CN111243879B - Power switching component and tool and system having the same - Google Patents
Power switching component and tool and system having the sameInfo
- Publication number
- CN111243879B CN111243879B CN202010186739.1A CN202010186739A CN111243879B CN 111243879 B CN111243879 B CN 111243879B CN 202010186739 A CN202010186739 A CN 202010186739A CN 111243879 B CN111243879 B CN 111243879B
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- CN
- China
- Prior art keywords
- switching
- plug
- component
- electric energy
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
本发明提供了一种电能切换组件及具有该电能切换组件的工具及系统。一种电能切换装置，包括用于连接供电装置的插件，且所述插件具有向外界进行电能输出的输出端，还包括与插件电性连接的电能切换组件，所述电能切换组件具有用于连接不同的所述插件的切换构件，所述切换构件可在第一位置和第二位置之间转动，以通过改变所述切换构件的抵接位置切换不同的所述插件之间的耦合形式。本发明的电能切换装置能够实现两种电压切换，使得使用该电能切换装置的电动储存装置、电动工具及系统使具有该电能切换装置的电动工具匹配多种具有不同输出电压的供电装置，有效增加了使用该电能切换装置的电能储存系统/电动工具/电动工具系统的适用范围，降低了成本。
The present invention provides an electric energy switching component and a tool and system having the electric energy switching component. An electric energy switching device includes a plug-in for connecting to a power supply device, and the plug-in has an output end for outputting electric energy to the outside world, and also includes an electric energy switching component electrically connected to the plug-in, the electric energy switching component has a switching member for connecting different plug-ins, and the switching member can be rotated between a first position and a second position to switch the coupling form between different plug-ins by changing the abutment position of the switching member. The electric energy switching device of the present invention can realize two voltage switching, so that the electric storage device, electric tool and system using the electric energy switching device can match the electric tool having the electric energy switching device with a variety of power supply devices with different output voltages, effectively increasing the scope of application of the electric energy storage system/electric tool/electric tool system using the electric energy switching device and reducing the cost.
Description
Technical Field
The invention relates to an electric energy switching assembly, and a tool and a system with the same, and belongs to the technical field of garden tools.
Background
In the garden machine and power tool industries, electric tools usually have a rated working voltage, that is, tools with different rated voltages need battery packs with different rated voltages to supply power, and in order to solve the above problems, a battery pack capable of realizing double-voltage switching is already present in the existing market.
In the prior art, the voltage regulating structures of the double-voltage battery pack are concentrated on the battery pack, and the voltage is selected through different plugs (male plugs) outside, so that the battery pack outputs different voltages.
In the field of larger-volume batteries or backpack batteries, it is inconvenient to realize different voltage outputs by different male plugs at this time, because the tools are not directly connected with the batteries by power lines.
In view of the foregoing, there is a need for a new power switching device suitable for switching power, and tools and systems using the same, which solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an electric energy switching device capable of realizing two types of voltage switching, and an electric storage electric tool and an electric storage electric system using the electric energy switching device.
To achieve the above object, the present invention provides an electrical energy switching apparatus including a plug-in unit for connecting to a power supply apparatus and having an output end for outputting electrical energy to the outside, and an electrical energy switching assembly electrically connected to the plug-in unit, the electrical energy switching assembly having a switching member for connecting different ones of the plug-ins, the switching member being rotatable between a first position and a second position to switch a coupling form between the different ones of the plug-ins by changing an abutting position of the switching member.
As a further improvement of the invention, the electric energy switching assembly comprises a shell and a control member accommodated in the shell, wherein the control member can rotate in the shell to drive the switching member to move between a first position and a second position, and the control member is provided with an initial position and a switching position corresponding to the first position and the second position.
As a further improvement of the invention, the electrical energy switching assembly further comprises an intermediate connection member for connecting the switching member and the insert, and the switching member is rotatably connected to the intermediate connection member.
As a further improvement of the invention, the control member is a rocker member arranged in a rocker switch structure, and comprises a switching button arranged on the shell, a trigger part arranged corresponding to the switching button and a driving part propped against the switching member, wherein the trigger part is positioned in the shell in a rotating way through a rotating shaft, the rotating shaft axis of the trigger part and the rotating shaft axis of the switching member are positioned in the same or two parallel planes, and the plane of the switching member is intersected with the plane of the intermediate connecting member.
As a further improvement of the invention, the control member comprises a switching button arranged on the shell and a trigger part arranged corresponding to the switching button, two switching members are symmetrically arranged on two sides of the trigger part, and the plane of the two switching members is parallel to the plane of the middle connecting member.
As a further improvement of the invention, the plug-in unit 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 utilization tool, when the switching member is located at the first position, two terminals with the same polarity in the first plug-in unit and the second plug-in unit are electrically connected through the switching member, and are further electrically connected with terminals with the same polarity in the output end.
As a further improvement of the present invention, the plug-in unit includes a first plug-in unit and a second plug-in unit for connecting the power supply device, and an output terminal for connecting the power utilization tool, when the switching member is located at 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 member, and the remaining two terminals with different polarities are electrically connected with two terminals with the same polarity in the output terminal, respectively.
In order to achieve the above object, the present invention provides an electric energy storage system, including a first energy unit and a second energy unit, each of which has an output voltage of nV, and further including an electric energy switching device for connecting two sets of the energy units, wherein the electric energy switching device can switch the serial-parallel connection of the first energy unit and the second energy unit by having a first position and a second position switched by rotation, and the electric energy switching device can switch the serial-parallel connection of the first energy unit and the second energy unit by position conversion so as to output two different voltages.
As a further improvement of the invention, the first energy unit and the second energy unit are provided with a positive electrode and a negative electrode for realizing energy output, the positive electrode and the negative electrode are provided with at least 3 arrangement structures, and the electric energy switching device is provided with a switching component for switching the positive electrode and the negative electrode coupling forms of the first energy unit and the second energy unit.
As a further development of the invention, the switching member has a first position for connecting the first energy unit and the second energy unit in parallel, the switching member realizing a low voltage output of the electrical energy storage system by connecting electrodes of the same polarity in the first energy unit and the second energy unit, respectively, when the switching member is in the first position.
As a further development of the invention, the switching member has a second position for connecting the first energy unit and the second energy unit in series, the switching member realizing an output of a high voltage of the electrical energy storage system by connecting two electrodes of opposite polarity in the first energy unit and the second energy unit when the switching member is in the second position.
In order to achieve the above object, the present invention provides an electric tool, which is characterized in that the electric tool uses the aforementioned electric energy switching device, and the electric tool cooperates with an electric energy storage system through the electric energy switching device so that an output voltage output by the electric energy storage system can be matched with a rated voltage of the electric tool.
In order to achieve the above object, the present invention provides an electric tool system, including an electric tool and an electric energy storage system for providing electric power for the electric tool, wherein the electric energy storage system is the electric energy storage system, the electric energy storage system has an electric energy switching device, and the electric energy storage system is matched with the electric tool through the electric energy switching device, so that one of two different output voltages output by the electric energy storage system can be matched with a rated voltage of the electric tool.
The electric energy switching device has the beneficial effects that through the arrangement of the switching component capable of being switched between the first position and the second position and the plug-in components electrically connected with the switching component, the electric energy storage system using the electric energy switching device can realize the output of two different voltages by adjusting the coupling form among different plug-in components, and meanwhile, the electric tool with the electric energy switching device can be matched with a plurality of power supply devices with different output voltages, so that the application range of the electric energy storage system/electric tool system using the electric energy switching device is effectively increased, and the cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of an electrical energy storage system according to the present invention.
Fig. 2 is a schematic diagram of the electric energy storage system of fig. 1, with the electric energy switching device and a portion of the cavity omitted.
Fig. 3 is a schematic perspective view of the power switching device of fig. 1 at another angle
Fig. 4 is an exploded view of the power switching device of fig. 3.
Fig. 5 is a schematic diagram of the electrical energy switching assembly of fig. 4 combined with a plug-in unit.
Fig. 6 is a schematic view of the electrical energy switching assembly of fig. 5 in combination with an insert at another angle.
Fig. 7 is a schematic diagram of the power switching assembly, the plug-in unit and the power unit of fig. 5.
Fig. 8 is a schematic perspective view of a second embodiment of an electrical energy storage system according to the present invention.
Fig. 9 is a schematic perspective view of another angle of the power switching device in fig. 8
Fig. 10 is an exploded view of the power switching device of fig. 9.
Fig. 11 is a schematic diagram of the power switching assembly and the plug-in unit in fig. 10.
Fig. 12 is a schematic view of the power switching assembly, the plug-in unit and the power unit of fig. 10.
Fig. 13 is a circuit diagram of the electrical energy storage system with the electrical energy-switching apparatus of fig. 9 in an initial position.
Fig. 14 is a circuit diagram of the electrical energy storage system when the electrical energy-switching apparatus of fig. 9 is in a first position.
Fig. 15 is a circuit diagram of the electrical energy storage system when the electrical energy-switching apparatus of fig. 9 is in a second position.
Fig. 16 is a schematic view of a third embodiment of an electrical energy storage system according to the present invention, wherein the electrical energy switching apparatus and a portion of the cavity are omitted.
Fig. 17 is a schematic diagram of a fourth embodiment of an electrical energy storage system according to the present invention, wherein the electrical energy switching apparatus and a portion of the cavity are omitted.
Fig. 18 is a schematic perspective view of the power tool system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to aspects of the present invention are shown in the drawings, and other details not greatly related to the present invention are omitted.
In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 and 2, an electrical energy storage system according to an embodiment of the invention includes a first energy unit (not numbered), a second energy unit (not numbered), and an electrical energy switching device 11 for achieving electrical energy output.
In the present invention, the voltages of the first energy unit and the second energy unit are nV, the first energy unit has a positive electrode 12a and a negative electrode 12b for outputting electric energy, the second energy unit has a positive electrode 13a and a negative electrode 13b for outputting electric energy, further, the electric energy storage system further comprises a cavity 14 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 14 and are exposed to the outside of the cavity 14 so as to be inserted with the electric energy switching device 11, and the positive electrodes 12a, 13a and the negative electrodes 12b, 13b have at least 3 arrangement structures in the present invention. Referring to fig. 1 to 6, the electric energy switching device 11 is inserted into the cavity 14 and is electrically connected with the first energy unit and the second energy unit through the positive electrode and the negative electrode, the electric energy switching device 11 has a first position and a second position which are adjustable, and when the electric energy switching device 11 is switched between the first position and the second position, the serial-parallel connection mode of the first energy unit and the second energy unit can be switched, so that the electric energy storage system outputs two different voltages.
Referring to fig. 3 to 7, in the present invention, the power switching device 11 includes a housing 111, a plug 112 accommodated in the housing 111, and a power switching assembly 113 adjustably connected to the plug 112.
Further, the housing 111 is provided with a housing space (not numbered) for housing the plug-in 112 and the power 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 terminal 1123 for realizing electric energy output, and the first plug-in 1121, the second plug-in 1122, and the output terminal 1123 are all installed in the accommodating space in a connecting manner.
Specifically, each of the first and second plug-ins 1121 and 1122 has a positive terminal (1121 a, 1122 a) and a negative terminal (1121 b, 1122 b), the output terminal 1123 has a positive output 1123a and a negative output 1123b, and the output terminal 1123 is connected to the first and second plug-ins 1121 and 1122, respectively, i.e., the positive terminal 1121a in the first plug-in 1121 or the positive terminal 1122a in the second plug-in 1122 is electrically connected to the positive output 1123a in the output terminal 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 to the negative output 1123b in the output terminal 1123, 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 power through the output terminal 1123.
In a preferred embodiment of the present invention, the positive/negative terminals 1121a, 1122a, 1121b, 1122b of the first and second plug-ins 1121, 1122 are male plug-ins arranged in a sheet shape, and the ends of each male plug-in tab are positioned on the same straight line, and two terminals of the same polarity of the first and second plug-ins 1121, 1122 are arranged side by side, further, the output terminal 1123 is a female plug-in terminal arranged substantially parallel to the first and second plug-ins 1121, 1122, and the output terminal 1123 is a side wall of the housing 111 different from the first and second plug-ins 1121, 1122 so as to facilitate connection of the first and second plug-ins 1121, 1122 with the output terminal 1123.
Of course, in other embodiments of the present invention, the positive terminals 1121a, 1122a and the negative terminals 1121b, 1122b in the first and second inserts 1121, 1122 may also be arranged in a plurality of arrangements different from a straight arrangement, such as a front-back arrangement or an up-down arrangement, and the arrangement shape of the first and second inserts 1121, 1122 and the output terminal 1123 may be adjusted according to the specific structure of the power switching assembly 113, that is, in the present invention, the arrangement and arrangement of the first and second inserts 1121, 1122 and the output terminal 1123 may be selected according to actual needs.
The power switching assembly 113 includes a switching member 114 and a control member 115. The switching member 114 is used for electrically connecting the first and second plug-ins 1121 and 1122 and can switch the coupling form of the first and second plug-ins 1121 and 1122. Specifically, the switching member 114 is accommodated in the housing 111, and the switching member 114 is rotatably accommodated in the housing 111 by the rotary shaft 1141, and is rotatable about the rotary shaft 1141 and swingable between a first position and a second position by the control member 115, so as to further adjust the coupling form of the first and second inserts 1121 and 1122.
In the present invention, the power switching assembly 113 further includes an intermediate connection member 116 for connecting the switching member 114 with the first plug-in unit 1121, the second plug-in unit 1122 and the output terminal 1123, and the switching member 114 is rotatably connected to the intermediate connection member 116 through the rotation shaft 1141, in the present invention, the intermediate connection member 116 has a plurality of intermediate connection plates for connecting the first plug-in unit 1121, the second plug-in unit 1122 and/or the output terminal 1123, and each of the intermediate connection plates is a metal intermediate connection member made of an electrically conductive metal material, and the switching member 114 is electrically connected to the first plug-in unit 1121, the second plug-in unit 1122 and the output terminal 1123 through the metal intermediate connection member, so as to realize power transmission of the power switching device 11.
In a preferred embodiment of the present invention, the switching member 114 is configured in a plate shape with a certain curvature, and the plate shape with a certain curvature may be configured in a rocker or arc shape, so that the plane of the switching member 114 intersects the plane of the intermediate connecting member 116. In this embodiment, the electrical energy switching assembly 113 controls the switching member 114 to rotate about the rotation shaft 1141, and two ends of the switching member 114 abut against the intermediate connection member 116 and/or the combination of the first and second inserts 1121, 1122 to complete the switching of the coupling form of the first and second inserts 1121, 1122, further, the end of the switching member 114 is provided with a protrusion 1142 for improving the electrical contact performance, and the protrusions 1142 are disposed corresponding to the positive terminals 1121a, 1122a and the negative terminals 1121b, 1122b in the first and second inserts 1121, 1122, respectively.
Preferably, the switching members 114 include a first switching member 1143 and a second switching member 1144 disposed in parallel and in parallel, wherein the first switching member 1143 and the second switching member 1144 are fixedly connected by an arc-shaped connection portion (not numbered), such that the switching members 114 are disposed in a substantially H-shape, further, the protrusions 1142 are disposed in a plurality and are disposed at an end portion of each switching member 114, respectively, and the protrusions 1142 disposed on the same switching member 114 are disposed symmetrically about an axial direction in which the rotary shaft 1141 rotates.
The control member 115 is rotatable in the housing 111 to drive the switching member 114 to move between a first position and a second position, and in the present invention, the control member 115 is a rocker member corresponding to the switching member 114 and having a rocker switch structure, and includes a switching button 117 disposed on the housing 111, a trigger portion 118 corresponding to the switching button 117, and a driving portion 119 abutting against the switching member 114. The switch button 117 is disposed on the housing 111 and the trigger portion 118 is rotatably fixed in the accommodating space of the housing 111 through a rotation shaft 1181 and located below the switch button 117, so that the switch button 117 drives the trigger portion 118 to rotate about the rotation shaft 1181, and further, an axis of the rotation shaft 1181 of the trigger portion 118 and an axis of the rotation shaft 1141 of the switch member 114 are located in the same or two parallel planes.
Further, one end of the driving portion 119 abuts against the switching member 114, the other end is connected to the triggering portion 118, and the end of the driving portion 119 abutting against the switching member 114 is in an arc shape, so that the driving portion 119 can be tightly abutted against the arc-shaped connecting portion of the switching member 114 and drive the switching member 114 to rotate.
Preferably, the triggering portion 118 has a receiving hole (not shown) for receiving the driving portion 119, and an elastic element (not shown) for elastically connecting the triggering portion 118 and the driving portion 119 is disposed between the triggering portion 118 and the driving portion 119, so that when the control member 115 abuts against the switching member 114, the driving portion 119 abuts against the switching member 114 along a side far from the triggering portion 118 under the action of the elastic element, so that the end portion/protrusion 1142 of the switching member 114 tightly abuts against the plug-in 112/intermediate connection member 116 during the process of driving the switching member 114 to rotate by the control member 115, thereby ensuring the stability of the power transmission of the power switching device 11.
Specifically, the control member 115 has an initial position and a switching position provided corresponding to the first position and the second position, and defines the switching position when the control member 115 controls the switching member 114 to be in the first position as the first switching position and the switching position to be in the second position as the second switching position.
When the switching button 117 is in the initial position, the driving part 119 is abutted against the central axis of the switching member 114 so that the switching member 114 does not deflect, the switching member 114 does not contact the plug-in 112, and the positive electrodes 12a, 13a and the negative electrodes 12b, 13b of the first and second energy units connected to the plug-in 112 are in an open state, so that the electric energy storage system cannot deliver electric energy to the outside.
Referring to fig. 7 in combination with fig. 5 and 6, when the switching member 114 rotates to the first switching position under the action of the control member 115, the first protrusion 1142a on the first switching member 1143 abuts against the intermediate connection member 116a, the first protrusion 1144b on the second switching member 1144 abuts against the intermediate connection member 116d, and further, the intermediate connection member 116a and the intermediate connection member 116d are electrically connected with the intermediate connection member 116c and the intermediate connection member 116b under the action of the abutting action of the switching member 114, so that the positive terminal 1121a of the first plug 1121 and the positive terminal 1122a of the second plug 1122 are electrically connected, and the negative terminal 1121b of the first plug 1121 and the negative terminal 1122b of the second plug 1122 are electrically connected.
Further, the positive electrode output 1123a of the output terminal 1123 is electrically connected to the positive electrode terminal 1121a or the positive electrode terminal 1122a through an electrical connection structure such as a wire, and the negative electrode output 1123b is electrically connected to the negative electrode terminal 1121b or the negative electrode terminal 1122b through an electrical connection structure such as a wire, so that the first energy unit and the second energy unit are connected in parallel, and output of low voltage (i.e., nV) is achieved through the output terminal 1123.
When the switching member 114 rotates to the second switching position under the urging action of the control member 115, the second protrusion 1142c on the first switching member 1143 and the second protrusion 1144d on the second switching member 1144 each urge against the intermediate connection member 116e, and further electrically connect the positive terminal 1122a of the second plug-in unit 1122 and the negative terminal 1121b of the first plug-in unit 1121 through the intermediate connection member 116b and the intermediate connection member 116 c.
Further, the positive electrode output 1123a of the output terminal 1123 is electrically connected to the positive electrode terminal 1121a through an electrical connection structure such as a wire, the negative electrode output 1123b is electrically connected to the negative electrode terminal 1122b through an electrical connection structure such as a wire, so that the first energy unit and the second energy unit are connected in series, and output of high voltage (i.e., 2 nV) is achieved through the output terminal 1123.
Referring to fig. 8 in combination with fig. 2, in a second embodiment of the present invention, the electrical energy storage system has the same first energy unit and second energy unit, and the difference is mainly that the structure and form of the electrical energy switching apparatus 12 are mainly different, and the following description will be detailed for the different contents, which are not repeated herein.
Referring to fig. 9 to 11, in the present embodiment, the power switching device 12 includes a housing 121, a plug 122 accommodated in the housing 121, and a power switching assembly 123 adjustably connected to the plug 122. Further, the housing 121 is provided with a housing space (not numbered) for housing the plug-in 122 and the power switching assembly 123. The plug-in unit 122 includes a first plug-in unit 1221 and a second plug-in unit 1222 for electrically connecting the first energy unit and the second energy unit, and an output end 1223 for outputting electric energy, where the first plug-in unit 1221, the second plug-in unit 1222, and the output end 1223 are all installed in the accommodating space.
The power switching assembly 123 includes a control member 124 and a switching member 125. The control member 124 includes a switching button 126 provided on the trigger 121 provided corresponding to the housing button 126, a switching portion 128, and an intermediate connection member 129 provided corresponding to the triggering portion 128. In this embodiment, the switch button 126 and the trigger portion 128 are integrally formed, the switch button 126 partially penetrates the housing 121 and is clamped in the accommodating space by the trigger portion 128, further, a limit post 1281 protruding along the extending direction of the switch button 126 is provided on the trigger portion 128, a supporting post (not shown) corresponding to the limit post 1281 is provided on the housing 121, and when the switch button 126 is rotated, the switch button 126 can be limited in a fixed position under the action of the limit post 1281 and the supporting post, so as to prevent the switch member 125 connected to the control member 124 from swinging between the first position and the second position.
The intermediate connection member 129 is provided with connection holes (not numbered) arranged in a staggered manner, and in this embodiment, the intermediate connection member 129 is an insulating intermediate connection member made of an insulating material. Further, the positive electrode terminals 1221a, 1222a and the negative electrode terminals 1221b, 1222b of the first plug 1221 and the first plug 1222 each have a connection portion (not numbered) provided corresponding to the connection hole, the connection portions of the positive electrode terminals 1221a, 1222a and the negative electrode terminals 1221b, 1222b of the first plug 1221 and the first plug 1222 are exposed to the surface of the intermediate connection member 129 near the trigger portion 128 side through the connection hole, and the positive electrode terminal 1221a and the negative electrode terminal 1221b of the first plug 1221, the positive electrode terminal 1222a and the negative electrode terminal 1222b of the first plug 1222 are provided on both sides of the intermediate connection member 129, respectively.
The switching member 125 is disposed at an end of the triggering portion 128 near the intermediate connecting member 129, and can rotate about the triggering portion 128 under the driving of the switching button 126, so as to switch between the first position and the second position. Further, the switching members 125 have a first switching member 1251 and a second switching member 1252 disposed symmetrically on both sides of the trigger portion 128, and in this embodiment, each switching member 125 has a first end 1253a, 1253b and a second end 1253c, 1253d formed by extending the first end 1253a, 1253b outwardly, and a space between the two first ends 1253a, 1253b is smaller than a space between the two second ends 1253c, 1253d, such that a substantially "Y" shaped gap is formed between the first switching member 1251 and the second switching member 1252.
In the present embodiment, the switching member 125 also has an initial position, a first switching position provided corresponding to the first position, and a second switching position provided corresponding to the second position. Referring to fig. 12 and 13, when the switching member 125 is at the initial position, the switching member 125 is not in contact with the connection portions of the positive terminals 1221a, 1222a and the negative terminals 1221b, 1222b of the first and second plug-ins 1221, 1222, and the positive electrodes 12a, 13a and the negative electrodes 12b, 13b of the first and second energy units connected to the plug-ins 122 are in the open state, so that the electric energy storage system cannot deliver electric energy to the outside.
Referring to fig. 12 and 14, when the switching member 125 is rotated to the first switching position by the control member 124, the first end 1253a and the second end 1253c of the first switching member 1251 are connected to the positive terminal 1221a of the first plug-in unit 1221 and the positive terminal 1222a of the second plug-in unit 1222, respectively, by the connection portions, and the first end 1253b and the second end 1253d of the second switching member 1252 are connected to the negative terminal 1222b of the first plug-in unit 1221 and the negative terminal 1222b of the first plug-in unit 1222, respectively, by the connection portions.
Further, the positive electrode output 1223a of the output terminal 1223 is electrically connected to the positive electrode terminal 1221a or the positive electrode terminal 1222a through an electrical connection structure such as a wire, the negative electrode output 1223b is electrically connected to the negative electrode terminal 1221b or the negative electrode terminal 1222b through an electrical connection structure such as a wire, so that the first energy unit and the second energy unit are connected in parallel, and output of low voltage (i.e., nV) is achieved through the output terminal 1223.
Referring to fig. 12 and 15, when the switching member 125 is rotated to the second switching position by the control member 124, the first end 1253b and the second end 1253d of the second switching member 1252 are respectively connected to the negative terminal 1222b of the first plug-in unit 1221 and the 1222a of the second plug-in unit 1222 by the connection portions, and at least one of the first end 1253a and the second end 1253c of the first switching member 1251 rotates along the plane of the intermediate connection member 129 and does not contact the connection portions on the intermediate connection member 129.
Further, the positive electrode output 1223a of the output end 1223 is electrically connected to the positive electrode terminal 1221a through an electrical connection structure such as a wire, the negative electrode output 1223b is electrically connected to the negative electrode terminal 1222b through an electrical connection structure such as a wire, so that the first energy unit and the second energy unit are connected in series, and output of high voltage (i.e. 2 nV) is achieved through the output end 1223.
Fig. 16 is a schematic diagram of an electrical energy storage system according to a third embodiment of the invention. In this embodiment, the electric energy storage system has substantially the same structure as that in the first embodiment, except that the positive electrodes 12a ', 13a' and the negative electrodes 12b ', 13b' in the first and second energy units and the positive terminals 1121a, 1122a and the negative terminals 1121b, 1122b in the electric energy switching apparatus 11 are arranged one above the other.
Fig. 17 is a schematic diagram of an electrical energy storage system according to a fourth embodiment of the invention. In this embodiment, the electric energy storage system has substantially the same structure as that in the first and second embodiments, except that the positive electrodes 12a ', 13a' and the negative electrodes 12b ', 13b' and the positive electrode terminals 1121a, 1122a and the negative electrode terminals 1121b, 1122b in the first and second energy units are arranged in a tandem arrangement.
The invention also provides an electric tool (not shown). The electric power tool includes a tool body and an electric power switching device 11 for electrically connecting the tool body and a power supply device.
In the invention, the tool body is provided with a plug-in part for connecting the electric energy switching device 11, the plug-in part is provided with two connecting sheets with opposite polarities, and the two connecting sheets with opposite polarities are respectively correspondingly connected with the positive electrode output 23a and the negative electrode output 23b with the same polarity in the output end 1123 in the electric energy switching device 11 so as to ensure the normal input of the working voltage.
In the present invention, the rated voltage of the electric power tool is nV, and the electric power tool can be connected to different power supply devices having energy units with output voltages of n/2V or nV through the power switching device 11.
Specifically, the electric tool may 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 n/2V, and in this embodiment, each energy unit with an output voltage of n/2V has two output electrodes with opposite polarities.
Further, when the electric tool is electrically connected to the dual-voltage power supply device/single-voltage power supply device through the electric power switching device 11, the electric power switching device 11 is electrically connected to the output electrodes of the two energy units with the output voltage of n/2V through the positive electrode terminal 1121a and the negative electrode terminal 1121b in the first plug-in unit 1121 and the positive electrode terminal 1122a and the negative electrode terminal 1122b in the second plug-in unit 1122 respectively, at this time, the switching member 114 is controlled to move to the second position by the control member 115, so that the negative electrode terminal 1121b of the first plug-in unit 1121 is electrically connected to the positive electrode terminal 1122a in the second plug-in unit 1122 through the switching member 114, so as to control the two energy units with the output voltage of n/2V to be connected in series, and the voltage output by the dual-voltage power supply device or the single-voltage power supply device is nV, thereby meeting the rated voltage of the tool body and ensuring the normal operation of the electric tool.
The electric tool can also be connected with a double-voltage power supply device or a single-voltage power supply device with two energy units with the output voltage of nV, and each energy unit with the output voltage of nV is provided with two output electrodes with opposite polarities.
Specifically, when the electric power tool is electrically connected to the dual-voltage power supply device/single-voltage power supply device through the electric power switching device 11, the switching member 114 is controlled to move to the first position by the control member 115, at this time, the positive terminal 1121a of the first plug 1121 is electrically connected to the positive terminal 1122a of the second plug 1122 through the switching member 114, the negative terminal 1121b of the first plug 1121 is electrically connected to the negative terminal 1122b of the second plug 1122 through the switching member 114/intermediate connection member 116, and further, the electric power switching device 11 is electrically connected to the output electrodes of the two energy units with nV output voltages through the positive terminal 1121a and the negative terminal 1121b of the first plug 1121 and the positive terminal 1122a and the negative terminal 1122b of the second plug 1122, respectively, so that the two energy units with nV output voltages are connected in parallel, the voltage output by the dual-voltage power supply device or the single-voltage power supply device is controlled to nV, thereby meeting the voltage of the tool main body and ensuring the normal operation of the electric power tool.
The power tool may also be connected to a single voltage supply having an energy unit with an output voltage nV, the energy unit having two output electrodes of opposite polarity.
Specifically, when the electric power tool is electrically connected to the single-voltage power supply device through the electric power switching device 11, the switching member 114 is controlled to move to the second position through the switching button 117, at this time, the positive terminal 1122a in the second plug-in unit 1122 is electrically connected to the negative terminal 1121b of the first plug-in unit 1121 through the switching member 114, and further, the electric power switching device 11 is electrically connected to the output electrode of the energy unit with an output voltage nV through two terminals of the first plug-in unit 1121 and the second plug-in unit 1122, which are opposite in polarity and are arranged in parallel and close to each other, such as the positive terminal 1122a in the second plug-in unit 1122 and the negative terminal 1121b of the first plug-in unit 1121 in fig. 2, and performs voltage output of nV, thereby satisfying the rated voltage of the tool body and ensuring the normal operation of the electric power tool.
Referring to fig. 18, an electric power tool system 20 according to the present invention includes an electric power storage system and an electric power tool 201, wherein the electric power tool 201 is used for performing corresponding work tasks, and the electric power storage system is used for providing corresponding electric power for the electric power tool 201 to ensure the normal operation of the electric power tool system 20.
In the present invention, the power tool 201 has a plug 202 for connecting to an electrical energy storage system, and in the present invention, the power tool 201 may be either a low voltage power tool for receiving a low voltage input or a high voltage power tool for receiving a high voltage input.
Further, the electric energy storage system completes the switching of the output voltage through the electric energy switching device 11 arranged on the electric energy storage system, so that the electric tool system 20 can be matched with a low-voltage electric tool or a high-voltage electric tool, and the practicability of the electric tool system 20 is effectively improved.
It should be noted that, in the process of describing the structure of the electric tool and the electric tool system 20 in this specification, the electric power switching device 11 includes the electric power switching device 11 and the electric power switching device 12, and also includes the electric power switching device without departing from the spirit and scope of the technical solution of the present invention, that is, in the process of describing the structure of the electric tool and the electric tool system 20 in this specification, only the electric power switching device 11 is taken as an example for illustration, but not limited thereto.
In summary, the electrical energy switching apparatus 11, 12 of the present invention can realize two different voltage outputs by adjusting the coupling modes between the different plug-ins 112, 122 and the plug-ins 112, 122 electrically connected to the switching members 114, 125 by arranging the switching members 114, 125 capable of switching between the first position and the second position, and simultaneously, the electrical energy tool having the electrical energy switching apparatus 11, 12 can be matched with a plurality of power supply apparatuses having different output voltages, thereby effectively increasing the application range of the electrical energy storage system/electrical tool system 20 using the electrical energy switching apparatus 11, 12 and reducing the cost.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.
Claims (12)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010186739.1A CN111243879B (en) | 2020-03-17 | 2020-03-17 | Power switching component and tool and system having the same |
| AU2021239252A AU2021239252A1 (en) | 2020-03-17 | 2021-03-16 | Electric energy switching assembly, tool with electric energy switching assembly and system |
| CA3175614A CA3175614A1 (en) | 2020-03-17 | 2021-03-16 | Power switching device and application thereof |
| US17/912,047 US20230133914A1 (en) | 2020-03-17 | 2021-03-16 | Power switching device and application thereof |
| EP21771459.1A EP4109686B1 (en) | 2020-03-17 | 2021-03-16 | Electric energy switching assembly, tool with electric energy switching assembly and system |
| PCT/CN2021/080950 WO2021185228A1 (en) | 2020-03-17 | 2021-03-16 | Electric energy switching assembly, tool with electric energy switching assembly and system |
Applications Claiming Priority (1)
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| CN202010186739.1A CN111243879B (en) | 2020-03-17 | 2020-03-17 | Power switching component and tool and system having the same |
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| CN111243879A CN111243879A (en) | 2020-06-05 |
| CN111243879B true CN111243879B (en) | 2025-08-22 |
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| US20230133914A1 (en) * | 2020-03-17 | 2023-05-04 | Globe (jiangsu) Co., Ltd. | Power switching device and application thereof |
| CN111725458B (en) * | 2020-07-02 | 2025-02-07 | 格力博(江苏)股份有限公司 | Power Tool System |
| CN118473066B (en) * | 2024-07-15 | 2024-09-03 | 长安绿电科技有限公司 | Energy storage system and discharge control method |
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| JP2008178278A (en) * | 2006-09-19 | 2008-07-31 | Hitachi Koki Co Ltd | Adapter, combination of battery pack and adapter, and electric tool equipped with them |
| CN110829555A (en) * | 2019-12-12 | 2020-02-21 | 常州格力博有限公司 | An adapter and power tool system |
| CN211828518U (en) * | 2020-03-17 | 2020-10-30 | 格力博(江苏)股份有限公司 | Electric energy switching devices, electric energy storage systems, electric tools and systems |
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| JP4366453B2 (en) * | 2005-11-04 | 2009-11-18 | 栗三 笠松 | Drive speed adjusting device for electric tools or general-purpose electric motors |
| CA2602930C (en) * | 2006-09-19 | 2013-08-06 | Hitachi Koki Co., Ltd. | Adaptor, assembly of battery pack and adaptor, and electric tool with the same |
| CN109066237B (en) * | 2018-08-21 | 2024-10-22 | 格力博(江苏)股份有限公司 | Power tool and system thereof |
| CN110783651B (en) * | 2019-12-09 | 2025-03-04 | 格力博(江苏)股份有限公司 | Power storage device, power tool system and charging device |
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|---|---|---|---|---|
| JP2008178278A (en) * | 2006-09-19 | 2008-07-31 | Hitachi Koki Co Ltd | Adapter, combination of battery pack and adapter, and electric tool equipped with them |
| CN110829555A (en) * | 2019-12-12 | 2020-02-21 | 常州格力博有限公司 | An adapter and power tool system |
| CN211828518U (en) * | 2020-03-17 | 2020-10-30 | 格力博(江苏)股份有限公司 | Electric energy switching devices, electric energy storage systems, electric tools and systems |
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