CN205353440U

CN205353440U - In put motor

Info

Publication number: CN205353440U
Application number: CN201521113946.5U
Authority: CN
Inventors: 王建华
Original assignee: Shanghai BL Electronics Co Ltd
Current assignee: Cyprus Shanghai electronic Limited by Share Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-06-29
Anticipated expiration: 2025-12-29

Abstract

The utility model discloses an in put motor, its characterized in that iron -clad is square shell structure, square shell structure's centre be equipped with with lens carrier lateral surface complex lens opening, four angle inboards of square shell structure set up the magnetite, set up the spring between lens carrier and the iron -clad, set up down the spring between lens carrier and the base, set up the boss on four angles of base, be provided with the reference column on the boss, down the spring includes two half circle ring spring silks, and a gusset plate is all connected to the one end of each half circle ring spring silk, the middle part of half circle ring spring silk also sets up a gusset plate, sets up the locating hole on each gusset plate, and the locating hole that lower spring passes through on the gusset plate is installed on the reference column of base boss, and lower spring is inboard to be connected with lens carrier. The utility model has the advantages of the carrier is fixed through upper and lower spring, suspends in the centre, can control lens carrier through the electric current that leads to the entry control coil and reciprocate, reduces the time of focusing.

Description

A kind of mid-motor

Technical field

This utility model relates to lens driver, is specifically related to a kind of be applied on the equipment such as photographing unit, video camera or the mobile phone with camera function to drive camera lens to move thus the mid-motor focused.

Background technology

Along with the functional diversities of digital product, equipped with the digital equipment of video camera or photographing unit, such as mobile phone, multimedia player etc., obtain high speed development and extensive use.Above-mentioned video camera or photographing unit, it will usually adopt the camera lens of focus adjustable or auto-focusing, the process regulated is then the position changing camera lens, is used for driving camera lens to move usually with driving motor.The optical zoom driver focal length by adjustable lens position change battery of lens, thus reaching the effect of zoom.

Its driving device focused of traditional photographing unit generally includes motor, gear, the component such as cam and connecting rod forms, the utility model application that application number is CN201210402795.X discloses a kind of machinery for high-pixel mobile phone lens, include the fixing cylinder supporting positioning action, cam canister and first, two, three groups of frames and shell and groups of motors, this groups of motors includes focusing motor and zoom motor, it belongs to miniature high-precision stepper motor, stable drive, accurate positioning, repeatable precision is high, described first, two groups of frames are arranged in fixing cylinder, described cam canister is enclosed within fixing cylinder, described first, the two groups of frames are spacing by cam canister and fixing cylinder and lead, one end of described 3rd group of frames is located in fixing cylinder, the other end surely stretches out fixing cylinder and is connected with focusing motor and by focusing motor driving, lower movement, described zoom motor drives cam canister to rotate, the rotation of cam canister drives first, the two groups of frames are made relative upper, lower movement.

Described first, along being respectively equipped with first under the frame of two groups of frames, second guide shaft group, first is had at described cam canister inner surface, second zoom curved groove group, the barrel of fixing cylinder has first, second straight-line groove group, first guide shaft group of described first group of frame 3 enters in the first zoom curved groove group corresponding on cam canister through the first straight-line groove group on fixing cylinder, second guide shaft group of described second group of frame enters in the second zoom curved groove corresponding on cam canister through the second straight-line groove group on fixing cylinder, first, second guide shaft group is first, can only go up in second straight-line groove group, lower movement, when cam canister left-right rotation, first, second guide shaft group is first, along with the track of zoom curved groove moves in second zoom curved groove group, and first, under second straight-line groove group effect, first, the two groups of frames are made relative upper, lower movement, realize optical zoom function；The 3rd group of described frames are provided with a hole, location and a screwed hole, hole, location is positioned on fixing cylinder by axle, screw rod on screwed hole and focusing motor matches, when focusing revolution, under the effect of screw rod, the hole, location of the 3rd group of frames is positioned on fixing cylinder 1 by axle, therefore the 3rd group of frames can only do upper and lower movement, it is achieved automatic focusing function.

The outside lower end of described cam canister is provided with gear ring, described zoom motor has been additionally provided with the gear train of transmission gear shift effect, make the motor gear being located on zoom motor axle by under middle travelling gear effect, by the gear ring on driving gear drives cam canister, make cam canister rotate and thus drive first and second group of frame to do relative moving up and down, this gear train has high transmission ratio---and gear ratio is up to 24, and low noise---noise is lower than 40Db, and high efficiency---efficiency reaches 96%.First, second zoom wire casing suite of described cam canister each includes three equally distributed zoom curved grooves, first, second guide shaft group of first and second group of frame, also three equally distributed guide shafts are each included, each guide shaft enters in corresponding zoom curved groove, form a stable drive, the curvilinear guide system of accurate positioning, when system multisection type optical zoom, it is ensured that the optical zoom precision of system.

Utility model content

It is more stable that the purpose of this utility model is to provide a kind of operation, more rapid mid-motor of focusing.

To achieve these goals, the technical solution of the utility model is: a kind of mid-motor, including base, ferrum shell with base engagement setting, lens carrier it is provided with in iron-clad, coil it is arranged with outside lens carrier, it is characterized in that iron-clad is square casing structure, the centre of described square casing structure is provided with the lens opening coordinated with lens carrier lateral surface, inside four angles of described square casing structure, Magnetitum is set, between described lens carrier and iron-clad, spring is set, lower spring is set between lens carrier and base, four angles of described base arrange boss, boss is provided with locating dowel, described lower spring includes two semi-circular shape spring silks, one end of each semi-circular shape spring silk is all connected with a gusset plate, the other end is then disposed adjacent with the gusset plate of second half annular spring silk one end, two semi-circular shape spring silks are oppositely arranged formation cirque structure, and leave gap between two semi-circular shape spring silks, the middle part of described semi-circular shape spring silk is also provided with a gusset plate, each gusset plate arranges hole, location, lower spring is arranged in the locating dowel of base boss by the hole, location on gusset plate, it is connected with lens carrier inside lower spring.

According to preferred embodiment of the present utility model, described iron-clad includes end face, four sides being connected with described end face, end face is provided with lens opening, opening is formed between the bottom of four sides of described iron-clad, and junction, described two adjacent side bottoms of iron-clad is upwardly formed recess, the arranged outside flange at described four angles of base, the bottom recess of four sides of described iron-clad is shelved on the flange outside four angles of base.

According to preferred embodiment of the present utility model, arranging spring fastener in described iron-clad, the outside of described upper spring is square structure, and four angles of upper spring are fixed on the spring fastener in iron-clad, the inner side of upper spring is provided with circular hole, and the bottom surface of described upper spring contacts with described lens carrier.

The lens opening place of described iron-clad upwardly extends the oblique flange extended out of formation.

The principle of optical zoom motor is the principle by faraday's lefft-hand rule, and hot-wire coil produces magnetic field, and produces active force between the magnetic field of Magnetitum, completes the promotion to lens carrier.The utility model has the advantage of that carrier is fixed by upper lower spring, be suspended in centre, lens carrier can be controlled move up and down by passing into the electric current of control coil, reduce focusing time.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model one embodiment.

Fig. 2 is the explosion figure of Fig. 1.

Fig. 3 is lower spring and base connection diagram.

Detailed description of the invention

Below in conjunction with accompanying drawing and example, this utility model is elaborated.

Figure includes: base 1, lower spring 2, lens carrier 3, coil 4, Magnetitum 5, upper spring 6, iron-clad 7, boss 8, locating dowel 9, gusset plate 10, semi-circular shape spring silk 11, positions hole 12, flange 13.

As depicted in figs. 1 and 2, a kind of mid-motor, including base 1, the iron-clad 7 being equipped with base 1, lens carrier 3 it is provided with in iron-clad 7, coil 4 it is arranged with outside lens carrier 3, it is characterized in that iron-clad 7 is for square casing structure, the centre of described square casing structure is provided with the lens opening coordinated with lens carrier 3 lateral surface, inside four angles of described square casing structure, Magnetitum 5 is set, between described lens carrier 3 and iron-clad 7, spring 6 is set, lower spring 2 is set between lens carrier 3 and base 1, four angles of described base 1 arrange triangle boss 8, boss 8 is provided with locating dowel 9, outside locating dowel 9, boss raises up formation step, described lower spring 2 includes two semi-circular shape spring silks 11, one end of each semi-circular shape spring silk 11 is all connected with a gusset plate 10, the other end is then disposed adjacent with the gusset plate 10 of second half annular spring silk 11 one end, two semi-circular shape spring silks 11 are oppositely arranged formation cirque structure, and leave gap between two semi-circular shape spring silks, the middle part of described semi-circular shape spring silk is also provided with a gusset plate 10, each gusset plate 10 arranges hole 12, location, lower spring 2 is arranged in the locating dowel 9 of base boss 8 by the hole 12, location on gusset plate, it is arranged in lens carrier inside lower spring.

According to preferred embodiment of the present utility model, described iron-clad 2 includes end face, four sides being connected with described end face, end face is provided with lens opening, opening is formed between the bottom of four sides of described iron-clad 7, and junction, described two adjacent side bottoms of iron-clad is upwardly formed recess, the arranged outside flange 13 at described four angles of base, the bottom recess of four sides of described iron-clad is shelved on the flange 13 outside four angles of base.

According to preferred embodiment of the present utility model, arranging spring fastener in described iron-clad 7, the outside of described upper spring is square structure, and four angles of upper spring 6 are fixed on the spring fastener in iron-clad, the inner side of upper spring 6 is provided with circular hole, and the bottom surface of described upper spring 6 contacts with described lens carrier 3.

Described iron-clad stretches out from lens opening place, and formation is upward extends out flange 14 to what extend out, and anti-interference is higher.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that this utility model is embodied as being confined to these explanations above-mentioned.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to.

Claims

1. a mid-motor, including base, ferrum shell with base engagement setting, lens carrier it is provided with in iron-clad, coil it is arranged with outside lens carrier, it is characterized in that iron-clad is square casing structure, the centre of described square casing structure is provided with the lens opening coordinated with lens carrier lateral surface, inside four angles of described square casing structure, Magnetitum is set, between described lens carrier and iron-clad, spring is set, lower spring is set between lens carrier and base, four angles of described base arrange boss, boss is provided with locating dowel, described lower spring includes two semi-circular shape spring silks, one end of each semi-circular shape spring silk is all connected with a gusset plate, the other end is then disposed adjacent with the gusset plate of second half annular spring silk one end, two semi-circular shape spring silks are oppositely arranged formation cirque structure, and leave gap between two semi-circular shape spring silks, the middle part of described semi-circular shape spring silk is also provided with a gusset plate, each gusset plate arranges hole, location, lower spring is arranged in the locating dowel of base boss by the hole, location on gusset plate, it is connected with lens carrier inside lower spring.

2. by the mid-motor described in claim 1, it is characterized in that: described iron-clad includes end face, four sides being connected with described end face, end face is provided with lens opening, opening is formed between the bottom of four sides of described iron-clad, and junction, described two adjacent side bottoms of iron-clad is upwardly formed recess, the arranged outside flange at described four angles of base, the bottom recess of four sides of described iron-clad is shelved on the flange outside four angles of base.

3. by the mid-motor described in claim 2, it is characterized in that: spring fastener is set in described iron-clad, the outside of described upper spring is square structure, four angles of upper spring are fixed on the spring fastener in iron-clad, the inner side of upper spring is provided with circular hole, and the bottom surface of described upper spring contacts with described lens carrier.

4. by the mid-motor described in claim 3, it is characterised in that: described iron-clad stretches out from lens opening place, and formation is upward extends out flange to what extend out.