4014f terminal are electrically connected, and the 4014g terminal is electrically connected to the 4014h terminal and is electrically connected to the second output The negative terminal of terminal 207 is electrically connected. The 4014a terminal and the 4014b terminal can be integrally formed, the 4014c terminal, the 4014d terminal, the 4014e terminal and the 4014f terminal can be integrally formed, and the 4014g terminal and the 4014h terminal can be integrally formed.

It should be noted that the labels of the terminals in the above-mentioned embodiments are only for the convenience of description and clarity, and are not intended to be limiting.

Please refer to FIG. 13 , FIG. 17 , FIG. 19 and FIG. 20 , the terminal types of the first switching terminal 3014 , the second switching terminal 4014 , the first connecting terminal 3021 and the second connecting terminal 4021 are not limited. Can also be a contact. In order to simplify the manufacturing process, the terminal types of the connection terminals of the first connection terminal 3021 and the connection terminal of the second connection terminal 4021 are the same. For example, the first connection terminal 3021 and the second connection terminal 4021 are female terminals, and the first switching terminal 3014 and the second switching terminal 4014 are male terminals. Alternatively, the first connection terminal 3021 and the second connection terminal 4021 are male terminals, and the first switch terminal 3014 and the second switch terminal 4014 are female terminals.

Please refer to FIG. 13 , FIG. 17 , FIG. 19 and FIG. 20 , under the action of external force, the first sliding rod 3012 drives the first sliding seat 3011 to slide along the first switching socket 302 , and the first spring 3013 is compressed to the first switching socket 302 On the inner wall of the socket 302, the first switching terminal 3014 is correspondingly inserted into the first connecting terminal 3021, the line is turned on, the first output terminal 205 outputs the first voltage, and the first switching structure 300 is in the second state; after the external force is removed , Under the elastic action of the first spring 3013, the first sliding rod 3013 drives the first sliding seat 3011 to run in reverse, the first switching terminal 3014 is separated from the first connecting terminal 3021, the first output terminal 205 has no voltage output, and the first The switching structure 300 is in a first state.

Similarly, under the action of external force, the second sliding rod 4012 drives the second sliding seat 4011 to slide along the second switching socket 402, and the second spring 4013 is compressed to the inner wall of the second switching socket 402. At this time, the second switching The terminal 4014 is correspondingly inserted into the second connection terminal 4021, the line is turned on, the second voltage is output from the second output terminal 207, and the second switching structure 400 is in the second state; after the external force is removed, under the elastic action of the second spring 4013, The second sliding rod 4013 drives the second sliding seat 4011 to run in reverse, the second switching terminal 4014 is separated from the second connecting terminal 4021 , the second output terminal 207 has no voltage output, and the second switching structure 400 is in the first state.

Please refer to FIG. 8 to FIG. 10 , the first cover 201 is provided with a first groove 2011 at a position corresponding to the first output end 205 , and first slide rails 2012 are provided on both sides of the first cover 201 for installing the electric motor Tool, the end of the first cover 201 facing away from the first groove 2011 is provided with a first button 208 and a first button spring 209 connected to the first button 208, the first button 208 is connected with a first lock 2081, One end of a button spring 209 facing away from the first button 208 abuts on the fixing bracket 203 . Press the first button 208, the first button spring 209 is compressed downward, and the power tool slides along the first slide rail 2012 until the tool plug of the power tool slides into the first groove 2011 to couple with the first output end 205, and then At the same time, the tool plug of the power tool pushes the first sliding rod 3012 to drive the first sliding seat 3011 to slide in the first switching socket 302, and the first switching terminal 3014 is connected to the first connecting terminal 3021; Under the elastic action of a button spring 209, the first button 208 is reset, and the first latch 2081 connected to the first button 208 protrudes from the first cover 201 and holds the power tool, preventing the first switching terminal 3014 from being connected to the first connecting terminal. 3021 is separated under the elastic action of the first spring 3013, which plays a role of limiting. Similarly, the second cover 202 is provided with a second groove 2021 at the position corresponding to the second output end 207 , the two sides of the second cover 202 are provided with second sliding rails 2022 , and the second cover 202 is away from the second groove One end of the slot 2021 is provided with a second button 210 and a second button spring 211 connected to the second button 210 . The second button 210 is connected with a second lock 2101 , and the second button spring 211 is away from the second button 210 . One end abuts on the fixed bracket 203 . Press the second button 210, the second button spring 211 is compressed downward, and the power tool slides along the second slide rail 2022 until the tool plug of the power tool is coupled with the second output end 207 through the second groove 2021, and at the same time, The tool plug of the power tool pushes the second sliding rod 4012 to drive the second sliding seat 4011 to slide in the second switching socket 402, the second switching terminal 4014 is connected to the second connecting terminal 4021, and the second button 210 is released. Under the elastic action of the spring 211, the second button 210 is reset, and the second latch 2101 connected with the second button 210 protrudes from the second cover 202 and holds the power tool, preventing the second switching terminal 4014 and the second connecting terminal 4021 from being in contact with each other. The second spring 4013 separates under the elastic action of the second spring 4013, and plays the role of limiting.

Referring to FIG. 1 , FIG. 3 , FIG. 10 and FIG. 21 , in one embodiment, the battery pack 100 and the adapter 200 are electrically connected through a power cord 500 , and the power cord 500 includes a first connection port 501 connected to the battery pack 100 and A second connection port 502 connected to the input of the adapter 200 . The first connection port 501 matches the structure of the connection terminal 108 , the second connection port 502 is inserted into the input end of the adapter 200 , and the second connection port 502 includes two electrical connections with the first PCB board 204 and the second PCB board 206 respectively. terminal.

Please refer to FIG. 22 for the general circuit diagram of the present invention. This circuit is suitable for the following five situations: one single-voltage battery pack; two single-voltage battery packs; two single-voltage battery packs and one dual-voltage battery pack; one single-voltage battery pack pack and a dual-voltage battery pack; a dual-voltage battery pack, which will be described in detail below with reference to the accompanying drawings. Since the single-voltage battery pack contains only one set of cells, no matter how the first switching structure and the second switching structure are switched, the battery pack can only output one voltage nV, such as 24V. Therefore, the case where the battery pack includes a single-voltage battery pack will not be described in detail here.

Referring to FIGS. 2 , 13 , 17 and 23 to 25 , in an embodiment, a situation of two single-voltage battery packs 110 is shown, and the two single-voltage battery packs 110 are respectively installed in the first battery pack cavity 102 and The second battery pack cavity 103 can output two different voltages nV and 2nV, such as 24V and 48V, by adjusting the connection mode of the two battery packs. When the first switching portion 301 slides along the first switching socket 302 under the action of an external force until the first switching terminal 3014 is connected to the first connecting terminal 3021, at this time, the first switching structure 300 is in the second state, and the second switching structure 400 is in the first state, the 3014a terminal is electrically connected to the 1+ terminal via the 3021a terminal, the 3014d terminal is electrically connected to the 2+ terminal via the 3021d terminal, the 3014e terminal is electrically connected to the 1- terminal via the 3021e terminal, and the 3014h terminal is electrically connected to the 2- terminal via the 3021h terminal electrical connection. At the same time, the 3014a terminal and the 3014d terminal are respectively electrically connected to the positive terminal of the first output terminal 205, and the 3014e terminal and the 3014h terminal are respectively electrically connected to the negative terminal of the first output terminal 205. Therefore, the two single-voltage battery packs are connected in parallel. The first output terminal 205 outputs a first voltage nV, that is, a parallel voltage. When the second switching portion 401 slides along the second switching socket 402 under the action of the external force until the second switching terminal 4014 is connected to the second connecting terminal 4021, at this time, the second switching structure 400 is in the second state, and the first switching structure 300 is in the first state, the 4014a terminal is electrically connected to the 1+ terminal via the 4021a terminal, the 4014c terminal is electrically connected to the 1- terminal via the 4021c terminal, the 4014f terminal is electrically connected to the 2+ terminal via the 4021f terminal, and the 4014h terminal is electrically connected to the 2- terminal via the 4021h terminal The terminals are electrically connected, at the same time, the 4014c terminal is electrically connected to the 4014f terminal, the 4014a terminal is electrically connected to the positive terminal of the second output terminal 207, and the 4014h terminal is electrically connected to the negative terminal of the second output terminal 207. Therefore, two single-voltage battery packs are electrically connected For series connection, the second output terminal 207 outputs a second voltage of 2nV, that is, a series voltage.

Referring to FIGS. 2 , 13 , 17 and 26 to 28 , in one embodiment, a bi-voltage battery pack 120 is shown. The bi-voltage battery pack 120 is installed in the third battery pack cavity 104 . The connection method of the two groups of cells in the dual-voltage battery pack can output two different voltages nV and 2nV, such as 24V and 48V. When the first switching portion 301 slides along the first switching socket 302 under the action of an external force until the first switching terminal 3014 is connected to the first connecting terminal 3021, at this time, the first switching structure 300 is in the second state, and the second switching structure 400 is in the first state, the 3014b terminal is electrically connected to the 3+ terminal via the 3021b terminal, the 3014c terminal is electrically connected to the 4+ terminal via the 3021c terminal, the 3014g terminal is electrically connected to the 3- terminal via the 3021g terminal, and the 3014f terminal is electrically connected to the 4- terminal via the 3021f terminal The terminals are electrically connected, at the same time, the 3014b terminal and the 3014c terminal are respectively electrically connected to the positive terminal of the first output terminal 205, and the 3014g terminal and the 3014f terminal are respectively electrically connected to the negative terminal of the first output terminal 205. At this time, the two groups of cells are connected in parallel. , the first output terminal 205 outputs the first voltage nV, such as 24V; when the second switching part 401 slides along the second switching socket 402 under the action of external force to the second switching terminal 4014 and the second connecting terminal 4021 is connected, this , the second switching structure 400 is in the second state, the first switching structure 300 is in the first state, the 4014b terminal is electrically connected to the 3+ terminal via the 4021b terminal, the 4014e terminal is electrically connected to the 3- terminal via the 4021e terminal, and the 4014d terminal is electrically connected to the 3- terminal via the 4021d terminal. The terminal is electrically connected to the 4+ terminal and the 4014g terminal is electrically connected to the 4- terminal via the 4021g terminal. At the same time, the 4014b terminal is electrically connected to the positive terminal of the second output terminal 207, the 4014e terminal is electrically connected to the 4014d terminal, and the 4014g terminal is electrically connected to the negative terminal of the second output terminal 207. At this time, the two groups of cells are connected in series, and the second output terminal is electrically connected to the second output terminal 207. The terminal 207 outputs a second voltage of 2nV, eg, 48V.

Please refer to FIGS. 2 , 13 , 17 and 29 to 31 , in one embodiment, a single-voltage battery pack 110 and a dual-voltage battery pack 120 are shown, and the single-voltage battery pack 110 is installed in the first battery pack In the cavity 102 or the second battery pack cavity 103 , the bi-voltage battery pack 120 is installed in the third battery pack cavity 104 . By adjusting the connection method of the battery pack, two different voltages, nV and 2nV, such as 24V and 48V, can be output. When the first switching portion 301 slides along the first switching socket 302 under the action of an external force until the first switching terminal 3014 is connected to the first connecting terminal 3021, at this time, the first switching structure 300 is in the second state, and the second switching structure 400 is in the first state, the 3014b terminal is electrically connected to the 3+ terminal via the 3021b terminal, the 3014c terminal is electrically connected to the 4+ terminal via the 3021c terminal, the 3014d terminal is electrically connected to the 2+ terminal via the 3021d terminal, and the 3014g terminal is electrically connected to the 3- terminal via the 3021g terminal The terminals are electrically connected, the 3014f terminal is electrically connected to the 4-terminal via the 3021f terminal, and the 3014h terminal is electrically connected to the 2- terminal via the 3021h terminal. The 3014g terminal and the 3014h terminal are respectively electrically connected to the negative terminal of the first output terminal 205, and the first output terminal 205 outputs a first voltage nV, such as 24V; The socket 402 slides to the second switching terminal 4014 and connects with the second connecting terminal 4021. At this time, the second switching structure 400 is in the second state, the first switching structure 300 is in the first state, and the 4014b terminal is connected to the 3+ terminal via the 4021b terminal. Electrically connected, the 4014e terminal is electrically connected to the 3- terminal via the 4021e terminal, the 4014d terminal is electrically connected to the 4+ terminal via the 4021d terminal, the 4014g terminal is electrically connected to the 4- terminal via the 4021g terminal, and the 4014f terminal is electrically connected to the 2+ terminal via the 4021f terminal. Connected, the 4014h terminal is electrically connected to the 2-terminal via the 4021h terminal. Meanwhile, the 4014b terminal is electrically connected to the positive terminal of the second output terminal 207 , the 4014e terminal, the 4014d terminal, and the 4014f terminal are electrically connected, and the 4014g terminal and the 4014h terminal are respectively electrically connected to the negative terminal of the second output terminal 207 . Therefore, one of the two cells in the dual-voltage battery pack 120 (the cell electrically connected to the 4+ terminal and the 4- terminal) is connected in parallel with the single-voltage battery pack and then connected in series with the other cell. The two output terminals 207 output a second voltage of 2nV, for example, 48V. In another embodiment, the two groups of cells in the dual-voltage battery pack can also be connected in parallel, and then connected in series with the single-voltage battery pack, and the second voltage is also output from the second output terminal.

Please refer to FIGS. 2 , 13 , 17 and 32 to 34 , in an embodiment, two single-voltage battery packs 110 and one dual-voltage battery pack 120 are shown, and the two single-voltage battery packs 110 are respectively installed in In the first battery pack cavity 102 and the second battery pack cavity 103, the dual-voltage battery pack 120 is installed in the third battery pack cavity 104, and the two single-voltage battery packs 110 are the first single-voltage battery pack and the second single-voltage battery pack, respectively. battery pack. The positive terminal and the negative terminal of the single-voltage battery pack terminal of the first single-voltage battery pack are electrically connected to the 1+ terminal and the 1- terminal in one-to-one correspondence. The positive terminal and the negative terminal of the single-voltage battery pack terminal of the second single-voltage battery pack are electrically connected to the 2+ terminal and the 2- terminal in one-to-one correspondence. The positive terminals and negative terminals of the two groups of cells in the dual-voltage battery pack 120 are electrically connected to the 3+ terminals, the 4+ terminals, the 3- terminals, and the 4- terminals in one-to-one correspondence. By adjusting the connection mode of the three battery packs, two different voltages, nV and 2nV, such as 24V and 48V, can be output. When the first switch portion 301 slides along the first switch socket 302 under the action of external force until the first switch terminal 3014 is connected to the first connection terminal 3021, at this time, the first switch structure 300 is in the second state, and the second switch structure 400 is in the first state, the 3014a terminal is electrically connected to the 1+ terminal via the 3021a terminal, the 3014b terminal is electrically connected to the 3+ terminal via the 3021b terminal, the 3014c terminal is electrically connected to the 4+ terminal via the 3021c terminal, and the 3014d terminal is electrically connected to the 2+ terminal via the 3021d terminal The terminals are electrically connected, the 3014e terminal is electrically connected to the 1-terminal via the 3021e terminal, the 3014f terminal is electrically connected to the 4-terminal via the 3021f terminal, the 3014g terminal is electrically connected to the 3-terminal via the 3021g terminal, and the 3014h terminal is electrically connected to the 2- terminal via the 3021h terminal. Meanwhile, the 3014a terminal, the 3014b terminal, the 3014c terminal, and the 3014d terminal are respectively electrically connected to the positive terminal of the first output terminal 205, and the 3014e terminal, the 3014f terminal, the 3014g terminal, and the 3014h terminal are respectively electrically connected to the negative terminal of the first output terminal 205. At this time, the two single-voltage battery packs and the two groups of cells in the double-voltage battery pack are connected in parallel, and the first output terminal 205 outputs a first voltage nV, such as 24V; when the second switching part 401 is under the action of external force Slide along the second switch socket 402 until the second switch terminal 4014 is connected to the second connection terminal 4021. At this time, the second switch structure 400 is in the second state, the first switch structure 300 is in the first state, and the terminal 4014a is in the second state through the 4021a The terminal is electrically connected to the 1+ terminal, the 4014c terminal is electrically connected to the 1- terminal via the 4021c terminal, the 4014f terminal is electrically connected to the 2+ terminal via the 4021f terminal, the 4014h terminal is electrically connected to the 2- terminal via the 4021h terminal, and the 4014b terminal is electrically connected to the 2- terminal via the 4021b terminal. The 3+ terminal is electrically connected, the 4014e terminal is electrically connected to the 3- terminal via the 4021e terminal, the 4014d terminal is electrically connected to the 4+ terminal via the 4021d terminal, and the 4014g terminal is electrically connected to the 4- terminal via the 4021g terminal. At the same time, the 4014a terminal and the 4014b terminal are respectively electrically connected to the positive terminal of the second output terminal 115 , the 4014c terminal, the 4014d terminal, the 4014e terminal, and the 4014f terminal are electrically connected to each other, and the 4014g terminal and the 4014h terminal are respectively connected to the negative terminal of the second output terminal 115 . Terminals are electrically connected. Therefore, the first single-voltage battery pack is connected in parallel with the first cell, named as the first parallel circuit; the second single-voltage battery pack is connected in parallel with the second cell, named as the second parallel circuit, and the first parallel circuit is connected with The second parallel circuit is connected in series, and the second output terminal 207 outputs a second voltage of 2nV, for example, 48V.

Please refer to FIG. 35 and FIG. 36 , the present invention also provides a power tool system, which includes the power supply system of the present invention, and the first power tool 600 and the second power tool 700 , the first power tool 600 and the second power tool 700 The working voltage of the first power tool 600 is nV, such as 24V, and the working voltage of the second power tool 700 is 2nV, such as 48V. Therefore, when using the first power tool 600, connect it with the adapter 200. The first output terminal 205 is electrically connected, and when the second power tool 700 is used, it is electrically connected to the second output terminal 207 of the adapter 200 .

Please refer to FIGS. 8 , 9 , 10 , 13 , 17 and 35 to 38 . Preferably, the first power tool 600 is provided with a first tool interface, and the first tool interface includes a connection with the first output end 205 The mated first tool plug 601 and the second power tool 700 are provided with a second tool interface, and the second tool interface includes a second tool plug 701 matched with the second output end 207 . When installing the first power tool 600 , press the first button 208 and slide the first power tool 600 along the first slide rail 2012 until the connection terminal of the first tool plug 601 is connected with the connection terminal of the first output end 205 . During the sliding process of the first power tool 600, after the first tool plug 601 contacts with the first sliding rod 3012, the first sliding rod 3012 will be pushed to drive the first sliding seat 301 to slide along the first switching socket 302 until the first switching terminal 3014 is connected to the first connection terminal 3021, at this time, the first output terminal 205 outputs the first voltage, the first button 208 is released, the first button 208 is reset, and the first lock 2081 fixed with the first button 208 protrudes from the first button 208. A cover body 201 is inserted into the first power tool 600 . Similarly, when installing the second power tool 700, press the second button 210, and at the same time slide the second power tool 700 along the second slide rail 2022 until the connection terminal on the second tool plug 701 is connected with the second output end 207 The terminals are connected. During the sliding process of the second power tool 700, after the second tool plug 701 contacts the second sliding rod 4012, it pushes the second sliding rod 4012 and drives the second sliding seat 401 to slide along the second switching socket 402 until the second switching terminal 4014 is connected to the second connection terminal 4021, at this time, the second output terminal 207 outputs the second voltage, the second button 210 is released, the second button 210 is reset, and the second lock 2101 fixed with the second button 210 protrudes from the second button 210. The two cover bodies 202 are embedded in the second power tool 700 .

Referring to FIGS. 39 to 42 , in one embodiment, the power tool system further includes a backpack assembly 800 for carrying a back, the back component 800 includes a back strap 801 and a waist belt 802 , and the back strap 801 is connected to the housing 101 for carrying a battery In the bag 100, the waist belt 802 is fixed to the bottom of the back strap 801 for detachable fixing around the waist. When in use, the battery pack 100 is carried on the body by the carrying assembly 800, and the power tool can be held by hand. For example, when the first power tool 600 is used, the first power tool 600 is installed on the first cover 201 of the adapter 200, The battery pack 100 is carried on the worker's body, and the first power tool 600 can be held to start working. Similarly, when using the second power tool 700 , install the second power tool 700 on the second cover 202 of the adapter 200 , carry the battery pack 100 on the staff, and hold the second power tool 700 to start working.

The power supply system of the present invention adjusts the connection mode of the battery pack through the first switching structure and the second switching structure, so that the power supply system outputs two different voltages, thereby realizing one power supply system application and electric tools with different working voltages, and solving the problem of existing In the technology, a power supply system can only output one working voltage, which saves costs and improves work efficiency. Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and practical significance.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims (20)

1. A power supply system, characterized in that, comprising: battery pack; and an adapter comprising: an input end, electrically connected to the battery pack through a power cord; a first adaptation interface configured to cooperate with the first tool interface of the first power tool; a second adaptation interface configured to cooperate with the second tool interface of the second power tool; a first switching structure electrically connected to the input terminal, the first switching structure being switchable between a first state and a second state; and a second switching structure, electrically connected to the input terminal, the second switching structure can be switched between the first state and the second state; When the first power tool is connected to the adapter, the first tool interface cooperates with the first adapter interface, the first switching structure is in a second state, and the adapter sends the power to the first power tool. the tool outputs the first voltage; When the second power tool is connected to the adapter, the second tool interface cooperates with the second adapter interface, the second switching structure is in a second state, and the adapter sends the second power tool to the second power tool. The tool outputs a second voltage. 2 . The power supply system according to claim 1 , wherein the battery pack comprises a single-voltage battery pack and/or a dual-voltage battery pack, the single-voltage battery pack can output a voltage externally, and the single-voltage battery pack can output a voltage externally. 3 . The battery pack is provided with a single-voltage battery pack terminal, and the single-voltage battery pack terminal includes a positive terminal and a negative terminal; the double-voltage battery pack can output two voltages to the outside, and the double-voltage battery pack is provided with a double-voltage battery pack. Press the battery pack terminals, the dual-voltage battery pack terminals include two positive terminals and two negative terminals. 3 . The power supply system according to claim 2 , further comprising a casing, wherein the casing is provided with a first battery pack cavity, a second battery pack cavity and a third battery pack for installing the battery pack. 4 . The first battery pack cavity and the second battery pack cavity are respectively provided with a first insert seat and a second insert seat matching the terminals of the single-voltage battery pack, and the third battery pack cavity There is a third socket that matches the terminal of the dual-voltage battery pack. 4. The power supply system according to claim 1, wherein the adapter comprises a first cover body, a second cover body and a fixing bracket disposed between the first cover body and the second cover body, the The first adaptation interface is arranged on the first cover body, the first adaptation interface includes a first output end; the second adaptation interface is arranged on the second cover body, the second adaptation interface The matching interface includes a second output end; the first switching structure is arranged on the side of the fixing bracket facing the first cover body, and the second switching structure is arranged on the side of the fixing bracket facing the second cover body side. 5 . The power supply system according to claim 4 , wherein the first switching structure comprises a first switching part and a first switching socket matched with the first switching part, and the first switching part comprises a first switching part. 6 . a sliding seat, a first sliding rod connected to the first sliding seat, a first spring sleeved on the first sliding rod, and a first switching terminal set on the first sliding seat, the The first switching socket is provided with a first connecting terminal matched with the first switching terminal; when the first switching terminal is separated from the first connecting terminal, the first switching structure is in the first state; when the first switching terminal is separated from the first connecting terminal, the first switching structure is in the first state; When the first switching terminal is connected to the first connecting terminal, the first switching structure is in a second state. 6 . The power supply system according to claim 5 , wherein the first switching structure is mounted on the fixing bracket through a first PCB board, and the first connection terminal is connected to the fixed bracket through the first PCB board. 7 . The input terminal is electrically connected, and the first switching terminal is electrically connected to the first output terminal through a wire. 7 . The power supply system according to claim 4 , wherein the second switching structure comprises a second switching part and a second switching socket matched with the second switching part, and the second switching part comprises a first switching part. 8 . two sliding bases, a second sliding rod connected to the second sliding base, a second spring sleeved on the second sliding rod, and a second switching terminal set on the second sliding base, the The second switching socket is provided with a second connecting terminal matched with the second switching terminal; when the second switching terminal is separated from the second connecting terminal, the second switching structure is in the first state; when the second switching terminal is separated from the second connecting terminal, the second switching structure is in the first state; When the second switching terminal is connected to the second connecting terminal, the second switching structure is in a second state. 8 . The power supply system according to claim 7 , wherein the second switching structure is mounted on the fixing bracket through a second PCB board, and the second connection terminal is connected to the fixed bracket through the second PCB board. 9 . The input terminal is electrically connected, and the second switching terminal is electrically connected to the second output terminal through a wire. 9 . The power supply system according to claim 4 , wherein the first cover body is provided with a first groove at a position corresponding to the first output end, and the first cover body faces away from the first groove. 10 . One end of the button is provided with a first button and a first button spring connected with the first button. 10 . The power supply system according to claim 9 , wherein the second cover is provided with a second groove at a position corresponding to the second output end, and the second cover faces away from the second groove. 11 . One end of the button is provided with a second button and a second button spring connected with the second button. 11 . The power supply system according to claim 3 , wherein the battery pack comprises two single-voltage battery packs respectively installed in the first battery pack cavity and the second battery pack cavity. 12 . 12. The power supply system according to claim 3, wherein the battery pack comprises a bi-voltage battery pack installed in the third battery pack cavity. 13 . The power supply system according to claim 3 , wherein the battery pack comprises a single-voltage battery pack installed in the first battery pack cavity or the second battery pack cavity and a single-voltage battery pack installed in the third battery pack cavity. 14 . Bi-voltage battery pack inside the cavity. 14. The power supply system according to claim 3, wherein the battery pack comprises two single-voltage battery packs installed in the first battery pack cavity and the second battery pack cavity respectively, and two single-voltage battery packs installed in the The bi-voltage battery pack in the third battery pack cavity. 15 . The power supply system according to claim 3 , wherein the housing is provided with terminals, the first socket, the second socket and the third socket are respectively 15 . be electrically connected to the terminal. 16 . The power supply system according to claim 15 , wherein the connection terminal is provided with a foolproof structure, the housing is provided with a mounting hole at a position corresponding to the connection terminal, and the connection terminal is fixed on the on the mounting hole. 17 . The power supply system according to claim 16 , wherein the end of the power cord connected to the battery pack is provided with a first connection port matching the connection terminal, and the power cord is connected to the battery pack. 18 . The end connected to the input end is provided with a second connection port matched with the input end. 18. A power tool system, comprising: battery pack; an adapter, electrically connected to the battery pack; a first power tool, which is provided with a first tool interface; a second power tool with a second tool interface thereon; The adapter includes: an input end, electrically connected to the battery pack through a power cord; a first adaptation interface, configured to cooperate with the first tool interface; a second adaptation interface, configured to cooperate with the second tool interface; a first switching structure, electrically connected to the input end, the first switching structure can be switched between a first state and a second state; a second switching structure electrically connected to the input terminal, the second switching structure can be switched between the first state and the second state; When the first power tool is connected to the adapter, the first tool interface cooperates with the first adapter interface, the first switching structure is in the second state, and the adapter outputs the first power tool to the first power tool. Voltage; When the second power tool is connected to the adapter, the second tool interface cooperates with the second adapter interface, the second switching structure is in the second state, and the adapter outputs the output to the second power tool second voltage. 19. The power tool system of claim 18, wherein the first tool interface includes a first tool plug and the second tool interface includes a second tool plug. 20 . The power tool system according to claim 18 , further comprising a backpack assembly comprising a strap for carrying the battery pack and a waist belt connected to the strap. 21 .

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