CN205489481U - Cell -phone overcharge protection ware that charges - Google Patents
Cell -phone overcharge protection ware that charges Download PDFInfo
- Publication number
- CN205489481U CN205489481U CN201620024376.0U CN201620024376U CN205489481U CN 205489481 U CN205489481 U CN 205489481U CN 201620024376 U CN201620024376 U CN 201620024376U CN 205489481 U CN205489481 U CN 205489481U
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- CN
- China
- Prior art keywords
- mobile phone
- terminal
- connects
- outfan
- input
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a cell -phone overcharge protection ware that charges, a serial communication port, include: the protection circuit that overshoots, the protection circuit that overshoots is connected to the charger, and protection circuit connection cell -phone overshoots. The utility model discloses a cell -phone overcharge protection ware that charges has the cell -phone and is full of the effect that realizes the auto -power -off behind the electricity, both can reduce the unnecessary energy consumption, also can effectual protection mobile phone batteries, and extension mobile phone batteries's life, the utility model discloses use and dismouting are all very convenient.
Description
Technical field
This utility model relates to a kind of protector automatically powered off, and is specifically related to a kind of mobile phone charging and overcharges protector, and this utility model belongs to charge protection field.
Background technology
Nowadays, people are more and more extensive to the utilization of mobile phone, and almost everyone is with mobile phone.This is just related to the problem of mobile phone charging, and after employing one day mobile phone the most by day, mobile phone electricity all can remain little, and fills electricity with and can charge 8 ~ 10 hours to the next morning, and general mobile phone battery after charging 3 ~ 5 hours is just full of before sleeping.This not only results in serious waste of energy, and can make over-charging of battery, causes the life-span expanding and shortening battery.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of mobile phone charging to overcharge protector, is difficult to the technical problem that battery of mobile phone overcharges solving prior art.
In order to realize above-mentioned target, this utility model adopts the following technical scheme that:
Mobile phone charging overcharges protector, it is characterised in that including: overshoot protection circuit, and charger connects overshoot protection circuit, and overshoot protection circuit connects mobile phone.
The charging of aforesaid mobile phone overcharges protector; it is characterized in that; described overshoot protection circuit includes input side, outlet side, current detection circuit, voltage comparator U1A, gate circuit, stable-pressure device, electromagnetic relay K1; input side includes the first terminal and the second terminal, and the first terminal and second terminal of input side are connected with charger；Outlet side includes the 3rd terminal and the 4th terminal, and the 3rd terminal of outfan and the 4th terminal are connected with mobile phone；Electromagnetic relay K1 includes first input end, second input, first outfan, second outfan, current detection circuit one end connects described the first terminal and the input of voltage comparator U1A respectively, the outfan of voltage comparator U1A connects the input of gate circuit, the outfan of gate circuit connects stable-pressure device one end respectively, the first input end of electromagnetic relay K1, current detection circuit other end branch connects the stable-pressure device other end, first outfan of electromagnetic relay K1, described second terminal respectively with second input of electromagnetic relay K1, described 4th terminal connects, 3rd input and described 3rd terminal of described electromagnetic relay K1 connect.
The charging of aforesaid mobile phone overcharges protector, it is characterised in that current detection circuit is for measuring resistance R1.
The charging of aforesaid mobile phone overcharges protector, it is characterised in that gate circuit is not gate U2A.
The charging of aforesaid mobile phone overcharges protector; it is characterized in that, described stable-pressure device includes diode D1, diode D2, and the outfan of not gate U2A connects the positive pole of diode D1; the negative pole of diode D1 connects the negative pole of diode D2, measures the positive pole that the resistance R1 other end connects diode D2.
The charging of aforesaid mobile phone overcharges protector, it is characterised in that also include button J1, and the described measurement resistance R1 other end is connected with first outfan of electromagnetic relay K1 after connecting button J1.
The charging of aforesaid mobile phone overcharges protector, it is characterised in that also include that housing, overshoot protection circuit are arranged in housing.
The charging of aforesaid mobile phone overcharges protector, it is characterised in that described housing includes relative two ends, and one end of housing is provided with USB male joint, and the other end of housing is provided with USB female, and overshoot protection circuit connects USB male joint, USB female；Described USB female is connected with mobile phone through data wire；Described USB male joint is connected with charger.
Of the present utility model have the beneficial effect that mobile phone of the present utility model charging overcharges protector and has the fully charged effect realizing afterwards automatically powering off of mobile phone; both unnecessary energy consumption can have been reduced; also battery of mobile phone can be effectively protected; in the service life of extending cell phone battery, this utility model uses and dismounts the most very convenient.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that the charging of this utility model mobile phone overcharges protector；
Fig. 2 is that the charging of this utility model mobile phone overcharges the structural representation of overshoot protection circuit in protector；
Fig. 3 is that the charging of this utility model mobile phone overcharges the structural representation of electromagnetic relay in protector.
The implication of reference in figure:
1, housing, 2, USB male joint, 3, USB female, 4, overshoot protection circuit.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model made concrete introduction.
With reference to shown in Fig. 1, the charging of this utility model mobile phone overcharges protector, overshoot protection circuit 4, and charger connects overshoot protection circuit 4, and overshoot protection circuit 4 connects mobile phone.This utility model be utilize charging mobile phone battery to complete after; charger can relatively small these characteristics a lot of to the charging current of battery; devise overshoot protection circuit 4; determine whether electromagnetic relay disconnects by the pressure drop size of detection resistance; thus reach the effect automatically powered off; both unnecessary energy consumption can have been reduced, it is possible to be effectively protected battery of mobile phone, the service life of extending cell phone battery.
Further, this utility model devises housing 1, and housing 1 is protection shell, and housing 1 includes that relative two ends, one end of housing 1 are provided with USB male joint 2, and the other end of housing 1 is provided with USB female 3, and overshoot protection circuit 4 connects USB male joint 2, USB female 3；USB female 3 is connected with mobile phone through data wire；USB male joint 2 is connected with charger.Owing to the two ends of protector are respectively male and the female of USB, can respectively with charger for mobile phone and be connected mobile phone data wire be connected, can be convenient to use.
During actual design, that one end of USB male joint 2 can also be designed has the wire connecting USB male joint 2 so that the wire connecting USB male joint 2 connects charger for mobile phone, and USB female 3 is connected with data wire and accesses mobile phone again.
Overshoot protection circuit 4 is arranged in PCB.It is internal that PCB is positioned at housing 1.As shown in Figure 2; overshoot protection circuit 4 includes input side, outlet side, current detection circuit, voltage comparator U1A, gate circuit, stable-pressure device, electromagnetic relay K1; input side includes the first terminal and the second terminal, and the first terminal and second terminal of input side are connected with charger；Outlet side includes the 3rd terminal and the 4th terminal, and the 3rd terminal of outfan and the 4th terminal are connected with mobile phone；Electromagnetic relay K1 includes first input end, second input, first outfan, second outfan, current detection circuit one end connects described the first terminal and the input of voltage comparator U1A respectively, the outfan of voltage comparator U1A connects the input of gate circuit, the outfan of gate circuit connects stable-pressure device one end respectively, the first input end of electromagnetic relay K1, current detection circuit other end branch connects the stable-pressure device other end, first outfan of electromagnetic relay K1, described second terminal respectively with second input of electromagnetic relay K1, described 4th terminal connects, 3rd input and described 3rd terminal of described electromagnetic relay K1 connect.
This utility model is not intended to the particular type of current detection circuit, gate circuit, stable-pressure device, and in the present embodiment, current detection circuit is for measuring resistance R1, and gate circuit is not gate U2A.Stable-pressure device includes diode D1, diode D2, and the outfan of not gate U2A connects the positive pole of diode D1, and the negative pole of diode D1 connects the negative pole of diode D2, measures the positive pole that the resistance R1 other end connects diode D2.The present embodiment K1 is electromagnetic relay; LM3242j chip is voltage comparator; 7404 chips are not gate; D1; D2 is two backward diodes; coordinate the height of the voltage of voltage comparator and non-gate control output, determine that cut-offfing of electromagnetic relay realizes overcharging protection from the height of the voltage of phase inverter output.The alternating current of 220v becomes the DC source of 5v after charger, and charging current is 1 ~ 1.5A.In schematic diagram, UI be input DC source 5V, UO be that out-put supply charges the battery, resistance R1 for measure resistance, K1 is electromagnetic relay, and LM3242j chip is voltage comparator, and 7404 chips are not gate, D1, and D2 is two backward diodes, and j1 is button.
Fig. 3 is the schematic diagram of electromagnetic relay.A is electric magnet, and B is armature, and C is spring, and D is movable contact, and E is stationary contact, and when electric magnet is connected with certain voltage, electric magnet A produces magnetic, inhales lower armature B, so that movable contact D separates with stationary contact E, reaches the effect of power-off.
Power-off protection principle of the present utility model is: during original state (during missed electric source), electromagnetic relay utilizes the elasticity of spring to make movable contact D contact with stationary contact E, when starting to charge up: during battery electric quantity underfill, charging current is relatively large, flow through and measure the electric current of resistance R1 the most greatly, so the pressure drop of resistance R1 can be big, 2 feet at voltage comparator set a magnitude of voltage, the pressure drop that when charging normal, R1 produces can be more than this setting value, so that voltage comparator output high level, low level is become through not gate, it is a low-voltage in conjunction with export after backward diode voltage stabilizing, this low-voltage is not enough so that electromagnetic relay produces enough magnetic and inhales lower armature B, thus movable contact D will not separate with stationary contact E, continue charging；When the electricity of battery of mobile phone is in saturated; charging current can be much smaller; the electric current flowing through measurement resistance R1 is the least; so the pressure drop of resistance R1 can be little; the pressure drop that now R1 produces can be less than this setting value; so that voltage comparator output low level; high level is become through not gate; being a high voltage in conjunction with export after backward diode voltage stabilizing, this high voltage is connected with electromagnetic relay, and electric magnet A can be made to produce enough magnetic; inhale lower armature B; so that movable contact D separates with stationary contact E, reach the effect of power-off, thus realize automatically powering off protection.During charging next time, equally can be through a big electric current, pressure drop is big, voltage comparator output high level, becomes low level by not gate, and a low-voltage is not enough to allow electromagnetic relay hold armature B, so armature B can utilize the elasticity of spring to flick, movable contact D contacts with stationary contact E.Further, this utility model also includes button J1, measures the resistance R1 other end and is connected with first outfan of electromagnetic relay K1 after connecting button J1.The effect of button J1 is: can disconnect button when abnormal condition and carry out protection.
This protector is automatic break protecting; when charging is full of; flow through measure the charging current of resistance can little than battery underfill process; so it is also the least in the pressure drop measuring resistance generation; by voltage comparator meeting output low level, then becoming high level by not gate, the high voltage after backward diode can make electromagnetic relay start working; under inhaling, movable contact D causes and switches off, thus serves the effect of power-off protection.
As can be seen here; the phenomenon overcharged is there is when charging complete in this utility model for various electronic products; and the Self-disconnecting designed overcharges protector; the application of this utility model can be effectively protected the battery of electronic product; extend the life-span of battery; also can reduce the loss of the energy, reach the effect of using electricity wisely.Protector two ends have USB male joint 2 and USB female 3 respectively, in that context it may be convenient to use and can the most conveniently pull down.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry, above-described embodiment limits this utility model, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained the most in any form, all falls within protection domain of the present utility model.
Claims (7)
1. mobile phone charging overcharges protector; it is characterized in that; including: overshoot protection circuit; charger connects overshoot protection circuit; overshoot protection circuit connects mobile phone; described overshoot protection circuit includes input side, outlet side, current detection circuit, voltage comparator U1A, gate circuit, stable-pressure device, electromagnetic relay K1, and input side includes the first terminal and the second terminal, and the first terminal and second terminal of input side are connected with charger；Outlet side includes the 3rd terminal and the 4th terminal, and the 3rd terminal of outfan and the 4th terminal are connected with mobile phone；Electromagnetic relay K1 includes first input end, second input, first outfan, second outfan, current detection circuit one end connects described the first terminal and the input of voltage comparator U1A respectively, the outfan of voltage comparator U1A connects the input of gate circuit, the outfan of gate circuit connects stable-pressure device one end respectively, the first input end of electromagnetic relay K1, current detection circuit other end branch connects the stable-pressure device other end, first outfan of electromagnetic relay K1, described second terminal respectively with second input of electromagnetic relay K1, described 4th terminal connects, 3rd input and described 3rd terminal of described electromagnetic relay K1 connect.
Mobile phone the most according to claim 1 charging overcharges protector, it is characterised in that current detection circuit is for measuring resistance R1.
Mobile phone the most according to claim 2 charging overcharges protector, it is characterised in that gate circuit is not gate U2A.
Mobile phone the most according to claim 3 charging overcharges protector; it is characterized in that; described stable-pressure device includes diode D1, diode D2; the outfan of not gate U2A connects the positive pole of diode D1; the negative pole of diode D1 connects the negative pole of diode D2, measures the positive pole that the resistance R1 other end connects diode D2.
Mobile phone the most according to claim 4 charging overcharges protector, it is characterised in that also include button J1, and the described measurement resistance R1 other end is connected with first outfan of electromagnetic relay K1 after connecting button J1.
6. charge according to the mobile phone described in any one of claim 1 to 5 and overcharge protector, it is characterised in that also include that housing, overshoot protection circuit are arranged in housing.
Mobile phone the most according to claim 6 charging overcharges protector, it is characterised in that described housing includes relative two ends, and one end of housing is provided with USB male joint, and the other end of housing is provided with USB female, and overshoot protection circuit connects USB male joint, USB female；Described USB female is connected with mobile phone through data wire；Described USB male joint is connected with charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024376.0U CN205489481U (en) | 2016-01-12 | 2016-01-12 | Cell -phone overcharge protection ware that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024376.0U CN205489481U (en) | 2016-01-12 | 2016-01-12 | Cell -phone overcharge protection ware that charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489481U true CN205489481U (en) | 2016-08-17 |
Family
ID=56666948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620024376.0U Expired - Fee Related CN205489481U (en) | 2016-01-12 | 2016-01-12 | Cell -phone overcharge protection ware that charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205489481U (en) |
-
2016
- 2016-01-12 CN CN201620024376.0U patent/CN205489481U/en not_active Expired - Fee Related
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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: 20160817 Termination date: 20170112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |