CN216991555U

CN216991555U - A test fixture for NFC antenna distance

Info

Publication number: CN216991555U
Application number: CN202220262396.7U
Authority: CN
Inventors: 王鹏; 项念
Original assignee: Shenzhen Xinbinuo Communication Technology Co ltd
Current assignee: Shenzhen Xinbinuo Communication Technology Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-07-19
Anticipated expiration: 2032-02-09

Abstract

The utility model relates to a test fixture for NFC antenna distance, which comprises a bottom plate, wherein a fixed plate is fixedly connected to one side of the top end of the bottom plate, a radio frequency receiver is arranged on one side of the fixed plate, a moving column is fixedly connected to one side of the top end of the bottom plate, an electric push rod is arranged at one side of the moving column at the top end of the bottom plate, the output end of the electric push rod is fixedly connected with the moving column, a threaded groove is formed in the moving column, the moving column is rotatably connected with a threaded block through a rotating shaft in the threaded groove, a connecting column is fixedly connected to the top end of the threaded block, a connecting block is fixedly connected to the top end of the connecting column, a rotating ring is rotatably connected to the outside of the connecting block through the rotating shaft, a rotating disc is fixedly connected to the outside of the rotating ring, clamping mechanisms are arranged on two sides of the rotating disc, and a torsion spring is arranged between the rotating ring and the connecting block. According to the utility model, the rotating disc capable of conveniently adjusting the height is arranged, so that the device improves the testing precision.

Description

A test fixture for NFC antenna distance

Technical Field

The utility model relates to the technical field of test fixtures for NFC antenna distance, in particular to a test fixture for NFC antenna distance.

Background

The NFC antenna is based on the RFID technology, adopts transformer common coupling matching as a hardware processing scheme for communication, completes the verification of a data transmission process through a communication instruction of a processor, is successfully designed and manufactured through RFID modulation processing of a software and hardware environment and adjustment of a matching circuit, has the best effect, and is required to consider the effectiveness and stability of key performance indexes of a high polymer material and an anti-interference material, meanwhile, the stability of a manufacturing process is the key of consistent product performance indexes, and the perfect targeted evaluation and inspection equipment is the guarantee of product quality.

Through retrieval, when an existing NFC antenna is tested, an NFC antenna module to be detected is generally clamped and fixed in detection equipment, and the effective distance of the antenna is determined by translating the NFC antenna, but the existing detection equipment may have a height difference between a radio frequency receiver and the NFC antenna, so that the detection precision is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a test fixture for NFC antenna distance.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a test fixture for NFC antenna distance comprises a bottom plate, a fixed plate is fixedly connected with one side of the top end of the bottom plate, a radio frequency receiver is arranged on one side of the fixed plate, a movable column is fixedly connected on one side of the top end of the bottom plate, an electric push rod is arranged at one side of the movable column at the top end of the bottom plate, the output end of the electric push rod is fixedly connected with the movable column, a thread groove is arranged in the moving column, the moving column is rotatably connected with a thread block in the thread groove through a rotating shaft, the top end of the thread block is fixedly connected with a connecting column, the top end of the connecting column is fixedly connected with a connecting block, the outside of the connecting block is rotatably connected with a rotating ring through a rotating shaft, the outside of the rotating ring is fixedly connected with a rotating disc, the NFC antenna comprises a rotating disc and is characterized in that clamping mechanisms are arranged on two sides of the rotating disc, a torsion spring is arranged between a rotating ring and a connecting block, and an NFC antenna module is arranged inside each clamping mechanism.

Further, fixture includes the grip block, the shifting chute has all been seted up to the rolling disc both sides, the grip block is in shifting chute department and rolling disc sliding connection.

Furthermore, a spring strip is arranged between one end of the clamping plate and the rotating disc.

Furthermore, one side of the bottom end of the bottom plate is provided with a graduated scale.

Furthermore, one side of the bottom end of the movable column is fixedly connected with a pointer.

Furthermore, a rubber pad is fixedly connected to one side of the top end of the clamping plate.

The utility model has the beneficial effects that:

1. through setting up the radio frequency receiver, the swivel becket, the rolling disc, spliced pole and thread groove, when the difference in height between altitude mixture control rolling disc and the radio frequency receiver according to NFC antenna module's needs, at first deflect the rolling disc, the rolling disc drives the thread piece and deflects inside the thread groove, the thread piece rises in the inside rotation of thread groove simultaneously, NFC antenna module follows the rolling disc and carries out the adjustment of height this moment, after height adjustment finishes, the reverse deflection rolling disc, the rolling disc is owing to be equipped with ratchet wheel mechanism between inside and the connecting block, thereby when deflecting the rolling disc, the spliced pole can not follow and rotate together, make the rolling disc just right with the radio frequency receiver keeps, the test accuracy of device has been improved.

2. Through setting up the spring bar, scale, pointer and grip block, when needs carry out the centre gripping to NFC antenna module, at first pull open the grip block of both sides, the grip block opens this moment to in will waiting to detect NFC antenna module put into the grip block, thereby utilize the elasticity of spring bar with NFC antenna module centre gripping, improved device centre gripping NFC antenna module's convenience.

3. Through setting up the rubber pad, when the fixed NFC antenna module of grip block centre gripping, the rubber pad has increased the frictional force between NFC antenna module and the grip block to the centre gripping stability of device has been improved.

Drawings

Fig. 1 is a front view of a test fixture for NFC antenna distance proposed in embodiment 1;

fig. 2 is a front view of a rubber pad of the test fixture for NFC antenna distance proposed in embodiment 1.

In the figure: the device comprises a base plate 1, an electric push rod 2, a moving column 3, a rotating disc 4, a clamping plate 5, a spring strip 6, a moving groove 7, a rotating ring 8, a connecting block 9, a connecting column 10, a threaded groove 11, a pointer 12, a scale 13, a fixing plate 14, a radio frequency receiver 15 and a rubber pad 16.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1, a test fixture for NFC antenna distance, including a base plate 1, a fixing plate 14 is bonded to one side of the top end of the base plate 1, a radio frequency receiver 15 is disposed on one side of the fixing plate 14, a moving column 3 is bonded to one side of the top end of the base plate 1, an electric push rod 2 is disposed at one side of the moving column 3 at the top end of the base plate 1, an output end of the electric push rod 2 is bonded to the moving column 3, a threaded groove 11 is formed in the moving column 3, the moving column 3 is rotatably connected to a threaded block inside the threaded groove 11 through a rotating shaft, a connecting column 10 is bonded to the top end of the threaded block, a connecting block 9 is bonded to the top end of the connecting column 10, a rotating ring 8 is rotatably connected to the outside of the connecting block 9 through a rotating shaft, a ratchet mechanism is disposed between the rotating ring 8 and the connecting block 9, a rotating disc 4 is bonded to the outside of the rotating ring 8, clamping mechanisms are disposed on both sides of the rotating disc 4, a torsion spring is disposed between the rotating ring 8 and the connecting block 9, inside NFC antenna module that is equipped with of fixture, when the difference in height between altitude mixture control rolling disc 4 and the radio frequency receiver 15 according to NFC antenna module as required, at first rolling disc 4 deflects, rolling disc 4 drives the screw thread piece and deflects in thread groove 11 is inside, the screw thread piece rises in the inside rotation of thread groove 11 simultaneously, NFC antenna module follows rolling disc 4 and carries out the adjustment of height this moment, after height adjustment finishes, reverse deflection rolling disc 4, rolling disc 4 is owing to be equipped with ratchet wheel mechanism between inside and the connecting block 9, thereby when deflecting rolling disc 4, spliced pole 10 can not follow and rotate together, make rolling disc 4 and radio frequency receiver 15 keep just right, the test accuracy of device has been improved.

Wherein, fixture includes grip block 5, shifting chute 7 has all been seted up to 4 both sides of rolling disc, grip block 5 is in 7 departments of shifting chute and 4 sliding connection of rolling disc, be equipped with spring bar 6 between 5 one end of grip block and the

rolling disc

4, 1 bottom one side of bottom plate is equipped with

scale

13, 3 bottom one side bonds of removal post has pointer 12, when needs carry out the centre gripping to NFC antenna module, at first pull open the grip block 5 of both sides, grip block 5 opens this moment, and the NFC antenna module who will wait to detect puts into grip block 5, thereby utilize the elasticity of spring bar 6 with NFC antenna module centre gripping, the convenience of device centre gripping NFC antenna module has been improved.

The working principle is as follows: when the altitude difference between height adjustment rolling disc 4 and the radio frequency receiver 15 according to NFC antenna module is required, at first rolling disc 4 deflects, rolling disc 4 drives the screw thread piece and deflects inside thread groove 11, the screw thread piece rises when the screw thread piece is inside rotatory in thread groove 11 simultaneously, NFC antenna module follows rolling disc 4 and carries out the adjustment of height this moment, after the altitude mixture control finishes, reverse deflection rolling disc 4, rolling disc 4 is owing to be equipped with ratchet wheel mechanism between inside and connecting block 9, thereby when deflecting rolling disc 4, spliced pole 10 can not follow and rotate together, make rolling disc 4 and radio frequency receiver 15 keep just right, the test accuracy of device has been improved.

When needs carry out the centre gripping to NFC antenna module, at first pull open the grip block 5 of both sides, grip block 5 opens this moment to in putting into grip block 5 with the NFC antenna module who waits to detect, thereby utilize the elasticity of spring bar 6 with NFC antenna module centre gripping, improved the convenience of device centre gripping NFC antenna module.

Example 2

Referring to fig. 2, in order to increase the practicability of the device, compared with embodiment 1, a rubber pad 16 is bonded to one side of the top end of the clamping plate 5, and when the clamping plate 5 clamps and fixes the NFC antenna module, the rubber pad 16 increases the friction force between the NFC antenna module and the clamping plate 5, thereby improving the clamping stability of the device.

When the holding plate 5 holds and fixes the NFC antenna module, the rubber pad 16 increases the friction between the NFC antenna module and the holding plate 5, thereby improving the holding stability of the device.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a test fixture for NFC antenna distance, includes bottom plate (1), its characterized in that, bottom plate (1) top one side fixedly connected with fixed plate (14), fixed plate (14) one side is equipped with radio frequency receiver (15), bottom plate (1) top one side fixedly connected with removes post (3), bottom plate (1) top is equipped with electric putter (2) in one side department of removing post (3), and the output and the removal post (3) fixed connection of electric putter (2), threaded groove (11) have been seted up to removal post (3) inside, and removal post (3) are connected with the thread piece through the pivot rotation in the inside of thread groove (11), and thread piece top fixedly connected with spliced pole (10), spliced pole (10) top fixedly connected with connecting block (9), connecting block (9) outside is connected with swivel becket (8) through the pivot rotation, a ratchet wheel mechanism is arranged between the rotating ring (8) and the connecting block (9), a rotating disc (4) is fixedly connected to the outer portion of the rotating ring (8), clamping mechanisms are arranged on two sides of the rotating disc (4), a torsion spring is arranged between the rotating ring (8) and the connecting block (9), and an NFC antenna module is arranged inside the clamping mechanisms.

2. The test fixture for the NFC antenna distance according to claim 1, wherein the clamping mechanism comprises a clamping plate (5), moving grooves (7) are formed in two sides of the rotating disc (4), and the clamping plate (5) is connected with the rotating disc (4) in a sliding mode at the moving grooves (7).

3. Test fixture for NFC antenna distance according to claim 2 characterized in that a spring bar (6) is provided between one end of the clamping plate (5) and the rotating disc (4).

4. A test fixture for NFC antenna distance according to claim 3 characterized in that a graduated scale (13) is provided on the bottom end side of the base plate (1).

5. Test fixture for NFC antenna distance according to claim 4 characterized in that a pointer (12) is fixedly connected to the bottom side of the moving column (3).

6. The test fixture for NFC antenna distance according to claim 5, characterized in that a rubber pad (16) is fixedly connected to one side of the top end of the clamping plate (5).