A water flosser water pump and a water flosser

Abstract

The present invention discloses a water flosser water pump and a water flosser. The water flosser water pump includes a control board, a spring, a housing, and a magnetic induction assembly. The housing includes a first housing and a second housing. The control board is installed on the second housing. A first cylindrical cavity and a second cylindrical cavity that are connected and coaxial are provided inside the first housing and the second housing. The magnetic induction assembly is arranged in the first cylindrical cavity and the second cylindrical cavity. The magnetic induction assembly includes a stator electromagnetic coil assembly and a rotor assembly. A part of the rotor assembly penetrates into the stator electromagnetic coil assembly. The rotor assembly includes a connecting shaft, a piston, a magnet, and a magnetic ring. The piston, the magnet, and the magnetic ring are all sleeved on the connecting shaft. One end of the spring is connected to one end of the connecting shaft. The magnetic ring is arranged close to the spring and is located outside the stator electromagnetic coil assembly. This application improves the efficiency of the water pump, removes the gear assembly, reduces the noise of the gear assembly, and has a simpler structure.

Description

Technical Field

[0001] The present invention relates to the technical field of oral irrigators, and particularly to an oral irrigator water pump and an oral irrigator. Background Art

[0002] An oral irrigator is an auxiliary tool for oral cleaning, which uses the method of pulsed water flow impact to clean teeth and dental floss. It mainly has portable and desktop types, and the general flushing pressure is between 0 and 90 psi.

[0003] Currently, the water pump of the oral irrigator on the market drives the gear assembly through a rotating motor, and then transmits it to the crankshaft of the piston of the piston pump. Its principle is to convert the rotational motion into a linear motion. This method has the problems of complex gear structure, large transmission loss, low water pump efficiency, and high noise of the gear structure. Summary of the Invention

[0004] The present invention provides an oral irrigator water pump, aiming to solve the above problems.

[0005] According to the first aspect of the embodiments of the present application, an oral irrigator water pump is provided, including: a control board, a spring, a housing, and a magnetic induction assembly. The housing includes a first housing and a second housing connected to each other. The control board is installed on the second housing. A first cylindrical cavity and a second cylindrical cavity that are connected and coaxial are provided inside the first housing and the second housing. The magnetic induction assembly is arranged in the first cylindrical cavity and the second cylindrical cavity. The magnetic induction assembly includes a stator electromagnetic coil assembly and a rotor assembly. A part of the rotor assembly penetrates into the stator electromagnetic coil assembly. The rotor assembly includes a connecting shaft, a piston, a magnet, and a magnetic ring. The piston, the magnet, and the magnetic ring are all sleeved on the connecting shaft. One end of the spring is connected to one end of the connecting shaft. The magnetic ring is arranged close to the spring. The magnet is arranged inside the stator electromagnetic coil assembly, and the magnetic ring is arranged outside the stator electromagnetic coil assembly.

[0006] In the oral irrigator water pump of the present invention, the stator electromagnetic coil assembly includes an electromagnetic coil and a mounting shell. A through-hole part is provided inside the mounting shell. The magnet is arranged in the through-hole part. A groove ring part is provided on the side wall of the mounting shell. The electromagnetic coil is arranged in the groove ring part.

[0007] In the oral irrigator water pump of the present invention, the mounting shell is a stepped cylindrical part, which includes a first step and a second step. The diameter of the first step is larger than that of the second step. The groove ring part is arranged on the side wall of the first step.

[0008] In the water pump of the oral irrigator according to the present invention, the second cylindrical cavity is in the shape of a stepped hole, including a first-stage hole portion and a second-stage hole portion. The diameter of the first-stage hole is adapted to the first step, and the diameter of the second-stage hole is adapted to the second step.

[0009] In the water pump of the oral irrigator according to the present invention, the magnetic induction assembly further includes a sliding bearing sleeved on the connecting shaft. The second cylindrical cavity further includes a third-stage hole portion and a fourth-stage hole portion. The diameter of the third-stage hole is adapted to the outer diameter of the sliding bearing, and the magnetic ring is arranged in the fourth-stage hole portion.

[0010] In the water pump of the oral irrigator according to the present invention, the spring is arranged in the fourth-stage hole portion.

[0011] In the water pump of the oral irrigator according to the present invention, the first housing includes a water inlet and a water outlet communicating with the first cylindrical cavity, and the piston is arranged at one end of the connecting shaft close to the water inlet and the water outlet.

[0012] In the water pump of the oral irrigator according to the present invention, the diameter of the through-hole portion is larger than the diameter of the first cylindrical cavity.

[0013] According to the second aspect of the embodiments of the present application, an oral irrigator is provided, including the above-mentioned water pump of the oral irrigator.

[0014] The technical solutions provided by the embodiments of the present application may include the following beneficial effects: The present application designs a water pump of an oral irrigator, reduces the loss of transmitted energy, improves the efficiency of the water pump, and reduces the noise of the water pump of the oral irrigator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of the water pump of the oral irrigator according to the embodiment of the present invention;

[0017] Figure 2 is an exploded view of the water pump of the oral irrigator according to the embodiment of the present invention;

[0018] Figure 3 is a sectional view of the water pump of the oral irrigator according to the embodiment of the present invention;

[0019] Figure 4 is a sectional view of the outer shell of the water pump of the oral irrigator according to the embodiment of the present invention.

[0020] Label Description:

[0021] 10. Control board; 20. Housing; 21. First housing; 211. First cylindrical cavity; 212. Water inlet; 213. Water outlet; 214. Cylindrical part; 215. Ring plate part; 22. Second housing; 221. Second cylindrical cavity; 2211. First-stage hole part; 2212. Second-stage hole part; 2213. Third-stage hole part; 2214. Fourth-stage hole part; 30. Magnetic induction component; 31. Stator electromagnetic coil component; 311. Electromagnetic coil; 312. Mounting shell; 3121. Through-hole part; 3122. Groove ring part; 3123. First step; 3124. Second step; 32. Rotor component; 321. Connecting shaft; 322. Piston; 323. Magnet; 324. Magnetic ring; 33. Sliding bearing; 40. Spring. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] It should also be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0024] It should be further understood that the term " / and" as used in the specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0025] Please refer to Figures 1-4As shown in the figure, the present invention discloses a water flosser water pump, which includes a control board 10, a housing 20, a magnetic induction component 30 and a spring 40. The housing includes a first housing 21 and a second housing 22 connected to each other. The control board is installed on the second housing. A first cylindrical cavity 211 and a second cylindrical cavity 221 that are connected and coaxial are provided inside the first housing 21 and the second housing 22. The first cylindrical cavity is provided inside the first housing, and the second cylindrical cavity is provided inside the second housing. The magnetic induction component is provided inside the first cylindrical cavity and the second cylindrical cavity. The magnetic induction component 30 includes a stator electromagnetic coil assembly 31 and a rotor assembly 32. A part of the rotor assembly penetrates into the stator electromagnetic coil assembly. The rotor assembly 32 includes a connecting shaft 321, a piston 322, a magnet 323 and a magnetic ring 324. The piston, the magnet and the magnetic ring are all sleeved on the connecting shaft. One end of the spring is connected to one end of the connecting shaft, and the other end of the spring is fixed to the outside. The magnetic ring is arranged close to the spring. The magnet is arranged inside the stator electromagnetic coil assembly, and the magnetic ring is arranged outside the stator electromagnetic coil assembly.

[0026] In this embodiment, the electromagnetic coil assembly generates a magnetic field inside the electromagnetic coil assembly through the control line of the control board, so as to act on the magnet inside the electromagnetic coil assembly, driving the magnet, the connecting rod, the piston and the magnetic ring to slide inside the first cylindrical cavity and the second cylindrical cavity, thereby forming a pulsed water pressure. The magnetic ring sends a signal to the controller on the control board under the Hall signal, so as to control the position of the magnetic ring. Since the piston and the magnetic ring move synchronously, the movement of the piston stops at a set distance through the action of the magnetic ring. There is no transmission loss in this application, the efficiency of the water pump is high, and the transmission components of the water pump are reduced, reducing the volume of the water flosser water pump. This application removes the gear assembly, improves the noise of the gear assembly, and has a simpler structure.

[0027] In an alternative embodiment, the stator electromagnetic coil assembly 31 includes an electromagnetic coil 311 and a mounting shell 312. A through-hole portion 3121 is provided inside the mounting shell 312, and the magnet is arranged inside the through-hole portion. A groove ring portion 3122 is provided on the side wall of the mounting shell, and the electromagnetic coil is arranged inside the groove portion. The electromagnetic coil is connected to the control board, and the current passing through the electromagnetic coil is controlled by the control board to generate a changing magnetic field, thereby controlling the movement of the rotor assembly.

[0028] In an alternative embodiment, the mounting shell is a stepped cylindrical member. The mounting shell 312 includes a first step 3123 and a second step 3124. The diameter of the first step is greater than that of the second step. The groove ring portion is provided on the side wall of the first step. The second cylindrical cavity 221 is in the shape of a stepped hole, which includes a first-stage hole portion 2211 and a second-stage hole portion 2212. The diameter of the first-stage hole portion is adapted to the diameter of the first step of the mounting shell, and the diameter of the second-stage hole portion is adapted to the diameter of the second step of the mounting shell. In this embodiment, the mounting shell is disposed within the first-stage hole portion and the second-stage hole portion of the second cylindrical cavity. The first housing 21 includes a cylindrical portion 214 and a circular ring plate portion 215. The circular ring plate portion is disposed at one end of the cylindrical portion, and the circular ring plate portion is connected to the opening at the first-stage hole portion of the second housing.

[0029] In an alternative embodiment, the magnetic induction assembly 30 further includes a sliding bearing 33 sleeved on the connecting shaft. The second cylindrical cavity further includes a third-stage hole portion 2213 and a fourth-stage hole portion 2214. The diameter of the third-stage hole portion is adapted to the outer diameter of the sliding bearing. By providing the sliding bearing, the stability of the movement of the mover assembly is increased. Specifically, the diameter of the third-stage hole portion is smaller than that of the second-stage hole portion, and the diameter of the fourth-stage hole portion is smaller than that of the third-stage hole portion. The magnetic ring is disposed within the fourth-stage hole portion, and the spring is disposed within the fourth-stage hole portion. One end of the spring is connected to the end of the connecting shaft within the fourth-stage hole portion, and the other end of the spring is connected to the outside. The spring will also elastically deform as the connecting shaft moves. In this embodiment, the first-stage hole portion, the second-stage hole portion, the third-stage hole portion, and the fourth-stage hole portion are arranged in sequence. The piston is disposed at the end away from the spring. The first housing 21 includes a water inlet 212 and a water outlet 213 that communicate with the first cylindrical cavity. The piston is disposed near the water inlet and the water outlet of the connecting shaft to prevent water from entering the through-hole portion of the mounting shell. In a preferred embodiment, the diameter of the through-hole portion on the mounting shell is greater than the diameter of the first cylindrical cavity. Specifically, the piston is disposed within the first cylindrical cavity, and the outer diameter of the piston is the same as the inner diameter of the first cylindrical cavity; the magnet is disposed within the through-hole portion of the mounting shell, and the outer diameter of the magnet is the same as the inner diameter of the through-hole portion. That is, the magnet cannot slide within the first cylindrical cavity, and the magnet also plays a positioning role to limit the piston to slide within the first cylindrical cavity, further ensuring that water does not enter the through-hole.

[0030] This application also relates to a dental irrigator, which includes the above-mentioned dental irrigator water pump. It should be noted that one-way valves are provided at the water inlet and the water outlet of the dental irrigator water pump to control the flow direction of water.

[0031] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oral irrigator water pump, characterized in that, Comprising: A control board, a spring, a housing, and a magnetic induction assembly. The housing includes a first housing and a second housing connected to each other. The control board is installed on the second housing. A first cylindrical cavity and a second cylindrical cavity that are connected and coaxial are provided inside the first housing and the second housing. The magnetic induction assembly is disposed in the first cylindrical cavity and the second cylindrical cavity. The magnetic induction assembly includes a stator electromagnetic coil assembly and a rotor assembly. A part of the rotor assembly penetrates into the stator electromagnetic coil assembly. The rotor assembly includes a connecting shaft, a piston, a magnet, and a magnetic ring. The piston, the magnet, and the magnetic ring are all sleeved on the connecting shaft. One end of the spring is connected to one end of the connecting shaft. The magnetic ring is disposed close to the spring. The magnet is disposed inside the stator electromagnetic coil assembly. The magnetic ring is disposed outside the stator electromagnetic coil assembly; The stator electromagnetic coil assembly includes an electromagnetic coil and a mounting shell. A through-hole portion is provided inside the mounting shell. The magnet is disposed in the through-hole portion. A groove ring portion is provided on the side wall of the mounting shell. The electromagnetic coil is disposed in the groove ring portion; The mounting shell is a stepped cylindrical member, which includes a first step and a second step. The diameter of the first step is greater than the diameter of the second step. The groove ring portion is provided on the side wall of the first step; The second cylindrical cavity is in a stepped hole shape, including a first-stage hole portion and a second-stage hole portion. The diameter of the first-stage hole is adapted to the first step. The diameter of the second-stage hole is adapted to the second step; The magnetic induction assembly further includes a sliding bearing sleeved on the connecting shaft. The second cylindrical cavity further includes a third-stage hole portion and a fourth-stage hole portion. The diameter of the third-stage hole portion is adapted to the outer diameter of the sliding bearing. The magnetic ring is disposed in the fourth-stage hole portion; The first housing includes a water inlet and a water outlet that communicate with the first cylindrical cavity. The piston is disposed at one end of the connecting shaft close to the water inlet and the water outlet; The spring is disposed in the fourth-stage hole portion.

2. The water flosser pump according to claim 1, wherein The diameter of the through-hole portion is greater than the diameter of the first cylindrical cavity.

3. An oral irrigator, characterized in that, Including the dental irrigator water pump according to any one of claims 1-2.

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