CN1287501C - Charger for wireless dust collector - Google Patents
Charger for wireless dust collector Download PDFInfo
- Publication number
- CN1287501C CN1287501C CN 01144369 CN01144369A CN1287501C CN 1287501 C CN1287501 C CN 1287501C CN 01144369 CN01144369 CN 01144369 CN 01144369 A CN01144369 A CN 01144369A CN 1287501 C CN1287501 C CN 1287501C
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- China
- Prior art keywords
- charging
- nickel
- battery
- cadmium cell
- charger
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a charger used by wireless dust suction devices, which is composed of a power socket, a charging printed circuit board and a charging placing stand, wherein the charging printed circuit board converts the AC power into the DC power, the charging placing stand provides the charging DC power for a nickel-cadmium cell arranged in a dust remover by contacting a connecting terminal of the dust remover through a connecting terminal of the placing stand, and the charging printed circuit board is connected with a discharging resistor. When the nickel-cadmium cell in the wireless dust remover is charged by using the present invention, the discharging resistor discharges the electric energy remained in the nickel-cadmium cell by force according to the perception signal of the charging printed circuit board so as to avoid memory effect of the nickel-cadmium cell; the present invention can maintain the chargeable capacity of the nickel-cadmium cell in the initial capacity state so as to extend usage time and service life of the nickel-cadmium cell.
Description
One, technical field
The present invention relates to a kind of charger for wireless dust collector, specifically, relate to a kind of charger that can effectively prevent ni-cd battery storage effect.
Two, background technology
Generally speaking, drive household electrical appliance or portable electrical home appliances and mainly adopt second generation battery, i.e. ni-cd battery, but this ni-cd battery is in recharge and discharge process, its chargeable amount will be reduced, and the life-span of battery will shorten thereupon.Storage effect is relevant with the crystalline texture of cadmium metal, and the crystalline texture of cadmium metal is a kind of with the quartzy identical dense hexagonal structure of crystalline texture.In the charge and discharge process of ni-cd battery, the fragile part in the cadmium crystalline texture will react and be upset, and become the non-type structure and form separator between crystalline texture and non-type structure; Along with the recharge and the discharge of battery, separator is thickening gradually, and the chargeable amount of battery diminishes thereupon.
As shown in Figure 1, for to the wireless dust collector charging, power plug 2 is connected in the supply socket, the AC power supplies of supply socket changes the DC power supply into and charging rack 4 is provided in the charging printed substrate 3 of charger 1.Dust catcher 12 is installed on the charging rack 4, the splicing ear 5 of charging rack and the splicing ear 6 of dust catcher are in contact with one another, the DC power supply promptly offers the ni-cd battery 7 that links to each other with dust catcher splicing ear 6 and makes its charging.When dust catcher 12 was separated with charging rack 4, charging rack splicing ear 5 was separated from each other with dust catcher splicing ear 6, and the charging of ni-cd battery 7 is cut off.After starting dust catcher 12, fan-motor 11 is connected the ni-cd battery 7 that has charged and is rotated, and dust is promptly sucked by dust catcher by suction inlet 8.After cleaning finishes, the electric energy that has charged into ni-cd battery 7 is fully under the state of discharge, if when recharging with the ni-cd battery 7 of 1 pair of dust catcher of charger, above-mentioned storage effect will take place the ni-cd battery, the chargeable amount of battery will reduce, and service time and useful life all will shorten; When storage effect is serious, charge volume will reduce to 70% of initial capacity, and the battery of having to more renew.
For solving the storage effect problem of ni-cd battery, nickel-hydrogen battery and lithium battery etc. have been developed in recent years.In Ni-MH battery, the cadmium negative electrode in the ni-cd battery is replaced by hydrogen bearing alloy, thereby can eliminate the storage effect of ni-cd battery; But the price of nickel-hydrogen battery is than ni-cd battery height, and power output is lower.Though lithium battery has very high electrical power storage density and weight less, lithium battery itself is very unstable, and the danger of blast is arranged under the situation in unprotect loop, therefore is not suitable for wireless dust collector.In view of this, need develop can be with the device of the residual electric energy forced electric discharge of ni-cd battery for the utmost point.
Three, summary of the invention
Purpose of the present invention promptly is to provide a kind of charger for wireless dust collector, make it carry out forced electric discharge to residual electric energy in the ni-cd battery, to prevent the generation of ni-cd battery storage effect, make the ni-cd battery keep the capacity of initial condition and prolong its useful life.
The present invention links the resistance with forced electric discharge function in the charging printed substrate of charger to achieve these goals.
Utilize above charger charging, can carry out forced electric discharge, thereby eliminate the storage effect in the ni-cd battery charge and discharge process electric energy residual in the ni-cd battery that is built in wireless dust collector.
Be described in further detail below in conjunction with the technical characterictic of specific embodiment charger for wireless dust collector of the present invention.
Four, description of drawings
Fig. 1 is the schematic diagram of wireless dust collector commonly used and charger.
Fig. 2 is the structured flowchart of charger for wireless dust collector of the present invention.
Fig. 3 is another enforcement illustration of charger for wireless dust collector of the present invention.
Fig. 4 is the charging schematic diagram of charger for wireless dust collector of the present invention.
Fig. 5 is the discharge schematic diagram of charger for wireless dust collector of the present invention.
Five, embodiment
As shown in Figure 2, charger for wireless dust collector 1a of the present invention mainly is made up of power plug, charging printed substrate 3, charging rack 4, rack splicing ear 5 and discharge resistance 20.The AC power supplies that charging printed substrate 3 can make power plug provide is converted to the DC power supply; Charging rack 4 is built in the charger and can contacts with dust catcher splicing ear 6 by rack splicing ear 5, so that DC power supply electrical power storage is to the ni-cd battery 7 that is built in the dust catcher 12; Discharge resistance 20 can be according to the perceptual signal of residual electric weight in charging printed substrate 3 pairs of batteries 7 and the residual electric energy of battery 7 is carried out forced electric discharge below the rated voltage.
As shown in Figure 3, the heat that produces when the residual electric energy of ni-cd battery is discharged for the discharge resistance 20 that makes in the charging printed substrate 3 cools off, and bosh or cooling fan as cooling device 21 have been installed in charger 1a.
As Fig. 4, shown in Figure 5, when utilizing charger for wireless dust collector 1a that wireless dust collector is charged, power plug is connected with supply socket, the AC power supplies of supply socket is converted to the DC power supply and is offered charging rack 4 by the charging printed substrate 3 of charger, when the rack 4 that will charge is connected in dust catcher 12, rack splicing ear 5 is in contact with one another with dust catcher splicing ear 6, and the DC power supply promptly offers the nickel-cadmium cell 7 that links to each other with the dust catcher splicing ear and to its charging.After the wireless dust collector 12 that has charged uses, to the ni-cd battery 7 of discharge when recharging fully not, the residual electric energy of charging printed substrate 3 perception ni-cd batteries 7 also is transferred to the discharge resistance 20 that links to each other with the printed substrate 3 that charges according to perceptual signal with the residual electric energy of nickel-cadmium cell 7 and discharges; Be discharged to rated voltage (near the voltage of discharge fully) and by after the induction of charging printed substrate 3, charging printed substrate 3 provides the DC power supply to charge to ni-cd battery 7 again.
In sum as can be known, when utilizing the present invention that wireless dust collector is recharged, the discharge resistance that is connected in the charging printed substrate can make residual electric energy forced electric discharge in the ni-cd battery, thereby prevent the generation of storage effect, can keep the chargeable amount of initial condition of battery and prolong useful life of nickel-cadmium cell.
Claims (1)
1, a kind of charger for wireless dust collector is by power plug, AC power supplies is converted to the charging printed substrate of DC power supply and contacts with the dust catcher splicing ear and ni-cd battery in placing dust catcher provides the charging rack of charging DC power supply to form by the rack splicing ear; Be characterised in that:
Described charging printed substrate is connected with and can knows that signal carries out the discharge resistance of forced electric discharge to electric energy residual in the ni-cd battery according to the residual inductance of charging printed substrate; Described discharge resistance is provided with cooling device, and cooling device is bosh or cooling fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144369 CN1287501C (en) | 2001-12-18 | 2001-12-18 | Charger for wireless dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144369 CN1287501C (en) | 2001-12-18 | 2001-12-18 | Charger for wireless dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427522A CN1427522A (en) | 2003-07-02 |
| CN1287501C true CN1287501C (en) | 2006-11-29 |
Family
ID=4677518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144369 Expired - Fee Related CN1287501C (en) | 2001-12-18 | 2001-12-18 | Charger for wireless dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1287501C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1752076B1 (en) * | 2005-08-11 | 2009-10-21 | BLACK & DECKER INC. | Hand-holdable vacuum cleaners |
| CN103178566A (en) * | 2011-12-26 | 2013-06-26 | 广州丰江电池新技术股份有限公司 | Uncharged state maintenance method and maintenance instrument of lithium battery pack unbalance |
-
2001
- 2001-12-18 CN CN 01144369 patent/CN1287501C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1427522A (en) | 2003-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20100118 |