Motor box of pool cleaning robot

Abstract

The utility model discloses a motor box of swimming pool cleaning robot, including upper casing and lower casing, upper casing and lower casing fastening connection and form sealed cabin, be equipped with coaxial arrangement a pair of drive motor in lower casing, the both sides of lower casing are equipped with the sealed shell for the output shaft of drive motor to pass through, and the output shaft of drive motor extends sealed shell, and upper casing is equipped with drain motor mounting seat, is equipped with drain motor in drain motor mounting seat, and the motor output shaft sleeve of drain motor is connected with the drainage impeller, and the top of drainage impeller is equipped with the drain port fairing. The opening is opened for the lead wire of drain motor to pass through in drain motor mounting seat, and the opening is coated with sealant, and drain motor mounting seat is fastened in the upper portion of upper casing through screw. The utility model passes through the cooperation of echelon stopper and shaft seal, satisfies the sealing requirement of swimming pool robot drive motor, can support robot long time work in 3m deep pool and simple assembly, low cost.

Description

Technical Field

[0001] This utility model relates to a motor housing for a swimming pool cleaning robot, belonging to the field of power tool technology. Background Technology

[0002] A pool cleaning robot is an automated device capable of cleaning the pool bottom underwater. It makes the routine removal of debris and grime from the pool bottom easy and convenient, significantly changing the traditional method of manual pool cleaning. To achieve autonomous underwater cleaning, a pool cleaning robot needs not only a path navigation system to identify its route but also reliable waterproofing. Existing pool cleaning robots typically enhance waterproofing by placing the drive motor inside the housing and sealing it with two layers of seals. However, while this installation method reduces the risk of leakage, it requires many more components, making assembly difficult and increasing manufacturing costs. Utility Model Content

[0003] The purpose of this invention is to overcome the problems existing in the prior art and provide a motor housing for a pool cleaning robot with a simple structure that can effectively prevent water leakage from the drive motor and avoid robot malfunctions.

[0004] To solve the above technical problems, the present invention provides a motor housing for a pool cleaning robot, comprising an upper housing and a lower housing, which are fastened together to form a sealed chamber. A pair of drive motors are coaxially arranged inside the lower housing. Sealing shells are provided on both sides of the lower housing for the output shafts of the drive motors to pass through, and the output shafts of the drive motors extend out of the sealing shells. A drain motor mounting base is provided on the upper housing, and a drain motor is provided inside the drain motor mounting base. A drain impeller is sleeved on the output shaft of the drain motor, and a drain outlet guide cover is provided above the drain impeller.

[0005] Furthermore, the drain motor mounting base has an opening through which the wires of the drain motor pass, and the opening is coated with sealant. The drain motor mounting base is fastened to the upper part of the upper housing by screws.

[0006] Furthermore, the wire terminals of the drainage motor are inserted into the sealed chamber, and the wire terminals of the drainage motor are provided with a waterproof protective coil, with a sealing ring embedded in the center of the outer periphery of the waterproof protective coil.

[0007] Furthermore, the lower housing extends downwards with two plastic insert battery PIN male connectors.

[0008] Furthermore, the sealing shell is integrally formed with the lower shell, and the outer periphery of the sealing shell is provided with screw holes. The screw passes through the screw holes to fasten the drive motor, and a sealing ring is provided between the screw and the screw hole.

[0009] Furthermore, a shaft seal is provided between the sealing shell and the output shaft of the drive motor.

[0010] Furthermore, the assembly stop between the sealing shell and the drive motor is stepped, and the drive motor is suspended inside the sealing cavity.

[0011] Compared with the prior art, the present invention has achieved the following beneficial effects: the present invention meets the sealing requirements of the drive motor of the pool robot by matching the stepped stop with the shaft seal, which can support the robot to work for a long time in a 3-meter deep pool and is simple to assemble and low in cost. Attached Figure Description

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 For the explosion of this utility model Figure 1 ; Figure 3 For the explosion of this utility model Figure 2 ; Figure 4 This is a schematic diagram of the assembly of the drive motor in this utility model; Figure 5 This is a cross-sectional view of the present invention.

[0014] In the diagram: 1. Upper housing, 2. Lower housing, 3. Sealed chamber, 4. Drive motor, 5. Sealed shell, 6. Plastic insert battery PIN male connector, 7. Drain motor mounting base, 8. Drain motor, 9. Drain impeller, 10. Drain outlet guide cover, 11. Wire, 12. Waterproof protective coil, 13. Sealing ring, 14. Shaft seal, 15. Stop, 16. Screw. Detailed Implementation

[0015] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0018] like Figures 1 to 5 As shown, this utility model aims to provide a motor housing for a pool cleaning robot, including an upper housing 1 and a lower housing 2. The upper housing 1 and the lower housing 2 are fastened together to form a sealed chamber 3. A pair of drive motors 4 are coaxially arranged inside the lower housing 2. Sealing shells 5 are provided on both sides of the lower housing 2 for the output shafts of the drive motors 4 to pass through. The output shafts of the drive motors 4 extend out of the sealing shells 5. Two plastic insert battery pin males 6 extend downward from the lower housing 2. The two plastic insert battery pin males 6 are connected to an external power supply device.

[0019] The upper housing 1 is provided with a drainage motor mounting base 7, and a drainage motor 8 is provided inside the drainage motor mounting base 7. The motor output shaft of the drainage motor 8 is sleeved with a drainage impeller 9, and a drainage outlet guide cover 10 is provided above the drainage impeller 9.

[0020] like Figure 2 As shown, the drain motor mounting base 7 has an opening through which the wires 11 of the drain motor 8 pass. The opening is coated with sealant. The drain motor mounting base 7 is fastened to the upper part of the upper housing 1 by screws 16.

[0021] The wire 11 terminal of the drainage motor 8 is inserted into the sealed chamber 3 and the wire 11 terminal of the drainage motor 8 is provided with a waterproof protective coil 12, and a sealing ring 13 is embedded in the middle of the outer periphery of the waterproof protective coil 12.

[0022] The sealing shell 5 is integrally formed with the lower shell 2. The outer periphery of the sealing shell 5 is provided with screw holes. The screw 16 passes through the screw holes to fasten the drive motor 4. A sealing ring 13 is provided between the screw 16 and the screw hole.

[0023] like Figure 5 As shown, a shaft seal 14 is provided between the sealing shell 5 and the output shaft of the drive motor 4. The assembly stop 15 between the sealing shell 5 and the drive motor 4 is stepped, and the drive motor 4 is suspended in the sealing cavity. By designing the stepped stop, even if a very small probability of water leakage occurs, it will not affect the motor.

[0024] This invention satisfies the sealing requirements of the drive motor of the pool robot by using a stepped stop and a shaft seal, enabling the robot to work for a long time in a 3-meter deep pool. It is also simple to assemble and low in cost.

[0025] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A motor housing for a pool cleaning robot, comprising an upper housing and a lower housing, wherein the upper housing and the lower housing are fastened together to form a sealed chamber, characterized in that: The lower housing contains a pair of coaxially arranged drive motors. The lower housing has sealing shells on both sides for the output shafts of the drive motors to pass through. The output shafts of the drive motors extend out of the sealing shells. The upper housing has a drainage motor mounting base. The drainage motor is installed in the drainage motor mounting base. The output shaft of the drainage motor is sleeved with a drainage impeller. A drainage outlet guide cover is provided above the drainage impeller.

2. The motor housing of the pool cleaning robot according to claim 1, characterized in that: The drain motor mounting base has an opening through which the wires of the drain motor pass, and the opening is coated with sealant. The drain motor mounting base is fastened to the upper part of the upper housing by screws.

3. The motor housing of the pool cleaning robot according to claim 2, characterized in that: The wire terminals of the drainage motor are inserted into the sealed chamber, and the wire terminals of the drainage motor are equipped with waterproof protective coils. A sealing ring is embedded in the middle of the outer periphery of the waterproof protective coils.

4. The motor housing of the pool cleaning robot according to claim 1, characterized in that: The lower housing extends downwards and has two plastic insert battery pin males.

5. The motor housing of the pool cleaning robot according to claim 1, characterized in that: The sealing shell is integrally formed with the lower shell. The outer periphery of the sealing shell is provided with screw holes. The screw passes through the screw holes to fasten the drive motor. A sealing ring is provided between the screw and the screw hole.

6. The motor housing of the pool cleaning robot according to claim 1, characterized in that: A shaft seal is provided between the sealing shell and the output shaft of the drive motor.

7. The motor housing of the pool cleaning robot according to claim 1, characterized in that: The assembly stop between the sealing shell and the drive motor is stepped, and the drive motor is suspended inside the sealing cavity.

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