CN202818730U - Multifunctional working lamp - Google Patents
Multifunctional working lamp Download PDFInfo
- Publication number
- CN202818730U CN202818730U CN2012204981296U CN201220498129U CN202818730U CN 202818730 U CN202818730 U CN 202818730U CN 2012204981296 U CN2012204981296 U CN 2012204981296U CN 201220498129 U CN201220498129 U CN 201220498129U CN 202818730 U CN202818730 U CN 202818730U
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- China
- Prior art keywords
- led
- mcu
- pin
- usb switch
- battery capacity
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a multifunctional working lamp. The multifunctional working lamp comprises a MCU, a USB switch, an electric quantity indicating lamp and a first resistor. One pin of the USB switch is grounded, and the other pin of the USB switch is connected with the control pin of the MCU. One end of the first resistor is grounded, the other end of the first resistor is connected with an LED lighting tube, and one end of the first resistor is connected with the sampling pin of the MCU. The electric quantity indicating lamp is connected with the control pin of the MCU. A control signal is sent by the USB switch to the MCU, after the control signal is received by the MCU, the electric quantity indicating lamp is in the display working condition; when the USB switch is switched off, a switch-off signal is received by the MCU, so the MCU is in the standby state, and the electric quantity indicating lamp stops working. The display of the electric quantity indicating lamp is controlled by the USB switch, so the standby time or the effective working time can be effectively reduced, so that the circuit loss and the component aging can be reduced, the power consumption is reduced, and the performance of the product can be improved.
Description
Technical field
The utility model relates to a kind of multi-functional working light, especially by the USB(USB) switch is by the MCU(microcontroller) control comes the multi-functional working light of electric weight indicator light work.
Background technology
Extensively adopt in the market the 4th generation environmental protection LED(light-emitting diode) solid state light emitter, this LED solid state light emitter energy consumption is low, light efficiency is high, long service life, can be widely used in the enterprises and institutions such as railway, electric power, public security, iron and steel and do the portable lighting use.
The electric weight of work on hand lamp shows it generally all is long the demonstration, and the USB mouth of the output module that externally charges also constantly is in treats output state.And the electric weight of power supply self is limited, and is long bright if the battery capacity indication lamp is in, electric weight that will the loss battery, but also can make element quick aging in the module; Will cause reducing of circuit stand-by time or effective time like this, directly affect the performance of product.
The utility model content
It is long bright that problem to be solved in the utility model is that the battery capacity indication lamp is in, externally output module is in holding state for a long time, and the electric weight of loss battery, and make the element quick aging in the module, cause reducing of circuit stand-by time or effective time, directly affected the problem of the performance of product.
The utility model solves above-mentioned technical problem by following technical proposals:
The utility model discloses a kind of Multifunction work light, comprise a MCU, a USB switch and one first resistance, described USB switch one pin ground connection, another pin links to each other with the control pin of described MCU; Described the first resistance one end ground connection, another termination one LED lighting tube, described the first resistance one end links to each other with the sampling pin of MCU; Described battery capacity indication lamp links to each other with the control pin of described MCU, and described battery capacity indication lamp is comprised of a plurality of indication LED; Described USB switch is given described MCU one control signal, after described MCU receives described control signal, from described the first resistance sampling output current, and with a reference voltage relatively after, according to the difference of described output current and described reference voltage, described MCU lights the indication LED of described battery capacity indication lamp based on described difference; When described USB switch disconnected, described MCU received a cut-off signals, makes described MCU be in holding state, and described battery capacity indication lamp is quit work.
Wherein said MCU compares generation one difference voltage with a reference voltage behind described the first resistance sampling output current, described MCU shows described battery capacity indication lamp according to described difference voltage.
Preferably, described battery capacity indication lamp comprises a LED, one the 2nd LED and one the 3rd LED of a dual base color, and described MCU control pin connects respectively a described LED, the 2nd LED and the 3rd LED; When described difference voltage surpassed a first threshold voltage, a described LED was shown as the first color, and described the 2nd LED, the 3rd LED do not work; When described difference voltage surpassed a Second Threshold voltage, a described LED was shown as the second color, and described the 2nd LED, the 3rd LED do not work; When described difference voltage surpassed the 3rd threshold voltage, described the 2nd LED showed, and a described LED, the 3rd LED do not work; When described difference voltage surpassed the 4th threshold voltage, described the 3rd LED showed, and a described LED, the 2nd LED do not work.
Preferably, described work light also comprises an external output module, and the Enable Pin of described external output module links to each other with described MCU one control pin, and connects a LED illuminalive power-supply power supply at its input, connects one second resistance at its output; When described USB switch was given described MCU one enabling signal, described MCU activated the Enable Pin of described external output module by described control pin, externally charges from described LED illuminalive power-supply power supply; Whether described MCU is from described the second resistance sample rate current signal, complete to have judged whether charging device access and charging, if described MCU does not receive described signal and is operated under the charge mode, then can make described battery capacity indication lamp be in the stroboscopic state.
Preferably, described work light also comprises a charge management module, and the output of described charge management module directly links to each other with described LED illuminalive power-supply power supply, its input termination one DC5V power supply; When the outside DC5V power supply of access, described charge management module begins described LED illuminalive power-supply power source charges.
On the basis that meets this area general knowledge, above-mentioned each optimum condition, but combination in any namely get each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: use USB switch control battery capacity indication lamp and external output module work, effectively reduce standby and effective time, thereby reduced circuit loss and component ageing, reduce energy consumption, improve the performance of product.
Description of drawings
Fig. 1 is the workflow block diagram of the utility model multi-functional working light.
Embodiment
Can find out from the utility model embodiment shown in Figure 1, described multi-functional working light comprises MCU1, USB switch 2, battery capacity indication lamp 3, the first resistance 4, LED lighting tube 5, external output module 6, LED illuminalive power-supply power supply 7, the second resistance 8, charge management module 9.USB switch 2 one pin ground connection, another pin links to each other with the control pin of MCU1; The first resistance 4 one end ground connection, another termination LED lighting tube 5, the first resistance 4 one ends link to each other with the sampling pin of MCU1; Battery capacity indication lamp 3 links to each other with the control pin of MCU1, and described battery capacity indication lamp 3 comprises a LED, the 2nd LED and the 3rd LED of dual base color, respectively corresponding 10/30%, 70%, 100% electric weight; Externally the Enable Pin of output module 6 links to each other with the control pin of MCU1, and the input of output module 6 connects LED illuminalive power-supply power supply 7 outside, and the output of output module 6 connects the second resistance 8 outside; The output of charge management module 9 directly links to each other with LED illuminalive power-supply power supply 7, and the input of charge management module 9 can connect outside DC5V charge power supply.
In the time of need to making battery capacity indication lamp 3 and external output module 6 work, only need flicking USB switch 2, USB switch 2 sends a control signal to MCU1, after MCU1 receives this control signal, from the first resistance 4 sampling output currents, and will sample output current and MCU1 internal reference voltage compare and produce a difference voltage, when this difference voltage surpasses first threshold voltage, a described LED corresponding to 10/30% is shown in red, and does not work corresponding to 70% the 2nd LED, the 3rd LED corresponding to 100%; When described difference voltage surpassed Second Threshold voltage, a described LED was shown in green, and the 2nd LED, the 3rd LED do not work; When described difference voltage surpassed the 3rd threshold voltage, the 2nd LED showed, and a LED, the 3rd LED do not work; When described difference voltage surpassed the 4th threshold voltage, the 3rd LED showed, and a LED, the 2nd LED do not work; When not needing battery capacity indication lamp 3 and externally output module 6 is worked, flicking USB switch 2 enters holding state behind MCU1 detection USB switch 2 these states, and battery capacity indication lamp 3 is quit work again.Wherein reference voltage, first threshold voltage, Second Threshold voltage, the 3rd threshold voltage, the 4th threshold voltage can for 2.5V ,-1V, 0V, 1V, 2.5V or 2.5V ,-1.5V, 0V, 1.5V, 2V etc.
When USB switch 2 was given described MCU1 enabling signal, MCU1 entered operating state, and activates the Enable Pin of external output module 6 by controlling pin, externally charges from LED illuminalive power-supply power supply 7; MCU1 is from the second resistance 8 sample rate current signals, whether complete to have judged whether charging device access and charging, if the current signal of MCU1 sampling is non-vanishing, represent that then external charging module charges to external equipment, MCU1 control battery capacity indication lamp 3 is in the stroboscopic state of 1Hz frequency, and sample rate current signal and internal current protection reference voltage compared, if surpass this reference voltage, then MCU1 stops the work of external output module 6 by Enable Pin, prevents the excessive damage circuit of electric current; If do not receive above-mentioned sample rate current signal, then the MCU1 attonity.
The charge management module 9 of multi-functional working light is when the outside DC5V power supply of access, and described charge management module begins described LED illuminalive power-supply power source charges, and plays the effect of overcurrent protection.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection range of the present utility model.
Claims (4)
1. a multi-functional working light is characterized in that, described multi-functional working light comprises a MCU, a USB switch and one first resistance, a pin ground connection of described USB switch, and another pin of described USB switch links to each other with the control pin of described MCU; One end ground connection of described the first resistance, another termination one LED lighting tube of described the first resistance, a described end links to each other with the sampling pin of MCU; One battery capacity indication lamp links to each other with the control pin of described MCU, and described battery capacity indication lamp is comprised of a plurality of indication LED; Described USB switch is given described MCU one control signal, after described MCU receives described control signal, from described the first resistance sampling output current, and with a reference voltage relatively after, described MCU lights the indication LED of described battery capacity indication lamp based on described difference; When described USB switch disconnected, described MCU received a cut-off signals, makes described MCU be in holding state, and described battery capacity indication lamp is quit work.
2. multi-functional working light as claimed in claim 1 is characterized in that, described battery capacity indication lamp comprises one the one LED, one the 2nd LED and one the 3rd LED of dual base color, and described MCU control pin connects respectively a described LED, the 2nd LED and the 3rd LED;
When described difference voltage surpassed a first threshold voltage, described MCU controlled a described LED and is shown as the first color, and described the 2nd LED, the 3rd LED do not work; When described difference voltage surpassed a Second Threshold voltage, described MCU controlled a described LED and is shown as the second color, and described the 2nd LED, the 3rd LED do not work; When described difference voltage surpassed the 3rd threshold voltage, described MCU controlled described the 2nd LED and shows, and a described LED, the 3rd LED do not work; When described difference voltage surpassed the 4th threshold voltage, described MCU controlled described the 3rd LED and shows, and a described LED, the 2nd LED do not work.
3. multi-functional working light as claimed in claim 1, it is characterized in that, described multi-functional working light also comprises an external output module, the Enable Pin of described external output module links to each other with described MCU one control pin, and connect a LED illuminalive power-supply power supply at the input of described external output module, connect one second resistance at the output of described external output module; When described USB switch was given described MCU one enabling signal, described MCU activated the Enable Pin of described external output module by described control pin, externally charges from described LED illuminalive power-supply power supply; Described MCU is from described the second resistance sample rate current signal, if receive described current signal, described MCU enters holding state, if do not receive described current signal, described MCU makes described battery capacity indication lamp be in the stroboscopic state.
4. multi-functional working light as claimed in claim 3, it is characterized in that, described work light also comprises a charge management module, and the output of described charge management module directly is electrically connected with described LED illuminalive power-supply power supply, and the input of described charge management module connects a DC5V power supply; Described charge management module is described LED illuminalive power-supply power source charges by described DC5V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204981296U CN202818730U (en) | 2012-09-26 | 2012-09-26 | Multifunctional working lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204981296U CN202818730U (en) | 2012-09-26 | 2012-09-26 | Multifunctional working lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818730U true CN202818730U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204981296U Expired - Lifetime CN202818730U (en) | 2012-09-26 | 2012-09-26 | Multifunctional working lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649653A (en) * | 2018-06-08 | 2018-10-12 | 汉能移动能源控股集团有限公司 | Charging state indicating method, system, device and readable storage medium |
| CN114285150A (en) * | 2021-12-17 | 2022-04-05 | 南京沃科电子科技有限公司 | Vehicle-mounted power supply control power distribution cabinet state monitoring system |
-
2012
- 2012-09-26 CN CN2012204981296U patent/CN202818730U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649653A (en) * | 2018-06-08 | 2018-10-12 | 汉能移动能源控股集团有限公司 | Charging state indicating method, system, device and readable storage medium |
| CN114285150A (en) * | 2021-12-17 | 2022-04-05 | 南京沃科电子科技有限公司 | Vehicle-mounted power supply control power distribution cabinet state monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |