Portable gas chip testing tool

Abstract

The utility model discloses a portable gas chip test tool, and aims to provide a portable gas chip test tool which can calibrate and test a gas chip, is convenient to operate, simple in structure, low in manufacturing cost, convenient to carry and can be conveniently connected with a computer. The system comprises a chip test circuit board which is connected with a data interface; at least one probe assembly, wherein each probe assembly comprises a plurality of elastic probes arranged on the chip test circuit board; the chip slot plate is provided with chip slots in one-to-one correspondence with the probe assemblies, the bottoms of the chip slots are provided with probe via holes, and the elastic probes of the probe assemblies extend into the corresponding chip slots through the probe via holes; and the pressing plate is used for pressing the gas chip to be tested in the chip groove, so that the elastic probe is propped against the gas chip to be tested.

Description

Technical Field

[0001] The utility model relates to the field of chip testing, and particularly relates to a portable gas chip testing tooling. Background Art

[0002] Currently, during the testing process of gas chips (such as ammonia, VOC, alcohol and other gas sensor MEMS chips, hereinafter referred to as gas chips), after the gas chips are packaged, it is necessary to calibrate and test the gas chips. During this testing process, we need a testing tooling that can be conveniently connected to a computer through a data interface, can communicate and read the data of the gas chips, and can also calibrate and test the gas chips.

[0003] Currently, general gas chip testing jigs generally have problems such as complex structures, relatively large sizes, and inconvenience in carrying and displaying. In view of this, it is very meaningful to design a tooling jig with a simple structure, low manufacturing cost, easy to carry, capable of being conveniently connected to a computer, and used for calibrating and testing gas chips. During the sample demonstration process for customers, the chip data can be conveniently tested and read through a portable laptop computer at any time and anywhere. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a portable gas chip testing tooling that can calibrate and test gas chips, is convenient to operate, has a simple structure, low manufacturing cost, is easy to carry, and can be conveniently connected to a computer.

[0005] The technical solution of the utility model is as follows:

[0006] A portable gas chip testing tooling, comprising:

[0007] A chip testing circuit board, which is connected with a data interface;

[0008] At least one probe assembly, each probe assembly comprising a plurality of elastic probes arranged on the chip testing circuit board;

[0009] A chip slot board, on which there are chip slots corresponding to the probe assemblies one by one, probe through holes are arranged at the bottoms of the chip slots, and the elastic probes of the probe assemblies extend into the corresponding chip slots through the probe through holes;

[0010] The pressing plate presses the gas chip to be tested in the chip slot, so that the elastic probe abuts against the gas chip to be tested. The specific use of a portable gas chip testing tooling according to this solution is as follows: place the gas chip to be tested in the chip slot, then use the pressing plate to press the gas chip to be tested in the chip slot, so that the elastic probe abuts against the gas chip to be tested, and make the elastic probe and the PAD on the gas chip fully contact to form a reliable circuit path, and connect the gas chip to be tested to the chip test circuit board; the chip test circuit board is connected to an external test computer through a data interface, so that the gas chip can be calibrated and tested through the test computer, and the demonstration process of the gas chip sample can be displayed; it is convenient to operate, has a simple structure, low manufacturing cost, is easy to carry, and can be conveniently connected to a computer.

[0011] Preferably, a pressing plate slot is provided on the surface of the chip slot board, the chip slot is arranged on the bottom surface of the pressing plate slot, and a card slot is provided at each of the opposite side walls of the pressing plate slot. The pressing plate can rotate in the pressing plate slot, and the edge of the pressing plate can be snapped into or removed from the card slot by rotation; when the edge of the pressing plate is removed from the card slot, the pressing plate can be taken out of the pressing plate slot. In this way, after the pressing plate is placed in the pressing plate slot and the pressing plate presses the gas chip to be tested in the chip slot so that the elastic probe abuts against the gas chip to be tested, the pressing plate can be rotated to snap the edge of the pressing plate into the card slot. After that, the pressing plate will keep pressing the gas chip to be tested in the chip slot, so that the elastic probe abuts against the gas chip to be tested, and make the elastic probe and the PAD on the gas chip fully contact to form a reliable circuit path; thus, it is convenient to calibrate and test the gas chip subsequently. After the calibration and test of the gas chip are completed, the pressing plate can be rotated to move the edge of the pressing plate out of the card slot; then, take out the pressing plate from the pressing plate slot, and then the gas chip can be taken out.

[0012] Preferably, it further includes two side plates, and the two side plates are arranged on both sides of the opening of the pressing plate slot. The pressing plate slot space between the side plates and the bottom surface of the pressing plate slot forms the card slot. In this way, a card slot can be conveniently formed at each of the opposite side walls of the pressing plate slot, which is convenient for the actual formation of the card slot.

[0013] Preferably, it further includes a bottom plate, and the side plates, the chip slot board, the chip test circuit board and the bottom plate are distributed from top to bottom in sequence. The pressing plate slot is located on the upper surface of the chip slot board, and the side plates, the chip slot board, the chip test circuit board and the bottom plate are connected into one body by bolts. In this way, the side plates, the chip slot board, the chip test circuit board and the bottom plate can be conveniently connected into one body by bolts, which is convenient for actual installation and manufacture.

[0014] Preferably, the pressing plate groove is located on the upper surface of the chip groove plate and penetrates through the upper surface of the chip groove plate. Arc-shaped openings are provided on the opposite side walls of the pressing plate groove, and the pressing plate is a circular pressing plate with notches on its opposite sides. Positioning the pressing plate groove on the upper surface of the chip groove plate facilitates placing the gas chip into the chip groove and also enables the pressing plate to be inserted into the pressing plate groove. The arc-shaped openings are provided on the opposite side walls of the pressing plate groove, and the pressing plate is a circular pressing plate with notches on its opposite sides. In this way, the circular pressing plate cooperates with the arc-shaped openings on the opposite side walls of the pressing plate groove, allowing the pressing plate to rotate smoothly and stably within the pressing plate groove.

[0015] Preferably, the pressing plate is provided with ventilation holes, which correspond to the chip grooves one by one. In this way, after the pressing plate presses the gas chip to be tested in the chip groove, the sensitive material of the gas chip can better contact the standard gas through the ventilation holes for corresponding calibration and functional testing.

[0016] Preferably, it further includes a bottom plate. The chip test circuit board is located between the bottom plate and the chip groove plate, and the chip groove plate, the chip test circuit board, and the bottom plate are integrated by bolts. In this way, it is convenient to integrate the chip groove plate, the chip test circuit board, and the bottom plate by bolts, facilitating actual installation and production.

[0017] Preferably, the elastic probes in the same probe assembly correspond to the PADs on the gas chip one by one.

[0018] Preferably, it further includes a housing. The housing is provided with a through-hole. The chip groove plate is located outside the housing, a part of the chip test circuit board is located inside the housing, and the data interface passes through the through-hole of the housing and extends to the outside of the housing. The data interface and the chip groove plate are located on opposite sides of the housing. The data interface and the chip groove plate are located on opposite sides of the housing. In this way, the chip groove plate will not affect the connection between the data interface and the test computer.

[0019] Preferably, the data interface is a USB interface. In this way, it can be connected to the test computer through the USB interface, and can be plugged and used on the test computer to read the data of the gas chip.

[0020] The beneficial effects of the present utility model are: it can calibrate and test the gas chip, and is convenient to operate, has a simple structure, low manufacturing cost, is easy to carry, and can be conveniently connected to a computer. Description of the Drawings

[0021] Figure 1 is an exploded view of a portable gas chip test tooling of the present utility model.

[0022] Figure 2 is an assembly drawing of a portable gas chip test tooling of the present utility model.

[0023] In the figure:

[0024] Chip test circuit board 1, data interface 1.1;

[0025] Chip slot board 2, chip slot 2.1, pressure plate slot 2.2, arc notch 2.3, card slot 2.4;

[0026] Pressure plate 3, ventilation hole 3.1;

[0027] Probe assembly 4, elastic probe 4.1;

[0028] Bottom plate 5;

[0029] Side plate 6;

[0030] Outer shell 7. Specific implementation mode

[0031] Specific embodiment 1, as Figure 1 、 Figure 2 shown, a portable gas chip test tooling, including a chip test circuit board 1, at least one probe assembly 4, a chip slot board 2 and a pressure plate 3. A data interface 1.1 is connected to the chip test circuit board 1, and the data interface 1.1 is used to connect to an external test computer. The probe assembly 4 is one or more. In this embodiment, the probe assembly 4 is four, and the four probe assemblies 4 are arranged in two rows, front and back. Of course, it should be noted that the specific quantity and arrangement of the probe assembly 4 can be designed and arranged according to actual needs. Each probe assembly 4 includes a number of elastic probes 4.1 arranged on the chip test circuit board 1. The elastic probes 4.1 in the same probe assembly 4 correspond one by one to the PADs on the gas chip. The specific quantity and arrangement of the elastic probes 4.1 in the same probe assembly 4 are designed according to the PADs on the actually tested gas chip. In this embodiment, the gas chip has 4 PADs, the number of elastic probes 4.1 is four, and the four elastic probes 4.1 in the same probe assembly 4 are arranged in two rows, front and back. The chip slot board 2 is provided with chip slots 2.1 corresponding one by one to the probe assemblies 4. The bottom of the chip slot 2.1 is provided with probe through holes. The elastic probes 4.1 of the probe assembly 4 extend into the corresponding chip slots 2.1 through the probe through holes. The pressure plate 3 is used to press the gas chip to be tested in the chip slot 2.1, so that the elastic probes 4.1 are abutted against the gas chip to be tested, and the elastic probes 4.1 and the PADs on the gas chip are in full contact.

[0032] The specific use of the portable gas chip test tooling in this embodiment is as follows,

[0033] Place the gas chip to be tested into the chip slot 2.1. One gas chip is placed in one chip slot 2.1, and the PAD of the gas chip faces the elastic probe 4.1. Then, use the pressure plate 3 to press the gas chip to be tested in the chip slot 2.1, so that the elastic probe 4.1 abuts against the gas chip to be tested, making the elastic probe 4.1 and the PAD on the gas chip in full contact to form a reliable circuit path, and connecting the gas chip to be tested to the chip test circuit board 1. The chip test circuit board 1 is connected to an external test computer through the data interface 1.1. After that, the gas chip can be calibrated and tested through the test computer (four gas chips can be calibrated and tested simultaneously at one time), and the demonstration process of each gas chip sample can be displayed. A portable gas chip test tooling of this embodiment is convenient to operate, simple in structure, and low in manufacturing cost, and can be conveniently connected to the test computer. On the other hand, since the portable gas chip test tooling of this embodiment can be connected to an external test computer through the data interface 1.1 and the size of the gas chip is generally small, the overall size of the portable gas chip test tooling is small and can be carried around conveniently.

[0034] Specific Embodiment 2, as Figure 1 、 Figure 2 shown, a portable gas chip test tooling includes a chip test circuit board 1, at least one probe assembly 4, a chip slot board 2 and a pressure plate 3.

[0035] A data interface 1.1 is connected to the chip test circuit board 1, and the data interface 1.1 is used to connect to an external test computer. In this embodiment, the data interface 1.1 is a USB interface. In this way, it can be connected to the test computer through the USB interface, and can be plugged and used on the test computer to read data in real time. Of course, it should be noted that the data interface 1.1 can also be other interfaces in the prior art.

[0036] The probe assembly 4 is one or more. In this embodiment, the probe assembly 4 is four, and the four probe assemblies 4 are arranged in two rows, front and back. Of course, it should be noted that the specific number and arrangement of the probe assemblies 4 can be designed and arranged according to actual needs. Each probe assembly 4 includes a number of elastic probes 4.1 arranged on the chip test circuit board 1. The elastic probes 4.1 in the same probe assembly 4 correspond one by one to the PADs on the gas chip. The specific number and arrangement of the elastic probes 4.1 in the same probe assembly 4 are designed according to the PADs on the actually tested gas chip. In this embodiment, the gas chip has 4 PADs, the number of elastic probes 4.1 is four, and the four elastic probes 4.1 in the same probe assembly 4 are arranged in two rows, front and back.

[0037] The chip slot board 2 is provided with chip slots 2.1 corresponding one-to-one to the probe assemblies 4. The chip slots 2.1 are used for placing the gas chips to be tested, and the shape of the chip slots 2.1 matches the shape of the gas chips to be tested. In this embodiment, a pressing plate slot 2.2 is provided on the surface of the chip slot board 2, and the chip slots 2.1 are arranged on the bottom surface of the pressing plate slot 2.2. A probe through-hole is provided at the bottom of the chip slot 2.1. The elastic probes 4.1 of the probe assembly 4 extend into the corresponding chip slots 2.1 through the probe through-holes.

[0038] In one implementation manner of this embodiment, the probe through-holes at the bottom of the chip slots 2.1 correspond one-to-one to the elastic probes 4.1 in the same probe assembly 4, and the elastic probes 4.1 in the same probe assembly 4 extend into the chip slots 2.1 through the corresponding probe through-holes.

[0039] In another implementation manner of this embodiment, the probe through-hole at the bottom of the chip slot 2.1 is a large through-hole, and the elastic probes 4.1 in the same probe assembly 4 all extend into the corresponding chip slots 2.1 through the same probe through-hole.

[0040] A clamping slot 2.4 is provided at each of the opposite side walls of the pressing plate slot 2.2. The pressing plate 3 can rotate in the pressing plate slot 2.2, and the edge of the pressing plate 3 can be clamped into or removed from the clamping slot 2.4 by rotation. When the edge of the pressing plate 3 is removed from the clamping slot 2.4, the pressing plate 3 can be taken out from the pressing plate slot 2.2. The pressing plate 3 is used to press the gas chip to be tested in the chip slot 2.1 so that the elastic probe 4.1 abuts against the gas chip to be tested, enabling the elastic probe 4.1 and the PAD on the gas chip to be in full contact.

[0041] The specific use of a portable gas chip testing tooling in this embodiment is as follows.

[0042] Place the gas chip to be tested into the chip slot 2.1, with one gas chip placed in one chip slot 2.1, and the PAD of the gas chip facing the elastic probe 4.1.

[0043] Then, use the pressing plate 3 to press the gas chip to be tested in the chip slot 2.1 so that the elastic probe 4.1 abuts against the gas chip to be tested, enabling the elastic probe 4.1 and the PAD on the gas chip to be in full contact; then, by rotating the pressing plate 3, the edge of the pressing plate 3 is clamped into the clamping slot 2.4. After that, the pressing plate 3 will keep pressing the gas chip to be tested in the chip slot 2.1 so that the elastic probe 4.1 abuts against the gas chip to be tested, enabling the elastic probe 4.1 and the PAD on the gas chip to be in full contact, forming a reliable circuit path to connect the gas chip to be tested to the chip test circuit board 1.

[0044] Connect the chip test circuit board 1 to an external test computer through the data interface 1.1; thereafter, the gas chip can be calibrated and tested through the test computer (four gas chips can be calibrated and tested simultaneously at one time), and the demonstration process of each gas chip sample can be displayed. After the calibration and testing of the gas chip are completed, the pressing plate 3 can be rotated to move the edge of the pressing plate 3 out of the card slot 2.4; then, the pressing plate 3 can be taken out from the pressing plate groove 2.2, and then the gas chip can be taken out.

[0045] A portable gas chip test tooling in this embodiment is convenient to operate, simple in structure, low in manufacturing cost, and can be conveniently connected to a test computer. On the other hand, since the portable gas chip test tooling in this embodiment can be connected to an external test computer through the data interface 1.1 and the size of the gas chip is generally small, the overall size of the portable gas chip test tooling is small and can be conveniently carried around.

[0046] Specifically, a portable gas chip test tooling further includes a housing 7 and a bottom plate 5. The housing 7 includes upper and lower shells. The upper and lower shells are positioned by the cooperation of positioning posts and positioning holes, and the upper and lower shells are connected by screws. The housing 7 is provided with a through hole. The chip slot board 2 is located outside the housing 7 and is close to or abuts against the outer side surface of the housing 7. The data interface 1.1 passes through the through hole of the housing 7 and extends to the outside of the housing 7. A part of the chip test circuit board 1 is located inside the housing 7. Another part of the chip test circuit board 1 is located between the bottom plate 5 and the chip slot board 2.

[0047] The data interface 1.1 and the chip slot board 2 are located on opposite sides of the housing 7. The data interface 1.1 and the chip slot board 2 are located on opposite sides of the housing 7. In this way, the chip slot board 2 will not affect the connection between the data interface 1.1 and the test computer.

[0048] In this embodiment, the housing 7 is made of an insulating material, and the pressing plate 3, the chip slot board 2, and the bottom plate 5 are all made of fiberglass material. Of course, it should be noted that the pressing plate 3, the chip slot board 2, and the bottom plate 5 can also be made of other materials, such as colored plastic.

[0049] Furthermore, a portable gas chip test tooling further includes two side plates 6. The two side plates 6 are arranged on opposite sides of the opening of the pressing plate groove 2.2. In this embodiment, the two side plates 6 are symmetrically distributed on opposite sides of the opening of the pressing plate groove 2.2. The space of the pressing plate groove 2.2 between the side plate 6 and the bottom surface of the pressing plate groove 2.2 forms the card slot 2.4. In this way, a card slot 2.4 can be conveniently formed at each of the opposite side walls of the pressing plate groove 2.2, which is convenient for the actual formation of the card slot 2.4.

[0050] Furthermore, the side plate 6, the chip slot plate 2, the chip test circuit board 1 and the bottom plate 5 are distributed in sequence from top to bottom. The pressing plate slot 2.2 is located on the upper surface of the chip slot plate 2. The side plate 6, the chip slot plate 2, the chip test circuit board 1 and the bottom plate 5 are integrated by bolts. In this way, it is convenient to integrate the side plate 6, the chip slot plate 2, the chip test circuit board 1 and the bottom plate 5 by bolts, which is convenient for actual installation and production.

[0051] Furthermore, the pressing plate slot 2.2 penetrates through the upper surface of the chip slot plate 2. Arc-shaped openings 2.3 are provided on the opposite side walls of the pressing plate slot 2.2. In this embodiment, the arc-shaped openings 2.3 on the opposite side walls of the pressing plate slot 2.2 are symmetrically distributed. The pressing plate 3 is a circular pressing plate with notches on its opposite sides, and this circular pressing plate cooperates with the arc-shaped openings 2.3 on the opposite side walls of the pressing plate slot 2.2. When the pressing plate 3 is placed into the pressing plate slot 2.2, the notches on the opposite sides of the pressing plate 3 can allow the side plate 6 extending into the pressing plate slot 2.2 to pass through, so that the pressing plate 3 can be smoothly placed into the pressing plate slot 2.2. The pressing plate slot 2.2 is located on the upper surface of the chip slot plate 2. In this way, it is convenient to place the gas chip into the chip slot 2.1, and it is also convenient to place the pressing plate 3 into the pressing plate slot 2.2. Arc-shaped openings are provided on the opposite side walls of the pressing plate slot 2.2, and the pressing plate 3 is a circular pressing plate with notches on its opposite sides. In this way, the circular pressing plate cooperates with the arc-shaped openings on the opposite side walls of the pressing plate slot 2.2, enabling the pressing plate 3 to rotate smoothly and stably within the pressing plate slot 2.2.

[0052] Furthermore, ventilation holes 3.1 are provided on the pressing plate 3, and the ventilation holes 3.1 correspond to the chip slots 2.1 one by one. In this way, after the pressing plate 3 presses the gas chip to be tested in the chip slot 2.1, the sensitive material of the gas chip can better contact the standard gas through the ventilation holes 3.1 to perform corresponding calibration and functional tests.

[0053] The above is only a preferred embodiment of the present invention, and does not impose any limitations on the present invention. Any simple modifications, changes, and equivalent transformations made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A portable gas chip testing tool, characterized in that: include: A chip testing circuit board, on which a data interface is connected; At least one probe assembly, each probe assembly comprising a plurality of elastic probes arranged on a chip test circuit board; A chip slot plate is provided with chip slots corresponding to the probe assemblies one by one, and a probe via hole is provided at the bottom of the chip slot, and the elastic probe of the probe assembly extends into the corresponding chip slot through the probe via hole; The pressure plate presses the gas chip to be tested into the chip slot so that the elastic probe is against the gas chip to be tested.

2. A portable gas chip testing tool according to claim 1, characterized in that: A pressure plate groove is provided on the surface of the chip slot plate, and the chip slot is arranged on the bottom surface of the pressure plate groove. A card slot is provided on each of the opposite side walls of the pressure plate groove. The pressure plate can rotate in the pressure plate groove, and the pressure plate can rotate so that the edge of the pressure plate is stuck in the card slot or moved out of the card slot; when the edge of the pressure plate is stuck and moved out of the card slot, the pressure plate can be taken out of the pressure plate groove.

3. A portable gas chip testing tool according to claim 2, characterized in that: It also includes two side plates, which are arranged on both sides of the notch of the pressure plate groove, and the pressure plate groove space between the side plates and the bottom surface of the pressure plate groove constitutes the clamping groove.

4. A portable gas chip testing tool according to claim 3, characterized in that: It also includes a bottom plate, and the side plate, chip slot plate, chip test circuit board and bottom plate are distributed in sequence from top to bottom, the pressure plate groove is located on the upper surface of the chip slot plate, and the side plate, chip slot plate, chip test circuit board and bottom plate are connected as a whole by bolts.

5. A portable gas chip testing tool according to claim 2 or 3, characterized in that: The pressure plate groove is located on the upper surface of the chip slot plate, and the pressure plate groove passes through the upper surface of the chip slot plate. The opposite side walls of the pressure plate groove are provided with arc openings. The pressure plate is a circular pressure plate with notches on the opposite sides.

6. A portable gas chip testing tool according to claim 1 or 2 or 3 or 4, characterized in that: The pressing plate is provided with ventilation holes, and the ventilation holes correspond to the chip slots one by one.

7. A portable gas chip testing tool according to claim 1, 2 or 3, characterized in that: It also includes a bottom plate, a chip test circuit board is located between the bottom plate and the chip slot plate, and the chip slot plate, the chip test circuit board and the bottom plate are connected as a whole through bolts.

8. A portable gas chip testing tool according to claim 1 or 2 or 3 or 4, characterized in that: The elastic probes in the same probe assembly correspond one-to-one to the PADs on the gas chip.

9. A portable gas chip testing tool according to claim 1 or 2 or 3 or 4, characterized in that: It also includes a shell, which is provided with a through opening, a chip slot plate is located on the outside of the shell, a part of the chip test circuit board is located in the shell, a data interface passes through the through opening of the shell and extends to the outside of the shell, and the data interface and the chip slot plate are located on opposite sides of the shell.

10. A portable gas chip testing tool according to claim 1 or 2 or 3 or 4, characterized in that: The data interface is a USB interface.

Images