CN211089185U - Flashlight and control device thereof - Google Patents
Flashlight and control device thereof Download PDFInfo
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- CN211089185U CN211089185U CN201922313144.3U CN201922313144U CN211089185U CN 211089185 U CN211089185 U CN 211089185U CN 201922313144 U CN201922313144 U CN 201922313144U CN 211089185 U CN211089185 U CN 211089185U
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Abstract
The utility model relates to a flashlight field, concretely relates to flashlight and controlling means thereof. The control circuit is also connected with a charging interface, the control device also comprises a control switch and a normally-off on-off switch which are arranged between the control circuit and the battery bin and are connected in parallel, and a driving circuit which drives an on-off switch channel and is connected with the control circuit; the control circuit comprises a control chip which sends a control signal to the driving circuit to drive the on-off switch to be switched on and off after detecting that the charging interface is connected with the high voltage. The beneficial effects of the utility model reside in that, compared with the prior art, the utility model discloses a controlling means of flashlight, when the flashlight charges, the charging circuit control channel is opened in automatic setting, need not press the tactics switch and can charge, improves the convenience of charging, has solved flashlight and has inserted and must press control switch when the charger and just can charge this problem, realizes filling the function promptly plug, and whole cost is little, simple structure.
Description
Technical Field
The utility model relates to a flashlight field, concretely relates to flashlight and controlling means thereof.
Background
A flashlight is a hand-held electronic lighting tool, a typical flashlight having a bulb and focusing reflector powered by a battery, and a handle-type housing for hand-holding. In particular to a flashlight of a tactical switch, the tactical switch can be turned on when pressed and can not be turned on when not pressed, and the flashlight is special for tactical use.
At present, a rechargeable flashlight is available in the market, a neck USB interface has a charging function, a tail tactical on/off function and a neck electronic switch mode switching function, a charger is not connected, a tactical switch is pressed, L ED light sources can be lightened, the flashlight cannot be charged when the tactical switch is not pressed after the charger is connected, the flashlight can be charged only by pressing the tail tactical switch, the charger cannot be used for plug-and-play charging, the charging process is complex in operation, and the electric quantity of a battery is insufficient due to the fact that the tail tactical switch is forgotten to be pressed after the charger is connected.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a flashlight and controlling means thereof, solved the flashlight and inserted the problem that the charger time must press control switch could charge.
The utility model provides a technical scheme that its technical problem adopted is: the control device of the flashlight comprises a battery compartment, a control circuit, a control switch, a normally-off on-off switch and a driving circuit, wherein the control circuit is respectively connected with two electrodes of the battery compartment; the control circuit comprises a control chip which sends a control signal to the driving circuit to drive the on-off switch to be switched on and off after detecting that the charging interface is connected with the high voltage.
Wherein, the preferred scheme is: the on-off switch is a switch MOS tube, a D pole and an S pole of the on-off switch are respectively connected with the control circuit and the battery bin, the drive circuit is a charge pump circuit, the charge pump circuit is respectively connected with a G pole of the switch MOS tube and a control output end of the control chip, the control chip charges the charge pump circuit through the control output end after detecting that an electrical interface is connected with high voltage, and the charge pump circuit generates on-state voltage for the G pole of the switch MOS tube to enable the switch MOS tube to be switched on.
Wherein, the preferred scheme is: the charge pump circuit comprises a first capacitor connected with the control output end of the control chip, a first voltage stabilizing diode arranged between the first capacitor and the G pole of the switch MOS tube, and a second capacitor and a second voltage stabilizing diode connected with the first voltage stabilizing diode in parallel, wherein the cathode of the first voltage stabilizing diode, the second capacitor and the G pole of the switch MOS tube are connected with each other to form a node, and the cathode of the second voltage stabilizing diode is connected with the first capacitor; the control output end of the control chip generates a square wave signal to the first capacitor.
Wherein, the preferred scheme is: the switch MOS tube is respectively connected with the control circuit and the second electrode of the battery cabin, and the second capacitor, the anode of the second voltage stabilizing diode and the second electrode of the battery cabin are mutually connected to form a node; and a resistor is connected in series between the G pole of the switch MOS tube and the second electrode of the battery bin.
Wherein, the preferred scheme is: and a resistor is connected in series between the control output end of the control chip and the first capacitor.
Wherein, the preferred scheme is: the switch MOS tube is an NMOS.
Wherein, the preferred scheme is: the control circuit further comprises a Vusb end connected with the positive electrode of the charging interface, a resistor is connected between the Vusb end and the detection end of the control chip in series, and the detection end of the control chip is also connected with a pull-down resistor; the input end of the charging chip is connected with the Vusb end, and the output end of the charging chip is connected with the first electrode of the battery bin; and the control circuit is grounded with the control switch or the on-off switch and is connected with the second electrode of the battery compartment through the control switch or the on-off switch.
Wherein, the preferred scheme is: the control circuit is connected with the control switch or the on-off switch through a first conductor, and is connected with the driving circuit through a second conductor; and the first conductor is an outer cylinder body, and the second conductor is an inner cylinder body.
Wherein, the preferred scheme is: the control circuit is connected with the negative electrode of the battery bin through the control switch or the on-off switch.
The utility model provides a technical scheme that its technical problem adopted is: the flashlight comprises a flashlight body and a control device, wherein the flashlight body comprises a barrel body for accommodating a battery bin, a barrel head and a tail barrel which are arranged in front of and behind the barrel body, and a lamp arranged on the barrel head, the control switch, the on-off switch and the driving circuit are arranged at the tail barrel, and the control circuit is arranged at the barrel head.
The beneficial effects of the utility model reside in that, compared with the prior art, the utility model discloses a controlling means of flashlight, when the flashlight charges, the charging circuit control channel is opened in automatic setting, need not press the tactics switch and can charge, improves the convenience of charging, has solved flashlight and has inserted and must press control switch when the charger and just can charge this problem, realizes filling the function promptly plug, and whole cost is little, simple structure.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of the control device of the present invention;
FIG. 2 is a schematic structural diagram of a control device of the present invention, in which the on-off switch is a switch MOS tube;
fig. 3 is a schematic structural diagram of the charge pump circuit of the present invention;
fig. 4 is a schematic circuit diagram of the charging interface and the charging chip of the present invention;
fig. 5 is a schematic circuit diagram of the control chip of the present invention;
fig. 6 is a schematic structural diagram of the flashlight of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a preferred embodiment of a control device for a flashlight.
A control device of a flashlight comprises a battery compartment 100, the control device comprises a control circuit 200 respectively connected with two electrodes of the battery compartment 100, the control circuit 200 is further connected with a charging interface 210, the control device further comprises a control switch 310 and a normally-off on-off switch 320 which are arranged between the control circuit 200 and the battery compartment 100 and connected in parallel, and a driving circuit 400 which drives the on-off switch 320 to be on and is connected with the control circuit 200; the control circuit 200 includes a control chip 220 that sends a control signal to the driving circuit 400 to drive the on/off switch 320 to be turned on after detecting that the charging interface 210 is connected to the high voltage.
Specifically, the battery compartment 100 is installed with a battery 110 for controlling the flashlight, and the control circuit 200 is connected to the flashlight lamp for controlling the switch, control mode, color change or color temperature of the flashlight lamp. In a normal working state, the charging interface 210 is not charged, so that the control switch 310 is closed, the control circuit 200, the control switch 310 and the battery 110 form a power supply loop, and the battery 110 supplies power to the control circuit 200 to control the flashlight lamp; in the off state, and the charging interface 210 is not charged, the control switch 310 is turned off, and the battery 110 is disconnected; in a normal working state, the charging interface 210 is inserted for charging, so that the control switch 310 is closed, the charging interface 210, the control circuit 200, the control switch 310 and the battery 110 form a charging loop, and the battery 110 is charged through the charging interface 210; when the charging interface 210 is in a closed state and is inserted for charging, the control chip 220 sends a control signal to the driving circuit 400 to drive the on-off switch 320 to be switched on after detecting that the charging interface 210 is connected with high voltage, the charging interface 210, the control circuit 200, the on-off switch 320 and the battery 110 form a charging loop, and the battery 110 is charged through the charging interface 210. Among them, the charging interface 210 is preferably a Type-C charging interface.
And a first electrode of the battery compartment 100 is connected with the control circuit 200, and a second electrode thereof is connected with the control switch 310 or the on-off switch 320, preferably, the first electrode is a positive electrode, and the second electrode is a negative electrode. In a normal working state, the charging interface 210 is not charged in an inserted manner, and the control circuit 200, the control switch 310, the negative electrode of the battery 110, the battery 110 and the positive electrode of the battery 110 are connected to form a power supply loop; in a normal working state, the charging interface 210 is inserted for charging, and the positive pole of the charging interface 210, the control circuit 200, the positive pole of the battery 110, the negative pole of the battery 110, the control switch 310, the control circuit 200 and the negative pole of the charging interface 210 form a charging loop; when the charging interface 210 is in the closed state, the positive electrode of the charging interface 210, the control circuit 200, the positive electrode of the battery 110, the negative electrode of the battery 110, the on-off switch 320, the control circuit 200 and the negative electrode of the charging interface 210 form a charging loop.
As shown in fig. 2 and 3, the present invention provides a preferred embodiment of an on/off switch and drive circuit.
The on-off switch 320 is a switch MOS tube Q1, and its D utmost point and S utmost point are connected with control circuit 200 and battery compartment 100 respectively, drive circuit 400 is charge pump circuit, charge pump circuit is connected with switch MOS tube Q1 ' S the G utmost point and control chip 220 ' S control output respectively, control chip 220 charges for charge pump circuit through the control output after detecting the electrical interface and inserting high voltage, just charge pump circuit produces the voltage that switches on for switch MOS tube Q1 ' S the G utmost point, makes switch MOS tube Q1 switch on.
Specifically, the D pole of the switching MOS transistor Q1 is connected to the control circuit 200, the S pole thereof is connected to the second pole of the battery compartment 100, the G pole of the switching MOS transistor Q1 is connected through the charge pump circuit, and a high level is provided for the G pole of the switching MOS transistor Q1 through the charging and discharging operations of the charge pump circuit, so that the switching MOS transistor Q1 is turned on, that is, the control circuit 200 is connected to the second pole of the battery compartment 100, and the control chip 220 charges the charge pump circuit through the control output terminal after detecting that the electrical interface is connected to a high voltage. Among them, the charge pump, also called a switched capacitor voltage converter, is a DC-DC (converter) that stores energy by using a so-called "flying" or "pumping" capacitor (instead of an inductor or a transformer), and the electrical efficiency of the charge pump circuit is high, about 90-95%, and the circuit is quite simple.
In the present embodiment, and referring to fig. 3, the charge pump circuit includes a first capacitor C1 connected to the control output terminal of the control chip 220, a first zener diode D1 disposed between the first capacitor C1 and the G pole of the switching MOS transistor Q1, a second capacitor C2 and a second zener diode D2 connected in parallel with the first zener diode D1, the cathode of the first zener diode D1, the second capacitor C2 and the G pole of the switching MOS transistor Q1 are connected to each other to form a node, and the cathode of the second zener diode D2 is connected to the first capacitor C1; the control output terminal of the control chip 220 generates a square wave signal to the first capacitor C1. Specifically, a square wave signal is generated to the first capacitor C1 through the control output terminal of the control chip 220, so that the first capacitor C1 generates a pulse signal at the first zener diode D1 and the second zener diode D2, the second capacitor C2 is charged, the second capacitor C2 generates a high voltage at the G pole of the switching MOS Q1, so as to provide the high voltage to the G pole of the switching MOS Q1, so that the switching MOS Q1 is turned on, the first zener diode D1 and the second zener diode D2 function to enable the pulse signal to flow in the same direction, charge the second capacitor C2, and prevent reverse flow, so as to cooperate with generation of the charge pump.
Furthermore, the switching MOS transistor Q1 is respectively connected to the control circuit 200 and the second electrode of the battery compartment 100, and the anodes of the second capacitor C2 and the second zener diode D2 are connected to the second electrode of the battery compartment 100 to form a node, so that one end of the second capacitor C2 is grounded after the switching MOS transistor Q1 is turned on, and the high voltage of the second capacitor C2 at the G pole of the switching MOS transistor Q1 is maintained.
Further, a resistor R1 is connected in series between the G pole of the switching MOS transistor Q1 and the second electrode of the battery compartment 100, so as to block the current, thereby turning off the NMOS transistor. And a resistor R2 is connected in series between the control output terminal of the control chip 220 and the first capacitor C1, because a switch can be arranged between the second electrode of the battery compartment 100 and the control chip 220, corresponding control is realized, and the resistor R2 prevents the switch from being pressed and then short-circuited.
In this embodiment, the switching MOS transistor Q1 is an NMOS. Because the on-resistance of the NMOS is only 9m omega, the voltage drop generated on the NMOS by the charging loop can be ignored, and the battery 110 can directly achieve the rated requirement of full charging voltage without voltage compensation by the charging mode.
As shown in fig. 4 and 5, the present invention provides a preferred embodiment of the control circuit.
The control circuit 200 further includes a Vusb terminal connected to the positive electrode of the charging interface 210, a resistor R3 is connected in series between the Vusb terminal and the detection terminal of the control chip 220, and the detection terminal of the control chip 220 is further connected to a pull-down resistor R4; the control circuit 200 further includes a charging chip 230, an input end of the charging chip 230 is connected to the Vusb end, and an output end of the charging chip 230 is connected to the first electrode of the battery compartment 100; and the control circuit 200 is grounded with the control switch 310 or the on-off switch 320, and is connected with the second electrode of the battery compartment 100 through the control switch 310 or the on-off switch 320.
First, the charging voltage received by the charging interface 210 is processed by the charging chip 230 and output to the first electrode (i.e. the positive electrode BAT +) of the battery 110 of the battery compartment 100, so as to form a charging loop for charging the battery 110 in the battery compartment 100. Meanwhile, the Vusb terminal inputs the detection current outputted through the resistor R3 and the pull-down resistor R4 into the detection terminal (USBDET) of the control chip 220, and when the control chip 220 detects the current signal, sends a control signal to the driving circuit 400 to drive the on-off switch 320 to turn on.
As shown in fig. 6, the present invention provides a preferred embodiment of the first and second electrical conductors.
The control circuit 200 is connected with the control switch 310 or the on-off switch 320 through a first conductor 510, and is connected with the driving circuit 400 through a second conductor 520; the first conductor 510 is an outer cylinder, and the second conductor 520 is an inner cylinder.
Specifically, a flashlight scheme is provided, including the flashlight body and controlling means, the flashlight body is including the stack shell that holds battery compartment 100 to and barrel head and the tail section of thick bamboo 10 of setting around the stack shell, and set up lamp 20 on the barrel head, control switch 310, on-off switch 320, drive circuit 400 set up in tail section of thick bamboo 10 department, and control switch 310 preferably sets up the terminal surface at tail section of thick bamboo 10 to realize on-off control, control circuit 200 sets up in the barrel head department, with the power supply circuit who forms control lamp 20, or form the charging circuit that charges for battery 110.
The control switch 310 is preferably a tactical switch of the tail cylinder 10, which is a normally closed or normally open switch.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is intended to cover all equivalent changes and modifications made within the scope of the present invention.
Claims (10)
1. The utility model provides a controlling means of flashlight, flashlight include the battery compartment, controlling means includes the control circuit who is connected with battery compartment two electrodes respectively, control circuit still with the interface connection that charges, its characterized in that: the control device also comprises a control switch and a normally-off on-off switch which are arranged between the control circuit and the battery bin and connected in parallel, and a driving circuit which drives an on-off switch path and is connected with the control circuit; the control circuit comprises a control chip which sends a control signal to the driving circuit to drive the on-off switch to be switched on and off after detecting that the charging interface is connected with the high voltage.
2. The control device according to claim 1, characterized in that: the on-off switch is a switch MOS tube, a D pole and an S pole of the on-off switch are respectively connected with the control circuit and the battery bin, the drive circuit is a charge pump circuit, the charge pump circuit is respectively connected with a G pole of the switch MOS tube and a control output end of the control chip, the control chip charges the charge pump circuit through the control output end after detecting that an electrical interface is connected with high voltage, and the charge pump circuit generates on-state voltage for the G pole of the switch MOS tube to enable the switch MOS tube to be switched on.
3. The control device according to claim 2, characterized in that: the charge pump circuit comprises a first capacitor connected with the control output end of the control chip, a first voltage stabilizing diode arranged between the first capacitor and the G pole of the switch MOS tube, and a second capacitor and a second voltage stabilizing diode connected with the first voltage stabilizing diode in parallel, wherein the cathode of the first voltage stabilizing diode, the second capacitor and the G pole of the switch MOS tube are connected with each other to form a node, and the cathode of the second voltage stabilizing diode is connected with the first capacitor; the control output end of the control chip generates a square wave signal to the first capacitor.
4. The control device according to claim 3, characterized in that: the switch MOS tube is respectively connected with the control circuit and the second electrode of the battery cabin, and the second capacitor, the anode of the second voltage stabilizing diode and the second electrode of the battery cabin are mutually connected to form a node; and a resistor is connected in series between the G pole of the switch MOS tube and the second electrode of the battery bin.
5. The control device according to claim 3, characterized in that: and a resistor is connected in series between the control output end of the control chip and the first capacitor.
6. The control device according to claim 2, characterized in that: the switch MOS tube is an NMOS.
7. The control device according to claim 1, characterized in that: the control circuit further comprises a Vusb end connected with the positive electrode of the charging interface, a resistor is connected between the Vusb end and the detection end of the control chip in series, and the detection end of the control chip is also connected with a pull-down resistor; the input end of the charging chip is connected with the Vusb end, and the output end of the charging chip is connected with the first electrode of the battery bin; and the control circuit is grounded with the control switch or the on-off switch and is connected with the second electrode of the battery compartment through the control switch or the on-off switch.
8. The control device according to any one of claims 1 to 7, characterized in that: the control circuit is connected with the control switch or the on-off switch through a first conductor, and is connected with the driving circuit through a second conductor; and the first conductor is an outer cylinder body, and the second conductor is an inner cylinder body.
9. The control device according to any one of claims 1 to 7, characterized in that: the control circuit is connected with the negative electrode of the battery bin through the control switch or the on-off switch.
10. A flashlight, characterized by: the flashlight comprises a flashlight body and a control device as claimed in any one of claims 1 to 9, wherein the flashlight body comprises a barrel body for accommodating a battery bin, a barrel head and a tail barrel which are arranged in front of and behind the barrel body, and a lamp arranged on the barrel head, the control switch, the on-off switch and the drive circuit are arranged at the tail barrel, and the control circuit is arranged at the barrel head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313144.3U CN211089185U (en) | 2019-12-20 | 2019-12-20 | Flashlight and control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313144.3U CN211089185U (en) | 2019-12-20 | 2019-12-20 | Flashlight and control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211089185U true CN211089185U (en) | 2020-07-24 |
Family
ID=71625138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922313144.3U Active CN211089185U (en) | 2019-12-20 | 2019-12-20 | Flashlight and control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211089185U (en) |
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2019
- 2019-12-20 CN CN201922313144.3U patent/CN211089185U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 2 / F and 3 / F, west side of building a, Xinghong science and Technology Park, 111 Reservoir Road, fenghuanggang community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen langheng Lighting Technology Co.,Ltd. Address before: 518000 Eighth Floor, 2 Chunggu Building, Meisheng Huigu Science Park, 83 Dabao Road, 33 Shanghe Community, Baoan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN LANGHENG ELECTRICAL Co.,Ltd. |
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| CP03 | Change of name, title or address |