CN101262080B - Battery charger and electronic element using power tool battery - Google Patents

Battery charger and electronic element using power tool battery Download PDF

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Publication number
CN101262080B
CN101262080B CN2008100044502A CN200810004450A CN101262080B CN 101262080 B CN101262080 B CN 101262080B CN 2008100044502 A CN2008100044502 A CN 2008100044502A CN 200810004450 A CN200810004450 A CN 200810004450A CN 101262080 B CN101262080 B CN 101262080B
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China
Prior art keywords
battery
terminal
charger
shell
port
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CN2008100044502A
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CN101262080A (en
Inventor
凯文·L·格拉斯哥
大卫·J·罗兹瓦尔多夫斯基
杰弗里·M·赛勒
乔治·L·小桑塔纳
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Milwaukee Electric Tool Corp
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Milwaukee Electric Tool Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

An electronic component which uses the battery of dynamic tool comprises the following components: a casing; a circuit which is supported by the casing and is electrically connected with the battery; and a battery port which is connected with the casing and can support the battery. The battery port comprises the following elements: an electronic component terminal which can be electrically connected with the circuit and is used for electrically connecting the battery with the circuit; a terminal base which is provided with a terminal opening, wherein the terminal is supported in the terminal opening; and a terminal cover which is supported by the battery port and closes the terminal opening when the battery is not supported by the battery port. A battery charger comprises the following components: a casing; a charging circuit which is supported by the casing and is electrically connected with the electric power source and the battery; a LED which at least has a part at the external side of the casing and is electrically connected with the charging circuit, and the LED can display the charging state of the battery; and a semi-transparent cover which is connected with the casing and at least partly covers the LED. The invention also comprises the battery charger corresponding with the electronic component.

Description

The electronic component of battery charger and working power instrument battery
The application is be on November 7th, 2002, denomination of invention the applying date for " battery charger " and application number be dividing an application of 02149992.6 Chinese invention patent application.
Related application
The application number that the application requires on May 9th, 2002 to propose is No.60/379, and 068 the application number that awaits the reply provisional application and propose November 9 calendar year 2001 is No.60/344, the priority of 431 the temporary patent application that awaits the reply.
Background of invention
Typically, a battery charger comprises a charger case and the charging circuit that also can be communicated with power supply that is supported by charger case.Battery is supported by charger case and is communicated with charging circuit by circuit, thereby makes power supply be offered battery selectively so that battery charge.Battery links to each other with charging circuit by the charging terminal that is supported on the charger case.
The invention summary
Existing battery charger and each parts thereof are not suitable for often occurring fully loaded transportation condition work down on-site, comprise the impact when be subjected to falling weight or charger fall.In addition, existing battery charger and parts thereof also are not suitable for outdoor use and comprise and be exposed to that (as sunlight, rain, wind etc.) and other environmental condition descend (as dirt, sand and dust, rubble, mud, sawdust etc.) under the various weather conditions.Weather condition and environment can damage the parts of charger, and it can not be worked.
In existing charger, charging terminal normally is exposed in the external environment condition.Environmental condition (such as dirt, sand and dust, mud, sawdust etc.) may be covered charging terminal and be blocked the short circuit that is electrically connected or causes charging circuit between charging terminal and battery (and charging circuit).And the state-of-charge indicator of existing charger is difficult to see under the sunlight out of doors.
Existing charger may adopt a kind of charging procedure of poor efficiency charging the battery.Even after battery is filled, some chargers also continue charging.Such program can cause unnecessary battery heating, thereby makes the lost of life of battery.Some other charger stops charging after reaching the preset time restriction.This program also can cause battery overheated and shorten its life-span, perhaps may can't be full of battery when charging process finishes.Existing multiple-grooved charger only comprises that a unique charging circuit is used for a plurality of battery cases and gives all battery charge, in case any one component failure of charging circuit like this, all battery cases all can not be worked.
The invention provides a kind of charger that can fundamentally solve the above-mentioned or other problem that exists in one or more existing chargers.On the one hand, this charger is the multiple-grooved charger that is used for the power tool battery charging.On the other hand, this charger is the heavily loaded charger that is designed under open air and/or the abominable condition of work.
More special in one aspect is; the charger that this invention provided comprises a shell that outer surface is arranged; battery can be supported on this outer surface; a charging circuit that supported by shell and that be electrically connected with power supply and battery; with the protection structure that is connected with the outer surface of shell and stretches out from outer surface, this protection structure extend out to above battery from appearance.
In addition, the charger that this invention provided comprises a shell that outer surface is arranged, battery can be supported on this outer surface, a charging circuit that supported by shell and that be electrically connected with power supply and battery, a base that is connected with shell is used for charger is supported on a face, this base extend out to the position above the outer surface and the battery of shell, and a bar that links to each other with shell at first end of shell, and this bar goes out to the position that surpasses outer surface of outer cover and battery.
In addition, charger provided by the present invention comprises a shell; A charging circuit that supported by shell and that be electrically connected with power supply and battery; An air vent hole of determining according to shell, this air vent hole is discharged heated air and prevents that the external contamination thing from entering in the shell from shell, this air vent hole makes heated air move downward earlier before being discharged from shell and passes through this air vent hole; And a steam vent of determining according to shell, this steam vent is discharged pollutant from shell.
In addition, charger provided by the present invention comprises a shell; A charging circuit that supported by shell and that be electrically connected with power supply and battery; And but one be connected with shell and the battery case of support cells.This battery case comprises a charging terminal that is electrically connected with charging circuit, is used for battery is electrically connected with charging circuit; The charging terminal pedestal that opening is arranged on it, terminal is supported on the pedestal; And a charging terminal cover that is supported by battery case, this charging terminal cover does not seal described opening when having battery to be placed in the battery case.
In addition; charger provided by the invention comprises a shell; a charging circuit that supported by shell and that be electrically connected with power supply and battery; a light-emitting diode that is positioned at the shell outside and is electrically connected to small part with charging circuit; this light-emitting diode can show the charged state of battery, and the translucent protective layer of the light-emitting diode that links to each other with shell and cover at least in part.
In addition, charger provided by the invention comprises a charging procedure that adopts the temperature grade termination tech.This charging procedure is for such as nickel-metal hydrides (NiMH), nickel-cadmium (NiCd), the design of lithium ion battery charge such as (Li-ion), comprise the program of keeping and the quick charge program that charge normal after the operation.
In addition, multiple-grooved charger provided by the invention comprises the charging circuit of each charging slot special use.This structure makes that other charging circuit still can be worked when a charging circuit lost efficacy.
In another aspect of this invention, the impact the when heavy structure of charger allows charger and parts thereof can bear from several feet long drops or from the impact of other object can also protect battery wherein can not loose by shake because of described impact simultaneously.
In another aspect of this invention, have and prevent that the air vent hole that pollutant enters the function in the shell from can prevent that any liquid state or solid contaminant from entering charger case.In addition, charger is provided with a series of steam vents removing any pollutant that may enter enclosure, and the charging circuit that keeps hanging can not contact with this type of exotic.
In another aspect of this invention, when battery was not connected with charger, the charging terminal cover can prevent that any exotic from contacting with charging terminal.This cover can also clean operation so that the contact component of battery and charging terminal keeps clean.
In another aspect of this invention, the light-emitting diode state-of-charge indicator is enough bright, also can see under the sunlight out of doors, and can observe from far distance in very big angular field of view.
In another aspect of this invention, the temperature grade termination tech of charging procedure can reduce the charging interval of a few minutes, reduces the heating that charging causes, and/or extends the life of a cell.
In another aspect of this invention, the charge independence circuit that provides for the user has improved reliability, makes the multiple-grooved charger can thoroughly not lose efficacy because of the inefficacy of a charging circuit.
By following explanation, claim and accompanying drawing, the professional that field under the present invention is familiar with will clear understanding to distinctive characteristics of the present invention and advantage.
Description of drawings
Figure 1 shows that the front view of charger specific embodiments of the present invention.
Figure 2 shows that the front view of charger shown in Figure 1.
Figure 3 shows that the rearview of charger shown in Figure 1.
Figure 4 shows that the vertical view of charger shown in Figure 1.
Figure 5 shows that the upward view of charger shown in Figure 1.
Figure 6 shows that the right view of charger shown in Figure 1.
Figure 7 shows that the left view of charger shown in Figure 1, not shown battery.
Figure 8 shows that the vertical view of isolated base in the charger shown in Figure 1.
Figure 9 shows that the upward view of base shown in Figure 8.
Figure 10 shows that charger cutaway view, not shown battery along 10-10 among Fig. 2.
Figure 11 shows that the exploded view of charger shown in Figure 1.
Figure 12 shows that the rearview of shell front panel inside, there is shown charging circuit.
Figure 13 shows that along the cutaway view of the charger of 13-13 among Fig. 4.
Figure 14 shows that the battery case schematic diagram that the front side is observed in the shell.
Figure 15 shows that along the cutaway view of the battery case of 15-15 among Figure 14.
Figure 16 shows that along the cutaway view of the battery case of 16-16 among Figure 15 the conductive pole that there is shown charging terminal and stretch out from charging terminal.
Figure 17 shows that the front view of battery case.
Figure 18 shows that the exploded view of battery case shown in Figure 17.
Figure 19 shows that another exploded view of battery case shown in Figure 17.
Figure 20 shows that the rearview of battery case shown in Figure 17, there is shown groove is installed to erecting tools used on the shell and parts.
Shown in Figure 21 is rearview same as shown in Figure 20, local not shown among the figure, but shows the revolving structure of charging terminal cover.
Front view for the charging terminal cover that takes off from battery case shown in Figure 22.
Shown in Figure 23 is the rearview of charging terminal cover shown in Figure 22.
Shown in Figure 24 is the partial enlarged drawing of charger shown in Figure 10.
Shown in Figure 25 is the front view of shell rear board inside.
Shown in Figure 26 is the rearview of rear board outside shown in Figure 25.
Shown in Figure 27 is the vertical view of battery.
Shown in Figure 28 for relating to the flow chart of the software functional description of action in the charging operations.
Shown in Figure 29 is the exploded view of light-emitting diode charge condition display.
Shown in Figure 30 is the erecting bed rearview that comprises charging circuit, there is shown the light-emitting diode state-of-charge indicator and is electrically connected with charging circuit.
Shown in Figure 31 is light-emitting diode charge condition display profile along 31-31 among Figure 10.
Before describing a specific embodiments of the present invention in detail, during mandatory declaration the present invention is not limited to the following describes and in the accompanying drawing to the detailed description of its structure and configuration of components.The present invention can also have other specific embodiments, also can realize in a different manner.In addition, it is to be noted that Chinese idiom used herein and term are explanations of the present invention and unrestricted.
Embodiment
Be depicted as the charger 10 of a specific embodiments of the present invention as Fig. 1-11.Usually, the charger 10 main bad working environment (at electrical equipment) that design for heavy duty are such as outdoor building building site, machine shop, job shop etc.Charger 10 can support and to battery 14 chargings, battery can be 12V, 14.4V, the battery 14 of the various chemical analysis (NiCd, NiMH, Li-ion etc.) that 18V or similar electric tool or miscellaneous equipment adopt.Usually, battery 14 is roughly by end face 16a, bottom surface 16b, front 16c and two determined essentially rectangular shapes of side 16d.Yet battery 14 can be an Any shape.
Shown in Figure 10-11, charger 10 comprises that is designed to a shell 18 two, that be made of plastics.First panel 22 and second panel 26 are connected cavity 30 of the two formation.Protuberance 34 and groove 38 are used to mate two panels 22,26, and the O shape circle 42 that is placed on 22,26 of two panels simultaneously is used for sealing the interface of two panels 22,26.The structure of two panels 22,26 makes it install a time-out in lower zonule 46 of formation, the bottom of shell.A steam vent 50 is located on this low zonule 46 to discharge any exotic (as dirt, sand and dust, rubble, sawdust, metal fillings, water, oil, grease etc.) that may enter cavity 30.
Shown in Figure 10-12, charging circuit 58 is supported on the suspension mounting platform 62 that is installed on cavity 30 inside.Mounting platform is by making such as refractory materials such as V φ level plastics.Charging circuit 58 and mounting platform 62 are processed to the device of an integral body, and charging circuit 58 is encapsulated in the refractory material so that the parts of charging circuit 58 are sealed and insulation.The parts of charging circuit 58 are supported on the mounting platform 62 to satisfy the UL requirement by space, sealing and insulation condition as requested.
The suspension mounting structure of mounting platform 62 can be protected charging circuit 58 when being subjected to impacting.This hanging function can be provided by the material (not shown) of any plastically deformable, as is placed on the rubber washer of 18 on platform 62 and shell.
This mounting structure helps that also charging circuit 58 is exposed to any possibility that may enter the exotic (as dirt, sand and dust, rubble, sawdust, metal fillings, water, oil, grease etc.) of cavity 30 and reduces to minimum.Depend on the direction of shell 18, any exotic that enters cavity 30 will be static along in the wall of chamber or next-door neighbour chamber wall.Therefore, charging circuit is suspended on the centre of shell 18, the possibility on any exotic contact or the static charging circuit 58 is all less.
Charging circuit 58 can be connected with the power supply (not shown), as linking to each other with AC power or link to each other with DC power supply by mains cord 64.Charging terminal 66 on the battery case 70 is connected battery 14 with charging circuit 58.
As shown in figure 12, charger 10 has adopted the charging circuit 58 of a special use for each battery case 70.Adopt this structure, if a charging circuit lost efficacy, remaining charging circuit 58 still can be worked, and charger just can not complete failure.Each charging circuit 58 is all with the U.S. Patent No. 6,222,343 that is issued to April 24 calendar year 2001 be filed in the U.S. Patent application No.09/672 on September 29th, 2000,620, and as a reference the U.S. Patent No. that is issued on September 24th, 2,002 6,456,035 here.
Shown in Figure 10-11, air vent hole 74 be positioned at first shell 22 than lower part, air vent hole 78 is positioned at the higher part of second shell 26.The passage 82 that air vent hole 74,78 raises ladder comprises in the cavity 30.Comprise outer rim 84 in the structure of each passage 82, may be actually the spacer 86 on plane, and towards the inner edge 90 of spacer 86.This structure helps any solid (as dirt, sand and dust, rubble, sawdust, metal fillings etc.) or liquid (Ru Shui, oil, grease etc.) exotic to enter cavity 30.Outer rim 84 can make exotic fall.Want to enter cavity 30, any exotic of the structural requirement of air vent hole 74,78 at first penetrates the outside of shell 18, moves along 86 sections that are actually the plane, climbs up and pass through the step of inner edge 90 formation then.This detour prevents that any solid or liquid exotic from not having external force to enter in the shell 18 as the time spent.Yet if exotic enters cavity 30, these exotics can be discharged from by steam vent 50.
Usually, in the course of work of charger 10, charging circuit 58 can heating.Need not forced convertion, cold air can be sucked cavity 30 from air vent hole 74 and be flow through the charging circuit 58 of heating.Cold air is recharged circuit 58 heating, makes heated air rising and discharges cavitys 30 by air vent hole 78.
In other structure (not shown), charger 10 can adopt electric fan rather than the compulsory convection current air that need not by air vent hole 74,78 to cool off the charging circuit 58 that is generated heat.Also can be used in the charger 10 such as heat abstractor (not shown) such as fin, heat pipes is charging circuit 58 heat radiations.
As shown in figure 11, shell 18 is installed on the base 94, and base 94 is designed as also playing cushioning effect along its side suspension shell 18.In schematic structure, base 94 is by high density polyethylene (HDPE), and the material of the very high and shock-absorbing of being good at of a kind of intensity adopts blow molding process to make.This selection makes base 94 can more effectively absorb impact energy.In schematic structure, adopt about 0.1 inch uniform wall thickness around the base, falling or be subjected to destroying when other impacts (especially locating) with base 94 near the bight.
As shown in Figure 8, base 94 also comprises the steam vent 98 that is positioned on the low zonule 102 that is formed on the base 94.Steam vent 50 on the shell 18 and base 94 upper air-vents 98 are that fluid is communicated with but stagger mutually, thereby can't directly enter cavity 30 by steam vent 50,98.As shown in Figure 9, steam vent 98 runs through base 94, thereby any exotic that enters charger 10 can be discharged from.
As Fig. 1, shown in 11 and 13, handle 106 all links to each other with base 94 with shell 18.Handle 106 is usually located near charger 10 anterior batteries 14 and is attached to battery case 70 places.Handle 106 comprises buffer 114 upper segment 110 that links to each other with shell 18 and the lower section 118 that links to each other with base 94 by shock-absorbing.Buffer 114 is designed to can absorb also can prevent vibrations.Buffer 114 has the double grading of spring and damping by making such as viscoelastic materials such as polyurethane or natural rubbers, thereby realizes above-mentioned performance.On the buffer 114 fluted 120.Groove 120 is distributed in around the buffer 114, makes buffer 114 easier being compressed when being subjected to impacting.There is the handle that meets ergonomics at the handle middle part, and making has comfortable, reliable and stable handle on the handle 106.Handle 122 can comprise the cover layer that the elastic anti-slip material is made, and charger 10 can cosily be picked up.In schematic structure, handle 106 is made into the two parts by handle 122 connections.Yet (not shown) in other structure, handle 106 can be made into one, as a bar, simultaneously handle 122 and handle 103 are become one.
Handle 106 can allow the user carry charger discrepancy building site, no matter whether battery 14 is connected on the charger 10.As shown in Figure 6, Fu Dai battery 14 is enclosed in usually by in base 94 and the handle 106 determined borders.Like this, handle 106 also plays " railing " or protective device.More special is that the front 16c of the lower section 118 protection batteries 14 of handle 106 is not subjected to width greater than the face of handle 106 lower section 118 yardsticks or the impact of object.Similarly, lower section 118 protection side 16d are not subjected to other greater than lower section 118 and the face of 18 distances of shell or the impact of object.Impact when the bottom surface 16b of base 94 protection batteries 14 is not fallen or other form.
Although so that load onto or take off battery 14 easily, upper segment 110 provides some protections to prevent that it is subjected to being wider than the face of upper segment 110 yardsticks or the impact of object can for the end face 16a of battery 14 to the end face 16a of battery 14 by not being subjected to any obstruction.(not shown) in other structure can adopt additional overhead guard (not shown) to protect the end face 16a of battery 14.
If charger 10 falls or in the building site around when being subjected to impacting when mobile because handle 106 or base 94 at first impacted, thereby the combination of base 94 and handle 106 helps to prevent that battery 14 from scattering under percussion.Therefore, handle 106 and base 94 protect the battery 14 that is stored in the charger 10 not to be hit.
In schematic structure, shaft-like handle 106 provides the protection structure for charger 10.(not shown) in other structure, the protection structure may comprise a solid walls, it from the outer surface of shell 18 stretch face and surround battery 14 the surface make battery 14 be arranged in the groove of this wall, simultaneously again can loading and unloading battery 14.
(not shown) in another other structure, one or more covers surround or partly surround battery 14 and be not hit to protect it.This cover or a plurality of cover are can remove by hand/stretch or with battery 14 plugs.
Buffer 114 also absorbs a part of impact energy, is shaken the diffusing possibility and the ruined possibility of parts of charger 10 or charger 10 thereby reduced battery 14.As shown in Figure 4, rear portion buffer 126 and side buffer 130 also are used to assist protecting sheathing 18 respectively.Being depicted as the rear portion of integrative-structure and side buffer 126,130 is fixed on the shell 18.Rear portion and side buffer 126,130 are made by shock resistance and the endergonic material of energy, as HDPE.
As shown in figure 11, first panel 22 is provided with opening to hold a plurality of battery cases 70.In schematic structure, battery case 70 is located on the charger 10.Other structure (not shown) and of the present invention aspect some in, charger 10 comprises the battery case 70 greater or less than three.As shown in figure 17, each battery case 70 comprises 138, one charging terminal devices 142 of a battery construction section, and a construction section 146.Battery construction section 138 comprises the battery case boss 150 that is used for guiding battery 14 when battery 14 embeds battery case 70.Battery grooves 154 interlocks (as shown in Figure 27) of coupling think that battery case 70 provides correct arrangement position and support cells groove 70 on this battery case boss 150 and the battery 14.Similarly, the battery case groove 156 of battery boss 155 embedding couplings thinks that groove 70 provides correct arrangement position and support cells groove 70.Shown in Figure 14-16, one group of charging terminal 66 (part of charging terminal device 142) is hidden in the opening in the terminal substrate 158 on the groove 70.Conducting boss 162 connects the charging terminal 66 on charging circuit and the corresponding groove 70.Mounting portion 146 also comprises the fixture 166 of link slot 66 and shell 18.
Groove 70 is enough firm with being connected of 18 on shell, even charger 10 falls when having battery 14, corresponding groove 70 can not separate with shell 16 yet.It can bear the designing requirement of battery case 14 when having battery 14 and not separate with shell from 4 feet high fallings.
At least the part that is connected with power supply in the charger 10 will as V φ level plastics, be made by refractory material.These parts comprise charging circuit 58 and mounting platform 62 device and battery cases 70.Therefore, the other parts of shell 18 can be made by other material.
In schematic structure, as U.S. Patent No. 6,222,343 and No.6, described in 456,035, battery 14 to charging circuit 58 power supplies to start charging.Even charger 10 links to each other with power supply, if battery 14 is not connected with terminal 66, then terminal 66 can not switched on.Therefore, if battery 14 is not put into a groove 70, then the terminal 66 of respective grooves 70 between voltage be zero.This helps to guarantee can not reduced the danger of shock hazard when battery 14 is not put into simultaneously by short circuit when charging circuit 58 is not put into battery in groove 70.
Shown in Figure 17-21, each battery case 70 also comprises a charging terminal cover 170, and structure covers terminal substrate 158 under spring action as shown in FIG..Shown in Figure 22 and 23, charging terminal cover 170 comprises that every side is respectively with the protective cover of an installation turning handle 178.There is one to be positioned at protective cover 174 and 186 binding clip 182 of axle on each turning handle 178, covers 172 here and be connected with groove 70.Figure 15 and 20-21 are depicted as cover 170 and are assembled together with groove 70.Biasing element, torsionspring 190 as shown in FIG. is placed on groove 70 and 174 of turning handles is installed and makes on the opening that covers terminal substrate 158 with biasing protective cover 174.
As shown in FIG., thus battery 14 is slided into opening that operation on the battery construction section 138 axially shrinks back terminal cover 170 to open terminal substrate 158 and terminal 138 is emerging in battery 14 fronts.It needs to be noted that battery construction section 138 comprises an opening 194, binding clip 182 protrudes by it.Battery boss 155 cooperates with binding clip 182 and then cooperates with the battery construction section.Binding clip 182 comprises an inclined-plane, is enough to make terminal cover 170 axially to offset the bias force of spring 190, thereby makes terminal substrate 158 and terminal 66 be emerging in battery 14 fronts.Removed when battery 14, the power of spring 190 makes cover 170 axially get back to the position that can cover terminal substrate.Bias force is enough closed cover 170 and don't is hindered packing into of battery 14.
As shown in figure 10, terminal cover 170 is shunk back when being promoted by the insertion of battery 14 in the cavity 30.Cover 170 is opened the path movement at the interface of exotic and cleaning slot 70 and battery 14 along cleaning.Terminal cover 66 also helps to make terminal 66 to be exposed in the external environment condition as few as possible.When closing, terminal cover 170 makes exotic (as dirt, sand and dust, water, oil, grease etc.) from sticking to position on the terminal 66 and fall and reducing adverse effect to charging circuit 58 and 14 electrical connections of battery.
In other optional structure (not shown) and others of the present invention, terminal cover 170 can otherwise move, and as sliping off from terminal substrate linearly, rather than axially leaves terminal cover 158 when battery 14 cooperates with battery construction section 138.In addition, terminal cover 170 can be by user's requirement action, as by next button terminal cover 170 being shunk back.
As shown in figure 28, multiple charging termination agreement comprises temperature grade (TR) termination protocol, and stuck-module, comprises trickle charge module 198, and charging module 202, and a balance module 206 provide the control of charging process.
The speed that battery 14 temperature raise in charge cycle of TR charging termination agreement monitoring, and when battery 14 reaches predetermined temperature changing speed, cut off charging current.The TR agreement can also consider to cause battery 14 temperature after cutting off electric current to continue the thermo-lag that raises.The TR agreement can reduce the charging interval, the heating that control causes owing to charging, and extending battery life.
Fixedly run time version monitoring battery 14 charges normal the cycle.Charge cycle can be stopped by aforementioned TR termination protocol.The termination that charges normal the cycle can start carries out the code relevant with trickle charge module 198.Trickle charge module 198 can be provided with " trickle charge " sign relevant with 198 startups of trickle charge module with charging normal end cycle in software." trickle charge " sign is set starts charging module 202 and balance module 206.Charging module 202 can apply lasting charging to battery 14 by means of about per two minutes five seconds the pulse current that acts on battery 14.
Balance module 206 is carried out the code that can make battery 14 rests and cool off 15 minutes and be provided with the time restriction of balance generation.If balance module 206 is not carried out in binding hours, this module stops and charging module 202 continues to keep charging.Simultaneously in binding hours, the temperature of a sensor monitors battery 14.If temperature in the acceptable scope, can be provided with " filling soon " sign in the software.Setting " filling soon " sign can start a quick charge cycle, and the wherein maximum lasting charging interval is set by " filling the time soon ".Fill normally 5 minutes time soon, yet, also can be At All Other Times according to the kind and the different of capacity of battery 14.No matter be one of the time of filling soon or other charging termination agreement,, can both stop filling the cycle soon as the TR agreement.If the time of filling soon before the charging termination agreement is carried out just expires, then balance module 206 stops and the lasting charging of charging module 202 continuation.
Balance module 206 each charge cycle are carried out once and are suitable for by the capacity of battery 100% it being charged.Charging current level in TR termination protocol control balance module 206 implementations.The level of its electrothermal calefactive rate is usually less than the level in the cycle of charging normal.Provide charging current can make the situation charging capacity of the thermal stress minimum of battery 14 when charging more approach its heap(ed) capacity with less electrothermal calefactive rate.
With nickel metal hydride (NiMH) is example, and a NiMH battery adopts the TR termination protocol in normal levels (about 3.0amps) charging down.Its temperature should be 40 ℃ during charging termination, or above 15 ℃ of room temperature.Because thermo-lag, NiMH battery still can continue to heat up between 15-30 after the charging minute, its temperature can rise 5-7 ℃ more usually.
Balance module 206 comprises following operating procedure when using TP charging termination agreement.If battery is placed in the charger, battery can final cooling.After cooling, battery is in about 90-95% of charging capacity.When battery was cooled to below 30 ℃, balance module 206 run time versions were enabled in the program of further charging under the special charging rate, as the speed of one degree centigrade of battery temperature per minute rising.Adopt balance module 206, the charging capacity of all the other 5-10% of NiMH battery can be filled.
Shown in Figure 29-31, state-of-charge indicator comprises light-emitting diode (LED) 210, is electrically connected to show the charged state of each battery 14 to the user with each charging circuit 58.These LED are designed to it luminously can surpass outdoor intensity of sunlight.These LED are placed on the outer periphery of shell 18, so that its outside can be in sight from any angle of opposite shell.For example, (can't see the upper surface of charger 10 this moment), still can see the outer periphery of LED210, because LED210 has been projected into outside the upper surface of shell if charger 10 is placed on the plane suitable with eye-level.Each LED also comprises a LED cover 218, and it surrounds the part of the outstanding shell of LED210.Cover 218 is as the attachment devices of protection LED219, and the light that also can scattering LED210 sends is to increase visual range and the visible angle of LED210.At cover 218 and shell 18 packing ring 222 is arranged, help to prevent that exotic from entering shell 18 by the hole of opening for LED210 on the shell 18.
In another kind of structure, LED can be set on any visible surface of shell 18, and is not only on the end face.(not shown) in another structure, other visual detector as the potentiometer pin or be used for numeral and show the charged state liquid crystal window, also may be utilized.
(not shown) and others of the present invention in another structure, charger 10 can adopt audio indicator rather than visual detector to show battery charging state to the user.Acoustic information that this type of audio indicator comprises electric bell, clock, record in advance etc.
Need to prove,, may be used for the electrical equipment of other type according to some aspect of the present invention, as electric tool, acoustic component etc.For example, in heavy structure, can be used for audio frequency apparatus or other and be used for more short-life relatively electrical equipment under the operational environment.In addition, suspension and/or seal electric circuit or be used for audio frequency apparatus or other this kind equipment.In addition, exclusive characteristics of the present invention, but as anti-exotic air vent hole, exotic tap, movable electrical terminal cover and/or outstanding LED also electrical installation, as electric tool, generator (generator), audio frequency apparatus, communication apparatus etc.
One or more exclusive characteristics of the present invention and advantage have been described in the claim.

Claims (13)

1. the electronic component of a working power instrument battery, this power tool battery comprises boss, this electronic component comprises:
A shell;
One by shell circuit that support and that can be electrically connected with battery; And
But one is connected with shell and the battery port of support cells, and this battery port comprises
Groove, the battery boss can combine with this groove, with cell support on battery port;
The electronic component terminal that can be electrically connected with circuit is used for battery is electrically connected with circuit;
A terminal substrate that is provided with terminal openings, terminal is supported in the terminal openings; And
A terminal cover that is supported by battery port, when battery port does not have support cells, terminal cover sealing terminal openings, wherein when cell support was on battery port, battery boss joint terminal cover boss caused the terminal cover to open terminal openings.
2. electronic component as claimed in claim 1 is characterized in that electronic component is a battery charger, and circuit is a charging circuit, and battery can be electrically connected on the charging circuit that will be recharged.
3. electronic component as claimed in claim 2 is characterized in that the battery port groove is determined notch, and the terminal cover comprises the terminal cover boss of extend past notch.
4. electronic component as claimed in claim 3 is characterized in that, when cell support was on battery port, battery boss joint terminal cover boss caused the terminal cover to open terminal openings.
5. electronic component as claimed in claim 3 is characterized in that, the terminal cover flexibly connects battery port rotationally, and when battery boss joint terminal cover boss, the terminal cover bounces back rotationally to open terminal openings.
6. electronic component as claimed in claim 5 comprises that further bias spring closes terminal openings with the bias terminal cover.
7. electronic component as claimed in claim 2 is characterized in that battery port is made by refractory plastic material.
8. electronic component as claimed in claim 2 further comprises:
One by shell second charging circuit that support and that can be electrically connected with power supply; And
Second battery port that is connected and can supports second battery with shell, second battery port are electrically connected second battery and second charging circuit.
9. battery charger comprises:
A shell;
One by shell charging circuit that support and that can be electrically connected with power supply; With
But one is connected with shell and the battery port of support cells, and battery comprises the battery boss, and battery port has been determined the battery port groove, the battery boss can combine with this battery port groove, with with cell support on battery port, the battery port groove is determined notch, this battery port comprises:
The charger terminal that can be electrically connected with charging circuit is used for battery is electrically connected with charging circuit;
A charger terminal pedestal that is provided with terminal openings, charger terminal is supported in the terminal openings; And
A charger terminal cover that is supported by battery port, when battery port does not have support cells, terminal cover sealing terminal openings, the charger terminal cover comprises the terminal cover boss of extend past notch;
It is characterized in that when cell support was on battery port, battery boss joint terminal cover boss caused the terminal cover to open terminal openings.
10. battery charger as claimed in claim 9 is characterized in that the terminal cover connects battery port rotationally, and when battery boss joint terminal cover boss, the terminal cover bounces back rotationally to open terminal openings.
11. battery charger as claimed in claim 10 comprises that further bias spring closes terminal openings with the bias terminal cover.
12. battery charger as claimed in claim 9 is characterized in that battery port is made by refractory plastic material.
13. battery charger as claimed in claim 9 further comprises:
One by shell second charging circuit that support and that can be electrically connected with power supply; And
Second battery port that is connected and can supports second battery with shell, second battery port are electrically connected second battery and second charging circuit.
CN2008100044502A 2001-11-09 2002-11-07 Battery charger and electronic element using power tool battery Expired - Lifetime CN101262080B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34443101P 2001-11-09 2001-11-09
US60/344,431 2001-11-09
US37906802P 2002-05-09 2002-05-09
US60/379,068 2002-05-09

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CN101262080A CN101262080A (en) 2008-09-10
CN101262080B true CN101262080B (en) 2010-11-10

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CNB021499926A Expired - Fee Related CN100372211C (en) 2001-11-09 2002-11-07 Battery charger
CN2008100044502A Expired - Lifetime CN101262080B (en) 2001-11-09 2002-11-07 Battery charger and electronic element using power tool battery
CNB021503982A Expired - Fee Related CN1251338C (en) 2001-11-09 2002-11-11 Electronic parts such as: radio, audio frequency element, battery charger or radio charger
CN2006100547358A Expired - Fee Related CN1848516B (en) 2001-11-09 2002-11-11 Electrical component, such as a radio, audio component, battery charger or radio/charger

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CNB021503982A Expired - Fee Related CN1251338C (en) 2001-11-09 2002-11-11 Electronic parts such as: radio, audio frequency element, battery charger or radio charger
CN2006100547358A Expired - Fee Related CN1848516B (en) 2001-11-09 2002-11-11 Electrical component, such as a radio, audio component, battery charger or radio/charger

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Also Published As

Publication number Publication date
CN100372211C (en) 2008-02-27
CN1251338C (en) 2006-04-12
CN101262080A (en) 2008-09-10
CN1421942A (en) 2003-06-04
CN1848516B (en) 2010-05-26
CN1848516A (en) 2006-10-18
CN1433120A (en) 2003-07-30

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