CN202737450U - Over-discharge protector of storage battery - Google Patents
Over-discharge protector of storage battery Download PDFInfo
- Publication number
- CN202737450U CN202737450U CN 201220201513 CN201220201513U CN202737450U CN 202737450 U CN202737450 U CN 202737450U CN 201220201513 CN201220201513 CN 201220201513 CN 201220201513 U CN201220201513 U CN 201220201513U CN 202737450 U CN202737450 U CN 202737450U
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- China
- Prior art keywords
- storage battery
- relay
- voltage
- resistance
- protector
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an over-discharge protector of a storage battery. The over-discharge protector comprises a voltage comparator, an adjustable voltage regulator tube, a relay, a potentiometer, a light-emitting diode, a button switch, a storage battery, a first resistor, a second resistor, a capacitor and a diode. When the button switch is pressed, the storage battery supplies the power to a protection circuit, the relay is energized and attracted, and a contact of the relay is self-protected, and the storage battery and a load are switched on. After the button switch is released, the storage battery continuously supplies the power, simultaneously the light-emitting diode emits the light to represent the discharge state; when the storage battery discharges to the given final voltage, the comparator overturns, the relay is de-energized, the load and the protector are respectively disconnected with the storage battery, and the over-discharge is avoided. An external power supply is not needed, and the protector is energized by the storage battery protected by the protector, thus once the voltage of the storage battery is the given final voltage, the compositing of the storage battery, and the protection circuit are respectively switched off. The utility model has the advantages of simple structure, small volume, low cost, convenient use, and convenient popularization.
Description
Technical field
The utility model relates to a kind of attachment device of storage battery, relates in particular to a kind of accumulator over discharging protector.
Background technology
The lower limit of battery tension is final discharging voltage, continues discharge if be lower than this voltage, and light hydraulic performance decline then is heavy then cause fire.Battery overdischarge protective circuit of the prior art need to connect power supply in addition, and complex structure, volume is large, cost is high.
Summary of the invention
The purpose of this utility model provides a kind of accumulator over discharging protector with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises voltage comparator, adjustable voltage-stabiliser tube, relay, potentiometer, light-emitting diode, push-button switch, storage battery, the first resistance, the second resistance, electric capacity and diode, the anodal while of described storage battery and the first end of described push-button switch, the first end of described relay the first normal open switch be connected the first end of the second normal open switch of relay and connect, the negative pole while of described storage battery and the negative pole of electrical appliance, the negative pole of described light-emitting diode, the first end of described electric capacity, the negative power supply input of described voltage comparator, the positive pole of described adjustable voltage-stabiliser tube be connected the first end of potentiometer and connect, the second end while of described potentiometer and the first end of described the first resistance, the cathode power supply input of described voltage comparator, the second end of described electric capacity, the negative pole of described diode, the first end of described relay, the first end of described the second resistance, the second end of described relay the first normal open switch be connected the second end of push-button switch and connect, the sliding end of described potentiometer is connected with the negative signal input of described voltage comparator, the second end of described the first resistance simultaneously with the negative pole of described adjustable voltage-stabiliser tube be connected the positive signal input of voltage comparator and be connected, the output of described voltage comparator simultaneously with the positive pole of described diode be connected the second end of relay and be connected, the second end of described the second resistance is connected with the positive pole of described light-emitting diode, and the second end of the second normal open switch of described relay is connected with the positive pole of described electrical appliance.
The beneficial effects of the utility model are:
The utility model does not need external power supply, and by protected storage battery power supply, in case reach final discharging voltage, the compound and protective circuit of storage battery all is cut off, and the utility model is simple in structure, volume is little, cost is low, easy to use, be convenient to promote.
Description of drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises voltage comparator ic 1, adjustable voltage-stabiliser tube IC2, relay R L, potentiometer W, LED, push-button switch SW, storage battery, the first resistance R 1, the second resistance R 2, capacitor C and diode D, the anodal while of storage battery and the first end of push-button switch SW, the first end of relay R L the first normal open switch is connected the first end of the second normal open switch and is connected with relay R L, the negative pole while of storage battery and the negative pole of electrical appliance, the negative pole of LED, the first end of capacitor C, the negative power supply input of voltage comparator ic 1, the positive pole of adjustable voltage-stabiliser tube IC2 is connected first end and is connected with potentiometer W, the second end while of potentiometer W and the first end of the first resistance R 1, the cathode power supply input of voltage comparator ic 1, the second end of capacitor C, the negative pole of diode D, the first end of relay R L, the first end of the second resistance R 2, the second end of relay R L the first normal open switch is connected the second end and is connected with push-button switch SW, the sliding end of potentiometer W is connected with the negative signal input of voltage comparator ic 1, the second end of the first resistance R 1 is connected with the positive signal input that the negative pole of adjustable voltage-stabiliser tube IC2 is connected with voltage comparator ic simultaneously, the output of voltage comparator ic 1 simultaneously and the positive pole of diode D be connected the second end with relay R L and be connected, the second end of the second resistance R 2 is connected with the positive pole of LED, and the second end of the second normal open switch of relay R L is connected with the positive pole of electrical appliance.
As shown in Figure 1: with the 12V storage battery as object of protection, the accumulator protecting that also can be used for other voltages, the in-phase input end of voltage comparator ic 1 connects the 5V reference voltage, this voltage is provided by adjustable voltage stabilizer IC2, inverting input connects protected accumulator voltage by potentiometer W, potentiometer W transfers to the final discharging voltage 10V of 12V storage battery here for the protection of the adjustment of voltage; When pressing the button switch SW, storage battery is powered to protective circuit, and relay R L gets electric adhesive, in the time of its contact self-insurance, also storage battery and load are connected, after the release button switch SW, storage battery continues power supply, and LED is luminous simultaneously, and expression is in discharge condition; Behind the final voltage (10V) that battery discharging is extremely set, the comparator upset, relay electric-loss, load and protector all disconnect with storage battery, have avoided overdischarge.
Claims (1)
1. accumulator over discharging protector; it is characterized in that: comprise voltage comparator; adjustable voltage-stabiliser tube; relay; potentiometer; light-emitting diode; push-button switch; storage battery; the first resistance; the second resistance; electric capacity and diode; the anodal while of described storage battery and the first end of described push-button switch; the first end of described relay the first normal open switch be connected the first end of the second normal open switch of relay and connect; the negative pole while of described storage battery and the negative pole of electrical appliance; the negative pole of described light-emitting diode; the first end of described electric capacity; the negative power supply input of described voltage comparator; the positive pole of described adjustable voltage-stabiliser tube be connected the first end of potentiometer and connect; the second end while of described potentiometer and the first end of described the first resistance; the cathode power supply input of described voltage comparator; the second end of described electric capacity; the negative pole of described diode; the first end of described relay; the first end of described the second resistance; the second end of described relay the first normal open switch be connected the second end of push-button switch and connect; the sliding end of described potentiometer is connected with the negative signal input of described voltage comparator; the second end of described the first resistance simultaneously with the negative pole of described adjustable voltage-stabiliser tube be connected the positive signal input of voltage comparator and be connected; the output of described voltage comparator simultaneously with the positive pole of described diode be connected the second end of relay and be connected; the second end of described the second resistance is connected with the positive pole of described light-emitting diode, and the second end of the second normal open switch of described relay is connected with the positive pole of described electrical appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201513 CN202737450U (en) | 2012-05-08 | 2012-05-08 | Over-discharge protector of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201513 CN202737450U (en) | 2012-05-08 | 2012-05-08 | Over-discharge protector of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737450U true CN202737450U (en) | 2013-02-13 |
Family
ID=47663112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220201513 Expired - Fee Related CN202737450U (en) | 2012-05-08 | 2012-05-08 | Over-discharge protector of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065043A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Battery under-voltage protection and display circuit |
| CN104184131A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Alarm circuit |
-
2012
- 2012-05-08 CN CN 201220201513 patent/CN202737450U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065043A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Battery under-voltage protection and display circuit |
| CN104065043B (en) * | 2013-03-21 | 2017-02-22 | 海洋王（东莞）照明科技有限公司 | Battery under-voltage protection and display circuit |
| CN104184131A (en) * | 2013-05-27 | 2014-12-03 | 深圳市海洋王照明工程有限公司 | Alarm circuit |
| CN104184131B (en) * | 2013-05-27 | 2017-06-23 | 深圳市海洋王照明工程有限公司 | A kind of warning circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130508 |