A drive control device and sealing structure for a pool cleaner

Abstract

The present disclosure provides a control device for a pool cleaner, including a control box with a sealed chamber and a drive motor, a pump motor, a control component, and a power supply installed in the chamber. The control box has through-holes that receive a drive output shaft of the drive motor and a pump output shaft of the pump motor. Sealing elements seal the output shafts in the through-holes. The sealing elements include inner lips that engage the output shafts and outer lips that engage the through-holes.

Description

A DRIVE CONTROL DEVICE AND SEALING STRUCTURE FOR A POOL CLEANERRELATED APPLICATIONS:

[0001] The present application claims priority to Chinese Utility Model Application No. CN202421544538.4 and Chinese Utility Model Application No. CN202421544882.3, the entire disclosures of which are expressly incorporated by reference herein.

[0002] The present application is further related to PCT Application No. (unknown), filed June 16, 2025, titled ELECTRIC CLEANER AND FILTER BOX, docket IRC-0192-01 -WO; PCT Application No. (unknown), filed June 16, 2025, titled BRUSH DRIVE AND MOUNTING APPARATUS FOR A POOL CLEANER, docket IRC-0194-01- WO; PCT Application No. (unknown), filed June 16, 2025, titled A SWIMMING POOL CLEANER AND CONTROL METHOD, docket IRC-0195-01 -WO; Chinese Patent Application No. CN202410878353.5 (priority application for IRC-0192-01 -WO); Chinese Utility Model Application No. CN202421548554.0 (priority application for IRC-0192-01- WO); Chinese Patent Application No. CN202421545018.5 (priority application for IRC- 0192-01 -WO); Chinese Patent Application No. CN202410881089.0 (priority application for IRC-0194-01 -WO); Chinese Utility Model Application No. CN202421544614.1 (priority application for IRC-0194-01 -WO); Chinese Patent Application No.CN202421548568.2 (priority application for IRC-0194-01 -WO); Chinese Patent Application No. CN202411005754.6 (priority application for IRC-0195-01 -WO); and Chinese Utility Model Application No. CN202421772342.0 (priority application for IRC- 0195-01 -WO), the entire disclosures of which are expressly incorporated by reference herein.FIELD OF THE DISCLOSURE:

[0003] The present disclosure relates to pool cleaners, and more particularly to a drive control device and sealing structure for a pool cleaner.BACKGROUND:

[0004] Some existing pool cleaners use drive motors to drive the pool cleaner to move around to clean the accumulated dirt at the bottom of the pool, while using a water pump to draw water from the pool to filter the dirt in the water. The drive motor and the water pump are controlled and powered by a control component and a power supply component, respectively. Since the pool cleaner works in the pool, the waterproof design of the drive motor, the water pump motor, the control component, and the power supply component is desirable. However, in existing pool cleaners, the drive motor, the water pump motor, the control component, and the power supply component are scattered, making the waterproof design difficult. In view of the above problems, it is desirable to provide a drive control device for a pool cleaner to overcome the shortcomings of the existing technology.

[0005] Since the pool cleaner works in water, it is necessary to place the drive motor and the water pump motor in a closed motor installation chamber. The output shafts of the drive motor and the water pump motor protrude from the motor installation chamber, and the positions where the output shafts of the drive motor and the water pump motor protrude from the motor installation chamber are sealed with a sealing member. However, the existing sealing members have poor sealing reliability and cannot guarantee the sealing effect after long-term use. In view of the above problems, it is desirable to develop a sealing structure with the advantage of good sealing effect.SUMMARY:

[0006] In an exemplary embodiment of the present disclosure, a drive control device for a pool cleaner is provided. The drive control device may comprise a drive control box including a sealed electrical chamber, a first through-hole and a second through-hole, a first drive motor installed in the electrical chamber, a water pump motor installed in the electrical chamber, a power supply component installed in the electrical chamber; and a control component electrically connected to the first drive motor, the water pump motor, and the power supply component. The control component may be installed in the electrical chamber. The first through-hole may receive a drive output shaft of the first drive motor. The second through-hole may receive a water pumpoutput shaft of the water pump motor. The first through-hole may include a first sealing element that seals around the drive output shaft and the second through-hole may include a second sealing element that seals around the water pump output shaft.

[0007] In an example thereof, the drive control device may further comprise a second drive motor arranged opposite the first drive motor.

[0008] In another example thereof, the first drive motor and the water pump motor may be arranged perpendicularly to each other.

[0009] In a further example thereof, the first sealing element may have at least two first inner sealing lips and at least two first outer sealing lips separated on an inside surface of the first sealing element and an outside surface of the first sealing element, respectively. Each of the at least two first inner sealing lips may be in contact with an outer wall of the drive output shaft. Lubricating oil may be applied between the at least two first inner sealing lips. Each of the at least two first outer sealing lips of the first sealing element may be in contact with an inner wall of the first through-hole. In a variation thereof, the first through-hole may include a first stop flange. The first stop flange may be in contact with an end face of the first sealing element away from the first drive motor. The end face may include a first buffer ring groove.

[0010] In yet another example thereof, the second sealing element includes at least two second inner sealing lips and at least two second outer sealing lips separated on an inside surface of the second sealing element and an outside surface of the second sealing element, respectively. Each of the at least two second inner sealing lips being in contact with an outer wall of the water pump output shaft. Lubricating oil may be applied between the at least two second inner sealing lips. Each of the at least two second outer sealing lips may be in contact with an inner wall of the second through- hole. In a variation thereof, the second through-hole may include a second stop flange. The second stop flange may be in contact with an end face of the second sealing element away from the water pump motor. The end face may include a second buffer ring groove.

[0011] In still another example thereof, the drive control box may include a charging port and an elastic button cap that seals an operating opening of the drive control box. The control component may include a main control board and a controlswitch located in the operating opening and electrically connected to the main control board. The power supply component may include a power supply battery and a charging connector electrically connected to the main control board. The charging connector may include two charging pins that pass through the charging port and may be sealed with the charging port. In a variation thereof, the drive control box may have a box seat, a box cover and an end cover connected in sequence. A sealing pad may be sandwiched between the box seat and the box cover forming the electrical chamber. The button cap may be sandwiched between the box cover and the end cover. The box cover may have the operating opening and the charging port. The end cover may have a clearance opening corresponding to the button cap. The box cover may have a matching opening corresponding to the first drive motor. The matching opening may be closed by a matching cover. The matching cover may include the first through-hole. In a further variation thereof, the end cover may include a charging cap located outside the electrical chamber. The charging cap may seal the charging pins of the charging connector. In another variation thereof, the matching cover may be locked with the box cover. The matching cover may have a connecting head inserted into the matching opening. The connecting head may include the first through-hole and a sealing ring that may be sealed with an inner wall of the matching opening. In still another variation thereof, each of the charging connector may include an 0-ring that may be sealed with an inner wall of the charging port.

[0012] In yet still another example thereof, the drive control device may further comprise an impeller located outside the electrical chamber of the drive control box. The impeller may be connected to the water pump output shaft of the water pump motor. In a variation thereof, the drive control device may further comprise a streamlined cover located outside the electrical chamber of the drive control box. The streamlined cover may include a hollow cylinder covering the impeller and a streamlined blade set in the hollow cylinder. The hollow cylinder may be connected with the drive control box and form a flow gap with the drive control box. In another variation thereof, the drive control box may have an outlet pipe connected with the hollow cylinder of the streamlined cover.

[0013] In another exemplary embodiment of the present disclosure, a sealing structure is provided. The sealing structure may comprise a ring-shaped sealing body. The ring-shaped sealing body may include an inner wall having at least two inner sealing lips; an accommodation ring groove formed between the at least two inner sealing lips; an outer wall having at least two outer sealing lips; and a first end face including a buffering ring groove along a circumferential direction of the sealing body.

[0014] In an example thereof, the sealing body may include a second end face. The at least two inner sealing lips may be inclined towards the first end face and the second end face. In a variation thereof, the at least two inner sealing lips and the accommodation ring groove may form an axial passage with a middle and a pair of ends. A diameter of the axial passage may decrease from the middle to each of the pair of ends.

[0015] In another example thereof, the at least two inner sealing lips may have different hardnesses.

[0016] In a further example thereof, an inner sealing lip of the at least two inner sealing lips closest to the buffering ring groove may have a hardness that may be greater than another inner sealing lip of the at least two inner sealing lips.

[0017] In yet another exemplary embodiment of the present disclosure, a drive control device for a pool cleaner is provided. The drive control device may comprise a drive control box including a sealed electrical chamber with a first through-hole and a second through-hole extending from inside the electric chamber to outside the electric chamber; a drive motor with a drive output shaft that extends through the first through- hole; a pump motor with a pump output shaft that extends through the second through- hole; a first sealing element disposed in the first through-hole and sealing around the drive output shaft; and a second sealing element disposed in the second through-hole and sealing around the pump output shaft.

[0018] In an example thereof, the drive motor and the pump motor may be mounted within the electrical chamber in perpendicular relationship to each other.

[0019] In another example thereof, the first sealing element may include a pair of first inner sealing lips on an inner surface and a pair of first outer sealing lipsseparated on an outer surface. The pair of first inner sealing lips may contact the drive output shaft and the pair of first outer sealing lips may contact an inner wall of the first through-hole. In a variation thereof, an end face of the first sealing element includes a first buffer ring groove that contacts a first stop flange of the first through-hole. In another variation thereof, the pair of first inner sealing lips may form an axial passage with a middle and a pair of ends. A diameter of the axial passage may decrease from the middle to each of the pair of ends. In yet a further variation thereof, the pair of first inner sealing lips may have different hardnesses. In still a further variation thereof, an inner sealing lip of the pair of first inner sealing lips closest to the first buffer ring groove may have a hardness that may be greater than another inner sealing lip of the pair of first inner sealing lips.

[0020] In a further example thereof, the second sealing element includes a pair of second inner sealing lips on an inner surface and a pair of second outer sealing lips separated on an outer surface. The pair of second inner sealing lips may contact the pump output shaft and the pair of second outer sealing lips may contact an inner wall of the second through-hole. In a variation thereof, an end face of the second sealing element includes a second buffer ring groove that contacts a second stop flange of the second through-hole.

[0021] In still a further example thereof, the drive control device may further comprise an impeller located outside the electrical chamber of the drive control box. The impeller may be connected to the pump output shaft. In a variation thereof, the drive control device further comprises a hollow cylinder that encloses the impeller. The hollow cylinder may be coupled to the drive control box and may form a flow gap therewith.

[0022] An object of the present disclosure may be to provide a drive control device for a pool cleaner to overcome the shortcomings of the existing technology. To achieve the above object, the present disclosure provides: a drive control device for a pool cleaner that includes a drive control box, drive motors, a water pump motor, a control component, and a power supply component. The drive control box has a sealed electrical chamber, and the drive motors, water pump motor, control component, and power supply component are all installed in the electrical chamber. The controlcomponent is electrically connected to the drive motors, water pump motor, and power supply component, respectively. The drive control box has a first through-hole and a second through-hole corresponding to the drive output shaft of the drive motor and the water pump output shaft of the water pump motor, respectively, which communicate with the electrical chamber. The drive output shaft of the drive motor passes through the corresponding first through-hole, which is equipped with a first sealing element that seals around the drive output shaft of the drive motor. The water pump output shaft of the water pump motor passes through the corresponding second through-hole, which is equipped with a second sealing element that seals around the water pump output shaft of the water pump motor. The number of drive motors is two, and the two drive motors are arranged oppositely. The drive motors and the water pump motor are arranged perpendicularly to each other. The first sealing element has at least two first inner sealing lips and at least two first outer sealing lips separated on the inside and outside, respectively. Each of the first inner sealing lips of the first sealing element is in contact with the outer wall of the drive output shaft, and lubricating oil is applied between adjacent first inner sealing lips. Each of the first outer sealing lips of the first sealing element is in contact with the inner wall of the first through-hole. The first through-hole has a first stop flange, which is in contact with the end face of the first sealing element away from the drive motor. The end face of the first sealing element away from the drive motor is provided with a first buffer ring groove. The second sealing element has at least two second inner sealing lips and at least two second outer sealing lips separated on the inside and outside, respectively. Each of the second inner sealing lips of the second sealing element is in contact with the outer wall of the drive output shaft, and lubricating oil is applied between adjacent second inner sealing lips. Each of the second outer sealing lips of the second sealing element is in contact with the inner wall of the second through-hole. The second through-hole has a second stop flange, which is in contact with the end face of the second sealing element away from the water pump motor. The end face of the second sealing element away from the water pump motor is provided with a second buffer ring groove.

[0023] The drive control box has an operating opening, which is equipped with an elastic button cap. The button cap seals the operating opening to ensure the sealing ofthe electrical chamber. The control component has a main control board and a control switch electrically connected to the main control board. The control switch is located in the operating opening and is used to control the operation of the main control board. The power supply component includes a power supply battery and a charging connector electrically connected to the main control board. The charging connector is used to connect to an external power source to charge the power supply battery. The charging connector has two adjacent charging pins. The drive control box has a charging port corresponding to the charging pins. The charging pins pass through the charging port and are sealed with the charging port. The charging pins are equipped with 0-rings that are sealed with the inner wall of the charging port.

[0024] The drive control box has a box seat, a box cover, and an end cover connected in sequence. The box seat and the box cover are sandwiched with a sealing pad and form the said electrical chamber. The button cap is sandwiched between the box cover and the end cover. The box cover has the operating opening and the charging port. The end cover has a clearance opening corresponding to the button cap. The box cover has a matching opening corresponding to the drive motor, which is closed by a matching cover. The matching cover has the first through-hole. The end cover is equipped with a charging cap located outside the electrical chamber, which seals the charging pins of the charging connector to prevent contact with water. The matching cover is locked with the box cover. The matching cover has a connecting head inserted into the matching opening. The connecting head has the first through- hole and is equipped with a sealing ring that is sealed with the inner wall of the matching opening to ensure the sealing of the electrical chamber. The charging pins are equipped with O-rings that are sealed with the inner wall of the charging port. The drive control device for a pool cleaner also includes an impeller located outside the electrical chamber of the drive control box. The impeller is connected to the water pump output shaft of the water pump motor.

[0025] The drive control device for a pool cleaner also includes a streamlined cover located outside the electrical chamber of the drive control box. The streamlined cover includes a hollow cylinder covering the impeller and a streamlined blade set in the hollow cylinder. The hollow cylinder is connected with the drive control box and a flowgap is formed between the hollow cylinder and the drive control box. The drive control box has an outlet pipe connected with the hollow cylinder of the streamlined cover.

[0026] By adopting the above solution, the present disclosure installs the drive motors, water pump motor, control component, and power supply component all in the electrical chamber of the drive control box. As the waterproofing of the electrical chamber of the drive control box is designed to keep it sealed, it can effectively prevent the drive motors, water pump motor, main control board, and power supply battery from being damaged by water, which helps to simplify the waterproof design.

[0027] Another object of the present disclosure is to provide a sealing structure with the advantage of good sealing effect. To achieve the above object, the present disclosure provides a sealing structure that includes a ring-shaped sealing body. The inner wall of the sealing body is provided with at least two inner sealing lips, and an accommodation ring groove is formed between adjacent inner sealing lips. The outer wall of the sealing body is provided with at least two outer sealing lips. One end face of the sealing body is provided with a buffering ring groove along the circumferential direction of the sealing body. The inner wall of the sealing body is provided with two inner sealing lips. The two inner sealing lips are inclined and respectively inclined towards the two end faces of the sealing body. The two inner sealing lips of the sealing body and the accommodation ring groove form an axial passage with a diameter that gradually decreases from the middle to the ends. The two inner sealing lips of the sealing body may have different hardness. The inner sealing lip of the sealing body that is close to the buffering ring groove may have a greater hardness than the other inner sealing lip.

[0028] After adopting the above scheme, in use, each inner sealing lip of the sealing body contacts the motor output shaft to form at least two inner seals, and each outer sealing lip of the sealing body contacts the inner wall of the motor output hole provided on the side wall of the motor installation chamber to form at least two outer seals. In this way, the sealing body can effectively seal with the motor output shaft and the motor output hole to ensure the sealing effect. In addition, the buffering ring groove provides space to absorb and reduce the interference of the deformation of the outer sealing lip on the inner sealing lip, which helps to ensure the roundness of the innersealing lip and ensure the sealing stability of the inner seal. The accommodation ring groove can be used to accommodate lubricating oil to make the motor output shaft rotate smoothly. In addition, the buffering ring groove provides space to absorb and reduce the interference generated by the deformation of the inner and outer sealing lips, ensuring the sealing stability of the inner and outer seals.BRIEF DESCRIPTION OF THE DRAWINGS:

[0029] The above mentioned and other features of the present disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

[0030] FIG. 1 is a drive control box according to one embodiment of the present disclosure;

[0031] FIG. 2 is a structural exploded view of the drive control box of FIG. 1 ;

[0032] FIG. 3 is another structural exploded view of the drive control box of FIG.1 ;

[0033] FIG. 4 is a sectional view of the drive control box of FIG. 1 ;

[0034] FIG. 5 is an enlarged view of area a in FIG. 4;

[0035] FIG. 6 is an enlarged view of area b in FIG. 4;

[0036] FIG. 7 is a sectional view of the drive control box of FIG. 1 ;

[0037] FIG. 8 is a perspective view of a sealing element according to one embodiment of the present disclosure;

[0038] FIG. 9 is another perspective view of the sealing element of FIG. 8;

[0039] FIG. 10 is a sectional view of the sealing element of FIG. 8; and

[0040] FIG. 11 is an enlarged view similar to FIG. 5.DESCRIPTION OF EMBODIMENTS OF THE DISCLOSURE:

[0041] As shown in FIGS. 1 to 7, the present disclosure provides a drive control device for a pool cleaner, which includes a drive control box 1 , drive motors 2, a water pump motor 3, a control component 4, and a power supply component 5. The drive control box 1 has a sealed electrical chamber 10 (FIG. 4), and the drive motors 2, waterpump motor 3, control component 4, and power supply component 5 are all installed in the electrical chamber 10. The control component 4 is electrically connected to the drive motors 2, water pump motor 3, and power supply component 5, respectively. As shown in FIGS. 2 and 3, the drive control box 1 has a first through-hole 11 and a second through-hole 12 corresponding to the drive output shaft 21 of the drive motor 2 and the water pump output shaft 31 of the water pump motor 3, respectively, which communicate with the electrical chamber 10. The drive output shaft 21 of the drive motor 2 passes through the corresponding first through-hole 11 , which is equipped with a first sealing element 13 that seals around the drive output shaft 21 of the drive motor 2 to ensure the sealing of the electrical chamber 10. The water pump output shaft 31 of the water pump motor 3 passes through the corresponding second through-hole 12, which is equipped with a second sealing element 14 that seals around the water pump output shaft 31 of the water pump motor 3 to ensure the sealing of the electrical chamber 10.

[0042] As shown, the drive motors 2, water pump motor 3, control component 4, and power supply component 5 are all installed in the electrical chamber 10 of the drive control box 1 . As the waterproofing of the electrical chamber 10 of the drive control box 1 is designed to keep it sealed, it can effectively prevent the drive motors 2, water pump motor 3, main control board 41 , and power supply battery 51 from being damaged by water, which helps to simplify the waterproof design of the present disclosure.

[0043] In an embodiment of the present disclosure, the number of drive motors 2 is two, and the two drive motors 2 are arranged oppositely. The drive motors 2 and the water pump motor 3 are arranged perpendicularly to each other.

[0044] In an embodiment of the present disclosure and as best shown in FIG. 5, the first sealing element 13 has at least two first inner sealing lips 131 and at least two first outer sealing lips 132 separated on the inside and outside, respectively. Each of the first inner sealing lips 131 of the first sealing element 13 is in contact with the outer wall of the drive output shaft 21 of the drive motor 2 to form at least two inner seals. Lubricating oil is applied between adjacent first inner sealing lips 131 to ensure the smooth rotation of the drive output shaft 21 of the drive motor 2. Each of the first outersealing lips 132 of the first sealing element 13 is in contact with the inner wall of the first through-hole 11 to form at least two outer seals.

[0045] Referring now to FIG. 6, the second sealing element 14 similarly has at least two second inner sealing lips 141 and at least two second outer sealing lips 142 separated on the inside and outside respectively. Each of the second inner sealing lips 141 of the second sealing element 14 is in contact with the outer wall of the water pump output shaft 31 of the water pump motor 3 to form at least two inner seals. Lubricating oil is applied between adjacent second inner sealing lips 141 to ensure the smooth rotation of the water pump output shaft 31 of the water pump motor 3. Each of the second outer sealing lips 142 of the second sealing element 14 is in contact with the inner wall of the second through-hole 12 to form at least two outer seals.

[0046] In an embodiment of the present disclosure, the first through-hole 11 has a first stop flange 111 , which is in contact with the end face of the first sealing element 13 away from the drive motor 2. The end face of the first sealing element 13 away from the drive motor 2 is provided with a first buffer ring groove 133, which provides space to reduce the interference caused by the deformation of the first inner sealing lips 131 and the first outer sealing lips 132. Similarly, the second through-hole 12 has a second stop flange 121 , which is in contact with the end face of the second sealing element 14 away from the water pump motor 3. The end face of the second sealing element 14 away from the water pump motor 3 is provided with a second buffer ring groove 143, which provides space to reduce the mutual interference caused by the deformation of the second inner sealing lips 141 and the second outer sealing lips 142. Thus, it helps to ensure the roundness of the second inner sealing lip 141 , thereby ensuring the sealing stability of the inner seal.

[0047] In an embodiment of the present disclosure, the drive control box 1 has an operating opening 16 (FIGS. 2 and 3), which is equipped with an elastic button cap 17. The button cap 17 seals the operating opening 16 to ensure the sealing of the electrical chamber 10. The control component 4 has a main control board 41 and a control switch 42 electrically connected to the main control board 41. The control switch 42 is located in the operating opening 16 and is used to control the operation of the main control board 41 . The power supply component 5 includes a power supply battery 51 and acharging connector 52 electrically connected to the main control board 41 . The charging connector 52 is used to connect to an external power source to charge the power supply battery 51 . The charging connector 52 has two adjacent charging pins 521. The drive control box 1 has a charging port 18 corresponding to the charging pins 521. The charging pins 521 pass through the charging port 18 and are sealed with the charging port 18. The charging pins 521 are equipped with 0-rings 522 that are sealed with the inner wall of the charging port 18.

[0048] In an embodiment of the present disclosure, the drive control box 1 has a box seat 101 , a box cover 102, and an end cover 103 connected in sequence. The box seat 101 and the box cover 102 are sandwiched with a sealing pad 104 and form the said electrical chamber 10. The button cap 17 is sandwiched between the box cover 102 and the end cover 103. The box cover 102 has the operating opening 16 and the said charging port 18. The end cover 103 has a clearance opening 1031 corresponding to the button cap 17. The box cover 102 has a matching opening 1021 corresponding to the drive motor 2, which is closed by a matching cover 105. The matching cover 105 has the said first through-hole 11 . The box seat 101 , box cover 102, and end cover 103 can be locked together with screws. The matching cover 105 can also be locked with the box cover 102 with screws. As best shown in FIGS. 3 and 4, the matching cover 105 has a connecting head 1051 inserted into the matching opening 1021. The connecting head 1051 has the said first through-hole 11 and is equipped with a sealing ring 1052 that is sealed with the inner wall of the matching opening 1021 to ensure the sealing of the electrical chamber 10.

[0049] In an embodiment of the present disclosure, the end cover 103 is equipped with a charging cap 6 located outside the electrical chamber 10, which seals the charging pins 521 of the charging connector 52 to prevent contact with water.

[0050] In an embodiment of the present disclosure, the drive control device for a pool cleaner also includes an impeller 7 and a streamlined cover 8 located outside the electrical chamber 10 of the drive control box 1 . The impeller 7 is connected to the water pump output shaft 31 of the water pump motor 3. The streamlined cover 8 includes a hollow cylinder 81 covering the impeller 7 and a streamlined blade 82 set in the hollow cylinder 81 . The hollow cylinder 81 is connected with the drive control box 1and a flow gap is formed between the hollow cylinder 81 and the drive control box 1 . When the water pump motor 3 drives the impeller 7 to rotate, the impeller 7 can drive the water to flow through the streamlined cover 8. The streamlined cover 8 can streamline the water flow to increase the head of the water output. The end cover 103 of the drive control box 1 has an outlet pipe 15 connected with the hollow cylinder 81 of the streamlined cover 8 to fix the streamlined cover 8. The outlet pipe 15 is used to output the water flow.

[0051] The above embodiments and drawings are not intended to limit the product forms and styles of the present disclosure. Any appropriate modifications or refinements made by those of ordinary skill in the art are considered to be within the scope of the patent of the present disclosure.

[0052] Referring now to FIGS. 8 to 11 , the first sealing element 13 (labled A13) is shown. It should be understood that in certain embodiments the second sealing element 14 is identical to the first sealing element 13. As shown, the first sealing element A13 includes a ring-shaped sealing body A1 . The inner wall of the sealing body A1 is provided with at least two inner sealing lips A11 , and an accommodation ring groove A110 is formed between adjacent inner sealing lips A11 . The outer wall of the sealing body A1 is provided with at least two outer sealing lips A12. One end face of the sealing body A1 is provided with a buffering ring groove A13 along the circumferential direction of the sealing body A1.

[0053] As shown in FIG. 11 , in use, each inner sealing lip A11 of the sealing body A1 contacts the motor output shaft 21 to form at least two inner seals, and each outer sealing lip A12 of the sealing body A1 contacts the inner wall of the first through-hole or motor output hole 11 provided on the side wall of the motor installation chamber A3 to form at least two outer seals. In this way, the sealing body A1 can effectively seal with the motor output shaft 21 and the motor output hole 11 to ensure the sealing effect. In addition, the buffering ring groove A13 provides space to absorb and reduce the interference of the deformation of the outer sealing lip A12 on the inner sealing lip A11 , which helps to ensure the roundness of the inner sealing lip A11 and ensure the sealing stability of the inner seal. The accommodation ring groove A110 can be used to accommodate lubricating oil to make the motor output shaft 21 rotate smoothly.

[0054] In an embodiment of the present disclosure, the inner wall of the sealing body A1 is provided with two inner sealing lips A11 . The two inner sealing lips A11 are inclined and respectively inclined towards the two end faces of the sealing body A1 , so that there is enough deformation space between the two inner sealing lips A11 and the inner wall of the sealing body A1 for the inner sealing lips A11 to deform easily. Specifically, as shown in FIG. 10, the inclination of the two inner sealing lips A11 of the sealing body 1 forms an axial passage A10 with a diameter that gradually decreases from the middle to the ends between the two inner sealing lips A11 and the accommodation ring groove A110. The axial passage A10 is used to seal and fit around the motor output shaft 21 . This arrangement ensures that the two inner sealing lips A11 have good pressure-bearing effect on the pressure inside and outside the motor installation chamber A3. At the same time, under the pressure inside and outside the motor installation chamber A3, the two inner sealing lips A11 can fit more closely to the motor output shaft 21 to ensure stable sealing of the motor output shaft 21 by the two inner sealing lips A11 .

[0055] In an embodiment of the present disclosure, the two inner sealing lips A11 of the sealing body A1 have different hardness to adapt to different pressures inside and outside the motor installation chamber A3. Specifically, the inner sealing lip A11 that is close to the buffering ring groove A13 is used to withstand the water pressure outside the motor installation chamber A3, and the inner sealing lip A11 that is far from the buffering ring groove 13 is used to withstand the air pressure outside the motor installation chamber A3. Since the water pressure is greater than the air pressure, the hardness of the inner sealing lip A11 that is close to the buffering ring groove A13 is greater than that of the other inner sealing lip A11 to ensure the sealing effect. The end face of the sealing body A1 provided with the buffering ring groove 13 is used to contact the stop A311 of the motor output hole A31 to prevent the sealing body A1 from falling off.

[0056] The following Examples provide non-limiting embodiments of the present disclosure.

[0057] Example 1 . A drive control device for a pool cleaner is provided. The drive control device comprising: a drive control box including a sealed electricalchamber, a first through-hole and a second through-hole; a first drive motor installed in the electrical chamber; a water pump motor installed in the electrical chamber; a power supply component installed in the electrical chamber; and a control component electrically connected to the first drive motor, the water pump motor, and the power supply component. The control component installed in the electrical chamber. The first through-hole receives a drive output shaft of the first drive motor. The second through- hole receives a water pump output shaft of the water pump motor. The first through- hole includes a first sealing element that seals around the drive output shaft and the second through-hole includes a second sealing element that seals around the water pump output shaft.

[0058] Example 2. The drive control device of Example 1 , further comprising a second drive motor arranged opposite the first drive motor.

[0059] Example 3. The drive control device of Example 1 or 2, wherein the first drive motor and the water pump motor are arranged perpendicularly to each other.

[0060] Example 4. The drive control device of Example 1 , wherein the first sealing element has at least two first inner sealing lips and at least two first outer sealing lips separated on an inside surface of the first sealing element and an outside surface of the first sealing element, respectively. Each of the at least two first inner sealing lips being in contact with an outer wall of the drive output shaft. Lubricating oil is applied between the at least two first inner sealing lips. Each of the at least two first outer sealing lips of the first sealing element is in contact with an inner wall of the first through-hole.

[0061] Example 5. The drive control device of Example 4, wherein the first through-hole includes a first stop flange. The first stop flange being in contact with an end face of the first sealing element away from the first drive motor. The end face including a first buffer ring groove.

[0062] Example 6. The drive control device of Example 1 , wherein the second sealing element includes at least two second inner sealing lips and at least two second outer sealing lips separated on an inside surface of the second sealing element and an outside surface of the second sealing element, respectively. Each of the at least two second inner sealing lips being in contact with an outer wall of the water pump outputshaft. Lubricating oil is applied between the at least two second inner sealing lips.Each of the at least two second outer sealing lips is in contact with an inner wall of the second through-hole.

[0063] Example 7. The drive control device of Example 6, wherein the second through-hole includes a second stop flange. The second stop flange being in contact with an end face of the second sealing element away from the water pump motor. The end face including a second buffer ring groove.

[0064] Example 8. The drive control device of Example 1 , wherein the drive control box includes a charging port and an elastic button cap that seals an operating opening of the drive control box. The control component includes a main control board and a control switch located in the operating opening and electrically connected to the main control board. The power supply component includes a power supply battery and a charging connector electrically connected to the main control board. The charging connector including two charging pins that pass through the charging port and are sealed with the charging port.

[0065] Example 9. The drive control device of Example 8, wherein the drive control box has a box seat, a box cover and an end cover connected in sequence. A sealing pad is sandwiched between the box seat and the box cover forming the electrical chamber. The button cap is sandwiched between the box cover and the end cover. The box cover has the operating opening and the charging port. The end cover has a clearance opening corresponding to the button cap. The box cover has a matching opening corresponding to the first drive motor. The matching opening being closed by a matching cover. The matching cover including the first through-hole.

[0066] Example 10. The drive control device of Example 9, wherein the end cover includes a charging cap located outside the electrical chamber. The charging cap sealing the charging pins of the charging connector.

[0067] Example 11 . The drive control device of Example 9, wherein the matching cover is locked with the box cover. The matching cover has a connecting head inserted into the matching opening. The connecting head including the first through-hole and a sealing ring that is sealed with an inner wall of the matching opening.

[0068] Example 12. The drive control device of Example 8, wherein each of the charging connector includes an 0-ring that is sealed with an inner wall of the charging port.

[0069] Example 13. The drive control device of Example 1 , further comprising an impeller located outside the electrical chamber of the drive control box. The impeller being connected to the water pump output shaft of the water pump motor.

[0070] Example 14. The drive control device of Example 13, further comprising a streamlined cover located outside the electrical chamber of the drive control box. The streamlined cover including a hollow cylinder covering the impeller and a streamlined blade set in the hollow cylinder. The hollow cylinder being connected with the drive control box and forming a flow gap with the drive control box.

[0071] Example 15. The drive control device of Example 14, wherein the drive control box has an outlet pipe connected with the hollow cylinder of the streamlined cover.

[0072] Example 16. A sealing structure is provided. The sealing structure comprising a ring-shaped sealing body. The ring-shaped sealing body including an inner wall having at least two inner sealing lips; an accommodation ring groove formed between the at least two inner sealing lips; an outer wall having at least two outer sealing lips; and a first end face including a buffering ring groove along a circumferential direction of the sealing body.

[0073] Example 17. The sealing structure of Example 16, wherein the sealing body includes a second end face and the at least two inner sealing lips are inclined towards the first end face and the second end face.

[0074] Example 18. The sealing structure of Example 17, wherein the at least two inner sealing lips and the accommodation ring groove form an axial passage with a middle and a pair of ends. A diameter of the axial passage decreases from the middle to each of the pair of ends.

[0075] Example 19. The sealing structure of Example 17, wherein the at least two inner sealing lips have different hardnesses.

[0076] Example 20. The sealing structure of Example 17, wherein an inner sealing lip of the at least two inner sealing lips closest to the buffering ring groovehas a hardness that is greater than another inner sealing lip of the at least two inner sealing lips.

[0077] Example 21 . A drive control device for a pool cleaner is provided. The drive control device comprising a drive control box including a sealed electrical chamber with a first through-hole and a second through-hole extending from inside the electric chamber to outside the electric chamber; a drive motor with a drive output shaft that extends through the first through-hole; a pump motor with a pump output shaft that extends through the second through-hole; a first sealing element disposed in the first through-hole and sealing around the drive output shaft; and a second sealing element disposed in the second through-hole and sealing around the pump output shaft.

[0078] Example 22. The drive control device of Example 21 , wherein the drive motor and the pump motor are mounted within the electrical chamber in perpendicular relationship to each other.

[0079] Example 23. The drive control device of Example 21 , wherein the first sealing element includes a pair of first inner sealing lips on an inner surface and a pair of first outer sealing lips separated on an outer surface. The pair of first inner sealing lips contacting the drive output shaft and the pair of first outer sealing lips contacting an inner wall of the first through-hole.

[0080] Example 24. The drive control device of Example 23, wherein an end face of the first sealing element includes a first buffer ring groove that contacts a first stop flange of the first through-hole.

[0081] Example 25. The drive control device of Example 21 , wherein the second sealing element includes a pair of second inner sealing lips on an inner surface and a pair of second outer sealing lips separated on an outer surface. The pair of second inner sealing lips contacting the pump output shaft and the pair of second outer sealing lips contacting an inner wall of the second through-hole.

[0082] Example 26. The drive control device of Example 25, wherein an end face of the second sealing element includes a second buffer ring groove that contacts a second stop flange of the second through-hole.

[0083] Example 27. The drive control device of Example 21 , further comprising an impeller located outside the electrical chamber of the drive control box. The impeller being connected to the pump output shaft.

[0084] Example 28. The drive control device of Example 27, further comprising a hollow cylinder that encloses the impeller. The hollow cylinder being coupled to the drive control box and forming a flow gap therewith.

[0085] Example 29. The sealing structure of Example 23, wherein the pair of first inner sealing lips form an axial passage with a middle and a pair of ends. A diameter of the axial passage decreases from the middle to each of the pair of ends.

[0086] Example 30. The sealing structure of Example 23, wherein the pair of first inner sealing lips have different hardnesses.

[0087] Example 31 . The sealing structure of Example 23, wherein an inner sealing lip of the pair of first inner sealing lips closest to the first buffer ring groove has a hardness that is greater than another inner sealing lip of the pair of first inner sealing lips.

[0088] The above embodiments and drawings are not intended to limit the product form and style of the present disclosure. Any appropriate modifications or refinements made by those skilled in the art are considered to be within the scope of the patent of the present disclosure.

Claims

CLAIMSWhat is claimed is:1 . A drive control device for a pool cleaner, comprising: a drive control box including a sealed electrical chamber, a first through-hole and a second through-hole; a first drive motor installed in the electrical chamber; a water pump motor installed in the electrical chamber; a power supply component installed in the electrical chamber; and a control component electrically connected to the first drive motor, the water pump motor and the power supply component and installed in the electrical chamber; wherein the first through-hole receives a drive output shaft of the first drive motor and the second through-hole receives a water pump output shaft of the water pump motor; and wherein the first through-hole includes a first sealing element that seals around the drive output shaft and the second through-hole includes a second sealing element that seals around the water pump output shaft.

2. The drive control device of claim 1 , further comprising a second drive motor arranged opposite the first drive motor.

3. The drive control device of claim 1 or 2, wherein the first drive motor and the water pump motor are arranged perpendicularly to each other.

4. The drive control device of claim 1 , wherein the first sealing element has at least two first inner sealing lips and at least two first outer sealing lips separated on an inside surface of the first sealing element and an outside surface of the first sealing element, respectively, each of the at least two first inner sealing lips being in contact with an outer wall of the drive output shaft and lubricating oil is applied between the at least two first inner sealing lips, and each of the at least two first outer sealing lips of the first sealing element is in contact with an inner wall of the first through-hole.

5. The drive control device of claim 4, wherein the first through-hole includes a first stop flange, the first stop flange being in contact with an end face of the first sealing element away from the first drive motor, the end face including a first buffer ring groove.

6. The drive control device of claim 1 , wherein the second sealing element includes at least two second inner sealing lips and at least two second outer sealing lips separated on an inside surface of the second sealing element and an outside surface of the second sealing element, respectively, each of the at least two second inner sealing lips being in contact with an outer wall of the water pump output shaft and lubricating oil is applied between the at least two second inner sealing lips, and each of the at least two second outer sealing lips is in contact with an inner wall of the second through-hole.

7. The drive control device of claim 6, wherein the second through-hole includes a second stop flange, the second stop flange being in contact with an end face of the second sealing element away from the water pump motor, the end face including a second buffer ring groove.

8. The drive control device of claim 1 , wherein: the drive control box includes a charging port and an elastic button cap that seals an operating opening of the drive control box; the control component includes a main control board and a control switch located in the operating opening and electrically connected to the main control board; and the power supply component includes a power supply battery and a charging connector electrically connected to the main control board, the charging connector including two charging pins that pass through the charging port and are sealed with the charging port.

9. The drive control device of claim 8, wherein: the drive control box has a box seat, a box cover and an end cover connected in sequence, and a sealing pad sandwiched between the box seat and the box coverforming the electrical chamber; the button cap is sandwiched between the box cover and the end cover, the box cover has the operating opening and the charging port, and the end cover has a clearance opening corresponding to the button cap; the box cover has a matching opening corresponding to the first drive motor, the matching opening being closed by a matching cover and the matching cover including the first through-hole.

10. The drive control device of claim 9, wherein the end cover includes a charging cap located outside the electrical chamber, the charging cap sealing the charging pins of the charging connector.11 . The drive control device of claim 9, wherein the matching cover is locked with the box cover, and the matching cover has a connecting head inserted into the matching opening, the connecting head including the first through-hole and a sealing ring that is sealed with an inner wall of the matching opening.

12. The drive control device of claim 8, wherein each of the charging connector includes an 0-ring that is sealed with an inner wall of the charging port.

13. The drive control device of claim 1 , further comprising an impeller located outside the electrical chamber of the drive control box, the impeller being connected to the water pump output shaft of the water pump motor.

14. The drive control device of claim 13, further comprising a streamlined cover located outside the electrical chamber of the drive control box, the streamlined cover including a hollow cylinder covering the impeller and a streamlined blade set in the hollow cylinder, the hollow cylinder being connected with the drive control box and forming a flow gap with the drive control box.

15. The drive control device of claim 14, wherein the drive control box has an outletpipe connected with the hollow cylinder of the streamlined cover.

16. A sealing structure, comprising: a ring-shaped sealing body including: an inner wall having at least two inner sealing lips; an accommodation ring groove formed between the at least two inner sealing lips; an outer wall having at least two outer sealing lips; and a first end face including a buffering ring groove along a circumferential direction of the sealing body.

17. The sealing structure of claim 16, wherein the sealing body includes a second end face and the at least two inner sealing lips are inclined towards the first end face and the second end face.

18. The sealing structure of claim 17, wherein the at least two inner sealing lips and the accommodation ring groove form an axial passage with a middle and a pair of ends, a diameter of the axial passage decreases from the middle to each of the pair of ends.

19. The sealing structure of claim 17, wherein the at least two inner sealing lips have different hardnesses.

20. The sealing structure of claim 17, wherein an inner sealing lip of the at least two inner sealing lips closest to the buffering ring groove has a hardness that is greater than another inner sealing lip of the at least two inner sealing lips.21 . A drive control device for a pool cleaner, comprising: a drive control box including a sealed electrical chamber with a first through-hole and a second through-hole extending from inside the electric chamber to outside the electric chamber;a drive motor with a drive output shaft that extends through the first through-hole; a pump motor with a pump output shaft that extends through the second through- hole; a first sealing element disposed in the first through-hole and sealing around the drive output shaft; and a second sealing element disposed in the second through-hole and sealing around the pump output shaft.

22. The drive control device of claim 21 , wherein the drive motor and the pump motor are mounted within the electrical chamber in perpendicular relationship to each other.

23. The drive control device of claim 21 , wherein the first sealing element includes a pair of first inner sealing lips on an inner surface and a pair of first outer sealing lips separated on an outer surface, the pair of first inner sealing lips contacting the drive output shaft and the pair of first outer sealing lips contacting an inner wall of the first through-hole.

24. The drive control device of claim 23, wherein an end face of the first sealing element includes a first buffer ring groove that contacts a first stop flange of the first through-hole.

25. The drive control device of claim 21 , wherein the second sealing element includes a pair of second inner sealing lips on an inner surface and a pair of second outer sealing lips separated on an outer surface, the pair of second inner sealing lips contacting the pump output shaft and the pair of second outer sealing lips contacting an inner wall of the second through-hole.

26. The drive control device of claim 25, wherein an end face of the second sealing element includes a second buffer ring groove that contacts a second stop flange of the second through-hole.

27. The drive control device of claim 21 , further comprising an impeller located outside the electrical chamber of the drive control box, the impeller being connected to the pump output shaft.

28. The drive control device of claim 27, further comprising a hollow cylinder that encloses the impeller, the hollow cylinder being coupled to the drive control box and forming a flow gap therewith.

29. The sealing structure of claim 23, wherein the pair of first inner sealing lips form an axial passage with a middle and a pair of ends, a diameter of the axial passage decreases from the middle to each of the pair of ends.

30. The sealing structure of claim 23, wherein the pair of first inner sealing lips have different hardnesses.31 . The sealing structure of claim 23, wherein an inner sealing lip of the pair of first inner sealing lips closest to the first buffer ring groove has a hardness that is greater than another inner sealing lip of the pair of first inner sealing lips.

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