Cleaning device and cleaning system

Abstract

The utility model discloses cleaning equipment and a cleaning system, and relates to the technical field of cleaning equipment, the cleaning equipment is used for flame retardance of a battery pack in the cleaning equipment, the cleaning equipment comprises an equipment body, the battery pack, a cleaning assembly and a fireproof part, and the battery pack is arranged on the equipment body. The cleaning assembly is arranged on the equipment body and used for making contact with a to-be-cleaned face, and the battery pack is electrically connected with the cleaning assembly. The fireproof part is arranged on the equipment main body and is close to the battery pack, and the fireproof part releases flame-retardant gas to the battery pack in response to the temperature rise of the battery pack. The cleaning equipment is used for cleaning the surface to be cleaned.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and more particularly to a cleaning device and a cleaning system. Background Technology

[0002] With the development of technology, cleaning equipment is increasingly entering people's lives. For example, cleaning equipment can include sweeping and mopping robots.

[0003] In related technologies, the cleaning equipment contains a battery pack that provides power to the entire cleaning equipment. However, during the operation of the cleaning equipment, the battery pack may catch fire, which would pose a safety hazard. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a cleaning device and a cleaning system for flame-retardant cleaning of the battery pack inside the cleaning device, thereby ensuring the overall safety of the cleaning device.

[0005] This application is achieved through the following technical solution.

[0006] This application provides a cleaning device, comprising a device body, a battery pack, a cleaning component, and a fire-retardant component. The battery pack is disposed in the device body. The cleaning component is disposed in the device body and is used to contact the surface to be cleaned. The battery pack is electrically connected to the cleaning component. The fire-retardant component is disposed in the device body and is close to the battery pack. The fire-retardant component releases a flame-retardant gas into the battery pack in response to an increase in the temperature of the battery pack.

[0007] In the technical solution of this application embodiment, the main body of the device provides support for the battery pack, cleaning components, and fireproof components. The battery pack provides power to the cleaning components. During cleaning, the main body of the device can move on the surface to be cleaned. During the movement, the cleaning components clean the surface to be cleaned, thereby meeting the cleaning requirements. Since the fireproof components are located close to the battery pack, when the battery pack temperature rises, the fireproof components can release flame-retardant gas into the battery pack in response to the temperature increase, preventing the battery pack from burning due to the temperature rise. This avoids a larger safety accident caused by the high temperature combustion of the battery pack, thereby improving the overall reliability of the cleaning equipment.

[0008] In some embodiments of this application, the fire-retardant material includes at least one of sodium azide, ammonium nitrate, and ammonium phosphate.

[0009] In this way, when the battery pack temperature rises, at least one of the sodium azide, ammonium nitrate and ammonium phosphate salts in the fireproof component will be heated in the high temperature environment to release gases such as nitrogen and ammonia. Nitrogen and ammonia can not only dilute the oxygen near the battery pack to reduce the probability of the battery pack burning due to the temperature rise, but also lower the temperature of the battery pack, so as to exert the flame retardant effect in multiple ways.

[0010] In some embodiments of this application, the fireproof component has an internal receiving space, and the battery is contained within the receiving space.

[0011] In this way, the entire battery pack is enclosed within the fire-resistant components. When the battery pack temperature rises, the fire-resistant components can release flame-retardant gases from all directions of the battery pack, thereby achieving a better flame-retardant effect. In addition, the fire-resistant components can also provide physical protection for the battery pack.

[0012] In some embodiments of this application, the main body of the device includes a chassis and a battery compartment. The battery compartment is supported by the chassis, and the battery pack is placed inside the battery compartment. The fireproof component releases flame-retardant gas into the battery compartment in response to the increase in the temperature of the battery pack.

[0013] In this way, the chassis can support the battery pack, and the battery compartment can house the battery pack for physical protection. On this basis, the flame-retardant gas released by the fireproof components can enter the battery compartment, thereby retarding the battery pack within the battery compartment area, better controlling the combustion range, improving fire prevention effect, and reducing the impact of safety accidents.

[0014] In some embodiments of this application, the fireproof component is a fireproof coating disposed inside the battery compartment, and the fireproof coating is applied to the inner wall surface of the battery compartment.

[0015] With this design, the fire-retardant coating applied to the inner wall of the battery compartment allows for faster release of flame-retardant gases into the compartment, suppressing any potential combustion reactions. Furthermore, the fire-retardant coating also protects the battery compartment, further reducing the damage caused by combustion.

[0016] In some embodiments of this application, the inner wall of the battery compartment has a receiving hole, and a fireproof component is disposed inside the receiving hole.

[0017] With this configuration, since the receiving hole is connected to the inside of the battery compartment, the fireproof component can respond quickly when the battery pack temperature rises and release flame-retardant gas into the battery compartment. Since the fireproof component is located inside the receiving hole, the hole can be opened at a suitable position on the inner wall of the battery compartment according to fire protection requirements, which has strong adjustability.

[0018] In some embodiments of this application, there are multiple receiving holes and fireproof components, and they are correspondingly arranged. The fireproof components are disposed inside the corresponding receiving holes, and the multiple receiving holes are arranged around the battery pack or evenly distributed on the inner wall of the battery compartment.

[0019] In this way, when multiple receiving holes are arranged around the battery pack, the receiving holes can release flame-retardant gas from around the battery pack into the battery compartment. When multiple receiving holes are evenly distributed on the inner wall of the battery compartment, flame-retardant gas can be released from all four sides of the battery pack into the battery compartment. Both arrangements can achieve good flame-retardant effects.

[0020] In some embodiments of this application, the cleaning device further includes a housing box disposed inside the battery compartment, and a fire-retardant component disposed inside the housing box. When the fire-retardant component releases flame-retardant gas in response to an increase in the battery pack temperature, the housing box communicates with the interior of the battery compartment.

[0021] With this configuration, when the battery pack temperature rises, the fire-retardant component inside the housing can release flame-retardant gas into the battery compartment to exert a flame-retardant effect. Since the fire-retardant component is located inside the housing, the housing can protect the fire-retardant component to prevent accidental contact with it.

[0022] In some embodiments of this application, the battery compartment includes a bottom shell and a cover plate. The bottom shell is supported by a chassis, and the cover plate is fastened to the bottom shell, forming a cavity with the bottom shell to accommodate the battery pack.

[0023] With this design, the battery compartment can consist of a bottom shell and a cover, which facilitates the installation of the battery pack.

[0024] In some embodiments of this application, the battery pack includes a pressure relief mechanism, and the fireproof element is at least partially located on the pressure relief path of the pressure relief mechanism.

[0025] With this configuration, the pressure relief mechanism on the battery pack will release pressure when the battery pack temperature rises. This makes the combustion reaction more likely to occur at the pressure relief mechanism. Therefore, placing the fireproof component on the pressure relief path of the pressure relief mechanism can release the flame-retardant gas to the pressure relief mechanism more quickly, thereby achieving a better flame-retardant effect and reducing the impact of accidents.

[0026] In some embodiments of this application, the battery pack includes individual battery cells, and the fireproof component is at least partially located on the side where the battery cell terminals are located.

[0027] With this configuration, the temperature of the battery cells' terminals inside the battery pack is more likely to rise and ignite when the battery pack temperature rises. Therefore, placing the fireproof component on the side where the battery cell terminals are located can quickly release the flame-retardant gas to the vicinity of the terminals, thereby achieving a better flame-retardant effect and reducing the impact of accidents.

[0028] In some embodiments of this application, the cleaning device further includes a first waterproof structure disposed on the surface of the fireproof component to prevent liquid from contacting the fireproof component.

[0029] With this design, the first waterproof structure can prevent liquid from coming into contact with the fireproof component, thereby preventing the fireproof component from getting damp or reacting with the liquid and affecting its ability to generate flame-retardant gas, thus ensuring the fireproof effect of the fireproof component.

[0030] In some embodiments of this application, the first waterproof structure includes a barrier layer that covers the surface of the fireproof component to isolate the liquid from the fireproof component.

[0031] With this configuration, the barrier layer can be wrapped around the surface of the fireproof component to isolate the liquid from the fireproof component, thereby preventing the liquid from coming into contact with the fireproof component and ensuring the performance of the fireproof component in releasing flame-retardant gases.

[0032] In some embodiments of this application, the cleaning device further includes a wet cleaning module and a second waterproof structure, the second waterproof structure being disposed between the wet cleaning module and the fireproof component.

[0033] With this design, the second waterproof structure can separate the fireproof component from the wet cleaning module, thereby preventing liquid from the wet cleaning module from flowing to the location of the fireproof component. This prevents the fireproof component from getting damp or reacting with the liquid, which would affect its ability to generate flame-retardant gases and ensure the fireproof effect of the fireproof component.

[0034] A second aspect of this application provides a cleaning system, including a base station and the cleaning equipment in any of the above embodiments, wherein the base station is used to dock the cleaning equipment.

[0035] In the technical solutions of this application embodiment, since the cleaning equipment in any of the above embodiments is included, the same beneficial effects can be obtained. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 A top view schematic diagram of a cleaning device provided for some embodiments of this application;

[0038] Figure 2 A schematic diagram of the external structure of a cleaning device provided for some embodiments of this application;

[0039] Figure 3 An exploded view of a cleaning device provided for some embodiments of this application;

[0040] Figure 4 A cross-sectional schematic diagram of a battery compartment, battery pack, and fireproof component provided for some embodiments of this application;

[0041] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle;

[0042] Figure 6 Another cross-sectional schematic diagram of the battery compartment, battery pack, and fireproof component provided for some embodiments of this application;

[0043] Figure 7 Another cross-sectional schematic diagram of a battery compartment, battery pack, and fireproof component provided for some embodiments of this application;

[0044] Figure 8 Another cross-sectional schematic diagram of a battery compartment, battery pack, and fireproof component provided for some embodiments of this application;

[0045] Figure 9 A cross-sectional schematic diagram of a battery compartment, battery pack, fireproof component, and first waterproof structure provided for some embodiments of this application;

[0046] Figure 10 Another top view schematic diagram of a cleaning device provided for some embodiments of this application.

[0047] Explanation of reference numerals in the attached figures

[0048] 1-Cleaning equipment; 11-Equipment body; b-First space; c-Second space; 111-Chassis; 112-Battery compartment; 1121-Bottom shell; 1122-Cover plate; 12-Battery pack; 121-Pressure relief mechanism; 122-Battery cell; 13-Fireproof component; 131-Fireproof coating; a-Accommodation hole; 14-Accommodation box; 15-Cleaning components; 151-Dust removal module; 16-First waterproof structure; 17-Wet cleaning module; 171-Mop module; 172-Liquid storage tank; 18-Second waterproof structure. Detailed Implementation

[0049] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0051] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0052] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0053] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0054] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0055] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0057] The following is a detailed description of this application.

[0058] With the development of technology, cleaning equipment has been widely used in daily life, providing great convenience to people's lives. For example, cleaning equipment can include robot vacuum cleaners and robot vacuum and mop cleaning robots.

[0059] Based on this, this application provides a cleaning system, which includes cleaning equipment and a base station, the base station being used to dock the cleaning equipment.

[0060] It is understandable that the cleaning equipment can be self-moving cleaning equipment, which refers to equipment that automatically performs cleaning operations in a certain area to be cleaned without user operation.

[0061] With the cooperation of base stations and cleaning equipment, the cleaning equipment departs from the base station to carry out cleaning tasks when necessary. After completing the cleaning task, the cleaning equipment docks at the base station, where it can perform operations such as charging, water replenishment, cleaning, and dust collection.

[0062] Based on this, such as Figure 1 As shown, this application also provides a cleaning device 1, which includes a device body 11 and a battery pack 12. The battery pack 12 is disposed on the device body 11 and provides power to the electrical components of the cleaning device 1 to ensure the normal operation of the entire cleaning device 1.

[0063] The battery pack 12 can be located inside the main body 11 of the device, so that the main body 11 of the device can provide physical protection for the battery pack 12.

[0064] In some examples, the cleaning device 1 also includes a cleaning component 15 disposed on the device body 11 and used to contact the surface to be cleaned, and the battery pack 12 is electrically connected to the cleaning component 15.

[0065] In some examples, at least a portion of the cleaning component 15 can be positioned in front of the battery pack 12 along the forward direction of the cleaning device 1. This means the cleaning component 15 is at least partially forward-positioned, ensuring it contacts the surface to be cleaned first and preventing blind spots caused by the battery pack 12. Furthermore, since the battery pack 12 is relatively heavy, it conforms to the principle of "lighter in front, heavier in back." When the cleaning device 1 climbs slopes or overcomes obstacles, the rearward shift of the center of gravity effectively prevents it from tilting backward and increases its grip.

[0066] In some examples, the cleaning component 15 includes a dust removal module 151, which may include components such as an air duct and a fan. The air duct is connected to the air inlet of the fan, and the air inlet of the air duct can absorb dust from the surface to be cleaned. Thus, when the fan is started, the dust on the surface to be cleaned can enter the air duct. To collect dust and improve the dust removal effect on the surface to be cleaned, the dust removal module 151 also includes a roller brush and a dust collection box. The roller brush is located on the main body 11 of the device, and the air inlet of the air duct is connected to the dust collection box. The roller brush is located at the air inlet of the dust collection box and can contact the surface to be cleaned. Thus, during dust removal, the roller brush can sweep away the dust on the surface to be cleaned by moving relative to it. Then, under the action of the fan, the dust will enter the dust collection box. After a certain amount of dust is collected in the dust collection box, the dust in the dust collection box can be cleaned.

[0067] In other embodiments, the cleaning device 1 may also include a sensing system, a control system, a motion system (e.g., it may include multiple rollers mounted on the bottom of the device body 11 and roller drive devices), and a human-computer interaction system (e.g., it may include voice control interaction, motion interaction, virtual reality input, etc.). These systems coordinate with the cleaning component 15 and the battery pack 12 to enable the cleaning device 1 to move autonomously and perform its cleaning function.

[0068] With the above configuration, the battery pack 12 can provide power for the operation of the cleaning component 15, the sensing system, the control system, the motion system, etc. The cooperation between the cleaning component 15, the sensing system, the control system, and the motion system can clean the surface to be cleaned, so as to realize the cleaning function of the cleaning device 1.

[0069] In related technologies, the battery pack 12 may catch fire during the operation of the cleaning equipment 1, which would pose a safety hazard.

[0070] Based on this, such as Figure 1 , Figure 2 As shown, the cleaning device 1 provided in this application also includes a fireproof component 13, which is disposed on the main body 11 of the device and close to the battery pack 12. The fireproof component 13 releases flame-retardant gas into the battery pack 12 in response to the increase in temperature of the battery pack 12.

[0071] In some examples, the fire-retardant component 13 releases a flame-retardant gas into the battery pack 12 in response to the battery pack 12 temperature rising to a first threshold. The first threshold can be determined by monitoring the temperature changes of the battery pack 12 during operation.

[0072] For example, the first threshold may be the temperature value at which the battery pack 12 is at the critical point of combustion due to high temperature.

[0073] In some examples, the fire retardant 13 releasing flame-retardant gas to the battery pack 12 in response to an increase in the temperature of the battery pack 12 may be in response to an electrical signal or temperature signal generated by the increase in the temperature of the battery pack 12.

[0074] For example, the material of the fire-retardant component 13 may react in response to the temperature of the battery pack 12 reaching a first threshold, releasing a flame-retardant gas.

[0075] Alternatively, the fire-retardant component may include a triggering structure that is activated in response to the battery pack 12 reaching a first threshold temperature to release flame-retardant gas.

[0076] In some examples, the main body 11 of the device can be disc-shaped, which not only improves the space utilization within the main body 11, but also avoids the risk of right-angle collisions with the main body 11, thus meeting safety standards.

[0077] In some examples, the battery pack 12 may include one or more battery cell assemblies, which provide voltage and capacity. A battery cell assembly includes multiple battery cells 122, which are connected together in series, parallel, or a combination of series and parallel connections via a busbar.

[0078] Among them, the battery cell 122 can be a secondary battery, which refers to the battery cell 122 that can be used again after being discharged by recharging to activate the active materials.

[0079] In addition, the battery cell 122 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0080] In some examples, the flame-retardant gas can be an inert gas, for example, at least one of carbon dioxide, nitrogen, argon, etc.

[0081] With the above configuration, the main body 11 provides support and protection for the battery pack 12 and the fireproof component 13. The main body 11 can move to clean the surface to be cleaned using the cleaning components 15 on the main body 11, thereby meeting the cleaning requirements. Since the fireproof component 13 is located close to the battery pack 12, when the temperature of the battery pack 12 rises, the fireproof component 13 can release flame-retardant gas into the battery pack 12 in response to the temperature increase, thereby preventing the battery pack 12 from burning due to the temperature rise, thus avoiding a larger safety accident caused by the high temperature combustion of the battery pack 12, and improving the overall reliability of the cleaning equipment 1.

[0082] In some embodiments, the material of the fireproof component 13 includes at least one of sodium azide, ammonium nitrate, and ammonium phosphate.

[0083] It is understandable that sodium azide and ammonium nitrate decompose upon heating, releasing nitrogen gas. This nitrogen gas can exert a flame-retardant effect by diluting the oxygen around the battery pack 12 and lowering its temperature. Similarly, ammonium phosphate decomposes upon heating, releasing ammonia gas, which can also dilute the oxygen around the battery pack 12 and thus exert a flame-retardant effect.

[0084] In other words, the fireproof component 13 will decompose at least one of nitrogen and ammonia in response to the increase in temperature of the battery pack 12, so as to exert a flame-retardant effect.

[0085] In some examples, the fire-retardant component 13 is made of sodium azide and iron oxide. When the battery pack 12 is at a high temperature, the sodium azide and iron oxide react to release nitrogen gas. The nitrogen gas can exert a flame-retardant effect by diluting the oxygen around the battery pack 12 and lowering the temperature of the battery pack 12. See the chemical reaction formula below for details:

[0086] 6NaN3+Fe2O3=2Fe+3Na2O3+9N2↑

[0087] For example, according to the stoichiometric ratio in the chemical reaction equation, the ratio of sodium azide to iron oxide in the fire-retardant component 13 is 6:1. This ensures that the sodium azide and iron oxide react fully, avoids excess raw materials, generates sufficient nitrogen gas, and guarantees the flame-retardant effect.

[0088] With the above settings, when the temperature of the battery pack 12 rises, at least one of the sodium azide, ammonium nitrate and ammonium phosphate salts in the fireproof component 13 will be heated in a high-temperature environment to release gases such as nitrogen and ammonia. The nitrogen and ammonia can not only dilute the oxygen near the battery pack 12 to reduce the probability of the battery pack 12 burning due to the temperature rise, but also reduce the temperature of the battery pack 12, so as to exert a flame-retardant effect in multiple ways.

[0089] In some embodiments, such as Figure 3 As shown, the main body of the device 11 includes a chassis 111 and a battery compartment 112. The battery compartment 112 is supported by the chassis 111, and the battery pack 12 is housed inside the battery compartment 112. The fireproof component 13 releases flame-retardant gas into the battery compartment 112 in response to the increase in temperature of the battery pack 12.

[0090] In some examples, the chassis 111 is generally circular and flat, and the chassis 111 is used to support the battery compartment 112, which is used to load the battery pack 12 for protection.

[0091] The shape of the cavity inside the battery compartment 112 can match the shape of the battery pack 12. In this way, the battery compartment 112 can not only provide physical protection for the battery pack 12, but also save space as much as possible. For example, if the shape of the battery pack 12 is square, the shape of the cavity inside the battery compartment 112 is also square. The two match to achieve a stable setting of the battery pack 12.

[0092] With the above configuration, the chassis 111 can support the battery pack 12, and the battery compartment 112 can accommodate the battery pack 12 to provide physical protection for the battery pack 12. On this basis, the flame-retardant gas released by the fireproof component 13 can enter the battery compartment 112, thereby providing flame retardancy to the battery pack 12 within the area of ​​the battery compartment 112. This can better control the combustion range, improve the fire prevention effect, and reduce the impact of safety accidents.

[0093] In some embodiments, such as Figure 3 As shown, the battery compartment 112 includes a bottom shell 1121 and a cover plate 1122. The bottom shell 1121 is supported by the chassis 111, and the cover plate 1122 is fastened to the bottom shell 1121, forming a cavity with the bottom shell 1121 to accommodate the battery pack 12.

[0094] It is understandable that a loading and unloading opening is formed on the bottom shell 1121, and the cover plate 1122 covers the loading and unloading opening to form a battery compartment 112 with the bottom shell 1121.

[0095] In some examples, the bottom shell 1121 and the cover plate 1122 are detachably connected, so that when it is necessary to place the battery pack 12 or remove the battery pack 12 from the battery compartment 112, the bottom shell 1121 and the cover plate 1122 can be separated to open the access port, thereby enabling the battery pack 12 to be placed or removed.

[0096] The bottom shell 1121 and the cover plate 1122 can be detachably connected by means of screw fastening or snap-fitting.

[0097] In some examples, the cover plate 1122 is located on the side of the bottom shell 1121 facing the surface to be cleaned, that is, the bottom of the bottom shell 1121. Since there are not many parts at the bottom of the bottom shell 1121, it is easy to disassemble and install the cover plate 1122 and the bottom shell 1121, which facilitates actual operation.

[0098] With the above configuration, the battery compartment 112 includes two parts: a bottom shell 1121 and a cover plate 1122. After the battery pack 12 is placed inside the bottom shell 1121, the cover plate 1122 is then fastened to the bottom shell 1121 to encapsulate the battery pack 12, which facilitates the installation of the battery pack 12.

[0099] When the fire-retardant component 13 releases flame-retardant gas in response to an increase in the temperature of the battery pack 12, the flame-retardant gas can enter the interior of the battery compartment 112 through various pathways. A detailed description follows.

[0100] In some embodiments, such as Figure 4 As shown, the fireproof component 13 is a fireproof coating 131 disposed inside the battery compartment 112, and the fireproof coating 131 is coated on the inner wall surface of the battery compartment 112.

[0101] In some examples, where the material of the fire-retardant 13 includes at least one of sodium azide, ammonium nitrate and ammonium phosphate, one or more of the above materials can be mixed with a colloid to form an adhesive fire-retardant 13, and then the adhesive fire-retardant 13 is applied to the inside of the battery compartment 112 to form a fire-retardant coating 131.

[0102] In some examples, the fire-retardant coating 131 can cover the entire inner wall of the battery compartment 112, so that no matter where the temperature of the battery pack 12 rises, the fire-retardant coating 131 can respond quickly and generate flame-retardant gas into the battery compartment 112, thus ensuring the sensitivity and reliability of flame retardancy.

[0103] With the above configuration, since the fire-retardant coating 131 is applied to the inner wall of the battery compartment 112, the flame-retardant gas can be released into the battery compartment 112 more quickly to suppress the combustion reaction that may occur due to high temperature. Moreover, the fire-retardant coating 131 can also protect the battery compartment 112 to further reduce the damage caused by combustion.

[0104] In some embodiments, such as Figure 5 As shown, the inner wall of the battery compartment 112 has a receiving hole a, and the fireproof component 13 is disposed inside the receiving hole a.

[0105] The fireproof component 13 is installed in the receiving hole a, and can be fixed by means of adhesive, screw fastening or snap-fitting.

[0106] Alternatively, the receiving hole a can be a through hole that penetrates the battery compartment 112, or it can be a blind hole set on the inner wall of the battery compartment 112. The specific setting can be selected according to the needs.

[0107] Alternatively, the fireproof component 13 can either fill the receiving hole a, or it can occupy only a portion of the receiving hole a. The choice can be made based on specific needs.

[0108] In some examples, the shape of the receiving hole a can be a regular shape such as a circle or a square. Of course, the shape of the receiving hole a can also be an irregular shape.

[0109] With the above configuration, since the receiving hole a is connected to the inside of the battery compartment 112, the fireproof component 13 can respond quickly when the temperature of the battery pack 12 rises and release flame-retardant gas into the battery compartment 112. Since the fireproof component 13 is located in the receiving hole a, it can be opened at a suitable position on the inner wall of the battery compartment 112 according to fire protection requirements, and has strong adjustability.

[0110] In some embodiments, such as Figure 5 As shown, there are multiple accommodating holes a and fireproof components 13, and they are set accordingly. The fireproof components 13 are set inside the corresponding accommodating holes a. Multiple accommodating holes a are arranged around the battery pack 12 or evenly distributed on the inner wall of the battery compartment 112.

[0111] It is understandable that the number and diameter of the receiving holes a should be determined based on the number of receiving holes a and the surface area of ​​the battery compartment 112, and can be set according to the actual working conditions.

[0112] In this configuration, multiple fireproof components 13 can be installed one-to-one with multiple receiving holes a, so that only one fireproof component 13 is installed in each receiving hole a. Alternatively, multiple fireproof components 13 can be installed in one receiving hole a.

[0113] With the above configuration, when multiple receiving holes a are arranged around the battery pack 12, the receiving holes a can release flame-retardant gas from around the battery pack 12 into the battery compartment 112. When multiple receiving holes a are evenly distributed on the inner wall of the battery compartment 112, flame-retardant gas can be released from all four sides of the battery pack 12 into the battery compartment 112. Both configurations can achieve good flame-retardant effects.

[0114] In some embodiments, such as Figure 6 As shown, the cleaning device 1 also includes a housing 14, which is disposed inside the battery compartment 112, and a fire-retardant component 13 is disposed inside the housing 14. When the fire-retardant component 13 releases flame-retardant gas in response to an increase in the temperature of the battery pack 12, the housing 14 is in communication with the interior of the battery compartment 112.

[0115] The shape of the accommodating box 14 can be selected as needed, for example, it can be a regular shape such as a cube or a cylinder, or it can be an irregular shape.

[0116] In some examples, the housing 14 can always be in communication with the interior of the battery compartment 112, for example, by having an opening in the side wall of the housing 14 through which the housing 14 communicates with the interior of the battery compartment 112. Thus, when the fireproof component 13 releases combustion gases in response to an increase in the temperature of the battery pack 12, the combustion gases will enter the interior of the battery compartment 112 through the opening, thereby retardant the flame.

[0117] In other examples, when the battery pack 12 is not in a state of temperature rise, the housing 14 is in a closed state. However, when the battery pack 12 is in a state of temperature rise, the housing 14 can melt at high temperature, thereby exposing the fireproof component 13 inside the battery compartment 112. At this time, the fireproof component 13 responds to the combustion of the battery pack 12 by releasing flame-retardant gas into the battery compartment 112, thereby achieving flame retardancy.

[0118] With the above settings, when the temperature of the battery pack 12 rises, the fireproof component 13 in the housing box 14 can release flame-retardant gas into the battery compartment 112 to exert a flame-retardant effect. Since the fireproof component 13 is located in the housing box 14, the housing box 14 can protect the fireproof component 13 to avoid accidental contact with the fireproof component 13.

[0119] In some embodiments, the fireproof component 13 has an internal receiving space, and the battery pack 12 is housed within the receiving space.

[0120] In some examples, after the battery pack 12 is placed in the receiving space, the fireproof component 13 covers the entire battery pack 12, so that the fireproof component 13 can be in close contact with the battery pack 12. Once the temperature of the battery pack 12 rises, the fireproof component 13 can immediately respond and release flame-retardant gas into the battery pack 12.

[0121] In some examples, the fireproof component 13 can be manufactured to resemble the structure of the battery compartment 112, so that the fireproof component 13 can replace the battery compartment 112. For example, the material of the battery compartment 112 can be replaced with the material of the fireproof component 13 to achieve flame retardancy of the battery pack 12.

[0122] With the above configuration, the entire battery pack 12 is contained within the fireproof component 13. When the temperature of the battery pack 12 rises, the fireproof component 13 can release flame-retardant gases from all four sides and eight directions of the battery pack 12, thereby achieving a better flame-retardant effect. In addition, the fireproof component 13 can also provide physical protection for the battery pack 12.

[0123] In some embodiments, such as Figure 7 As shown, the battery pack 12 includes a pressure relief mechanism 121, and the fireproof component 13 is at least partially located on the pressure relief path of the pressure relief mechanism 121.

[0124] In some examples, when the pressure relief mechanism 121 is located at the bottom of the battery pack 12 and the pressure relief mechanism 121 is depressurized toward the side where the surface to be cleaned is located, the fireproof component 13 is at least partially located below the pressure relief mechanism 121 to respond precisely and quickly to the increase in temperature of the pressure relief mechanism 121 of the battery pack 12, thereby releasing the flame-retardant gas.

[0125] With the above settings, when the temperature of the battery pack 12 rises, the pressure relief mechanism 121 on the battery pack 12 will release pressure, making it easier for a combustion reaction to occur at the pressure relief mechanism 121. Therefore, by placing the fireproof component 13 on the pressure relief path of the pressure relief mechanism 121, the flame-retardant gas can be released to the pressure relief mechanism 121 more quickly, which can achieve a better flame-retardant effect and reduce the impact of accidents.

[0126] In some embodiments, such as Figure 8 The battery pack 12 includes a battery cell 122, and the fireproof component 13 is at least partially located on the side where the battery cell 122 is located.

[0127] It is understood that the battery pack 12 generally includes multiple stacked battery cells 122, which are stacked to form a battery cell assembly. The terminals of the battery cells 122 within the battery cell assembly are generally located on the same side and are electrically connected together through a busbar.

[0128] With the above settings, since the temperature of the battery cell 122 inside the battery pack 12 is more likely to rise and burn when the temperature of the battery pack 12 rises, the fireproof component 13 is placed on the side where the battery cell 122 is located, which can quickly release the flame-retardant gas to the vicinity of the terminal, thereby achieving a better flame-retardant effect and reducing the impact of accidents.

[0129] The cleaning equipment 1 may be used in humid or water-related environments, therefore the fire-resistant component 13 needs to be specially designed. A detailed description follows.

[0130] In some embodiments, such as Figure 9 As shown, the cleaning device 1 also includes a first waterproof structure 16, which is disposed on the surface of the fireproof component 13 to prevent liquid from contacting the fireproof component 13.

[0131] It is understandable that the installation of the first waterproof structure 16 should not affect the fireproof component 13 from releasing flame-retardant gas in response to the increase in temperature of the battery pack 12. In other words, after the installation of the first waterproof structure 16, the fireproof component 13 can still release flame-retardant gas to the battery pack 12.

[0132] With the above configuration, the first waterproof structure 16 can prevent liquid from coming into contact with the fireproof component 13, thereby preventing the fireproof component 13 from getting damp or reacting with the liquid and affecting its ability to generate flame-retardant gas, thus ensuring the fireproof effect of the fireproof component 13.

[0133] In some embodiments, such as Figure 9 As shown, the first waterproof structure 16 includes a barrier layer that covers the surface of the fireproof component 13 to isolate the liquid from the fireproof component 13.

[0134] Ideally, the barrier layer should not have a heat insulation effect, so as to ensure that the fireproof component 13 can respond normally and quickly to the temperature rise of the battery pack 12. Of course, the barrier layer can also have a certain heat insulation effect, but the heat insulation effect should be controlled to a certain extent. For example, when the temperature of the battery pack 12 rises to the critical point of combustion, the fireproof component 13 can respond to the temperature and release flame-retardant gas.

[0135] In addition, the barrier layer can be made of a non-absorbent material, such as metal or wood, so that the barrier layer can directly isolate the liquid from the outside, thereby preventing the liquid from coming into contact with the fireproof component 13.

[0136] Alternatively, the barrier layer can be made of a liquid-absorbing material, such as a sponge, and the liquid absorbed by the barrier layer must remain inside the barrier layer and not penetrate into the fireproof component 13. In this way, when the liquid approaches the fireproof component 13, the barrier layer will absorb the liquid, and over time, the liquid inside the barrier layer will evaporate, thereby preventing the liquid from contacting the fireproof component 13.

[0137] In some examples, when the fireproof component 13 includes a fireproof coating 131, a barrier layer covers the surface of the fireproof coating 131 facing away from the inner wall of the battery compartment 112, that is, the fireproof coating 131 is sandwiched between the battery compartment 112 and the barrier layer. In this case, in order to ensure that the flame-retardant gas can enter the battery compartment 112 normally, the flame-retardant gas needs to break through the barrier layer.

[0138] In other examples, where the fireproof component 13 has an internal receiving space and the battery pack 12 is housed within the receiving space, a barrier layer covers at least one of the outer surface of the fireproof component 13 facing away from the battery pack 12 and the inner surface of the fireproof component 13 facing the battery pack 12. In this case, in order to ensure that the flame-retardant gas can normally enter the battery compartment 112, the flame-retardant gas needs to be able to break through the barrier layer covering the inner surface of the fireproof component 13 facing the battery pack 12.

[0139] With the above configuration, the barrier layer can cover the entire surface of the fireproof component 13, thereby isolating the liquid from the fireproof component 13 and preventing the liquid from contacting the fireproof component 13. This ensures the performance of the fireproof component 13 in releasing flame-retardant gases and improves the overall reliability of the cleaning equipment 1.

[0140] In some embodiments, such as Figure 10 As shown, the cleaning device 1 also includes a wet cleaning module 17 and a second waterproof structure 18, which is disposed between the wet cleaning module 17 and the fireproof component 13.

[0141] The second waterproof structure 18 can be a partition plate or a partition membrane, etc.

[0142] For example, the second waterproof structure 18 is provided on the main body 11 of the device to divide the main body 11 into an independent first space b and a second space c. The battery pack 12 and the fireproof component 13 are located in the first space b, and the wet cleaning module 17 is located in the second space c. This arrangement, with the battery pack 12 and the fireproof component 13 located in different spaces from the wet cleaning module 17, not only prevents liquid from the wet cleaning module 17 from flowing to the locations of the battery pack 12 and the fireproof component 13, thus preventing the fireproof component 13 from getting damp or reacting with the liquid and affecting its ability to generate flame-retardant gas, ensuring the fireproof effect of the fireproof component 13, but also prevents the battery pack 12 from getting damp.

[0143] In some examples, the wet cleaning module 17 may include a mop module 171 and a liquid tank 172. The mop module 171 includes a connected drive component and a mop. The drive component and the liquid tank 172 are located on the device body 11. The mop is supported on the bottom of the device body 11. The drive component is electrically connected to the battery pack 12 to control the movement of the mop to clean the surface to be cleaned. The liquid tank 172 provides cleaning liquid for the mop.

[0144] The cleaning liquid can include any of the following: water or liquid containing cleaning ingredients, depending on the specific needs.

[0145] In addition, the cleaning liquid in the reservoir 172 can be used to wet the surface to be cleaned or to clean the mop, etc.

[0146] For example, when cleaning equipment 1 needs to perform a cleaning task, cleaning equipment 1 drives out of the base station. During the cleaning process, the cleaning liquid in the storage tank can be discharged to the surface to be cleaned so that the mop can clean the surface.

[0147] For example, if the cleaning device 1 is located inside the base station, the cleaning liquid can be discharged to the inner side of the mop to clean the inner side of the mop. In this way, by cooperating with the cleaning device inside the base station that cleans the outer side of the mop, the mop can be thoroughly cleaned.

[0148] For example, there are two mop modules, including a left mop module and a right mop module. The mop of the left mop module can be positioned outside the area covered by the main body 11 of the device, which makes it easier to clean corners and edges.

[0149] The second waterproof structure 18 may include a metal partition, a nanofiber partition, or an activated carbon composite partition, etc.

[0150] Through the above-described configuration, the second waterproof structure 18 separates the fireproof component 13 from the wet cleaning module 17, thereby preventing liquid on the wet cleaning module 17 from flowing towards the location of the fireproof component 13. This prevents the fireproof component 13 from becoming damp or reacting with the liquid, thus affecting its ability to generate flame-retardant gas and ensuring the fireproof effect of the fireproof component 13. The second waterproof structure 18 also reduces the probability of liquid approaching the fireproof component 13 from the perspective of the overall internal layout of the cleaning equipment 1, thereby ensuring the fireproof component 13's ability to release flame-retardant gas.

[0151] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A cleaning apparatus, characterized by, The cleaning device (1) comprises: a device body (11); a battery pack (12) arranged in the device body (11); a cleaning assembly (15) arranged in the device body (11) and configured to contact a surface to be cleaned, the battery pack (12) being electrically connected to the cleaning assembly (15); a fireproof member (13) arranged in the device body (11) and close to the battery pack (12), the fireproof member (13) being configured to release fire-retardant gas to the battery pack (12) in response to an increase in temperature of the battery pack (12).

2. The cleaning apparatus of claim 1, wherein, The fireproof member (13) is made of at least one of sodium azide, ammonium nitrate, and ammonium phosphate.

3. The cleaning apparatus according to claim 1 or 2, characterized in that, The fireproof member (13) has an accommodation space inside, and the battery pack (12) is accommodated in the accommodation space.

4. The cleaning apparatus according to claim 1 or 2, characterized in that, The device body (11) comprises a chassis (111) and a battery compartment (112) carried on the chassis (111), the battery pack (12) is accommodated in the battery compartment (112), and the fireproof member (13) releases fire-retardant gas into the battery compartment (112) in response to an increase in temperature of the battery pack (12).

5. The cleaning apparatus of claim 4, wherein, The fireproof member (13) is a fireproof coating (131) arranged in the battery compartment (112), and the fireproof coating (131) is coated on an inner wall surface of the battery compartment (112).

6. The cleaning apparatus of claim 4, wherein, The battery compartment (112) has accommodating holes (a) on the inner wall surface, and the fireproof member (13) is arranged in the accommodating holes (a).

7. The cleaning apparatus of claim 6, wherein, The number of the accommodating holes (a) and the fireproof members (13) is plural, and they are arranged correspondingly, the fireproof member (13) is arranged in the corresponding accommodating hole (a), and the plurality of accommodating holes (a) are arranged around the battery pack (12) or are uniformly distributed on the inner wall surface of the battery compartment (112).

8. The cleaning apparatus of claim 4, wherein, The cleaning device (1) further comprises an accommodating box (14) arranged in the battery compartment (112), and the fireproof member (13) is arranged in the accommodating box (14); in the case that the fireproof member (13) releases fire-retardant gas in response to an increase in temperature of the battery pack (12), the accommodating box (14) is in communication with the inside of the battery compartment (112).

9. The cleaning apparatus of claim 4, wherein, The battery compartment (112) comprises a bottom shell (1121) and a cover plate (1122), the bottom shell (1121) is carried on the chassis (111), and the cover plate (1122) is buckled on the bottom shell (1121) and forms a cavity for accommodating the battery pack (12) with the bottom shell (1121).

10. The cleaning apparatus according to claim 1 or 2, characterized in that, The battery pack (12) comprises a pressure relief mechanism (121), and the fireproof member (13) is at least partially located on a pressure relief path of the pressure relief mechanism (121).

11. The cleaning apparatus according to claim 1 or 2, characterized in that, The battery pack (12) further comprises a battery cell (122), and the fireproof member (13) is at least partially located on a side where a pole of the battery cell (122) is located.

12. The cleaning apparatus of claim 1 or 2, wherein, The cleaning device (1) further comprises a first waterproof structure (16) arranged on the surface of the fireproof member (13) for preventing liquid from contacting the fireproof member (13).

13. The cleaning device according to claim 12, characterized in that, The first waterproof structure (16) comprises a barrier layer wrapped on the surface of the fireproof member (13) for isolating liquid from the fireproof member (13).

14. The cleaning apparatus of claim 1 or 2, wherein, The cleaning device (1) further comprises a wet cleaning module (17) and a second waterproof structure (18) arranged between the wet cleaning module (17) and the fireproof member (13).

15. A cleaning system characterized by, A base station for parking the cleaning device (1) is comprised, and the cleaning device (1) is according to any one of claims 1-14.

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