CN208084537U - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
- Publication number
- CN208084537U CN208084537U CN201820332144.0U CN201820332144U CN208084537U CN 208084537 U CN208084537 U CN 208084537U CN 201820332144 U CN201820332144 U CN 201820332144U CN 208084537 U CN208084537 U CN 208084537U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- plane
- shell
- circular saw
- electric circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of electric circular saws, including：Saw blade, motor, shell, bottom plate and battery pack；Saw blade can be dynamic by shaft rotation of first axle, motor includes the motor shaft for driving saw blade to rotate, shell is formed with the receiving portion for accommodating motor, bottom plate forms the base plate plane for being useful for contacting with cutter member to be cut, battery pack extends in the first plane in giving electric machine with energy source, base plate plane；Shell is also formed with：Battery pack is removably bound to shell by engaging portion and main handle, engaging portion, and main handle includes the first grip part for being held for user；Main handle connection engaging portion and receiving portion；The first axle that motor shaft is rotated relative to the axis of housing into rotation with saw blade is mutually perpendicular to；When base plate plane and first axle are mutually parallel, projection of the battery pack in the first plane is located at except projection of the bottom plate in the first plane.The efficient of the electric circular saw, longevity of service and structure setting are reasonable.
Description
Technical field
The utility model is related to a kind of power tools, and in particular to a kind of electric circular saw.
Background technology
Electric circular saw is commonly used in cutting timber, plastics etc. for user.In existing electric circular saw, the axis of saw blade rotation is logical
It is often mutually parallel with electrical axis, planetary gear reducing mechanism would generally be set between saw blade and motor, still, can make in this way
At the less efficient of this electric circular saw.And the usual rated input power of electric circular saw of existing direct current class is relatively low, battery pack
Nominal voltage may not be able to meet the needs of power high, longevity of service and load capacity are strong etc..
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of efficient, longevity of service, knots
Rational electric circular saw is arranged in structure.
In order to realize above-mentioned target, the utility model adopts the following technical scheme：
A kind of electric circular saw, including：Saw blade, motor, shell, bottom plate and battery pack；Saw blade can be dynamic by shaft rotation of first axle,
Motor includes the motor shaft for driving saw blade to rotate, and shell is formed with the receiving portion for accommodating motor, and bottom plate forms useful
In the base plate plane contacted with cutter member to be cut, battery pack is in giving electric machine with energy source, and base plate plane is in the first plane
Extend；Shell is also formed with：Battery pack is removably bound to shell by engaging portion and main handle, engaging portion, and main handle includes
The first grip part for being held for user；Main handle connection engaging portion and receiving portion；Axis of the motor shaft with respect to housing into rotation
It is mutually perpendicular to the first axle of saw blade rotation；When base plate plane and first axle are mutually parallel, battery pack is in the first plane
Interior projection is located at except projection of the bottom plate in the first plane.
Further, when base plate plane and first axle are mutually parallel, projection of first grip part in the first plane
Except projection of the bottom plate in the first plane.
Further, motor shaft along the setting of first straight line direction surrounded in receiving portion made of in inner cavity；First straight line
Direction is mutually perpendicular to first axle；Base plate plane constitutes the second axis that can be parallel to first axle using one as axis with shell
Rotation connection；When base plate plane and first axle are mutually parallel and distance is nearest between base plate plane and first axle, the
One straight line intersects with base plate plane inclination.
Further, battery pack is bound to engaging portion along second straight line direction；Base plate plane can be with one with shell composition
The second axis for being parallel to first axle is the rotation connection of axis；It is mutually parallel and and first axle in base plate plane and first axle
When distance is nearest between line, second straight line intersects with base plate plane inclination.
Further, battery pack includes：Multiple battery core units and battery pack housing, around being formed with for accommodating battery core list
The battery compartment of member；Battery pack housing is formed with the groove being embedded in for engaging portion when battery pack is bound to shell.
Further, the nominal voltage of battery pack is 48V；The multiple battery core unit groups being sequentially connected in series of battery pack, Mei Ge electricity
Core unit group includes two battery core units parallel with one another.
Further, battery pack includes：Multiple battery core units and battery pack housing；Battery pack housing is surrounded to be formed with and is used for
Accommodate the battery compartment of battery core unit；A gap is separated with so that shell is at this between two battery core units in multiple battery core units
Gap location, which is recessed, to be formed fluted, and when battery pack is bound to shell, binding site is in groove.
Further, electric circular saw further includes：The circuit board being arranged in receiving portion；Circuit board is electrically connected with motor composition；
Shell is formed with air flow inlet and air stream outlet, flows into shell from air flow inlet and flows out the radiating airflow of shell from air stream outlet
Followed by circuit board and motor.
Further, main handle is symmetrical arranged about a symmetrical plane, and motor shaft is located at respect to the axis of housing into rotation
In plane where symmetrical plane；When battery pack is bound to shell, battery pack is also symmetrical arranged about symmetrical plane.
Further, electric circular saw further includes：The worm and gear component of the transmission for the power realized between motor and saw blade.
The utility model is beneficial in that：The efficient of electric circular saw, longevity of service and structure setting are reasonable.
Description of the drawings
Fig. 1 is the stereogram of the electric circular saw of the utility model first embodiment；
Fig. 2 is the stereogram of another angle of the electric circular saw in Fig. 1；
Fig. 3 is the plan view of the electric circular saw in Fig. 1；
Fig. 4 is the rearview of the electric circular saw in Fig. 1；
Fig. 5 is the vertical view of the electric circular saw in Fig. 1；
Fig. 6 is stereogram of the electric circular saw when battery pack is detached in Fig. 1；
Fig. 7 is stereogram of the electric circular saw when shell is partially removed in Fig. 1；
Fig. 8 is stereogram of the electric circular saw when shell and position-limiting cover are partially removed in Fig. 1；
Fig. 9 is the stereogram of another angle of structure shown in Fig. 8；
Figure 10 is stereogram of the battery pack when battery pack housing is partially separated in Fig. 1；
Figure 11 is the stereogram of the circuit board and heat sink in Figure 10；
Figure 12 is the stereogram of the electric circular saw of second embodiment；
Figure 13 is the rearview of the electric circular saw in Figure 12；
Figure 14 is stereogram of the electric circular saw when battery pack is detached in Figure 12；
Figure 15 is the stereogram of the electric circular saw of 3rd embodiment；
Figure 16 is the rearview of the electric circular saw in Figure 15；
Figure 17 is stereogram of the electric circular saw when battery pack is detached in Figure 15.
Specific implementation mode
The electric circular saw 100 of first embodiment shown in FIG. 1 is used to cut cutter member to be cut for user, such as can be cut for user
Cut timber, plastics, stone material etc..
As shown in Figures 1 to 9, electric circular saw 100 includes：Shell 11, saw blade 12, motor 13, supply unit and bottom plate 15,
In, supply unit includes the battery pack 14 for providing energy source to electric circular saw 100, in the present embodiment, battery pack 14
Number is 1, saw blade 12 be can be the dynamic circular saw blade 12 of shaft rotation with first axle 101.
Shell 11 includes the receiving portion 111 for accommodating motor 13, and receiving portion 111 is formed with for placing in motor 13
Chamber.Shell 11 is also formed with：Main handle 112 and auxiliary handle 113.Receiving portion 111 is located at the side of saw blade 12, main handle 112
It is held for a hand for user to manipulate electric circular saw 100, is additionally provided on main handle 112 and is opened for controlling electric circular saw 100
The Operation switch 112a stopped, auxiliary handle 113 are used to hold for the another hand of user.Saw blade 12 is in opposite shell 11 with first
Axis 101 cuts workpiece when being moved for shaft rotation.Motor 13 includes the motor shaft 131 that can be moved for shaft rotation with electrical axis 102, motor shaft
Line 102 is mutually perpendicular to first axle 101.Battery pack 14 can be removably bound to shell 11 by user to be carried out to motor 13
Power supply.Bottom plate 15 includes the base plate plane 151 for being contacted with cutter member to be cut, and base plate plane 151 extends in the first plane.Bottom
Plate 15 can be also the rotation connection of axis with second axis 103 with the composition of shell 11, what which also rotated with saw blade 12
First axle 101 is mutually parallel.In this way, when bottom plate 15 is moved with second axis 103 for shaft rotation with respect to shell 11, saw blade 12 stretches out
Size to the cut portion 121 of the downside of base plate plane 151 can also change correspondingly, and be cut so as to adjusting cutter member to be cut
Size.
Specifically, receiving portion 111 extends along 104 direction of first straight line substantially, 104 direction of first straight line and saw blade 12
The first axle 101 of rotation is mutually perpendicular to.In this way, motor 13 can also be arranged in receiving portion along 104 direction of first straight line substantially
111 say surround made of in inner cavity, to which electrical axis 102 can be substantially parallel to one another or overlap with first straight line 104.When
When base plate plane 151 and first axle 101 are mutually parallel and distance is nearest between first axle 101, first straight line 104 also with
Base plate plane 151 tilts the angle being crossed to form more than 0 degree and less than or equal to 20 degree.In order to realize that motor 13 can drive saw blade
12 is dynamic for shaft rotation with first axle 101, and electric circular saw 100 further includes the worm gear realized power between motor 13 and saw blade 12 and transmitted
Worm component 16.
Main handle 112 includes the first grip part 112b for being held for user, and the first grip part 112b is substantially along first
Direction 105 extends, and auxiliary handle 113 includes the second grip part 113a for being held for user, and the second grip part 113a is basic
106 extend in a second direction.Wherein, main handle 112 also about a symmetrical plane 107 be symmetrical arranged, the symmetrical plane 107 with
First axle 101 is mutually perpendicular to.When base plate plane 151 and first axle 101 are mutually parallel and base plate plane 151 and first axle
The distance between 101 it is nearest when, the symmetrical plane 107 of main handle 112 is also mutually perpendicular to base plate plane 151, first hold prolong
The first direction 105 stretched tilts the angle for being crossed to form angle more than or equal to 30 degree and less than or equal to 60 degree with base plate plane 151,
And at this moment the second grip part 113a extend second direction 106 be mutually parallel with base plate plane 151 or with 151 phase of base plate plane
Friendship forms angle of the angle more than 0 degree and less than 20 degree, and the second direction 106 that the second grip part 113a extends also is put down with symmetrical
Face 107 tilts the angle for being crossed to form angle more than or equal to 50 degree and less than or equal to 70 degree, to be held respectively when user's both hands
When the first grip part 112b and the second grip part 113a, the direction where the arm of two hands intersects, so that main
The setting of hand 112 and auxiliary handle 113 more meets ergonomics.
Shell 11 is also formed with the engaging portion 114 for removably combining battery pack 14, and engaging portion 114 is arranged at main
One end of hand 112, main handle 112 connect engaging portion 114 and receiving portion 111, and engaging portion 114 is also connected to main handle 112 and holds
Portion 111 is received, in this way, main handle 112, receiving portion 111 and 114 three of engaging portion are sequentially connected and surround formation there are one for supplying
User hold the hand of the first grip part 112b by opening 115, which is located at motor 13 far from worm and gear component 16
Side, in other words, motor 13 setting opening 115 and worm and gear component 16 between.Battery pack 14 is along second straight line 108
Direction is inserted to engaging portion 114, which can be mutually parallel or overlap with electrical axis 102, second straight line
108 first axles 101 also rotated with saw blade 12 are mutually perpendicular to.Wherein, in the present embodiment, when the inserting of battery pack 14 to combination
When portion 114, when base plate plane 151 and first axle 101 are mutually parallel, projection of the battery pack 14 in the first plane is located at bottom
Except projection of the plate 15 in the first plane, in this way, along perpendicular to first axle 101 and being parallel to the side of base plate plane 151
Upwards, it is moved after the center of gravity of entire electric circular saw 100, so that on the direction of first axle 101, electric circular saw
100 center of gravity can be between the first grip part 112b and the second grip part 113a, and then improves the balance quality of complete machine.
Be mutually parallel in base plate plane 151 and first axle 101 and between base plate plane 151 and first axle 101 away from
From it is nearest when, the first grip part 112b in the first plane projection be located at projection of the bottom plate 15 in the first plane except, and
Projections of the second grip part 113a in the first plane is located at bottom plate 15 in the projection in the first plane, in such manner, it is possible to so that
The distance between first grip part 112b and the second grip part 113a are sufficiently large, to hold the first gripping respectively when user's both hands
When portion 112b and the second grip part 113a, manipulation electric circular saw 100 that user can be more stable.
As shown in Fig. 1 and Figure 10, battery pack 14 includes：Battery pack housing 141 and battery core unit 142, wherein battery involucrum
Body 141 surrounds the battery compartment 143 being formed with for accommodating battery core unit 142, and the number of battery core unit 142 is multiple.In this reality
It applies in example, the rated input power of electric circular saw 100 is more than or equal to 1.3KW and is less than or equal to 1.7KW, furthermore, electricity circle
The rated input power of saw 100 is 1.5KW, and the diameter of saw blade 12 is more than or equal to 0.15m and is less than or equal to 0.21m, further
For, a diameter of 0.185m of saw blade 12.Therefore, it in order to avoid oversized, the preponderance of electric circular saw 100, needs simultaneously
Meet the demand of the capacity of battery pack 14 in supply unit, also so that the weight of the nominal voltage and electric circular saw 100 of battery pack 14
Ratio be more than or equal to 6V/Kg and be less than or equal to 12V/Kg, furthermore, also so that nominal voltage and the electricity of battery pack 14 are justified
The ratio of the weight of saw 100 is more than or equal to 7.5V/Kg and is less than or equal to 9V/Kg.In this way, the nominal voltage of battery pack 14 can be by
Be arranged in a reasonable range, to meet complete machine declared working condition demand, according to the nominal voltage be arranged battery pack
14 rated capacity enables to the rated capacity the case where meeting the needs of users the discharge time for meeting battery pack 14
Under, the size of the complete machine of electric circular saw 100 can be reduced as far as possible and reduce the weight of electric circular saw 100.Therefore it says, the present invention
In the ratio of weight of nominal voltage and electric circular saw 100 of battery pack 14 be the load capacity of overall balance electric circular saw 100, work
Make a parameter of duration, size and weight etc..
Furthermore, in order to meet operating time of the electric circular saw 100 in the case of declared working condition, also so that the present invention
The ratio of the joint number for the battery core unit 142 that the diameter of middle saw blade 12 is included with supply unit be more than or equal to 6mm/ save and less than etc.
It is saved in 11mm/, furthermore, the ratio of the joint number for the battery core unit 142 that diameter and the supply unit of saw blade 12 are included is big
In equal to 6mm/ save and less than or equal to 8.5mm/ save so that electric circular saw 100 can in the case where meeting the needs of operating mode,
The discharge time of supply unit also disclosure satisfy that the demand of user.More specifically, in the present embodiment, the number of battery pack 14
It is 1, the nominal voltage of battery pack 14 is set to 48V, and battery core unit 142 is lithium-ion electric core, in the specified of battery core unit 142
At least to include 12 economize on electricity core units 142 when voltage is 4V, in battery pack 14.And in order to enable the rated capacity of battery pack 14 is full
The demand of sufficient discharge time, also so that whole battery core units 142 in battery pack 14 constitute multiple battery cores being sequentially connected in series
142 groups of unit, 142 groups of each battery core unit includes two above-mentioned battery core units 142, in other words, in battery pack 14
Battery core unit 142 is that each two is connected in parallel and constitutes 142 groups of a battery core unit, and 142 groups of multiple battery core units go here and there successively again
Connection, wherein the number that 142 groups of battery core unit be 12, in this way so that battery pack 14 in the case of rated capacity meet demand,
The size of electric circular saw 100 is not too large and weight will not be too heavy.As described in Figure 10, the two of which battery core list of battery pack 14
Also there are one gaps 144 at interval between member 142, in this way, battery pack housing 141 can be recessed inwardly to be formed at the gap 144
Fluted 141a.In this way, when battery pack 14 is installed to engaging portion 114, engaging portion 114 can be located in groove 141a, groove
The recess direction of 141a and base plate plane 151 be substantially vertical or shape is intersected in the recess direction of groove 141a with base plate plane 151
At the angle more than or equal to 70 degree and less than or equal to 90 degree, in this way, when electric circular saw 100 carries out cutting operation, base plate plane 151
It is contacted with cutter member to be cut, battery pack 14 will not touch workpiece, to not interfere with the balance quality of complete machine, facilitate the behaviour of user
Make, and user also can more smoothly plug battery pack 14.When battery pack 14 is bound to engaging portion 114, battery pack 14
It is also symmetrical arranged about symmetrical plane 107, in this way, advantageously allowing the center of gravity of electric circular saw 100 close to the symmetrical flat of main handle 112
Face 107, to improve the balance quality of complete machine.When base plate plane 151 and first axle 101 are mutually parallel and base plate plane 151
When the distance between first axle 101 is nearest, battery pack 14 install to engaging portion 114 108 direction of second straight line also with bottom
Plate plane 151 tilts the angle being crossed to form more than 0 degree and less than or equal to 20 degree, to facilitate user to plug battery pack 14.
Along 104 direction of first straight line, motor 13 is arranged between battery pack 14 and worm and gear component 16, battery pack
14, motor 13 and worm and gear component 16 are set gradually along 104 direction of first straight line substantially.Electrical axis 102 is located at symmetrical
In plane where plane 107, motor 13 is also symmetrical arranged about symmetrical plane 107, so that the center of gravity energy of electric circular saw 100
It is enough further close to the setting of symmetrical plane 107, and then improve the balance quality of electric circular saw 100.
In order to radiate to motor 13, shell 11 is also formed with air flow inlet 11a and air stream outlet 11b, wherein air-flow
Entrance 11a is arranged in receiving portion 111 along 104 direction of first straight line close to one end of opening 115, air flow inlet 11a direction openings
115 open wide because at the engaging portion 114 that battery pack 14 is arranged between main handle 112 and receiving portion 111, therefore, when generate from
When air flow inlet 11a flows into the radiating airflow inside shell 11, which also can partly flow through electricity outside shell 11
Pond packet 14, to also have certain heat dissipation effect to battery pack 14, air flow inlet 11a be also located at battery pack 14 and motor 13 it
Between.Air stream outlet 11b is arranged in receiving portion 111, and air stream outlet 11b is also located at the close worm and gear component 16 of motor 13
At one end carried out to motor 13 in this way, radiating airflow flows to air stream outlet 11b from air flow inlet 11a can flow through motor 13
Efficient heat dissipation.Shell 11 is also formed with the babinet 116 for accommodating worm and gear, and babinet 116 is with respect to receiving portion 111 vertical
In the radially recess of electrical axis 102, in this way, the radiating airflow flowed out from air stream outlet 11b can flow through the outer of babinet 116
Side, so as to radiate to the worm and gear component 16 inside babinet 116.In the present embodiment, babinet 116 and appearance
It is integrally formed to receive portion 111, and the inside of babinet 116 and the inside of receiving portion 111 are interconnected, in this way, a part
Then radiating airflow can be flowed through from the inside of babinet 116 to flow out from saw blade 12, so as to further to worm and gear group
Part 16 radiates.
In order to control motor 13 and battery pack 14, electric circular saw 100 further includes circuit board 17, and circuit board 17 passes through
Conducting wire 171 is electrically connected with the composition of motor 13.Circuit board 17 is located in receiving portion 111, and it is gentle that circuit board 17 is additionally arranged at motor 13
Between inflow entrance 11a, to which radiating airflow can be followed by circuit board 17 and motor 13, and then radiating airflow can also give electricity
Road plate 17 radiates.In the present embodiment, circuit board 17 includes the circuit to extend in the plane perpendicular to electrical axis 102
Substrate 172, in order to match with the shape of receiving portion 111, circuit board 172 is substantially circular, can reduce circuit board in this way
17 spaces shared in receiving portion 111 so that the Structural assignments inside receiving portion 111 are more compact.
As described in Fig. 8 and Figure 11, electric circular saw 100 further includes the heat sink that can further radiate to circuit board 17
18.Heat sink 18 is arranged in receiving portion 111, and heat sink 18 is also arranged between air flow inlet 11a and motor 13.Heat sink
18 include the heat-radiating substrate 181 to extend in the second plane perpendicular to electrical axis 102, and the shape of heat-radiating substrate 181 can be with
It is essentially identical with the shape of circuit board 172, such as in the present embodiment, heat-radiating substrate 181 is also rounded.Heat sink 18 also wraps
Side wall 182 is included, side wall 182 surrounds heat-radiating substrate 181 along the edge of circular heat-radiating substrate 181, and side wall 182 is also surrounded at one
Extend in the cylindrical surface of electrical axis 102, in this way, heat-radiating substrate 181 and side wall 182 are surrounded and be formed with for mounting circuit boards 17
Accommodation space.It is also formed with multiple spaced radiating ribs 183 successively on side wall 182, radiating ribs 183 are along being parallel to motor
The direction of axis 102 extends, and is also formed between adjacent two radiating ribs 183 and is parallel to motor for being oriented to radiating airflow edge
The gas channel 184 that the direction of axis 102 extends, gas channel 184 also extend along the direction for being parallel to electrical axis 102.Even
Connect circuit board 17 and motor 13 conducting wire 171 can also be arranged on two adjacent radiating ribs 183 between be formed by air-flow
In channel 184, conducting wire 171 passes through gas channel 184, on the one hand can radiate to conducting wire 171, on the other hand can also in this way
It is enough that conducting wire 171 is fixed, furthermore the Structural assignments inside receiving portion 111 can also be made more compact.
In the present embodiment, the receiving portion 111 of shell 11 and babinet 116 are made of metal material, and can be made in this way
The hardness of shell 11 is met the requirements.Furthermore, receiving portion 111 and babinet 116 may be used aluminum alloy materials and be made, to
The weight of shell 11 can be reduced.Electric circular saw 100 further includes position-limiting cover 19, and position-limiting cover 19 is limited around limit space 191 is formed with
Conducting wire 171 is limited in the shell wall for contacting receiving portion 111 in limit space 191 to avoid conducting wire 171 by position cover 19, and position-limiting cover 19 is adopted
It is made from an insulative material.In this way, conducting wire 171 is limited in limit space 191, to which conducting wire 171 will not be with receiving portion 111
Shell wall contacts, and then ensure that the creepage distance between circuit board 17 and shell 11 meets the needs of safety, and also assures
Creepage distance between conducting wire 171 and shell 11 meets the needs of safety.Limit space 191 is opened wide towards motor 13, and limit is empty
Between 191 also towards air flow inlet 11a open wide, in this way, radiating airflow can flow through position-limiting cover 19 surround formation limit space
191 inside.
Figure 12 shows the structure of the electric circular saw 500 of second embodiment, and in the present embodiment, electric circular saw 500 includes and
The identical saw blade 52 of structure, motor and bottom plate 55, differ only in one embodiment, and supply unit includes a structure and pendulum
The battery pack 54 that position is different from the first embodiment is put, meanwhile, electric circular saw 500 also includes matching with 54 structure of battery pack
Shell 51.Wherein, electric circular saw 500 can be with first embodiment rated input power having the same, battery pack 54
One embodiment nominal voltage having the same, the battery core unit of same number, identical rated capacity, shell 51 can be with first
Embodiment main handle 512 having the same, auxiliary handle 513 and receiving portion 511.First embodiment is adapted with the present embodiment
Part can be applied in the present embodiment.The difference part of the present embodiment and first embodiment is mainly introduced below.
As shown in Figure 12 to Figure 14, in the present embodiment, along 502 direction of electrical axis, battery pack 54 is arranged in master
Between handle 512 and motor.Shell 51 is recessed between main handle 512 and receiving portion 511 is formed with receiving slit 514, receiving slit
514 is outwardly open, and battery pack 54 removably can be bound to receiving slit 514 in direction along a straight line.Battery pack 54 is bound to reception
The first axle 501 that the direction of slot 514 is rotated with saw blade 52 is mutually perpendicular to.It is mutually flat in base plate plane 551 and first axle 501
Row and when distance is nearest between base plate plane 551 and first axle 501, battery pack 54 is bound to the direction and bottom of receiving slit 514
Plate plane 551 is crossed to form angle of the angle more than or equal to 70 degree and less than or equal to 90 degree.
Along 502 direction of electrical axis, receiving slit 514 is arranged between main handle 512 and motor, and it is understood that right
For nominal voltage in this present embodiment is the battery pack 54 of 48V, when battery pack 54 is populated to receiving slit 514, in order to
Avoid entire electric circular saw 500 oversized on 502 direction of electrical axis, in the present embodiment, also so that battery pack 54
Battery pack housing 541 it is L-shaped.Specifically, battery pack housing 541 includes：First receiving portion 541a and the second receiving portion
541b, the first receiving portion 541a and the second receiving portion 541b are mutually perpendicular to.Battery core unit in battery pack 54 can be divided into two
Class, the first kind battery core unit being at least partially disposed in the first receiving portion 541a and is at least partially disposed in the second receiving portion
The second class battery core unit in 541b.In this way, when battery pack 54 is populated to receiving slit 514, the first receiving portion 541a is located at
In receiving slit 514, the second receiving portion 541b is located at outside receiving slit 514, and at this time the first receiving portion 541a along electrical axis 502
Size on direction is less than the second receiving portion 541b in the size on 502 direction of electrical axis, so as to reduce electric circular saw
500 in the size on 502 direction of electrical axis, so that the integral layout of entire electric circular saw 500 is more compact, is conducive to
The miniaturization of electric circular saw 500.
Figure 15 shows the structure of the electric circular saw 600 of 3rd embodiment, and in the present embodiment, electric circular saw 600 includes and
The identical saw blade 62 of structure, motor and bottom plate 65, differ only in one embodiment, and supply unit includes two structures and pendulum
The battery pack that position is different from the first embodiment, respectively the first battery pack 641 and the second battery pack 642 are put, meanwhile, electric circular saw
600 also include the shell 61 to match with first battery pack 641 and 642 structure of the second battery pack.Wherein, electric circular saw 600 can
With with first embodiment rated input power having the same, the first battery pack 641 can be having the same with first embodiment
Nominal voltage, the second battery pack 642 can also be wrapped with first embodiment nominal voltage having the same, the first battery pack 641
The sum of number of battery core unit that the number of the battery core unit contained and the second battery pack 642 are included and the electricity in first embodiment
The number that included battery core unit is wrapped in pond is identical.The sum of rated capacity of first battery pack 641 and the second battery pack 642 and
The rated capacity of battery pack in one embodiment is identical.Shell 61 can be with first embodiment main handle 612 having the same, auxiliary
Help handle 613 and receiving portion 611.The part that first embodiment is adapted with the present embodiment can be applied to the present embodiment
In.The difference part of the present embodiment and first embodiment is mainly introduced below.
As shown in Figure 15 to Figure 17, in the present embodiment, shell 61, which is formed with, to be respectively used to combine 641 He of the first battery pack
The the first engaging portion 614a and the second engaging portion 614b of second battery pack 642, along electrical axis direction, the first engaging portion
614a is arranged between the second engaging portion 614b and motor, and the first engaging portion 614a is additionally arranged at main handle 612 and receiving portion 611
Between.When the first battery pack 641 is bound to the first engaging portion 614a, the second battery pack 642 is bound to the second engaging portion 614b
When, along electrical axis direction, the first battery pack 641 is arranged between the second battery pack 642 and motor.
It is connect specifically, the first engaging portion 614a is recessed to be formed with for shell 61 between main handle 612 and receiving portion 611
Slot is received, receiving slit is outwardly open, and the first battery pack 641 is inserted along first direction 600a to receiving slit, and first direction 600a is also
The first axle rotated with saw blade 62 is mutually perpendicular to.Second engaging portion 614b is connected to main handle 612 and receiving portion 611, main
Hand 612 is also connected to the second engaging portion 614b and the first engaging portion 614a, to main handle 612, the first engaging portion 614a and the
Two engaging portion 614b surround jointly formed for held for user the hand of main handle 612 by opening 615.Second battery pack
642 removably can be bound to the second engaging portion 614b by 600b in a second direction, what second direction 600b was also rotated with saw blade 62
First axle is mutually perpendicular to.In the present embodiment, when base plate plane 651 and first axle are mutually parallel and base plate plane 651 with
When distance is nearest between first axle, first direction 600a is crossed to form more than or equal to 70 degree and is less than with base plate plane 651 etc.
In 90 degree of angle, second direction 600b is crossed to form the folder more than or equal to 0 degree and less than or equal to 20 degree with base plate plane 651
Angle, and first direction 600a is also mutually perpendicular to second direction 600b, to facilitate user to plug the first battery pack 641 and second
Battery pack 642.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical solution obtained, all falls in the scope of protection of the utility model.
Claims (10)
1. a kind of electric circular saw, including：
Saw blade, can be dynamic by shaft rotation of first axle；
Motor includes the motor shaft for driving the saw blade rotation；
Shell is formed with the receiving portion for accommodating the motor；
Bottom plate is formed with the base plate plane for being contacted with cutter member to be cut；
Battery pack, for the electric machine with energy source；
The base plate plane extends in the first plane；
It is characterized in that：
The shell is also formed with：
The battery pack is removably bound to the shell by engaging portion；
Main handle includes the first grip part for being held for user；
The main handle connects the engaging portion and described accommodation section；The axis of the relatively described housing into rotation of the motor shaft and institute
The first axle for stating saw blade rotation is mutually perpendicular to；
When the base plate plane and the first axle are mutually parallel, projection position of the battery pack in first plane
Except projection of the bottom plate in first plane.
2. electric circular saw according to claim 1, it is characterised in that：
When the base plate plane and the first axle are mutually parallel, throwing of first grip part in first plane
Shadow is located at except projection of the bottom plate in first plane.
3. electric circular saw according to claim 1, it is characterised in that：
The motor shaft along the setting of first straight line direction surrounded in described accommodation section made of in inner cavity；The first straight line side
It is mutually perpendicular to the first axle；
The base plate plane constitutes the second axis that can be parallel to the first axle using one as the rotation of axis with the shell
Connection；
It is mutually parallel and distance between the base plate plane and the first axle in the base plate plane and the first axle
When nearest, the first straight line intersects with base plate plane inclination.
4. electric circular saw according to claim 1, it is characterised in that：
The battery pack is bound to the engaging portion along second straight line direction；
The base plate plane constitutes the second axis that can be parallel to the first axle using one as the rotation of axis with the shell
Connection；
When the base plate plane and the first axle are mutually parallel and distance is nearest between the first axle, described
Two straight lines intersect with base plate plane inclination.
5. electric circular saw according to claim 1, it is characterised in that：
The battery pack includes：
Multiple battery core units；
Battery pack housing, around the battery compartment being formed with for accommodating the battery core unit；
The battery pack housing is formed with the groove being embedded in for the engaging portion when the battery pack is bound to the shell.
6. electric circular saw according to claim 1, it is characterised in that：
The nominal voltage of the battery pack is 48V；
The multiple battery core unit groups being sequentially connected in series of the battery pack, each battery core unit group include two battery core lists parallel with one another
Member.
7. electric circular saw according to claim 1, it is characterised in that：
The battery pack includes：
Multiple battery core units；
Battery pack housing, around the battery compartment being formed with for accommodating the battery core unit；
A gap is separated with so that the shell is in the gap between two battery core units in multiple battery core units
Locating to be recessed, it is fluted to be formed, and when the battery pack is bound to the shell, the binding site is in the groove.
8. electric circular saw according to claim 1, it is characterised in that：
The electric circular saw further includes：
Circuit board is arranged in described accommodation section；
The circuit board is electrically connected with motor composition；
The shell is formed with air flow inlet and air stream outlet, flows into the shell from the air flow inlet and goes out from the air-flow
Mouth flows out the radiating airflow of the shell followed by the circuit board and the motor.
9. electric circular saw according to claim 1, it is characterised in that：
The main handle is symmetrical arranged about a symmetrical plane, and the axis of the relatively described housing into rotation of the motor shaft is located at institute
It states in the plane where symmetrical plane；When the battery pack is bound to the shell, the battery pack is also about described symmetrical flat
Face is symmetrical arranged.
10. according to the electric circular saw described in claim 1 to 9 any one, it is characterised in that：
The electric circular saw further includes：
Worm and gear component realizes the transmission of power between the motor and the saw blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820332144.0U CN208084537U (en) | 2018-03-09 | 2018-03-09 | Electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820332144.0U CN208084537U (en) | 2018-03-09 | 2018-03-09 | Electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208084537U true CN208084537U (en) | 2018-11-13 |
Family
ID=64062299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820332144.0U Active CN208084537U (en) | 2018-03-09 | 2018-03-09 | Electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208084537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649641A (en) * | 2020-05-12 | 2021-11-16 | 南京德朔实业有限公司 | Electric circular saw |
-
2018
- 2018-03-09 CN CN201820332144.0U patent/CN208084537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649641A (en) * | 2020-05-12 | 2021-11-16 | 南京德朔实业有限公司 | Electric circular saw |
| CN113649641B (en) * | 2020-05-12 | 2024-03-15 | 南京泉峰科技有限公司 | Electric circular saw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208262881U (en) | Electric circular saw | |
| JP5959619B2 (en) | Hand-held power tool and battery pack for hand-held power tool | |
| JP6474764B2 (en) | Cutting machine | |
| CN201217206Y (en) | Wireless outdoor electric tool system | |
| WO2020038448A1 (en) | Snowplow | |
| CN206445291U (en) | power tool for cutting | |
| US20060213333A1 (en) | Battery-driven screwdriver | |
| US20110175572A1 (en) | Battery-operated screwdriver and charger shell therefor | |
| JP2014079873A (en) | Power tool | |
| JP2014147353A (en) | Electric lawn mower | |
| CN208084537U (en) | Electric circular saw | |
| CN212704724U (en) | Cutting tool | |
| CN206614688U (en) | Electric saw | |
| WO2006055303A2 (en) | Ergonomically efficient cordless power tool | |
| JP7262057B2 (en) | Power tools and battery packs | |
| CN113649641B (en) | Electric circular saw | |
| JP5463907B2 (en) | Electric tool | |
| WO2021065270A1 (en) | Electric tool and battery pack | |
| CN102138267A (en) | An accessory and charging system for a rechargeable hand-held electrical device | |
| JP6480975B2 (en) | Electric tool | |
| CN108818384A (en) | A kind of electric screw driver | |
| CN213471501U (en) | Electric circular saw | |
| CN213471500U (en) | Electric circular saw | |
| CN214721118U (en) | Chain saw | |
| CN217393468U (en) | Double cell package piercing press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
|
| CP03 | Change of name, title or address |