CN203787991U - Improved electric tool - Google Patents
Improved electric tool Download PDFInfo
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- CN203787991U CN203787991U CN201420023065.3U CN201420023065U CN203787991U CN 203787991 U CN203787991 U CN 203787991U CN 201420023065 U CN201420023065 U CN 201420023065U CN 203787991 U CN203787991 U CN 203787991U
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- unit
- storage unit
- charge storage
- voltage value
- voltage
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Abstract
The utility model provides an improved electric tool. The improved electric tool comprises a universal serial bus unit, a charging unit, a control unit, a power storage unit, a voltage detection unit, a switch unit and a motor unit. If the voltage of the power storage unit is no greater than a first critical voltage value, the power storage unit is charged by a first fixed trickle current until the voltage of the power storage unit is greater than the first critical voltage value. Then, the power storage unit is charged by a constant current until the voltage of the power storage unit is equal to or greater than a second critical voltage value. Thereafter, the power storage unit is charged by a constant current until the power storage unit is charged such that the current is a second fixed trickle current, and the charging operation is stopped. If the instant voltage of the power storage unit drops to be equal to or lower than a third critical voltage value, floating charging is automatically performed on the power storage unit. Thus, the improved electric tool is convenient in charging, and the charging efficiency is improved.
Description
Technical field
The utility model is about a kind of electric tool, particularly a kind of improved type electric power driven tools.
Background technology
Electric tool (for example electric screw driver) is applied to assembled machine table, machine or article widely, and it can accelerate the speed of assembling widely; Therefore, electric tool is extremely important; Yet at present the charging modes of general electric tool is but convenient not and charge efficiency is good not.
For example TaiWan, China patent announcement M456270 discloses a kind of electric tool, and this electric tool includes fuselage, handle and power supply module; Wherein, this fuselage has the first side and is positioned at the second side of this first side opposition side, and has the first junction surface in this second side, and this first junction surface has the first bearing surface towards this first side; This handle has first end and is positioned at the second end of this first end opposition side, and this first end has the second junction surface, and this second junction surface has the second bearing surface towards this second end; Wherein, this first end is connected with the second side of this fuselage, is combined with this first junction surface in this second junction surface, and this second bearing surface and this first bearing surface butt, and this handle is fixed on this fuselage; This power supply module is incorporated into the second end of this handle, in order to the required power supply of supply action.Yet TaiWan, China patent announcement M456270 has above-mentioned charging modes to facilitate not and the imperfect shortcoming of charge efficiency.
For example TaiWan, China patent announcement I335856 discloses a kind of electric tool again, and this electric tool includes lithium battery group, electric storage device, motor, switch, train of reduction gears and beater mechanism; Electric storage device is electrically parallel to lithium battery group, switch is electrically connected between electric storage device and motor, switch can make to be conducting state between electric storage device and motor, and train of reduction gears is connected in the output shaft of motor, and beater mechanism is driven by train of reduction gears and moves back and forth along predetermined direction; Whereby, when being conducting state between electric storage device and motor, motor drives train of reduction gears, and then drives beater mechanism to move.Yet TaiWan, China patent announcement I335856 also has above-mentioned charging modes to facilitate not and the imperfect shortcoming of charge efficiency.
In sum, at present the charging modes of general existing electric tool is all convenient not and charge efficiency is all good not.
Utility model content
In view of this, main purpose of the present utility model is to provide a kind of improved type electric power driven tools.
For achieving the above object, improved electric tool applications of the present utility model is in direct voltage feeding mechanism, this improved type electric power driven tools is electrically connected to described direct voltage feeding mechanism, this improved electric kit contains: USB unit, and this USB unit is electrically connected to described direct voltage feeding mechanism; Charhing unit, this charhing unit is electrically connected to described USB unit; Control unit, this control unit is electrically connected to described charhing unit; Charge storage unit, this charge storage unit is electrically connected to described charhing unit; Detecting voltage unit, this detecting voltage unit is electrically connected to described charge storage unit and described control unit; Switch element, this switch element is electrically connected to described charge storage unit; And motor unit, this motor unit is electrically connected to described switch element.Wherein said detecting voltage unit is in order to detect the voltage of described charge storage unit and to notify described control unit; If the voltage of described charge storage unit is not more than the first critical voltage value, described control unit control described charhing unit with first fixedly trickle described charge storage unit is charged, until the voltage of described charge storage unit is greater than described the first critical voltage value; If wherein the voltage of described charge storage unit is greater than described the first critical voltage value, described control unit is controlled described charhing unit and to determine electric current, described charge storage unit is charged, until the voltage of described charge storage unit is more than or equal to the second critical voltage value; If wherein the voltage of described charge storage unit is more than or equal to described the second critical voltage value, described control unit is controlled described charhing unit and to determine voltage, described charge storage unit is charged, until described charge storage unit is charged to electric current, be second fixedly during trickle, stop charging; Wherein after described charge storage unit is fully charged, and when the instantaneous voltage of described charge storage unit declines and while being less than or equal to the 3rd critical voltage value, described control unit is controlled described charhing unit to described charge storage unit floating charge, until the electric current that described charge storage unit is recharged is the 3rd when fixedly the instantaneous voltage of trickle and described charge storage unit is greater than described the 3rd critical voltage value, stop floating charge; Wherein said the second critical voltage value is greater than described the first critical voltage value, described the second critical voltage value is greater than described the 3rd critical voltage value, described the 3rd critical voltage value is greater than described the first critical voltage value, describedly determine electric current and be greater than the described first fixing trickle, describedly determine electric current and be greater than the described second fixing trickle, describedly determine electric current and be greater than the described the 3rd fixing trickle.
Preferably, described improved type electric power driven tools also comprises charging indicating member, and this charging indicating member is electrically connected to described control unit.
Preferably, described charging indicating member comprises dichromatic LED, and this dichromatic LED is electrically connected to described control unit, and this dichromatic LED comprises red and green.Wherein, when described charge storage unit is recharged, described control unit is controlled described dichromatic LED and is glowed; When described charge storage unit is not recharged, described control unit is controlled described dichromatic LED green light.
Preferably, described the first critical voltage value is 2.5 volts, described the second critical voltage value is 3.6 volts of voltage stabilizings, described the 3rd critical voltage value is 3.3 volts, described first fixedly trickle be 100 milliamperes, described second fixedly trickle be 100 milliamperes, the described the 3rd fixedly trickle be 100 milliamperes, it is described that to determine electric current be 1000 milliamperes of current limlitings.
Preferably, described USB unit is small USB (micro universal serial bus); Described charhing unit is charging circuit.
Preferably, described control unit is microprocessor or microcontroller.
Preferably, described charge storage unit is chargeable lithium cell.
Preferably, described detecting voltage unit is voltage detection circuit or voltage detector.
Preferably, described switch element is power change-over switch, and this power change-over switch is powered to described motor unit in order to control described charge storage unit; When described switch element conducting, described charge storage unit is powered to described motor unit; When described not conducting of switch element, described charge storage unit is not to described motor unit power supply.
Preferably, described motor unit is electric tool motor.
Compared with prior art, effect of the present utility model is to make that the charging modes of electric tool is convenient and charge efficiency is better.
Accompanying drawing explanation
Fig. 1 is the block diagram of the first embodiment of improved type electric power driven tools of the present utility model;
Fig. 2 is the block diagram of the second embodiment of improved type electric power driven tools of the present utility model.
Description of reference numerals
10 improved type electric power driven tools 20 direct voltage feeding mechanisms
102 USB unit 104 charhing units
106 control unit 108 charge storage unit
110 detecting voltage unit 112 switch elements
114 motor unit 116 charging indicating members
118 dichromatic LEDs
Embodiment
Relevant the technical content and a detailed description of the present utility model, are described as follows cooperation accompanying drawing, yet appended accompanying drawing is only as illustrative purposes, not for limiting to the utility model.
Please refer to Fig. 1, is the block diagram of the first embodiment of improved type electric power driven tools of the present utility model.Improved type electric power driven tools 10 is applied to direct voltage feeding mechanism 20; This improved type electric power driven tools 10 is electrically connected to this direct voltage feeding mechanism 20.
This improved type electric power driven tools 10 comprises USB unit 102, charhing unit 104, control unit 106, charge storage unit 108, detecting voltage unit 110, switch element 112 and motor unit 114.
This USB unit 102 is electrically connected to this direct voltage feeding mechanism 20; This charhing unit 104 is electrically connected to this USB unit 102; This control unit 106 is electrically connected to this charhing unit 104; This charge storage unit 108 is electrically connected to this charhing unit 104; This detecting voltage unit 110 is electrically connected to this charge storage unit 108 and this control unit 106; This switch element 112 is electrically connected to this charge storage unit 108; This motor unit 114 is electrically connected to this switch element 112.
This detecting voltage unit 110 is in order to detect the voltage of this charge storage unit 108 and to notify this control unit 106.The flow process of charging is as follows:
If the voltage of this charge storage unit 108 is not more than the first critical voltage value, this control unit 106 control these charhing units 104 with first fixedly trickle this charge storage unit 108 is charged, until the voltage of this charge storage unit 108 is greater than this first critical voltage value.
If the voltage of this charge storage unit 108 is greater than this first critical voltage value, this control unit 106 is controlled this charhing unit 104 to determine electric current to these charge storage unit 108 chargings, until the voltage of this charge storage unit 108 is more than or equal to the second critical voltage value.
If the voltage of this charge storage unit 108 is more than or equal to this second critical voltage value, this control unit 106 is controlled this charhing unit 104 to determine voltage to these charge storage unit 108 chargings, until this charge storage unit 108 is charged to electric current, be second fixedly during trickle, stop charging.
After this charge storage unit 108 is fully charged, and when the instantaneous voltage of this charge storage unit 108 declines and while being less than or equal to the 3rd critical voltage value, this control unit 106 is controlled 104 pairs of these charge storage unit 108 floating charges of this charhing unit, until the electric current that this charge storage unit 108 is recharged is the 3rd when fixedly the instantaneous voltage of trickle and this charge storage unit 108 is greater than the 3rd critical voltage value, stop floating charge.
Discharging and recharging of battery is exactly that a kind of reduction is reacted with the activity chemistry of oxidation; Because battery is in charging, current potential up floats, and when charging cut-off, cell voltage has pressure drop phenomena, is called instantaneous voltage.This charhing unit 104 of the present utility model has the function automatically recharging, so be down to while being less than the 3rd critical voltage value when being full of the instantaneous voltage of electric battery, will be automatically boosting battery again, until this of charging determined electric current for the 3rd fixedly during trickle, stop charging, when battery is again during pressure drop, circulation according to this again, the charging that goes round and begins again, until the instantaneous voltage of battery while being greater than the 3rd critical voltage value, just can not start automatic charging function.
In addition, this second critical voltage value is greater than this first critical voltage value, this second critical voltage value is greater than the 3rd critical voltage value, the 3rd critical voltage value is greater than this first critical voltage value, this is determined electric current and is greater than this first fixing trickle, this is determined electric current and is greater than this second fixing trickle, and this is determined electric current and is greater than the 3rd fixing trickle.
In addition, this first critical voltage value can be for example but is not defined as 2.5 volts, this second critical voltage value can be for example but is not defined as 3.6 volts of voltage stabilizings, the 3rd critical voltage value can be for example but is not defined as 3.3 volts, this first fixedly trickle can be for example but be not defined as 100 milliamperes, this second fixedly trickle can be for example but be not defined as 100 milliamperes, the 3rd fixedly trickle can be for example but be not defined as 100 milliamperes, this determines electric current can be for example but be not defined as 1000 milliamperes of current limlitings.
Wherein can be for example but be not defined as small USB (micro universal serial bus) in this USB unit 102; This charhing unit 104 can be for example but is not defined as charging circuit; This control unit 106 can be for example but is not defined as microprocessor or microcontroller; This charge storage unit 108 can be for example but is not defined as chargeable lithium cell; Can be for example but be not defined as voltage detection circuit or voltage detector in this detecting voltage unit 110; This motor unit 114 can be for example but not be defined as electric tool motor.
Wherein this switch element 112 can be for example but is not defined as power change-over switch, in order to control 114 power supplies of 108 pairs of these motor units of this charge storage unit; When this switch element 112 conducting, 114 power supplies of 108 pairs of these motor units of this charge storage unit; When this switch element 112 not conducting, this charge storage unit 108 is not to these motor unit 114 power supplies.
Please refer to Fig. 2, is the block diagram of the second embodiment of improved type electric power driven tools of the present utility model.The place that Fig. 2 is similar to Fig. 1, does not repeat them here.In addition, this improved type electric power driven tools 10 also comprises charging indicating member 116, and this charging indicating member 116 is electrically connected to this control unit 106.Wherein this charging indicating member 116 comprises dichromatic LED 118; This dichromatic LED 118 is electrically connected to this control unit 106; This dichromatic LED 118 comprises red and green.When this charge storage unit 108 is recharged, this control unit 106 is controlled this dichromatic LED 118 and is glowed; When this charge storage unit 108 is not recharged, this control unit 106 is controlled these dichromatic LED 118 green light.
Function of the present utility model be to make the charging modes of electric tool convenient (this direct voltage feeding mechanism 20 is by 104 power supplies of this charhing unit of 102 pairs of this USB unit) and charge efficiency better.
The above, be only illustrating of preferred embodiment of the present utility model, and not in order to limit to protection range of the present utility model, other any equivalent transformation all should belong to the application's claim scope.
Claims (10)
1. an improved type electric power driven tools, is characterized in that, this improved electric tool applications is in direct voltage feeding mechanism, and this improved type electric power driven tools is electrically connected to described direct voltage feeding mechanism, and this improved electric kit contains:
USB unit, this USB unit is electrically connected to described direct voltage feeding mechanism;
Charhing unit, this charhing unit is electrically connected to described USB unit;
Control unit, this control unit is electrically connected to described charhing unit;
Charge storage unit, this charge storage unit is electrically connected to described charhing unit;
Detecting voltage unit, this detecting voltage unit is electrically connected to described charge storage unit and described control unit;
Switch element, this switch element is electrically connected to described charge storage unit; And
Motor unit, this motor unit is electrically connected to described switch element,
Wherein said detecting voltage unit is in order to detect the voltage of described charge storage unit and to notify described control unit; If the voltage of described charge storage unit is not more than the first critical voltage value, described control unit control described charhing unit with first fixedly trickle described charge storage unit is charged, until the voltage of described charge storage unit is greater than described the first critical voltage value;
If wherein the voltage of described charge storage unit is greater than described the first critical voltage value, described control unit is controlled described charhing unit and to determine electric current, described charge storage unit is charged, until the voltage of described charge storage unit is more than or equal to the second critical voltage value;
If wherein the voltage of described charge storage unit is more than or equal to described the second critical voltage value, described control unit is controlled described charhing unit and to determine voltage, described charge storage unit is charged, until described charge storage unit is charged to electric current, be second fixedly during trickle, stop charging;
Wherein after described charge storage unit is fully charged, and when the instantaneous voltage of described charge storage unit declines and while being less than or equal to the 3rd critical voltage value, described control unit is controlled described charhing unit to described charge storage unit floating charge, until the electric current that described charge storage unit is recharged is the 3rd when fixedly the instantaneous voltage of trickle and described charge storage unit is greater than described the 3rd critical voltage value, stop floating charge;
Wherein said the second critical voltage value is greater than described the first critical voltage value, described the second critical voltage value is greater than described the 3rd critical voltage value, described the 3rd critical voltage value is greater than described the first critical voltage value, describedly determine electric current and be greater than the described first fixing trickle, describedly determine electric current and be greater than the described second fixing trickle, describedly determine electric current and be greater than the described the 3rd fixing trickle.
2. improved type electric power driven tools as claimed in claim 1, is characterized in that, this improved type electric power driven tools also comprises charging indicating member, and this charging indicating member is electrically connected to described control unit.
3. improved type electric power driven tools as claimed in claim 2, it is characterized in that, described charging indicating member comprises dichromatic LED, this dichromatic LED is electrically connected to described control unit, this dichromatic LED comprises red and green, wherein, when described charge storage unit is recharged, described control unit is controlled described dichromatic LED and is glowed; When described charge storage unit is not recharged, described control unit is controlled described dichromatic LED green light.
4. improved type electric power driven tools as claimed in claim 3, it is characterized in that, described the first critical voltage value is 2.5 volts, described the second critical voltage value is 3.6 volts of voltage stabilizings, described the 3rd critical voltage value is 3.3 volts, described first fixedly trickle be 100 milliamperes, described second fixedly trickle be 100 milliamperes, the described the 3rd fixedly trickle be 100 milliamperes, it is described that to determine electric current be 1000 milliamperes of current limlitings.
5. improved type electric power driven tools as claimed in claim 4, is characterized in that, described USB unit is small USB; Described charhing unit is charging circuit.
6. improved type electric power driven tools as claimed in claim 5, is characterized in that, described control unit is microprocessor or microcontroller.
7. improved type electric power driven tools as claimed in claim 6, is characterized in that, described charge storage unit is chargeable lithium cell.
8. improved type electric power driven tools as claimed in claim 7, is characterized in that, described detecting voltage unit is voltage detection circuit or voltage detector.
9. improved type electric power driven tools as claimed in claim 8, is characterized in that, described switch element is power change-over switch, and this power change-over switch is powered to described motor unit in order to control described charge storage unit; When described switch element conducting, described charge storage unit is powered to described motor unit; When described not conducting of switch element, described charge storage unit is not to described motor unit power supply.
10. improved type electric power driven tools as claimed in claim 9, is characterized in that, described motor unit is electric tool motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023065.3U CN203787991U (en) | 2014-01-14 | 2014-01-14 | Improved electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420023065.3U CN203787991U (en) | 2014-01-14 | 2014-01-14 | Improved electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787991U true CN203787991U (en) | 2014-08-20 |
Family
ID=51324144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420023065.3U Expired - Fee Related CN203787991U (en) | 2014-01-14 | 2014-01-14 | Improved electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380476A (en) * | 2019-07-17 | 2019-10-25 | 闻泰科技(无锡)有限公司 | Charge control method, device, equipment and storage medium |
-
2014
- 2014-01-14 CN CN201420023065.3U patent/CN203787991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380476A (en) * | 2019-07-17 | 2019-10-25 | 闻泰科技(无锡)有限公司 | Charge control method, device, equipment and storage medium |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20180114 |