CN204258278U - A kind of Ni-MH battery low voltage protection circuit - Google Patents
A kind of Ni-MH battery low voltage protection circuit Download PDFInfo
- Publication number
- CN204258278U CN204258278U CN201420798587.0U CN201420798587U CN204258278U CN 204258278 U CN204258278 U CN 204258278U CN 201420798587 U CN201420798587 U CN 201420798587U CN 204258278 U CN204258278 U CN 204258278U
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- battery
- effect transistor
- field effect
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- protection circuit
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Abstract
The utility model discloses a kind of Ni-MH battery low voltage protection circuit, Ni-MH battery overdischarge can be prevented, realize the protection to Ni-MH battery.The utility model comprises storage battery BT, all be connected and voltage stabilizing didoe VD parallel with one another and field effect transistor V1 with this storage battery BT, the resistance R1 connected with voltage stabilizing didoe VD, and to be connected between voltage stabilizing didoe VD and resistance R1 and to meet the field effect transistor V2 of field effect transistor V1.The utility model circuit is simple, reasonable in design, and it can prevent from causing damage to Ni-MH battery because of overdischarge well, is thus suitable for applying.
Description
Technical field
The utility model relates to a kind of Ni-MH battery low voltage protection circuit.
Background technology
Ni-MH battery is a kind of novel battery, and it is synthesized by hydrogen ion and metallic nickel, Power Reserve more than nickel-cadmium cell 30%, and lighter than nickel-cadmium cell, useful life is also longer, and environmentally safe.But the process that Ni-MH battery is using can not overdischarge, otherwise can damage battery, affects its useful life, thus need Ni-MH battery design under-voltage protection.
Utility model content
For above-mentioned technical deficiency, the utility model provides a kind of Ni-MH battery low voltage protection circuit, can prevent Ni-MH battery overdischarge, protects when its low-voltage.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of Ni-MH battery low voltage protection circuit; comprise storage battery BT; all be connected and voltage stabilizing didoe VD parallel with one another and field effect transistor V1 with this storage battery BT; the resistance R1 connected with voltage stabilizing didoe VD, and to be connected between voltage stabilizing didoe VD and resistance R1 and to meet the field effect transistor V2 of field effect transistor V1.
Further, the utility model also comprises resistance R2, and this resistance R2 one end is connected between storage battery BT and field effect transistor V1, and the other end is connected between field effect transistor V1, V2.
Again further, the model of described field effect transistor V1 is AO4407.
Again further, the model of described field effect transistor V2 is 2N7002.
Compared with prior art, the utility model has following beneficial effect:
The utility model provides a kind of low voltage protection circuit of Ni-MH battery; after access Ni-MH battery; can realize protecting Ni-MH battery overdischarge, guarantee that Ni-MH battery does not cause because voltage is low battery to suffer damage, and then effectively extend its useful life.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1; the utility model is mainly used in protecting Ni-MH battery overdischarge; it comprises storage battery BT; all be connected and voltage stabilizing didoe VD parallel with one another and field effect transistor V1 with this storage battery BT; the resistance R1 connected with voltage stabilizing didoe VD; one end is connected between storage battery BT and field effect transistor V1, and the other end is connected to the resistance R2 between field effect transistor V1, V2, and to be connected between voltage stabilizing didoe VD and resistance R1 and to meet the field effect transistor V2 of field effect transistor V1.In the present embodiment, the model of field effect transistor V1 and field effect transistor V2 is respectively AO4407,2N7002.
Operation principle of the present utility model is: when storage battery BT voltage is higher, and the pressure drop on resistance R1 is higher than the embedding voltage of door of field effect transistor V2, and now field effect transistor V1 is in complete conducting state, Ni-MH battery regular picture.When storage battery BT voltage is lower, the pressure drop on resistance R1 is lower than the embedding voltage of door of field effect transistor V2, and now field effect transistor V1 turns off, and Ni-MH battery does not discharge.And when storage battery BT is in critical condition, field effect transistor V1 is in non-switch state, the ability that the band that now Ni-MH battery exports carries dies down, until stop electric discharge during supply voltage step-down.
Claims (4)
1. a Ni-MH battery low voltage protection circuit; it is characterized in that: comprise storage battery BT; all be connected and voltage stabilizing didoe VD parallel with one another and field effect transistor V1 with this storage battery BT; the resistance R1 connected with voltage stabilizing didoe VD, and to be connected between voltage stabilizing didoe VD and resistance R1 and to meet the field effect transistor V2 of field effect transistor V1.
2. a kind of Ni-MH battery low voltage protection circuit according to claim 1, is characterized in that: also comprise resistance R2, and this resistance R2 one end is connected between storage battery BT and field effect transistor V1, and the other end is connected between field effect transistor V1, V2.
3. a kind of Ni-MH battery low voltage protection circuit according to claim 2, is characterized in that: the model of described field effect transistor V1 is AO4407.
4. a kind of Ni-MH battery low voltage protection circuit according to claim 3, is characterized in that: the model of described field effect transistor V2 is 2N7002.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798587.0U CN204258278U (en) | 2014-12-17 | 2014-12-17 | A kind of Ni-MH battery low voltage protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798587.0U CN204258278U (en) | 2014-12-17 | 2014-12-17 | A kind of Ni-MH battery low voltage protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258278U true CN204258278U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420798587.0U Expired - Fee Related CN204258278U (en) | 2014-12-17 | 2014-12-17 | A kind of Ni-MH battery low voltage protection circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204258278U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561835A (en) * | 2018-03-21 | 2018-09-21 | 成都申川节能环保工程有限公司 | The LED energy-conserving road lamps of accumulator are protected based on low-voltage protection circuit |
| CN108759756A (en) * | 2018-04-04 | 2018-11-06 | 成都众宜天成科技有限公司 | Paint coating thickness based on Ni-MH battery test constantly accurately measures instrument |
| CN108889053A (en) * | 2018-07-11 | 2018-11-27 | 成都新能互联科技有限公司 | Based on low voltage protection circuit lengthen the life type haze prevention and treatment equipment |
| CN109044818A (en) * | 2018-07-19 | 2018-12-21 | 王晓堤 | Can partitioned storage drug medicine box |
| CN110712300A (en) * | 2018-07-11 | 2020-01-21 | 成都众恒智合信息技术有限公司 | Cement mixing plant for building based on supply circuit protection battery |
| CN110749171A (en) * | 2018-07-24 | 2020-02-04 | 成都本润农业科技有限公司 | Tea leaf baking system for effectively protecting nickel-hydrogen battery based on low-voltage protection circuit |
| CN110774982A (en) * | 2018-07-30 | 2020-02-11 | 崇州市瑞杰汽修有限公司 | Passenger vehicle with early warning function when cabin door is abnormally opened |
-
2014
- 2014-12-17 CN CN201420798587.0U patent/CN204258278U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561835A (en) * | 2018-03-21 | 2018-09-21 | 成都申川节能环保工程有限公司 | The LED energy-conserving road lamps of accumulator are protected based on low-voltage protection circuit |
| CN108759756A (en) * | 2018-04-04 | 2018-11-06 | 成都众宜天成科技有限公司 | Paint coating thickness based on Ni-MH battery test constantly accurately measures instrument |
| CN108889053A (en) * | 2018-07-11 | 2018-11-27 | 成都新能互联科技有限公司 | Based on low voltage protection circuit lengthen the life type haze prevention and treatment equipment |
| CN110712300A (en) * | 2018-07-11 | 2020-01-21 | 成都众恒智合信息技术有限公司 | Cement mixing plant for building based on supply circuit protection battery |
| CN109044818A (en) * | 2018-07-19 | 2018-12-21 | 王晓堤 | Can partitioned storage drug medicine box |
| CN110749171A (en) * | 2018-07-24 | 2020-02-04 | 成都本润农业科技有限公司 | Tea leaf baking system for effectively protecting nickel-hydrogen battery based on low-voltage protection circuit |
| CN110774982A (en) * | 2018-07-30 | 2020-02-11 | 崇州市瑞杰汽修有限公司 | Passenger vehicle with early warning function when cabin door is abnormally opened |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Shude Inventor before: Zhu Bifang |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160719 Address after: 518103, Guangdong Province, Fuyong Town, Baoan District Ocean Development Zone, two district, 9, one or two, Shenzhen Patentee after: SHENZHEN DELIPOW BATTERY TECHNOLOGY CO., LTD. Address before: 325014 Zhejiang city of Wenzhou province Ouhai three Yang Huang Yu Cun Si Qian Lian Jian building 6, No. 1 (third) Patentee before: WENZHOU KAITANG ELECTRONIC TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |