Power switching assembly and tool and system having the same

Abstract

The present application provides a kind of electric energy switching assembly and the tool and system with the electric energy switching assembly.Electric energy switching device, including the plug for connecting power supply device, and the plug has the output end of electric energy output to the outside world, further comprising electric energy switching assembly electrically connected with plug, the switching member for switching the coupling form of plug, the switching member can slide between first position and second position, to change the coupling form between plug by the position of switching member switching.This electric energy switching device of the present application can realize two voltage switching, so that the electric energy storage electric tool and system using the electric energy switching device makes the electric tool with the electric energy switching device match multiple power supply devices with different output voltages, effectively increases the application range of electric energy storage system / electric tool / electric tool system using the electric energy switching device, reduces the cost.

Description

TECHNICAL FIELD

[0001] The present application relates to an electric energy switching assembly and a tool and system having the same, and belongs to the technical field of garden tools. BACKGROUND

[0002] In the garden machinery and power tool industry, electric tools usually have a rated working voltage, that is, tools with different rated voltages need battery packs with different rated voltages to provide power. To solve the above problems, battery packs that can realize double-voltage switching have appeared on the market.

[0003] The voltage regulation structure of the double-voltage battery pack in the prior art is concentrated on the battery pack, and different plugs (male plugs) are used to realize the selection of the voltage, so that the battery pack outputs different voltages.

[0004] In the field of large-volume batteries or backpack batteries, the tool and the battery are not directly plugged together, but are connected through a power cord. At this time, it is not convenient to realize different voltage outputs through different male plugs.

[0005] Therefore, it is necessary to provide a new electric energy switching device suitable for electric energy switching and a tool and system using the same to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide an electric energy switching device capable of realizing two voltage switching and an electric storage electric tool and system using the same.

[0007] To achieve the above-mentioned purpose of the application, the present application provides an electric energy switching device, comprising a plug for connecting a power supply device, and the plug has an output end for outputting electric energy to the outside world, and further comprising an electric energy switching assembly electrically connected with the plug, the electric energy switching assembly has a switching member for switching the coupling form of the plug, and the switching member can slide between a first position and a second position to switch the coupling form between the plugs by changing the position of the switching member.

[0008] As a further improvement of the present application, the electric energy switching device has a housing, the electric energy switching assembly has a control member accommodated in the housing, and the switching member moves between the first position and the second position under the push / pull action of the control member to realize the change of the coupling form between the plugs by connecting / detaching different plugs.

[0009] As a further improvement of the present application, the switching member is a switching member electrically connected to different plug-in units, and the same control member can be connected to multiple switching members of different structures at the same time, and the multiple switching members can be moved with the control member to connect to different electronic pairs simultaneously / separately.

[0010] As a further improvement of the present application, the control member comprises a switching button arranged on the housing and a trigger part arranged corresponding to the switching button, the switching members are arranged in parallel and side by side on the trigger part, and the switching members are arranged at least in two.

[0011] As a further improvement of the present application, the control member comprises a switching button arranged through the housing and a trigger part arranged corresponding to the switching button, the switching members are arranged corresponding to both sides of the trigger part.

[0012] As a further improvement of the present application, the control member comprises a switching button arranged through the housing and two trigger parts arranged corresponding to the switching button respectively, the two trigger parts are arranged in parallel, and the switching members on different trigger parts are arranged staggered.

[0013] As a further improvement of the present application, the switching button is arranged in two, and the two trigger parts are arranged corresponding to the switching button one by one.

[0014] As a further improvement of the present application, the switching member is an insulating switching member for separating two adjacent plug-in units, and the control member has a switching button and a trigger part connected to the switching button for connecting the switching member.

[0015] As a further improvement of the present application, the power switching device comprises a first plug-in unit and a second plug-in unit for connecting the power supply device and an output end for connecting the power tool, when the switching member is in the second position, two terminals of different polarities in the first plug-in unit and the second plug-in unit are electrically connected through the switching member, and the remaining two terminals of different polarities are respectively electrically connected to two terminals of the same polarity in the output end.

[0016] To achieve the above-mentioned purposes, the present application further provides an electric energy storage system, comprising a first energy unit and a second energy unit with an output voltage of nV, and further comprising a power switching device for connecting the two groups of energy units, the power switching device has a first position and a second position switched by pushing / pulling, and the power switching device can switch the series-parallel form of the first energy unit and the second energy unit by changing the position, to output two different voltages.

[0017] As a further improvement of the present application, the first energy unit and the second energy unit each has positive and negative electrodes for realizing energy output, and the positive and negative electrodes have at least three arrangement structures; the electric energy switching device has switching members for switching the coupling forms of the positive and negative electrodes of the first energy unit and the second energy unit.

[0018] As a further improvement of the present application, the switching members have a first position for connecting the first energy unit and the second energy unit in parallel, when the switching members are in the first position, the switching members realize low-voltage output of the electric energy storage system by connecting the electrodes of the same polarity in the first energy unit and the second energy unit respectively.

[0019] As a further improvement of the present application, the switching members have a second position for connecting the first energy unit and the second energy unit in series, when the switching members are in the second position, the switching members realize high-voltage output of the electric energy storage system by connecting two electrodes of opposite polarity in the first energy unit and the second energy unit.

[0020] To achieve the above-mentioned application purposes, the present application further provides an electric power tool using the electric energy switching device mentioned above, the electric power tool cooperates with the electric energy storage system through the electric energy switching device, so that the output voltage of the electric energy storage system can match the rated voltage of the electric power tool.

[0021] To achieve the above-mentioned application purposes, the present application further provides an electric power tool system including an electric power tool and an electric energy storage system for providing power for the electric power tool, the electric energy storage system is the electric energy storage system mentioned above, the electric energy storage system has an electric energy switching device, and the electric energy storage system cooperates with the electric power tool through the electric energy switching device, so that one of the two different output voltages of the electric energy storage system can match the rated voltage of the electric power tool.

[0022] The electric energy switching device of the present application can realize the output of two different voltages by adjusting the coupling forms between different inserts through the switching members which can be switched between the first position and the second position and the inserts which are electrically connected with the switching members, and can also make the electric power tool with the electric energy switching device match a plurality of power supply devices with different output voltages, effectively increase the application range of the electric energy storage system / electric power tool / electric power tool system using the electric energy switching device, and reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1A perspective view of an embodiment of the energy storage system of the present application.

[0024] Figure 2 A perspective view of an embodiment of the energy storage system of the present application. Figure 1 A perspective view of an embodiment of the energy storage system of the present application.

[0025] Figure 3 A perspective view of an embodiment of the energy storage system of the present application. Figure 1 A perspective view of an embodiment of the energy storage system of the present application.

[0026] Figure 4 A perspective view of an embodiment of the energy storage system of the present application. Figure 3 A perspective view of an embodiment of the energy storage system of the present application.

[0027] Figure 5 A perspective view of an embodiment of the energy storage system of the present application. Figure 4 A perspective view of an embodiment of the energy storage system of the present application.

[0028] Figure 6 A perspective view of an embodiment of the energy storage system of the present application.

[0029] Figure 7 A perspective view of an embodiment of the energy storage system of the present application.

[0030] Figure 8 A perspective view of an embodiment of the energy storage system of the present application.

[0031] Figure 9 A perspective view of an embodiment of the energy storage system of the present application.

[0032] Figure 10 A perspective view of an embodiment of the energy storage system of the present application. Figure 9 A perspective view of an embodiment of the energy storage system of the present application.

[0033] Figure 11 A perspective view of an embodiment of the energy storage system of the present application. Figure 9 A perspective view of an embodiment of the energy storage system of the present application.

[0034] Figure 12 A perspective view of an embodiment of the energy storage system of the present application. Figure 11 A perspective view of an embodiment of the energy storage system of the present application.

[0035] Figure 13 A perspective view of an embodiment of the energy storage system of the present application. Figure 9 A perspective view of an embodiment of the energy storage system of the present application.

[0036] Figure 14 A perspective view of an embodiment of the energy storage system of the present application. Figure 9 A perspective view of an embodiment of the energy storage system of the present application.

[0037] Figure 15 A perspective view of an embodiment of the energy storage system of the present application. Figure 9The circuit diagram of the electric energy storage system when the electric energy switching device is in the first position.

[0038] Figure 16 The perspective view of the electric energy storage system embodiment three of the present application.

[0039] Figure 17 For Figure 16 The perspective view of the electric energy switching device from another angle.

[0040] Figure 18 For Figure 17 The exploded view of the electric energy switching device.

[0041] Figure 19 For Figure 17 The exploded view of the electric energy switching device.

[0042] Figure 20 For Figure 16 The circuit diagram of the electric energy storage system when the electric energy switching device is in the first position.

[0043] Figure 21 For Figure 20 The circuit diagram of the electric energy storage system when the electric energy switching device is in the first position.

[0044] Figure 22 For Figure 16 The circuit diagram of the electric energy storage system when the electric energy switching device is in the second position.

[0045] Figure 23 For Figure 22 The circuit diagram of the electric energy storage system when the electric energy switching device is in the second position.

[0046] Figure 24 The perspective view of the electric energy storage system embodiment four of the present application.

[0047] Figure 25 For Figure 24 The perspective view of the electric energy switching device from another angle.

[0048] Figure 26 For Figure 25 The exploded view of the electric energy switching device.

[0049] Figure 27 For Figure 24 The structural view of the electric energy switching device combined with the plug-in unit

[0050] Figure 28 For Figure 24 The circuit diagram of the electric energy storage system when the electric energy switching device is in the first position.

[0051] Figure 29For Figure 28 Circuit diagram of the energy storage system when the energy switching device is in the first position.

[0052] Figure 30 For Figure 24 Circuit diagram of the energy storage system when the energy switching device is in the second position.

[0053] Figure 31 For Figure 30 Circuit diagram of the energy storage system when the energy switching device is in the second position.

[0054] Figure 32 For For

[0055] For Figure 33 For Figure 32 For For

[0056] For Figure 34 For Figure 33 For For

[0057] For Figure 35 For Figure 32 For For

[0058] For Figure 36 For Figure 32 Circuit diagram of the energy storage system when the energy switching device is in the first position.

[0059] Figure 37 For Figure 36 Circuit diagram of the energy storage system when the energy switching device is in the first position.

[0060] Figure 38 For Figure 32 Circuit diagram of the energy storage system when the energy switching device is in the second position.

[0061] Figure 39 For Figure 38 Circuit diagram of the energy storage system when the energy switching device is in the second position.

[0062] Figure 40 For For

[0063] For Figure 41 For Figure 40 For For

[0064] For Figure 42This is a structural diagram of the seventh embodiment of the electric energy storage system of the present invention, omitting the electric energy switching device and part of the cavity.

[0065] Figure 43 This is a structural diagram of the eighth embodiment of the electric energy storage system of the present invention, omitting the electric energy switching device and part of the cavity.

[0066] Figure 44 It is a three-dimensional schematic diagram of the power tool system of the present invention. DETAILED DESCRIPTION

[0067] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted.

[0069] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0070] See also Figure 1 、 Figure 2 As shown, an electric energy storage system provided in the first embodiment of the present invention comprises a first energy unit (unnumbered), a second energy unit (unnumbered) and an electric energy switching device 11 for realizing electric energy output.

[0071] In the present invention, the voltages of the first energy unit and the second energy unit are both nV, and the first energy unit has a positive electrode 12a and a negative electrode 12b for outputting electrical energy; the second energy unit has a positive electrode 13a and a negative electrode 13b for outputting electrical energy; further, the electrical energy storage system also includes a cavity 2 for accommodating the first energy unit and the second energy unit, the positive electrodes 12a, 13a and the negative electrodes 12b, 13b are accommodated in the cavity 2 and exposed to the outside of the cavity 2 so as to be plugged into the electrical energy switching device 11, and in the present invention, the positive electrodes 12a, 13a and the negative electrodes 12b, 13b have at least 3 arrangement structures.

[0072] See also Figures 1 to 4 As shown, the power switching device 11 comprises a housing 111 , a plug-in unit 112 accommodated in the housing 111 , and a power switching assembly 113 adjustably connected to the plug-in unit 112 .

[0073] Further, the shell 111 is provided with a receiving space (not labeled) for receiving the plug-in 112 and the electric energy switching assembly 113. The plug-in 112 includes a first plug-in 1121 and a second plug-in 1122 for electrically connecting the first energy unit and the second energy unit, and an output end 1123 for realizing electric energy output, and the first plug-in 1121, the second plug-in 1122 and the output end 1123 are all connected to be installed in the receiving space.

[0074] Specifically, the first plug-in 1121 and the second plug-in 1122 are both provided with a positive terminal (1121a, 1122a) and a negative terminal (1121b, 1122b), the output end 1123 is provided with a positive output 1123a and a negative output 1123b, and the output end 1123 is connected with the first plug-in 1121 and the second plug-in 1122 respectively, that is, the positive terminal 1121a in the first plug-in 1121 or the positive terminal 1122a in the second plug-in 1122 is electrically connected with the positive output 1123a in the output end 1123, and the negative terminal 1121b in the first plug-in 1121 or the negative terminal 1122b in the second plug-in 1122 is electrically connected with the negative output 1123b in the output end 1123, so as to ensure that the power supply device 200 connected to the first plug-in 1121 and the second plug-in 1122 completes the output of electric energy through the output end 1123.

[0075] In a preferred embodiment of the present application, the positive / negative terminals 1121a, 1122a, 1121b, 1122b in the first plug-in 1121 and the second plug-in 1122 are all male plug blades arranged in a sheet shape, and the end of each male plug blade is located on the same straight line, and the two terminals with the same polarity in the first plug-in 1121 and the second plug-in 1122 are arranged side by side; further, the output end 1123 is a female plug terminal arranged substantially parallel to the first plug-in 1121 and the second plug-in 1122, and the output end 1123 is arranged on different two side walls of the shell 111 from the first plug-in 1121 and the second plug-in 1122; so as to facilitate the connection of the first plug-in 1121, the second plug-in 1122 and the output end 1123.

[0076] Of course, in other embodiments of the present application, the positive terminals 1121a, 1122a and the negative terminals 1121b, 1122b in the first plug-in 1121 and the second plug-in 1122 can also be arranged in various forms different from the straight line arrangement, such as front and rear arrangement or up and down arrangement, and the arrangement shape of the first plug-in 1121, the second plug-in 1122 and the output end 1123 can be adjusted according to the specific structure of the electric energy switching assembly 113; that is, in the present application, the arrangement form and the arrangement form of the first plug-in 1121, the second plug-in 1122 and the output end 1123 can be selected according to actual needs.

[0077] The electric energy switching assembly 113 comprises a switching member 114 and a control member 115. The switching member 114 is used to electrically connect / disconnect the first plug-in 1121 and the second plug-in 1122 and can switch the coupling form of the first plug-in 1121 and the second plug-in 1122. Specifically, the switching member 114 is accommodated in the shell 111, and the switching member 114 is accommodated in the shell 111 and can slide in the shell 111 and move between the first position and the second position under the push / pull action of the control member 125, so as to further adjust the coupling form of the first plug-in 1121 and the second plug-in 1122.

[0078] Please refer to Figure 3 and Figure 4 The electric energy switching device 11 of the embodiment one of the present application is shown in the drawings. In the embodiment, the switching member 114 is a conductive switching member capable of electrical connection, the control member 115 comprises a switching button 116 penetrating through the shell 111 and a trigger portion 117 arranged on the switching button 116. In the embodiment, the trigger portion 117 is formed by extending outward from one end of the switching button 116 accommodated in the accommodation space in a direction perpendicular to the direction of plugging the electric energy switching device 11 with the energy unit (i.e., the plugging direction), and the trigger portion 117 is symmetrically arranged about the central axis of the switching button 116.

[0079] Specifically, the control member 115 has an initial position and switching positions corresponding to the first position and the second position. The switching position of the control member 115 when the switching member 114 is controlled to be in the first position is defined as the first switching position, and the switching position when the switching member 114 is controlled to be in the second position is defined as the second switching position.

[0080] In the present application, the trigger portion 117 is arranged in a substantially "day" shape and has a first trigger portion 1171 and a second trigger portion 1172 extending perpendicular to the plugging direction and parallel to each other. The switching member 114 is arranged on the first trigger portion 1171 to be switched between the first position and the second position under the driving of the switching button 116 and the trigger portion 117. The second trigger portion 1172 is provided with an elastic member 1173 on the side away from the first trigger portion 1171. In this way, when the switching button 116 is pushed to control the switching member 114 to be switched between the first position and the second position, the control member 115 can be conveniently returned to the initial position at the first switching position or the second switching position. Preferably, the elastic member 1173 is provided with two and is symmetrically arranged about the central axis of the switching button 116.

[0081] In the embodiment, the switching member 114 is provided with at least two conductive sheets in horizontal plate shape; preferably, the switching member 114 is provided with four conductive sheets arranged side by side along the extension direction of the first trigger portion 1171; and each of the plug-in components 112 in the embodiment has at least two contacts arranged in parallel in front and back along the plug-in direction, preferably, the first plug-in component 1121 includes two negative terminals 1121b and three positive terminals 1121a arranged in staggered manner in left and right along the plug-in direction, and any two of the three positive terminals 1121a are arranged side by side or in parallel; the second plug-in component 1122 includes two positive terminals 1122a and two negative terminals 1122b arranged in staggered manner in left and right along the plug-in direction and in front and back along the plug-in direction (as shown in Figure 5 ); in this way, when the switching member 114 is switched between the first position and the second position under the action of the control member 115, the switching member 114 can electrically connect the contacts on different plug-in components 112, further controlling the coupling form between the plug-in components 112.

[0082] Please refer to Figures 5 to 7 , when the control member 115 is in the first switching position, the switching member 114 is in the first position; at this time, the first switching member 1141 is electrically connected to the negative terminals 1121b, 1122b of the first plug-in component 1121 and the second plug-in component 1122; the second switching member 1142 is electrically connected to the positive terminals 1121a, 1122a of the first plug-in component 1121 and the second plug-in component 1122; the third switching member 1143 is electrically connected to the positive terminal 1121a of the first plug-in component 1121 and the positive output 1123a of the output end 1123; and the fourth switching member 1144 is electrically connected to the negative terminal 1122b of the second plug-in component 1122 and the negative output 1123b of the output end 1123.

[0083] At this time, the first energy unit and the second energy unit are connected in parallel through the switching member 114, and further realize the output of the first voltage (i.e. nV) energy through the output end 1123.

[0084] Please refer to Figure 6 , Figure 8 , when the control member 115 is in the second switching position, the switching member 114 is in the second position; at this time, the first switching member 1141 is electrically connected to the negative terminal 1121b of the first plug-in component 1121 and the positive terminal 1121a of the second plug-in component 1122; the second switching member 1142 is in the blank position and is not electrically connected to any positive or negative terminal; the third switching member 1143 is electrically connected to the positive terminal 1121a of the first plug-in component 1121 and the positive output 1123a of the output end 1123; and the fourth switching member 1144 is electrically connected to the negative terminal 1122b of the second plug-in component 1122 and the negative output 1123b of the output end 1123.

[0085] At this time, the first energy unit and the second energy unit are connected in series through the switching component 114 , and further implement the output of a high voltage (ie, 2 nV) through the output terminal 1123 .

[0086] See also Figures 9 to 12 As shown, the electric energy storage system of embodiment 2 of the present invention has a structure substantially the same as that of the electric energy storage system of embodiment 1, and the difference lies in the change in the structure of the electric energy switching device 12. The following description will describe in detail the different structural positions in the electric energy storage device, and the same or similar parts will not be repeated here.

[0087] In this embodiment, in this embodiment, the switching member 124 is a conductive switching member that can be electrically connected, and the control member 125 includes a switching button 126 that passes through the shell 121 and a trigger portion 127 corresponding to the switching button 126. Furthermore, the trigger portion 127 is extended along the plug-in direction, and has a first trigger portion 1271 and a second trigger portion 1272 that are parallel to each other for fixedly connecting the switching member 124, and the first trigger portion 1271 and the second trigger portion 1272 are connected by a connecting arm (unnumbered) so that the trigger portion 127 is arranged in an "I" shape. The shell 121 is provided with a sliding groove for accommodating the connecting arm, which further enables the control member 125 to drive the switching member 124 to slide between the first position and the second position. Preferably, an elastic component 1273 is also provided on the first trigger part 1271, and the elastic component 1273 is arranged on the side of the first trigger part 1271 away from the second trigger part 1272. Such an arrangement can facilitate the resetting of the trigger part 127 and the pushing and pulling of the control component 125, further improving the practicality of the energy storage system.

[0088] Furthermore, the switching member 124 has a first switching member 1241, a second switching member 1242 and a third switching member 1243 arranged on the first trigger portion 1271; the first switching member 1241, the second switching member 1242 and the third switching member 1243 are arranged opposite to each other, and preferably, the first switching member 1241, the second switching member 1242 and the third switching member 1243 are all arranged in a "U" shape.

[0089] In the embodiment, the control member 125 has at least a first switching position corresponding to the first position and a second switching position corresponding to the second position. When the control member 125 is in the first switching position, the switching member 124 is in the first position; at this time, the first switching member 1241 is electrically connected to the positive terminal 1221a, 1222a in the first plug-in unit 1221 and the second plug-in unit 1222; the second switching member 1242 is electrically connected to the negative terminal 1221b, 1222b in the first plug-in unit 1221 and the second plug-in unit 1222; and the third switching member 1243 is in a free state.

[0090] Further, the positive output 1223a in the output terminal 1223 is electrically connected to the positive terminal 1221a or the positive terminal 1222a through a wire or other electrically connecting structure; and the negative output 1223b is electrically connected to the negative terminal 1221b or the negative terminal 1222b through a wire or other electrically connecting structure; so that the first energy unit and the second energy unit are connected in parallel, and a low-voltage (i.e. nV) output is realized through the output terminal 1223 (as shown in Figure 13 、 Figure 14 ).

[0091] When the control member 125 is in the second switching position, the switching member 124 is in the second position; at this time, the first switching member 1241 and the second switching member 1272 are in a free state; and the two ends of the third switching member 1243 are connected to the negative terminal 1221b of the first plug-in unit 1221 and the positive terminal 1222a of the second plug-in unit 1222 respectively.

[0092] Further, the positive output 1223a in the output terminal 1223 is electrically connected to the positive terminal 1221a or the positive terminal 1222a through a wire or other electrically connecting structure; and the negative output 1223b is electrically connected to the negative terminal 1221b or the negative terminal 1222b through a wire or other electrically connecting structure; so that the first energy unit and the second energy unit are connected in parallel, and a low-voltage (i.e. nV) output is realized through the output terminal 1223 (as shown in Figure 15 .

[0093] Please refer to Figure 16 and in combination with Figure 2 , for the electric energy storage system in the third embodiment of the present application, the electric energy storage system in the embodiment has an electric energy switching device 13 different from those in the first and second embodiments, please refer to Figures 17 to 19 , in the embodiment, the control member 135 includes a switching button 136 penetrating through the shell 131 and a triggering part 137 corresponding to the switching button 136, and the switching member 134 is connected to the triggering part 137 and is a conductive switching member capable of electrically connecting.

[0094] Specifically, the switching button 136 can drive the trigger portion 137 to slide left and right in a direction perpendicular to the plugging direction, and further drive the switching member 134 connected to the trigger portion 137 to switch between the first position and the second position. In the embodiment, the switching button 136 has a sliding block 1361 for connecting the trigger portion 137, and preferably, the sliding block 1361 is provided separately from the switching button 136 to facilitate the assembly of the electric energy switching device 13. Of course, in other embodiments of the present application, the sliding block 1361 can also be integrally formed with the switching button 136.

[0095] The trigger portion 137 includes a first trigger portion 1371 and a second trigger portion 1372 arranged in parallel, and each of the trigger portions 137 has a protrusion (not numbered) for connecting the sliding block 1361; the sliding block 1361 is provided with a receiving groove (not numbered) corresponding to the protrusion, and the receiving groove is arranged left and right in the plugging direction to make the first trigger portion 1371 and the second trigger portion 1372 arranged left and right in the sliding direction of the switching button 136; further, the two ends of each trigger portion 137 are connected with an elastic member 1373, so that the dials of the control member 135 can be facilitated.

[0096] The switching member 134 has a first switching member 1341 and a second switching member 1342 connected to the first trigger portion 1371, and a third switching member 1343, a fourth switching member 1344, and a fifth switching member 1345 connected to the second trigger portion 1372, and preferably, the first switching member 1341, the second switching member 1342, and the fourth switching member 1344 each have a connection portion (not numbered) arranged in a "U" shape or substantially in a "U" shape for connecting the positive and negative terminals 1321a, 1322a, 1321b, 1322b, and the third switching member 1343 and the fifth switching member 1345 are each arranged in a sheet shape.

[0097] In the embodiment, the control member 135 also has at least a first switching position corresponding to the first position and a second switching position corresponding to the second position. When the control member 135 is in the first switching position, the switching member 124 is in the first position; at this time, the first switching member 1341 electrically connects the positive terminals 1321a, 1322a in the first plug-in component 1321 and the second plug-in component 1322; the second switching member 1342 electrically connects the negative terminals 1321b, 1322b in the first plug-in component 1321 and the second plug-in component 1322; the third switching member 1343, the fourth switching member 1344, and the fifth switching member 1345 are in a free state; so that the first energy unit and the second energy unit are connected in parallel, and further through the positive output 1323a and the negative output 1323b in the output end 1323 to realize the output of low voltage (i.e. nV) (for example, 3.7V). Figure 20 、 Figure 21as shown).

[0098] When the control member 135 is in the second switching position, the switching member 134 is in the second position; at this time, the first switching member 1341 and the second switching member 1372 are in the free state; the two ends of the fourth switching member 1344 are connected with the negative terminal 1321b of the first plug-in 1321 and the positive terminal 1322a of the second plug-in 1322 respectively, and the third switching member 1343 is electrically connected with the positive terminal 1321a through the electrically connecting structure such as wire; the fifth switching member 1344 is electrically connected with the negative output 1323b through the electrically connecting structure such as wire; so that the first energy unit and the second energy unit are connected in series, and the output of high voltage (i.e. 2nV) is realized through the output end 1323 (as shown). Figure 22 、 Figure 23 as shown).

[0099] Please refer to Figure 24 and in combination with Figure 2 as shown, the electric energy switching device 14 in the fourth embodiment of the present application has substantially the same structure as the electric energy switching device 13 in the third embodiment, and the only difference is the setting form of the control member 145.

[0100] Please refer to Figures 25 to 27 as shown, the switching button 146 in the control member 145 has two first switching buttons 1461 and second switching buttons 1462 respectively for controlling the movement of the first trigger part 1471 and the second trigger part 1472.

[0101] Specifically, the first switching button 1461 and the second switching button 1462 are respectively arranged at one end of the first trigger part 1471 and the second trigger part 1472 along the vertical plugging direction and are located at the same side of the shell 141. Further, the first trigger part 1471 and the second trigger part 1472 are further provided with the abutting member 148, and the setting of the abutting member 148 can ensure that only one trigger part 147 is driven by the switching button 146 at the same time. In this way, the short circuit of the power tools and the power supply devices connected at both ends of the electric energy switching device 14 caused by the misoperation can be effectively avoided.

[0102] In this embodiment, the control member 145 has an initial position, a first switching position corresponding to the first position, and a second switching position corresponding to the second position. When the control member 145 is in the initial position, the switching member 144 is arranged separately from the positive and negative terminals 1421a, 1422a, 1421b, 1422b, and the first energy unit and the second energy unit are both in the open circuit state, and the output end 1423 does not output electric energy to the outside.

[0103] When the control member 145 is in the first switching position, the switching member 144 is in the first position; at this time, the first energy unit and the second energy unit are connected in parallel through the first switching member 1441 and the second switching member 1442 and the cooperation of the positive and negative terminal 1421a, 1422a, 1421b, 1422b, and further through the positive output 1423a and the negative output 1423b in the output terminal 1423 to realize the output of low voltage (i.e. nV) (as shown in Figure 28 、 Figure 29 ).

[0104] When the control member 145 is in the second switching position, the switching member 144 is in the second position; at this time, the first energy unit and the second energy unit are connected in series through the fourth switching member 1444 and the cooperation of the positive and negative terminal 1521b, 1522a, and further through the third switching member 1443, the fifth switching member 1445, the positive terminal 1521a, the negative terminal 1522b and the cooperation of the positive and negative output 1423a, 1423b in the output terminal 1423 to realize the output of high voltage (i.e. 2nV) (as shown in Figure 30 、 Figure 31 ).

[0105] Please refer to Figure 32 and in combination with Figure 2 , for the electric energy storage system in the fifth embodiment of the present application, the electric energy storage system of the present embodiment has the electric energy switching device 15 which is different from the electric energy storage system, in the present embodiment, the electric energy switching device 15 has the switching member 154 for separating the adjacent two plug-in units 152, and the switching member 154 is the insulating switching member made of insulating material.

[0106] Please refer to Figures 33 to 35 , the control member 155 includes the switching button 156 penetrating the shell 151 and the trigger part 157 corresponding to the switching button 156, wherein the trigger part 157 is slidingly accommodated in the shell 151 and can slide in the plug-in direction under the driving of the switching button 156, preferably, the trigger part 157 is provided with the elastic member 1571 at the end opposite to the switching button 156, so that the trigger part 157 can conveniently and quickly drive the switching member 154 to switch between the first position and the second position under the joint action of the switching button 156 and the elastic member 1571.

[0107] In the embodiment, the switching member 154 has a first switching member 1541 and a second switching member 1542 arranged in parallel on both sides of the moving direction (i.e. the plug-in direction) of the trigger part 157; further, the positive and negative terminals arranged adjacently in the plug-in member 152, i.e. the positive terminal 1521a and the positive terminal 1522a, the positive terminal 1522a and the negative terminal 1521b, and the negative terminal 1521b and the negative terminal 1522b are all provided with connecting protrusions for electrically connecting with each other, and in the embodiment, the connecting protrusions between the positive terminal 21a and the positive terminal 22a and the negative terminal 21b and the negative terminal 22b are located on the same straight line, and are arranged in staggered manner with the connecting protrusions between the positive terminal 22a and the negative terminal 21b.

[0108] Similarly, the control member 155 in the embodiment has a first switching position corresponding to the first position and a second switching position corresponding to the second position. When the control member 155 is in the first position, the switching member 154 is separated from the first plug-in member 1521 and the second plug-in member 1522, at this time, the positive terminal 1521a and the positive terminal 1522a, the negative terminal 1521b and the negative terminal 1522b are electrically connected with each other through the connecting protrusions, and the connecting protrusions between the positive terminal 1522a and the negative terminal 1521b are separated from each other, so as to realize parallel connection between the first energy unit and the second energy unit, and further realize low voltage (i.e. nV) output through the positive output 1523a and the negative output 1523b in the output end 1523 (e.g. Figure 36 、 Figure 37 ).

[0109] When the control member 155 is in the second switching position, the switching member 154 is in the second position; at this time, the first switching member 1541 and the second switching member 1542 are respectively moved to the positive terminal 1521a and the positive terminal 1522a, the negative terminal 1521b and the negative terminal 1522b under the driving of the switching button 156 and the trigger part 157, so as to separate the positive terminal 1521a and the positive terminal 1522a and the negative terminal 1521b and the negative terminal 1522b; at this time, the connecting protrusions between the positive terminal 1522a and the negative terminal 1521b are electrically connected with each other under the deformation action, so as to realize series connection between the first energy unit and the second energy unit, and further realize high voltage (i.e. 2nV) output through the positive output 1523a and the negative output 1523b in the output end 1523 (e.g. Figure 38 、 Figure 39 ).

[0110] Please refer to Figure 40 and combine with Figure 2As shown in the figure, the electric energy storage system in the sixth embodiment of the present application has substantially the same structure as the electric energy switching device 15 in the foregoing electric energy storage system, and the only difference is that the arrangement of the plug-in units 162 and the setting structure of the control member 165 in the electric energy switching device 16 are different.

[0111] Please refer to the figure Figure 41 As shown in the figure, in the present embodiment, the first plug-in unit 1621 and the second plug-in unit 1622 are arranged in the form of the positive terminal 1621a, the negative terminal 1621b, the positive terminal 1622a and the negative terminal 1622b, and further, the positive terminal 1621a and the positive terminal 1622a, and the negative terminal 1621b and the negative terminal 1622b are provided with the connecting protrusions for electrically connecting with each other.

[0112] The switching member 164 has the first switching member 1641 and the second switching member 1642 which are arranged in parallel on both sides of the moving direction (i.e. the plug-in direction) of the trigger part 167, and the third switching member 1643 which is located between the first switching member 1641 and the second switching member 1642; and in the present embodiment, the first switching member 1641 and the second switching member 1642 are made of insulating material, and the third switching member 1643 is made of conductive material.

[0113] The control member 165 includes the switching button 166 which penetrates through the housing 161, and the trigger part 167 which is arranged correspondingly to the switching button 166, wherein the trigger part 167 is slidingly accommodated in the housing 161 and can slide along the plug-in direction under the driving of the switching button 166, and preferably, the end of the trigger part 167 which is arranged oppositely to the switching button 166 is provided with the elastic member 1671, so that the trigger part 167 can conveniently and quickly drive the switching member 164 to switch between the first position and the second position under the joint action of the switching button 166 and the elastic member 1671.

[0114] Similarly, the control member 165 in the present embodiment has the first switching position which is arranged correspondingly to the first position, and the second switching position which is arranged correspondingly to the second position. When the control member 165 is in the first position, the switching member 164 is separated from the first plug-in unit 1521 and the second plug-in unit 1522, at this time, the positive terminal 1621a and the positive terminal 1622a, and the negative terminal 1621b and the negative terminal 1622b are electrically connected with each other through the connecting protrusions, so that the first energy unit and the second energy unit are connected in parallel, and further, the low voltage (i.e. nV) output is realized through the positive output 1623a and the negative output 1623b in the output terminal 1623.

[0115] When the control member 165 is in the second switching position, the switching member 164 is in the second position; at this time, the first switching member 1641 is inserted between the positive terminal 1621a and the positive terminal 1622a; the second switching member 1642 is inserted between the negative terminal 1621b and the negative terminal 1622b, to separate the positive terminal 1621a and the positive terminal 1622a and the negative terminal 1621b and the negative terminal 1622b; further, the third switching member 1643 abuts on the negative terminal 1621b and the positive terminal 1622a, to electrically connect the negative terminal 1621b and the positive terminal 1622a, so that the first energy unit and the second energy unit are connected in series, and further, the high voltage (i.e. 2nV) output is realized through the positive output 1623a and the negative output 1623b in the output terminal 1623.

[0116] Referring to Fig. 7, a structural schematic diagram of an electric energy storage system according to an embodiment of the present application is shown. In this embodiment, the electric energy storage system has substantially the same structure as the electric energy storage system described above, and the only difference is that the positive electrodes 12a', 13a' and the negative electrodes 12b', 13b' in the first energy unit and the second energy unit are arranged in an up-down manner. Figure 42 Referring to Fig. 8, a structural schematic diagram of an electric energy storage system according to another embodiment of the present application is shown. In this embodiment, the electric energy storage system has substantially the same structure as the electric energy storage system described above, and the only difference is that the positive electrodes 12a", 13a" and the negative electrodes 12b", 13b" in the first energy unit and the second energy unit are arranged in a front-back manner along the insertion direction of the energy unit by the electric energy switching device 11, and the negative electrodes 12b", 13b" are parallel to the positive electrodes 12a", 13a".

[0117] Figure 43 Referring to Fig. 8, a structural schematic diagram of an electric energy storage system according to another embodiment of the present application is shown. In this embodiment, the electric energy storage system has substantially the same structure as the electric energy storage system described above, and the only difference is that the positive electrodes 12a", 13a" and the negative electrodes 12b", 13b" in the first energy unit and the second energy unit are arranged in a front-back manner along the insertion direction of the energy unit by the electric energy switching device 11, and the negative electrodes 12b", 13b" are parallel to the positive electrodes 12a", 13a".

[0118] Further, in the embodiment seven and the embodiment eight, the arrangement form of the plug-in 112 in the electric energy switching device 11 can be adjusted according to the arrangement form of the positive and negative electrodes in the first energy unit and the second energy unit, as long as the first energy unit and the second energy unit are connected in parallel when the electric energy switching device 11 is in the first position, and the first energy unit and the second energy unit are connected in series when the electric energy switching device 11 is in the second position, i.e. the arrangement form of the plug-in 112 in the electric energy switching device 11 can be adjusted according to the actual situation, which is not limited herein.

[0119] ​It should be noted that in the specific embodiment of the electric energy storage system, only the electric energy switching device 11 is exemplified, and it should be understood that the electric energy switching device 11 can be any of the electric energy switching devices 11, 12, 13, 14, 15, and 16 in the foregoing embodiments one to six for realizing electric energy switching, and the specific setting form of the plug-in 112, 122, 132, 142, 152, and 162 can be selected according to the actual situation.

[0120] The present application also provides an electric power tool (not shown). The electric power tool includes a tool body and an electric energy switching device 11 for electrically connecting the tool body and the power supply device 200.

[0121] In the present application, the tool body has a plug-in part for connecting the electric energy switching device 11, the plug-in part has two connection pieces with opposite polarities, and the two connection pieces with opposite polarities are respectively connected with the positive output 1123a and the negative output 1123b in the output 1123 in the electric energy switching device 11 with the same polarity, so as to ensure the normal input of the working voltage.

[0122] In the present application, the rated voltage of the electric power tool is nV, and the electric power tool can be connected with different power supply devices with energy units with output voltages of n / 2V or nV through the electric energy switching device 11.

[0123] Specifically, the electric power tool can be connected with a dual-voltage power supply device or a single-voltage power supply device with two energy units with output voltages of n / 2V, and in the present embodiment, each energy unit with an output voltage of n / 2V has two output electrodes with opposite polarities.

[0124] Further, when the electric power tool is electrically connected with the dual-voltage power supply device / single-voltage power supply device through the electric energy switching device 11, the electric energy switching device 11 is electrically connected with the output electrodes of the two energy units with output voltages of n / 2V through the positive terminal 1121a and the negative terminal 1121b in the first plug-in 1121 and the positive terminal 1122a and the negative terminal 1122b in the second plug-in 1122, at this time, the switching button 116 can be controlled to control the switching member 114 to move to the second position, so that the negative terminal 1121b of the first plug-in 1121 and the positive terminal 1122a in the second plug-in 1122 are electrically connected through the switching member 114; to control the two energy units with output voltages of n / 2V to be connected in series, the voltage output by the dual-voltage power supply device or the single-voltage power supply device is nV, which meets the rated voltage of the tool body and ensures the normal operation of the electric power tool.

[0125] The electric power tool can also be connected to a dual-voltage power supply device or a single-voltage power supply device having two energy units with an output voltage of nV, and each energy unit with two output electrodes with opposite polarities.

[0126] Specifically, when the electric power tool is connected to the dual-voltage power supply device / single-voltage power supply device through the electric energy switching device 11, the switching button 116 can be used to control the switching member 114 to move to the first position, at which time the positive terminal 1121a of the first plug-in 1121 and the positive terminal 1122a of the second plug-in 1122, and the negative terminal 1121b of the first plug-in 1121 and the negative terminal 1122b of the second plug-in 1122 are electrically connected through the switching member 114; further, the two energy units with an output voltage of nV are connected in parallel, the voltage output by the dual-voltage power supply device or the single-voltage power supply device is nV, which meets the rated voltage of the tool body and ensures the normal operation of the electric power tool.

[0127] The electric power tool can also be connected to a single-voltage power supply device having one energy unit with an output voltage of nV, and the energy unit has two output electrodes with opposite polarities.

[0128] Specifically, when the electric power tool is connected to the single-voltage power supply device through the electric energy switching device 11, the switching button 116 can be used to control the switching member 114 to move to the second position, at which time the positive terminal 1122a of the second plug-in 1122 is electrically connected to the negative terminal 1121b of the first plug-in 1121 through the switching member 114; further, the electric energy switching device 11 is electrically connected to the two terminals with opposite polarities and arranged side by side and close to each other in the first plug-in 1121 and the second plug-in 1122, such as the positive terminal 1122a of the second plug-in 1122 and the negative terminal 1121b of the first plug-in 1121 in the electric energy switching device 11 are electrically connected to the output electrodes of the energy unit with an output voltage of nV, and nV voltage output is performed, which meets the rated voltage of the tool body and ensures the normal operation of the electric power tool. Figure 2

[0129] Please refer to Figure 16 As shown in FIG. 1, an electric power tool system 20 provided by the present application includes an electric energy storage system and an electric tool 201, wherein the electric tool 201 is used to perform corresponding work tasks, and the electric energy storage system is used to provide corresponding electric power for the electric tool 201, so as to ensure the normal operation of the electric power tool system 20.

[0130] In the present application, the electric tool 201 has a plug 202 for connecting the electric energy storage system, and in the present application, the electric tool 201 can be a low-voltage electric tool for accepting low-voltage input, or a high-voltage electric tool for accepting high-voltage input.

[0131] ​Further, the electric energy storage system completes the switching of the output voltage through the electric energy switching device 11 arranged thereon, so that the electric tool system 20 can match the low-voltage electric tool or the high-voltage electric tool, and the practicability of the electric tool system 20 is effectively improved.

[0132] It should be noted that, in the process of describing the structure of the electric tool and the electric tool system 20 in the present specification, the electric energy switching device 11 includes the aforementioned electric energy switching device 11, the electric energy switching device 12, and all electric energy switching devices without departing from the spirit and scope of the technical scheme of the present application, i.e., in the process of describing the structure of the electric tool and the electric tool system 20 in the present specification, the electric energy switching device 11 is only taken as an example for illustration, but it should not be limited thereto.

[0133] In summary, the electric energy switching device 11, 12, 13, 14, 15, 16 can switch between the first position and the second position through the switching member 114, 124, 134, 144, 154, 164 and the plug 112, 122, 132, 142, 152, 162 electrically connected with the switching member 114, 124, 134, 144, 154, 164, and the electric energy storage system using the electric energy switching device 11, 12, 13, 14, 15, 16 can realize the output of two different voltages by adjusting the coupling form between different plugs 112, 122, 132, 142, 152, 162; at the same time, the electric tool having the electric energy switching device 11, 12, 13, 14, 15, 16 can match the power supply device 202 having different output voltages, effectively increasing the application range of the electric energy storage system / electric tool / electric tool system 20 using the electric energy switching device 11, 12, 13, 14, 15, 16, and reducing the cost.

[0134] The above embodiments are only used to illustrate the technical scheme of the present application but not limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical scheme of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical scheme of the present application.

Claims

1. An electric energy switching device comprising a plug for connecting to a power supply device, and the plug having an output terminal for outputting electric energy to the outside, characterized by: The electric energy switching device further comprises an electric energy switching assembly electrically connected with the plug-in units, the electric energy switching assembly has switching members for switching the coupling form of the plug-in units, the switching members can slide between a first position and a second position to switch the coupling form between the plug-in units by changing the position of the switching members; the electric energy switching assembly comprises a control member, the control member comprises a switching button and a trigger part arranged corresponding to the switching button, the switching members are connected with the trigger part, the switching members move between the first position and the second position under the push / pull action of the switching button and the trigger part to connect / detach different plug-in units to change the coupling form between the plug-in units; The switching members are at least two, and the switching members are conductive switching members or insulating switching members or a combination of both, the plug-in units have positive terminals and negative terminals; when the switching members are conductive switching members, the conductive switching members electrically connect the positive terminals and / or the negative terminals of different plug-in units in the first position and the second position; when the switching members are insulating switching members, the insulating switching members electrically separate the positive terminals and / or the negative terminals of different plug-in units in the second position.

2. The electrical energy switching device of claim 1, wherein: The electric energy switching device has a housing, and the control member is accommodated in the housing.

3. The electrical energy switching device of claim 2, wherein: The switching members can electrically connect different plug-in units, multiple structurally different switching members can be connected on the same control member at the same time, and multiple switching members can move with the control member to connect different electronic pairs at the same time / separately.

4. The electrical energy switching device of claim 3, wherein: The switching button is arranged on the housing, and the switching members are arranged in parallel and side by side on the trigger part.

5. The electrical energy switching device of claim 3, wherein: The switching button is arranged through the housing, and the switching members are arranged corresponding to the two sides of the trigger part.

6. The electrical energy switching device of claim 3, wherein: The switching button is arranged through the housing, the trigger part is arranged with two and connected with the switching button respectively, the two trigger parts are arranged in parallel, and the switching members on different trigger parts are arranged staggered.

7. The electrical energy switching device of claim 6, wherein: The switching button is arranged with two, and the two trigger parts are arranged one by one corresponding to the switching button.

8. The electrical energy switching device of claim 2, wherein: The insulating switching members are used to separate adjacent two plug-in units.

9. The electrical energy switching device of claim 1, wherein: The electric energy switching device comprises a first plug-in unit and a second plug-in unit for connecting the power supply device and an output end for connecting the electric tool, when the switching members are in the second position, two terminals with different polarities in the first plug-in unit and the second plug-in unit are electrically connected through the switching members, and the remaining two terminals with different polarities are respectively electrically connected with two terminals with the same polarity in the output end.

10. An electrical energy storage system comprising a first energy unit and a second energy unit each having an output voltage of nV, characterized in that: The application also discloses an electric energy switching device for connecting two groups of energy units, which has a first position and a second position switched by push / pull, and can switch the series-parallel connection mode of the first energy unit and the second energy unit by position transformation to output two different voltages; the electric energy switching device comprises a plug for connecting the first energy unit and the second energy unit, and the plug has an output end for outputting electric energy to the outside world; the electric energy switching device further comprises an electric energy switching assembly electrically connected with the plug, and the electric energy switching assembly has a switching member for switching the coupling mode of the plug; the switching member can slide between the first position and the second position to switch the coupling mode between the plugs by changing the position of the switching member; the electric energy switching assembly comprises a control member, which comprises a switching button and a trigger part arranged correspondingly with the switching button; the switching member is connected with the trigger part, and the switching member moves between the first position and the second position under the push / pull action of the switching button and the trigger part to connect / detach different plugs to change the coupling mode between the plugs. The switching member is at least provided with two, and the switching member is a conductive switching member or an insulating switching member or a combination of both; the plug has a positive terminal and a negative terminal; when the switching member is a conductive switching member, the conductive switching member electrically connects the positive terminal and / or the negative terminal of different plugs in the first position and the second position; when the switching member is an insulating switching member, the insulating switching member electrically separates the positive terminal and / or the negative terminal of different plugs in the second position.

11. The electrical energy storage system of claim 10, wherein: The first energy unit and the second energy unit each have positive and negative electrodes for realizing energy output, and the positive and negative electrodes have at least three arrangement structures; the switching member is used for switching the coupling mode of the positive and negative electrodes of the first energy unit and the second energy unit.

12. The electrical energy storage system of claim 11, wherein: The switching member has a first position for connecting the first energy unit and the second energy unit in parallel; when the switching member is in the first position, the switching member realizes the low-voltage output of the electric energy storage system by connecting the electrodes with the same polarity in the first energy unit and the second energy unit respectively.

13. The electrical energy storage system of claim 11, wherein: The switching member has a second position for connecting the first energy unit and the second energy unit in series; when the switching member is in the second position, the switching member realizes the high-voltage output of the electric energy storage system by connecting two electrodes with opposite polarities in the first energy unit and the second energy unit.

14. A power tool characterized by: The electric power tool uses the electric energy switching device in any one of claims 1-9, and the electric power tool cooperates with the electric energy storage system through the electric energy switching device so that the output voltage output by the electric energy storage system can match the rated voltage of the electric power tool.

15. A power tool system comprising a power tool and an electrical energy storage system providing power to the power tool, characterized in that: The electric energy storage system is the electric energy storage system as claimed in any one of claims 10 to 13, the electric energy storage system has an electric energy switching device, and the electric energy storage system is matched with the electric power tool through the electric energy switching device, so that one of two different output voltages outputted by the electric energy storage system can match the rated voltage of the electric power tool.

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