CN204794044U - Low -power consumption nickel -hydrogen battery overvoltage protector - Google Patents
Low -power consumption nickel -hydrogen battery overvoltage protector Download PDFInfo
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- CN204794044U CN204794044U CN201520436533.4U CN201520436533U CN204794044U CN 204794044 U CN204794044 U CN 204794044U CN 201520436533 U CN201520436533 U CN 201520436533U CN 204794044 U CN204794044 U CN 204794044U
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Abstract
The utility model provides a low -power consumption nickel -hydrogen battery overvoltage protector, it is main including the electric access module, voltage acquisition is the module relatively, the module of charging, discharge protection module and voltage testing are crossed to the battery, the electric access module conveys to voltage acquisition comparison module after inserting voltage, voltage acquisition relatively module connects the module of charging, the battery input is connected respectively to the module of charging and the discharge protection module is crossed to the battery, battery output end connected load inserts module and voltage testing, voltage testing connects relatively module of voltage acquisition, the utility model discloses simple structure adopts the battery to cross the discharge protection module, can avoid the battery overdischarge to cause the damage, improves battery life, adopts voltage testing, can realize the precision measurement to battery voltage through the control to divider resistance, prevents that the excessive pressure from arousing that the battery damages, the protection battery.
Description
Technical field
The utility model relates to Ni-MH battery field, particularly relates to a kind of low-power consumption Ni-MH battery over-pressure safety device.
Background technology
Battery is articles for use indispensable in people's daily life, and its volume is changeable, can be a lot of equipment and provides electric power, greatly facilitate the work of people, life.The battery small volume used in the such as mini-plant such as torch, walkman, easy to use, this battery can be rechargeable battery, and the battery of these types all adopts electrochemical principle, its structure is generally arrange electrode on shell, the accumulate body in this Electrode connection shell.
Ni-H cell is the high-energy secondary battery of new generation after ickel-cadmium cell, because it has high power capacity, the feature such as pollution-free and the favor of extremely people, is one of important developing direction of current secondary cell.
Battery is widely used in modern society; but the overvoltage protective module circuit structure that the charging Ni-MH battery produced due to prior art adopts is complicated, cost is high; the voltage detection module adopted measures inaccuracy; frequent meeting causes potential safety hazard because cross long charge or discharge, causes unnecessary loss.
Utility model content
In order to solve the problem; it is simple that the utility model provides a kind of structure; battery over-discharge can be avoided to cause damage; improve battery; can by the control to divider resistance; realize the accurate measurement to cell voltage, prevent overvoltage from causing cell damage, the technical scheme of protection battery:
A kind of low-power consumption Ni-MH battery over-pressure safety device; mainly comprise plant-grid connection module, voltage acquisition comparison module, charging module, battery over-discharge protection module and voltage detection module; voltage acquisition comparison module is sent to after plant-grid connection module access voltage; voltage acquisition comparison module connects charging module; charging module connects cell input terminal and battery over-discharge protection module respectively; battery output connects load access module and voltage detection module, and voltage detection module connects voltage acquisition comparison module.
As preferably; battery over-discharge protection module comprises relay, diode B, diode C, triode B, resistance F, resistance G; relay one pin is connected with battery positive; relay two pin is unsettled; relay tripod is connected with relay four pin, diode B negative terminal; and relay tripod is connected with the anode of charging module; collector electrode, the diode B anode of relay five pin and triode B are connected; the base stage of triode B is connected with resistance F one end, resistance G one end; the other end of resistance F is connected with the anode of voltage-stabiliser tube C, the other end ground connection of resistance G.
As preferably, voltage detection module comprises voltage transformation module, main control unit, comparator, voltage transformation module connects Input voltage terminal and main control unit one end respectively, main control unit pout holds contact resistance D one end, resistance D other end connecting triode A base stage, triode A emitter contact resistance B one end, Input voltage terminal, triode A collector electrode contact resistance C successively, the resistance B other end, resistance A, main control unit pin holds and connects comparator output terminal, comparator negative input is contact resistance E one end respectively, diode A negative terminal, diode A positive ending grounding, comparator electrode input end is connected with resistance C one end.
The beneficial effects of the utility model are:
(1) the battery over-discharge protection module of the utility model employing, can avoid battery over-discharge to cause damage, improves battery.
(2) the utility model increases voltage detection module, can, by the control to divider resistance, realize, to the accurate measurement of cell voltage, preventing overvoltage from causing cell damage, protection battery.
Accompanying drawing explanation
Fig. 1 is each module connection structure block diagram of the present utility model;
Fig. 2 is battery over-discharge protection module circuit diagram of the present utility model;
Fig. 3 is voltage detection module circuit diagram of the present utility model.
Embodiment
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, execution mode of the present utility model is described in further detail.
As shown in Figure 1, a kind of low-power consumption Ni-MH battery over-pressure safety device, mainly comprise plant-grid connection module 1, voltage acquisition comparison module 2, charging module 3, battery over-discharge protection module 4 and voltage detection module 5, plant-grid connection module 1 is sent to voltage acquisition comparison module 2 after accessing voltage, voltage acquisition comparison module 2 connects charging module 3, charging module 3 connects battery 6 input and battery over-discharge protection module 4 respectively, battery 6 output connects load access module 7 and voltage detection module 5, voltage detection module 5 connects voltage acquisition comparison module 2.
As shown in Figure 2, battery over-discharge protection module 4 comprises relay 8, diode B2c, diode C3c, triode B2b, resistance F6a, resistance G7a, relay 8 one pin 81 is connected with battery 6 anode, relay 8 two pin 82 is unsettled, relay 8 tripod 83 and relay 8 four pin 84, diode B2c negative terminal connects, and relay 8 tripod 83 is connected with the anode of charging module 3, the collector electrode of relay 8 five pin 85 and triode B2b, diode B2c anode is connected, the base stage of triode B2b and resistance F6a one end, resistance G7a one end connects, the other end of resistance F6a is connected with the anode of voltage-stabiliser tube C3c, the other end ground connection of resistance G7a, when there being charging voltage, make triode B2b conducting, have between relay 8 four pin 84 and five pin 85 and flow through certain electric current, relay 8 adhesive, namely a pin 81 is communicated with tripod 83, charging module 3 charges to battery 6.When charging module 3 disconnects; battery 6 regular picture; when cell voltage be enough to maintain relay 8 close time; load normal power supply given by battery 6; when cell voltage drops to a certain degree, deficiency thinks that relay 8 closes, and battery discharge loop disconnects; protect battery over-discharge, thus effectively extend the useful life of battery.When relay 8 disconnects, triode B2b ends, and electric current residual between relay 8 four pin 84 and five pin 85 is discharged by diode B2c, thus protects relay 8 and can not be burned.The battery over-discharge protection module that the utility model adopts, can avoid battery over-discharge to cause damage, improves battery.
As shown in Figure 3, voltage detection module 5 comprises voltage transformation module 51, main control unit 52, comparator 53, voltage transformation module 51 connects Input voltage terminal and main control unit 52 one end respectively, main control unit 52pout holds contact resistance D4a one end, resistance D4a other end connecting triode A1b base stage, triode A1b emitter contact resistance B2a one end, Input voltage terminal, triode A1b collector electrode contact resistance C3a successively, the resistance B2a other end, resistance A1a, main control unit 52pin holds and connects comparator 53 output, comparator 53 negative input is contact resistance E5a one end respectively, diode A1c negative terminal, diode A1c positive ending grounding, comparator 53 electrode input end is connected with resistance C3a one end.Resistance A1a, resistance B2a, resistance C3a are divider resistance, and when resistance A1a, resistance B2a, resistance C3a are fixed resistance, resistance is known, thus determines the scope of cell voltage.Resistance A1a, resistance B2a, resistance C3a are set to adjustable resistance; then can determine the different voltage range of cell voltage; the utility model increases voltage detection module; can by the control to divider resistance; realize the accurate measurement to cell voltage; prevent overvoltage from causing cell damage, protection battery.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (3)
1. a low-power consumption Ni-MH battery over-pressure safety device, mainly comprise plant-grid connection module (1), voltage acquisition comparison module (2), charging module (3), battery over-discharge protection module (4) and voltage detection module (5), it is characterized in that: after described plant-grid connection module (1) access voltage, be sent to described voltage acquisition comparison module (2), described voltage acquisition comparison module (2) connects described charging module (3), described charging module (3) connects described battery (6) input and described battery over-discharge protection module (4) respectively, described battery (6) output connects load access module (7) and described voltage detection module (5), described voltage detection module (5) connects described voltage acquisition comparison module (2).
2. a kind of low-power consumption Ni-MH battery over-pressure safety device according to claim 1, it is characterized in that: described battery over-discharge protection module (4) comprises relay (8), diode B(2c), diode C(3c), triode B(2b), resistance F(6a), resistance G(7a), relay (8) one pin (81) is connected with described battery (6) anode, relay (8) two pin (82) is unsettled, relay (8) tripod (83) and relay (8) four pin (84), diode B(2c) negative terminal connection, and relay (8) tripod (83) is connected with the anode of described charging module (3), relay (8) five pin (85) and triode B(2b) collector electrode, diode B(2c) anode be connected, triode B(2b) base stage and resistance F(6a) one end, resistance G(7a) one end connection, resistance F(6a) the other end and voltage-stabiliser tube C(3c) anode be connected, resistance G(7a) other end ground connection.
3. a kind of low-power consumption Ni-MH battery over-pressure safety device according to claim 1, it is characterized in that: described voltage detection module (5) comprises voltage transformation module (51), main control unit (52), comparator (53), voltage transformation module (51) connects Input voltage terminal and described main control unit (52) one end respectively, described main control unit (52) pout holds contact resistance D(4a) one end, resistance D(4a) other end connecting triode A(1b) base stage, triode A(1b) emitter contact resistance B(2a) one end, Input voltage terminal, triode A(1b) collector electrode contact resistance C(3a successively), resistance B(2a) other end, resistance A(1a), described main control unit (52) pin holds and connects described comparator (53) output, described comparator (53) negative input is contact resistance E(5a respectively) one end, diode A(1c) negative terminal, diode A(1c) positive ending grounding, described comparator (53) electrode input end and resistance C(3a) one end is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436533.4U CN204794044U (en) | 2015-06-24 | 2015-06-24 | Low -power consumption nickel -hydrogen battery overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436533.4U CN204794044U (en) | 2015-06-24 | 2015-06-24 | Low -power consumption nickel -hydrogen battery overvoltage protector |
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| Publication Number | Publication Date |
|---|---|
| CN204794044U true CN204794044U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520436533.4U Expired - Fee Related CN204794044U (en) | 2015-06-24 | 2015-06-24 | Low -power consumption nickel -hydrogen battery overvoltage protector |
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| CN (1) | CN204794044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953556A (en) * | 2015-06-24 | 2015-09-30 | 安徽亿诺新能源有限责任公司 | Low-power-consumption overvoltage protective device for nickel-metal hydride battery |
| CN112748281A (en) * | 2019-10-31 | 2021-05-04 | 现代摩比斯株式会社 | Average power measuring device and method for fuel cell, and voltage measuring device |
-
2015
- 2015-06-24 CN CN201520436533.4U patent/CN204794044U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953556A (en) * | 2015-06-24 | 2015-09-30 | 安徽亿诺新能源有限责任公司 | Low-power-consumption overvoltage protective device for nickel-metal hydride battery |
| CN112748281A (en) * | 2019-10-31 | 2021-05-04 | 现代摩比斯株式会社 | Average power measuring device and method for fuel cell, and voltage measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |