Cleaning device and cleaning system

Abstract

The invention discloses cleaning equipment and a cleaning system, relates to the technical field of cleaning equipment, and is used for flame retardance of a battery pack in the cleaning equipment, the cleaning equipment comprises an equipment main body, the battery pack and a fireproof part, and the battery pack is arranged on the equipment main body. 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] The present application relates to the field of cleaning technology, and in particular to a cleaning device and a cleaning system. Background Art

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

[0003] In the related art, a battery pack is provided inside the cleaning device, and the battery pack provides power for the entire cleaning device. However, during the operation of the cleaning device, the battery pack may catch fire, thus posing a safety hazard. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a cleaning device and a cleaning system for flame retardant battery packs in the cleaning device, thereby ensuring the safety of the entire cleaning device.

[0005] This application is implemented through the following technical solutions.

[0006] In a first aspect, the present application provides a cleaning device, comprising a device body, a battery pack, and a fireproof component, wherein the battery pack is disposed on the device body. The fireproof component is disposed on the device body and is close to the battery pack, and the fireproof component releases a flame-retardant gas to the battery pack in response to an increase in the temperature of the battery pack.

[0007] In the technical solution of the embodiment of the present application, the device body provides support for the battery pack and the fireproof parts, and the device body can move to use the cleaning module on the device body to clean the surface to be cleaned, thereby meeting the cleaning requirements. Since the fireproof parts are arranged close to the battery pack, when the temperature of the battery pack rises, the fireproof parts can respond to the increase in the temperature of the battery pack and release flame-retardant gas to the battery pack to prevent the battery pack from burning due to the increase in temperature, thereby avoiding greater safety accidents caused by the high-temperature combustion of the battery pack, and improving the overall reliability of the cleaning equipment.

[0008] In some embodiments of the present application, the material of the fireproof element includes at least one of sodium azide, ammonium nitrate and ammonium phosphate.

[0009] In this way, when the temperature of the battery pack rises, the fireproof parts will be heated in a high temperature environment, and at least one of the sodium azide, ammonium nitrate and ammonium phosphate salts therein will release nitrogen, ammonia and other gases. The 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 increase in temperature, but also reduce the temperature of the battery pack, so as to exert a flame retardant effect in many aspects.

[0010] In some embodiments of the present application, a accommodating space is provided inside the fireproof component, and the battery pack is placed inside the accommodating space.

[0011] In this way, the entire battery pack is inside the fireproof component. When the temperature of the battery pack rises, the fireproof component can release flame-retardant gas from all directions of the battery pack to the battery pack, thereby achieving a better flame retardant effect. In addition, the fireproof component can also provide physical protection for the battery pack.

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

[0013] In this way, the chassis can play a bearing role for the battery pack, and the battery compartment can accommodate the battery pack to provide physical protection for the battery pack. On this basis, the flame-retardant gas released by the fire-proof parts can enter the battery compartment, so that the battery pack can be flame-retarded within the range of the battery compartment, which can better control the combustion range, improve the fire prevention effect, and reduce the impact of safety accidents.

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

[0015] With this arrangement, since the fire-retardant coating is applied to the inner wall of the battery compartment, flame-retardant gas can be released into the battery compartment more quickly to suppress possible combustion reactions, and the fire-retardant coating can also protect the battery compartment to further reduce the damage caused by combustion.

[0016] In some embodiments of the present application, a receiving hole is provided on the inner wall surface of the battery compartment, and the fireproof component is arranged inside the receiving hole.

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

[0018] In some embodiments of the present application, the number of accommodating holes and fireproof parts are both multiple and correspondingly arranged, the fireproof parts are arranged inside the corresponding accommodating holes, and the multiple accommodating holes are arranged around the battery pack or evenly distributed on the inner wall surface of the battery compartment.

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

[0020] In some embodiments of the present application, the cleaning device further comprises a receiving box, the receiving box is arranged inside the battery compartment, and the fireproof member is arranged inside the receiving box. When the fireproof member releases the flame-retardant gas in response to the increase of the battery pack temperature, the receiving box is communicated with the inside of the battery compartment.

[0021] With such a configuration, when the temperature of the battery pack rises, the fireproof component in the receiving box can release flame-retardant gas into the battery compartment to exert a flame-retardant effect. Since the fireproof component is arranged in the receiving box, the receiving box can protect the fireproof component to avoid accidental touching of the fireproof component.

[0022] In some embodiments of the present application, the battery compartment includes a bottom shell and a cover plate, the bottom shell is supported by the chassis, the cover plate is buckled on the bottom shell, and forms a cavity for accommodating the battery pack with the bottom shell.

[0023] With such arrangement, the battery compartment may include two parts, a bottom shell and a cover plate, which may facilitate the installation of the battery pack.

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

[0025] With such an arrangement, since the pressure relief mechanism on the battery pack will release pressure when the temperature of the battery pack rises, it will be more likely for a combustion reaction to occur at the pressure relief mechanism. Therefore, setting 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 exerting a better flame retardant effect and reducing the impact of accidents.

[0026] In some embodiments of the present application, the battery pack includes a battery cell, and the fireproof component is at least partially located on a side where a pole of the battery cell is located.

[0027] With such a configuration, since the temperature of the battery cell poles in the battery pack is more likely to rise and burn more easily when the temperature of the battery pack rises, the fireproof parts are arranged on the side where the battery cell poles are located. The flame-retardant gas can be quickly released to the vicinity of the poles, which can exert a better flame retardant effect and reduce the impact of accidents.

[0028] In some embodiments of the present application, the cleaning device further comprises a first waterproof structure, which is disposed on the surface of the fireproof component and is used to prevent liquid from contacting the fireproof component.

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

[0030] In some embodiments of the present application, the first waterproof structure includes a barrier layer, which is coated on the surface of the fireproof component to isolate the liquid from the fireproof component.

[0031] With such arrangement, the barrier layer can isolate the liquid and the fireproof component by coating the surface of the fireproof component, thereby preventing the liquid from contacting the fireproof component and ensuring the performance of the fireproof component in releasing flame-retardant gas.

[0032] In some embodiments of the present application, the cleaning device also includes a wet cleaning module and a second waterproof structure. The second waterproof structure is arranged on the device body to separate the device body into an independent first space and a second space. The battery pack and the fireproof part are arranged in the first space, and the wet cleaning module is arranged in the second space.

[0033] In this way, the battery pack and the fireproof member are located in different spaces from the wet cleaning module, so that the liquid on the wet cleaning module can be prevented from flowing to the location of the battery pack and the fireproof member, and the fireproof member can be prevented from getting damp or reacting with the liquid, thereby affecting its ability to generate flame-retardant gas, thereby ensuring the fireproof effect of the fireproof member. In addition, the battery pack can also be prevented from getting damp.

[0034] A second aspect of the present application provides a cleaning system, comprising a base station and a cleaning device in any one of the above embodiments, wherein the base station is used to dock the cleaning device.

[0035] In the technical solution of the embodiment of the present application, since the cleaning device in any of the above embodiments is included, the same beneficial effects can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

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

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

[0039] Figure 3 An exploded schematic diagram of a cleaning device provided for some embodiments of the present application;

[0040] Figure 4 A schematic cross-sectional view of a battery compartment, a battery pack, and a fireproof member provided for some embodiments of the present application;

[0041] Figure 5 for Figure 2 A local enlarged schematic diagram of the middle A;

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

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

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

[0045] Fig. 9 A schematic cross-sectional view of a battery compartment, a battery pack, a fireproof member and a first waterproof structure provided for some embodiments of the present application;

[0046] Fig.10 Another schematic top view of a cleaning device provided for some embodiments of the present application.

[0047] Description of Reference Numerals

[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 part; 131-fireproof coating; a-accommodating hole; 14-accommodating box; 15-cleaning component; 151-dust removal module; 16-first waterproof structure; 17-wet cleaning module; 171-mop module; 172-liquid storage tank; 18-second waterproof structure. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0056] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0057] Below, this application is described in detail.

[0058] With the development of science and technology, cleaning equipment is widely used in daily life, providing great convenience for people's lives. For example, cleaning equipment can be a sweeping robot, a sweeping and mopping cleaning robot, etc.

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

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

[0061] Through the cooperation of the base station and the cleaning equipment, when cleaning work needs to be performed, the cleaning equipment starts from the base station to perform the cleaning task. After completing the cleaning task, the cleaning equipment will dock at the base station, where it can be charged, refilled with water, cleaned, and dusted.

[0062] On this basis, if Figure 1 As shown, the present application also provides a cleaning device 1, which includes a device body 11 and a battery pack 12. The battery pack 12 is arranged on the device body 11, and the battery pack 12 provides electrical energy for the electrical components of the cleaning device 1 to ensure the normal operation of the entire cleaning device 1.

[0063] The battery pack 12 may be disposed inside the device body 11 , so that the device body 11 may provide physical protection for the battery pack 12 .

[0064] In some examples, the cleaning device 1 further includes a cleaning component 15 , which is disposed on the device body 11 and is 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, along the forward direction of the cleaning device 1, at least part of the cleaning component 15 can be arranged in front of the battery pack 12, that is, the cleaning component 15 is at least partially placed in front, so that the cleaning component 15 will first contact the surface to be cleaned, which can avoid the battery pack 12 blocking the cleaning blind spot. In addition, since the battery pack 12 is heavy, it also conforms to the mechanical principle of "light in front and heavy in the back". When the cleaning device 1 climbs a slope or overcomes an obstacle, the center of gravity moves backward, which can effectively prevent the cleaning device 1 from tilting back and increase the grip of the cleaning device 1.

[0066] In some examples, the cleaning component 15 includes a dust removal module 151. The dust removal module 151 may include components such as an air duct and a fan. The air duct is connected to the air inlet end of the fan. The air inlet end of the air duct can absorb dust on the surface to be cleaned, so that when the fan is started, the dust on the surface to be cleaned can enter the air duct. In order 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 box. The roller brush is provided on the device body 11. The air inlet end of the air duct is connected to the dust box. The roller brush is provided at the air inlet end of the dust box, and the roller brush can contact the surface to be cleaned. In this way, when removing dust, the roller brush can sweep the dust on the surface to be cleaned by moving relative to the surface to be cleaned, and then under the action of the fan, the dust will enter the dust box. After the dust box collects a certain amount of dust, the dust in the dust box can be cleaned.

[0067] In other embodiments, the cleaning device 1 may also include a sensing system, a control system, a motion system (for example, it may include multiple rollers installed at the bottom of the device body 11 and a roller driving device), and a human-computer interaction system (for example, it may include voice control interaction, motion interaction, virtual reality input, etc.). The above systems cooperate with the cleaning component 15 and the battery pack 12 to enable the cleaning device 1 to move autonomously to achieve the cleaning function.

[0068] Through the above-mentioned setting, the battery pack 12 can provide electrical energy for the cleaning component 15, the sensing system, the control system, the motion system, etc. The mutual cooperation of the cleaning component 15, the sensing system, the control system and the motion system can clean the surface to be cleaned to realize the cleaning function of the cleaning device 1.

[0069] In the related art, during the operation of the cleaning device 1, the battery pack 12 may catch fire, thus posing a safety hazard.

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

[0071] In some examples, the fireproof element 13 releases flame-retardant gas to the battery pack 12 in response to the temperature of the battery pack 12 rising to a first threshold value, and the first threshold value can be determined by monitoring the temperature change of the battery pack 12 during operation.

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

[0073] In some examples, the fireproofing element 13 may release the flame-retardant gas to the battery pack 12 in response to the increase in the temperature of the battery pack 12 , which may be that the fireproofing element 13 responds to an electrical signal or a temperature signal caused by the increase in the temperature of the battery pack 12 .

[0074] In some examples, the device body 11 may be disc-shaped, which not only improves the space utilization within the device body 11 but also avoids the risk of right-angle collision of the device body 11 and complies with safety standards.

[0075] In some examples, the battery pack 12 may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly includes a plurality of battery cells 122, which are connected in series, in parallel, or in hybrid (in series and in parallel) via a busbar.

[0076] The battery cell 122 may be a secondary battery, which refers to a battery cell 122 that can be continuously used by activating active materials by charging after the battery cell 122 is discharged.

[0077] In addition, the battery cell 122 can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0078] In some examples, the flame retardant gas may be an inert gas, for example, the inert gas may be at least one of carbon dioxide, nitrogen, argon, and the like.

[0079] Through the above arrangement, the device body 11 provides support and protection for the battery pack 12 and the fireproof member 13, and the device body 11 can move to use the cleaning assembly 15 on the device body 11 to clean the surface to be cleaned, thereby meeting the cleaning requirements. Since the fireproof member 13 is arranged close to the battery pack 12, when the temperature of the battery pack 12 rises, the fireproof member 13 can respond to the increase in the temperature of the battery pack 12 and release a flame-retardant gas to the battery pack 12 to prevent the battery pack 12 from burning due to the increase in temperature, thereby avoiding greater safety accidents caused by the high-temperature combustion of the battery pack 12, so as to improve the overall reliability of the cleaning device 1.

[0080] In some embodiments, the material of the fireproofing element 13 includes at least one of sodium azide, ammonium nitrate, and ammonium phosphate.

[0081] It is understood that sodium azide and ammonium nitrate will decompose and release nitrogen when heated, and the nitrogen can play a flame retardant effect by diluting the oxygen around the battery pack 12 and reducing the temperature of the battery pack 12. Ammonium phosphate will decompose and release ammonia when heated, and the ammonia can dilute the oxygen around the battery pack 12 and play a flame retardant effect.

[0082] That is, in response to the increase in the temperature of the battery pack 12, the fireproof member 13 will be thermally decomposed into at least one of nitrogen and ammonia to exert a flame retardant effect.

[0083] In some examples, the material of the fireproof member 13 includes 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. The nitrogen can dilute the oxygen around the battery pack 12 and reduce the temperature of the battery pack 12 to exert a flame retardant effect. For details, see the following chemical reaction formula:

[0084] 6NaN3+Fe2O3=2Fe+3Na2O3+9N2↑

[0085] For example, according to the stoichiometric ratio in the chemical reaction equation, the ratio of sodium azide to iron oxide in the fireproof member 13 is 6: 1. This ensures that sodium azide and iron oxide react fully, avoids excess raw materials, generates sufficient nitrogen, and ensures the flame retardant effect.

[0086] Through the above arrangement, when the temperature of the battery pack 12 rises, the fireproof component 13 will be heated in a high temperature environment, and at least one of the sodium azide, ammonium nitrate and ammonium phosphate therein will release nitrogen, ammonia and other gases. 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 increase in temperature, but also reduce the temperature of the battery pack 12, so as to exert the flame retardant effect in many aspects.

[0087] In some embodiments, Figure 3 As shown, the device body 11 includes a chassis 111 and a battery compartment 112. The battery compartment 112 is supported on the chassis 111, and the battery pack 12 is accommodated 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.

[0088] In some examples, the chassis 111 is generally circular and flat, and the chassis 111 is used to support the battery compartment 112 , and the battery compartment 112 is used to load the battery pack 12 to protect the battery pack 12 .

[0089] The shape of the cavity inside the battery compartment 112 can match the shape of the battery pack 12, so that the battery compartment 112 can not only physically protect the battery pack 12, but also save space as much as possible. For example, if the battery pack 12 is square in shape, the shape of the cavity inside the battery compartment 112 is also square, and the two match to achieve a stable arrangement of the battery pack 12.

[0090] Through the above-mentioned configuration, the chassis 111 can play a bearing effect on the battery pack 12, and the battery compartment 112 can accommodate the battery pack 12 to physically protect the battery pack 12. On this basis, the flame-retardant gas released by the fireproof component 13 can enter the battery compartment 112, so that the battery pack 12 can be flame-retarded within the range of the battery compartment 112, which can better control the combustion range, improve the fire prevention effect, and reduce the impact of safety accidents.

[0091] In some embodiments, Figure 3 As shown, the battery compartment 112 includes a bottom shell 1121 and a cover plate 1122 . The bottom shell 1121 is supported on the chassis 111 , and the cover plate 1122 is buckled on the bottom shell 1121 , and together with the bottom shell 1121 , forms a cavity for accommodating the battery pack 12 .

[0092] It can be understood that a take-in and put-out opening is formed on the bottom shell 1121 , and the cover plate 1122 covers the take-in and put-out opening to form a battery compartment 112 together with the bottom shell 1121 .

[0093] In some examples, the bottom shell 1121 and the cover 1122 are detachably connected, so that when the battery pack 12 needs to be placed or taken out of the battery compartment 112, the bottom shell 1121 and the cover 1122 can be separated to open the access port, thereby achieving the access of the battery pack 12.

[0094] The bottom shell 1121 and the cover plate 1122 can be detachably connected by appropriate means such as screw fastening or clamping.

[0095] In some examples, the cover 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 too many parts at the bottom of the bottom shell 1121, the cover 1122 and the bottom shell 1121 can be easily disassembled and installed, which is convenient for actual operation.

[0096] Through the above arrangement, the battery compartment 112 includes a bottom shell 1121 and a cover plate 1122 . Thus, after placing the battery pack 12 in the bottom shell 1121 , the cover plate 1122 can be snapped onto the bottom shell 1121 , thereby encapsulating the battery pack 12 , which makes it easier to install the battery pack 12 .

[0097] When the fireproof member 13 releases the flame-retardant gas in response to the increase in the temperature of the battery pack 12, the flame-retardant gas can enter the battery compartment 112 through a variety of pathways, which are described in detail below.

[0098] In some embodiments, 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 .

[0099] In some examples, when the material of the fireproof member 13 includes at least one of sodium azide, ammonium nitrate and ammonium phosphate, a combination of one or more of the above materials can be mixed with a colloid to form a viscous fireproof member 13, and then the viscous fireproof member 13 is applied to the inside of the battery compartment 112 to form a fireproof coating 131.

[0100] In some examples, the fire-retardant coating 131 can cover the entire inner wall of the battery compartment 112, so that no matter which part of the battery pack 12 has a high temperature, the fire-retardant coating 131 can respond quickly and generate flame-retardant gas into the battery compartment 112, thereby ensuring flame-retardant sensitivity and reliability.

[0101] Through the above-mentioned arrangement, since the fire-retardant coating 131 is coated on 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, and the fire-retardant coating 131 can also protect the battery compartment 112 to further reduce the damage caused by combustion.

[0102] In some embodiments, Figure 5 As shown, the inner wall surface of the battery compartment 112 has a receiving hole a, and the fireproof member 13 is disposed inside the receiving hole a.

[0103] The fireproof part 13 is arranged in the accommodating hole a, and can be fixed by suitable means such as gluing, screw fastening or clamping.

[0104] In addition, the accommodating hole a may be a through hole penetrating the battery compartment 112 , or the accommodating hole a may be a blind hole arranged on the inner wall surface of the battery compartment 112 , and the specific arrangement may be selected according to needs.

[0105] In addition, the fireproof member 13 may be filled in the accommodating hole a, or the fireproof member 13 may only occupy a portion of the accommodating hole a. The specific selection may be made according to needs.

[0106] In some examples, the shape of the receiving hole a may be a regular shape such as a circle or a square. Of course, the shape of the receiving hole a may also be an irregular shape.

[0107] Through the above-mentioned arrangement, since the receiving hole a is connected to the interior of the battery compartment 112, when the temperature of the battery pack 12 rises, the fireproof component 13 can respond quickly and release flame-retardant gas into the battery compartment 112. Since the fireproof component 13 is arranged in the receiving hole a, a hole can be opened at a suitable position on the inner wall of the battery compartment 112 according to the fire protection requirements, and it has strong adjustability.

[0108] In some embodiments, Figure 5As shown, the number of the accommodating holes a and the fireproof parts 13 are both multiple and correspondingly arranged. The fireproof parts 13 are arranged inside the corresponding accommodating holes a. The multiple accommodating holes a are arranged around the battery pack 12 or evenly distributed on the inner wall surface of the battery compartment 112.

[0109] It can be understood that the number and aperture of the accommodation holes a should be determined according to the number of the accommodation holes a and the size of the surface area of ​​the battery compartment 112, and can be specifically set according to actual working conditions.

[0110] The plurality of fireproofing elements 13 may be arranged in a one-to-one correspondence with the plurality of accommodating holes a, so that only one fireproofing element 13 is arranged in one accommodating hole a. Alternatively, a plurality of fireproofing elements 13 may also be arranged in one accommodating hole a.

[0111] Through the above arrangement, when the plurality of accommodation holes a are arranged around the battery pack 12, the accommodation holes a can release flame retardant gas from the periphery of the battery pack 12 to the inside of the battery compartment 112. When the plurality of accommodation holes a are evenly distributed on the inner wall surface of the battery compartment 112, flame retardant gas can be released from all sides of the battery pack 12 to the inside of the battery compartment 112. Both arrangement methods can exert a good flame retardant effect.

[0112] In some embodiments, Figure 6 As shown, the cleaning device 1 further includes a receiving box 14, which is disposed inside the battery compartment 112, and a fireproof member 13 is disposed inside the receiving box 14. When the fireproof member 13 releases flame-retardant gas in response to an increase in the temperature of the battery pack 12, the receiving box 14 is communicated with the inside of the battery compartment 112.

[0113] The shape of the containing box 14 can be selected as required, for example, it can be a regular shape such as a cube or a cylinder, or it can also be an irregular shape.

[0114] In some examples, the accommodating box 14 can always be connected to the inside of the battery compartment 112, for example, an opening is provided on the side wall of the accommodating box 14, and the accommodating box 14 is connected to the inside of the battery compartment 112 through the opening. In this way, when the fireproof member 13 releases combustion gas in response to the increase in the temperature of the battery pack 12, the combustion gas will enter the battery compartment 112 through the opening, thereby preventing fire.

[0115] In other examples, when the battery pack 12 is not in a state where the temperature rises, the containing box 14 is in a closed state. However, when the battery pack 12 is in a state where the temperature rises, the containing box 14 may melt at a high temperature, thereby exposing the fireproof component 13 to the interior of the battery compartment 112. At this time, the fireproof component 13 responds to the combustion of the battery pack 12 and releases flame-retardant gas into the interior of the battery compartment 112, thereby achieving flame retardancy.

[0116] Through the above arrangement, when the temperature of the battery pack 12 rises, the fireproof component 13 in the receiving box 14 can release flame-retardant gas into the battery compartment 112 to exert a flame-retardant effect. Since the fireproof component 13 is arranged in the receiving box 14, the receiving box 14 can protect the fireproof component 13 to avoid accidental touching of the fireproof component 13.

[0117] In some embodiments, the fireproof component 13 has a receiving space inside, and the battery pack 12 is received inside the receiving space.

[0118] In some examples, after the battery pack 12 is disposed in the accommodation space, the fireproof component 13 wraps 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 to the battery pack 12.

[0119] In some examples, the fireproof component 13 can be processed into a structure similar to the battery compartment 112 in imitation of the battery compartment 112, so that the battery compartment 112 can be replaced with the fireproof component 13. For example, only the material of the battery compartment 112 can be replaced with the material of the fireproof component 13, so as to achieve flame retardancy of the battery pack 12.

[0120] Through the above arrangement, the entire battery pack 12 is inside the fireproof member 13. When the temperature of the battery pack 12 rises, the fireproof member 13 can release flame-retardant gas from all directions of the battery pack 12 to the battery pack 12, thereby exerting a better flame retardant effect. In addition, the fireproof member 13 can also exert a physical protection effect on the battery pack 12.

[0121] In some embodiments, 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 .

[0122] 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 releases pressure 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 accurately and quickly respond to the increase in temperature of the pressure relief mechanism 121 of the battery pack 12, thereby releasing the flame-retardant gas.

[0123] Through the above arrangement, since the pressure relief mechanism 121 on the battery pack 12 will release pressure when the temperature of the battery pack 12 rises, it is easier for a combustion reaction to occur at the pressure relief mechanism 121. Therefore, the fireproof component 13 is arranged on the pressure relief path of the pressure relief mechanism 121. The flame-retardant gas can be released to the pressure relief mechanism 121 faster, thereby achieving a better flame-retardant effect and reducing the impact of accidents.

[0124] In some embodiments, Figure 8As described above, the battery pack 12 includes a battery cell 122, and the fireproof member 13 is at least partially located on a side where the pole of the battery cell 122 is located.

[0125] It is understood that the battery pack 12 generally includes a plurality of stacked battery cells 122, and the plurality of battery cells 122 are stacked to form a battery cell assembly. The poles of the battery cells 122 in the battery cell assembly are generally located on the same side and are electrically connected together through a busbar.

[0126] Through the above-mentioned arrangement, since the temperature of the battery pack 12 is more likely to increase and burn more easily when the temperature of the battery pack 12 rises, the fireproof part 13 is arranged on the side where the battery cell 122 pole is located, and the flame-retardant gas can be quickly released to the vicinity of the pole, thereby exerting a better flame-retardant effect and reducing the impact of accidents.

[0127] The cleaning device 1 may be used in a humid or water-related environment during operation, and therefore, the fireproof element 13 needs to be specially designed.

[0128] In some embodiments, Fig. 9 As shown, the cleaning device 1 further comprises a first waterproof structure 16 , which is arranged on the surface of the fireproof member 13 to prevent liquid from contacting the fireproof member 13 .

[0129] It can be understood that the provision of the first waterproof structure 16 should not affect the release of flame-retardant gas by the fireproof component 13 in response to the increase in temperature of the battery pack 12 , that is, after the first waterproof structure 16 is provided, the fireproof component 13 can still release flame-retardant gas to the battery pack 12 .

[0130] Through the above arrangement, the first waterproof structure 16 can prevent liquid from contacting the fireproof component 13, thereby preventing the fireproof component 13 from getting damp or the fireproof component 13 from reacting with liquid to affect its ability to generate flame-retardant gas, thereby ensuring the fireproof effect of the fireproof component 13.

[0131] In some embodiments, Fig. 9 As shown, the first waterproof structure 16 includes a barrier layer, which is coated on the surface of the fireproof component 13 to isolate the liquid from the fireproof component 13.

[0132] It is best that the barrier layer does not have a heat-insulating effect, so that the fireproof member 13 can normally and quickly respond to the increase in the temperature of the battery pack 12. Of course, the barrier layer can also have a certain heat-insulating effect, but the heat-insulating effect should be controlled to a certain extent. For example, when the temperature of the battery pack 12 rises and just reaches the critical point of combustion, the fireproof member 13 can respond to the temperature and release the flame-retardant gas.

[0133] In addition, the barrier layer can be made of a non-liquid-absorbing material, for example, the non-liquid-absorbing material can be metal or wood, etc., so that the barrier layer can directly isolate the liquid from the outside, thereby preventing the liquid from contacting the fireproof component 13.

[0134] Alternatively, the barrier layer may be made of a liquid-absorbing material, for example, the barrier layer is made of a sponge, and the liquid absorbed by the barrier layer needs to be retained inside the barrier layer and cannot penetrate the fireproof member 13. In this way, when the liquid approaches the fireproof member 13, the barrier layer will absorb the liquid, and over time, the liquid in the barrier layer will evaporate, thereby preventing the liquid from contacting the fireproof member 13.

[0135] In some examples, when the fireproof member 13 includes a fireproof coating 131, the barrier layer is coated on the side surface of the fireproof coating 131 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 normally enters the battery compartment 112, the flame-retardant gas needs to break through the barrier layer.

[0136] In other examples, when there is a containing space inside the fireproof member 13 and the battery pack 12 is contained in the containing space, the barrier layer is coated on at least one of the outer surface of the fireproof member 13 facing away from the battery pack 12 and the inner surface of the fireproof member 13 facing the battery pack 12. In this case, in order to ensure that the flame-retardant gas enters the battery compartment 112 normally, the flame-retardant gas needs to be able to at least break through the barrier layer coated on the inner surface of the fireproof member 13 facing the battery pack 12.

[0137] Through the above-mentioned arrangement, the barrier layer can isolate the liquid and the fireproof component 13 by covering the entire surface of the fireproof component 13, thereby avoiding contact between the liquid and the fireproof component 13, thereby ensuring the performance of the fireproof component 13 in releasing flame-retardant gas and improving the overall reliability of the cleaning equipment 1.

[0138] In some embodiments, Fig.10 As shown, the cleaning device 1 also includes a wet cleaning module 17 and a second waterproof structure 18. The second waterproof structure 18 is arranged on the device body 11 to separate the device body 11 into an independent first space b and a second space c. The battery pack 12 and the fireproof part 13 are arranged in the first space b, and the wet cleaning module 17 is arranged in the second space c.

[0139] In some examples, the wet cleaning module 17 may include a mop module 171 and a liquid storage tank 172. The mop module 171 includes a connected driving component and a mop. The driving component and the liquid storage tank 172 are arranged on the device body 11. The mop is carried at the bottom of the device body 11. The driving component is electrically connected to the battery pack 12 for controlling the movement of the mop to clean the surface to be cleaned. The liquid storage tank 172 provides cleaning liquid for the mop.

[0140] The cleaning liquid may include water or a liquid containing cleaning ingredients, etc., and may be set according to specific needs.

[0141] In addition, the cleaning liquid in the liquid storage tank 172 can be used to moisten the surface to be cleaned or to clean the mop.

[0142] For example, when the cleaning device 1 needs to perform a cleaning task, the cleaning device 1 moves out of the base station. During the cleaning process, the cleaning liquid in the liquid storage tank can be discharged to the surface to be cleaned, so that the surface to be cleaned can be cleaned by mopping.

[0143] For another example, when the cleaning device 1 is located in 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 in the base station that cleans the outer side of the mop, the mop can be thoroughly cleaned.

[0144] Exemplarily, there are two mop modules, including a left mop module and a right mop module, wherein the mop of the left mop module can be swung out of the range covered by the device body 11, so that it is convenient to clean corners such as wall corners.

[0145] The second waterproof structure 18 may include a metal partition, a nanofiber partition or an activated carbon composite partition.

[0146] Through the above arrangement, the battery pack 12 and the fireproof member 13 are located in different spaces from the wet cleaning module 17, so that the liquid on the wet cleaning module 17 can be prevented from flowing to the location of the battery pack 12 and the fireproof member 13, and the fireproof member 13 can be prevented from getting damp or reacting with the liquid, thereby affecting its ability to generate flame-retardant gas, thereby ensuring the fireproof effect of the fireproof member 13. In addition, the battery pack 12 can also be prevented from getting damp. The second waterproof structure 18 can reduce the probability of liquid approaching the fireproof member 13 from the perspective of the overall layout inside the cleaning device 1, thereby ensuring the ability of the fireproof member 13 to release flame-retardant gas.

[0147] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A cleaning device, characterized in that: include: Device body (11); A battery pack (12), the battery pack (12) being arranged on the device body (11); A fireproof component (13), wherein the fireproof component (13) is arranged on the device body (11) and is close to the battery pack (12), and the fireproof component (13) releases flame-retardant gas to the battery pack (12) in response to an increase in the temperature of the battery pack (12).

2. The cleaning device according to claim 1, characterized in that The material of the fireproof member (13) includes at least one of sodium azide, ammonium nitrate and ammonium phosphate.

3. The cleaning device according to claim 1 or 2, characterized in that: The fireproof component (13) has a storage space inside, and the battery pack (12) is accommodated inside the storage space.

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

5. The cleaning device according to claim 4, characterized in that The fireproof component (13) is a fireproof coating (131) arranged inside the battery compartment (112), and the fireproof coating (131) is coated on the inner wall surface of the battery compartment (112).

6. The cleaning device according to claim 4, characterized in that The inner wall surface of the battery compartment (112) is provided with a receiving hole (a), and the fireproof component (13) is arranged inside the receiving hole (a).

7. The cleaning device according to claim 6, characterized in that The number of the accommodating holes (a) and the fireproof parts (13) are both multiple and correspondingly arranged. The fireproof parts (13) are arranged inside the corresponding accommodating holes (a). The multiple accommodating holes (a) are arranged around the battery pack (12) or are evenly distributed on the inner wall surface of the battery compartment (112).

8. The cleaning device according to claim 4, characterized in that The cleaning device (1) further comprises a containing box (14), wherein the containing box (14) is arranged inside the battery compartment (112), and the fireproof component (13) is arranged inside the containing box (14); when the fireproof component (13) releases flame-retardant gas in response to an increase in the temperature of the battery pack (12), the containing box (14) is connected to the inside of the battery compartment (112).

9. The cleaning device according to claim 4, characterized in that: The battery compartment (112) comprises a bottom shell (1121) and a cover plate (1122); the bottom shell (1121) is supported on the chassis (111); the cover plate (1122) is buckled on the bottom shell (1121) and forms a cavity for accommodating the battery pack (12) together with the bottom shell (1121).

10. The cleaning device according to claim 1 or 2, characterized in that: The battery pack (12) comprises 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).

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

12. The cleaning device according to claim 1 or 2, characterized in that: The cleaning device (1) further comprises a first waterproof structure (16), wherein the first waterproof structure (16) is arranged on the surface of the fireproof component (13) and is used to prevent liquid from contacting the fireproof component (13).

13. The cleaning device according to claim 12, characterized in that The first waterproof structure (16) comprises a barrier layer, which is coated on the surface of the fireproof component (13) to isolate the liquid from the fireproof component (13).

14. The cleaning device according to claim 1 or 2, characterized in that: The cleaning device (1) also includes a wet cleaning module (17) and a second waterproof structure (18), wherein the second waterproof structure (18) is arranged on the device body (11) to separate the device body (11) into an independent first space (b) and a second space (c), the battery pack (12) and the fireproof component (13) are arranged in the first space (b), and the wet cleaning module (17) is arranged in the second space (c).

15. A cleaning system, characterized in that: The cleaning device comprises a base station and the cleaning device (01) according to any one of claims 1 to 14, wherein the base station is used for docking the cleaning device (01).

Images