Cleaning device

Abstract

A cleaning device includes a heater, a liquid delivery system, a motor, and a switch. The switch comprises a first pair of contacts and a second pair of contacts which are respectively connected to a power supply loop of the heater and a power supply loop of the motor. When the switch is in the first state, the first pair of contacts and the second pair of contacts are conducted at the same time, so that a power supply loop of the heater and a power supply loop of the motor are both connected. And when the switch is in the second state, the first pair of contacts and the second pair of contacts are disconnected at the same time, so that the power supply loop of the heater and the power supply loop of the motor are disconnected. The current when the power supply loop of the heater is switched on and the current when the power supply loop of the motor is switched on are both smaller than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current when the power supply loop of the heater is switched on and the current when the power supply loop of the motor is switched on is larger than the rated current of the first pair of contacts and the second pair of contacts. The structure is favorable for reducing the manufacturing cost of the cleaning equipment and prolonging the service life of the switch.

Description

Technical Field

[0001] The present disclosure relates to the field of cleaning technology, and in particular, to a cleaning device. Background Art

[0002] As living standards continue to improve, people's requirements for their living and working environments are becoming increasingly higher. To ensure a clean environment, cleaning equipment has emerged for cleaning various places and objects. The use of cleaning equipment not only reduces the labor cost of cleaning work but also improves cleaning efficiency, leading to its widespread use.

[0003] Cleaning equipment typically has multiple loads. During operation, the current from each load flows through the main circuit. To enable simultaneous connection and disconnection of the power supply circuits for multiple loads, a switch is installed on the main circuit. This switch needs to carry a sufficiently high current; in other words, the switch's certified current must be sufficiently high. For example, the switch's certified current must be greater than the sum of the currents required by the multiple loads to ensure normal operation. However, using a switch with a high certified current increases the manufacturing cost of the cleaning equipment. Utility Model Content

[0004] In view of this, the present disclosure provides a cleaning device, aiming to solve the problem of high manufacturing cost of cleaning equipment.

[0005] On the one hand, the cleaning device provided by the present disclosure includes a housing, a heater, a liquid delivery system, a motor, a power supply and a switch. The housing has an inlet and an outlet. The heater is used to heat the cleaning liquid. The liquid delivery system is used to deliver steam or heated cleaning liquid to the surface to be cleaned located at the inlet. The motor is used to generate suction force to form an air flow channel from the inlet to the outlet, and to recover contaminated cleaning liquid from the surface to be cleaned located at the inlet. The power supply is used to supply power to the heater and the motor. The switch is used to connect or disconnect the power supply circuit for supplying power to the heater and the motor. The switch includes a first pair of contacts and a second pair of contacts respectively connected to the power supply circuit of the heater and the power supply circuit of the motor. In a first state of the switch, the first pair of contacts and the second pair of contacts are simultaneously connected so that the power supply circuit of the heater and the power supply circuit of the motor are both connected. In a second state of the switch, the first pair of contacts and the second pair of contacts are simultaneously disconnected so that the power supply circuit of the heater and the power supply circuit of the motor are both disconnected. The current when the power supply circuit of the heater is connected and the current when the power supply circuit of the motor is connected are both less than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current when the power supply circuit of the heater is connected and the current when the power supply circuit of the motor is connected are both greater than the rated current of the first pair of contacts and the second pair of contacts.

[0006] Because the first and second pairs of contacts are connected to the heater and motor power circuits, respectively, each pair of contacts only needs to handle the current of a single load. This helps reduce the required certified current for the switch, thereby lowering the manufacturing cost of the cleaning equipment. This also helps improve switch heat dissipation and extend its service life.

[0007] As a possible implementation, the cleaning device further includes a control circuit board connected to the power supply circuit of the heater and the power supply circuit of the motor.

[0008] As a possible implementation method, the control circuit board is provided with a first phase line connection terminal and a second phase line connection terminal, one of the first pair of contacts is electrically connected to the phase line terminal of the power supply, the other of the first pair of contacts is electrically connected to the first phase line connection terminal, and the heater is electrically connected to the second phase line connection terminal and the neutral line terminal of the power supply respectively.

[0009] As a possible implementation, the control circuit board is provided with a first neutral line connection terminal and a second neutral line connection terminal, one of the second pair of contacts is electrically connected to the phase line terminal of the power supply, the other of the second pair of contacts is electrically connected to the motor, the motor is electrically connected to the first neutral line connection terminal, and the second neutral line connection terminal is electrically connected to the neutral line terminal of the power supply.

[0010] As a possible implementation manner, the liquid delivery system includes a water pump electrically connected to the control circuit board.

[0011] As a possible implementation, the control circuit board is provided with a DC positive connection terminal and a DC negative connection terminal, and the power supply circuit of the water pump is electrically connected to the DC positive connection terminal and the DC negative connection terminal.

[0012] As a possible implementation, the cleaning device further includes a control panel electrically connected to the control circuit board, and the control panel is used for a user to input control instructions.

[0013] As a possible implementation, the cleaning device further includes a handle, the handle is configured to be grasped by a hand to lift the cleaning device, and the switch is provided on the handle.

[0014] The handle is usually located on the cleaning device so that it can be easily grasped by the user. Therefore, the user can more conveniently operate the switch located on the handle.

[0015] As a possible implementation manner, the switch is located at one end of the handle in the length direction.

[0016] In this way, the operator will not cover the switch when holding the handle. On the one hand, this helps to avoid accidental triggering of the switch. On the other hand, it allows the operator to operate the switch more conveniently while holding the handle.

[0017] On the other hand, the cleaning device provided by the present disclosure includes a shell, a synchronous socket, a motor, a power supply and a switch. The shell has an inlet and an outlet. The synchronous socket is arranged on the shell for pluggable connection with an external tool. The motor is arranged in the shell for generating a suction force to form an airflow channel from the inlet and the outlet. The power supply is used to supply power to the synchronous socket and the motor. The switch is used to connect or disconnect the power supply circuit of the synchronous socket and the motor. The switch includes a first pair of contacts and a second pair of contacts respectively connected to the power supply circuit of the synchronous socket and the power supply circuit of the motor. In the first state, the switch simultaneously conducts the first pair of contacts and the second pair of contacts so that the power supply circuit of the synchronous socket and the power supply circuit of the motor are both connected. In the second state, the switch disconnects the first pair of contacts and the second pair of contacts at the same time, so that the power supply circuit of the synchronous socket and the power supply circuit of the motor are both disconnected, and the current when the power supply circuit of the synchronous socket is connected and the current when the power supply circuit of the motor is connected are both less than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current when the power supply circuit of the synchronous socket is connected and the current when the power supply circuit of the motor is connected are both greater than the rated current of the first pair of contacts and the second pair of contacts.

[0018] Because the first and second pairs of contacts are connected to the synchronous socket's power supply circuit and the motor's power supply circuit, respectively, each pair of contacts only needs to handle the current of a single load. This helps reduce the required certification current for the switch, thereby lowering the manufacturing cost of the cleaning equipment. This also helps improve switch heat dissipation and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] It should be understood that the following drawings only depict certain embodiments of the present disclosure and should not be considered limiting of the scope.

[0020] It should be understood that the same or similar reference numerals are used in the drawings to identify the same or similar elements.

[0021] It should be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0022] Figure 1 This is a schematic structural diagram of the cleaning device provided in Example 1 of the present disclosure.

[0023] Figure 2 for Figure 1 Schematic cross-sectional view of the cleaning device in.

[0024] Figure 3 for Figure 1 Schematic diagram of the circuit principle of the cleaning equipment.

[0025] Figure 4 for Figure 1 Schematic diagram of the circuit principle of the cleaning equipment.

[0026] Figure 5 This is a schematic structural diagram of the cleaning equipment provided in Example 2 of the present disclosure.

[0027] Figure 6 for Figure 5 Schematic diagram of the circuit principle of the cleaning equipment. DETAILED DESCRIPTION

[0028] The use of cleaning equipment not only reduces the labor cost of cleaning work, but also improves the efficiency of cleaning work. However, in order to meet usage requirements, cleaning equipment needs to be equipped with multiple loads. This requires the switches in the main circuit to have a sufficiently large certified current to drive the operation of the entire machine. For example, if the power supply circuit of one load needs to carry a current of 8A, and the power supply circuit of another load needs to carry a current of 4A, then the switches in the main circuit need to carry at least a current of 12A. This requires that the certified current of the switches in the main circuit be greater than 12A. Switches with a larger certified current are more expensive, and using such switches will increase the manufacturing cost of the cleaning equipment.

[0029] In light of this, embodiments of the present disclosure provide a cleaning device. Compared to traditional cleaning devices, the cleaning device provided herein utilizes a switch with multiple contact pairs. These multiple contact pairs are connected to the power supply circuits of multiple loads, ensuring that each contact pair only needs to carry the current required by its respective load. This allows multiple loads to be started or shut down simultaneously without relying on switches with high certified currents, which helps reduce manufacturing costs and extend service life.

[0030] For ease of understanding, the cleaning device provided by the embodiments of the present disclosure is illustrated below in conjunction with specific embodiments and accompanying drawings. It should be understood that the present disclosure can be implemented in a variety of ways and should not be construed as being limited to the embodiments described herein. The embodiments described herein are only for a more thorough and clear understanding of the present disclosure.

[0031] <Example 1>

[0032] Embodiment 1 of the present disclosure provides a cleaning device 100. The cleaning device 100 can be a device that uses a fluid for cleaning. For example, the cleaning device 100 can be a floor cleaning machine or a carpet cleaning machine. For ease of understanding, the overall structure of the cleaning device 100 is first illustrated below. It should be understood that the overall structure of the cleaning device 100 should not be limited to the following description. For example, one or more of the elements described below can be omitted or replaced, and the layout relationship between them can be replaced.

[0033] refer to Figure 1The cleaning device 100 may include a housing 11, a supply container 12, and a recovery container 13. The supply container 12 and the recovery container 13 may be mounted on the housing 11, and may be located on opposite sides of the housing 11. The cleaning device 100 may apply cleaning fluid from the supply container 12 to a surface or object to be cleaned, and draw dirty fluid into the recovery container 13 to achieve the cleaning purpose. It will be appreciated that the relative positions of the supply container 12 and the recovery container 13 are interchangeable.

[0034] refer to Figure 1 and Figure 2 , the cleaning device 100 may further include a tube 16 and a cleaning tool 17. One end of the tube 16 may be connected to the housing 11, and the other end may be connected to the cleaning tool 17. The cleaning tool 17 may be constructed to be handheld by the user. For example, the cleaning tool 17 may include a brush 171, an outlet 172, and an inlet 173. The user may hold the cleaning tool 17, apply the cleaning fluid in the supply container 12 to the floor to be cleaned through the outlet 172, remove the dirt on the floor by rotating the brush 171, and pick up the dirt and dirty liquid into the recovery container 13 through the inlet 173. The cleaning device 100 may further include a power supply 18, which has a power cord of a certain length to power the internal power supply module of the cleaning device 100. For example, it powers a heater and a motor. Of course, the cleaning device may also include a battery to get rid of the constraints of the power supply.

[0035] Continue to refer Figure 1 and Figure 2 The interior of the cleaning device 100 may include a heater 30. The heater 30 may be located at the upper portion of the cleaning device 100 and is used to heat the cleaning liquid. A liquid delivery system 40 and a delivery pipeline 42 may be provided at both ends of the heater 30. The liquid delivery system 40 may be located between the heater 30 and the pipe 16 and is used to deliver steam or heated cleaning liquid to the floor to be cleaned at the inlet 173. The delivery pipeline 42 may be used to deliver the cleaning liquid in the supply container 12 to the heater 30.

[0036] Continue to refer Figure 2 The cleaning device 100 may further include a motor 70 and an impeller 72. The motor 70 and the impeller 72 may be located below the heater 30. The impeller 72 may be located below the motor 70 and rotate at high speed driven by the motor 70 to generate suction force, forming an air flow channel from the inlet 173 to the outlet 172, and is used to recover contaminated cleaning liquid from the surface to be cleaned at the inlet 173.

[0037] Back to Figure 1The cleaning device 10 may further include a handle 14 and a switch 15. The handle 14 is configured to be held by a hand to lift the cleaning device 100. The switch 15 may be provided on the handle. Considering that the handle 14 is usually located at a position on the cleaning device 100 that is easy for the user to hold. Therefore, by providing the switch 15 on the handle 14, the user will be able to operate the switch 15 more conveniently. In particular, the switch 15 may be located at one end in the length direction of the handle 14, for simultaneously connecting or disconnecting the power supply circuit of the power supply 18 to the heater 30 and the motor 70. In this way, the operator will not cover the switch 15 when holding the handle 14. On the one hand, this helps to avoid accidentally triggering the switch 15. On the other hand, this allows the operator to operate the switch 15 more conveniently while holding the handle 14.

[0038] refer to Figure 2 and Figure 3 The switch 15 may include a first pair of contacts 51 and a second pair of contacts 52, respectively connected to the power supply circuit S1 of the heater 30 and the power supply circuit S2 of the motor 70. The switch 15 can be operated to switch between a first state and a second state. In the first state, the switch 15 simultaneously connects the first pair of contacts 51 and the second pair of contacts 52, thereby connecting the power supply circuit S1 of the heater 30 and the power supply circuit S2 of the motor 70. In the second state, the switch 15 simultaneously disconnects the first pair of contacts 51 and the second pair of contacts 52, thereby disconnecting the power supply circuit S1 of the heater 30 and the power supply circuit S2 of the motor 70. The current I1 when the power supply circuit S1 of the heater 30 is connected and the current I2 when the power supply circuit S2 of the motor 70 is connected are both less than the rated currents of the first pair of contacts 51 and the second pair of contacts 52. In other words, the current I1 when the power supply circuit S1 of the heater 30 is connected is less than the rated currents of the first pair of contacts 51 and the second pair of contacts 52, and the current I2 when the power supply circuit S2 of the motor 70 is connected is less than the rated currents of the first pair of contacts 51 and the second pair of contacts 52. In addition, the power supply circuit S1 of the heater 30 is connected. The sum of the current I1 when the power supply circuit S1 of the heater 30 is connected and the current I2 when the power supply circuit S2 of the motor 70 is connected is greater than the rated current of the first pair of contacts 51 and the second pair of contacts 52. In other words, the sum of the current I1 when the power supply circuit S1 of the heater 30 is connected and the current I2 when the power supply circuit S2 of the motor 70 is connected is greater than the rated current of the first pair of contacts 51, and the sum of the current I1 when the power supply circuit S1 of the heater 30 is connected and the current I2 when the power supply circuit S2 of the motor 70 is connected is greater than the rated current of the second pair of contacts 52.

[0039] Because the first pair of contacts 51 and the second pair of contacts 52 are connected to the power supply circuits of the heater 30 and the motor 70, respectively, each pair of contacts only needs to withstand the current of a single load. This helps reduce the required certification current of the switch 15, thereby reducing the manufacturing cost of the cleaning device 100. This also helps improve the heat generation of the switch 15 and extend its service life.

[0040] like Figure 4 As shown, in order to accurately control the simultaneous on and off of the first pair of contacts 51 and the second pair of contacts 52, the cleaning device 100 further includes a control circuit board 90 connected to the power supply circuit S1 of the heater 30 and the power supply circuit S2 of the motor 70. The control circuit board 90 has two phase connection terminals L1 and L2 and two neutral connection terminals N1 and N2, so that the heater 30 and the motor 70 are arranged in parallel on two branches.

[0041] Specifically, see Figure 4 The control circuit board 90 is provided with a first phase line connection terminal L1 and a second phase line connection terminal L2, one of the first pair of contacts 51 is electrically connected to the phase line terminal L of the power supply 18, the other of the first pair of contacts 51 is electrically connected to the first phase line connection terminal L1, and the heater 30 is electrically connected to the second phase line connection terminal L2 and the neutral line terminal N of the power supply respectively.

[0042] Specifically, see Figure 4 The control circuit board 90 is provided with a first neutral line connection terminal N1 and a second neutral line connection terminal N2, one of the second pair of contacts 52 is electrically connected to the phase line terminal L of the power supply 18, the other of the second pair of contacts 52 is electrically connected to the motor 70, the motor 70 is electrically connected to the first neutral line connection terminal N1, and the second neutral line connection terminal N2 is electrically connected to the neutral line terminal N of the power supply.

[0043] Thus, the power supply circuit for heater 30 is as follows: the current output from the phase terminal L of the power supply enters the first branch S1 and is split into I1. Current I1 passes through the first pair of contacts 51, the first phase connection terminal L1, the second phase connection terminal L2, the first branch S1, and the heater 30 before returning to the neutral terminal N of the power supply. The power supply circuit for motor 70 is as follows: the current I output from the phase terminal L of the power supply enters the second branch S2 and is split into I2. Current I2 passes through the second pair of contacts 52, the second branch S2, and the motor 70 before flowing into the first neutral terminal N1. Current I2 then passes through the second neutral terminal N2 before returning to the neutral terminal N of the power supply.

[0044] It should be noted that the relative positions of the electrical appliances and the control circuit board can be flexibly set for each branch. For example, the control circuit board can be located upstream or downstream of the heater and motor, or the relative positions of the control circuit board and the electrical appliances can be different for different branches.

[0045] refer to Figure 2 and Figure 4 The liquid delivery system 40 includes a water pump 60 electrically connected to the control circuit board 90. The water pump 60 serves as a power source for fluid supply, and can apply the cleaning liquid in the supply container to the surface of the object to be cleaned, and then the brush 171 rotates to remove dirt on the floor.

[0046] Water pumps in cleaning equipment are often powered by direct current (DC). To achieve efficient liquid cleaning, the control circuit board 90 is equipped with a rectifier module to convert AC mains power into the DC power required by the water pump 60. The rectifier module has a DC positive terminal D+ and a DC negative terminal D-. The power supply circuit of the water pump 60 is electrically connected to the DC positive terminal D+ and the DC negative terminal D-.

[0047] The operation of the cleaning equipment is as follows: the heater 30 heats the cleaning liquid in the supply container 12, and the water pump 60 transports the heated cleaning liquid to the surface to be cleaned at the inlet through the liquid delivery system 40. Then, the brush 171 rotates to remove the dirt on the floor, and the motor 70 drives the impeller to rotate at high speed, generating suction force to suck the dirt into the recovery container 13.

[0048] Continue to refer Figure 4 The cleaning device 100 may further include a control panel 19 electrically connected to the control circuit board, and the control panel 19 is used by the user to input control commands. The control panel 19 can be implemented in many ways, such as buttons, touch panels, etc., as long as it can control the circuit board to perform corresponding operations according to the control commands.

[0049] <Example 2>

[0050] A second embodiment of the present disclosure provides a cleaning device 200. The cleaning device 200 may be a vacuum cleaner. To facilitate understanding, the overall structure of the cleaning device 200 is first described below by way of example. It should be understood that the overall structure of the cleaning device 200 is not limited to the following description. For example, one or more of the elements described below may be omitted or replaced, and the layout relationships between them may be altered.

[0051] refer to Figure 5, the cleaning device 200 may include a housing 211, a recovery container and running wheels 212. The recovery container may be located in the housing 211 for accommodating the recyclables to be sucked. The cleaning device 200 may suck dirt such as dust and debris into the recovery container by suction to achieve the purpose of cleaning. The running wheels 212 are mounted on the housing 211, and the cleaning device 200 moves on the ground via the running wheels 212. The housing 211 may also have an inlet 213 and an outlet (not shown). The inlet 213 is used to connect a suction pipe to suck dirt such as dust and debris into the recovery container, and the outlet is used to discharge the filtered air.

[0052] The cleaning device 200 may further include a motor 270 and an impeller 272. The motor 270 drives the impeller 272 to rotate at high speed, generating a suction force to suck dirt, debris, and other contaminants into a recovery container through a suction pipe.

[0053] The cleaning device 200 may also include a switch 220, a synchronous socket 230 and a power supply. The switch 220 and the synchronous socket 230 are arranged on the housing 211. The switch 220 is used to connect or disconnect the power supply circuit that supplies power to the synchronous socket 230 and the motor 270. For example, the switch 220 can be a knob. The synchronous socket 230 is used to be pluggable and connected to an external tool, for example, it can be connected to an electric saw, an electric drill, etc., which is not specifically limited here. The power supply can have a connecting line, which is connected to an external socket for supplying power to the synchronous socket 230 and the motor 270. The cleaning device can also be provided with a battery inside to power it.

[0054] As an example, see Figure 6 The switch 220 includes a first pair of contacts 221 and a second pair of contacts 222, respectively connected to the power supply circuit S4 of the synchronous socket 230 and the power supply circuit S3 of the motor 270. The switch 220 can be operated to switch between a first state and a second state. In the first state, the switch 220 simultaneously connects the first pair of contacts 221 and the second pair of contacts 222, thereby connecting the power supply circuit S4 of the synchronous socket 230 and the power supply circuit S3 of the motor 270. In the second state, the switch 220 simultaneously disconnects the first pair of contacts 221 and the second pair of contacts 222, thereby disconnecting the power supply circuit S4 of the synchronous socket 230 and the power supply circuit S3 of the motor 270. The current I4 when the power supply circuit S4 of the synchronous socket 230 is connected and the current I3 when the power supply circuit S3 of the motor 270 is connected are both less than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current I4 when the power supply circuit S4 of the synchronous socket 230 is connected and the current I3 when the power supply circuit S3 of the motor 270 is connected are both greater than the rated current of the first pair of contacts and the second pair of contacts.

[0055] Because the first pair of contacts 221 and the second pair of contacts 222 are connected to the power supply circuits of the synchronous socket 230 and the motor 270, respectively, each pair of contacts only needs to withstand the current of a single load. This helps reduce the required authentication current of the switch 220, thereby reducing the manufacturing cost of the cleaning device 200. This also helps improve the heat generation of the switch 220, extending its service life.

[0056] It should be noted that the reference Figure 6 The first pair of contacts 221 may include contacts 2 and 3, and the second pair of contacts 222 may include contacts 5 and 4. When contacts 2 and 5 are electrically connected to contacts 3 and 4, respectively, switch 220 is in a first state. At this point, the internal voltage of synchronization socket 230 is at the mains voltage. When an external power tool is electrically connected to synchronization socket 230, motor 270 receives control signals from the external power tool and drives the vacuum cleaner. When contacts 2 and 5 are not electrically connected to any contacts, switch 220 is in a second state, i.e., neutral, and the vacuum cleaner is in standby mode.

[0057] In addition, switch 220 may also include contact 1 and contact 6. When contact 2 and contact 5 are electrically connected to contact 1 and contact 6, respectively, switch 220 is in a third state. In this state, motor 270 can receive control signals to drive the vacuum cleaner, and the voltage inside synchronous socket 230 is zero. This helps prevent hazards to personnel from being exposed to high voltage inside synchronous socket 230.

[0058] Continue to refer Figure 6 The interior of the cleaning device 200 may include a single-chip microcomputer 291, a step-down module 292, an external tool acquisition module 293, a switch signal 294 and a current acquisition module 295. The single-chip microcomputer 291 can be connected to the motor 270 to send a drive signal to drive the motor 270 to work. The step-down module 292 is used to power the single-chip microcomputer 291. The external tool acquisition module 293 is connected to the current acquisition module 295 to input the collected current, voltage and other signals of the external power tool into the single-chip microcomputer 291 for subsequent processing. The current acquisition module 295 can use a sampling resistor to detect whether the synchronous socket 230 is connected to an external power tool. The switch signal module 294 is used for gear position identification. For example, the gear position of the switch 220 can be judged based on the potential signal of the contact 6.

[0059] It is understood that in the present disclosure, directional descriptions such as "upper", "lower", "inner", "outer" and the like are relative rather than absolute. When the lawn mower provided by the present disclosure is placed in the posture and position shown in the accompanying drawings, these directional words may be applicable.

[0060] It should be understood that although the terms "first" or "second" etc. may be used in the present disclosure to describe various elements (such as a first pair of contacts and a second pair of contacts), these elements are not defined by these terms, and these terms are only used to distinguish one element from another.

[0061] The basic principles of the present disclosure have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this disclosure are merely illustrative and not restrictive, and should not be construed as necessarily possessed by each embodiment of the present disclosure. Furthermore, the specific details disclosed above are provided for illustrative purposes and to facilitate understanding, rather than as limitations. These details do not limit the present disclosure to necessarily being implemented using these specific details.

[0062] The above description has been provided for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0063] The components and devices involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components and devices may be connected, arranged, or configured in any manner.

[0064] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A cleaning device comprising: a housing having an inlet and an outlet; A heater, for heating the cleaning liquid; a liquid delivery system for delivering steam or heated cleaning liquid to the surface to be cleaned located at the inlet; a motor for generating a suction force to form an air flow channel from the inlet to the outlet and for recovering contaminated cleaning liquid from the surface to be cleaned located at the inlet; a power supply for supplying power to the heater and the motor; A switch for connecting or disconnecting a power supply circuit for supplying power to the heater and the motor; It is characterized in that: the switch includes a first pair of contacts and a second pair of contacts respectively connected to the power supply circuit of the heater and the power supply circuit of the motor; in a first state, the switch simultaneously turns on the first pair of contacts and the second pair of contacts, so that the power supply circuit of the heater and the power supply circuit of the motor are both connected, and in a second state, the switch simultaneously turns off the first pair of contacts and the second pair of contacts, so that the power supply circuit of the heater and the power supply circuit of the motor are both disconnected, wherein the current when the power supply circuit of the heater is connected and the current when the power supply circuit of the motor is connected are both less than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current when the power supply circuit of the heater is connected and the current when the power supply circuit of the motor is connected are both greater than the rated current of the first pair of contacts and the second pair of contacts.

2. The cleaning device according to claim 1, characterized in that The invention also includes a control circuit board connected to the power supply circuit of the heater and the power supply circuit of the motor.

3. The cleaning device according to claim 2, characterized in that The control circuit board is provided with a first phase line connection terminal and a second phase line connection terminal, one of the first pair of contacts is electrically connected to the phase line terminal of the power supply, the other of the first pair of contacts is electrically connected to the first phase line connection terminal, and the heater is electrically connected to the second phase line connection terminal and the neutral line terminal of the power supply respectively.

4. The cleaning device according to claim 2, characterized in that The control circuit board is provided with a first neutral line connection terminal and a second neutral line connection terminal, one of the second pair of contacts is electrically connected to the phase line terminal of the power supply, the other of the second pair of contacts is electrically connected to the motor, the motor is electrically connected to the first neutral line connection terminal, and the second neutral line connection terminal is electrically connected to the neutral line terminal of the power supply.

5. The cleaning device according to claim 2, characterized in that The liquid delivery system includes a water pump electrically connected to the control circuit board.

6. The cleaning device according to claim 5, characterized in that The control circuit board is provided with a DC positive connection terminal and a DC negative connection terminal, and the power supply circuit of the water pump is electrically connected to the DC positive connection terminal and the DC negative connection terminal.

7. The cleaning device according to claim 2, characterized in that It also includes a control panel electrically connected to the control circuit board, and the control panel is used for a user to input control instructions.

8. The cleaning device according to any one of claims 1 to 7, characterized in that The cleaning device further comprises a handle configured to be grasped by a hand to lift the cleaning device, and the switch is disposed on the handle.

9. The cleaning device according to claim 8, characterized in that The switch is located at one end of the handle in a length direction.

10. A cleaning device comprising: a housing having an inlet and an outlet; A synchronization socket is provided on the housing and is used for pluggable connection with an external tool; a motor, disposed in the housing, for generating a suction force to form an air flow channel from the inlet and the outlet; A power supply, used to supply power to the synchronous socket and the motor; A switch for connecting or disconnecting a power supply circuit for supplying power to the synchronous socket and the motor; It is characterized in that: the switch includes a first pair of contacts and a second pair of contacts respectively connected to the power supply circuit of the synchronous socket and the power supply circuit of the motor; in a first state, the switch simultaneously turns on the first pair of contacts and the second pair of contacts so that the power supply circuit of the synchronous socket and the power supply circuit of the motor are both connected; in a second state, the switch simultaneously turns off the first pair of contacts and the second pair of contacts so that the power supply circuit of the synchronous socket and the power supply circuit of the motor are both disconnected, wherein the current when the power supply circuit of the synchronous socket is connected and the current when the power supply circuit of the motor is connected are both less than the rated current of the first pair of contacts and the second pair of contacts, and the sum of the current when the power supply circuit of the synchronous socket is connected and the current when the power supply circuit of the motor is connected are both greater than the rated current of the first pair of contacts and the second pair of contacts.

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