CN102452066A - Handheld type electric tool - Google Patents
Handheld type electric tool Download PDFInfo
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- CN102452066A CN102452066A CN2011100939641A CN201110093964A CN102452066A CN 102452066 A CN102452066 A CN 102452066A CN 2011100939641 A CN2011100939641 A CN 2011100939641A CN 201110093964 A CN201110093964 A CN 201110093964A CN 102452066 A CN102452066 A CN 102452066A
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Abstract
The invention relates to a handheld type electric tool. The handheld type electric tool comprises a shell, a motor, an output shaft, a switch module and a battery module, wherein the motor is accommodated in the shell; the output shaft is driven by the motor, and is connected with a working head; the switch module is arranged on the shell, and is used for controlling the motor; the battery module can be matched and connected with the shell, and comprises a casing and a plurality of battery units, and the battery units are accommodated in the casing; the shell comprises a shell body and a holding part, and the holding part is connected with the shell body; and the casing comprises an upper casing and a bottom casing, and at least part of the upper casing is accommodated in the holding part. According to the handheld type electric tool, the optimal balance among power, weight and volume can be achieved; requirements for power of the handheld type electric tool can be met in most of daily works; and good user experience can be obtained due to smaller volume and lighter weight.
Description
Technical field
The present invention relates to a kind of hand held electric tool.
Background technology
Hand held electric tool such as electric drill, oscillating machine, electric circular saw etc., uses battery component as power supply usually, thereby makes hand held electric tool more flexibly with portable.
In order to tackle the different working situation in the daily use, the power output of different hand held electric tools is different, and when carrying out different operation, the power of output is also inequality with a kind of hand held electric tool.For example: the user usually uses electric circular saw to carry out cutting panels of wood work; When cutting thickness is the medium-density plate of 18mm; Need about 100 watts power output, and cutting thickness then needs about 300 watts power output when being the deal board of 25mm; So the peak power output of electric circular saw often need reach 300 watts.The user usually uses oscillating machine to carry out the cutting work or the sanding work of plank, when using oscillating machine that sanding is carried out on the deal board surface, needs about 80 watts power output; When using the oscillating machine cutting thickness as the medium-density plate of 18mm; Need 260 watts power output, when using the oscillating machine cutting thickness as the deal board of 12mm, the power output of 200 watts of needs then; So the peak power output of oscillating machine often need be reached for 260 watts.The user usually uses electric drill to be engaged in the work that on plank or cement plate, screws or hole; When using when diameter being installed on the thick deal board of 50mm, making a call to a hole as the electric drill of the chit drill drill bit of 35mm; Need about 280 watts power output; When using electric drill on the thick deal board of 50mm, to make a call to a model as the self-tapping screw nail of ST10*50; Need about 280 watts power output, when using when diameter being installed on the cement plate of thickness, making a call to a hole power output that needs are about 210 watts as 50mm as the electric drill of the drill bit of 8mm; When using electric drill on the hole of cement plate diameter, to beat model, then need about 300 watts power output as the self-tapping screw of ST10*50 nail as 8mm; So the maximum work output of electric drill often need reach 300 watts.Generally speaking, hand held electric tool often needs about 300 watts power output can be provided, and could satisfy the demand under most of working condition.
The user need grip and ambulatory handheld formula electric tool to finish the work, therefore, it is low weight that hand held electric tool often is made into weight by hope, volume ratio is less and have a grip portions of being convenient to grip, thereby obtains good experience.From the angle of ergonomics, when people use battery component as the performance of the hand held electric tool of power supply in assessment, the power that often uses hand held electric tool to the ratio of weight as standard.The power of hand held electric tool is the peak power output of hand held electric tool to the ratio of weight, and (weight that the weight of hand held electric tool equals hand held electric tool itself adds the weight of battery component divided by the weight of hand held electric tool; The peak power output of hand held electric tool can be thought the peak power output of the motor of hand held electric tool; Many factors possibly have influence on the peak power output of hand held electric tool; Topmost factor is the voltage of battery component and the electric current that flows through motor, but since the impedance of battery component, the impedance of motor; The existence of undesirable elements such as the impedance of other electronic units of electric tool and transmission loss tends to make hand held electric tool to have some power losses).The power of hand held electric tool is big more to the ratio of weight, has represented user's experience of hand held electric tool good more.
Fig. 1-3 is the sketch map of 12 volts battery component for a kind of traditional 12 volts of hand held electric tools and the nominal voltage that is used for this hand held electric tool.Hand held electric tool 101 has casing 102, motor 103, reducing gear 110, output shaft 104, switch module 106, and battery component 105.Casing 102 comprises body shell 102A and grip part 102B; Motor 103 is arranged in the body shell 102A; The rotating shaft of motor 103 is matched with output shaft 104 through being arranged at body shell 102A inner reducing gear 110, and when switch module 106 was connected, motor 103 began rotation.
Contain 3 battery units that are connected in series 108 in the shell 107 of battery component 105; Each battery unit 108 can have the nominal voltage of about 4V; Battery component 105 can have the nominal voltage of about 12V, and the average output current of about 20A can be provided; Each battery unit 108 roughly is cylindric, has the end face that is oppositely arranged of two circles, and the side that connects two end faces.3 batteries unit 108 vertically are provided with, and are triangularly arranged, and wherein two batteries unit are arranged side by side and form leg-of-mutton base, and the front portion that an other batteries unit is positioned at aforementioned two batteries unit forms vertex of a triangle.The inside of battery component 105 insertion grip part 102B.
Hand held electric tool 101 can provide the power output about 200 watts, and its weight is about 1.1 kilograms.12 volts of hand-held drill guns such as the BOSCH manufacturing; Its peak power output is 210 watts, can't accomplish such as being that to beat model on the hole of 8mm be the work the self-tapping screw of S T10*50 is followed closely in hole that to make a call to a diameter on the thick deal board of 50mm be 35mm or at the cement plate diameter; When using this instrument to carry out on the cement plate of thickness as 50mm, to beat diameter as the work in the hole of 8mm, the hole that only can accomplish about 10 promptly needs charging once more.Therefore, the user usually reflects that this type of electric tool of 12 volts can't be competent at the part routine work, and monocell to embrace continuous ability to work relatively poor, experience is relatively poor.Certainly, also have the hand held electric tool of nominal voltage less than 12V on the market, for example 3.6 volts hand held electric tool, 7.2 volts hand held electric tool all have aforesaid shortcoming.
Fig. 4-6 is the sketch map of 18 volts battery component for a kind of traditional 18 volts of hand held electric tools and the nominal voltage that is used for this hand held electric tool.Fig. 4-6 is corresponding diagram 1-3 respectively, use among Fig. 4-6 identical numbering represent with Fig. 1-3 in identical parts.
Hand held electric tool 201 can provide the power output greater than 300 watts; Can accomplish in preceding described major part working condition used in everyday; And with respect to hand held electric tool 101, the operating efficiency of hand held electric tool 201 is higher, and single bag ability is also stronger.But owing to increased by two batteries unit 108; Brought the increase of battery component weight thus; And hand held electric tool 201 is in order to satisfy bigger power output; Need all adjust accordingly its casing, motor, reducing gear and switch module, so brought bigger volume and weight, the weight of 18 volts the hand held electric tool 201 often hand held electric tool than 12 volts 101 is bigger.Model such as the BOSCH manufactured is 18 volts of hand-held drill guns of GSB 18-2-LI, and its peak power output is 300 watts, and weight is 1.7 kilograms.Therefore, the user usually reflects that its overall volume and weight are all bigger, be not easy in compact space, use, and one-handed performance its when carrying out punch operation sensation weight heavier, fatiguability is unfavorable for carrying out for a long time work.Certainly, also have the hand held electric tool of nominal voltage greater than 18V on the market, for example 20 volts hand held electric tool, 25 volts hand held electric tool, hand held electric tool of 36 volts or the like all have aforesaid shortcoming.
Summary of the invention
For solving the problems of the technologies described above, the present invention provides the battery component of the balance that reaches optimum between a kind of power that can make hand held electric tool and weight, the volume and uses the hand held electric tool of this battery component.
For realizing above-mentioned purpose, technical scheme provided by the invention is: a kind of hand held electric tool comprises: casing; Motor is contained in the said casing; Output shaft is connected by said motor-driven and with working head; Switch module is installed on the casing, is used to control said motor; Battery component can be matched with said casing, comprises shell and the multiple batteries unit that is contained in the shell; Said casing comprises body shell and the grip part that is connected with said body shell; Said shell comprises shell upper and outer casing bottom, and said shell upper is being contained in the said grip part of part at least.
Preferably, said shell upper contains the battery unit that laterally arranges with said grip part.
Preferably; The Control Component that said switch module comprises displacement button, pressure sensor, is set in place the flexible member between shift button and the pressure sensor and is connected with said motor; Wherein said displacement button is arranged on the said grip part; Said pressure sensor provides output voltage according to the position of said displacement button, and said Control Component is controlled said rotating speed of motor changeably according to make response according to said output voltage.
Preferably, at least one in said pressure sensor and the said multiple batteries unit with the perpendicular plane of said output shaft on projection section overlap.
Preferably; Said multiple batteries unit comprises four batteries unit; Wherein first battery unit and second battery unit are provided with along the lengthwise bearing of trend serial of said grip part; The 3rd battery unit and said first battery unit with the perpendicular plane of said output shaft on projection overlap, the 4th battery unit and said second battery unit with the perpendicular plane of said output shaft on projection overlap.
Preferably, said displacement button, pressure sensor and flexible member are arranged in the said grip part, and said Control Component is arranged in the said body shell.
Preferably, said switch module and the said lengthwise bearing of trend battery unit parallel with the lengthwise bearing of trend of said grip part with the perpendicular plane of the lengthwise bearing of trend of said grip part on projection section overlap.
Preferably, said outer casing bottom contains the perpendicular battery unit of lengthwise bearing of trend of lengthwise bearing of trend and said grip part.
Preferably; Said multiple batteries unit comprises first battery unit, second battery unit, the 3rd battery unit and the 4th battery unit; Each battery unit integral body in said a plurality of battery unit is cylindrical; Have two end faces that are oppositely arranged and the side that is connected two end faces; First battery unit and second battery unit are arranged side by side along the lengthwise bearing of trend of said grip part, and the 3rd battery unit and the 4th battery unit edge are arranged side by side with the perpendicular direction of the lengthwise bearing of trend of said grip part, and the side of first battery unit and second battery unit is resisted against on the same side end face of the 3rd battery unit and the 4th battery unit.
Preferably, said a plurality of battery units have lithium base chemical substance, and the nominal voltage of said battery component is 16 volts.
Compared with prior art; Hand held electric tool among the present invention; Make between power and weight, the volume of hand held electric tool to reach optimum balance, not only can satisfy under most of routine work situation demand, and volume is less for hand held electric tool power; Weight is lighter, thereby can obtain good experience.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is a kind of traditional hand held electric tool and the floor map of internal structure thereof;
Fig. 2 is the side schematic view of the battery component of the hand held electric tool among Fig. 1;
Fig. 3 is that battery component among Fig. 2 is along the cutaway view of A-A line;
Fig. 4 is the another kind of traditional hand held electric tool and the floor map of internal structure thereof;
Fig. 5 is the side schematic view of the battery component of the hand held electric tool among Fig. 4;
Fig. 6 is that battery component among Fig. 5 is along the cutaway view of B-B line;
Fig. 7 is the hand held electric tool that provides of first embodiment of the invention and the floor map of internal structure thereof;
Fig. 8 is the side schematic view of the battery component of the hand held electric tool among Fig. 7;
Fig. 9 is that battery component among Fig. 8 is along the cutaway view of C-C line;
Figure 10 is second kind of battery unit organigram of the battery component among Fig. 7;
Figure 11 is that the T of the battery unit structure among Figure 10 is to view;
Figure 12 is the third battery unit organigram of the battery component among Fig. 7;
Figure 13 is that the T of the battery unit structure among Figure 12 is to view;
Figure 14 is the 4th a kind of battery unit organigram of the battery component among Fig. 7;
Figure 15 is that the T of the battery unit structure among Figure 14 is to view;
Figure 16 is the 5th a kind of battery unit organigram of the battery component among Fig. 7;
Figure 17 is that the T of the battery unit structure among Figure 16 is to view;
Figure 18 is the hand held electric tool that provides of second embodiment of the invention and the floor map of internal structure thereof;
Figure 19 is the side schematic view of the battery component of the hand held electric tool among Figure 18;
Figure 20 is that battery component among Figure 19 is along the cutaway view of D-D line;
Figure 21 is the battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 22 is second kind of battery unit organigram of the battery component among Figure 18;
Figure 23 is that the R of the battery unit structure among Figure 22 is to view;
Figure 24 is second kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 25 is the third battery unit organigram of the battery component among Figure 18;
Figure 26 is that the R of the battery unit structure among Figure 25 is to view;
Figure 27 is the 4th a kind of battery unit organigram of the battery component among Figure 18;
Figure 28 is that the R of the battery unit structure among Figure 27 is to view;
Figure 29 is the 4th a kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 30 is the 5th a kind of battery unit organigram of the battery component among Figure 18;
Figure 31 is that the R of the battery unit structure among Figure 30 is to view;
Figure 32 is the 5th a kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 33 is the 6th a kind of battery unit organigram of the battery component among Figure 18;
Figure 34 is that the R of the battery unit structure among Figure 33 is to view;
Figure 35 is the 6th a kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 36 is the 7th a kind of battery unit organigram of the battery component among Figure 18;
Figure 37 is that the T of the battery unit structure among Figure 36 is to view;
Figure 38 is the 8th a kind of battery unit organigram of the battery component among Figure 18;
Figure 39 is that the R of the battery unit structure among Figure 38 is to view;
Figure 40 is the 8th a kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 41 is the 9th a kind of battery unit organigram of the battery component among Figure 18;
Figure 42 is that the T of the battery unit structure among Figure 41 is to view;
Figure 43 is the 9th a kind of battery unit organigram of the battery component among Figure 18, and the battery unit that vertically be provided with this moment is positioned at the centre position of horizontally disposed battery unit;
Figure 44 is that the T of the battery unit structure among Figure 43 is to view.
Wherein
1. hand held electric tool 22A. body shell 66. rear walls
2. casing 22B. grip part 67. Control Components
2A. body shell 25. battery components 101. hand held electric tools
2B. grip part 27. shells, 102. casings
3. motor 27a. shell upper 102A. body shell
4. output shaft 27b. outer casing bottom 102B. grip part
5. battery component 28. spatial accommodations 103. motors
6. switch module 29. locking devices 104. output shafts
7. shell 50a, 50b, 50c, 50d. electricity 105. battery components
7a. shell upper pool unit 106. switch modules
7b. outer casing bottom 50a ' 50b ' 50c ' 50d '. in 107. shells
8. spatial accommodation heart line 108. battery units
9. locking device 61. buttons 110. reducing gears
10. reducing gear 62. elastic components 205. battery components
11. switch module 63. pressure sensors 207. shells
21. hand held electric tool 64. circuit boards
22. casing 65. guidance cavities
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is carried out detailed explanation.
In specification full text, the left side of the hand held electric tool of definition shown in Fig. 7 and Figure 18 is " preceding ", and the right side is " back ".In specification full text, suppose that battery component is placed on the platform (not shown) of along continuous straight runs extension.
See also Fig. 7, hand held electric tool 1 has casing 2, motor 3, reducing gear 10, output shaft 4, switch module 6 and battery component 5.Casing 2 comprises body shell 2A and grip part 2B; Said body shell 2A extends along longitudinally; Said grip part 2B from the rear portion of body shell 2A at an angle to extending below; The spatial accommodation 8 of battery component 5 is held in 2B formation in grip part, and direction I inserts spatial accommodation 8 shown in the battery component 5 edge figure, through the locking device (not shown) on the battery component 5 battery component 5 is locked or release with said grip part 2B.In this embodiment, body shell 2A extends along longitudinally, and at an angle to extending below, grip part 2B forms and holds the spatial accommodation 8 of battery component 5 grip part 2B, thereby makes casing 2 integral body be the angle setting from the rear portion of body shell 2A; Certainly, grip part 2B also can extend back along its longitudinally from the rear portion of body shell 2A, and grip part 2B forms and holds the spatial accommodation 8 of battery component 5, thereby casing 2 integral body are extended along longitudinally.
Motor 3 is arranged among the body shell 2A; The rotating shaft of motor 3 is matched with output shaft 4 through being arranged at body shell 2A inner reducing gear 10; Switch module 6 is used to control the rotating speed of battery component 5 to motor 3 conveying capacities and adjusting motor 3; When switch module 6 was connected, motor 3 began rotation.
Switch module 6 is arranged on the 2B of grip part, comprises button 61, elastic component 62, pressure sensor 63, guidance cavity 65 and circuit board 64.Pressure sensor 63 is cuboid, has less size, and its thickness can be 2 millimeters even littler.Elastic component 62 and pressure sensor 63 are contained in the guidance cavity 65, and guidance cavity 65 has rear wall 66, and pressure sensor 63 is fixed on the rear wall 66, and an end of elastic component 62 is resisted against on the button 61, and an other end is resisted against on the pressure sensor 63; Circuit board 64 is fixed in the inside of body shell 2A, and electrically connects through lead between pressure sensor 63 and the motor 3, makes that the external diameter of grip part 2B is less, and circuit board 64 is provided with Control Component 67.The operator in use; Push button 61, guidance cavity 65 call-on buttons 61 move, and pressure sensor 63 changes according to the position of button 61 exports the correspondent voltage signal; Said voltage signal is delivered on the circuit board 64; Control Component 67 on the circuit board 64 is made response according to the voltage signal of pressure sensor 63, thereby can come the rotating speed of variable control motor 3 according to the change of the position of button 61.Said pressure sensor 63 can be a piezoelectric transducer; In this embodiment; Elastic component 62 is a helical spring; What those skilled in the art can expect is; Elastic component 62 also can be the parts that formed by elastic metallic yarn or flexure strip bending, and an end of said wire or flexure strip is resisted against on the button 61, and an other end is resisted against on the pressure sensor 63.
Please in the lump referring to Fig. 8 and Fig. 9, battery component 5 is positioned over (not shown) on the platform that along continuous straight runs extends, and comprises shell 7 and the battery unit 50a, 50b, 50c, the 50d that are connected in series by 4 joints that shell 7 supports.Battery case 7 comprises outer casing bottom 7b; And the shell upper 7a that extends upward formation from outer casing bottom 7b; Outer casing bottom 7b is the shape with similar ship shape of flat bottom and upper shed; Shell upper 7a has the end cap of the upper shed that can hide outer casing bottom 7b, and the sidewall that connects said end cap and said outer casing bottom 7b, and shell upper 7a can be inserted in the hand held electric tool 1.Outer casing bottom 7b is provided with locking device 9.When battery component 5 was connected to hand held electric tool 1, the spatial accommodation 8 among the grip part 2B that is inserted into hand held electric tool 1 of shell upper 7a part was fixed in battery component 5 on the 2B of grip part through the locking device 9 that is arranged on the outer casing bottom 7b.
In some structures, battery unit 50a, 50b, 50c, 50d can have the nominal voltage of about 3.6V, and battery component 5 can have the nominal voltage of about 14.4V; In other structure, battery unit 50a, 50b, 50c, 50d can have the nominal voltage of about 4V, and battery component 5 can have the nominal voltage of about 16V; And in other structure, battery unit 50a, 50b, 50c, 50d can have the nominal voltage of about 4.2V, and battery component 5 can have the nominal voltage of about 16.8V. Aforesaid battery unit 50a, 50b, 50c, 50d can be in about 3.3 to the 4.6 volts nominal voltage scope of scope; According to electrochemistry in industry voltage potential guide; This voltage range is positioned at acceptable scope; Certainly, according to the charged state (whether battery is full of) of battery unit and the particular chemical characteristic of battery, these values can change.
From the angle of ergonomics, when people use battery component as the performance of the hand held electric tool of power supply in assessment, the power that often uses hand held electric tool to the ratio of weight as standard.The power of hand held electric tool is the peak power output of hand held electric tool divided by the weight of hand held electric tool (weight that the weight of hand held electric tool equals hand held electric tool itself adds the weight of battery component) to the ratio of weight.
300 watts power output can satisfy the demand under most of working condition in the routine work, so can satisfy in 300 watts the hand held electric tool of power output, instrument is lightweight, has the ratio of preferable power to weight.Following table one shows the peak power output of hand held electric tool 1 in the embodiment of the present invention and traditional 12 volts of hand held electric tools (model of producing such as POSITEC is the electric drill of CDT36), traditional 18 volts hand held electric tools (model such as BOSCH production is the electric drill of GSB18-2-LI) and the data of instrument weight.
Table one
The characteristic that in carrying out the hand held electric tool design, needs to consider several parameters or technical elements; For example the parts in motor, casing, the reducing gear etc. are configured to bear the maximum current of the battery component output that hand held electric tool uses usually; And light as far as possible material and the subsystem component of use; Thereby obtain the advantage (promptly lighter hand held electric tool weight) of ergonomics; Under the situation of the maximum current that the parts in the motor in changing hand held electric tool, casing, the reducing gear etc. need bear, often need change the parts in motor, casing, the reducing gear etc., thus the variation that brings hand held electric tool weight.
For 12 volts of traditional hand held electric tools; Owing to need about 300 watts power to export through regular meeting in the daily work; So in daily work, usually can cause tool work under big current conditions; For example under the situation of stall, the output current of 12 volts of traditional hand held electric tools can surpass 25 amperes at short notice, so the parts in its motor, casing, the reducing gear etc. also need satisfy the condition of the maximum output current that can bear battery component accordingly.And 16 volts of hand held electric tools provided by the present invention; When the power of about 300 watts of outputs; Its battery component output current is about 20 amperes, so its material is similar with 12 volts of traditional hand held electric tools with subsystem component, the difference on its weight mainly is the weight of the battery unit that battery component has more; And because the difference that the manufacturer of different electric pool unit and/or battery component exists, for example difference of the thickness of the shell of battery component, material, radiator structure or the like.So 12 volts of hand held electric tools that the weight of 16 volts of hand held electric tools that embodiment of the present invention provides is more traditional have increased by 0.2 kilogram.
For traditional 12 volts of hand held electric tools that are equipped with; 16 volts of hand held electric tools that embodiment of the present invention provides also have stronger list job contract and make ability; (these data are not considered the chemical characteristic of battery component to the data of following table two shows that traditional 12 volts of hand held electric tools and embodiment of the present invention provide 16 volts of hand held electric tools running times under same power output, because following data are used to analyze and 12 photovoltaic cell components and two kinds of battery components of 16 photovoltaic cell components and relatively independent battery component characteristic running time of chemical characteristic.For relatively, use the identical internal resistance and the battery pack of capacity characteristic to analyze):
Table two
For identical power output; For example during 300 watts of power outputs; The electric current that 16 volts of hand held electric tools extract is about 20 amperes, and the electric current that 12 volts hand held electric tools need extract is about 25 amperes, and 12 volts of hand held electric tools often can not normally carry out work at this moment; When hand held electric tool is operated in 200 watts power output; The electric current of 16 volts of hand held electric tool extractions is about 13.5 amperes; And the electric current that 12 volts of hand held electric tools need extract is about 17 amperes; 16 volts of hand held electric tools extract electric current still less, therefore the I of 16 volts of hand held electric tools
2Less than the heat loss that has 12 volts of hand held electric tools, therefore, 16 volts of hand held electric tools can have longer list job contract with respect to 12 volts of hand held electric tools and do the time R heat loss (heat loss can square multiply by impedance and represent by electric current).
For 18 volts of traditional hand held electric tools; Though the hand held electric tool routine work often only needs about 300 watts power output; But in order to guarantee that hand held electric tool has the ability that can bear highest, so the parts in its corresponding motor, casing, reducing gear etc. also need have the ability that can bear highest.So compare with 16 volts of hand held electric tools that traditional 12 volts of hand held electric tools and embodiment of the present invention provide; Difference on its weight mainly is following two aspects: first; The weight of battery component; The weight of the battery unit that has more, and because the difference that the manufacturer of different electric pool unit and/or battery component exists, for example battery case/or the difference of the thickness of the shell of battery component, material, heat radiation or the like.Second; Hand held electric tool has used the material that can adapt to high power levels more and subsystem component and the weight brought increases; So 16 volts of hand held electric tools that embodiment of the present invention provides are compared with 18 volts of traditional hand held electric tools, weight saving 0.3 kilogram.Equally, the increase that has brought the hand held electric tool overall volume owing to above-mentioned two reasons.
What can expect is; The weight of 16 volts of electric drills that this embodiment provides not is to be unique; But the power of 16 volts of electric drills that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of electric drills or traditional 18 volts of electric drills to weight.
In another embodiment, 16 volts of hand held electric tools provided by the invention are oscillating machine.Following table three shows the peak power output of 16 volts of oscillating machines provided by the invention and traditional 12 volts of oscillating machines (model such as the production of spring peak is 12 volts of oscillating machines of Nextec 12V-Li), traditional 18 oscillating machines and the data of instrument weight.
Table three
What can expect is; The weight of 16 volts of oscillating machines that this embodiment provides not is to be unique; But the power of 16 volts of oscillating machines that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of oscillating machines or traditional 18 volts of oscillating machines to weight.
In another embodiment, 16 volts of hand held electric tools provided by the invention are annular saw.Following table four shows the peak power output of 16 volts of annular saws provided by the invention and traditional 12 volts of annular saws (model of producing such as Ryobi is 12 volts of annular saws of CS120L), traditional 18 volts of annular saws and the data of instrument weight.
Table four
What can expect is; The weight of 16 volts of annular saws that this embodiment provides not is to be unique; But the power of 16 volts of annular saws that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of annular saws or traditional 18 volts of annular saws to weight.
In another embodiment, 16 volts of hand held electric tools provided by the invention are electric hammer.Following table five shows the peak power output of 16 volts of electric hammers provided by the invention and traditional 12 volts of electric hammers (model of producing such as Makita is 12 volts electric hammers of HR1600DWA), traditional 18 electric hammers (model of AEG production is 18 volts of electric hammers of PN18XZ1) and the data of instrument weight.
Table five
What can expect is; The weight of 16 volts of electric hammers that this embodiment provides not is to be unique; But the power of 16 volts of electric hammers that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of electric hammers or traditional 18 volts of electric hammers to weight.
In another embodiment, 16 volts of hand held electric tools provided by the invention are sweep-saw.Following table five shows the peak power output of 16 volts of sweep-saws provided by the invention and traditional 12 volts of sweep-saws, traditional 18 sweep-saws (model of producing such as Makita is 18 volts of sweep-saws of BJV180) and the data of instrument weight.
Table five
What can expect is; The weight of 16 volts of sweep-saws that this embodiment provides not is to be unique; But the power of 16 volts of sweep-saws that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of sweep-saws or traditional 18 volts of sweep-saws to weight.
This shows; 16 volts of hand held electric tools that provide in the embodiment of the present invention are with respect to 12 volts of traditional hand held electric tools; Weight is comparatively approaching, but higher power output can be provided, and ability is made in better monocell job contract; And have higher power energy ratio, can obtaining preferably, the user experiences.16 volts of hand held electric tools that provide in the embodiment of the present invention are with respect to 18 volts of traditional hand held electric tools; Ability to work is similar in daily work; And the weight of 16 volts of hand held electric tools is much smaller than the weight of 18 volts of traditional hand held electric tools; The indefatigability when user uses, can obtaining preferably, the user experiences.
What can expect is; The weight of 16 volts of hand held electric tools that this embodiment provides not is to be unique; But the power of 16 volts of hand held electric tools that this embodiment provides is to the ratio of weight, always is not less than the ratio of the power of traditional 12 volts of hand held electric tools or traditional 18 volts of hand held electric tools to weight.All power-weight ratios that obtain based on the present invention are not less than the hand held electric tool of power-weight ratio of traditional 12 volts of hand held electric tools or traditional 18 volts of hand held electric tools all within protection scope of the present invention.
Battery unit 50a, 50b, 50c, 50d are contained among the space of shell upper 7a and outer casing bottom 7b formation, battery unit 50c and 50d vertical side by side setting each other, and its center line 50c ' and 50d ' are perpendicular to horizontally extending platform.Battery unit 50a and 50b are stacked in respectively on battery unit 50c and the 50d; The center line 50a ' of battery unit 50a and the center line 50c ' of battery unit 50c coincide, and the center line 50b ' of battery unit 50b and the center line 50d ' of battery unit 50d coincide.Said shell upper 7a is near the terminal that also contains electronic component in the space of said end cap and be used for electrically connecting with said motor 3, so said shell 7 lengthwise development lengths should be greater than the twice of battery unit 50a, 50b, 50c, 50d lengthwise development length.In one embodiment, said electronic component and the terminal that is used for electrically connecting with said motor 3 take up room less, and said shell 7 lengthwise development lengths are about battery unit 50a, 50b, 50c, 50d lengthwise development length 2.2 times; In another embodiment, said electronic component and the terminal that is used for electrically connecting with said motor 3 take up room bigger, and said shell 7 lengthwise development lengths are about battery unit 50a, 50b, 50c, 50d lengthwise development length 2.5 times.
Be inserted into the grip part 2B of hand held electric tool 1 when battery component 5 after; The top 7a of the shell 7 of battery component 5 and the rear wall 66 of guidance cavity 65 are abutted together, the button 61 of battery component and switch module 6 with the perpendicular plane of output shaft 4 on the overlapping of projection section.
Thereby because switch module 6 has adopted pressure sensor 63 to come sensing and output voltage signal and through circuit board 64 speed of motor 3 has been regulated; Compare with the speed controlling that traditional switch module uses mechanical switch and potentiometer to carry out motor 3; The overall dimensions of switch module 6 is less, has reduced the outside dimension of grip part 2B; And, further reduced the outside dimension of grip part 2B, thereby make gripping of user more comfortable through circuit board 64 being arranged at the inside of body shell 2B.
The structure of different battery unit 50a, 50b, 50c, 50d can make battery component 5 when being mounted to hand held electric tool 1 in the battery component 5, makes hand held electric tool 1 have compact more profile attractive in appearance, and grips more comfortable.
See also Figure 10 and Figure 11, battery component 5 is placed on (not shown) on the platform that along continuous straight runs extends.The setting that battery unit 50a is vertical, the platform that its center line 50a ' extends perpendicular to along continuous straight runs; Remaining three batteries unit 50b, 50c, adjacent one another are the piling up of 50d be arranged at battery unit 50a above, the center line 50b ' of battery unit 50b, 50c, 50d, 50c ', 50d ' parallel with the center line 50a ' of battery unit 50a.Batteries unit 50b among battery unit 50b, 50c and the 50d in front, thereby the back that two remaining batteries unit 50c and 50d are positioned at battery unit 50b has leg-of-mutton cross section.The center line 50b ', 50c ' and the 50d ' that suppose battery unit 50b, 50c and 50d are respectively through leg-of-mutton three summits, and then the center line 50a ' of battery unit 50a is through leg-of-mutton center; Battery unit 50a also can be set to its central shaft 50a ' through above-mentioned leg-of-mutton any summit or through above-mentioned leg-of-mutton any limit; Thereby make when battery component 5 is can be with different types of hand held electric tool 1 matched; All have compact more profile attractive in appearance, and grip more comfortable.The battery component 5 that is provided with like above-mentioned mode; Its electronic component and the terminal that is used for electrically connecting with said motor 3 can be around the settings of battery unit 50a; Thereby the length that shell 7 is extended along longitudinally can be shorter, is about the twice of battery unit 50a, 50b, 50c, 50d lengthwise development length.
See also Figure 12 and Figure 13, battery component 5 is placed on (not shown) on the platform that along continuous straight runs extends.Battery unit 50a, 50b, 50c vertical setting adjacent one another are, the platform that its center line 50a ', 50b ', 50c ' extend perpendicular to along continuous straight runs.Batteries unit 50a among 50a, 50b, the 50c in front, thereby two remaining batteries unit 50b, the back that 50c is positioned at battery unit 50a have leg-of-mutton cross section.Battery unit 50d pile up be arranged at three batteries unit 50a, 50b, 50c above, the platform that its center line 50d ' extends perpendicular to along continuous straight runs.The center line 50a ', 50b ', the 50c ' that suppose battery unit 50a, 50b, 50c pass through leg-of-mutton three summits respectively, and then the central shaft 50d ' of battery unit 50d is through above-mentioned leg-of-mutton center; Battery unit 50d also can be set to its central shaft 50d ' through above-mentioned leg-of-mutton any summit, and promptly any among the center line 50a ' of the center line 50d ' of battery unit 50d and battery unit 50a, 50b, 50c, 50b ', the 50c ' coincides; Certainly, the center line 50d ' of battery unit 50d also can pass through above-mentioned leg-of-mutton any limit; Thereby make when battery component 5 is can be with different types of hand held electric tool 1 matched, all have compact more profile attractive in appearance, and grip more comfortable.The battery component 5 that is provided with like above-mentioned mode; Its electronic component and the terminal that is used for electrically connecting with said motor 3 can be around the settings of battery unit 50d; Thereby the length that shell 7 is extended along longitudinally can be shorter, is about the twice of battery unit 50a, 50b, 50c, 50d lengthwise development length.Like the battery component 5 that above-mentioned mode is provided with, its upper end is less, when being mounted to hand held electric tool 1, can as much as possible inwardly install, thereby with the more compactness of battery component 5 with hand held electric tool 1 installation.
See also Figure 14 and Figure 15, battery component 5 is placed on (not shown) on the platform that along continuous straight runs extends.Battery unit 50a, adjacent one another are vertically being arranged side by side of 50b; Battery unit 50c and adjacent one another are vertically being arranged side by side of battery unit 50d; And battery unit 50c and battery unit 50d are suspended on the setting of the platform that said along continuous straight runs extends with respect to battery unit 50a, 50b, and its flying height is greater than 0 and less than the length of the lengthwise extension of battery unit 50a and battery unit 50b.The battery component 5 that is provided with like above-mentioned mode; Its electronic component and the terminal that is used for electrically connecting with said motor 3 can be positioned at the top of battery unit 50a and battery unit 50b; The setting adjacent with the sidewall of battery unit 50c, 50d, thus the length that shell 7 is extended along longitudinally is between battery unit 50a, 50b, 50c, 50d lengthwise development length 1.5 times to 2 times.
See also Figure 15 and Figure 16, battery component 5 is placed on (not shown) on the platform that along continuous straight runs extends. Battery unit 50a, 50b, 50c, 50d vertical setting adjacent one another are; Its center line 50a ', 50b ', 50c ', 50d ' connect in twos and assume diamond in shape; And battery unit 50b is suspended on the setting of the platform that said along continuous straight runs extends with respect to battery unit 50a, 50b, 50c, and its flying height is greater than 0 and the length of extending less than the lengthwise of battery unit 50a, 50c, 50d.The battery component 5 that is provided with like above-mentioned mode; Its electronic component and the terminal that is used for electrically connecting with said motor 3 can be positioned at the top of battery unit 50a, 50c, 50d; The setting adjacent with the sidewall of battery unit 50b, thus the length that shell 7 is extended along longitudinally is between battery unit 50a, 50b, 50c, 50d lengthwise development length 1.5 times to 2 times.
Seeing also Figure 18, is the hand held electric tool that provides of second embodiment of the invention and the floor map of internal structure thereof.Hand held electric tool 21 has casing 22, motor 3, reducing gear 10, output shaft 4, switch module 11 and battery component 25.Said casing 22 comprises body shell 22A and grip part 22B; Said body shell 22A extends along longitudinally; Said grip part 22B from the rear portion of body shell 22A at an angle to extending below; The spatial accommodation 28 of battery component 25 is held in 22B formation in grip part, and battery component 25 inserts said spatial accommodation 28 along direction I shown in the figure, through the locking device (not shown) on the battery component 25 battery component 25 is locked or release with said grip part 22B.In this embodiment, body shell 22A extends along longitudinally, and at an angle to extending below, grip part 22B forms and holds the spatial accommodation 28 of battery component 25 grip part 22B, thereby makes casing 22 integral body be the angle setting from the rear portion of body shell 22A; Certainly, grip part 22B also can extend back along its longitudinally from the rear portion of body shell 22A, and grip part 22B forms and holds the spatial accommodation 28 of battery component 25, thereby casing 22 integral body are extended along longitudinally.
Motor 3 is arranged among the body shell 22A; The rotating shaft of motor 3 is matched with output shaft 4 through being arranged at body shell 22A inner reducing gear 10; Switch module 11 is used to control the rotating speed of battery component 25 to motor 3 conveying capacities and adjusting motor 3; When switch module 11 was connected, motor 3 began rotation.
Switch module 11 is arranged on the 22B of grip part, and electrically connects through lead between battery component 25 and the motor 3, and the operator controls the switch of motors 3 and the rotating speed of adjusting motor 3 through push switch assembly 11 in use.
Hand held electric tool is often considered the parameter of some technical elements or characteristic aspect in design; For example the voltage of the power of instrument, its size, gross weight (the instrument weight that promptly has battery component), battery component, capacity, electric current etc. all are used to assist the suitable element of selection tool so that instrument can reach the tool performance of hope.For gross weight, the hand held electric tool of same power is compared with the rope electric tool is arranged, and under all suitable situation of motor, reducing gear and casing weight, the weight of battery component is the main cause that causes hand held electric tool weight bigger.
Please in the lump referring to Figure 19 and Figure 20, battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends, and comprises shell 27 and the battery unit 50a, 50b, 50c, the 50d that are connected in series by 4 joints that shell 27 supports.Battery case 27 comprises outer casing bottom 27b, and extends upward the shell upper 27a of formation from outer casing bottom 27b.Outer casing bottom 27b is the shape with similar ship shape of flat bottom and upper shed; Shell upper 27a has the end cap of the upper shed that can hide outer casing bottom 27b; And the sidewall that connects said end cap and said outer casing bottom 27b, shell upper 27a can be inserted in the hand held electric tool 21.Outer casing bottom 27b is provided with locking device 29.When battery component 25 is connected to hand held electric tool 21; Spatial accommodation 28 among the grip part 22B that is inserted into hand held electric tool 21 of shell upper 27a part is fixed in battery component 25 on the 22B of grip part through the locking device 29 that is arranged on the outer casing bottom 27b.
Lithium ionic cell unit can provide bigger energy with smaller volume and weight with respect to traditional NI-G (NiCd) or nickel metal mixture (NiMH) battery unit.For example battery unit 50a, 50b, 50c, 50d can have the nominal voltage of about 3.6V, so battery component 5 has the nominal voltage of about 14.4V; Battery component 5 also can be battery unit 50a, 50b, 50c, the 50d that comprises the about 4.2V of four joints that is connected in series, thereby battery component 5 has the nominal voltage of about 16.8V; Battery component 5 also can be to comprise that four joints that are connected in series are in battery unit 50a, 50b, 50c, the 50d between the 3.6V-4.2V, thereby battery component 5 has the nominal voltage that is between the 14.4V-16.8V.
Battery unit integral body is cylindrical; Has the roughly rounded end face on side and two opposite sides; And the center line 50a ' that the side of edge and battery unit 50a, 50b, 50c, 50d parallels, 50b ', 50c ', 50d ' lengthwise extend, and have the length of about 65mm and the about cross-sectional diameter of 18mm.The single-unit weight of battery unit 50a, 50b, 50c, 50d is about 41.5g, and the weight of battery component 5 is between about 175g-255g, and has variation according to the different manufacturers of battery unit 50a, 50b, 50c, 50d or battery component 5.Battery component 5 can provide the average discharge current that is not more than 20A, and can have the ampere-hour capacity between about 1.3AH to 2.0AH.
The lengthwise development length of aforesaid battery component 25 is less; Be inserted into the grip part 22B of hand held electric tool 21 when battery component 25 after; Spatial accommodation 28 among the 22B of grip part is still comparatively well-to-do, can use the bigger switch module of volume 11, makes the cost of hand held electric tool 21 lower; And the vertical height of hand held electric tool 21 is less, thereby makes user's work convenient more.
The structure of different battery unit 50a, 50b, 50c, 50d can make battery component 25 when being mounted to hand held electric tool 21 in the battery component 25, makes hand held electric tool 21 have compact more profile attractive in appearance, and grips more comfortable.
See also Figure 22 and Figure 23, battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends, battery unit 50a, adjacent one another are being lying among the outer casing bottom 27b of 50b, and the homonymy end face of battery unit 50a, 50b is in the same plane; Battery unit 50c, adjacent one another are vertically being arranged on battery unit 50a, the 50b of 50d; Along the symmetrical setting of the contacts side surfaces line of battery unit 50c, 50d; The platform that the center line 50c ' of battery unit 50c, 50d, 50d ' extend perpendicular to horizontal direction, and crossing with center line 50a ', the 50b ' of battery unit 50a, 50b respectively.The outer circumference of battery unit 50c and 50d belongs in the plane in the same side end face of above-mentioned battery unit 50a, 50b, thereby makes battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 24; The battery unit 50a of battery component 25,50b, 50c, 50d also can be as shown in Figure 24 setting; The center line 50c ' of battery unit 50c and 50d, 50d ' are positioned near the centre position of lengthwise expanded range of battery unit 50a, 50b, thereby make battery component 25 have the profile that roughly is the T type.
See also Figure 25 and Figure 26; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a, 50b is adjacent one another are is lying among the outer casing bottom 27b, and battery unit 50c, 50d is adjacent one another are vertically is arranged among the outer casing bottom 27b end face of battery unit 50a, 50b homonymy; And the outer circumference of battery unit 50c, 50d is in same plane, thereby makes battery component 25 have the profile that roughly is the T type.
See also Figure 27 and Figure 28; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a, 50b are parallel to each other and being lying among the outer casing bottom 27b at interval, and the homonymy end face of battery unit 50a, 50b is in the same plane, battery unit 50c, adjacent one another are vertically being arranged among the outer casing bottom 27b of 50d; And between battery unit 50a, 50b; The flanked of the side of battery unit 50a, 50b and battery unit 50c and 50d is touched, and the neighboring of battery unit 50d is positioned at the plane at the place, same side end face of battery unit 50a, 50b, thereby makes battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 29; Battery unit 50a, 50b, 50c and the 50d of battery component 25 also can be as shown in Figure 29 setting; The contacts side surfaces line of battery unit 50c and 50d is positioned near the centre position of lengthwise expanded range of battery unit 50a, 50b, thereby makes battery component 25 have the profile that roughly is the T type.
See also Figure 30 and Figure 31; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a is lying among the outer casing bottom 27b, and battery unit 50b piles up and is arranged on the battery unit 50a, and the center line 50a ' of battery unit 50a is parallel to the center line 50b ' of battery unit 50b; What battery unit 50c and 50d were adjacent one another are vertically is arranged on the battery unit 50b; Along the tandem arrangement of direction that the lengthwise of battery unit 50b extends, the neighboring of the same side end face of battery unit 50a and 50b and battery unit 50d is positioned at same plane, thereby makes battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 32; Battery unit 50a, 50b, 50c and the 50d of battery component 25 also can be as shown in Figure 32 setting; The contacts side surfaces line of battery unit 50c and 50d is positioned near the centre position of lengthwise expanded range of battery unit 50b, thereby makes battery component 25 have the profile that roughly is the T type.
See also Figure 33 and Figure 34; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a, 50b, adjacent one another are being lying among the outer casing bottom 27b of 50c; Battery unit 50b is between battery unit 50a and 50c; What battery unit 50d was vertical is arranged on the battery unit 50b, the outer circumference of the same side end face of battery unit 50a, 50b, 50c and battery unit 50d in same plane, thereby make battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 35; Battery unit 50a, 50b, 50c and the 50d of battery component 25 also can be as shown in Figure 35 setting; The center line 50d ' of battery unit 50d is positioned near the centre position of lengthwise expanded range of battery unit 50b, thereby makes battery component 25 have the profile that roughly is the T type.
See also Figure 36 and Figure 37; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a, 50b, adjacent one another are being lying among the outer casing bottom 27b of 50c; Battery unit 50b is between battery unit 50a and 50c; Battery unit 50b departs from along longitudinally with respect to battery unit 50a and 50c, and battery unit 50b is identical with respect to vertical departure degree of the same side end face of battery unit 50a and 50c, and roughly the end face diameter with battery unit 50a, 50b, 50c, 50d is suitable.Battery unit 50d is vertical is arranged in the space that battery unit 50b vertically departs from respect to battery unit 50a, 50c; The end face of battery unit 50b touches with the flanked of the battery unit 50d that vertically arranges; The outer circumference of the same side end face of battery unit 50a and 50c and battery unit 50d in same plane, thereby make battery component 25 have the profile that roughly is the L type.
See also Figure 38 and Figure 39; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a, 50b and 50c being lying among the outer casing bottom 27b of piling up triangular in shape adjacent one another are; Battery unit 50a and 50b are positioned at the bottom, and battery unit 50c is positioned on battery unit 50a and the 50b, and what battery unit 50d was vertical is arranged on the battery unit 50c; The outer circumference of the same side end face of battery unit 50a, 50b and 50c and battery unit 50d in same plane, thereby make battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 40; Battery unit 50a, 50b, 50c and the 50d of battery component 25 also can be as shown in Figure 40 setting; The center line 50d ' of battery unit 50d is positioned near the centre position of lengthwise expanded range of battery unit 50c, thereby makes battery component 25 have the profile that roughly is the T type.
See also Figure 41 and Figure 42; Battery component 25 is positioned over (not shown) on the platform that along continuous straight runs extends; Battery unit 50a is lying among the outer casing bottom 27b, and what remaining three batteries unit 50b, 50c, 50d was vertical is arranged on the battery unit 50a setting that battery unit 50b, 50c and 50d are adjacent one another are and triangular in shape; What wherein battery unit 50c and 50d were parallel to each other is arranged side by side in the rear; Battery unit 50b is arranged at the place ahead of battery unit 50c and 50d, and the neighboring of battery unit 50c, 50d and the rear side end face of battery unit 50a are in the same plane, thereby make battery component 25 have the profile that roughly is the L type.Please in the lump referring to Figure 43 and Figure 44; Battery unit 50a, 50b, 50c and the 50d of battery component 25 also can be shown in Figure 43 and Figure 44 setting; The center line 50b ', 50c ', the 50d ' that suppose battery unit 50b, 50c and 50d pass through leg-of-mutton three summits respectively; Above-mentioned leg-of-mutton center is positioned near the centre position of lengthwise expanded range of battery unit 50a, thereby makes battery component 25 have the profile that roughly is the T type.
Compared with prior art, hand held electric tool provided by the invention, compact conformation not only, weight is lighter, and can satisfy in the routine work demand to the power of hand held electric tool, has brought facility for user's work.
What it may occur to persons skilled in the art that is; The present invention can also have other implementation; But as long as its technical spirit that adopts is identical with the present invention or close, variation that perhaps any easy full of beard of making based on the present invention reaches and replacement are all within protection scope of the present invention.
Claims (10)
1. hand held electric tool comprises:
Casing;
Motor is contained in the said casing;
Output shaft is connected by said motor-driven and with working head;
Switch module is installed on the casing, is used to control said motor;
Battery component can be matched with said casing, comprises shell and the multiple batteries unit that is contained in the shell;
It is characterized in that: said casing comprises body shell and the grip part that is connected with said body shell; Said shell comprises shell upper and outer casing bottom, and said shell upper is being contained in the said grip part of part at least.
2. hand held electric tool according to claim 1 is characterized in that: said shell upper contains the battery unit that laterally arranges with said grip part.
3. hand held electric tool according to claim 2; It is characterized in that: the Control Component that said switch module comprises displacement button, pressure sensor, is set in place the flexible member between shift button and the pressure sensor and is connected with said motor; Wherein said displacement button is arranged on the said grip part; Said pressure sensor provides output voltage according to the position of said displacement button, and said Control Component is controlled said rotating speed of motor changeably according to make response according to said output voltage.
4. hand held electric tool according to claim 3 is characterized in that: at least one in said pressure sensor and the said multiple batteries unit with the perpendicular plane of said output shaft on projection section overlap.
5. hand held electric tool according to claim 4; It is characterized in that: said multiple batteries unit comprises first battery unit, second battery unit, the 3rd battery unit and the 4th battery unit; Wherein first battery unit and second battery unit are provided with along the lengthwise bearing of trend serial of said grip part; The 3rd battery unit and said first battery unit with the perpendicular plane of said output shaft on projection overlap, the 4th battery unit and said second battery unit with the perpendicular plane of said output shaft on projection overlap.
6. hand held electric tool according to claim 5 is characterized in that: said displacement button, pressure sensor and flexible member are arranged in the said grip part, and said Control Component is arranged in the said body shell.
7. hand held electric tool according to claim 2 is characterized in that: said switch module and the said lengthwise bearing of trend battery unit parallel with the lengthwise bearing of trend of said grip part with the perpendicular plane of the lengthwise bearing of trend of said grip part on projection section overlap.
8. hand held electric tool according to claim 7 is characterized in that: said outer casing bottom contains the perpendicular battery unit of lengthwise bearing of trend of lengthwise bearing of trend and said grip part.
9. hand held electric tool according to claim 8; It is characterized in that: said multiple batteries unit comprises first battery unit, second battery unit, the 3rd battery unit and the 4th battery unit; Each battery unit integral body in said a plurality of battery unit is cylindrical; Have two end faces that are oppositely arranged and the side that is connected two end faces; First battery unit and second battery unit are arranged side by side along the lengthwise bearing of trend of said grip part; The 3rd battery unit and the 4th battery unit edge are arranged side by side with the perpendicular direction of the lengthwise bearing of trend of said grip part, and the side of first battery unit and second battery unit is resisted against on the same side end face of the 3rd battery unit and the 4th battery unit.
10. according to the arbitrary described hand held electric tool of claim 1-9, it is characterized in that: said a plurality of battery units have lithium base chemical substance, and the nominal voltage of said battery component is 16 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100939641A CN102452066A (en) | 2010-10-25 | 2011-04-14 | Handheld type electric tool |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010520251.4 | 2010-10-25 | ||
| CN201010520251 | 2010-10-25 | ||
| CN2011100939641A CN102452066A (en) | 2010-10-25 | 2011-04-14 | Handheld type electric tool |
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| Publication Number | Publication Date |
|---|---|
| CN102452066A true CN102452066A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100939641A Pending CN102452066A (en) | 2010-10-25 | 2011-04-14 | Handheld type electric tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104521094A (en) * | 2012-07-06 | 2015-04-15 | 罗伯特·博世有限公司 | Cordless power tool with USB charging |
| CN105033958A (en) * | 2012-08-16 | 2015-11-11 | 苏州宝时得电动工具有限公司 | Power tool and operation method for exchanging same |
| CN113510276A (en) * | 2021-07-08 | 2021-10-19 | 宁波市鑫磊工具有限公司 | Speed-adjustable electric drill with brush |
-
2011
- 2011-04-14 CN CN2011100939641A patent/CN102452066A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104521094A (en) * | 2012-07-06 | 2015-04-15 | 罗伯特·博世有限公司 | Cordless power tool with USB charging |
| CN105033958A (en) * | 2012-08-16 | 2015-11-11 | 苏州宝时得电动工具有限公司 | Power tool and operation method for exchanging same |
| CN105033958B (en) * | 2012-08-16 | 2016-11-30 | 苏州宝时得电动工具有限公司 | Power tool and the operational approach of replacing this power tool work head |
| CN113510276A (en) * | 2021-07-08 | 2021-10-19 | 宁波市鑫磊工具有限公司 | Speed-adjustable electric drill with brush |
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Application publication date: 20120516 |