CN201095104Y - Fixed type electric equipment employing novel power source - Google Patents
Fixed type electric equipment employing novel power source Download PDFInfo
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- CN201095104Y CN201095104Y CNU2007201842322U CN200720184232U CN201095104Y CN 201095104 Y CN201095104 Y CN 201095104Y CN U2007201842322 U CNU2007201842322 U CN U2007201842322U CN 200720184232 U CN200720184232 U CN 200720184232U CN 201095104 Y CN201095104 Y CN 201095104Y
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- power source
- electric device
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- servo controller
- fixed electric
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Abstract
The utility model discloses a fixed electric apparatus adopting novel power source, which includes a power source and at least two apparatus bodies. The power source adopts AC Servo controller, and the input end of the power source is supplied power by AC commercial power. The apparatus body adopts permanent magnet brushless dc motor, and the power source is fixedly connected with the apparatus body by wires. The utility model improves the service life of the apparatus, which is energy-saving, safe, and flexible and has no interference to other equipment. The accurate high-speed brake can be realized. The power source is fixedly connected with the apparatus body by wires, so worker just need hold an apparatus body with light weight and small volume for work, which greatly decreases the labor intensity, releases the working tiredness and improves the working efficiency. The utility model overcomes technical prejudice on the art, which adopts a technical scheme of using AC Servo controller to drive a plurality of permanent magnet brushless dc motor. The fixed electric apparatus solves the problem of high cost and results that the application of AC Servo controller in the products becomes possible.
Description
[technical field]
The utility model relates to hand-held type electric tool, mobile type electric tool, garden instrument, wood working tool class electric device and power source thereof, relates in particular to adopt traditional series machine or induction machine as the hand-held type electric tool of power source, mobile type electric tool, garden instrument, wood working tool field.
[background technology]
The work of hand-held type electric tool, mobile type electric tool, garden instrument, wood working tool class electric device 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, and the part garden instrument also adopts induction machine.
There are many unsurmountable defectives in prior art:
1. the commutator of general series machine had only hundreds of individual hour service 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.
Electric device particularly hand held appliance itself both comprised motor, comprise controller again, weight is very heavy, 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 above-mentioned electric device.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of fixed electric device that adopts novel power source, long service life, and product component is changed convenient, the control accuracy 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 fixed electric device that adopts novel power source, comprise power source and at least two apparatus bodies, described power source adopts the AC servo controller, the input of power source is powered by electric main, adopt permanent-magnet brushless DC electric machine on the apparatus body, power source is connected by lead fixed with apparatus body.
As preferably, be fixedly connected with 2 apparatus bodies on the described power source.
As preferably, be fixedly connected with 3 apparatus bodies on the described power source.
As preferably, described AC servo controller comprises control panel and power amplifier board, comprises digital signal processing chip and programmable logic chip on the control panel, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, export to apparatus body (1).
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 is fixing stator, and inner armature is movable rotor, and rotor is a permanent magnet.
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 apparatus body, adopts electronic commutation to replace original mechanical commutator, has improved the service life of utensil 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. the utility model adopts lead fixed to be connected power source and apparatus body, the workman only need hand weight gently, the less apparatus body of volume just can work, and greatly reduces working strength of workers, alleviated work fatigue, 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 great development of electric tool, garden instrument, wood working tool industry, is the revolutionary change to this class industry.
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 the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
[specific embodiment]
Embodiment one:
As shown in Figure 1, adopt the fixed electric device of novel power source, comprise power source 2 and two apparatus bodies 1, described power source 2 adopts the AC servo controller, the input of power source 2 is powered by electric main, adopt permanent-magnet brushless DC electric machine on the apparatus body 1, power source 2 and apparatus body 1 are connected by lead fixed.After the utility model is converted to direct current signal by the AC servo controller with AC signal, drive electric device work, cancelled traditional mechanical commutator, improved the service life of utensil by permanent-magnet brushless DC electric machine.And, adopt lead to connect, alleviated the weight of apparatus body greatly, alleviated workman's work fatigue degree.The voltage swing that induces can be regulated arbitrarily, drops to safe voltage and has improved coefficient safe in utilization; Boosted voltage can reduce the cost of current.
Described AC servo controller comprises control panel and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control panel, 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 is fixing stator, and inner armature is movable rotor, 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.
In the present embodiment, the output of power source 2 and 2 apparatus bodies 1 are connected by lead fixed.
Embodiment two:
As shown in Figure 2, in the present embodiment, the output of described power source 2 is fixedlyed connected with 3 apparatus bodies 1, can provide operation power for 3 apparatus bodies 1 simultaneously.Improved the utilization rate of power source 2.Further reduced cost.
According to actual needs, power source 2 can also be simultaneously provides power for four, five or more a plurality of apparatus body 1.
The utility model is applicable to electric devices such as all kinds of hand-held type electric tools, mobile type electric tool, garden instrument, wood working tool.Wherein, hand-held type electric tool is an exemplary embodiments with the angle grinding machine; Mobile type electric tool is exemplary embodiments with the cutting machine; Garden instrument is exemplary embodiments with the hay mover; Wood working tool is exemplary embodiments with the electric chain saw.
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 domain of the present utility model.
Claims (6)
1. adopt the fixed electric device of novel power source, it is characterized in that: comprise power source (2) and at least two apparatus bodies (1), described power source (2) adopts the AC servo controller, the input of power source (2) is powered by electric main, apparatus body (1) is gone up and is adopted permanent-magnet brushless DC electric machine, and power source (2) is connected by lead fixed with apparatus body (1).
2. the fixed electric device of employing novel power source as claimed in claim 1 is characterized in that: be fixedly connected with 2 apparatus bodies (1) on the described power source (2).
3. the fixed electric device of employing novel power source as claimed in claim 1 is characterized in that: be fixedly connected with 3 apparatus bodies (1) on the described power source (2).
4. the fixed electric device of employing novel power source as claimed in claim 1, it is characterized in that: described AC servo controller comprises control panel and power amplifier board, comprise digital signal processing chip and programmable logic chip on the control panel, in conjunction with digital circuit and software control, produce the high-frequency impulse modulator control signal, after the power amplifier board power amplification, export to apparatus body (1).
5. as the fixed electric device of any one described employing novel power source in the claim 1 to 4, 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.
6. the fixed electric device of employing novel power source as claimed in claim 5 is characterized in that: external armature that described motor body is coaxial and inner armature, and external armature is fixing stator, and inner armature is movable rotor, and rotor is a permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201842322U CN201095104Y (en) | 2007-10-15 | 2007-10-15 | Fixed type electric equipment employing novel power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201842322U CN201095104Y (en) | 2007-10-15 | 2007-10-15 | Fixed type electric equipment employing novel power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095104Y true CN201095104Y (en) | 2008-08-06 |
Family
ID=39922163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201842322U Expired - Fee Related CN201095104Y (en) | 2007-10-15 | 2007-10-15 | Fixed type electric equipment employing novel power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095104Y (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 |
-
2007
- 2007-10-15 CN CNU2007201842322U patent/CN201095104Y/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.: 2009330000626 Denomination of utility model: Fixed type electric equipment employing novel power source Granted publication date: 20080806 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 |
Granted publication date: 20080806 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |