A pool cleaning robot with easy-to-replace batteries

Abstract

This invention belongs to the technical field of pool cleaning equipment and discloses a pool cleaning robot with convenient battery replacement. It includes a main body with a waste bin and a top-opening ejection chamber. The waste bin is connected to the outside through a suction port. The bottom of the main body has wheels. A cable reel assembly and a battery module are sequentially installed inside the ejection chamber. The battery module is located at the top opening and acts as a buoyancy component. A wire is wound around the cable reel assembly, with one end electrically connected to the main body and the other end wound around the cable reel assembly and electrically connected to a waterproof sealing plug. The battery module and the waterproof sealing plug are detachably connected. The invention also includes a control component connected to both the cable reel assembly and the battery module. When the power is depleted, the battery module can detach from the machine and float on the water surface. Users can directly replace the battery with a fully charged one, eliminating the need for waiting or retrieval, and allowing the robot to continue working immediately, improving user experience and cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of pool cleaning equipment technology, and more specifically to a pool cleaning robot with easily replaceable batteries. Background Technology

[0002] With the rapid development of the times, many families can install swimming pools (including underground and above-ground swimming pools) at home. Swimming pools are places for people to have fun and play. However, whether it is an outdoor pool or an indoor pool, after a period of use, some garbage or bacteria will be generated at the bottom of the pool. In particular, dirt is adsorbed at the bottom of the pool, and normal circulation and filtration cannot effectively clean it. Therefore, the pool needs to be cleaned regularly.

[0003] Pool cleaning robots (including above-water and underwater robots) can perform pool cleaning tasks. Most common pool robots on the market are wireless and powered by batteries. However, their biggest drawback is their short battery life. When the robot runs out of power, users need to retrieve it and charge it for a long time. During this time, the pool may not be cleaned properly, resulting in low cleaning efficiency and a poor user experience. Summary of the Invention

[0004] To address the technical problems in existing technologies, this invention provides a pool cleaning robot with a convenient battery replacement feature. This eliminates the tedious process of users frequently retrieving the robot from the water to recharge it. When the battery is depleted, the battery pack detaches from the machine and floats on the surface, allowing users to directly replace it with a fully charged battery pack without waiting or retrieving it, thus improving user experience and cleaning efficiency.

[0005] The technical solution includes a main body, which contains a waste bin and a top-opening ejection chamber. The waste bin is located on one side of the ejection chamber and is connected to the outside through a suction port. The bottom of the main body is equipped with wheels. A cable reel assembly and a battery module are sequentially installed inside the ejection chamber. The battery module is located at the top opening and is a buoyancy component. A wire is wound around the cable reel assembly. One end of the wire is electrically connected to the main body, and the other end is wound around the cable reel assembly and electrically connected to a waterproof sealing plug. The battery module and the waterproof sealing plug are detachably connected.

[0006] It also includes a control component, which is connected to the winding assembly and the battery module respectively. When the battery module has sufficient power, the control component controls the winding assembly to wind up the wire. The waterproof sealing plug and the battery module are located in the ejection chamber under the action of the winding assembly. When the battery module has insufficient power, the control component controls the winding assembly to release the wire, and the waterproof sealing plug and the battery module are disengaged from the ejection chamber.

[0007] Preferably, the main body is further provided with a sealed chamber and a spray nozzle. The sealed chamber is located on the side of the ejection chamber away from the waste chamber. The spray nozzle is located above the sealed chamber and is connected to the outside. A water spray motor connected to the control component is installed on the top of the sealed chamber. The output shaft of the water spray motor extends through the sealed chamber and into the spray nozzle. The output shaft of the water spray motor and the sealed chamber are dynamically sealed.

[0008] Preferably, the control component includes a winding motor and a control system. The winding motor is fixedly installed outside the ejection chamber, and the output shaft of the winding motor passes through the ejection chamber and is fixedly connected to the winding assembly. The winding assembly is rotatably connected to the inner wall of the ejection chamber under the drive of the winding motor. The control system is installed inside the sealed chamber and is electrically connected to the winding motor through a wire.

[0009] Preferably, the winding assembly includes a shaft, a drum, and a rotary joint. One end of the drum is fixedly connected to the output shaft of the winding motor, and the other end is rotatably connected to the inner wall of the ejection chamber through the shaft. The rotary joint is rotatably installed inside the drum. The wire is wound on the drum, and one end of the wire is electrically connected to the main body through the rotary joint.

[0010] Preferably, the battery module includes a housing, a battery pack, and a buoyancy plate. The buoyancy plate is disposed on the housing, and the battery pack is detachably connected to the housing. The bottom of the housing is provided with a socket that mates with a waterproof sealing plug, and the socket is provided with a connector that is electrically connected to the battery pack.

[0011] Preferably, the ejection chamber is further provided with an elastic component, which is installed between the cable winding assembly and the battery module. The elastic component includes a fixed plate, a spring, and a movable plate. The fixed plate is fixedly installed in the ejection chamber and located above the cable winding assembly. The movable plate is slidably installed in the ejection chamber. The two ends of the spring are fixedly connected to the fixed plate and the movable plate, respectively. Both the fixed plate and the movable plate are provided with through holes for wires to pass through. The wire passes through the two through holes in sequence and is electrically connected to the waterproof sealing plug.

[0012] Preferably, the inner wall of the ejection chamber is provided with a limiting block for restricting the movable plate, and the limiting block is located near the top opening.

[0013] Preferably, the waterproof sealing plug is provided with a buoyancy plate.

[0014] Preferably, the opening of the ejection compartment is provided with a sloping surface to facilitate the assembly and disassembly of the battery module.

[0015] Beneficial effects:

[0016] 1. This invention, through the design of an ejection chamber, a reel assembly, a battery module, and a control component, solves the cumbersome process of frequent retrieval and charging for users. When the battery is low or depleted, the battery module detaches from the machine and floats on the water's surface, allowing users to directly replace it with a fully charged battery pack. After replacement, the battery module can be immediately retracted into the ejection chamber, eliminating the need for waiting and retrieval, and allowing the machine to continue working immediately, improving user experience and cleaning efficiency. Furthermore, even if users need to retrieve the machine, no hook is required; simply pulling the power cord pulls the machine out of the water and onto the shore, saving users unnecessary steps. Specifically, the pool cleaning robot operates under low battery conditions. In this state, the robot will automatically lean against the wall. When the pool cleaning robot is about to shut down, the control component of the pool cleaning robot releases a signal to the detection circuit of the winding component, causing the winding component to stop winding. After losing the traction of the winding component, the waterproof sealing plug and battery module will separate from the ejection chamber. Then, the battery module will float on the water surface under the action of buoyancy. The user can pull the battery module ashore, unscrew the waterproof sealing plug, reinsert the fully charged battery pack, and then put it back on the water. After receiving the electrical signal, the control component controls the winding component to start winding and pull the waterproof sealing plug and battery module back into the ejection chamber.

[0017] 2. This invention incorporates a water spray motor and control system within a sealed chamber, and a cable winding assembly within an ejection chamber, which is located on one side of the sealed chamber. This design achieves waterproofing while reducing the overall size of the pool cleaning robot. Furthermore, the rotary joint ensures electrical connection during rotation, preventing damage to the power cord.

[0018] 3. The present invention enables the outer casing and battery pack to float quickly out of the water by setting a buoyancy plate in the battery module; by setting an elastic component including a fixed plate, a spring and a movable plate, the elastic force of the spring can be used to push the movable plate to quickly disengage the waterproof sealing plug and the battery module from the ejection chamber, avoiding jamming; combined with the setting of the limiting block, the movable plate can be prevented from disengaging from the ejection chamber.

[0019] 4. The present invention features an inclined surface at the opening of the ejection compartment to facilitate the disassembly and assembly of the battery module, which enables the battery module to be easily detached and recycled. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention when the power is sufficient;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention when the power is insufficient;

[0022] Figure 3 for Figure 1 Detailed structural diagram of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the battery module structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation structure of the winding assembly of the present invention.

[0025] In the diagram: 1. Main body; 11. Ejection chamber; 111. Limiting block; 12. Sealed chamber; 121. Spray nozzle; 122. Water spray motor; 13. Waste chamber; 131. Suction port; 14. Wheels; 2. Cable winding assembly; 21. Shaft; 22. Drum; 23. Rotary joint; 3. Elastic component; 31. Fixed plate; 32. Spring; 33. Movable plate; 4. Battery module; 41. Outer shell; 42. Battery pack; 43. Buoyancy plate; 44. Socket; 5. Wire; 6. Waterproof sealing plug; 7. Cable winding motor; 8. Control system. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] This invention provides a pool cleaning robot with easily replaceable batteries, such as... Figures 1 to 5 As shown, the device includes a main body 1, which contains a waste bin 13 and a top-opening ejection chamber 11. The waste bin 13 is located on one side of the ejection chamber 11 and is connected to the outside through a suction port 131. The bottom of the main body 1 is equipped with wheels 14, which enable the pool cleaning robot to move freely. The suction port 131 and the waste bin 13 are used to clean up the waste in the pool. A cord reel assembly 2 and a battery module 4 are sequentially installed inside the ejection chamber 11. Preferably, the ejection chamber 11 also contains an elastic component. 3. The elastic component 3 is installed between the winding assembly 2 and the battery module 4. The battery module 4 is located at the top opening and is a buoyancy component. The winding assembly 2 is wound with an electric wire 5. One end of the electric wire 5 is electrically connected to the main body 1, and the other end is wound on the winding assembly 2 and passes through the elastic component 3 to be electrically connected to the waterproof sealing plug 6. The battery module 4 and the waterproof sealing plug 6 are detachably connected. The waterproof sealing plug 6 is an aviation plug. The waterproof sealing plug 6 is provided with a buoyancy plate 43 to facilitate its floating on the water surface.

[0028] It also includes a control component, which is connected to the winding assembly 2 and the battery module 4 respectively. When the battery module 4 has sufficient power, the control component controls the winding assembly 2 to wind up the wire 5. Under the action of the winding assembly 2, the waterproof sealing plug 6 and the battery module 4 overcome the elastic force of the elastic component 3 and are located in the ejection chamber 11. When the battery module 4 has insufficient power, the control component controls the winding assembly 2 to release the wire 5. Under the action of the elastic force of the elastic component 3, the waterproof sealing plug 6 and the battery module 4 detach from the ejection chamber 11. To further facilitate battery replacement for the pool cleaning robot, when the pool cleaning robot has insufficient power and before the battery module 4 detaches from the ejection chamber 11, the pool cleaning robot will automatically move towards the edge of the pool. This can be achieved through sensors or infrared positioning.

[0029] In this embodiment, the arrangement of the ejection chamber 11, the cable reel assembly 2, the elastic component 3, the battery module 4, and the control component solves the cumbersome process of frequent retrieval and charging for users. When the battery is low or depleted, the battery module 4 detaches from the machine and floats on the water surface, allowing users to directly replace it with a fully charged battery pack 42. After replacement, the battery module 4 can be directly retracted into the ejection chamber 11 without waiting or retrieval, allowing the machine to continue working immediately, improving user experience and cleaning efficiency. Furthermore, even if users need to retrieve the machine, no hook is required; simply pulling the cable 5 pulls the machine out of the water and onto the shore, saving users unnecessary steps. Specifically, the pool cleaning robot automatically leans against a wall when the battery is low. When the pool cleaning robot is about to shut down, the control component of the pool cleaning robot releases a signal to the detection circuit of the winding assembly 2, causing the winding assembly 2 to stop winding. After the waterproof sealing plug 6 and the battery module 4 lose the traction of the winding assembly, the elastic component 3 in the ejection chamber 11 will quickly eject the entire waterproof sealing plug 6 and battery module 4, separating them from the ejection chamber 11. Then, the battery module 4 will float on the water surface under the action of buoyancy. The user can pull the battery module to the shore, then unscrew the waterproof sealing plug 6, reinsert the fully charged battery pack 42, and then put it back on the water surface. After receiving the electrical signal, the control component controls the winding assembly 2 to start winding and pulls the waterproof sealing plug 6 and battery module back into the ejection chamber 11.

[0030] Preferred, such as Figure 1 , Figure 2 and Figure 5As shown, the main body 1 also includes a sealed chamber 12 and a spray nozzle 121. The sealed chamber 12 is located on the side of the ejection chamber 11 away from the waste chamber 13. The spray nozzle 121 is located above the sealed chamber 12 and communicates with the outside. A water spray motor 122 connected to the control assembly is installed on the top of the sealed chamber 12. The output shaft of the water spray motor 122 extends through the sealed chamber 12 and into the spray nozzle 121. The output shaft of the water spray motor 122 and the sealed chamber 12 are dynamically sealed. The control assembly includes a winding motor 7 and a control system 8. The winding motor 7 is fixedly installed outside the ejection chamber 11, and the output shaft of the winding motor 7 extends through the ejection chamber 11 and is fixed to the winding assembly 2. The connection includes a bearing at the connection between the output shaft of the winding motor 7 and the ejection chamber 11 to reduce frictional resistance. The winding assembly 2 is rotatably connected to the inner wall of the ejection chamber 11 under the drive of the winding motor 7. The control system 8 is installed inside the sealed chamber 12 and is electrically connected to the winding motor 7 via a wire. The winding assembly 2 includes a rotating shaft 21, a drum 22, and a rotary joint 23. One end of the drum 22 is fixedly connected to the output shaft of the winding motor 7, and the other end is rotatably connected to the inner wall of the ejection chamber 11 via the rotating shaft 21. The rotary joint 23 is rotatably installed inside the drum 22. The wire 5 is wound on the drum 22, and one end of the wire 5 is electrically connected to the main body 1 via the rotary joint 23.

[0031] In this embodiment, the water spray motor 122 and the control system 8 are installed inside the sealed chamber 12, and the cable winding assembly 2 is installed inside the ejection chamber 11. The ejection chamber 11 is located on one side of the sealed chamber 12, which can reduce the overall size of the pool cleaning robot while achieving waterproofing. Combined with the setting of the rotary joint 23, the electrical connection can be maintained during rotation to prevent the wire 5 from being twisted.

[0032] Preferred, such as Figure 1 , Figure 2 and Figure 4 As shown, the battery module 4 includes a housing 41, a battery pack 42, and a buoyancy plate 43. The buoyancy plate 43 is disposed on the housing 41. The battery pack 42 is detachably connected to the housing 41. The bottom of the housing 41 is provided with a socket 44 that mates with the waterproof sealing plug 6. A connector for electrical connection with the battery pack 42 is provided inside the socket 44. Figure 3 As shown, the elastic component 3 includes a fixed plate 31, a spring 32, and a movable plate 33. The fixed plate 31 is fixedly installed inside the ejection chamber 11 and is located above the winding assembly 2. The movable plate 33 is slidably installed inside the ejection chamber 11. The two ends of the spring 32 are fixedly connected to the fixed plate 31 and the movable plate 33, respectively. Both the fixed plate 31 and the movable plate 33 are provided with through holes for the wire 5 to pass through. The inner wall of the ejection chamber 11 is provided with a limiting block 111 for restricting the movable plate 33. The limiting block 111 is located near the top opening.

[0033] In this embodiment, the buoyancy plate 43 in the battery module 4 allows the outer casing 41 and the battery pack 42 to float quickly out of the water. The fixed plate 31, spring 32 and movable plate 33 allow the spring force of the spring 32 to push the movable plate 33 to quickly detach the waterproof sealing plug 6 and the battery module 4 from the ejection chamber 11, avoiding jamming. Combined with the setting of the limiting block 111, the movable plate 33 can be prevented from detaching from the ejection chamber 11.

[0034] Preferred, such as Figure 1 , Figure 2 As shown, the opening of the ejection chamber 11 is provided with a sloping surface to facilitate the assembly and disassembly of the battery module 4.

[0035] In this embodiment, the opening of the ejection chamber 11 is provided with an inclined surface that facilitates the assembly and disassembly of the battery module 4, which makes it easy for the battery module 4 to detach and be recycled.

[0036] The work process, such as Figures 1 to 5 As shown, when the pool cleaning robot is low on power and moves to the side, the reel motor 7 stops winding the drum 22, causing the spring 32 assembly in the ejection chamber 11 and the battery module 4 to instantly lose traction, thus ejecting the battery module 4 into the machine. Under the action of the internal buoyancy plate 43, the battery module 4 floats to the water surface. The user can unscrew the waterproof sealing plug 6 to pull out the battery module 4. When the user reinserts the fully charged battery module 4 into the waterproof sealing plug 6, the pool cleaning robot will receive an electrical signal after a short while. Then the reel motor 7 will continue to work, rotating to drive the drum 22 to reel in the power cord 5 outside the pool cleaning robot. The battery module 4 will also return to the machine under the pulling force. After the battery module 4 is back in place, the reel motor 7 will maintain the force, and then the machine will continue cleaning.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A pool cleaning robot with easily replaceable batteries, comprising a main body (1), wherein the main body (1) has a waste bin (13) and a top-opening ejection chamber (11), the waste bin (13) is located on one side of the ejection chamber (11), the waste bin (13) is connected to the outside through a suction port (131), and the bottom of the main body (1) is provided with wheels (14), characterized in that, The ejection chamber (11) is equipped with a winding assembly (2) and a battery module (4) in sequence. The battery module (4) is located at the top opening and is a buoyancy component. The winding assembly (2) is wrapped with a wire (5). One end of the wire (5) is electrically connected to the main body (1), and the other end is wrapped around the winding assembly (2) and electrically connected to the waterproof sealing plug (6). The battery module (4) and the waterproof sealing plug (6) are detachably connected. It also includes a control component, which is connected to the winding assembly (2) and the battery module (4) respectively. When the battery module (4) has sufficient power, the control component controls the winding assembly (2) to wind up the wire (5). The waterproof sealing plug (6) and the battery module (4) are located in the ejection chamber (11) under the action of the winding assembly (2). When the battery module (4) has insufficient power, the control component controls the winding assembly (2) to release the wire (5). The waterproof sealing plug (6) and the battery module (4) are disengaged from the ejection chamber (11). When the pool cleaning robot has insufficient power and before the battery module (4) is disengaged from the ejection chamber (11), the pool cleaning robot will automatically move to the edge of the pool.

2. The pool cleaning robot with easily replaceable batteries according to claim 1, characterized in that, The main body (1) is also provided with a sealed chamber (12) and a spray nozzle (121). The sealed chamber (12) is located on the side of the ejection chamber (11) away from the garbage chamber (13). The spray nozzle (121) is located above the sealed chamber (12) and is connected to the outside. A water spray motor (122) connected to the control component is installed on the top of the sealed chamber (12). The output shaft of the water spray motor (122) extends through the sealed chamber (12) and into the spray nozzle (121). The output shaft of the water spray motor (122) and the sealed chamber (12) are dynamically sealed.

3. A pool cleaning robot with easily replaceable batteries according to claim 2, characterized in that, The control components include a winding motor (7) and a control system (8). The winding motor (7) is fixedly installed outside the ejection chamber (11), and the output shaft of the winding motor (7) passes through the ejection chamber (11) and is fixedly connected to the winding assembly (2). The winding assembly (2) is rotatably connected to the inner wall of the ejection chamber (11) under the drive of the winding motor (7). The control system (8) is installed inside the sealed chamber (12), and the control system (8) is electrically connected to the winding motor (7) through a wire.

4. A pool cleaning robot with easily replaceable batteries according to claim 3, characterized in that, The winding assembly (2) includes a rotating shaft (21), a drum (22) and a rotary joint (23). One end of the drum (22) is fixedly connected to the output shaft of the winding motor (7), and the other end is rotatably connected to the inner wall of the ejection chamber (11) through the rotating shaft (21). The rotary joint (23) is rotatably installed inside the drum (22). The wire (5) is wound on the drum (22), and one end of the wire (5) is electrically connected to the body (1) through the rotary joint (23).

5. A pool cleaning robot with easily replaceable batteries according to claim 1 or 2, characterized in that, The battery module (4) includes a housing (41), a battery pack (42) and a buoyancy plate (43). The buoyancy plate (43) is disposed on the housing (41). The battery pack (42) is detachably connected to the housing (41). The bottom of the housing (41) is provided with a socket (44) that mates with a waterproof sealing plug (6). The socket (44) is provided with a connector that is electrically connected to the battery pack (42).

6. A pool cleaning robot with easily replaceable batteries according to claim 1 or 2, characterized in that, The ejection chamber (11) is also provided with an elastic component (3). The elastic component (3) is installed between the winding assembly (2) and the battery module (4). The elastic component (3) includes a fixed plate (31), a spring (32) and a movable plate (33). The fixed plate (31) is fixedly installed in the ejection chamber (11) and located above the winding assembly (2). The movable plate (33) is slidably installed in the ejection chamber (11). The two ends of the spring (32) are fixedly connected to the fixed plate (31) and the movable plate (33) respectively. The fixed plate (31) and the movable plate (33) are both provided with through holes for the wire (5) to pass through. The wire (5) passes through the two through holes in sequence and is electrically connected to the waterproof sealing plug (6).

7. A pool cleaning robot with easily replaceable batteries according to claim 6, characterized in that, The inner wall of the ejection chamber (11) is provided with a limiting block (111) for restricting the movable plate (33), and the limiting block (111) is located near the top opening.

8. A pool cleaning robot with easily replaceable batteries according to claim 1 or 2, characterized in that, The waterproof sealing plug (6) is provided with a buoyancy plate (43).

9. A pool cleaning robot with easily replaceable batteries according to claim 1 or 2, characterized in that, The opening of the ejection chamber (11) is provided with a sloping surface to facilitate the assembly and disassembly of the battery module (4).

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