CN103746615B - Pruner brake circuit - Google Patents
Pruner brake circuit Download PDFInfo
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- CN103746615B CN103746615B CN201310725868.3A CN201310725868A CN103746615B CN 103746615 B CN103746615 B CN 103746615B CN 201310725868 A CN201310725868 A CN 201310725868A CN 103746615 B CN103746615 B CN 103746615B
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- pruner
- closed contact
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 230000021615 conjugation Effects 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008450 motivation Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
The invention discloses a kind of Pruner brake circuit, in microswitch, the common 1 of K1 is connected with the normally opened contact 3 of microswitch K3；The normally-closed contact 2 of microswitch K1 is connected with the normally opened contact 3 of microswitch K2 and the normally-closed contact 2 of microswitch K1 is also connected with one of them carbon brush in the normally-closed contact 2 of microswitch K3 and two carbon brush；The normally opened contact 3 of microswitch K1 is connected with a supply lines of alternating current；The common 1 of microswitch K2 is connected with the normally opened contact 3 of microswitch K4；The normally-closed contact 2 of microswitch K2 is connected with the another one carbon brush in another supply lines of alternating current, the normally-closed contact 2 of microswitch K4 and two carbon brush；The movable contact 1 of microswitch K3 is connected with one end of stator coil L1, and the other end of stator coil L1 is connected with the common 1 of microswitch K4.Foregoing circuit is capable of double-button control without installing double-button link gear.
Description
Technical field
The present invention relates to a kind of pruner that branch, shrub etc. are pruned, be especially a kind of Pruner brake circuit.
Background technology
The Pruner brake circuit of prior art as it is shown in figure 1, it is made up of two microswitch, electric capacity and motor, motor
It is made up of stator coil and rotor, two of which microswitch one double-point double-throw switch of composition, is i.e. equivalent to two fine motions and opens
The linkage during button closed.In order to meet safety criterion IEC60745-2-15, EN60745-2-15 and GB3883.15 want
Ask, it is necessary to press main button simultaneously and secondary button could start pruner.Two microswitch are by a switching device simultaneously
Operation, when i.e. pressing or unclamp, two microswitch actions all simultaneously.Main button, secondary button are all by a switch gearing
Mechanism couples with switch jacking block mechanism.Time so to ensure that main button or secondary button are individually pressed, switch linkage mechanism all will not
Drive switch jacking block mechanism opening switch, and when must press main button and secondary button, the motion row of switch linkage mechanism. simultaneously
Cheng Caineng drives switch jacking block mechanism opening switch, and then to control the operation of a machine.Meet safety criterion on the market at present
The pruner that IEC60745-2-15, EN60745-2-15 and GB3883.15 require all uses this structure.Said structure
Pruner brake circuit has the disadvantage that owing to main button and secondary button need to use machinery connection in actual production process
Motivation structure through kinematic pair athleticism control microswitch break-make, the most not only need to mechanical linkage which controls with install and
Space, increases the volume of pruner, the most again due to problems such as the precision of mechanical linkage which controls size and stability,
Cause some machine to produce two buttons to press simultaneously and also do not open switch or any one press button that comes loose can not disconnect
Problem, on the rotatable pruner of handle designed especially for adapting to ergonomics, the link gear of double-button is more
Complexity, the problem hidden is the most more.Therefore this structure not only reduces functional reliability and the safety of pruner, Er Qiezeng
Add the cost of pruner.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the defect of above prior art, it is provided that a kind of without installing double-button connection
Motivation structure but be capable of double-button control Pruner brake circuit.
The technical scheme is that, it is provided that a kind of Pruner brake circuit, including first group of microswitch and motor, described
First group of microswitch be made up of microswitch K1, K2；Described motor is made up of stator coil L1 and rotor；Described
Two ends of rotor be provided with two carbon brush；Described Pruner brake circuit also includes second group of microswitch, described second group
Microswitch is made up of microswitch K3, K4；In described microswitch, the common 1 of K1 and microswitch K3 is normal
Open contact 3 to connect；The normally-closed contact 2 of described microswitch K1 is connected and described micro-with the normally opened contact 3 of microswitch K2
The normally-closed contact 2 of dynamic switch K1 is also connected with the normally-closed contact 2 of microswitch K3 and one end of conjugation inductance L2；Institute
One supply lines of the normally opened contact 3 and alternating current of stating microswitch K1 is connected；The common 1 of described microswitch K2 with
The normally opened contact 3 of microswitch K4 connects；The normally-closed contact 2 of described microswitch K2 and another supply lines of alternating current,
The normally-closed contact 2 of microswitch K4 and one end of conjugation inductance L2 connect；The movable contact 1 of described microswitch K3 is with fixed
One end of subcoil L1 connects, and the other end of described stator coil L1 is connected with the common 1 of microswitch K4.
Microswitch K1 and microswitch K2 composition double-pole double-throw switch in first group of described microswitch；Described
Microswitch K3 and microswitch K4 composition double-pole double-throw switch in two groups of microswitch.
Described Pruner brake circuit also includes a conjugation inductance L2, one end of described conjugation inductance L2 and microswitch K3
Normally-closed contact 2, the normally-closed contact 2 of microswitch K4 connect, the other end of described conjugation inductance L2 and two carbon brush are even
Connect.
Described Pruner brake circuit also includes an electric capacity C, one end of described electric capacity C and the common of microswitch K1
1 connects, and the other end of described electric capacity C is connected with the normally-closed contact 2 of microswitch K2.
After using above structure, the present invention compared with prior art, has the advantage that
Pruner brake circuit of the present invention be provided with two groups of microswitch (respectively by microswitch K1, K2 and microswitch K3,
K4 forms), two groups of switches are independently controlled by two shift knobs respectively.Microswitch K1, microswitch K2 are pressed by main
Button or secondary button independently operate so that microswitch K1, microswitch K2 are closed at or disconnect；Microswitch K3, micro-
Dynamic switch K4 is independently operated by main button or secondary button so that microswitch K3, microswitch K4 are closed at or disconnect.
Eliminate the installation of the link gear of double-button and ensure that machine machine when two buttons are pressed simultaneously can be energized simultaneously
Run, when user unclamps either button the plugging loop of machine again can at once action, machine brake hard.The most not
Only eliminate the installing space of the link gear of conventional double-button, reduce the volume of pruner so that the handle rotation of pruner
Rotation structure is simplified, and adapts to the pruning of multiple angles branch, and the design meeting human engineering significantly reduces the labor of user
Fatigue resistance.From the point of view of pole tree pruners, this braking circuit is the rotational structure that enormously simplify handle, Er Qieji
The minimizing of tool linkage not only can improve the functional reliability of pruner, and reduces the cost of pruner.
As improvement, described microswitch K1 and microswitch K2 can be considered that double-pole double-throw switchs；Described fine motion is opened
Close K3 and microswitch K4 can be considered that double-pole double-throw switchs；I.e. double-point double-throw switch has a button that two can be driven to open
Close action while reed.Thus improve the functional reliability of Pruner brake circuit of the present invention to a certain extent.
As improvement, described Pruner brake circuit also includes a conjugation inductance L2, one end of described conjugation inductance L2 with
The normally-closed contact 2 of microswitch K3, the normally-closed contact 2 of microswitch K4 connect, the other end of described conjugation inductance L2 with
Two carbon brush connect.Conjugation inductance L2 improves the capacity of resisting disturbance of pruner circuit, makes machine meet EMC requirement.
As improvement, described Pruner brake circuit also includes an electric capacity C, one end of described electric capacity C and microswitch K1
Common 1 connect, the other end of described electric capacity C is connected with the normally-closed contact 2 of microswitch K2.Electric capacity C improves
The capacity of resisting disturbance of pruner circuit, makes machine meet EMC requirement.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of prior art Pruner brake circuit.
Fig. 2 is the circuit theory diagrams of Pruner brake circuit of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As in figure 2 it is shown, one Pruner brake circuit of the present invention, including first group of microswitch and motor, described first
Group microswitch is made up of microswitch K1, K2；Stator coil L1 and rotor (i.e. motor label place in figure) are to belong to
In motor, but in order to understand expression, so being separately picture in circuit diagram.Described motor by stator coil L1 and
Rotor forms；Described two ends of rotor is provided with two carbon brush；Described Pruner brake circuit also includes second group of microswitch,
Second group of described microswitch is made up of microswitch K3, K4；The common 1 of K1 and fine motion in described microswitch
The normally opened contact 3 of switch K3 connects；The normally-closed contact 2 of described microswitch K1 and the normally opened contact 3 of microswitch K2
Connect and described microswitch K1 normally-closed contact 2 also with the normally-closed contact 2 of microswitch K3 and conjugation inductance L2
One end connects；The normally opened contact 3 of described microswitch K1 is connected with a supply lines of alternating current；Described microswitch K2
Common 1 is connected with the normally opened contact 3 of microswitch K4；The normally-closed contact 2 of described microswitch K2 and alternating current
One end of another supply lines, the normally-closed contact 2 of microswitch K4 and conjugation inductance L2 connects；Described microswitch K3
Movable contact 1 is connected with one end of stator coil L1, and the other end of described stator coil L1 touches with the public of microswitch K4
Point 1 connection.
Microswitch K1 and microswitch K2 composition double-pole double-throw switch in first group of described microswitch；Described
Microswitch K3 and microswitch K4 composition double-pole double-throw switch in two groups of microswitch.Two locks of double-point double-throw switch
Cutter is that action, i.e. double-point double-throw switch simultaneously has a button can drive action while two switch spring.
Described Pruner brake circuit also includes a conjugation inductance L2, one end of described conjugation inductance L2 and microswitch K3
Normally-closed contact 2, the normally-closed contact 2 of microswitch K4 connect, the other end of described conjugation inductance L2 and two carbon brush are even
Connect.
Described Pruner brake circuit also includes an electric capacity C, one end of described electric capacity C and the common of microswitch K1
1 connects, and the other end of described electric capacity C is connected with the normally-closed contact 2 of microswitch K2.
During work, when pressing main button (i.e. microswitch K1 and microswitch K2 Guan Bi), normal through K1 of electric current
Open contact 3, common 1, if now secondary button is not pressed, the K3 normally opened contact being connected with K1 common K1-1
K3-3 disconnects, and motor will not power on；If now secondary button is pressed simultaneously, then electric current is through the normally opened contact K3-3, public of K3
Contact K3-1, common K4-1 of stator coil L1, K4, normally opened contact K4-3, common K2-1 of K2, often
Opening contact K2-3, be conjugated inductance L2, rotor, pruner is started working.When individually pressing secondary button (i.e. microswitch K3
Close with microswitch K4) time, due to open circuit at K1-3, thus without powering on.
When unclamping main button, open circuit at K1, the most no longer power to motor, therefore the electromotive force of stator coil residual produces reversely
Electric current, drive motor inverts, and the positive movement that after offsetting power-off, rotor produces because of inertia reaches to allow motor in 1 second
Quick stopping purpose.When unclamping secondary button, open circuit at K3, the most no longer power to motor, therefore stator coil remains
Electromotive force produces reverse current, and drive motor inverts, and the positive movement that after offsetting power-off, rotor produces because of inertia reaches to allow
Motor is quick stopping purpose in 1 second.
Below only highly preferred embodiment of the present invention is described, but is not to be construed as limitations on claims.The present invention
Being not limited only to above example, its concrete structure allows to change.In every case in the protection domain of independent claims of the present invention
The various changes made are the most within the scope of the present invention.
Claims (3)
1. a Pruner brake circuit, including first group of microswitch and motor, first group of described microswitch is by micro-
Dynamic switch K1, K2 composition；Described motor is made up of stator coil L1 and rotor；Described two ends of rotor is provided with two carbon
Brush；It is characterized in that: described Pruner brake circuit also includes second group of microswitch and a conjugation inductance L2, described
Second group of microswitch is made up of microswitch K3, K4；The common 1 of K1 and microswitch K3 in described microswitch
Normally opened contact 3 connect；The normally-closed contact 2 of described microswitch K1 is connected and institute with the normally opened contact 3 of microswitch K2
The normally-closed contact 2 stating microswitch K1 is also connected with the normally-closed contact 2 of microswitch K3 and one end of conjugation inductance L2；
The normally opened contact 3 of described microswitch K1 is connected with a supply lines of alternating current；The common 1 of described microswitch K2
It is connected with the normally opened contact 3 of microswitch K4；The normally-closed contact 2 of described microswitch K2 and another supply lines of alternating current,
The normally-closed contact 2 of microswitch K4 and one end of conjugation inductance L2 connect；The movable contact 1 of described microswitch K3 is with fixed
One end of subcoil L1 connects, and the other end of described stator coil L1 is connected with the common 1 of microswitch K4；Institute
The one end stating conjugation inductance L2 is connected with the normally-closed contact 2 of microswitch K3, the normally-closed contact 2 of microswitch K4, described
The other end and two carbon brush of conjugation inductance L2 connect.
Pruner brake circuit the most according to claim 1, it is characterised in that: in first group of described microswitch
Microswitch K1 and microswitch K2 composition double-pole double-throw switch；Microswitch K3 in second group of described microswitch
With microswitch K4 composition double-pole double-throw switch.
Pruner brake circuit the most according to claim 1, it is characterised in that: described Pruner brake circuit is also
Including an electric capacity C, one end of described electric capacity C is connected with the common 1 of microswitch K1, the other end of described electric capacity C
It is connected with the normally-closed contact 2 of microswitch K2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725868.3A CN103746615B (en) | 2013-12-25 | 2013-12-25 | Pruner brake circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725868.3A CN103746615B (en) | 2013-12-25 | 2013-12-25 | Pruner brake circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103746615A CN103746615A (en) | 2014-04-23 |
| CN103746615B true CN103746615B (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725868.3A Active CN103746615B (en) | 2013-12-25 | 2013-12-25 | Pruner brake circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746615B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108605667B (en) * | 2016-12-06 | 2021-07-13 | 苏州宝时得电动工具有限公司 | Electric tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3965404A (en) * | 1973-08-17 | 1976-06-22 | Cordem Corporation | Apparatus and method of braking a universal motor for operating a compact winch |
| CN2840512Y (en) * | 2005-02-01 | 2006-11-22 | 杨宏伟 | Unidirectional series excitation formula motor emergency braking apparatus |
| CN202190240U (en) * | 2011-07-30 | 2012-04-11 | 宁波爱乐吉电动工具有限公司 | Pruning machine |
| CN202197512U (en) * | 2011-08-02 | 2012-04-25 | 常州格力博工具有限公司 | Braking electric device of loosener |
| CN203632582U (en) * | 2013-12-25 | 2014-06-04 | 宁波爱乐吉电动工具有限公司 | Pruning machine brake circuit |
-
2013
- 2013-12-25 CN CN201310725868.3A patent/CN103746615B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3965404A (en) * | 1973-08-17 | 1976-06-22 | Cordem Corporation | Apparatus and method of braking a universal motor for operating a compact winch |
| CN2840512Y (en) * | 2005-02-01 | 2006-11-22 | 杨宏伟 | Unidirectional series excitation formula motor emergency braking apparatus |
| CN202190240U (en) * | 2011-07-30 | 2012-04-11 | 宁波爱乐吉电动工具有限公司 | Pruning machine |
| CN202197512U (en) * | 2011-08-02 | 2012-04-25 | 常州格力博工具有限公司 | Braking electric device of loosener |
| CN203632582U (en) * | 2013-12-25 | 2014-06-04 | 宁波爱乐吉电动工具有限公司 | Pruning machine brake circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103746615A (en) | 2014-04-23 |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315157 Yinzhou District City, Ningbo Province, Zhejiang Town Village Patentee after: NINGBO ENERGY POWER TOOLS Co.,Ltd. Address before: 315157 Yinzhou District City, Ningbo Province, Zhejiang Town Village Patentee before: NINGBO AILEJI ELECTRIC TOOL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 315157 No.50 Dongbei Road, Dongqiao Industrial Zone, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO ENERGY POWER TOOLS Co.,Ltd. Address before: 315157, Zhejiang Province, Yinzhou District, Ningbo hole town, Cheng Village Patentee before: NINGBO ENERGY POWER TOOLS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140423 Assignee: Ningbo Aileji Electrical Appliance Co.,Ltd. Assignor: NINGBO ENERGY POWER TOOLS Co.,Ltd. Contract record no.: X2023980052617 Denomination of invention: Brake circuit of pruning machine Granted publication date: 20161005 License type: Common License Record date: 20231215 |
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| EE01 | Entry into force of recordation of patent licensing contract |