CN201134682Y

CN201134682Y - Wireless charging equipment

Info

Publication number: CN201134682Y
Application number: CNU2007200091754U
Authority: CN
Inventors: 朱育兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-17
Filing date: 2007-12-17
Publication date: 2008-10-15
Anticipated expiration: 2017-12-17

Abstract

The utility model discloses a wireless charging device, which comprises an oscillation circuit, a primary coil, a charging seat of a magnetic bar and a power consumption piece which comprises a secondary coil, an accumulator and the like. Alternating magnetic field which is produced in the primary coil by the oscillation circuit in the charging seat is delivered to the secondary coil in the power consumption piece through the magnetic bar, induced current is produced in the secondary coil by the alternating magnetic field, the induced current charges for the accumulator through a charging circuit after rectification, and the delivery of energy is achieved through the primary coil, the magnetic bar, the secondary coil and the accumulator. Since the utility model has no electrode contact, the shortcomings of poor connection which is caused by electrode ageing, splotch which is adhered and the like are avoided. The wireless charging device is safer and more reliable.

Description

Wireless charging device

Technical field

The utility model relates to a kind of small household electrical appliance, particularly relates to a kind of wireless charging device.

Background technology

Existing charging technique, must just can charge by the electrode contact, this charging modes is dangerous and electrode is aging easily, the oxidation of electrode or be stained with reasons such as spot all can cause patch bad, and can't charge, the electrode that exposes also causes problems such as battery short circuit easily, is difficult to realize complete water-tight.

The utility model content

The purpose of this utility model is to provide a kind of more safe and reliable wireless charging device.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of wireless charging device, and it is made up of power consumption spare and cradle; Described power consumption spare comprises secondary coil, storage battery, and storage battery is electrically connected secondary coil; Described cradle comprises oscillating circuit, primary coil, and oscillating circuit is electrically connected primary coil, forms alternating magnetic field on primary coil; During charging, primary coil and secondary coil are oppositely arranged, and alternating magnetic field forms induced current on secondary coil.

Described primary coil and secondary coil be shape ringwise, has mesopore.

Described cradle also comprises a bar magnet, the bottom of this bar magnet is set in the mesopore of the primary coil of shape ringwise, and when charging, the top of bar magnet can be set in the mesopore of the secondary coil of shape ringwise, makes primary coil and secondary coil be that center line is relative with the bar magnet and establishes.

Described power consumption spare is a lamp body, and this lamp body comprises LED lamp, housing, secondary coil, storage battery; Described LED lamp is installed in the top of housing, lower part of frame is a cylindrical handle, in the inner chamber lower end of handle center projections, form a middle part projection, the recessed annular groove of periphery, described secondary coil is installed in this annular groove, and the lower end outer wall of handle forms the annular boss of central indent, peripheral projection; Recessed, the center projections in described cradle upper surface, form a annular groove with central boss, this annular groove can hold receives the insertion of lower end annular boss of handle, and the top of described bar magnet is set in the inner chamber of central boss, and the top of bar magnet is set in the mesopore of primary coil.

After adopting such scheme, the utility model is by the cradle that comprises oscillating circuit, primary coil, bar magnet and comprise that the power consumption spare of secondary coil, storage battery etc. forms.The alternating magnetic field that oscillating circuit in the cradle produces at primary coil, by bar magnet alternating magnetic fields is passed to secondary coil in the power consumption spare, alternating magnetic fields produces induced current on secondary coil, induced current charges a battery by charging circuit after rectification, has realized the transmission of energy by primary coil, bar magnet, secondary coil, storage battery.Because the utility model has the contact of any electrode, avoided wearing out, being stained with reason such as spot and caused and patch bad defective because of electrode, more safe, reliable.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the utility model primary coil, bar magnet, secondary coil are nested with figure;

Fig. 3 is the stereogram of a specific embodiment lamp body of the present utility model;

Fig. 4 is the partial enlarged drawing of the utility model induction charging type LED work light handle;

Fig. 5 is the end view of the utility model induction charging type LED work light handle.

Embodiment

As shown in Figure 1, of the present utility model is a kind of wireless charging device, and it is made up of power consumption spare 1 and cradle 2.

Described power consumption spare 1 comprises secondary coil 11, storage battery 12; Storage battery 12 is electrically connected secondary coil 11 by two leads 13.

Described cradle 2 comprises oscillating circuit 21, primary coil 22, bar magnet 23, circuit board 24.Oscillating circuit 21 can have a plurality of, and the utility model adopts two oscillating circuits 21, and it is electrically connected primary coil 22 by circuit board 24, forms alternating magnetic field on primary coil 22, and circuit board 24 is by lead 25 external power supplys.Described primary coil 22 and secondary coil 11 be shape all ringwise, has mesopore 221,111.The bottom of described bar magnet 23 is set in the mesopore 221 of the primary coil 22 of shape ringwise, and during charging, 1 activity of power consumption spare is plugged on cradle 2, the top of bar magnet 23 is set in the mesopore 111 interior (as shown in Figure 2) of the secondary coil 11 of shape ringwise in the cradle 2, making primary coil 22 be that center line is relative with secondary coil 11 with bar magnet 23 establishes, the alternating magnetic field that forms on the primary coil 22 forms induced current on secondary coil 11, realize the transmission of energy.

In the utility model, the bar magnet in the cradle is not indispensable part, can increase magnetic flux greatly but bar magnet is set, and the speed of charging is improved greatly.

As shown in Figure 2, according to the induction charging type LED work light of principle design of the present utility model, it comprises lamp body 1 ' and cradle 2 '.

Described lamp body ' comprise housing 11 ', LED lamp 12 ', secondary coil 13 ', storage battery 14 '.Described LED lamp 12 ' is installed in the top of housing 11 ', the bottom of housing 11 ' is a cylindrical handle 111 ', in 112 ' (as shown in Figure 3) of the inner chamber lower end of handle 111 ' center projections, form a middle part projection, the recessed annular groove 113 ' of periphery, described secondary coil 13 ' is installed in this annular groove 113 ', the lower end outer wall of handle 111 ' is then opposite with its inner chamber, forms the annular boss 114 ' (as shown in Figure 4) of central indent, peripheral projection.

Described cradle 2 ' comprises housing 21 ', oscillating circuit 22 ', primary coil 23 ', bar magnet 24 ', circuit board 25 '.Described oscillating circuit 22 ', primary coil 23 ', bar magnet 24 ', circuit board 25 ' etc. all are installed in the inner chamber of housing 21 '.Recessed, the center projections in described housing 21 ' upper surface, form a annular groove 212 ' with central boss 211 ', the top of described bar magnet 24 ' is set in the inner chamber of central boss 211 ', and the bottom of bar magnet 24 ' is set in the mesopore 231 ' of primary coil 23 '.Described annular groove 212 ' can hold receives the insertion of lower end annular boss 114 ' of handle 111 ', promptly, when handle 111 ' inserts, the secondary coil 13 ' that is installed in the inner chamber lower end of handle 111 ' just is socketed in and stretches into housing 21 ' central boss 211 ' (promptly, bar magnet 24 ') on, guaranteed that secondary coil 13 ' and primary coil 23 ' are being oppositely arranged of axial line with bar magnet 24 '.

Operation principle of the present utility model:

The alternating magnetic field that oscillating circuit 22 ' in the cradle 2 ' produces at primary coil 23 ', by bar magnet 24 ' alternating magnetic fields is passed to secondary coil 13 ' in the lamp body 1 ', alternating magnetic fields goes up at secondary coil 13 ' and produces induced current, induced current by the 14 ' charging of charging circuit accumulators, is realized the transmission of primary coil 23 ', bar magnet 24 ', secondary coil 13, storage battery 14 ' energy after rectification.

The utility model not only can be used for the charging of LED work light, also can be used for the compact electric apparatus of various needs chargings.

Emphasis of the present invention just is: by primary coil, bar magnet, secondary coil, realized the transmission of energy.

Claims

1, a kind of wireless charging device is characterized in that: it is made up of power consumption spare and cradle; Described power consumption spare comprises secondary coil, storage battery, and storage battery is electrically connected secondary coil; Described cradle comprises oscillating circuit, primary coil, and oscillating circuit is electrically connected primary coil, forms alternating magnetic field on primary coil; During charging, primary coil and secondary coil are oppositely arranged, and alternating magnetic field forms induced current on secondary coil.

2, wireless charging device according to claim 1 is characterized in that: described primary coil and secondary coil be shape ringwise, has mesopore.

3, wireless charging device according to claim 2, it is characterized in that: described cradle also comprises a bar magnet, the bottom of this bar magnet is set in the mesopore of the primary coil of shape ringwise, and during charging, the top of bar magnet can be set in the mesopore of the secondary coil of shape ringwise, makes primary coil and secondary coil be that center line is relative with the bar magnet and establishes.

4, wireless charging device according to claim 1 is characterized in that: described power consumption spare is a lamp body, and this lamp body comprises LED lamp, housing, secondary coil, storage battery; Described LED lamp is installed in the top of housing, lower part of frame is a cylindrical handle, in the inner chamber lower end of handle center projections, form a middle part projection, the recessed annular groove of periphery, described secondary coil is installed in this annular groove, and the lower end outer wall of handle forms the annular boss of central indent, peripheral projection; Recessed, the center projections in described cradle upper surface, form a annular groove with central boss, this annular groove can hold receives the insertion of lower end annular boss of handle, and the top of described bar magnet is set in the inner chamber of central boss, and the top of bar magnet is set in the mesopore of primary coil.