Miniature gas sensor module used on gas detector
By designing miniature sensor modules and simplifying connection methods, the problems of large sensor size and complex connections have been solved, achieving miniaturization, stable connection and low-cost production, thereby improving detection accuracy and equipment reliability.
Patent Information
- Application Number
- CN202520090674.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing gas sensors are bulky, have complex connections, are susceptible to physical damage, have high production costs and poor consistency, making them difficult to integrate into miniaturized or portable devices.
It adopts a miniature sensor module design, uses elastic clips to fix the sensor, simplifies circuit connection through side contact connection and horizontal surface mount pin header connector to avoid soldering, and adopts an integrated support housing to reduce costs.
This has enabled the miniaturization, stable connection, and low-cost production of sensors, improving detection accuracy and equipment reliability while reducing production complexity and the risk of physical damage.
Smart Images
Figure CN223940901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas detector technology, and in particular to a miniature gas sensor module used in a gas detector. Background Technology
[0002] Existing gas detectors typically include gas sensors to detect the presence of a specific gas or measure its concentration. These sensors are crucial for safety and are widely used in fields such as coal mines, petroleum, chemicals, medical, transportation, and homes. However, existing gas sensors have some limitations:
[0003] Traditional gas sensors are bulky, making them unsuitable for integration into miniaturized or portable gas detection devices.
[0004] The connection between the sensor and the circuit board is complex, involving processes such as soldering, which increases production costs and complexity.
[0005] Under vibration or shock, existing sensors may shift, affecting detection accuracy and equipment reliability. During assembly, miniature sensors may suffer physical damage due to direct contact or improper operation.
[0006] Other sensor modules use metal springs or pins for electrical connections, and these components may lose conductivity due to wear or corrosion during long-term operation.
[0007] The assembly process of existing sensor modules requires manual soldering, which not only increases production costs but may also affect product consistency and quality. Utility Model Content
[0008] To address the problems existing in the prior art, this utility model provides a miniature gas sensor module for use in a gas detector.
[0009] To achieve the above objectives, the technical solution of this utility model is as follows:
[0010] This utility model provides a miniature gas sensor module for use in a gas detector, comprising: a flexible clip, a miniature sensor, a main body, an adapter board, and a PCBA board;
[0011] The micro-sensor is disposed within the main body; the elastic clip is inserted into the main body to fix the micro-sensor; the micro-sensor has a side contact connection conductive part;
[0012] The adapter board is located inside one side of the main body and placed on the PCBA board. The adapter board is provided with a spring-loaded connector and a connection interface. The spring-loaded connector is used to connect to the side contact and conductive part of the micro sensor, and the connection interface is used to connect to the PCBA board for current.
[0013] The PCBA board is located at the bottom of the main body, and the PCBA board is also provided with a horizontal surface mount pin header connector, which is connected to the connection interface.
[0014] Preferably, the main body has an internal support; the micro-sensor is mounted on the support.
[0015] Preferably, the top of the main body is provided with a locking slot, and the elastic locking element is disposed on the locking slot.
[0016] Preferably, the elastic locking element includes an elastic retaining ring and a gasket; the elastic retaining ring and the gasket are disposed on the locking position from top to bottom; the upper part of the elastic retaining ring abuts against the top wall of the locking position, and the lower part of the elastic retaining ring abuts against the gasket.
[0017] Preferably, the horizontal surface mount pin header connector is fixed to the PCBA board by surface mounting.
[0018] Preferably, the bottom of the PCBA board is further provided with a pin, the end of which extends through the bottom of the main body.
[0019] The technical solution of this utility model has the following beneficial effects:
[0020] Miniaturized design: The sensor module of this utility model adopts a miniaturized design, which is easy to integrate into miniaturized or portable gas detection devices. Within a miniature space, the compact design of the module allows for efficient gas detection functions within a limited space, making it suitable for miniaturized or portable gas detection devices.
[0021] Simplified connection method: The design of the side contact connection conductor and spring-type connector simplifies the connection method between the sensor and the circuit board, avoids complex soldering processes, reduces production costs and complexity, and avoids special hardware springs, elastic pins or FPC cables, etc., which are relatively more stable in conductivity, lower in cost and easier to obtain.
[0022] The combination of elastic retaining rings and gaskets not only provides stable fixation for the microsensors, but the presence of gaskets also reduces physical damage to the microsensors during assembly, while reducing wear when the elastic retaining rings rotate or move.
[0023] The adapter board and the PCBA board use horizontal surface mount pin header connectors, which serve to fix the adapter board and conduct electrical signals.
[0024] Improved production efficiency: The entire module requires no manual soldering and can be assembled using a surface-mount method. Furthermore, the absence of connecting wires not only improves production efficiency but also reduces production costs, making the module more economical and practical.
[0025] Cost reduction: The support shell adopts a one-piece design, which reduces the use of materials and lowers costs. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0027] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;
[0028] Figure 3 This is a cross-sectional view of the structure of this utility model. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] Reference Figures 1 to 3 This utility model provides a miniature gas sensor structure for side connection on a gas detector, including: elastic clip, miniature sensor 3, main body 4, adapter board 5, and PCBA board 6;
[0035] The micro-sensor is disposed inside the main body; the elastic clip is inserted into the main body to fix the micro-sensor 3; the micro-sensor 3 has a side contact connection conductive part 301;
[0036] The adapter board 5 is disposed on one side of the main body 4 and placed on the PCBA board 6. The adapter board 5 is provided with a spring-loaded connector 50 and a connection interface 55. The spring-loaded connector 50 is used to connect to the side contact connection conductive part 301 of the micro sensor 3, and the connection interface 55 is used to connect to the PCBA board 6 for current.
[0037] The PCBA board 6 is located at the bottom of the main body. The PCBA board 6 also has a horizontal surface mount pin header connector 7, which connects to the connection interface 55. The design of the side contact connection conductive part 301 allows the miniature sensor 3 to make contact with the spring-loaded connector 50 on the adapter board 5, avoiding the need for dedicated metal springs, elastic pins, or FPC cables. This design offers more stable conductivity, lower cost, and easier accessibility.
[0038] This connection method avoids soldering, simplifies the production process, and reduces costs. The use of horizontal surface mount pin header connectors 7 makes the connection between PCBA board 6 and adapter board 5 more stable, reduces the failure rate of electrical connections, and improves the overall electrical performance of the module. The design of the entire module allows for surface mount assembly without manual soldering, which not only improves production efficiency but also reduces production costs, making the module more economical and practical.
[0039] Furthermore, the main body 4 has an internal support; the micro sensor 3 is mounted on the support, and the module size of the main body 4 is limited to φ20x16.6mm; the main body 4 is an integral piece, which does not require separation to reduce materials and can reduce costs, and does not require disassembly or the addition of an internal support for fixing the micro sensor 3.
[0040] Furthermore, the top of the main body 4 is provided with a locking position, and the elastic clip is set on the locking position to facilitate quick installation and fixation of the elastic clip.
[0041] Furthermore, the elastic retaining element includes an elastic retaining ring 1 and a gasket 2; the elastic retaining ring 1 and the gasket 2 are arranged from top to bottom on the retaining position; the upper part of the elastic retaining ring 1 abuts against the top wall of the retaining position, and the lower part of the elastic retaining ring 1 abuts against the gasket 2; the gasket 2 is used between the elastic retaining ring 1 and the micro sensor to avoid damaging the micro sensor during assembly and to prevent wear on the micro sensor during rotation; the combined use of the elastic retaining ring 1 and the gasket 2 not only provides stable fixation for the micro sensor 3, but also reduces physical damage to the micro sensor during assembly, and reduces wear when the elastic retaining ring 1 rotates or moves.
[0042] Furthermore, the horizontal surface mount pin connector is fixed to the PCBA board 6 by surface mounting. The bottom of the PCBA board 6 is also provided with a pin 8, the end of which penetrates through the bottom of the main body, so that the module can be easily connected to other circuits or modules, thereby improving the versatility and expandability of the module.
[0043] Working principle of this utility model:
[0044] First, insert the adapter board 5 into the PCBA board 6 to form a whole, and then put them into the main body 4 at the bottom. The micro sensor 3 is inserted into the main body 4 through the opening on the top of the main body 4, then the gasket 2 is installed, and finally the elastic retaining ring is inserted to fix it.
[0045] The sensor module of this invention adopts a miniature design with a size of φ20x16.6mm, which makes it easy to integrate into miniaturized or portable gas detection devices. The compact design of the module in a miniature space allows for efficient gas detection functions within a limited space, making it suitable for miniaturized or portable gas detection devices.
[0046] Simplified connection method: The design of the side contact connection conductor and spring-type connector simplifies the connection method between the sensor and the circuit board, avoids complex soldering processes, reduces production costs and complexity, and avoids special hardware springs, elastic pins or FPC cables, etc., which are relatively more stable in conductivity, lower in cost and easier to obtain.
[0047] The adapter board and the PCBA board use horizontal surface mount pin header connectors, which serve to fix the adapter board and conduct electrical signals.
[0048] Improved production efficiency: The entire module requires no manual soldering and can be assembled using a surface-mount method. Furthermore, the absence of connecting wires not only improves production efficiency but also reduces production costs, making the module more economical and practical.
[0049] Cost reduction: The support shell adopts a one-piece design, which reduces the use of materials and lowers costs.
[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A miniature gas sensor module for use in a gas detector, characterized in that, include: Flexible card, miniature sensor, main body, adapter board, PCBA board; The micro-sensor is disposed within the main body; the elastic clip is inserted into the main body to fix the micro-sensor; the micro-sensor has a side contact connection conductive part; The adapter board is located inside one side of the main body and placed on the PCBA board. The adapter board is provided with a spring-loaded connector and a connection interface. The spring-loaded connector is used to connect to the side contact and conductive part of the micro sensor, and the connection interface is used to connect to the PCBA board for current. The PCBA board is located at the bottom of the main body, and the PCBA board is also provided with a horizontal surface mount pin header connector, which is connected to the connection interface.
2. The miniature gas sensor module for use in a gas detector according to claim 1, characterized in that, The main body has a support frame inside; the micro-sensor is mounted on the support frame.
3. The miniature gas sensor module for use in a gas detector according to claim 2, characterized in that, The top of the main body is provided with a locking slot, and the elastic locking element is set on the locking slot.
4. The miniature gas sensor module for use in a gas detector according to claim 3, characterized in that, The elastic locking element includes an elastic retaining ring and a gasket; the elastic retaining ring and the gasket are arranged on the locking position from top to bottom; the upper part of the elastic retaining ring abuts against the top wall of the locking position, and the lower part of the elastic retaining ring abuts against the gasket.
5. The miniature gas sensor module for use in a gas detector according to claim 1, characterized in that, The horizontal surface mount pin header connector is fixed to the PCBA board via a surface mount.
6. The miniature gas sensor module for use in a gas detector according to claim 5, characterized in that, The bottom of the PCBA board is also provided with a pin, the end of which extends through the bottom of the main body.