CN214953857U

CN214953857U - Electromagnetic compatibility test room

Info

Publication number: CN214953857U
Application number: CN202121277861.6U
Authority: CN
Inventors: 胡鉴清
Original assignee: Jiangsu Sushi Intelligent Equipment Testing Co ltd
Current assignee: Jiangsu Sushi Intelligent Equipment Testing Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-30
Anticipated expiration: 2031-06-08

Abstract

The utility model provides an electromagnetic compatibility test room, which comprises a test room body, wherein a test platform and an antenna assembly are arranged in the test room body; the test platform comprises a rotating base, a test table surface is arranged on the rotating base, a groove is arranged on the test table surface, a clamping mechanism is arranged in the groove, the clamping mechanism comprises a clamping width adjusting assembly, a lifting cylinder is arranged on the clamping width adjusting assembly, and an overturning clamping assembly is arranged on the lifting cylinder; the overturning clamping assembly comprises a lifting block, an overturning block, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein two ends of the first connecting rod are respectively connected with one end of the second connecting rod and the lifting block, the other end of the second connecting rod is connected with the overturning block, two ends of the third connecting rod are respectively connected with one end of the fourth connecting rod and the overturning block, the other end of the fourth connecting rod is connected with the lifting block, the first connecting rod is connected with the middle section of the second connecting rod, and a driving motor is further arranged on the lifting block; the antenna assembly includes an antenna mount, and a test antenna.

Description

Electromagnetic compatibility test room

Technical Field

The utility model belongs to the technical field of the electromagnetic compatibility test, concretely relates to between electromagnetic compatibility test.

Background

Electromagnetic compatibility emc (electromagnetic compatibility) refers to the ability of a device or system to function properly in its electromagnetic environment without creating an inability to withstand electromagnetic disturbances to anything in that environment. With the increasing width of the electromagnetic interference radiation frequency band and the increasing badness of the electromagnetic environment of various electronic products, various countries have correspondingly made EMC regulations about electronic products, such as CCC mandatory certification in china. The products can be sold in the country after corresponding regulation and certification, so that the EMC test needs to be carried out on the produced electronic products, the EMC detection is greatly influenced by sites, and the site requirements are most strict particularly by the electromagnetic radiation emission, radiation reception and radiation sensitivity tests. When an existing EMC testing device is used for testing, equipment to be tested can only be placed on a testing platform, the fitting area between the equipment to be tested and the testing platform is large, so that a test result to be tested is influenced to a certain extent, and a product to be tested is likely to deviate along with the movement of the testing platform, so that the determination of a testing distance is influenced. For example, publication No. CN204462286U discloses an electromagnetic compatibility test room, which includes a shielding darkroom, a testing device, and a testing platform, wherein the testing device includes an antenna tower disposed in the shielding darkroom, and a receiver disposed outside the shielding darkroom, the antenna tower includes an antenna support and an antenna capable of being lifted and lowered and disposed on the antenna support, the antenna receives a radiation signal radiated by a product to be tested on the testing platform, and transmits the radiation signal to the receiver, and the receiver receives the radiation signal and analyzes the radiation signal.

Therefore, it is desirable to provide an electromagnetic compatibility testing chamber to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an between electromagnetic compatibility test, can hold up the equipment that awaits measuring surely, reduce the area of contact between the equipment that awaits measuring and the test platform, the maximize reduces the influence of test platform to the testing process.

The utility model provides a following technical scheme:

the electromagnetic compatibility test room is characterized by comprising a test room body, wherein a test platform and an antenna assembly are arranged in the test room body;

the test platform comprises a rotating base, a test table surface is arranged on the rotating base, a groove is formed in the test table surface, a clamping mechanism is movably arranged in the groove and comprises a clamping width adjusting assembly, a lifting cylinder is arranged on the clamping width adjusting assembly, and an overturning clamping assembly is arranged on the lifting cylinder; the overturning clamping assembly comprises a lifting block, an overturning block, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein two ends of the first connecting rod are movably connected with one end of the second connecting rod and the lifting block respectively, the other end of the second connecting rod is movably connected with the overturning block, two ends of the third connecting rod are movably connected with one end of the fourth connecting rod and the overturning block respectively, the other end of the fourth connecting rod is movably connected with the lifting block, the middle section of the first connecting rod and the middle section of the second connecting rod are movably connected, and a driving motor for driving the first connecting rod to rotate is further arranged on the lifting block;

the antenna assembly comprises an antenna bracket, an antenna mounting seat is arranged on the antenna bracket and capable of ascending and descending, and a test antenna is detachably arranged on the antenna mounting seat.

Preferably, the clamping width adjusting assembly comprises a driving gear, a second driving motor, a first rack and a second rack; the second driving motor is arranged in the groove, a sliding rail is further arranged in the groove, the driving gear is arranged on a driving shaft of the driving motor, and the first rack and the second rack are arranged on two sides of the driving gear and meshed with the driving gear; and a sliding block is arranged below the first rack and the second rack, and the sliding block is movably arranged in the sliding rail.

Preferably, one end of each of the first rack and the second rack is provided with a support rod, and the first rack and the second rack are centrosymmetric with respect to the driving gear; the lifting cylinder is arranged at the middle section of the supporting rod, and the lifting block is arranged on the lifting cylinder.

Preferably, the first link, the second link, the third link and the fourth link are connected by rivets.

Preferably, a clamping groove is formed in the lifting block and matched with the edge of the overturning block.

Preferably, the lifting block is provided with an anti-skid rubber pad.

Preferably, the antenna mounting base is movably mounted on the antenna bracket through an electric sliding rail or a chain wheel and chain.

Preferably, the test antenna is detachably mounted on the antenna mounting base through a bolt.

The utility model has the advantages that:

1. the rotation of the first connecting rod is driven by the driving motor to drive the second connecting rod, the third connecting rod and the fourth connecting rod to rotate, so that the overturning block is driven to overturn upwards or rotate back to a position which is parallel to the upper surface of the lifting block, and the switching of a clamping preparation state and the cancellation of clamping is realized; the second driving motor drives the driving gear to rotate, and the first rack and the second rack are driven to move along the sliding rail in a meshed mode, so that the overturning clamping assembly clamps and releases the equipment to be tested; the overturning and holding assembly is driven to ascend and descend by extending and shortening a telescopic rod of the lifting cylinder, so that the height (namely the distance between the overturning and holding assembly and a test table board) of the device to be tested is controlled, and meanwhile, the upper surface of the overturning and holding assembly is controlled to protrude out of the test table board or be accommodated in the groove;

2. the test bench has the advantages that the traditional mode of directly placing the equipment to be tested on the test bench for testing is supported, meanwhile, the mode of clamping and testing the equipment to be tested by being clamped and pushed up can be supported, so that the contact area between the test bench and the equipment can be reduced as much as possible while the equipment to be tested is guaranteed to be stable, and the test accuracy is guaranteed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of part A of the present invention;

FIG. 3 is a schematic view of the A-part clamping state of the present invention;

FIG. 4 is a schematic top view of the clamping width adjustment assembly of the present invention;

fig. 5 is a schematic diagram of the enlarged structure of the part B of the present invention.

Detailed Description

As shown in the figures, the electromagnetic compatibility test room provided by the utility model comprises a test room body 1, wherein a test platform and an antenna assembly are arranged in the test room body 1;

the test platform comprises a rotating base 2, a test table top 3 is arranged on the rotating base 2, a groove 4 is arranged on the test table top 3, a clamping mechanism is movably arranged in the groove 4, the clamping mechanism comprises a clamping width adjusting assembly, a lifting cylinder 5 is arranged on the clamping width adjusting assembly, and an overturning clamping assembly is arranged on the lifting cylinder 5; the clamping width adjusting assembly comprises a driving gear 15, a second driving motor 18, a first rack 16 and a second rack 17; the second driving motor 18 is arranged in the groove 4, a sliding rail is further arranged in the groove 4, the driving gear 15 is arranged on a driving shaft of the driving motor, and the first rack 16 and the second rack 17 are arranged on two sides of the driving gear 15 and meshed with the driving gear 15; and a sliding block is arranged below the first rack 16 and the second rack 17 and movably arranged in the sliding rail. One end of the first rack 16 and one end of the second rack 17 are respectively provided with a support rod 19, and the first rack 16 and the second rack 17 are in central symmetry with respect to the driving gear 15; the lifting cylinder 5 is arranged at the middle section of the support rod 19, and the lifting block 6 is arranged on the lifting cylinder 5.

Upset centre gripping subassembly is including lifting piece 6, upset piece 7, first connecting rod 8, second connecting rod 9, third connecting rod 10 and fourth connecting

rod

11, 8 both ends of first connecting rod respectively with 9 one end of second connecting rod and lift 6 mobilizable connections of piece, the 9 other ends of second connecting rod and 7 mobilizable connections of upset piece, 10 both ends of third connecting rod respectively with 11 one end of fourth connecting rod and 7 mobilizable connections of upset piece, the 11 other ends of fourth connecting rod and lift 6 mobilizable connections of piece, mobilizable connection in first connecting rod 8 and the 9 middle sections of second connecting rod, first connecting rod 8, second connecting rod 9, pass through rivet connection between third connecting rod 10 and the fourth connecting rod 11. And a clamping groove is arranged on the lifting block 6 and is matched with the edge of the overturning block 7. The lifting block 6 is provided with an anti-skid rubber pad. The lifting block 6 is also provided with a driving motor for driving the first connecting rod 8 to rotate.

The antenna module includes antenna boom 12, and what go up the liftable on the antenna boom 12 is equipped with antenna mount pad 13, crosses bolt detachable on the antenna mount pad 13 and is equipped with test antenna 14. The antenna mounting base 13 is movably mounted on the antenna bracket 12 through an electric slide rail or a chain wheel chain.

The working principle is as follows: the rotation of the first connecting rod 8 is driven by the driving motor to drive the second connecting rod 9, the third connecting rod 10 and the fourth connecting rod 11 to rotate, so that the overturning block 7 is driven to overturn upwards or rotate back to a position which is parallel to the upper surface of the lifting block 6, and the switching between a clamping preparation state and a clamping cancellation state is realized; the second driving motor 18 drives the driving gear 15 to rotate, and the first rack 16 and the second rack 17 are driven to move along the sliding rail in a meshed mode, so that clamping and releasing of the turnover clamping assembly to the equipment to be tested are achieved; extension and shortening through lift cylinder 5's telescopic link drive the upset and add the lift of holding the subassembly, and then the height of control await measuring equipment (promptly with test table face's distance), the upset of control simultaneously adds and holds subassembly upper surface protrusion in test table face 3 or accomodate recess 4 to realize centre gripping test mode and the ordinary switching of putting test mode.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The electromagnetic compatibility test room is characterized by comprising a test room body (1), wherein a test platform and an antenna assembly are arranged in the test room body (1);

the test platform comprises a rotating base (2), a test table top (3) is arranged on the rotating base (2), a groove (4) is formed in the test table top (3), a clamping mechanism is movably arranged in the groove (4), the clamping mechanism comprises a clamping width adjusting assembly, a lifting cylinder (5) is arranged on the clamping width adjusting assembly, and an overturning clamping assembly is arranged on the lifting cylinder (5); the overturning clamping assembly comprises a lifting block (6), an overturning block (7), a first connecting rod (8), a second connecting rod (9), a third connecting rod (10) and a fourth connecting rod (11), wherein the two ends of the first connecting rod (8) are respectively movably connected with one end of the second connecting rod (9) and the lifting block (6), the other end of the second connecting rod (9) is movably connected with the overturning block (7), the two ends of the third connecting rod (10) are respectively movably connected with one end of the fourth connecting rod (11) and the overturning block (7), the other end of the fourth connecting rod (11) is movably connected with the lifting block (6), the middle sections of the first connecting rod (8) and the second connecting rod (9) are movably connected, and a driving motor for driving the first connecting rod (8) to rotate is further arranged on the lifting block (6);

the antenna module comprises an antenna bracket (12), an antenna mounting seat (13) capable of ascending and descending is arranged on the antenna bracket (12), and a test antenna (14) is detachably arranged on the antenna mounting seat (13).

2. The emc testing room of claim 1, wherein said clamping width adjusting assembly comprises a driving gear (15), a second driving motor (18), a first rack (16) and a second rack (17); the second driving motor (18) is arranged in the groove (4), a sliding rail is further arranged in the groove (4), the driving gear (15) is arranged on a driving shaft of the driving motor, and the first rack (16) and the second rack (17) are arranged on two sides of the driving gear (15) and meshed with the driving gear (15); and a sliding block is arranged below the first rack (16) and the second rack (17), and the sliding block is movably arranged in the sliding rail.

3. The electromagnetic compatibility test room according to claim 2, wherein one end of each of the first rack (16) and the second rack (17) is provided with a support rod (19), and the first rack (16) and the second rack (17) are in central symmetry with respect to the driving gear (15); the lifting cylinder (5) is arranged at the middle section of the supporting rod (19), and the lifting block (6) is arranged on the lifting cylinder (5).

4. The emc testing room of claim 1, wherein said first connecting rod (8), said second connecting rod (9), said third connecting rod (10) and said fourth connecting rod (11) are connected by rivets.

5. The electromagnetic compatibility test room of claim 1, wherein the lifting block (6) is provided with a clamping groove, and the clamping groove is matched with the edge of the turnover block (7).

6. The emc testing room of claim 1, wherein said lifting block (6) is provided with an anti-skid rubber pad.

7. The emc testing room of claim 1, wherein said antenna mounting base (13) is movably mounted on said antenna bracket (12) by means of an electric slide or a chain wheel.

8. The emc testing room of claim 1, wherein said test antenna (14) is detachably mounted on said antenna mounting base (13) by means of bolts.