A housing for a fan of a cleaning device, a cleaning device and a cleaning system

Abstract

The utility model discloses a kind of for the cover of fan of cleaning equipment, cleaning equipment and cleaning system, cover includes: cover body, cover body has accommodating space, accommodating space is configured as installing fan, at least partial position of cover body is in abutment with fan, and the hardness of at least partial of cover body is 10 degrees to 91 degrees.Due to cover body and fan direct contact, and the hardness of at least partial of cover body is smaller, it can be achieved using cover body directly to fan vibration isolation, reduce the noise generated by fan, and it does not need to set up rubber parts between cover body and fan and other damping parts, thus, the use of parts can be saved, reduce the cost of cleaning equipment of the cover of application.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning equipment, and in particular to a cleaning system and cleaning equipment, and even more particularly to a housing for a fan used in cleaning equipment. Background Technology

[0002] With the continuous development of technology, cleaning equipment is widely used in household cleaning because it saves more time and effort.

[0003] Cleaning equipment typically consists of the equipment body and the cleaning base. The equipment body usually contains a suction fan, which uses the suction generated by the fan to clean dust and impurities from the floor.

[0004] However, the fan generates significant noise during the suction process, especially the single-frequency noise caused by the fan's rotation frequency, which seriously affects the user experience.

[0005] Therefore, how to isolate the noise generated by the fan and simplify the structure is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a housing for a fan in cleaning equipment, which isolates noise generated by the fan and simplifies the structure. Furthermore, the present invention also provides a cleaning device and a cleaning system having the aforementioned housing for a fan in cleaning equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A housing for a fan in a cleaning device includes: a housing having a receiving space configured to mount a fan, at least a portion of the housing abutting the fan, and at least a portion of the housing having a Shore hardness of 10 to 91.

[0009] Preferably, in the aforementioned fan housing for cleaning equipment, at least a portion of the housing has a Shore hardness of 10 to 30 degrees.

[0010] Preferably, in the above-mentioned fan housing for cleaning equipment, at least a portion of the housing has a wall thickness of 3mm-10mm.

[0011] Preferably, in the above-described fan housing for cleaning equipment, at least a portion of the housing has a density of 15 kg / m³. 2 -50 kg / m 2 .

[0012] Preferably, in the above-described fan housing for cleaning equipment, at least a portion of the housing is made of at least one of polyurethane, polyurea, silicone, and / or thermoplastic elastomer.

[0013] Preferably, in the aforementioned fan housing for cleaning equipment, at least a portion of the housing is made of polyurethane.

[0014] Preferably, in the above-described fan housing for cleaning equipment, the housing includes a first housing and a second housing, the first housing and the second housing being able to be fastened together and enclosing the receiving space; at least one of the first housing and the second housing is configured to abut against the fan.

[0015] Preferably, in the aforementioned fan housing for cleaning equipment, both the first housing and the second housing have a Shore hardness of 10 to 91 degrees.

[0016] Preferably, in the above-described housing of the fan for cleaning equipment, the first housing is configured to abut against a first end of the fan in the axial direction; and the second housing is configured to abut against a second end of the fan in the axial direction.

[0017] Preferably, in the above-described fan housing for cleaning equipment, the inner wall of the first housing has a first stepped structure, which is configured to abut against the stepped structure at the first end of the fan.

[0018] Preferably, in the above-mentioned fan housing for cleaning equipment, the first step structure includes: a first boss and a second boss; the distance from the inner wall of the first boss to the axis of the first housing is less than the distance from the inner wall of the second boss to the axis of the first housing; the side of the first boss near the second boss abuts against the axial end face of the fan, and the inner wall of the second boss abuts against the circumferential side of the first end of the fan.

[0019] Preferably, in the above-described fan housing for cleaning equipment, the inner wall of the second housing has a second stepped structure, the second stepped structure being configured to cooperate with the stepped structure at the second end of the fan, and the fan abutting against the second stepped structure.

[0020] Preferably, in the above-mentioned fan housing for cleaning equipment, the second step structure includes: a fifth protrusion and a sixth protrusion; the distance from the inner wall of the fifth protrusion to the axis of the second housing is less than the distance from the inner wall of the sixth protrusion to the axis of the second housing; the side of the fifth protrusion near the sixth protrusion abuts against the axial end face of the fan, and the inner wall of the sixth protrusion abuts against the circumferential side of the second end of the fan.

[0021] Preferably, in the above-mentioned fan housing for cleaning equipment, the first housing has a first mounting step structure on the side near the second housing, and the second housing has a second mounting step structure on the side near the first housing; the first mounting step structure and the second mounting step structure overlap and cooperate.

[0022] Preferably, in the above-described fan housing for cleaning equipment, at least one of the first housing and the second housing has an air outlet communicating with the accommodating space and an air inlet communicating with the fan inlet of the fan.

[0023] Preferably, in the above-described fan housing for cleaning equipment, the second housing has the air inlet on the side away from the first housing, and the side wall of the second housing has the air outlet.

[0024] Preferably, in the aforementioned fan housing for cleaning equipment, the second housing is integrally formed with a first sealing rib on the outer circumference of the air outlet.

[0025] Preferably, in the above-mentioned fan housing for cleaning equipment, the second housing is integrally formed with a second sealing rib on the outer circumference of the air inlet.

[0026] Preferably, in the above-mentioned fan housing for cleaning equipment, at least one of the first housing and / or the second housing is a one-piece molded part or a spliced ​​connecting part.

[0027] A cleaning device includes a fan, a housing, and a cover, wherein the fan is installed inside the cover, and the cover is installed inside the housing; the cover is a cover for a fan of any of the preceding claims for a cleaning device.

[0028] Preferably, in the above-described cleaning equipment, at least a portion of the cover body is interference-fitted with the housing.

[0029] A cleaning system includes a cleaning device and a base station, the base station being configured to house the cleaning device and charge the cleaning device as described above.

[0030] This utility model discloses a cover for a fan in cleaning equipment, including a cover body with a space for accommodating the fan, and at least a portion of the cover body abutting against the fan, wherein the hardness of at least a portion of the cover body is between 10 and 91 degrees. The cover body disclosed in this embodiment is in direct contact with the fan, and the low hardness of at least a portion of the cover body allows for direct vibration isolation of the fan, reducing noise generated by the fan. Furthermore, it eliminates the need for vibration damping components such as rubber parts between the cover body and the fan, thus saving on the use of parts and reducing the cost of cleaning equipment using this cover. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the fan housing for cleaning equipment disclosed in an embodiment of the present utility model;

[0033] Figure 2 This is a front sectional view of the casing of a fan for cleaning equipment disclosed in an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the first cover of the fan housing for cleaning equipment disclosed in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the second cover of the fan housing for cleaning equipment disclosed in an embodiment of the present utility model;

[0036] Figure 5 This is a schematic diagram of the second cover of the fan housing for cleaning equipment disclosed in an embodiment of the present utility model from another direction.

[0037] Figure 6 This is a front view of the fan disclosed in an embodiment of the present utility model;

[0038] Figure 7 This is a partial structural schematic diagram of the floor scrubber disclosed in an embodiment of the present utility model;

[0039] Figure 8 This is a partial exploded view of the main body of the floor scrubber disclosed in an embodiment of the present utility model;

[0040] Figure 9 This is a front sectional view of the main body of the floor scrubber disclosed in an embodiment of the present utility model;

[0041] Figure 10 This is a schematic diagram of the cleaning system disclosed in an embodiment of the present utility model;

[0042] Figure 11 This is a comparison chart of the acoustic power data of a single fan disclosed in an embodiment of this utility model;

[0043] Figure 12 This is a comparison chart of the maximum amplitude of the fan rotation frequency disclosed in the embodiments of this utility model. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0046] With the continuous development of technology, cleaning equipment is widely used in household cleaning because it saves more time and effort.

[0047] Cleaning equipment typically consists of the equipment body and the cleaning base. The equipment body usually contains a suction fan, which uses the suction generated by the fan to clean dust and impurities from the floor.

[0048] However, the fan vibrates significantly during the suction process, and this vibration generates considerable noise, especially the single-frequency noise caused by the fan's rotation frequency, which severely impacts the user experience.

[0049] Based on the above-mentioned technical problems, this application discloses a cover for a fan used in cleaning equipment. The cover for the fan used in cleaning equipment includes a cover body with a receiving space configured to install the fan 2 of the cleaning equipment. It can be understood that the cover body covers the outside of the fan 2.

[0050] At least a portion of the enclosure abuts against the fan 2, and at least a portion of the enclosure is made of an elastic damping material with a hardness of 10 to 91 degrees. Optionally, at least the portion of the enclosure that abuts against the fan 2 is made of an elastic damping material. It should be noted that "abutting" in this article refers to contact. The Shore hardness in this article is measured using a Shore AO hardness tester.

[0051] The cover disclosed in this application is in direct contact with the fan 2, and the hardness of at least part of the cover is between 10 and 91 degrees. This allows the cover to directly isolate the fan 2 from vibration, reducing the noise generated by the fan. Furthermore, it eliminates the need for vibration damping components such as rubber parts between the cover and the fan 2, thus saving on the use of parts and reducing the cost of cleaning equipment using this cover.

[0052] In some embodiments, at least a portion of the enclosure has a Shore hardness of 10 to 30 degrees. Optionally, the Shore hardness of the enclosure at least at the point of contact with the fan 2 is 10 to 30 degrees. By reducing the hardness of the enclosure, the vibration isolation effect of the enclosure on the fan 2 can be improved. Those skilled in the art can select the hardness of the enclosure according to different needs, and all choices are within the protection range.

[0053] In optional embodiments, the Shore hardness of the cover is 10, 15, or 30, or even 91.

[0054] Optionally, the wall thickness of at least a portion of the cover is 3mm-10mm, and optionally, the wall thickness of the cover at least at the point of contact with the fan 2 is 3mm-10mm. Reducing the wall thickness of the cover can improve its elasticity, thereby improving its vibration damping effect. It should be noted that the thickness of the cover in this application includes, but is not limited to, the above-mentioned thickness range, which includes endpoint values, and the above-mentioned range is only an exemplary thickness range and is not intended to be a specific limitation.

[0055] The density of at least a portion of the cover disclosed in this application is 15 kg / m³. 2 -1000 kg / m 2 The density of the cover at least where it contacts the fan 2 is 15 kg / m³. 2 -1000 kg / m 2 Preferably, the density of the cover at least at the point of contact with the fan 2 is 15 kg / m³. 2 -50 kg / m 2 The sealing range of the aforementioned cover includes the endpoint values.

[0056] It should be noted that increasing the density of the enclosure can improve the vibration reduction effect. Specifically, the greater the density of the enclosure, the stronger its ability to absorb vibration, and the better its vibration reduction effect.

[0057] In some embodiments, at least a portion of the cover is made of at least one of polyurethane, polyurea, silicone, and / or thermoplastic elastomers. Optionally, the material of the cover at least at the point of contact with the fan 2 includes at least one of polyurethane, polyurea, silicone, and / or thermoplastic elastomers. Preferably, the material of the cover at least at the point of contact with the fan 2 is polyurethane.

[0058] It should be noted that the material at the contact point between the cover and the fan 2 can be polyurethane, but it can also be polyurea, silicone, or thermoplastic elastomer. When the material at the contact point between the cover and the fan 2 is a combination of at least two materials, such as a combination of polyurethane and polyurea, the ratio of the two materials can be set according to different needs. It should be noted that polyurethane and polyurea will not react with each other. When the cover is made of other material combinations, the ratio of these materials is also specifically defined, and they will not react with each other.

[0059] Optionally, the cover is injection molded.

[0060] At least a portion of the material of the cover includes polyurethane foam, and the content of polyurethane foam can be set according to different needs. When the polyurethane foam is mixed with other materials to form the cover structure, the polyurethane foam does not react with other materials.

[0061] Optionally, the material at the junction of the cover and the fan 2 can be polyurethane foam, which can achieve better sound insulation, better isolate the noise generated by the operation of the fan 2 from the outside, and reduce noise.

[0062] The following combination Figure 1 and Figure 2 The present application describes one specific structure of the cover disclosed in the embodiments. For the connection methods of other structures of the cover, please refer to the following description.

[0063] like Figure 1 and Figure 2 As shown, the cover includes: a first cover 11 and a second cover 12.

[0064] The first cover 11 and the second cover 12 are connected, and the second cover 12 has an air inlet 122 and an air outlet 121.

[0065] After the first cover 11 and the second cover 12 are connected, a space for accommodating the fan 2 is formed inside both.

[0066] The first cover 11 and the second cover 12 are arranged along the axial direction of the fan 2, and the axes of the first cover 11 and the second cover 12 coincide. After the first cover 11 and the second cover 12 are connected axially, the fan 2 can be confined within the accommodating space along the axial direction. In other embodiments, the first cover 11 and the second cover 12 may also be distributed on both sides of the axis of the fan 2, as long as the structure can enclose the accommodating space, it is within the protection scope.

[0067] It should be noted that the first cover 11 and the second cover 12 in the embodiments of this application are both elastic damping components.

[0068] The first cover 11 and the second cover 12 are both elastic damping components, so that the side walls of the accommodating space formed by the first cover 11 and the second cover 12 have a damping effect. It can be understood that the cover 1 of this application is a damping structure as a whole.

[0069] In some embodiments, the first cover 11 or the second cover 12 is an elastic damping element.

[0070] It should be noted that the fan casing of the cleaning equipment in this embodiment is a vibration-damping structure, which effectively increases the vibration-damping area of ​​the casing 1. The increased vibration-damping area allows vibration energy to be dispersed and absorbed over a larger area, thereby reducing the vibration amplitude transmitted to the structure or equipment and improving the vibration-damping effect of the casing 1. After the fan 2 is wrapped with the casing 1, the casing 1 provides a larger area of ​​isolation for the vibration generated during the operation of the fan 2, preventing the vibration of the fan 2 from being transmitted to the plastic structure of the cleaning equipment, thus effectively reducing the noise generated by the vibration of the fan 2 in the cleaning equipment.

[0071] Optionally, the first cover 11 and the second cover 12 may include, but are not limited to, polyurethane (PUR) foam material. Utilizing the flexibility of the polyurethane foam material, the hardness of the first cover 11 and the second cover 12 can be further reduced. For example, the Shore hardness of the first cover 11 and the second cover 12 can be set to 10 to 90 degrees; optionally, the Shore hardness of the first cover 11 and the second cover 12 may be selected to be around 20 degrees.

[0072] In addition, since polyurethane foam has a lower sound radiation efficiency than plastic, the noise generated by the vibration of the cover 1 after being excited by the fan 2 can be greatly reduced.

[0073] In some embodiments, the first cover 11 and the second cover 12 of this application are both made of polyurethane foam material, and the thickness of the first cover 11 and the second cover 12 is about 3mm-10mm, so as to achieve better sound insulation effect, better isolate the noise generated by the operation of the fan 2 from the outside, and reduce noise.

[0074] In other alternative embodiments, the first cover 11 and the second cover 12 may also be made of polyurea, silicone, thermoplastic polyurethane elastomer (TPU), thermoplastic elastomer (TPE), thermoplastic polyester elastomer (TPEE), or fluororubber. The first cover 11 and the second cover 12 may be made of the same material or different materials.

[0075] The above content describes the materials of the first cover 11 and the second cover 12. The following section, in conjunction with... Figures 3 to 5 The specific structures of the first cover 11 and the second cover 12 are described below. It should be noted that the shapes of the first cover 11 and the second cover 12 are adapted to the fan 2; therefore, the shapes of the first cover 11 and the second cover 12 are defined in conjunction with… Figure 6 The structure of the wind turbine 2 disclosed in the report.

[0076] like Figure 6As shown, the fan 2 disclosed in this application embodiment includes a first shaft end 21 and a second shaft end 22, wherein the first shaft end 21 includes a first segment 211 and a second segment 212, and the second shaft end 22 includes a third segment 221 and a fourth segment 222.

[0077] The first segment 211 and the second segment 212 are arranged along the axis of the fan 2, and the distance from the outer peripheral surface of the first segment 211 to the axis of the fan 2 is less than the distance from the outer peripheral surface of the second segment 212 to the axis of the fan 2, so that the first segment 211 and the second segment 212 form a first end step structure.

[0078] The third segment 221 and the fourth segment 222 are arranged along the axis of the fan 2, and the first segment 211, the second segment 212, the fourth segment 222 and the third segment 221 are arranged sequentially along the axis. The distance from the outer peripheral surface of the third segment 221 to the axis of the fan 2 is less than the distance from the outer peripheral surface of the fourth segment 222 to the axis of the fan 2, so that the third segment 221 and the fourth segment 222 form a second end step structure.

[0079] Optionally, the first shaft end 21 and the second shaft end 22 may be, but are not limited to, cylindrical structures.

[0080] In this embodiment, the first cover 11 is configured to abut against the first end of the fan 2 along its axial direction, thereby restricting the fan 2 from moving away from the second cover 12.

[0081] Specifically, such as Figure 3 As shown, the first cover 11 has a first boss 111, a second boss 112, a third boss 113 and a fourth boss 114.

[0082] The first boss 111 has a first through hole 1111, which is used for assembly and connection with one end of the rotating shaft of the fan 2.

[0083] The first protrusion 111 and the second protrusion 112 are located on the inner wall of the first cover 11, and the first protrusion 111 and the second protrusion 112 are arranged along the axial direction of the first cover 11. The distance from the inner wall of the first protrusion 111 to the axis of the first cover 11 is less than the distance from the inner wall of the second protrusion 112 to the axis of the first cover 11, so that the first protrusion 111 and the second protrusion 112 form a stepped structure, and the side of the first protrusion 111 close to the second protrusion 112 forms a first surface.

[0084] The third protrusion 113 is located in the inner ring of the first cover 11, and the second protrusion 112 and the third protrusion 113 are arranged along the axial direction of the first cover 11. The distance from the inner wall of the second protrusion 112 to the axis of the first cover 11 is less than the distance from the inner wall of the third protrusion 113 to the axis of the first cover 11, so that the second protrusion 112 and the third protrusion 113 form a stepped structure, and the side of the second protrusion 112 close to the third protrusion 113 forms a second surface.

[0085] The stepped structure formed by the first protrusion 111 and the second protrusion 112, and the stepped structure formed by the second protrusion 112 and the third protrusion 113, together form the first stepped structure of the first cover 11.

[0086] The aforementioned first-step structure includes two-step structures, which increase the limiting area for axial positioning of the fan 2 and improve the stability of axial positioning of the fan 2.

[0087] In other alternative embodiments, the first step structure is not limited to including the first boss 111, the second boss 112 and the third boss 113, but may include only the first boss 111 and the second boss 112, that is, a single-stage limiting method is adopted to simplify the structure.

[0088] Combination Figure 2 , Figure 3 and Figure 6 As shown, during the assembly of the first cover 11 and the fan 2, the first section 211 of the fan 2 mates with the inner wall of the second boss 112, and the side of the first section 211 away from the second section 212 is in contact with the first surface, and the first section 211 and the first surface abut against each other along the axial direction of the fan 2; the second section 212 mates with the inner wall of the third boss 113, and the side of the second section 212 close to the first section 211 is in contact with the second surface, and the second section 212 and the second surface abut against each other along the axial direction of the fan 2.

[0089] The first cover 11 and the first shaft end 21 of the fan 2 cooperate with the first step structure and the first end step structure to limit the first shaft end 21 of the fan 2 along the axial direction, thereby restricting the fan 2 from moving away from the second cover 12 along the axial direction.

[0090] It should be noted that the first cover 11 is provided with a stepped structure to axially limit the first shaft end 21 of the fan 2. The structure is simple and the limiting accuracy of the first shaft end 21 is high. In addition, the first shaft end 21 and the first cover 11 are fitted together through the stepped structure, which can increase the contact area between the fan 2 and the first cover 11, and further reduce the vibration of the fan 2.

[0091] Depending on the shape of the fan 2, the first protrusion 111 and the second protrusion 112 mentioned above can both be frustums.

[0092] The fourth protrusion 114 is located at one end of the first cover 11 near the second cover 12, and the first cover 11 and the fourth protrusion 114 form a first mounting step structure in the radial direction.

[0093] The second cover 12 of this application embodiment is configured to abut against the second end of the fan 2 in the axial direction, restricting the fan 2 from moving away from the first cover 11.

[0094] Specifically, such as Figure 4 and Figure 5 As shown, the second cover 12 has: a fifth protrusion 123, a sixth protrusion 124, a seventh protrusion 125 and an eighth protrusion 126.

[0095] The fifth boss 123, the sixth boss 124, the seventh boss 125, and the eighth boss 126 are all located on the inner wall of the second cover 12, and are arranged sequentially along the axial direction of the second cover 12. The fifth boss 123 has a second through hole 127, which is used for assembly and connection with one end of the rotating shaft of the fan 2.

[0096] The distance from the inner wall of the fifth protrusion 123 to the axis of the second cover 12 is less than the distance from the inner wall of the sixth protrusion 124 to the axis of the second cover 12, so that the fifth protrusion 123 and the sixth protrusion 124 form a stepped structure, and the side of the fifth protrusion 123 close to the sixth protrusion 124 forms a third surface.

[0097] The distance from the inner wall of the sixth protrusion 124 to the axis of the second cover 12 is less than the distance from the seventh protrusion 125 to the axis of the second cover 12, so that the sixth protrusion 124 and the seventh protrusion 125 form a stepped structure, and the side of the sixth protrusion close to the seventh protrusion 125 forms a fourth surface.

[0098] The stepped structure formed by the fifth protrusion 123 and the sixth protrusion 124, and the stepped structure formed by the sixth protrusion 124 and the seventh protrusion 125, together form the second stepped structure of the second cover 12. The second stepped structure is not limited to including the fifth protrusion 123, the sixth protrusion 124, and the seventh protrusion 125.

[0099] The aforementioned second-step structure includes two steps, which increases the limiting area for axial positioning of the fan 2 and improves the stability of axial positioning of the fan 2.

[0100] In other alternative embodiments, the second step structure is not limited to including the fifth protrusion 123, the sixth protrusion 124 and the seventh protrusion 125, but may include only the fifth protrusion 123 and the sixth protrusion 124, that is, a single-stage limiting method is adopted to simplify the structure.

[0101] Combination Figure 2, Figure 4 and Figure 6 As shown, during the assembly of the fan 2 and the second cover 12, the third section 221 of the fan 2 mates with the inner wall of the sixth boss 124, and the side of the third section 221 away from the fourth section 222 is in contact with the third surface, and the third section 221 and the third surface abut against each other along the axial direction of the fan 2; the fourth section 222 mates with the inner wall of the seventh boss 125, and the side of the fourth section 222 close to the third section 221 is in contact with the fourth surface, and the fourth section 222 and the fourth surface abut against each other along the axial direction of the fan 2.

[0102] The second cover 12 and the second shaft end 22 of the fan 2 cooperate with the second step structure and the second end step structure to limit the second shaft end 22 of the fan 2 along the axial direction, restricting the fan 2 from moving away from the first cover 11 along the axial direction. Combined with the axial limitation of the first shaft end 21 of the fan 2 by the first cover 11, the axial limitation of the fan 2 by the first cover 11 and the second cover 12 can be realized.

[0103] It should be noted that the second cover 12 has the same characteristics as the first cover 11, which will not be elaborated here.

[0104] The eighth boss 126 and the second cover 12 form a second mounting step structure at the end near the first cover 11. The first cover 11 and the fourth boss 114 form a first mounting step structure in the radial direction, which can be adapted to the second mounting step structure formed by the eighth boss 126 and the second cover 12 to achieve a radial overlapping connection between the two.

[0105] After the cover 1 is assembled into the cleaning equipment, the pressure provided by the cleaning equipment can fix the first cover 11 and the second cover 12 relative to each other along the axial direction and achieve a sealing effect at the overlapping position of the two.

[0106] In some embodiments, the seventh boss 125 and the eighth boss 126 have a first gap along the radial direction of the second cover 12, and the third boss 113 of the first cover 11 has a second gap with the fan 2. The first gap and the second gap are connected and form an air cavity inside the first cover 11 and the second cover 12.

[0107] like Figure 5 As shown, the side wall of the second cover 12 has an air outlet 121, and the side of the second cover 12 away from the first cover 11 has an air inlet 122. The air outlet 121 is connected to the air cavity formed by the first cover 11 and the second cover 12, and the air inlet 122 is opposite to and connected to the air inlet of the fan 2.

[0108] In some embodiments, the second cover 12 is provided with a first sealing rib 1211 at the edge of the air outlet 121, and the second cover 12 is provided with a second sealing rib 1221 at the edge of the air inlet 122.

[0109] Optionally, both the first sealing rib 1211 and the second sealing rib 1221 are integrally formed with the second cover 12. For example, the first sealing rib 1211 and the second sealing rib 1221 are integrally injection molded with the second cover 12. Therefore, the material of the first sealing rib 1211 and the second sealing rib 1221 can be the same as the material of the second cover 12. Of course, the first sealing rib 1211 and the second sealing rib 1221 can also be made of other materials, enabling the second cover 12 to be sealed and assembled with the cleaning equipment using the first sealing rib 1211 and the second sealing rib 1221.

[0110] During the assembly of the second cover 12 into the cleaning equipment, the first sealing rib 1211 can be used to achieve a sealed connection between the air outlet 121 and the air outlet channel of the cleaning equipment; the second sealing rib 1221 can be used to achieve a sealed connection between the air inlet 122 and the air inlet channel of the cleaning equipment.

[0111] It should be noted that the first sealing rib 1211 and the second sealing rib 1221 are integrally formed on the second cover 12, which can reduce the number of parts of the cover 1, improve the assembly efficiency of the cover 1, and reduce the number of connecting parts used to assemble the first sealing rib 1211 and the second sealing rib 1221 on the second cover 12, thereby reducing production costs.

[0112] In addition, the cover 1 is connected to the whole machine with the first sealing rib 1211 and the second sealing rib 1221, which can realize the interference fit between the cover 1 and the cleaning equipment. The cover 1 provides pressure to the cleaning equipment, which helps to reduce the vibration of the cleaning equipment and further reduce the noise of the cleaning equipment.

[0113] See Figure 2 It can be seen that the air inlet 122 of the second cover 12 is a flared opening that gradually increases in size from the second cover 12 toward the first cover 11 along the axial direction.

[0114] The size of the flare can be set according to different needs. The diameter of the end of the air inlet 122 near the fan 2 should be the same as the diameter of the fan inlet of the fan 2.

[0115] It should be noted that the air inlet 122 of the second cover 12 in this embodiment is a smooth horn shape, which can ensure stable airflow and help reduce noise.

[0116] The above embodiments show that the first cover 11 and the second cover 12 are integrally formed. In other optional embodiments, the first cover 11 and the second cover 12 can also be composed of multiple structures. For example, the first cover 11 is composed of two parts arranged radially.

[0117] The form of the first cover 11 and the second cover 12 can be set according to different needs, and both are within the protection range.

[0118] The above content describes the specific structure of casing 1. The following is combined with... Figures 7 to 9 The application of the housing 1 in cleaning equipment is explained.

[0119] It should be noted that the cleaning equipment mentioned in this article includes, but is not limited to, floor scrubbers. This application embodiment uses a floor scrubber as an example to illustrate the installation of the housing 1.

[0120] like Figure 7 As shown, the floor scrubber includes a main body 100 and a handle 200.

[0121] The handle 200 is fixedly connected to the main body 100, and a cleaning base is connected to the bottom of the main body 100, allowing for floor cleaning. The structure of the cleaning base can be customized to meet different needs, and all designs are within the protection zone.

[0122] like Figure 8 and Figure 9 As shown, the main body 100 includes: a cover 1, a fan 2, and a housing 3.

[0123] The shell 3 includes an upper shell 31, a lower shell 33, and a back plate 32.

[0124] The upper housing 31 contains a cover 1, and a fan 2 is installed inside the cover 1. Optionally, a motor is installed above the fan 2 inside the upper housing 31. The first cover 11 of the cover 1 is axially limited and connected to the motor. Optionally, the output shaft of the motor is rotatably connected to the rotating shaft of the fan 2.

[0125] The lower housing 33 is equipped with a sewage tank and a clean water tank. The second cover 12 of the cover 1 is connected to the upper surface of the lower housing 33 for limiting. When the second cover 12 is connected to the upper surface of the lower housing 33, the second sealing rib 1221 is in contact with the upper surface of the lower housing 33.

[0126] It should be noted that only one assembly method of the cover 1 is shown in this article.

[0127] In addition, such as Figure 10 As shown in the illustration, this application also discloses a cleaning system, which includes a cleaning device and a base station. The base station is configured to house the cleaning device and charge it. The cleaning device is the same as the one disclosed in the above embodiments. Therefore, the cleaning system with this cleaning device also possesses all the aforementioned technical effects, which will not be elaborated upon here. The following content, in conjunction with... Figure 11 and Figure 12 The noise reduction effect of the cleaning equipment using the housing 1 disclosed in the above embodiments.

[0128] Figure 11 and Figure 12 The image shows the floor scrubber in different modes: Quiet, Standard, and Powerful. The power of the fan varies depending on the mode. In Quiet mode, fan 2 operates at its highest power; in Standard mode, it operates at its highest power; and in Powerful mode, it operates at its highest power. The highest power is lower than the second highest power, and the second highest power is lower than the third highest power.

[0129] Figure 11 and Figure 12 The original state of the floor scrubber was a floor scrubber using a plastic fan housing, which has been improved to a floor scrubber using a fan housing disclosed in the embodiments of this application. Figure 11 and Figure 12 The vertical axis in the diagram represents the sound pressure level.

[0130] By comparison Figure 11 As can be seen from the value of the vertical axis, the sound power of the floor scrubber using the fan housing disclosed in the embodiments of this application is significantly reduced during the operation of a single fan.

[0131] By comparison Figure 12 As can be seen from the value of the vertical axis, the noise corresponding to the fan frequency amplitude of the floor scrubber using the fan housing disclosed in the embodiments of this application is significantly reduced during operation. The noise corresponding to the fan frequency amplitude can generally be understood as a whistling sound. Therefore, the floor scrubber using the fan housing disclosed in the embodiments of this application can reduce the whistling sound generated by the fan during operation.

[0132] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0133] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A housing for a fan used in cleaning equipment, characterized in that, include: The cover has a receiving space configured to install a fan (2), at least a portion of the cover abuts against the fan (2), and at least a portion of the cover has a Shore hardness of 10 to 91.

2. The housing for a fan used in cleaning equipment according to claim 1, characterized in that, At least a portion of the cover has a Shore hardness of 10 to 30.

3. The housing for a fan used in cleaning equipment according to claim 1, characterized in that, The wall thickness of at least a portion of the cover is 3mm-10mm.

4. The housing for a fan used in cleaning equipment according to claim 1, characterized in that, At least a portion of the cover has a density of 15 kg / m³. 2 -50 kg / m 2 .

5. The housing for a fan used in cleaning equipment according to claim 1, characterized in that, At least a portion of the material of the cover includes at least one of polyurethane, polyurea, silicone, and / or thermoplastic elastomer.

6. The housing for a fan used in cleaning equipment according to claim 5, characterized in that, At least a portion of the material of the cover includes polyurethane.

7. The housing of a fan for cleaning equipment according to any one of claims 1 to 6, characterized in that, The cover includes a first cover (11) and a second cover (12), which can be fastened together to enclose the accommodating space; At least one of the first cover (11) and the second cover (12) is configured to abut against the fan (2).

8. The housing for a fan used in cleaning equipment according to claim 7, characterized in that, The Shore hardness of both the first cover (11) and the second cover (12) is between 10 and 91 degrees.

9. The housing for a fan used in cleaning equipment according to claim 8, characterized in that, The first cover (11) is configured to abut against the first end of the fan (2) along its axial direction; The second cover (12) is configured to abut against the second end of the fan (2) along its axial direction.

10. The housing for a fan used in cleaning equipment according to claim 9, characterized in that, The inner wall of the first cover (11) has a first step structure, which is configured to abut against the step structure at the first end of the fan (2).

11. The housing for a fan used in cleaning equipment according to claim 10, characterized in that, The first step structure includes: a first boss (111) and a second boss (112); The distance from the inner wall of the first boss (111) to the axis of the first cover (11) is less than the distance from the inner wall of the second boss (112) to the axis of the first cover (11); The side of the first boss (111) near the second boss (112) abuts against the axial end face of the fan (2), and the inner wall of the second boss (112) abuts against the circumferential side of the first end of the fan (2).

12. The housing for a fan used in cleaning equipment according to claim 9, characterized in that, The inner wall of the second cover (12) has a second step structure, which is configured to cooperate with the step structure at the second end of the fan (2), and the fan (2) abuts against the second step structure.

13. The housing for a fan used in cleaning equipment according to claim 12, characterized in that, The second step structure includes: a fifth protrusion (123) and a sixth protrusion (124); The distance from the inner wall of the fifth protrusion (123) to the axis of the second cover (12) is less than the distance from the inner wall of the sixth protrusion (124) to the axis of the second cover (12); The fifth protrusion (123) abuts against the axial end face of the fan (2) on the side near the sixth protrusion (124), and the inner wall of the sixth protrusion (124) abuts against the circumferential side of the second end of the fan (2).

14. The housing for a fan used in cleaning equipment according to claim 7, characterized in that, The first cover (11) has a first mounting step structure on the side near the second cover (12), and the second cover (12) has a second mounting step structure on the side near the first cover (11). The first mounting step structure overlaps and engages with the second mounting step structure.

15. The housing for a fan used in cleaning equipment according to claim 7, characterized in that, At least one of the first cover (11) and the second cover (12) has an air outlet (121) communicating with the accommodating space and an air inlet (122) communicating with the fan inlet of the fan (2).

16. The housing for a fan used in cleaning equipment according to claim 15, characterized in that, The second cover (12) has the air inlet (122) on the side away from the first cover (11), and the side wall of the second cover (12) has the air outlet (121).

17. The housing for a fan used in cleaning equipment according to claim 15, characterized in that, The second cover (12) has a first sealing rib (1211) integrally formed on the outer circumference of the air outlet (121).

18. The housing for a fan used in cleaning equipment according to claim 15, characterized in that, The second cover (12) has a second sealing rib (1221) integrally formed on the outer circumference of the air inlet (122).

19. The housing for a fan used in cleaning equipment according to claim 7, characterized in that, At least one of the first cover (11) and / or the second cover (12) is an integrally formed part or a splicing connector.

20. A cleaning device, characterized in that, It includes a fan (2), a housing (3) and a cover (1), wherein the fan (2) is installed inside the cover (1) and the cover (1) is installed inside the housing (3); The housing (1) is the housing (1) of a fan for cleaning equipment as described in any one of claims 1 to 19.

21. The cleaning equipment according to claim 20, characterized in that, At least a portion of the cover body is interference-fitted with the housing (3).

22. A cleaning system, characterized in that, It includes cleaning equipment and a base station, the base station being configured to house the cleaning equipment, the cleaning equipment being the cleaning equipment as described in claim 20 or 21.

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