Electric tool

Abstract

The utility model provides an electric tool which comprises a tool body, the tool body comprises a first shell, a battery mounting part and a first power supply terminal, the battery mounting part is arranged on the first shell, and the first power supply terminal is arranged on the battery mounting part; the battery pack comprises a second shell, a battery combination part and a second power supply terminal, and the battery pack is mounted on the battery mounting part of the tool main body through the battery combination part; the magnetic attraction assembly comprises a first magnetic attraction part and a second magnetic attraction part which are matched with each other, the first magnetic attraction part is arranged on the battery mounting part, and the second magnetic attraction part is arranged on the battery combining part; according to the electric tool, by arranging the magnetic attraction assembly, when the electric tool works, the vibration frequency and / or the gap between the first power supply terminal and the second power supply terminal can be reduced by means of the attraction force between the two magnetic attraction components, so that the probability of poor contact between the terminals is reduced, the condition of sparking between the terminals is avoided, and the service life of the whole machine is prolonged.

Description

Technical Field

[0001] The present application relates to the field of battery power supply technology, and in particular to an electric tool. Background Art

[0002] Battery packs are widely used in power tools to provide power to the power tools. The power tools are provided with tool terminals, and the battery packs are provided with battery pack terminals. When the battery pack and the power tool are connected, the power tool is powered by plugging the tool terminals and the battery terminals.

[0003] After the battery pack is combined with the power tool, the power tool will vibrate continuously during use. The power terminals of the power tool and the power terminals of the battery pack will have poor contact due to the vibration, causing the terminals to spark and turn black or even burn. In addition, sparks between the terminals will also damage the control board of the power tool or the battery pack, eventually rendering the power tool unusable. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present application is to provide an electric tool that can reduce the probability of poor contact between the tool terminals and the battery pack terminals when the electric tool is working, avoid sparks between the tool terminals and the battery pack terminals, and extend the service life of the entire machine.

[0005] To achieve the above objectives and other related objectives, the present application provides an electric tool, comprising:

[0006] A tool body, comprising a first shell, a battery mounting portion and a first power supply terminal, wherein the battery mounting portion is arranged on the first shell, and the first power supply terminal is arranged on the battery mounting portion;

[0007] A battery pack, comprising a second shell, a battery combination portion and a second power supply terminal, wherein the battery combination portion is arranged on the second shell, the second power supply terminal is arranged on the battery combination portion, and the battery pack is installed on the battery installation portion of the tool body through the battery combination portion;

[0008] The magnetic attraction component comprises a first magnetic attraction component and a second magnetic attraction component which cooperate with each other, wherein the first magnetic attraction component is arranged at the battery installation portion, and the second magnetic attraction component is arranged at the battery combination portion;

[0009] The magnetic attraction component is configured to reduce the vibration frequency and / or gap between the first power supply terminal and the second power supply terminal by relying on the adsorption force between the first magnetic attraction component and the second magnetic attraction component when the electric tool is working.

[0010] In an optional embodiment of the present application, one of the first magnetic attraction component and the second magnetic attraction component is a permanent magnet, and the other is a permanent magnet or a metal part that can be attracted by a permanent magnet.

[0011] In an optional embodiment of the present application, one of the first magnetic attraction component and the second magnetic attraction component is an electromagnet, and the other is a permanent magnet, an electromagnet, or a metal part that can be attracted by an electromagnet.

[0012] In an optional embodiment of the present application, the electric tool includes an operating switch, which serves as a start-stop switch of the electric tool and a control switch of the first magnetic component and / or the second magnetic component. The operating switch can be used to synchronously start the electric tool and the first magnetic component and / or the second magnetic component, and synchronously shut down the electric tool and the first magnetic component and / or the second magnetic component.

[0013] In an optional embodiment of the present application, the tool body further includes a grip portion disposed on one side of the first shell, the battery mounting portion is disposed at an end of the grip portion away from the first shell, and the operating switch is disposed on the grip portion.

[0014] In an optional embodiment of the present application, the battery pack is detachably connected to the tool body.

[0015] In an optional embodiment of the present application, the first magnetic component is disposed at a position of the battery mounting portion close to the first power supply terminal, and the second magnetic component is disposed at a position of the battery combining portion close to the first power supply terminal.

[0016] In an optional embodiment of the present application, the battery mounting portion is provided with a battery pack slot and a pair of guide rails, the pair of guide rails are provided on both sides of the battery pack slot, the first power supply terminal is provided at the rear end of the battery pack slot and is located between the pair of guide rails, and the first magnetic attraction component is provided at one end of the guide rail close to the first power supply terminal;

[0017] Slide rails cooperating with the guide rails are arranged on both sides of the battery combining part, the second power supply terminal is arranged at the insertion end of the battery combining part, the second magnetic attraction component is embedded in one end of the slide rail close to the second power supply terminal, and the first magnetic attraction component and the second magnetic attraction component are positioned correspondingly.

[0018] In an optional embodiment of the present application, an opening is formed on the slide rail, and the opening exposes at least a portion of the first magnetic attraction component.

[0019] In an optional embodiment of the present application, the tool body further includes a terminal seat, the terminal seat is mounted at the rear end of the battery pack slot, and the first power supply terminal is fixedly mounted on the terminal seat;

[0020] The first magnetic attraction component is arranged on a side of the terminal seat away from the first power supply terminal;

[0021] The second magnetic attraction component is arranged on the insertion end of the battery combining portion, and the first magnetic attraction component and the second magnetic attraction component are located correspondingly.

[0022] In an optional embodiment of the present application, the distance between the first magnetic attraction component and the second magnetic attraction component is less than or equal to 1 mm.

[0023] In an optional embodiment of the present application, the electric tool includes one of a lawn mower, a pruner, a hair dryer, an electric saw, a sander, a mower, a cleaning machine, a vacuum cleaner, an electric drill, an electric hammer, a lawn mower, an electric wrench and a cleaning device.

[0024] The electric tool of the present application is equipped with a magnetic suction component at the matching position of the tool body and the battery pack, so that when the electric tool is working, it can rely on the adsorption force between the two magnetic suction components to achieve a fixing and shockproof effect, so as to reduce the vibration frequency and / or gap between the tool terminal and the battery pack terminal, thereby reducing the probability of poor contact between the tool terminal and the battery pack terminal, avoiding sparks between the tool terminal and the battery pack terminal, and extending the service life of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a three-dimensional view of a power tool according to an embodiment of the present application.

[0026] Figure 2 Shown is a three-dimensional view of a tool body according to an embodiment of the present application.

[0027] Figure 3 Shown is a partial enlarged view of a tool body for removing a terminal seat in one embodiment of the present application.

[0028] Figure 4 Shown is a three-dimensional view of a terminal block in one embodiment of the present application.

[0029] Figure 5 Shown is a circuit block diagram of a three-dimensional power supply system of a battery pack according to an embodiment of the present application.

[0030] Figure 6 Shown is an exploded schematic diagram of a battery pack according to an embodiment of the present application.

[0031] Figure 7 Shown is a schematic diagram of the structure of an electric tool with an electromagnet according to an embodiment of the present application.

[0032] Description of symbols

[0033] Tool body 10; first shell 11; gripping portion 12; battery mounting portion 13; battery pack slot 131; terminal seat mounting portion 132; guide rail 133; first magnetic member mounting portion 133a, 133b; limit slot 134; operating switch 14; terminal seat 15; first power supply terminal 151, second magnetic member mounting portion 152a, 152b; first magnetic member 16; first circuit board 17; battery pack 20; battery coupling portion 21; slide rail 211; insertion end 212; third magnetic member mounting portion 212a, 212b; first opening 214; second opening 215; upper shell 22; lower shell 23; limit member 24; second magnetic member 25; second power supply terminal 26. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0035] See also Figure 1-7 It should be noted that the illustrations provided in this embodiment are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0036] In order to solve the problem that after the battery pack is combined with the power tool, the power tool will vibrate continuously during use, and the power terminals of the power tool and the power terminals of the battery pack will have poor contact due to the vibration, causing the terminals to spark and turn black or even burn. Sparks will occur between the terminals, damaging the control board of the power tool or the battery pack, and ultimately making the power tool unusable.

[0037] This application provides a Figure 1 The electric tool shown includes a tool body 10, a battery pack 20 and a magnetic suction component that are adapted to each other. The electric tool can be a lawn mower, a pruner, a hair dryer, an electric saw, a sander, a mower, a cleaning machine, a vacuum cleaner, an electric drill, an electric hammer, a lawn mower, an electric wrench, a cleaning device, etc.

[0038] See also Figure 1-6The tool body 10 includes a first shell 11, a battery mounting portion 13 and a first power supply terminal 151, the battery mounting portion 13 is arranged on the first shell 11, and the first power supply terminal 151 is arranged on the battery mounting portion 13; the battery pack 20 includes a second shell, a battery coupling portion 21 and a second power supply terminal 26, the battery coupling portion 21 is arranged on the second shell, and the second power supply terminal 26 is arranged on the battery coupling portion 21, and the battery pack 20 is installed on the battery mounting portion 13 of the tool body 10 through the battery coupling portion 21; the magnetic attraction component includes a first magnetic attraction component 16 and a second magnetic attraction component 25 that cooperate with each other, the first magnetic attraction component 16 is arranged on the battery mounting portion 13, and the second magnetic attraction component 25 is arranged on the battery coupling portion 21; the magnetic attraction component is configured to rely on the adsorption force between the first magnetic attraction component 16 and the second magnetic attraction component 25 to reduce the vibration frequency and / or gap between the first power supply terminal 151 and the second power supply terminal 26 when the electric tool is working.

[0039] By setting a magnetic attraction component at the matching position of the tool body 10 and the battery pack 20, when the electric tool is working, the adsorption force between the two magnetic attraction components can be relied upon to achieve a fixing and shockproof effect, so as to reduce the vibration frequency and / or gap between the tool terminal and the battery pack 20 terminal, thereby reducing the probability of poor contact between the tool terminal and the battery pack 20 terminal, avoiding sparks between the tool terminal and the battery pack 20 terminal, and extending the service life of the entire machine.

[0040] The technical solution of the present application will be described in detail below with reference to the accompanying drawings.

[0041] See also Figure 1-6 The electric tool is a handheld electric tool, including a tool body 10 and a battery pack 20 that cooperate with each other, and the tool body 10 and the battery pack 20 are detachably connected.

[0042] See also Figure 1-4 The electric tool includes a first housing 11, a grip 12, a battery mounting portion 13 and a first power supply terminal 151. The first housing 11 is used to mount the functional module of the electric tool; the grip 12 is arranged at one side of the first housing 11 for holding by a person, and a control switch 14 is arranged on the grip 12; the battery mounting portion 13 is arranged at one end of the grip 12 away from the first housing 11, and the battery mounting portion 13 is used to mount the battery pack 20, and the first power supply terminal 151 is arranged on the battery mounting portion 13. The first housing 11, the grip 12 and the battery mounting portion 13 can be integrally formed, or they can be separately formed and assembled together.

[0043] It is understandable that the battery installation portion 13 may not be connected to the grip portion 12 , but may be directly disposed on the first shell 11 .

[0044] It is understandable that in some non-handheld power tools, the gripping portion 12 may not be provided, and the battery mounting portion 13 may be directly provided on the first housing 11 .

[0045] See also Figure 5 and Figure 6 The battery pack 20 includes a second shell, a battery combination portion 21 and a second power supply terminal 26. The second shell includes an upper shell 22 and a lower shell 23, the upper shell 22 and the lower shell 23 are fixedly connected, and the upper shell 22 and the lower shell 23 are assembled to form a receiving cavity, and the battery cell assembly and the circuit board are received in the receiving cavity, and the battery combination portion 21 is arranged on the top surface of the upper shell 22.

[0046] The battery combination part 21 of the battery pack 20 is inserted into the battery pack slot 131 of the battery mounting part 13 from one end of the socket of the battery mounting part 13 of the power tool, and is limited by the limiter 24 provided on the top surface of the upper shell 22 of the battery pack 20 and the limiter slot 134 provided on the front bottom surface of the battery pack slot 131 to prevent the battery combination part 21 and the battery mounting part 13 from sliding along the insertion direction. At the same time, the battery mounting part 13 is configured to at least partially include the battery combination part 21, so as to prevent the battery combination part 21 from escaping from the battery mounting part 13 in a direction other than the socket of the battery mounting part 13, so as to ensure the stability of the battery pack 20.

[0047] Of course, the battery combining portion 21 may also be disposed on the bottom or side wall of the battery pack 20 shell, and may be adaptively adjusted according to the assembly method of the battery pack 20 and the tool body 10 .

[0048] See also Figure 1-6 The magnetic attraction assembly includes a first magnetic attraction component 16 and a second magnetic attraction component 25 that cooperate with each other. The first magnetic attraction component 16 is arranged on the battery mounting portion 13, and the second magnetic attraction component 25 is arranged on the battery combining portion 21. One of the first magnetic attraction component 16 and the second magnetic attraction component 25 is a permanent magnet, and the other is a permanent magnet or a metal part that can be attracted by a permanent magnet. The permanent magnet can be, for example, a neodymium iron boron magnet, a ferrite magnet, an aluminum nickel cobalt magnet, a samarium cobalt magnet, an iron chromium cobalt magnet, etc. The material of the magnetic attraction metal part can be, for example, iron, cobalt, nickel, manganese or a combination thereof.

[0049] When the battery pack 20 is assembled on the tool body 10, the adsorption force between the first magnetic component 16 and the second magnetic component 25 has a fixing and shockproof effect, so as to reduce the vibration frequency and / or gap between the first power supply terminal 151 and the second power supply terminal 26 when the power tool is working, thereby reducing the probability of poor contact between the first power supply terminal 151 and the second power supply terminal 26, avoiding sparks between the first power supply terminal 151 and the second power supply terminal 26, and extending the service life of the entire machine.

[0050] It should be noted that in order to satisfy the strong adsorption force between the first magnetic component 16 and the second magnetic component 25, the gap between the first magnetic component 16 and the second magnetic component 25 needs to be as small as possible. As an example, the spacing between the first magnetic component 16 and the second magnetic component 25 is less than or equal to 1mm, such as 0mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm.

[0051] See also Figure 1-6 In order to better reduce the vibration frequency and / or gap between the first power terminal 151 and the second power terminal 26 when the power tool is working, the first magnetic component 16 can be set at a position of the battery mounting portion 13 close to the first power terminal 151, and the second magnetic component 25 can be set at a position of the battery combining portion 21 close to the first power terminal 151, so that the position of the adsorption force between the first magnetic component 16 and the second magnetic component 25 is closer to the first power terminal 151 and the second power terminal 26, further reducing the probability of poor contact between the first power terminal 151 and the second power terminal 26, avoiding sparks between the first power terminal 151 and the second power terminal 26, and extending the service life of the whole machine.

[0052] See also Figure 1-3 In a specific embodiment, the battery installation portion 13 is provided with a battery pack slot 131 and a pair of guide rails 133. The pair of guide rails 133 are provided on the side walls of the battery pack slot 131, and the first power supply terminal 151 is provided at the rear end of the battery pack slot 131 and is located between the pair of guide rails 133. The first magnetic attraction component 16 is a permanent magnet, and the first magnetic attraction component 16 can be provided at one end of the guide rail 133 close to the first power supply terminal 151 according to the position of the second magnetic attraction component 25, for example Figure 3 The first magnetic member mounting portion 133a or 133b of the dotted circle in the figure, wherein the first magnetic member mounting portion 133a is located at the side position of the guide rail 133, and the first magnetic member mounting portion 133b is located at the end position of the guide rail 133.

[0053] See also Figure 5 and Figure 6 The two sides of the battery combination part 21 are provided with slide rails 211 that slide with the guide rails 133, the second power supply terminal 26 is provided at the insertion end 212 of the battery combination part 21, and the second magnetic attraction component 25 can be selected, for example, a long strip of metal that can be attracted by a permanent magnet, and is parallel to the insertion direction (i.e. Figure 1The metal part (in the front-to-back direction) is embedded in the slide rail 211 at one end close to the second power supply terminal 26, so that when the battery pack 20 is assembled on the tool body 10, the metal part can interact with the permanent magnet arranged at the first magnetic part mounting portion 133a or the first magnetic part mounting portion 133b to generate an adsorption force to achieve a fixing and shockproof effect, so as to reduce the vibration frequency and / or gap between the first power supply terminal 151 and the second power supply terminal 26 when the power tool is working, thereby reducing the probability of poor contact between the first power supply terminal 151 and the second power supply terminal 26, avoiding sparks between the first power supply terminal 151 and the second power supply terminal 26, and extending the service life of the whole machine. Of course, the first magnetic part 16 can also be made of metal parts, while the second magnetic part 25 can be made of permanent magnets.

[0054] See also Figure 5 and Figure 6 The slide rail 211 is also provided with an opening, which reveals at least part of the first magnetic component 16, that is, the first magnetic component 16 can reveal part or all of the first magnetic component 16. The opening can not only increase the adsorption force of the first magnetic component 16 and the second magnetic component 25, but also serve as a positioning hole for the second shell and the battery combination part 21 during injection molding to play a positioning role. The opening includes a plurality of first openings 214 spaced apart on the side wall of the slide rail 211 along the insertion direction, and a second opening 215 opened at one end of the slide rail 211 close to the insertion end 212. The first opening 214 reveals a local area of ​​the side wall of the metal part, and the second opening 215 reveals the end of the metal part.

[0055] See also Figure 1-6 The tool body 10 also includes a terminal seat 15, which is installed in the terminal seat installation part 132 at the rear end of the battery pack slot 131, and the first power supply terminal 151 is fixedly installed on the terminal seat 15. To this end, the first magnetic attraction component 16 can also be set on the side of the terminal seat 15 away from the first power supply terminal 151; the second magnetic attraction component 25 is set at the corresponding position of the insertion end 212 of the battery combination part 21. Similarly, when the battery pack 20 is assembled on the tool body 10, the adsorption force generated between the first magnetic attraction component 16 and the second magnetic attraction component 25 can play a fixing and shockproof effect, reduce the vibration frequency and / or gap between the first power supply terminal 151 and the second power supply terminal 26 when the power tool is working, thereby reducing the probability of poor contact between the first power supply terminal 151 and the second power supply terminal 26, avoiding the spark between the first power supply terminal 151 and the second power supply terminal 26, and extending the service life of the whole machine.

[0056] Specifically, see Figure 1-6, a groove-shaped second magnetic component mounting portion 152a, 152b is provided on the side of the terminal seat 15 away from the first power supply terminal 151, the second magnetic component mounting portion 152a is provided in the middle, and the second magnetic component mounting portion 152b includes two, which are respectively provided on both sides of the second magnetic component mounting portion 152a. Correspondingly, a third magnetic component mounting portion 212a, 212b corresponding to the position of the second magnetic component mounting portion 152a, 152b can also be provided on the insertion end 212 of the battery combination portion 21, the third magnetic component mounting portion 212a is provided in the middle of the insertion end 212, and the third magnetic component mounting portion 212b includes two, which are respectively provided on both sides of the third magnetic component mounting portion 212a. When the first magnetic component 16 is arranged on the second magnetic component mounting portion 152a or 152b, the second magnetic component 25 can be arranged on the third magnetic component mounting portion 212a or 212b of the insertion end 212 of the battery combining portion 21; when the first magnetic component 16 is arranged on the second magnetic component mounting portions 152a and 152b at the same time, the second magnetic component 25 can also be arranged on the third magnetic component mounting portions 212a and 212b at the same time.

[0057] This embodiment also discloses Figure 7 Another electric tool shown, with Figure 1-6 The difference between the electric tools shown is that one of the first magnetic attraction component 16 and the second magnetic attraction component 25 is an electromagnet, and the other is a permanent magnet, an electromagnet or a metal part that can be attracted by an electromagnet. The other structures are the same, so they will not be discussed again. Figure 7 The figure shows the case where the first magnetic attraction component 16 is an electromagnet, which is electrically connected to the battery pack 20 through the first circuit board 17 of the tool body 10. A magnet power supply circuit for powering the electromagnet is provided on the first circuit board 17. The magnet power supply circuit can utilize the output of the battery pack 20 to power the electromagnet.

[0058] The tool body 10 can control the on / off of the magnet power supply circuit and the electromagnet circuit through the operating switch 14 on the tool body 10, that is, the operating switch 14 can be used as the start / stop switch of the power tool and the control switch of the electromagnet. The power tool and the electromagnet can be started and shut down synchronously through the operating switch 14, so that the electromagnet can be powered on when the power tool is working and off at other times, which will not affect the disassembly of the battery pack 20.

[0059] The operating switch 14 includes, but is not limited to, a trigger, a knob, a sliding mechanism, and the like. Figure 7 The figure shows a case where the operating switch 14 is a trigger, which is arranged on the grip 12. The trigger has two functions. One function is to serve as a start-stop switch of the power tool to control the start and stop of the power tool, and the other function is to serve as a control switch of the electromagnet to power on or off the electromagnet.

[0060] It should be noted that the current of the electromagnet can also be adjusted automatically or manually according to the working gear of the power tool to adjust the magnetic field strength of the electromagnet, thereby changing the adsorption force between the magnetic suction components. For example, when the power tool is working in a high gear, the vibration is stronger. At this time, the current of the electromagnet can be increased to enhance the magnetic field strength of the electromagnet, thereby increasing the magnetic attraction between the magnetic suction components; when the power tool is working in a low gear, the vibration is relatively weak. At this time, the current of the electromagnet can be appropriately reduced to weaken the magnetic field strength of the electromagnet, thereby reducing the magnetic attraction between the magnetic suction components to save energy.

[0061] Of course, in other embodiments, the on-off control of the magnet power supply circuit and the electromagnet circuit can also be controlled by a separately set switch. Furthermore, this switch can also be set in stages to adjust the magnetic field strength of the electromagnet, thereby changing the adsorption force between the magnetic suction components. For example, when the power tool is working in a high gear, the vibration is stronger. At this time, the current of the electromagnet can be increased to enhance the magnetic field strength of the electromagnet, thereby increasing the magnetic attraction between the magnetic suction components; and when the power tool is working in a low gear, the vibration is relatively weak. At this time, the current of the electromagnet can be appropriately reduced to weaken the magnetic field strength of the electromagnet, thereby reducing the magnetic attraction between the magnetic suction components to save energy.

[0062] In the description herein, many specific details are provided, such as examples of parts and / or methods, to provide a complete understanding of the embodiments of the present application. However, those skilled in the art will recognize that the embodiments of the present application can be practiced without one or more specific details or by other devices, systems, components, methods, parts, materials, parts, etc. In other cases, known structures, materials or operations are not specifically shown or described in detail to avoid blurring the scheme of the embodiments of the present application.

[0063] References throughout the specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the present application may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the present invention and the illustrated embodiments may be possible in accordance with the teachings herein and are to be considered part of the spirit and scope of the present application.

[0064] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0065] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

[0066] As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of "in" includes "in" and "on" unless otherwise indicated.

[0067] The above description of the embodiment shown in the present application (including the content in the abstract of the specification) is not intended to be exhaustive or to limit the present application to the precise form disclosed herein. Although the specific embodiment of the present application and the example of the present application are described herein for the purpose of illustration only, as will be recognized and understood by those skilled in the art, various equivalent modifications are possible within the spirit and scope of the present application. As noted, these modifications can be made to the present application according to the above description of the embodiment of the present application, and these modifications will be within the spirit and scope of the present application.

[0068] This paper has generally described systems and methods as details that are helpful for understanding the application. In addition, various specific details have been given to provide an overall understanding of the embodiments of the application. However, those skilled in the relevant art will recognize that the embodiments of the application can be put into practice without one or more specific details, or put into practice using other devices, systems, accessories, methods, assemblies, materials, parts, etc. In other cases, known structures, materials and / or operations are not particularly shown or described in detail to avoid confusion in various aspects of the embodiments of the application.

[0069] Thus, although the present application has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present application will be adopted without corresponding use of other features without departing from the scope and spirit of the proposed application. Therefore, many modifications may be made to adapt specific environments or materials to the substantial scope and spirit of the present application. The present application is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode for carrying out the present application, but the present application will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present application will be determined solely by the appended claims.

Claims

1. An electric tool, characterized in that: include: A tool body, comprising a first shell, a battery mounting portion and a first power supply terminal, wherein the battery mounting portion is arranged on the first shell, and the first power supply terminal is arranged on the battery mounting portion; A battery pack, comprising a second shell, a battery combination portion and a second power supply terminal, wherein the battery combination portion is arranged on the second shell, the second power supply terminal is arranged on the battery combination portion, and the battery pack is installed on the battery installation portion of the tool body through the battery combination portion; The magnetic attraction component comprises a first magnetic attraction component and a second magnetic attraction component which cooperate with each other, wherein the first magnetic attraction component is arranged at the battery installation portion, and the second magnetic attraction component is arranged at the battery combination portion; The magnetic attraction component is configured to reduce the vibration frequency and / or gap between the first power supply terminal and the second power supply terminal by relying on the adsorption force between the first magnetic attraction component and the second magnetic attraction component when the electric tool is working.

2. The electric tool according to claim 1, characterized in that: One of the first magnetic attraction component and the second magnetic attraction component is a permanent magnet, and the other is a permanent magnet or a metal part that can be attracted by a permanent magnet.

3. The electric tool according to claim 1, characterized in that: One of the first magnetic attraction component and the second magnetic attraction component is an electromagnet, and the other is a permanent magnet, an electromagnet, or a metal part that can be attracted by an electromagnet.

4. The electric tool according to claim 3, characterized in that: The electric tool includes an operating switch, which serves as a start / stop switch of the electric tool and a control switch of the first magnetic component and / or the second magnetic component. The operating switch can be used to synchronously start the electric tool and the first magnetic component and / or the second magnetic component, and synchronously shut down the electric tool and the first magnetic component and / or the second magnetic component.

5. The electric tool according to claim 4, characterized in that: The tool body further comprises a gripping portion arranged on one side of the first shell, the battery mounting portion is arranged at an end of the gripping portion away from the first shell, and the operation switch is arranged on the gripping portion.

6. The electric tool according to claim 1, characterized in that: The first magnetic attraction component is disposed at a position of the battery mounting portion close to the first power supply terminal, and the second magnetic attraction component is disposed at a position of the battery combining portion close to the first power supply terminal.

7. The electric tool according to claim 6, characterized in that: The battery installation portion is provided with a battery pack slot and a pair of guide rails, the pair of guide rails are provided on both sides of the battery pack slot, the first power supply terminal is provided at the rear end of the battery pack slot and is located between the pair of guide rails, and the first magnetic attraction component is provided at one end of the guide rail close to the first power supply terminal; Slide rails cooperating with the guide rails are arranged on both sides of the battery combining part, the second power supply terminal is arranged at the insertion end of the battery combining part, the second magnetic attraction component is embedded in one end of the slide rail close to the second power supply terminal, and the first magnetic attraction component and the second magnetic attraction component are positioned correspondingly.

8. The electric tool according to claim 7, characterized in that: The slide rail is provided with an opening, and the opening reveals at least a portion of the first magnetic attraction component.

9. The electric tool according to claim 6, characterized in that: The tool body further comprises a terminal seat, the terminal seat is mounted at the rear end of the battery pack slot, and the first power supply terminal is fixedly mounted on the terminal seat; The first magnetic attraction component is arranged on a side of the terminal seat away from the first power supply terminal; The second magnetic attraction component is arranged on the insertion end of the battery combining portion, and the first magnetic attraction component and the second magnetic attraction component are located correspondingly.

10. The electric tool according to claim 1, characterized in that: The distance between the first magnetic attraction component and the second magnetic attraction component is less than or equal to 1 mm.

11. The electric tool according to claim 1, characterized in that: The electric tool includes one of a lawn mower, a pruning machine, a hair dryer, an electric saw, a sander, a mower, a cleaning machine, a vacuum cleaner, an electric drill, an electric hammer, a lawn mower, an electric wrench and a cleaning device.

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