A charging protection system for a floor scrubber

Abstract

The present invention discloses a charging protection system for a floor scrubber, comprising a charging base and a main unit, wherein the charging base is connected to a power source, the charging base is provided with a first charging part, the first charging part is connected to a charging distribution device, the main unit comprises a second charging part connected to the first charging part, a battery connected to the second charging part, a vacuum suction motor connected to the battery, a water pump and a roller brush motor; the charging distribution device comprises a first distribution circuit and a second distribution circuit, the first distribution circuit is connected to the battery and charges it; the second distribution circuit is connected to the vacuum suction motor, the water pump and the roller brush motor and supplies power to them; and the charging distribution device is provided with a controller, which can turn on the first distribution circuit and the second distribution circuit according to the battery charge amount when the main unit is placed on the charging base, thereby realizing simultaneous charging and powering of the cleaning roller.

Description

Technical Field

[0001] The present invention relates to the field of floor cleaning systems, and in particular to a charging protection system for a floor scrubber. Background Art

[0002] A floor scrubber is a device used to clean the floor. The current working principle of a floor scrubber is usually to spray clean water and detergent on the floor, and clean the floor with a roller brush. While cleaning, the sewage on the floor is sucked into the sewage tank inside the floor scrubber, thereby completing the cleaning process.

[0003] Existing floor scrubbers typically use a rotating roller brush to clean the floor. During the cleaning process, a lot of garbage and sewage will adhere to the surface of the roller brush. After the garbage is washed away with water, many water stains will also remain on the surface of the roller brush. As a result, the roller brush is always wet, which is conducive to the growth of bacteria and odors, causing inconvenience to users. Therefore, there is room for improvement.

[0004] However, existing floor scrubbers cannot charge their batteries while the brush rollers are being cleaned. Instead, the charging device switches the current to the batteries only after the cleaning rollers have finished their work. However, during home use, when only one area is left to clean or a large amount of contaminants are present, the battery may run out. Consequently, the scrubbers must be cleaned first before charging. This waiting period is frustrating and affects the user experience. Summary of the Invention

[0005] The main purpose of the present invention is to propose a charging protection system for a floor scrubber, which aims to improve the existing charging device so that simultaneous charging and power supply to the cleaning roller can be achieved, and it can also play a circuit protection role and improve the product user experience.

[0006] To achieve the above objectives, the present invention proposes a charging protection system for a floor scrubber, comprising:

[0007] A charging base, the charging base being connected to a power source and having a first charging portion connected to a charging distribution device;

[0008] A host, comprising a second charging unit connected to the first charging unit, a battery connected to the second charging unit, a vacuum suction motor connected to the battery, a water pump, and a roller brush motor;

[0009] The charging distribution device includes a first distribution circuit and a second distribution circuit, wherein the first distribution circuit is connected to the battery and charges the battery;

[0010] The second distribution circuit is connected to the vacuum suction motor, the water pump and the roller brush motor, and supplies power to them;

[0011] The charging distribution device is provided with a controller, which can turn on the first distribution circuit and the second distribution circuit according to the battery charge amount when the host is placed on the charging base.

[0012] Preferably, the first distribution circuit and the second distribution circuit have the same structure and are arranged in parallel.

[0013] Preferably, the first distribution circuit is connected in series with a resistor R1.

[0014] Preferably, the first distribution circuit and the second distribution circuit include a Q1-MOS tube connected to the charging end, a voltage stabilizing circuit and a power supply circuit connected to the Q1-MOS tube, and the power supply circuit is connected in parallel between the Q1-MOS tube power supply circuit.

[0015] Preferably, the Q1-MOS tube is provided with three pins, including a gate G1, a drain D1, and a source S1. The drain D1 is connected to the resistor R1, the source S1 is connected to the voltage stabilizing circuit, and the gate G1 is connected to the power supply circuit.

[0016] Preferably, the voltage stabilizing circuit includes a voltage stabilizing diode and an R2 resistor respectively connected in parallel with the Q1-MOS tube.

[0017] Preferably, the power supply circuit includes an R3 resistor and a Q2-MOS transistor arranged in series, two ends of the Q2-MOS transistor are respectively connected to the output circuit and the ground circuit, and the ground circuit is arranged in parallel with the output circuit.

[0018] Preferably, the Q2-MOS tube is provided with three pins, including a gate G2, a drain D2, and a source S2. The drain D2 is connected to the resistor R3, the source S2 is connected to the ground circuit, and the gate G2 is connected to the output circuit.

[0019] Preferably, the grounding circuit includes an R5 resistor connected in parallel, wherein an input end of the R5 resistor is connected to GND.

[0020] According to the technical solution of the present invention, when the main unit is placed on the charging base, the main unit can control the vacuum suction motor, water pump and roller brush motor to clean the roller brush. At this time, the controller can directly power the vacuum suction motor, water pump and roller brush motor through the first distribution circuit and the second distribution circuit, and can also charge the battery according to the usage of the battery; it avoids the problem of being unable to charge the battery when cleaning the roller brush, and supplying power separately can effectively ensure the stable power supply of each motor, and maintaining independent power supply can also effectively protect the battery, avoiding the problem of chemical substance attenuation caused by electricity consumption while charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Assigning circuit diagrams to the present invention;

[0022] Figure 2 This is a diagram of the charging framework. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] like Figures 1 to 2 As shown, a charging protection system for a floor scrubber includes:

[0027] A charging base, the charging base being connected to a power source and having a first charging portion connected to a charging distribution device;

[0028] A host, comprising a second charging unit connected to the first charging unit, a battery connected to the second charging unit, a vacuum suction motor connected to the battery, a water pump, and a roller brush motor;

[0029] The charging distribution device includes a first distribution circuit and a second distribution circuit, wherein the first distribution circuit is connected to the battery and charges the battery;

[0030] The second distribution circuit is connected to the vacuum suction motor, the water pump and the roller brush motor, and supplies power to them;

[0031] The charging distribution device is provided with a controller, which can turn on the first distribution circuit and the second distribution circuit according to the battery charge amount when the host is placed on the charging base.

[0032] When the main unit is placed on the charging base, the main unit can control the vacuum suction motor, water pump and roller brush motor to clean the roller brush. At this time, the controller can directly power the vacuum suction motor, water pump and roller brush motor through the first distribution circuit and the second distribution circuit, and can also charge the battery according to the usage of the battery; avoid the problem of being unable to charge the battery when cleaning the roller brush, and supplying power separately can effectively ensure the stable power supply of each motor, and maintaining independent power supply can also effectively protect the battery, avoiding the problem of chemical degradation caused by electricity consumption while charging.

[0033] In an embodiment of the present invention, the first distribution circuit and the second distribution circuit have the same structure and are arranged in parallel. The parallel arrangement can more effectively ensure the stability of power supply and charging.

[0034] Specifically, the first distribution circuit is connected in series with a resistor R1, which can effectively protect the battery from being charged and avoid current breakdown caused by a large instantaneous current generated at the moment of power-on.

[0035] More specifically, the first distribution circuit and the second distribution circuit include a Q1-MOS tube connected to the charging end, a voltage stabilizing circuit and a power supply circuit connected to the Q1-MOS tube, and the power supply circuit is connected in parallel between the Q1-MOS tube power supply circuit.

[0036] In the embodiment of the present invention, the Q1-MOS tube has three pins, including a gate G1, a drain D1, and a source S1. The drain D1 is connected to the resistor R1, the source S1 is connected to the voltage stabilizing circuit, and the gate G1 is connected to the power supply circuit.

[0037] The full Chinese name of insulated gate field effect transistor is metal-oxide semiconductor field effect transistor. Since the gate of this field effect transistor is isolated by an insulating layer, it is also called insulated gate field effect transistor. The English abbreviation is MOSFET, and it is generally referred to as MOS tube.

[0038] The input resistance of MOSFET is very high, up to 109Ω or more. Based on the conductive channel, it can be divided into N-channel and P-channel. Both N-channel and P-channel can be divided into enhancement type and depletion type.

[0039] The present invention adopts a P-channel enhancement type. If UGS does not reach the corresponding voltage value, the MOS will not be turned on. Therefore, the MOS tube is a voltage-controlled component, thereby avoiding the problem of misjudgment of circuit switching. Combined with the cooperation of Q1 and Q2, the current instability during switching in the circuit is avoided, effectively protecting the stable use of the circuit.

[0040] More specifically, the power supply circuit includes a series-connected resistor R3 and a MOS transistor Q2. The two ends of the MOS transistor Q2 are connected to the output circuit and a ground circuit, respectively. The ground circuit is connected in parallel with the output circuit. The R3 resistor and the MOS transistor Q1 further ensure stable current output, while the ground terminal effectively prevents the risk of short circuits or leakage.

[0041] In the embodiment of the present invention, the Q2-MOS tube has three pins, including a gate G2, a drain D2, and a source S2. The drain D2 is connected to the resistor R3, the source S2 is connected to the ground circuit, and the gate G2 is connected to the output circuit.

[0042] N-channel enhancement type MOS transistor is used here. It will be turned on when UGS is greater than a certain value. The "certain value" here refers to the turn-on voltage UGS(th). That is, when UGS does not reach the predetermined value, the circuit will not be connected, thereby effectively protecting the battery or motor.

[0043] Furthermore, the output circuit includes R4 resistors connected in series, wherein R4 resistors are variable frequency resistors that can adjust the current according to power supply requirements or battery charge level.

[0044] Furthermore, the grounding circuit includes an R5 resistor connected in parallel, wherein an input end of the R5 resistor is connected to GND.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A charging protection system for a floor scrubber, characterized in that: include: A charging base, the charging base being connected to a power source and having a first charging portion connected to a charging distribution device; A host, comprising a second charging unit connected to the first charging unit, a battery connected to the second charging unit, a vacuum suction motor connected to the battery, a water pump, and a roller brush motor; The charging distribution device includes a first distribution circuit and a second distribution circuit, wherein the first distribution circuit is connected to the battery and charges the battery; The second distribution circuit is connected to the vacuum suction motor, the water pump and the roller brush motor, and supplies power to them; The charging distribution device is provided with a controller, which can activate the first distribution circuit and the second distribution circuit according to the battery charge level when the host is placed on the charging base; The first distribution circuit and the second distribution circuit have the same structure and are arranged in parallel; The first distribution circuit is connected in series with a resistor R1; The first distribution circuit and the second distribution circuit include a Q1-MOS transistor connected to the charging end, a voltage stabilizing circuit and a power supply circuit connected to the Q1-MOS transistor, and the power supply circuit is connected in parallel between the Q1-MOS transistor power supply circuit; The Q1-MOS tube is provided with three pins, including a gate G1, a drain D1, and a source S1. The drain D1 is connected to the resistor R1, the source S1 is connected to the voltage stabilizing circuit, and the gate G1 is connected to the power supply circuit.

2. The charging protection system for a floor scrubber according to claim 1, characterized in that: The voltage stabilizing circuit includes a voltage stabilizing diode and an R2 resistor which are respectively connected in parallel with the Q1-MOS tube.

3. The charging protection system for a floor scrubber according to claim 1, characterized in that: The power supply circuit includes an R3 resistor and a Q2-MOS tube arranged in series, and two ends of the Q2-MOS tube are respectively connected to the output circuit and the ground circuit, and the ground circuit is arranged in parallel with the output circuit.

4. The charging protection system for a floor scrubber according to claim 3, characterized in that: The Q2-MOS tube has three pins, including a gate G2, a drain D2, and a source S2. The drain D2 is connected to the resistor R3, the source S2 is connected to the ground circuit, and the gate G2 is connected to the output circuit.

5. The charging protection system for a floor scrubber according to claim 4, characterized in that: The output circuit includes R4 resistors connected in series.

6. The charging protection system for a floor scrubber according to claim 4, characterized in that: The grounding circuit includes an R5 resistor connected in parallel, wherein an input end of the R5 resistor is connected to GND.

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