CN112476278A

CN112476278A - GPS positioning chip precision testing device

Info

Publication number: CN112476278A
Application number: CN202011302552.XA
Authority: CN
Inventors: 李新龙
Original assignee: Shanghai Xifu Industrial Co ltd
Current assignee: Shanghai Xifu Industrial Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-03-12

Abstract

The invention discloses a GPS positioning chip accuracy testing device which comprises a testing board, wherein the bottom surface of the testing board is fixedly connected with a bottom board, the top surface of the bottom board is fixedly connected with a heat dissipation paste, heat conducting wires are fixedly connected inside the inner wall of the heat dissipation paste, the heat dissipation paste is arranged right below a mounting seat, the top of the testing board is fixedly connected with moisture absorption cotton outside the heat dissipation paste, the top surface of the moisture absorption cotton is fixedly connected with a gasket, the surface of the gasket is flush with the surface of the heat dissipation paste, air holes are arranged on the surface of the gasket in a latticed manner, the air holes are communicated with the inside of the moisture absorption cotton, and a cushion pad is fixedly connected inside the inner wall of the; the bottom plate protects and surveys test panel and simultaneously absorbs the heat that gives off in the GPS chip test process with the heat dissipation subsides, and the moisture absorption cotton absorbs the moist gas that contains in surveying test panel operational environment with the bleeder vent, and the inside blotter of bottom plate inner wall can effectively absorb produced vibrations in the testing arrangement handling to protection testing arrangement's safety.

Description

GPS positioning chip precision testing device

Technical Field

The invention relates to the technical field of chip testing, in particular to a GPS positioning chip precision testing device.

Background

The GPS chip is a special technology chip for positioning, is one of key parts of a GPS system, determines how to express the actual use performance of a receiving terminal, determines the performance difference of different GPS products to a great extent according to the quality of the GPS chip, so that the GPS core chip is directly related to the technical indexes of the GPS products and the future development trend, and the existing GPS positioning chip precision testing device on the market still has various defects and cannot meet the requirements of production and life;

although the device and the method for performing precision detection on the blood pressure measuring chip disclosed by the publication No. CN107045101A achieve precision detection on the chip, the problem that the existing GPS chip usually employs a test board for precision detection, but the test board belongs to a PCB board and has a large number of electronic components on the surface, which has high requirements for storage, transportation and operation environments is not solved.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the GPS positioning chip accuracy testing device, the bottom plate protects the testing board, meanwhile, the heat dissipated in the GPS chip testing process is absorbed by the heat dissipation paste, the heat is respectively and uniformly distributed by the heat conduction wires in the inner wall of the heat dissipation paste, the gasket prevents the heat dissipation paste from bulging to cause the testing board to shake, the moisture absorption cotton absorbs moisture contained in the working environment of the testing board through the air holes, and the buffer cushion in the inner wall of the bottom plate can effectively absorb the vibration generated in the carrying process of the testing device, so that the safety of the testing device is protected.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a GPS fixes a position chip precision testing arrangement, includes surveys the test panel, the top fixed surface who surveys the test panel is connected with the mount pad, the top port of mount pad covers and is fixed with fixed lid, survey the bottom fixed surface who surveys the test panel and is connected with the bottom plate, the top fixed surface of bottom plate is connected with the heat dissipation subsides, the inside fixedly connected with heat conduction wire of inner wall that the heat dissipation was pasted, the heat dissipation pastes the setting under the mount pad, the top of surveying the test panel is at the outside fixedly connected with moisture absorption cotton that the heat dissipation pasted, the cotton top fixed surface of moisture absorption is connected with the gasket, the surface of gasket and the mutual parallel and level in surface that the heat dissipation pasted, the bleeder vent has been seted up to the surface latticed of gasket, the bleeder vent communicates with the cotton inside each other that absorbs moisture, the.

Preferably, the bottom surface of the bottom plate is provided with a containing groove, and a sucker is arranged in the containing groove.

Preferably, the port of the sucking disc faces the port of the accommodating groove, and the sucking disc and the inner wall of the top of the accommodating groove are fixedly connected with a fixed spring.

Preferably, a square groove is formed in the inner wall of the port of the accommodating groove, and a limiting plate is arranged inside the square groove.

Preferably, the outer end of the limiting plate is fixed inside the accommodating groove, and the bottom of the inner end of the limiting plate is fixedly connected with the guide pillar.

Preferably, the inner wall of the top of the square groove is provided with a guide rail, and the guide pillar is fixed inside the guide rail.

Preferably, the inner end surface of the guide post and the inner end inner wall of the guide rail are fixedly connected with a return spring, and the return spring is axially fixed in the guide rail.

Preferably, the bottom surface of the bottom plate is fixedly connected with anti-skid lines, and the surface contour of the anti-skid lines is of a wave-shaped structure.

Preferably, the bottom plate is provided with air passing grooves on the inner side of the heat dissipation sticker, and the air passing grooves are criss-cross and communicated with each other in the bottom plate.

Preferably, the side of bottom plate encircles the equidistance and has seted up the vent, communicate each other between vent and the groove of crossing wind.

Compared with the prior art, the invention can achieve the following beneficial effects:

1. through the designed bottom plate, the bottom plate protects the test board and absorbs heat dissipated in the GPS chip test process through the heat dissipation paste, the heat conducting wires in the inner wall of the heat dissipation paste respectively homogenize the heat, the gasket prevents the heat dissipation paste from bulging to cause the test board to shake, the moisture absorption cotton absorbs moisture contained in the working environment of the test board through the air holes, and the buffer cushion in the inner wall of the bottom plate can effectively absorb shock generated in the test device carrying process, so that the safety of the test device is protected;

2. through the designed bottom plate, the limiting plate is fixed at the port of the containing groove under the pushing of the reset spring, the limiting plate blocks and fixes the sucker inside the containing groove, the limiting plate compresses the reset spring to be contained inside the square groove, the sucker is popped out under the pushing of the fixed spring after losing the blocking, the testing device is firmly fixed with the table top through the adsorption of the sucker, and the sucker can be adjusted according to actual requirements;

3. through the bottom plate of design, outside air gets into inside the wind groove via the vent, and the inside air current of wind groove is pasting the quick circulation of side surface in the heat dissipation, and the heat guarantee operation is walked for the heat dissipation subsides to the circulation of air in-process, and the cotton absorbent damp of moisture absorption is taken away to the circulation of air in-process simultaneously.

Drawings

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

FIG. 2 is a top view of the base plate of the present invention;

FIG. 3 is a schematic view of a gasket of the present invention;

FIG. 4 is a bottom plan view of the base plate of the present invention;

FIG. 5 is a schematic view of the chuck of the present invention;

FIG. 6 is a schematic view of a limiting plate according to the present invention;

fig. 7 is a cross-sectional view of the base plate of the present invention.

Wherein: 1. a test board; 2. a mounting seat; 3. a fixed cover; 4. a base plate; 5. a heat dissipation patch; 6. heat conducting wires; 7. air holes are formed; 8. a vent; 9. an air passing groove; 10. moisture absorption cotton; 11. a gasket; 12. a limiting plate; 13. a receiving groove; 14. a suction cup; 15. anti-skid lines; 16. fixing the spring; 17. a square groove; 18. a return spring; 19. a guide rail; 20. a guide post; 21. a cushion pad.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example 1

Referring to fig. 1, 2, 3 and 7, the invention provides a GPS positioning chip accuracy testing device, which comprises a testing board 1, wherein the top surface of the testing board 1 is fixedly connected with a mounting seat 2, a top port of the mounting seat 2 is covered and fixed with a fixing cover 3, the bottom surface of the testing board 1 is fixedly connected with a bottom plate 4, the top surface of the bottom plate 4 is fixedly connected with a heat dissipation sticker 5, the inner wall of the heat dissipation sticker 5 is fixedly connected with a heat conducting wire 6, the heat dissipation sticker 5 is arranged right below the mounting seat 2, the top of the testing board 1 is fixedly connected with a moisture absorption cotton 10 at the outer side of the heat dissipation sticker 5, the top surface of the moisture absorption cotton 10 is fixedly connected with a gasket 11, the surface of the gasket 11 is flush with the surface of the heat dissipation sticker 5, the surface of the gasket 11 is provided with latticed air holes 7, the air holes 7 are communicated with the interior of the moisture absorption cotton 10, the bottom plate 4, the air passing grooves 9 are criss-cross and communicated with each other in the bottom plate 4, the side surfaces of the bottom plate 4 are provided with ventilation openings 8 at equal intervals, the ventilation openings 8 are communicated with the air passing grooves 9, and the cushion pads 21 are fixedly connected in the inner wall of the bottom plate 4;

bottom plate 4 protects and surveys test panel 1 in the time with 5 heat dissipation subsides the heat that gives off in the GPS chip testing process, the heat dissipation pastes 5 inside heat conduction silk 6 of inner wall and is even respectively the heat, gasket 11 prevents that 5 archs of heat dissipation subsides from causing and surveys test panel 1 and take place to rock, the moisture absorption cotton 10 absorbs the moist gas that contains in surveying test panel 1 operational environment with bleeder vent 7, the inside blotter 21 of bottom plate 4 inner wall can effectively absorb produced vibrations in the testing arrangement handling, thereby protection testing arrangement's safety.

Example 2

Referring to fig. 1, 4, 5 and 6, the present invention provides a GPS positioning chip accuracy testing device, which includes a testing board 1, a bottom board 4 is fixedly connected to a bottom surface of the testing board 1, a receiving groove 13 is formed on a bottom surface of the bottom board 4, a suction cup 14 is disposed inside the receiving groove 13, a port of the suction cup 14 faces a port of the receiving groove 13, a fixing spring 16 is fixedly connected to the suction cup 14 and a top inner wall of the receiving groove 13, a square groove 17 is formed on an inner wall of the port of the receiving groove 13, a limiting plate 12 is disposed inside the square groove 17, an outer end of the limiting plate 12 is fixed inside the receiving groove 13, a guide post 20 is fixedly connected to a bottom of an inner end of the limiting plate 12, a guide rail 19 is formed on an inner wall of a top of the square groove 17, the guide post 20 is fixed inside the guide rail 19, a return spring 18 is fixedly connected to an inner end surface of the guide post, the bottom surface of the bottom plate 4 is fixedly connected with anti-skid lines 15, and the surface contour of the anti-skid lines 15 is of a wave-shaped structure;

the limiting plate 12 is daily fixed at the port of the containing groove 13 under the pushing of the return spring 18, the limiting plate 12 separates and fixes the sucker 14 in the containing groove 13, the limiting plate 12 compresses the return spring 18 to be contained in the square groove 17, the sucker 14 loses the separation and is popped up under the pushing of the fixing spring 16, the testing device is fixed firmly with the table top by the adsorption of the sucker 14, and the sucker 14 can be adjusted according to actual requirements.

According to the GPS positioning chip accuracy testing device provided by the invention, the bottom plate 4 protects the testing plate 1 and absorbs heat dissipated in the GPS chip testing process by the heat dissipation paste 5, the heat is respectively uniform by the heat conduction wires 6 in the inner wall of the heat dissipation paste 5, the gasket 11 prevents the heat dissipation paste 5 from bulging to cause the testing plate 1 to shake, the moisture absorption cotton 10 absorbs moisture contained in the working environment of the testing plate 1 by the air holes 7, and the buffer cushion 21 in the inner wall of the bottom plate 4 can effectively absorb the vibration generated in the testing device carrying process, so that the safety of the testing device is protected; the limiting plate 12 is fixed at the port of the accommodating groove 13 under the pushing of the return spring 18, the sucking disc 14 is blocked and fixed inside the accommodating groove 13 by the limiting plate 12, the limiting plate 12 compresses the return spring 18 and is accommodated inside the square groove 17, the sucking disc 14 is ejected under the pushing of the fixing spring 16 after the blockage is lost, the testing device is firmly fixed with the table top through the adsorption of the sucking disc 14, and the sucking disc 14 can be adjusted according to actual requirements; outside air enters the inside of the air passing groove 9 through the vent 8, airflow inside the air passing groove 9 circulates fast on the inner side surface of the heat dissipation sticker 5, heat is taken away for the heat dissipation sticker 5 in the air circulation process to guarantee operation, and meanwhile, moisture absorbed by the moisture absorption cotton 10 is taken away in the air circulation process.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a GPS fixes a position chip precision testing arrangement, includes and surveys test panel (1), its characterized in that: the heat dissipation plate is characterized in that a mounting seat (2) is fixedly connected to the top surface of the test plate (1), a fixing cover (3) is fixedly covered on a top port of the mounting seat (2), a bottom plate (4) is fixedly connected to the bottom surface of the test plate (1), a heat dissipation sticker (5) is fixedly connected to the top surface of the bottom plate (4), heat conducting wires (6) are fixedly connected to the inner wall of the heat dissipation sticker (5), the heat dissipation sticker (5) is arranged under the mounting seat (2), moisture absorption cotton (10) is fixedly connected to the top of the test plate (1) on the outer side of the heat dissipation sticker (5), a gasket (11) is fixedly connected to the top surface of the moisture absorption cotton (10), the surface of the gasket (11) is flush with the surface of the heat dissipation sticker (5), air holes (7) are formed in a latticed manner on the surface of the gasket (11), and the air holes (7) are communicated with the interior of the moisture absorption cotton (, a buffer pad (21) is fixedly connected to the inner wall of the bottom plate (4).

2. The GPS positioning chip accuracy testing device according to claim 1, wherein: the bottom surface of the bottom plate (4) is provided with a storage groove (13), and a sucker (14) is arranged in the storage groove (13).

3. The GPS positioning chip accuracy testing device according to claim 2, wherein: the port of sucking disc (14) is towards the port of accomodating groove (13), sucking disc (14) and the top inner wall fixedly connected with fixed spring (16) of accomodating groove (13).

4. The GPS positioning chip accuracy testing device according to claim 2, wherein: a square groove (17) is formed in the inner wall of the port of the accommodating groove (13), and a limiting plate (12) is arranged inside the square groove (17).

5. The GPS positioning chip accuracy testing device according to claim 4, wherein: the outer end of the limiting plate (12) is fixed inside the containing groove (13), and the bottom of the inner end of the limiting plate (12) is fixedly connected with a guide post (20).

6. The GPS positioning chip accuracy testing device of claim 5, wherein: the inner wall of the top of the square groove (17) is provided with a guide rail (19), and the guide pillar (20) is fixed inside the guide rail (19).

7. The GPS positioning chip accuracy testing device of claim 6, wherein: the inner end surface of the guide post (20) and the inner end inner wall of the guide rail (19) are fixedly connected with a return spring (18), and the return spring (18) is axially fixed in the guide rail (19).

8. The GPS positioning chip accuracy testing device according to claim 1, wherein: the bottom surface of the bottom plate (4) is fixedly connected with anti-skidding lines (15), and the surface contour of the anti-skidding lines (15) is of a wave-shaped structure.

9. The GPS positioning chip accuracy testing device according to claim 1, wherein: the bottom plate (4) is provided with air passing grooves (9) on the inner side of the heat dissipation sticker (5), and the air passing grooves (9) are criss-cross and communicated with each other in the bottom plate (4).

10. The GPS positioning chip accuracy testing device according to claim 9, wherein: the side of bottom plate (4) encircles the equidistance and has seted up vent (8), communicate each other between vent (8) and air passing groove (9).