Vacuum cleaner and vacuum cleaner charging method

Abstract

The present invention is applicable to the field of battery charging control technology, and provides a vacuum cleaner and a vacuum cleaner charging method, wherein the vacuum cleaner comprises: a support rod; a vacuum cleaner body; a floor brush; a battery; a charging port disposed on the floor brush or at the lower end of the support rod; a charge-discharge conversion circuit disposed between the charging port and the battery; a positive cable and a negative cable disposed in the support rod, wherein one end of the positive cable and the negative cable are connected to the battery, and the other end is connected to the charge-discharge conversion circuit. The present invention disposes the charging port on the floor brush or at the lower end of the support rod, and can directly connect to a charger disposed on the ground or at the foot of a wall, so that charging can be achieved without disassembling the vacuum cleaner body. In order to avoid adding a line to achieve charging, the charge-discharge conversion circuit is added, and the positive cable and the negative cable are shared with the floor brush to achieve charging of the vacuum cleaner, without the need to add other lines, thereby saving costs.

Description

Technical Field

[0001] The invention belongs to the technical field of battery charging control, and in particular relates to a vacuum cleaner and a vacuum cleaner charging method. Background Art

[0002] The rechargeable vacuum cleaner is divided into a suction fan, a battery pack, a dust storage chamber, a hose, a hard tube and suction ports of different shapes. It has a high-vacuum electric suction fan. After power is turned on, the electric suction fan runs at high speed, forming an instantaneous vacuum inside the machine, making the internal air pressure much lower than the external air pressure. Under the action of this air pressure difference, dust and dirt enter the dust storage chamber of the vacuum cleaner with the air flow, and then pass through the filter. The dust and dirt remain in the dust bin under the action of centrifugal force, and the purified air is discharged out of the machine through the air outlet, and this cycle is repeated.

[0003] Rechargeable vacuum cleaners have the advantages of being easy to move and use. In existing rechargeable vacuum cleaners, the main body of the vacuum cleaner is usually installed at the upper end of the support rod. When the vacuum cleaner needs to be charged, the vacuum cleaner needs to be removed from the upper end of the support rod, charged with a special charger, and then installed back. This charging method brings many inconveniences to users, and the use effect is not good. Repeated disassembly and charging can also easily cause damage to the rechargeable vacuum cleaner. Summary of the invention

[0004] An embodiment of the present invention provides a vacuum cleaner, aiming to solve the problem of inconvenient charging of the vacuum cleaner.

[0005] The embodiment of the present invention is implemented as follows: a vacuum cleaner comprising:

[0006] Support rods;

[0007] A vacuum cleaner body disposed at the upper end of the support rod;

[0008] A floor brush is arranged at the lower end of the support rod, wherein a driving motor is arranged in the floor brush;

[0009] A battery disposed in the vacuum cleaner body;

[0010] A charging port disposed on the floor brush or at the lower end of the support rod;

[0011] A charge-discharge conversion circuit is provided between the charging port and the battery, wherein the charge-discharge conversion circuit is provided with a discharge terminal for supplying power to a driving motor of the floor brush;

[0012] A positive cable and a negative cable are arranged in the support rod, one end of the positive cable and the negative cable are connected to the battery, and the other end is connected to the charge-discharge conversion circuit.

[0013] Furthermore, the charge-discharge conversion circuit includes:

[0014] An identification module for identifying that a charger is connected to the charging port;

[0015] A conversion module for realizing charging and discharging conversion;

[0016] A control module controls the charge and discharge conversion of the conversion module.

[0017] Furthermore, the identification module includes a controller arranged between the positive pole and the negative pole of the charging port.

[0018] Furthermore, the identification module also includes a first diode which is arranged between the positive pole and the negative pole of the charging port and is connected in series with the controller, and the positive pole of the first diode is connected to the positive pole of the charging port.

[0019] Furthermore, a second diode is provided between the identification module and the discharge end, and a cathode of the second diode is connected to the discharge end.

[0020] Furthermore, the control module includes:

[0021] a first resistor connected to the identification module;

[0022] A first switch tube having a control electrode connected to the first resistor;

[0023] A second resistor is connected between the control electrode and the output electrode of the first switch tube.

[0024] Furthermore, the control module also includes:

[0025] a third resistor connected to the input terminal of the first switch tube;

[0026] A second switch tube having a control electrode connected to the third resistor;

[0027] A fourth resistor is connected between the control electrode and the input electrode of the second switch tube.

[0028] Furthermore, the conversion module includes:

[0029] A third switch tube whose input electrode is connected to the positive cable, whose output electrode is connected to the positive electrode of the discharge end, and whose control electrode is connected to the control module;

[0030] A fifth resistor provided between the input electrode and the control electrode of the third switch tube;

[0031] A sixth resistor is arranged between the control electrode of the third switch tube and the negative electrode cable.

[0032] Furthermore, the vacuum cleaner also includes an exhaust fan and a dust storage box arranged on the support rod.

[0033] The embodiment of the present invention further provides a vacuum cleaner charging method, which is used for the vacuum cleaner, comprising:

[0034] Identifying whether a charger is connected to the charging port;

[0035] Yes, the discharge circuit is switched to the charging circuit, and the battery stops discharging to the ground brush;

[0036] The charger charges the battery via the positive cable and the negative cable;

[0037] When the charger is removed, the charging circuit switches to the discharging circuit and the battery stops charging.

[0038] In the vacuum cleaner provided by the present invention, the charging port is arranged on the floor brush or at the lower end of the support rod, and can be directly connected to a charger arranged on the ground or at the foot of a wall, so that charging can be achieved without disassembling the vacuum cleaner body. In order to avoid adding lines to achieve charging, a charge and discharge conversion circuit is added, and the positive cable and the negative cable are shared with the floor brush to achieve charging of the vacuum cleaner. There is no need to add other lines, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the structure of a vacuum cleaner provided in Embodiment 1 of the present invention;

[0040] Figure 2 It is a charge-discharge conversion circuit diagram provided by Embodiments 2 to 5 of the present invention;

[0041] Figure 3 This is a flow chart of a vacuum cleaner charging method provided in Embodiment 6 of the present invention. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The present invention provides a vacuum cleaner, comprising: a battery, the battery comprising a battery, a charging port and a discharge end, the battery being arranged in the vacuum cleaner body, the charging port being arranged on the floor brush or at the lower end of the support rod, the driving motor of the floor brush being connected to the discharge end; a charge-discharge conversion circuit being arranged between the charging port and the discharge end; a positive cable and a negative cable being arranged in the support rod, one end of the positive cable and the negative cable being connected to the battery, and the other end being connected to the charge-discharge conversion circuit. The charging port is arranged on the floor brush, and can be directly connected to a charger arranged on the ground or at the foot of a wall, so that charging can be achieved without disassembling the vacuum cleaner body. In order to avoid adding lines to achieve charging, the charge-discharge conversion circuit is added, and the positive cable and the negative cable are shared with the floor brush, so that charging of the vacuum cleaner can be achieved without adding other lines, thereby saving costs.

[0044] Embodiment 1

[0045] An embodiment of the present invention provides a vacuum cleaner, such as Figure 1 As shown, including:

[0046] Support rod 100;

[0047] A vacuum cleaner body 200 disposed at the upper end of the support rod 100;

[0048] A floor brush 300 is arranged at the lower end of the support rod, and a driving motor (not shown in the figure) is arranged in the floor brush;

[0049] A battery disposed in the vacuum cleaner body 200;

[0050] A charging port 301 disposed on the floor brush 300 or at the lower end of the support rod 100;

[0051] A charge-discharge conversion circuit 600 is provided between the charging port 301 and the battery, and the charge-discharge conversion circuit 600 is provided with a discharge terminal 302 for supplying power to a driving motor of the floor brush 300;

[0052] The positive cable 400 and the negative cable 500 are arranged in the support rod 100 , and one end of the positive cable 400 and the negative cable 500 are connected to the battery, and the other end is connected to the charge-discharge conversion circuit 600 .

[0053] Specifically, the positive cable 400 and the negative cable 500 and the battery, and the discharge end 302 and the driving motor of the floor brush can be connected by quick-connect terminals or directly by welding.

[0054] The vacuum cleaner further includes an exhaust fan 101 and a dust storage box 102 which are arranged on the support rod 100 .

[0055] The working principle of the above-mentioned vacuum cleaner is: during the use of the vacuum cleaner, the charge and discharge conversion circuit 600 identifies in real time whether the charger is connected to the charging port 301, and switches the charge and discharge mode of the battery arranged at the upper end of the support rod 100 according to the identification result. When it is identified that the charger is connected to the charging port, the discharge circuit is switched to the charging circuit, and the vacuum cleaner body 200 stops discharging to the floor brush 300, and the charging circuit is turned on. At this time, the charger charges the vacuum cleaner body 200 through the positive cable 400 and the negative cable 500 until the charger is removed, the charging circuit is switched to the discharge circuit, and the vacuum cleaner body 200 stops charging.

[0056] The charger is generally set on the ground or at the foot of a wall. The charging port 301 is set on the floor brush 300 or at the lower end of the support rod 100, which can facilitate the connection between the charging port 301 and the charger. When charging is needed, you only need to move the vacuum cleaner near the charger and connect the charging port 301 on the floor brush 300 or at the lower end of the support rod 100 to the charger to achieve charging without removing the battery.

[0057] In this embodiment, the charging port 301 is set on the floor brush 300 or at the lower end of the support rod 100, and can be directly connected to a charger set on the ground or at the foot of a wall, so that charging can be achieved without removing the battery. In order to avoid adding lines to achieve charging, a charge and discharge conversion circuit 600 is added, and the positive cable 400 and the negative cable 500 are shared with the floor brush to achieve charging of the vacuum cleaner without adding other lines, thereby saving costs.

[0058] Embodiment 2

[0059] An embodiment of the present invention provides a vacuum cleaner, such as Figure 2 As shown, the charge-discharge conversion circuit 600 includes:

[0060] An identification module 601 for identifying that a charger is connected to the charging port 301;

[0061] A conversion module 602 for realizing charging and discharging conversion;

[0062] A control module 603 controls the charge and discharge conversion of the conversion module 602 .

[0063] Specifically, the identification module 601 includes a controller 611 disposed between the positive pole and the negative pole of the charging port 301 .

[0064] The functions of the controller 611 can be implemented by hardware circuits, such as Figure 2As shown, the hardware circuit includes a capacitor C1, a voltage regulator Z1 and a seventh resistor R7. The specific connection method is that the capacitor C1 is connected in parallel with the voltage regulator Z1 and then connected in series with the seventh resistor R7. The seventh resistor R7 is used to reduce the voltage, and the voltage regulator Z1 is used to stabilize the voltage within a predetermined range to ensure the safety of the first switch tube Q1 in the control module 603. When the charging port 301 is connected to a charger, the voltage of the charger turns on the first switch tube Q1, that is, the control module 603 is turned on. At this time, the conversion module 602 is not turned on, and the city power enters the positive electrode C+ and the negative electrode C- of the charging port 301 through the charger and then flows into the vacuum cleaner body 200, charging the vacuum cleaner body 200 and charging the capacitor C1; when the charging port 301 is not connected to a charger, the capacitor C1 discharges, causing the first switch tube Q1 to be disconnected, that is, the control module 603 is disconnected, and at this time, the conversion module 602 is turned on, and the battery is continuously discharged through the conversion module 602.

[0065] The controller 611 can also be implemented by MCU (Microcontroller Unit) or other hardware circuits. For example, MCUs such as STM32F103 and STM32F2X can be selected. The programs involved in the MCU are simple programs that can be easily implemented by those skilled in the art using existing program development platforms and well-known programming methods. They are conventional and adaptive applications and will not be described in detail here.

[0066] In this embodiment, the identification module 601 is used to identify that the charger is connected to the charging port 301, and the control module 603 controls the conversion module 602 to perform charging and discharging conversion according to the identification result. When it is identified that the charger is connected to the charging port 301, the control module 603 controls the conversion module 602 to be non-conductive, and the AC power enters the positive pole C+ and negative pole C- of the charging port 301 through the charger and then flows into the vacuum cleaner body 200 to charge the vacuum cleaner body 200. Otherwise, the control module 603 controls the conversion module 602 to be in the conductive state, and the battery continues to discharge through the conversion module 602.

[0067] Embodiment 3

[0068] An embodiment of the present invention provides a vacuum cleaner, such as Figure 2 As shown, based on the second embodiment, the identification module 601 further includes a first diode D1 arranged between the positive and negative electrodes of the charging port 301 and connected in series with the controller 611 , and the positive electrode of the first diode D1 is connected to the positive electrode of the charging port 301 .

[0069] In this embodiment, the first diode D1 is used for rectification to prevent the external voltage from being unstable, which may cause the voltage of the controller 611 to be unstable and affect the normal operation of the controller 611 .

[0070] Embodiment 4

[0071] An embodiment of the present invention provides a vacuum cleaner, such as Figure 2 As shown, on the basis of the second or third embodiment, a second diode D2 is provided between the identification module 601 and the discharge end 302 , and the cathode of the second diode D2 is connected to the discharge end 302 .

[0072] In this embodiment, the second diode D2 is used to prevent the controller 611 from being turned on during discharge, causing the controller 611 to work, thereby erroneously switching the charge and discharge circuits, and also to prevent the charging port from generating voltage, which affects safety in use.

[0073] Embodiment 5

[0074] An embodiment of the present invention provides a vacuum cleaner, such as Figure 2 As shown, based on the second embodiment, the control module 603 includes:

[0075] A first resistor R1 connected to the identification module 601;

[0076] A first switch tube Q1 having a control electrode connected to a first resistor R1;

[0077] A second resistor R2 is connected between the control electrode and the output electrode of the first switch tube Q1.

[0078] The control module 603 further includes:

[0079] A third resistor R3 connected to the input terminal of the first switch tube Q1;

[0080] A second switch tube Q2 having a control electrode connected to a third resistor R3;

[0081] A fourth resistor R4 is connected between the control electrode and the input electrode of the second switch tube Q2.

[0082] The conversion module 602 includes:

[0083] A third switch tube Q3 whose input electrode is connected to the positive cable 400, whose output electrode is connected to the positive electrode of the discharge end of the battery 200, and whose control electrode is connected to the control module 603;

[0084] A fifth resistor R5 is arranged between the input electrode and the control electrode of the third switch tube Q3;

[0085] A sixth resistor R6 is provided between the control electrode of the third switch tube Q3 and the negative electrode cable 500 .

[0086] like Figure 2As shown, in this embodiment, the first switch tube Q1, the second switch tube Q2, and the third switch tube Q3 are all P-type MOS tubes. Among them, when the identification module 601 identifies that the charger is connected to the charging port 301, the control module 603 controls the charging circuit to be turned on. Specifically, the controller 611 in the identification module 601 controls the output high level to drive the first switch tube Q1 to be turned on. After the first switch tube Q1 is turned on, the source and gate of the second switch tube Q2 are divided by R4 and R3 to obtain a turn-on voltage so that the second switch tube Q2 is also turned on accordingly, so that the source and gate voltages of the third switch tube Q3 are zero, so it is cut off. At this time, the battery in the vacuum cleaner body 200 starts Charging; on the contrary, when the identification module 601 does not recognize that the charger is connected to the charging port 301, the control module 603 controls the discharge circuit to be turned on. Specifically, the controller 611 in the identification module 601 controls the first switch tube Q1 to be turned off, the second switch tube Q2 to be turned off, and the signal flowing out through the positive electrode M+ of the battery in the vacuum cleaner body 200 turns on the third switch tube Q3. At this time, the battery 200 starts to discharge, that is, to power the driving motor of the floor brush 300. After turning on the switch of the floor brush 300, the floor brush 300 can start to work. The first resistor R1 is used for current limiting, and the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 are used for voltage division.

[0087] Embodiment 6

[0088] The embodiment of the present invention provides a vacuum cleaner charging method for a vacuum cleaner, such as Figure 3 As shown, the method includes:

[0089] Step S1, identifying whether the charger is connected to the charging port;

[0090] Step S2: yes, the discharge circuit is switched to a charging circuit, and the vacuum cleaner body stops discharging to the floor brush;

[0091] The control module controls the charging circuit to be turned on. Specifically, the controller in the identification module controls the output of a high level to drive the first switch tube Q1 to be turned on. After the first switch tube Q1 is turned on, the source and gate of the second switch tube Q2 are divided by R4 and R3 to obtain a turn-on voltage so that the second switch tube Q2 is also turned on accordingly. The signal enters the source and gate voltage of the third switch tube Q3 to be zero, so it is turned off;

[0092] Step S3, the charger charges the vacuum cleaner body through the positive cable and the negative cable;

[0093] Step S4: After the charger is removed, the charging circuit is switched to a discharging circuit, and the vacuum cleaner body stops charging;

[0094] When the identification module does not recognize that the charger is connected to the charging port, the control module controls the discharge circuit to be turned on. Specifically, the controller in the identification module controls the first switch tube Q1 to be turned off, the second switch tube Q2 to be turned off, and the signal flowing out through the positive electrode M+ of the battery in the vacuum cleaner body turns on the third switch tube Q3.

[0095] In this embodiment, when the vacuum cleaner needs to be charged, the charging port is connected to the charger. When the vacuum cleaner recognizes that the charger is connected to the charging port, that is, there is a mains signal connected to the charging port, the positive and negative poles of the charger, the charging port, the charge and discharge conversion circuit, the positive cable and the negative cable, and the positive and negative poles of the battery constitute a charging circuit, and the charger charges the battery in the vacuum cleaner body through the positive cable and the negative cable; when charging is completed, the charger is removed, and the vacuum cleaner cannot recognize that the charger is connected to the charging port. At this time, if the vacuum cleaner body is started, the positive and negative poles of the battery in the vacuum cleaner body, the positive cable and the negative cable, the charge and discharge conversion circuit, the discharge end, and the positive and negative poles of the drive motor in the floor brush constitute a discharge circuit, and the charging circuit is switched to a discharge circuit.

[0096] The embodiment of the present invention provides a vacuum cleaner and a method for charging the vacuum cleaner. The charging port is set on the floor brush, and can be directly connected to a charger set on the ground or at the foot of a wall, so that charging can be achieved without disassembling the vacuum cleaner body. In order to avoid adding lines to achieve charging, a charge-discharge conversion circuit is added, and the positive cable and the negative cable are shared with the floor brush to achieve charging of the vacuum cleaner without adding other lines, thereby saving costs. In the charge-discharge conversion circuit, the identification module is used to identify the charger connected to the charging port, and the control module controls the conversion module to perform charging and discharging conversion according to the identification result. The controller in the identification module can be implemented by an MCU or other hardware circuit. The first diode in the identification module is used for rectification to prevent the controller voltage from being unstable due to the instability of the external voltage, thereby affecting the normal operation of the controller. The second diode set on the positive cable between the identification module and the battery is used to prevent the controller from being turned on during discharge, so that the controller works, thereby switching the charge-discharge circuit by mistake, and also preventing the charging port from generating voltage, which affects the safety of use. Specifically, when the identification module recognizes that the charger is connected to the charging port, the control module controls the charging circuit to be turned on, and at this time, the vacuum cleaner body starts to charge. Conversely, the control module controls the discharge circuit to be turned on, and at this time, if the vacuum cleaner body is started, it starts to discharge.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum cleaner, characterized in that: include: Support rods; A vacuum cleaner body disposed at the upper end of the support rod; A floor brush is arranged at the lower end of the support rod, wherein a driving motor is arranged in the floor brush; A battery disposed in the vacuum cleaner body; A charging port disposed on the floor brush or at the lower end of the support rod; A charge-discharge conversion circuit is provided between the charging port and the battery, wherein the charge-discharge conversion circuit is provided with a discharge terminal for supplying power to a driving motor of the floor brush; A positive cable and a negative cable are arranged in the support rod, one end of the positive cable and the negative cable are connected to the battery, and the other end is connected to the charge-discharge conversion circuit; The charge-discharge conversion circuit comprises: An identification module for identifying that a charger is connected to the charging port; A conversion module for realizing charging and discharging conversion; A control module for controlling the charge and discharge conversion of the conversion module; The control module comprises: a first resistor connected to the identification module; A first switch tube having a control electrode connected to the first resistor; A second resistor connected between the control electrode and the output electrode of the first switch tube; The control module also includes: a third resistor connected to the input terminal of the first switch tube; A second switch tube having a control electrode connected to the third resistor; a fourth resistor connected between the control electrode and the input electrode of the second switch tube; The conversion module comprises: A third switch tube whose input electrode is connected to the positive cable, whose output electrode is connected to the positive electrode of the discharge end, and whose control electrode is connected to the control module; A fifth resistor provided between the input electrode and the control electrode of the third switch tube; A sixth resistor is arranged between the control electrode of the third switch tube and the negative electrode cable.

2. The vacuum cleaner according to claim 1, characterized in that The identification module includes a controller disposed between a positive pole and a negative pole of the charging port.

3. The vacuum cleaner according to claim 2, characterized in that: The identification module further includes a first diode which is arranged between the positive electrode and the negative electrode of the charging port and is connected in series with the controller, wherein the positive electrode of the first diode is connected to the positive electrode of the charging port.

4. The vacuum cleaner according to any one of claims 1 to 3, characterized in that: A second diode is arranged between the identification module and the discharge end, the cathode of the second diode is connected to the anode of the battery, and the anode of the second diode is connected to the anode of the charging port.

5. The vacuum cleaner according to claim 1, characterized in that: The vacuum cleaner also includes an exhaust fan and a dust storage box arranged on the support rod.

6. A vacuum cleaner charging method, used for the vacuum cleaner according to any one of claims 1 to 5, characterized in that: include: Identifying whether a charger is connected to the charging port; Yes, the discharge circuit is switched to the charging circuit, and the battery stops discharging to the ground brush; The charger charges the battery via the positive cable and the negative cable; When the charger is removed, the charging circuit switches to the discharging circuit and the battery stops charging.

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