U.S. patent application number 10/860147 was filed with the patent office on 2005-12-08 for charger.
Invention is credited to Peng, Ta-Min.
Application Number | 20050269986 10/860147 |
Document ID | / |
Family ID | 35446947 |
Filed Date | 2005-12-08 |
United States Patent
Application |
20050269986 |
Kind Code |
A1 |
Peng, Ta-Min |
December 8, 2005 |
CHARGER
Abstract
A charger includes a choke coil and a choke iron core disposed
on a plane surface of heat dissipating fins. Furthermore, a face
plate, a control circuit board, a drive circuit board, the heat
dissipating fins, a fan and a ventilation plate are separately
series-connected in alignment and fitted on a base thereof. The
electric power from a power supply input is transmitted to the
drive circuit board through an input terminal, whereupon
alternating current passes through a rectifier circuit and is
converted into direct current thereat. Upon charging, results from
a detector are transmitted to a microprocessor, which effectuates
switch over to an output circuit through transistors, while diodes
prevent current reflux. The electric power is then transmitted to a
battery by means of a transformer coupled to an electric power
terminal and further passing through one more rectifier circuit and
a wave filter circuit.
Inventors: |
Peng, Ta-Min; (Taoyuan
County, TW) |
Correspondence
Address: |
C.Q.S. Electrical Products Inc.
P.O. Box No. 6-57
Junghe
Taipei
235
TW
|
Family ID: |
35446947 |
Appl. No.: |
10/860147 |
Filed: |
June 4, 2004 |
Current U.S.
Class: |
320/107 |
Current CPC
Class: |
H02J 7/0042
20130101 |
Class at
Publication: |
320/107 |
International
Class: |
H02J 007/00 |
Claims
What is claimed is:
1. A charger comprising a case, a base, a base plate, a face plate,
a ventilation plate, a control circuit board, a drive circuit
board, heat dissipating fins, a fan, an output terminal, and an
input terminal; a detector and a microprocessor are configured atop
the control circuit board; rectifier circuits, wave filter
circuits, and a control circuit are configured atop the drive
circuit board; structural characteristics comprise a choke coil and
a choke iron core lo disposed atop a plane surface of the heat
dissipating fins; the face plate, the control circuit board, the
drive circuit board, the heat dissipating fins, the fan and the
ventilation plate adopt a separately series-connected alignment and
are installed atop the base thereof, whereupon the case is placed
on top and screwed down with screws, and thereafter a base portion
is screwed down by means of base screws penetrating the base plate;
characteristics of an electric circuit comprise an external power
supply input transmitted to the drive circuit board through the
input terminal, whereupon alternating current passes through a
rectifier electric circuit and is converted into direct current
thereat; efficiency and stability of electric power is enhanced
through impedance matching generated by way of the choke coil,
whereafter the electric power is transmitted to the wave filter
circuit, thus enabling the power supply to provide steady direct
current therewith; upon charging, the detector detects status of
voltage, electric current and electric quantity within a battery,
results of which are transmitted to the microprocessor, thereafter,
the microprocessor selects charge mode for the battery and switches
over to output circuit mode by means of transistors, while diodes
prevent current reflux; the electric power output is further
stabilized through regulated integrated circuits, whereupon, in
order to simultaneously prevent electric current generated by the
battery from backing up to other electric circuits, the electric
power further passes through the rectifier circuit and the wave
filter circuit by way of a transformer coupled to an electric power
terminal, which further enhances stability of the electric power,
whereafter the electric power is transmitted to the battery; upon
inputting the electric power, efficiency and stability of charging
the battery is enhanced through the impedance matching generated by
way of the choke coil, and with the choke coil adopting a ferrite
core as a configuration, anti-noise and high impedance matching of
the choke coil is enhanced. and wherein the detector is configured
with functionality to detect voltage, electric current, and
electric quantity therewith.
2. The charger according to claim 1, wherein the rectifier circuits
are further configured as alternating current rectifiers, including
half-wave rectification rectifier circuits, full-wave rectification
rectifier circuits, bridge rectifier circuits and related
alternating current rectifiers.
3. The charger according to claim 1, wherein the wave filter
circuits are further configured as electric resistance-capacitance
wave filters and related wave filters of electric power
electronics.
4. The charger according to claim 1, wherein the microprocessor is
further configured as an AVR Mega series and related
microprocessors of automatic control electronic circuits.
5. The charger according to claim 1, wherein the transistors are
further configured as FETs (Field-Effect Transistors), MOSs (Metal
Oxide Semiconductors), BJTs (Bipolar Junction Transistors), and
related transistors of electronic circuits.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention-provides improvement on structure of a
charger, and embodies characteristics including a choke coil and a
choke iron core disposed on a plane surface of heat dissipating
fins. Furthermore, a configuration is embraced whereby a face
plate, a control circuit board, a drive circuit board, the heat
dissipating fins, a fan and a ventilation plate adopt a separately
series-connected alignment and are fitted on a base thereof,
whereafter the configuration is covered with a case and screwed
down with screws, whereupon a base portion is screwed down by means
of base screws penetrating a base plate.
[0003] (b) Description of the Prior Art
[0004] Output current and voltage of a conventional charger must be
adjusted in advance in order to prevent overloading electric
quantity when charging, which would otherwise result in shortening
service life of a battery, even causing burnout of the battery.
Furthermore, when electric power output of the charger is unstable,
the charger is unable to operate in coordination with batteries
having different electric power mode, resulting in reducing service
life of the battery and damage to same.
[0005] Hence, the inventor of the present invention expects to
resolve and surmount existent technical difficulties in eliminating
the aforementioned shortcomings.
SUMMARY OF THE INVENTION
[0006] The present invention provides improvement on structure of a
charger. Electric circuits of the present invention are
characterized in that electric power from a power supply input is
transmitted to the drive circuit board through an input terminal,
whereupon alternating current passes through a rectifier circuit
and is converted into direct current thereat. Efficiency and
stability of the electric power is enhanced through impedance
matching generated by way of the choke coil, whereafter the
electric power is transmitted to a wave filter circuit, thereby
effectuating provision of steady direct current from the power
supply.
[0007] Upon charging, a detector detects status of internal
voltage, electric current and electric quantity of a battery,
whereupon results from the detector are transmitted to a
microprocessor, which thereupon selects a charging mode, and
effectuates switch over to an output circuit mode through
transistors, while diodes prevent current reflux. The electric
power output is further stabilized through regulated integrated
circuits, which simultaneously prevent the electric current
generated by the battery being charged from backing up to other
electric circuits. Stability of the electric power is further
enhanced by means of a transformer coupled to an electric power
terminal, whereupon the electric power further passes through one
more rectifier circuit and a wave filter circuit, whereafter the
electric power is transmitted to the battery.
[0008] Furthermore, when outputting the electric power, efficiency
and stability of charging is enhanced through the impedance
matching generated by the choke coil and the choke iron core,
moreover, the choke coil is manufactured from ferrite core, which
enhances anti-noise effect and high impedance matching of the choke
coil.
[0009] To enable a further understanding of the said objectives and
the technological methods of the invention herein, the brief
description of the drawings below is followed by the detailed
description of the preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 shows an elevational view according to the present
invention.
[0011] FIG. 2 shows an exploded elevational view according to the
present invention.
[0012] FIG. 3 shows a circuit diagram according to the present
invention.
[0013] FIG. 4 shows a schematic view of an embodiment according to
the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0014] Referring to FIGS. 1 and 2, which show a charger A
structured to comprise a case B, a base B1, a base plate B2, a face
plate B3, a ventilation plate B4, a control circuit board C, a
drive circuit board C1, heat dissipating fins D, a fan E, an output
terminal P, and an input terminal Q, and is characterized in
that:
[0015] A detector M and a microprocessor 0 are configured atop the
control circuit board C;
[0016] Rectifier circuits F and J, wave filter circuits G and K,
and a control circuit H are configured atop the drive circuit board
Cl.
[0017] Structural characteristics of the present invention are
embodied in a choke coil L and a transformer I disposed atop a
plane surface of the heat dissipating fins D. Furthermore, the face
plate B3, the control circuit board C, the drive circuit board C1,
the heat dissipating fins D, the fan E and the ventilation plate B4
adopt a separately series-connected alignment and are installed
atop the base B1 thereof, whereupon the case B is placed on top and
screwed down with screws, and thereafter a base portion is screwed
down by means of base screws B21 penetrating the base plate B2.
[0018] Referring to FIGS. 2 and 3, characteristics of an electric
circuit embodied in a configuration whereby external power supply
input is transmitted to the drive circuit board C1 through the
input terminal Q, whereupon alternating current passes through a
rectifier electric circuit F and is converted into direct current
thereat. Efficiency and stability of the electric power is enhanced
through impedance matching generated by way of a choke coil L,
whereafter the electric power is transmitted to a wave filter
circuit G, and utilizes refresh and discharge generated by
capacitance G1 of the wave filter circuit G to complete filtering,
thus enabling the power supply to provide steady direct current
therewith. Upon charging, the detector M detects status of voltage,
electric current and electric quantity within a battery T waiting
to be charged, results of which are transmitted to the
microprocessor O. Thereafter, the microprocessor O selects charge
mode for the battery T waiting to be charged and effectuates switch
over to output circuit mode by means of transistors H21, H22, H23,
H24, while diodes H31, H32, H33 and H34 prevent current reflux. The
electric power output is further stabilized through regulated
integrated circuits H11, H12, H13 and H14, whereupon, in order to
prevent electric current generated by the battery T from backing up
to other electric circuits, the electric power further passes
through the rectifier circuit J and the wave filter circuit K by
way of the transformer I coupled to an electric power terminal,
which further enhances stability of the electric power, whereafter
the electric power is transmitted to the battery T.
[0019] Furthermore, upon inputting the electric power, efficiency
and stability of charging the battery T is enhanced through the
impedance matching generated by way of the choke coil L, and with
the choke coil L adopting a ferrite core as a configuration,
anti-noise and high impedance matching of the choke coil L is
enhanced.
[0020] Wherein the rectifier circuit F is further configured as an
alternating current rectifier, including a half-wave rectification
rectifier circuit, a full-wave rectification rectifier circuit, a
bridge rectifier circuit and related alternating current rectifier
circuits.
[0021] Wherein the wave filter circuit G is further configured as
an electric resistance-capacitance wave filter and related wave
filters of electric power electronics.
[0022] Wherein the microprocessor O is further configured as an AVR
Mega series and related microprocessors of automatic control
electronic circuits.
[0023] Wherein, the detector M is configured with functionality to
detect voltage, electric current, and electric quantity
therewith.
[0024] An embodiment of the present invention provides improvement
on structure of a charger. Referring to FIG. 4, which shows a plug
Q1 connected to an input terminal Q, which realizes electrical
power transmission to a charger A therewith. The electric power is
transmitted out from a clamp P1 connected to an output terminal P
and into a battery T through electric circuits within the charger
A. The clamp P1 of the charger A is clamped onto and thereby
connected to a battery terminal T1 of the battery T, thus
effectuating transmission of the electric power into the battery
T.
[0025] In order to better explicitly disclose advancement and
practicability of the present invention, a comparison with a
conventional charger is described hereinafter:
[0026] Shortcomings of the conventional charger
[0027] 1. Unable to automatically distinguish the electric power
required by a battery.
[0028] 2. Unable to control the electric power output according to
the electric power mode of the battery.
[0029] 3. Unable to adjust the electric power output according to
internal electric quantity of the battery, and thus easily results
in reducing service life of the battery.
[0030] Advantages of the present invention
[0031] 1. Provided with a microprocessor, which automatically
distinguishes the electric power required to charge the
battery.
[0032] 2. Utilizes a detector circuit and a control circuit to
automatically switch over electric power output and charge
mode.
[0033] 3. Automatically differentiates various charge modes,
including steady voltage, steady current, and so on.
[0034] 4. Enhances efficiency of the charge and service life of the
battery.
[0035] 5. Provided with advancement, practicability and
convenience.
[0036] 6. Enhances commercial competitiveness.
[0037] In conclusion, the present invention in surmounting
structural shortcomings of prior art has assuredly achieved
effectiveness of anticipated advancement, and moreover, is easily
understood by persons unfamiliar with related art.
[0038] Furthermore, contents of the present invention have not been
publicly disclosed prior to this application, and advancement and
practicability of the present invention comply with essential
elements as required for application of a new patent model.
Accordingly, a patent application is proposed herein.
[0039] It is of course to be understood that the embodiments
described herein is merely illustrative of the principles of the
invention and that a wide variety of modifications thereto may be
effected by persons skilled in the art without departing from the
spirit and scope of the invention as set forth in the following
claims.
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