CN2862470Y - Protection type electric appliance control case - Google Patents
Protection type electric appliance control case Download PDFInfo
- Publication number
- CN2862470Y CN2862470Y CN 200520093917 CN200520093917U CN2862470Y CN 2862470 Y CN2862470 Y CN 2862470Y CN 200520093917 CN200520093917 CN 200520093917 CN 200520093917 U CN200520093917 U CN 200520093917U CN 2862470 Y CN2862470 Y CN 2862470Y
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- Prior art keywords
- circuit
- car
- control circuit
- output
- battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 13
- 230000009993 protective function Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A protective electronics control box for providing safe voltage and power-off protecting device to car-borne auxiliary electrical devices is disclosed. It comprises a car battery. The technical points are: a signal is output via engine ignition switch ON gear, and another signal output from the L end of the motor is connected with the access end isolating the control circuit; the output end isolating the control circuit and the car battery is connected with the charging control circuit respectively; the output end of the charging control circuit is connected with an auxiliary storage battery; the output end of the auxiliary storage battery is connected with the exclusive executive circuit of the car electrical devices via a contravariant power source circuit. Since the utility model adds an auxiliary storage battery and a relevant guard circuit to the existing car battery circuit, and adds an externally connected power source circuit for current leakage protection connecting external power source via socket, the structure can achieve charging shift for the auxiliary power source and provide open circuit protective function for externally connected 220V power source, thus guaranteeing safe and normal use of medical devices on carrying-ambulance.
Description
Technical field
The utility model belongs to a kind of Vehicular rechargeable and power-off protection apparatus technical field; specifically a kind ofly be used to be installed in the ambulance that Medical Devices are housed, and have the protection type electric appliance control box that is used for electronic switching charging device and power-off protection apparatus on the special purpose vehicle that multiple 220V uses equipment.
Background technology
At present, the inverter power ratio that most of ambulances in use adopt is less, can't use several Medical Devices simultaneously.Even employing additional supply, to the charging modes of additional supply also just by the vehicle power oppositely control circuit that directly charges own, the easy like this storage battery to vehicle mounted causes damage, shorten its useful life, for the safe handling that guarantees vehicle mounted and the safe handling of additional storage battery, on circuit, installed the switching charging device additional.Simultaneously, guarantee the use of Medical Devices, if but might cause Medical Devices on the car to damage and patient's life is brought danger connecting power consumption equipment after the sudden power at once because the external 220V supply unit of a cover is housed on the car.
Summary of the invention
The purpose of this utility model provides a kind of protection type electric appliance control box of safe voltage and power-off protection apparatus being provided for vehicle-mounted attached power consumption equipment.To solve above-mentioned existing problem.
The purpose of this utility model is achieved in that it includes car battery, it is characterized in that: by signal of engine ignition switch ON gear output, and another signal of exporting from generator " L " end links to each other with the discrepancy end of isolation control circuit, the output of isolation control circuit and car battery are connected with charging control circuit respectively, the output of charging control circuit is connected with a booster battery, and the output of booster battery links to each other with the special-purpose executive circuit of power consumption equipment in the car by inverter power circuit.
Connect external power supply for convenience; to prolong the useful life of booster battery in the car; then be provided with an earth leakage protective external power supply circuit that has by socket connection external power source, this external power supply circuit directly links to each other with the special-purpose executive circuit of power consumption equipment in the car.
The utility model is owing to increased booster battery and relevant protective circuit on the basis of existing car battery circuit; but also increased the earth leakage protective external power supply circuit that has that connects external power source by socket, so the utility model provide can realize to additional supply that charging is switched again can be to the function of external 220V electric power disconnection protection.Ensured the normal safe use of the Medical Devices on the monitoring ambulance.
This protection type electric appliance control box circuit safety height, a series of insurance and earth leakage protective device are guaranteed the safe in utilization of inverter or external power supply.Various master cocks are simple and clear and easy to operate.
The inverter internal protection circuitry has effectively prevented the influence of electric pulse or voltage fluctuation, can bear the bigger electrical appliance clean boot of percussion power such as TV, display, and mains switch can thoroughly cut off internal circuit, and closing has no progeny can protect storage battery to be without prejudice.
Whole system has no effect to the environment in the car, noiselessness during work, and normal use can move for many years need not safeguarded.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model
Fig. 2 is circuit theory diagrams of the present utility model
Fig. 3 is the switching charging control circuit figure among Fig. 2
Below in conjunction with accompanying drawing and by example utility model is described in further detail; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.
Embodiment
Example 1
Shown in Fig. 1～3, generator begins to charge normal to car battery after car starts, and " L " is connected to the isolation controller input with generator, and ignition switch " ON " shelves are connected to the isolation controller input.Again by additional supply transfer relay coil input end, relay output end ground connection makes relay switch end closure by high level of isolation control circuit output, and this moment, vehicle-mounted main power source charged to booster battery by relay.One route 20A fuse is to the 12V supply socket, and another route 20A fuse arrives inverter by the power supply of breaking the bridge switch 220V accessory power outlet.
When car inactive state engine is not worked, vehicle-mounted power consumption equipment power supply is to provide electric energy by additional supply through the inverter conversion, disconnects through charging control circuit (isolation control circuit) and vehicle power, does not influence the car load startability.
As shown in Figure 2, when the car ato unit begins normally when car battery charges, electric current transfers to fuse S1 by the positive pole of car battery A, arrives isolation control circuit C.The input of isolation control circuit C is to be provided by the input L of generator and ignition switch output " ON ".By high level of isolation control circuit C (logical circuit and NAND gate logic control) output, connect charging control circuit relay J 1 input, make J1 adhesive and charge to balancing cell B.Otherwise, when being in, car do not start state, charging control circuit relay J 1 is not received the isolation control circuit signal, charging control circuit relay J 1 is in car battery A and disconnects, at this moment, inverter power circuit D institute output current is all provided by balancing cell A, therefore, can not cause car battery feed phenomenon.
Booster battery B, the one tunnel offers 12V external power supply H through fuse S3, and another road,, outputs to the 220V power supply on the socket G by breaking the bridge K switch 5 to inverter power circuit D through fuse S4.
Having on the earth leakage protective external power supply circuit; as: external power supply plug bumps J2 accidentally, J3 disconnects simultaneously; again external power supply seat F power supply is connected; relay J 3 adhesives, indicator light L1 shows, earth leakage protective device E output K1, K2 adhesive supply socket F power supply; this moment K switch 3, K4 closure; relay J 2 adhesives, relay indicating light L2 demonstration can trouble free service.Simultaneously～and the 220V voltmeter, show operating voltage.Accessory power outlet can have power supply output, supplies with Medical Devices and uses.When external power supply circuit or other reasons cause instant cut-off, this car broken circuit protecting equipment circuit is avoided repetition electricity crisis Medical Devices and patient's personal safety automatically with the Medical Devices dump of supply socket.
As shown in Figure 3, be isolation control circuit figure among Fig. 2.The prime control circuit comprises vehicle power as shown in the figure, generator, logic control circuit and executive circuit, the main right and wrong gate logic of described logical circuit control chip LM (2904N), resistance R 1, R3, R8, R9, R10, capacitor C 1, C8, triode T1, T2, T3, compositions such as relay J QC-3FF.
Its annexation is to be come out by " ON ", leads up to R1 to control chip, leads up to R3 to control chip, becomes one of condition of logic control circuit.
From converging to resistance R 8 from generator " L " end by diode D2 and capacitor C 1, the one tunnel amplifies to triode T1 through triode T3 to R7, signal is transmitted respectively one the road get back to control chip from R1, and another road returns control chip by R3 becomes condition two.
When possessing two conditions, the logic control circuit output signal arrives relay J QC-3FF by the octal of control chip, relay J QC-3FF starts working, output signal is through diode D3, again by resistance R 10, R7, capacitor C 4, amplify output by triode again and become signal, to charging control circuit.
In addition, R5, R4, Z1, C8, the C10 among this figure is the electric component in the logic control circuit.The inverter power that protection type electric appliance control box circuit is adopted is 1000W, and all electrical appliances use sustainable work 1 hour simultaneously.Therefore when using Medical Devices, can guarantee its fail safe.And system is independent can not to cause former car battery feed, even if therefore power-supply system breaks down and also can not influence the normal startup of car load.Power unit is safeguarded simple, and the interior generator of car can charge to booster battery during driving.The booster battery of power unit is the 100Ah non-maintaining type, can be by former car battery conventional maintenance.
Claims (2)
1; a kind of protection type electric appliance control box of safe voltage and power-off protection apparatus being provided for vehicle-mounted attached power consumption equipment; it includes car battery; it is characterized in that: by signal of engine ignition switch ON gear output; and another signal of exporting from generator " L " end links to each other with the discrepancy end of isolation control circuit; the output of isolation control circuit and car battery are connected with charging control circuit respectively; the output of this charging control circuit is connected with a booster battery, and the output of booster battery links to each other with the special-purpose executive circuit of power consumption equipment in the car by inverter power circuit.
2, protection type electric appliance control box according to claim 1; it is characterized in that: also include an earth leakage protective external power supply circuit that has by socket connection external power source, this external power supply circuit directly links to each other with the special-purpose executive circuit of power consumption equipment in the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093917 CN2862470Y (en) | 2005-11-29 | 2005-11-29 | Protection type electric appliance control case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093917 CN2862470Y (en) | 2005-11-29 | 2005-11-29 | Protection type electric appliance control case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862470Y true CN2862470Y (en) | 2007-01-24 |
Family
ID=37660099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093917 Expired - Lifetime CN2862470Y (en) | 2005-11-29 | 2005-11-29 | Protection type electric appliance control case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862470Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283710A (en) * | 2010-05-27 | 2011-12-21 | 富士胶片株式会社 | diagnostic device system |
-
2005
- 2005-11-29 CN CN 200520093917 patent/CN2862470Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283710A (en) * | 2010-05-27 | 2011-12-21 | 富士胶片株式会社 | diagnostic device system |
| US8787528B2 (en) | 2010-05-27 | 2014-07-22 | Fujifilm Corporation | Diagnostic device system |
| CN102283710B (en) * | 2010-05-27 | 2015-12-09 | 富士胶片株式会社 | Diagnostic equipment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070124 |
|
| EXPY | Termination of patent right or utility model |