CN209767169U - charging structure and dust catcher - Google Patents
charging structure and dust catcher Download PDFInfo
- Publication number
- CN209767169U CN209767169U CN201920089864.3U CN201920089864U CN209767169U CN 209767169 U CN209767169 U CN 209767169U CN 201920089864 U CN201920089864 U CN 201920089864U CN 209767169 U CN209767169 U CN 209767169U
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- 239000000428 dust Substances 0.000 title abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims description 36
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a charging structure and dust catcher, this charging structure includes: the charging interface, the voltage conversion circuit and the battery pack group; the charging interface is used for being electrically connected with the battery pack group through the voltage conversion circuit; the voltage conversion circuit is used for converting an input voltage into a preset output voltage. This dust catcher includes: the charging structure is arranged in the dust collector body. The application provides a charging structure through setting up the general interface that charges, adopts voltage conversion circuit, will charge the voltage of interface end input, converts the output voltage who predetermines into and charges for the battery package group, has satisfied consumer charging system's commonality, has improved charge efficiency, has reduced the wasting of resources simultaneously.
Description
Technical Field
The utility model relates to a general technical field that charges particularly, relates to a charge structure and dust catcher.
Background
Along with the continuous improvement of the quality of life of the public, people pay more and more attention to the cleaning requirement, and the dust collector is taken as a convenient and fast cleaning tool and enters thousands of households.
The charging voltage and the working battery corresponding to each type or model of the existing chargeable dust collector are different, the charging systems equipped with the existing chargeable dust collector are also different, and the corresponding charging interfaces are also differentiated.
due to the differentiation, the charging system of the rechargeable dust collector can only be a dedicated system, so that users are required to be equipped with different chargers, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a charging structure and dust catcher for among the solution prior art, the unsatisfied problem of commonality of dust catcher charging system.
the embodiment of the utility model is realized like this:
The utility model discloses a first aspect provides a charging structure, it includes: the charging interface, the voltage conversion circuit and the battery pack group;
The charging interface is used for being electrically connected with the battery pack group through the voltage conversion circuit; the voltage conversion circuit is used for converting an input voltage into a preset output voltage.
optionally, the voltage conversion circuit includes: a control circuit and a booster circuit;
the control circuit is connected with the booster circuit in series and used for controlling the booster circuit to be switched on or switched off according to the input voltage and a preset algorithm.
optionally, the boost circuit comprises: the voltage boosting circuit comprises a voltage input end, a boosting chip and a voltage output end;
The voltage input end, the boosting chip and the voltage output end are arranged in parallel; the charging interface is electrically connected with the voltage input end; the battery pack group is electrically connected with the voltage output end.
optionally, the boost chip includes: a ground pin GND, a power output pin SW, and an input voltage pin VIN; the voltage input terminal includes: a first support capacitor and a follow current inductor; the voltage output terminal includes: a conducting diode and a second supporting capacitor;
one end of the first supporting capacitor is connected with an input voltage pin VIN of the boosting chip, and the other end of the first supporting capacitor is connected with a grounding pin GND of the boosting chip; one end of the follow current inductor is connected with an input voltage pin VIN of the boost chip, and the other end of the follow current inductor is connected with a power output pin SW of the boost chip; one end of the conducting diode is connected with a power output pin SW of the boosting chip, the other end of the conducting diode is connected with one end of the second supporting capacitor, and the other end of the second supporting capacitor is connected with a grounding pin GND of the boosting chip.
Optionally, the boost chip further includes: an enable pin EN; the voltage input terminal further includes: electrolytic capacitors and zener diodes;
one end of the electrolytic capacitor is connected with an input voltage pin VIN of the boost chip, and the other end of the electrolytic capacitor is connected with a ground pin GND of the boost chip; one end of the voltage stabilizing diode is connected with an input voltage pin VIN of the boosting chip, and the other end of the voltage stabilizing diode is connected with an enabling pin EN of the boosting chip.
Optionally, the power supply further comprises a first power supply protection circuit;
The first power supply protection circuit is connected with the voltage stabilizing diode at the voltage input end of the voltage conversion circuit in parallel; the first power protection circuit comprises a first voltage dividing resistor; one end of the first voltage-dividing resistor is connected with an enable pin EN of the boost chip, and the other end of the first voltage-dividing resistor is connected with a ground pin GND of the boost chip.
Optionally, a second power protection circuit is further included;
The second power supply protection circuit is connected with the voltage output end of the voltage conversion circuit in parallel; the power supply protection circuit comprises a second voltage-dividing resistor and a third voltage-dividing resistor; the boost chip also comprises a feedback pin FB; one end of the second voltage-dividing resistor is connected with the conducting diode, and the other end of the second voltage-dividing resistor is connected with a feedback pin FB of the boost chip; one end of the third voltage dividing resistor is connected with a ground pin GND of the boost chip, and the other end of the third voltage dividing resistor is connected with a feedback pin FB of the boost chip.
Optionally, the charging interface comprises a double-sided pluggable interface TPYE-C or a Micro-serial universal bus interface Micro-usb.
Optionally, the boost chip adopts a VC302 switching boost-buck type DC-DC conversion chip.
The utility model discloses the second aspect provides a dust catcher, including the aforesaid charge structure and dust catcher body, charge structure set up in the dust catcher body.
The embodiment of the utility model provides a beneficial effect is: through set up general interface that charges on the dust catcher body, adopt voltage conversion circuit, the voltage of interface end input that will charge converts the output voltage of predetermineeing into and charges for the battery package group, has satisfied dust catcher charging system's commonality, has improved charge efficiency, has reduced the wasting of resources simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a first schematic view of a charging structure device according to an embodiment of the present disclosure;
Fig. 2 is a schematic diagram of a charging structure device according to an embodiment of the present disclosure;
Fig. 3 is a schematic diagram of a voltage conversion circuit according to an embodiment of the present application;
fig. 4 is a schematic structural view of a vacuum cleaner provided in the embodiment of the present application.
Icon: 110-a charging interface; 120-voltage conversion circuit; 121-a control circuit; 122-a boost circuit; 123-a first power supply protection circuit; 124-a second power protection circuit; 130-battery pack group; 200-cleaner body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
in the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
first embodiment
Referring to fig. 1, fig. 1 is a schematic view of a charging structure device according to an embodiment of the present application, which includes: charging interface 110, voltage conversion circuit 120 and battery pack group 130.
The charging interface 110 is electrically connected to the battery pack group 130 through the voltage conversion circuit 120; the voltage conversion circuit 120 is used for converting an input voltage into a preset output voltage.
Generally, the charging system of most of electric equipment adopts a special charging system, namely, the charging system can only be used for charging the matched charging equipment, so that the electric equipment cannot be charged in time when the matched charging equipment breaks down suddenly and cannot be overhauled in time, and the normal work of the electric equipment is influenced.
the charging interface 110 receives an input voltage from a charging device such as a general charging cable or an adapter, and the input voltage may be converted into an arbitrary voltage value required by the electric device and output the voltage value within a predetermined range by the voltage conversion circuit 120. And the output voltage is used to charge the battery pack 130 of the electric device so that the electric device can normally operate.
Alternatively, the charging interface 110 may be disposed at any position of the electric device, but it is desirable to be disposed relatively close to the battery pack group 130, so that the circuit design complexity is low.
The charging structure that this application embodiment provided, through setting up general interface 110 that charges, adopt voltage conversion circuit 120, the voltage of interface 110 end input that will charge converts the output voltage of predetermineeing into and charges for battery package group 130, has satisfied consumer charging system's commonality, has improved charge efficiency, has reduced the wasting of resources simultaneously.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic diagram of a charging structure device according to an embodiment of the present application, and fig. 3 is a schematic diagram of a voltage conversion circuit according to an embodiment of the present application, optionally, the voltage conversion circuit 120 includes: a control circuit 121 and a booster circuit 122; the control circuit 121 is connected in series with the voltage boost circuit 122, and the control circuit 121 is configured to control the voltage boost circuit 122 to turn on or off according to the input voltage and a predetermined algorithm.
The voltage conversion circuit 120 may convert an input low voltage into a high voltage, or convert an input high voltage into a low voltage, and select a circuit according to actual needs.
Optionally, in this embodiment, the voltage converting circuit 120 includes: a control circuit 121 and a booster circuit 122. The control circuit 121 can control the on/off frequency of the boost circuit 122 according to the value of the input voltage at the charging interface 110 and the charging voltage value required by the electric device, so as to obtain the required charging voltage value.
When a predetermined output voltage is obtained according to a different input voltage, the frequencies of turning on and off the booster circuit 122 are different. Alternatively, the control circuit 121 may calculate and obtain the frequency value according to a preset control algorithm, and the input voltage value and a preset output voltage value, so as to control the operating state of the voltage boost circuit 122.
in addition, the control circuit 121 may be integrated into the boost circuit 122, or may be designed separately, specifically designed according to actual requirements, and is not limited herein.
Alternatively, as shown in fig. 3, the booster circuit 122 includes: voltage input end, boost chip and voltage output end.
The voltage input end, the boost chip and the voltage output end are arranged in parallel; the charging interface 110 is electrically connected with the voltage input end; the battery pack 130 is electrically connected to the voltage output terminal.
Generally, the output voltage of an adapter commonly used by electronic equipment such as a mobile phone is about 9V to 12V, the voltage is relatively small, and the voltage value required by electric equipment with large power is difficult to meet.
A low voltage output from an adapter common to some electronic devices such as a smartphone can be input to the booster circuit 122 through the charging interface 110, and converted into a voltage value required by the electric device through the boost conversion of the booster circuit 122 to be output, and the battery pack group 130 is charged.
alternatively, as shown in fig. 3, the boost chip includes: a ground pin GND, a power output pin SW, and an input voltage pin VIN; the voltage input terminal includes: a first support capacitor and a follow current inductor; the voltage output terminal includes: a conducting diode and a second supporting capacitor.
One end of the first supporting capacitor is connected with VIN (Voltage Input) of the boost chip, and the other end of the first supporting capacitor is connected with GND (ground) of the boost chip; one end of the follow current inductor is connected with an input voltage pin VIN of the boost chip, and the other end of the follow current inductor is connected with a SW (power output pin) of the boost chip; one end of the conduction diode is connected with a power output pin SW of the boost chip, the other end of the conduction diode is connected with one end of the second supporting capacitor, and the other end of the second supporting capacitor is connected with a ground pin GND of the boost chip.
Optionally, the first supporting capacitor C1 is used to provide an input capacitor, that is, an input voltage, the freewheeling inductor L1 may be charged or discharged, the conducting diode D1 is a bidirectional diode, the conducting direction of the conducting diode D1 is different according to different operating states of the freewheeling inductor L1, and the second supporting capacitor C2 is used to provide an output capacitor, that is, an output voltage. The operating states of the various elements may also differ depending on the operating state of the circuit, but they may cooperate to perform different functions.
It should be noted that, the voltage difference between the two ends of the first supporting capacitor C1 generates an input voltage, that is, the input voltage of the voltage boost circuit 122, and in the process of boosting the input voltage, the control circuit 121 controls the voltage boost chip in the voltage boost circuit 122 to be turned on or off. When the boost chip is in an on state, the power output pin SW is in an operating state, the freewheeling inductor L1 is used for storing energy, i.e., charging, and the on-diode D1 is in a reverse off state. When the boost chip is in an off state, the power output pin SW is also in an off state at this time, the boost circuit 122 may release the point through the freewheeling inductor L1 to provide voltage and current for the circuit, that is, the freewheeling inductor L1 releases the energy stored in the charging process, at this time, the conducting diode D1 is in forward conduction, and the current at the end of the freewheeling inductor L1 flows to the second support capacitor C2 through the conducting diode D1, thereby ensuring that the circuit is continuously powered.
It should be noted that the boosting process can be regarded as an inductive energy transfer process. When charging, the inductor absorbs energy, and when discharging, the inductor emits energy. If the capacitance is large enough, a continuous current can be maintained at the output during the discharge. If this switching process is repeated, a voltage higher than the input voltage is obtained across the capacitor.
Optionally, as shown in fig. 3, the boost chip further includes: an enable pin EN; the voltage input terminal further includes: electrolytic capacitor and voltage regulator diode.
one end of the electrolytic capacitor is connected with an input voltage pin VIN of the boost chip, and the other end of the electrolytic capacitor is connected with a grounding pin GND of the boost chip; one end of the voltage stabilizing diode is connected with an input voltage pin VIN of the boost chip, and the other end of the voltage stabilizing diode is connected with an EN (Enable pin) of the boost chip.
It should be noted that the voltage input to the charging interface 110 through the charging line, the adapter, etc. is an ac voltage, so that the ac voltage needs to be converted into a dc voltage through rectification, and an electrolytic capacitor CIN with a large capacitance is connected to the circuit, so that the charging and discharging characteristics can be utilized to filter out high-frequency and pulse interference signals, and the rectified pulsating dc voltage becomes a relatively stable dc voltage. Similarly, an output electrolytic capacitor COUT may be connected in parallel to the voltage output terminal to improve the stability of the input voltage.
optionally, as shown in fig. 2, a first power protection circuit 123 is further included. As shown in fig. 3, the first power protection circuit 123 is connected in parallel with the zener diode at the voltage input terminal of the voltage conversion circuit 120; the first power supply protection circuit 123 includes a first voltage dividing resistor; one end of the first voltage-dividing resistor is connected with an enable pin EN of the boost chip, and the other end of the first voltage-dividing resistor is connected with a ground pin GND of the boost chip.
It should be noted that, the first voltage dividing resistor may also be called a pull-up resistor, and for some chips with open-drain output, a pull-up resistor must be added externally to obtain a high level. In some designs, in order to improve the anti-interference performance of the pin when inputting signals, a pull resistor can be added, and the driving energy of the pin is increased. In addition, the first voltage dividing resistor can also play a voltage dividing role to a certain extent, so that the circuit cannot be unstable due to sudden fluctuation of the input voltage.
optionally, as shown in fig. 2, a second power protection circuit 124 is further included.
As shown in fig. 3, the second power protection circuit 124 is connected in parallel with the voltage output terminal of the voltage conversion circuit 120; the power supply protection circuit comprises a second voltage-dividing resistor and a third voltage-dividing resistor; the boost chip also comprises a feedback pin FB; one end of the second voltage-dividing resistor is connected with the conducting diode, and the other end of the second voltage-dividing resistor is connected with a feedback pin FB of the boost chip; one end of the third voltage dividing resistor is connected with a ground pin GND of the boost chip, and the other end of the third voltage dividing resistor is connected with a feedback pin FB of the boost chip.
It should be noted that, when the output terminal of the power supply exceeds the rated load or is short-circuited, the power supply may be damaged, so that the device may not work normally. In this embodiment, the second power protection circuit 124 may be disposed in parallel at the voltage output end to ensure stable operation of the circuit.
The second voltage-dividing resistor and the third voltage-dividing resistor are connected in parallel to the feedback path, and mainly aim at increasing the feedback amount (namely feedback strength) when the output voltage changes and adjusting the output to be stable when the input voltage suddenly fluctuates or the output load suddenly fluctuates. The dynamic response process of the power supply is accelerated, so that the output fluctuation range is reduced when the input voltage or the load suddenly changes, the overshoot phenomenon is avoided, and the stability is improved. In practical use, if the parameters are configured appropriately, the boost chip can operate stably even in an idle state without oscillation (a normal switching power supply has a dummy load to increase stability in the idle state), and the dummy load can be eliminated or the power consumption of the dummy load can be reduced.
Optionally, charging interface 110 includes a dual-sided pluggable interface TPYE-C or a Micro-serial universal bus interface Micro-usb.
It should be noted that, in this embodiment, the charging interface 110 may adopt a common TPYE-C interface or a Micro-usb interface of a smart phone or the like, and simultaneously adopt a matching common adapter and a charging line, so that the universality of the charging system can be achieved.
Certainly, the charging interface 110 in this embodiment is not limited to the above TPYE-C interface or the Micro-usb interface, and may also be other universal charging interfaces 110, as long as the charging interfaces are matched with corresponding adapters and charging wires.
Optionally, the boost chip adopts a VC302 switching boost-buck type DC-DC conversion chip.
It should be noted that, the fixed switching frequency of the VC302 conversion chip is 400KHz, which can reduce the size of the external components. The chip has excellent linear regulation rate and load regulation rate, and the maximum output voltage can reach 60V. And reliability modules such as overcurrent protection, over-temperature protection, SW overvoltage protection and the like are integrated in the chip. In addition, the VC302 is a TO252-5L package, adopts standard external components and is flexible TO apply.
Optionally, the boost chip used in this embodiment is not limited to the VC302 model, and an appropriate chip may be selected according to actual circuit requirements, which is not specifically limited herein.
second embodiment
Referring to fig. 4, fig. 4 is a schematic view of a vacuum cleaner according to an embodiment of the present disclosure, the vacuum cleaner includes a vacuum cleaner body 200 and the charging structure, wherein the charging structure is disposed in the vacuum cleaner body 200.
Alternatively, as shown in fig. 4, the battery pack assembly 130 is disposed at the bottom of the cleaner body 200, and the charging interface 110 is disposed on the outer case corresponding to the battery pack assembly 130. Of course, the position arrangement of the charging interface 110 and the battery pack group 130 is not limited to that shown in the figure, and can be flexibly arranged according to actual conditions as long as the charging interface 110 and the battery pack group 130 are relatively close to each other, which facilitates circuit design.
optionally, the charging structure that this application provided, not limit to and use in the dust catcher, also can be other electrical equipment, supporting set up reasonable voltage conversion circuit, the interface that charges, adapter and charging wire can.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A charging structure, comprising: the charging interface, the voltage conversion circuit and the battery pack group;
The charging interface is used for being electrically connected with the battery pack group through the voltage conversion circuit;
The voltage conversion circuit is used for converting the input voltage into a preset output voltage;
the voltage conversion circuit includes: a control circuit and a booster circuit;
the control circuit is connected with the booster circuit in series and used for controlling the booster circuit to be switched on or switched off according to the input voltage and a preset algorithm;
The booster circuit includes: the voltage boosting circuit comprises a voltage input end, a boosting chip and a voltage output end;
The voltage input end, the boosting chip and the voltage output end are arranged in parallel;
The charging interface is electrically connected with the voltage input end;
the battery pack group is electrically connected with the voltage output end;
The boost chip includes: a ground pin GND, a power output pin SW, and an input voltage pin VIN; the voltage input terminal includes: a first support capacitor and a follow current inductor; the voltage output terminal includes: a conducting diode and a second supporting capacitor;
One end of the first supporting capacitor is connected with an input voltage pin VIN of the boosting chip, and the other end of the first supporting capacitor is connected with a grounding pin GND of the boosting chip; one end of the follow current inductor is connected with an input voltage pin VIN of the boost chip, and the other end of the follow current inductor is connected with a power output pin SW of the boost chip;
One end of the conducting diode is connected with a power output pin SW of the boosting chip, the other end of the conducting diode is connected with one end of the second supporting capacitor, and the other end of the second supporting capacitor is connected with a grounding pin GND of the boosting chip.
2. the charging structure of claim 1, wherein the boost chip further comprises: an enable pin EN; the voltage input terminal further includes: electrolytic capacitors and zener diodes;
one end of the electrolytic capacitor is connected with an input voltage pin VIN of the boost chip, and the other end of the electrolytic capacitor is connected with a ground pin GND of the boost chip;
one end of the voltage stabilizing diode is connected with an input voltage pin VIN of the boosting chip, and the other end of the voltage stabilizing diode is connected with an enabling pin EN of the boosting chip.
3. The charging structure of claim 2, further comprising a first power protection circuit;
The first power supply protection circuit is connected with the voltage stabilizing diode at the voltage input end of the voltage conversion circuit in parallel;
The first power protection circuit comprises a first voltage dividing resistor;
One end of the first voltage-dividing resistor is connected with an enable pin EN of the boost chip, and the other end of the first voltage-dividing resistor is connected with a ground pin GND of the boost chip.
4. The charging structure of claim 1, further comprising a second power protection circuit;
The second power supply protection circuit is connected with the voltage output end of the voltage conversion circuit in parallel;
The power supply protection circuit comprises a second voltage-dividing resistor and a third voltage-dividing resistor; the boost chip also comprises a feedback pin FB;
One end of the second voltage-dividing resistor is connected with the conducting diode, and the other end of the second voltage-dividing resistor is connected with a feedback pin FB of the boost chip;
one end of the third voltage dividing resistor is connected with a ground pin GND of the boost chip, and the other end of the third voltage dividing resistor is connected with a feedback pin FB of the boost chip.
5. The charging architecture of claim 1, wherein the charging interface comprises a double-sided pluggable interface TPYE-C or a Micro-serial universal bus interface Micro-usb.
6. the charging structure as claimed in any one of claims 1 to 4, wherein the boost chip adopts a VC302 switching boost-buck type DC-DC conversion chip.
7. A vacuum cleaner, comprising the charging structure as claimed in claims 1 to 6 and a vacuum cleaner body, wherein the charging structure is disposed in the vacuum cleaner body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089864.3U CN209767169U (en) | 2019-01-18 | 2019-01-18 | charging structure and dust catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089864.3U CN209767169U (en) | 2019-01-18 | 2019-01-18 | charging structure and dust catcher |
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| Publication Number | Publication Date |
|---|---|
| CN209767169U true CN209767169U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920089864.3U Expired - Fee Related CN209767169U (en) | 2019-01-18 | 2019-01-18 | charging structure and dust catcher |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497471A (en) * | 2020-03-18 | 2021-10-12 | 苏州宝时得电动工具有限公司 | Direct current power supply |
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2019
- 2019-01-18 CN CN201920089864.3U patent/CN209767169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497471A (en) * | 2020-03-18 | 2021-10-12 | 苏州宝时得电动工具有限公司 | Direct current power supply |
| CN113497471B (en) * | 2020-03-18 | 2023-12-08 | 苏州宝时得电动工具有限公司 | DC power supply |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Building 7, No.22, beiguandu Road, Yuexi street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU DANENG ZHONGCHUANG ELECTRICAL APPLIANCE Co.,Ltd. Address before: 215100 no.388 Ping'an Road, Linhu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU DANENG ZHONGCHUANG ELECTRICAL APPLIANCE Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |