CN201535441U - Intrinsic safety induction type working lamp - Google Patents
Intrinsic safety induction type working lamp Download PDFInfo
- Publication number
- CN201535441U CN201535441U CN200920089159XU CN200920089159U CN201535441U CN 201535441 U CN201535441 U CN 201535441U CN 200920089159X U CN200920089159X U CN 200920089159XU CN 200920089159 U CN200920089159 U CN 200920089159U CN 201535441 U CN201535441 U CN 201535441U
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- charging
- lamp
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an intrinsic safety induction type working lamp belonging to the technical field of explosion-proof electrical equipment. The working lamp comprises an induction lamp and an explosion-proof charger seat separated from the induction lamp, wherein the induction lamp comprises an outer housing, a head cover and a bottom cover; the outer housing, the head cover and the bottom cover form a closed housing; an LED lamp, an explosion-proof circuit, a lithium battery and an induction charging coil are arranged in the housing; the LED lamp is positioned in the housing in a position below the head cover, and is connected with the explosion-proof circuit; the lithium battery is connected with the explosion-proof circuit for power supply; the induction charging coil is positioned in the bottom cover, connected with the explosion-proof circuit, and interacts with the alternating field of the explosion-proof charger seat; and the explosion-proof charger seat comprises a charger housing, a safety barrier power supply and the induction charging coil. With high explosion-proof grade, good safety performance, small volume, and high luminosity, the utility model can be applied to hazardous gas areas (zone 0, 1 and 2) with air mixed with possible combustible gases and vapors in the category of IIA, IIB, and IIC and the temperature class of T1 to T6.
Description
Technical field
The utility model belongs to the explosion-proof electrification technical field, is specifically related to a kind of intrinsic safety type induction type portable lamp.
Background technology
Explosion-proof portable lamp is a kind of portable lighting instrument that uses at dangerous place with a potential explosion, general adopt flame proof, increase type of explosion proof construc tion such as peace, the principle of these type of explosion proof construc tion is that live part all is enclosed in the airtight shell, forbid charged uncap, just in hazardous environment, forbid charging, their chargings the time are the charging modes that adopts power supply inserting in addition, and the charging that user's the problem such as aging that patches, patches the utmost point causes is bad, also exists to patch utmost point risk of short-circuits.This explosion-proof portable lamp can not contain H2, and acetylene uses in the breakneck gaseous environment such as SO2.Or say and can only use in the following part hazardous environment as IIA, IIB class, T1～T6 group imflammable gas, steam mix 1, the 2 district's explosion hazard areas that form to be used with air, and the general volume weight of this explosion-proof portable lamp is bigger, and light-emitting area is less, and the scope of application is restricted.
Summary of the invention
For solving the above-mentioned defective that prior art exists, the purpose of this utility model is to provide a kind of explosive-proof grade height, and security performance is good, and volume is little, luminosity height, the intrinsic safety type induction type portable lamp that can directly charge in the hazardous area.
For achieving the above object, the technical solution adopted in the utility model is: this intrinsic safety type induction type portable lamp, has sense light, it is characterized in that also having the explosion-proof charger seat that separates with sense light, described sense light has shell, skull and bottom, described shell, skull and bottom constitute an airtight housing, be provided with the LED lamp in the housing, intrinsically safe circuit, lithium battery and charging induction coil, the LED lamp is positioned at the housing of skull bottom, the LED lamp is connected with intrinsically safe circuit, lithium battery is connected power supply with intrinsically safe circuit, the charging induction coil is positioned at bottom, the charging induction coil is connected with intrinsically safe circuit, and charging induction coil and explosion-proof charger seat AC magnetic field interact, and described explosion-proof charger seat is by charger case, guard grating power supply circuit and charging induction coil are formed.
Described intrinsically safe circuit comprises charging circuit, rectification circuit, control circuit, battery circuit and LED circuit for lamp; Described charging circuit can induce the induction coil that exchanges low-voltage when being charging; Rectification circuit is the mu balanced circuit that two Zener diodes of the rectifier bridge formed of four diodes and electric capacity parallel connection constitute, and two Zener diodes of electric capacity parallel connection water to seal with electric capacity and are integral, for control circuit provides power supply; Control circuit is made up of capacitor, dichromatic LED and touch-switch that microprocessor, a plurality of small-power resistance, a plurality of summation are no more than 8uF, is used for controlling the work of charging interval and LED; Battery circuit is that lithium battery is connected with cement resistor and watered envelope and be the circuit of one; The LED circuit for lamp is the illuminating circuit of a plurality of LED lamp parallel connection.
Described guard grating power supply circuit is made up of 1 transformer, 2 fuses, 6 Zener diodes and 2 resistance, is placed on harbor, and described charging induction coil is placed on the hazardous area.
Be in series with between described charging circuit and the rectification circuit and prevent the diode D3 that the electricity on the lithium battery recharges and prevent the dead resistance R1 that the electric capacity both end voltage is too high.
Described housing is provided with the handle that can prevent that material that electrostatic charge is piled up from making, and its surface insulation resistance is less than 1G Ω.
Adopt the beneficial effect of technique scheme to be: this intrinsic safety type induction type portable lamp adopts inductive charging, and without any the electronic device that can contact, induced voltage is also lower in the lamp body outside, can directly charge more convenient, safety in the hazardous area.The charging of having avoided user's the problem such as aging that patches, patches the utmost point to cause simultaneously is bad, also can avoid patching utmost point risk of short-circuits.The operating circuit of sense light adopts the essential safe type principle to guarantee its security from essence, by to battery, the processing of circuit, make it meet the intrinsic safety type requirement of explosion, this type of explosion proof construc tion is the safest in explosion-proof technology, the technology that application places is the widest, can be used on and contain H2, acetylene, in the breakneck gaseous environment such as SO2, explosion-proof sign can reach Exia II CT6, promptly can be applied to exist and maybe may have IIA, IIB, the IIC class, T1～T6 organizes imflammable gas, steam mixes 0 of formation with air, 1,2 district's explosion hazard areas, and it requires lower to shell, overall volume is little, and is in light weight, carry lightly, can charge at any time.Lamp adopts a plurality of LED lamps simultaneously luminous, and the LED lamp can be up to 30, and brightness and area are all bigger.Other explosion-proof portable lamps generally can only use in above-mentioned part hazardous environment, and volume, and weight is bigger, and light-emitting area is less.
Description of drawings
Following structure accompanying drawing is described in further detail specific embodiment of the utility model.
Fig. 1 is an intrinsic safety type induction type portable lamp general structure schematic diagram.
Fig. 2 is the intrinsically safe circuit circuit block diagram.
Fig. 3 is the circuit diagram of intrinsic safety type induction type portable lamp.
Fig. 4 is the circuit diagram of control circuit.
Fig. 5 is the circuit diagram of explosion-proof charger seat
The specific embodiment
Intrinsic safety type induction type portable lamp as shown in Figure 1, 2, 3, the explosion-proof charger seat 9 that has shell 8, skull 1, bottom 6 and separate with sense light, shell, skull and bottom constitute an airtight housing, housing is provided with can be by hand-held handle, handle is made by the material that can prevent the electrostatic charge accumulation, and its surface insulation resistance is less than 1G Ω.Be provided with LED lamp 3, intrinsically safe circuit 4, lithium battery 2 and charging induction coil 7 in the housing, LED lamp 3 is positioned at the housing of skull 1 bottom, LED lamp 3 is connected with intrinsically safe circuit 4, lithium battery 2 is connected power supply with intrinsically safe circuit 4, charging induction coil 7 is positioned at bottom 6 and is connected with intrinsically safe circuit 4, explosion-proof charger seat interacts with charging induction coil AC magnetic field, thereby lithium battery 2 is charged.Described intrinsically safe circuit 4 comprises charging circuit, current rectifying and wave filtering circuit, control circuit and battery circuit and LED circuit for lamp.Charging circuit is the very little induction coil L of inductance value resistance, can induce the interchange low-voltage during charging, and carry out rectification and filtering by current rectifying and wave filtering circuit, current rectifying and wave filtering circuit is the rectifier bridge of four diode VD compositions and two voltage stabilizings, two utmost point D1 of capacitor C 1 parallel connection, the mu balanced circuit that D2 constitutes, rectifier bridge output is in series with diode D3 and wire resistor R1, wire resistor R1 output connects capacitor C 1 filtering, voltage stabilizing two utmost point D1, the D2 voltage stabilizing, electricity when diode D3 finishes to prevent to charge on the lithium battery recharges induction coil L, wire resistor R1 consumes part voltage, make the voltage at capacitor C 1 two ends be in state always, prevent that overtension from setting off an explosion less than 7.1V.After voltage one routing resistance R1 behind the filtering voltage regulation, the R2 dividing potential drop in the input control circuit on the micro processor leg, another road directly connects in the control loop, one the tunnel connecing lithium pond positive pole through triode Q1 and charge as charge circuit again, is that integral body is watered seal structure through capacitor C 1 and two Zener diode D1, D2 in parallel with it.Control circuit as shown in Figure 4 is made up of capacitor, dichromatic LED and touch-switch that microprocessor, a plurality of small-power resistance, a plurality of summation are no more than 8uF, is used for controlling the work of charging interval and LED; Battery circuit is that nominal voltage is that the lithium battery 2 of 3.7V is connected with cement resistor R4 and watered envelope for the circuit of one, works as battery short circuit, and excessive current drain is on cement resistor, and unlikely generation spark sets off an explosion.The LED circuit for lamp is in parallel simultaneously luminous up to 30 LED lamps, and brightness and area are all bigger.As shown in Figure 5, the explosion-proof charger seat 9 that separates with sense light is made up of charger case 10, guard grating power supply circuit 11, charging induction coil L1.Guard grating power supply circuit 11 is made up of 1 transformer, 2 fuses, 6 Zener diodes, 2 resistance, be placed on harbor, the alternating current 220V AC signal of being come by external circuit becomes 12VAC by transformer, by the resistance current limliting, again by the fuse current limliting, by the diode pressure limiting, the energy that arrives charging induction coil L1 in the hazardous area is safe, so the type of explosion proof construc tion of charger seat also is an intrinsic safety again.
The sense light charging process is as follows: at first explosion-proof charger seated connection is gone into power supply, sense light is vertically put into cradle, the AC magnetic field of coil interacts in induction coil on the sense light interior circuit board and the cradle, the sense light interior loop induces the alternating current of voltage smaller or equal to 6V, after inducing voltage, through the VD rectification, output dc voltage by capacitor C 1 filtering, connects anode through triode Q1 and charges as charge circuit behind diode D3, wire resistor R1.Crossing low then microprocessor control LED lamp when capacitor C 1 terminal voltage coruscates, the expression brownout needs charging, microprocessor control dichromatic LED sends red light when charging, expression is charged, when being full of electricity, microprocessor control diode glow green, expression is full of electricity, and charge circuit comes turn-on and turn-off by the base stage of microprocessor control triode Q1.Microprocessor obtains a signal when touch-switch SW1 closes then, and control Q2 and Q3 conducting make lithium battery power to the LED lamp by Q3, the work of LED lamp.On the contrary, when SW1 gives cut-off signals of microprocessor, then microprocessor control Q3 turn-offs, and the LED lamp quits work.
Claims (5)
1. intrinsic safety type induction type portable lamp, has sense light, it is characterized in that also having the explosion-proof charger seat that separates with sense light, described sense light has shell, skull and bottom, described shell, skull and bottom constitute an airtight housing, be provided with the LED lamp in the housing, intrinsically safe circuit, lithium battery and charging induction coil, the LED lamp is positioned at the housing of skull bottom, the LED lamp is connected with intrinsically safe circuit, lithium battery is connected power supply with intrinsically safe circuit, the charging induction coil is positioned at bottom, and the charging induction coil is connected with intrinsically safe circuit, and charging induction coil and explosion-proof charger seat AC magnetic field interact; Described explosion-proof charger seat is made of charger case, guard grating power supply and charging induction coil.
2. intrinsic safety type induction type portable lamp according to claim 1 is characterized in that: described intrinsically safe circuit comprises charging circuit, rectification circuit, control circuit and battery circuit and LED circuit for lamp; Described charging circuit can induce the induction coil that exchanges low-voltage when being charging; Rectification circuit is the mu balanced circuit that two Zener diodes of the rectifier bridge formed of four diodes and electric capacity parallel connection constitute, and two Zener diodes of electric capacity parallel connection are that integral body is watered seal structure, for control circuit provides power supply; Control circuit is made up of capacitor, dichromatic LED and touch-switch that microprocessor, a plurality of small-power resistance, a plurality of summation are no more than 8uF, is used for controlling the work of charging interval and LED; Battery circuit is that lithium battery is connected with cement resistor and watered envelope and be the circuit of one; The LED circuit for lamp is the illuminating circuit of a plurality of LED lamp parallel connection.
3. intrinsic safety type induction type portable lamp according to claim 1, it is characterized in that: described guard grating power supply circuit is made up of 1 transformer, 2 fuses, 6 Zener diodes and 2 resistance, be placed on harbor, described charging induction coil is placed on the hazardous area.
4. intrinsic safety type induction type portable lamp according to claim 2 is characterized in that: be in series with the resistance that prevents the diode that the electricity on the lithium battery recharges and prevent to puncture electric capacity between described charging circuit and the rectification circuit.
5. intrinsic safety type induction type portable lamp according to claim 1 is characterized in that: described housing is provided with the handle that prevents that material that electrostatic charge is piled up from making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920089159XU CN201535441U (en) | 2009-03-25 | 2009-03-25 | Intrinsic safety induction type working lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920089159XU CN201535441U (en) | 2009-03-25 | 2009-03-25 | Intrinsic safety induction type working lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535441U true CN201535441U (en) | 2010-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920089159XU Expired - Fee Related CN201535441U (en) | 2009-03-25 | 2009-03-25 | Intrinsic safety induction type working lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535441U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057343A1 (en) | 2009-11-16 | 2011-05-19 | 300K Enterprises Pty Ltd | Contactless coupling and method for use with an electrical appliance |
| CN102595814A (en) * | 2012-02-07 | 2012-07-18 | 博山中美防爆电机电器有限公司 | Electrical appliance for zone 0 in hazardous area |
| CN107872926A (en) * | 2017-10-27 | 2018-04-03 | 温州市洞头立德电子有限公司 | A kind of circuit board with lighting function |
-
2009
- 2009-03-25 CN CN200920089159XU patent/CN201535441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057343A1 (en) | 2009-11-16 | 2011-05-19 | 300K Enterprises Pty Ltd | Contactless coupling and method for use with an electrical appliance |
| CN102595814A (en) * | 2012-02-07 | 2012-07-18 | 博山中美防爆电机电器有限公司 | Electrical appliance for zone 0 in hazardous area |
| CN107872926A (en) * | 2017-10-27 | 2018-04-03 | 温州市洞头立德电子有限公司 | A kind of circuit board with lighting function |
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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: 20100728 Termination date: 20150325 |
|
| EXPY | Termination of patent right or utility model |