CN201163756Y - Power source and hand-hold electric tool adopting the same - Google Patents
Power source and hand-hold electric tool adopting the same Download PDFInfo
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- CN201163756Y CN201163756Y CNU2008200833443U CN200820083344U CN201163756Y CN 201163756 Y CN201163756 Y CN 201163756Y CN U2008200833443 U CNU2008200833443 U CN U2008200833443U CN 200820083344 U CN200820083344 U CN 200820083344U CN 201163756 Y CN201163756 Y CN 201163756Y
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- electric tool
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Abstract
The utility model discloses a hand-held electric tool adopting a novel power source. The hand-held electric tool comprises a split-type power source and at least two tool bodies, wherein the power source has at least two output ports; the tool bodies can be inserted into the output ports; the power source adopts an AC servo controller; an input end of the power source is powered by AC commercial power; and the tool bodies adopt a permanent magnetic brushless DC machine. The hand-held electric tool has prolonged service life, energy conservation, safety and flexibility, and does not generate interference on other equipment during operation; meanwhile, the electric tool can realize accurate high-speed braking. A worker can work just through holding the tool bodies with lighter weight and smaller volume, thereby greatly reducing labor intensity, releasing fatigue and increasing work efficiency. The hand-held electric tool overcomes the technical bias in the field, and adopts the technical proposal according to which the AC servo controller is used to drive a plurality of permanent magnetic brushless DC machines, thereby solving the problem of high cost and making it possible to apply the AC servo controller to similar products.
Description
[technical field]
The utility model relates to hand-held type electric tool and power source thereof.
[background technology]
The work of hand-held type electric tool all is to adopt motor that electric energy is converted into mechanical energy, makes related tool rotation or mobile, finishes related work.This series products all is to adopt series machine at present.
There are many unsurmountable defectives in prior art:
1. the commutator of general series machine had only hundreds of individual hour useful life, and the life-span of commutator and carbon brush is directly restricting the life-span of entire product; Can produce electromagnetic interference electrical network or other wireless device during commutator work; Series machine is not accomplished accurate two closed-loop control; Because speed-regulating function is controlled voltage with the silicon controlled angle of flow, so torque ratio is less during series machine low speed; Series machine can not be realized accurately brake at a high speed.
2. hand-held type electric tool itself had both comprised motor, comprised controller again, and weight is very heavy, and volume is big, has increased workman's operation intensity, easily causes work fatigue, influences operating efficiency.
3. though the applicant also expects adopting the AC servo controller to add the structure of permanent-magnet brushless DC electric machine, but Zheng Ti cost is higher like this, if an AC servo controller drives a permanent-magnet brushless DC electric machine, be 200 yuan of calculating with both costs, the cost of its single product just needs 400 yuan, increased product cost greatly, and low more its cost increase of product of body cost is obvious more.Therefore, those skilled in the art also the same with the applicant think always can't implement this technology on the hand-held type electric tool.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, propose a kind of power source and adopt the hand-held type electric tool of this power source, use the hand-held type electric tool long service life of this power source, the control precision height, response can realize brake at a high speed at a high speed.
For achieving the above object, the utility model proposes a kind of hand-held type electric tool that adopts novel power source, power source and at least two tool bodies of comprising split, have at least two output ports on the power source, tool body is connected on the output port, described power source adopts the AC servo controller, and the input of power source is powered by electric main, adopts permanent-magnet brushless DC electric machine on the tool body.
As preferably, have 4 output ports on the power source, can connect a tool body on each output port.
As preferably, have 5 output ports on the power source, can connect a tool body on each output port.
As preferably, have 6 output ports on the power source, can connect a tool body on each output port.
As preferably, described AC servo controller comprises control board and power amplifier board, comprises digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port.
As preferably, described permanent-magnet brushless DC electric machine comprises electronic switching circuit, rotor position detection circuit and motor body, and described electronic switching circuit, motor body, rotor position detection circuit constitute the closed-loop path successively.
As preferably, external armature that described motor body is coaxial and inner armature, external armature are stator or rotor, and inner armature is corresponding rotor or stator, and rotor is a permanent magnet.
For achieving the above object, the utility model has also proposed a kind of power source, has at least two output ports on the power source, but fastening means body on the output port, described power source adopts the AC servo controller, and the input of power source is powered by electric main.
As preferably, have 4 or 5 or 6 output ports on the power source, can connect a tool body on each output port.
As preferably, described AC servo controller comprises control board and power amplifier board, comprises digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port.
The beneficial effects of the utility model: 1. the utility model adopts the AC servo controller as power source, adopts permanent-magnet brushless DC electric machine on the tool body, adopts electronic commutation to replace original mechanical commutator, has improved the useful life of instrument greatly.Adopt accurate two closed-loop control, more energy-conservation than series machine, safer, more flexible, noiseless in the course of work to other equipment.Can realize accurately brake at a high speed.2. after the utility model separated power source and tool body, the workman only need hand that weight is light, the less tool body of volume just can be worked, and greatly reduces working strength of workers, has alleviated work fatigue, has improved operating efficiency.Adopt plug-in type can realize longer-distance operation, made things convenient for use.3. the utility model has overcome the technology prejudice of this area, the AC servo controller is combined application with permanent-magnet brushless DC electric machine, adopt an AC servo controller to drive the technical scheme of a plurality of permanent-magnet brushless DC electric machines, solved the high problem of cost, the AC servo controller is applied on this series products becomes possibility.Having expanded its range of application greatly, promoted the development of hand-held type electric tool industry, is the revolutionary change to the sector.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
[embodiment]
Embodiment one:
As shown in Figure 1, adopt the angle grinding machine of novel power source, comprise the power source 2 of split and the tool body 1 of at least two angle grinding machines, have at least two output ports 21 on the power source 2, but tool body 1 socket connection is to output port 21, described power source 2 adopts the AC servo controller, and the input of power source 2 is powered by electric main, adopts permanent-magnet brushless DC electric machine on the tool body 1.Have 4 or 5 or 6 output ports 21 on the power source 2, can connect a tool body 1 on each output port 21.
Described AC servo controller comprises control board and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port 21.This AC servo controller can adopt disclosed servo-driver in the CN1549441A patent.
Described permanent-magnet brushless DC electric machine comprises electronic switching circuit, rotor position detection circuit and motor body, and described electronic switching circuit, motor body, rotor position detection circuit constitute the closed-loop path successively.External armature that described motor body is coaxial and inner armature, external armature are stator or rotor, and inner armature is corresponding rotor or stator, and rotor is a permanent magnet.It is the power-up sequence and the time of each phase winding of control motor body stator that electronic switching circuit mainly acts on, and mainly is made of power tube, drive circuit and rotor-position signal processing module.It is real-time detection rotor position that rotor position detection circuit mainly acts on, for commutation provides foundation.
Embodiment two:
Adopt the electric hand drill of novel power source, comprise the power source 2 of split and the tool body 1 of at least two electric hand drills, have at least two output ports 21 on the power source 2, but tool body 1 socket connection is to output port 21, described power source 2 adopts the AC servo controller, the input of power source 2 is powered by electric main, adopts permanent-magnet brushless DC electric machine on the tool body 1.Have 4 or 5 or 6 output ports 21 on the power source 2, can connect a tool body 1 on each output port 21.
Described AC servo controller comprises control board and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port 21.This AC servo controller can adopt disclosed servo-driver in the CN1549441A patent.
Described permanent-magnet brushless DC electric machine comprises electronic switching circuit, rotor position detection circuit and motor body, and described electronic switching circuit, motor body, rotor position detection circuit constitute the closed-loop path successively.External armature that described motor body is coaxial and inner armature, external armature are stator or rotor, and inner armature is corresponding rotor or stator, and rotor is a permanent magnet.It is the power-up sequence and the time of each phase winding of control motor body stator that electronic switching circuit mainly acts on, and mainly is made of power tube, drive circuit and rotor-position signal processing module.It is real-time detection rotor position that rotor position detection circuit mainly acts on, for commutation provides foundation.
Embodiment three:
Adopt the electric nibbler of novel power source, comprise the power source 2 of split and the tool body 1 of at least two electric nibbler, have at least two output ports 21 on the power source 2, but tool body 1 socket connection is to output port 21, described power source 2 adopts the AC servo controller, the input of power source 2 is powered by electric main, adopts permanent-magnet brushless DC electric machine on the tool body 1.Have 4 or 5 or 6 output ports 21 on the power source 2, can connect a tool body 1 on each output port 21.
Described AC servo controller comprises control board and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port 21.This AC servo controller can adopt disclosed servo-driver in the CN1549441A patent.
Described permanent-magnet brushless DC electric machine comprises electronic switching circuit, rotor position detection circuit and motor body, and described electronic switching circuit, motor body, rotor position detection circuit constitute the closed-loop path successively.External armature that described motor body is coaxial and inner armature, external armature are stator or rotor, and inner armature is corresponding rotor or stator, and rotor is a permanent magnet.It is the power-up sequence and the time of each phase winding of control motor body stator that electronic switching circuit mainly acts on, and mainly is made of power tube, drive circuit and rotor-position signal processing module.It is real-time detection rotor position that rotor position detection circuit mainly acts on, for commutation provides foundation.
The utility model can be widely used in hand-held type electric tools such as percussion drill, angular bit, electric hammer, hand-held abrasive machine, polishing machine, engraving machine, sweep-saw, electric circular saw, wall-slotting machine, heat gun, colloidal sol rifle, the relevance of granting the structure of instrument itself and principle in fact is little, highly versatile.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any scheme after the utility model simple transformation is all belonged to protection range of the present utility model.
Claims (10)
1. adopt the hand-held type electric tool of novel power source, it is characterized in that: the power source (2) and at least two tool bodies (1) that comprise split, have at least two output ports (21) on the power source (2), tool body (1) is connected on the output port (21), described power source (2) adopts the AC servo controller, the input of power source (2) is powered by electric main, and tool body (1) is gone up and adopted permanent-magnet brushless DC electric machine.
2. the hand-held type electric tool of employing novel power source as claimed in claim 1 is characterized in that: have 4 output ports (21) on the power source (2), can connect a tool body (1) on each output port (21).
3. the hand-held type electric tool of employing novel power source as claimed in claim 1 is characterized in that: have 5 output ports (21) on the power source (2), can connect a tool body (1) on each output port (21).
4. the hand-held type electric tool of employing novel power source as claimed in claim 1 is characterized in that: have 6 output ports (21) on the power source (2), can connect a tool body (1) on each output port (21).
5. the hand-held type electric tool of employing novel power source as claimed in claim 1, it is characterized in that: described AC servo controller comprises control board and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port (21).
6. as the hand-held type electric tool of any one described employing novel power source in the claim 1 to 5, it is characterized in that: described permanent-magnet brushless DC electric machine comprises electronic switching circuit, rotor position detection circuit and motor body, and described electronic switching circuit, motor body, rotor position detection circuit constitute the closed-loop path successively.
7. the hand-held type electric tool of employing novel power source as claimed in claim 6, it is characterized in that: external armature that described motor body is coaxial and inner armature, external armature is stator or rotor, and inner armature is corresponding rotor or stator, and rotor is a permanent magnet.
8. hand the power source of type electric tool, it is characterized in that: have at least two output ports (21) on the power source, output port (21) but go up fastening means body (1), described power source adopts the AC servo controller, the input of power source is powered by electric main.
9. the power source of hand-held type electric tool as claimed in claim 8 is characterized in that: have 4 or 5 or 6 output ports (21) on the power source (2), can connect a tool body (1) on each output port (21).
10. the power source of hand-held type electric tool as claimed in claim 8, it is characterized in that: described AC servo controller comprises control board and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control board, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, output to each output port (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200833443U CN201163756Y (en) | 2008-02-03 | 2008-02-03 | Power source and hand-hold electric tool adopting the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200833443U CN201163756Y (en) | 2008-02-03 | 2008-02-03 | Power source and hand-hold electric tool adopting the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163756Y true CN201163756Y (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200833443U Expired - Fee Related CN201163756Y (en) | 2008-02-03 | 2008-02-03 | Power source and hand-hold electric tool adopting the same |
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| Country | Link |
|---|---|
| CN (1) | CN201163756Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249344A (en) * | 2013-06-28 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Alternating-current electric tool |
-
2008
- 2008-02-03 CN CNU2008200833443U patent/CN201163756Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249344A (en) * | 2013-06-28 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Alternating-current electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiahe Tools Co., Ltd. Assignor: Jiang Weiliang|Wu Shiqing Contract fulfillment period: 2009.2.13 to 2014.2.28 Contract record no.: 2009330000630 Denomination of utility model: Power source and hand-hold electric tool adopting the same Granted publication date: 20081210 License type: Exclusive license Record date: 20090413 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.13 TO 2014.2.28; CHANGE OF CONTRACT Name of requester: JIAHE TOOLS CO., LTD. Effective date: 20090413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20160203 |