A waterproof air duct device

Abstract

A waterproof duct device includes a duct body, a centrifugal impeller, a magnetic rotor ring, a stator core, a circuit board, an end cap, two power terminals, and a cover plate. The terminal block portion passes through and seals the insertion hole, while the terminal block portion is embedded in a longitudinal groove. The stator core is located within the stator cavity, and the magnetic rotor ring is fixed to the inner wall of the wheel seat. The stator cavity is inserted into the wheel seat, and a rotating shaft and a cylindrical shaft seat are pivotally connected via bearings. The connecting end of the cylindrical shaft seat is equipped with a shaft seal ring, and the rotating shaft rotatably engages with the shaft seal ring. The circuit board is located within the circuit board cavity. The end cap engages with the cover seat, and the outer interface is inserted into the cover seat. An annular sealing cylinder and the circuit board cavity are sealed together. The cover plate engages with the front opening and covers and seals the side opening of the volute. The end cap, the cover seat on the cover plate, and the circuit board cavity achieve sealing at the connection points of the terminals and the circuit board, effectively preventing water damage to the circuit board. The power terminals, with this structure, are tightly sealed to the end cap and facilitate electrical connection.

Description

Technical Field

[0001] This utility model relates to a food waste processor, and more particularly to a waterproof channel device. Background Technology

[0002] The existing technology, Chinese patent 202120598363.5, discloses a food waste disposer, comprising: a body and a cover on the body; a processing bin is disposed inside the body; an air inlet and an air outlet are provided on the outer wall of the body; a hot air assembly, including an air duct disposed inside the body, communicating with the interior of the processing bin, with the air inlet end of the air duct communicating with the air outlet; a heating element and an exhaust fan disposed in the air duct; and a purification assembly disposed within the air duct for purifying the gas discharged from the processing bin. The problems are: it requires a power supply connection; the air duct is inconvenient to disassemble and assemble; and the air duct device is inconvenient to clean. Utility Model Content

[0003] The purpose of this utility model is to provide a waterproof ventilation duct device that is easy to use and easy to clean with water.

[0004] This utility model is implemented as follows: a waterproof air duct device, characterized in that it includes an air duct body, a centrifugal impeller, a magnetic rotor ring, a stator core, a circuit board, end caps, two power terminals, and a cover plate.

[0005] The main body of the air duct includes an air inlet chamber, an air outlet chamber located on one side of the air inlet chamber, and a volute located on the upper part of the air outlet chamber. The air outlet chamber and the volute are provided with a front opening at the part opposite to the volute. The volute has a side opening and an air inlet hole located at the closed end. The air inlet hole and the air inlet chamber are connected.

[0006] A centrifugal impeller includes a wheel base with one end open and a shaft.

[0007] The end cap includes two longitudinal grooves, an outer interface, an annular sealing cylinder, and insertion holes at the upper end and middle of the longitudinal grooves;

[0008] The power supply terminal includes a terminal block portion and a wiring block portion, with the wiring block portion located at both ends of the terminal block portion;

[0009] The cover plate includes a stator cavity, a cylindrical bearing seat disposed within the stator cavity, a circuit board cavity surrounding the stator cavity, and a cover seat.

[0010] The terminal block passes through the plug hole and is sealed, while the terminal block is embedded in the longitudinal groove. The stator core is located in the stator cavity, and the magnetic rotor ring is fixed to the inner wall of the wheel seat. The stator cavity is inserted into the wheel seat, and the rotating shaft and the cylindrical shaft seat are pivotally connected by bearings. The connecting end of the cylindrical shaft seat is provided with a shaft seal ring, and the rotating shaft and the shaft seal ring are rotatably engaged. The circuit board is located in the circuit board cavity. The end cover is fastened to the cover seat, and the outer interface is inserted into the cover seat. The annular sealing cylinder and the circuit board cavity are sealed together. The cover plate is fastened to the front opening and covers and seals the side opening of the volute.

[0011] The waterproof ventilation duct device is characterized in that: an annular groove is provided on the end face of the circuit board cavity; and a sealing ring is also included;

[0012] The sealing ring is located in the annular groove, and the annular sealing cylinder is inserted into the annular groove and presses against the sealing ring.

[0013] The waterproof ventilation duct device is characterized in that: a fixing post is provided on the cover plate between the cover seat and the circuit board cavity; screws pass through the end cover and are screwed into the fixing post.

[0014] The waterproof ventilation duct device is characterized in that: the end cap is provided with a shaft seat with an open end, and the cylindrical shaft seat is inserted into the shaft seat.

[0015] The waterproof ventilation duct device is characterized by having an open, suspended end on the cylindrical bearing.

[0016] It also includes an inner end cap made of plastic or silicone, which comprises a circular cover plate and a cylindrical sealing portion.

[0017] The cylindrical sealing part is inserted into the cylindrical bearing seat, and the circular cover plate fits against the end of the cylindrical bearing seat.

[0018] The waterproof ventilation duct device is characterized in that: the side opening of the volute is provided with a insertion groove.

[0019] The cover plate is provided with a volute cavity, and the wall plate of the volute cavity is inserted into the insertion slot.

[0020] This utility model of a waterproof ventilation duct device, with its end cap, cover plate seat and circuit board cavity, achieves sealing of the wiring terminals and circuit board connection points, effectively preventing water damage to the circuit board; the power terminals adopt this structure to seal tightly with the end cap, and the electrical connection is convenient. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention.

[0022] Figure 2 This is one of the exploded perspective views of this utility model.

[0023] Figure 3 This is the second exploded perspective view of this utility model.

[0024] Figure 4 This is the third exploded perspective view of this utility model.

[0025] Figure 5 This is the fourth exploded perspective view of this utility model.

[0026] Figure 6 This is the fifth exploded perspective view of this utility model.

[0027] Figure 7 This is a perspective view of the centrifugal impeller of this utility model.

[0028] Figure 8 This is a perspective view of the present invention. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a waterproof ventilation duct device includes a duct body 1, a centrifugal impeller 2, a magnetic rotor ring 31, a stator core 32, a circuit board 4, an end cover 5, two power terminals 6, and a cover plate 7.

[0032] The main body of the air duct 1 includes an air inlet chamber 11, an air outlet chamber 12 located on one side of the air inlet chamber, and a volute 13 located on the upper part of the air outlet chamber 12. The air outlet chamber 12 and the volute 13 are provided with a front opening at the part opposite to each other. The volute 13 has a side opening and an air inlet hole 131 located at the closed end. The air inlet hole 131 is connected to the air inlet chamber 11. The air outlet chamber 12 has a lower air outlet. An air inlet connector 111 is provided on the upper part of the air inlet chamber 11.

[0033] The centrifugal impeller 2 includes a wheel base 21 with one end open, a shaft 22, a front ring (not labeled), a rear ring, and blades; the structure of the centrifugal impeller 2 is known technology.

[0034] End cap 5 includes two longitudinal grooves 51, an outer interface 52, an annular sealing cylinder 53, and insertion holes 511 provided at the upper end and middle of the longitudinal grooves 51;

[0035] The power terminal 6 includes a terminal block portion 61 and a wiring block portion 62, with the wiring block portion 62 located at both ends of the terminal block portion 61.

[0036] The cover plate 7 includes a stator cavity 71, a cylindrical bearing 72 disposed in the stator cavity 71, a circuit board cavity 73 surrounding the stator cavity 71, and a cover 74. A sealing ring cavity 721 is provided in the connection end between the cylindrical bearing 72 and the stator cavity 71.

[0037] The terminal block 62 passes through the insertion hole 511 and is sealed, and the terminal block 61 is embedded in the longitudinal groove 51; the stator core 32 is located in the stator cavity 71, and the magnetic rotor ring 31 is fixed to the inner wall of the wheel seat 21; the stator cavity 71 is inserted into the wheel seat 21, the magnetic rotor ring 31 surrounds the stator cavity 71 with a gap, the rotating shaft 22 and the cylindrical shaft seat 72 are pivotally connected by a bearing, the sealing ring cavity 721 of the cylindrical shaft seat 72 is provided with a shaft sealing ring 10, and the rotating shaft 22 is rotatably engaged with the shaft sealing ring 10; the circuit board 4 is located in the circuit board cavity 73; the end cover 5 is fastened to the cover seat 74, the outer interface 52 is inserted into the cover seat 74, and the annular sealing cylinder 53 and the circuit board cavity 73 are sealed together; the cover plate 7 is fastened to the front opening and covers and seals the side opening of the volute 13. With this structure, the power terminal 6 and end cap 5 are sealed, the annular sealing cylinder 53 and circuit board cavity 73 are sealed, and the terminal block portion 62 of the power terminal 6 and the circuit board cavity 73 are opposite to each other, achieving a water seal. When cleaning is required, it can be directly cleaned in water. The shaft seal ring 10 is provided to prevent water from entering the cylindrical shaft seat 72 and protect the bearing.

[0038] As a further improvement of this utility model: the side opening of the volute 13 is provided with a insertion groove 132.

[0039] The cover plate 7 is provided with a volute cavity 75, and the wall plate of the volute cavity 75 is inserted into the insertion groove 132.

[0040] As a further improvement of this utility model: an annular groove 731 is provided on the end face of the circuit board cavity 73; and a sealing ring 8 is also included;

[0041] The sealing ring 8 is located in the annular groove 731, and the annular sealing cylinder 53 is inserted into the annular groove 731 and presses the sealing ring 8.

[0042] As a further improvement of this utility model: a fixing post is provided on the cover plate 7 between the cover seat 74 and the circuit board cavity 73; the screw passes through the end cover 5 and is screwed into the fixing post.

[0043] As a further improvement of this utility model: the end cover 5 is provided with a shaft seat 54 with an open end, and the cylindrical shaft seat 72 is inserted into the shaft seat 54.

[0044] As a further improvement of this utility model: the suspended end of the cylindrical bearing 72 is open;

[0045] It also includes an inner end cap 9 made of plastic or silicone, the inner end cap 9 comprising a circular cover plate 91 and a cylindrical sealing part 92.

[0046] The cylindrical sealing part 92 is inserted into the cylindrical bearing seat 72, and the circular cover plate 7 fits against the end of the cylindrical bearing seat 72. Because the cylindrical bearing seat 72 is inserted into the bearing seat 54, the inner end cover 9 can be effectively prevented from falling off.

[0047] In this embodiment, the cylindrical bearing 72 can also be closed at the suspended end and extend into the bearing. This structure reduces vibration and noise.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A waterproof ventilation duct device, characterized in that: It includes the main body of the air duct, centrifugal impeller, magnetic rotor ring, stator core, circuit board, end cover, two power terminals and cover plate. The main body of the air duct includes an air inlet chamber, an air outlet chamber located on one side of the air inlet chamber, and a volute located on the upper part of the air outlet chamber. The air outlet chamber and the volute are provided with a front opening at the part opposite to the volute. The volute has a side opening and an air inlet hole located at the closed end. The air inlet hole and the air inlet chamber are connected. A centrifugal impeller includes a wheel base with one end open and a shaft. The end cap includes two longitudinal grooves, an outer interface, an annular sealing cylinder, and insertion holes at the upper end and middle of the longitudinal grooves; The power supply terminal includes a terminal block portion and a wiring block portion, with the wiring block portion located at both ends of the terminal block portion; The cover plate includes a stator cavity, a cylindrical bearing seat disposed within the stator cavity, a circuit board cavity surrounding the stator cavity, and a cover seat. The terminal block passes through the plug hole and is sealed, while the terminal block is embedded in the longitudinal groove. The stator core is located in the stator cavity, and the magnetic rotor ring is fixed to the inner wall of the wheel seat. The stator cavity is inserted into the wheel seat, and the rotating shaft and the cylindrical shaft seat are pivotally connected by bearings. The connecting end of the cylindrical shaft seat is provided with a shaft seal ring, and the rotating shaft and the shaft seal ring are rotatably engaged. The circuit board is located in the circuit board cavity. The end cover is fastened to the cover seat, and the outer interface is inserted into the cover seat. The annular sealing cylinder and the circuit board cavity are sealed together. The cover plate is fastened to the front opening and covers and seals the side opening of the volute.

2. The waterproof ventilation duct device according to claim 1, characterized in that: The circuit board cavity has an annular groove on its end face; it also includes a sealing ring; The sealing ring is located in the annular groove, and the annular sealing cylinder is inserted into the annular groove and presses against the sealing ring.

3. The waterproof ventilation duct device according to claim 1, characterized in that: A fixing post is provided on the cover plate between the cover seat and the circuit board cavity; The screw passes through the end cap and engages with the fixing post.

4. The waterproof ventilation duct device according to claim 1, characterized in that: The end cap is provided with a shaft seat with an open end, and the cylindrical shaft seat is inserted into the shaft seat.

5. The waterproof ventilation duct device according to claim 4, characterized in that: The cylindrical bearing has an open end; It also includes an inner end cap made of plastic or silicone, the inner end cap comprising a circular cover plate and a cylindrical sealing part, the cylindrical sealing part being inserted into a cylindrical shaft seat, and the circular cover plate being fitted to the end of the cylindrical shaft seat.

6. The waterproof ventilation duct device according to claim 1, 2, 3, 4 or 5, characterized in that: The volute is provided with a insertion slot on its side opening. The cover plate is provided with a volute cavity, and the wall plate of the volute cavity is inserted into the insertion slot.

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