CN212677173U

CN212677173U - Darkroom structure for OTA far and near field test

Info

Publication number: CN212677173U
Application number: CN202021694959.7U
Authority: CN
Inventors: 袁俊
Original assignee: Changzhou Maisien Electronic Technology Co ltd
Current assignee: Changzhou Maisien Electronic Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-09
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a darkroom structure is used in test of OTA far and near field, including rectangle box, first connecting door, second connecting door, pull ring, hinge, first fixed screw, wave absorption plate, connection pad, second fixed screw, shock attenuation post, spliced pole, gyro wheel support, gyro wheel and damping spring. The utility model has the advantages that: first connecting door, the second is connected the door and is connected with the rectangle box through the hinge and is the rotary type, be convenient for open and shut of connecting door, the rectangle box is the roll formula through gyro wheel and ground and is connected, the removal of the rectangle box of being convenient for, be connected through the pivot between gyro wheel support and the spliced pole, and gyro wheel support is universal rotation through the pivot on the horizontal direction with the spliced pole and is connected, the rectangle box of being convenient for turns to when removing, the shock attenuation post is elastic connection through damping spring and spliced pole, guarantee can effectively shock attenuation to it when the rectangle box removes.

Description

Darkroom structure for OTA far and near field test

Technical Field

The utility model relates to a darkroom structure specifically is a darkroom structure is used in OTA far and near field test, belongs to darkroom structure technical field.

Background

The CTIA sets up the relevant standards of the OTA, the OTA test emphasizes the test of the radiation performance of the whole mobile phone, and gradually becomes a test item which is emphasized and approved by mobile phone manufacturers, the radiation performance of the whole mobile phone is more and more concerned in the radio frequency performance test of the mobile phone at present, the radiation performance reflects the final emission and receiving performance of the mobile phone, and at present, two methods are mainly used for inspecting the radiation performance of the mobile phone: one method is to judge the radiation performance of the antenna, and is a traditional antenna test method at present, which is called passive test; the other is to test the radiation power and the receiving sensitivity of the mobile phone in a special microwave darkroom, which is called active test.

Therefore, a darkroom structure for OTA far and near field testing is needed to meet the current market demand, although various darkroom structures are produced on the current market, generally speaking, a lot of common defects still exist, firstly, most of the existing darkrooms for testing are large in size and heavy in weight, so that the darkrooms cannot be moved integrally, secondly, no damping springs are arranged between the connecting rollers of the existing darkrooms for testing, so that the darkrooms for testing cannot be damped when being moved, and thirdly, the bottom rollers of the existing darkrooms for testing cannot be rotated universally, so that the darkrooms for testing are inconvenient to turn when being moved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a darkroom structure is used in testing of OTA far and near field in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a darkroom structure for OTA far and near field testing comprises a rectangular box body, a first connecting door, a second connecting door, a pull ring, a hinge, a first fixing screw, a wave absorbing plate, a connecting disc, a second fixing screw, a damping column, a connecting column, a roller bracket, a roller and a damping spring; the rectangular box body forms a main body structure of the darkroom structure for testing, the first connecting door is connected to the left side of the front end of the rectangular box body through a hinge, the second connecting door is connected to the right side of the front end of the rectangular box body through a hinge, the pull rings are respectively and vertically welded and fixed on the front surfaces of the first connecting door and the second connecting door, the first fixing screws are screwed and locked at four corners of the hinge, the wave absorbing plate is attached and fixed on the side wall of the inner cavity of the rectangular box body, the connecting disc is fixed at four corners of the bottom of the rectangular box body through the second fixing screws, the top end of the damping column is fixed at the center of the bottom of the connecting disc, the bottom end of the damping column is connected in the inner cavity of the connecting column, the connecting column is connected to the bottom of the damping column, the roller support is fixed at the, and the upper end and the lower end of the damping column are respectively welded and fixed with the bottom of the connecting column and the bottom of the damping column.

Preferably, in order to facilitate the opening and closing of the connecting door, the first connecting door and the second connecting door are rotatably connected with the rectangular box body through hinges.

Preferably, in order to facilitate the movement of the rectangular box body, the rectangular box body is connected with the ground in a rolling mode through rollers.

Preferably, for the convenience of turning to of rectangle box when removing, be connected through the pivot between gyro wheel support and the spliced pole, and gyro wheel support is universal rotation connection through the pivot on the horizontal direction with the spliced pole.

Preferably, in order to guarantee that effective shock absorption can be carried out to the rectangle box when removing, the shock attenuation post is elastic connection through damping spring and spliced pole.

Preferably, in order to facilitate the installation and the dismantlement of shock attenuation post and rectangle box, the connection pad is the detachable connection of revolving soon through second fixed screw and rectangle box.

The utility model has the advantages that: this darkroom structural design is reasonable, first connecting door, the second connecting door is the rotary type through hinge and rectangle box and is connected, be convenient for open and shut of connecting door, the rectangle box is the roll formula through gyro wheel and ground and is connected, the removal of the rectangle box of being convenient for, be connected through the pivot between gyro wheel support and the spliced pole, and gyro wheel support is universal rotation through the pivot on the horizontal direction with the spliced pole and is connected, the rectangle box of being convenient for turns to when removing, the shock attenuation post is elastic connection through damping spring and spliced pole, guarantee to carry out effective shock attenuation to it when the rectangle box removes, the connection pad is detachable wrong with the rectangle box through the fixed screw of second and is connected, be convenient for the installation and the dismantlement of shock attenuation post and rectangle box.

Drawings

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

FIG. 2 is a schematic view of the inside of the rectangular box body of the present invention;

FIG. 3 is a partial view of the roller of the present invention;

fig. 4 is a schematic sectional view of the connecting column of the present invention.

In the figure: 1. rectangular box, 2, first connecting door, 3, second connecting door, 4, pull ring, 5, hinge, 6, first fixed screw, 7, inhale ripples board, 8, connection pad, 9, second fixed screw, 10, shock attenuation post, 11, spliced pole, 12, gyro wheel support, 13, gyro wheel and 14, damping spring.

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 to 4, a darkroom structure for OTA distance and near field testing comprises a rectangular box body 1, a first connecting door 2, a second connecting door 3, a pull ring 4, a hinge 5, a first fixing screw 6, a wave-absorbing plate 7, a connecting plate 8, a second fixing screw 9, a shock-absorbing column 10, a connecting column 11, a roller bracket 12, a roller 13 and a shock-absorbing spring 14; the testing darkroom structure is characterized in that the rectangular box body 1 forms a main body structure of the testing darkroom structure, the first connecting door 2 is connected to the left side of the front end of the rectangular box body 1 through a hinge 5, the second connecting door 3 is connected to the right side of the front end of the rectangular box body 1 through a hinge 5, the pull rings 4 are vertically welded and fixed on the front surfaces of the first connecting door 2 and the second connecting door 3 respectively, the first fixing screws 6 are screwed and locked at four corners of the hinge 5, the wave absorbing plate 7 is attached and fixed on the side wall of the inner cavity of the rectangular box body 1, the connecting disc 8 is fixed at four corners of the bottom of the rectangular box body 1 through second fixing screws 9, the top end of the shock absorbing column 10 is fixed at the center of the bottom of the connecting disc 8, the bottom end of the shock absorbing column 11 is connected in the inner cavity of the connecting column 11, the connecting column 11 is connected to the, the damping spring 14 is located in the inner cavity of the connecting column 11, and the upper end and the lower end of the damping spring are respectively welded and fixed with the bottom of the connecting column 11 and the bottom of the damping column 10.

First connecting door 2, second connecting door 3 are the rotary type through hinge 5 and rectangle box 1 and are connected, are convenient for open and shut of connecting door, rectangle box 1 is the roll formula through gyro wheel 13 and ground and is connected, the removal of rectangle box 1 of being convenient for, be connected through the pivot between gyro wheel support 12 and the spliced pole 11, and gyro wheel support 12 is universal rotation through the pivot on the horizontal direction with spliced pole 11 and is connected, the rectangle box 1 of being convenient for turn to when removing, shock attenuation post 10 is elastic connection through damping spring 14 and spliced pole 11, guarantees to effectively cushion when rectangle box 1 removes it, connection pad 8 is detachable revolving with rectangle box 1 through second fixed screw 9 and revolves to be connected, the installation and the dismantlement of shock attenuation post 10 and rectangle box 1 of being convenient for.

The working principle is as follows: when using this OTA far and near field test to use darkroom structure, be the rotary type with rectangle box 1 through hinge 5 with first connecting door 2, second connecting door 3 earlier and be connected, be convenient for open and shut of connecting door, then be the detachable connection of revolving with connection pad 8 through second fixed screw 9 with rectangle box 1, when testing, can carry out OTA far and near field test to rectangle box 1 through gyro wheel 13, when removing, through damping spring 14 to rectangle box 1 realize effective shock attenuation can.

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

1. The utility model provides a darkroom structure is used in test of OTA far and near field which characterized in that: the damping device comprises a rectangular box body (1), a first connecting door (2), a second connecting door (3), a pull ring (4), a hinge (5), a first fixing screw (6), a wave absorbing plate (7), a connecting disc (8), a second fixing screw (9), a damping column (10), a connecting column (11), a roller support (12), a roller (13) and a damping spring (14); the testing darkroom structure is characterized in that the rectangular box body (1) forms a main body structure of the testing darkroom structure, the first connecting door (2) is connected to the left side of the front end of the rectangular box body (1) through a hinge (5), the second connecting door (3) is connected to the right side of the front end of the rectangular box body (1) through a hinge (5), the pull rings (4) are vertically welded and fixed on the front surfaces of the first connecting door (2) and the second connecting door (3) respectively, the first fixing screws (6) are screwed and locked at four corners of the hinge (5), the wave absorbing plate (7) is attached and fixed on the side wall of an internal cavity of the rectangular box body (1), the connecting disc (8) is fixed at four corners of the bottom of the rectangular box body (1) through second fixing screws (9), the top end of the damping column (10) is fixed at the center of the bottom of the connecting disc (8), and the bottom end of, the bottom at shock attenuation post (10) is connected in spliced pole (11), the bottom at spliced pole (11) is fixed in gyro wheel support (12), gyro wheel (13) joint space department between gyro wheel support (12), damping spring (14) are located spliced pole (11) inside cavity, and its upper and lower both ends respectively with the bottom of spliced pole (11) with the bottom welded fastening of shock attenuation post (10).

2. The darkroom structure for OTA near-far field test of claim 1, wherein: the first connecting door (2) and the second connecting door (3) are rotatably connected with the rectangular box body (1) through hinges (5).

3. The darkroom structure for OTA near-far field test of claim 1, wherein: the rectangular box body (1) is connected with the ground in a rolling mode through the idler wheels (13).

4. The darkroom structure for OTA near-far field test of claim 1, wherein: the roller support (12) is connected with the connecting column (11) through a rotating shaft, and the roller support (12) is connected with the connecting column (11) in a universal rotating mode in the horizontal direction through the rotating shaft.

5. The darkroom structure for OTA near-far field test of claim 1, wherein: the damping column (10) is elastically connected with the connecting column (11) through a damping spring (14).

6. The darkroom structure for OTA near-far field test of claim 1, wherein: the connecting disc (8) is detachably screwed and connected with the rectangular box body (1) through a second fixing screw (9).