CN206211613U - A kind of rechargeable dust collector - Google Patents
A kind of rechargeable dust collector Download PDFInfo
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- CN206211613U CN206211613U CN201621306357.3U CN201621306357U CN206211613U CN 206211613 U CN206211613 U CN 206211613U CN 201621306357 U CN201621306357 U CN 201621306357U CN 206211613 U CN206211613 U CN 206211613U
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Abstract
The utility model discloses a kind of rechargeable dust collector; when the temperature for solving charging base is raised; because heating causes to start the protection device inside charging base; now dust catcher causes the charging work cannot to complete; once protection device is damaged, powered when portable power source can be caused to charge intermittently, when temperature reaches certain height; the problem of fire even can occur, its drip irrigation device is：Battery charger cradle, locating piece are provided with charging base, locating slot is provided with body of dust collector, temperature-detecting device is provided with battery charger cradle, the end cap for installing temperature-detecting device is connected with battery charger cradle, some air vents are provided with end cap, also include temperature comparison means, temperature reference device, temperature control equipment, temperature performs device, heat sink, a kind of rechargeable dust collector of the present utility model, when the temperature of charging base is raised, heat sink will be started, charging base is lowered the temperature, the security that charging base is used is improve.
Description
Technical field
The utility model is related to a kind of cleaning device, more particularly to a kind of rechargeable dust collector.
Background technology
Dust catcher is a kind of cleaning equipment for clearing up ground or corresponding place, and dust catcher is when in use, it is necessary to make
Electricity is used, current dust catcher is divided into line style, radio-type, radio-type needs by electricity be full of and could use using preceding.
In the prior art, such as the Chinese patent of Publication No. CN204192519U, a kind of charging bottom of portable dust collector
Seat, including the base supporting plate of portable dust collector is carried, base supporting plate end face formation special-shaped slot, the bay front portion of base bay,
Bay rear portion is inserted into above-mentioned special-shaped slot with reference to the special-shaped block that rear lower is formed, and it is standby that bay rear portion back is horizontally arranged with insertion
Support is filled with the side of power supply, the main power source in the portable dust collector is in parallel with stand-by power supply.
Charging base is a kind of equipment charged to dust catcher, needs to fill the contact alignment on dust catcher when using
Guide card on electric base is attached, it is possible to charged, and during charging, charging base can produce substantial amounts of heat
Amount, when temperature reaches certain height, because heating causes to start the protection device inside charging base, now dust catcher is led
Causing charging work cannot complete, once protection device is damaged, be powered when portable power source can be caused to charge intermittently, work as heat
When degree reaches certain height, or even fire can occur, also improved space.
Utility model content
The purpose of this utility model is to provide a kind of rechargeable dust collector, when the temperature of charging base is raised, will start
Heat sink, lowers the temperature to charging base, improves the security that charging base is used.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of rechargeable dust collector, including body of dust collector, the charging base for dust catcher charging, set on the charging base
Battery charger cradle is equipped with, locating piece is provided with the battery charger cradle, the positioning for locating piece clamping is provided with the body of dust collector
Groove, the side of remotely located piece of the battery charger cradle is provided with the temperature physical quantity for detecting charging base and by temperature physical quantity
The temperature-detecting device of temperature detection signal is converted to, the end cap for installing temperature-detecting device, institute are connected with the battery charger cradle
State and be provided with end cap some air vents, also including being coupled to temperature-detecting device to receive temperature detection signal and output temperature
The temperature comparison means of comparison signal, compare for providing temperature reference value signal to the temperature corresponding with maximum permissible temperature
The temperature reference device of device, it is coupled to temperature comparison means to receive the temperature of temperature comparison signal and output temperature control signal
Degree control device, it is coupled to temperature control equipment and performs the temperature of signal receiving temperature control signals and output temperature and perform dress
The cooling put, being coupled to temperature performs device to receive temperature execution signal and perform signal in response to temperature to realize cooling is filled
Put；
When maximum permissible temperature of the temperature that the temperature-detecting device is detected more than temperature reference device, the temperature
Degree control device control temperature performs device starts, and the temperature performs device controls heat sink to realize cooling.
Using such scheme, body of dust collector can be installed on charging base, and battery charger cradle is provided with charging base,
Locating piece on battery charger cradle is worked in coordination with the locating slot on body of dust collector, contact is contacted with each other with guide card, realizes charging,
And the opposite side on battery charger cradle is provided with temperature-detecting device, the temperature of charging base can be detected with real-time detection, together
When end cap and battery charger cradle clamping install conveniently, and passage is provided with end cap, the setting of passage fills temperature detection
Putting can carry out more specific contact to the heat of charging base, improve the accuracy in detection of temperature-detecting device, while
Temperature comparison means is coordinated to be compared, once the temperature that temperature-detecting device is detected is more than the temperature that temperature reference device is provided
Degree will export the temperature comparison signal of high level, promote temperature control equipment to turn on, so that the control cooling of temperature performs device
Device is lowered the temperature to charging base.
Preferably, the temperature reference device is also coupled to the adjusting apparatus for adjusting temperature reference value signal.
Using such scheme, the setting of adjusting apparatus, the temperature reference value signal for providing temperature reference device enters
Row adjustment, it is easy to use such that it is able to change the value of maximum permissible temperature, it is practical.
Preferably, the temperature control equipment includes being coupled to temperature comparison means receiving temperature comparison signal and defeated
Go out the temperature switch circuit of temperature switch signal, be coupled to temperature switch circuit to receive temperature switch signal and output temperature control
Signal processed to temperature performs device temperature triggered circuit.
Using such scheme, temperature switch circuit in circuit as the circuit of on-off action, when temperature comparison means is defeated
After going out the temperature comparison signal of high level, temperature switch circuit will be turned on, so that temperature triggered circuit turn-on, reaction speed
Hurry up, while controlling temperature performs device to start.
Preferably, the temperature control equipment also includes being coupled to temperature switch circuit to receive temperature switch signal simultaneously
The delay circuit of time delayed signal is exported, the temperature triggered circuit is coupled to delay circuit with reception delay signal and output temperature
Control signal is to temperature performs device.
Using such scheme, the setting of delay circuit makes temperature switch circuit after switch, and temperature triggered circuit will not
The very first time turns on, now, when the constant temperature that temperature-detecting device detects charging base is higher than maximum permissible temperature,
Time delay terminates to close, so that temperature triggered circuit turn-on, improves the detection accuracy of temperature-detecting device, reduces temperature
The detection error of detection means is spent, it is practical.
Preferably, the temperature control equipment also includes being coupled to delay circuit with reception delay signal and output light
The light transmission circuit of receiving and transmitting signal, the temperature triggered circuit is coupled to light transmission circuit to receive light receiving and transmitting signal simultaneously
Output temperature control signal is to temperature performs device.
Using such scheme, light transmission circuit plays buffer action to input, output electric signal, this completes electricity-
The conversion of light-electricity, so as to play a part of input, output, isolation.Because the input of light transmission circuit, outlet chamber are mutually separated by
From the characteristics of electric signal transmission has one-way, thus with good electrical isolation capabilities and antijamming capability.Again due to light
The input of transmission circuit belongs to the low-resistance element of current mode work, thus with very strong common mode inhibition capacity, it is practical.
Preferably, the light transmission circuit includes that be coupled to delay circuit is sent out with reception delay signal and output light
Penetrate the light emitters of signal, be coupled to light emitters to receive light transmission signal and output light receiving and transmitting signal to temperature
The light receiver of triggers circuit.
Using such scheme, light emitters can send the light of certain wavelength, received by light receiver and produce photoelectricity
Stream, then exported after further amplifying, and be mutually isolated between light emitters, light receiver, improve electric insulation
Ability, improves the jamproof ability of circuit.
Preferably, the temperature control equipment is also coupled to the instruction of the working condition for indicating temperature control equipment
Device.
Using such scheme, the setting of instruction device is indicated the working condition of temperature control equipment, made one
Can be clearly understood that the working condition of temperature control equipment, when circuit malfunctions, maintenance personal can also be from
The instruction situation of instruction device, the preliminary quality for understanding temperature control equipment, improves maintenance efficiency of the maintenance personal to circuit,
It is practical.
Preferably, the temperature performs device includes being coupled to temperature control equipment receiving temperature control signals and defeated
Go out to perform the execution on-off circuit of switching signal, be coupled to execution on-off circuit and perform switching signal and output temperature and hold receiving
Row signal to heat sink execution triggers circuit.
Using such scheme, the setting of on-off circuit is performed, in circuit as the circuit of on-off action, when performing switch
After circuit receives the temperature control signals of high level, will turn on, now performing triggers circuit will respond, reaction speed
Hurry up, directly control refrigerating plant to start while performing triggers circuit, charging base is lowered the temperature.
Preferably, also including that be coupled to temperature performs device performs signal and perform letter in response to temperature to receive temperature
Number alarm device.
Using such scheme, the setting of alarm device, when making the temperature of charging base too high, temperature performs device is except control
Heat sink processed is lowered the temperature to charging base, while alarm device can also started, user of service is warned.
Preferably, the alarm device includes that be coupled to temperature performs device shakes to receive temperature execution signal and output
Swing the oscillating circuit of signal, be coupled to oscillating circuit to receive oscillator signal and in response to oscillator signal to realize intermittent alarm
Warning circuit.
Using such scheme, the setting of oscillating circuit makes warning circuit for a long time not send sound, but by
The carrying out of having a rest property is alerted, and reduces and sends sound for a long time, and the life to people is impacted, except being carried out to overheat condition
Prompting, also improves the comfortableness of people's life.
In sum, the utility model has the advantages that：
1st, when body of dust collector is placed on charging base to be charged, temperature that can be in real time to charging base is examined
Survey, when temperature exceedes maximum permissible temperature, charging base will be lowered the temperature；
2nd, the setting of instruction device, the working condition for making temperature control equipment indicated '
3rd, alarm device carries out intermittent alarm, when temperature exceedes maximum permissible temperature, will send alarm prompt
People.
Brief description of the drawings
Fig. 1 is body of dust collector, the scheme of installation of charging base；
Fig. 2 is body of dust collector, the partial exploded view of charging base；
Fig. 3 is the exploded perspective view of charging base；
Fig. 4 is temperature-detecting device, temperature comparison means, temperature reference device, adjusting apparatus, temperature control equipment, refers to
The circuit connection diagram of showing device；
Fig. 5 is temperature performs device, heat sink, the circuit connection diagram of alarm device.
In figure：1st, body of dust collector；2nd, charging base；3rd, battery charger cradle；4th, locating piece；5th, locating slot；6th, temperature detection dress
Put；7th, end cap；8th, air vent；9th, temperature comparison means；10th, temperature reference device；11st, temperature control equipment；12nd, temperature is performed
Device；13rd, heat sink；14th, adjusting apparatus；15th, temperature switch circuit；16th, temperature triggered circuit；17th, delay circuit；18、
Light transmission circuit；19th, light emitters；20th, light receiver；21st, instruction device；22nd, on-off circuit is performed；23rd, perform
Triggers circuit；24th, alarm device；25th, oscillating circuit；26th, warning circuit；27th, guide card；28th, contact；29th, front end；30th, rear end；
31st, cavity；32nd, semiconductor chilling plate；33rd, fin；34th, louvre.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As Figure 1-3, a kind of rechargeable dust collector disclosed in the present embodiment, including body of dust collector 1, for dust catcher charge
Charging base 2, battery charger cradle 3 is provided with charging base 2, locating piece 4 is provided with battery charger cradle 3, on body of dust collector 1 set
There is the locating slot 5 for the clamping of locating piece 4, guide card 27 is provided with battery charger cradle 3, be provided with body of dust collector 1 in guide card 27 1
One corresponding contact 28, the side that remotely located piece 4 of battery charger cradle 3 is provided with temperature-detecting device 6, and peace is connected with battery charger cradle 3
The end cap 7 of temperature-detecting device 6 is filled, some air vents 8 is provided with end cap 7, charging base 2 includes front end 29 and rear end 30,
Cavity 31 is provided between front end 29 and rear end 30, the side in cavity 31 near battery charger cradle 3 is provided with semiconductor chilling plate 32,
And binded using heat conductive silica gel near the side of battery charger cradle 3 in the refrigeration end of semiconductor chilling plate 32 and cavity 31, semiconductor system
The radiating end of cold 32 is bonded with fin 33 using heat conductive silica gel, and the louvre worn for fin 33 is provided with rear end 30
34, front end 29 is bolted to connection with rear end 30.
As shown in figure 4, temperature-detecting device 6 includes resistance RT, resistance R4, resistance RT is the thermistor and type of positive coefficient
Number it is the thermistor of MF58 series, resistance R4 is divider resistance, and one end of resistance RT is connected with power supply VCC, and resistance RT's is another
One end is connected with one end of resistance R4, and the other end of resistance R4 is connected with ground GND.
As shown in figure 4, temperature comparison means 9 is comparator N1, the model LM324 of comparator N1, comparator N1's is anti-
Phase input is connected with the tie point of resistance RT, resistance R4.
As shown in figure 4, temperature reference device 10 includes resistance R1, resistance R2, resistance R3.Adjusting apparatus 14 are organized into groups to slide
RP1.One end of slide rheostat RP1 is connected with power supply VCC, the other end of slide rheostat RP1 and the control of slide rheostat RP
End processed, one end connection of resistance R1, the other end of resistance R1 one end respectively with resistance R2, one end of resistance R3 are connected, resistance
The other end of R2 is connected with ground GND, and the other end of resistance R3 is connected with the in-phase input end of comparator N1.
As shown in figure 4, temperature control equipment 11 include temperature switch circuit 15, temperature triggered circuit 16, delay circuit 17,
Light transmission circuit 18.Light transmission circuit 18 includes light emitters 19, light receiver 20.Instruction device 21 is luminous two
Pole pipe LED1, temperature switch circuit 15 is triode Q1, and triode Q1 is the triode and model 2SC4019, temperature of NPN type
Triggers circuit 16 is relay KM1, and delay circuit 17 is time relay KT1, and light emitters 19 are LED 2,
Light receiver 20 is phototriode Q2, and light emitters 19 form a pair of photo-couplers with light receiver 20.Comparator
The output end of N1 is connected with the base stage of triode Q1, and the emitter stage of triode Q1 be connected with ground GND, the colelctor electrode of triode Q1 and
One end connection of time relay KT1, the other end of time relay KT1 is connected with the negative electrode of LED 1, lights
The anode of diode (LED) 1 is connected with power supply VCC, and one end of time relay normally opened contact KT1-1 is connected with power supply VCC, the time
The other end of relay KT1-1 is connected with the anode of LED 2, and negative electrode and the ground GND of LED 2 connect
Connect, LED 2 is coupled to phototriode Q2, the emitter stage of phototriode Q2 is connected with ground GND, photosensitive three pole
The colelctor electrode of pipe Q2 is connected with one end of relay KM1, and the other end of relay KM1 is connected with power supply VCC.
As shown in Figure 4,5, temperature performs device 12 includes performing on-off circuit 22, performs triggers circuit 23.Perform switch
Circuit 22 includes resistance R5, triode Q3, and triode Q3 is NPN type triode and model 2SC4019.Relay normally open contact
One end of KM1-1 is connected with power supply VCC, and the other end of relay normally open contact KM1-1 is connected with one end of resistance R5, resistance R5
The other end be connected with the base stage of triode Q3, the emitter stage of triode Q3 be connected with ground GND, the colelctor electrode of triode Q3 and after
One end connection of electrical equipment KM2, the other end of relay KM2 is connected with power supply VCC.
As shown in figure 5, heat sink 13 is semiconductor chilling plate 32, the model TEC1- of semiconductor chilling plate 32
12730T125.One end of relay normally open contact KM2-2 is connected with power supply VCC, the other end of relay normally open contact KM2-2
One end with semiconductor chilling plate 32 is connected, and the other end of semiconductor chilling plate 32 is connected with ground GND.
As shown in figure 5, alarm device 24 includes oscillating circuit 25, warning circuit 26.Oscillating circuit 25 includes resistance R6, electricity
Hold C1, NAND gate A1, NAND gate A2 compositions, NAND gate A1, the model of NAND gate A2 are 74LS00, and warning circuit 26 includes electricity
Resistance R7, electric bell HA.One end of relay normally open contact KM2-1 is connected with power supply VCC, and relay normally open contact KM2-1's is another
End is connected with an input of NAND gate A1, another input of NAND gate A1 one end, electric capacity C1 respectively with resistance R6
One end connection, the other end of resistance R6 output end, an input of NAND gate A2, NAND gate A2 respectively with NAND gate A1
The connection of another input, the other end of electric capacity C1 output end respectively with NAND gate A2, one end of resistance R7 be connected, resistance
The other end of R7 is connected with one end of electric bell HA, and the other end of electric bell HA is connected with ground GND.
The course of work：
1st, with temperature rising, the resistance of resistance RT becomes big to resistance RT, when temperature detection signal is more than maximum allowable temperature
During benchmark value signal, comparator N1 exports the temperature comparison signal of high level, and now the base stage of triode Q1 receives high level
Signal after, triode Q1 conductings, time relay KT1 obtains electric, LED 1 electroluminescence, postpone a period of time
Afterwards, when temperature is again without maximum allowable temperature is dropped to, time relay normally opened contact KT1-1 closures, light emitting diode
LED2 must be conducted, and phototriode Q2 receives the optical signal conducting of LED 2, and relay KM1 obtains electric, relay
Device normally opened contact KM1-1 is closed, and the base stage of triode Q3 receives the signal conduction of high level, and relay KM2 obtains electric, relay
Normally opened contact KM2-2 is closed, and semiconductor chilling plate 32 starts to lower the temperature charging base 2, relay normally open contact KM2-1 closures,
The starting of oscillation of oscillating circuit 25, electric bell HA starts intermittence and rings a bell.
2nd, with temperature rising, the resistance of resistance RT becomes big to resistance RT, when temperature detection signal is less than maximum allowable temperature
During benchmark value signal, comparator N1 exports low level temperature comparison signal, and now the base stage of triode Q1 receives low level
Signal after, triode Q1 is not turned on, time relay KT1 must not electricity, LED 1 do not light, and the time relay is normal
Open contact KT1-1 dead electricity to disconnect, the dead electricity of LED 2 does not light, and phototriode Q2 can not receive light emitting diode
The optical signal of LED2 is not turned on, and relay KM1 must not electricity, relay normally open contact KM1-1 disconnections, the base stage reception of triode Q3
It is not turned on to low level signal, relay KM2 must not electricity, the disconnection of relay normally open contact KM2-2 dead electricity, semiconductor chilling plate
32 do not work, and relay normally open contact KM2-1 dead electricity disconnects, and the not starting of oscillation of oscillating circuit 25, electric bell HA does not work.
This specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. a kind of rechargeable dust collector, including body of dust collector (1), the charging base (2) charged for dust catcher, it is characterized in that：Institute
State and battery charger cradle (3) is provided with charging base (2), locating piece (4), the body of dust collector are provided with the battery charger cradle (3)
(1) locating slot (5) for locating piece (4) clamping is provided with, the side of the battery charger cradle (3) remotely located piece (4) is provided with
For detecting the temperature physical quantity of charging base (2) and temperature physical quantity being converted to the temperature-detecting device of temperature detection signal
(6) end cap (7) for installing temperature-detecting device (6), is connected with the battery charger cradle (3), is provided with the end cap (7) some
Air vent (8), the also temperature including being coupled to temperature-detecting device (6) to receive temperature detection signal and output temperature comparison signal
Degree comparison means (9), for providing the temperature reference value signal corresponding with maximum permissible temperature to temperature comparison means (9)
Temperature reference device (10), it is coupled to temperature comparison means (9) to receive temperature comparison signal and output temperature control signal
Temperature control equipment (11), it is coupled to temperature control equipment (11) and performs signal to receive temperature control signals and output temperature
Temperature performs device (12), be coupled to temperature performs device (12) with receive temperature perform signal and in response to temperature perform signal
To realize the heat sink (13) of cooling；
When maximum permissible temperature of the temperature that the temperature-detecting device (6) is detected more than temperature reference device (10), institute
Stating temperature control equipment (11) controls temperature performs device (12) to start, and the temperature performs device (12) controls heat sink
(13) with realize cooling.
2. a kind of rechargeable dust collector according to claim 1, it is characterized in that：The temperature reference device (10) has been also coupled to
Adjusting apparatus (14) for adjusting temperature reference value signal.
3. a kind of rechargeable dust collector according to claim 1, it is characterized in that：The temperature control equipment (11) includes coupling
In temperature comparison means (9) receiving temperature switch circuit (15), the coupling of temperature comparison signal and output temperature switching signal
In temperature switch circuit (15) receiving the temperature of temperature switch signal and output temperature control signal to temperature performs device (12)
Degree triggers circuit (16).
4. a kind of rechargeable dust collector according to claim 3, it is characterized in that：The temperature control equipment (11) also includes coupling
Temperature switch circuit (15) is connected to receive temperature switch signal and export the delay circuit (17) of time delayed signal, the temperature is touched
Power Generation Road (16) is coupled to delay circuit (17) with reception delay signal and output temperature control signal to temperature performs device
(12)。
5. a kind of rechargeable dust collector according to claim 4, it is characterized in that：The temperature control equipment (11) also includes coupling
Delay circuit (17) is connected to reception delay signal and the light transmission circuit (18) of output light receiving and transmitting signal, the temperature is touched
Power Generation Road (16) is coupled to light transmission circuit (18) and is held with receiving light receiving and transmitting signal and output temperature control signal to temperature
Luggage is put (12).
6. a kind of rechargeable dust collector according to claim 5, it is characterized in that：The light transmission circuit (18) includes coupling
In delay circuit (17) with the light emitters (19) of reception delay signal and output light transmission signal, be coupled to light and launch
Device (19) is receiving the light receiver (20) of light transmission signal and output light receiving and transmitting signal to temperature triggered circuit (16).
7. a kind of rechargeable dust collector according to claim 1, it is characterized in that：The temperature control equipment (11) has been also coupled to
Instruction device (21) for indicating the working condition of temperature control equipment (11).
8. a kind of rechargeable dust collector according to claim 1, it is characterized in that：The temperature performs device (12) includes coupling
In temperature control equipment (11) with receive temperature control signals and export perform switching signal execution on-off circuit (22), coupling
Touched in the execution for performing on-off circuit (22) to receive execution switching signal and output temperature execution signal to heat sink (13)
Power Generation Road (23).
9. a kind of rechargeable dust collector according to claim 1, it is characterized in that：Also include being coupled to temperature performs device (12)
To receive the alarm device (24) that temperature performs signal and signal is performed in response to temperature.
10. a kind of rechargeable dust collector according to claim 9, it is characterized in that：The alarm device (24) is including being coupled to
Temperature performs device (12) performs the oscillating circuit (25) of signal and outputting oscillation signal, is coupled to oscillating circuit to receive temperature
(25) receiving oscillator signal and in response to oscillator signal to realize the warning circuit (26) of intermittent alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621306357.3U CN206211613U (en) | 2016-12-01 | 2016-12-01 | A kind of rechargeable dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621306357.3U CN206211613U (en) | 2016-12-01 | 2016-12-01 | A kind of rechargeable dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211613U true CN206211613U (en) | 2017-05-31 |
Family
ID=58752259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621306357.3U Expired - Fee Related CN206211613U (en) | 2016-12-01 | 2016-12-01 | A kind of rechargeable dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381118A (en) * | 2017-08-08 | 2019-02-26 | 日立空调·家用电器株式会社 | The cradle of electric vacuum cleaner |
| CN110381791A (en) * | 2017-06-14 | 2019-10-25 | 东芝生活电器株式会社 | Electric dust collector |
-
2016
- 2016-12-01 CN CN201621306357.3U patent/CN206211613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381791A (en) * | 2017-06-14 | 2019-10-25 | 东芝生活电器株式会社 | Electric dust collector |
| CN109381118A (en) * | 2017-08-08 | 2019-02-26 | 日立空调·家用电器株式会社 | The cradle of electric vacuum cleaner |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20211201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |