CN213069041U - Simulation darkroom for EMC test - Google Patents

Abstract

The utility model discloses a simulation darkroom is used in EMC test, including display screen, darkroom chamber door, darkroom case, gyro wheel, shading strip of paper used for sealing, light screen, sliding belt, support frame, crank, cassette, fixed station, power, interior light screen and sound wave transmitter. The utility model has the advantages that: the gyro wheel makes things convenient for the bulk movement of this simulation darkroom, reduce the cost of darkroom, and guarantee that it remains stable when detecting, the shading strip of paper used for sealing effectively reduces the possibility that outside highlight got into from the gap department of this simulation darkroom, and guarantee the inside airtight environment of simulation darkroom, the light screen conveniently observes the distance between the inside product of darkroom and the sound wave transmitter, and prevent effectively that light from getting into from both sides, distance between the inside product of darkroom and the sound wave transmitter is conveniently controlled to smooth area and crank, reduce the cost of preparation and detection, the simplified operation mode.

Description

Simulation darkroom for EMC test

Technical Field

The utility model relates to a simulation darkroom specifically is a simulation darkroom is used in EMC test, belongs to EMC test technical field.

Background

The EMC test is also called electromagnetic compatibility (EMC), refers to the comprehensive evaluation of the interference level (EMI) and the anti-interference capability (EMS) of electronic products in the aspect of electromagnetic field, and is one of the most important indexes of product quality.

Although the application of the EMC test is relatively popular, and the types of simulation devices are various, the EMC test device still has some problems in the actual use process, firstly, most of the existing EMC test simulation chambers are carried out in a low-light environment, but even the low light sometimes influences the test accuracy, secondly, most of the existing EMC test simulation darkrooms are controlled electronically, the occupied area is large, the EMC test simulation darkrooms are difficult to move, the EMC test device is not convenient and fast to detect small products, thirdly, most of the existing EMC test simulation darkrooms control the distance, the angle and the like between products and sound waves through electronic equipment, and the detection cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simulation darkroom is used in EMC test just for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a simulation darkroom for EMC test comprises a display screen, a darkroom door, a darkroom box, rollers, a shading seal, a shading plate, a sliding belt, a support frame, a crank handle, a clamping seat, a fixed platform, a power supply, an inner shading plate and a sound wave emitter; the display screen is fixed on the door of the darkroom and is electrically connected with the power supply, the door of the darkroom is fixed on the darkroom box in a hinged mode, the darkroom box is of a cuboid cavity structure and is fixed on the support frame, the roller is arranged at the lower end of the support frame, the shading sealing strip is fixed at the joint of the darkroom box and the door of the darkroom, the shading plates are symmetrically arranged at two sides of the darkroom box, the slide belt is arranged between two rotating rollers of the support frame, the support frame is formed by splicing a plurality of steel plates and is fixed above the roller, the crank is connected on one rotating roller of the support frame and is positioned at the outer side of the support frame, the clamping seat is arranged inside the darkroom box and is positioned on the fixed table, the bottom of the fixed table is fixed on the upper surface of the slide belt, the power supply is arranged on the support frame, the, the acoustic transmitter is suspended inside the dark room box.

Preferably, for the convenience of the whole movement of this simulation darkroom, reduce the cost of darkroom, and guarantee that it remains stable when detecting, the gyro wheel passes through the mode of screwed connection and installs in the pivot of four stabilizer blades of support frame, and every gyro wheel size is unanimous to be equipped with the brake block.

Preferably, in order to effectively reduce the possibility that external strong light enters from the gap of the simulation darkroom and ensure the closed environment inside the simulation darkroom, the shading seal is fixed at the joint of the darkroom box and the darkroom box door and the closed seam of the two darkroom box doors in a bonding connection mode, and the surface material of the shading seal is light-tight.

Preferably, for the convenient distance between inside product of observation darkroom and the sound wave transmitter, and effectively prevent that light from getting into from both sides, the light screen passes through sliding connection's mode symmetry to be fixed on two sides of darkroom case, and the membrane that absorbs light all bonds in the inside and outside both sides of two light screens.

Preferably, for the convenient distance between inside product of control darkroom and the sound wave transmitter, reduce the cost of preparation and detection, simplify the mode of operation, the inside detection position mobile device of this simulation darkroom is constituteed jointly to smooth area and crank, and the crank is connected with the commentaries on classics roller of smooth area through screw thread swivelling joint's mode.

Preferably, in order to ensure a dark environment around the detection product and prevent the detection of the inside from being interfered by the missed light, the inner light shielding plate is arranged on the fixed station in a screw connection mode, the opening surface of the inner light shielding plate is aligned with the sound wave emitter, and the inner light shielding plate and the fixed station are both made of antimagnetic insulating plates.

The utility model has the advantages that: the simulation darkroom for the EMC test is reasonable in design, the rollers are installed on rotating shafts of four support legs of the support frame in a screw connection mode, each roller is consistent in size and is provided with a brake pad, so that the simulation darkroom can be conveniently moved integrally, the manufacturing cost of the darkroom is reduced, the rollers are guaranteed to be stable during detection, the shading seal is fixed at the joint of the darkroom box and the darkroom box door and the closed joint of the two darkroom box doors in a bonding connection mode, the surface material of the shading seal is light-tight, the possibility that external strong light enters from the joint of the simulation darkroom is effectively reduced, the closed environment inside the simulation darkroom is guaranteed, the shading plates are symmetrically fixed on two side surfaces of the darkroom box in a sliding connection mode, and light-absorbing films are bonded on the inner side and the outer side of the two shading plates, so that the distance between a product inside the darkroom and the sound wave emitter, this simulation darkroom inside detection position mobile device is constituteed jointly to draw runner and crank, and the crank is connected with the commentaries on classics roller of drawing runner through screw thread swivelling joint's mode, make things convenient for the distance between inside product of control darkroom and the sound wave transmitter, reduce the cost of preparation and detection, the simplified operation mode, interior light screen is settled on the fixed station through screwed connection's mode, sound wave transmitter is aimed at to its opening face, and interior light screen and fixed station both make by anti-magnetic insulation board, ensure to detect the peripheral dark environment of product, the light that prevents to have the omission causes the interference to inside detection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the back-side interior structure of the present invention.

In the figure: 1. display screen, 2, darkroom chamber door, 3, darkroom chamber, 4, gyro wheel, 5, shading strip of paper used for sealing, 6, light screen, 7, sliding band, 8, support frame, 9, crank, 10, cassette, 11, fixed station, 12, power, 13, interior light screen and 14, sound wave transmitter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a simulation darkroom for EMC testing includes a display screen 1, a darkroom door 2, a darkroom box 3, rollers 4, a light-shielding seal 5, a light-shielding plate 6, a slide belt 7, a support frame 8, a crank 9, a clamping seat 10, a fixing table 11, a power supply 12, an inner light-shielding plate 13 and a sound wave emitter 14; the display screen 1 is fixed on a darkroom box door 2 and is electrically connected with a power supply 12, the darkroom box door 2 is fixed on the darkroom box 3 in a hinged mode, the darkroom box 3 is of a cuboid cavity structure and is fixed on a support frame 8, rollers 4 are arranged at the lower end of the support frame 8, a shading seal 5 is fixed at the joint seam of the darkroom box 3 and the darkroom box door 2, shading plates 6 are symmetrically arranged at two sides of the darkroom box 3, a sliding belt 7 is arranged between two rotating rollers of the support frame 8, the support frame 8 is formed by splicing a plurality of steel plates and is fixed above the rollers 4, a hand crank 9 is connected on one rotating roller of the support frame 8 and is positioned at the outer side of the support frame 8, a clamping seat 10 is arranged inside the darkroom box 3 and is positioned on a fixed table 11, the bottom of the fixed table 11 is fixed on the upper surface of the sliding belt 7, the power supply, the inner shading plate 13 is arranged on the upper surface of the fixed platform 11 in a semi-surrounding structure, and the sound wave emitter 14 is suspended inside the darkroom box 3.

The rollers 4 are installed on the rotating shafts of the four support legs of the support frame 8 in a screw connection mode, each roller 4 is consistent in size and is provided with a brake pad, so that the whole movement of the simulation darkroom is facilitated, the manufacturing cost of the darkroom is reduced, and the stability of the simulation darkroom is guaranteed during detection, the shading seal 5 is fixed at the joint of the darkroom box 3 and the darkroom box door 2 and the closed joint of the two darkroom box doors 2 in a bonding connection mode, the surface material of the shading seal is light-tight, the possibility that external strong light enters from the joint of the simulation darkroom is effectively reduced, the closed environment inside the simulation darkroom is guaranteed, the shading plates 6 are symmetrically fixed on two sides of the darkroom box 3 in a sliding connection mode, light absorbing films are bonded on the inner side and the outer side of the two shading plates 6, the distance between a product inside the darkroom and the sound wave emitter 14 is conveniently observed, and light, this simulation darkroom inside detection position mobile device is constituteed jointly to smooth area 7 and hand crank 9, and hand crank 9 is connected with smooth area 7's commentaries on classics roller through screw thread swivelling joint's mode, makes things convenient for the distance between the inside product of control darkroom and the sound wave transmitter 14, reduces the cost of preparation and detection, simplifies the operation mode, interior light screen 13 is settled on fixed station 11 through screwed connection's mode, and sound wave transmitter 14 is aimed at to its opening face, and interior light screen 13 and fixed station 11 both make by diamagnetic insulation board, ensures to detect the peripheral dark environment of product, prevents that there is the light of omission to cause the interference to inside detection.

The working principle is as follows: when using this simulation darkroom is used in EMC test, at first open darkroom chamber door 2, install the electronic product who detects on the cassette 10 of fixed station 11, then close darkroom chamber door 2, and press the shading strip of paper used for sealing 5 and ensure that the laminating is inseparable, prevent the light infiltration, then turn on power 12, start sound wave transmitter 14 and carry out the analysis of detection to the product that detects, once detect the back, wave crank 9, make fixed station 11 remove along with smooth area 7, change the distance between product and the sound wave transmitter 14, detect once more, wherein can open the light screen 6 after once detecting the end and observe the distance between product and the sound wave transmitter 14, be convenient for obtain reliable detection data.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a simulation darkroom is used in EMC test which characterized in that: the device comprises a display screen (1), a darkroom box door (2), a darkroom box (3), rollers (4), a shading seal (5), a shading plate (6), a slide belt (7), a support frame (8), a hand crank (9), a clamping seat (10), a fixed platform (11), a power supply (12), an inner shading plate (13) and a sound wave emitter (14); the display screen (1) is fixed on a darkroom box door (2) and is electrically connected with a power supply (12), the darkroom box door (2) is fixed on the darkroom box (3) in a hinged mode, the darkroom box (3) is of a cuboid cavity structure and is fixed on a support frame (8), rollers (4) are arranged at the lower end of the support frame (8), shading sealing strips (5) are fixed at the joint of the darkroom box (3) and the darkroom box door (2), shading plates (6) are symmetrically arranged at two sides of the darkroom box (3), a sliding belt (7) is arranged between two rotating rollers of the support frame (8), the support frame (8) is spliced by a plurality of steel plates and is fixed above the rollers (4), a crank (9) is connected on one rotating roller of the support frame (8) and is positioned at the outer side of the support frame (8), and a clamping seat (10) is arranged inside the darkroom box (3), the sound wave emitter is located on a fixing table (11), the bottom of the fixing table (11) is fixed to the upper surface of a sliding belt (7), a power source (12) is installed on a supporting frame (8), an inner light shielding plate (13) is installed on the upper surface of the fixing table (11) in a semi-surrounding structure, and the sound wave emitter (14) is hung inside a darkroom box (3).

2. The simulation darkroom for the EMC test of claim 1, wherein: the rollers (4) are installed on the rotating shafts of the four support legs of the support frame (8) in a screw connection mode, and each roller (4) is consistent in size and provided with a brake pad.

3. The simulation darkroom for the EMC test of claim 1, wherein: the shading seal (5) is fixed at the joint of the darkroom box (3) and the darkroom box door (2) and the closed seam of the two darkroom box doors (2) in a bonding connection mode, and the surface material is light-tight.

4. The simulation darkroom for the EMC test of claim 1, wherein: the shading plates (6) are symmetrically fixed on two side faces of the darkroom box (3) in a sliding connection mode, and light absorbing films are bonded on the inner side and the outer side of each of the two shading plates (6).

5. The simulation darkroom for the EMC test of claim 1, wherein: the sliding belt (7) and the hand crank (9) jointly form the device for detecting the position in the simulation darkroom, and the hand crank (9) is connected with the rotating roller of the sliding belt (7) in a threaded rotary connection mode.

6. The simulation darkroom for the EMC test of claim 1, wherein: the inner shading plate (13) is arranged on the fixed platform (11) in a screw connection mode, the opening surface of the inner shading plate is aligned to the sound wave emitter (14), and the inner shading plate (13) and the fixed platform (11) are both made of antimagnetic insulating plates.

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