CN203883526U - Intrinsic safety battery and explosion-proof video camera - Google Patents
Intrinsic safety battery and explosion-proof video camera Download PDFInfo
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- CN203883526U CN203883526U CN201420263639.4U CN201420263639U CN203883526U CN 203883526 U CN203883526 U CN 203883526U CN 201420263639 U CN201420263639 U CN 201420263639U CN 203883526 U CN203883526 U CN 203883526U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 4
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- 238000010892 electric spark Methods 0.000 description 7
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Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an intrinsic safety battery and an explosion-proof video camera. The intrinsic safety battery comprises an outer shell, a cell group, a working circuit board, a positive electrode contact, a negative electrode contact and an intrinsic safety circuit board, wherein the positive electrode contact and the negative electrode contact are arranged on the outer shell, the cell group and the working circuit board are arranged inside the outer shell, the cell group is connected with the positive electrode contact and the negative electrode contact through the working circuit board, the outer shell forms a mounting part, the intrinsic safety circuit board is arranged inside the outer shell, and the working circuit board is connected with the intrinsic safety circuit board and connected with the positive electrode contact and the negative electrode contact through the intrinsic safety circuit board. The explosion-proof video camera adopting the intrinsic safety battery has the advantages of having good explosion-proof effect, being small in size and light in weight, being integrated with the intrinsic safety battery, and being easy to carry.
Description
Technical field
The utility model relates to intrinsic safe battery and explosion-proof electronic apparatus field, relates in particular to a kind of intrinsic safe battery and explosion-proof video camera.
Background technology
In order to realize, exist flammable explosive gas hazardous environment can use electronic equipment and safety photography safely, meet the dangerous material manufacturing enterprises such as colliery, oil, chemical industry, pharmacy, military project and Work Safety Supervision Bureau, Supervisor Bureau of Coal, marine board, the fire-fighting safety manufacture supervising object of government organs such as speedily carry out rescue work, Portable explosion-proof video camera is an important research topic, and one of part of most critical is intrinsic safe battery in explosion-proof video camera, thereby realize, at above-mentioned hazardous environment, make a video recording safely.
At present, due to existing intrinsic safe battery ubiquity battery is heavy, volume is large, explosion-proof performance is limited problem.Simultaneously existing explosion-proof video camera, all adopts split-type structural design, and video camera separates with power supply, must use a cable to connect respectively intrinsic safe battery and explosion-proof video camera is powered; The intrinsic safe battery both positive and negative polarity supporting with explosion-proof camera can not be original with explosion-proof video camera power supply both positive and negative polarity directly contact power supply; The intrinsic safe battery supporting with explosion-proof video camera cannot directly be installed on explosion-proof video camera; This power supply is an independently individuality, when power supply is given explosion-proof digital camera power supply, must use an electrical cables to connect respectively intrinsic safe battery and explosion-proof video camera; And with the supporting intrinsic safe battery heavy weight of explosion-proof video camera, volume large (2.2kg left and right), needs user of service to wear in addition annex (carrying as used knapsack) during use, be unfavorable for daily portable use.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of intrinsic safe battery and explosion-proof video camera are provided, and has explosion-proof effect good, and volume is little, lightweight, intrinsic safe battery and integrated, the portable advantage of video camera.
The technical scheme that realizes above-mentioned purpose is:
A kind of intrinsic safe battery of the present utility model, comprise a shell, battery core group, one operating circuit plate, one anodal contact and a negative pole contact, described anodal contact and described negative pole contact are arranged on described shell, described battery core group and described operating circuit plate are arranged in described shell and described battery core group is connected described anodal contact and described negative pole contact by described operating circuit plate, described shell forms installation portion, also comprise an intrinsically safe circuit plate, described intrinsically safe circuit plate is arranged in described shell, described operating circuit plate connects described intrinsically safe circuit plate and connects described anodal contact and described negative pole contact by described intrinsically safe circuit plate.
Further improvement of the utility model is, described shell forms a both positive and negative polarity interface, and described both positive and negative polarity interface comprises a plurality of draw-in grooves that are formed at described shell one end; Described anodal contact and described negative pole contact are arranged at respectively in described draw-in groove.
Further improvement of the utility model is, described battery core group comprises a plurality of battery cores, the connection parallel with one another of described battery core.
Further improvement of the utility model is, comprises a plurality of described battery core groups, and described battery core group is connected mutually.
Further improvement of the utility model is, the energy-accumulating medium employing lithium battery of described battery core.
Further improvement of the utility model is, space between described shell, described battery core group, described operating circuit plate and described intrinsically safe circuit plate is filled insulating cement and is formed and water sealing, and described in to water sealing sealed envelope outside in described battery core group, described operating circuit plate and described intrinsically safe circuit plate.
Further improvement of the utility model is, described intrinsically safe circuit plate surface-coated has insulating barrier.
Further improvement of the utility model is, described intrinsically safe circuit plate comprises a substrate and be arranged at the intrinsically safe circuit on described substrate, and described intrinsically safe circuit comprises an input, an output, an anode link, a battery cathode link, a switching circuit and a control circuit; Described switching circuit is connected between described output and described input, described control circuit connects described switching circuit and controls the turn-on and turn-off of described switching circuit, described output connects described anodal contact, described input connects described negative pole contact, and it is anodal that described anode link connects described battery core group by described operating circuit plate; Described battery cathode link connects described battery core group negative pole by described operating circuit plate.
Further improvement of the utility model is, described switching circuit comprises at least two first switching devices, and described the first switching device comprises respectively two metal-oxide-semiconductors; The grid of the metal-oxide-semiconductor of described the first switching device connects described control circuit;
Two metal-oxide-semiconductor grids parallel connections of described the first switching device also connect described anode link by one first resistance;
The drain electrode of two metal-oxide-semiconductors of last the first switch member source electrode in parallel and that connect two metal-oxide-semiconductor parallel connections of next the first switch member forms a queue;
Be positioned at the source electrode of two metal-oxide-semiconductors of the first switch member of described queue stem in parallel and connect described battery cathode link by a sampling resistor;
The drain electrode of two metal-oxide-semiconductors that is positioned at the first switch member of the described queue afterbody described input that is connected in parallel.
Further improvement of the utility model is, described control circuit comprises a second switch device and the triode identical with described the first switching device number; Described second switch device comprises the metal-oxide-semiconductor identical with the first switching device number; The source ground of the metal-oxide-semiconductor of described second switch device, each metal-oxide-semiconductor of described second switch device is connected in the grid of the metal-oxide-semiconductor of corresponding the first switch member by drain electrode, the grid of each metal-oxide-semiconductor of described second switch device is connected in the drain electrode of two metal-oxide-semiconductor parallel connections of the first switching device described in one and is passed through one the 3rd grounding through resistance by one second resistance;
Described triode is in parallel with described battery core group, and described in each, triode is connected in the grid of corresponding the first switching device metal-oxide-semiconductor and is connected described anode link by described the first resistance by collector electrode; The emitter of described triode connects respectively described battery cathode link and ground connection; Described in each, the base stage of triode is connected to the source electrode of two metal-oxide-semiconductor parallel connections of the first switch member that is positioned at described queue stem by one the 4th resistance.
Further improvement of the utility model is, described intrinsically safe circuit also comprises two diodes, and described diode one end connects the drain electrode of two metal-oxide-semiconductor parallel connections of the first switch member that is positioned at described queue afterbody, described diode other end ground connection.
Further improvement of the utility model is, described the first resistance comprises the sub-resistance of a plurality of connections parallel with one another.
Further improvement of the utility model is, described installation portion is the slot that described shell both sides are recessed to form respectively.
Further improvement of the utility model is, the top board of described slot forms a plurality of recesses along described slot length direction interval.
Further improvement of the utility model is, described both positive and negative polarity interface also comprises the groove that is formed at described draw-in groove both sides.
A kind of explosion-proof video camera based on a kind of intrinsic safe battery described in the utility model of the present utility model, comprise a camera body, described camera body forms the battery mounting groove coordinating with described installation portion, in described battery mounting groove, be provided with a battery interface, described intrinsic safe battery is directly plugged and is installed on described camera body by described installation portion, described both positive and negative polarity interface connects described battery interface simultaneously, and described anodal contact contacts with described negative pole contact an internal circuit that is connected in described camera body.
Further improvement of the utility model is, described battery interface comprises a plurality of protruding touching, described protruding touch to be inserted in respectively in described draw-in groove and be respectively connected with described negative pole contact contact with described anodal contact.
Further improvement of the utility model is, the described protruding tactile column that is.
The utility model has been owing to having adopted above technical scheme, makes it have following beneficial effect to be:
The employing of intrinsically safe circuit plate has realized the control to operating current, power, electric capacity etc.; and realized the protection of current overload and short-circuit conditions when intrinsic safe battery is connected to load; while having avoided explosion-proof video camera work, produce electric spark and localized hyperthermia, guaranteed the explosion-proof performance of intrinsic safe battery and explosion-proof video camera.The structure of battery core connection parallel with one another and the series connection of battery core group, makes intrinsic safe battery on the basis that video camera steady job voltage is provided, increase substantially the accumulate capacity of intrinsic safe battery, and rationally utilizes space to reduce the overall volume of intrinsic safe battery.The energy-accumulating medium of battery core adopts lithium battery, has significantly improved the accumulate capacity of battery unit volume, thereby has realized on the basis of assurance intrinsic safe battery accumulate capacity abundance, significantly reduces the volume of intrinsic safe battery, and has significantly alleviated the weight of intrinsic safe battery.And energy-accumulating medium and battery core are parallel with one another and the cooperation of battery core group cascaded structure, further dwindled the volume of intrinsic safe battery, make intrinsic safe battery can directly be installed on explosion-proof video camera, realize the integrated of intrinsic safe battery and explosion-proof video camera, made intrinsic safe battery and explosion-proof video camera be more convenient for carrying.Installation portion adopts slot, makes the intrinsic safe battery can installation and removal easily on video camera.Along slot length direction interval, form the contact area that a plurality of recesses have reduced intrinsic safe battery slot top board and video camera battery mounting groove, the frictional force while having reduced intrinsic safe battery is installed, thus make intrinsic safe battery can plug more quickly and easily installation.The employing of the groove of draw-in groove both sides has alleviated the impact of expanding with heat and contract with cold draw-in groove being produced, and has guaranteed that protruding touching with effective contact of both positive and negative polarity contact in draw-in groove is connected.Protruding touching is the resistance that column has reduced protruding tactile insertion draw-in groove, protruding touching more easily inserted in draw-in groove, and maintenance is connected with the effective of both positive and negative polarity contact.Issuable electric spark when the employing of watering sealing has effectively prevented the work of intrinsically safe circuit plate.The employing of insulating barrier has guaranteed that intrinsically safe circuit panel element is not subject to ectocine, has guaranteed the normal work of intrinsically safe circuit plate intrinsically safe circuit.The employing of control circuit has realized the control to switching circuit, and switching circuit is for shutoff and the conducting of control input end.The first switching device, as the switching tube of intrinsically safe circuit, when adopting a plurality of the first switch, has been realized the multiple protective to intrinsically safe circuit.Triode and second switch device, as the control valve of the first switching device, are controlled the turn-on and turn-off of the first switching device.The employing of two diodes, the first resistance and the 5th resistance is all for controlling the size of electric current.Intrinsic safe battery of the present utility model directly plugs to be installed on by installation portion has realized power supply and the integrated explosion-proof video camera of video camera on described camera body.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model intrinsic safe battery;
Fig. 2 is the internal structure schematic diagram of the utility model intrinsic safe battery;
Fig. 3 is the intrinsically safe circuit structural representation of the utility model intrinsic safe battery;
Fig. 4 is the structural representation of the explosion-proof video camera of the utility model when intrinsic safe battery is not installed;
Fig. 5 is that the explosion-proof video camera of the utility model is installed the structural representation after intrinsic safe battery.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
Refer to Fig. 1,2, a kind of intrinsic safe battery 7 of the present utility model, comprises a shell 1, battery core group 2, an operating circuit plate 8, an intrinsically safe circuit plate 4, a both positive and negative polarity interface 12, and both positive and negative polarity interface 12 comprises a plurality of draw-in grooves 123 that are formed at shell one end; One anodal contact 121 and a negative pole contact 122 are arranged at respectively in draw-in groove 123, battery core group 2, operating circuit plate 8, intrinsically safe circuit plate 4 are arranged in shell 1 and battery core group 2 is connected in operating circuit plate 8, operating circuit plate 8 is connected in intrinsically safe circuit plate 4, intrinsically safe circuit plate 4 connects anodal contact 121 and negative pole contact 122, and shell 1 forms installation portion 11.The slot that in the present embodiment, installation portion 11 is recessed to form respectively for shell 1 both sides.The top board of slot forms a plurality of recesses 111 along slot length direction interval.Both positive and negative polarity interface 12 also comprises the groove 124 that is formed at draw-in groove 123 both sides.
Two battery core groups 2 are connected mutually.Battery core group 2 comprises a plurality of battery cores 21, battery core 21 connection parallel with one another.The energy-accumulating medium of battery core 21 adopts lithium battery.
Intrinsically safe circuit plate 4 surface-coated have insulating barrier.Space between shell 1, battery core group 2, operating circuit plate 8 and intrinsically safe circuit plate 4 is filled insulating cement 5 formation and is watered sealing, and waters sealing sealed envelope in two battery core groups 2, operating circuit plate 8 and intrinsically safe circuit plate 4 outsides.
Insulating cement 5 adopts resin material.Working temperature≤200 ℃.Insulation voltage >=22kv/mm.For guaranteeing curing time and the mobility of resin, before injecting glue, first insulating cement 5 is preheated to 40 ℃, guarantee that insulating cement 5 has good mobility.During encapsulation, with clean cloth, wipe the resin of trickling, element is kept flat, must not rock, at room temperature place 24h and solidify.Can first with duricrust paper or plastics etc., make a container that is suitable for shape of product, will need the part of encapsulation to surround, then insulating cement 5 is injected, guarantee that watering seal coat thickness is not less than 1mm.Intrinsically safe circuit plate 4 solders side are coated with insulating varnish twice, carry out encapsulation together with battery core group 2.
Issuable electric spark when the employing of watering sealing has effectively prevented 4 work of intrinsically safe circuit plate.The employing of insulating barrier has guaranteed that intrinsically safe circuit plate 4 elements are not subject to ectocine, has guaranteed the normal work of intrinsically safe circuit plate 4 intrinsically safe circuits 41.
Refer to Fig. 2,3, intrinsically safe circuit plate 4 comprises a substrate and be arranged at the intrinsically safe circuit 41 on substrate, and intrinsically safe circuit 41 comprises an input 412, an output 411, an anode link 414, a battery cathode link 415, a switching circuit and a control circuit; Switching circuit is connected between output 411 and input 412, the turn-on and turn-off of control circuit connecting valve circuit control switch circuit, output 411 connects anodal contact 121, input 412 connects negative pole contact, and anode link 414 connects battery core group 2 positive poles by operating circuit plate 8; Battery cathode link 415 connects battery core group 2 negative poles by operating circuit plate 8.
In the present embodiment, switching circuit comprises two first switching device U1, U2, in other embodiments, also can adopt a plurality of the first switching devices.The first switching device U1, U2 comprise respectively two metal-oxide-semiconductors; The grid of the metal-oxide-semiconductor of the first switching device U1, U2 connects control circuit;
The two metal-oxide-semiconductor grids of the first switching device U1 are in parallel also by one first resistance R 7 connection anode links 414; The two metal-oxide-semiconductor grids of the first switching device U2 are in parallel also by one first resistance R 8 connection anode links 414; The source electrode of the drain electrode parallel connection of two metal-oxide-semiconductors of the first switch member U2 and the two metal-oxide-semiconductor parallel connections of connection the first switch member U1; The source electrode of two metal-oxide-semiconductors of the first switch member U1 is in parallel and connect battery cathode links 415 by a sampling resistor 413; The drain electrode of two metal-oxide-semiconductors of the first switch member U1 input 412 that is connected in parallel.
In other embodiments, for the switching circuit that adopts a plurality of the first switch member:
The drain electrode of two metal-oxide-semiconductors of last the first switch member source electrode in parallel and that connect two metal-oxide-semiconductor parallel connections of next the first switch member forms a queue;
Be positioned at the source electrode of two metal-oxide-semiconductors of the first switch member of queue stem in parallel and connect battery cathode links 415 by a sampling resistor 413;
The drain electrode of two metal-oxide-semiconductors that is positioned at one first switch member of the queue afterbody input 413 that is connected in parallel.
In the present embodiment, control circuit comprise a second switch device U3 with the first switching device U1, two triode Q1, Q2 that U2 number is identical; Second switch device U3 comprises and the first switching device U1, two metal-oxide-semiconductors that U2 number is identical; The source ground of the metal-oxide-semiconductor of second switch device U3, each metal-oxide-semiconductor of second switch device U3 is connected in the grid of the metal-oxide-semiconductor of corresponding the first switch member U1 or the first switch member U2 by drain electrode, the grid of each metal-oxide-semiconductor of second switch device U3 by one second resistance R 9 or the second resistance R 10, be connected in one first switching device U1 or the first switching device U2 two metal-oxide-semiconductor parallel connections drain electrode and by one the 3rd resistance R 13 ground connection;
In the present embodiment, triode Q1, Q2 are in parallel with battery core group 2;
Triode Q1 is connected in the metal-oxide-semiconductor of corresponding the first switching device U1 grid by collector electrode also connects anode links 414 by the first resistance R 7; The emitter of triode Q1 connects respectively battery cathode link 415 and ground connection; The base stage of triode Q1 is connected in the source electrode of the two metal-oxide-semiconductor parallel connections of the first switch member U2 by one the 4th resistance R 11.
Triode Q2 is connected in the metal-oxide-semiconductor of corresponding the first switching device U2 grid by collector electrode also connects anode links 414 by the first resistance R 8; The emitter of triode Q2 connects respectively battery cathode link 415 and ground connection; The base stage of triode Q2 is connected in the source electrode of the two metal-oxide-semiconductor parallel connections of the first switch member U2 by one the 4th resistance R 12.
Intrinsically safe circuit 41 also comprises two diode D1, D2, and diode D1, D2 one end connect the drain electrode of two metal-oxide-semiconductor parallel connections of the first switch member that is positioned at rear of queue portion, diode D1, D2 other end ground connection.
The first resistance 413 comprises sub-resistance R 1, R2, the R3 of a plurality of connections parallel with one another.
In the present embodiment, the operation principle of intrinsically safe circuit 41 is as follows:
The first switching device U1, U2 are as the double protection switches pipe of intrinsically safe circuit 41, and wherein the MOS of the first switching device U1 parallel connection forms first order protective circuit, the MOS formation in parallel second level protective circuit of the first switching device U2.Second switch device U3 and triode Q1, Q2 are the control valves of the first switching device U1, U2, when there is no connecting electronic equipment even load, triode Q1, Q2 and second switch pipe U3 cut-off, the first switching device U1, U2 are connected to 2 conductings of battery core group by the 5th resistance R 7, R8.
When connecting load, intrinsically safe circuit 41 has three kinds of situations:
(1) normal operating load
Operating current is less than overload protection electric current, and load obtains intrinsic safe battery 7 voltages.
(2) circuit output overloading
When I* (R1//R2//R3) >=preset value (as 0.6V), intrinsically safe circuit 41 output overloadings; The now full conducting of triode Q1, Q2 or one of them conducting, the grid voltage of the first switching device U1, U2 is zero, the first switching device U1, U2 all or one of turn-off, the electric current in load is zero; Input 412 voltages are battery core group 2 voltages simultaneously; Two metal-oxide-semiconductors in second switch device U3 all or one of conducting, the shutoff that keeps the first switching device U1, U2, has realized the protection to load.I is the supply current of the load (as camera chain) that connects between output P+ and input P-.
(3) circuit output short-circuit
When electric current I max* (R1//R2//R3) >> mono-preset value (as: 0.6V) that short circuit produces, triode Q1, Q2 conducting at once, the first switching device U1, U2 turn-off, and have realized the protection to load.Imax is video camera internal short-circuit.
The employing of intrinsically safe circuit plate 4 realized the control to operating current, power, electric capacity etc., during the electronic device works having avoided the utility model intrinsic safe battery 7 is installed, produces electric spark and localized hyperthermia, guaranteed the explosion-proof performance of intrinsic safe battery 7 and electronic equipment.The structure of battery 21 connection parallel with one another and 2 series connection of battery core group, makes intrinsic safe battery 7 on the basis that electronic equipment steady job voltage is provided, increase substantially the accumulate capacity of intrinsic safe battery 7, and rationally utilizes space to reduce the overall volume of intrinsic safe battery 7.The energy-accumulating medium of battery 21 adopts lithium battery, significantly improved the accumulate capacity of battery 21 unit volumes, thereby realized on the basis of assurance intrinsic safe battery 7 accumulate capacity abundances, significantly reduced the volume of intrinsic safe battery 7, and significantly alleviated the weight of intrinsic safe battery 7.And energy-accumulating medium and battery 21 are parallel with one another and the cooperation of battery core group 2 cascaded structures, further dwindled the volume of intrinsic safe battery 7, intrinsic safe battery 7 can be directly installed on electronic equipment, realize the integrated of intrinsic safe battery and electronic equipment, made intrinsic safe battery and electronic equipment be more convenient for carrying.
Refer to Fig. 1, Fig. 4, Fig. 5, a kind of explosion-proof video camera based on the utility model intrinsic safe battery of the present utility model, comprise a camera body 6, camera body 6 forms the battery mounting groove 61 coordinating with installation portion 11, in battery mounting groove 61, be provided with a battery interface, intrinsic safe battery 7 is directly plugged and is installed on camera body 6 by installation portion 11, both positive and negative polarity interface 12 connects battery interface simultaneously, and anodal contact 121 contacts an internal circuit that is connected in camera body 6 with negative pole contact 122.Battery interface comprises and a plurality ofly protrudingly touches 611, protrudingly touches 611 and is inserted in respectively that in draw-in groove 123 and respectively, 122 contacts are connected with negative pole contact with anodal contact 121.Protruding tactile 611 are column.
The utility model has adopted integrated structural design.Being about to the intrinsic safe battery 7 supporting with explosion-proof video camera is directly installed on explosion-proof camera body 6, outward appearance is almost consistent with common camera, explosion-proof video camera and intrinsic safe battery 7 unite two into one, and not needing to re-use in addition in succession respectively intrinsic safe battery 7 and explosion-proof video camera of an electric power connection line can power.Realization directly contacts power supply by the intrinsic safe battery 7 both positive and negative polarities power supply both positive and negative polarity original with explosion-proof camera.
The intrinsic safe battery 7 of recording in the utility model, it is the abbreviation of intrinsically safe battery, that is: this battery is under GB3836.4-2010 standard defined terms, the fault condition that comprises normal work and regulation, any electric spark or any thermal effect of generation all can not be lighted the battery of the explosive gas atmosphere of regulation.
Wherein essential safe type refers to: a kind of type of explosion proof construc tion of electric equipment, it can not produce the level of lighting by device interior and the issuable electric spark of connection wire or the thermal effect energy limited that are exposed to potential explosive atmosphere.
In addition, the intrinsically safe circuit 41 of recording in the utility model is abbreviations of intrinsically safe circuit, intrinsically safe circuit refers to: under GB3836.4-2010 standard defined terms, the fault condition that comprises normal work and regulation, any electric spark or any thermal effect of generation all can not be lighted the circuit of the explosive gas atmosphere of regulation.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thereby some details in embodiment should not form restriction of the present utility model, the utility model will be usingd scope that appended claims defines as protection range of the present utility model.
Claims (18)
1. an intrinsic safe battery, comprise a shell, battery core group, one operating circuit plate, one anodal contact and a negative pole contact, described anodal contact and described negative pole contact are arranged on described shell, described battery core group and described operating circuit plate are arranged in described shell and described battery core group is connected described anodal contact and described negative pole contact by described operating circuit plate, described shell forms installation portion, it is characterized in that, also comprise an intrinsically safe circuit plate, described intrinsically safe circuit plate is arranged in described shell, described operating circuit plate connects described intrinsically safe circuit plate and connects described anodal contact and described negative pole contact by described intrinsically safe circuit plate.
2. intrinsic safe battery according to claim 1, is characterized in that: described shell forms a both positive and negative polarity interface, and described both positive and negative polarity interface comprises a plurality of draw-in grooves that are formed at described shell one end; Described anodal contact and described negative pole contact are arranged at respectively in described draw-in groove.
3. intrinsic safe battery according to claim 2, is characterized in that: described battery core group comprises a plurality of battery cores the connection parallel with one another of described battery core.
4. intrinsic safe battery according to claim 3, is characterized in that: comprise a plurality of described battery core groups, described battery core group is connected mutually.
5. intrinsic safe battery according to claim 4, is characterized in that: the energy-accumulating medium of described battery core adopts lithium battery.
6. according to the intrinsic safe battery described in claim 2-5 any one, it is characterized in that: space between described shell, described battery core group, described operating circuit plate and described intrinsically safe circuit plate is filled insulating cement and formed and water sealing, and described in to water sealing sealed envelope outside in described battery core group, described operating circuit plate and described intrinsically safe circuit plate.
7. intrinsic safe battery according to claim 6, is characterized in that: described intrinsically safe circuit plate surface-coated has insulating barrier.
8. intrinsic safe battery according to claim 7, it is characterized in that: described intrinsically safe circuit plate comprises a substrate and be arranged at the intrinsically safe circuit on described substrate, and described intrinsically safe circuit comprises an input, an output, an anode link, a battery cathode link, a switching circuit and a control circuit; Described switching circuit is connected between described output and described input, described control circuit connects described switching circuit and controls the turn-on and turn-off of described switching circuit, described output connects described anodal contact, described input connects described negative pole contact, and it is anodal that described anode link connects described battery core group by described operating circuit plate; Described battery cathode link connects described battery core group negative pole by described operating circuit plate.
9. intrinsic safe battery according to claim 8, is characterized in that:
Described switching circuit comprises at least two first switching devices, and described the first switching device comprises respectively two metal-oxide-semiconductors; The grid of the metal-oxide-semiconductor of described the first switching device connects described control circuit;
Two metal-oxide-semiconductor grids parallel connections of described the first switching device also connect described anode link by one first resistance;
The drain electrode of two metal-oxide-semiconductors of last the first switch member source electrode in parallel and that connect two metal-oxide-semiconductor parallel connections of next the first switch member forms a queue;
Be positioned at the source electrode of two metal-oxide-semiconductors of the first switch member of described queue stem in parallel and connect described battery cathode link by a sampling resistor;
The drain electrode of two metal-oxide-semiconductors that is positioned at the first switch member of the described queue afterbody described input that is connected in parallel.
10. intrinsic safe battery according to claim 9, is characterized in that:
Described control circuit comprises a second switch device and the triode identical with described the first switching device number; Described second switch device comprises the metal-oxide-semiconductor identical with the first switching device number; The source ground of the metal-oxide-semiconductor of described second switch device, each metal-oxide-semiconductor of described second switch device is connected in the grid of the metal-oxide-semiconductor of corresponding the first switch member by drain electrode, the grid of each metal-oxide-semiconductor of described second switch device is connected in the drain electrode of two metal-oxide-semiconductor parallel connections of the first switching device described in one and is passed through one the 3rd grounding through resistance by one second resistance;
Described triode is in parallel with described battery core group, and described in each, triode is connected in the grid of corresponding the first switching device metal-oxide-semiconductor and is connected described anode link by described the first resistance by collector electrode; The emitter of described triode connects respectively described battery cathode link and ground connection; Described in each, the base stage of triode is connected to the source electrode of two metal-oxide-semiconductor parallel connections of the first switch member that is positioned at described queue stem by one the 4th resistance.
11. intrinsic safe batteries according to claim 10, is characterized in that: described intrinsically safe circuit also comprises two diodes, and described diode one end connects the drain electrode of two metal-oxide-semiconductor parallel connections of the first switch member that is positioned at described queue afterbody, described diode other end ground connection.
12. intrinsic safe batteries according to claim 11, is characterized in that: described the first resistance comprises the sub-resistance of a plurality of connections parallel with one another.
13. intrinsic safe batteries according to claim 12, is characterized in that: described installation portion is the slot that described shell both sides are recessed to form respectively.
14. intrinsic safe batteries according to claim 13, is characterized in that: the top board of described slot forms a plurality of recesses along described slot length direction interval.
15. intrinsic safe batteries according to claim 14, is characterized in that: described both positive and negative polarity interface also comprises the groove that is formed at described draw-in groove both sides.
The explosion-proof video camera of 16. 1 kinds of a kind of intrinsic safe batteries based on described in claim 2～15 any one, comprise a camera body, it is characterized in that, described camera body forms the battery mounting groove coordinating with described installation portion, in described battery mounting groove, be provided with a battery interface, described intrinsic safe battery is directly plugged and is installed on described camera body by described installation portion, described both positive and negative polarity interface connects described battery interface simultaneously, and described anodal contact contacts with described negative pole contact an internal circuit that is connected in described camera body.
17. explosion-proof video cameras according to claim 16, is characterized in that: described battery interface comprises a plurality of protruding touching, and described protruding tactile being inserted in respectively in described draw-in groove and is respectively connected with described negative pole contact contact with described anodal contact.
18. explosion-proof video cameras according to claim 17, is characterized in that: described protruding touching is column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263639.4U CN203883526U (en) | 2014-05-20 | 2014-05-20 | Intrinsic safety battery and explosion-proof video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263639.4U CN203883526U (en) | 2014-05-20 | 2014-05-20 | Intrinsic safety battery and explosion-proof video camera |
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| Publication Number | Publication Date |
|---|---|
| CN203883526U true CN203883526U (en) | 2014-10-15 |
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|---|---|---|---|
| CN201420263639.4U Expired - Lifetime CN203883526U (en) | 2014-05-20 | 2014-05-20 | Intrinsic safety battery and explosion-proof video camera |
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| CN (1) | CN203883526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551542A (en) * | 2018-05-25 | 2018-09-18 | 许舟 | A kind of ight monitor camera |
| EP3696959A1 (en) * | 2019-02-14 | 2020-08-19 | Eaton Intelligent Power Limited | Hazardous environment electrical feedback barrier device, assembly, system and method |
-
2014
- 2014-05-20 CN CN201420263639.4U patent/CN203883526U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551542A (en) * | 2018-05-25 | 2018-09-18 | 许舟 | A kind of ight monitor camera |
| EP3696959A1 (en) * | 2019-02-14 | 2020-08-19 | Eaton Intelligent Power Limited | Hazardous environment electrical feedback barrier device, assembly, system and method |
| EP4250504A3 (en) * | 2019-02-14 | 2023-12-13 | Eaton Intelligent Power Limited | Hazardous environment electrical feedback barrier device, assembly, system and method |
| US11978980B2 (en) | 2019-02-14 | 2024-05-07 | Eaton Intelligent Power Limited | Hazardous environment electrical feedback barrier device, assembly, system and method |
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