CN215617872U - Battery pack and electric tool assembly - Google Patents

Abstract

The utility model discloses a battery pack and electric tool assembly, which comprises an electric tool, a battery pack and a switch assembly, wherein the electric tool comprises a first conductive part and a first matching piece staggered with the first conductive part; the battery pack is used for providing electric energy for the electric tool and detachably connected with the electric tool, the battery pack comprises a second conductive part and a second fitting piece, the second conductive part is detachably connected with the first conductive part, and the second fitting piece is in magnetic attraction fit with the first fitting piece; the switch assembly is arranged on the electric tool and/or the battery pack and is used for controlling the on-off of the magnetic attraction matching. This subassembly of battery package and electric tool, its battery package and electric tool's easy dismounting, and when electric tool used, the battery package was fixed firm with electric tool.

Description

Battery pack and electric tool assembly

Technical Field

The present disclosure relates to the field of electrical devices, and more particularly, to a battery pack and power tool assembly.

Background

At present, more and more electric tools (such as pruning tools, electric drill tools, electric saw tools, mowing tools, blowing tools and the like) use battery packs to supply power, are not limited by power supply lines (such as commercial power and the like), and improve convenience.

However, in the related art, when the electric tool is used, the battery pack needs to be reliably fixed on the electric tool, so that the detachable connection structure of the battery pack and the electric tool is complicated, and the disassembly and assembly are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a subassembly of battery package and electric tool, its battery package and electric tool's easy dismounting, and when electric tool used, it was firm that battery package and electric tool are fixed.

The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, an assembly of a battery pack and an electric tool is provided, which includes an electric tool, a battery pack, and a switch assembly, where the electric tool includes a first conductive part and a first mating member staggered from the first conductive part; the battery pack is used for providing electric energy for the electric tool and detachably connected with the electric tool, the battery pack comprises a second conductive part and a second fitting piece, the second conductive part is detachably connected with the first conductive part, and the second fitting piece is in magnetic attraction fit with the first fitting piece; the switch assembly is arranged on the electric tool and/or the battery pack and is used for controlling the on-off of the magnetic attraction matching.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when the electric tool is connected with the battery pack, the first conductive part is connected with the second conductive part, so that the battery pack provides electric energy for the electric tool. When the electric tool is used, the switch assembly is closed, so that the first matching piece and the second matching piece are in magnetic attraction matching, the electric tool and the battery pack are fixed firmly by utilizing the magnetic attraction mode, the battery pack cannot fall off due to reasons such as vibration, and the power supply of the electric tool in the using process is reliable. And when the battery package is dismantled from electric tool as required, the switch module disconnection for the cooperation disconnection is inhaled with the magnetism of first fitting piece to the second fitting piece, and the battery package of being convenient for and electric tool's dismantlement is favorable to improving dismantlement efficiency.

The technical solution of the present disclosure is further explained below:

in one embodiment, at least one of the first mating member and the second mating member is an electromagnetic attraction member, the other one is an electromagnetic attraction member or a magnetically attracted member, and the switch assembly is connected in series with the electromagnetic attraction member to control the on-off of the electromagnetic attraction member. Therefore, the on-off of the electromagnetic attraction piece can be realized only by controlling the on-off of the switch component, and the on-off control of the magnetic attraction matching is realized.

In one embodiment, the first mating member is a magnetically attracted member, the second mating member is an electromagnetic attraction member, and the switch assembly is arranged on the battery pack to control the on-off of the electromagnetic attraction member;

or, the first fitting piece is an electromagnetic attraction piece, the second fitting piece is an attracted piece, and the switch assembly is arranged on the electric tool to control the on-off of the electromagnetic attraction piece. Therefore, the method can be flexibly selected according to actual needs to meet different requirements.

In one embodiment, the power tool further comprises a motor, the first mating member is an electromagnetic attraction member, the electromagnetic attraction member is arranged on the power tool, and the electromagnetic attraction member is connected with the motor in parallel. Therefore, the electromagnetic attraction piece is connected with the motor in parallel, so that the higher the power of the motor is, the stronger the magnetic force generated by the electromagnetic attraction piece is, and the firmness of fixing the battery pack is further improved.

In one embodiment, one of the first conductive part and the second conductive part is an electrical interface, and the other is an electrical connector. Easy to implement and beneficial to reducing the cost.

In one embodiment, the power tool is provided with a containing part, at least part of the first conductive part is embedded into the containing part, and at least part of the first mating part is embedded into the containing part; wherein at least part of the battery pack can be inserted into the accommodating part, so that the second conductive part is electrically connected with the first conductive part, and the second mating part is matched with the first mating part. Therefore, the accommodating part can protect the relevant structure of the battery pack connected with the electric tool, and the reliability is improved.

In one embodiment, at least one of the inner side wall of the accommodating cavity and the outer side wall of the battery pack is provided with an elastic anti-slip layer; and/or the inner side wall of the accommodating cavity is provided with an elastic bulge. So, utilize elasticity skid resistant course and/or elastic bulge to increase frictional force, realize the fastening cooperation of battery package and electric tool to when making first fitting piece and second fitting piece magnetism inhale the cooperation disconnection, the battery package can not be followed easily and held the chamber roll-off yet.

In one embodiment, one of the electric tool and the battery pack is provided with a guide rail, and the other is provided with a guide part which is matched with the guide rail in a guiding way. So, utilize the cooperation of guide rail and guide part for the battery package can set up on electric tool through external mode, and utilize the magnetism of first fitting piece and second fitting piece to inhale the cooperation and fix.

In one embodiment, the first conductive portion is tightly matched with the second conductive portion so that the battery pack is tightly fixed on the electric tool. Therefore, the first conductive part is tightly matched with the second conductive part, so that the battery pack cannot easily fall out of the electric tool when the first matching piece and the second matching piece are disconnected in a magnetic attraction matching mode.

According to a second aspect of the embodiments of the present disclosure, there is provided an assembly of a battery pack and a power tool, including a power tool and a battery pack; the power tool includes a first conductive portion and a first mating member; the battery pack includes a second conductive portion and a second mating member; when the electric tool is used, the battery pack is connected to the electric tool, and the first conductive part is matched with the second conductive part and used for providing electric energy for starting the electric tool; the first matching piece corresponds to the second matching piece, and when the electric tool starts to operate, the first matching piece and the second matching piece are matched in a magnetic attraction mode.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when the electric tool is connected with the battery pack, the first conductive part is connected with the second conductive part, so that the battery pack provides electric energy for the electric tool. When the electric tool starts operation, the first fitting piece and the second fitting piece are matched in a magnetic attraction mode, so that the electric tool and the battery pack are fixed firmly by the magnetic attraction mode, the battery pack cannot fall off due to reasons such as vibration, and the power supply of the electric tool in the using process is reliable.

The technical solution of the present disclosure is further explained below:

in one embodiment, when the electric tool is in the off state, the magnetic attraction between the second mating member and the first mating member is broken, and the battery pack is detachably arranged on the electric tool.

In one embodiment, when the battery pack is separated from the power tool, the magnetic attraction between the second mating member and the first mating member is disconnected.

In one embodiment, the assembly of the battery pack and the power tool further comprises a switch assembly, and the switch assembly is used for controlling the on-off of the magnetic attraction matching.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

Brief description of the drawingsthe accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not intended to limit the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic circuit diagram (in an open state) illustrating an assembly of a battery pack and a power tool according to an embodiment.

Fig. 2 is a schematic diagram of the circuit structure of the assembly shown in fig. 1 in an on state.

Fig. 3 is a schematic circuit diagram (in an open state) of the assembly of the battery pack and the power tool according to another embodiment.

Fig. 4 is a schematic structural diagram of an assembly of the battery pack and the power tool in an embodiment.

Fig. 5 is an exploded view of the battery pack and the power tool shown in fig. 4.

Fig. 6 is a schematic cross-sectional view of a-a shown in fig. 4.

Fig. 7 is a partial structural schematic view of an assembly of a battery pack and a power tool according to another embodiment.

Fig. 8 is an exploded view of the assembly of the battery pack and the power tool according to an embodiment.

Fig. 9 is a schematic structural view of the battery pack shown in fig. 8.

Fig. 10 is a partial structural schematic view of the assembly of the battery pack and the power tool shown in fig. 8.

Description of reference numerals:

100. an electric tool; 110. a first conductive portion; 111. inserting a pin; 112. an insulating protrusion; 120. a first mating member; 130. a motor; 140. an accommodating portion; 141. an accommodating chamber; 142. an elastic anti-slip layer; 143. an elastic bulge; 150. a guide rail; 200. a battery pack; 210. a second conductive portion; 211. a conductive via; 220. a second mating member; 230. a mating groove; 231. a through hole; 240. a guide portion; 300. a switch assembly; 310. an electrical interface; 320. an electrical connector.

Detailed Description

For the purpose of making the purpose, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail below with reference to the accompanying drawings and detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

At present, as electric tools such as a pruning tool, an electric drill tool, an electric saw tool, a mowing tool, and a blowing tool are used more and more widely, in order to improve convenience without being limited by a power supply line (e.g., commercial power) a battery pack is generally used for supplying power.

However, in the related art, since the usage environment of the electric power tool is complicated, the vibration is also large. In order to ensure that the power supply connection between the battery pack and the electric tool is reliable, the connection structure of the battery pack and the electric tool is complex, so that the battery pack and the electric tool are inconvenient to disassemble and assemble or even cannot be disassembled and assembled, and the maintenance or replacement efficiency of the battery pack is not improved.

Based on this, this disclosure provides a subassembly of battery package and electric tool, the easy dismounting of battery package and electric tool of being convenient for improves the maintenance and the change efficiency of battery package. When electric tool used simultaneously, can ensure that battery package and electric tool are fixed firm.

For a better understanding of the assembly of the battery pack and power tool of the present disclosure, reference is made to the following description taken in conjunction with the accompanying drawings.

Fig. 1-4 are views of the power tool and battery pack assembly shown in some embodiments. Fig. 1 is a schematic circuit diagram (in an open state) illustrating components of a battery pack and an electric tool according to an embodiment. Fig. 2 is a schematic diagram of the circuit structure of the assembly shown in fig. 1 in an on state. Fig. 3 is a schematic circuit diagram (in an open state) of the assembly of the battery pack and the power tool according to another embodiment. Fig. 4 is a schematic structural diagram of an assembly of the battery pack and the power tool in an embodiment.

As shown in fig. 1 to 3, in an embodiment of the present disclosure, an assembly including a power tool 100 and a battery pack 200 is provided, including the power tool 100, the battery pack 200, and a switch assembly 300, where the power tool 100 includes a first conductive part 110 and a first mating part 120 staggered from the first conductive part 110; the battery pack 200 is used for providing electric energy for the electric tool 100, the battery pack 200 is detachably connected with the electric tool 100, the battery pack 200 comprises a second conductive part 210 and a second mating piece 220, the second conductive part 210 is detachably connected with the first conductive part 110, and the second mating piece 220 is magnetically matched with the first mating piece 120; the switch assembly 300 is disposed on the power tool 100 and/or the battery pack 200, and the switch assembly 300 is used for controlling the on/off of the magnetic attraction.

In this way, when the power tool 100 is connected to the battery pack 200, the first conductive part 110 is connected to the second conductive part 210, so that the battery pack 200 provides power to the power tool 100. When the electric tool 100 is used, the switch assembly 300 is closed, so that the second fitting member 220 is magnetically coupled with the first fitting member 120, and the electric tool 100 and the battery pack 200 are firmly fixed by the magnetic coupling, and the battery pack 200 is prevented from falling off due to vibration and other reasons, so that the power supply of the electric tool 100 is reliable in the using process. When the battery pack 200 needs to be detached from the electric tool 100, the switch assembly 300 is turned off, so that the magnetic attraction matching between the second matching member 220 and the first matching member 120 is turned off, the battery pack 200 and the electric tool 100 can be conveniently detached, and the detachment efficiency can be improved.

It should be noted that the specific structural shape of the battery pack 200 may be various, including but not limited to a cylindrical shape, a polygonal prism shape, an irregular shape, and the like. Besides being detachably connected to the electric power tool 100, the battery pack 200 may also integrate other functions, such as lighting, mobile power pack function, power prompt function, etc., without being limited thereto.

The power tool 100 includes a pruning tool, an electric drill tool (shown in fig. 4), an electric saw tool, a mowing tool, a blowing tool (shown in fig. 8), and the like.

In some embodiments, the power tool 100 includes a motor, such as a servo motor 130, a linear motor 130, or the like.

The magnetic engagement between the second engaging member 220 and the first engaging member 120 can be achieved in various ways. For example, the first mating member 120 and the second mating member 220 are both electromagnetic attraction members; alternatively, the second mating member 220 is a magnetically attracted member, and the first mating member 120 is an electromagnetic attracted member; alternatively, the second engaging element 220 is an electromagnetic attraction element, and the first engaging element 120 is a magnetically attracted element.

The electromagnetic absorption piece comprises an electromagnet, or an electromagnetic suction cup, an electromagnetic absorption strip and the like which are made by utilizing the electromagnetic principle. The magnetically attracted member includes a member capable of being magnetically attracted, such as iron.

In addition to any of the above embodiments, in an embodiment, at least one of the first matching element 120 and the second matching element 220 is an electromagnetic attraction element, and the other is an electromagnetic attraction element or a magnetically attracted element, and the switch assembly 300 is connected in series with the electromagnetic attraction element to control on/off of the electromagnetic attraction element. Therefore, when the switch assembly 300 is closed, the electromagnetic attraction piece is in a closed state, and after the electromagnetic attraction piece is electrified, magnetic force can be generated to attract and fix the magnetically attracted piece or the other electromagnetic attraction piece. When the switch assembly 300 is turned off, the electromagnetic attraction element is in an open circuit state, and no electromagnetic attraction force is generated, so that the first mating element 120 and the second mating element 220 can be conveniently separated, and the electric tool 100 and the battery pack 200 can be conveniently disassembled. Namely, the on-off control of the magnetic attraction matching is realized only by controlling the switch component 300 to be closed.

The switch assembly 300 includes a movable switch and an inductive switch, wherein the movable switch includes a button switch, a knob switch, a toggle switch, a separable switch, a dome switch, etc. The switch assembly 300 can be disposed on the battery pack 200 or the power tool 100 or the battery pack 200 and the power tool 100, as long as the magnetic connection between the first mating member 120 and the second mating member 220 can be achieved.

In some embodiments, the switch assembly 300 only controls the electromagnetic attraction to be turned on or off. In this case, the switch assembly 300 may include more than one switch.

In some embodiments, the switch assembly 300 simultaneously controls the on and off of the electromagnetic attraction and other electrical devices.

In still other embodiments, the switch assembly 300 includes at least two switches, and the electromagnet can be in the on state when both switches are closed.

Such as switch assembly 300, includes a first switch and a second switch. The first switch is disposed on the battery pack 200; the second switch is partially arranged on the battery pack 200 and partially arranged on the electric tool 100; or the second switch may be provided on the power tool 100. When the first switch and the second switch are both closed, the electromagnetic absorbing piece can be in a closed state.

If the first switch is the main switch of the battery pack 200, the second mating member 220 is an electromagnetic attraction member. When the battery pack 200 is not used for supplying power to the power tool 100, the second switch is in an off state, so that the electromagnetic absorbing piece is in an off state; the first switch is closed, which can supply power to other electrical devices of the battery pack 200, such as a lighting lamp or a charging interface. Thus, unnecessary electric energy waste can be reduced, and the cruising ability of the battery pack 200 can be improved.

On the basis of the above embodiments, in an embodiment, the switch assembly 300 includes a separable switch, the separable switch includes a female socket 310 and a mating body 320 that is in on-off fit with the female socket 310, one of the female socket 310 and the mating body 320 is disposed on the electric tool 100, and the other is disposed on the battery pack 200; when the battery pack 200 is connected to the power tool 100, the first conductive part 110 is connected to the second conductive part 210, and the mating body 320 is connected to the female socket 310, so as to allow the electromagnetic component to pass through. In this way, in the process of inserting the battery pack 200 into the electric tool 100, the engaging body 320 can engage with the corresponding female socket 310, so that the electromagnetic attraction element is in the on state, and when the battery pack 200 is powered on, the electromagnetic attraction element can be powered on to generate the magnetic attraction force, so that the first engaging element 120 and the second engaging element 220 are electromagnetically attracted and fixed, and the battery pack 200 is reliably fixed on the electric tool 100. When the battery pack 200 needs to be disassembled, the power-off can be realized only by closing the battery pack 200. And then can realize the on-off control of switch module 300 through the action of plugging and unplugging, and then realize the on-off control of electromagnetic attraction spare, convenient operation.

The separable switch comprises an induction switch, a sheet insertion switch and the like.

In addition, as shown in fig. 1 and fig. 2, in some embodiments, the first mating member 120 is a magnetically attracted member, the second mating member 220 is an electromagnetic attracted member, and the switch assembly 300 is disposed on the battery pack 200 to control the electromagnetic attracted member to be turned on or off; alternatively, as shown in fig. 3, the first engaging element 120 is an electromagnetic engaging element, the second engaging element 220 is a magnetically engaged element, and the switch assembly 300 is disposed on the power tool 100 to control the on/off of the electromagnetic engaging element. Therefore, the method can be flexibly selected according to actual needs to meet different requirements.

Based on any of the above embodiments of the electromagnetic attraction element, as shown in fig. 3, in an embodiment, the electric tool 100 further includes a motor 130, the first engaging element 120 is an electromagnetic attraction element disposed on the electric tool 100, and the electromagnetic attraction element is disposed in parallel with the motor 130. Thus, the electromagnetic attraction piece is connected in parallel with the motor 130, so that the stronger the power of the motor 130 is, the stronger the magnetic force generated by the electromagnetic attraction piece is, and the firmness of fixing the battery pack 200 is further improved.

The first conductive portion 110 and the second conductive portion 210 can be implemented in various ways, such as a plug fit, an interference fit, a socket fit, and the like.

In one embodiment, one of the first conductive part 110 and the second conductive part is an electrical interface, and the other is an electrical connector. Therefore, the method is easy to implement and is beneficial to reducing the cost.

On the basis of any of the above embodiments, as shown in fig. 4 to 6, in some embodiments, the power tool 100 is provided with the accommodating portion 140, at least a part of the first conductive portion 110 is embedded in the accommodating portion 140, and at least a part of the first mating member 120 is embedded in the accommodating portion 140; at least a portion of the battery pack 200 may be inserted into the receiving portion 140, such that the second conductive portion 210 is electrically connected to the first conductive portion 110, and the second mating member 220 is mated with the first mating member 120. In this way, the first conductive part 110 and the first mating part 120 are disposed in the accommodating part 140, and the battery pack 200 can be at least partially inserted into the accommodating part 140, such that the second conductive part 210 is electrically connected to the first conductive part 110, and the second mating part 220 is mated with the first mating part 120, and further, the accommodating part 140 can protect the connection structure between the battery pack 200 and the electric tool 100, thereby further improving the reliability of the mating between the battery pack 200 and the electric tool 100.

On the basis of any of the above embodiments, as shown in fig. 4 to 7, in an embodiment, the accommodating portion 140 is provided with an accommodating cavity 141 for accommodating the battery pack 200, the inner wall of the accommodating cavity 141 is provided with the first fitting 120, and the battery pack 200 is fitted with the accommodating cavity 141. In this way, the battery pack 200 is adapted to the accommodating cavity 141, so that the battery pack 200 and the power tool 100 are more tightly fitted.

Optionally, in an implementation, the cross section of the accommodating cavity 141 is a non-circular hole. In this way, the fool-proof function can be achieved, so that the battery pack 200 can be pushed into the accommodating cavity 141 only along the preset direction.

On the basis of any of the above embodiments of the accommodating cavity 141, in an embodiment, at least one of the inner side wall of the accommodating cavity 141 and the outer side wall of the battery pack 200 is provided with an elastic anti-slip layer 142; and/or, the inner side wall of the accommodating chamber 141 is provided with an elastic protrusion 143. Thus, the elastic anti-slip layer 142 and/or the elastic protrusion 143 are used to increase friction force, so as to achieve a tight fit between the battery pack 200 and the power tool 100, so that the battery pack 200 cannot easily slip out of the accommodating cavity 141 when the first fitting member 120 and the second fitting member 220 are separated from each other by magnetic attraction.

On the basis of any of the above embodiments of the accommodating cavity 141, as shown in fig. 4 to fig. 7, in an embodiment, the first conductive part 110 and the first mating part 120 are disposed at the bottom of the accommodating cavity 141 in a staggered manner, and the first conductive part 110 includes a pin 111 at least partially protruding out of the bottom wall of the accommodating cavity 141; the second conductive portion 210 has conductive holes 211 electrically coupled to the pins 111. In this way, in the process of inserting the battery pack 200 into the accommodating cavity 141, the pins 111 can be inserted into the conductive holes 211, so as to connect the first conductive part 110 and the second conductive part 210; when the device is pulled out, the device can be separated from the device, and the operation is convenient.

On the basis of any of the above embodiments, as shown in fig. 4 to 7, in an embodiment, the first conductive part 110 includes an insulating protrusion 112 protruding from the bottom wall of the accommodating cavity 141, a part of the pins 111 is embedded in the insulating protrusion 112, and a part of the pins 111 is protruding from the insulating protrusion 112; one end of the battery pack 200 is provided with a fitting groove 230 tightly fitted with the insulating protrusion 112, and the bottom wall of the fitting groove 230 is provided with through holes 231 corresponding to the conductive holes 211 one to one. In this way, by the fastening fit of the insulating protrusion 112 and the fitting groove 230, when the first fitting member 120 and the second fitting member 220 are separated from the magnetic fitting, the battery pack 200 cannot easily slip out of the accommodating cavity 141.

As shown in fig. 8 and 10, in another embodiment, one of the electric power tool 100 and the battery pack 200 is provided with a guide rail 150, and the other is provided with a guide portion 240 which is in guiding fit with the guide rail 150. Thus, by the cooperation of the guide rail 150 and the guide portion 240, the battery pack 200 can be disposed on the electric tool 100 in an externally-hanging manner, and can be fixed by the magnetic attraction between the first fitting member 120 and the second fitting member 220, so that the battery pack is more convenient to assemble and disassemble.

The specific implementation of the guide rail 150 and the guide portion 240 can be various, such as a "V" type guide rail and a "V" guide portion, a "convex" type guide rail and a "concave" guide portion, and so on.

In one embodiment, the guide rail 150 is a rib and the guide portion 240 is a groove.

In addition, on the basis of the above embodiment, in an embodiment, the first conductive part 110 is tightly fitted with the second conductive part 210, so that the battery pack 200 is fastened to the power tool 100. Thus, by the fastening fit between the first conductive part 110 and the second conductive part 210, the battery pack will not easily fall out of the electric tool when the first mating member 120 and the second mating member 220 are separated by the magnetic attraction fit, and the cost can be saved.

Specifically, the first conductive portion 110 and the second conductive portion 210 can be tightly fitted as shown in fig. 7.

In other embodiments, the battery pack and the power tool may further have other fastening structures, so that the battery pack may not easily fall out of the power tool when the first engaging member 120 and the second engaging member 220 are separated from each other by magnetic attraction.

On the basis of any of the above embodiments, in an embodiment, the battery pack 200 or the electric power tool 100 is provided with a prompting device for sending a prompting message. The prompting device comprises a prompting sound or a prompting lamp to prompt that the battery pack 200 and the electric tool 100 are connected in place, and the power-on is reliable.

It should be noted that the "insulating protrusion 112" may be "a part of the housing of the power tool 100", that is, the "insulating protrusion 112" is integrally formed with "the other part of the housing of the power tool 100"; the "insulating protrusion 112" may be manufactured separately from a separate member that is separable from "other parts of the housing of the power tool 100", and may be combined with "other parts of the housing of the power tool 100, such as the second connector" to form a single body.

Equivalently, the "body" and the "certain part" can be parts of the corresponding "component", i.e., the "body" and the "certain part" are integrally manufactured with other parts of the "component"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expression "a certain body" or "a certain portion" in the present disclosure is only one example, and is not intended to limit the scope of the present disclosure, so long as the above features are included and the same function is understood to be equivalent to the present disclosure.

It should be noted that the "second conductive part 210" may be one of the parts of the module "battery pack 200", that is, assembled with the "other components of the battery pack 200" into one module, and then assembled in a modular manner; the battery pack may be mounted separately from the other members of the battery pack 200, i.e., the battery pack may be integrated with the other members of the battery pack 200 in the present apparatus.

Equivalently, the components included in the "assembly", "tool" and "device" of the present disclosure can be flexibly combined, i.e., can be produced in a modularized manner according to the actual situation, and can be assembled in a modularized manner as an independent module; the modules may be assembled separately, and one module may be constructed in the present apparatus. The division of the above-mentioned components in the present disclosure is only one embodiment, which is convenient for reading and not limiting the scope of protection of the present disclosure, and the technical solutions equivalent to the present disclosure should be understood as if they are included and the functions are the same.

Referring to fig. 1 or 3, in another embodiment of the present disclosure, an assembly of a battery pack and a power tool is provided, including a power tool 100 and a battery pack 200; the power tool 100 includes a first conductive portion 110 and a first mating member 120; the battery pack 200 includes a second conductive part 210 and a second mating member 220; when the power tool 100 is used, the battery pack 200 is connected to the power tool 100, and the first conductive part 110 and the second conductive part 210 are matched to provide electric energy for starting the power tool 100; the first mating member 120 corresponds to the second mating member 220, and when the power tool 100 starts to work, the first mating member 120 is magnetically engaged with the second mating member 220.

When the power tool 100 is connected to the battery pack 200, the first conductive part 110 is connected to the second conductive part 210, so that the battery pack 200 provides power to the power tool 100. When the electric tool 100 is started, the first fitting member 120 and the second fitting member 220 are magnetically engaged, so that the electric tool 100 and the battery pack 200 are firmly fixed by the magnetic engaging method, and the battery pack is prevented from falling off due to vibration and the like, so that the power supply of the electric tool is reliable during the use process.

The start and stop of the electric tool can be controlled in various ways, such as a control switch and/or a control program.

In some embodiments, the on-off of the first matching piece and the second matching piece can be intelligently controlled through programs, the linkage with the start and stop of the electric tool is realized, the energy consumption can be effectively reduced, and the convenience of operation can be improved.

In some embodiments, when the power tool is in the off state, the magnetic attraction between the second mating member and the first mating member is broken, and the battery pack is detachably disposed on the power tool. So, when needs are dismantled the battery package from electric tool, electric tool stops the operation, and when being in the off-state, first fitting piece and second fitting piece magnetism inhale the cooperation disconnection, are convenient for dismantle the battery package from electric tool, are favorable to improving dismantlement efficiency.

In some embodiments, the magnetic attraction between the second mating member and the first mating member is disconnected when the battery pack is separated from the power tool. Therefore, the electric energy can be effectively prevented from being lost.

In some embodiments, the assembly of the battery pack and the power tool further comprises a switch assembly for controlling the on-off of the magnetic attraction fit. Therefore, the on-off control of the first matching piece and the second matching piece can be realized by combining any embodiment of the switch assembly, and various magnetic attraction on-off control modes are integrated to meet different control requirements of operators.

Specifically, referring to fig. 1 and 2, when the power tool 100 is connected to the battery pack 200, the first conductive part 110 is connected to the second conductive part 210, so that the battery pack 200 provides power to the power tool 100. The switch assembly 300 is closed, so that the second fitting member 220 and the first fitting member 120 are magnetically engaged, and the electric tool 100 and the battery pack 200 are firmly fixed by the magnetic manner, and the battery pack 200 is not dropped due to vibration or the like, so that the power supply of the electric tool 100 is reliable in the using process. When the battery pack 200 needs to be detached from the electric tool 100, the switch assembly 300 is turned off, so that the magnetic attraction matching between the second matching member 220 and the first matching member 120 is turned off, the battery pack 200 and the electric tool 100 can be conveniently detached, and the detachment efficiency can be improved.

In the description of the present disclosure, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show several embodiments of the present disclosure, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the concept of the present disclosure, and these changes and modifications are all within the scope of the present disclosure.

Claims (14)

1. An assembly of a battery pack and a power tool, comprising:

a power tool including a first conductive portion and a first mating member offset from the first conductive portion;

the battery pack is used for providing electric energy for the electric tool, the battery pack is detachably connected with the electric tool and comprises a second conductive part and a second fitting piece, the second conductive part is detachably connected with the first conductive part, and the second fitting piece is in magnetic attraction fit with the first fitting piece; and

the switch assembly is arranged on the electric tool and/or the battery pack and used for controlling the on-off of the magnetic attraction matching.

2. The assembly of the battery pack and the power tool as claimed in claim 1, wherein at least one of the first engaging member and the second engaging member is an electromagnetic attraction member, and the other one of the first engaging member and the second engaging member is an electromagnetic attraction member or a magnetically attracted member, and the switch assembly is connected in series with the electromagnetic attraction member to control the on/off of the electromagnetic attraction member.

3. The assembly of the battery pack and the power tool as claimed in claim 2, wherein the first engaging member is a magnetically attracted member, the second engaging member is the electromagnetic attracted member, and the switch assembly is disposed on the battery pack to control the electromagnetic attracted member to be turned on or off;

or, the first fitting piece is the electromagnetic attraction piece, the second fitting piece is a magnetically attracted piece, and the switch assembly is arranged on the electric tool to control the on-off of the electromagnetic attraction piece.

4. The assembly of a battery pack and a power tool as claimed in claim 2, wherein the power tool further comprises a motor, the first engaging member is an electromagnetic attraction member, the electromagnetic attraction member is disposed on the power tool, and the electromagnetic attraction member is disposed in parallel with the motor.

5. The battery pack and power tool assembly of claim 1, wherein one of the first and second conductive portions is an electrical interface and the other is an electrical connector.

6. The battery pack and power tool assembly of any one of claims 1 to 5, wherein the power tool is provided with a receiving portion, at least a portion of the first conductive portion is disposed in the receiving portion, and at least a portion of the first mating member is disposed in the receiving portion; wherein at least a portion of the battery pack is insertable into the receiving portion such that the second conductive portion is electrically connected to the first conductive portion, and the second mating member is mated with the first mating member.

7. The assembly of the battery pack and the power tool as claimed in claim 6, wherein the accommodating portion is provided with an accommodating cavity for accommodating the battery pack, the inner wall of the accommodating cavity is provided with the first engaging member, and the battery pack is adapted to the accommodating cavity.

8. The battery pack and power tool assembly of claim 7, wherein at least one of the inner side wall of the receiving cavity and the outer side wall of the battery pack is provided with an elastic anti-slip layer;

and/or the inner side wall of the accommodating cavity is provided with an elastic bulge.

9. The battery pack and power tool assembly of any one of claims 1 to 5, wherein one of the power tool and the battery pack is provided with a guide rail, and the other is provided with a guide portion in guiding engagement with the guide rail.

10. The battery pack and power tool assembly of claim 9, wherein the first conductive portion is in secure engagement with the second conductive portion to secure the battery pack to the power tool.

11. An assembly of a battery pack and a power tool, comprising:

the power tool includes a first conductive portion and a first mating member;

the battery pack includes a second conductive portion and a second mating member; and

when the electric tool is used, the battery pack is connected to the electric tool, and the first conductive part is matched with the second conductive part and used for providing electric energy for starting the electric tool; the first matching piece corresponds to the second matching piece, and when the electric tool is started to operate, the first matching piece is in magnetic attraction matching with the second matching piece.

12. The assembly of the battery pack and the power tool as claimed in claim 11, wherein the second engaging member is magnetically attracted to the first engaging member when the power tool is in the off state, and the battery pack is detachably disposed on the power tool.

13. The battery pack and power tool assembly of claim 11, wherein the second mating member is magnetically decoupled from the first mating member when the battery pack is separated from the power tool.

14. The assembly of the battery pack and the power tool as claimed in claim 12 or 13, further comprising a switch assembly for controlling the magnetic attraction to be engaged and disengaged.

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