CN2058041U

CN2058041U - Special self-charging cell for electric shaver

Info

Publication number: CN2058041U
Application number: CN89215307U
Authority: CN
Inventors: 王晓波; 蒋欣军; 侯杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-08-22
Filing date: 1989-08-22
Publication date: 1990-06-06

Abstract

The utility model relates to a special electric cell with a built-in charging circuit for electric shavers. The utility model integrates an accumulator cell, the charging circuit and a power plug. The utility model is provided with a safety switch with the electric shock prevention. The outside dimension of the utility model is the same with that of a dry electric cell of the second type. The utility model directly replaces the dry electric cell of the second type to be arranged in a common electric shaver, has no use of a special charger when charged, utilizes the power plug arranged on the electric cell to be directly inserted on a 220V alternating current socket to charge, and has the charging time of 14 to 16 hours, the discharging working time greater than 30 minutes (the discharging current is 300m), and the service life with more than 500 times of the charging and discharging times.

Description

Special self-charging cell for electric shaver

The special battery of charging circuit is equipped with in the inside that a kind of moving shaver of powering uses.

Electric shaver power consumption is bigger, and the user needs often to change dry cell.If use the storage battery with volume, then the user also needs to buy a special charger.Though there is the rechargeable type electric shaver of import to sell on the market, cost an arm and a leg, ordinary consumer can't be made inquiries.

Characteristics of the present utility model are that storage battery, charging circuit, attaching plug are incorporated into one, overall dimensions are identical with common No. 2 dry cells, can directly be installed on and replace dry cell power supply in the common electric shaver, make the common electric shaver possess charge function, during charging, utilize battery its own power source plug, the self-charging battery is directly inserted on the 220V AC Power supply socket charge.Owing to the electric shaver original structure is not done any change, so electric shaver still can use dry cell power supply in case of necessity.

Structure of the present utility model will be illustrated in conjunction with following figure.

Fig. 1 is the external form figure of a kind of concrete structure of self-charging type battery.

Fig. 2 is the shaft side figure of self-charging type battery upper and lower casing mechanical structure.

Fig. 3 is the longitudinal sectional drawing of this battery machine structure along the A-A line.

Fig. 4 is the profile of this battery machine structure along the C-C line.

Fig. 5 is the part sectioned view (right view) of this battery machine structure along the B-B line.

Fig. 6 is the circuit theory diagrams of self-charging type battery.

Fig. 7 is the part drawing of folding type attaching plug, safety switch contact shoe and the battery positive electrode of this battery.

The self-charging type battery is made up of upper shell 1, lower house 2, folding type attaching plug, storage battery, charging circuit, safety switch.

Upper shell 1 and lower house 2 are all made with the engineering plastics injection moulding, on upper shell, be shaped on the mounting groove 3 of folding type attaching plug and the film trap 4 of contact chip, the upper shell two ends are equipped with positive electrode 5 and negative electrode 6 respectively, and there is fixed pin holes 7 side, and safety switch chamber 8 is arranged in the upper shell.Last lower house is integral with fin and engagement.

The charging circuit of this battery and storage battery all are loaded in the housing, the numerical value that the 220V alternating current is extremely stipulated through decompression capacitor C step-down, current limliting, obtain low-voltage direct through D1～D4 bridge full-wave rectifier again, carry out constant current charge through light-emitting diode D5 and shunt resistance R2 accumulators.The effect of discharge resistance R1 is the remaining electric charge in the power down container of releasing rapidly after charging finishes.Light-emitting diode is made charging indication usefulness, and shunt resistance is used for adjusting the size of current that flows through light-emitting diode.

The folding type attaching plug is made up of contact chip 9, spring washer 10, conductive spacer 11, holddown spring 12, steady pin 13.Steady pin 13 usefulness engineering plastics are made, and during installation steady pin are penetrated pin-and-hole 7, contact chip, spring washer, holddown spring and conductive spacer are fixed in the mounting groove 3 of upper shell.Contact chip can steady pin be that axle is done 90 ° of rotations, and the axial compressive force that is produced by holddown spring 12 acts on the contact chip by spring washer 10, has suitable damping when making the contact chip rotation.During charging contact chip is rotated up 90 °, promptly become an attaching plug.Charging finishes contact chip is pressed in the film trap 4 of upper shell, and this moment, contact chip used as the discharge flow deflector of safety switch.

The effect of safety switch is that the positive pole 5 and the negative pole 6 of battery is not with high-tension electricity when making charging.It is made up of contact shoe 14, contact sets 15, spring 16, discharge flow deflector 9.Contact sets is made with the nickel plating copper sheet, and moulds and cast from the contact shoe.When the discharge flow deflector was pressed into film trap 4, under the effect of spring 16, two groups of contacts were close to respectively on the flow deflector of the left and right sides, made positive and negative electrode and the positive electrode 5 and negative electrode 6 connections of storage battery.When the discharge flow deflector lifts 90 ° when using as the attaching plug contact chip, two groups of contacts are all unsettled, the both positive and

negative polarity

5,6 of battery and charging circuit disconnection, thus avoided the possibility of any electric shock.

Embodiment:

Storage battery model GNY-0.225

14～16 hours charging intervals

Discharge operating time＞35 minute (discharging current=300mA)

A power consumption 0.0012 degree (approximately once filling 800 power consumptions) charges

Battery life discharges and recharges more than 500 times

Another kind of pattern of the present utility model such as Fig. 8.Needn't in electric shaver, take out during the battery charge of this kind form, only take off the shaver bonnet, lift the attaching plug contact chip, shaver can be inserted the 220V supply socket.Because of the user touches less than the self-charging type positive and negative electrodes, so can omit safety switch.For making this battery can be fixed in inner unlikely the dropping out of shaver, there are a projection, its end that fixedly tenon 17 is arranged at the lower house middle part, when this battery is pressed into electric shaver, fixedly tenon 17 snaps in the lug, nib of shaver battery compartment inwall, and the self-charging type battery is fixed.When taking out battery, need to push fixedly tenon, make it break away from lug, nib, can upwards take out battery to the battery inboard.

This self-charging cell is simple in structure, and is with low cost, and reliable operation is used safety.

Claims

1, a kind of self-charging type battery that is used for electric shaver.Battery body is meshing with each other by upper shell 1 and lower house 2 and forms.Foldable attaching plug is housed outside upper shell, is equipped with in the upper shell and prevents from the safety switch that gets an electric shock storage battery to be housed and to be the constant current charge circuit of its charging in the battery body.It is characterized in that: storage battery and for the constant current charge circuit of its charging is loaded in the same battery body, upper shell is equipped with foldable attaching plug outward, is equipped with in the upper shell to prevent the safety switch that gets an electric shock.

2, self-charging type battery according to claim 1 is characterized in that: the constant current charge circuit is by decompression capacitor C, discharge resistance R ₁, rectification full-bridge D ₁-D ₄, light-emitting diode D ₅, shunt resistance R ₂Form, all circuit all is loaded in the housing.

3, self-charging type battery according to claim 1, it is characterized in that: the folding type attaching plug is made up of contact chip 9, spring washer 10, conductive spacer 11, holddown spring 12, steady pin 13, contact chip can steady pin be that axle is done 90 degree rotations, damping pressure during its rotation is produced by holddown spring 12, and acts on the contact chip by spring washer 10.

4, self-charging type battery according to claim 1 is characterized in that: safety switch is made up of contact shoe 14, contact sets 15, spring 16, discharge flow deflector 9, and battery surface positive and negative electrode and charging circuit disconnect in the time of can guaranteeing to charge.

5, according to claim 1,3,4 described self-charging type batteries, it is characterized in that: use as attaching plug when contact chip 9 is positioned at stand up position, use as the discharge flow deflector when being positioned at horizontal level.

6, according to claim 1,2,3 described self-charging type batteries, it is characterized in that: there is fixedly tenon 17 on the top of lower house middle part projection, the self-charging type battery can be fixed in electric shaver inside.