A fully automatic electric toothbrush integrating a vibrating motor and a piston water pump

Abstract

This utility model discloses a fully automatic electric toothbrush integrating a vibrating motor and a piston water pump. It includes a brush head assembly, a housing assembly, and a core mechanism housed within the housing assembly. The housing assembly contains a water storage tank. The core mechanism includes a core mounting base, a motor assembly, and a water pump assembly. The motor assembly has a flow channel. The input end of the water pump assembly is inserted into the water storage tank, and the output end of the water pump assembly is connected to the bottom end of the flow channel. The brush head assembly is detachably mounted to the top of the housing assembly and is connected to the top of the flow channel. This utility model features a water storage tank inside the housing assembly, which pumps water through the motor assembly and brush head assembly. The water is then sprayed out through the brush head assembly to rinse the gums. By using the motor assembly to drive the brush head assembly to vibrate at high frequency, it more effectively removes dirt from the gums during brushing, integrating automatic rinsing and brushing functions.

Description

Technical Field

[0001] This utility model relates to the field of oral cleaning instrument technology, specifically a fully automatic electric toothbrush that integrates a sweeping motor and a piston water pump. Background Technology

[0002] Existing electric toothbrushes use a DC motor with a gear-driven piston water pump, which cannot completely eliminate the noise caused by mechanical transmission. In addition, older models do not have a water storage function, requiring users to connect an external water pipe, which is inconvenient. In order to achieve brushing and rinsing in one step and more effectively remove plaque near the gum line and gingival sulcus, a new type of fully automatic electric toothbrush integrating a sweeping and vibrating motor and a piston water pump has been developed. Utility Model Content

[0003] The purpose of this invention is to provide a fully automatic electric toothbrush that integrates a sweeping motor and a piston water pump, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic electric toothbrush integrating a sweeping vibration motor and a piston water pump, comprising a brush head assembly, a housing assembly, and a core device disposed within the housing assembly. The housing assembly contains a water storage tank. The core device includes a core mounting base, a motor assembly, and a water pump assembly. The motor assembly has a longitudinally penetrating flow channel. The input end of the water pump assembly is inserted into the water storage tank, and the output end of the water pump assembly is connected to the bottom end of the flow channel. The brush head assembly is detachably mounted to the top of the housing assembly, and the brush head assembly is connected to the top of the flow channel.

[0005] Preferably, the motor assembly includes a motor housing, a stator core, a rotor structure, and a motor rear cover. The motor housing and the motor rear cover are fitted together, forming an installation cavity. The stator core and rotor assembly are installed in the installation cavity. Two nylon wire frames are also provided in the installation cavity, and the two nylon wire frames abut against both ends of the stator core. The stator core has stacked wire core branches, and each wire core branch is wound with an enameled coil. The rotor structure is located between two wire core branches.

[0006] Preferably, the rotor structure includes an output shaft, a rotor core, and four permanent magnets. A flow channel is disposed on the output shaft, and the output shaft is sleeved inside the rotor core. The rotor core is provided with four evenly arranged mounting supports, and mounting slots are formed between any two adjacent mounting supports. The four permanent magnets are respectively installed into the four mounting slots.

[0007] Preferably, the two ends of the output shaft pass through the top of the motor housing and the bottom of the motor rear cover, respectively, and the two ends of the output shaft are rotatably connected to the motor housing and the motor rear cover, respectively.

[0008] Preferably, the water pump assembly includes a live water chamber, a DC motor, and a water pump base. The water pump base has a flow channel two and a mounting cavity two. The DC motor is installed in the mounting cavity two. The live water chamber has a longitudinally penetrating flow channel three. One-way valves are provided at both ends of the flow channel three. The flow channel three is connected to the flow channel two. The side end of the live water chamber has an opening that communicates with the flow channel three. A rubber piston diaphragm is installed on the opening. An eccentric shaft and a piston connecting rod are sequentially connected to the movable shaft of the DC motor. One end of the piston connecting rod is movably connected to the eccentric shaft, and the other end of the piston connecting rod is connected to the rubber piston diaphragm.

[0009] Preferably, the top of the live water tank is provided with a positioning groove, which is connected to the top of the flow channel three. The structure of the positioning groove is adapted to the bottom of the motor assembly, and the bottom of the motor assembly can be embedded in the positioning groove. After the motor assembly is embedded in the positioning groove, the flow channel one and the flow channel three are connected.

[0010] Preferably, the water pump base is connected to a suction pipe, which is connected to the flow channel, and a filter screen is provided at the bottom of the suction pipe.

[0011] Preferably, the second mounting cavity is further provided with a germicidal lamp plate, which is located between the DC motor and the bottom wall of the water pump housing. The water pump housing is transparent, and the light generated by the germicidal lamp plate can be directly shone into the water storage tank, which can accommodate the brush head assembly.

[0012] Preferably, the mechanism further includes a battery and a PCB board mounted on the mechanism mounting base. The battery can supply power to the PCB board, motor assembly and water pump assembly. The PCB board is used to control the start and stop of the motor assembly and water pump assembly. The mechanism mounting base is also provided with a wireless charging receiver for charging the battery.

[0013] Preferably, the brush head assembly includes a nozzle handle and a brush head plug. The brush head handle has a flow channel four, and the top of the flow channel four has a nozzle water outlet hole. The nozzle handle has bristles corresponding to the position of the nozzle water outlet hole. The brush head plug is installed at the bottom of the flow channel four and has a shaft hole on the brush head plug, which can be detachably inserted into the motor assembly.

[0014] Preferably, the outer casing assembly includes a main outer casing and a water tank cover that are fitted together. The main outer casing and the water tank cover are detachably installed via a snap-fit ​​structure. The main outer casing is provided with a water inlet that communicates with the water storage tank, and the water inlet is provided with a detachable water inlet cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention integrates automatic rinsing and brushing functions by setting up a brush head assembly, a housing assembly, and a motor device set inside the housing assembly. The housing assembly has a water storage tank inside, and water is pumped by a water pump assembly, passing through a motor assembly and a brush head assembly, and then spraying water through the brush head assembly to achieve the effect of rinsing the gums. By setting up a motor assembly to drive the brush head assembly to vibrate at high frequency, the dirt on the gums is more effectively removed when brushing teeth. Attached Figure Description

[0016] Figure 1 A partial structural cross-section of this utility model. Figure 1 ; Figure 2 A partial structural cross-section of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the mechanism of this utility model; Figure 4 This is an exploded view of the mechanism of this utility model; Figure 5 This is an exploded view of the structure of the motor assembly of this utility model; Figure 6 This is an exploded view of the rotor structure of this utility model; Figure 7 This is a cross-sectional view of the motor assembly of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Please see Figures 1 to 7This utility model provides an embodiment of a fully automatic electric toothbrush integrating a sweeping motor and a piston water pump, including a brush head assembly 10, a housing assembly 100, and a core device disposed within the housing assembly 100. The housing assembly 100 has a water storage tank 5. The core device includes a core fixing seat 20, a motor assembly 30, and a water pump assembly 40. The motor assembly 30 is provided with a longitudinally penetrating flow channel 31. The input end of the water pump assembly 40 is inserted into the water storage tank 5, and the output end of the water pump assembly 40 is connected to the bottom end of the flow channel 31. The brush head assembly 10 is detachably installed on the top of the housing assembly 100, and the brush head assembly 10 is connected to the top of the flow channel 31.

[0020] In this technical solution, the motor assembly 30 includes a motor housing 32, a stator core 33, a rotor structure 34, and a motor rear cover 35. The motor housing 32 and the motor rear cover 35 are assembled together, forming an installation cavity. The stator core 33 and the rotor assembly 34 are installed in the installation cavity. Two nylon wire frames 36 are also provided in the installation cavity, and the two nylon wire frames abut against both ends of the stator core 33 to fix the stator core 33. The stator core 33 has stacked wire core branches 331 inside, and each wire core branch 331 is wound with an enameled coil 332. The rotor structure 34 is located between two wire core branches 331, and the two sets of enameled coils 332 are respectively connected to the positive and negative power supplies. The rotor structure 34 includes an output shaft 341, a rotor core 342, and four permanent magnets 343. A flow channel 31 is disposed on the output shaft 341, and the output shaft 341 is sleeved inside the rotor core 342. The rotor core 342 is provided with four evenly arranged mounting supports 344, and any two adjacent mounting supports 344 form a mounting slot. The four permanent magnets 343 are respectively installed in the four mounting slots. The two ends of the output shaft 341 pass through the top of the motor housing 32 and the bottom of the motor rear cover 35, respectively. Bearings are sleeved on both ends of the output shaft 341, and the two bearings are respectively installed on the top of the inner wall of the motor housing 32 and the top of the motor rear cover 35, so that the output shaft 341 is rotatably connected to the motor housing 32 and the motor rear cover 35.

[0021] The above assembly structure achieves a compact design and adopts the brushless motor principle of stator coils combined with rotor fixed magnets. The advantage is that it increases motor power within the same volume. Four tile-shaped magnets have been redesigned. If the two adjacent permanent magnets 343 on the upper side are both N poles, that is, the two adjacent permanent magnets 343 on the lower side are both S poles, the layout angle of the four permanent magnets 343 is 98 degrees, which increases the radial left and right swing angle of the rotor, increases the vibration frequency, and improves the removal of tartar.

[0022] In this technical solution, the water pump assembly 40 includes a live water chamber 41, a DC motor 42, and a water pump base 43. The water pump base 43 is provided with a second flow channel 44 and a second mounting cavity. The DC motor 42 is installed in the second mounting cavity. The live water chamber 41 is provided with a longitudinally penetrating third flow channel 45, wherein the third flow channel 45 is connected to the second flow channel 44. The side end of the live water chamber 41 is provided with an opening communicating with the third flow channel 45. A rubber piston diaphragm 47 is installed on the opening. An eccentric shaft 48 and a piston connecting rod 49 are sequentially connected to the movable shaft of the DC motor 42. One end of the piston connecting rod 49 is movably connected to the eccentric shaft 48, and the other end of the piston connecting rod 49 is connected to the rubber piston diaphragm. The piston rod 49 is connected to the linear motor 42. When the linear motor 42 rotates, it drives the eccentric shaft 48 to rotate, which in turn drives the piston rod 49 to reciprocate the rubber piston diaphragm 47, thus expanding or shrinking the volume of the flow channel 3 45. Both ends of the flow channel 3 45 are equipped with one-way valves 46. When the volume of the flow channel 3 45 is expanded, water flows into the flow channel 3 45 from the lower one-way valve 46, while the upper one-way valve 46 is closed, achieving a water suction effect. When the volume of the flow channel 3 45 is shrunk, water flows from the upper one-way valve 46 to the upper flow channel 1 41, while the lower one-way valve 46 is closed, achieving a water delivery effect.

[0023] The piston connecting rod 49 drives the rubber piston diaphragm 47, which, in conjunction with the telescopic deformation, completes the water intake and discharge functions. The gear transmission structure is eliminated, which effectively reduces the noise defects of mechanical friction. The structural parts are simplified, reducing the overall size of the piston water pump and making the water pump more widely used.

[0024] The top of the water chamber 41 is provided with a positioning groove 50, which is connected to the top of the flow channel 3 45. The structure of the positioning groove 50 is adapted to the bottom of the motor assembly 30, and the bottom of the motor assembly 30 can be embedded in the positioning groove 50. After the motor assembly 30 is embedded in the positioning groove 50, the flow channel 31 of the output shaft 341 is connected to the flow channel 45 of the water chamber 41. Finally, water is sprayed out through the nozzle water outlet 14 on the brush head assembly 10 to achieve the effect of rinsing the gums.

[0025] The water pump base 43 is connected to a suction pipe 51, which is connected to the flow channel 44. A filter screen 52 is provided at the bottom of the suction pipe 51. The suction pipe 51 is the input end of the water pump assembly 40 and extends to the bottom of the water storage tank 5, making it convenient to draw water from the bottom of the water storage tank 5. The filter screen 52 can filter impurities in the water flow, preventing too many impurities from entering the user's mouth and improving the user experience.

[0026] The outer casing assembly 100 includes a main casing 1 and a water tank cover 2 that are installed together. The main casing 1 is provided with a water inlet 3 that communicates with the water storage tank 5. The water inlet 3 is provided with a detachable water inlet cover 4. The mechanism also includes a battery 6 and a PCB board 7 installed on the mechanism mounting base 20. The battery 6 can supply power to the PCB board 7, the motor assembly 30 and the water pump assembly 40. The PCB board 7 is used to control the start and stop of the motor assembly 30 and the water pump assembly 40. The mechanism mounting base 20 is also provided with a wireless charging receiver coil 21 for charging the battery 6.

[0027] The brush head assembly 10 includes a nozzle handle 11 and a brush head plug 12. The brush head handle 11 is provided with a flow channel 4 13, and the top of the flow channel 4 13 is provided with a nozzle water outlet 14. The nozzle handle 11 is provided with bristles 15 corresponding to the position of the nozzle water outlet 14. The bristles 15 are used to brush away plaque. With the high-frequency vibration of the motor assembly 30, the brushing effect is improved. The brush head plug 12 is installed at the bottom of the flow channel 4 13. The brush head plug 12 is provided with a shaft hole 15, which can be detachably inserted into the upper end of the output shaft 341 of the motor assembly 30.

[0028] The second installation cavity is also equipped with a germicidal lamp plate 8, which is a UVC germicidal lamp plate, located between the DC motor 42 and the bottom wall of the water pump housing 43. The water pump housing 43 is transparent, and the light generated by the germicidal lamp plate 8 can be directly shone into the water storage tank 5. When there is water in the water storage tank 5, the germicidal lamp plate 8 can be turned on to sterilize the water inside the water storage tank 5. When the user uses the water pump assembly 40 to pump water and deliver it to the user's mouth, the sterilized water can prevent bacteria from entering the mouth from the water source, thus preventing diseases from entering through the mouth and greatly improving the user's disease prevention effect.

[0029] Furthermore, the water storage tank 5 can accommodate the brush head assembly 10. The main body shell 1 and the water tank cover 2 can be detached and installed through a snap-fit ​​structure. The brush head assembly 10 can be placed into the waterless water storage tank 5 by removing the water tank cover 2. After the water tank cover 2 is installed through the snap-fit ​​structure, the sterilization lamp plate 8 can be turned on to sterilize the brush head assembly 10 inside the water storage tank 5. When the user brushes their teeth, they directly contact the brush head assembly 10. The sterilized brush head assembly 10 can prevent bacteria from entering the mouth from the water source, thus preventing diseases from entering through the mouth and greatly improving the user's disease prevention effect.

[0030] In other embodiments, the brush head assembly 10 can be replaced with a nozzle structure that has fewer bristles than the brush head assembly 10. The nozzle structure, in conjunction with the water pump assembly 40, can spray high-pressure water to rinse the user's gums and clean the oral cavity by rinsing.

[0031] This technical solution achieves both automatic rinsing and brushing effects.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fully automatic electric toothbrush integrating a vibrating motor and a piston water pump, comprising a brush head assembly, a housing assembly, and a motor mechanism disposed within the housing assembly, characterized in that: The outer casing assembly contains a water storage tank. The core device includes a core mounting base, a motor assembly, and a water pump assembly. The motor assembly has a longitudinally penetrating flow channel. The input end of the water pump assembly is inserted into the water storage tank, and the output end of the water pump assembly is connected to the bottom end of the flow channel. The brush head assembly is detachably installed on the top of the outer casing assembly, and the brush head assembly is connected to the top of the flow channel.

2. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 1, characterized in that: The motor assembly includes a motor housing, a stator core, a rotor structure, and a motor rear cover. The motor housing and the motor rear cover are assembled together, forming an installation cavity. The stator core and rotor assembly are installed in the installation cavity. Two nylon wire frames are also provided in the installation cavity, and the two nylon wire frames abut against both ends of the stator core. The stator core has stacked wire core branches, and each wire core branch is wound with an enameled coil. The rotor structure is located between two wire core branches.

3. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 2, characterized in that: The rotor structure includes an output shaft, a rotor core, and four permanent magnets. A flow channel is provided on the output shaft, and the output shaft is sleeved inside the rotor core. The rotor core is provided with four evenly arranged mounting supports, and mounting slots are formed between any two adjacent mounting supports. The four permanent magnets are respectively installed into the four mounting slots.

4. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 3, characterized in that: The two ends of the output shaft pass through the top of the motor housing and the bottom of the motor rear cover, respectively, and the two ends of the output shaft are rotatably connected to the motor housing and the motor rear cover, respectively.

5. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 1, characterized in that: The water pump assembly includes a live water chamber, a DC motor, and a pump base. The pump base has a second flow channel and a second mounting cavity. The DC motor is installed in the second mounting cavity. The live water chamber has a longitudinally penetrating flow channel three, with one-way valves at both ends of the flow channel three. The flow channel three is connected to the second flow channel. The side end of the live water chamber has an opening communicating with the third flow channel. A rubber piston diaphragm is installed on the opening. An eccentric shaft and a piston rod are sequentially connected to the movable shaft of the DC motor. One end of the piston rod is movably connected to the eccentric shaft, and the other end of the piston rod is connected to the rubber piston diaphragm. The pump base is connected to a suction pipe, which is connected to the second flow channel. A filter screen is provided at the bottom of the suction pipe.

6. A fully automatic electric toothbrush integrating a vibration-damping motor and a piston water pump according to claim 5, characterized in that: The top of the live water tank is provided with a positioning groove, which is connected to the top of the flow channel three. The structure of the positioning groove is adapted to the bottom of the motor assembly, and the bottom of the motor assembly can be embedded in the positioning groove. After the motor assembly is embedded in the positioning groove, the flow channel one and the flow channel three are connected.

7. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 5, characterized in that: The second mounting cavity is also equipped with a germicidal lamp plate, which is located between the DC motor and the bottom wall of the water pump housing. The water pump housing is transparent, and the light generated by the germicidal lamp plate can shine directly into the water storage tank, which can accommodate the brush head assembly.

8. The fully automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 1, characterized in that: The mechanism also includes a battery and a PCB board mounted on the mechanism mounting base. The battery can power the PCB board, motor assembly and water pump assembly. The PCB board is used to control the start and stop of the motor assembly and water pump assembly. The mechanism mounting base is also provided with a wireless charging receiver for charging the battery.

9. The fully automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 1, characterized in that: The brush head assembly includes a nozzle handle and a brush head plug. The nozzle handle has a flow channel four, and the top of the flow channel four has a nozzle water outlet hole. The nozzle handle has bristles corresponding to the position of the nozzle water outlet hole. The brush head plug is installed at the bottom of the flow channel four and has a shaft hole on the brush head plug, which can be detachably inserted into the motor assembly.

10. The full automatic electric toothbrush integrated with the shockproof motor and the piston water pump according to claim 1, characterized in that: The outer casing assembly includes a main outer casing and a water tank cover that are fitted together. The main outer casing and the water tank cover are detachably installed via a snap-fit ​​structure. The main outer casing is provided with a water inlet that communicates with the water storage tank, and the water inlet is provided with a detachable water inlet cover.

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