Main unit, cleaning device, and cleaning system

Abstract

A main unit (100), a cleaning device (10), and a cleaning system. The main unit (100) is used for the cleaning device (10), and the main unit (100) comprises a main unit body (110), wherein the main unit body (110) comprises a first end and a second end opposite each other in the extension direction thereof, the second end being used for connection to a cleaning base (200); and an energy storage cavity (111) is formed in the main unit body (110), and the energy storage cavity (111) is used for accommodating an energy storage assembly; and a wire outlet (112) in communication with the energy storage cavity (111) is formed on the main unit body (110), and the wire outlet (112) faces the second end.

Description

Airframe, cleaning equipment and cleaning system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202420086935.5 filed on January 12, 2024. The contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as a part of this application. Technical Field

[0003] The present disclosure relates to the technical field of cleaning equipment, and in particular to a machine body, a cleaning equipment and a cleaning system. Background Art

[0004] As society continues to develop and people's living standards improve, cleaning equipment (such as sweepers and floor scrubbers) are becoming increasingly popular in more and more households, saving time and effort compared to traditional manual cleaning. Cleaning equipment typically consists of a main unit and a cleaning base. The base includes a cleaning head for mopping. Cleaning fluid is sprayed onto a cleaning roller via a water pipe, and the cleaning head rotates at high speed to mop the floor.

[0005] Typically, a cleaning device is provided with a battery and a water tank for containing cleaning liquid on its body. Since the water tank provided on the body may leak, the waterproof performance of the battery in the body is required to be high.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0007] The purpose of the present disclosure is to provide a machine body, a cleaning device and a cleaning system.

[0008] According to one aspect of the present disclosure, there is provided a body for a cleaning device, the body comprising:

[0009] A main body, the main body including a first end and a second end opposite to each other in its extension direction, the second end being used to connect to the cleaning base; the main body is formed with an energy storage cavity, the energy storage cavity being used to accommodate the energy storage component;

[0010] Wherein, a wire outlet connected to the energy storage cavity is formed on the main body of the machine, and the wire outlet faces the second end.

[0011] In an exemplary embodiment of the present disclosure, the wire outlet is located on a side of the energy storage cavity close to the second end.

[0012] In an exemplary embodiment of the present disclosure, the wire outlet is formed on the bottom wall of the energy storage cavity.

[0013] In an exemplary embodiment of the present disclosure, an extension portion extending from the bottom wall toward the second end is formed on an edge area of ​​the wire outlet of the machine body.

[0014] In an exemplary embodiment of the present disclosure, the extension portion is ring-shaped.

[0015] In an exemplary embodiment of the present disclosure, in a width direction perpendicular to the extending direction, the wire outlet is located in a middle portion of the machine body.

[0016] In an exemplary embodiment of the present disclosure, a plurality of the wire outlets are formed on the machine body.

[0017] In an exemplary embodiment of the present disclosure, the body further comprises:

[0018] an energy storage component, the energy storage component being disposed in the energy storage cavity;

[0019] A lead wire, the lead wire passing through the wire outlet and connected to the energy storage component;

[0020] A sealant is filled between the lead wire and the wire outlet to seal the gap between the lead wire and the wire outlet.

[0021] According to another aspect of the present disclosure, there is provided a cleaning device, the cleaning device comprising:

[0022] the aforementioned body;

[0023] A cleaning base is rotatably connected to the machine body.

[0024] According to another aspect of the present disclosure, a cleaning system is provided, the cleaning system comprising:

[0025] the cleaning equipment mentioned above;

[0026] A base station is configured to support the cleaning device.

[0027] In the body provided by the present disclosure, the wire outlet of the energy storage cavity for accommodating the energy storage assembly is oriented toward the second end, that is, toward the bottom of the body, so that the wire outlet faces the ground, and leaked liquid is not easily able to enter the energy storage cavity through the wire outlet; therefore, even if liquid leaks from the body, the leaked liquid is prevented from entering the energy storage cavity through the wire outlet, thereby improving the waterproof performance of the energy storage cavity and further improving the safety of the energy storage assembly.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0030] FIG1 is a schematic diagram of a machine body provided by an embodiment of the present disclosure.

[0031] FIG2 is a schematic diagram of a cleaning device provided by an embodiment of the present disclosure.

[0032] FIG3 is a partial enlarged view of the wire outlet in FIG2 .

[0033] FIG4 is a schematic diagram of a cleaning system provided by an embodiment of the present disclosure.

[0034] Explanation of reference numerals: 10, cleaning device; 100, machine body; 110, machine body; 111, energy storage chamber; 112, wire outlet; 113, extension portion; 120, clean water tank; 130, dirty water tank; 200, cleaning base; 300, handle assembly; 20, base station. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0036] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one component in the illustrations to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, it may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through the other structure.

[0037] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the quantity of their objects.

[0038] An embodiment of the present disclosure provides a cleaning device, such as a floor scrubber. It should be noted that the present disclosure's explanation of the cleaning device using a floor scrubber is merely a preferred embodiment of the present disclosure and does not limit the scope of protection of the cleaning device of the present disclosure. For example, the cleaning device of the present disclosure may be a handheld floor scrubber with a handle and manually operated by a user, or a handheld floor sweeper with a handle and manually operated by a user. The cleaning device may also be a mop, a sweeper, an electric mop, etc., and does not limit the scope of protection of the cleaning device of the present disclosure.

[0039] In the following, the embodiments of the present disclosure will be described in detail by taking a handheld floor scrubber as an example of a cleaning device.

[0040] Specifically, as shown in Figures 1 and 2, the cleaning device 10 includes a body 100 and a cleaning base 200. The body 100 includes a first end and a second end opposite to each other along its extension direction X, and the cleaning base 200 is connected to the second end of the body 100; a handle assembly 300 is provided on the body 100, and the handle assembly 300 is connected to the first end of the body 100 away from the cleaning base 200, that is, the cleaning base 200 and the handle assembly 300 are located at two ends of the body 100 along the length direction of the body 100; the handle assembly 300 is used for operation and gripping by the user. By gripping the handle assembly 300, the user controls the cleaning base 200 to move on the surface to be cleaned, thereby achieving the purpose of cleaning the surface to be cleaned.

[0041] At present, the battery protection of the floor scrubber is mostly sealed with a rubber strip, and the battery outlet 112 is sealed by dispensing glue or other methods; however, when dispensing glue at the outlet 112, the glue has a certain fluidity before curing, and the dispensing quality cannot be fully guaranteed, resulting in the possibility of water leakage at the outlet 112, which in turn poses a safety hazard to the battery.

[0042] To address the above technical issues, in one embodiment of the present disclosure, as shown in Figures 2 and 3, a machine body 100 is provided, comprising: a machine body 110, wherein the machine body 110 includes a first end and a second end opposite to each other in an extension direction X, with the second end being configured to connect to a cleaning base 200; and a power storage cavity 111 formed in the machine body 110, which is configured to accommodate the power storage assembly. A wire outlet 112 is formed on the machine body 110, communicating with the power storage cavity 111, with the wire outlet 112 facing the second end.

[0043] In the body 100 provided by the present disclosure, the wire outlet 112 of the energy storage cavity 111 for accommodating the energy storage assembly faces the second end, that is, toward the bottom of the body 100, so that the wire outlet 112 faces the ground. Leaked liquid in the body 100 is not easily able to enter the energy storage cavity 111 through the wire outlet 112. Therefore, even if liquid leaks from the body 100, the leaked liquid is prevented from entering the energy storage cavity 111 through the wire outlet 112, thereby improving the waterproof performance of the energy storage cavity 111 and thereby improving the safety of the energy storage assembly.

[0044] Specifically, the main body 110 forms the main structure of the body 100 , and a fresh water tank installation slot, a sewage tank installation slot, and a battery energy storage chamber 111 may be formed on the main body 110 .

[0045] The main body 110 can be a skeleton structure, forming the main structure of the body 100. The design of the main body 110 also provides mounting locations for the fresh water tank 120, the sewage tank 130, and the battery. The main body 110, which forms the skeleton structure of the body 100 and the mounting locations for various components, can be a one-piece structure to enhance the structural strength of the body 100. Of course, the main body 110 can also be formed by connecting and combining multiple parts, which is not limited in this disclosure.

[0046] Specifically, the machine body 100 is provided with a clean water tank 120 and a dirty water tank 130. The clean water tank 120 contains cleaning liquid, such as clean water, which can be supplied to the cleaning roller via a clean water pipeline to wet the surface of the cleaning roller, thereby enabling the cleaning roller to perform wet cleaning on the surface being cleaned. When the cleaning roller performs wet cleaning, dirty water is generated on the surface being cleaned. The dirty water is recovered through the dirty water recovery pipeline and returned to the dirty water tank 130.

[0047] Specifically, the body 100 is also equipped with a fan, which is configured to circulate air in the air duct, providing power for recycling sewage. Under the action of the suction force generated by the fan, the sewage is drawn through the air duct and into the sewage tank 130. After the cleaning device 10 completes the cleaning operation, the sewage collected in the sewage tank 130 of the cleaning device 10 can be poured out. The entire air duct in the cleaning device 10, especially the sewage recovery air duct and the sewage tank 130, is kept dry to prevent the breeding of undesirable contaminants.

[0048] Specifically, the wire outlet 112 is located on a side of the energy storage cavity 111 close to the second end, that is, the wire outlet 112 is arranged close to the ground and is located at a lower position.

[0049] As shown in Figures 2 and 3 , the wire outlet 112 is formed on the bottom wall of the energy storage cavity 111. By forming the wire outlet 112 on the bottom wall of the energy storage cavity 111, the wire outlet 112 is located at the bottom of the energy storage cavity 111, that is, the wire outlet 112 does not face the leakage path, and thus, the leaked liquid in the main body 110 is not likely to flow back into the energy storage cavity 111 through the wire outlet 112, thereby avoiding the risk of leaked liquid entering the energy storage cavity 111 and improving the reliability of the body 100.

[0050] The energy storage cavity 111 formed by the main body 110 may be rectangular. The rectangular energy storage cavity 111 includes a top wall and a bottom wall oppositely arranged in the extension direction X, and two side walls oppositely arranged in the width direction Y, and the two side walls connect the top wall and the bottom wall.

[0051] Specifically, as shown in FIG3 , the main body 110 may be provided with an extension portion 113 extending from the bottom wall toward the second end at the edge of the outlet 112. By providing the extension portion 113, a blocking portion is formed at the outlet 112. When liquid leakage occurs inside the main body 110, the extension portion 113 can block the leakage, further preventing the leakage from flowing back into the energy storage chamber 111. At the same time, by providing the extension portion 113, a guide is formed for the lead wire located in the outlet 112, preventing the outlet 112 from being too deep or too shallow, thereby preventing the lead wire from being excessively bent. This can improve the life of the lead wire and further improve the reliability of the energy storage component. In addition, by providing the extension portion 113, the extension portion 113 can be used as a reinforcement structure at the outlet 112, preventing stress from being concentrated at the edge of the outlet 112, thereby preventing the outlet 112 from being broken, and further improving the waterproof performance of the outlet 112.

[0052] The extension portion 113 may be annular, with the extension portion 113 formed around the outlet 112 , so that the outlet 112 can be protected from liquid leakage through the extension portion 113 , further improving the waterproof performance of the energy storage chamber 111 .

[0053] The length of the extension portion 113 in the extension direction X of the main body 110 can be greater than the thickness of the bottom wall of the energy storage chamber 111 to provide sufficient leakage resistance. Furthermore, the extension portion 113 increases the clearance area between the lead wire in the outlet 112 and the main body 110, thereby improving the sealing effect of the sealant at the outlet 112 after subsequent glue dispensing.

[0054] The extension 113 may form the edge of the wire outlet 112 on the main body 110. For example, when the wire outlet 112 is formed by a through hole on the bottom wall of the energy storage cavity 111, the extension 113 may be located at the edge of the opening, thereby increasing the depth of the wire outlet 112 and thereby increasing the clearance area between the lead wire in the wire outlet 112 and the main body 110. At the same time, the deeper wire outlet 112 avoids excessive bending stress on the lead wire, thereby improving the reliability of the lead wire.

[0055] Specifically, the extension portion 113 and the portion of the body 110 forming the energy storage chamber 111 may be an integrated structure to enhance the structural strength of the extension portion 113 and enhance the waterproof performance of the extension portion 113 .

[0056] Among them, the thickness of the extension portion 113 can be the same as the thickness of the energy storage cavity 111 of the main body 110, so the cavity wall of the energy storage cavity 111 and the extension portion 113 can be formed through a one-time molding process, which improves process efficiency, reduces process difficulty, and saves process costs.

[0057] Of course, the extension portion 113 and the portion of the body 110 forming the energy storage cavity 111 may also be a separable structure, that is, the extension portion 113 may be fixedly connected to the portion of the body 110 forming the energy storage cavity 111 by bonding, welding, clamping, threaded connection, etc., and the present disclosure does not impose any restrictions on this.

[0058] Specifically, as shown in Figures 2 and 3 , the cable outlet 112 is located in the middle of the main body 110 in the width direction Y perpendicular to the extension direction X. By locating the cable outlet 112 in the middle of the main body 110, if leakage occurs within the main body 110, the leaked liquid will generally flow through the portion of the main body 110 near the periphery, thereby preventing the leaked liquid from flowing near the cable outlet 112 and improving the waterproof performance of the cable outlet 112. Of course, the cable outlet 112 can also be located near the periphery of the main body 110, and this disclosure is not limited thereto.

[0059] Specifically, the main body 110 may be formed with a plurality of wire outlets 112. When there are multiple leads, by providing multiple wire outlets 112, each wire outlet 112 is provided with one or more leads, thereby further improving the sealing effect of the gap between the leads and the wire outlets 112 by subsequent glue dispensing.

[0060] Of course, a wire outlet 112 may also be provided on the main body 110 , and all leads are led out through the wire outlet 112 to reduce the production cost of the main body 110 . This disclosure does not impose any limitation on this.

[0061] In another embodiment, a lead tube may be connected to the energy storage chamber 111, through which the battery leads are led out, i.e., the lead outlet 112 is the outlet of the lead tube. The outlet of the lead tube faces the second end of the body 100, thereby preventing leakage from entering the energy storage chamber 111 through the lead tube.

[0062] The end of the lead tube connected to the energy storage cavity 111 can be located above the energy storage cavity 111 along the extension direction X, or to the side of the energy storage cavity 111 along the width direction Y. Because the outlet of the lead tube is toward the second end of the body 100, the lead tube can improve the convenience of the lead extraction position on the battery.

[0063] Specifically, the body 100 also includes: an energy storage component, a lead and a sealant. The energy storage component is arranged in the energy storage cavity 111, the lead passes through the outlet 112 and is connected to the energy storage component, and the sealant fills the outlet 112 to seal the gap between the lead and the outlet 112.

[0064] The energy storage component may include a battery, which is connected to each device that needs power through a lead to supply power to the entire device.

[0065] The sealant may be a curing glue, which may be first applied to the gap between the lead and the outlet 112 by dispensing to completely seal the gap between the lead and the outlet 112; the sealant may then be cured to fix the sealant between the lead and the outlet 112.

[0066] Among them, the sealant can be, for example, silicone sealant, polyurethane sealant, acrylic sealant, ethylene-propylene sealant, epoxy resin sealant, polysiloxane sealant, etc.; of course, a caulking material can also be used to directly seal the gap between the lead wire and the outlet 112, and the present disclosure does not limit this.

[0067] Specifically, the energy storage cavity 111 can be formed by a receiving groove formed on the body 110 and a cover plate matching the receiving groove. After the battery is assembled in the receiving groove, the cover plate is then snapped onto the opening of the receiving groove to seal the battery in the energy storage cavity 111.

[0068] The cover plate and the receiving slot are detachably connected by screws to facilitate battery replacement and maintenance. A sealing rubber ring may be provided between the cover plate and the edge of the receiving slot opening to enhance the sealing effect of the cover plate on the receiving slot. Of course, the cover plate may also be fixedly connected to the receiving slot opening by bonding, welding, or other methods, or by snap-fitting, etc., and this disclosure does not limit this.

[0069] Specifically, the cleaning base 200 is hinged to the body 100, such as a pivot connection, a ball head connection, etc.; when the user holds the handle assembly 300 to control the cleaning base 200 to move on the surface to be cleaned, by hingedly connecting the cleaning base 200 to the body 100, the relative angle between the body 100 and the cleaning base 200 can be adjusted, thereby changing the operating angle and flexibly adjusting the cleaning posture to facilitate the cleaning operation.

[0070] The machine body 100 and the cleaning base 200 are rotatably connected via a rotating shaft assembly, so that the machine body 100 can be switched between a standing position and a lying position.

[0071] Specifically, the cleaning base 200 includes a cleaning component located at its bottom, such as a cleaning roller. The cleaning roller is disposed on the bottom wall of the bottom shell and is exposed from the bottom wall. The bottom surface of the cleaning roller is closer to the surface to be cleaned than the bottom shell. When the cleaning roller contacts the surface to be cleaned, a gap is provided between the bottom shell and the surface to be cleaned to prevent wear of the bottom shell. The number of cleaning rollers can be, for example, one, two, or more, and the cleaning rollers are capable of rotating at high speed to mop the floor.

[0072] Among them, the cleaning roller can be composed of a rotating shaft and a cleaning cloth wrapped on the surface of the rotating shaft. The rotating shaft rotates at high speed under the drive to drive the cleaning surface to rotate at a high speed, thereby performing high-rotational friction cleaning on the surface to be cleaned; the cleaning cloth can be detachably connected to the rotating shaft, which is convenient for replacing the cleaning cloth and improves the maintenance economy of the cleaning roller.

[0073] Specifically, a first roller is provided at the bottom of the cleaning base 200. The first roller is provided on the side of the bottom of the cleaning base 200 away from the cleaning roller. The roller axis of the first roller and the rotating axis of the cleaning roller can be set parallel to each other. By setting the first roller, it plays an auxiliary movement role when the user controls the cleaning base 200 to move on the surface to be cleaned, thereby avoiding friction between the base shell and the surface to be cleaned.

[0074] Among them, a second roller can be set at the bottom of the cleaning base 200 near the cleaning roller. The second roller has a relatively smaller diameter to assist the movement of the cleaning base 200 and the rotation of the cleaning roller. The second roller can support the base shell near the cleaning roller, thereby reducing the resistance when the user operates the cleaning base 200 to move.

[0075] Specifically, a liquid supply pump and a liquid spray assembly are provided on the cleaning base 200. A liquid spray inlet and multiple liquid spray ports are provided on the liquid spray assembly. The liquid spray inlet is connected to the multiple liquid spray ports. The cleaning liquid in the clean water tank 120 flows into the liquid spray assembly through the drive of the liquid supply pump, and the cleaning roller is sprayed with liquid through the multiple liquid spray ports of the liquid spray assembly.

[0076] Among them, a plurality of liquid spraying ports are sequentially arranged along the axial direction of the cleaning roller, and the cleaning liquid is sprayed on each position along the axial direction of the cleaning roller to enhance the wetting effect on the cleaning roller.

[0077] Embodiments of the present disclosure also provide a cleaning system, as shown in FIG4 . The cleaning system includes a base station 20 and the cleaning device 10 provided in the above embodiments. After use, the floor scrubber is typically returned to the base station 20 for support. The cleaning device 10 can be self-cleaned on the base station 20, such as automatically cleaning the cleaning roller.

[0078] Specifically, a charging port is provided on the cleaning base 200 of the cleaning device 10, and a charging connector is provided on the base station 20. When the cleaning device 10 is returned to the base station 20 after use, the charging port on the cleaning base 200 is plugged into the charging connector on the base station 20 to charge the cleaning device 10 through the base station 20.

[0079] Specifically, the base station 20 also includes: a drying module, which is configured to provide airflow; an air outlet of the drying module is provided on the shell of the base station 20, and the drying module outputs airflow from the air outlet through the drying air duct to dry the cleaning roller; the airflow output by the drying module through the air outlet can be normal temperature airflow or heated airflow, and the use of heated airflow is more conducive to the drying of the cleaning roller.

[0080] Specifically, the cleaning base 200 of the cleaning device 10 and the housing of the base station 20 are provided with mutually cooperating positioning structures to assist the cleaning device 10 in being placed back on the base station 20 in a preset position after use.

[0081] Among them, the positioning structure can be, for example, a positioning recess provided on the cleaning base 200 and a positioning protrusion provided on the base station 20. Through the cooperation of the positioning protrusion and the positioning groove, the relative positioning of the floor scrubber is achieved when it is put back on the base station 20; multiple groups of positioning protrusions and positioning grooves can be provided to further enhance the role of auxiliary positioning; or, the positioning structure can be a roller on the cleaning base 200 and a receiving groove for accommodating the roller provided on the base station 20, so as to achieve rapid positioning of the cleaning device 10 when it is put back on the base station 20.

[0082] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

[0083] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A body for a cleaning device, comprising: A body main body, the body main body including opposite first and second ends in its extending direction, the second end being used for connecting to a cleaning base; a storage cavity is formed on the body main body, and the storage cavity is used for accommodating a storage component; Wherein, an outlet is formed on the body main body and communicates with the storage cavity, and the outlet faces the second end.

2. The body according to claim 1, wherein, The outlet is located on one side of the storage cavity close to the second end.

3. The body according to claim 2, wherein, The outlet is formed on the bottom wall of the storage cavity.

4. The body according to claim 3, wherein, The body main body forms an extension portion extending from the bottom wall towards the second end in the edge area of the outlet.

5. The body according to claim 4, wherein, The extension portion is annular.

6. The body according to any one of claims 1-5, wherein In the width direction perpendicular to the extending direction, the outlet is located at the middle part of the body main body.

7. The body according to any one of claims 1-5, wherein, A plurality of the outlets are formed on the body main body.

8. The body according to any one of claims 1-5, wherein, The body further includes: A storage component, the storage component being disposed in the storage cavity; A lead wire, the lead wire passing through the outlet and connecting to the storage component; Sealant, the sealant being filled between the lead wire and the outlet to seal the gap between the lead wire and the outlet.

9. A cleaning device, comprising: The body according to any one of claims 1 to 8; And A cleaning base, the cleaning base being rotatably connected to the body.

10. A cleaning system, comprising: The cleaning device according to claim 9; A base station, the base station being configured to support the cleaning device.

Images