CN2540071Y - Connection line retractable handset charger - Google Patents

Abstract

The utility model discloses a connection line retractable handset charger that relates to the technique of portable handset charger with retractable connection line. The technique comprises a shell, a power supply pin, a circuit wafer, a connection line and a handset pin and is characterized in that: a coiling machine is arranged between the circuit wafer and a shell board of the shell; the coiling machine is provided with a positioning device; and the connection line is winded on the coiling machine. The utility model has the advantages of a simple structure, nice shape as well as convenient taking and utilization.

Description

The telescopic charger for mobile phone of line

Technical field

The utility model relates to electronic technology field, the scalable charger for mobile phone correlation technique of particularly portable, line.

Background technology

Mobile phone with charger no matter be transformer type or electronic type, all be that the charging electricity is converted to low-voltage DC, be used for machine is charged.More than two class chargers, particularly battery of mobile phone need not be taken off, the direct charger of cell phone standby charging, its charger line regular meeting is intertwined, and in use causes many inconvenience.

Technology contents

The purpose of this utility model is at above the deficiencies in the prior art, designs a kind of simple in structurely, and good looking appearance portably uses the telescopic charger for mobile phone of line easily.

The utility model is achieved through the following technical solutions:

The telescopic charger for mobile phone of line comprises housing, attaching plug, circuit board, line and Mobile phone plug, in housing, is provided with winder between the fixed head of circuit board and shell plates, and line is reeled thereon.Be provided with the plate center hole and the end in the cavity of the egative film of the wheel body of winder toward the line sheet, the top flat of wheel body is provided with positioning table; Egative film and top flat are connected as a single entity by scroll.Circuit board brace and circuit board axis hole that circuit board is provided with the wheel body seat and matches with egative film line sheet.Circuit board is fixed on the housing, winder is provided with between circuit board and the fixed head by mandrel, be provided with wind spring in the scroll, one end of wind spring is stuck in the mandrel groove of mandrel, the wind spring other end and scroll join, one end of line and egative film line sheet join, be wrapped on the scroll after, the other end passes catcher machine transplanting of rice head behind the wire hole of being located on the shell plates.Also be provided with the take-up button on the shell plates, the fixture block that between the Spring Card end of shell plates and fixed head, is provided with spring and matches with positioning table.The described positioning table of being located on the top flat can be more than one.Be provided with the lightening hole that matches with the circuit part light-emitting diode at the bottom of the shell of housing.

The utility model is simple in structure, and good looking appearance portably uses conveniently.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model cap after opening;

Fig. 2 is an overall schematic of the present utility model;

Fig. 3 is an internal structure schematic perspective view of the present utility model;

Fig. 4 is schematic diagram of circuit board of the present utility model;

Fig. 5 is wheel body of the present utility model and wind spring perspective view;

Fig. 6 is the another direction schematic diagram of internal structure of the present utility model;

Fig. 7 is a winder cut-away view of the present utility model;

Fig. 8 is an egative film brace schematic diagram of the present utility model;

Fig. 9 is a detent mechanism cut-away view of the present utility model;

Figure 10 is a circuit diagram of the present utility model.

Specific implementation method

The telescopic charger for mobile phone of line comprises housing 1, attaching plug 2, circuit board 3, line 4 and Mobile phone plug 5, in housing 1, is provided with winder 6 between the fixed head 120 of circuit board 3 and shell plates 12, and line 4 is reeled thereon.Be provided with the plate center hole 602 and the end in the cavity 601 of the egative film 600 of the wheel body 60 of winder 6 toward line sheet 603, the top flat 604 of wheel body 60 is provided with positioning table 605, and egative film 600 is connected as a single entity by scroll 606 with top flat 604.Circuit board 3 is provided with wheel body seat 30, and is connected with circuit board that egative film line sheet 603 matches and separates sheet 31 and circuit board axis hole 32; Circuit board 3 is fixed on the shell plates 12, winder 6 is provided with between circuit board 3 and the fixed head 120 by mandrel 61, be provided with wind spring 62 in the scroll 606, one end of wind spring is stuck in the mandrel groove 610 of mandrel 61, the wind spring other end and scroll 606 join, one end of line 4 and egative film line sheet 603 join, be wrapped on the scroll 606 after, the other end passes the wire hole be located on the shell plates 12 121 back catcher machine transplanting of rice 5; Also be provided with take-up button 122 on the shell plates 12, the fixture block 64 that between the Spring Card end 123 of shell plates 12 and fixed head 120, is provided with spring 63 and matches with positioning table 605.The telescopic charger for mobile phone of line, the described positioning table of being located on the top flat 604 605 can be more than one.The telescopic charger for mobile phone of line, for ease of prompting, 10 are provided with the lightening hole 100 that matches with the circuit part light-emitting diode at the bottom of the shell of housing 1.

Enforcement circuit of the present utility model as shown in figure 10, circuit input AC100-240V, output 5.7V400mA circuit working principle is as follows:

Operation principle is as follows:

1, exchange AC100-240V through the DB1 rectification, again through C1, L1, type filter circuit, elimination high frequency and low frequency waveform that C2 forms.

2, the direct voltage after the rectification starts bias current through resistance R 1, and conducting when Q1 is powered up has electric current to flow through among the major loop N1, and N2 produces induced voltage.This voltage one tunnel is through R3, and C5 removes to control the switching frequency of Q1, and one the tunnel through D2, and the control voltage of C6 rectifying and wave-filtering is through the duty ratio of PC1 control Q1.When this voltage peak surpassed set point, the PC1 conducting added negative voltage to Q1, and the duty ratio of Q1 is reduced, and made the output voltage of N3 and electric current reduce.

3, the operating current of Q2 control Q1, if the conducting electric current of Q1 strengthens, the pressure pressure drop on the R5 increases, the Q2 conducting is controlled at safe range with the Control current of Q1, with the safety of protection Q1.

4, N3, D3, C8, L2, C9 composing type filtering output circuit.

5, the voltage stabilizing part is made up of PC1, R6, R7, D4, is responsible for the operating voltage that provides stable.

6, restricted portion is made up of R8, R9, Q4, R10, if the output stage short circuit, voltage will directly be added to R8, on the R9, make Q4 that conducting voltage be arranged, Q4 is saturated rapidly, the voltage of D4 is pulled down to the current value that is set to, output voltage and electric current are reduced, reach the current limliting purpose.Change R8, R9 can change output current.

7, charging is changeed the lamp part by R11, R12, R13, R14, R15, R16, LED forms, as long as connect load, and electric current reaches more than the 200mA, at R14, just produce the voltage of 0.9-1.6V between the D5 two ends, this voltage makes the Q3 saturation conduction, and LED transfers red light to by green light.After charging is finished, do not have electric current to pass through, R14 does not just have voltage between the D5 two ends, is converted to green light into red light when becoming circuit for lamp by charging, illustrates that charging finishes.

8, overvoltage protection, as long as output voltage surpasses the magnitude of voltage of D6, D6 is with regard to conducting, the voltage that will exceed is shorted to the loop, makes output short-circuit, thereby plays a protective role.

Claims (3)

1, the telescopic charger for mobile phone of line, comprise housing (1), attaching plug (2), circuit board (3), line (4) and Mobile phone plug (5), it is characterized in that, in housing (1), be provided with winder (6) between the fixed head (120) of circuit board (3) and shell plates (12), line (4) is reeled thereon; Be provided with the plate center hole (602) and the end in the cavity (601) of the egative film (600) of the wheel body (60) of winder (6) toward line sheet (603); The top flat (604) of wheel body (60) is provided with positioning table (605); Egative film (600) is connected as a single entity by scroll (606) with top flat (604); Circuit board (3) is provided with wheel body seat (30) and is connected with circuit board that egative film line sheet (603) matches separates sheet (31) and circuit board axis hole (32); Circuit board (3) is fixed on the shell plates (12), winder (6) is located between circuit board (3) and the fixed head (120) by mandrel (61), be provided with wind spring (62) in the scroll (606), one end of wind spring is stuck in the mandrel groove (610) of mandrel (61), the wind spring other end and scroll (606) join, one end of line (4) and egative film line sheet (603) join, and are wrapped in after scroll (606) goes up, and the other end passes wire hole (121) the back catcher machine transplanting of rice head of being located on the shell plates (12) (5); Also be provided with take-up button (122) on the shell plates (12), the fixture block (64) that between the Spring Card end (123) of shell plates (12) and fixed head (120), is provided with spring (63) and matches with positioning table (605).

2, the telescopic charger for mobile phone of line according to claim 1 is characterized in that, the described positioning table of being located on the top flat (604) (605) can be more than one.

3, the telescopic charger for mobile phone of line according to claim 1 and 2, it is characterized in that the shell of housing (1) at the bottom of (10) be provided with the lightening hole (100) that matches with the circuit part light-emitting diode.

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