CN219152955U

CN219152955U - Electric shaver

Info

Publication number: CN219152955U
Application number: CN202223478189.4U
Authority: CN
Inventors: 叶洪新
Original assignee: Shenzhen Shuye Innovation Technology Co ltd
Current assignee: Shenzhen Shuye Innovation Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-09
Anticipated expiration: 2032-12-26

Abstract

The embodiment of the application discloses an electric shaver, wherein the electric shaver comprises a driving device, a hair cutting unit and a handle, the driving device comprises a motor shell, a base arranged in the motor shell, a rotor assembly, a stator assembly, an elastic suspension assembly and an elastic support piece, the stator assembly is arranged on the base, one end of the elastic suspension assembly is fixedly connected with the base, and the other end of the elastic suspension assembly is fixedly connected with the rotor assembly; the base is connected with the motor shell in a hanging way through an elastic supporting piece; the stator assembly drives the rotor assembly to reciprocate along a preset direction, and the rotor assembly is connected with the hair cutting unit; the handle comprises a bracket main body and a vibration damper, and the motor casing is fixedly connected to the top of the bracket main body; the vibration damper comprises a vibration damper and a buffer mechanism, wherein the vibration damper is fixedly connected with the bracket main body in a suspension manner through the buffer mechanism so as to absorb angular vibration of the handle caused by the driving device. The electric shaver can effectively damp the machine body, so that the use shock feeling of the electric shaver can be greatly weakened.

Description

Electric shaver

Technical Field

The application relates to the technical field of electric shavers, in particular to an electric shaver.

Background

The electric shaver comprises a driving device and a hair cutting unit, wherein the driving device drives the movable knife of the hair cutting unit to reciprocate relative to the static knife or the two movable knives to cut the beard and temples. The electric shaver has the problems of large vibration amplitude of the shaver body, strong vibration sense and poor use sense of users.

The foregoing is merely provided to facilitate an understanding of the principles of the utility model and is not admitted to be prior art.

Disclosure of Invention

In view of the above problems, the present utility model provides an electric shaver, which aims to solve the technical problem of strong vibration sense of a body of the electric shaver.

To achieve the above object, the present utility model provides an electric shaver comprising a handle, a driving device provided at the top end of the handle, and a hair cutting unit, wherein,

the driving device comprises a motor shell, a base, a rotor assembly, a stator assembly, an elastic suspension assembly and an elastic supporting piece, wherein the base, the rotor assembly, the stator assembly, the elastic suspension assembly and the elastic supporting piece are arranged in the motor shell, the stator assembly is fixedly arranged on the base, one end of the elastic suspension assembly is fixedly connected with the base, and the other end of the elastic suspension assembly is fixedly connected with the rotor assembly, so that the rotor assembly and the stator assembly are arranged at intervals; the base is connected to the motor shell in a hanging way through the elastic supporting piece; the stator assembly drives the rotor assembly to reciprocate along a preset direction under the electromagnetic action; the rotor component is connected with the hair cutting unit so as to drive the hair cutting unit to cut hair;

the handle comprises a bracket main body and a vibration damper, and the motor casing is fixedly connected to the top of the bracket main body; the vibration damper comprises a vibration damper body and a buffer mechanism, wherein the vibration damper body is fixedly connected to the support body in a suspension mode through the buffer mechanism so as to absorb vibration of the handle in the preset direction.

In an embodiment, the bracket body is in an elongated shape extending up and down, and the vibration damping device is disposed at one end of the bracket body away from the driving device.

In an embodiment, the electric shaver further comprises a battery embedded in the stand body and located between the vibration damping device and the driving device.

In an embodiment, a suspension space is formed in the support body, the buffer mechanism includes two buffer members, and two ends of the vibration damping vibrator in the preset direction are fixedly connected to the support body through one buffer member respectively so as to be suspended in the suspension space.

In an embodiment, the buffer member includes at least one plate spring structure extending in a disc shape, a center connection end of the plate spring structure is fixedly connected with an end portion of the vibration damping vibrator in the preset direction, and an outer connection end of the plate spring structure is fixedly connected with the bracket main body.

In one embodiment, the vibration damping device further comprises a connection block fixedly connected to the bracket main body; the external connection ends of the two buffering pieces are respectively and fixedly connected to the two ends of the connecting block, and the connecting block and the vibration reduction vibrator are arranged at intervals.

In an embodiment, the vibration damping vibrator comprises a balancing weight and a central shaft, the central shaft penetrates through and is mounted on the balancing weight in a limiting mode around the axis of the central shaft, and two ends of the central shaft are fixedly connected with the two central connecting ends respectively.

In an embodiment, the central connecting end is provided with a positioning jack, and the central shaft is adaptively inserted into the positioning jack; the vibration damper further comprises a first connecting piece, wherein the first connecting piece penetrates through the positioning jack and the end part of the central shaft to fixedly connect the central connecting end with the central shaft.

In an embodiment, two ends of the central shaft extend out of the balancing weight, the vibration damper further comprises a first gasket and a second gasket which are respectively arranged at two sides of the plate spring structure, the first gasket is sleeved on the periphery of the central shaft and is clamped between the central connecting end and the balancing weight; the second gasket is clamped between the first connecting piece and the central connecting end; the support main body corresponds the first connecting piece and has seted up the position hole that keeps away, the internal face in position hole is located the periphery of the periphery wall of second gasket.

In an embodiment, two opposite side wall surfaces of the connecting block extending along the preset direction are concave to form a limit groove; the top wall of the suspension space is provided with two opposite spacing protrusions which are arranged at intervals; the two limiting protrusions are correspondingly embedded in the two limiting grooves so as to limit the movement of the connecting block relative to the bracket main body in the preset direction; the electric shaver further comprises a second connecting piece, and the second connecting piece penetrates through the limiting protrusion and is fixedly connected with the bracket main body and the connecting block.

In one embodiment, the difference between the natural frequency of the vibration damping device and the natural frequency of the driving device is greater than or equal to-5 HZ and less than or equal to 5HZ; and/or the mass of the vibration damping vibrator is positively correlated with the mass of the rotor assembly.

In one embodiment, the electric shaver further comprises a housing, the housing comprises a handle and a head connected to the top end of the handle, the driving device is fixedly installed in the head, and the handle is installed in the handle; a groove is formed in the position, adjacent to the upper part of the balancing weight, of the bracket main body, a sealing ring is embedded in the groove, and the bracket main body is abutted to the inner wall surface of the shell through the sealing ring; the outer wall surface of the vibration damping vibrator and the inner wall surface of the shell are arranged at intervals.

According to the electric shaver, the stator assembly is fixedly arranged on the base, one end of the elastic suspension assembly is fixedly connected with the base, and the other end of the elastic suspension assembly is fixedly connected with the rotor assembly, so that the rotor assembly and the stator assembly are arranged at intervals; the base is connected to the motor casing in a hanging manner through the elastic supporting piece. Therefore, the rotor assembly is connected to the base through the elastic suspension assembly, the base is connected with the motor casing through the elastic support piece, the weight of the stator assembly on the base is fully utilized to realize buffering and damping, the swing amplitude of the elastic support piece relative to the motor casing is smaller, and the vibration amplitude transmitted to the motor casing is smaller.

Simultaneously, the handle comprises a bracket main body and a vibration damper, and the motor casing is fixedly connected to the top of the bracket main body; the vibration damper comprises a vibration damper body and a buffer mechanism, wherein the vibration damper body is fixedly connected to the support body in a suspension mode through the buffer mechanism so as to absorb angular vibration of the handle caused by the driving device. Therefore, the vibration damper is arranged on the support main body of the handle, the vibration damper is fixedly connected to the support main body in a suspended mode through the buffer mechanism, the vibration damper is used for absorbing the angular vibration of the handle, and the vibration transmitted to the handle by the driving device is further reduced. Therefore, the driving device of the electric shaver realizes primary vibration absorption through the elastic support piece, and the handle realizes secondary vibration absorption through the vibration absorption device, so that the vibration of the whole handle can be effectively weakened, and the using hand feel of the electric shaver is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the structure of an embodiment of an electric shaver according to the present utility model;

fig. 2 is a schematic view of the electric shaver of fig. 1 with the housing removed;

FIG. 3 is a cross-sectional view of the drive device of FIG. 2 taken at an angle;

FIG. 4 is a schematic view of the handle and battery assembly of FIG. 2;

FIG. 5 is a cross-sectional view of the structure of FIG. 4 at an angle;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is another angular cross-sectional view of the structure of FIG. 4;

FIG. 8 is a partial enlarged view at B in FIG. 7;

FIG. 9 is a schematic view of an embodiment of a vibration damping device according to the present utility model;

FIG. 10 is a schematic view of the vibration damping device of FIG. 7 at another angle;

FIG. 11 is an exploded view of the vibration damping device of FIG. 8;

fig. 12 is a schematic structural view of an embodiment of a stent body according to the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Handle	127	Center connection end	222	Stator assembly
110	Bracket main body	128	Positioning jack	223	Elastic suspension assembly
						111	Suspension space	129	External connection terminal	224	Base seat
112	Spacing bump	130	Fastening piece	230	Elastic support
						113	Avoidance hole	131	Connecting block	300	Hair cutting unit
114	Groove	132	Limiting groove	400	Battery cell
						120	Vibration damper	133	First connecting piece	500	Second connecting piece
121	Vibration damping vibrator	134	First gasket	600	Shell body
						122	Balancing weight	135	Second gasket	610	Handle portion
123	Center shaft	200	Driving device	620	Head part
						124	Buffer mechanism	210	Motor casing	700	Sealing ring
125	Buffer member	220	Motor unit
						126	Plate spring structure	221	Mover assembly

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The utility model provides an electric shaver.

In an embodiment of the present utility model, referring to fig. 1 to 4, the electric shaver includes a handle 100, a driving device 200 disposed at the top end of the handle 100, and a hair cutting unit 300. The driving device 200 includes a motor housing 210, an elastic support 230, and a motor unit 220 disposed in the motor housing 210, where the motor unit 220 includes a base 224, a mover assembly 221, a stator assembly 222, and an elastic suspension assembly 223. The stator assembly 222 is fixedly mounted to the base 224, and the motor unit 220 is suspended within the motor housing 210 by the elastic support 230. One end of the elastic suspension assembly 223 is fixedly connected to the base 224, and the other end is fixedly connected to the mover assembly 221, so that the mover assembly 221 and the stator assembly 222 are arranged at intervals; the base 224 is suspended from the motor housing 210 by an elastic support 230; the stator assembly 222 drives the mover assembly 221 to reciprocate in a preset direction through electromagnetic action; the mover assembly 221 is connected to the hair cutting unit 300 to drive the hair cutting unit 300 to cut hair;

the handle 100 includes a bracket body 110 and a vibration damping device 120, and a motor case 210 is fixedly coupled to the top of the bracket body 110; the vibration damping device 120 includes a vibration damping vibrator 121 and a buffer mechanism 124, and the vibration damping vibrator 121 is suspended and fixedly connected to the bracket main body 110 through the buffer mechanism 124 to absorb angular vibration of the handle 100 induced by the driving device 200.

In this embodiment, it can be understood that the electric shaver may further include a housing 600, the housing 600 includes a handle 610 and a head 620 connected to the top end of the handle 610, the driving device 200 is disposed in the head 620, and the motor housing 210 and the housing 600 may be fixedly connected by means of screws or the like; the handle 100 is mounted within the shank 610. The user uses the electric shaver by holding the handle 610 of the housing 600. The overall shape of the handle 100 may be varied, for example, the handle 100 may have a long strip structure, a block structure, a cylindrical structure, or the like. The structure and form of the elastic supporting member 230 and the elastic suspension member 223 may be many, for example, the elastic supporting member 230 and the elastic suspension member 223 may be a metal spring plate structure, or may be a rubber or plastic structure with a certain supporting strength and elastic restoring force, and the motor casing 210 provides support and installation for the base 224, the stator assembly 222, the mover assembly 221, and other structures. Typically, to ensure support and rebound smoothness, the resilient supports 230 and resilient suspension are provided in two groups. That is, both ends of the mover assembly 221 in a predetermined direction are fixedly connected to the base 224 through a set of elastic suspension assemblies 223, respectively; the two ends of the base 224 in the preset direction are fixedly connected to the motor casing 210 through a set of elastic supporting members 230, respectively.

The structure of the hair cutting unit 300 may be many, for example, a long hair cutter, a short hair cutter, a long hair and short hair mixed cutter, etc., and the hair cutting unit 300 of different structures and forms may be selected and designed according to practical requirements. The mover assembly 221 may specifically include a permanent magnet and a magnet mount, the permanent magnet being fixed to the magnet mount, and both ends of the magnet mount being connected to the bracket through a set of elastic suspension assemblies 223, respectively. The stator assembly 222 specifically includes a core, a bobbin, and a coil wound around the bobbin and mounted on the core through the bobbin. The iron core may be a U-shaped iron core, an E-shaped iron core, or the like, and different types of iron cores may be selected according to actual needs, which is not particularly limited herein.

After the coils of the stator assembly 222 are electrified and the current is alternately in opposite directions, the stator assembly 222 forms an electromagnet, and the stator assembly 222 drives the rotor assembly 221 to reciprocate along a preset direction through the magnetic induction action of the electromagnet and the permanent magnet and the elastic restoring action of the two elastic suspension assemblies 223. The hair cutting unit 300 is mounted on the magnet mount of the mover assembly 221, and the reciprocating magnetic levitation linear motor can drive the movable blade of the electric cutting device to perform a rapid reciprocating movement.

The stator assembly 222 may be provided in only one group, and the mover assembly 221 may be provided in only one group or in two groups. When the reciprocating magnetic levitation linear motor has only one mover assembly 221, the hair cutting unit 300 may be made to include one movable cutter and one stationary cutter, such that the movable cutter is connected with the mover assembly 221 of the reciprocating magnetic levitation linear motor, and the movable cutter is driven to reciprocate relative to the stationary cutter by the reciprocating magnetic levitation linear motor, so as to achieve cutting.

When the stator assemblies 222 are arranged in one group and the rotor assemblies 221 are arranged in two groups, the corresponding magnetic poles of the permanent magnets of the two groups of rotor assemblies 221 are opposite. Thus, the one set of stator assemblies 222 can simultaneously drive the two sets of sub-assemblies 221 to reciprocate in opposite directions. Of course, the stator assemblies 222 may be arranged in two or more groups, when the stator assemblies 222 are arranged in two groups, the rotor assemblies 221 are also arranged in two groups, and each group of rotor assemblies 221 is arranged above the stator assemblies 222, so that the corresponding stator assemblies 222 are respectively driven to reciprocate in opposite directions by the two groups of stator assemblies 222. The specific number of stator assemblies 222 and mover assemblies 221 is not limited herein and may be selected and designed according to the specific type of reciprocating magnetic levitation linear motor. When the reciprocating magnetic levitation linear motor has two mover assemblies 221, the hair cutting unit 300 includes two moving cutter heads, which are respectively connected with the two mover assemblies 221, the reciprocating magnetic levitation linear motor drives the two moving cutter heads to respectively reciprocate in opposite directions, so as to realize cutting.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed. The electric shaver is used herein with the side on which the hair cutting element 300 is provided being up and the tail end of the handle 100 being down.

Both ends of the mover assembly 221 are respectively connected to the base 224 through a set of elastic suspension assemblies 223, and the mover assembly 221 is spaced apart from the stator assembly 222 by the elastic suspension assemblies 223. In some embodiments, the mover assembly 221 may be suspended above the stator assembly 222 by the elastic suspension assembly 223, i.e. the hair cutting unit 300 and the mover assembly 221 are both located above the stator assembly 222. Of course, in other embodiments, the mover assembly 221 may be suspended below the stator assembly 222 by the elastic suspension assembly 223, such that the base 224 is located above the stator assembly 222, and the hair cutting unit 300 is mounted on the base 224, that is, the hair cutting unit 300 and the mover assembly 221 are located on the upper and lower sides of the stator assembly 222, respectively. The specific positions of the rotor assembly 221, the stator assembly 222 and the hair cutting unit 300 are not limited herein, and only the stator assembly 222 can drive the rotor assembly 221 to reciprocate along a preset direction and drive the movable blade of the hair cutting unit 300 to move so as to cut hair.

Angular vibration refers to vibration of a particle around an axis only. When the reciprocating magnetic levitation linear motor is operated, particularly when the hair cutting unit 300 and the mover assembly 221 are disposed above the stator assembly 222, the entire driving apparatus 200 is caused to oscillate about the center of mass of the mover assembly 221 in a longitudinal plane due to the linear motion of the stator assembly 22 in a predetermined direction. The vibration of the driving device 200 is transmitted to the handle 100 to induce the handle 100 to generate angular vibration, so that the vibration of the handle 100 is particularly strong. The user has a strong shock feeling when grasping the handle 100, and a poor experience feeling. Through setting up the elastic suspension assembly 223 for base 224 hangs and connects in motor casing 210 through elastic support 230, then the vibrations of runner assembly 221 pass through elastic suspension assembly 223 first and transmit to base 224, and the transmission is further absorbed to elastic support 230 after being absorbed most by stator assembly 222 on base 224, finally is transmitted to motor casing 210 again. In this way, the vibration of the entire driving apparatus 200 is mostly absorbed and buffered by the stator assembly 222 and the elastic support 230, so that the vibration sense of the entire housing can be effectively weakened. Because the base 224 is connected to one end of the elastic supporting member 230 and the motor casing 210 is connected to the other end, compared with the scheme that one end of the elastic supporting member 230 is connected to the mover assembly 221 and the other end is connected to the motor casing 210, the weight of the base 224 and the stator assembly 222 is far greater than that of the mover assembly 221 and the hair cutting unit 300, so that the initial acceleration of the mover assembly 221 to the elastic supporting member 230 is smaller, the swing of the elastic supporting member 230 relative to the motor casing 210 is smaller, and the vibration reduction is facilitated.

The motor case 210 may be fixedly coupled to the bracket body 110 by means of a socket, screw connection, snap connection, or the like. The vibration damping vibrator 121 may specifically include a weight 122 and the like. The structure of the buffer mechanism 124 may be many, for example, the buffer mechanism 124 may be one or more of a shrapnel, a spring, and a damper, which only needs to achieve a certain buffer and shock absorption, and the structure of the buffer mechanism 124 is not limited in detail herein. There may be many ways to connect the buffer mechanism 124 to the mounting body, for example, the buffer mechanism 124 may be connected to the mounting body by a screw, a snap, welding, etc. There are many mounting locations for the vibration damper 120, for example, the vibration damper 120 may be disposed at the tail end, middle, etc. of the handle 100. So that the vibration damper 121 is suspended and fixedly connected to the bracket main body 110 through the buffer mechanism 124 to absorb the vibration of the handle 100 in a predetermined direction, the vibration damper 120 is equivalent to a vibration absorber. In actual use, the vibration damper 121 is not in direct contact with the support main 110, but is elastically connected with the support main 110 through the buffer mechanism 124, the vibration damper 121 swings reciprocally in a preset direction, and the swinging direction of the vibration damper 121 is opposite to the reciprocating direction of the mover assembly 221, and the natural frequency of the vibration damper 120 is approximately equal to the natural frequency of the driving device 200, so as to absorb the angular vibration transmitted to the handle 100 by the driving device 200. The electric shaver is more comfortable in hand feeling, and is particularly obvious under high-frequency vibration.

According to the electric shaver, one end of the elastic suspension assembly 223 is fixedly connected with the base 224, and the other end of the elastic suspension assembly is fixedly connected with the rotor assembly 221, so that the rotor assembly 221 and the stator assembly 222 are arranged at intervals; base 224 is suspended from motor housing 210 by resilient support 230. In this way, the rotor component 221 is connected to the base 224 through the elastic suspension component 223, the base 224 is connected to the motor casing 210 through the elastic support component 230, and the weight of the stator component 222 on the base 224 is fully utilized to realize buffering and damping, so that the swing amplitude of the elastic support component 230 relative to the motor casing 210 is smaller, and the vibration amplitude transmitted to the motor casing 210 is smaller.

Meanwhile, such that the handle 100 includes the bracket body 110 and the vibration damping device 120, the motor case 210 is fixedly coupled to the top of the bracket body 110; the vibration damping device 120 includes a vibration damping vibrator 121 and a buffering mechanism 124, and the vibration damping vibrator 121 is suspended and fixedly connected to the bracket main body 110 through the buffering mechanism 124 to absorb vibration of the handle 100 in a preset direction. In this way, the vibration damping device 120 is provided on the bracket main body 110 of the handle 100, so that the vibration damping vibrator 121 is suspended and fixedly connected to the bracket main body 110 through the buffer mechanism 124, and the vibration damping vibrator 121 absorbs the angular vibration of the handle 100, thereby further reducing the vibration transmitted from the driving device 200 to the handle 100. Therefore, the driving device 200 of the electric shaver of the present utility model realizes primary vibration reduction through the elastic support 230, and the handle 100 realizes secondary vibration reduction through the vibration reduction device 120, which can effectively weaken the vibration of the whole handle 100, so that the use feeling of the electric shaver is better.

In one embodiment, as shown in fig. 2, 4 and 5, the bracket body 110 is in an elongated shape extending up and down, and the vibration damping device 120 is disposed at an end of the bracket body 110 away from the driving device 200.

In the present embodiment, the bracket body 110 is made to have a long strip shape extending up and down, and the cross-sectional shape of the bracket body 110 may be many, such as a circle, an ellipse, a rectangle, a polygon, a special shape, etc., which is not particularly limited herein. In order to have a sufficient installation space and to facilitate grasping by a user, the handle 100 of the shaver is generally elongated. It can be appreciated that, since the driving device 200 is fixedly connected to the top of the bracket main body 110, and the bracket main body 110 is in a vertically extending strip shape, when the vibration of the driving device 200 is transferred to the handle 100, the vibration sense of the tail (the end far from the driving device 200) of the handle 100 is particularly strong. Therefore, by arranging the vibration damping device 120 at the end of the stand body 110 away from the driving device 200, the shock feeling of the handle 100 can be reduced to the maximum extent, and the comfort of use can be further improved.

Further, the electric shaver further includes a battery 400, and the battery 400 is embedded in the holder body 110 and located between the vibration reduction device 120 and the driving device 200. Specifically, the electric shaver further includes a circuit board and a conductive structure, the circuit board is electrically connected to the battery 400 through the conductive structure, and the circuit board is connected to the coil of the stator assembly 222 through a wire for supplying current to the stator assembly 222. The conductive structure may be a wire or other electrical connection structure that allows the battery 400 to be charged by an external power source. So that the battery 400 is embedded in the bracket body 110 and located between the vibration reduction device 120 and the driving device 200, the battery 400 can increase the weight of the handle 100 and can reduce shock to some extent. And the vibration damping device 120 is disposed at one end of the battery 400 away from the driving device 200, such that the bracket main body 110 is substantially located at the extreme end of the bracket main body 110, and thus the vibration damping effect of the vibration damping device 120 is better. And simultaneously, the vibration damping device 120 is installed by fully utilizing the space at the lower part of the battery 400, so that the overall structure is more compact.

In an embodiment, referring to fig. 2 and fig. 4 to fig. 8, a suspension space 111 is formed on the bracket main body 110, the buffer mechanism 124 includes two buffer members 125, and two ends of the vibration damping vibrator 121 in a predetermined direction are fixedly connected to the bracket main body 110 through the buffer members 125 so as to be suspended in the suspension space 111.

In this embodiment, the structure of the buffer member 125 may be many, for example, the buffer member 125 may be a plate spring structure, a cylindrical spring, or the like, and only a certain buffer may be realized, which is not particularly limited herein. By providing the suspension space 111 on the stand main body 110, the vibration damper 121 is embedded in the suspension space 111, and the thickness of the entire handle 100 is not additionally increased. It will be appreciated that the volume of the suspension space 111 is greater than the volume of the entire vibration damping device 120. The two ends of the vibration damper 121 in the preset direction are fixedly connected to the bracket main body 110 through a buffer member 125, so that the vibration damper 121 can swing reciprocally along the preset direction through the buffer member 125, and further the vibration of the handle 100 in the preset direction can be absorbed.

Further, as shown in fig. 10 and 11, the buffer member 125 includes at least one plate spring structure 126 extending in a plate shape, a center connection end 127 of the plate spring structure 126 is fixedly connected with an end of the vibration damping vibrator 121 in a predetermined direction, and an outer connection end 129 of the plate spring structure 126 is fixedly connected with the bracket main body 110.

In this embodiment, the leaf spring structure 126 is a sheet-like mechanism. The plate spring structure 126 is a structure that spirals outward from the center, and the plate spring elastic sheet may spiral in a mosquito-repellent incense shape, spiral in a racetrack shape, or the like, which is not particularly limited herein. The buffer member 125 may include only one leaf spring structure 126, or may include two or more leaf spring structures 126 stacked or spaced apart, and the number of leaf spring structures 126 may be selected according to actual needs, which is not particularly limited herein. The center connection end 127 of the leaf spring is referred to as the center coil start end, and the outer connection end 129 of the leaf spring structure 126 is referred to as the outer coil end. The center connection end 127 of the leaf spring structure 126 and the vibration damping vibrator 121 may be fixedly connected by means of screws, welding, or the like. The outer connection end 129 of the leaf spring structure 126 and the bracket body 110 may be fixedly connected by means of screws, welding, or the like. By making the leaf spring structure 126 spiral in the center, the elastic arm of the leaf spring structure 126 can be made longer than other structures in the same occupied space, and thus sufficient elastic force and supporting force can be provided to the vibration damping vibrator 121. In other words, the leaf spring structure 126 of the present embodiment can make the occupied space smaller while ensuring sufficient elastic force and supporting force, and the entire volume of the vibration damping device 120 is smaller.

In one embodiment, as shown in fig. 5 to 11, the vibration damping device 120 further includes a connection block 131 fixedly connected to the bracket main body 110; the external connection ends 129 of the two buffering members 125 are respectively and fixedly connected to two ends of the connection block 131, and the connection block 131 and the vibration damper 121 are arranged at intervals.

In the present embodiment, the connection block 131 and the bracket main body 110 may be fixedly connected by means of screws, fitting, riveting, welding, or the like. The connection block 131 may be located above, below, in front of, behind, etc. the vibration damping vibrator 121, and is not particularly limited herein. The vibration damper 120 further includes a connection block 131, and the external connection ends 129 of the two buffering members 125 are respectively and fixedly connected to two ends of the connection member, so that the vibration damper 121, the two buffering members 125 and the connection block 131 can be connected into a module. Thus, when the vibration damper 120 is installed, the connection between the whole vibration damper 120 and the bracket main body 110 can be realized only by installing the connecting block 131 on the bracket main body 110, so that the installation of the whole vibration damper 120 is more convenient and quick. The connection block 131 is spaced from the vibration damper 121, so that the connection block 131 does not affect the movement of the vibration damper 121 and thus the vibration damper 120. The connection block 131 and the external connection end 129 of the buffer member 125 may be fixedly connected by welding, riveting, screw connection, or the like. In order to facilitate the disassembly and assembly of the connection block 131 and the buffer members 125, the external connection ends 129 of the two buffer members 125 are optionally fixedly connected to the connection block 131 by at least one fastener 130. The fastener 130 may be a screw structure in particular. Of course, the fastener 130 may be a bolt, a rivet structure, or the like.

In an embodiment, referring to fig. 5 to 11 again, the vibration damper 121 includes a weight 122 and a central shaft 123, the central shaft 123 is disposed through and is mounted on the weight 122 around the axis thereof in a limiting manner, and two ends of the central shaft 123 are respectively and fixedly connected with two central connecting ends 127.

In this embodiment, the cross section of the central shaft 123 is non-circular, and the balancing weight 122 has a mounting channel adapted to the central shaft 123. The central shaft 123 is penetrated through the installation channel of the balancing weight 122, and the limiting of the central shaft 123 and the balancing weight 122 on the axis around the central shaft 123 is realized through the outer wall surface of the central shaft 123 and the inner wall surface of the installation channel of the balancing weight 122, so that the central shaft 123 can be prevented from rotating relative to the balancing weight 122, and the deviating movement track of the balancing weight 122 is avoided. The weight 122 may be a metal block. The shape of the weight 122 may be any number, for example, the cross-sectional shape of the weight 122 may be rectangular, circular, elliptical, or irregular, and is not particularly limited herein. Make the both ends of central axis 123 respectively with central link 127 fixed connection, that is, balancing weight 122 realize through central axis 123 with leaf spring structure 126 fixed, compare in making the central link 127 of leaf spring structure 126 direct with balancing weight 122 fixed connection, can effectively reduce the installation error, and then guarantee balancing weight 122 in the ascending weight balance of predetermineeing for balancing weight 122 is unanimous in the ascending shock absorption amplitude of predetermineeing the direction, avoids appearing one side shock sense strong, one side shock sense weak condition. Meanwhile, since the vibration of the buffer member 125 is transmitted to the connection portion between the central connecting end 127 and the central shaft 123, the central shaft 123 is easily damaged, and the cost for replacing the central shaft 123 is lower than that for replacing the balancing weight 122.

In one embodiment, as shown in fig. 5, 6 and 9-11, the central connecting end 127 is provided with a positioning jack 128, and the central shaft 123 is adapted to be inserted into the positioning jack 128; the vibration damping device 120 further includes a first connecting member 133, where the first connecting member 133 penetrates through the positioning hole 128 and the end of the central shaft 123 to fixedly connect the central connecting end 127 with the central shaft 123. The first connector 133 may be a screw. So that the central shaft 123 is adapted to be inserted into the positioning insertion hole 128, and the pre-positioning installation of the plate spring structure 126 and the central shaft 123 is realized, thereby facilitating the subsequent screw connection. The first connecting piece 133 is penetrated through the positioning jack 128 of the central connecting shaft to fixedly connect the central connecting section of the plate spring structure 126 and the central shaft 123, so that the plate spring structure 126 and the central shaft 123 are detachably connected, and the subsequent maintenance and replacement are more convenient.

In an embodiment, referring to fig. 5, 6, and 9 to 11, two ends of the central shaft 123 extend out of the balancing weight 122, and the vibration damping device 120 further includes a first spacer 134 and a second spacer 135 respectively disposed on two sides of the leaf spring structure 126, where the first spacer 134 is sleeved on the periphery of the central shaft 123 and is sandwiched between the central connecting end 127 and the balancing weight 122; the second gasket 135 is sandwiched between the first connecting piece 133 and the central connecting end 127; the bracket main body 110 is provided with a clearance hole 113 corresponding to the first connecting piece 133, and an inner wall surface of the clearance hole 113 is located at the periphery of the outer peripheral wall of the second gasket 135.

In this embodiment, the first connecting member 133 is a screw, and the second spacer 135 is sleeved on the shaft portion of the screw and is sandwiched between the head 620 and the central connecting end 127 of the screw. Through setting up first gasket 134 and second gasket 135 for first gasket 134 presss from both sides and locates between center link 127 and the balancing weight 122, and second gasket 135 presss from both sides and locates between first connecting piece 133 and the center link 127, and this first gasket 134 and second gasket 135 can effectively avoid leaf spring shell fragment laminating balancing weight 122, and make the connection between first connecting piece 133, the center link 127 of leaf spring shell fragment, the center pin 123 more firm, difficult pine takes off. By providing the avoidance hole 113 at a position of the bracket main body 110 corresponding to the first connecting piece 133, the inner wall surface of the avoidance hole 113 is located at the periphery of the outer peripheral wall of the second gasket 135, so that the vibration damper 120 can be effectively prevented from colliding with the bracket main body 110 when swinging in a preset direction, and the vibration damper 120 is further ensured to have a vibration damper effect.

In an embodiment, as shown in fig. 10 to 12, two opposite side walls of the connection block 131 extending along a preset direction are recessed to form a limit groove 132; the top wall of the suspension space 111 is provided with two opposite spacing protrusions 112 which are arranged at intervals; the two limiting protrusions 112 are correspondingly embedded in the two limiting grooves 132 to limit the movement of the connecting block 131 relative to the bracket main body 110 in a preset direction; the electric shaver further includes a second connection member 500 penetrating the limit protrusion 112 and fixedly connecting the stand body 110 and the connection block 131 to each other.

In the present embodiment, two opposite and spaced-apart limiting protrusions 112 are provided on the top wall of the suspension space 111 by recessing opposite side walls of the connection block 131 extending in a predetermined direction to form the limiting groove 132. When in installation, the connection block 131 is embedded at the top of the suspension space 111, and the limit protrusion 112 of the top wall of the suspension space 111 is inserted in the limit groove 132 of the connection block 131 to limit the movement of the connection block 131 in the preset direction, so that the pre-positioning installation of the connection block 131 and the bracket main body 110 can be realized. The second connecting member 500 may be a screw, a rivet, or the like, and optionally, the second connecting member 500 is a screw for easy assembly and disassembly. The second connecting piece 500 is provided with the limiting protrusion 112 in a penetrating manner and fixedly connected with the bracket main body 110 and the connecting block 131, and the limiting protrusion 112 is fully utilized to ensure the structural strength of the bracket main body 110, so that the connection between the bracket main body 110 and the connecting block 131 is more stable and reliable. The connection block 131 is connected to the top wall of the suspension space 111, so that the entire counterweight 122 is located below the connection block 131, and compared with the connection block 131 disposed on the bottom wall or the side wall of the suspension space 111, the influence of gravity on the buffer member 125 is reduced, and the damping effect of the damping device 120 is improved.

In one embodiment, the difference between the natural frequency of the vibration damping device 120 and the natural frequency of the driving device 200 is greater than or equal to-5 HZ and less than or equal to 5HZ; and/or the mass of the damping vibrator 121 is positively correlated with the mass of the mover assembly 221.

In the present embodiment, when the absolute value of the difference between the natural frequency of the vibration damping device 120 and the natural frequency of the driving device 200 is greater than 5HZ, the difference between the natural frequency of the vibration damping device 120 and the natural frequency of the driving device 200 is made excessively large, and the vibration damping effect of the vibration damping device 120 is not obvious. By making the absolute value of the difference between the natural frequency of the vibration damping device 120 and the natural frequency of the driving device 200 smaller than 5HZ, the vibration damping device 120 can absorb the vibration of the handle 100 to a greater extent, so as to weaken the vibration sense of the whole machine and improve the use experience of users.

It will be appreciated that the greater the mass of the mover assembly 221, the greater the shock of the handle 100. By positively correlating the mass of the vibration damping vibrator 121 with the mass of the mover assembly 221, i.e., when the mass of the mover assembly 221 is larger, the larger the mass of the vibration damping vibrator 121 is also set, the angular vibration of the handle 100 can be absorbed more effectively. The hair cutting unit 300 includes a movable cutter, and the mover assembly 221 is connected to the movable cutter to drive the movable cutter to reciprocate in a preset direction. The amplitude of the drive means 200 is related to the sum of the masses of the mover assembly 221 and the movable cutter head. Alternatively, the mass of the vibration damping vibrator 121 is arranged in positive correlation with the sum of the masses of the mover assembly 221 and the movable cutter head. In this way, the shock absorbing effect of the vibration damper 121 can be further improved. Specifically, the ratio of the mass of the vibration damping vibrator 121 to the sum of the masses of the mover assembly 221 and the movable cutter head is less than 0.9 and greater than 1.1. When the ratio of the mass of the vibration damper 121 to the sum of the mass of the mover assembly 221 and the moving blade is less than 0.9 and greater than 1.1, the amplitude of the vibration damper 121 is greater than that of the driving device 200, and the overall vibration damping effect is poorer. By making the ratio of the mass of the vibration damper 121 to the sum of the mass of the mover assembly 221 and the moving blade be greater than or equal to 0.9 and less than or equal to 1.1, the vibration of the entire driving device 200 is substantially consistent with the vibration damper 121, so that the vibration damper 120 can absorb the vibration of the handle 100 to a greater extent, and the product quality is improved.

The mass of the damper vibrator 121 is also affected by the lateral dimension of the suspension space 111. In combination with the above embodiment in which the suspension space 111 is formed in the bracket body 110, further, the mass of the vibration damping vibrator 121 is inversely related to the gap between the side wall of the vibration damping vibrator 121 in the predetermined direction and the inner wall of the suspension space 111. It is understood that when the gap between the side wall of the damper vibrator 121 in the preset direction and the inner wall of the suspension space 111 is large, the amplitude allowed by the damper vibrator 121 is large, which can make the mass setting of the damper vibrator 121 small. When the gap between the side wall of the damper vibrator 121 in the preset direction and the inner wall of the suspension space 111 is small, the amplitude allowed by the damper vibrator 121 is small, and it is necessary to make the mass setting of the damper vibrator 121 large. By making the mass of the vibration damping vibrator 121 inversely correlate with the gap between the side wall of the vibration damping vibrator 121 in the preset direction and the inner wall of the suspension space 111, it is possible to ensure effective swinging of the vibration damping device 120, and thus to make the buffering and vibration damping effect of the vibration damping device 120 better.

In an embodiment, referring to fig. 1 and 2, the electric shaver further includes a housing 600, the housing 600 includes a handle 610 and a head 620 connected to the top end of the handle 610, the driving device 200 is fixedly mounted in the head 620, and the handle 100 is mounted in the handle 610; a groove 114 is formed in the bracket main body 110 adjacent to the upper part of the balancing weight 122, a sealing ring 700 is embedded in the groove 114, and the bracket main body 110 is abutted against the inner wall surface of the shell 600 through the sealing ring 700; the outer wall surface of the damper vibrator 121 is spaced from the inner wall surface of the case 600. The housing 600 provides protection for the handle 100, the drive device 200, etc. The motor of the driving device 200 may be screwed to the housing 600 to fix the driving device 200 in the head 620 of the housing 600. By providing the groove 114 on the support main body 110, the support main body 110 is abutted against the inner wall surface of the casing 600 through the sealing ring 700, so that the support main body 110 is prevented from directly contacting the casing 600, and vibration of the support main body 110 can be further prevented from being directly transmitted to the casing 600, thereby weakening the hand-holding shock feeling of a user.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric shaver comprises a handle, a driving device arranged at the top end of the handle and a hair cutting unit, and is characterized in that,

the handle comprises a bracket main body and a vibration damper, and the motor casing is fixedly connected to the top of the bracket main body; the vibration damper comprises a vibration damper body and a buffer mechanism, wherein the vibration damper body is fixedly connected to the support body in a suspension mode through the buffer mechanism so as to absorb angular vibration of the handle caused by the driving device.

2. The electric razor of claim 1, wherein the holder body has a vertically elongated shape, and the vibration damping means is provided at an end of the holder body remote from the driving means.

3. The electric razor of claim 2, further comprising a battery embedded in the holder body and located between the vibration reduction means and the drive means.

4. The electric razor as claimed in any one of claims 1 to 3, wherein a suspension space is provided in the holder body, the buffer mechanism comprises two buffer members, and both ends of the vibration damping vibrator in the predetermined direction are fixedly connected to the holder body through the buffer members, respectively, so as to be suspended in the suspension space.

5. The electric razor of claim 4, wherein the buffer member comprises at least one plate spring structure extending in a plate shape, a center connection end of the plate spring structure is fixedly connected with an end of the vibration damping vibrator in the preset direction, and an outer connection end of the plate spring structure is fixedly connected with the stand body.

6. The electric razor of claim 5, wherein the vibration damping device further comprises a connection block fixedly connected to the stand body; the external connection ends of the two buffering pieces are respectively and fixedly connected to the two ends of the connecting block, and the connecting block and the vibration reduction vibrator are arranged at intervals.

7. The electric razor of claim 6, wherein the vibration damper comprises a weight and a central shaft, the central shaft is inserted through and is mounted on the weight around the axis thereof in a limited manner, and two ends of the central shaft are fixedly connected with two connecting ends of the central shaft respectively.

8. The electric shaver set forth in claim 7 wherein the center connection end is provided with a positioning jack, the center shaft being adapted to be inserted into the positioning jack; the vibration damper further comprises a first connecting piece, wherein the first connecting piece penetrates through the positioning jack and the end part of the central shaft to fixedly connect the central connecting end with the central shaft.

9. The electric razor of claim 8, wherein the two ends of the central shaft extend out of the balancing weight, the vibration damper further comprises a first gasket and a second gasket which are respectively arranged at two sides of the plate spring structure, the first gasket is sleeved at the periphery of the central shaft and is clamped between the central connecting end and the balancing weight; the second gasket is clamped between the first connecting piece and the central connecting end; the support main body corresponds the first connecting piece and has seted up the position hole that keeps away, the internal face in position hole is located the periphery of the periphery wall of second gasket.

10. The electric razor of claim 6, wherein two opposite side walls of the connecting block extending in the predetermined direction are recessed to form a limit groove; the top wall of the suspension space is provided with two opposite spacing protrusions which are arranged at intervals; the two limiting protrusions are correspondingly embedded in the two limiting grooves so as to limit the movement of the connecting block relative to the bracket main body in the preset direction; the electric shaver further comprises a second connecting piece, and the second connecting piece penetrates through the limiting protrusion and is fixedly connected with the bracket main body and the connecting block.

11. An electric shaver according to any one of claims 1 to 3, wherein the difference between the natural frequency of the vibration damping means and the natural frequency of the driving means is greater than or equal to-5 HZ and less than or equal to 5HZ; and/or the mass of the vibration damping vibrator is positively correlated with the mass of the rotor assembly.

12. The electric razor of claim 1, further comprising a housing, the housing comprising a handle and a head connected to a top end of the handle, the drive device being fixedly mounted in the head, the handle being mounted in the handle; a groove is formed in the position, adjacent to the upper part of the vibration damper, of the support main body, a sealing ring is embedded in the groove, and the support main body is abutted to the inner wall surface of the shell through the sealing ring; the outer wall surface of the vibration damping vibrator and the inner wall surface of the shell are arranged at intervals.