Gas sensor packaging structure

Abstract

The utility model discloses a gas sensor packaging structure, which relates to the technical field of gas sensors and comprises a packaging shell, an inner tooth sealing cover is arranged at the top end of the packaging shell, limiting mechanisms are arranged on two sides of the inner tooth sealing cover, and the limiting mechanisms are used for positioning the packaging shell and corresponding equipment. According to the gas sensor, the gas leakage condition of the packaging shell is avoided, the adjusting mechanism is arranged in the packaging shell, and the adjusting mechanism is used for positioning and adjusting an instrument for gas sensing, so that the sensor is convenient to replace and recycle. The equipment brackets are connected with the external threaded pipe in a penetrating manner, the distance between the equipment brackets is adjusted, and the height of the equipment brackets is adjusted, so that packaging shells with different diameters or widths can be inspected and installed, and electric wires or data lines can be connected in a penetrating manner by using the external threaded pipe; and the condition that the electric wire cannot be effectively overhauled or equipment leaks air in the connecting process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sensors, in particular to a gas sensor packaging structure. Background Art

[0002] A gas sensor is a converter that converts the volume fraction of a gas into a corresponding electrical signal. The detector head conditions the gas sample through the gas sensor, usually including filtering out impurities and interfering gases, and drying or refrigerating the instrument display.

[0003] Before packaging, the sensor unit or sensor system is first fixed inside the pre-packaging structure, and then the packaging structure is processed to design the sensor system and the packaging structure as an integrated structure. This method has a complicated manufacturing process, and the sensor system cannot be replaced after the packaging is completed. When the sensor system is damaged or the sensor layer is completely used, only the overall structure can be replaced, and it is impossible to replace only the internal sensor system, which will lead to problems such as material waste and low recovery rate. Summary of the invention

[0004] The purpose of the utility model is to provide a gas sensor packaging structure to solve the above-mentioned defects caused by the prior art.

[0005] A gas sensor packaging structure includes a packaging shell, an inner thread sealing cover is arranged at the top of the packaging shell, and limiting mechanisms are arranged on both sides of the inner thread sealing cover. The limiting mechanisms position the packaging shell and corresponding equipment to avoid gas leakage in the packaging shell. An adjustment mechanism is arranged inside the packaging shell, and the adjustment mechanism positions and adjusts the instrument used for gas sensing to facilitate replacement and recycling of the sensor.

[0006] Preferably, the limiting mechanism includes an air inlet hole, a transverse positioning block, a side positioning frame, a fastening hole and a nut. The top end of the inner thread sealing cover is penetrated with an air inlet hole, and transverse positioning blocks are symmetrically arranged on both sides of the inner thread sealing cover. The top end of the transverse positioning block is connected to the side positioning frame, the bottom end of the side positioning frame is welded with a nut, and the top end of the side positioning frame is penetrated with a fastening hole.

[0007] Preferably, the side positioning frame is connected to one side of the inner tooth sealing cover via a horizontal positioning block arranged at the bottom end.

[0008] Preferably, the adjustment mechanism includes an external threaded tube, a device holder, a power supply line, an external socket, an inner sealing ring and an outer groove, the internal part of the external threaded tube is connected with the power supply line, the output end of the power supply line is connected with a gas sensor chip, the outer side of the external threaded tube is connected with the device holder, the surface of the device holder is provided with an outer groove, the top end of the packaging shell is connected with the external socket, and an inner sealing ring is arranged directly above the external socket.

[0009] Preferably, the device bracket is connected to the bottom end of the gas sensor chip via an outer groove opened at the top end.

[0010] Preferably, the equipment bracket is connected to the internal thread sealing cover via an external threaded tube that penetrates and connects.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The equipment bracket is connected with the external threaded tube through insertion, and the spacing of the equipment bracket is adjusted, and the height of the equipment bracket is adjusted, so as to meet the inspection and installation of packaging shells with different diameters or widths, and improve the use of external threaded tubes for plugging and connecting wires or data cables. During use, it is avoided that the wires cannot be effectively repaired during the connection process or cause equipment leakage. The packaging shell can effectively protect the integrated circuit chip and the gas sensor chip to prevent dust from affecting them, and the installation process is more convenient.

[0013] 2. The operator positions both sides of the inner thread sealing cover through the side positioning frame. During use, the side positioning frame is connected and docked with the gas sensor housing, and connected with the external screws through nuts, and the connection position of the packaging shell is adjusted or assembled, and the top of the packaging shell is sealed through the inner thread sealing cover, which is convenient for replacement and disassembly of the internal instruments and saves the cost of equipment during recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the front cross-section structure of the packaging shell in the utility model.

[0016] Figure 3 It is a schematic diagram of the side structure of the packaging shell in the utility model.

[0017] Figure 4 It is a schematic diagram of the top view structure of the equipment bracket in the utility model.

[0018] Figure 5 It is a schematic structural diagram of the inner thread sealing cover itself in the utility model.

[0019] in:

[0020] 1. Packaging shell; 2. Internal thread sealing cover; 3. Air inlet; 4. Horizontal positioning block; 5. Side positioning frame; 6. Fastening hole; 7. Limiting mechanism; 8. Nut; 9. Adjustment mechanism; 10. External threaded pipe; 11. Equipment bracket; 12. Power supply line; 13. External threaded sleeve; 14. Internal sealing ring; 15. Gas sensor chip; 16. External groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, the gas sensor packaging structure includes a packaging shell 1, an inner thread sealing cover 2 is arranged at the top of the packaging shell 1, and limiting mechanisms 7 are arranged on both sides of the inner thread sealing cover 2. The limiting mechanisms 7 position the packaging shell 1 and the corresponding equipment to avoid gas leakage in the packaging shell 1. An adjusting mechanism 9 is arranged inside the packaging shell 1. The adjusting mechanism 9 positions and adjusts the instrument used for gas sensing to facilitate the replacement and recycling of the sensor.

[0023] In this embodiment, the limiting mechanism 7 includes an air inlet hole 3, a horizontal positioning block 4, a side positioning frame 5, a fastening hole 6 and a nut 8. The top of the inner thread sealing cover 2 is penetrated with an air inlet hole 3, and the two sides of the inner thread sealing cover 2 are symmetrically provided with horizontal positioning blocks 4. The top of the horizontal positioning block 4 is connected to the side positioning frame 5, and the bottom end of the side positioning frame 5 is welded with a nut 8. The top of the side positioning frame 5 is penetrated with a fastening hole 6.

[0024] In this embodiment, the side positioning frame 5 is connected to one side of the inner thread sealing cover 2 via a horizontal positioning block 4 provided at the bottom end, and the two sides of the packaging shell 1 are positioned by the side positioning frame 5, so as to facilitate quick disassembly or adjustment of the packaging shell 1.

[0025] In this embodiment, the adjustment mechanism 9 includes an external threaded tube 10, a device holder 11, a power supply line 12, an external threaded sleeve 13, an inner sealing ring 14 and an outer groove 16. The internal part of the external threaded tube 10 is connected with the power supply line 12, and the output end of the power supply line 12 is connected with a gas sensor chip 15. The outer side of the external threaded tube 10 is connected with the device holder 11, and the surface of the device holder 11 is provided with an outer groove 16. The top of the packaging shell 1 is connected with the external threaded sleeve 13, and the inner sealing ring 14 is arranged directly above the external threaded sleeve 13. The device holder 11 is positioned and adjusted by the external threaded tube 10, and the sensing height is adjusted.

[0026] In this embodiment, the device holder 11 is connected to the bottom of the gas sensor chip 15 via an outer groove 16 opened at the top, and the bottom of the gas sensor chip 15 is positioned by the device holder 11, which facilitates the positioning and disassembly of the bottom of the gas sensor chip 15.

[0027] In this embodiment, the device bracket 11 is connected to the internal thread sealing cover 2 through the external threaded tube 10 that penetrates and connects, and the height of the gas sensor chip 15 is adjusted through the external threaded tube 10, thereby adjusting the gas sensing position.

[0028] This gas sensor packaging structure includes the following work contents in practical application:

[0029] Step 1: The operator first inserts the bottom end of the gas sensor chip 15 into the surface of the outer groove 16 and tightens it with screws, connects the external power supply line 12 to the input end of the gas sensor chip 15, and inserts and connects the device bracket 11 to the external threaded tube 10, adjusts the spacing of the device bracket 11, and adjusts the height of the device bracket 11, so as to meet the requirements of inspection and installation of packaging shells 1 with different diameters or widths;

[0030] Step 2: The operator inserts the inner thread sealing cover 2 and the outer threaded tube 10 into the interior of the packaging shell 1, so that the device bracket 11 and the gas sensor chip 15 are connected to the bottom end of the packaging shell 1, and the inner sealing ring 14 provided at the bottom end of the inner thread sealing cover 2 and the top end of the outer thread sleeve 13 are fitted to each other, and the inner thread sealing cover 2 and the outer thread sleeve 13 are rotated and sealed to prevent the internal gas of the packaging shell 1 from leaking;

[0031] Step 3: When it is necessary to connect the packaging shell 1 with the device housing, the operator aligns the air inlet 3 provided at the top of the inner thread sealing cover 2 with the device, fits the fastening hole 6 provided at the top of the side positioning frame 5 with the device, inserts the screw into the fastening hole 6, and fastens the side positioning frame 5 and the sensor housing with the nut 8;

[0032] Step 4: The operator inserts the air intake pipe into the air intake hole 3, and seals the air intake hole 3 and the pipe joint with a sealant. When the gas is injected into the gas sensor chip 15, the gas sensor chip 15 determines the content of the internal components of the gas.

[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Gas sensor packaging structure, characterized in that: The invention comprises a packaging shell (1), wherein an inner thread sealing cover (2) is arranged at the top of the packaging shell (1), and limiting mechanisms (7) are arranged on both sides of the inner thread sealing cover (2), wherein the limiting mechanisms (7) perform positioning processing on the packaging shell (1) and corresponding equipment to prevent gas leakage from occurring in the packaging shell (1), and wherein an adjustment mechanism (9) is arranged inside the packaging shell (1), and wherein the adjustment mechanism (9) performs positioning and adjustment processing on an instrument for gas sensing to facilitate replacement and recycling of the sensor.

2. The gas sensor packaging structure according to claim 1, characterized in that: The limiting mechanism (7) comprises an air inlet hole (3), a transverse positioning block (4), a side positioning frame (5), a fastening hole (6) and a nut (8); the top end of the inner thread sealing cover (2) is provided with an air inlet hole (3); the two sides of the inner thread sealing cover (2) are symmetrically provided with transverse positioning blocks (4); the top end of the transverse positioning block (4) is connected to the side positioning frame (5); the bottom end of the side positioning frame (5) is welded to a nut (8); and the top end of the side positioning frame (5) is provided with a fastening hole (6).

3. The gas sensor packaging structure according to claim 2, characterized in that: The side positioning frame (5) is connected to one side of the inner thread sealing cover (2) via a horizontal positioning block (4) arranged at the bottom end.

4. The gas sensor packaging structure according to claim 1, characterized in that: The regulating mechanism (9) comprises an externally threaded tube (10), a device bracket (11), a power supply line (12), an external threaded sleeve (13), an inner sealing ring (14) and an outer groove (16); the power supply line (12) is connected to the inside of the externally threaded tube (10); the output end of the power supply line (12) is connected to a gas sensor chip (15); the outer side of the externally threaded tube (10) is connected to the device bracket (11); the surface of the device bracket (11) is provided with an outer groove (16); the top end of the packaging shell (1) is connected to the external threaded sleeve (13); and the inner sealing ring (14) is arranged directly above the external threaded sleeve (13).

5. The gas sensor packaging structure according to claim 4, characterized in that: The device bracket (11) is connected to the bottom end of the gas sensor chip (15) via an outer groove (16) provided at the top end.

6. The gas sensor packaging structure according to claim 4, characterized in that: The equipment bracket (11) is connected to the internal thread sealing cover (2) via a through-connected external threaded tube (10).

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