A base station and cleaning system

Abstract

The present disclosure provides a base station and a cleaning system. It relates to the field of base station noise reduction technology. The base station comprises a base station body, a dust collection box, a fan, a dust collection inlet pipe, a dust collection outlet pipe and a noise reduction assembly. The dust collection box is arranged on the base station body. The dust collection inlet pipe is arranged on the base station body. The dust collection outlet pipe is arranged on the base station body and communicates with the dust collection box. The noise reduction assembly comprises a microphone, a loudspeaker and a noise reduction driving assembly. The microphone is arranged on the dust collection inlet pipe and picks up noise to generate a microphone signal. The loudspeaker is arranged on the dust collection inlet pipe and is driven by a loudspeaker signal. The noise reduction driving assembly is respectively connected in communication with the microphone and the loudspeaker. The noise reduction driving assembly receives the microphone signal and generates the loudspeaker signal to drive the loudspeaker to emit sound waves for canceling noise. By arranging the noise reduction assembly, the problem of noise transmission to the outside of the base station to cause noise pollution to the user is effectively improved, and the quietness of the use environment is beneficial.

Description

Technical Field

[0001] This disclosure relates to the field of base station noise reduction technology, and in particular to a base station and a cleaning system. Background Technology

[0002] The cleaning equipment is used to clean the surface to be cleaned. During the cleaning process, dust and other dirt are collected in the dust box of the cleaning equipment. After cleaning is completed, the cleaning equipment needs to be moved to the base station, where the base station will suck the dirt from the dust box of the cleaning equipment into the dust collection box of the base station to empty the dust box and facilitate the next cleaning.

[0003] When a base station pumps out dirt from a cleaning device, it generates a lot of noise, causing noise pollution and disturbing people in their own or their neighbors' homes. Utility Model Content

[0004] This disclosure provides a base station and a cleaning system to improve the technical problem of excessive noise generated when the base station is sucking up dust and other dirt from the cleaning equipment.

[0005] This disclosure provides a base station, which includes a base station body, a dust collection box, a fan, a dust collection inlet duct, a dust collection outlet duct, and a noise reduction component. The dust collection box is disposed on the base station body. The fan is disposed on the base station body and provides negative pressure to the dust collection box. The dust collection inlet duct is disposed on the base station body and communicates with the dust collection box. The noise reduction component includes a microphone, a speaker, and a noise reduction driving component. The microphone is disposed on the dust collection inlet duct and picks up noise to generate a microphone signal; the speaker is disposed on the dust collection inlet duct and is driven by a speaker signal; the noise reduction driving component is communicatively connected to both the microphone and the speaker, receiving the microphone signal and generating a speaker signal to drive the speaker to emit sound waves to cancel out noise.

[0006] Airflow within a duct generates noise, which in turn causes noise within the base station, disturbing residents and neighbors. This disclosed base station incorporates a noise reduction component, including a microphone, a speaker, and a noise reduction driver. The microphone collects noise and generates a microphone signal. Upon receiving the microphone signal, the noise reduction driver inverts the phase of the noise signal to generate a speaker signal. This speaker signal drives the speaker to emit an anti-phase sound wave from the noise. The anti-phase sound wave and the noise superimpose in space, canceling each other out. By incorporating the noise reduction component, the problem of noise pollution caused to users outside the base station is effectively mitigated, contributing to a quieter operating environment.

[0007] The microphone and speaker disclosed herein are both mounted on the dust collection air inlet duct, which is connected to the cleaning equipment. When airflow passes through, the dust collection air inlet duct generates low-frequency noise. Noise reduction components can effectively reduce this low-frequency noise, thus reducing noise pollution. Compared to placing the microphone and speaker in other areas of the base station, such as near the fan, where the fan generates high-frequency noise, which has significant attenuation characteristics and is noticeably reduced after being blocked by the base station itself, noise reduction needs to target low-frequency noise that travels further. Existing active noise cancellation technologies cannot reduce high-frequency noise. Therefore, placing the microphone and speaker near the fan fails to reduce high-frequency noise and is also ineffective in reducing low-frequency noise due to the distance from the source, resulting in very poor noise reduction. Placing the microphone and speaker in other locations within the base station will also result in poor noise reduction due to the distance from the low-frequency noise source, affecting the overall noise reduction effect.

[0008] In an exemplary embodiment of this disclosure, a mounting hole is provided on the dust collection air inlet pipe, and the mounting hole penetrates the wall of the dust collection air inlet pipe; a microphone and a speaker are mounted at the mounting hole.

[0009] By setting up mounting holes, the microphone can pick up noise closer to the sound source inside the dust collection air inlet duct, and the anti-phase sound waves emitted by the speaker are also closer to the noise source, thus effectively canceling out the noise, reducing noise propagated from other locations, and improving the noise reduction effect.

[0010] In an exemplary embodiment of this disclosure, a filter element is provided at the mounting hole, and the filter element is disposed on the side of the microphone and speaker near the inner wall of the dust collection air inlet duct.

[0011] By incorporating a filter, dust and other contaminants carried by the airflow are filtered out, reducing the amount of dust entering the mounting holes. This improves the problem of dust adhering to the microphone and speaker through the mounting holes, ensuring the accuracy of microphone pickup and thus guaranteeing noise reduction.

[0012] In an exemplary embodiment of this disclosure, the filter element matches the inner wall of the dust collection air inlet pipe at the mounting hole, and the filter element is flush with the inner wall of the dust collection air inlet pipe.

[0013] The filter element is arc-shaped to match the inner wall of the dust collection inlet duct. The filter element is flush with the inner wall of the dust collection inlet duct, thereby reducing the impact of the filter element on the airflow inside the dust collection inlet duct. This allows the airflow to stably carry dust and other dirt into the dust collection box, improving the situation of dust adhering to the filter element, increasing the durability of the filter element, reducing the amount of dust entering the mounting hole through the filter element, improving the cleanliness of the microphone and speaker, and ensuring the accuracy of sound pickup and noise reduction.

[0014] In an exemplary embodiment of this disclosure, the mounting hole includes a first mounting hole and a plurality of second mounting holes. The first mounting hole penetrates the outer wall of the dust collection air inlet pipe; the plurality of second mounting holes penetrate the inner wall of the dust collection air inlet pipe, and the second mounting holes communicate with the first mounting hole; wherein the projection of the first mounting hole along the radial direction of the dust collection air inlet pipe covers the projection of the second mounting holes along the radial direction of the dust collection air inlet pipe.

[0015] The first mounting hole facilitates the installation of the microphone and speaker, reducing the length of the microphone and speaker extending beyond the dust collection air inlet duct wall, thereby reducing the risk of interference between the microphone and speaker and other components. The second mounting hole ensures that noise can be accurately picked up by the microphone and that sound waves emitted by the speaker can be transmitted into the dust collection air inlet duct; on the other hand, the second mounting hole reduces the exposed area of ​​the first mounting hole, thereby reducing the amount of dust and dirt entering the first mounting hole and improving the durability of the microphone and speaker.

[0016] In an exemplary embodiment of this disclosure, the dust collection air inlet duct includes an inlet end configured to match the air outlet of the cleaning device; a microphone and a speaker are disposed near the inlet end of the dust collection air inlet duct.

[0017] The inlet end of the dust collection air inlet duct connects to the air outlet of the cleaning equipment. Due to unavoidable reasons such as sealing and assembly errors, the noise at the inlet end is relatively loud. Placing the microphone and speaker close to the inlet end, closer to the sound source, allows for more accurate noise pickup and more precise phase cancellation of the sound waves emitted by the speaker, resulting in better noise reduction. Placing the microphone and speaker close to the sound source also reduces the power required to generate anti-phase sound waves, thus reducing energy consumption.

[0018] In an exemplary embodiment of this disclosure, the base station includes a receiving cavity configured to receive a cleaning device; the inlet end of the dust collection air inlet duct is located in the receiving cavity.

[0019] The inlet end of the dust collection air inlet duct is located inside the receiving cavity, facilitating connection between the inlet end and the air outlet of the cleaning equipment. This allows for the efficient extraction of dust and other contaminants from the cleaning equipment into the dust collection box. The receiving cavity has a semi-open structure to facilitate the entry and exit of the cleaning equipment, which in turn makes it easier for sound from the receiving cavity to propagate outwards.

[0020] In an exemplary embodiment of this disclosure, a plurality of perforations are provided on the dust collection air inlet duct, the perforations penetrating the wall of the dust collection air inlet duct. A microphone and a speaker are installed at the perforations.

[0021] By incorporating perforations, the microphone can pick up noise closer to the sound source within the dust collection air inlet duct, and the inverted sound waves emitted by the speaker are also closer to the noise source, effectively canceling out the noise and reducing noise propagation from other locations, thus improving noise reduction. The perforations also reduce airflow into the microphone and speaker, thereby reducing dust and other contaminants adhering to them.

[0022] In an exemplary embodiment of this disclosure, the base station includes a receiving cavity and a dust collection exhaust pipe. The receiving cavity is configured to receive a cleaning device. The dust collection exhaust pipe is disposed in the base station body and communicates with the dust collection box. The dust collection exhaust pipe includes an outlet end, which is configured to match the air inlet of the cleaning device. The outlet end is disposed in the receiving cavity, and sound insulation cotton is disposed near the outlet end of the dust collection exhaust pipe.

[0023] The outlet end of the dust collection duct is matched with the air inlet of the cleaning equipment. When the fan is working, a negative pressure is generated inside the dust collection box. The gas in the dust collection box of the cleaning equipment flows sequentially through the air outlet, inlet end, and dust collection duct of the cleaning equipment into the dust collection box. After the dust and other dirt are filtered by the filtration system of the dust collection box, the gas flows back into the dust collection box of the cleaning equipment through the dust collection duct, outlet end, and air inlet of the cleaning equipment to form a loop, thus completing the cleaning of the dust collection box of the cleaning equipment.

[0024] By installing sound-absorbing cotton at the outlet, noise leakage at the outlet can be reduced, lowering the perceived noise level and ensuring noise reduction effectiveness. The gas at the outlet is clean gas filtered by the dust collection box; therefore, the sound-absorbing cotton at the outlet will not become ineffective due to excessive dust absorption, ensuring the lifespan and effectiveness of the sound-absorbing cotton.

[0025] A second aspect of this disclosure provides a cleaning system, which includes cleaning equipment and a base station according to any of the above. The base station is provided with a receiving cavity that houses the cleaning equipment.

[0026] After cleaning the surface, the cleaning equipment moves into the receiving cavity, where the dustbin of the cleaning equipment is emptied via the base station. By installing noise reduction components in the base station, the noise generated during the dustbin cleaning process can be effectively reduced, minimizing the impact on users.

[0027] In combination with existing technologies, the beneficial effects of this disclosure are as follows:

[0028] The base station disclosed herein is equipped with a noise reduction component, which includes a microphone, a speaker, and a noise reduction driving component. The microphone collects noise and generates a microphone signal. Upon receiving the microphone signal, the noise reduction driving component inverts the phase of the noise signal to generate a speaker signal. This speaker signal drives the speaker to emit an anti-phase sound wave from the noise. The anti-phase sound wave and the noise are superimposed in space, achieving cancellation. By incorporating the noise reduction component, the problem of noise pollution to users caused by noise transmission outside the base station is effectively mitigated, contributing to a quieter user environment.

[0029] If the microphone and speaker are located in other areas of the base station, for example, near a fan, the noise generated by the fan is high-frequency noise. High-frequency noise has the characteristic of significant attenuation, and it will be significantly reduced after being blocked by the base station itself. Existing active noise cancellation technology cannot reduce high-frequency noise. Therefore, if the microphone and speaker are located at the fan, they cannot reduce high-frequency noise, and because they are far from the source of low-frequency noise, they cannot effectively reduce low-frequency noise either, resulting in very poor noise reduction. The microphone and speaker of this disclosure are both located on the dust collection air inlet duct, which is connected to the cleaning equipment. When airflow passes through, the dust collection air inlet duct generates low-frequency noise. The noise reduction component can effectively reduce the low-frequency noise generated by the dust collection air inlet duct, thereby reducing noise pollution. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0031] In the attached diagram:

[0032] Figure 1 This is a schematic diagram of a base station provided according to an embodiment of the present disclosure;

[0033] Figure 2 This is a cross-sectional view of a base station provided in one embodiment of the present disclosure;

[0034] Figure 3 This is a schematic diagram of the dust collection air inlet pipe structure provided in one embodiment of the present disclosure;

[0035] Figure 4 This is a schematic diagram of the dust collection air inlet pipe provided in one embodiment of the present disclosure from another angle.

[0036] The attached figures are labeled as follows:

[0037] 100. Base station body; 110. Receiving cavity;

[0038] 200. Dust collection box;

[0039] 300. Fan;

[0040] 400. Dust collection air inlet duct; 420. Filter element; 430. Inlet end; 440. Sealing element;

[0041] 500. Dust collection exhaust duct; 510. Outlet end;

[0042] 600. Noise reduction component; 610. Microphone; 620. Speaker; 630. Noise reduction driver component. Detailed Implementation

[0043] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. This disclosure can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0044] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this disclosure. The drawings only show components related to this disclosure and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0045] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of the present disclosure. However, it will be apparent to those skilled in the art that embodiments of the present disclosure may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present disclosure.

[0046] It should be noted that the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of this disclosure. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of this disclosure.

[0047] After cleaning the surface, the cleaning equipment needs to be moved to the base station, where the base station cleans the dust box of the equipment. During the cleaning process, a negative pressure is created by a fan, which then creates airflow circulation in the airflow duct. The air flowing in the duct generates noise, which can easily cause noise pollution and disturb users.

[0048] Please see Figures 1 to 4 In view of this, the present disclosure provides a base station and a cleaning device. By setting a noise reduction component 600 in the base station, the noise reduction component 600 emits an antiphase sound wave of noise. The antiphase sound wave and the noise are superimposed in space to cancel each other out, thereby achieving noise reduction, improving the problem of noise pollution, which is conducive to a quiet operating environment and reducing the impact on users.

[0049] Please see Figures 1 to 4 The first aspect of this disclosure provides a base station, which includes a base station body 100, a dust collection box 200, a fan 300, a dust collection air inlet duct 400, and a noise reduction component 600.

[0050] The base station body 100 includes at least a housing for mounting some functional components of the base station to realize its functions. For example, circuit components are installed inside the housing to charge cleaning equipment. In some embodiments, a cleaning assembly may also be installed inside the housing to clean cleaning components used for wet or dry cleaning.

[0051] Please see Figure 2 The dust collection box 200 is disposed on the base station body 100. The dust collection box 200 contains a filter assembly, which filters the gas passing through the dust collection box 200, so that dust and other dirt are retained in the dust collection box 200, and clean gas flows out from the dust collection box 200. The filter assembly may include components such as filter cotton to filter dust, so as to achieve the filtration of dust and other dirt.

[0052] In some embodiments, the dust collection box 200 is detachably installed on the base station body 100 to facilitate users to empty and clean the dust and other dirt collected in the dust collection box 200, thus facilitating the use of the dust collection box 200.

[0053] Please see Figure 2 The fan 300 is installed on the base station body 100. The fan 300 is used to provide negative pressure to the dust collection box 200. The negative pressure environment inside the dust collection box 200 can form a suction airflow, thereby sucking the dust and dirt collected in the dust box of the cleaning equipment into the dust collection box 200. Then, after being filtered by the filter component, clean gas is formed and returned to the dust box of the cleaning equipment to form an airflow circulation loop.

[0054] Please see Figure 2 A dust collection air inlet duct 400 is installed on the base station body 100 and is connected to the dust collection box 200. The dust collection air inlet duct 400 connects the cleaning equipment and the dust collection box 200 to form an airflow channel between the cleaning equipment and the dust collection box 200, so that the airflow carrying dust and other dirt flowing out of the cleaning equipment can flow into the dust collection box 200.

[0055] Please see Figure 3The noise reduction component 600 includes a microphone 610, a speaker 620, and a noise reduction drive component 630. The microphone 610 is disposed in the dust collection air inlet duct 400 and picks up noise to generate a microphone signal. The speaker 620 is disposed in the dust collection air inlet duct 400 and is driven by the speaker 620 signal. The noise reduction drive component 630 is communicatively connected to both the microphone 610 and the speaker 620. The noise reduction drive component 630 receives the microphone signal and generates a speaker 620 signal to drive the speaker 620 to emit sound waves to cancel out noise.

[0056] Airflow within a duct generates noise, which in turn causes noise within the base station, disturbing residents and neighbors. This disclosure discloses a noise reduction component 600 within the base station. The noise reduction component 600 includes a microphone 610, a speaker 620, and a noise reduction drive component 630. The microphone 610 collects noise and generates a microphone signal. When noise reaches the microphone 610, it causes the microphone diaphragm to vibrate, enabling the microphone 610 to pick up the noise and generate a microphone signal. Upon receiving the microphone signal, the noise reduction drive component 630 inverts the phase of the noise signal to generate a speaker signal for the speaker 620. The speaker signal drives the speaker 620 to emit an antiphase sound wave of the noise. The antiphase sound wave and the noise superimpose in space, canceling each other out. By incorporating the noise reduction component 600, the problem of noise pollution caused to users outside the base station is effectively mitigated, contributing to a quieter operating environment.

[0057] The microphone 610 and speaker 620 of this disclosure are both mounted on the dust collection air inlet duct 400, which is connected to the cleaning equipment. When airflow passes through, the dust collection air inlet duct 400 generates low-frequency noise. The noise reduction component 600 can effectively reduce the low-frequency noise generated by the dust collection air inlet duct 400, thus reducing noise pollution. Compared to placing the microphone 610 and speaker 620 in other areas of the base station, such as near the fan 300, the noise generated by the fan 300 is high-frequency noise. High-frequency noise has the characteristic of significant attenuation, and high-frequency noise will be significantly reduced after being blocked by the base station body 100. Therefore, noise reduction needs to target low-frequency noise that travels further. Existing active noise cancellation technology cannot reduce high-frequency noise. Therefore, if the microphone 610 and speaker 620 are placed at the fan 300, they cannot reduce high-frequency noise, and because they are far from the source of low-frequency noise, they cannot effectively reduce low-frequency noise either, resulting in very poor noise reduction. If the microphone 610 and speaker 620 are located in other positions of the base station, the noise reduction effect will be poor due to their distance from the source of low-frequency noise, thus affecting the noise reduction effect.

[0058] In some embodiments, the noise reduction driver component 630 is communicatively connected to the microphone 610. The communication connection can be either wired or wireless. Preferably, the noise reduction driver component 630 and the microphone 610 are wired, which results in higher communication efficiency, lower cost, and smaller size of the noise reduction driver component 630 and the microphone 610, making them easier to install.

[0059] Similarly, the noise reduction drive component 630 and the speaker 620 can be connected via wired communication or wireless communication.

[0060] The noise reduction driver component 630 can be integrated with the microphone 610, or with the speaker 620. The noise reduction driver component 630, microphone 610 and speaker 620 can also be integrated into one unit.

[0061] Of course, as an option, the noise reduction driver component 630 can also be configured separately.

[0062] In some embodiments, the microphone 610 and the speaker 620 are integrated. The smaller the distance between the microphone 610 and the speaker 620, the smaller the distance between the location where the microphone 610 collects noise and the location where the speaker 620 emits anti-phase sound waves. This allows the anti-phase sound waves emitted by the speaker 620 to better cancel out the noise, improving the noise reduction effect. The integrated design of the microphone 610 and speaker 620 also facilitates their installation, reduces installation steps, and improves assembly efficiency.

[0063] Of course, as an option, the microphone 610 and speaker 620 can also be set up separately.

[0064] In one embodiment, a mounting hole is provided on the dust collection air inlet duct 400, and the mounting hole penetrates the wall of the dust collection air inlet duct 400. The microphone 610 and the speaker 620 are mounted at the mounting hole.

[0065] By providing mounting holes, the microphone 610 can pick up noise closer to the sound source within the dust collection inlet duct 400, and the anti-phase sound waves emitted by the speaker 620 are also closer to the noise source. When the anti-phase sound wave source is close to the noise source, the phase change caused by the path difference during sound wave propagation is smaller, and the stability of destructive interference is higher, thus forming a noise reduction effect over a wider area and ensuring the overall noise reduction effect.

[0066] For example, one mounting hole can be provided, with the microphone 610 and speaker 620 mounted in the same mounting hole. Alternatively, two mounting holes can be provided, with the microphone 610 and speaker 620 mounted in two separate mounting holes.

[0067] In some embodiments, the microphone 610 and the speaker 620 extend at least partially into the mounting hole to minimize the proximity of the noise signal picked up by the microphone 610 and the antiphase sound wave emitted by the speaker 620 to the noise source, thereby improving the noise reduction effect.

[0068] Of course, as some alternatives, the microphone 610 and speaker 620 can also be completely mounted on the outer wall of the dust collection air inlet duct 400 to achieve noise reduction by picking up noise signals in the mounting hole and emitting anti-phase sound waves into the mounting hole.

[0069] The microphone 610 and the dust collection air inlet duct 400 can be installed by adhesive bonding, screw bonding, or snap-fit ​​bonding.

[0070] The speaker 620 and the dust collection air inlet duct 400 can be installed by adhesive bonding, screw bonding, or snap-fit ​​bonding.

[0071] Please see Figure 4 In one embodiment, a filter element 420 is provided at the mounting hole, and the filter element 420 is provided on the side of the microphone 610 and the speaker 620 near the inner wall of the dust collection air inlet pipe 400.

[0072] By setting up a filter element 420, dust and other dirt carried by the airflow are filtered out, reducing the amount of dust entering the mounting hole. This improves the problem of dust adhering to the microphone 610 and speaker 620 through the mounting hole, ensuring the accuracy of the microphone 610's sound pickup and thus ensuring the noise reduction effect.

[0073] Filter element 420 can be filter cotton, filter screen, or other filter elements that have the effect of filtering dust.

[0074] The filter element 420 can be installed by adhesive bonding or snap-fit ​​connection to achieve relative fixation between the filter element 420 and the dust collection air inlet pipe 400.

[0075] In one embodiment, the filter element 420 matches the inner wall of the dust collection air inlet pipe 400 at the mounting hole, and the filter element 420 is flush with the inner wall of the dust collection air inlet pipe 400.

[0076] The filter element 420 is an arc shape that matches the inner wall of the dust collection air inlet pipe 400 at the mounting hole. The filter element 420 is flush with the inner wall of the dust collection air inlet pipe 400, thereby reducing the influence of the filter element 420 on the airflow inside the dust collection air inlet pipe 400. This allows the airflow to stably carry dust and other dirt into the dust collection box 200, improving the situation of dust adhering to the filter element 420, increasing the durability of the filter element 420, reducing the amount of dust entering the mounting hole through the filter element 420, improving the cleanliness of the microphone 610 and speaker 620, and ensuring the accuracy of sound pickup and noise reduction.

[0077] In one embodiment, the mounting hole includes a first mounting hole and a plurality of second mounting holes.

[0078] The first mounting hole extends outward through the outer wall of the dust collection inlet duct 400. Several second mounting holes extend inward through the inner wall of the dust collection inlet duct 400. The side of the second mounting holes facing the outer wall of the dust collection inlet duct 400 connects with the side of the first mounting holes facing the inner wall of the dust collection inlet duct 400. The projection of the mounting holes along the radial direction of the dust collection inlet duct 400 overlaps the projection of the second mounting holes along the radial direction of the dust collection inlet duct 400, forming a layout of one large first mounting hole and multiple small second mounting holes.

[0079] The first mounting hole facilitates the installation of the microphone 610 and speaker 620, reducing the length of the microphone 610 and speaker 620 extending beyond the wall of the dust collection air inlet duct 400, thereby reducing the risk of interference between the microphone 610 and speaker 620 and other components. The second mounting hole ensures that noise can be accurately picked up by the microphone 610 and that sound waves emitted by the speaker 620 can be transmitted into the dust collection air inlet duct 400. Furthermore, the second mounting hole reduces the exposed area of ​​the first mounting hole, thereby reducing the amount of dust and other contaminants entering the first mounting hole and improving the durability of the microphone 610 and speaker 620.

[0080] In some embodiments, the filter 420 is installed at the end of the first mounting hole near the second mounting hole to filter dust and reduce dust accumulation on the microphone 610 and speaker 620.

[0081] In other embodiments, the filter 420 is installed in the second mounting hole to filter dust, thereby reducing the amount of dust entering the first mounting hole through the second mounting hole and improving the situation of dust accumulation on the microphone 610 and the speaker 620.

[0082] Please see Figure 1 and Figure 4 In one embodiment, the dust collection inlet duct 400 includes an inlet end 430, which is used to match the air outlet of the cleaning equipment. A microphone 610 and a speaker 620 are positioned near the inlet end 430 of the dust collection inlet duct 400. Since the inlet end 430 of the dust collection inlet duct 400 is connected to the air outlet of the cleaning equipment, the sound at the inlet end 430 is relatively loud due to unavoidable reasons such as sealing and assembly errors. Positioning the microphone 610 and speaker 620 close to the inlet end 430 allows them to be closer to the sound source, resulting in more accurate noise pickup and more precise phase cancellation of the sound waves emitted by the speaker 620, thus achieving a better noise reduction effect. Positioning the microphone 610 and speaker 620 close to the sound source also reduces the power required to generate anti-phase sound waves, reducing energy consumption.

[0083] In one embodiment, the base station includes a receiving cavity 110 for accommodating cleaning equipment. When the cleaning equipment has completed cleaning or is not performing any tasks, it is moved into the receiving cavity 110 for temporary storage. The base station then charges and cleans the cleaning equipment to ensure the subsequent cleaning work can be carried out.

[0084] The inlet end 430 of the dust collection air inlet pipe 400 is located in the receiving cavity 110. The inlet end 430 of the dust collection air inlet pipe 400 is located in the receiving cavity 110 to facilitate the connection between the inlet end 430 and the air outlet of the cleaning equipment, so as to facilitate the suction of dust and dirt in the cleaning equipment into the dust collection box 200 through the dust collection air inlet pipe 400.

[0085] In one embodiment, the microphone 610 and the speaker 620 are located in the receiving cavity 110. The receiving cavity 110 has a semi-open structure to facilitate the entry and exit of cleaning equipment, which makes it easier for sound from the receiving cavity 110 to be transmitted outward. By placing the microphone 610 and the speaker 620 in the receiving cavity 110, the noise within the receiving cavity 110 is reduced, thereby preventing noise from being transmitted outward through the semi-open receiving cavity 110, effectively improving the noise reduction effect.

[0086] Please see Figure 4 In one embodiment, a sealing element 440 is provided at the inlet end 430, and the sealing element 440 is arranged circumferentially along the inlet end 430.

[0087] The seal 440 can be a soft seal such as silicone or rubber. The seal 440 is used to connect the inlet end 430 and the air outlet of the cleaning equipment. By setting the seal 440, the sealing between the inlet end 430 and the air outlet is improved, airflow leakage is reduced, noise is shielded, and the perceived noise level is reduced.

[0088] The seal 440 is arranged circumferentially along the inlet end 430, which can circumferentially seal the inlet end 430 and the air outlet of the cleaning equipment, thereby reducing the gas leakage at the connection between the inlet end 430 and the air outlet. The reduction of gas outflow can reduce the occurrence of noise on the one hand, and improve the noise shielding effect by improving the sealing performance on the other hand.

[0089] Please see Figure 1 and Figure 2In one embodiment, the base station includes a receiving cavity 110 and a dust collection exhaust duct 500. The receiving cavity 110 is used to accommodate cleaning equipment. The dust collection exhaust duct 500 is disposed in the base station body 100 and is connected to a dust collection box 200. The dust collection exhaust duct 500 connects the cleaning equipment and the dust collection box 200 to form an airflow channel between the cleaning equipment and the dust collection box 200, facilitating the return of clean airflow filtered by the dust collection box 200 to the cleaning equipment, thereby forming an airflow circulation loop. Through the dust collection exhaust duct 500 and the dust collection inlet duct 400, a blowing and suction effect is formed in the dust box of the cleaning equipment, which helps to increase the airflow at the dust box and facilitates the discharge of dust and other dirt from the dust box.

[0090] The dust collection exhaust duct 500 includes an outlet end 510, which is configured to match the air inlet of the cleaning equipment. The outlet end 510 is located in the receiving cavity 110, and sound insulation cotton is provided near the outlet end 510 of the dust collection exhaust duct 500.

[0091] The outlet end 510 of the dust collection exhaust duct 500 is matched with the air inlet of the cleaning equipment. When the fan 300 is working, a negative pressure is generated in the dust collection box 200. The gas in the dust box of the cleaning equipment flows sequentially through the air outlet, inlet end 430, and dust collection exhaust duct 500 into the dust collection box 200. After the dust and other dirt are filtered by the filtration system of the dust collection box 200, the gas flows back into the dust box of the cleaning equipment through the dust collection exhaust duct 500, outlet end 510, and air inlet of the cleaning equipment to form a loop, thus completing the cleaning of the dust box of the cleaning equipment.

[0092] By installing sound insulation cotton at the outlet 510, noise leakage at the outlet 510 can be reduced, the perceived noise from the outside can be lowered, and the noise reduction effect can be guaranteed. The gas at the outlet 510 is clean gas filtered by the dust collection box 200. Installing sound insulation cotton at the outlet 510 will not cause it to fail due to excessive dust absorption, thus ensuring the service life and effectiveness of the sound insulation cotton.

[0093] In some embodiments, a seal 440 is provided at the outlet end 510 of the dust collection duct 500, and the seal 440 is arranged circumferentially along the outlet end 510.

[0094] The seal 440 can be a soft seal such as silicone or rubber. The seal 440 is used to connect the outlet end 510 and the air inlet of the cleaning equipment. By setting the seal 440, the sealing between the outlet end 510 and the air inlet is improved, airflow leakage is reduced, noise is shielded, and the perceived noise level is reduced.

[0095] The seal 440 is arranged circumferentially along the outlet end 510, which can circumferentially seal the outlet end 510 and the air inlet of the cleaning equipment, thereby reducing the gas leakage from the connection between the inlet end 430 and the air outlet. The reduction of gas outflow can reduce the occurrence of noise on the one hand, and improve the noise shielding effect by improving the sealing performance on the other hand.

[0096] In other embodiments, the dust collection air inlet duct 400 is provided with multiple perforations that penetrate the wall of the dust collection air inlet duct 400. The microphone 610 and the speaker 620 are mounted at the perforations.

[0097] By incorporating perforations, the microphone 610 can pick up noise closer to the sound source within the dust collection inlet duct 400, and the anti-phase sound waves emitted by the speaker 620 are also closer to the noise source, thus effectively canceling out the noise, reducing noise propagation from other locations, and improving the noise reduction effect. The perforations also reduce airflow into the microphone 610 and speaker 620, thereby reducing the adhesion of dust and other contaminants to these components.

[0098] The base station disclosed herein may also include other components or parts to achieve different functions. For example, it may include a sewage discharge component, a cleaning component, etc. Please refer to existing base stations; this application will not elaborate on these details.

[0099] A second aspect of this disclosure provides a cleaning system, which includes cleaning equipment and a base station according to any of the above. The base station is provided with a receiving cavity 110, which houses the cleaning equipment.

[0100] After cleaning the surface to be cleaned, the cleaning equipment moves to the receiving cavity 110, where the dust box of the cleaning equipment is cleaned via the base station. During the cleaning process, airflow and interaction with the airflow pipes generate noise, which can interfere with users. The cleaning system disclosed herein incorporates a noise reduction component 600 within the base station. The noise reduction component 600 includes a microphone 610, a speaker 620, and a noise reduction drive component 630. The microphone 610 collects noise and generates a microphone signal. Upon receiving the microphone signal, the noise reduction drive component 630 inverts the phase of the noise signal to generate a speaker 620 signal. The speaker 620 signal drives the speaker 620 to emit an antiphase sound wave of the noise. The antiphase sound wave and the noise are superimposed in space, achieving cancellation. By incorporating the noise reduction component 600, the problem of noise pollution to users outside the base station is effectively mitigated, contributing to a quieter user environment.

[0101] The base station and cleaning system disclosed herein utilize a noise reduction component 600 to cancel out noise by superimposing anti-phase sound waves and noise in space. By incorporating the noise reduction component 600, the problem of noise pollution to users caused by noise transmission outside the base station is effectively mitigated, contributing to a quieter operating environment. The microphone 610 and speaker 620 are both mounted on the dust collection air inlet duct 400, which is connected to the cleaning equipment. When airflow passes through, the dust collection air inlet duct 400 generates low-frequency noise. The noise reduction component 600 effectively reduces this low-frequency noise, thus minimizing noise pollution. Therefore, this disclosure effectively overcomes some practical problems in the prior art, thus possessing high utilization value and practical significance.

[0102] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the claims of this disclosure.

Claims

1. A base station, characterized in that, include: Base station body; A dust collection box is installed on the base station body; A fan is installed on the base station body, and the fan is used to provide negative pressure to the dust collection box; A dust collection air inlet pipe is installed on the base station body, and the dust collection air inlet pipe is connected to the dust collection box; Noise reduction component, the noise reduction component includes: A microphone is installed in the dust collection air inlet duct, and the microphone picks up noise to generate a microphone signal; A loudspeaker is disposed in the dust collection air inlet duct, and the loudspeaker is used to be driven by a loudspeaker signal; A noise reduction driving component is communicatively connected to the microphone and the speaker respectively. The noise reduction driving component receives the microphone signal and generates a speaker signal to drive the speaker to emit sound waves to cancel out the noise.

2. The base station according to claim 1, characterized in that, The dust collection air inlet pipe is provided with an installation hole, which penetrates the wall of the dust collection air inlet pipe; The microphone and the speaker are mounted at the mounting hole.

3. The base station according to claim 2, characterized in that, A filter element is provided at the mounting hole, and the filter element is located on the side of the microphone and the speaker near the inner wall of the dust collection air inlet pipe.

4. The base station according to claim 3, characterized in that, The filter element matches the inner wall of the dust collection air inlet pipe at the mounting hole, and the filter element is flush with the inner wall of the dust collection air inlet pipe.

5. The base station according to claim 2, characterized in that, The mounting holes include: The first mounting hole penetrates the outer wall of the dust collection air inlet pipe; Several second mounting holes penetrate the inner wall of the dust collection air inlet pipe, and the second mounting holes are connected to the first mounting holes; Wherein, the projection of the first mounting hole along the radial direction of the dust collection air inlet pipe covers the projection of the second mounting hole along the radial direction of the dust collection air inlet pipe.

6. The base station according to claim 1, characterized in that, The dust collection air inlet pipe includes an inlet end, which is configured to match the air outlet of the cleaning equipment; The microphone and the speaker are located near the inlet end of the dust collection air inlet duct.

7. The base station according to claim 6, characterized in that, The base station includes a receiving cavity configured to accommodate cleaning equipment; The inlet end of the dust collection air inlet pipe is located in the receiving cavity.

8. The base station according to claim 1, characterized in that, The dust collection air inlet pipe is provided with multiple hollow holes, which penetrate the wall of the dust collection air inlet pipe; The microphone and the speaker are mounted at the cutout.

9. The base station according to claim 1, characterized in that, The base station includes: A receiving cavity configured to accommodate cleaning equipment; A dust collection exhaust duct is installed on the base station body and is connected to the dust collection box; the dust collection exhaust duct includes an outlet end, which is configured to match the air inlet of the cleaning equipment. The outlet end is located in the receiving cavity, and the dust collection air outlet pipe is provided with sound insulation cotton near the outlet end.

10. A cleaning system, characterized in that, include: Cleaning equipment; The base station according to any one of claims 1 to 9, wherein the base station is provided with a receiving cavity, the receiving cavity accommodating the cleaning equipment.

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