CN101420117B - Water immersion protection device and water-proof electricity supply system for the device - Google Patents
Water immersion protection device and water-proof electricity supply system for the device Download PDFInfo
- Publication number
- CN101420117B CN101420117B CN2007101653734A CN200710165373A CN101420117B CN 101420117 B CN101420117 B CN 101420117B CN 2007101653734 A CN2007101653734 A CN 2007101653734A CN 200710165373 A CN200710165373 A CN 200710165373A CN 101420117 B CN101420117 B CN 101420117B
- Authority
- CN
- China
- Prior art keywords
- immersion
- circuit
- contactor
- distribution box
- soaking
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Protection Of Static Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a soaking protection device and a waterproof power supply system comprising the soaking protection device. The soaking protection device at least comprises a soaking sensor and a soaking controller which is electrically connected with the soaking sensor; the soaking sensor is used for transmitting a soaking signal to the soaking controller when the soaking sensor is soaked by water; the soaking controller is used for electrically connecting a control end of a contactor of a distributor case of the power supply system, and cutting off the contactor when the soaking controller receives the soaking signal. The waterproof power supply system comprises the soaking protection device, a battery packet, the distributor case and a cable, wherein, the battery packet, the distributor case, the cable and joints of the battery packet, the distributor case and the cable are all sealed and waterproof. The soaking protection device can cut off electricity output of the power supply system when soaking happens, and the waterproof power supply system is sealed and waterproof, so that the aim of soaking protection is realized, and the protection requirement of national standard to B grade voltage is met.
Description
Technical field
The present invention relates to electric motor car, especially, relate to the protection against flooding device and the waterproof electric power system that comprises this protection against flooding device of electric motor car.
Background technology
Electric motor car and regular fuel automobile are different, and its power source is an electricity, and is generally several hectovolts.In electric motor car immersion water, circuit or electrical appliance might immerse in the water in the car, and they might form the loop through water, and the high voltage electric energy of power battery of electric vehicle might be through the watery diarrhea exoergic.Power battery of electric vehicle will deep discharge, and water is sharply heated, and also possibly make battery explosion simultaneously.If the people also in water, not only receives the threat of battery explosion, the people can become a part in the electric loop simultaneously, and electric current will flow through human body, make human body receive electric injury, even causes death.This situation not only falls into the water and can occur in electric motor car, and in that a torrential rain brings floods, also can occur when flood takes place.
In addition, according to the requirement of national standard " GB/T 18384.3 (2001) electric automobile safety requirements the 3rd part: personnel's prevention of electric shock ", the voltage of direct current system is put under the B step voltage at 60V＜U≤1000V.Stipulate in this standard that for the live part of any B step voltage circuit, the personnel that should be provide the protection of dangerous contact.Protection against direct contact should be provided by the basic insulation of live part or by blocking/shell, or both combinations provide, and should satisfy the requirement of basic insulation, supplementary insulation, double insulation and the reinforced insulation recorded and narrated in this standard and block/requirement of shell.
Summary of the invention
The object of the present invention is to provide a kind of protection against flooding device above-mentioned national standard, that can realize protection against flooding that satisfies.To achieve these goals; Protection against flooding device provided by the invention comprises at least one immersion transducer and the immersion controller that is connected with said immersion sensor electrical; Said immersion transducer is used for sending the immersion signal when it is fashionable by water logging to the immersion controller, and said immersion controller is used for being electrically connected with the control end of the contactor of the distribution box of electric power system; And when receiving said immersion signal, said contactor is broken off.
Another object of the present invention is to provide a kind of waterproof electric power system that has comprised above-mentioned protection against flooding device.To achieve these goals; Waterproof electric power system provided by the invention comprises power brick, has the distribution box and the cable of contactor; Said power brick is electrically connected with distribution box through cable; Being used for through distribution box is that electrical appliance provides electric energy output, and wherein, this waterproof electric power system also comprises protection against flooding device of the present invention.
Immersion can be when taking place in protection against flooding device of the present invention; Cut off the electric energy output of electric power system; And waterproof electric power system of the present invention itself is a water-tight; Realized the purpose of protection against flooding thus, satisfied the requirement of shelter of national standard " GB/T 18384.3 (2001) electric automobile safety requirements the 3rd part: personnel's prevention of electric shock " the B step voltage.
Description of drawings
Fig. 1 shows the system block diagram according to protection against flooding device of the present invention;
Fig. 2 shows a kind of structural representation of optional immersion transducer;
Fig. 3 shows the system block diagram according to immersion controller of the present invention;
Fig. 4 shows the logical circuitry according to a kind of execution mode of main control unit of the present invention;
Fig. 5 shows the circuit diagram according to first control circuit of the present invention and second control circuit;
Fig. 6 shows the circuit diagram according to input circuit of the present invention;
Fig. 7 shows the circuit diagram into the power supply of the functional module power supply of immersion controller of the present invention;
Fig. 8 shows the system block diagram according to a kind of execution mode of waterproof electric power system of the present invention;
Fig. 9 shows the system block diagram according to the another kind of execution mode of waterproof electric power system of the present invention;
Figure 10 shows the circuit diagram according to a kind of execution mode of waterproof electric power system of the present invention;
Figure 11 shows the circuit diagram according to the another kind of execution mode of waterproof electric power system of the present invention.
Embodiment
Specific embodiments of the invention is described in detail with reference to the accompanying drawings.As shown in Figure 1; Protection against flooding device 10 provided by the invention comprises at least one immersion transducer 5 and the immersion controller 4 that is connected with said immersion sensor electrical; Said immersion transducer 5 is used for sending the immersion signals when it is fashionable by water logging to immersion controller 4, and said immersion controller 4 is used for being electrically connected with the control end of the contactor of the distribution box of electric power system; And when receiving said immersion signal, said contactor is broken off.
Said immersion transducer 5 can be the special general immersion transducer that also can adopt.Selected immersion transducer 5 should must not mistake send the immersion signal under non-Riddled Condition, preferably have the antispray function.Fig. 2 shows a kind of structural representation of optional immersion transducer 5.This immersion transducer 5 comprises electrode 61, semiclosedly is looped around the outer antispray inner cover 64 of electrode 61, reverse semiclosedly is looped around the outer antispray outer cover 63 of antispray inner cover 64 and electrode 61 is drawn the lead-in wire 62 of antispray outer cover 63, and said lead-in wire is used for being electrically connected with said immersion controller.Preferably, the ostium excurrens (not shown) is arranged on the antispray inner cover 64, so that the water in the cover flows out.The working method of immersion transducer 5 is following: the resistance that common electrode is 61 is very big; When immersion transducer 5 immersed in the water, water dabbled and gets between the outer cover 63 from dabble inner cover 64 and blowout prevention of blowout prevention, when electrode 61 immerses in the water fully; Owing in the water conductive ion is arranged; The resistance that electrode is 61 62 is exported out the low resistance signal through going between, thereby is sent the immersion signal.When immersion after transducer 5 comes out from water, water flows out from blowout prevention dabbles the aperture of inside and outside cover 63, and when electrode 61 not exclusively immersed in the water, it is big that the resistance that electrode is 61 becomes, and 62 exports out the high resistance signal through going between, thereby sends the signal that do not soak.
Preferably, protection against flooding device 10 of the present invention comprises at least 3 immersion transducers 5.The installation site of at least one in the said immersion transducer 5 should be lower than the installation site of guarded power pack and/or transmission of electricity part; For electric motor car, can be installed on front deck middle and lower part, crew module's seat bottom and boot or tailstock middle and lower part respectively, and be advisable with 300～600mm overhead.
As shown in Figure 3, said immersion controller 4 comprises main control unit 41, first control circuit 421, second control circuit 422 and at least one input circuit 43; Input circuit 43 is used for immersion transducer 5 is electrically connected with main control unit 41, and when receiving said immersion signal, the signal that should soak sends to main control unit 41; Main control unit 41 and first control circuit 421 is electrically connected with second control circuit 422, and when receiving said immersion signal, produces the control signal that opens circuit and also this control signal that opens circuit is sent to first control circuit 421 and second control circuit 422; First control circuit 421 and second control circuit 422 are respectively applied for the anodal contactor of the distribution box of electric power system and are electrically connected with the control end of negative pole contactor, and when receiving said opening circuit during control signal, make said contactor disconnection.
Said main control unit 41 can be microprocessor or logical circuit.Selectable microprocessor such as high-performance microcontroller P87C591.When main control unit 41 is logical circuit; Said logical circuit then can have numerous embodiments; For example shown in Figure 4; With corresponding three input circuits is example, and main control unit 41 comprises comparator (with U22A, U22B and U22C sign) and adjunct circuit and NOR gate U21, and the reverse input end of comparator U22 is electrically connected with input circuit 43, positive input connects reference voltage; The input of the output AND U21 of comparator U22 is electrically connected, and the output of NOR gate U21 is electrically connected with first control circuit 421 and second control circuit 422.
Said first control circuit 421 can adopt identical circuit structure with second control circuit 422, and is as shown in Figure 5, comprises transistor T 11 and resistance R 17.The base stage of transistor T 11 is used for being connected with the output port of said main control unit 41; The collector electrode of transistor T 11 is used for being electrically connected with the anodal contactor of the distribution box of electric power system or the control end of negative pole contactor; The grounded emitter of transistor T 11; The base stage of transistor T 11 links to each other with an end of resistance R 17, the other end ground connection of resistance R 17.
Said input circuit 43, as shown in Figure 6, comprise first resistance R 11, second resistance R 12, voltage stabilizing didoe Z11 and capacitor C 11; One end of first resistance R 11 is used to connect power supply, and the other end is used to connect an end of immersion transducer 5 and an end of second resistance R 12; The negative pole of another termination voltage stabilizing didoe Z11 of second resistance R 12 and an end of capacitor C 11, and simultaneously as the input port of exporting the said main control unit 41 of termination; The other end ground connection of the positive pole of voltage stabilizing didoe Z11 and capacitor C 11.
The power supply of each functional module power supply that is used to said immersion controller 4 is as shown in Figure 7, and the positive pole of electric motor car normalizing line is taken over control the positive pole of reversal connection diode D11, minus earth; The negative pole of diode D11 meets the input Tin of anti-jamming circuit EM11; The output Tout of anti-jamming circuit EM11 meets the positive pole of electrochemical capacitor C14, an end of capacitor C 15, the input Vin of voltage stabilizing chip U12, simultaneously as power output end 12V11 output+12V voltage; The GND end ground connection of anti-jamming circuit EM11; The other end ground connection of the negative pole of electrochemical capacitor C14, capacitor C 15; The output end vo ut of voltage stabilizing chip U12 connects the positive pole of electrochemical capacitor C16, an end of capacitor C 17, simultaneously as power output end 5V11 output+5V voltage; The other end ground connection of the negative pole of electrochemical capacitor C16, capacitor C 17; The GND end ground connection of voltage stabilizing chip U12.
Waterproof electric power system provided by the invention comprises power brick 1, has the distribution box 2 and the cable 3 of contactor; Said power brick 1 is electrically connected with distribution box 2 through cable 3; Be used for for electrical appliance electric energy output being provided through distribution box 2, wherein this waterproof electric power system also comprises protection against flooding device 10 of the present invention.
Waterproof electric power system provided by the invention, wherein, power brick, the distribution box with contactor and cable have one of following structure at least: the equal water-tight in junction of said power brick, the distribution box with contactor and cable; Said power brick, distribution box and cable are encapsulated in respectively in the casing of airtight waterproof; Said power brick, distribution box and cable be integrated to be encapsulated in the casing of an airtight waterproof.
As shown in Figure 8, according to a kind of execution mode of waterproof electric power system of the present invention, said power brick 1, distribution box 2 and cable 3; Respectively by casing X11; X13 and pipeline X12 encapsulation, the total airtight waterproof, GB 4208-93 degree of protection IP65/IP68 is up to state standards.The positive pole of power brick 1 connects the end of normally opened contact of the anodal high voltage connector K11 of distribution box 2, and the other end of high voltage connector K11 is as positive extra high voltage cable output output high-tension electricity.The negative pole of power brick 1 connects the end of normally opened contact of the negative pole high voltage connector K12 of distribution box 2, and the negative pole high voltage connector K12 other end is as negative pole high-tension cable output output high-tension electricity; The control end of anodal high voltage connector K11 and negative pole high voltage connector K12 is connected with the output of the immersion controller 4 of protection against flooding device 10 respectively.
As shown in Figure 9; Another kind of execution mode according to waterproof electric power system of the present invention; Said power brick 1, distribution box 2 and cable 3 are incorporated in the total output case 10, said total output case 10 airtight waterproofs, and GB 4208-93 degree of protection IP65/IP68 is up to state standards.The connected mode between power brick 1, distribution box 2 and the cable 3 wherein, and they are identical with the connected mode and the aforementioned embodiments of protection against flooding device 10, repeat no more at this.
Figure 10 is to comprise that three groups of immersion transducers 5 and corresponding three input circuits 43 (with 431,432 and 433 signs) are example; Show the particular circuit configurations of a kind of execution mode of waterproof electric power system of the present invention, wherein adopt microprocessor U11 to realize the main control unit 41 of the immersion controller 4 of said protection against flooding device 10.Microprocessor U11 is example with P87C591; Wherein the 4th of microprocessor the, 5,6 pins are respectively applied for and connect first input circuit 431, second input circuit 432 and the 3rd input circuit 433; The 8th, 9 pins of microprocessor are respectively applied for and connect first control circuit 421 and second control circuit 422; The 23rd pin of microprocessor connects high level, the 1st pin ground connection of microprocessor.Its course of work is following:
When common state, the output voltage of the input circuit of said immersion controller 4 is directly proportional with the resistance that the transducer 5 that soaks provides, i.e. V
Wso11=(Rws11/ (R11+Rws11)) * V
5v11, V
Wso12=(Rws12/ (R13+Rws12)) * V
5v11And V
Wso13=(Rws13/ (R15+Rws13)) * V
5v11(WS11, WS12 WS13) do not immerse in the water immersion transducer 5, and its resistance R ws11 that provides, Rws12, Rws13 are very big, so the output voltage V of input circuit
Wso11, V
Wso12, V
Wso13All very high, these three voltages input to analog/digital conversion input port P1.2, P1.3, the P1.4 of microprocessor U11, convert digital quantity into.Microprocessor U11 compares this digital quantity with being stored in the threshold voltage digital quantity that judging whether in the microprocessor soak in advance, drawing not have the conclusion of soaking, and exports high potential simultaneously at its delivery outlet P1.6, P1.7.These two high potentials make transistor T 11, the T12 conducting simultaneously in first control circuit 421 and the second control circuit 422.Because transistor T 11, T12 conducting, electric current is flowed through high voltage connector K11, K12 coil, transistor T 11, T12 to ground from the output 12V11 of power supply simultaneously.High voltage connector K11, K12 adhesive simultaneously.Positive extra high voltage cable and negative pole high-tension cable be output power simultaneously.Electric motor car gets into can transport condition.
When Riddled Condition,, have at least one to immerse in the water in the immersion transducer 5 (with WS11, WS12, WS13 sign) if electric motor car immerses certain degree of depth in the water.Have at least one to diminish among its resistance R ws11 that provides, Rws12, the Rws13.Because the output voltage of said immersion controller 4 input circuits is directly proportional with the resistance that the immersion transducer provides, i.e. V
Wso11=(Rws11/ (R11+Rws11)) * V
5v11V
Wso12=(Rws12/ (R13+Rws12)) * V
5v11V
Wso13=(Rws13/ (R15+Rws13)) * V
5v11So output voltage V of input circuit
Wso11, V
Wso12, V
Wso13In have a step-down at least.These 3 voltages input to analog/digital conversion input port P1.2, P1.3, the P1.4 of microprocessor U11, convert digital quantity into.Microprocessor U11 with this digital quantity be stored in the threshold voltage digital quantity that judging whether in the microprocessor soak in advance and compare; Judge the conclusion that has at least one road voltage to be lower than threshold value; Thereby draw the conclusion of immersion, export electronegative potential simultaneously at its delivery outlet P1.6, P1.7.These two electronegative potentials end transistor T 11, T12 simultaneously.Because transistor T 11, T12 end, electric current can not flow through from the output 12V11 of power supply high voltage connector K11, K12 coil, transistor T 11, T12 are to ground wire.High voltage connector K11, K12 discharge simultaneously.Positive extra high voltage cable and negative pole high-tension cable stop output power simultaneously.Because these high-tension cables and following circuit, electrical equipment thereof do not have electricity, do not have electric safety problem so immerse in the water yet.In addition, said power brick 1, distribution box 2 and cable 3 itself are in the enclosed water-proof structure, also do not have water and get into, thereby also do not have safety problem.
Figure 11 is to comprise that three groups of immersion transducers and input circuit are example; Show the particular circuit configurations of the another kind of execution mode of waterproof electric power system of the present invention, wherein adopt the circuit structure that constitutes by logical circuit shown in Figure 4 to realize the main control unit 41 of the immersion controller 4 of said protection against flooding device 10.The controller 41 of said immersion controller 4 has comprised that the first comparator U22A, the second comparator U22B, the 3rd comparator U22C, NOR gate U21 and the adjunct circuit thereof of corresponding respectively one group of immersion transducer constitute.Its course of work is following:
When common state, the output voltage of the input circuit of said immersion controller 4 is directly proportional with the resistance that the transducer that soaks provides, i.e. V
Wso211=(Rws21/ (R203+Rws21)) * V
6v21Vwso221=(Rws22/ (R207+Rws22)) * V
6v21V
Wso231=(Rws23/ (R211+Rws23)) * V
6v21Immersion transducer WS21, WS22, WS23 do not immerse in the water, and its resistance R ws11 that provides, Rws12, Rws13 are very big, so the output voltage V of input circuit
Wso211, V
Wso221, V
Wso231All very high.Voltage V
Wso211Directly input to the negative input end of comparator U22A.The positive input terminal of comparator U22A is connected to divider resistance R205, R206, obtains the threshold voltage V whether a definite judgement soaks
U22aWork as V
Wso211＞V
U22The time, comparator U22A output low level is to NOR gate U21 input, and other two groups are in like manner.When 3 inputs of NOR gate U21 are low level, its output will be high level, thereby make transistor T 21, T22 conducting.Because transistor T 21, T22 conducting, electric current is flowed through high voltage connector K21, K22 coil, transistor T 21, T22 to ground from the output 12V21 of power supply simultaneously.High voltage connector K21, K22 adhesive simultaneously.Positive extra high voltage cable and negative pole high-tension cable be output power simultaneously.Electric motor car gets into can transport condition.
When Riddled Condition,, have at least one to immerse in the water among immersion transducer WS21, WS22, the WS23 if electric motor car immerses certain degree of depth in the water.Have at least one to diminish among its resistance R ws21 that provides, Rws22, the Rws23.Because the output voltage of the input circuit of said immersion controller 4 is directly proportional with the resistance that the immersion transducer provides, i.e. V
Wso211=(Rws21/ (R203+Rws21)) * V
6v21V
Wso221=(Rws22/ (R207+Rws22)) * V
6v21V
Wso231=(Rws23/ (R211+Rws23)) * V
6v21So output voltage V of input circuit
Wso211, V
Wso221, V
Wso231In have a step-down at least.Suppose voltage V
Wso211Step-down, this voltage V
Wso211Directly input to the negative input end of comparator U22A.The positive input terminal of comparator U22A is connected to divider resistance R205, R206, obtains the threshold voltage Vu22a whether a definite judgement soaks.Work as V
Wso211≤V
U22aThe time, comparator U22A output high potential is to NOR gate U21 input.One or more are arranged in 3 inputs of NOR gate U21 is high potential, promptly exports electronegative potential, thereby transistor T 21, T22 are ended.Because transistor T 21, T22 end, electric current can not flow through from the output 12V21 of power supply high voltage connector K21, K22 coil, transistor T 21, T22 are to ground wire.High voltage connector K21, K22 discharge simultaneously.Positive extra high voltage cable and negative pole high-tension cable stop output power simultaneously.Because these high-tension cables and following circuit, electrical equipment thereof do not have electricity, do not have electric safety problem so immerse in the water yet.In addition, said power brick 1, distribution box 2 and cable 3 are in the enclosed water-proof structure itself, thereby also do not have safety problem.
Claims (7)
1. protection against flooding device; Said protection against flooding device comprises at least one immersion transducer and the immersion controller that is connected with said immersion sensor electrical; Said immersion transducer is used for sending the immersion signal when it is fashionable by water logging to the immersion controller, and said immersion controller is used for being electrically connected with the control end of the contactor of the distribution box of electric power system; And when receiving said immersion signal, said contactor is broken off;
Said immersion controller comprises main control unit, first control circuit, second control circuit and at least one input circuit; Input circuit is used for the immersion transducer is electrically connected with main control unit, and when receiving said immersion signal, the signal that should soak sends to main control unit; Main control unit is electrically connected with first control circuit and second control circuit, is used for when receiving said immersion signal, produces and opens circuit control signal and this control signal that opens circuit is sent to first control circuit and second control circuit; First control circuit and second control circuit are respectively applied for the anodal contactor of the distribution box of electric power system and the control end of negative pole contactor and are electrically connected, and when receiving said opening circuit during control signal, said contactor are broken off;
Wherein said input circuit comprises first resistance, second resistance, voltage stabilizing didoe and electric capacity; One end of first resistance is used to connect power supply, and the other end is used to connect an end of immersion transducer and an end of second resistance; The negative pole of another termination voltage stabilizing didoe of second resistance and an end of electric capacity, and simultaneously as the input port of exporting the said main control unit of termination; The other end ground connection of the positive pole of voltage stabilizing didoe and electric capacity.
2. protection against flooding device according to claim 1, wherein said main control unit are microprocessor.
3. protection against flooding device according to claim 1; Wherein said main control unit is a logical circuit; This logical circuit comprises NOR gate and at least one comparator; The reverse input end of comparator is used for being electrically connected with input circuit, positive input is used to connect reference voltage, and the input of the output AND of comparator is electrically connected, and the output of NOR gate is electrically connected with the input of first control circuit and second control circuit.
4. protection against flooding device according to claim 1; Wherein said first control circuit and second control circuit include transistor T and resistance R; The base stage of transistor T links to each other with an end of resistance R, the other end ground connection of resistance R, and the base stage of transistor T is used for being connected with the output port of said main control unit; The collector electrode of transistor T is used for being electrically connected the grounded emitter of transistor T with the anodal contactor of the distribution box of electric power system or the control end of negative pole contactor.
5. protection against flooding device according to claim 1; Wherein said immersion transducer comprises electrode, semiclosedly is looped around the outer antispray inner cover of electrode, reverse semiclosedly is looped around the outer antispray outer cover of antispray inner cover and electrode is drawn the lead-in wire of antispray outer cover, and said lead-in wire is used for being electrically connected with said immersion controller.
6. waterproof electric power system; Said waterproof electric power system comprises power brick, has the distribution box and the cable of contactor; Said power brick is electrically connected with distribution box through cable, and being used for through distribution box is that electrical appliance provides electric energy output, it is characterized in that; This waterproof electric power system also comprises the protection against flooding device, and said protection against flooding device is each described protection against flooding device among the claim 1-5.
7. waterproof electric power system according to claim 6, wherein, power brick, the distribution box with contactor and cable have one of following structure at least:
The equal water-tight in junction of said power brick, distribution box and cable with contactor;
Said power brick, distribution box and cable are encapsulated in respectively in the casing of airtight waterproof;
Said power brick, distribution box and cable be integrated to be encapsulated in the casing of an airtight waterproof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101653734A CN101420117B (en) | 2007-10-26 | 2007-10-26 | Water immersion protection device and water-proof electricity supply system for the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101653734A CN101420117B (en) | 2007-10-26 | 2007-10-26 | Water immersion protection device and water-proof electricity supply system for the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101420117A CN101420117A (en) | 2009-04-29 |
| CN101420117B true CN101420117B (en) | 2012-01-25 |
Family
ID=40630783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101653734A Active CN101420117B (en) | 2007-10-26 | 2007-10-26 | Water immersion protection device and water-proof electricity supply system for the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101420117B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202068171U (en) * | 2011-03-15 | 2011-12-07 | 中兴通讯股份有限公司 | Protective device for electronic equipment in water |
| CN103114911B (en) * | 2011-11-16 | 2015-03-25 | 深圳职业技术学院 | Early warning system of engine |
| CN102881856A (en) * | 2012-10-16 | 2013-01-16 | 天津力神电池股份有限公司 | Power battery system |
| CN103115564B (en) * | 2013-01-21 | 2016-01-27 | 华为技术有限公司 | Water inlet detecting sensor, water enter preventing device, method and communication facilities |
| CN105700430B (en) * | 2016-01-20 | 2019-07-23 | 徐州立方机电设备制造有限公司 | A kind of outdoor electric appliance distribution box waterproof system |
| CN109638776B (en) * | 2018-11-26 | 2023-10-10 | 佛山职业技术学院 | Power supply controller capable of automatically powering off after water immersion |
| WO2020172771A1 (en) * | 2019-02-25 | 2020-09-03 | 华为技术有限公司 | Water immersion detection method and electronic device |
| CN111649801A (en) * | 2020-08-10 | 2020-09-11 | 江西科技学院 | Infrared monitoring alarm device and alarm method thereof |
| US11328914B1 (en) * | 2020-11-10 | 2022-05-10 | Baker Hughes Oilfield Operations Llc | Discharge reduction in sealed components |
-
2007
- 2007-10-26 CN CN2007101653734A patent/CN101420117B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101420117A (en) | 2009-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101420117B (en) | Water immersion protection device and water-proof electricity supply system for the device | |
| US8355233B2 (en) | Short-circuit protection for an electric vehicle battery | |
| KR100731051B1 (en) | Anti electric shock system in water | |
| US9380721B2 (en) | Cable clip for module electronics | |
| CN105763152B (en) | A kind of terminal box, photovoltaic module and its system | |
| CN106208225A (en) | The charging active circuit of rechargeable battery | |
| CN205303813U (en) | On -vehicle charging wire | |
| CN206353632U (en) | A kind of battery bag low voltage wiring harness waterproof construction | |
| CN201629546U (en) | Waterproof joint | |
| CN209461960U (en) | A kind of dynamic wire harness connector | |
| CN206575108U (en) | Wire harness interconnecting device and its mounting structure and the battery assembly with it | |
| CN203102976U (en) | Direct current cable used for impressed current cathodic protection system | |
| CN216209469U (en) | New energy battery PCBA detects insulation resistance device and system | |
| CN208508182U (en) | A kind of new automobile harness of PCB connection end | |
| CN2703088Y (en) | Intelligent electronic fence | |
| CN207782054U (en) | A kind of total and fractional safety vehicle harness | |
| CN105869731A (en) | Direct-current traction cable for high-performance track traffic | |
| CN209298404U (en) | A kind of dedicated DC+ of high-power charging gun and DC- and cold liquid cooling terminal | |
| CN207381618U (en) | New-energy automobile power source special connector | |
| CN209343812U (en) | A kind of extruded insulation lv power cable | |
| CN212782774U (en) | Airport lighting illuminating cable for burying | |
| CN219179531U (en) | Seven-core cable rapid detection device | |
| CN215834857U (en) | Anti-interference multi-head electronic connecting wire | |
| CN218005900U (en) | On-vehicle charger for motorcycle | |
| CN217933275U (en) | New energy automobile is pencil system for electric power output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |