CN104991341A - Automatic filter box - Google Patents

Abstract

The invention provides a fully automatic filter box, which includes a box body, and a light hole is arranged on the front and rear panels of the box body, and the electric shutter is located on the inner wall of the front plate of the box body and is configured to control the light through the light hole; the filter box also includes A filter or attenuator that is located within the enclosure and moves horizontally. The invention can improve the degree of automation of testing and can be applied to various testing systems.

Description

Automatic filter box

technical field

The invention relates to a performance testing technology of an optoelectronic device, in particular to a fully automatic filter box.

Background technique

In the performance test system of electronic devices, filter boxes are often used to select the required band with filters or attenuate the intensity of light in a certain proportion with attenuators. The currently used filter boxes are all manual, and the operation is cumbersome and inefficient when doing mass testing. Therefore, a fully automatic filter box is invented, and the filter box can be controlled on the interface of the test software.

Contents of the invention

The purpose of the present invention is to provide a fully automatic filter box, which can improve the degree of automation of testing and can be applied to various testing systems.

A fully automatic filter box, including a box body, with a light hole on the front and rear panels of the box body, and an electric shutter located on the inner wall of the front panel of the box body and configured to control the light passing through the light hole; the filter box also includes a A filter or attenuator that moves horizontally.

Using the above-mentioned fully automatic filter box, the electric shutter includes a housing, and coil electromagnets, hinges, shrapnel, magnets, levers, and baffles located in the housing. The magnet cooperates with the coil electromagnet; the upper part of the hinge is provided with a magnet, and the lower part is fixed on the inner wall of the housing, and the upper part and the lower part of the hinge are bent; The connecting pin of the driving rod and the inner wall of the housing, the connecting pin is placed in the limit groove of the inner wall of the housing; one end of the elastic piece is fixed on the lower section of the hinge, and the other end is fixed on the driving rod; the blocking piece has two petals, The upper ends of the two flaps are overlapped, and the upper ends of each flap are rotatably connected to the inner wall of the housing through different pin shafts; the upper ends of each flap are provided with pin holes, and the connecting pins pass through the pin holes.

Using the above-mentioned fully automatic filter box, the filter or attenuation slide plate is set perpendicular to the incident light or with an included angle of 76.6° with the incident light.

Compared with the prior art, the present invention has the following advantages: (1) the switch of the light hole can be automatically controlled through the electric shutter, and the operation is simple and the efficiency is high; (2) the magnetism generated after the electromagnetic coil is energized is used to attract the magnet , drive the lever to drive the two baffles to rotate in the opposite direction, and control the switch of the light hole. stray light.

The present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a sectional view of A-A in Fig. 1 .

Fig. 3 is a sectional view of B-B in Fig. 1 .

Fig. 4 is a schematic structural diagram of the housing of the motorized shutter of the present invention.

Fig. 5 is a schematic diagram of the internal structure of the electric shutter of the present invention.

Detailed ways

Referring to Fig. 1, Fig. 2 and Fig. 3, a fully automatic filter box is characterized in that it includes a box, and an electric shutter, a filter or an attenuator located inside the box. The box body is composed of an upper base plate 16, a lower base plate 18, a front base plate 12, a rear base plate 17, a left base plate 11 and a right base plate 4. An electric shutter 14 is fixed at the light hole, and the electric shutter 14 controls the switch of the light hole on the front bottom plate. The filter or attenuation sheet moves horizontally under the drive of the horizontal moving device.

4 and 5, the electric shutter 14 includes a housing 14-1, and a coil electromagnet 14-3, a hinge 14-4, a shrapnel 14-5, a magnet 14-6, and a dial located in the housing 14-1. Bar 14-7, blocking plate 14-9. The housing 14 - 1 is fixed on the front bottom plate 12 of the box through the connecting plate 13 . The housing 14-1 is provided with dimming holes 14-2 on the front and rear panels, and the dimming holes 14-2 cooperate with the light-through holes on the front bottom plate 12 of the cabinet; the magnet 14-6 is located Above the coil electromagnet 14-3, when the coil electromagnet 14-3 is energized, the coil electromagnet 14-3 generates a magnetic force to attract the magnet 14-6 to the coil electromagnet 14-3; the hinge 14-4 has elasticity, Its upper section is fixed magnet 14-6, and the lower section is fixed on the inner wall of housing 14-1, and the upper section and the lower section of hinge 14-4 are bent at 90°; 14-4 The front end of the upper section is connected, and the front end is provided with a connecting pin 14-71 perpendicular to the driving rod 14-7 and the inner wall of the housing 14-1, and the connecting pin is placed in the limiting groove 14-11 of the inner wall of the housing 14-1 In the middle; one end of the shrapnel 14-5 is fixed on the lower part of the hinge 14-4, and the other end is fixed on the driving rod 14-7; the blocking piece 14-9 has two petals, and the upper ends of the two petal blocking pieces 14-9 are overlapped. And the upper end of each petal is respectively connected to the inner wall of the housing 14-1 through the first pin 14-81 and the second pin 14-82; the upper end of each petal baffle 14-9 is provided with a pin hole, and the connecting pin 14-71 through the pin hole. When the coil electromagnet 14-3 is energized, the coil electromagnet 14-3 generates a magnetic force, and the magnet 14-6 is attracted to the coil electromagnet 14-3, and the upper front end of the hinge 14-4 moves downward, driving the driving rod 14-7 Moving down, the front end of the lever 14-7 drives the two flaps 14-9 to rotate clockwise or counterclockwise around the first pin shaft 14-81 and the second pin shaft 14-82 respectively, opening the light hole 12-1; When the coil electromagnet 14-3 is powered off, the shrapnel 14-5 recovers from the deformed state, drives the upper front end of the hinge 14-4 to move upward, drives the driving lever 14-7 to move upward, and the front end of the driving lever 14-7 drives the two petals The blocking piece 14-9 rotates counterclockwise or clockwise around the first pin shaft 14-81 and the second pin shaft 14-82 respectively to close the light hole 12-1.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the horizontal moving device includes a slide bar 3 , a bevel gear set 8 , a slide plate 15 , a lead screw 10 , and a motor 6 . The motor 6 is fixed on the right bottom plate 4 of the box body through the motor fixing plate 5, and sealed with the motor sealing cover 7; the slide bar 3 is arranged at the lower end of the box body, and the long axis of the slide bar 3 is perpendicular to the incident light and parallel to the bottom of the box body Bottom plate 18, both ends are respectively fixedly connected with the inner wall of the box; the screw 10 is arranged at the upper end of the box, the long axis of the screw 10 is parallel to the long axis of the slide bar 3, and one end of the screw 10 is connected with the inner wall of the box through the bearing 9 , the other end is connected with the first bevel gear in the bevel gear set 8; the second bevel gear in the bevel gear set 8 is connected with the rotating shaft of the motor 6; The seat is connected, and the lower end is slidingly connected with the sliding rod 3; the filter or attenuation sheet is covered on the light hole of the sliding plate 15. The slide bar 3 is evenly distributed on the lower end of the box body, the lead screw 10 is evenly distributed on the upper end of the box body, and the slide plate 15 is arranged on different slide bars 3 and lead screw 10, so that the slide plate 15 can be arranged perpendicular to the incident light, or can be Set a [70°, 80°] angle with the incident light. The angle between the slide plate 15 and the incident light is 76.6°. Each filter or attenuator is located on a slide plate 15. At the beginning, the slide plate 15 is located at the right end of the box body. When in use, the slide plate 15 is driven to move to the left side of the box body through the motor 6, the bevel gear set 8 and the lead screw 10. Move to the path of the light; when not in use, move back to the right end of the box body through the reverse rotation of the motor 6. Different light can be obtained through filters or attenuators that do not understand the parameters.

Referring to Fig. 1, Fig. 2 and Fig. 3, the fully automatic filter box also includes a support rod that moves up and down in the vertical direction, and the support rod carries the box body. The support rod includes a base 1 and a telescopic rod body 2 located on the base 1 and connected to the box.

Claims (8)

1. A fully automatic filter box, characterized in that, comprising: box, The light holes located on the front and rear panels of the cabinet, An electric shutter (14) located on the inner wall of the front panel of the box and configured to control the light passing through the light hole, A filter or attenuator that is located within the enclosure and moves horizontally. 2. The fully automatic filter box according to claim 1, characterized in that the electric shutter (14) comprises a housing (14-1), and a coil electromagnet (14-1) located in the housing (14-1) 3), hinge (14-4), shrapnel (14-5), magnet (14-6), lever (14-7), retainer (14-9); Dimming holes (14-2) are provided on the front and rear panels of the housing (14-1), and the dimmer holes (14-2) cooperate with the light-through holes on the front bottom plate (12) of the box body ; The magnet (14-6) cooperates with the coil electromagnet (14-3); The upper section of the hinge (14-4) is provided with a magnet (14-6), the lower section is fixed on the inner wall of the housing (14-1), and the upper section and the lower section of the hinge (14-4) are bent; The rear end of the driving lever (14-7) is connected to the front end of the upper section of the hinge (14-4), and the front end is provided with a connecting pin (14-71) perpendicular to the driving lever (14-7) and the inner wall of the housing (14-1). ), the connecting pin is placed in the limiting groove (14-11) of the inner wall of the housing (14-1); One end of the shrapnel (14-5) is fixed to the lower section of the hinge (14-4), and the other end is fixed to the driving lever (14-7); The baffle (14-9) has two petals, the upper ends of the two baffles (14-9) are overlapped, and the upper ends of each petal are rotatably connected to the inner wall of the housing (14-1) through different pin shafts; The upper end of each flap (14-9) is provided with a pin hole, and the connecting pin (14-71) passes through the pin hole. 3. The fully automatic filter box according to claim 1, characterized in that the filter or attenuator moves horizontally in the box through a horizontal moving device, and the horizontal moving device includes a slide bar (3), a bevel gear Group (8), slide plate (15), lead screw (10), motor (6); The slide bar (3) is arranged at the lower end of the box body, the long axis of the slide bar (3) is perpendicular to the incident light and parallel to the lower bottom plate of the box body, and the two ends are respectively fixedly connected to the inner wall of the box body; The lead screw (10) is arranged at the upper end of the box, the long axis of the lead screw (10) is parallel to the long axis of the slide bar (3), and one end of the lead screw (10) is connected with the inner wall of the box through a bearing, and the other end is connected with the bevel gear The first bevel gear connection in the group (8); The second bevel gear in the bevel gear set (8) is connected with the rotating shaft of the motor (6); The slide plate (15) is provided with a light hole, the upper end is connected with the nut seat of the lead screw (10), and the lower end is slidably connected with the slide bar (3); The filter or attenuation sheet is covered on the light hole of the sliding plate (15). 4. The fully automatic filter box according to claim 3, characterized in that the slide plate (15) is arranged perpendicular to the incident light. 5. The fully automatic filter box according to claim 3, characterized in that there is an angle between the sliding plate (15) and the incident light. 6. The fully automatic filter box according to claim 5, characterized in that the angle between the sliding plate (15) and the incident light is [70°, 80°]. 7. The fully automatic filter box according to claim 6, characterized in that the angle between the slide plate (15) and the incident light is 76.6° 8 . The fully automatic filter box according to claim 1 , further comprising a support rod carrying the box, and the support rod moves up and down in a vertical direction.