CN107617958B - Sanding machine - Google Patents
Sanding machine Download PDFInfo
- Publication number
- CN107617958B CN107617958B CN201610559307.4A CN201610559307A CN107617958B CN 107617958 B CN107617958 B CN 107617958B CN 201610559307 A CN201610559307 A CN 201610559307A CN 107617958 B CN107617958 B CN 107617958B
- Authority
- CN
- China
- Prior art keywords
- guide plate
- working chassis
- sander
- heat dissipation
- chassis
- 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.)
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 55
- 239000000428 dust Substances 0.000 claims description 34
- 238000013459 approach Methods 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 4
- 244000137852 Petrea volubilis Species 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a sander, comprising: the shell is internally provided with a driving motor and an output shaft connected with the driving motor, and the driving motor is used for driving the output shaft to rotate; the working chassis is arranged at one end of the shell, and the output shaft is connected with the working chassis to drive the working chassis to rotate; the fan is arranged in the shell and is arranged on the output shaft, the fan comprises a fan main body, and an upper impeller is arranged on one side of the fan main body, which is far away from the working chassis; wherein, be equipped with the heat dissipation passageway through last impeller in the casing, heat dissipation passageway extends to the work chassis orientation, and heat dissipation passageway includes air intake and air outlet, and last impeller is located the air intake, and the air outlet is closer to the work chassis relative last impeller. According to the sander, the heat dissipation channel for heat dissipation extends towards the direction of the working chassis, and the air outlet is closer to the working chassis than the upper impeller, so that the holding area of the sander is increased. The operator can hold the casing with the fan from the side without touching the air outlet of the heat dissipation channel.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a sander.
Background
The sander is used as a common handheld electric tool and is widely applied to the polishing of wall surfaces or ground surfaces. The working chassis of the sander is provided with sanding materials such as sand paper and the like, and is connected with a driving device. When the polishing machine works, the driving device drives the working chassis device, so that the attached sand paper correspondingly rotates, and the surface of a workpiece to be polished is continuously polished, so that the workpiece is smooth and flat.
At present, along with the continuous improvement of the holding comfort and portability of a customer to an electric tool, the volume of the sander is further reduced on the premise of ensuring the polishing efficiency, so that the sander is convenient to hold and carry. Due to the structural defect of the sander, the small size of the sander can affect the heat dissipation effect of the sander, so that the sander is not beneficial to stable work and brings inconvenience to an operator.
Disclosure of Invention
Accordingly, it is necessary to provide a sander which can reduce the size without affecting heat dissipation, in order to solve the problem that the heat dissipation is affected by the reduction of the size of the sander.
A sander, comprising:
the shell is internally provided with a driving motor and an output shaft connected with the driving motor, and the driving motor is used for driving the output shaft to rotate;
the working chassis is arranged at one end of the shell, and the output shaft is connected with the working chassis to drive the working chassis to rotate; a kind of electronic device with high-pressure air-conditioning system
The fan is arranged in the shell and is arranged on the output shaft, the fan comprises a fan main body, and an upper impeller is arranged on one side of the fan main body, which is far away from the working chassis;
the machine shell is internally provided with a heat dissipation channel passing through the upper impeller, the heat dissipation channel extends towards the direction of the working chassis and comprises an air inlet and an air outlet, the upper impeller is positioned at the air inlet, and the air outlet is closer to the working chassis relative to the upper impeller.
The sander is different from the arrangement that the heat dissipation channel is parallel to the fan in the prior art, and because the heat dissipation channel for heat dissipation extends towards the direction of the working chassis, the air outlet is closer to the working chassis relative to the upper impeller, so that the holding area of the sander is increased. The operator can hold the casing that is equipped with the fan from the side direction, and need not the air outlet of contact heat dissipation passageway to avoid making this grinder be difficult to dispel the heat because of sheltering from the air outlet, improve this grinder and hold the comfort level, and make this grinder have good radiating effect.
In one embodiment, the casing is provided with a first guide plate, one end of the first guide plate is arranged at one side of the upper impeller at intervals, and the other end of the first guide plate extends towards a direction away from the central axis of the fan and gradually approaches the working chassis to form the heat dissipation channel.
In one embodiment, the first guide plate is arc-shaped, and the first guide plate is curved toward the working chassis.
In one embodiment, the projection size of the first guide plate in the direction of the working chassis is larger than the projection size of the upper impeller in the direction of the working chassis, and one end of the first guide plate, which is close to the working chassis, is closer to the working chassis than the upper impeller.
In one embodiment, the fan further comprises a lower impeller, and the lower impeller is arranged on one side of the fan main body, which is close to the working chassis.
In one embodiment, the sander further comprises a dust collecting device, a dust collecting channel penetrating through the lower impeller is arranged in the shell, an air outlet of the dust collecting channel is communicated with the dust collecting device, and an air outlet of the heat dissipation channel is communicated with the dust collecting channel.
In one embodiment, the casing is provided with a second guide plate, one end of the second guide plate is arranged at one side of the upper impeller at intervals, and the other end of the second guide plate extends towards a direction away from the central axis of the fan and gradually approaches the dust collection channel to form the heat dissipation channel.
In one embodiment, the second guide plate extends obliquely from an end near the fan toward the dust collection passage.
In one embodiment, the air outlet of the heat dissipation channel is located between the chassis and the working chassis.
In one embodiment, the casing is provided with a guiding structure, one end of the guiding structure is arranged at one side of the upper impeller at intervals, and the other end extends to the direction of the working chassis to the end, close to the working chassis, of the casing.
In one embodiment, the guide structure comprises a third guide plate and a fourth guide plate arranged at one end of the third guide plate, one end of the third guide plate is arranged at one side of the upper impeller at intervals, the other end of the third guide plate extends towards the direction of the working chassis, one end of the fourth guide plate is close to the third guide plate, and the other end of the fourth guide plate extends to the end, close to the working chassis, of the casing.
In one embodiment, the third guide plate is curved and extends in a curved manner toward the working chassis.
Drawings
Fig. 1 is a cross-sectional view of a sander according to a first embodiment;
fig. 2 is a cross-sectional view of a sander according to a second embodiment;
fig. 3 is a cross-sectional view of a sander according to a third embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, 2 and 3, a sander 100 according to the present preferred embodiment includes a housing 20, a fan 40 and a working chassis 60. The work chassis 60 is provided with a sand paper or the like, and an operator can hold the housing 20 from the side to control the sander 100 to polish the work by contacting the work chassis 60 with the work.
Specifically, a driving motor 21 and an output shaft 22 connected to the driving motor 21 are disposed in the casing 20, and the driving motor 21 is used for driving the output shaft 22 to rotate. The working chassis 60 is disposed at one end of the casing 20, and the output shaft 22 is connected with the working chassis 60 to drive the working chassis 60 to rotate, so as to polish the workpiece to be processed. The fan 40 is disposed in the casing 20 and mounted on the output shaft 22, so as to rotate under the driving of the output shaft 22. The fan 40 includes a fan body 42, and an upper impeller 44 is provided on a side of the fan body 42 remote from the work chassis 60. The casing 20 is provided with a heat dissipation channel 23 passing through an upper impeller 44 of the fan 40, and the heat dissipation channel 23 extends towards the working chassis 60, and includes an air inlet and an air outlet, the upper impeller 44 is located at the air inlet, and the air outlet is closer to the working chassis 60 than the upper impeller 44.
Unlike the prior art in which the heat dissipation channel is parallel to the fan, the sander 100 increases the holding area of the sander 100 because the heat dissipation channel 23 for heat dissipation extends toward the working chassis 60 and the air outlet is closer to the working chassis 60 than the upper impeller 44. An operator can hold the casing 20 provided with the fan 40 from the side direction without touching the air outlet of the heat dissipation channel 23, thereby avoiding the heat dissipation difficulty of the sander 100 caused by shielding the air outlet, improving the holding comfort of the sander 100 and ensuring that the sander 100 has good heat dissipation effect.
With continued reference to fig. 1, 2 and 3, the fan 40 further includes a lower impeller 46, and the lower impeller 46 is disposed on a side of the fan body 42 adjacent to the working chassis 60. The upper impeller 44 is used for generating air suction pressure for cooling the driving motor 21 when the fan 40 rotates, so that external air for cooling the driving motor 21 is sucked into the casing 20 from one end of the casing 20 far away from the working chassis 60, and the cooling air flow passes through the driving motor 21 to take away heat generated by the driving motor 21, and finally is discharged out of the casing 20 through the heat dissipation channel, so that the heat generated by the driving motor 21 is discharged out of the sander 100. The lower impeller 46 is used for generating dust suction wind pressure when the fan 40 rotates, so that dust generated when the sander 100 polishes is absorbed through the dust suction opening 62 formed on the working chassis 60, and the dust generated by polishing is prevented from diffusing in the external environment to pollute the environment and influence the health of operators.
Specifically, the housing is provided with a first guide plate 24. One end of the first guide plate 24 is arranged at one side of the upper impeller 44 at intervals, and the other end extends away from the central axis of the fan 40 and gradually approaches the working chassis 60 to form the heat dissipation channel 23. In this way, the sander 100 guides the air flow through the first guide plate 24, and the heat generated by the drive motor 21 is discharged from the heat dissipation path 23.
Further, in the present embodiment, the first guide plate 24 is arc-shaped, and the first guide plate 24 is bent toward the working chassis 60, so that the airflow smoothly turns out of the housing 20 along the first guide plate 24, and better heat dissipation efficiency is achieved.
Thus, compared with the parallel arrangement of the heat dissipation channel and the fan in the prior art, the distance from one end of the housing 20 far away from the working chassis 60 to the air outlet of the heat dissipation channel 23 is enlarged in the embodiment, so that the grippable area of the housing 20 of the sander 100 is enlarged, and the influence of the operator on heat dissipation due to blocking the air outlet of the heat dissipation channel 23 when the operator holds the housing 20 of the sander 100 laterally is avoided.
Further, the projection size of the first guide plate 24 in the direction of the working chassis 60 is larger than the projection size of the upper impeller 44 in the direction of the working chassis 60, and one end of the first guide plate 24 close to the working chassis 60 is closer to the working chassis 60 than the upper impeller 44, so as to cover the upper impeller 44 to accommodate the upper impeller 44 in the casing 20, and prevent the upper impeller 44 from being exposed to the external environment.
As shown in fig. 2, in a second embodiment, the sander 100 includes a dust collection device (not shown). A dust collecting channel 27 passing through the lower impeller 46 is arranged in the casing 20, and an air outlet of the dust collecting channel 27 is communicated with a dust collecting device. Dust generated during the operation of the sander 100 is sucked into the dust collecting channel 27 and enters the dust collecting device through the dust collecting channel 27, so that the clean recovery of the processing dust is realized, the environment is protected, and the influence of the dust on the health of an operator can be avoided. The air outlet of the heat dissipation channel 23 is communicated with the dust collection channel 27, so that the air flow in the heat dissipation channel 23 can enter the dust collection device through the dust collection channel 27, and the air flow in the heat dissipation channel 23 can be smoothly discharged out of the sander 100 without arranging other air outlets on the shell 20, so that the structure of the sander 100 is simplified, the good heat dissipation effect is achieved, and the holding comfort of an operator is prevented from being influenced.
Specifically, the casing 20 is provided with a second guide plate 25, one end of the second guide plate 25 is disposed at a side of the upper impeller 44 at intervals, and the other end extends in a direction away from the central axis of the fan 40 and gradually approaches the dust collecting passage 27 to form the heat dissipation passage 23. In this way, the second guide plate 25 guides the airflow to flow, so that the heat generated by the driving motor 21 is discharged from the heat dissipation channel 23 into the dust collection channel 27, and is prevented from being directly discharged from the side wall of the casing 20 into the external environment, thereby affecting the holding comfort and heat dissipation effect of the operator.
Further, the second guide plate 25 extends obliquely from the end close to the fan 40 to the dust collecting channel 27, so that the air flow is guided to enter the dust collecting channel 27 quickly, and the heat dissipation efficiency is improved.
As shown in fig. 3, in the third embodiment, the heat dissipation channel 23 extends toward the working chassis 60, and the air outlet of the heat dissipation channel 23 is located between the casing 20 and the working chassis 60, so that air flow can be discharged from between the casing 20 and the working chassis 60 into the external environment, and an operator can hold any part of the casing 20 laterally without being disturbed by the air outlet of the heat dissipation channel 23.
Specifically, the casing 20 is provided with a guiding structure 26, one end of the guiding structure 26 is arranged at one side of the upper impeller 44 at intervals, and the other end extends towards the working chassis 60 to the end of the casing 20 close to the working chassis 60, so that air flow is guided to be discharged from between the casing 20 and the working chassis 60.
More specifically, the guide structure 26 includes a third guide plate 262 and a fourth guide plate 264 disposed at one end of the third guide plate 262. One end of the third guide plate 262 is arranged at one side of the upper impeller 44 at intervals, the other end extends towards the direction of the working chassis 60, one end of the fourth guide plate 264 is close to the third guide plate 262, and the other end extends to one end of the casing 20 close to the working chassis 60. In particular, in the present embodiment, the third guide plate 262 is curved and bent toward the working chassis 60, and the fourth guide plate 264 is substantially perpendicular to the working chassis 60, so that the air flow is rapidly and smoothly guided between the working chassis 60 and the cabinet 20, thereby keeping the air outlet of the heat dissipation path 23 away from the operator's grip portion.
The sander 100 is provided with the heat dissipation channel 23 passing through the upper impeller 44 of the fan 40, and the air outlet of the heat dissipation channel 23 is relatively provided with the air inlet of the upper impeller 44 and is closer to the working chassis 60, so that the holding area of the shell 20 of the sander 100 is enlarged, the influence of the heat dissipation caused by shielding the air outlet when an operator holds the shell 20 laterally is avoided, and the influence of the holding comfort and the working stability of the sander 100 caused by the overhigh temperature of the shell 20 is avoided.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A sander, comprising:
the shell is internally provided with a driving motor and an output shaft connected with the driving motor, and the driving motor is used for driving the output shaft to rotate;
the working chassis is arranged at one end of the shell, and the output shaft is connected with the working chassis to drive the working chassis to rotate; a kind of electronic device with high-pressure air-conditioning system
The fan is arranged in the shell and is arranged on the output shaft, the fan comprises a fan main body, and an upper impeller is arranged on one side of the fan main body, which is far away from the working chassis;
the lower impeller is arranged on one side of the fan main body, which is close to the working chassis, and a dust collection channel penetrating through the lower impeller is arranged in the shell;
the air outlet of the dust collection channel is communicated with the dust collection device;
the machine shell is internally provided with a heat dissipation channel passing through the upper impeller, the heat dissipation channel extends towards the direction of the working chassis and comprises an air inlet and an air outlet, the upper impeller is positioned at the air inlet, the air outlet is communicated with the dust collection channel, and the air outlet is closer to the working chassis relative to the upper impeller.
2. The sander as set forth in claim 1, wherein said housing is provided with a first guide plate having one end disposed at a distance from one side of said upper impeller and the other end extending away from the central axis of said fan and gradually approaching said working chassis to form said heat dissipation path.
3. The sander of claim 2, wherein the first guide plate is arcuate and the first guide plate is curved toward the working chassis.
4. A sanding machine according to claim 3 wherein the projected dimension of the first guide plate in the direction of the working chassis is greater than the projected dimension of the upper impeller in the direction of the working chassis, the end of the first guide plate adjacent the working chassis being closer to the working chassis than the upper impeller.
5. The sander according to claim 1, wherein the housing is provided with a second guide plate, one end of the second guide plate is arranged at one side of the upper impeller at intervals, and the other end extends away from the central axis of the fan and gradually approaches the dust collecting channel to form the heat dissipation channel.
6. The sander of claim 5, wherein the second guide plate extends obliquely from an end adjacent the fan toward the dust collection channel.
7. The sander of claim 1, wherein the air outlet of the heat dissipation channel is located between the housing and the working chassis.
8. The sander of claim 7, wherein the housing has a guide structure, one end of the guide structure is spaced apart from one side of the upper impeller, and the other end extends toward the working chassis to an end of the housing adjacent to the working chassis.
9. The sander of claim 8, wherein the guide structure comprises a third guide plate and a fourth guide plate disposed at one end of the third guide plate, one end of the third guide plate is disposed at one side of the upper impeller at intervals, the other end of the third guide plate extends toward the working chassis, one end of the fourth guide plate is close to the third guide plate, and the other end of the fourth guide plate extends to one end of the housing close to the working chassis.
10. The sander of claim 9, wherein the third guide plate is arcuate and extends in a curve toward the working chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559307.4A CN107617958B (en) | 2016-07-15 | 2016-07-15 | Sanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559307.4A CN107617958B (en) | 2016-07-15 | 2016-07-15 | Sanding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107617958A CN107617958A (en) | 2018-01-23 |
| CN107617958B true CN107617958B (en) | 2023-12-08 |
Family
ID=61086811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610559307.4A Active CN107617958B (en) | 2016-07-15 | 2016-07-15 | Sanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107617958B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614563A (en) * | 2018-06-20 | 2019-12-27 | 南京德朔实业有限公司 | Polishing tool |
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| JP2005246531A (en) * | 2004-03-03 | 2005-09-15 | Hitachi Koki Co Ltd | Dust collecting sander |
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| CN205237765U (en) * | 2015-11-05 | 2016-05-18 | 苏州宝时得电动工具有限公司 | Wind -guiding circle and power tool |
| CN205254737U (en) * | 2015-12-18 | 2016-05-25 | 北京海格迪森科技发展有限公司 | Handheld multi -functional integral type grinder |
| CN205928190U (en) * | 2016-07-15 | 2017-02-08 | 苏州宝时得电动工具有限公司 | Sander |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6758731B2 (en) * | 2001-08-10 | 2004-07-06 | One World Technologies Limited | Orbital sander |
| US8800682B2 (en) * | 2010-10-01 | 2014-08-12 | Black & Decker Inc. | Dust extraction for power tools |
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2016
- 2016-07-15 CN CN201610559307.4A patent/CN107617958B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005246531A (en) * | 2004-03-03 | 2005-09-15 | Hitachi Koki Co Ltd | Dust collecting sander |
| CN101134295A (en) * | 2006-08-31 | 2008-03-05 | 株式会社牧田 | Sander |
| CN201030511Y (en) * | 2007-02-16 | 2008-03-05 | 陈美青 | Novel polisher absorbent hood |
| CN101941202A (en) * | 2009-07-06 | 2011-01-12 | 苏州宝时得电动工具有限公司 | Power tool |
| CN102233533A (en) * | 2010-04-21 | 2011-11-09 | 苏州宝时得电动工具有限公司 | Sander |
| CN102601712A (en) * | 2011-01-19 | 2012-07-25 | 日立工机株式会社 | Dust collection adapter and power tool including dust collection adapter |
| CN202292370U (en) * | 2011-10-18 | 2012-07-04 | 中国石油化工股份有限公司 | Hand grinding wheel with extension rod |
| CN105277331A (en) * | 2014-06-03 | 2016-01-27 | 上海汽车集团股份有限公司 | Thermal environment wind tunnel and idling simulation system thereof |
| CN205237765U (en) * | 2015-11-05 | 2016-05-18 | 苏州宝时得电动工具有限公司 | Wind -guiding circle and power tool |
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| CN205928190U (en) * | 2016-07-15 | 2017-02-08 | 苏州宝时得电动工具有限公司 | Sander |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107617958A (en) | 2018-01-23 |
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