Power interface assembly, power module and swimming pool cleaning robot

Abstract

The utility model relates to a power interface assembly, a power module and a swimming pool cleaning robot. The power interface assembly comprises a main connector, a base, a sealing cover, a first sealing piece, a second sealing piece and at least two conductive terminals. The main connector is at least partially arranged in a surrounding mode in the circumferential direction, and an inner space is defined by the inner circumferential side of the main connector. The at least two conductive terminals are connected to the main joint. At least two conductive terminals are accommodated in the internal space. The base is connected to the main connector and arranged in a surrounding mode in the peripheral direction of the main connector. The sealing cover has a covering state and an uncovering state relative to the main connector. The sealing cover is provided with a closed end and an open end which are opposite. In the covering state, the sealing cover is connected with the main connector in a positioning mode, the main connector is contained in the sealing cover, and the first sealing piece is connected between the peripheral side of the main connector and the inner wall face of the sealing cover in an abutting mode in the circumferential direction. Water in the swimming pool is prevented from flowing to the vicinity of the conductive terminal from the gap between the base and the opening end of the sealing cover, and the conductive terminal is fully prevented from being corroded.

Description

Technical Field

[0001] This application relates to the field of power interface technology, and in particular to a power interface component, a power module, and a pool cleaning robot. Background Technology

[0002] To ensure the hygiene of a swimming pool, in addition to filtering and disinfecting the pool water, it is also necessary to clean the dirt adhering to the pool surface. Using a pool cleaning robot to clean the pool surface can effectively reduce the difficulty of pool cleaning.

[0003] To ensure continuous cleaning within the pool, pool cleaning robots are typically equipped with lithium batteries or other energy storage devices. Some robots also have a power interface; when the robot leaves the pool, the power interface electrically connects to the charging cable, and the charging current is input to the energy storage device through the power interface.

[0004] However, since pool water contains chlorine and salt, when the pool cleaning robot is in the pool, if the metal conductive terminals in the power interface come into contact with the pool water, the metal conductive terminals will be corroded or undergo an electrolytic reaction. The integrity of the surface of the metal conductive terminals may be damaged, or they may be covered by a substance with poor conductivity. This may cause the power interface to generate a lot of heat during the charging process of the pool cleaning robot, and the pool cleaning robot may be seriously damaged due to high temperature. Utility Model Content

[0005] Based on this, the present invention provides a power interface component, a power module, and a pool cleaning robot that can solve or at least alleviate the above-mentioned technical problems.

[0006] This utility model provides a power interface assembly, including:

[0007] A main connector is disposed at least partially around the periphery in the circumferential direction, and the inner circumferential side of the main connector defines an internal space;

[0008] At least two conductive terminals are connected to the main connector and housed within the internal space;

[0009] A base is connected to the main connector and is arranged around the outer periphery of the main connector;

[0010] The sealing cap has a closed state and an open state relative to the main connector; the sealing cap has a closed end and an open end; in the closed state, the sealing cap is positioned and connected to the main connector, the main connector is housed in the sealing cap, a first sealing element is abutted circumferentially between the outer peripheral side of the main connector and the inner wall surface of the sealing cap, and a second sealing element is abutted circumferentially between the open end and the base.

[0011] The power interface assembly of this application has conductive terminals electrically connected to an energy storage device. In the open state, since the main connector is exposed outside the sealing cover, it can electrically interface with an external connector, and the charging current is transmitted to the energy storage device through the external connector and the main connector. In the closed state, the sealing cover maintains a stable relative position with the main connector, and the open end of the sealing cover is positioned opposite the base, forming a closed space. The main connector is housed within the sealing cover, and at least two conductive terminals are protected by the sealing cover. The conductive terminals are located on the inner circumference of the main connector and are circumferentially abutted between the outer circumference of the main connector and the inner wall of the sealing cover by a first sealing element, thereby forming a sealing structure. When the pool cleaning robot is underwater, this prevents pool water from flowing from the gap between the outer circumference of the main connector and the inner wall of the sealing cover to the vicinity of the conductive terminals. When the cover is closed, the opening end of the sealing cover faces the base, and the second sealing element abuts against the opening end of the sealing cover and the base in the circumferential direction, thereby forming another sealing structure. This prevents pool water from flowing from the gap between the base and the opening end of the sealing cover to the vicinity of the conductive terminals, effectively avoiding corrosion or electrolytic reactions of the conductive terminals, and reducing the risk of the main connector overheating during the charging process, which could damage the pool cleaning robot.

[0012] In one embodiment, the main connector is provided with a partition portion that divides the internal space of the main connector parallel to the axial direction; two conductive terminals with opposite polarities are respectively disposed on both sides of the partition portion.

[0013] In one embodiment, the main connector is provided with two drain ports; the drain ports are connected between the inner peripheral side and the outer peripheral side of the main connector; one drain port is located on one side of the partition portion, and the other drain port is located on the other side of the partition portion.

[0014] In one embodiment, a positioning pin connected to the main connector is also included; the positioning pin is housed within the internal space; the positioning pin is spaced apart from the at least two conductive terminals.

[0015] In one embodiment, the outer peripheral side of the main connector and one of the inner wall surfaces of the sealing cover are provided with a positioning groove, and the other is connected with a positioning block; in the closed state, the positioning block abuts against the side wall surface of the positioning groove along a predetermined axial direction.

[0016] In one embodiment, the main connector has a first end and a second end opposite to each other; in the closed state, the first end faces the closed end of the sealing cap; the main connector is provided with a bevel formed between the inner peripheral side and the outer peripheral side of the main connector; the bevel is at least partially opposite to the first end of the conductive terminals; the bevel is inclined in a direction away from the first end along the direction from the center of the main connector to the outer peripheral side.

[0017] In one embodiment, the main connector is provided with a limiting groove; the limiting groove is arranged around the outer periphery of the main connector; the first sealing element is accommodated in the limiting groove.

[0018] This utility model provides a power module, including the power interface component of any of the above embodiments.

[0019] This utility model provides a swimming pool cleaning robot, including a power module and a body connected to the power module, as described in any of the above embodiments.

[0020] This utility model provides a swimming pool cleaning robot, including the power interface component of any of the above embodiments. Attached Figure Description

[0021] Figure 1 This is a perspective view of a power module according to an embodiment of this application.

[0022] Figure 2 for Figure 1 The diagram shows a three-dimensional representation of the power module.

[0023] Figure 3 for Figure 1 The diagram shown is an exploded view of the power module.

[0024] Figure 4a for Figure 3 A three-dimensional schematic diagram of the power interface component in the power module shown.

[0025] Figure 4b for Figure 3 A three-dimensional schematic diagram of the power interface component in the power module shown from another angle.

[0026] Figure 5a for Figure 3 A three-dimensional schematic diagram of the power interface component in the power module shown from another angle.

[0027] Figure 5b for Figure 3 The power interface component in the power module shown is illustrated from another angle in a three-dimensional perspective.

[0028] Figure 6 for Figure 3The power interface component in the power module shown is illustrated in a three-dimensional view from another angle.

[0029] Figure 7 for Figure 6 A three-dimensional schematic diagram of the main connector in the power interface assembly shown.

[0030] Figure 8a for Figure 3 A three-dimensional schematic diagram of the sealing cover in the power interface assembly shown.

[0031] Figure 8b for Figure 8a A three-dimensional schematic diagram of the sealing cover in the power interface assembly shown from another angle.

[0032] Figure 9 for Figure 8b The shown is a three-dimensional sectional view of the sealing cap.

[0033] Figure 10 for Figure 1 A perspective sectional view of the sealing cover and the second seal in the power module shown.

[0034] Reference numerals: 100, power module; 20, housing; 30, energy storage device; 40, power interface assembly; 50, main connector; 502, first end; 503, second end; 51, base; 52, mounting part; 521, outer end; 522, inclined surface; 523, limiting groove; 53, docking part; 531, drain port; 532, positioning groove; 533, side wall; 54, conductive terminal; 55, partition part; 56, positioning pin; 70, sealing cover; 701, closed end; 702, open end; 71, inner cavity; 73, positioning block; 74, hook part; 80, first seal; 81, second seal; 811, annular groove; 812, annular part; 82, connecting strip; F1, axial direction. Detailed Implementation

[0035] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.

[0039] This application provides a swimming pool cleaning robot for cleaning swimming pools. Understandably, the swimming pool cleaning robot is not limited to cleaning swimming pools; it can also be used to perform cleaning operations in other places besides swimming pools, such as fishponds or tap water filtration ponds.

[0040] Specifically, in combination Figure 1 and Figure 2 As shown, the pool cleaning robot includes a body and a power module 100 connected to the body. The power module 100 is used to provide electrical energy. Optionally, the power module 100 is detachably connected to the body.

[0041] Specifically, the pool cleaning robot also includes a filtration device installed inside its body. The body has an inlet and an outlet. The filtration device is positioned between the inlet and outlet, and as water flows through it, it is filtered, trapping dirt, small particles, or debris within the filter. For example, the filtration device is detachably connected to the body to facilitate cleaning of the filter screen inside, or to facilitate replacement of the filter screen or filter element.

[0042] Specifically, the pool cleaning robot also includes a flow guiding device located within its body. This device drives water to be drawn in through the inlet, filtered by the filter, and discharged from the outlet. Optionally, the flow guiding device includes a pump motor and a flow guiding pipe. The flow guiding pipe connects the inlet and the filter, or connects the filter and the outlet. The pump motor drives the water flow from the inlet to the outlet. Optionally, the pump motor and flow guiding pipe can assist the pool cleaning robot's movement or steering through fluid jetting.

[0043] Optionally, the flow guiding device also includes a one-way valve, which is located between the filter and the inlet. When the pump motor stops running, the one-way valve can prevent debris in the filter from flowing back into the pool from the inlet.

[0044] In some implementations, the pool cleaning robot also includes a movement mechanism attached to its body. This movement mechanism enables the entire pool cleaning robot to move within the pool.

[0045] Optionally, the moving mechanism includes a drive motor, a transmission mechanism, and rollers. The drive motor is connected to the machine body. The transmission mechanism is connected between the output shaft of the drive motor and the rollers, and the drive motor drives the rollers to rotate through the transmission mechanism. Optionally, the moving mechanism contacts the pool wall through the rollers. Optionally, the moving mechanism also includes a track, which is attached to the outer periphery of several rollers, and the moving mechanism contacts the pool wall through the track.

[0046] In some implementations, combined Figure 1 and Figure 3 As shown, the power module 100 includes a housing 20, an energy storage device 30 housed within the housing 20, and a power interface assembly 40 connected to the housing 20. Specifically, the power interface assembly 40 is electrically connected to the energy storage device 30. Optionally, the housing 20 is detachably connected to the device body. Exemplarily, the energy storage device 30 is a battery pack. Understandably, the power interface assembly 40 can electrically interface with an external connector, and charging current is transferred from the external connector and the power interface assembly 40 to the energy storage device 30. Exemplarily, the external connector may be installed at one end of a charging cable, and the external connector is electrically connected to a mains power source via the charging cable. Understandably, the housing 20 is used to define an enclosed space for housing the energy storage device 30.

[0047] Optionally, the power module 100 further includes a charge / discharge regulation circuit. The charge / discharge regulation circuit is electrically connected between the energy storage device 30 and the power interface assembly 40. Optionally, the charge / discharge regulation circuit is used to regulate the current or voltage during the charging process. Optionally, the charge / discharge regulation circuit is used to regulate the current or voltage during the discharging process. Optionally, the charge / discharge regulation circuit is used to provide protection control for the energy storage device 30 during the charging or discharging process. Understandably, the charge / discharge regulation circuit is housed within the housing 20.

[0048] In some embodiments, the pool cleaning robot also includes a control module electrically connected to the moving mechanism. The control module is used to control the movement speed or positioning of the robot body. Optionally, the control module is housed within the housing 20. Exemplarily, a power module 100 is used to provide electrical power to the moving mechanism and the control module.

[0049] Optionally, the power module 100 is connected to the outer periphery of the housing. Optionally, the power module 100 is connected to the top side of the housing. Understandably, the power interface assembly 40 is located on the side of the housing 20 facing away from the housing.

[0050] In some embodiments, the fuselage is connected to a power interface assembly 40. Understandably, an energy storage device 30 may be housed inside the fuselage.

[0051] Combination Figures 3 to 4b As shown, this application provides a power interface assembly 40 including a main connector 50, a base 51, a sealing cover 70, a first seal 80, a second seal 81, and at least two conductive terminals 54. The main connector 50 is at least partially disposed around the main connector 50 in the circumferential direction, and the inner circumferential side of the main connector 50 defines an internal space. At least two conductive terminals 54 are connected to the main connector 50. The internal space contains at least two conductive terminals 54. The base 51 is connected to the main connector 50 and is disposed around the main connector 50 in the outer circumferential direction. The sealing cover 70 has a closed state and an open state relative to the main connector 50. The sealing cover 70 has a closed end 701 and an open end 702. In the closed state, the sealing cover 70 is positioned and connected to the main connector 50, and the main connector 50 is housed within the sealing cover 70. In the closed state, the first sealing element 80 abuts circumferentially between the outer peripheral side of the main connector 50 and the inner wall surface of the sealing cover 70, and the second sealing element 81 abuts circumferentially between the open end 702 and the base 51.

[0052] The power interface assembly 40 of this application has conductive terminals 54 electrically connected to the energy storage device 30. In the open state, since the main connector 50 is exposed outside the sealing cover 70, it can electrically interface with an external connector, and the charging current is transmitted to the energy storage device 30 through the external connector and the main connector 50. In the closed state, the sealing cover 70 maintains a stable relative position with respect to the main connector 50, and the open end 702 of the sealing cover 70 is positioned opposite to the base 51, forming a closed space. The main connector 50 is housed within the sealing cover 70, and at least two conductive terminals 54 are protected by the sealing cover 70. The conductive terminals 54 are located on the inner circumference of the main connector 50 and are circumferentially abutted between the outer circumference of the main connector 50 and the inner wall of the sealing cover 70 by a first sealing member 80, thereby forming a sealing structure. When the pool cleaning robot is underwater, this prevents pool water from flowing from the gap between the outer circumference of the main connector 50 and the inner wall of the sealing cover 70 to the vicinity of the conductive terminals 54. In the closed state, since the opening end 702 of the sealing cover 70 faces the base 51, the second sealing member 81 abuts against the opening end 702 of the sealing cover 70 and the base 51 in the circumferential direction, thereby forming another sealing structure. This prevents pool water from flowing from the gap between the base 51 and the opening end 702 of the sealing cover 70 to the vicinity of the conductive terminal 54, effectively avoiding corrosion or electrolytic reaction of the conductive terminal 54, and reducing the risk of the main connector 50 overheating during the charging process, which could damage the pool cleaning robot.

[0053] Exemplarily, in the closed state, the first seal 80 is positioned axially F1 between the base 51 and the conductive terminal 54. Exemplarily, the main connector 50 includes two adjacent parts connected axially F1. For simplicity and ease of understanding, these two parts of the main connector 50 are referred to as the first part and the second part, respectively. The first part is positioned axially F1 between the base 51 and the conductive terminal 54, and the first seal 80 abuts circumferentially between the outer peripheral side of the first part and the inner wall surface of the sealing cover 70, thereby preventing pool water from flowing from the gap between the outer peripheral side of the main connector 50 and the inner wall surface of the sealing cover 70 to the vicinity of the conductive terminal 54.

[0054] Understandably, the conductive terminal 54 is at least partially disposed on the side of the first portion away from the base 51. The second portion is disposed on the side of the first portion away from the base 51, and the inner circumference of the second portion defines the internal space of the main connector 50.

[0055] In some implementations, combined Figure 4a and Figure 6As shown, the main connector 50 is provided with a partition portion 55, which separates the internal space of the main connector 50 parallel to the axial direction F1. Two conductive terminals 54 with opposite polarities are respectively disposed on both sides of the partition portion 55. Understandably, in the closed state, if the two sealing structures are damaged, a small amount of pool water may flow into the vicinity of the conductive terminals 54. Since the partition portion 55 is disposed between the two conductive terminals 54 with opposite polarities, the partition portion 55 acts as a barrier to prevent the small amount of pool water near the conductive terminals 54 from contacting the two conductive terminals 54 with opposite polarities simultaneously, thereby reducing the risk of electrolytic reaction between the two conductive terminals 54 with opposite polarities.

[0056] In some other embodiments, the partition portion 55 is generally parallel to the axial direction F1 of the main connector 50.

[0057] In some implementations, combined Figure 4a and Figure 6 As shown, the main connector 50 also includes a positioning pin 56 connected to the main connector 50, the positioning pin 56 being housed within an internal space. The positioning pin 56 is spaced apart from at least two conductive terminals 54. Understandably, the outer connector has a hole. When the main connector 50 and the outer connector are aligned, the positioning pin 56 is inserted into the hole of the outer connector, maintaining a predetermined relative angle between the main connector 50 and the outer connector circumferentially, allowing the conductive terminals 54 to accurately contact the conductive components of the outer connector.

[0058] For example, the length direction of the positioning pin 56 is parallel to the axial direction F1. Alternatively, the number of positioning pins 56 may be two or more to better define the relative angle between the main connector 50 and the external connector.

[0059] For example, combined Figure 4a and Figure 6 As shown, the conductive terminal 54 is columnar or needle-shaped.

[0060] Understandably, combined Figure 6 and Figure 7 As shown, the internal space of the main connector 50 roughly forms a channel structure, the insertion direction of which is roughly parallel to the axial direction F1. One end of the channel structure extends to the fixed end of the conductive terminal 54, and the other end of the channel structure is used for the insertion of an external connector.

[0061] Understandably, in different embodiments, the main connector 50 may be located in different positions relative to the fuselage. In some embodiments, when the bottom of the fuselage is vertically downward, the main connector 50 is located at the front end, rear end, or horizontal side of the fuselage, with the axial direction F1 of the main connector 50 generally parallel to the horizontal plane. In other embodiments, when the bottom of the fuselage is vertically downward, the main connector 50 is located at the top side of the fuselage, with the other end of the channel structure of the main connector 50 generally vertically upward.

[0062] Understandably, when both sealing structures are damaged and a small amount of pool water flows into the vicinity of the conductive terminal 54, the other end of the channel structure of the main connector 50 is not vertically downward when the cover is open, making it difficult for the pool water in the main connector 50 to drain.

[0063] In some implementations, combined Figure 4b and Figure 5b As shown, the main connector 50 is provided with a drain port 531, which connects the inner circumference of the main connector 50 and the outer circumference of the main connector 50. Understandably, when the main connector 50 is located at the front end, rear end, or horizontal side of the machine body, even if the other end of the channel structure corresponding to the main connector 50 is not vertically downward, the water near the conductive terminal 54 can still be discharged through the drain port 531.

[0064] Understandably, when the bottom of the body is vertically downward and the axial direction F1 of the main connector 50 is approximately parallel to the horizontal plane, the height of the drain port 531 is lower than the conductive terminal 54 or lower than the partition portion 55. This allows the water near the conductive terminal 54 to be easily drained when the position of the main connector 50 is fixed relative to the body, avoiding the need to lift and flip the entire pool cleaning robot for drainage.

[0065] In some implementations, combined Figure 4a and Figure 6 As shown, the main connector 50 is provided with two drain ports 531, one drain port 531 located on one side of the partition portion 55 and the other drain port 531 located on the other side of the partition portion 55. Understandably, by maintaining a distance between the two drain ports 531 along the outer circumference of at least two conductive terminals 54, the risk of electrolytic reaction between two conductive terminals 54 with opposite polarities can be reduced. Understandably, pool water on one side of the partition portion 55 is discharged from one drain port 531, and pool water on the other side of the partition portion 55 is discharged from the other drain port 531.

[0066] Understandably, the two drain outlets 531 are spaced at an angle of less than 90° along their outer circumference, so that the two drain outlets 531 can face downwards at the same time, which is beneficial for the pool water on both sides of the partition 55 to be discharged downwards simultaneously.

[0067] For example, the two drain ports 531 are spaced 20° apart along the outer periphery of at least two conductive terminals 54.

[0068] For example, when the bottom of the body is vertically downward, the axial direction F1 of the main connector 50 is approximately parallel to the horizontal plane, and the angle between the relative directions of the two ends of the partition portion 55 in the radial direction and the horizontal plane is approximately 45°. One drain port 531 is located below the partition portion 55, and the upper surface of the partition portion 55 can guide the pool water on the other side to the other drain port 531 for discharge.

[0069] In some implementations, combined Figure 4b , Figure 7 and Figure 8b As shown, one of the outer peripheral sides of the main connector 50 and the inner wall surface of the sealing cover 70 is provided with a positioning groove 532, and the other is connected to a positioning block 73. In the closed state, the positioning block 73 abuts against the side wall surface 533 of the positioning groove 532 along the axial direction F1. Understandably, through the abutment action between the positioning block 73 and the side wall surface 533 of the positioning groove 532, the main connector 50 can transmit a holding force to the sealing cover 70. This holding force can prevent the sealing cover 70 from moving away from the base 51 along the axial direction F1, so that the sealing cover 70 maintains a stable position relative to the base 51 or the main connector 50, thereby keeping the two sealing structures stable and preventing pool water from flowing into the vicinity of the conductive terminal 54 due to the release of the sealing structure.

[0070] For example, combined Figure 5b As shown, the positioning groove 532 is a roughly L-shaped space along the circumference. Understandably, after the positioning block 73 rotates circumferentially to the inflection point of the positioning groove 532, the sealing cover 70 can move axially F1 away from the base 51. After the positioning block 73 rotates circumferentially away from the inflection point of the positioning groove 532, the positioning block 73 is restrained axially F1 by the abutment of the side wall surface 533 of the positioning groove 532, thereby preventing the sealing cover 70 from moving axially F1 away from the base 51.

[0071] For example, combined Figure 5a As shown, the positioning groove 532 and the drain port 531 cooperate to form a roughly L-shaped space, that is, the drain port 531 forms part of the necessary passage space for the positioning block 73.

[0072] In another embodiment, the sealing cap 70 and the mating part 53 can also be engaged by a spring clip structure.

[0073] Understandably, the main connector 50 has a first end 502 and a second end 503 facing each other. In the closed state, the first end 502 of the main connector 50 faces the closed end 701 of the sealing cap 70. Understandably, in the closed state, the first end 502 of the main connector 50 is located between the second end 503 and the closed end 701 of the sealing cap 70. Understandably, the internal space is open at least at the first end 502 of the main connector 50.

[0074] For example, the middle portion of the main connector 50 is connected to the base 51. Understandably, the middle portion of the main connector 50 is located between the first end 502 and the second end 503, and the base 51 surrounds the middle portion of the main connector 50. Alternatively, in some other embodiments, the second end 503 of the main connector 50 is connected to the base 51.

[0075] In some implementations, combined Figure 4b and Figure 7 As shown, the main connector 50 has a bevel 522 formed between the inner and outer peripheral sides of the main connector 50. The bevel 522 is at least partially away from the first end 502 relative to the conductive terminals 54. The bevel slopes away from the first end 502 in the direction from the center of the main connector 50 towards the outer periphery. Understandably, when the main connector 50 is connected to the top of the casing, if the bottom of the casing is vertically downward, the first end 502 of the main connector 50, i.e., the other end where the channel structure forms an opening, will be at a vertically upward angle. Since the bevel 522 is formed between the inner and outer peripheral sides of the main connector 50, its height is lower than the conductive terminals 54, and the height of the bevel 522 gradually decreases in the direction from the center of the main connector 50 towards the outer periphery. Therefore, when the cover is open, the bevel 522 can guide water accumulated around the conductive terminals 54 out of the main connector 50.

[0076] Optionally, the inclined surface 522 may be a partial boundary surface forming the drain outlet 531, thereby defining the size of the drain outlet 531.

[0077] In some implementations, combined Figure 5b and Figure 7 As shown, the main connector 50 is provided with a limiting groove 523. The limiting groove 523 is arranged around the outer periphery of the main connector 50. The first sealing element 80 is housed in the limiting groove 523, thereby preventing the first sealing element 80 from shifting and keeping the first sealing element 80 in a stable position relative to the main connector 50.

[0078] Optionally, when the power module 100 includes a housing 20 and a power interface assembly 40, the base 51 is integrally connected to the housing 20.

[0079] Optionally, when the power interface assembly 40 is connected to the main body, the base 51 is integrally connected to the main body.

[0080] Understandably, the first seal 80 is flexible or elastic, thereby adapting to the shape of the gap between the outer periphery of the main connector 50 and the inner wall of the sealing cap 70, preventing pool water from passing through the gap between the outer periphery of the main connector 50 and the inner wall of the sealing cap 70. Exemplarily, the first seal 80 is made of silicone or rubber.

[0081] Understandably, the second seal 81 is flexible or elastic, thereby adapting to the shape of the gap between the opening end 702 of the sealing cap 70 and the base 51, preventing pool water from passing through the gap between the opening end 702 and the base 51. Exemplarily, the second seal 81 is made of silicone or rubber.

[0082] Optionally, combined Figure 1 and Figure 3 As shown, the power interface assembly 40 also includes a connecting strip 82, which is connected between the main connector 50 and the sealing cover 70 to prevent the sealing cover 70 from being lost.

[0083] Optionally, the second seal 81 is integrally injection molded with the base 51, so that the second seal 81 is not easily separated from the base 51, reducing the risk of loss of the second seal 81. Optionally, one end of the connecting strip 82 is integrally connected to the second seal 81, thereby reducing the assembly connection steps between the connecting strip 82 and the base 51 and improving the production efficiency of the power interface assembly 40.

[0084] Optionally, combined Figure 8a and Figure 9 As shown, a hook portion 74 is formed on the outer side of the closed end 701 of the sealing cap 70. The other end of the connecting strip 82 is fitted onto the hook portion 74.

[0085] Optionally, combined Figure 10 As shown, the second seal 81 has an annular groove 811, which surrounds the outer circumference of the main connector 50. The inner diameter of the annular groove 811 is larger than the outer diameter of the opening end 702 of the sealing cover 70. Understandably, an annular portion 812 of the second seal 81 is located on the inner circumference of the annular groove 811, and this annular portion 812 surrounds the outer circumference of the main connector 50. In the closed state, the annular portion 812 of the second seal 81 circumferentially abuts against the wall and the opening end 702 of the sealing cover 70. Because the second seal 81 forms an annular groove 811 on the outer circumference of the annular portion 812, the annular portion 812 can deform outwards when compressed on both sides of the axial direction F1, thereby improving the elasticity of the second seal 81 between the wall and the sealing cover 70, and allowing the second seal 81 to more fully adapt to the gap shape between the opening end 702 of the sealing cover 70 and the base 51.

[0086] Optionally, the opening direction of the annular groove 811 is approximately the same as the direction from the first end 502 to the second end 503. This means that the opening of the annular groove 811 faces the wall, preventing the accumulation of impurities within the annular groove 811.

[0087] Optionally, the opening direction of the annular groove 811 is approximately the same as the direction from the second end 503 to the first end 502.

[0088] For example, combined Figures 4a to 5b As shown, the main connector 50 includes a mounting portion 52 connected to the base 51 and a mating portion 53 connected to the mounting portion 52. At least two conductive terminals 54 are connected to the mounting portion 52. The mating portion 53 is disposed around the outer periphery of the conductive terminals 54. In the closed state, the mounting portion 52 and the mating portion 53 are housed in the inner cavity 71 of the sealing cover 70, the sealing cover 70 is positioned and connected to the mating portion 53, and the first sealing member 80 abuts circumferentially between the outer peripheral side of the mounting portion 52 and the inner wall surface of the sealing cover 70. In the open state, the sealing cover 70 is movably disposed relative to the main connector 50, and the mounting portion 52 and the mating portion 53 are outside the inner cavity 71.

[0089] Optionally, the width of the partition portion 55 is approximately equal to the outer diameter of the mounting portion 52 along the radial direction of the main connector 50. Optionally, the partition portion 55 is integrally connected to the mounting portion 52. Further, the two ends of the partition portion 55 along the radial direction are respectively connected to the inner circumferential side of the mating portion 53, thereby further increasing the creepage distance between the two conductive terminals 54 with opposite polarities and reducing the risk of electrolysis caused by a small amount of pool water near the conductive terminals 54.

[0090] For example, the base 51, mounting part 52, docking part 53 and partition part 55 are integrally connected.

[0091] For example, the mating portion 53 is disposed around the outer periphery of all the positioning pins 56 and conductive terminals 54.

[0092] For example, the conductive terminal 54 is fixedly inserted into the mounting portion 52.

[0093] For example, the drain port 531 is provided at the docking part 53.

[0094] For example, the positioning groove 532 is provided on the outer periphery of the docking portion 53. Understandably, after the positioning groove 532 is provided on the docking portion 53, the thickness of the docking portion 53 is small. For example, along the circumference of the docking portion 53, the position of the drain port 531 coincides entirely or partially with the positioning groove 532.

[0095] For example, combined Figure 5b As shown, the side wall 533 of the positioning groove 532 can be arc-shaped, thereby guiding the sealing cover 70 to gradually increase the contact force with the second sealing member 81.

[0096] For example, a portion of the surface of the mounting portion 52 forms the aforementioned inclined surface 522 to guide accumulated water out of the main connector 50.

[0097] The above embodiments are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A power interface assembly, characterized in that, include: A main connector is disposed at least partially around the periphery in the circumferential direction, and the inner circumferential side of the main connector defines an internal space; At least two conductive terminals are connected to the main connector and housed within the internal space; A base is connected to the main connector and is arranged around the outer periphery of the main connector; The sealing cap has a closed state and an open state relative to the main connector; the sealing cap has a closed end and an open end; in the closed state, the sealing cap is positioned and connected to the main connector, the main connector is housed in the sealing cap, a first sealing element is abutted circumferentially between the outer peripheral side of the main connector and the inner wall surface of the sealing cap, and a second sealing element is abutted circumferentially between the open end and the base.

2. The power interface assembly according to claim 1, characterized in that, The main connector is provided with a partition portion, which divides the internal space of the main connector parallel to the axial direction; two conductive terminals with opposite polarities are respectively disposed on both sides of the partition portion.

3. The power interface assembly according to claim 2, characterized in that, The main connector is provided with two drain ports; the drain ports are connected between the inner circumference of the main connector and the outer circumference of the main connector; one drain port is located on one side of the partition portion, and the other drain port is located on the other side of the partition portion.

4. The power interface assembly according to claim 1, characterized in that, It also includes a positioning pin connected to the main connector; the positioning pin is housed within the internal space; the positioning pin is spaced apart from the at least two conductive terminals.

5. The power interface assembly according to claim 1, characterized in that, The outer periphery of the main connector and one of the inner walls of the sealing cover are provided with a positioning groove, and the other is connected with a positioning block; in the closed state, the positioning block abuts against the side wall of the positioning groove along a predetermined axial direction.

6. The power interface assembly according to claim 1, characterized in that, The main connector has a first end and a second end opposite to each other; in the closed state, the first end faces the closed end of the sealing cap; the main connector is provided with a bevel, the bevel is formed between the inner peripheral side and the outer peripheral side of the main connector; at least a portion of the conductive terminals of the bevel are away from the first end; along the direction from the center of the main connector to the outer peripheral side, the bevel is inclined in a direction away from the first end.

7. The power interface assembly according to claim 1, characterized in that, The main connector is provided with a limiting groove; the limiting groove is arranged around the outer periphery of the main connector; the first sealing element is housed in the limiting groove.

8. A power supply module, characterized in that, Includes the power interface assembly as described in any one of claims 1 to 7.

9. A swimming pool cleaning robot, characterized in that, It includes the power module as described in claim 8 and the housing connected to the power module.

10. A swimming pool cleaning robot, characterized in that, Includes the power interface assembly as described in any one of claims 1 to 7.

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