CN101938195B - Mounting structure of fan motor for electronic apparatus - Google Patents
Mounting structure of fan motor for electronic apparatus Download PDFInfo
- Publication number
- CN101938195B CN101938195B CN 201010217593 CN201010217593A CN101938195B CN 101938195 B CN101938195 B CN 101938195B CN 201010217593 CN201010217593 CN 201010217593 CN 201010217593 A CN201010217593 A CN 201010217593A CN 101938195 B CN101938195 B CN 101938195B
- Authority
- CN
- China
- Prior art keywords
- fan motor
- electronic equipment
- electroconductive member
- fan
- fan guard
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 description 36
- 230000014509 gene expression Effects 0.000 description 10
- 239000004411 aluminium Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 150000001398 aluminium Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
Provided is a mounting structure of a fan motor for an electronic apparatus, capable of directly employing the general type fan motor and preventing an electronic circuit of the motor from electrostatic damage by s simple structure. The fan motor arranged in the electronic apparatus is covered by a fan cover (1). The fan cover (1) includes a conductive component (2) for covering an electronic circuit area of the fan motor and a terminal (2a) for connecting a ground wire guided from the conductive component (2). When the fan motor (1) is mounted on the electronic apparatus, the terminal (2a) is connected with a housing of the electronic apparatus. according to one embodiment, the conductive component (2) is composed of a circular metallic plate which diameter is basically equal to that of a rotor of the fan motor, and the terminal (2a) is formed by integratedly guiding out from the metallic plate.
Description
Technical field
The present invention relates to a kind of structure that the cooling fan motor is installed on electronic equipment, it is relevant because of the technology that static is damaged with the electronic circuit that prevents fan motor.
Background technology
In electronic equipments such as hdd recorder and DVD register, for the temperature that suppresses enclosure interior rises, make that the electronic device be installed in the electronic equipment can operate as normal, fan motor is installed, enforceable air cooling is carried out in the inside of electronic equipment by this fan motor.At this moment, for the hand that prevents user in use etc. and blade (impeller) in the rotation come in contact, on the surface of fan motor, fan guard is installed.Because fan guard has been installed, even the user contacts fan motor because of carelessness, its finger can not come in contact with fan motor yet, thereby can guarantee safety.In general, in order to realize lightweight and reduce cost that the fan guard of fan motor is made by insulating material such as plastics usually.In addition, in order to realize the miniaturization of electronic equipment, fan guard be arranged on usually fan motor near.
But, in air dried environment, accumulate static in people's the health easily.When charged user contacted with the fan motor of electronic equipment because of carelessness, static to the electronic circuit partial discharge of fan motor, thereby may cause fan motor to be subjected to electrostatic breakdown from pointing the gap by the fan guard that is made of insulating material.
In order to prevent to be subjected to electrostatic breakdown, disclosed following solution because of above-mentioned static causes fan motor.In patent documentation 1 disclosed technology, by being set, aluminium layer covers electronic device on the circuit substrate that is arranged on fan motor, thus, even around fan motor, there is static, because this static is stopped by aluminium layer, so electronic device can not be damaged because of static.In addition, the structure that in patent documentation 1, has adopted aluminium layer not to be connected with earth connection.In addition, in patent documentation 2 disclosed technology,, cooling fan (fan motor) prevents in the frame shape metalwork that is provided with a plurality of air-vents that electromagnetic wave from leaking from the fan motor mounting portion by being inlaid in.
The patent documentation 1 open patent 2003-88046 of Japan communique
The flat 8-264990 communique of patent documentation 2 Japan's open patents
In patent documentation 1 disclosed technology, by being set, aluminium layer shields static, prevent that thus electronic device is subjected to the infringement of static.At this moment, aluminium layer forms the nameplate shape sealing plate that both sides are provided with insulating barrier, and this aluminium layer sticks on the pedestal of fan motor, but is not connected with earth connection.Therefore, along with static content increases, it is abundant inadequately that shield effectiveness can become, and may cause electronic device to be subjected to the infringement of static.In the structure of patent documentation 1,, then must be connected with the earthing potential of motor by the end that prolongs aluminium lamination if be connected with earth connection.Consequently, need to change the structure of motor self, cause directly to use universal fan motor.
In addition, in patent documentation 2 disclosed technology, owing to adopted the structure that covers whole fan motor with frame shape metalwork, so compare with plastic material etc., except the Master Cost increase and processing cost raising of metalwork, also can cause air quantity to reduce, thereby make cooling performance reduce.At this moment, can increase air quantity, can make the protection effect reduce, and finger enters fan motor inside easily, therefore have problems at secure context but increase air-vent by increasing air-vent.
Summary of the invention
The object of the present invention is to provide a kind of fan motor mounting structure of electronic equipment, it can directly use universal fan motor, and can prevent that the electronic circuit of motor is subjected to electrostatic breakdown with simple structure.
The present invention relates to a kind of fan motor mounting structure of electronic equipment, this fan motor mounting structure is used for that on electronic equipment the cooling fan motor is installed and covers the fan guard that is made of insulating material of this fan motor, and wherein said fan motor has: make the blade rotor rotated; Stator, this stator is positioned at the inboard of this rotor, is wound with winding on it; And electronic circuit, this electronic circuit is powered to described winding, and to drive the rotation of described rotor, described fan guard has: joint-cutting, this joint-cutting allow the wind from described fan motor pass through; Electroconductive member, this electroconductive member cover the described electronic circuit zone of described fan motor; And the earth connection terminal for connecting of drawing from this electroconductive member, when being installed in described fan motor and described fan guard on the described electronic equipment, described earth connection terminal for connecting is connected with the conductivity housing of described electronic equipment.
Wherein, described electroconductive member is made of the diameter circular metal plate about equally of the described rotor of diameter and described fan motor, and described earth connection terminal for connecting forms by drawing integratedly from described metallic plate.
The invention effect
According to the present invention, a kind of fan motor mounting structure of electronic equipment can be provided, this mounting structure can be installed in universal fan motor on the electronic equipment, and can with simple structure and cheaply fan guard prevent that the electronic circuit of motor is subjected to electrostatic breakdown.
Description of drawings
Fig. 1 is the overall structure figure of the 1st embodiment of the fan motor mounting structure of expression electronic equipment involved in the present invention.
Fig. 2 is the structure chart of an example of the fan guard among expression the 1st embodiment.
Fig. 3 is the longitdinal cross-section diagram of the installment state of expression fan motor and fan guard.
Fig. 4 is the enlarged drawing of middle body of the sectional view of Fig. 3.
Fig. 5 is the structure chart of an example of the fan guard among expression the 2nd embodiment.
Symbol description
1,1 ', 103 fan guards
2,2 ' electroconductive member
2a, 2d earth connection splicing ear
3a, 3b claw
4a, 4b, 4c, 4d screwed hole
5,5a, 5b, 5c joint-cutting
6 pressing parts
7 juts
10,102 fan motors
11 blades (impeller)
12 rotors
13
14 casings
15 stators
16 electronic circuits
17 gaps
20,21 discharge paths
101 electronic equipments
104 bolts
105 back panel
Embodiment
Followingly embodiments of the present invention are elaborated with reference to accompanying drawing.
[embodiment 1]
Fig. 1 is the overall structure figure of the 1st embodiment of the fan motor mounting structure of expression electronic equipment involved in the present invention.Wherein, electronic equipment 101 is electronic equipments such as hdd recorder and DVD register, is assembled with fan motor 102 on its housing (is back panel 105 at this), is used to cool off the heat that produces in equipment.Use universal DC CD-ROM drive motor etc. as fan motor 102, the surface of motor is covered by fan guard 103, and is mounted and fixed on by bolt 104 on the conductivity housing of equipment.The inboard of the fan guard 103 of Shi Yonging is provided with the electroconductive member that antistatic described later is used in the present embodiment.
Fig. 2 is the structure chart of an example of the fan guard among expression the 1st embodiment.
Fan guard 1 (103) is made of low-cost insulating material such as plastics, has: be used for the claw 3a, the 3b that position on the housing (back panel 105) at electronic equipment 101; Screwed hole 4a, the 4b, 4c, the 4d that use by on the housing that is bolted to electronic equipment 101 time; The joint-cutting 5 that the cooling air that allows fan motor 102 produce passes through; And earth connection connects the pressing part 6 of usefulness.And, the electroconductive member 2 that antistatic is used is installed at the middle body of the inboard of fan guard 1.Thus, when the outside of fan guard 1 enters,, can protect the electronic circuit of fan motor 102 at static by forcibly making this static in electroconductive member 2 discharges.
Embed in the fixing hole 2c that is arranged on the electroconductive member 2 by the microspike 7 that will be arranged on fan guard 1 side, electroconductive member 2 can be fixed on the fan guard 1.And when the fan guard 1 that electroconductive member 2 will be installed was fixed on the electronic equipment 101, the pressing part 6 of fan guard 1 made the earth connection splicing ear 2a of electroconductive member 2 contact with the back panel 105 of electronic equipment 101.Thus,, can make the flow of charge housing that is accumulated in the electroconductive member 2 by discharge by making the conductivity housing conducting of electroconductive member 2 and electronic equipment 101, so, even there is a large amount of static to enter, also can obtain anti-static effect effectively.
Fig. 3 is the longitdinal cross-section diagram of the installment state of expression fan motor and fan guard.Fan motor 10 (102) and fan guard 1 (103) are installed on the back panel 105 as the housing of electronic equipment.
Have the blade (impeller) 11 that produces wind, make blade 11 rotations and the rotor 12 that constitutes by magnet and as the rotating part of fan motor 10 (102) as the axle 13 of the rotating shaft of rotor 12.And, as the standing part of fan motor 10 (102) have the supports fan motor casing 14, be wound with to rotor 12 apply the winding of power and the stator 15 that surrounds by megohmite insulant and to the winding power supply of stator 15 to drive the electronic circuit 16 of rotor 12 rotations.At this moment, the boundary section at rotor 12 and stator 15 has the gap 17 that certainly exists.
Fan guard 1 is made of joint-cutting 5 that allows the wind of fan motor pass through and the electroconductive member 2 that is installed in inboard middle body.Wherein, electroconductive member 2 is configured to cover electronic circuit 16 zones that are built in fan motor 10.And the not shown earth connection splicing ear 2a of electroconductive member 2 is connected on the back panel 105 of electronic equipment.
Below the principle destroyed of the antistatic of fan motor that the fan guard by present embodiment is obtained describe.
Fig. 4 is the enlarged drawing of middle body of the sectional view of Fig. 3.In Fig. 4, the joint-cutting 5 of fan guard 1 is provided with 3 row altogether, and this 3 row joint-cutting 5 is circle-shaped setting, begins from the inboard to represent with symbol 5a, 5b, 5c successively.Static enters fan motor from the outside of fan guard 1 by joint- cutting 5a, 5b, 5c and discharges.
At first the discharge path that the existing structure of electroconductive member 2 is not installed on the fan guard 1 is described.The discharge path of existing structure is by dotted arrow 20 expressions.For example, after static enters from joint-cutting 5a, constitute by insulating material owing to be positioned at the fan guard 1 of proximal most position, so static can directly not discharge at fan guard.From the joint-cutting 5a second near locational member is casing 14, owing to this casing 14 is also made by insulating material, so static can be directly in casing 14 discharges.From joint-cutting 5a the 3rd near be formed in gap 17 between rotor 12 and the stator 15.Electronic circuit 16 is in exposed state with respect to this gap 17, discharges so static passes the 17 pairs of electronic circuits 16 in gap.The situation of static when joint-cutting 5b enters with joint-cutting 5c and the static situation when joint-cutting 5a enters is identical, though different from the distance of fan motor central part, static is finally in electronic circuit 16 discharges of fan motor.This discharge makes electronic circuit 16 damage, thereby causes fan motor to work.
Below electroconductive member 2 is installed in the present embodiment on the fan guard 1 discharge path describe.Discharge path in the present embodiment is by solid arrow 21 expressions.After static enters from joint-cutting 5a, the electroconductive member 2 that is arranged on the proximal most position place is discharged, so static can not discharge to the electronic circuit in the motor 16.When the in-position of static was joint-cutting 5b and joint-cutting 5c, static discharged to electroconductive member 2 equally.At this moment, the discharge object is by deciding from the distance relation between observed electroconductive member 2 in the in-position of static and the electronic circuit 16, but because the discharge object of electronic circuit 16 is actually the metal part (for example pin) on the substrate, so and the distance between the static in-position more farther than the distance between static in-position and the electroconductive member 2.In addition, owing to flow into housing by earth connection splicing ear 2a at the electric charge of electroconductive member 2 discharges, so can prevent effectively that static from discharging to fan motor.It more than is the principle that the antistatic of the fan motor of present embodiment destroys.
In above-mentioned present embodiment, the static that enters fan guard flows into the back panel of electronic equipment in back that the electroconductive member that is installed in the fan guard middle body is discharged, so can prevent effectively that the electronic circuit of fan motor is subjected to electrostatic breakdown.Consequently, can prevent because of fan motor damages the situation generation that causes electronic equipment internal temperature anomaly to rise, thereby can improve the reliability of electronic equipment.In the present embodiment, owing to can directly use universal fan motor, so practicality is very high.
In addition, the variation as present embodiment can also adopt following form.Promptly, in said structure, the ground connection splicing ear 2a of electroconductive member 2 is configured to contact with the housing of electronic equipment, as long as can be with the static that flows into from the distance of earth connection splicing ear 2a, then also can adopt ground connection splicing ear 2a not contact and be arranged near the housing structure with housing to the housing discharge of electronic equipment but be positioned at.In addition, in said structure, electroconductive member 2 is installed in the middle body of the inboard of fan guard 1, but also electroconductive member 2 can be installed in the middle body in the outside of fan guard 1.
[embodiment 2]
Below the 2nd embodiment of the mounting structure of the fan motor of electronic equipment involved in the present invention is described.Because the overall structure figure of electronic equipment is identical with described embodiment 1 (Fig. 1), so omit its explanation.
Fig. 5 is the structure chart of an example of the fan guard among expression the 2nd embodiment.
Fan guard 1 ' is made of insulating material such as plastics, identical with embodiment 1 (Fig. 2), the joint-cutting 5 that screwed hole 4a, 4b, 4c, 4d that has the claw 3a, the 3b that are used for positioning on the housing of electronic equipment 101, use by time on the housing that is bolted to electronic equipment 101 and the cooling air that allows fan motor 102 produce pass through, and the electroconductive member 2 ' that antistatic is used is installed at the middle body of the inboard of fan guard 1 '.In addition, in the present embodiment, do not need to be provided with the pressing part 6 of the earth connection connection usefulness among Fig. 2.
Electroconductive member 2 ' is processed as roughly rounded formation by the forming sheet metal with stainless steel etc., and the shape of circular portion is identical with Fig. 2.In the present embodiment, earth connection splicing ear 2d draws integratedly from the part of electroconductive member 2 '.And be arranged on the position consistency of 1 screwed hole (for example 4d) in the screwed hole of the position in the hole on this earth connection splicing ear 2d and fan guard 1 '.Electroconductive member 2 ' is fixed on the fan guard 1 ', the fan guard 1 ' that electroconductive member 2 ' is installed by bolt when being installed on the electronic equipment 101, carry out conducting by bolt 104 between the housing of electroconductive member 2 ' and electronic equipment 101.
According to present embodiment, the static that flows into from the joint-cutting 5 of fan guard 1 ' discharges to electroconductive member 2 ', because discharge, the electric charge that is accumulated in the electroconductive member 2 ' flows to housing by earth connection splicing ear 2d.Thus, can prevent that static from discharging to the electronic circuit of fan motor, thereby can prevent that fan motor is subjected to electrostatic breakdown.
In the present embodiment, used the screwed hole 4a～4d of fan guard 1 ' in order to connect earth connection, so pressing part 6 as shown in Figure 2 need be set in fan guard 1 '.Therefore, can use universal fan guard, owing to can use universal fan guard, so practicality further is improved.In addition, the earth connection splicing ear 2d of electroconductive member 2 ' can roughly be formed on same and on, so do not need to carry out bending machining, thereby make processing become more easy.
In addition, the variation as present embodiment can also adopt following form.Promptly, in said structure, the ground connection splicing ear 2d of electroconductive member 2 ' is by the housing conducting of bolt and electronic equipment, as long as can be with the static that flows into from the distance of earth connection splicing ear 2d, then also can adopt ground connection splicing ear 2d not contact and be arranged near the bolt structure with bolt to bolt (the perhaps housing of electronic equipment) discharge but be positioned at.In addition, in said structure, electroconductive member 2 ' is installed in the middle body of the inboard of fan guard 1 ', but also can be arranged on the middle body in the outside of fan guard 1 '.
Claims (4)
1. the fan motor mounting structure of an electronic equipment, the fan guard that is made of insulating material that is used for that the fan motor of cooling usefulness is installed and covers this fan motor on electronic equipment is characterized in that,
Described fan motor has:
Make the blade rotor rotated;
Stator, this stator is positioned at the inboard of this rotor, is wound with winding on it; And
Electronic circuit, this electronic circuit is powered to described winding, rotates to drive described rotor,
Described fan guard has:
Joint-cutting, this joint-cutting allow the wind from described fan motor pass through;
Electroconductive member, this electroconductive member cover the described electronic circuit zone of described fan motor; And
The earth connection terminal for connecting of drawing from this electroconductive member,
On described electroconductive member, be provided with fixing hole, embed in the described fixing hole by the projection that will be arranged on described fan guard side, thereby described electroconductive member is fixed in the mode near described joint-cutting, and, when being installed in described fan motor and described fan guard on the described electronic equipment, described earth connection terminal for connecting is connected with the conductivity housing of described electronic equipment
Described electroconductive member is made of the diameter circular metal plate about equally of the described rotor of diameter and described fan motor,
Described earth connection terminal for connecting forms by drawing integratedly from described metallic plate.
2. the fan motor mounting structure of electronic equipment as claimed in claim 1 is characterized in that,
Described earth connection terminal for connecting contacts with the conductivity housing of described electronic equipment by the pressing part that is arranged on the described fan guard.
3. the fan motor mounting structure of electronic equipment as claimed in claim 1 is characterized in that,
Described earth connection terminal for connecting screws togather and is fixed on the described fan guard with being arranged on screwed hole on the described fan guard by making bolt, and forms conducting with the conductivity housing of described electronic equipment.
4. the fan motor mounting structure of an electronic equipment, the fan guard that is made of insulating material that is used for that the fan motor of cooling usefulness is installed and covers this fan motor on electronic equipment is characterized in that,
Described fan motor has:
Make the blade rotor rotated;
Stator, this stator is positioned at the inboard of this rotor, is wound with winding on it; And
Electronic circuit, this electronic circuit is powered to described winding, rotates to drive described rotor,
Described fan guard has:
Joint-cutting, this joint-cutting allow the wind from described fan motor pass through;
Electroconductive member, this electroconductive member cover the described electronic circuit zone of described fan motor; And
The earth connection terminal for connecting of drawing from this electroconductive member,
On described electroconductive member, be provided with fixing hole, embed in the described fixing hole by the projection that will be arranged on described fan guard side, thereby described electroconductive member is fixed in the mode near described joint-cutting, and, when being installed in described fan motor and described fan guard on the described electronic equipment, described earth connection terminal for connecting be arranged on described electronic equipment the conductivity housing near, being positioned at can be to the distance of the conductivity housing of described electronic equipment discharge
Described electroconductive member is made of the diameter circular metal plate about equally of the described rotor of diameter and described fan motor,
Described earth connection terminal for connecting forms by drawing integratedly from described metallic plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-150896 | 2009-06-25 | ||
| JP2009150896A JP5325030B2 (en) | 2009-06-25 | 2009-06-25 | Fan motor mounting structure for electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101938195A CN101938195A (en) | 2011-01-05 |
| CN101938195B true CN101938195B (en) | 2013-07-24 |
Family
ID=43391371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010217593 Expired - Fee Related CN101938195B (en) | 2009-06-25 | 2010-06-23 | Mounting structure of fan motor for electronic apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5325030B2 (en) |
| CN (1) | CN101938195B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107431311A (en) * | 2015-03-30 | 2017-12-01 | 罗伯特·博世有限公司 | Electronic equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874686B (en) * | 2014-01-03 | 2018-11-16 | 卡特燃料系统有限公司 | The earthing or grounding means of brushless motor |
| KR102123052B1 (en) * | 2014-06-23 | 2020-06-15 | (주)테크윙 | Test handler |
| CN106102367B (en) * | 2016-06-20 | 2022-02-25 | 歌尔股份有限公司 | Anti-static module shell and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919693A (en) * | 1989-03-29 | 1990-04-24 | Olney Richard A | Electrostatic air cleaner |
| JP2003088046A (en) * | 2001-09-06 | 2003-03-20 | Nippon Densan Corp | Fan motor |
| CN201115231Y (en) * | 2007-06-14 | 2008-09-10 | 建凖电机工业股份有限公司 | Heat radiation structure for fan motor |
| JP2009069319A (en) * | 2007-09-12 | 2009-04-02 | Kyocera Mita Corp | Image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0617039Y2 (en) * | 1987-07-01 | 1994-05-02 | 株式会社丸山製作所 | Fan case of blower |
| JPH0442795U (en) * | 1990-08-10 | 1992-04-10 | ||
| JP3629299B2 (en) * | 1995-06-06 | 2005-03-16 | オリエンタルモーター株式会社 | Magnetic shielding device for axial fan motor |
| JPH10145079A (en) * | 1996-11-12 | 1998-05-29 | Sony Corp | Shielding structure for unwanted electromagnetic radiation wave of electronic device housing |
| JP2003111341A (en) * | 2001-09-28 | 2003-04-11 | Sanyo Denki Co Ltd | Electromagnetic noiseproof structure for fan, and electromagnetic noise absorbing structure unit |
| JP4896359B2 (en) * | 2003-01-28 | 2012-03-14 | 富士通株式会社 | Electronic equipment |
| JP4869152B2 (en) * | 2007-05-28 | 2012-02-08 | シャープ株式会社 | Blower and projection display device |
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2009
- 2009-06-25 JP JP2009150896A patent/JP5325030B2/en not_active Expired - Fee Related
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2010
- 2010-06-23 CN CN 201010217593 patent/CN101938195B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919693A (en) * | 1989-03-29 | 1990-04-24 | Olney Richard A | Electrostatic air cleaner |
| JP2003088046A (en) * | 2001-09-06 | 2003-03-20 | Nippon Densan Corp | Fan motor |
| CN201115231Y (en) * | 2007-06-14 | 2008-09-10 | 建凖电机工业股份有限公司 | Heat radiation structure for fan motor |
| JP2009069319A (en) * | 2007-09-12 | 2009-04-02 | Kyocera Mita Corp | Image forming apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107431311A (en) * | 2015-03-30 | 2017-12-01 | 罗伯特·博世有限公司 | Electronic equipment |
| CN107431311B (en) * | 2015-03-30 | 2019-10-22 | 罗伯特·博世有限公司 | Electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011010437A (en) | 2011-01-13 |
| JP5325030B2 (en) | 2013-10-23 |
| CN101938195A (en) | 2011-01-05 |
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