Abstract: Provided is a connecting structure for connecting a head assembly and a handle portion of a vibration cleaning appliance, the handle portion includes a handle housing with a hollow portion and a vibration shaft, the head assembly includes a brush handle housing with a handle interface, a blind hole is provided in the middle of the interface, the rear end of the shaft is tightly inserted into the hole; a buckle cavity is provided on the interface, the front end surface of the cavity is a buckle locking surface of the interface; a buckle combination part including a cantilever and a protrusion is provided in the housing along its rear end, the cantilever is formed in and separated from the housing, the rear end of the cantilever is provided with the protrusion, a locking surface of the combination part is provided on the protrusion accommodated by the cavity of the interface.

Abstract: A toothbrush includes a brush head linkage (100), a connecting mechanism (200) and a toothbrush handle (300); the connecting mechanism (200) includes a first connector (210), a second connector (220) and an elastic structural element (230) connected to the second connector (220); the first connector (100) is rotatably connected to the second connector (220), and the axis of rotation extends in a front-rear direction; and the elastic structural element (230) includes at least one return torsion spring (231), the return torsion spring (231) includes a helix spring (2311) in the form of a cylinder with an opening of the cylinder oriented in a direction parallel to an extension direction of an oscillating reference line, the helix spring is in stop fit with the second connector (220) in a direction perpendicular to the oscillating reference line, and the return torsion spring further includes a first torsion bar (2311) and a second torsion bar (2312) respectively connected to a front end and a rear end of the hel

Abstract: A toothbrush, including a head, a handle, and a first rotating structure, and the head has a rotation axis (C1) extending in a length direction; the first rotating structure includes a rotating member connected to the head and a connecting member connected to the handle, the surface of the connecting member facing the head (20) is provided with an insertion groove extending along the rotation axis (C1), and the end of the rotating member facing away from the head is inserted into the insertion groove and is rotatably connected to the connecting member; the rotating member is provided with a first snap-fit member, and the connecting member is provided with a second snap-fit member; and when there are first snap-fit members and/or second snap-fit members, any one of the first snap-fit members can pass over each second snap-fit member in sequence while rotating along with the rotating member.

Abstract: A toothbrush including a handle; a head; a connection structure including a first rotating disc and a second rotating disc that coaxially rotate, the first rotating disc being connected to the head/handle and the second rotating disc being connected to the handle/head, and a rotation axis of the first rotating disc and the second rotating disc being perpendicular to an extension direction of the handle; and an elastic structure including a first elastic member and a second elastic member, two ends of each of the first elastic member and the second elastic member being respectively connected to or abutting against the first rotating disc and the second rotating disc, and when the first rotating disc rotates with respect to the second rotating disc under the action of an external force, the first elastic member and/or the second elastic member elastically deforming.

Abstract: A support structure, which supports a drive shaft performing reciprocating motion. The support structure comprises an inner fixing ring of the support structure, at least one elastic member of the support structure, and an outer fixing ring of the support structure; the inner fixing ring is fastened on the drive shaft; the outer fixing ring is fastened on an inner wall of a lower device housing; the elastic member is provided between the outer fixing ring and the inner fixing ring; and on the cross section of the elastic member perpendicular to the radial direction of the drive shaft, the width (b1) in the direction perpendicular to a drive force is three times larger than the thickness (t1) in the direction parallel to the drive force. The support structure has the advantages of low noise, low energy loss, low cost, simple structure, and being suitable for batch production.

Abstract: A photosensitive pressure alarm device for electric cleaning care appliances comprises at least one light source, at least one photosensitive unit, a light reflecting surface, a detection circuit, and an alarm portion. The light source and the photosensitive unit are provided on a movable component or a movable component on a same side, and the light reflecting surface is provided on a stationary component or the movable component. Under the combined action of an external force (F1) and an elastic force (F2), the light reflecting surface or the light source and the photosensitive unit provided on the movable component can move with the movable component, and the incident angle and the reflection angle of the light on the light reflecting surface change, causing that the light receiving area of the photosensitive unit changes, and in turn resulting in change of the electrical performance of the photosensitive unit.

Abstract: Disclosed are an acoustic wave type electric cleaning and care tool and a pressure warning device for same. Upper and lower drive shaft bearings are fixed on a drive shaft. The upper bearing is fixed in left and right brackets by a fixed surface and is stationary. The lower bearing is fixed in the brackets by a upper fixed surface and perform a relative movement such that the lower bearing is separated from or contact with the upper fixed surface. The alarm device comprises a lever, a light-emitting element and a photosensitive element. The lever is provided with a shielding surface and/or a light-shielding protrusion. Light energy is changed by the change of gap between the shielding surface and/or the light-shielding protrusion and the photosensitive element. The change in electrical performance parameters of the photosensitive element is detected to acquire a load pressure on a cleaning element and realize pressure alarm.

Abstract: Provided is a connecting structure for connecting a head assembly and a handle portion of a vibration cleaning appliance, the handle portion includes a handle housing with a hollow portion and a vibration shaft, the head assembly includes a brush handle housing with a handle interface, a blind hole is provided in the middle of the interface, the rear end of the shaft is tightly inserted into the hole; a buckle cavity is provided on the interface, the front end surface of the cavity is a buckle locking surface of the interface; a buckle combination part including a cantilever and a protrusion is provided in the housing along its rear end, the cantilever is formed in and separated from the housing, the rear end of the cantilever is provided with the protrusion, a locking surface of the combination part is provided on the protrusion accommodated by the cavity of the interface.

Abstract: The invention relates an electrical cleaning and care appliance, pressure alarming method and apparatus for the appliance. Transducer elastic members of the appliance engage in resonance oscillation motion with bending strain characteristics, are symmetrically distributed on the left and right sides of the longitudinal axis (L2) of a drive shaft, and have approximately equal section moduli in bending, approximately equal lengths, approximately equal deflection amplitudes and opposite flexure directions; the angle between the longitudinal axis (L1) of a cleaning element and the normal direction of the transducer elastic member plane is 0° to 60°; the frequency of the alternating current in a drive coil is a fixed value equal to f0max?n, where n is a fixed value in the range of ?0.3(f0max?f0min) to 0.85(f0max?f0min). Therefore, the appliance has a higher mechanical efficiency, a simple structure and a lower cost.

Abstract: A photosensitive pressure alarm device for electric cleaning care appliances comprises at least one light source, at least one photosensitive unit, a light reflecting surface, a detection circuit, and an alarm portion. The light source and the photosensitive unit are provided on a movable component or a movable component on a same side, and the light reflecting surface is provided on a stationary component or the movable component. Under the combined action of an external force (F1) and an elastic force (F2), the light reflecting surface or the light source and the photosensitive unit provided on the movable component can move with the movable component, and the incident angle and the reflection angle of the light on the light reflecting surface change, causing that the light receiving area of the photosensitive unit changes, and in turn resulting in change of the electrical performance of the photosensitive unit.

Abstract: Provided is a cleaning device for personal cleaning and care, comprising a cleaning device housing detachably connected to a handle housing, a bracket for supporting the cleaning device, a cleaning element carrier and cleaning elements distributed on the cleaning element carrier, a passive assembly, and a cleaning device transducer.

Abstract: A device with controllable switch terminal voltage, comprising: a switch signal unit for outputting a corresponding switch signal according to the state of a switch, wherein the switch is coupled between the switch signal unit and an output of a power supply; a biasing unit coupled to the switch signal unit for outputting a bias voltage to the switch signal unit; wherein when the switch is open and a conductive liquid and/or the stream of conductive liquid exists inside the switch, the biasing unit cooperates with the switch signal unit so as to control the terminal voltage of the switch and the current flowing through the switch. The disclosed switch design allows the switch terminal voltage to be less than 1V when the switch is opened, which greatly depresses the electrochemical reaction of the switch, thus prolonging the switch life, and avoiding the possibility of hydrogen explosion.

Abstract: The invention relates to a fixing structure for use in a driver apparatus of an electric cleaning appliance. The driver apparatus comprises a transducer assembly and a drive coil assembly within a handle housing. The transducer assembly comprises a transducer, a transducer frame and a transducer assembly fixing member. The drive coil assembly comprises a drive coil, a drive coil frame and a drive coil assembly fixing member. The transducer frame and the drive coil frame respectively comprise left and right frames disposed separate from each other. The handle housing is respectively fastened with the transducer assembly or the drive coil assembly via a first or second structural feature part in a way that one cannot move relative to the other. The transducer assembly and the drive coil assembly are connected via a third structural feature part in a way that one can move relative to the other.

Abstract: A head module capable of reciprocal rotation for an electric cleaning apparatus comprises cleaning elements, a housing and a driven rod disposed in a hollow inner cavity of the housing, wherein the rod is provided with a hollow cavity body for accommodating a drive shaft; at least one gap is provided in a region surrounding the hollow cavity body; at least one inner side notch is distributed on a side wall of the inner cavity, for accommodating a protrusion; the rod further comprises a partially cylindrical or conical cavity body region. When the drive shaft is not yet inserted into the rod, there is a gap between the notch and the protrusion in a direction perpendicular to the rotation axis (L1) of the drive shaft. The length of the gap is greater than or equal to the amount of single-side interference between the rod and the drive shaft.

Abstract: A cleaning care appliance comprises a transducer comprising a drive shaft and magnets arranged on the left and right sides of the longitudinal axis of the drive shaft. The magnets are independent of each other, the polarity of the magnetic pole of one side of the magnet is opposite to that of the other side in the direction facing driving coil, the angle between the direction of magnetic force lines inside the magnets and the direction of the longitudinal axis of driving coil iron core is greater than 45° and smaller than 135°, the magnets move with respect to the elastic element retainer. When alternating current flows through the drive coil, the angle between magnet movement direction and the longitudinal axis of the core is greater than 170° and smaller than 190°. The appliance has low cost, low noise, low damping, and is safe, and reliable.

Abstract: The invention relates an electrical cleaning and care appliance, pressure alarming method and apparatus for the appliance. Transducer elastic members of the appliance engage in resonance oscillation motion with bending strain characteristics, are symmetrically distributed on the left and right sides of the longitudinal axis (L2) of a drive shaft, and have approximately equal section moduli in bending, approximately equal lengths, approximately equal deflection amplitudes and opposite flexure directions; the angle between the longitudinal axis (L1) of a cleaning element and the normal direction of the transducer elastic member plane is 0° to 60°; the frequency of the alternating current in a drive coil is a fixed value equal to f0max?n, where n is a fixed value in the range of ?0.3(f0max?f0min) to 0.8(f0max?f0min). Therefore, the appliance has a higher mechanical efficiency, a simple structure and a lower cost.

Abstract: An adjustable circuit for a personal electric cleaning care appliance comprises comprising a power supply portion and a driver is disclosed. The driver comprises a transducer, a drive coil and an iron core of the drive coil, and a drive shaft of the transducer is equipped with cleaning elements. The adjustable circuit comprises a microchip processor and an H-bridge drive circuit. By connecting a capacitor bank and the drive coil in series at load ends of the H-bridge drive circuit, at least a part of the capacitors of the capacitor bank is controllably connected in series with the drive coil or disconnected from the drive coil, the capacitance of the connected capacitor can be controlled so that the current flowing through the drive coil is controllably limited to a certain value, thereby, the motion amplitude of the cleaning elements can be controlled, and no additional electromagnetic interference will occur.

Abstract: The invention relates to a fixing structure for use in a driver apparatus of an electric cleaning appliance. The driver apparatus comprises a transducer assembly and a drive coil assembly within a handle housing. The transducer assembly comprises a transducer, a transducer frame and a transducer assembly fixing member. The drive coil assembly comprises a drive coil, a drive coil frame and a drive coil assembly fixing member. The transducer frame and the drive coil frame respectively comprise left and right frames disposed separate from each other. The handle housing is respectively fastened with the transducer assembly or the drive coil assembly via a first or second structural feature part in a way that one cannot move relative to the other. The transducer assembly and the drive coil assembly are connected via a third structural feature part in a way that one can move relative to the other.

Abstract: An adjustable circuit for a personal electric cleaning care appliance comprises comprising a power supply portion and a driver is disclosed. The driver comprises a transducer, a drive coil and an iron core of the drive coil, and a drive shaft of the transducer is equipped with cleaning elements. The adjustable circuit comprises a microchip processor and an H-bridge drive circuit. By connecting a capacitor bank and the drive coil in series at load ends of the H-bridge drive circuit, at least a part of the capacitors of the capacitor bank is controllably connected in series with the drive coil or disconnected from the drive coil, the capacitance of the connected capacitor can be controlled so that the current flowing through the drive coil is controllably limited to a certain value, thereby, the motion amplitude of the cleaning elements can be controlled, and no additional electromagnetic interference will occur.

Abstract: A brush head for performing reciprocating rotation comprises a driving wheel and a housing on which a top hole and/or a central through hole are/is distributed in a centering manner. The center line(s) of the holes and a rotation axis (L1) of a driving shaft are located at a same line, and the driving shaft penetrates through the central through hole. The fitted region of the driving shaft and the driving wheel enters the through holes distributed on the driving wheel to link the driving shaft and the driving wheel fixedly. A driven part matching a driving part is distributed on a protrusion of the brush disc on which a hollow region is formed. The driving shaft penetrates through or enters the hollow region and limits the brush disc to move. The brush disc is incapable of performing reciprocating rotation when the driving shaft is not installed or is damaged.