CN110085481B

CN110085481B - Electromagnetic switching device

Info

Publication number: CN110085481B
Application number: CN201910334225.3A
Authority: CN
Inventors: 严绪东; 金云浩; 游泳; 石梦珣; 周科勇
Original assignee: Changzhou Ruitai Photoelectric Co Ltd
Current assignee: Jiangsu Jicui Zhongyi Technology Industry Development Co ltd; Changzhou Ruitai Photoelectric Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-09-29
Anticipated expiration: 2039-04-24
Also published as: CN110085481A; WO2020215379A1

Abstract

The invention provides an electromagnetic switch device, which comprises a shell, a stator arranged in the shell and a rotor capable of moving relative to the stator, wherein the stator comprises a fixed iron core fixed on the shell and a cylindrical coil fixed in the shell, and the fixed iron core is arranged in the coil; the rotor comprises a movable iron core which is arranged in the coil and positioned on one side of the fixed iron core, and a reset elastic piece is connected between the fixed iron core and the movable iron core; the end face of the movable iron core, facing the fixed iron core, is provided with a first accommodating groove for accommodating one end of the reset elastic piece, and the end face of the fixed iron core, facing the movable iron core, is provided with a second accommodating groove for accommodating the other end of the reset elastic piece; the electromagnetic switch device also comprises a connecting piece which is connected to the movable iron core and the tail end of which extends to the outer side of the shell so as to be connected with an external device, and the connecting piece is driven by the movable iron core to generate displacement. The electromagnetic switch device provided by the invention has the advantages of simple structure, simple processing and assembly of parts and low cost.

Description

Electromagnetic switching device

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of electronic equipment, in particular to an electromagnetic switch device applied to mobile terminal equipment.

[ background of the invention ]

In the current mobile phone industry, the lifting function of the internal elements of the mobile phone is realized by a module of a stepping motor, a reducer and a transmission screw pair; the working principle is as follows: the extending gear shaft of the stepping motor is meshed with a gear of the speed reducer, the motor rotates at a high speed, torque is transmitted to the speed reducer through the gear, speed reduction and torque increase are achieved, the rear end of the speed reducer is connected with the screw rod pair, rotary motion is converted into linear motion, and a nut on the screw rod pair moves linearly to drive an internal element to lift. This kind of current lift scheme exists not enoughly and shortcoming: the module has the advantages of complex structure, high requirement on part machining precision, high assembly difficulty, high cost and high difficulty in batch production.

Therefore, there is a need for an electromagnetic switching device having a simpler structure.

[ summary of the invention ]

An object of the present invention is to provide an electromagnetic switching device having a simpler structure.

The technical scheme of the invention is as follows:

the electromagnetic switch device is characterized in that the stator comprises a fixed iron core fixed on the shell and a cylindrical coil fixed in the shell, and the fixed iron core is arranged in the coil; the mover comprises a movable iron core which is arranged in the coil and positioned on one side of the fixed iron core, the coil is sleeved on the periphery of the fixed iron core and the periphery of the movable iron core, a reset elastic piece is connected between the fixed iron core and the movable iron core, the coil drives the movable iron core to move relative to the fixed iron core along the axial direction, and the reset elastic piece provides restoring force for the movable iron core; a first accommodating groove for accommodating one end of the reset elastic piece is formed in the end face, facing the fixed iron core, of the movable iron core, and a second accommodating groove for accommodating the other end of the reset elastic piece is formed in the end face, facing the movable iron core, of the fixed iron core; the electromagnetic switch device further comprises a connecting piece which is connected to the movable iron core and the tail end of which extends to the outer side of the shell so as to be connected with an external device, and the connecting piece is driven by the movable iron core to generate displacement.

Furthermore, the movable iron core faces towards one end of the fixed iron core, a guide convex column is arranged on the movable iron core in a protruding mode, and a guide groove matched with the guide convex column is formed in the fixed iron core in a protruding mode.

Furthermore, the fixed iron core faces towards one end of the movable iron core, a guide convex column is arranged on the fixed iron core in a protruding mode, and a guide groove matched with the guide convex column is arranged on the movable iron core in a protruding mode.

Furthermore, a damping piece is arranged between one side of the movable iron core, which deviates from the fixed iron core, and the shell.

Further, the return elastic member is a coil spring.

Furthermore, the connecting piece includes the latch and connects the latch and the connecting rod of moving the iron core, set up the through-hole that supplies on the shell the connecting rod passes through.

Further, the electromagnetic switch device further comprises a support for fixing the coil, the support comprises a sleeve sleeved on the fixed iron core and the movable iron core and two end walls extending outwards along the radial direction from the edges of two ports of the sleeve, and the coil is sleeved on the outer portion of the sleeve and clamped between the two end walls.

Furthermore, the shell comprises a shell main body and a cover plate, wherein the shell main body is provided with a containing cavity for containing the coil, the fixed iron core and the movable iron core, the cover plate covers the shell main body, and the through hole is formed in the cover plate.

Further, the shell main part include with the apron is relative and the diapire that the interval set up and certainly the edge of diapire is towards the lateral wall that the apron extends, it fixes to decide the iron core the diapire, move the iron core and the elastic component that resets sets up the apron with decide between the iron core.

The invention has the beneficial effects that: the coil is electrified, the fixed iron core and the movable iron core are magnetized, the movable iron core and the fixed iron core are attracted, the movable iron core drives the connecting piece to descend, the reset elastic piece is compressed, and after the coil is powered off, the reset elastic piece rebounds to reset the movable iron core, so that the movable iron core drives the connecting piece to reciprocate and drives the camera to lift. The electromagnetic switch device provided by the invention has the advantages of simple structure, simple processing and assembly of parts and low cost.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of an electromagnetic switching device according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1 in one embodiment (the direction indicated by the arrow is a cutting direction)

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1 in another embodiment (the direction indicated by the arrow is the sectional direction).

100. An electromagnetic switching device; 1. a housing; 2. a coil; 31. fixing an iron core; 32. a movable iron core; 4. a restoring elastic member; 5. a connecting member; 311. a guide convex column; 301. a guide groove; 302. a first accommodating groove; 303. a second accommodating groove; 51. buckling; 52. a connecting rod; 101. a through hole; 6. a support; 61. a sleeve; 62. an end wall; 7. a damping member; 10. an accommodating cavity; 11. a housing main body; 12. a cover plate; 111. a bottom wall; 112. a side wall.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1 and 2, an electromagnetic switching device 100 is provided, which includes a housing 1, a stator disposed in the housing 1, and a mover movable relative to the stator, wherein the stator includes a stator core 31 fixed to the housing 1 and a cylindrical coil 2 fixed in the housing 1, and the stator core 31 is disposed in the coil 2; the mover comprises a movable iron core 32 which is arranged in the coil 2 and positioned on one side of the fixed iron core 31, the coil 2 is sleeved on the peripheries of the fixed iron core 31 and the movable iron core 32, a reset elastic part 4 is connected between the fixed iron core 31 and the movable iron core 32, the coil 2 drives the movable iron core 32 to move relative to the fixed iron core 31 along the axial direction, and the reset elastic part 4 provides restoring force for the movable iron core 32; a first accommodating groove 302 for accommodating one end of the reset elastic piece 4 is formed in the end surface of the movable iron core 32 facing the fixed iron core 31, and a second accommodating groove 303 for accommodating the other end of the reset elastic piece 4 is formed in the end surface of the fixed iron core 31 facing the movable iron core 32; the electromagnetic switching device further comprises a connecting piece 5 connected to the movable iron core 32 and having an end extending to the outside of the housing for connecting an external device, wherein the connecting piece 5 is displaced by the movable iron core 32.

Decide iron core 31 and fix to shell 1, coil 2's axial direction and 5 lifting direction of connecting piece are on the same direction, switch on coil 2, decide iron core 31 and move iron core 32 and all be magnetized, both attract mutually, it drives connecting piece 5 decline (the direction of right in figure 2) to move iron core 32, the elastic component 4 that resets is compressed, coil 2 outage back, thereby the elastic component 4 that resets will move iron core 32 and rebound (the direction of left in figure 2), thereby realize moving iron core 32 and drive 5 reciprocating motion of connecting piece, it goes up and down to drive internal component. The electromagnetic switch device 100 provided by the invention has the advantages of simple structure, simple processing and assembly of parts and low cost. One end of the elastic resetting element 4 is limited by the first containing groove 302, and the other end of the elastic resetting element 4 is limited by the second containing groove 303, so that the elastic resetting element 4 is not easy to deviate in the deformation process.

Preferably, a guiding convex pillar 311 is convexly disposed at one end of the movable iron core 32 facing the fixed iron core 31, and a guiding groove 301 matched with the guiding convex pillar 311 is concavely disposed on the fixed iron core 31.

The guiding convex column 311 is matched with the guiding groove 301, and plays a role in positioning the mutual position of the movable iron core 32 and the fixed iron core 31 and guiding the movement of the movable iron core 32.

It will be appreciated that the positions of the guide studs 311 and guide slots 301 may be interchanged. The positioning function and the guiding function can be realized.

In another embodiment, referring to fig. 3, a damping member 7 is disposed between a side of the movable core 32 facing away from the fixed core 31 and the housing 1. The damper 7 can limit the amplitude of vibration and prevent the stopper core 32 from colliding with the housing 1 to generate noise.

Preferably, the return elastic member 4 is a coil spring.

Preferably, the connecting member 5 includes a latch 51 and a connecting rod 52 connecting the latch 51 and the movable iron core 32, and the housing 1 is provided with a through hole 101 for the connecting rod 52 to pass through. The latch 51 is used to mount the internal components, and the connecting rod 52 is used to connect the latch 51 and the plunger 32.

The internal component can be a camera, the latch 51 is annular, a latch hook fastened with the latch 51 is installed on the camera, and the camera and the latch 51 can also be fixedly connected through threads.

Preferably, the electromagnetic switching device 100 further includes a bracket 6 for fixing the coil 2, the bracket 6 includes a sleeve 61 sleeved outside the fixed iron core 31 and the movable iron core 32, and two end walls 62 respectively extending radially outward from edges of two ports of the sleeve 61, and the coil 2 is sleeved outside the sleeve 61 and sandwiched between the two end walls 62.

The holder 6 is used for mounting the coil 2, the shape of the sleeve 61 is adapted to the shape of the coil 2, and the thickness of the end wall 62 in the axial direction of the sleeve 61 is greater than or equal to the thickness of the coil 2.

Preferably, the housing 1 includes a housing main body 11 having a housing chamber 10 for housing the coil 2, the stationary core 31, and the movable core 32, and a cover plate 12 covering the housing main body 11, and the through hole 101 is opened in the cover plate 12. The provision of the cover 12 facilitates the opening of the housing 1 for inspection and maintenance of the internal components.

Preferably, the housing main body 11 includes a bottom wall 111 opposite to and spaced apart from the cover plate 12, and a side wall 112 extending from an edge of the bottom wall 111 toward the cover plate, the stationary core 31 is fixed to the bottom wall 111, and the movable core 32 and the return elastic member 4 are disposed between the cover plate 12 and the bottom wall 111.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims

1. An electromagnetic switch device comprises a shell, a stator arranged in the shell and a rotor capable of moving relative to the stator, and is characterized in that the stator comprises a fixed iron core fixed on the shell and a cylindrical coil fixed in the shell, and the fixed iron core is arranged in the coil; the mover comprises a movable iron core which is arranged in the coil and positioned on one side of the fixed iron core, the coil is sleeved on the periphery of the fixed iron core and the periphery of the movable iron core, a reset elastic piece is connected between the fixed iron core and the movable iron core, the coil drives the movable iron core to move relative to the fixed iron core along the axial direction, and the reset elastic piece provides restoring force for the movable iron core; a first accommodating groove for accommodating one end of the reset elastic piece is formed in the end face, facing the fixed iron core, of the movable iron core, and a second accommodating groove for accommodating the other end of the reset elastic piece is formed in the end face, facing the movable iron core, of the fixed iron core; the electromagnetic switch device also comprises a connecting piece which is connected to the movable iron core, and the tail end of the connecting piece extends to the outer side of the shell to be used for connecting an external device, and the connecting piece is driven by the movable iron core to generate displacement; the electromagnetic switch device further comprises a support for fixing the coil, the support comprises a sleeve sleeved outside the fixed iron core and the movable iron core and two end walls extending outwards along the radial direction from the edges of two ports of the sleeve, and the coil is sleeved outside the sleeve and clamped between the two end walls; the shell comprises a shell body and a cover plate covering the shell body, the shell body comprises a bottom wall opposite to the cover plate and arranged at intervals, the end walls are fixed on the cover plate and the bottom wall respectively, and the fixed iron core and the movable iron core are completely contained in the sleeve.

2. The electromagnetic switching device of claim 1, wherein: the movable iron core faces towards one end of the fixed iron core, a guide convex column is arranged on the upper portion of the fixed iron core in a protruding mode, and a guide groove matched with the guide convex column is formed in the upper portion of the fixed iron core in a protruding mode.

3. The electromagnetic switching device of claim 1, wherein: the fixed iron core faces towards one end of the movable iron core, a guide convex column is arranged on the upper portion of the end of the movable iron core in a protruding mode, and a guide groove matched with the guide convex column is arranged on the upper portion of the movable iron core in a protruding mode.

4. The electromagnetic switching device of claim 1, wherein: one side of the movable iron core, which is far away from the fixed iron core, and a damping piece is arranged between the shell and the movable iron core.

5. The electromagnetic switching device according to any one of claims 1 to 4, wherein: the reset elastic piece is a spiral spring.

6. The electromagnetic switching device of claim 1, wherein: the connecting piece comprises a bolt buckle and a connecting rod for connecting the bolt buckle with the movable iron core, and a through hole for the connecting rod to pass through is formed in the shell.

7. The electromagnetic switching device of claim 6, wherein: the shell main body comprises an accommodating cavity used for accommodating the coil, the fixed iron core and the movable iron core, and the through hole is formed in the cover plate.

8. The electromagnetic switching device of claim 7, wherein: the shell main part includes certainly the edge of diapire court the lateral wall that the apron extends, it fixes to decide the iron core the diapire, move the iron core and the elastic component that resets sets up the apron with decide between the iron core.