Replaceable battery mechanism of swimming pool cleaning robot
By designing a replaceable battery mechanism, and using a battery module with a U-shaped protrusion and a U-shaped groove for insertion and connection, the problems of cumbersome battery replacement and water leakage in the existing technology are solved, realizing quick battery disassembly and maintenance, and improving convenience and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-14
AI Technical Summary
The battery replacement and maintenance of existing pool cleaning robots is cumbersome, and the disassembly and assembly operations are prone to water seepage and leakage, which affects the robot's performance and lifespan.
Design a replaceable battery mechanism, including a bottom shell and a battery module, which uses a spiral ridge and a spiral groove for interlocking and is fixed with screws to achieve a reliable seal of the battery module, facilitating battery disassembly, assembly, and maintenance.
It enables quick battery replacement and maintenance, avoids water leakage caused by disassembly and assembly, and improves the robot's service life and maintenance convenience.
Smart Images

Figure CN224123456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a swimming pool cleaning robot, and more particularly to a replaceable battery mechanism for a swimming pool cleaning robot. Background Technology
[0002] Pool robots are devices that operate in swimming pools to collect and clean up foreign objects. They are powered by batteries. Because the water resistance is significant when the robot is moving and cleaning, its internal batteries are usually operating at high power. However, the batteries in existing pool cleaning robots are generally hidden and fixed inside the shell. As the robot works over time, the performance of the battery system gradually decreases. Especially when water leakage or battery aging occurs, the entire robot needs to be disassembled to replace the battery, making maintenance cumbersome. Moreover, these maintenance tasks can easily cause poor sealing of the robot shell, which in turn affects the robot's performance and lifespan. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a replaceable battery mechanism that is convenient for disassembling and replacing batteries and does not require the overall disassembly of the pool cleaning robot, in order to address the shortcomings of the existing technology.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.
[0005] A replaceable battery mechanism for a pool cleaning robot includes a bottom shell and a battery module. The bottom shell contains a battery compartment, and the bottom of the bottom shell has a battery mounting port corresponding to the battery compartment. The battery module includes an inner shell, a base plate, and a battery. A U-shaped groove is formed on the top surface of the base plate, and a U-shaped protrusion is formed on the opening edge of the lower end of the inner shell. The U-shaped protrusion is inserted into the U-shaped groove and the two are sealed together. The battery is fixed in the cavity formed by the inner shell and the base plate. The edge of the base plate has a cover extending outward relative to the U-shaped groove. The inner shell is inserted into the battery compartment, and the cover covers the edge of the battery mounting port. The cover and the bottom shell are fixedly connected by screws and are sealed together.
[0006] Preferably, at least one side of the inner shell is formed with a stepped opening, and the bottom or side of the stepped opening is provided with a mounting hole for installing an electrical connector.
[0007] Preferably, the edge of the base plate has a plurality of outwardly protruding fixing lugs, and the edge of the battery mounting port has a plurality of lug slots, the fixing lugs and the lug slots are corresponding one to one, and the fixing lugs are engaged in the lug slots.
[0008] Preferably, the fixing lug has a screw hole, and the fixing lug is fixedly connected to the edge of the battery mounting port by a screw passing through the screw hole.
[0009] Preferably, the bottom surface of the base plate is flush with the bottom surface of the bottom shell.
[0010] Preferably, the battery compartment is provided with a waterproof power cord that is connected to the battery.
[0011] In the replaceable battery mechanism of the pool cleaning robot disclosed in this utility model, the bottom shell has a sealed battery compartment. The inner shell portion of the battery module is inserted into the battery compartment through the battery mounting port. Simultaneously, the cover portion is fixedly connected to the bottom shell with screws. The battery module is a sealed module. The inner shell and the bottom plate are matched by the interlocking of the U-shaped protrusion and the U-shaped groove, which not only ensures reliable fixation but also guarantees good airtightness of the cavity formed by the inner shell and the bottom plate, thus protecting the battery. When the battery performance deteriorates, the battery module can be disassembled simply by removing the screws of the cover portion. The assembly process is equally simple and convenient. Battery maintenance does not require disassembling the robot's casing, avoiding water seepage or leakage caused by disassembly operations, thus better meeting application requirements. Attached Figure Description
[0012] Figure 1 A 3D view of a pool cleaning robot;
[0013] Figure 2 This is a 3D view of the battery module;
[0014] Figure 3 This is an exploded view of the battery module;
[0015] Figure 4 Cross-sectional view of a pool cleaning robot
[0016] Figure 5 This is a diagram of the internal structure of a pool cleaning robot. Detailed Implementation
[0017] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.
[0018] This utility model discloses a replaceable battery mechanism for a pool cleaning robot, combined with Figures 1 to 4As shown, it includes a bottom shell 1 and a battery module 2. The bottom shell 1 has a battery compartment 10 inside, and the bottom of the bottom shell 1 has a battery mounting port 11 corresponding to the battery compartment 10. The battery module 2 includes an inner shell 20, a bottom plate 21 and a battery 22. The top surface of the bottom plate 21 forms a U-shaped groove 23, and the lower opening edge of the inner shell 20 forms a U-shaped protrusion 24. The U-shaped protrusion 24 is inserted into the U-shaped groove 23 and the two are sealed together. The battery 22 is fixed in the cavity formed by the inner shell 20 and the bottom plate 21. The edge of the bottom plate 21 forms a cover portion 25 that extends outward relative to the U-shaped groove 23. The inner shell 20 is inserted into the battery compartment 10, and the cover portion 25 covers the edge of the battery mounting port 11. The cover portion 25 and the bottom shell 1 are fixedly connected by screws and the two are sealed together.
[0019] In the above structure, the bottom shell 1 has a sealed battery compartment 10. The inner shell 20 of the battery module 2 is inserted into the battery compartment 10 through the battery mounting port 11. The cover 25 is fixedly connected to the bottom shell 1 with screws. The battery module 2 is a sealed module. The inner shell 20 and the bottom plate 21 are matched by the interlocking of the spiral protrusion 24 and the spiral groove 23, which not only ensures reliable fixation but also guarantees good airtightness of the cavity formed by the inner shell 20 and the bottom plate 21, thus protecting the battery 22. When the performance of the battery 22 deteriorates, the battery module 2 can be disassembled simply by removing the screws from the cover 25. The assembly process is also simple and convenient. Battery maintenance does not require disassembling the robot's casing, avoiding water seepage or leakage caused by disassembly and assembly operations, thus better meeting application requirements.
[0020] In practical applications, the spiral ridge 24 and the spiral groove 23 can be fixed together by ultrasonic welding.
[0021] As a preferred method, please refer to Figure 2 and Figure 3 The inner shell 20 has a stepped opening 26 on at least one side, and the bottom or side of the stepped opening 26 has a mounting hole 27 for installing an electrical connector. The stepped opening 26 provides installation space for the electrical connector and waterproof wiring.
[0022] In practical applications, a sealing gasket may be sandwiched between the base plate 21 and the spiral ridge 24.
[0023] Furthermore, the bottom surface of the base plate 21 is flush with the bottom surface of the bottom shell 1.
[0024] Regarding the preferred method of fixing the battery, in this embodiment, the edge of the base plate 21 is formed with a plurality of outwardly protruding fixing lugs 210, and the edge of the battery mounting port 11 is provided with a plurality of lug slots 110. The fixing lugs 210 correspond one-to-one with the lug slots 110, and the fixing lugs 210 are engaged in the lug slots 110.
[0025] For ease of assembly and disassembly, screws are preferably used for fixing in this embodiment. Specifically, the fixing lug 210 is provided with screw holes 211, and the fixing lug 210 and the edge of the battery mounting port 11 are fixedly connected by screws passing through the screw holes 211.
[0026] Please see Figure 5 In this embodiment, the battery compartment 10 is provided with a waterproof power cable 19 connected to the battery 22.
[0027] In another embodiment of this utility model, the following structure may be optionally added: the inner wall of the battery compartment has multiple reinforcing ribs, which abut against the outer wall of the inner shell. The tight abutment between the multiple reinforcing ribs and the outer wall of the inner shell allows the battery module to be reliably fixed within the battery compartment. Furthermore, the reinforcing ribs on the side wall of the battery compartment are vertically arranged. Further, the lower end of each reinforcing rib on the side wall of the battery compartment has a wedge-shaped portion. In the above structure, the wedge-shaped portion at the lower end of each reinforcing rib facilitates guiding the inner shell into the battery compartment, and the vertically arranged reinforcing ribs can slide well against the inner shell. To improve the connection tightness and sealing between the battery module and the battery mounting port, in this embodiment, the battery mounting port includes a stepped edge, and the base plate is fitted inside the stepped edge.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. A replaceable battery mechanism for a pool cleaning robot, characterized in that, The device includes a bottom shell and a battery module. The bottom shell contains a battery compartment, and the bottom of the bottom shell has a battery mounting port corresponding to the battery compartment. The battery module includes an inner shell, a bottom plate, and a battery. The top surface of the bottom plate has a U-shaped groove, and the lower edge of the inner shell has a U-shaped protrusion. The U-shaped protrusion is inserted into the U-shaped groove and the two are sealed together. The battery is fixed in the cavity formed by the inner shell and the bottom plate. The edge of the bottom plate has a cover extending outward relative to the U-shaped groove. The inner shell is inserted into the battery compartment, and the cover covers the edge of the battery mounting port. The cover and the bottom shell are fixedly connected by screws and are sealed together.
2. The replaceable battery mechanism for the pool cleaning robot as described in claim 1, characterized in that, At least one side of the inner shell is formed with a stepped opening, and the bottom or side of the stepped opening is provided with a mounting hole for installing an electrical connector.
3. The replaceable battery mechanism for the pool cleaning robot as described in claim 1, characterized in that, The edge of the base plate has multiple outwardly protruding fixing lugs, and the edge of the battery mounting port has multiple lug slots. The fixing lugs correspond one-to-one with the lug slots, and the fixing lugs are engaged in the lug slots.
4. The replaceable battery mechanism for the pool cleaning robot as described in claim 3, characterized in that, The fixing lug has a screw hole, and the fixing lug is fixedly connected to the edge of the battery mounting port by a screw passing through the screw hole.
5. The replaceable battery mechanism for the pool cleaning robot as described in claim 1, characterized in that, The bottom surface of the base plate is flush with the bottom surface of the bottom shell.
6. The replaceable battery mechanism for the pool cleaning robot as described in claim 1, characterized in that, The battery compartment is equipped with a waterproof power cord that connects to the battery.