Testing device of gas sensor

Abstract

The utility model relates to a testing device of a gas sensor, which comprises a fixed bottom plate, the fixed bottom plate is connected with a mounting seat, the center of the mounting seat is provided with a groove, the groove is internally provided with a plurality of through holes, a plurality of probes are inserted into the through holes, the upper parts of the probes protrude out of the bottom surface of the groove, and the upper parts of the probes protrude out of the bottom surface of the groove. The lower part of the probe protrudes out of the fixed bottom plate, a groove is internally connected with a mounting plate for mounting a product, the center of the mounting plate is provided with a placing groove, the placing groove is provided with a plurality of connecting holes, each connecting hole is in one-to-one correspondence with each through hole, and a spring is connected between the mounting plate and the groove. One side of the mounting seat is connected with a rotating shaft, the rotating shaft is connected with a gland, and the gland is connected with a pressing assembly used for pressing a product. The device is simple and convenient to operate, can quickly test a product, and effectively improves the working efficiency.

Description

Technical Field

[0001] The utility model relates to a testing device for a gas sensor, in particular to a testing device suitable for a MEMS packaged gas sensor. Background Art

[0002] With the rise of the Internet of Things (IoT), demand for gas sensors that mimic human olfaction has surged in recent years. Currently, semiconductor gas sensors and catalytic combustion gas sensors are the most common gas sensors in use. Both heat materials to a state where they can sense changes in external gases. Traditional heating methods, using platinum wire winding, require significant labor for mass production, resulting in low production efficiency. Furthermore, varying worker skills reduce product consistency and yield. Micro-Electro-Mechanical System (MEMS) micro-heating chips, based on semiconductor technology, have attracted widespread attention in the gas sensor field due to their small size, low power consumption, low cost, and ease of integration. MEMS micro-heating chips utilize dozens of process steps, including sputtering, deposition, etching, photolithography, and scribing, to fabricate the heating element and measurement circuitry onto a silicon surface. This silicon-based heater delivers gas sensor detection performance. Semiconductor and catalytic combustion sensors based on MEMS technology significantly achieve miniaturization and low power consumption, while also significantly simplifying the mass production process.

[0003] A search revealed a patent for a gas sensor test fixture (CN202211009308.3), which includes a fixture body, a test probe module, and a sensor heating table. The fixture body and the sensor heating table are fixedly connected by clips and positioning posts. The test probe module is fixed inside the fixture body and is composed of a vertical probe welded to a ceramic plate. A spring is installed on the top of the probe module to contact the fixture body, and the end of the probe is connected to the test equipment via a wire. This structure is inconvenient to remove and place, resulting in reduced testing efficiency.

[0004] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a new type of gas sensor testing device to make it more valuable for industrial use. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the present utility model is to provide a testing device for a gas sensor.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A testing device for a gas sensor includes a fixed base plate, a mounting base is connected to the fixed base plate, a groove is provided at the center of the mounting base, a plurality of through holes are provided in the groove, a plurality of probes are inserted in the through holes, and the upper part of the probes protrudes from the bottom surface of the groove, and the lower part of the probes protrudes from the fixed base plate, a mounting plate for mounting a product is connected in the groove, a placement groove is provided at the center of the mounting plate, a plurality of connecting holes are provided on the placement groove, each of the connecting holes is opposite to each through hole, a spring is connected between the mounting plate and the groove, a rotating shaft is connected to one side of the mounting base, a pressure cover is connected to the rotating shaft, and a clamping assembly for clamping the product is connected to the pressure cover.

[0008] Preferably, in the gas sensor testing device, the gland is fastened to the mounting base by a lock.

[0009] Preferably, in the gas sensor testing device, the clamping assembly includes a clamping block, a clamping groove matching the clamping block is provided below the pressure cover, a rotary rod is passed through the pressure cover, and the lower end of the rotary rod passes through the pressure cover and is connected to the clamping block.

[0010] Preferably, in the gas sensor testing device, a take-in / out opening is provided on a side of the placement slot.

[0011] Preferably, in the gas sensor testing device, both the groove and the mounting plate are provided with spring mounting grooves matching the springs.

[0012] Preferably, in the gas sensor testing device, a spring fixing column for connecting the spring is connected in the spring installation groove.

[0013] By means of the above solution, the present invention has at least the following advantages:

[0014] The utility model can realize rapid testing of products, is simple and convenient to operate, and effectively improves the working efficiency of testing.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0021] Example

[0022] like Figure 1 and Figure 2 As shown, a testing device for a gas sensor includes a fixed base plate 1, a mounting base 2 is connected to the fixed base plate 1, a groove 3 is provided at the center of the mounting base 2, a plurality of through holes 4 are provided in the groove 3, a plurality of probes 5 are inserted in the through holes 4, and the upper part of the probe 5 protrudes from the bottom surface of the groove 3, and the lower part of the probe 5 protrudes from the fixed base plate 1, a mounting plate 6 for mounting a product is connected in the groove 3, a placement groove 9 is provided at the center of the mounting plate 6, a plurality of connecting holes 7 are provided on the placement groove 9, each of the connecting holes 7 is opposite to each through hole 4, a spring 8 is connected between the mounting plate 6 and the groove 3, a rotating shaft 10 is connected to one side of the mounting base 2, a pressure cover 11 is connected to the rotating shaft 10, and a pressing assembly 12 for pressing the product is connected to the pressure cover 11.

[0023] The pressure cover 11 of the present invention is fastened to the mounting base 2 via a lock buckle 13 .

[0024] The clamping assembly 12 in the present invention includes a clamping block 121 , a clamping groove 122 matching the clamping block 121 is provided below the pressure cover 11 , a rotary rod 123 is passed through the pressure cover 11 , and the lower end of the rotary rod 123 passes through the pressure cover 11 and is connected to the clamping block 121 .

[0025] The side of the placement slot 9 in the present invention is provided with a take-in / put-out opening for convenient and quick take-in / put-out.

[0026] In the present invention, the groove 3 and the mounting plate 6 are both provided with spring mounting grooves for matching the springs, and the spring fixing columns for connecting the springs are connected in the spring mounting grooves, thereby ensuring the stability of the springs.

[0027] The working principle of this utility model is as follows:

[0028] During the specific work, place the product in the installation slot, then lock the cover, and then press the product with the pressing block by tightening the rotary rod so that the part of the product that needs to be tested contacts the probe, and finally fix the fixed base plate on the test detector to test the product.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A gas sensor testing device, characterized in that: The invention comprises a fixed base plate (1), a mounting seat (2) is connected to the fixed base plate (1), a groove (3) is provided at the center of the mounting seat (2), a plurality of through holes (4) are provided in the groove (3), a plurality of probes (5) are inserted in the through holes (4), and the upper part of the probes (5) protrudes from the bottom surface of the groove (3), and the lower part of the probes (5) protrudes from the fixed base plate (1), a mounting plate (6) for mounting products is connected in the groove (3), a placement groove (9) is provided at the center of the mounting plate (6), a plurality of connecting holes (7) are provided on the placement groove (9), each of the connecting holes (7) is opposite to each through hole (4), a spring (8) is connected between the mounting plate (6) and the groove (3), a rotating shaft (10) is connected to one side of the mounting seat (2), a pressure cover (11) is connected to the rotating shaft (10), and a pressing assembly (12) for pressing the product is connected to the pressure cover (11).

2. A gas sensor testing device according to claim 1, characterized in that: The pressure cover (11) is fastened to the mounting seat (2) via a lock.

3. A gas sensor testing device according to claim 1, characterized in that: The clamping assembly (12) includes a clamping block (121), a clamping groove (122) matching the clamping block (121) is provided below the pressure cover (11), a rotary rod (123) is passed through the pressure cover (11), and the lower end of the rotary rod (123) passes through the pressure cover (11) and is connected to the clamping block (121).

4. A gas sensor testing device according to claim 1, characterized in that: A take-in / out opening is provided on the side of the placement groove (9).

5. The gas sensor testing device according to claim 1, characterized in that: The groove (3) and the mounting plate (6) are both provided with spring mounting grooves for matching springs.

6. A gas sensor testing device according to claim 5, characterized in that: A spring fixing column for connecting the spring is connected in the spring installation groove.

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