NZ801372B2 - Electric shaver - Google Patents

Abstract

The present disclosure provides an electric shaver, including a handle (100), and a driving device (200) and a hair cutting unit (300); the driving device includes a motor housing (210), and a base (224), a mover component (221), a stator component (222), a first elastic support (223), and a second elastic support (230) that are disposed in the motor housing; the stator component is fixedly arranged on the base; an end of the first elastic support is fixedly connected to the base, and the other end is fixedly connected to the mover component; the base is connected to the motor housing through the second elastic support; the second elastic support is configured to absorb a vibration transmitted from the base to the motor housing; the first elastic support is configured to provide an elastic return force to the mover component; the stator component drives the mover component to move reciprocally in a predetermined direction; the mover component is connected to the hair cutting unit; the handle includes a bracket body (110) and a vibration damping device (120); the vibration damping oscillator oscillates reciprocally in the predetermined direction, an oscillation direction of the vibration damping oscillator is opposite to a reciprocal motion direction of the mover component, so as to absorb an angular vibration of the handle triggered by the driving device.

Claims (12)

What is claimed is:

1. An electric shaver, characterized by comprising a handle, and a driving device and a hair cutting unit disposed at a top of the handle; characterized in that the driving device comprises a motor housing, and a base, a mover component, a stator component, a first elastic support, and a second elastic support that are disposed in the motor housing; the stator component is fixedly arranged on the base; an end of the first elastic support is fixedly connected to the base, and the other end of the first elastic support is fixedly connected to the mover component, such that the mover component is spaced apart from the stator component; the base is connected to the motor housing through the second elastic support; the second elastic support is configured to absorb a vibration transmitted from the base to the motor housing; the first elastic support is configured to provide an elastic return force to the mover component, such that the stator component is capable of driving the mover component to move reciprocally in a predetermined direction by electromagnetic action; the mover component is connected to the hair cutting unit to drive the hair cutting unit to cut hair; the handle comprises a bracket body and a vibration damping device, and the motor housing is fixedly connected to a top of the bracket body; the vibration damping device comprises a vibration damping oscillator and a cushioning mechanism, and the vibration damping oscillator is elastically connected to the bracket body through the cushioning mechanism, the vibration damping oscillator oscillates reciprocally in the predetermined direction, an oscillation direction of the vibration damping oscillator is opposite to a reciprocal motion direction of the mover component, so as to absorb an angular vibration of the handle triggered by the driving device.

2. The electric shaver according to claim 1, wherein the bracket body is in a shape of an elongated strip extending up and down, and the vibration damping device is arranged at an end of the bracket body away from the driving device.

3. The electric shaver according to claim 2, further comprising a battery embedded in the bracket body and disposed between the vibration damping device and the driving device.

4. The electric shaver according to any one of claims 1-3, wherein the bracket body defines a space, and the cushioning mechanism comprises two buffer members; each end of the vibration damping oscillator in the predetermined direction is fixedly connected to the bracket body through a corresponding buffer member.

5. The electric shaver according to claim 4, wherein each buffer member comprises at least one plate spring structure extending in the form of a disc; a central connection end of the plate spring structure is fixedly connected to an end of the vibration damping oscillator in the predetermined direction, and an external connection end of the plate spring structure is fixedly connected to the bracket body.

6. The electric shaver according to claim 5, wherein the vibration damping device comprises a connection block fixedly connected to the bracket body; the external connection ends of the two buffer members are fixedly connected to two ends of the connection block, respectively, and the connection block is spaced apart from the vibration damping oscillator.

7. The electric shaver according to claim 6, wherein the vibration damping oscillator comprises a counterweight block and a central shaft; the central shaft is threaded and limited around an axis of the central shaft to be arranged at the counterweight block, and two ends of the central shaft are fixedly connected to the two central connection ends, respectively.

8. The electric shaver according to claim 7, wherein the central connection end is arranged with a positioning jack, and the central shaft is inserted in the positioning jack; the vibration damping device further comprises a first connector, and the first connector penetrates the positioning jack and an end of the central shaft to be fixedly connected to the central connection end and the central shaft.

9. The electric shaver according to claim 8, wherein the two ends of the central shaft protrude from the counterweight block, and the vibration damping device further comprises a first spacer and a second spacer disposed on both sides of the plate spring structure, respectively; the first spacer is sleeved on an outer periphery of the central shaft and sandwiched between the central connection end and the counterweight block; the second spacer is sandwiched between the first connector and the central connection end; the bracket body defines a position avoidance hole facing the first connector, and an inner wall surface of the position avoidance hole is disposed at a periphery of an outer peripheral wall of the second spacer.

10. The electric shaver according to claim 6, wherein each of opposite side wall surfaces of the connection block extending along the predetermined direction are recessed to define a limiting slot; a top wall of the space is arranged with two limiting protrusions that are opposite to each other and spaced apart; the two limiting protrusions are correspondingly embedded in the two limiting slots to limit a movement of the connection block relative to the bracket body in the predetermined direction; the electric shaver further comprises a second connector penetrating a corresponding limiting protrusion and is fixedly connected to the bracket body and the connection block.

11. The electric shaver according to any one of claims 1-3, wherein a difference between an inherent frequency of the vibration damping device and an inherent frequency of the driving device is greater than or equal to -5 HZ and less than or equal to 5 HZ; and/or, a mass of the vibration damping oscillator is positively correlated with a mass of the mover component.

12. The electric shaver according to claim 1, further comprising a housing; wherein the housing comprises a shank and a head connected to a top of the shank, the driving device is fixedly arranged in the head, and the handle is arranged in the shank; the bracket body defines a recess adjacent to an upper part of the counterweight block, a sealing ring is embedded in the recess, and the bracket body is connected to an inner wall surface of the housing through the sealing ring; an outer wall surface of the vibration damping oscillator is spaced from the inner wall surface of the housing. D r a w i n g s 1 / 1 2 F I G . 1 2 / 1 2 F I G . 2 3 / 1 2 F I G . 3 4 / 1 2 F I G . 4 5 / 1 2 F I G . 5 6 / 1 2 F I G . 6 7 / 1 2 F I G . 7 8 / 1 2 F I G . 8 9 / 1 2 F I G . 9 1 0 / 1 2 F I G . 1 0 1 1 / 1 2 F I G . 1 1 1 2 / 1 2 F I G . 1 2