Connecting structure between gas sensor and signal processing mainboard

Abstract

The utility model relates to a connecting structure between a gas sensor and a signal processing mainboard, which comprises the signal processing mainboard (1) arranged in a gas detector (4) and the gas sensor (3) vertically connected with the signal processing mainboard (1) through a connecting circuit board (2), and an elastic connecting piece is arranged between the signal processing mainboard (1) and the circuit board (2). The elastic connecting piece is specifically a POGO Pin needle (102) arranged on the signal processing main board (1), and a POGO Pin needle (102) arranged on the signal processing main board (1). The gold-plated golden finger (201) is arranged on the connecting circuit board (2); and the POGO pin (102) and the gold-plated golden finger (201) are electrically connected through contact. By adopting the connecting structure between the gas sensor and the signal processing mainboard, the problem that the reliability is reduced due to the fact that a cable insulating layer is damaged due to stress in the production process of a flexible cable is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detectors, especially to the field of automatic production and assembly, and specifically refers to a connection structure between a gas sensor and a signal processing main board. Background Art

[0002] Gas detectors are widely used in important fields such as petroleum, chemical industry, food, pharmaceutical, metallurgy, gas, electric power, environmental protection, etc. to ensure personal safety and safe production, and to monitor combustible or toxic and harmful dangerous gases leaked in the production process and storage and transportation facilities.

[0003] A gas detector consists of two major modules, an intelligent gas sensor module and a signal processing main board module. The electrical connection between these two parts is generally realized by a flexible cable connector. Due to the structural form of the gas detector, the sensor and the signal processing main board are generally in a vertical state and separated by a certain distance. Moreover, due to the requirements of intrinsically safe explosion-proof design for this part of the connection, potting and encapsulation are required for a certain distance. Therefore, the following problems exist:

[0004] 1. Due to its form, it is very difficult to achieve batch assembly in automatic production for flexible cables;

[0005] 2. During the assembly process of flexible cables, the outer protective layer is easily scratched by the metal shell, affecting reliability;

[0006] 3. When potting flexible cables, it is necessary to meet the relevant requirements of explosion-proof potting. There needs to be a gap between the cables, resulting in a complex potting process and low production efficiency;

[0007] Based on this, it is necessary to provide a connection method between a gas sensor and a signal processing main board to solve the problems existing in the connection reliability, automatic assembly efficiency, equipment production cost, and low efficiency between the two. Content of the Utility Model

[0008] The purpose of the utility model is to overcome the above-mentioned shortcomings in the prior art and provide a connection structure between a gas sensor and a signal processing main board.

[0009] In order to achieve the above purpose, the connection structure between a gas sensor and a signal processing main board of the utility model is specifically as follows:

[0010] The connection structure between the gas sensor and the signal processing main board is mainly characterized in that the connection structure includes:

[0011] A signal processing main board arranged inside the gas detector, and a gas sensor vertically connected to the signal processing main board through a connection circuit board. Among them, an elastic connecting piece is arranged between the signal processing main board and the connection circuit board.

[0012] Preferably, a PCBA board is further provided on the signal processing main board, and the PCBA board is used for patch or plug-in soldering; and

[0013] A sensor adapter board is further provided on the connection circuit board.

[0014] Preferably, the elastic connecting member is specifically:

[0015] The POGO Pin provided on the PCBA board; and

[0016] The gold-plated fingers provided on the sensor adapter board;

[0017] The POGO Pin and the gold-plated fingers are electrically connected by contact.

[0018] Preferably, a sensor is provided inside the gas sensor, and the sensor is connected to the sensor adapter board.

[0019] Preferably, a cable glue-sealing section is provided between the connection gaps of the connection circuit board and the gas detector, and the cable glue-sealing section is used for explosion protection.

[0020] With the connection structure between the gas sensor and the signal processing main board of the present utility model, by using the connection method of POGO Pin and gold-plated fingers between the gas sensor and the signal processing main board, the problems of reduced reliability caused by damage to the cable insulation layer due to stress during the production process of the flexible cable, complex automated production methods, and high production costs are overcome. At the same time, since the potting process required for explosion protection is simplified, there is no need to separate the multi-strand flexible cable, and the gold finger board can be directly potted, thereby greatly improving the glue potting efficiency and achieving the effect of saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of the connection structure between the gas sensor and the signal processing main board of the present utility model.

[0022] Figure 2 FIG. is another schematic structural diagram of the connection structure between the gas sensor and the signal processing main board of the present utility model.

[0023] Figure 3 FIG. is a schematic structural diagram of the elastic connecting member of the connection structure between the gas sensor and the signal processing main board of the present utility model.

[0024] Figure 4 FIG. is a schematic structural diagram of the gold-plated fingers of the connection structure between the gas sensor and the signal processing main board of the present utility model.

[0025] Reference Numerals

[0026] 1 Signal Processing Main Board

[0027] 101 PCBA Board

[0028] 102 POGO Pin

[0029] 2 Connection Circuit Board

[0030] 201 Gold-plated Finger

[0031] 202 Sensor Adapter Board

[0032] 301 Sensor

[0033] 4 Gas Detector

[0034] 5 Cable Glue Sealing Section Detailed Implementation Manner

[0035] In order to more clearly describe the technical content of the present utility model, the following further description will be made in conjunction with specific embodiments.

[0036] Before detailing the embodiments according to the present utility model, it should be noted that in the following text, the term "comprising", "including" or any other variant is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Please refer to Figure 1 and 2 As shown, the connection structure between the gas sensor of the present utility model and the signal processing main board, wherein the connection structure includes:

[0038] A signal processing main board 1 disposed inside the gas detector 4, and a gas sensor 3 vertically connected to the signal processing main board 1 through a connection circuit board 2, wherein an elastic connection member is disposed between the signal processing main board 1 and the connection circuit board 2.

[0039] As a preferred embodiment of the present utility model, a PCBA board 101 is further disposed on the signal processing main board 1, and the PCBA board 101 is used for surface mounting or plug-in soldering; and

[0040] A sensor adapter board 202 is further disposed on the connection circuit board 2.

[0041] Please refer to Figure 3 and 4As shown, the elastic connecting member is specifically:

[0042] POGO Pin 102 disposed on the PCBA board 101; and

[0043] Gold-plated fingers 201 disposed on the sensor adapter board 202;

[0044] The POGO Pin 102 and the gold-plated fingers 201 are electrically connected by contact.

[0045] As a preferred embodiment of the present invention, a sensor 301 is disposed inside the gas sensor 3, and the sensor 301 is connected to the sensor adapter board 202.

[0046] As a preferred embodiment of the present invention, a cable glue-sealing section 5 is provided between the connection gap between the connection circuit board 2 and the gas detector 4, and the cable glue-sealing section 5 is used for explosion protection. The cable glue-sealing section 5 usually provides a space to fill a certain compound to submerge the cable for the purpose of explosion protection.

[0047] Due to the requirements of the application site, the structural form of the gas detector 4 is mostly as Figure 1 shown. Inside the gas detector 4, the signal processing main board 1 of the housing is perpendicular to the gas sensor 3, and the two are connected by the connection circuit board 2, and glue needs to be potted at the position 5 inside.

[0048] As Figure 3 Figure 4 shown, the signal processing main board 1 and the connection circuit board 2 are connected to the power supply and signals through the contact of the elastic POGO Pin 102 and the gold-plated fingers 201.

[0049] Adopting the connection structure between the gas sensor and the signal processing main board of the present invention, by using the connection method of POGO Pin and gold-plated fingers between the gas sensor and the signal processing main board, it overcomes the problems of reduced reliability, complex automated production methods, and high production costs caused by the damage of the cable insulation layer due to stress during the production process of the flexible cable. At the same time, since the potting process required for explosion protection is simplified, there is no need to separate the multi-strand flexible cable, and the gold finger board can be directly potted, thus greatly improving the glue potting efficiency to achieve the effect of saving energy.

[0050] In this specification, the present invention has been described with reference to its specific embodiments. However, it is obvious that various modifications and transformations can still be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A connection structure between a gas sensor and a signal processing mainboard, characterized in that: The connection structure comprises: A signal processing main board (1) arranged inside a gas detector (4), and a gas sensor (3) vertically connected to the signal processing main board (1) via a connecting circuit board (2), wherein an elastic connecting member is arranged between the signal processing main board (1) and the connecting circuit board (2).

2. The connection structure between the gas sensor and the signal processing mainboard according to claim 1, characterized in that: The signal processing main board (1) is also provided with a PCBA board (101), and the PCBA board (101) is used for performing patch or plug-in welding; and A sensor adapter plate (202) is also provided on the connecting circuit board (2).

3. The connection structure between the gas sensor and the signal processing mainboard according to claim 2, characterized in that: The elastic connecting member is specifically: A POGO Pin (102) disposed on the PCBA board (101); and A gold-plated gold finger (201) disposed on the sensor adapter plate (202); The POGO Pin (102) and the gold-plated gold finger (201) are electrically connected through contact.

4. The connection structure between the gas sensor and the signal processing mainboard according to claim 3, characterized in that: A sensor (301) is arranged inside the gas sensor (3), and the sensor (301) is connected to the sensor adapter plate (202).

5. The connection structure between the gas sensor and the signal processing mainboard according to claim 1, characterized in that: A cable seal section (5) is provided between the connection gap between the connection circuit board (2) and the gas detector (4), and the cable seal section (5) is used for explosion prevention.

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