Cooling assembly, rolling brush device and ground cleaning equipment

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a cooling assembly, a rolling brush device and ground cleaning equipment. The cooling assembly comprises a cooler, the cooler comprises a body with a gas circulation flow path and an air inlet pipe and an air outlet pipe which are communicated with the gas circulation flow path, at least part of the body of the cooler is located in the clear water tank, the air inlet pipe is communicated with an air pump located outside the clear water tank, and the air outlet pipe is used for outputting cooling air to the rolling brush motor; the air pump is provided with an air inlet used for sucking air and an air outlet communicated with the air inlet pipe. According to the utility model, rapid cooling of the rolling brush motor can be realized by using the cooler, so that the use effect of the rolling brush motor is ensured, the service cycle of the rolling brush motor is effectively prolonged, and the use experience of a user is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cooling component, a roller brush device and a floor cleaning device. Background Art

[0002] As people's quality of life continues to improve, more and more users are beginning to use floor cleaning equipment such as floor scrubbers to achieve automatic cleaning of their living or residential environments.

[0003] A floor scrubber primarily consists of a floor brush, a wastewater tank, a clean water tank, a motor, and a battery. The floor brush consists of a roller brush, a water spray assembly, a wiper blade, a suction channel, a roller brush motor, and a water pump. The water spray assembly draws water from the clean water tank and sprays it onto the roller brush, wetting it as it rolls across the floor, achieving a scrubbing and mopping effect. The wiper blade removes wastewater, dust, and other debris from the roller brush. This wastewater, dust, and other debris falls near the suction channel and is then sucked into the wastewater tank.

[0004] The roller brush requires a roller motor to operate. However, during extended use or when cleaning stubborn stains, the motor increases its output power to increase the brush speed, which can cause the motor to heat up. When the motor temperature reaches the motor protection temperature, it shuts down to protect against temperature rise. If the motor temperature reaches the protection temperature before scrubbing and mopping are complete, the user experience will be significantly reduced.

[0005] On the other hand, the existing floor scrubbers on the market are also equipped with cooling structures for the roller brush motors, such as adding a fan to cool the roller brush motor, or designing a ventilation channel to connect the suction port of the floor scrubber and the roller brush motor, and using the suction force of the suction port to cool the roller brush motor.

[0006] When the above-mentioned cooling structure is limited by the internal structural space of the floor scrubber, the cooling effect on the roller brush motor is poor, and the long-term use of the roller brush motor cannot be guaranteed, thereby reducing the user experience. Utility Model Content

[0007] In view of this, the utility model provides a cooling assembly, a roller brush device and a floor cleaning device to solve the problem that the cooling structure in the existing floor scrubber has a poor cooling effect on the roller brush motor, resulting in poor use effect of the roller brush motor and poor user experience.

[0008] A first aspect of an embodiment of the present invention provides a cooling assembly for use in a floor cleaning device, the floor cleaning device comprising a clean water tank, a roller brush motor, and a cleaning member driven by the roller brush motor, the clean water tank being used to store clean water used by the cleaning member to clean the floor, the cooling assembly comprising:

[0009] a cooler, the cooler comprising a body having a gas flow path formed therein, and an air inlet pipe and an air outlet pipe in communication with the gas flow path, the cooler body being at least partially located within the clean water tank, the air inlet pipe being in communication with an air pump located outside the clean water tank, and the air outlet pipe being configured to output cooling air to the roller brush motor;

[0010] The air pump has an air inlet for inhaling air and an air outlet communicated with the air inlet pipe.

[0011] In some embodiments, a plurality of baffles are provided in the cooler;

[0012] The first baffle of the two adjacent baffles is connected to the side wall outside the first side wall of the body, and the second baffle of the two adjacent baffles is connected to the side wall outside the second side wall of the body, wherein the first side wall and the second side wall are two opposite side walls of the body along its width direction.

[0013] In some embodiments, the first baffle and the second baffle are arranged in sequence to divide the gas flow path into a plurality of continuously folded and connected buffer chambers;

[0014] Wherein, the cross-sectional area of ​​gas flow in any two of the buffer cavities is the same;

[0015] or;

[0016] Along the flow direction of the gas flow, the gas flow cross-sectional area of ​​the buffer cavity located at an odd position is larger or smaller than the gas flow cross-sectional area of ​​the buffer cavity located at an even position.

[0017] In some embodiments, the clean water tank includes an upper cover and a lower cover;

[0018] The upper cover is fixedly connected to the lower cover to form the clean water tank having an internal accommodating space, wherein clean water flows in the accommodating space;

[0019] The cooler is accommodated in the accommodating space to cool the airflow flowing through the cooler through heat exchange between the clean water and the airflow;

[0020] Wherein, the air inlet pipe and the air outlet pipe are both embedded in the lower cover.

[0021] In some embodiments, a first sealing member is provided at a connection position between the air inlet pipe and the lower cover, and a second sealing member is provided at a connection position between the air outlet pipe and the lower cover.

[0022] In some embodiments, a first fixing member and a second fixing member are provided on the cooler, and the first fixing member and the second fixing member are provided on different sides of the cooler;

[0023] The first fixing member is connected to the lower cover via a fastener, and the second fixing member is clamped to the lower cover;

[0024] Wherein, the fasteners at least include fastening bolts.

[0025] In some embodiments, the distance between the bottom of the cooler and the top of the lower cover is a first distance, and the value range of the first distance is between 0.8 mm and 4 mm;

[0026] as well as,

[0027] The distance between any side wall of the cooler and the side wall of the clean water tank is a second distance, and the second distance is greater than or equal to 0.8 mm.

[0028] In some embodiments, the cooling assembly further comprises a connecting pipe, the connecting pipe comprising a first end and a second end, wherein the cross-sectional area of ​​the first end is different from that of the second end;

[0029] The first end is connected to the air outlet pipe, and the second end is connected to the inlet end of the roller brush motor. The airflow after cooling treatment enters the interior of the roller brush motor from the inlet end to cool the interior of the roller brush motor.

[0030] In some embodiments, the cross-sectional area of ​​the connecting pipe gradually decreases along the flow direction of the airflow, wherein the cross-sectional area of ​​the second end is greater than or equal to the cross-sectional area of ​​the air outlet pipe.

[0031] In some embodiments, the cooling assembly further comprises an air pump outlet pipe, and the air outlet of the air pump is connected to one end of the air pump outlet pipe;

[0032] The other end of the air pump outlet pipe is connected to the air inlet pipe through a docking piece;

[0033] Wherein, a third sealing member is provided at the connection position between the docking member and the air intake pipe.

[0034] A second aspect of the embodiment of the present utility model provides a roller brush device, the roller brush device comprising a roller brush motor, a roller brush and the cooling assembly as described in the first aspect;

[0035] The roller brush motor is used to drive the roller brush to rotate;

[0036] The cooling assembly is arranged in the roller brush device, and the second end of the connecting pipe in the cooling assembly is communicated with the inlet end of the roller brush motor.

[0037] A third aspect of an embodiment of the present utility model provides a floor cleaning device, which includes the roller brush device as described in the second aspect.

[0038] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0039] In the cooling component, roller brush device and floor cleaning equipment of the present invention, the floor cleaning equipment includes a clean water tank, a roller brush motor and a cleaning member (i.e., a roller brush) driven by the roller brush motor; the cooling component includes a cooler, the cooler includes a main body formed with a gas circulation path and an air inlet pipe and an air outlet pipe connected to the gas circulation path; the main body of the cooler is at least partially located in the clean water tank so as to reduce the temperature of the air flow in the gas circulation path by the clean water in the clean water tank; the air inlet pipe is connected to an air pump located outside the clean water tank, and the air outlet pipe is used to output cooling air to the roller brush motor so as to use the cooled air flow to cool the inside of the roller brush motor; wherein, the air pump has an air inlet for inhaling air and an air outlet connected to the air inlet pipe.

[0040] In the utility model, an air flow is delivered to the roller brush motor through a separately arranged air pump. When this part of the air flow passes through the gas circulation passage, the clean water in the clean water tank can be used to cool the delivered air flow. The cooled air flow can achieve rapid cooling of the inside of the roller brush motor, thereby ensuring the use effect of the roller brush motor and effectively improving the service life of the roller brush motor and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary. For those skilled in the art, other implementation drawings can be derived from the provided drawings without inventive effort.

[0042] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0043] Figure 1 This is a partial structural diagram of a cooler in a cooling assembly according to an embodiment of the present utility model;

[0044] Figure 2 This is a partial structural diagram of a cooling assembly according to an embodiment of the present utility model;

[0045] Figure 3 This is a partial structural diagram of a cooling assembly installed in a roller brush device according to an embodiment of the present utility model;

[0046] Figure 4 This is a cross-sectional view of a cooling assembly installed in a roller brush device according to an embodiment of the present utility model;

[0047] Figure 5 This is a structural diagram of a clean water tank according to an embodiment of the present utility model;

[0048] Figure 6 This is a schematic diagram of the exploded structure of a part of the structure of a roller brush device according to an embodiment of the present utility model;

[0049] Figure 7 It is a cross-sectional view of a partial structure of a floor cleaning device according to an embodiment of the present utility model.

[0050] Reference numerals:

[0051] 10. Floor scrubber; 20. Clean water tank; 21. Upper cover; 22. Lower cover; 30. Roller brush motor; 31. End cover; 40. Roller brush;

[0052] 100, cooling assembly; 110, cooler; 111, body; 111a, first sidewall; 111b, second sidewall; 11a, gas flow path; 112, inlet pipe; 113, outlet pipe; 114, baffle; 114a, first baffle; 114b, second baffle; 115, first fixing member; 116, second fixing member; 120, connecting pipe; 121, first end; 122, second end; 130, air pump outlet pipe;

[0053] 200, air pump; 300, first sealing member; 400, second sealing member; 500, docking member; 600, third sealing member. DETAILED DESCRIPTION

[0054] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0055] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the", and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms. Unless the context clearly indicates otherwise, "a plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0056] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0057] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0058] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0059] As mentioned in the background, existing floor scrubbers on the market also have cooling mechanisms for the brush motor. For example, a fan is added to cool the brush motor, where the fan rotates synchronously with the brush motor's rotor to cool the brush motor. Alternatively, a ventilation channel is designed to connect the scrubber's suction port and the brush motor, utilizing the suction force of the suction port to cool the brush motor.

[0060] Among them, the cooling method of adding a fan to the end of the roller brush motor is limited by the internal space design structure of the floor scrubber, which limits the fan's size and size, resulting in a weak air volume. Furthermore, the airflow blown by the fan is indoor air. In the summer, when the room temperature is high without air conditioning, the temperature of the air blown by the fan is also relatively high, so the cooling effect of adding a fan is poor.

[0061] The design of the ventilation channel is also limited by the internal space design structure of the floor scrubber, resulting in a relatively small ventilation cross-sectional area. In other words, to ensure the suction effect of the floor scrubber, the ventilation cross-sectional area of ​​the ventilation channel must be much smaller than the cross-sectional area of ​​the suction port. When the cross-sectional area of ​​the ventilation channel is small, its internal resistance is relatively large. Based on this, most of the airflow generated by the negative pressure motor in the floor scrubber flows through the suction port, and only a small portion enters the ventilation channel. This portion of airflow has a very limited effect on cooling the roller brush motor, and the temperature of this portion of airflow is the same as the room temperature. Therefore, the cooling effect of the ventilation channel cooling method is not ideal.

[0062] Based on the technical problems in the above background technology, an exemplary embodiment of the present invention provides a cooling assembly 100. The cooling assembly 100 can be applied to a floor cleaning device, wherein the floor cleaning device can include a floor scrubber 10.

[0063] The floor scrubber can be a semi-automatic floor scrubber, a fully automatic floor scrubber, or a hand-push floor scrubber, a rear-station floor scrubber, a ride-on floor scrubber, etc. Alternatively, the floor scrubber can be an intelligent floor scrubber with a self-cleaning function or a high-temperature sterilization function.

[0064] Alternatively, the floor cleaning device may further include a base station and a floor scrubber adapted to be connected to the base station.

[0065] Among them, the base station can use laser or infrared technology to locate the floor scrubber. Through communication between the floor scrubber and the base station, it can accurately calculate the position information of the floor scrubber in space, and realize real-time monitoring and remote operation of the floor scrubber through the positioning function.

[0066] When a floor scrubber is placed at a workplace, the base station can quickly plan the scrubbing route, optimizing it based on the floor's conditions and defects, thereby significantly improving scrubbing efficiency. The workplace can be the floor of a user's home, an office, a shopping mall, or other locations.

[0067] The base station can also sense the surrounding environment and control the scrubber to avoid obstacles. If the scrubber encounters an obstacle, such as a person or other object, the base station can control the scrubber to stop or bypass the obstacle, ensuring the safety of both personnel and the scrubber.

[0068] On the other hand, the base station can also charge the floor scrubber, provide a place for the floor scrubber, and process the garbage or sewage generated by the floor scrubber during operation. It should be noted that the garbage here can be solid garbage or non-solid garbage.

[0069] like Figures 1 to 7 As shown, in this example and the following examples, the floor cleaning equipment is a floor scrubber 10 as an example for description.

[0070] The floor scrubber 10 is provided with a clean water tank 20 , a roller brush motor 30 and a cleaning member 40 , wherein the roller brush motor is used to drive the cleaning member 40 to perform cleaning operations on the floor.

[0071] The clean water tank 20 is used to store the clean water used when the cleaning member 40 cleans the floor. The cleaning member 40 may include but is not limited to a roller brush.

[0072] It should be noted that the floor scrubber 10 also includes components such as a floor brush, a sewage tank, a motor, and a battery. The floor brush comprises a roller brush 40, a water spray assembly, a wiper blade, a suction port channel, a roller brush motor 30, and a water pump. The water spray assembly draws clean water from the clean water tank 20 and sprays it onto the roller brush 40, wetting it. The roller brush 40 then rolls across the floor, achieving a scrubbing and mopping effect. The wiper blade scrapes off sewage, attached dust, and other debris from the roller brush 40. The scraped sewage, dust, and other debris fall near the suction port channel and are then sucked into the sewage tank through the suction port channel.

[0073] like Figures 1 to 7 As shown, the cooling assembly 100 includes a desuperheater 110 .

[0074] The cooler 110 includes a body 111, an air inlet pipe 112, and an air outlet pipe 113. The body 111 is hollow and has a gas flow path 11a formed therein.

[0075] The main body 111 may be a rectangular parallelepiped structure with a hollow interior, or the main body 111 may be in shapes other than a rectangular parallelepiped structure, such as a square structure with a hollow interior, an arc-shaped structure with an arched structure and a hollow interior, etc.

[0076] In order to facilitate the processing and production of the main body 111, reduce the difficulty of producing the main body 111, and enable the main body 111 to better adapt to the structural dimensions of the clean water tank 20, this example and any of the following embodiments are described as an example of a main body 111 with a hollow internal rectangular structure.

[0077] One end of the air intake pipe 112 is connected to the air intake end of the gas flow path 11a, and the other end of the air intake pipe 112 is connected to the air pump 200 located outside the clean water tank 20. The air pump 200 has an air inlet for sucking air and an air outlet connected to the air intake pipe 112.

[0078] The air outlet pipe 113 is used to output cooling air to the roller brush motor 30 . One end of the air outlet pipe 113 is connected to the air outlet end of the gas flow path 11 a , and the other end of the air outlet pipe 113 is connected to the interior of the roller brush motor 30 .

[0079] The body 111 of the cooler 110 is at least partially located in the clean water tank 20, that is, the gas flow path 11a in the body 111 is at least partially immersed in the clean water tank 20. In other words, the body 111 can be completely immersed in the clean water tank 20, or only partially immersed in the clean water tank 20.

[0080] In this example, when the floor scrubber 10 is in use, clean water is stored in the clean water tank 20 inside it. When the airflow in the air pump 200 is discharged from the air outlet 220 and enters the gas circulation path 11a through the air inlet pipe 112, the clean water will exchange heat with the airflow in the gas circulation path 11a, thereby using the clean water to cool the airflow, so that the temperature of the cooled airflow is lower than the air temperature. Finally, after the cooled airflow is discharged from the air outlet pipe 113, it is blown directly to the roller brush motor 30. Specifically, the cooled airflow will blow directly to the inside of the roller brush motor 30, thereby greatly reducing the temperature of the roller brush motor 30 during operation, and realizing rapid cooling of the roller brush motor 30, thereby ensuring the use effect of the roller brush motor 30, and effectively improving the service life of the roller brush motor 30 and the user's experience.

[0081] On the other hand, compared with the solution of cooling the roller brush motor 30 in the prior art, in this example, a separate air pump 200 is set in the floor scrubber 10, which can effectively ensure the air flow rate for cooling the roller brush motor 30, thereby greatly improving the cooling effect of the roller brush motor 30.

[0082] like Figure 1 As shown, in some embodiments, a plurality of baffles 114 are provided in the cooler 110. Two adjacent baffles 114 include a first baffle 114a and a second baffle 114b.

[0083] The first baffle 114a is connected to sidewalls other than the first sidewall 111a of the body 111 . That is, the first baffle 114a is connected to three of the four sidewalls forming the body 111 but is not connected to the first sidewall 111a .

[0084] The second baffle 114b is connected to the sidewalls of the body 111 other than the second sidewall 111b. That is, the second baffle 114b is connected to three of the four sidewalls forming the body 111 but not to the second sidewall 111b.

[0085] The first side wall 111 a and the second side wall 111 b are two side walls of the body 111 that are oppositely disposed along the width direction of the body 111 .

[0086] Based on this, refer to Figure 1 As shown in FIG, a plurality of first baffles 114a and a plurality of second baffles 114b are arranged in the gas flow passage 11a in the following manner: first baffle 114a, second baffle 114b, first baffle 114a, second baffle 114b, etc. are arranged in sequence.

[0087] Among them, along the width direction of the body 111, the first baffle 114a is arranged on the upper side of the gas flow path 11a, and the second baffle 114b is arranged on the lower side of the gas flow path 11a. Figure 1 The arrow in the figure indicates the direction), so that the gas flow path 11a forms a buffer path that continuously bends and turns. Such a design can greatly slow down the flow rate of the airflow in the gas flow path 11a, and at the same time effectively increase the internal surface area of ​​the main body 111, so that the airflow can fit the inner surface of the cooler 110 to the maximum extent, thereby effectively increasing the circulation time of the airflow in the cooler 110, increasing the heat exchange time between the airflow and the clean water, and thus greatly improving the cooling effect of the airflow.

[0088] In order to ensure heat exchange between the airflow and the clean water, the main body 111 can be made of materials with good thermal conductivity such as copper and aluminum, so as to achieve rapid heat conduction to ensure and improve the cooling effect of the cooler 110.

[0089] like Figure 1 As shown, in some embodiments, the first baffle 114a and the second baffle 114b are arranged in sequence, thereby dividing the gas flow path 11a into a plurality of continuously bent and connected buffer chambers.

[0090] In one example, in order to ensure the stability of the airflow in the gas circulation path 11a, the cross-sectional area of ​​the gas flow in any two buffer chambers is the same to form a tortuous buffer path, thereby increasing the heat exchange time between the airflow and the clean water, effectively reducing the temperature of the airflow, so that the temperature of the airflow is lower than the air temperature, and finally acts on the roller brush motor 30, and fully cools the inside of the roller brush motor 30. As a result, the temperature of the roller brush motor 30 during operation can be greatly reduced, and the roller brush motor 30 can be quickly cooled, thereby ensuring the use effect of the roller brush motor 30, and effectively improving the service life of the roller brush motor 30 and the user's experience.

[0091] In another example, along the flow direction of the gas flow, the gas flow cross-sectional area of ​​the buffer cavity located at an odd position is larger than the gas flow cross-sectional area of ​​the buffer cavity located at an even position.

[0092] Alternatively, along the flow direction of the gas flow, the gas flow cross-sectional area of ​​the buffer cavity located at an odd position is smaller than the gas flow cross-sectional area of ​​the buffer cavity located at an even position.

[0093] Such a design can make the air flow flowing in the gas circulation path 11a produce an effect of sometimes fast and sometimes slow during the flow process, so that the temperature of the air flow can be effectively reduced while ensuring the heat exchange time with the clean water, so that the temperature of the air flow is lower than the air temperature, and finally acts on the roller brush motor 30, and fully cools the inside of the roller brush motor 30. As a result, the temperature of the roller brush motor 30 during operation can be greatly reduced, and the roller brush motor 30 can be quickly cooled, thereby ensuring the use effect of the roller brush motor 30, and effectively improving the service life of the roller brush motor 30 and the user's experience.

[0094] like Figures 4 to 6 As shown, in some embodiments, the clean water tank 20 includes an upper cover 21 and a lower cover 22 , and the upper cover 21 and the lower cover 22 are fixedly connected to form the clean water tank 20 with an internal accommodating space between the upper cover 21 and the lower cover 22 .

[0095] The accommodating space is used to store clean water. On the other hand, the cooler 110 is accommodated in the accommodating space to cool the airflow flowing through the cooler 110 by heat exchange between the clean water and the airflow.

[0096] It should be noted that the cooler 110 may be entirely accommodated in the accommodation space, or a portion of the cooler 110 may be accommodated in the accommodation space.

[0097] The air inlet pipe 112 and the air outlet pipe 113 are both embedded in the lower cover 22 .

[0098] In this example, the clean water tank 20 is composed of an upper cover 21 and a lower cover 22 , wherein both the upper cover 21 and the lower cover 22 can be designed and manufactured according to the spatial structure inside the floor scrubber 10 , so that the clean water tank 20 can be better adapted to the floor scrubber 10 .

[0099] like Figure 4 and Figure 6 As shown, in some embodiments, in order to ensure the sealing between the air inlet pipe 112 and the lower cover 22, and between the air outlet pipe 113 and the lower cover 22, a first seal 300 is provided at the connection position of the air inlet pipe 112 and the lower cover 22, and a second seal 400 is provided at the connection position of the air outlet pipe 113 and the lower cover 22.

[0100] The materials of the first sealing member 300 and the second sealing member 400 can be the same or different. In a specific example, the first sealing member 300 and the second sealing member 400 are both made of rubber.

[0101] Rubber materials include, but are not limited to, TPE, TPU, and silicone. TPE, short for Thermoplastic Elastomer, is a thermoplastic elastomer material that can be overmolded. TPU, short for Thermoplastic Polyurethanes, is a thermoplastic polyurethane elastomer rubber that also exhibits thermoplastic properties and can be overmolded.

[0102] In one example, the first and second sealing members 300, 400 are integrally formed with the lower cover 22. During manufacturing, the lower cover 22 is first injection molded, and then the first and second sealing members 300, 400 are integrally molded with the lower cover 22 via a secondary injection molding process. This effectively ensures and enhances the sealing between the inlet pipe 112 and the lower cover 22, as well as between the outlet pipe 113 and the lower cover 22.

[0103] like Figure 1 As shown, in some embodiments, a first fixing member 115 and a second fixing member 116 are provided on the cooler 110 .

[0104] The first fixing member 115 and the second fixing member 116 are disposed on different sides of the cooler 110 .

[0105] The first fixing member 115 is connected to the lower cover 22 via fasteners, and the fasteners include but are not limited to fastening bolts and the like.

[0106] The second fixing member 116 is connected to the lower cover 22 in a snap-fit ​​manner. The second fixing member 116 can be a strip-shaped arc-shaped plate structure to achieve the snap-fit ​​between the device and the lower cover 22 .

[0107] It should be noted that when installing the cooler 110 , the second fixing member 116 is first snapped onto the lower cover 22 , and then the first fixing member 115 is fixed to the lower cover 22 using fasteners.

[0108] The number of the first fixing member 115 and the second fixing member 116 is at least one. In a specific example, the number of the first fixing member 115 and the second fixing member 116 are both two.

[0109] In this example, the cooler 110 can be firmly fixed in the clean water tank 20 by the first fixing member 115 and the second fixing member 116 to prevent the cooler 110 from shaking when the scrubber 10 is working, thereby affecting the transmission of the airflow.

[0110] like Figure 7 As shown, in some embodiments, to effectively cool the airflow, the cooler 110 needs to be completely immersed in clean water. A distance must be maintained between the cooler 110 and the lower cover 22 of the clean water tank 20. The cooler 110 should not be too close to the lower cover 22 to prevent the bottom of the cooler 110 from being too close to the lower cover 22, resulting in insufficient contact between the bottom of the cooler 110 and the clean water, thus affecting the cooling effect. Therefore, to ensure that the bottom of the cooler 110 is in full contact with the clean water, the distance between the bottom of the cooler 110 and the top of the lower cover 22 is set to a first distance A, and the value range of the first distance A is between 0.8 mm and 4 mm.

[0111] Among them, the first distance A≥0.8 is to ensure that the bottom surface of the cooler 110 is in full contact with the clean water, and the first distance A≤4 is because the cooler 110 cannot be assembled too high. When the cooler 110 is assembled too high, it will cause too much residual water in the clean water tank 20, or when the horizontal surface of the clean water tank drops below the cooler 110, the cooler 110 will fail to cool the airflow.

[0112] On the other hand, in order to ensure that any side wall of the cooler 110 except its bottom can fully contact with the clean water, the distance between any side wall of the cooler 110 except its bottom and the side wall of the clean water tank 20 is set to a second distance B, and the second distance B is greater than or equal to 0.8 mm.

[0113] like Figure 2 Combined with Figure 4 and Figure 6 As shown, in some embodiments, the cooling assembly 100 further includes a connecting pipe 120. The connecting pipe 120 includes a first end 121 and a second end 122, and the cross-sectional areas of the first end 121 and the second end 122 are different.

[0114] Along the flow direction of the airflow, the cross-sectional area of ​​the connecting pipe 120 gradually decreases, and the cross-sectional area of ​​the second end 122 is slightly larger than or equal to the cross-sectional area of ​​the air outlet pipe 113 .

[0115] That is, the cross-sectional area of ​​the first end 121 is larger than the cross-sectional area of ​​the second end 122. The first end 121 is connected to the air outlet pipe 113, and the second end 122 is connected to the inlet end of the roller brush motor 30. After entering the first end 121, the cooled airflow is buffered in the connecting pipe 120 and discharged through the second end 122 with a smaller cross-sectional area. The cooled airflow forms a slow-in, fast-out flow pattern in the connecting pipe 120, thereby rapidly cooling the interior of the roller brush motor 30. This can greatly reduce the operating temperature of the roller brush motor 30, achieve rapid cooling of the roller brush motor 30, and thereby ensure the use effect of the roller brush motor 30, effectively improving the service life of the roller brush motor 30 and the user experience.

[0116] like Figure 2 and Figure 6 As shown, in some embodiments, the cooling assembly 100 further includes an air pump outlet pipe 130. The air outlet of the air pump 200 is connected to one end of the air pump outlet pipe 130, and the other end of the air pump outlet pipe 130 is connected to the air inlet pipe 112 via a docking member 500. The docking member 500 facilitates a quick connection between the air inlet pipe 112 and the air pump outlet pipe 130, for example, by using a quick plug-in method to achieve the connection between the air inlet pipe 112 and the air pump outlet pipe 130.

[0117] In order to ensure and improve the sealing performance at the connection position between the connecting piece 500 and the air intake pipe 112 , a third sealing piece 600 is provided at the connection position between the connecting piece 500 and the air intake pipe 112 .

[0118] The third sealing member 600 may be made of the same material as or different from the first sealing member 300 and the second sealing member 400. In a specific example, the third sealing member 600, the first sealing member 300 and the second sealing member 400 are all made of rubber.

[0119] Rubber materials include, but are not limited to, TPE, TPU, and silicone. TPE, short for Thermoplastic Elastomer, is a thermoplastic elastomer material that can be overmolded. TPU, short for Thermoplastic Polyurethanes, is a thermoplastic polyurethane elastomer rubber that also exhibits thermoplastic properties and can be overmolded.

[0120] like Figure 6As shown, an exemplary embodiment of the present invention provides a roller brush device, wherein the roller brush assembly includes a roller brush motor 30, a roller brush 40 and a cooling assembly 100 of any of the above embodiments.

[0121] The roller brush motor 30 is used to drive the roller brush to rotate. The outlet end of the roller brush motor 30 is connected to the roller brush 40 through an end cap 31. The end cap 31 is provided with a plurality of air outlets, through which the air flow after the cooling process inside the roller brush motor 30 can flow out.

[0122] The cooling assembly 100 is disposed in the roller brush device, wherein the second end 122 of the connecting pipe 120 in the cooling assembly 100 is communicated with the inlet end of the roller brush motor 30 .

[0123] In this example, an air flow is delivered to the roller brush motor 30 by a separately arranged air pump 200. When this part of the air flow passes through the gas circulation passage 11a, the clean water in the clean water tank 20 can be used to cool the delivered air flow, so that the temperature of the cooled air flow is lower than the air temperature. The cooled air flow can achieve rapid cooling of the inside of the roller brush motor 30, thereby ensuring the use effect of the roller brush motor 30 and effectively improving the service life of the roller brush motor 30 and the user's experience.

[0124] like Figure 7 As shown, an exemplary embodiment of the present invention provides a floor cleaning device, which may include a floor scrubber 10 .

[0125] The floor scrubber can be a semi-automatic floor scrubber, a fully automatic floor scrubber, or a push-type floor scrubber, a rear-station floor scrubber, a ride-on floor scrubber, or an intelligent floor scrubber with a self-cleaning function or a high-temperature sterilization function.

[0126] In the above example, the floor cleaning equipment includes a clean water tank 20, a roller brush motor 30 and a cleaning element (i.e., a roller brush 40) driven by the roller brush motor. The cooling assembly 100 includes a cooler 110. The cooler 110 includes a main body 111 formed with a gas circulation path 11a and an air inlet pipe 112 and an air outlet pipe 113 connected to the gas circulation path 11a. The main body 111 of the cooler 110 is at least partially located in the clean water tank 20 to reduce the temperature of the air flow in the gas circulation path 11a by the clean water in the clean water tank 20. The air inlet pipe 112 is connected to the air pump 200 located outside the clean water tank 20, and the air outlet pipe 113 is used to output cooling air to the roller brush motor 30 to use the cooled air flow to cool the interior of the roller brush motor 30; wherein, the air pump 200 has an air inlet for inhaling air and an air outlet connected to the air inlet pipe 112.

[0127] On the other hand, in this example, a separate air pump delivers air to the roller brush motor, effectively ensuring the flow rate of air for subsequent cooling of the roller brush motor 30. Specifically, as the air flows through the air flow passage 11a, the clean water in the clean water tank 20 cools the delivered air flow. The cooled air flow rapidly cools the interior of the roller brush motor 30, thereby ensuring the effectiveness of the roller brush motor 30 and effectively extending the lifespan of the roller brush motor 30 and the user experience.

[0128] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the present invention being indicated by the following claims.

[0129] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A cooling assembly for use in a floor cleaning device, the floor cleaning device comprising a clean water tank, a roller brush motor, and a cleaning element driven by the roller brush motor, the clean water tank being used to store clean water used by the cleaning element to clean the floor, characterized in that: The cooling assembly comprises: a cooler, the cooler comprising a body having a gas flow path formed therein, and an air inlet pipe and an air outlet pipe in communication with the gas flow path, the cooler body being at least partially located within the clean water tank, the air inlet pipe being in communication with an air pump located outside the clean water tank, and the air outlet pipe being configured to output cooling air to the roller brush motor; The air pump has an air inlet for inhaling air and an air outlet communicated with the air inlet pipe.

2. The cooling assembly according to claim 1, wherein: A plurality of baffles are provided in the cooler; The first baffle of the two adjacent baffles is connected to the side wall outside the first side wall of the body, and the second baffle of the two adjacent baffles is connected to the side wall outside the second side wall of the body, wherein the first side wall and the second side wall are two opposite side walls of the body along its width direction.

3. The cooling assembly according to claim 2, wherein: The first baffle and the second baffle are arranged in sequence to divide the gas flow path into a plurality of continuously bent and connected buffer chambers; Wherein, the cross-sectional area of ​​gas flow in any two of the buffer cavities is the same; or; Along the flow direction of the gas flow, the gas flow cross-sectional area of ​​the buffer cavity located at an odd position is larger or smaller than the gas flow cross-sectional area of ​​the buffer cavity located at an even position.

4. The cooling assembly according to claim 1, wherein: The clean water tank comprises an upper cover and a lower cover; The upper cover is fixedly connected to the lower cover to form the clean water tank having an internal accommodating space, wherein clean water flows in the accommodating space; The cooler is accommodated in the accommodating space to cool the airflow flowing through the cooler through heat exchange between the clean water and the airflow; Wherein, the air inlet pipe and the air outlet pipe are both embedded in the lower cover.

5. The cooling assembly according to claim 4, characterized in that A first sealing member is provided at a connection position between the air inlet pipe and the lower cover, and a second sealing member is provided at a connection position between the air outlet pipe and the lower cover.

6. The cooling assembly according to claim 5, characterized in that A first fixing member and a second fixing member are provided on the cooler, wherein the first fixing member and the second fixing member are provided on different sides of the cooler; The first fixing member is connected to the lower cover via a fastener, and the second fixing member is clamped to the lower cover; Wherein, the fasteners at least include fastening bolts.

7. The cooling assembly according to claim 6, characterized in that The distance between the bottom of the cooler and the top of the lower cover is a first distance, and the value range of the first distance is between 0.8 mm and 4 mm; as well as, The distance between any side wall of the cooler and the side wall of the clean water tank is a second distance, and the second distance is greater than or equal to 0.8 mm.

8. The cooling assembly according to any one of claims 1 to 7, characterized in that: The cooling assembly further includes a connecting pipe, the connecting pipe including a first end and a second end, wherein the cross-sectional area of ​​the first end is different from that of the second end; The first end is connected to the air outlet pipe, and the second end is connected to the inlet end of the roller brush motor. The airflow after cooling treatment enters the interior of the roller brush motor from the inlet end to cool the interior of the roller brush motor.

9. The cooling assembly according to claim 8, wherein: Along the flow direction of the airflow, the cross-sectional area of ​​the connecting pipe gradually decreases, wherein the cross-sectional area of ​​the second end is greater than or equal to the cross-sectional area of ​​the air outlet pipe.

10. The cooling assembly according to any one of claims 1 to 7, characterized in that: The cooling assembly further includes an air pump outlet pipe, and the air outlet of the air pump is connected to one end of the air pump outlet pipe; The other end of the air pump outlet pipe is connected to the air inlet pipe through a docking piece; Wherein, a third sealing member is provided at the connection position between the docking member and the air intake pipe.

11. A roller brush device, characterized in that: The roller brush device comprises a roller brush motor, a roller brush and a cooling assembly according to any one of claims 1 to 10; The roller brush motor is used to drive the roller brush to rotate; The cooling assembly is arranged in the roller brush device, and the second end of the connecting pipe in the cooling assembly is communicated with the inlet end of the roller brush motor.

12. A floor cleaning device, characterized in that: Comprising the roller brush device as claimed in claim 11.

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