CN113858136A - Electric tool - Google Patents
Electric tool Download PDFInfo
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- CN113858136A CN113858136A CN202110989800.0A CN202110989800A CN113858136A CN 113858136 A CN113858136 A CN 113858136A CN 202110989800 A CN202110989800 A CN 202110989800A CN 113858136 A CN113858136 A CN 113858136A
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- Prior art keywords
- unit module
- housing
- transmission
- train unit
- power tool
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- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 238000009423 ventilation Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- Portable Power Tools In General (AREA)
Abstract
The invention relates to an electric tool, which comprises an electric tool shell and a power train unit module, wherein the power train unit module at least comprises a motor and a transmission, the electric tool shell comprises a first shell element and a second shell element, the first shell element and the second shell element are matched with each other along the direction of a driving axis of the power train unit module to form a containing cavity suitable for containing the power train unit module, the power train unit module further comprises a connecting piece positioned between the motor and the transmission, the connecting piece is suitable for connecting the motor and the transmission into a whole, one end of the connecting piece is connected with one end of the transmission, the other end of the connecting piece extends along the direction of the driving axis to cover the motor and extends to be fixedly connected with the second shell element, and the other end of the transmission is fixedly connected with the first shell element. The electric tool provided by the technical scheme is modular and compact in structure.
Description
The invention relates to a divisional application of an intellectual property office of the people's republic of China, with the application number of CN202010398908.8 and the name of ' an electric tool shell and an electric tool ', which is submitted in 5-month and 12-day 2020.
Technical Field
The present invention relates to the field of power tools.
Background
As one of common application tools, electric tools such as electric drills, electric saws, cutting machines, angle grinders and the like are available, and the application range is very wide, and the electric tools comprise mechanical industry, building decoration, landscaping, wood industry processing, financial processing and the like, and play an indispensable role in the development of social economy. The electric tool is gradually switched to clean energy for power supply by virtue of the breakthrough of the lithium battery technology, the battery capacity and the safety of the electric tool are expected to be greatly improved, and the battery cost is continuously reduced. With the increase of the popularity of families, electric tools need to have multiple purposes, and the breakthrough of electronic control technology and intelligent tools gradually enter families. If more people buy furniture through the network, the intelligent lock is assembled by themselves, and the electric tool is inevitably used for repairing and DIY manufacturing of electric appliances in a home, the requirement of people on the electric tool becomes higher. The conventional electric tool is too large in size and heavy in weight, so that the electric tool is inconvenient for some people, particularly for women with small strength, and the electric tool is required to be miniaturized and lightened under the condition that the performance is not influenced as much as possible. Thanks to the development of the lithium battery industry, the density of the battery is gradually increased, and the lithium battery with the same capacity can be made smaller. At this time, the housing of the electric tool is also required to be made as small as possible, and if the housing of the electric tool is fixed by screws and the components inside the housing are fixed by reinforcing ribs like a conventional electric tool, the size of the electric tool is difficult to become smaller, and the screws on the surface of the electric tool also affect the appearance and the use hand feeling of the electric tool.
Disclosure of Invention
The invention aims to provide a modular and compact electric tool.
The invention provides an electric tool, which comprises an electric tool shell and a power train unit module arranged in the electric tool shell, wherein the power train unit module at least comprises a motor and a transmission, the electric tool shell comprises a first shell element and a second shell element, and the first shell element and the second shell element are matched with each other along the direction of a driving axis of the power train unit module to form a cavity suitable for containing the power train unit module, wherein:
the drive train unit module further comprises a connecting piece located between the motor and the transmission, the connecting piece is suitable for connecting the motor and the transmission into a whole, one end of the connecting piece is connected with one end of the transmission, the other end of the connecting piece extends along the direction of the driving axis to cover the motor and extends to be fixedly connected with the second shell element, and the other end of the transmission is fixedly connected with the first shell element.
Further, the power tool also includes an end cap coupled to the second housing member, the end cap adapted to conceal the coupling structure of the coupling member to the second housing member.
Further, the end cover is also provided with at least one ventilation opening, and the ventilation opening is suitable for communicating the inner area of the electric tool shell with the outside.
Further, the connection member is snap-fit or screw-connected to the second housing element.
Further, the transmission is screwed to the first housing element.
Further, the connecting piece is detachably connected with the transmission.
Further, the connecting piece is in key connection or pin connection or snap connection with the transmission.
Further, the end cap is fixedly attached to the second housing member by a locking structure.
Another object of the present invention is to provide a power tool having a concealed power tool portion connection structure.
The invention provides an electric tool, which comprises an electric tool shell and a power train unit module arranged in the electric tool shell, wherein the power train unit module at least comprises a motor and a transmission, the electric tool shell comprises a first shell element and a second shell element, and the first shell element and the second shell element are matched with each other along the direction of a driving axis of the power train unit module to form a cavity suitable for containing the power train unit module, wherein:
the drive train unit module further comprises a connecting piece located between the motor and the transmission, the connecting piece is suitable for connecting the motor and the transmission into a whole, the connecting piece is further provided with a locking structure suitable for connecting the drive train unit module and the second shell element together, an end cover is arranged at the other end of the second shell element, and the end cover is suitable for hiding the connecting structure of the connecting piece and the second shell element.
Further, the end cover is also provided with at least one ventilation opening, and the ventilation opening is suitable for communicating the inner area of the electric tool shell with the outside
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the electric tool shell component and the electric tool shell and the internal component are fixed under the condition that the screws are used as few as possible, so that the use of the screws is reduced, the electric tool can be made smaller and more compact, and the influence of the screws on the surface of the shell on the appearance of the electric tool is avoided;
(2) the connecting structure of each part of the electric tool is hidden, so that the bulges on the surface of the shell of the electric tool are reduced, and the aesthetic feeling of the appearance of the electric tool can be improved;
(3) two ends of a transmission system unit module in the electric tool are fixedly connected with the electric tool shell, so that the distance of the electric tool in the axial direction of the transmission system unit is reduced, and the size of the electric tool is smaller; meanwhile, the motor is fixed inside the connecting piece, so that the electric tool is better in anti-seismic performance and more firm in structure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic perspective view of an electric power tool according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of a power tool provided by an embodiment of the present invention;
FIG. 3 is a schematic assembly view of a power tool provided by an embodiment of the present invention;
FIG. 4 is a schematic view of an assembled power tool provided by an embodiment of the present invention;
FIG. 5 is an exploded view of a power tool provided by an embodiment of the present invention;
FIG. 6 is an exploded view of a power tool provided by an embodiment of the present invention;
FIG. 7 is a schematic diagram of a drive train unit module provided by an embodiment of the present invention;
fig. 8 is a schematic structural view of a motor housing according to an embodiment of the present invention;
FIG. 9 is a partially exploded perspective view of a power tool provided by an embodiment of the present invention;
wherein 1-first housing element, 2-second housing element, 3-contact line, 4-handle, 5-chuck, 6-end cap, 7-drive train unit module, 71-motor, 72-transmission, 711-motor housing, 7111-annular groove, 8-controller unit module, 9-battery unit module.
Detailed Description
The following description is of some of the many possible embodiments of the invention and is intended to provide a basic understanding of the invention and is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. It is easily understood that according to the technical solution of the present invention, other implementations that can be substituted with each other can be suggested by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
In the following description, for clarity and conciseness of description, not all of the various components shown in the figures are described. The various components shown in the figures provide those skilled in the art with a fully enabled disclosure of the invention. The operation of many of the components is familiar and obvious to those skilled in the art.
In this document, directional terms such as "upper", "lower", "left", "right", "front", "rear", "lateral", "longitudinal", "facing" and "facing away" are defined with respect to the orientation of the power tool in the drawings after installation in use or with respect to the orientation shown in the drawings, and it is to be understood that these directional terms are relative concepts which are used for descriptive and clarity with respect to the description and clarification and which may vary accordingly with variations in the orientation of the power tool.
Example (b):
the present embodiment provides a power tool housing comprising at least one first housing element 1 and at least one second housing element 2, said first housing element 1 and said second housing element 2 being connected together along at least one contact line 3 and/or contact surface. In this embodiment, the power tool is a hand-held power tool, in particular a lithium-ion drill. The power tool housing comprises a grip 4 for gripping, wherein the grip 4 is at least partially formed by the first housing element 1 or the second housing element 2.
Further, the handle 4 of the electric power tool may be formed by a part of the first housing member 1 or the second housing member 2 alone, or by a part of the first housing member 1 and a part of the second housing member 2 being connected to each other. As shown in fig. 1-9, in this embodiment the handle 4 of the lithium power drill is formed by splicing together portions of the first housing element 1 and portions of the second housing element 2.
Further, the first housing element 1 and the second housing element 2 are housings having a receiving area with a three-dimensional shape, the first housing element 1 and the second housing element 2 are of an integrally formed structure, preferably the housing elements are formed of plastic, which may also be made of metal, composite or other materials. In the present embodiment, the first housing element 1 and the second housing element 2 are both made of plastic by integral molding.
Further, the first housing element 1 and the second housing element 2 form a housing of the electric power tool by being spliced, the first housing element 1 and the second housing element 2 are provided with a latch structure along the inner wall of the contact line 3 and/or the contact surface, and the first housing element 1 and the second housing element 2 are fixedly connected together by the latch structure. The first housing element 1 and the second housing element 2 are formed by a joint having an area for accommodating internal components of the power tool, including the motor 71, the transmission, the control and/or regulating unit.
In the present embodiment, the contact line 3 between the first housing element 1 and the second housing element 2 is partially located on the handle 4, the contact line 3 is located on the side of the handle 4 and on the side facing away from the tool, which refers to the direction opposite to the forward direction of the lithium electric drill, of the handle 4; the contact line 3 is a separating edge formed in the assembled state of the first housing element 1 and the second housing element 2, the contact line 3 corresponding to the course of the separating edge of the first housing element 1 or the second housing element 2.
Furthermore, a battery receiving chamber is provided inside the handle 4, which is at least partially formed by the first housing element 1 and/or the second housing element 2;
further, the battery accommodating chamber is formed by connecting the first casing member 1 and the second casing member 2, and the first casing member 1 includes an annular casing portion accommodating the battery unit;
further, the first housing element 1 and the second housing element 2 are connected to each other by locking means provided on the inner wall of the housing elements. Preferably, the locking structures are provided at separate edges of the first and second housing members 1 and 2, respectively, and are not visible on the exterior of the power tool housing. Preferably, the locking structure is a clamping element, a tongue element, a snap element or a mortise joint which can be hidden. In this embodiment, the inner walls of the first housing element 1 and the second housing element 2 are provided with latch structures for quickly connecting the first housing element 1 and the second housing element 2. Preferably, the first housing element 1 and/or the second housing element 2 are further provided with guiding structures for facilitating the connection of the first housing element 1 and the second housing element 2 in the direction of the contact line 3.
Example (b):
the present embodiments provide a power tool that is a lithium electric drill. The lithium electric drill adopts a modular assembly structure, and comprises an electric tool shell, a transmission system unit module 7, a controller unit module 8 and a battery unit module 9 which are arranged inside the electric tool shell, wherein the transmission system unit module 7, the controller unit module 8 and the battery unit module 9 are fixedly connected with the electric tool shell. The power train unit module 7 is fixedly connected with the electric tool shell element through a locking structure arranged on the power train unit module 7, the controller unit module 8 is fixed in the electric tool shell through a limiting groove in the inner wall of the electric tool shell element, and the battery unit module 9 is fixedly connected with the electric tool shell through a buckling structure.
Further, at least parts of the first and second housing elements 1, 2 are fixed to each other in the direction of the drive axis of the drive train unit module 7.
Further, the power train unit module 7 is fixedly connected with the electric tool housing element through a locking structure arranged on the power train unit module 7;
optionally, a part of the power train unit module 7 is fixedly connected to the first housing element 1 and/or the second housing element 2 through a locking structure, and one end of the power train unit module 7 abuts against an inner wall of the first housing element 1 and/or the second housing element 2, so as to fix the power train unit module 7 in the inner region of the housing of the electric power tool;
optionally, both ends of the drive train unit module 7 are fixedly connected to the first housing element 1 and/or the second housing element 2;
optionally, one end of the drive train unit module 7 is fixedly connected with the first housing element 1 through at least one screw, and the other end of the drive train unit module 7 is fixedly connected with the second housing element 2 through at least one screw;
alternatively, one end of the power train unit module 7 is fixedly connected with the first housing element 1 through a snap structure, and the other end of the power train unit module 7 is fixedly connected with the second housing element 2 through a snap structure, in this way, the whole electric tool may not need one screw for fixing.
In this embodiment, one end of the power train unit module 7 is fixedly connected with the first housing element 1 through at least one screw, and the other end of the power train unit module 7 is fixedly connected with the second housing element 2 through a snap structure;
furthermore, the drive train unit module 7 comprises an electric motor 71, a transmission 72 and at least one connection element, which connects the electric motor 71 and the transmission 72 together and is provided with a connection to the first housing element 1 and/or the second housing element 2.
Optionally, the connecting member is located between the motor 71 and the transmission 72, and connects the motor 71 and the transmission 72 together, and a locking structure is further provided on the connecting member, and the locking structure connects the power train unit module 7 and the first housing member 1 and/or the second housing member 2 together.
Optionally, the drive train unit module 7 includes a motor 71 and a transmission 72, one end of a housing of the transmission 72 is provided with a limiting structure, the motor 71 is fixed on the transmission 72 through the limiting structure, and the other end of the housing of the transmission 72 is fixedly connected with the first housing element 1 and/or the second housing element 2 through at least one fastener.
Optionally, the connecting element covers the motor 71, one end of the connecting element is connected to the transmission 72, and the other end of the connecting element is fixedly connected to the first housing element 1 and/or the second housing element 2 through a locking structure; the coupling may be keyed, pinned, snap-fit, or otherwise removably coupled to the transmission 72.
In the present embodiment, the power train unit module 7 includes a motor 71, a transmission 72, and a motor housing 711, the motor 71 is disposed inside the motor housing 711, and one end of the motor housing 711 is fixedly connected to the second housing member 2 by a snap structure. As shown in fig. 5 and 7, an end of the motor housing 711 connected to the second housing member 2 is provided with an annular groove 7111, and a rear end of the second housing member 2 is provided with an annular baffle plate which is snapped into the annular groove 7111 to fixedly connect the drive train unit module 7 and the second housing member 2.
Further, the motor housing 711 is further provided with a positioning structure for limiting the motor 71 in the motor housing 711, and two ends of the motor 71 abut against the positioning structure for limiting the displacement of the motor 71 in the axial direction.
Further, a limiting structure is arranged at one end of the other end of the motor housing 711 connected with the transmission 72, the limiting structure comprises a slot on the shell of the transmission 72 and a protrusion on the motor housing 711, and the motor housing 711 and the shell of the transmission 72 are detachably connected through a pin.
Optionally, the connecting member covers the motor 71 and the transmission 72, the motor 71 and the transmission 72 are fixedly disposed in the connecting member, a fixing structure for fixing the motor 71 and the transmission 72 is disposed in the connecting member, and two ends of the connecting member are fixedly connected to the first housing element 1 and/or the second housing element 2.
In particular, the fixed connection of the connecting element or transmission 72 housing to the first housing element 1 and/or the second housing element 2 can be connected together by means of a snap connection, a screw connection, screws or the like.
Further, an end cover 6 is further disposed on the electric tool, and the end cover 6 is used for hiding a connection structure of the power train unit module 7 and the first housing element 1 and/or the second housing element 2, in this embodiment, the connection structure is a snap structure.
Furthermore, the end cover 6 is also provided with at least one vent, and the vent communicates the internal area of the electric tool shell with the outside air for dissipating heat of internal components of the electric tool.
Further, the end cap 6 is fixed to the first housing element 1 and/or the second housing element 2 by a locking structure, which in this embodiment is a snap connection.
Further, the power tool further comprises at least one chuck 5 driven by a transmission 72, wherein the chuck 5 is connected to the transmission 72 to hide the connection between the power train unit module 7 and the first housing element 1, and in this embodiment, the power train unit module 7 is fixedly connected to the first housing element 1 by at least one screw.
Example (b):
the present embodiment provides a method for assembling a power tool.
In at least one method step, the internal components of the power tool are assembled in a modular manner.
In at least one method step, the at least one first housing element and the at least one second housing element are fixed to one another in the direction of the drive axis of the at least one drive train unit module.
In at least one method step, the drive train unit module is fixedly connected to the first housing element and/or the second housing element.
In at least one method step, at least one locking structure is provided on the drive train unit module and the first housing element and/or the second housing element, which locking structure secures the drive train unit module and the first housing element and/or the second housing element together.
In at least one method step, at least one connection element is provided in the drive train unit module, which connection element connects the electric machine and the transmission in the drive train unit module, wherein the connection element is fixedly connected to the first housing element and/or the second housing element.
In at least one method step, at least one motor housing is included for accommodating the motor, one end of the motor housing is fixedly connected with the second housing through a buckle, and the other end of the motor housing is connected with the transmission housing through a pin.
In at least one method step, the drive train unit module is fixed to the first housing element or the second housing element by means of at least one screw.
In at least one method step, the first housing element and/or the second housing element is provided with a latching means along the contact line and/or the inner wall edge of the contact surface.
In at least one method step, at least one end cap is provided on the power tool for concealing the connection of the drive train unit module to the first housing element and/or the second housing element.
In at least one method step, at least one vent is provided in the end cap, the vent being configured to dissipate heat from the internal components of the power tool.
The electric tool fixes the shell elements of the electric tool and the shell and the internal components of the electric tool under the condition of using the screws as few as possible, so that the use of the screws is reduced, and meanwhile, the two ends of the transmission system unit module in the electric tool are fixedly connected with the shell of the electric tool, so that the distance of the electric tool in the axial direction of the transmission system unit is reduced, and the electric tool can be smaller and more compact and has a more compact structure. On the other hand, the electric tool adopts a modularized assembling mode, so that the assembling efficiency is improved.
The above examples mainly describe the electric tool case, the electric tool, and the method of assembling the electric tool according to the present invention. Although only one embodiment of a lithium power drill is described in connection with a power tool, it should be appreciated by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. A power tool comprising a power tool housing and a drive train unit module disposed within the power tool housing, the drive train unit module including at least a motor and a transmission, the power tool housing including a first housing element and a second housing element cooperating with each other along a drive axis direction of the drive train unit module to form a pocket adapted to receive the drive train unit module, characterized in that:
the drive train unit module further comprises a connecting piece located between the motor and the transmission, the connecting piece is suitable for connecting the motor and the transmission into a whole, one end of the connecting piece is connected with one end of the transmission, the other end of the connecting piece extends along the direction of the driving axis to cover the motor and extends to be fixedly connected with the second shell element, and the other end of the transmission is fixedly connected with the first shell element.
2. A power tool according to claim 1, wherein: the power tool also includes an end cap coupled to the second housing member, the end cap adapted to conceal the coupling structure of the coupling member to the second housing member.
3. A power tool according to claim 2, wherein: the end cover is also provided with at least one ventilation opening, and the ventilation opening is suitable for communicating the inner area of the electric tool shell with the outside.
4. A power tool according to claim 1, wherein: the connecting piece is connected with the second shell element in a snap fit or screw mode.
5. An electric tool according to claim 1 or 4, characterized in that: the transmission is screwed to the first housing element.
6. A power tool according to claim 1, wherein: the connecting piece is detachably connected with the transmission.
7. An electric tool according to claim 6, wherein: the connecting piece is in key connection or pin connection or snap connection with the transmission.
8. A power tool according to claim 2 or 3, wherein: the end cap is fixedly attached to the second housing member by a locking structure.
9. A power tool comprising a power tool housing and a drive train unit module disposed within the power tool housing, the drive train unit module including at least a motor and a transmission, the power tool housing including a first housing element and a second housing element cooperating with each other along a drive axis direction of the drive train unit module to form a pocket adapted to receive the drive train unit module, characterized in that:
the drive train unit module further comprises a connecting piece located between the motor and the transmission, the connecting piece is suitable for connecting the motor and the transmission into a whole, the connecting piece is further provided with a locking structure suitable for connecting the drive train unit module and the second shell element together, an end cover is arranged at the other end of the second shell element, and the end cover is suitable for hiding the connecting structure of the connecting piece and the second shell element.
10. A power tool according to claim 9, wherein: the end cover is also provided with at least one ventilation opening, and the ventilation opening is suitable for communicating the inner area of the electric tool shell with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989800.0A CN113858136A (en) | 2020-05-12 | 2020-05-12 | Electric tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110989800.0A CN113858136A (en) | 2020-05-12 | 2020-05-12 | Electric tool |
| CN202010398908.8A CN111546295A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398908.8A Division CN111546295A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113858136A true CN113858136A (en) | 2021-12-31 |
Family
ID=72000886
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011472038.0A Pending CN112720371A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
| CN202110989800.0A Pending CN113858136A (en) | 2020-05-12 | 2020-05-12 | Electric tool |
| CN202010398908.8A Withdrawn CN111546295A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011472038.0A Pending CN112720371A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
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| CN202010398908.8A Withdrawn CN111546295A (en) | 2020-05-12 | 2020-05-12 | Electric tool shell and electric tool |
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| WO (1) | WO2021227649A1 (en) |
Families Citing this family (3)
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|---|---|---|---|---|
| CN112720371A (en) * | 2020-05-12 | 2021-04-30 | 浙江动一新能源动力科技股份有限公司 | Electric tool shell and electric tool |
| CN112318441A (en) * | 2020-11-07 | 2021-02-05 | 彭亮 | Modular-design handheld multipurpose electric tool device |
| GB2612867A (en) * | 2021-11-12 | 2023-05-17 | Dextron Tech Ltd | Energy storage module |
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- 2020-05-12 CN CN202011472038.0A patent/CN112720371A/en active Pending
- 2020-05-12 CN CN202110989800.0A patent/CN113858136A/en active Pending
- 2020-05-12 CN CN202010398908.8A patent/CN111546295A/en not_active Withdrawn
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- 2021-03-18 WO PCT/CN2021/081430 patent/WO2021227649A1/en active Application Filing
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| CN103722520A (en) * | 2014-01-10 | 2014-04-16 | 张奉江 | Ball type torsion clutch type electric tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112720371A (en) | 2021-04-30 |
| WO2021227649A1 (en) | 2021-11-18 |
| CN111546295A (en) | 2020-08-18 |
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Address after: 315000 No. 255, Kesheng Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province Applicant after: ZHEJIANG LERA NEW ENERGY POWER TECHNOLOGY Co.,Ltd. Address before: 315503 No.398 Longtan Road, Fenghua District, Ningbo City, Zhejiang Province Applicant before: ZHEJIANG LERA NEW ENERGY POWER TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |