CN209911327U

CN209911327U - Gas sensor testing device

Info

Publication number: CN209911327U
Application number: CN201920422608.1U
Authority: CN
Inventors: 李辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-01-07
Anticipated expiration: 2029-03-31

Abstract

The utility model relates to a test technical field especially relates to a gas sensor testing arrangement. Including gas circuit board and bottom plate, the bottom plate is equipped with a N circular through-hole of arranging in proper order, every circular through-hole inwards is the leather sheath in proper order, the sensor cover, the sensor welding is on PCB, the outside of leather sheath, be equipped with O type circle between bottom plate and the PCB, the front end and the rear end of bottom plate are equipped with pagoda joint respectively, the gas circuit of gas circuit board is equipped with the barricade respectively with the region that the sensor corresponds, the PCB upside is equipped with two sets of gas circuit boards, the bottom plate, a N leather sheath, a N sensor cover, a N sensor, PCB one end is equipped with temperature module, rotary switch, two 2P terminals, 2N resistance has been welded at the PCB back, 2P terminal, rotary switch, the sensor, the resistance electricity. The utility model has the advantages that: the gas sensor can test various performance parameters of the gas sensor and is used as a theoretical basis for designing products.

Description

Gas sensor testing device

Technical Field

The utility model relates to a test technical field especially relates to a gas sensor testing arrangement.

Background

In the fields of petroleum, chemical industry, natural gas, metallurgy, thermal power generation and the like, harmful gas has leakage danger at any time, in order to monitor the harmful gas, a harmful gas detector is widely applied to the fields, when the leaked harmful gas is detected to reach a set concentration, an alarm is sent out, corresponding measures are taken at the first time, and the safety of field workers is guaranteed.

In the harmful gas detector product, the gas sensor is one of the core components, and the performance of the gas sensor is directly related to the quality of the gas sensor. In the product development stage, various performance parameters of the gas sensor are tested, specifically, harmful gases with various concentrations are introduced under a certain voltage condition, and the output current condition of the sensor is recorded so as to be used as a reference for designing a product.

Current gas detector manufacturers lack fundamental research efforts for gas sensors, one reason being the lack of associated testing equipment.

Disclosure of Invention

The utility model aims to solve the technical problem that a gas sensor testing arrangement is provided, can test each item performance parameter of gas sensor.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: a gas sensor testing device comprises a gas circuit board and a bottom board, and is characterized in that the bottom board is provided with N circular through holes which are sequentially arranged, each circular through hole is inwards sequentially provided with a leather sleeve, a sensor sleeve and a sensor, the sensors are welded on a PCB, the outer side of the leather sleeve is provided with an O-shaped ring between the bottom board and the PCB, the gas circuit board is connected with the bottom board through a countersunk screw and a nut, the outer side of the joint of the gas circuit board and the bottom board is provided with a sealing object, the front end and the rear end of the bottom board are respectively provided with a pagoda joint, the areas of the gas circuit board corresponding to the sensors are respectively provided with a retaining wall, the PCB is provided with two groups of gas circuit boards, the bottom board, N leather sleeves, N sensor sleeves and N sensors, one end of the PCB is provided with a temperature module, a knob switch and two 2P terminals, the edge of the PCB is provided with M through holes, Knob switch, sensor, resistance electricity are connected, the gas circuit cross section of gas circuit board is the rectangle, the sealant is no silica glass and glues, the sealant is no silica gel area, support piece is copper post and supporting nut.

The utility model has the advantages that: the gas sensor can test various performance parameters of the gas sensor and is used as a theoretical basis for designing products.

Drawings

FIG. 1 is an external view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a lower side view of the present invention;

wherein 1 is the gas circuit board, 2 is the bottom plate, 3 is the 2P terminal, 4 is knob switch, 5 is the PCB, 6 is the pagoda joint, 7 is the countersunk screw, 8 is the nut, 9 is copper post and supporting nut, 10 is the barricade, 11 is the sensor, 12 is the sensor cover, 13 is the leather sheath, 14 is O type circle, 15 is the resistance, 16 is circular through-hole, 17 is the no silica gel area, 18 is the temperature module.

The specific implementation mode is as follows:

the invention is further described with reference to the following embodiments.

In the first embodiment, as shown in fig. 1, 2 and 3,

a gas sensor testing device comprises a gas circuit board (1) and a bottom board (2), wherein the bottom board (2) is provided with N circular through holes (16) which are sequentially arranged, each circular through hole (16) is inwards sequentially provided with a leather sleeve (13), a sensor sleeve (12) and a sensor (11), the sensors (11) are welded on a PCB, the outer side of each leather sleeve (13), an O-shaped ring (14) is arranged between the bottom board (2) and the PCB (5), the gas circuit board (1) and the bottom board (2) are connected through countersunk head screws (7) and nuts (8), a sealing object is arranged on the outer side of the joint of the gas circuit board (1) and the bottom board (2), the sealing performance of a gas circuit is ensured by the structure, pagoda joints (6) are respectively arranged at the front end and the rear end of the bottom board (2), the pagoda joint at the front end is connected with a plastic gas inlet pipe, and the pagoda joint at the rear end can be connected, when the gas circuit board is used at ordinary times, the pagoda joint at the rear end is not connected, the gas circuit of the gas circuit board (1) and the corresponding area of the sensor (11) are respectively provided with a retaining wall (10), the gas and the sensor are ensured to be fully contacted, and the upper side of the PCB (5) is provided with two groups of gas circuit boards (1), a bottom board (2), N leather sleeves (13), N sensor sleeves (12) and N sensors (11). Design two sets of availability factor that can improve testing arrangement, PCB (5) one end is equipped with temperature module (18), rotary switch (4), two 2P terminal (3), the edge of PCB (5) is equipped with M through-holes, through-hole department is equipped with support piece (9) respectively, the effect of temperature module (18) is the service environment temperature who detects this testing arrangement, the switching of 2N sensor (11) one when rotary switch (4)'s effect is the test, the 2P terminal is external switching power supply, testing arrangement's power supply has been ensured, PCB (5) back has welded 2N resistance (15), 2P terminal (3), rotary switch (4), sensor (11), resistance (15) electricity is connected, the gas circuit cross section of gas circuit board (1) is the rectangle, the sealant is no silica gel area (17), support piece is copper post and supporting nut (9).

Claims

1. A gas sensor testing device comprises a gas circuit board and a bottom board, and is characterized in that the bottom board is provided with N circular through holes which are sequentially arranged, each circular through hole is inwards sequentially provided with a leather sleeve, a sensor sleeve and a sensor, the sensors are welded on a PCB, an O-shaped ring is arranged on the outer side of the leather sleeve and between the bottom board and the PCB, the gas circuit board and the bottom board are connected through countersunk screws and nuts, the outer side of the joint of the gas circuit board and the bottom board is provided with a sealing object, the front end and the rear end of the bottom board are respectively provided with a pagoda joint, the areas of the gas circuit board corresponding to the sensors are respectively provided with a retaining wall, the upper side of the PCB is provided with two groups of gas circuit boards, the bottom board, the N leather sleeves, the N sensor sleeves and the N sensors, one end of the PCB is provided with a temperature module, a knob switch and two 2P terminals, the, the 2P terminal, the knob switch, the sensor and the resistor are electrically connected.

2. The gas sensor testing device of claim 1, wherein the gas path cross-section of said gas path plate is rectangular.

3. The gas sensor testing apparatus of claim 1, wherein the sealant is a non-silica glass cement.

4. The gas sensor testing device of claim 1, wherein said sealant is a silicone-free tape.

5. The gas sensor testing device of claim 1, wherein the support member is a copper cylinder and a mating nut.