CN206614688U - Electric saw - Google Patents

Electric saw Download PDF

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Publication number
CN206614688U
CN206614688U CN201720215245.5U CN201720215245U CN206614688U CN 206614688 U CN206614688 U CN 206614688U CN 201720215245 U CN201720215245 U CN 201720215245U CN 206614688 U CN206614688 U CN 206614688U
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CN
China
Prior art keywords
receiving portion
motor
equations
axle
accommodating chamber
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CN201720215245.5U
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Chinese (zh)
Inventor
付祥青
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Nanjing Chervon Industry Co Ltd
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Nanjing Chervon Industry Co Ltd
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Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to EP17199980.8A priority Critical patent/EP3318358B1/en
Priority to US15/804,278 priority patent/US10532489B2/en
Application granted granted Critical
Publication of CN206614688U publication Critical patent/CN206614688U/en
Active legal-status Critical Current
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Abstract

The utility model discloses a kind of electric saw, including:Housing, saw blade, motor, circuit board, heat sink and bottom plate, saw blade is used to cut workpiece to be cut, motor is used to drive saw blade to rotate by axle of first axle, circuit board is used for controlled motor, heat sink is used to radiate, and bottom plate is formed with the base plate plane for being contacted when cutting workpiece with workpiece;Wherein, housing includes:First receiving portion and the second receiving portion, the first receiving portion are formed with the first accommodating chamber for accommodating motor, and the second receiving portion extends from one end in two ends of the edge of the first receiving portion perpendicular to the direction of first axle along the direction parallel to base plate plane;Second receiving portion is formed with the second accommodating chamber connected with the first accommodating chamber, and circuit board and heat sink are arranged at the second accommodating chamber.Electric saw of the present utility model it is rational in infrastructure, user uses more convenient.

Description

Electric saw
Technical field
The utility model is related to a kind of electric saw, and in particular to a kind of machine for working stone.
Background technology
Machine for working stone is as a kind of electric saw, and its rotating speed is high, can be used in cutting stone material, ceramic tile.Inside existing machine for working stone The part that the setting of circuit board and heat sink causes housing and is used to placing circuit board and heat sink influence whether user gripping or Person is used, and heat sink can be also restricted to the radiating efficiency of motor.In addition, the heavier-weight of machine for working stone complete machine, user is only Only by being hold by one hand handle to operate the machine for working stone, it tends to be difficult to ensure the stability of operation.Furthermore, the housing of machine for working stone and Bottom plate also constitutes rotation connection, but the less stable of the existing structure for making both composition rotate connection, makes for a long time It can be failed after.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of rational in infrastructure, good heat dissipation effect Electric saw.
In order to realize above-mentioned target, the utility model is adopted the following technical scheme that:
A kind of electric saw, including:Housing, saw blade, motor, circuit board, heat sink and bottom plate;Saw blade is used for work to be cut Part is cut, and motor is used to drive saw blade to rotate by axle of first axle, and circuit board is used for controlled motor, and heat sink is used to dissipate Heat, bottom plate is formed with the base plate plane for being contacted when cutting workpiece with workpiece;Wherein, housing includes:First receiving portion and Second receiving portion, the first receiving portion is formed with the first accommodating chamber for accommodating motor, and the second receiving portion is from the first receiving portion Extend along one end in the two ends in the direction of first axle along the direction parallel to base plate plane;Second receiving portion is formed There is the second accommodating chamber connected with the first accommodating chamber, circuit board and heat sink are arranged at the second accommodating chamber.
Further, on the direction perpendicular to base plate plane, the second receiving portion is arranged at the center of motor.
Further, the second receiving portion and the first receiving portion are along parallel to the one end pair of first axle direction away from saw blade Together.
Further, housing also includes:For the handle portion gripped for user;Handle portion is surrounded with the first receiving portion and formed Have one be used for for user hand through with grip handle portion by hole;Second receiving portion is at one perpendicular to first axle Projection in plane, which is located at, to be passed through outside projection of the hole in the plane.
Further, on the direction perpendicular to base plate plane, the second receiving portion is more than apart from the distance of base plate plane etc. In 8mm and less than or equal to 30mm.
Further, heat sink includes:Heat-radiating substrate and multiple first kind radiating ribs, heat-radiating substrate are put down along parallel to bottom plate The direction extension in face, multiple first kind radiating ribs have first kind air outlet;Wherein, first kind radiating ribs are arranged at heat-radiating substrate On, first kind air outlet can on first axle direction with the first accommodating chamber be located at motor along first axle direction away from saw blade Side section aligned.
Further, heat sink also includes:Multiple Equations of The Second Kind radiating ribs, multiple Equations of The Second Kind radiating ribs have Equations of The Second Kind air-out Mouthful;Equations of The Second Kind radiating ribs are arranged on heat-radiating substrate, Equations of The Second Kind air outlet can on first axle direction with the first accommodating chamber Accommodate the section aligned of motor;Guide channel is also formed with heat-radiating substrate, guide channel is used to be oriented to from Equations of The Second Kind air outlet The radiating airflow of outflow flow to the first accommodating chamber be located at part of the motor along side of the first axle direction away from saw blade.
Or, heat sink also includes:Multiple Equations of The Second Kind radiating ribs, multiple Equations of The Second Kind radiating ribs have Equations of The Second Kind air outlet; Wherein, Equations of The Second Kind radiating ribs are arranged on heat-radiating substrate, Equations of The Second Kind air outlet can on first axle direction with the first accommodating chamber Receiving motor section aligned;On edge parallel to base plate plane and on the direction of first axle, Equations of The Second Kind radiating ribs It is shorter than first kind radiating ribs in one end close to motor.
Further, on the direction perpendicular to base plate plane, circuit board is arranged at the side of heat sink;Circuit board bag Include:Circuit substrate, first kind electronic component and Equations of The Second Kind electronic component, circuit substrate prolong along the direction parallel to base plate plane Stretch, first kind electronic component has the heating power for being more than or equal to a default heating power, Equations of The Second Kind electronic component, with small In the heating power of default heating power;Wherein, first kind electronic component be arranged at circuit substrate with first kind radiating ribs phase On corresponding position, Equations of The Second Kind electronic component is arranged on the position corresponding with Equations of The Second Kind radiating ribs of circuit substrate.
Further, electric saw is machine for working stone.
Another electric saw, including:Housing, saw blade, motor, circuit board and bottom plate;Saw blade is used to enter workpiece to be cut Row cutting, motor is used to drive saw blade to rotate by axle of first axle, and circuit board is used for controlled motor, and bottom plate, which is formed with, to be used for The base plate plane contacted during cutting workpiece with workpiece;Housing is respectively further comprised for making both composition parallel with one with bottom plate The first connector and the second connector connected in the second axis of first axle for the rotation of axle;Wherein, the first connector and One in second connector be formed with least two grooves, that another is formed with being embedded in for corresponding number is convex in groove Rise.
Further, the number of groove is 2, and raised number is 2.
Further, when the first connector forms groove and the second connector forms projection, the first connector also includes The overall both sides that can be constituted from multiple projections carry out spacing locating part to the entirety;When the second connector formation groove and When first connector forms projection, the overall both sides that the second connector also includes to be constituted from multiple projections are entered to the entirety The spacing locating part of row.
Further, housing also includes:For operating the handle portion of electric saw for user's gripping and for supplying user one Another hand is gripped with the auxiliary grip part of stable operation electric saw when hand grips handle portion;Wherein, along parallel to first On the direction of axis, auxiliary grip part and motor are respectively positioned at the both sides of handle portion.
Further, housing also includes:Shield for carrying out part encirclement to saw blade;Along parallel to first axle On direction, auxiliary grip part is at least partially disposed at side of the shield away from motor.
Further, aid in grip part to be more than or equal to 10mm parallel to the size on first axle direction on edge and be less than etc. In 30mm.
Further, auxiliary grip part is big along the size parallel to base plate plane and on the direction of first axle In equal to 10mm and less than or equal to 40mm.
Further, along along the direction parallel to first axle, auxiliary grip part and handle portion are respectively arranged at saw blade Both sides.
Further, auxiliary side of the grip part away from bottom plate is also formed with anti-slip veins.
Further, electric saw is machine for working stone.
The structure of the present utility model for being beneficial in that housing is so that each component arrangement of enclosure interior is reasonable, and radiates Effect is preferable.
Brief description of the drawings
Fig. 1 is a kind of stereogram of electric saw as the utility model embodiment;
Fig. 2 be electric saw in Fig. 1 from another view when stereogram;
Fig. 3 is the front view of the electric saw in Fig. 1;
Fig. 4 is the top view of the electric saw in Fig. 1;
Fig. 5 is the rearview of the electric saw in Fig. 1;
Fig. 6 is profile of the electric saw along line A-A in Fig. 5;
Fig. 7 is profile of the electric saw along line B-B in Fig. 5;
Fig. 8 is the enlarged diagram of the part-structure in Fig. 2;
Fig. 9 is structural representation when electric saw in Fig. 1 removes the first receiving portion and the second receiving portion.
Embodiment
Electric saw 100 as shown in Figures 1 to 5, is specifically as follows machine for working stone, and machine for working stone is mainly used in cutting tile, stone material Deng.As shown in Figures 1 to 7, the electric saw 100 can include:Housing 10, motor 51, transmission component 52, saw blade 53, bottom plate 54, electricity Road plate 55 and heat sink 20.Wherein, motor 51 is used to drive saw blade 53 to rotate for axle with first axle 101, transmission component 52 Transmission for entering action edge between motor 51 and saw blade 53, bottom plate 54 is formed with the bottom for being contacted with workpiece to be cut Plate plane 541, circuit board 55 is used for controlled motor 51, and heat sink 20 is used to carry out the heater elements such as circuit board 55, motor 51 Radiating.When motor 51 drive saw blade 53 with through the first axle 101 of itself be axle rotate when, saw blade 53 can pair with bottom plate put down The workpiece that face 541 is contacted carries out cutting operation.In addition, the motor 51 of the electric saw 100 in the utility model is inner-rotor brushless electricity Machine, the power output of the electric saw 100 can exceed 3000W.
Wherein, housing 10 is used to being formed the profile of electric saw 100, the inside of housing 10 be used to accommodating motor 51, transmission component 52, Saw blade 53, circuit board 55 and heat sink 20 etc..Housing 10 can include:Main part 11 and handle portion 12, wherein, handle portion 12 Main body 11 stretches out, and motor 51 and saw blade 53 are separately positioned on the both sides of handle portion 12.
The technical solution of the utility model, defines along the direction of first axle 101 and sets saw blade 53 here for convenience of explanation Side front side, set motor 51 side be rear side, also definition along perpendicular to base plate plane 541 direction set bottom plate 54 Side be downside, opposite side be upside.
Specifically, it is also about being formed with a hand for being used to making user between handle portion 12 and main part 11 from a sidepiece Point through to opposite side with grip handle portion 12 by hole 12a.It is additionally provided with handle portion 12 for gripping handle for user Press to operate the switch 12b of the electric saw 100 during portion 12.
The main part 11 of housing 10 includes:Form the first receiving portion 111 of the first accommodating chamber 1111 and form second and accommodate Second receiving portion 112 of chamber 1121, wherein, the first accommodating chamber 1111 is connected with the second accommodating chamber 1121.
Motor 51 is arranged in the first accommodating chamber 1111, and motor 51 has a motor shaft 511 for being used to export power.Need As long as it is noted that the main part of motor 51 is arranged on and can be understood as motor 51 in the first accommodating chamber 1111 and be contained in In first accommodating chamber 1111.For example say, only motor shaft 511 stretches out the other parts of the first accommodating chamber 1111 and motor 51 and set Put in the first accommodating chamber 1111, to those skilled in the art, still it is considered that motor 51 is accommodated in the first appearance Receive in chamber 1111.
Heat sink 20 and circuit board 55 are arranged in the second accommodating chamber 1121, and the second receiving portion 112 is from the first receiving portion 111 extend along the direction parallel to base plate plane 541, and the second receiving portion 112 is located at the edge of the first receiving portion 111 perpendicular to the One end in the two ends in the direction of one axis 101.
On the direction perpendicular to base plate plane 541, the second receiving portion 112 is arranged at the center of motor 51, and at this On direction, the second receiving portion 112 is also provided at the center of the first receiving portion 111.It should be noted that the second receiving portion 112 The center for being arranged at motor 51 refers to the second receiving portion 112 with the motor shaft 511 of motor 51 perpendicular to base plate plane 541 Direction on it is substantially aligned.In addition, the first receiving portion 111 and the second receiving portion 112 are remote parallel to the direction of first axle 101 on edge Align one end from saw blade 53.So so that the entirety that the first receiving portion 111 and the second receiving portion 112 are constituted is more easily manufactured, And internal space is larger, is easier to place large-sized heat sink 20 and circuit board 55, and then be more suitable for the utility model Powerful electric saw 100.And position and the tool of the second receiving portion 112 of relative first receiving portion 111 of the second receiving portion 112 Body structure enables being radiated to motor 51 of the higher efficiency of heat sink 20 in the second accommodating chamber 1121.
In addition, the second receiving portion 112 is located in a projection in the plane of first axle 101 passes through hole 12a Outside the projection of the plane.So, the setting of the position of the second receiving portion 112 will not also hamper user to handle portion 12 Grip.
Furthermore, on the direction perpendicular to base plate plane 541, the second receiving portion 112 is apart from base plate plane 541 apart from L1 More than or equal to 8mm and less than or equal to 30mm.So, when saw blade 53 is being cut to workpiece, thrown away from the lower edge of saw blade 53 Water more difficult get rid of to the second receiving portion 112.
More specifically, in the plane perpendicular to first axle 101, the first receiving portion 111 is a circular configuration, should Circular configuration can match with the profile of motor 51, and in the plane, the second receiving portion 112 is rectangular configuration;More enter one For step, the generally key shaped structure that the first receiving portion 111 and the second receiving portion 112 are constituted.
As shown in Fig. 2, Fig. 6 and Fig. 8, housing 10 also includes gear-box 13, and transmission component 52 is arranged in gear-box 13.Tooth Roller box 13 also includes the first connector 131, and bottom plate 54 also includes the second connector 542, is connected by the first connector 131 and second The cooperation of fitting 542 so that it is axle that bottom plate 54 and housing 10, which are constituted with one parallel to the second axis 102 of first axle 101, Rotate connection.
Specifically, the first connector 131 is formed with two groove 131a, and the second connector 542 is formed with two energy point The raised 542a in groove 131a is not embedded in.It should be understood that projection 542a and groove 131a number can be two More than.It again it will be understood that, in other embodiments, it is also possible that the second connector forms fluted, the first connector Form raised.
First connector 131 also includes:Embedded division 131b and limiting section 131c, embedded division 131b are embedded in the second connector In the space formed between 542 two projection 542a, limiting section 131c number is 2, and two limiting section 131c are from two The overall both sides along the direction of second axis 102 that raised 542a is constituted carry out spacing to the first connector 131.First connection Part 131 is also formed with shaft hole 131d, and shaft hole 131d runs through the first connector 131, the second connection along the direction of second axis 102 Part 542 is formed with the through hole with shaft hole 131d insertions when it is bound to the first connector 131.Electric saw 100 also includes one Through shaft hole 131d and the c-type pin 56 of through hole.
As shown in Figure 1 and Figure 4, housing 10 also includes:Shield 14, shield 14 is used to carry out part encirclement to saw blade 53, from And user is protected.Also extending one section to the direction away from saw blade 53 in the side of the remote motor 51 of shield 14 is used for The auxiliary grip part 15 gripped for user, along parallel on the direction of first axle 101, auxiliary grip part 15 is at least partially disposed at Side of the shield 14 away from motor 51.So, when user is operating the electric saw 100, the hand of user grips handle portion 12, The thumb and forefinger of another hand pinch auxiliary grip part 15, so as to reach the stable effect gripped to electric saw 100.Along flat Row is on the direction of first axle 101, and auxiliary grip part 15 is also and handle portion 12 is located at the both sides of saw blade 53 respectively, it is further and Speech, auxiliary grip part 15 and motor 51 are located at the both sides of handle portion 12 respectively, in such manner, it is possible to so that user easier stabilization Grip electric saw 100.
Auxiliary grip part 15 is being more than or equal to 10mm along the size L2 parallel to the direction of first axle 101 and is being less than or equal to 30mm, auxiliary grip part 15 is more than along the size L3 parallel to base plate plane 541 and on the direction of first axle 101 Equal to 10mm and less than or equal to 40mm.So, the size of auxiliary grip part 15 can adapt to the thumbnail size of user, so that Aid in the size of grip part 15 not too large and the obstruction to the visual angle of user can be reduced, and the size of auxiliary grip part 15 Will not be too small and user can be avoided thumb or forefinger slide in operation.In addition, auxiliary grip part 15 is away from bottom plate 54 side is also formed with anti-slip veins 151, so as to improve the stability of user's gripping.
As shown in Fig. 6, Fig. 7 and Fig. 9, heat sink 20 and circuit board 55 are put down in the second accommodating chamber 1121 along perpendicular to bottom plate The direction in face 541 is arranged in order, furthermore, and heat sink 20 is arranged on the top of circuit board 55.In addition, the electric saw 100 is also Including the fan 57 being arranged between motor 51 and saw blade 53, fan 57 can be driven and rotate by motor 51, and in 57 turns of fan The radiating airflow for flowing through circuit board 55, heat sink 20 and motor 51 can be produced when dynamic.Second accommodating chamber 1121 and first is held Chamber 1111 of receiving is connected, therefore, and the heat sink 20 in the second accommodating chamber 1121 can be oriented to radiating airflow and flow to the first receiving In chamber 1111, so as to be radiated to motor 51.Can be along the side parallel to first axle 101 in order that obtaining radiating airflow To flowing through motor 51, rear wall and the motor 51 along first of remote saw blade 53 of first receiving portion 111 along the direction of first axle 101 There is certain gap, the gap can be oriented to radiating airflow and flow through motor between rear end of the direction of axis 101 away from saw blade 53 51.Here, the first accommodating chamber 1111 along the direction of first axle 101 might as well be divided into two parts, respectively Part I 1111a Refer to that the first accommodating chamber 1111 is used for the part for accommodating motor 51 with Part II 1111b, wherein Part I 1111a, the Two part 1111b refer to that the first accommodating chamber 1111 is located at rear end and the first receiving portion of motor 51 along the direction of first axle 101 The part where gap between 111 rear wall.
Heat sink 20 is along the size parallel to the direction of first axle 101 and the first accommodating chamber 1111 along parallel to first axle The size in 101 directions is roughly the same.Specifically, heat sink 20 includes:Heat-radiating substrate 21, first kind radiating ribs 22 and Equations of The Second Kind Radiating ribs 23, wherein, on edge parallel to base plate plane 541 and on the direction of first axle 101, Equations of The Second Kind radiating ribs 23 It is shorter than first kind radiating ribs 22 in one end close to motor 51.Heat-radiating substrate 21 extends along the direction parallel to base plate plane 541, First kind radiating ribs 22 and Equations of The Second Kind radiating ribs 23 are arranged on heat-radiating substrate 21.First kind radiating ribs 22 go out with the first kind Air port 221, first kind air outlet 221 along parallel on the direction of first axle 101 with the first accommodating chamber 1111 be located at motor The section aligned of 51 sides away from saw blade 53, in other words first kind air outlet 221 is along parallel to the direction of first axle 101 It is upper to be alignd with the Part II 1111b of the first accommodating chamber 1111.Equations of The Second Kind radiating ribs 23 have Equations of The Second Kind air outlet 231, second Class air outlet 231 can be right along the part parallel to the receiving motor 51 on the direction of first axle 101 with the first accommodating chamber 1111 Together, in other words Equations of The Second Kind air outlet 231 aligns with the Part I 1111a of the first accommodating chamber 1111.In addition, because Equations of The Second Kind Radiating ribs 23 are shorter than first kind radiating ribs 22 in one end close to motor 51, so as to can also form guiding on heat-radiating substrate 21 Passage 24, the guide channel 24 is formed at the side of the close motor 51 of Equations of The Second Kind radiating ribs 23, and guide channel 24 can be oriented to certainly What the radiating airflow that Equations of The Second Kind air outlet 231 flows out flowed to the first accommodating chamber 1111 is located at side of the motor 51 away from saw blade 53 Part, that is to say the Part II 1111b for flowing to the first accommodating chamber 1111, so that being flowed from Equations of The Second Kind air outlet 231 The radiating airflow gone out also can flow through motor 51 along the direction of first axle 101.Wherein, first kind radiating ribs 22 can be oriented to radiating Air-flow flows out from first kind air outlet 221, then flows directly into Part II 1111b, so as to pass through the first kind on heat sink 20 The air quantity of the radiating airflow of the part of radiating ribs 22 is bigger.First kind radiating ribs 22 and Equations of The Second Kind radiating ribs 23 in the present embodiment It can extend along the direction perpendicular to first axle 101, so, first kind radiating ribs 22 and Equations of The Second Kind radiating ribs 23 can have There is identical air inlet 25, air inlet 25 is more than the edge of first kind air outlet 221 along the size L4 parallel to the direction of first axle 101 Parallel to the size L5 in the direction of first axle 101.It is corresponding with air inlet 25 in housing 10 as shown in Fig. 2 and Fig. 6 and Fig. 7 Air flow inlet 16 is also formed with position, air flow inlet 16 can be communicated to air inlet 25, in air flow inlet 16 and air inlet 25 Between can also be formed with mazy air intake passage, so as to prevent dust from entering to the second accommodating chamber 1121.It can manage Solution, the direction that first kind radiating ribs 22 and Equations of The Second Kind radiating ribs 23 can also intersect along being tilted with first axle 101 extends, this Sample can obtain more preferable radiating effect.In addition, the first receiving portion 111 is after along the direction of first axle 101 away from motor 51 Side-walls are also formed with the guide part 1112 of arc, and the guide part 1112 can be directed to the heat transmission gas up to the first accommodating chamber 1111 Flow flow direction motor 51.
Electronic component is provided with circuit board 55, these electronic components can generate heat so as to temperature rise in the course of the work, For the big electronic component of heating power, with greater need for their effective radiatings of progress.Specifically, circuit board 55 include:Circuit substrate 551, first kind electronic component 552 and Equations of The Second Kind electronic component 553.Wherein, circuit substrate 551 is along flat Row extends in the direction of base plate plane 541, and first kind electronic component 552 has the heating for being more than or equal to a default heating power Power, Equations of The Second Kind electronic component 553 has the heating power for being less than default heating power, therefore can cause the first electron-like member Part 552 is arranged on the position corresponding with first kind radiating ribs 22 of circuit substrate 551, and Equations of The Second Kind electronic component 553 is set In on the position corresponding with Equations of The Second Kind radiating ribs 23 of circuit substrate 551, in other words, first kind electronic component 552 is set In the underface of first kind radiating ribs 22, Equations of The Second Kind electronic component 553 is arranged on the underface of Equations of The Second Kind radiating ribs 23, such energy Enough Equations of The Second Kind electronic components 553 high to heating power carry out more efficient radiating.
General principle of the present utility model, principal character and advantage has 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 scheme obtained, all falls within protection domain of the present utility model.

Claims (10)

1. a kind of electric saw, including:
Housing;
Saw blade, for being cut to workpiece to be cut;
Motor, is rotated for driving the saw blade by axle of first axle;
Circuit board, for controlling the motor;
Heat sink, for radiating;
Bottom plate, is formed with the base plate plane for being contacted when cutting workpiece with workpiece;
It is characterized in that:
The housing includes:
First receiving portion, is formed with the first accommodating chamber for accommodating the motor;
Second receiving portion, from one end in the two ends in direction of the edge of first receiving portion perpendicular to the first axle along flat Row extends in the direction of the base plate plane;
Second receiving portion is formed with the second accommodating chamber connected with first accommodating chamber, the circuit board and the radiating Plate is arranged at second accommodating chamber.
2. electric saw according to claim 1, it is characterised in that:
On the direction perpendicular to the base plate plane, second receiving portion is arranged at the center of the motor.
3. electric saw according to claim 1, it is characterised in that:
Second receiving portion is with first receiving portion along parallel to one of the first axle direction away from the saw blade End alignment.
4. electric saw according to claim 1, it is characterised in that:
The housing also includes:For the handle portion gripped for user;
The handle portion and first receiving portion, which are surrounded, is formed with a hand being used for for user through to grip the handle Portion passes through hole;Second receiving portion passes through hole described in being located in a projection in the plane of the first axle Outside projection in the plane.
5. electric saw according to claim 1, it is characterised in that:
On the direction perpendicular to the base plate plane, second receiving portion is more than or equal to apart from the distance of the base plate plane 8mm and less than or equal to 30mm.
6. electric saw according to claim 1, it is characterised in that:
The heat sink includes:
Heat-radiating substrate, extends along the direction parallel to the base plate plane;
Multiple first kind radiating ribs, with first kind air outlet;
Wherein, the first kind radiating ribs are arranged on the heat-radiating substrate, and the first kind air outlet is in the first axle With the section aligned positioned at side of the motor away from the saw blade of first accommodating chamber on direction.
7. electric saw according to claim 6, it is characterised in that:
The heat sink also includes:
Multiple Equations of The Second Kind radiating ribs, with Equations of The Second Kind air outlet;
The Equations of The Second Kind radiating ribs are arranged on the heat-radiating substrate, and the Equations of The Second Kind air outlet is on the first axle direction With the section aligned of the receiving motor of first accommodating chamber;
It is also formed with the heat-radiating substrate:
Guide channel, it is described that the radiating airflow being oriented to from Equations of The Second Kind air outlet outflow flows to being located at for first accommodating chamber The part of side of the motor away from the saw blade.
8. electric saw according to claim 6, it is characterised in that:
The heat sink also includes:
Multiple Equations of The Second Kind radiating ribs, with Equations of The Second Kind air outlet;
Wherein, the Equations of The Second Kind radiating ribs are arranged on the heat-radiating substrate, and the Equations of The Second Kind air outlet is in the first axle With the section aligned of the receiving motor of first accommodating chamber on direction;Along parallel to the base plate plane and perpendicular to On the direction of the first axle, the Equations of The Second Kind radiating ribs are shorter than the first kind radiating in one end close to the motor Muscle.
9. electric saw according to claim 8, it is characterised in that:
On the direction perpendicular to the base plate plane, the circuit board is arranged at the side of the heat sink;
The circuit board includes:
Circuit substrate, extends along the direction parallel to the base plate plane;
First kind electronic component, the heating power with more than or equal to a default heating power;
Equations of The Second Kind electronic component, the heating power with less than the default heating power;
Wherein, the first kind electronic component is arranged at the position corresponding with the first kind radiating ribs of the circuit substrate On, the Equations of The Second Kind electronic component is arranged on the position corresponding with the Equations of The Second Kind radiating ribs of the circuit substrate.
10. the electric saw according to claim 1 to 9 any one, it is characterised in that:
The electric saw is machine for working stone.
CN201720215245.5U 2016-11-07 2017-03-06 Electric saw Active CN206614688U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17199980.8A EP3318358B1 (en) 2016-11-07 2017-11-03 Power tool
US15/804,278 US10532489B2 (en) 2016-11-07 2017-11-06 Power tool

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Application Number Priority Date Filing Date Title
CN201610976748 2016-11-07
CN2016109767484 2016-11-07

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Publication Number Publication Date
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CN201720212445.5U Active CN206614687U (en) 2016-11-07 2017-03-06 Electric saw

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019169673A1 (en) * 2018-03-09 2019-09-12 南京德朔实业有限公司 Electric circular saw
CN110614563A (en) * 2018-06-20 2019-12-27 南京德朔实业有限公司 Polishing tool
CN112743634A (en) * 2019-10-30 2021-05-04 南京德朔实业有限公司 Electric circular saw
CN112916953A (en) * 2019-12-06 2021-06-08 苏州宝时得电动工具有限公司 Cutting tool

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Publication number Priority date Publication date Assignee Title
CN111791190A (en) * 2019-04-03 2020-10-20 南京德朔实业有限公司 Multifunctional electric tool
CN110905169B (en) * 2019-11-13 2021-01-22 罗昕明 Floor assembly robot for interior decoration

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019169673A1 (en) * 2018-03-09 2019-09-12 南京德朔实业有限公司 Electric circular saw
CN110614563A (en) * 2018-06-20 2019-12-27 南京德朔实业有限公司 Polishing tool
CN110614563B (en) * 2018-06-20 2024-04-30 南京泉峰科技有限公司 Polishing tool
CN112743634A (en) * 2019-10-30 2021-05-04 南京德朔实业有限公司 Electric circular saw
CN112916953A (en) * 2019-12-06 2021-06-08 苏州宝时得电动工具有限公司 Cutting tool

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