CN201911062U - Cordless electric tool - Google Patents
Cordless electric tool Download PDFInfo
- Publication number
- CN201911062U CN201911062U CN2010206379254U CN201020637925U CN201911062U CN 201911062 U CN201911062 U CN 201911062U CN 2010206379254 U CN2010206379254 U CN 2010206379254U CN 201020637925 U CN201020637925 U CN 201020637925U CN 201911062 U CN201911062 U CN 201911062U
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- output
- battery supply
- energy management
- load signal
- power tool
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Abstract
The utility model discloses a cordless electric tool which comprises a battery supply, a motor with power supplied by the battery supply, a working device driven by the motor, and an energy management device respectively connected with the working device and the battery supply, wherein the energy management device samples the load signal of the working device which is in operation; when the sampled value of the load signal is larger than the preset first standard value, the operating output of the battery supply is adjusted automatically: the low operating output is changed to the high operating output. In the cordless electric tool of the utility model, the energy management device is arranged to effectively manage the electric energy output of the battery and improve the service efficiency of the electric energy in the battery, so that the service time of the battery is improved.
Description
Technical field
The utility model relates to a kind of cordless power tool, especially a kind of cordless power tool with energy management apparatus, for example, wireless mower.
Background technology
Along with the development of electric tool, the scope of its application is more and more extensive.In order to improve the ease of use of electric tool, overcome power line and use the restriction in zone for electric tool, the development of cordless power tool also is greatly improved.
And, can be subjected to the restriction of some objective condition owing to the battery that power is provided for cordless power tool, and for example, volume, weight or the like causes its capacitance can have the heap(ed) capacity restriction, and this also will cause to be restricted the service time of electric tool.Therefore, how to improve the service time of predetermined volumes battery, all be the emphasis of industry research and development all the time.
The utility model content
In order to improve the service time of cordless power tool battery, the utility model provides a kind of cordless power tool, and it has energy management apparatus, and it can effectively manage battery electric quantity output, and then the service efficiency of raising battery electric quantity, thereby the service time of improving battery.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of cordless power tool, it comprises battery supply, the motor of power is provided by battery supply, by the equipment of motor driven and the energy management apparatus that is connected with battery supply with equipment respectively, wherein battery supply initially is to start output with low work, in follow-up operation process, load signal when the lasting dynamic sampling work device of energy management apparatus is worked, when its sampling numerical value of finding load signal during greater than first standard figures default in it, the work output that then can adjust battery supply automatically becomes high workload by low work output and exports.
Further, in different embodiments, load signal when wherein energy management apparatus sampling work device is worked, when it finds the sampling numerical value of load signal, within a certain period of time, when continuing less than first standard figures default in it, the work output of adjusting battery supply automatically becomes low work output by high workload output.
The cordless power tool that the utility model relates to comes the load information of its equipment is sampled by the energy management apparatus that is provided with, make that it can be according to load information, adjust battery supply and export to the power of motor, thereby improve the service efficiency of battery supply.For example, under the less situation of equipment load, energy management apparatus is adjusted battery supply and is exported to motor with lower power.And when load becomes big, then be in time to adjust battery supply to export to motor with bigger power.So, according to the loading condition of equipment, adjust the output of battery supply dynamically, make it can not appear under the less situation of load,, cause the electric weight waste still with more high-power output, and then to a certain extent, prolonged the service time of battery supply.
Further, in different embodiments, the concrete numerical values recited for first standard figures that adopts can set up on their own according to actual needs, and indefinite.Further, on first standard figures, also second, third standard figures or the like can be set, make not only low, high two output modes of output of battery supply, can be ascending a plurality of output mode.
Further, in different embodiments, the load signal when wherein equipment is worked comprises the current value that it passes through.
Further, in different embodiments, wherein energy management apparatus comprises that (Micro Controller Unit, MCU), it is used for the sampling work device load signal in when work to microcontroller, and the work output of control power supply.
Further, in different embodiments, wherein energy management apparatus also comprises MOSFET, microcontroller is controlled low, the high workload output of power supply by control MOSFET (Metallic Oxide Semieonductor Field Effect Transistor, mos field effect transistor).
Further, in different embodiments, wherein cordless power tool is wireless mower, and equipment is a cutterhead.
Further, in different embodiments, wherein energy management apparatus comprises control device and the checkout gear that is attached thereto, checkout gear is connected with equipment and is used to sample its load signal, and the load signal that obtains of will sampling passes to control device, control device is according to the comparative result of the signal numerical value that detects acquisition greater than first default in it standard figures, and the work output of adjusting battery supply automatically becomes high workload output by low work output.
Further, in different embodiments, the wherein control device that comprises of energy management apparatus and the checkout gear that is attached thereto, under technical conditions now, both can be combined into a device.Both functions promptly are provided by single device, for example, microcontroller mentioned above.
The beneficial effects of the utility model are, the cordless power tool that the utility model relates to comes the load information of its equipment is sampled by the energy management apparatus that is provided with, make it to adjust the power that battery supply is exported to motor dynamically according to the load state of equipment.It is little to avoid occurring the equipment load, and the big situation of power output takes place.Avoid the battery electric quantity unnecessary loss, improved the service efficiency of battery supply, and to a certain extent, prolonged the service time of battery supply.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the building-block of logic of the cordless power tool that relates to of the utility model.
Embodiment
See also shown in Figure 1ly, the utility model relates to a kind of cordless power tool, and it includes battery supply, energy management apparatus, motor and equipment.Wherein energy management apparatus comprises microcontroller (Micro Controller Unit, MCU) and MOSFET, load signal when microcontroller is used for the work of sampling work device, and according to the load information of equipment, control low, the high workload output of power supply by control MOSFET (Metallic Oxide Semiconductor Field Effect Transistor, mos field effect transistor).
In an embodiment, the cordless power tool that the utility model relates to is wireless mower, and during its initial start, battery supply is with lower power output, keeps the operate as normal of its cutterhead.And in follow-up operation process, its energy management apparatus is by the load information of sampling work device cutterhead, for example, and the current information that it passes through, the load size of coming judgment task device cutterhead.When its sampling finds that electric current becomes big suddenly, then explanation, the cutterhead load strengthens.At this moment, the microcontroller of energy management apparatus then can be according to this information, and the current value that promptly passes through by MOSFET, is heightened the output of battery supply greater than the comparative result of first predetermined in it standard figures, works normally to guarantee cutterhead.
And when the cutterhead load diminishes, at this moment if battery supply also with more high-power output, then can cause the unnecessary waste of battery electric quantity.At this moment the energy management apparatus information that then can diminish according to this load, the current value that promptly passes through continues the comparative result less than first predetermined in it standard figures within a certain period of time, pass through MOSFET, turn down the output of battery supply, to avoid unnecessary electricity loss, also can guarantee that cutterhead works normally simultaneously.
The energy management apparatus of the cordless power tool that the utility model relates to by being provided with comes the load information of its equipment is sampled, and makes it to adjust the power that battery supply is exported to motor dynamically according to the load state of equipment.It is little and power output is big to avoid occurring the equipment load, or the big and power output of load is little etc., and situation takes place.Avoid the battery electric quantity unnecessary loss, or the battery power output is not enough, causes equipment normally not move.Improve the service efficiency of battery supply, and to a certain extent, prolonged the service time of battery supply.
Claims (7)
1. cordless power tool, it comprises battery supply, provide the motor of power and by the equipment of motor driven by battery supply, it is characterized in that, it also includes respectively the energy management apparatus that is connected with battery supply with equipment, wherein battery supply initially is to start output with low work, in follow-up operation process, load signal when the lasting dynamic sampling work device of energy management apparatus is worked, when its sampling numerical value of finding load signal during greater than first standard figures default in it, the work output that then can adjust battery supply automatically becomes high workload by low work output and exports.
2. cordless power tool as claimed in claim 1, it is characterized in that, load signal when wherein energy management apparatus sampling work device is worked, when it finds the sampling numerical value of load signal, within a certain period of time, when continuing less than first standard figures default in it, the work output of adjusting battery supply automatically becomes low work output by high workload output.
3. cordless power tool as claimed in claim 1 is characterized in that, the load signal when wherein equipment is worked comprises the current value that it passes through.
4. cordless power tool as claimed in claim 1 is characterized in that wherein energy management apparatus comprises microcontroller, the load signal when it is used for the work of sampling work device, and the work output of control power supply.
5. cordless power tool as claimed in claim 4 is characterized in that wherein energy management apparatus also comprises MOSFET, and microcontroller is controlled low, the high workload output of power supply by control MOSFET.
6. cordless power tool as claimed in claim 1 is characterized in that, wherein cordless power tool is wireless mower, and equipment is a cutterhead.
7. cordless power tool as claimed in claim 1, it is characterized in that, wherein energy management apparatus comprises control device and the checkout gear that is attached thereto, checkout gear is connected with equipment and is used to sample its load signal, and the load signal that obtains of will sampling passes to control device, control device is according to the comparative result of the signal numerical value that detects acquisition greater than first default in it standard figures, and the work output of adjusting battery supply automatically becomes high workload output by low work output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206379254U CN201911062U (en) | 2010-12-01 | 2010-12-01 | Cordless electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206379254U CN201911062U (en) | 2010-12-01 | 2010-12-01 | Cordless electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201911062U true CN201911062U (en) | 2011-08-03 |
Family
ID=44410883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206379254U Expired - Fee Related CN201911062U (en) | 2010-12-01 | 2010-12-01 | Cordless electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201911062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484964A (en) * | 2010-12-01 | 2012-06-06 | 天佑电器（苏州）有限公司 | Cordless electric tool |
-
2010
- 2010-12-01 CN CN2010206379254U patent/CN201911062U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484964A (en) * | 2010-12-01 | 2012-06-06 | 天佑电器（苏州）有限公司 | Cordless electric tool |
| CN102484964B (en) * | 2010-12-01 | 2014-12-10 | 天佑电器（苏州）有限公司 | Cordless electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |