CN203883466U

CN203883466U - Multifunctional electric power output protecting device

Info

Publication number: CN203883466U
Application number: CN201420243310.1U
Authority: CN
Inventors: 陈立邦; 吴佳仪; 杨子郁; 陈力铨; 高国文
Original assignee: RONGSHIJING TECHNOLOGY Co Ltd
Current assignee: RONGSHIJING TECHNOLOGY Co Ltd
Priority date: 2014-05-13
Filing date: 2014-05-13
Publication date: 2014-10-15
Anticipated expiration: 2024-05-13

Abstract

A multifunctional electric power output protecting device comprising a protecting device body and a circuit board. The protecting device body comprises an upper cover and a lower cover and has an accommodating space inside. The circuit board is disposed in the accommodating space of the protecting device body. The circuit board comprises an input port, an output port, a start-and-stop element, a detecting element and a manual forcing device, wherein the manual forcing device is electrically connected with one end of the detecting element, one end of the start-and-stop element is electrically connected with the input port, the other end of the start-and-stop element is electrically connected with the output port, one end of the detecting element is electrically connected with the input port, and the other end of the detecting element is electrically connected with the output port. With the start-and-stop element and the detecting element of the circuit board, when a user charges an external load with an external power device, the effect of preventing reverse current back-charge can be achieved through the start-and-stop element and the effects of overload disconnection and current-limiting protection can be achieved through the detecting element and the objective of multifunctional electric power output can be achieved.

Description

Multifunction power output protecting device

Technical field

The utility model relates to a kind of multifunction power output protecting device; espespecially a kind of keying element of its circuit board and detecing element are available for users to when external power supply device charges for external loading; can open and close element by this and reach the effect that prevents that backward current from recharging; can reach by this detecing element the effect of overload broken string and current-limiting protection again, and then reach the object of multifunction power output protection.

Background technology

Press, when generally wish is charged to external loading or storage battery 92 on the market now, refer to shown in Fig. 1, after being electrically connected mutually with charging wire 91 and load or storage battery 92 by this power output apparatus 90 or charger, to reach immediately the effect of charging, and then reach the object of load or storage battery 92 chargeable uses;

Existing power output apparatus 90, though it can reach the effect of charging immediately, so but because of this power output apparatus 90 and load, or storage battery 92 is when be electrically connected mutually, this power output apparatus 90 has at once a large amount of electric currents and produces, for load, or storage battery 92 charges, therefore, the excessive situation of electric current that very easily causes this power output apparatus 90 to have moment output power, and then cause load, or storage battery 92 has excess Temperature and the doubt that produces explosion hazard, in addition, again because of this power output apparatus 90 and load, or in the middle of storage battery 92 chargings, very easily there is reverse current to produce and be back to power output apparatus 90, and cause power output apparatus 90 to have damage, the disappearance of burning,

Hereat, how above-mentioned disappearance is forgone, be this case invention human desires technical solution difficulty place.

Utility model content

Because existing power output apparatus, because this has the excessive situation of electric current that very easily causes this power output apparatus to have moment output power, and then cause load, or storage battery has excess Temperature and the doubt that produces explosion hazard, and cause power output apparatus to have damage, the disappearance of burning, therefore the purpose of this utility model is to provide a kind of multifunction power output protecting device, keying element and detecing element by its circuit board are available for users to when external power supply device charges for external loading, can open and close element by this and reach the effect that prevents that backward current from recharging, can reach by this detecing element the effect of overload broken string and current-limiting protection again, and then reach the object of multifunction power output protection.

For reaching the above object, the utility model provides a kind of multifunction power output protecting device, and it comprises:

Protective device main body, this protective device main body is provided with upper cover and lower cover, is provided with accommodation space again in this protective device main body;

Circuit board, this circuit board is arranged in the accommodation space of protective device main body, this circuit board is provided with input port, output port, keying element, detecing element and hand-operated forced device again, this hand-operated forced device is electrically connected mutually with detecing element, this keying element one end is electrically connected mutually with input port again, this keying element other end is electrically connected mutually with output port, and this detecing element one end is electrically connected mutually with input port again, and this detecing element other end is electrically connected mutually with output port;

The utility model provides multifunction power output protecting device; keying element and detecing element by its circuit board are available for users to when external power supply device charges for external loading; can open and close element by this and reach the effect that prevents that backward current from recharging; can reach by this detecing element the effect of overload broken string and current-limiting protection again, and then reach the object of multifunction power output protection.

Accompanying drawing explanation

Fig. 1 is existing three-dimensional combination schematic diagram.

Fig. 2 is perspective exploded view of the present utility model.

Fig. 3 is three-dimensional combination schematic diagram of the present utility model.

Fig. 4 is the view that the utility model power supply source device and load are used.

Fig. 5 is block schematic diagram of the present utility model.

Fig. 6 is the block schematic diagram after its keying element of the utility model starts.

Fig. 7 is the block schematic diagram after its hand-operated forced device of the utility model starts.

[main element symbol description]

90 ... power output apparatus

91 ... charging wire

92 ... storage battery

10 ... protective device main body

101 ... accommodation space

11 ... upper cover

12 ... lower cover

13 ... open-work

20 ... circuit board

21 ... input port

22 ... output port

30 ... open and close element

40 ... detecing element

50 ... hand-operated forced device

51 ... warning element

60 ... supply unit

61 ... power transmission line

70 ... load

71 ... charging wire.

Embodiment

Refer to shown in Fig. 2, Fig. 3, the utility model provides a kind of multifunction power output protecting device, and it comprises:

Protective device main body 10, this protective device main body 10 is provided with a upper cover 11 and lower cover 12, is provided with accommodation space 101 again in this protective device main body 10, and this protective device main body 10 can be provided with open-work 13;

Circuit board 20, this circuit board 20 is arranged in protective device main body 10 its accommodation spaces 101, and this circuit board 20 is provided with input port 21 again, output port 22, open and close element 30, detecing element 40, with hand-operated forced device 50, this hand-operated forced device 50 can be electrically connected mutually with detecing element 40, this hand-operated forced device 50 can be corresponding with open-work 13 positions again, this opens and closes element 30 one end and can be electrically connected mutually with input port 21, these keying element 30 other ends can be electrically connected mutually with output port 22 again, these detecing element 40 one end can be electrically connected mutually with input port 21, these detecing element 40 other ends can be electrically connected mutually with output port 22 again, these keying element 30 initial states are the not conducting of opening a way of OFF state, and as shown in Figure 5, this keying element 30 can be the element of manufacture of semiconductor, or electromechanical element, this keying element 30 can be FET again, or MOSFET, or JFET, or relay, this detecing element 40 can be MCU, or comparator, or amplifier, this circuit board 20 is provided with warning element again, and this warning element 51 can be electrically connected mutually with detecing element 40, and this warning element 51 can be buzzer again, or light-emitting component, or liquid crystal indicator,

Refer to shown in Fig. 4, Fig. 5, by the utility model further power supply source device 60 with power transmission line 61 and input port 21, be electrically connected mutually, its output port 22 of the utility model can be electrically connected with charging wire 71 mutually with load 70 again, and be the OFF not conducting of opening a way by this circuit board 20 its initial states that open and close elements 30, and can reach avoid the positive terminal of charging wire 71 touch with negative terminal together with time, there is moment to cause the situation of large electric current generation, and then can reach the effect of supply unit 60 short-circuit protections;

In addition, refer to shown in Fig. 6, if when Vo end has the external loading of connection 70 voltage, the voltage that these circuit board 20 its detecing elements 40 detect this Vo end is immediately greater than 0V, transmit at once one and control signal to keying element 30, and make this keying element 30 become ON state from OFF, be short circuit conducting, and then can by Vi end, electric power transfer be held by power supply source device 60 to the effect of charging to reach confession load 70 to Vo;

Refer to Fig. 5, shown in Fig. 6, the change in voltage between Vi end and Vo end can be detected and record to these circuit board 20 its detecing elements 40 at any time, or the change in voltage of Vo end self, and by the voltage change between this Vi end and Vo end, or the voltage change of Vo end self, can judge this load 70 and whether leave the effect of Vo end, therefore, if when Vo end has been left in load 70, this detecing element 40 transmits at once one and controls signal to keying element 30, and make this keying element 30 become the not conducting of opening a way of OFF state from ON, and then reach supply unit 60 its electric power and cannot be transferred to by Vi end the effect of Vo end, to reach the effect of circuit protection, whereby, if when detecing element 40 detects Vo terminal voltage while being greater than Vi terminal voltage, this detecing element 40 transmits at once one and controls signal to keying element 30, and make this keying element 30 become OFF state from ON, to form unidirectional current, export and prevent that the electric current of Vo end from having reverse backflow to the situation of Vi end, if again when detecing element 40 detects Vi terminal voltage while being greater than Vo terminal voltage, and reach predefined set point, the electric current that represents this Vi Vo that end flows through end has reached predefined current value, now, this detecing element 40 transmits one and controls signal to keying element 30, and make this keying element 30 become OFF state from ON, and then can reach the effect of output current overload or current-limiting protection,

In addition, coordinate and consult shown in Fig. 5, if when this detecing element 40 is electrically connected mutually with output port 22, detect this output port 22 while having negative voltage to produce, by this detecing element 40, reach the load 70 of learning that this output port 22 connects, or external cell device is that both positive and negative polarity connects instead, and can not sent a signal to, this detecing element 40 opens and closes element 30, and then to make this keying element 30 be still the not conducting of opening a way of OFF state, simultaneously, this detecing element 40 transmits a signal at once to warning element 51, and make this warning element 51 can alarming sound, or light shows, and then reach and remind user to have both positive and negative polarity to connect anti-situation, to promote circuit safety,

Refer to shown in Fig. 7, by the utility model, be provided with hand-operated forced device 50, if force when OFF becomes ON state when user must open and close this element 30, can be by starting this hand-operated forced device 50, this hand-operated forced device 50 can transmit a signal to detecing element 40, when this detecing element 40 receives this signal, can transmit immediately one and control signal to keying element 30, and make this keying element 30 become ON from OFF, and by being set with Preset Time in this hand-operated forced device 50, when passing through the Preset Time of this setting, this keying element 30 can become OFF state by ON automatically, to reach the object of circuit protection, in addition, when user's wish starts this hand-operated forced device 50, whether this detecing element 40 can be detected this output port 22 in advance has negative voltage to produce, if while having negative voltage to produce, stop transmitting one and control signal to keying element 30, and make this keying element 30, it is still OFF state,

The above, be only preferred embodiment of the present utility model, when can not be in order to limit the enforceable scope of the utility model, all practise in the personage of this industry variation and the modification that obviously can do, all should be considered as not departing from flesh and blood of the present utility model.

Claims

1. a multifunction power output protecting device, is characterized in that comprising:

Circuit board; this circuit board is arranged in the accommodation space of protective device main body; this circuit board is provided with input port, output port, keying element, detecing element and hand-operated forced device again; this hand-operated forced device is electrically connected mutually with detecing element one end; this keying element one end is electrically connected mutually with input port again; this keying element other end is electrically connected mutually with output port, and this detecing element one end is electrically connected mutually with input port again, and this detecing element other end is electrically connected mutually with output port.

2. multifunction power output protecting device as claimed in claim 1, is characterized in that: this keying element initial state is OFF.

3. multifunction power output protecting device as claimed in claim 1, is characterized in that: element or electromechanical element that this keying element is manufacture of semiconductor.

4. multifunction power output protecting device as claimed in claim 1, is characterized in that: this keying element is FET or MOSFET or JFET or relay.

5. multifunction power output protecting device as claimed in claim 1, is characterized in that: this detecing element is MCU or comparator or amplifier.

6. multifunction power output protecting device as claimed in claim 1, is characterized in that: this circuit board is provided with warning element.

7. multifunction power output protecting device as claimed in claim 6, is characterized in that: this warning element is buzzer or light-emitting component or liquid crystal indicator.