Miniature linear reciprocating driver

Abstract

The utility model relates to the technical field of linear driving modules, in particular to a miniature linear reciprocating driver which comprises a frame body, a linear moving module, an electromagnetic module and a magnet, the electromagnetic module and the magnet are both arranged on the frame body, the magnet is used for magnetizing a movable part, and the movable part with rebound resilience is arranged between the linear moving module and the frame body. The electromagnetic module is used for generating an alternating magnetic field to drive the linear moving module to reciprocate. According to the utility model, the magnetized linear moving module is driven by the electromagnetic module to reciprocate on the moving part, the effect of enabling the linear moving module to act at high frequency is achieved by utilizing the cooperation of the moving part with rebound resilience, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear drive module technical field, especially a micro linear reciprocating driver. BACKGROUND

[0002] For electronic devices such as electric shavers, linear motors are one of the core parts. The linear motor required by such electronic devices needs to have the effect of high-frequency reciprocating motion, so as to realize the effect of automatic tooth brushing with the brush head.

[0003] The existing linear motor still has a transmission structure, that is, converting rotary motion into linear motion, which obviously involves mechanical transmission, resulting in a relatively complex structure and being not conducive to reducing the overall size of the electric shaver. SUMMARY

[0004] The utility model discloses a micro linear reciprocating driver can utilize the transformation of magnetic field to drive linear motion directly, thereby simplifying the structure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model provides a micro linear reciprocating driver, including frame body, linear movement module, the electromagnetic module and magnet that set up in frame body, magnet is used for magnetizing movable part, the movable part that has the resilience between linear movement module and frame body is set up, electromagnetic module is used to produce the alternating magnetic field to drive linear movement module and carries out reciprocating motion.

[0007] Further, the frame body is provided with a magnetic conducting member, the movable part includes a floating end and two fixed ends, the two fixed ends are connected to the two ends of the magnetic conducting member respectively, and the magnet magnetizes the movable part through the magnetic conducting member; the floating end has a floating gap with the frame body, and the linear movement module is installed on the floating end.

[0008] Still further, the frame body is provided with a mounting groove, and a positioning protrusion is arranged in the mounting groove; the fixed end is provided with a positioning groove, and the positioning groove is used for accommodating the positioning protrusion.

[0009] Still further, the mounting groove is arranged at one end of the frame body, the magnetic conducting member is arranged at the other end of the frame body, the magnetic conducting member is located between the frame body and the magnet, and the magnet is located between the magnetic conducting member and the electromagnetic module.

[0010] Still further, the number of the movable part, the linear movement module and the magnet is two respectively, the floating end of one movable part is located between the two fixed ends of another movable part, two magnets and two movable parts are arranged one by one in correspondence, and two linear movement modules and two movable parts are installed one by one in correspondence.

[0011] Two magnets are arranged at intervals in the magnetic conducting member, and the two magnets are opposite to each other and have opposite polarities at one end.

[0012] Further, the linear moving module comprises a main body, a mounting member and an elastic member, the main body is mounted on the movable member, the main body is provided with a limiting groove, the mounting member is movably arranged in the mounting groove, and the elastic member is arranged between the limiting groove and the mounting member.

[0013] Further, the elastic member comprises a spring and a guide column, the guide column is fixed in the limiting groove, the spring is sleeved on the guide column, the mounting member is slidably arranged on the guide column, and the two ends of the spring are connected with the mounting groove and the limiting groove respectively.

[0014] Further, the main body and the movable member are integrally formed.

[0015] Further, the two side inner walls of the limiting groove are respectively provided with limiting portions, and the limiting portions are used for preventing the mounting member from being separated from the limiting groove.

[0016] The linear moving module driven by the electromagnetic module and magnetized reciprocally moves on the movable member, the movable member with the elastic performance is used to achieve the effect that the linear moving module moves at a high frequency, and the structure is simple. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a schematic view of the utility model.

[0018] Fig. 2 It is an exploded schematic view of the utility model.

[0019] Fig. 3 It is a schematic view of the movable member and the linear moving module of the utility model.

[0020] Fig. 4 It is a schematic view of the frame body of the utility model.

[0021] Fig. 1 is a frame body, Fig. 2 is a linear moving module, Fig. 3 is an electromagnetic module, Fig. 4 is a magnet, Fig. 5 is a movable member, Fig. 11 is a magnetic conducting member, Fig. 12 is a mounting groove, Fig. 13 is a positioning protrusion, Fig. 21 is a main body, Fig. 22 is a mounting member, Fig. 23 is an elastic member, Fig. 24 is a limiting groove, Fig. 25 is a spring, Fig. 26 is a guide column, Fig. 27 is a limiting portion, Fig. 51 is a floating end, Fig. 52 is a fixed end, and Fig. 53 is a positioning groove. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of those skilled in the art, the utility model is further described below in combination with examples and drawings, and the content mentioned in the implementation manner is not a limitation on the utility model. The utility model is described in detail below in combination with drawings.

[0023] As Figs. 1 to 4The utility model provides a micro linear reciprocating driver, including frame body 1, linear movement module 2, the electromagnetic module 3 and magnet 4 of being all arranged at frame body 1, magnet 4 is used for magnetizing movable element 5, movable element 5 with the rebound performance is arranged between linear movement module 2 and frame body 1, electromagnetic module 3 is used to produce the alternating field to drive linear movement module 2 and carry out reciprocating motion.

[0024] Specifically, magnet 4 realizes magnetization for movable element 5, so that when electromagnetic module 3 produces alternating field, movable element 5 is adsorbed or repelled due to alternating field, thereby realizing the effect of driving linear movement module 2 to reciprocate.

[0025] And the rebound performance of the utility model, it means that movable element 5 needs to have certain self-recovery performance, and can be magnetized, for example, commonly used structure such as metal spring, or other structures not mentioned.

[0026] In the embodiment, the frame body 1 is provided with a magnetic guide 11, the movable element 5 includes a floating end 51 and two fixed ends 52, the two fixed ends 52 are connected to the two ends of the magnetic guide 11 respectively, and the magnet 4 magnetizes the movable element 5 through the magnetic guide 11; the floating end 51 has a floating gap with the frame body 1, and the linear movement module 2 is installed on the floating end 51.

[0027] That is, the two fixed ends 52 of the movable element 5 are fixed to the frame body 1 by screws, and the floating end 51 is in a suspended state when not in action, so that the floating end 51 has a floating gap with the frame body 1. The magnet 4 magnetizes the floating end 51 through the magnetic guide 11 and the fixed end 52, and when the electromagnetic module 3 is in action, the floating end 51 constantly rises and falls under the action of the alternating field, so that the depth of the floating gap constantly changes, realizing the effect of driving the linear movement module 2 to reciprocate.

[0028] Specifically, the frame body 1 is provided with a mounting groove 12, and the mounting groove 12 is provided with a positioning protrusion 13; the fixed end 52 is provided with a positioning groove 53, and the positioning groove 53 is used for accommodating the positioning protrusion 13. During installation, the fixed end 52 is installed in the mounting groove 12, so that the positioning protrusion 13 is installed in the positioning groove 53, thereby completing the quick assembly of the fixed end 52, and subsequent only need to perform a screw locking action, which can complete the assembly of the movable element 5, simple and efficient.

[0029] Specifically, the mounting groove 12 is arranged at one end of the frame body 1, the magnetic guide 11 is arranged at the other end of the frame body 1, the magnetic guide 11 is located between the frame body 1 and the magnet 4, and the magnet 4 is located between the magnetic guide 11 and the electromagnetic module 3. The frame body 1 separates the magnetic guide 11 and the movable element 5, thereby ensuring to reduce the interference between them.

[0030] Specifically, the number of the moving parts 5, the linear moving module 2 and the magnets 4 is two respectively, the floating end 51 of one moving part 5 is respectively between the two fixed ends 52 of another moving part 5, the two magnets 4 are arranged one by one corresponding to the two moving parts 5, and the two linear moving modules 2 are installed one by one corresponding to the two moving parts 5; the two magnets 4 are arranged in the magnetic conducting part 11 in a spaced manner, and the polarities of the two magnets 4 are opposite to each other at the ends facing each other.

[0031] That is, under the action of the same alternating magnetic field, the actions of the two moving parts 5 are opposite, so that the two moving parts 5 can better drive the floating head of the electric shaver to act.

[0032] In the embodiment, the linear moving module 2 comprises a main body 21, a mounting part 22 and an elastic part 23, the main body 21 is installed on the moving part 5, the main body 21 is provided with a limiting groove 24, the mounting part 22 is movably arranged in the mounting groove 12, and the elastic part 23 is arranged between the limiting groove 24 and the mounting part 22.

[0033] In actual use, the main body 21 and the moving part 5 are integrally formed to ensure that they are not separated from each other. The floating head of the electric shaver is sleeved on the main body 21 and connected with the mounting part 22, so as to act along with the reciprocating movement of the main body 21. The arrangement of the elastic part 23 is conducive to achieving the buffering effect, so that the force of each action of the brush head is partially absorbed by the spring 25, thereby avoiding causing excessive impact on the human body.

[0034] Specifically, the elastic part 23 comprises a spring 25 and a guide column 26, the guide column 26 is fixed in the limiting groove 24, the spring 25 is sleeved on the guide column 26, the mounting part 22 is slidably arranged on the guide column 26, and the two ends of the spring 25 are respectively connected with the limiting groove 24.

[0035] The spring 25 is deformed to continuously absorb and release energy, which is conducive to timely processing of energy, so that the force of the moving part 5 will not be too large.

[0036] Specifically, the two side inner walls of the limiting groove 24 are respectively provided with limiting parts 27, and the limiting parts 27 are used for preventing the mounting part 22 from being separated from the limiting groove 24.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical scheme of the present application to obtain equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the present application technical scheme shall be within the scope of the present application technical scheme.

Claims

1. A micro linear reciprocating drive, characterized by: The linear moving module comprises a main body, a mounting piece and an elastic piece, the main body is installed on the movable piece, the main body is provided with a limiting groove, the mounting piece is movably arranged in the mounting groove, and the elastic piece is arranged between the limiting groove and the mounting piece. The linear moving module comprises a main body, a mounting piece and an elastic piece, the main body is installed on the movable piece, the main body is provided with a limiting groove, the mounting piece is movably arranged in the mounting groove, and the elastic piece is arranged between the limiting groove and the mounting piece.

2. The micro linear reciprocating drive according to claim 1, characterized in that: The movable piece comprises a floating end and two fixed ends, the two fixed ends are connected to the two ends of the magnetic conducting piece respectively, the magnet magnetizes the movable piece through the magnetic conducting piece; the floating end has a floating gap with the frame body, and the linear moving module is installed on the floating end.

3. The micro linear reciprocating drive according to claim 2, characterized in that: The frame body is provided with a mounting groove, and the mounting groove is provided with a positioning protrusion; the fixed end is provided with a positioning groove, and the positioning groove is used for accommodating the positioning protrusion.

4. The micro linear reciprocating drive according to claim 3, characterized in that: The mounting groove is arranged at one end of the frame body, the magnetic conducting piece is arranged at the other end of the frame body, the magnetic conducting piece is located between the frame body and the magnet, and the magnet is located between the magnetic conducting piece and the electromagnetic module.

5. The micro linear reciprocating drive according to claim 2, wherein: The number of the movable piece, the linear moving module and the magnet is two respectively, the floating end of one movable piece is located between the two fixed ends of another movable piece, two magnets and two movable pieces are arranged one by one, and two linear moving modules and two movable pieces are installed one by one. The two magnets are arranged at intervals on the magnetic conducting piece, and the polarities of the two magnets opposite to each other are opposite.

6. The micro linear reciprocating drive according to claim 1, wherein: The elastic piece comprises a spring and a guide column, the guide column is fixed in the limiting groove, the spring is sleeved on the guide column, the mounting piece is slidably arranged on the guide column, and the two ends of the spring are connected to the mounting groove and the limiting groove respectively.

7. The micro linear reciprocating drive according to claim 1, wherein: The main body and the movable piece are integrally formed.

8. The micro linear reciprocating drive according to claim 1, wherein: The two side walls of the limiting groove are respectively provided with limiting portions, and the limiting portions are used for preventing the mounting piece from separating from the limiting groove.

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