CN1100645C - Hand electric tool machine - Google Patents
Hand electric tool machine Download PDFInfo
- Publication number
- CN1100645C CN1100645C CN99118593A CN99118593A CN1100645C CN 1100645 C CN1100645 C CN 1100645C CN 99118593 A CN99118593 A CN 99118593A CN 99118593 A CN99118593 A CN 99118593A CN 1100645 C CN1100645 C CN 1100645C
- Authority
- CN
- China
- Prior art keywords
- choke
- machine tool
- electric hand
- held machine
- shell
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/026—Suppressors associated with brushes, brush holders or their supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/028—Suppressors associated with the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Harvester Elements (AREA)
- Motor Or Generator Current Collectors (AREA)
- Portable Power Tools In General (AREA)
Abstract
An electric motor (11) connectable with the mains has a connecting cable (16) damping the radio interference outputs across cable connection device (26) equipped and connectable especially as a choke, preferably as a ring core choke. A device (22) damping the ratio interference and the cable connection device are insertable in a common, isolated choke housing (30) mountable inside the machine housing (12). The ring shape choke coil with ring core and output wire is carried in a recess.
Description
Technical field
The present invention relates to a kind of electric hand-held machine tool with a casing and the motor of preferably being furnished with brush plate that can be connected with power supply.
Background technology
As everyone knows, the electric hand-held machine tool of configuration motor, its feed cable is connected with the device of the radio interference power that a kind of commutator system of eliminating by motor causes, this device that disturbs choke that also is called for example is designed to coil, and this coil comprises a ferrite iron core straight line or annular.The going of known motor toolroom machine disturbs choke to be placed in the groove of casing, if or be the annular core choke, then be inserted on the single mandrel of casing the inside, wherein the connecting line of choke is quite long, until from link position quite far away.
Because sizable casing error, choke makes in casing and thus electric hand-held machine tool stand to cause the big wearing and tearing that destroy with considerable gap under self vibration with respect to bearing support.
Summary of the invention
Electric hand-held machine tool of the present invention has the electric hand-held machine tool of a casing and a motor that can be connected with power supply, its electrical connection cable is connected with the choke of eliminating radio interference power by cable connecting arrangement, wherein, eliminating the choke of radio interference power and cable connecting arrangement can pack in the common independent choke shell of casing inside.
The advantage of electric hand-held machine tool of the present invention is, choke is installed in oneself the choke shell according to its size design, and this shell sizes is accurate, no gap and be vibration damping.Thereby reduced because undesirable danger of becoming flexible and unclamping that the caused cable from the choke to the cable connecting terminal of the choke quality of free vibration connects.In addition, the cut cable of choke can be fixed in the choke shell, and can shorten size thus.Choke is thus than having the long life-span and having simplified installation up to now.
Because the choke shell integrated with choke can insert in the casing of hand electric tool, so simplified its installation greatly.
Because the choke shell has the cable connecting arrangement of attaching plug shape, so simple especially with being connected of the cable of guiding to motor and power supply.
Because the choke shell is made of plastic, so weight is light especially, and choke is played a part additional electric(al) insulator.
Be designed in the situation of plug at cable connecting arrangement, can carry out simple especially and installation fast, particularly can carry out on the brush plate opposite, the corresponding plug of the most handy choke configuration is carried out.
Because the choke shell is made of plastic, so its available sizable mechanical prestress inserts in the corresponding recesses of casing, and change in location is come to prevent especially reliably in the inside that can be arranged on electric hand-held machine tool thus.
An embodiment below in conjunction with accompanying drawing illustrates the present invention.
Description of drawings
Fig. 1 a has installed the vertical view of half unlimited casing of the electric hand-held machine tool of choke;
The enlarged drawing of Fig. 1 b Fig. 1 a;
The part of amplifying once more of half casing of Fig. 2 Fig. 1;
The end view of Fig. 3 choke shell;
Packed into the lateral side view of choke shell of annular core choke of Fig. 4.
The description of embodiment
Fig. 1 a and 1b represent the vertical view of electric hand-held machine tool 10 inside, and a driven roller 13 that is used for driving the not shown abrasive band that rotatably drives is housed in half casing 14 of its casing 12.Pass a cable 16 in the rear end of casing 12.This cable also can be called the brush plate 18 that supports bridge by one and be electrically connected with motor 11.Brush plate 18 is used for the supporting and the commutation of motor 11, and has the rotational speed regulation wheel 20 of a rotational speed regulation unit that is not shown specifically.Choke 22 is connected on brush plate 18 fronts and can eliminates because the interference that electric current between the commutator that is not shown specifically of the brush of brush plate and motor 11 or electric arc cause.
Choke 22 inserts in the casing grid 24 of half casing 14.Up, choke 22 has the hold-down screw of an attaching plug formula, is used for the connecting line 28 that is electrically connected cable 16 is fixed in the patchhole 40.Choke 22 itself then is positioned at the inside of a choke shell 30, and this shell is equipped with the choke 35 of band shape iron core 34.
Fig. 2 presentation graphs 1 arranges that a section in choke 22 scopes amplifies circle, can know the structure of the attaching plug formula of the choke shell 30 of finding out the shell grid 24 adjacent with revolution regulating wheel 20 and having hold-down screw 26 from figure.
Fig. 3 represents the detail drawing of choke 22, can find out that wherein choke shell 30 is flat cuboids.In addition, also can find out the outlet 38 that choking-winding 34 is drawn and be used for and be electrically connected the patchhole 40 that cable 16 is connected above hold-down screw 26 scopes.
Fig. 4 represents the view of corresponding diagram 3 choke shells 30 flat sides, wherein can know to find out annular core 34 and around the winding wire on it 36.In addition, also can know and find out that loop coil 35 is fixed in the circular groove 32 of choke shell 30, wherein radially block loop coil 34 like this, make it be arranged in groove 32 and do not fall down, particularly make its elasticity chucking fixing wherein to projecting inward alignment pin 44 from circular port 32.
In addition, choke shell 30 has a straight trough 33 of outwards drawing from its circular groove 32, and the lead-out wire 38 elasticity chucking of loop coil 35 is fixed in this groove.
In a unshowned embodiment of the present invention, the choke shell is not with circular groove, but with a sipes of a straight cylinder groove-be actually-, in this groove, adorn a clavate iron core choke, and similar to Fig. 4, make its elasticity chucking fixing by the elastic positioning pin that prevents to come off and drop out.
This new choke is applicable to the whole facility with electric-motor drive, and for example electric hand grinding tool, handsaw, scraper or the like for example also comprise electric kitchen tools.
Claims (10)
1. the electric hand-held machine tool (10) that has a casing (12) and a motor (11) that can be connected with power supply, its electrical connection cable (16) is connected with the choke of eliminating radio interference power by cable connecting arrangement (26), it is characterized by, eliminate the choke (22) of radio interference power and cable connecting arrangement (26) and can pack in the common independent choke shell (30) of casing (12) inside.
2. by the electric hand-held machine tool of claim 1, it is characterized by, choke shell (30) has the toroidal chokes (35) and the lead-out wire (38) thereof of a band shape iron core (34) in a groove (32).
3. by the electric hand-held machine tool of claim 2, it is characterized by, groove (32) tightens with choke (35) shape identically, realizes fixing simultaneously with the torque resistant ways of connecting.
4. by the electric hand-held machine tool of claim 3, it is characterized by, choke (35) but by elasticity prestress radially inwards the alignment pin (44) of projection but elasticity tighten and be fixed in the hole (32).
5. by the electric hand-held machine tool of claim 4, it is characterized by, choke shell (30) is made of plastic, and can insert in the shell grid (24) of half casing (14).
6. by the electric hand-held machine tool of claim 5, it is characterized by, choke shell (30) is having inclined plane (42) on the base of half casing (14).
7. by each electric hand-held machine tool of aforementioned claim, it is characterized by, cable connecting arrangement (26) but be designed to the bar clamp of the attaching plug formula of stube cable.
8. by each electric hand-held machine tool in the claim 1 to 6, it is characterized by, cable connecting arrangement (26) is designed to female type, and lead-out wire (38) then is designed to plug-type.
9. by the electric hand-held machine tool of claim 8, it is characterized by, this plug can be connected with the corresponding plug on being arranged on brush plate (18).
10. by the electric hand-held machine tool of claim 9, it is characterized by, choking-winding (35) is realized being connected with cast or similar approach with choking-winding shell (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29821736U DE29821736U1 (en) | 1998-12-07 | 1998-12-07 | Hand tool |
| DE29821736.8 | 1998-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1256188A CN1256188A (en) | 2000-06-14 |
| CN1100645C true CN1100645C (en) | 2003-02-05 |
Family
ID=8066261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99118593A Expired - Fee Related CN1100645C (en) | 1998-12-07 | 1999-09-13 | Hand electric tool machine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2000176861A (en) |
| CN (1) | CN1100645C (en) |
| DE (1) | DE29821736U1 (en) |
| FR (1) | FR2786723B1 (en) |
| GB (1) | GB2346265B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005007043D1 (en) * | 2004-07-15 | 2009-05-20 | Marquardt Gmbh | ELECTRICAL TOOL, ESPECIALLY BATTERY ELECTRICAL TOOL |
| JP2011016201A (en) * | 2009-07-10 | 2011-01-27 | Makita Corp | Power tool |
| JP5463923B2 (en) * | 2010-01-13 | 2014-04-09 | 日立工機株式会社 | Electric tool |
| DE102011087117B4 (en) * | 2011-11-25 | 2023-07-20 | Hilti Aktiengesellschaft | Electric drive for a hand tool |
| US9837878B2 (en) | 2014-04-16 | 2017-12-05 | Black & Decker Inc. | Electromagnetic interference (EMI) suppression in a power tool |
| JP5950250B2 (en) * | 2015-03-13 | 2016-07-13 | 日立工機株式会社 | Electric tool |
| JP6437370B2 (en) * | 2015-04-01 | 2018-12-12 | 株式会社マキタ | Electric tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263479A (en) * | 1978-12-28 | 1981-04-21 | Western Electric Company, Inc. | Terminated inductive coil assembly |
| GB2271472A (en) * | 1992-05-15 | 1994-04-13 | Kainstar Limited | Filtered electrical plug. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145674A (en) * | 1975-04-30 | 1979-03-20 | King William M | Electromagnetic interference suppression system for electrical equipment |
| US4307365A (en) * | 1978-01-27 | 1981-12-22 | Westinghouse Electric Corp. | Current transformer |
| DE3309108C2 (en) * | 1983-03-15 | 1985-10-03 | Schwabe GmbH & Co KG Elektrotechnische Fabrik, 7068 Urbach | Choke or small transformer |
| DE3413233A1 (en) * | 1984-04-07 | 1985-11-14 | Robert Bosch Gmbh, 7000 Stuttgart | HAND MACHINE TOOL WITH AN ELECTRIC MOTOR |
| DE3606926A1 (en) * | 1986-03-04 | 1987-10-01 | Kress Elektrik Gmbh & Co | ELECTRIC HAND TOOL |
| US4845393A (en) * | 1988-01-20 | 1989-07-04 | Burgess James P | Radio frequency suppression for fuel pump |
| DE4114036A1 (en) * | 1991-03-07 | 1992-09-10 | Taller Gmbh | BRACKET FOR A RING CORE THROTTLE OF AN ELECTRICAL POWER PLUG |
| US5734212A (en) * | 1996-11-12 | 1998-03-31 | Walbro Corporation | Electric fuel pump RFI module with pre-molded housing |
-
1998
- 1998-12-07 DE DE29821736U patent/DE29821736U1/en not_active Expired - Lifetime
-
1999
- 1999-09-13 CN CN99118593A patent/CN1100645C/en not_active Expired - Fee Related
- 1999-12-01 GB GB9928443A patent/GB2346265B/en not_active Expired - Fee Related
- 1999-12-06 FR FR9915323A patent/FR2786723B1/en not_active Expired - Fee Related
- 1999-12-07 JP JP11347456A patent/JP2000176861A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263479A (en) * | 1978-12-28 | 1981-04-21 | Western Electric Company, Inc. | Terminated inductive coil assembly |
| GB2271472A (en) * | 1992-05-15 | 1994-04-13 | Kainstar Limited | Filtered electrical plug. |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2346265A (en) | 2000-08-02 |
| GB2346265B (en) | 2001-06-27 |
| FR2786723A1 (en) | 2000-06-09 |
| CN1256188A (en) | 2000-06-14 |
| DE29821736U1 (en) | 2000-04-13 |
| FR2786723B1 (en) | 2003-10-03 |
| GB9928443D0 (en) | 2000-01-26 |
| JP2000176861A (en) | 2000-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030205 Termination date: 20130913 |