A battery box for a pool robot

By employing potting compound filling and magnetic fixing components in the battery box of the pool robot, the problem of poor waterproofing of the battery box has been solved, achieving higher waterproofing performance and circuit board protection, and extending the service life and safety of the battery box.

CN224367018UActive Publication Date: 2026-06-16YITUO ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YITUO ELECTRIC CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing battery boxes for pool robots are not waterproof enough, and the sealing rings are prone to aging, which leads to a decline in waterproof performance and affects the service life and safety of the battery boxes.

Method used

It adopts a hollow rectangular shell design, with a circuit board installed on the inner bottom wall. The battery holder and battery are fixed inside the shell. The shell is filled with potting compound to fill the gaps, and the potting compound is injected through the potting hole. Combined with magnetic fixing components and sealant, the sealing performance is improved. The wires are equipped with a limiting structure to prevent them from falling off.

🎯Benefits of technology

The improved waterproof performance of the battery box protects the circuit board and electronic components, prevents liquid ingress, extends the battery box's lifespan, and enhances communication stability and security.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224367018U_ABST
    Figure CN224367018U_ABST
Patent Text Reader

Abstract

The utility model discloses a battery box for swimming pool robot is used for providing power protection for swimming pool robot, including hollow rectangular casing, the inner bottom wall of casing is provided with circuit board, and is provided with electronic components on the circuit board, is provided with two battery fixing base in the casing, and two battery fixing base are arranged respectively on two opposite sides in the casing, and multiple groups of batteries that provide power for circuit board are arranged between two battery fixing base, and the casing is filled with pouring sealant, and the pouring sealant fills the gap between battery, electronic components, circuit board, and the top of casing and / or the position of the side near the top form the pouring glue hole that is convenient for pouring sealant to pour into. The utility model discloses a battery box for swimming pool robot, so that the staff can pour into pouring sealant in the casing through the pouring glue hole, so that the liquid of outside does not easily enter into the battery box, so that the circuit board and electronic components on the circuit board can be fully wrapped by pouring sealant.
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Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, especially battery waterproofing technology, and more specifically, to a battery box for a swimming pool robot. Background Technology

[0002] As people's living standards improve, their demands for quality of life are also increasing. Swimming pools, as important venues for leisure and recreation, require particularly careful cleaning. Traditional pool cleaning methods rely mainly on manual labor, which is not only inefficient and labor-intensive but also fails to guarantee consistent cleaning results. Therefore, pool robots have emerged, capable of automatically completing pool cleaning tasks and significantly improving cleaning efficiency and quality.

[0003] However, the waterproofing of the battery box has always been a critical technical challenge in the use of pool robots. As one of the core components of a pool robot, the battery box typically houses the battery pack that powers the robot. Since pool robots need to operate in water for extended periods, water ingress into the battery box can not only cause short circuits and damage to the batteries, but may even lead to safety accidents, severely impacting the lifespan and reliability of the pool robot.

[0004] While existing battery boxes offer some degree of waterproofing, their effectiveness remains inadequate. For example, Chinese invention patent 202510278847.4, published on April 25, 2025, describes a battery box comprising a body, a lid, and a sealing ring. The body has an opening at one end; the lid includes a first part and a second part, with the second part connected to the first part near the body. The first part seals the opening and encloses the body to form an accommodating space, while the second part is embedded within this space. The sealing ring is fitted onto the second part and sandwiched between the inner side of the body and the second part. The purpose is to waterproof the inside of the battery using the sealing ring. However, with prolonged use, the sealing ring is prone to aging and deformation, leading to a decline in waterproofing performance. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of the prior art and provide a battery box for a swimming pool robot to solve the problem of poor waterproof performance of existing swimming pool robot battery boxes.

[0006] The technical solution adopted by this utility model is to provide a battery box for a swimming pool robot, which provides power protection for the swimming pool robot. It includes a hollow rectangular shell, a circuit board is provided on the inner bottom wall of the shell, and electronic components are provided on the circuit board. Two battery holders are provided inside the shell, and the two battery holders are respectively provided on two opposite sides inside the shell. Multiple sets of batteries that provide power to the circuit board are provided between the two battery holders. The shell is filled with potting compound, which fills the gaps between the batteries, electronic components, and circuit board. A potting hole is formed on the top and / or side of the shell near the top to facilitate the filling of potting compound. An exhaust hole is formed on the top of the shell to expel air from the shell when potting compound is injected into the shell.

[0007] In one embodiment, the housing includes a fixing component, an upper housing with one end open, and a lower housing with one end open. The upper housing is detachably mounted on the lower housing via the fixing component, so that the lower housing and the upper housing enclose a closed space. The distance between the top of the upper housing and the connection point between the upper housing and the lower housing is greater than 5mm. This divides the housing into two parts, the upper housing and the lower housing, which facilitates the manufacturing of the battery box and improves production efficiency.

[0008] In one embodiment, the potting hole is located on the upper housing, and the distance between the potting hole and the connection between the upper and lower housings is greater than 5 mm, so that the potting compound can fully immerse the lower housing and the connection between the lower housings.

[0009] In one embodiment, a protrusion is formed at the end of the upper housing near the lower housing, and a groove is formed at the end of the lower housing near the upper housing for the protrusion to be inserted, thereby facilitating the fixing between the upper and lower housings and preventing misalignment of the lower and upper housings during installation.

[0010] In one embodiment, the fixing component includes a first connecting plate disposed on one side of the upper housing, and a second connecting plate disposed on the lower housing at the position corresponding to the first connecting plate. When the upper housing is installed on the lower housing, the first connecting plate and the second connecting plate abut against each other, and the first connecting plate and the second connecting plate are fixed by a fixing member, so that the relative positions of the protrusion and the groove will not easily change.

[0011] In one method, the connection between the upper and lower housings is filled with sealant to increase the housing's sealing performance.

[0012] In one approach, electronic components on the circuit board are connected to and communicate with external devices via wires. A wire outlet is formed on the side of the housing closest to the circuit board, and the end of the wire away from the circuit board extends out of the housing through the wire outlet, enabling the circuit board to communicate with external devices via wires, thereby improving the communication stability between the circuit board and external devices.

[0013] In one embodiment, a slot is formed at the wire outlet position on the housing in the direction away from the circuit board. A limiting member is provided in the slot, and the limiting member is sleeved outside the wire to prevent the wire from falling out of the housing.

[0014] In one embodiment, a flexible connector and / or a soft rubber protective layer are provided on the conductor near the outlet hole to prevent the conductor from swaying and shaking, which could cause the conductor to break during long-term swaying.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides a battery box for a swimming pool robot. Through the potting hole, the operator can pour potting compound into the shell, preventing external liquids from easily entering the battery shell. Furthermore, by placing the circuit board on the inner bottom wall of the shell, the circuit board and the electronic components on it can be fully wrapped by the potting compound, improving the protection effect of the circuit board and electronic components. Attached Figure Description

[0017] Figure 1 This is a front sectional view of a battery box for a swimming pool robot provided in Embodiment 1;

[0018] Figure 2 This is a cross-sectional view of the shell provided in Example 2;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0020] Label Explanation:

[0021] Housing 100, fixing component 101, metal part 1011, magnet 1012, first connecting plate 1013, second connecting plate 1014, fixing component 1015, upper housing 102, lower housing 103, protrusion 104, groove 105, sealant 106, potting hole 200, vent hole 201, circuit board 300, battery 400, potting compound 500, wire outlet hole 600, wire 700, limiting component 701, card slot 800, battery holder 900. Detailed Implementation

[0022] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] Example 1

[0024] like Figure 1-3As shown, this embodiment provides a battery box for a swimming pool robot, used to provide power protection for the swimming pool robot. It includes a hollow rectangular shell 100, with a circuit board 300 disposed on the inner bottom wall of the shell 100. The circuit board 300 houses electronic components such as a CPU and chips. Two battery holders 900 are disposed inside the shell 100, respectively located on two opposite sides of the shell 100. Multiple battery sets 400, providing power to the circuit board 300, are disposed between the two battery holders 900. The shell 100 is filled with TEDA potting compound and SP297 polyurethane potting compound, achieving a fire resistance rating of UL. The potting compound 500 of grade 94V0 fills the gaps between the battery 400, electronic components, and circuit board 300. The top and / or side of the housing 100 near the top has a potting hole 200 to facilitate the injection of the potting compound 500. The top of the housing 100 has a vent hole 201 to expel air from the housing 100 when the potting compound 500 is injected into the housing 100. It is foreseeable that when the potting compound 500 is about to fill the housing 100, in order to prevent the potting compound 500 from flowing out of the housing 100 through the vent hole 201 and thus causing waste, the potting compound 500 can be injected into the housing 100 through the vent hole 201.

[0025] Predictably, potting compound 500 can be injected through multiple potting holes 200 to improve the efficiency of potting compound 500 injection, and air inside housing 100 can also be emptied through multiple potting holes 200 to improve the efficiency of emptying air inside housing 100.

[0026] The housing 100 includes a fixing component 101, an upper housing 102 with one end open, and a lower housing 103 with one end open. The upper housing 102 is detachably mounted on the lower housing 103 via the fixing component 101, so that the lower housing 103 and the upper housing 102 enclose a closed space, and the distance between the top of the upper housing 102 and the connection point of the upper housing 102 and the lower housing 103 is greater than 5 mm. In a specific embodiment, a potting hole 200 is provided on the upper housing 102, and the distance between the potting hole 200 and the connection point of the upper housing 102 and the lower housing 103 is greater than 5 mm, so that the potting compound 500 can fully impregnate the connection point of the lower housing 102 and the lower housing 103.

[0027] To facilitate the fixing between the upper housing 102 and the lower housing 103 and prevent misalignment between the lower housing 103 and the upper housing 102 during installation, in a specific embodiment, a protrusion 104 is formed at the end of the upper housing 102 near the lower housing 103, and a groove 105 is formed at the end of the lower housing 103 near the upper housing 102 for the protrusion 104 to be inserted.

[0028] In one specific embodiment, the fixing component 101 includes a magnetic metal part 1011 such as iron, cobalt, or nickel disposed on the protrusion 104, and a magnet 1012 disposed in the groove 105. The magnet 1012 fixes the protrusion 104 in the groove 105 through the metal part 1011.

[0029] In one specific embodiment, the fixing component 101 includes a first connecting plate 1013 disposed on one side of the upper housing 102, and a second connecting plate 1014 disposed on the lower housing 103 corresponding to the position of the first connecting plate 1013. When the upper housing 102 is installed on the lower housing 103, the first connecting plate 1013 and the second connecting plate 1014 abut against each other, and the first connecting plate 1013 and the second connecting plate 1014 are fixed by fasteners 1015 such as bolts and screws. In another specific embodiment, the fixing component 101 also includes a hinge or other connecting rotating component disposed on the side of the upper housing 102 away from the first connecting plate 1013, and the upper housing 102 is rotatably disposed on the lower housing 103 through the connecting rotating component.

[0030] In order to increase the sealing performance of the housing 100, in a preferred embodiment of the present invention, the connection between the upper housing 102 and the lower housing 103 is filled with a sealant 106 such as silicone foam sealant or polyurethane sealant.

[0031] Example 2

[0032] In this embodiment, such as Figure 2 As shown, the electronic components on the circuit board 300 are connected to and communicate with external devices through wires 700. A wire outlet hole 600 is formed on the side of the housing 100 near the circuit board 300. The end of the wire 700 away from the circuit board 300 extends out of the housing 100 through the wire outlet hole 600.

[0033] To prevent the wire 700 from falling out of the housing 100, in a preferred embodiment of the present invention, a slot 800 is formed at the position of the wire outlet hole 600 on the housing 100 in a direction away from the circuit board 300. A limiting member 701, such as a limiting plate and a limiting ring, is provided in the slot 800, and the limiting member 701 is sleeved on the outside of the wire 700. The limiting member 701 is used to prevent the wire 700 from falling out of the wire outlet hole 600.

[0034] To prevent the wire 700 from swaying and breaking during long-term swaying, in a preferred embodiment of this utility model, a flexible connector and / or a soft protective layer such as rubber or silicone is provided on the wire 700 near the outlet hole 600.

[0035] Other solutions are consistent with Embodiment 1 and have the same technical effects as Embodiment 1, and will not be described in detail in this embodiment.

[0036] Example 3

[0037] In this embodiment, the electronic components on the circuit board 300 include a wireless communicator, and the electronic components on the circuit board 300 can communicate wirelessly with external devices.

[0038] Other solutions are consistent with Embodiment 1 and have the same technical effects as Embodiment 1, and will not be described in detail in this embodiment.

[0039] In this battery box, the potting hole 200 allows workers to pour potting compound 500 into the housing 100 through the potting hole 200, preventing external liquids from easily entering the battery box. Furthermore, by placing the circuit board 300 on the inner bottom wall of the housing 100, the circuit board 300 and the electronic components on it can be fully wrapped by the potting compound 500, improving the protection effect of the circuit board 300 and the electronic components.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery box for a swimming pool robot, used to provide power protection for the swimming pool robot, characterized in that, The enclosure includes a hollow rectangular housing (100), with a circuit board (300) mounted on the inner bottom wall of the housing (100) and electronic components mounted on the circuit board (300). Two battery holders (900) are located inside the housing (100), positioned on opposite sides of the housing (100). Multiple sets of batteries (400) supplying power to the circuit board (300) are positioned between the two battery holders (900). The housing (100) is filled with potting compound (500), which fills the gaps between the battery (400), electronic components, and circuit board (300). A potting hole (200) is formed on the top and / or side of the housing (100) near the top to facilitate the injection of potting compound (500). A vent hole (201) is formed on the top of the housing (100) to expel air from the housing (100) when potting compound (500) is injected into the housing (100).

2. The battery box for a swimming pool robot according to claim 1, characterized in that, The housing (100) includes a fixing component (101), an upper housing (102) with one end open, and a lower housing (103) with one end open. The upper housing (102) is detachably mounted on the lower housing (103) via the fixing component (101), so that the lower housing (103) and the upper housing (102) enclose a closed space, and the distance between the top of the upper housing (102) and the connection between the upper housing (102) and the lower housing (103) is greater than 5 mm.

3. A battery box for a swimming pool robot according to claim 2, characterized in that, The glue-filling hole (200) is provided on the upper housing (102), and the distance between the glue-filling hole (200) and the connection between the upper housing (102) and the lower housing (103) is greater than 5mm.

4. A battery box for a swimming pool robot according to claim 2, characterized in that, The upper shell (102) has a protrusion (104) at one end near the lower shell (103), and the lower shell (103) has a groove (105) at one end near the upper shell (102) for the protrusion (104) to be inserted.

5. A battery box for a swimming pool robot according to claim 2, characterized in that, The fixing component (101) includes a first connecting plate (1013) disposed on one side of the upper housing (102), and a second connecting plate (1014) disposed on the lower housing (103) at the position corresponding to the first connecting plate (1013). When the upper housing (102) is installed on the lower housing (103), the first connecting plate (1013) and the second connecting plate (1014) abut against each other, and the first connecting plate (1013) and the second connecting plate (1014) are fixed by a fastener (1015).

6. A battery box for a swimming pool robot according to any one of claims 2 to 4, characterized in that, The connection between the upper housing (102) and the lower housing (103) is filled with sealant (106).

7. A battery box for a swimming pool robot according to claim 1, characterized in that, The electronic components on the circuit board (300) are connected to and communicate with external devices through wires (700). A wire outlet hole (600) is formed on the side of the housing (100) near the circuit board (300). The end of the wire (700) away from the circuit board (300) extends out of the housing (100) through the wire outlet hole (600).

8. A battery box for a swimming pool robot according to claim 7, characterized in that, A slot (800) is formed at the position of the wire outlet hole (600) on the housing (100) in a direction away from the circuit board (300). A limiting member (701) is provided in the slot (800), and the limiting member (701) is sleeved outside the wire (700).

9. A battery box for a swimming pool robot according to claim 7 or 8, characterized in that, A flexible connector and / or a soft rubber protective layer are provided on the conductor (700) near the outlet hole (600).