CN2151572Y - Protective charger with multiple functions display - Google Patents

Abstract

The utility model relates to a charger. The existing charger with big size, heavy weight and high cost can only charge up the 5# battery, and simultaneously the existing charger can not display the electric capacity and does not have the display function after full charge. A contact is arranged on the opening end of a box cover of the utility model, and a movable contact piece and a fixed contact piece are arranged in a box body which corresponds to the contact. A voltage reduction capacitor is arranged in the box body, and a current selected switch is arranged on the casing. Thus, the utility model with absolutely safe use can respectively or simultaneously charge up 5# to 7# batteries. The utility model has the advantages of wide application range, multiple display, small size, light weight and low cost.

Description

Protective charger with multiple functions display

The utility model relates to a kind of charger, particularly a kind of protection charger with multiple function and demonstration, and it is applicable to all occasions such as all kinds of office spaces, universities and colleges, family.

Existing charger can be divided into two classes.One class is charged after adopting the transformer step-down rectifier, so its volume is big, Heavy Weight, cost height, and transformer itself will generate heat when working, and influenced the quality of charger; Simultaneously, its moisture resistance can be poor, and useful life is short, can not show capacitance.Another kind of is to adopt capacitance decompression, but it can only be to 5 ^#Rechargeable battery charges, can not be to 6 ^#And 7 ^#Battery charges, and must two batteries fill simultaneously, and applicability is narrower, and profile is not attractive in appearance, and simultaneously, equally also there is the defective that can not show capacitance in it.

The purpose of this utility model is to overcome existing above-mentioned deficiency in the prior art, and provides that a kind of volume is little, cost is low, has the protection charger of multiple function and demonstration.

The purpose that the utility model proposed can be achieved through the following technical solutions: the opening end at lid is provided with contact, and in the box body that matches with this contact movable contact spring and fixed touching plate is installed, and decompression capacitor is installed in the box body.

Description of drawings is as follows:

Fig. 1 is a structure sectional plan view of the present utility model.

Fig. 2 is a structure cutaway top view of the present utility model.

Fig. 3 is a battery case lid structure cutaway view of the present utility model.

Fig. 4 is circuit theory diagrams of the present utility model.

Fig. 5 is another kind of circuit theory diagrams of the present utility model.

Following the utility model will be described in further detail in conjunction with the accompanying drawings and by embodiment.

Referring to Fig. 1, Fig. 2, present embodiment is an example to fill two batteries, this charger mainly is made up of attaching plug 1, shell 4, battery adjustable plate 7 and lid 6, attaching plug 1 is fixed on the plug frame 2, and plug frame 2 flexibly connects with shell 4, and an end of lid 6 also flexibly connects with shell 4, battery adjustable plate 7 is affixed with extension spring 12,5 of battery mountings are fixed in the box body 8, and current selected switch 3 is installed on the shell 4 (has two grades), are used for selecting to fill 5 ^#Or 6 ^#, 7 ^#Battery in order to indicate charging process and to be recharged the capacity in pond, is provided with charging process indication luminous tube 15,17 and is recharged tankage indication luminous tube 16,18; On the circuit board 13 electric elements are installed, decompression capacitor 14 is installed in the box body 8.9 is contact, and 10 is movable contact spring, and 11 is fixed touching plate.

Referring to Fig. 3, contact 9 is fixed on the opening end of lid 6, and movable contact spring 10 and fixed touching plate 11 are installed in the box body 8 that matches with this contact 9; When lid 6 covered, contact 9 withstood movable contact spring 10, and movable contact spring 10 is contacted with fixed touching plate 11, and line conduction is promptly chargeable; After lid 6 was opened, contact 9 left movable contact spring 10, and movable contact spring 10 and fixed touching plate 11 are separated, and line interruption makes the use of charger have the property of being perfectly safe thus.

Referring to Fig. 4, circuit adopts electric capacity 14 and resistance 19 step-downs, 20 rectifications of constant-current characteristics rectifying tube, 25,26 is No. two charging circuit voltage-stabiliser tubes, and 15,17 are charging process indication luminous tube, and 16,18 for being recharged tankage indication luminous tube, bright entirely when full charge, 21,22,23,24 for filling 5 respectively ^#-7 ^#The current regulating resistance of battery.Now to fill two joints 5 ^#Nickel-cadmium cell is an example, is described as follows: earlier two joints are recharged pond 29,30 and put on the battery adjustable plate 7 by polarity, build lid 6, make internal switch (promptly moving, fixed touching plate 10,11) conducting, owing to be to fill 5 ^#Battery; so current switch conducting resistance 21; 23; battery capacity indication this moment luminous tube 16; 18 is little bright or do not work; show thus and be recharged pond 29; 30 existing capacity; then plug 1 is inserted supply socket; carry out the constant current charge of 50mA electric current; charging process indication luminous tube 15; 17 is bright entirely this moment; and battery capacity indication luminous tube 16; 18 is little bright; cause at this moment two joints is recharged pond 29; 30 magnitudes of voltage are less than rated value; voltage-stabiliser tube 25; 26 are in cut-off state; charging current is respectively by charging process indication luminous tube 15; 17; all flow into two joints and be recharged pond 29; 30; along with being recharged cell voltage, charging process raises gradually; battery capacity indication luminous tube 16; 18 brighten gradually; when reaching, voltage is recharged pond 29; during 30 maximum voltage value (greater than rated value); the also corresponding voltage-stabiliser tube 25 that is elevated to of the voltage at AC and BC two ends; 26 conductings; make AC; the BC both end voltage is stabilized in rated value; be recharged pond 29; 30 voltages no longer raise; and vised the luminous tube 15 of charging process indication at this moment; 17 were ended by complete bright transferring to, and battery capacity indication luminous tube 10; 18 is bright entirely; placed restrictions on and be recharged pond 29; 30 overcharge obtained protection.27,28 is current-limiting resistance.

This charger can also show battery itself whether short circuit or open circuit, when beginning to charge, battery capacity indication luminous tube 16,18 does not work if charging process indication luminous tube 15,17 is bright, illustrate and be recharged pond 29,30 internal short-circuits, if charging process indication luminous tube 15,17 and battery capacity indication luminous tube 16,18 are bright entirely, then explanation is recharged pond 29,30 inner open circuits.

As filling 6 ^#Or 7 ^#Battery, if with current selected switch from 3a, 3 ' a get to 3b, 3 ' b can realize.

Referring to Fig. 5, it can replace the circuit of Fig. 4, and its function is constant; in omitting voltage-stabiliser tube 26, current-limiting resistance 23,24(Fig. 4) after, and by voltage-stabiliser tube 25 unified voltage stabilizings, make to be recharged pond 29,30 energy full charge equally; and can not cause and overcharge, thereby be protected.

In addition, this charger can also fill a joint 5 separately ^#-7 ^#Battery, or correspondingly change the size of box body 8 and the components and parts numerical value on the circuit board 13, make it to fill multiple batteries, and can fill 1 ^#-8 ^#Battery can also be as required, replaces attaching plug 1 and plug frame 2 in the present embodiment with connecting plug.

The utility model compared with prior art has the following advantages: 1, reasonable in design, and use is perfectly safe, and the moisture resistant performance is good, is suitable for the scope wide (between the 140V-240V) of mains fluctuations; 2, applied widely, can be to nickel-cadmium cell 5^＃－7 ^＃Reach rechargeable type alkali manganese dry cell and charge, also can charge to general dry battery increases the service life, and can fill separately a batteries, also can fill simultaneously multiple batteries; 3, the function that shows behind the full charge is arranged, the function that prevents battery overcharge is arranged, the function that shows the short circuit of battery own, open circuit is arranged; 4, volume is little, in light weight, cost is low, remarkable in economical benefits; 5, good looking appearance, and be applicable to that out on tours carries.

Claims (3)

1, a kind of protection charger that multiple function and demonstration are arranged; it comprises shell, lid, battery adjustable plate, attaching plug and circuit board; electric elements are installed on the circuit board; one end of lid and shell flexibly connect; battery adjustable plate and extension spring are affixed; it is characterized in that: the opening end at lid 4 is provided with contact 9, and in the box body 8 that matches with this contact 9 movable contact spring 10 and fixed touching plate 11 is installed, and decompression capacitor 14 is installed in the box body 8.

2, charger as claimed in claim 1 is characterized in that: attaching plug 1 is fixed on the plug frame 2, and plug frame 2 flexibly connects with shell 4.

3, charger as claimed in claim 1 is characterized in that: current selected switch 3 is installed on the shell 4.

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