MEMS sensor with replaceable pins

Abstract

The utility model relates to a pin-replaceable MEMS sensor, comprising a housing, a pin-replaceable MEMS chip, a pin-replaceable MEMS chip, a pin-replaceable MEMS chip, a pin-replaceable MEMS chip and a pin-replaceable MEMS chip, the base material plate covers the bottom of the shell, and mounting grooves are formed in the periphery of the bottom of the base material plate; a quick assembly convenient to disassemble and assemble is arranged between the top end of the pin line and the mounting groove; according to the sensor, the pin replaceable design is adopted, and a user can easily replace the pin when the pin of the sensor is aged and damaged or needs to adapt to different circuits through a convenient connection mechanism of the plug pin block and the base material plate, so that the maintenance convenience of the sensor is greatly improved, and the maintenance cost is reduced. The whole sensor does not need to be disassembled or sent back to an original factory for maintenance, so that the maintenance cost and time are reduced, meanwhile, the replaceability of the pins also increases the flexibility of the sensor, and the sensor can more widely adapt to different application scenes and circuit requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a MEMS sensor with replaceable pins. Background Art

[0002] In the field of sensor technology, MEMS (micro-electromechanical systems) sensors have been widely used in consumer electronics, automotive industry, medical equipment, aerospace and other fields due to their advantages such as miniaturization, low power consumption, high sensitivity and high reliability. MEMS sensors sense external physical quantities through the deformation or vibration of micro-mechanical structures and convert them into electrical signals, thereby realizing various measurement and control functions.

[0003] However, traditional MEMS sensors often have limitations in pin design. Once a pin is damaged or aged, the entire sensor usually needs to be disassembled or replaced, which not only increases maintenance costs but may also affect the overall performance and life of the sensor. In addition, different application scenarios and circuit requirements have different requirements for pins, and traditional sensors have shortcomings in pin adaptability.

[0004] In summary, how to replace pin lines and sensors has become an urgent problem that researchers in this field need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to realize the replacement of the pin line and the sensor;

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The present invention is a MEMS sensor with replaceable pins, comprising: a housing with an opening provided at the center of its top surface; a substrate plate covering the bottom of the housing, with mounting grooves provided around the bottom; and a pin line, a quick assembly for easy assembly and disassembly provided between the top end and the mounting groove; the quick assembly comprising: a pin block provided at the top end of the pin line and adapted to be inserted into the mounting groove, with limiting grooves provided inwardly on both sides of the pin block, and engaging grooves provided inwardly on opposite side walls of the limiting groove; an elastic plate, with rotating grooves provided on both sides of its middle portion. The shaft is hinged to the two side walls of the limiting groove; a clamping block is arranged on both sides of the installation groove, and a first spring is arranged between the clamping block and the installation groove; when the pin line and the substrate plate are installed, the pin block is inserted into the installation groove, and the clamping block enters the clamping groove, and at this time the upper end of the elastic plate rotates inward due to the clamping block; when the pin line and the substrate plate are disassembled, the lower end of the elastic plate is pressed, and the upper end of the elastic plate rotates outward, so that the clamping block is disengaged from the clamping groove, and the pin block and the installation groove are separated.

[0008] In order to achieve the positioning and matching between the installation slot and the latch block, the utility model adopts a method in which a first connecting end is provided at the bottom of the installation slot; a second connecting end is provided at the top of the latch block to match the first connecting end;

[0009] In order to facilitate the movement of the elastic sheet to separate the clamping block from the clamping slot, the utility model provides a second spring between the inner side surface of the lower end of the elastic plate and the limiting slot.

[0010] In order to realize the connection between the substrate plate and the shell, the utility model adopts a filter provided at the opening of the shell, and the substrate plate and the shell are connected by threads.

[0011] In order to ensure the sealing performance between the substrate plate and the housing, the utility model adopts a first sealing gasket that is provided on the substrate plate and seals with the housing.

[0012] In order to illustrate the installation position of components on the substrate board, the utility model adopts a MEMS thermopile infrared sensor provided on the substrate board, and the filter is located above the MEMS thermopile infrared sensor; an analog-to-digital converter is provided at one end of the MEMS thermopile infrared sensor, and an NTC is provided at the other end of the MEMS thermopile infrared sensor.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The sensor adopts a pin-replaceable design. Through the convenient connection mechanism between the pin block and the substrate board, users can easily replace the sensor pins when they age, are damaged, or need to be adapted to different circuits. This design greatly improves the maintenance convenience of the sensor, eliminating the need to disassemble the entire sensor or send it back to the original manufacturer for repair, thereby reducing maintenance costs and time. At the same time, the replaceable pins also increase the flexibility of the sensor, enabling it to more widely adapt to different application scenarios and circuit requirements.

[0015] Pins are key components connecting sensors to external circuits, and their performance and stability have a significant impact on the overall performance of the sensor. By adopting a pin-replaceable design and utilizing components such as an elastic plate, a second limiting spring, a snap-on block, and a first limiting spring during the insertion and fixation of the pin block, a stable and reliable connection is achieved. This design not only ensures that the pins will not loosen due to vibration or external force during operation, but also enables quick pin replacement when necessary, thereby avoiding sensor failures caused by pin problems. Therefore, this pin-replaceable MEMS sensor can ensure high stability and reliability during long-term operation, providing users with continuous and accurate measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the shell structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the substrate plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the clamping block of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the quick assembly of the utility model.

[0022] In the figure: 1. Housing; 2. Base material board; 3. Pin wire; 4. Filter; 5. Bolt; 6. First sealing gasket; 7. MEMS thermopile infrared sensor; 8. Resistor; 9. Analog-to-digital converter; 10. NTC; 11. First connecting end; 12. Second sealing gasket; 13. Snap-fit ​​block; 14. First spring; 15. Latch block; 16. Second connecting end; 17. Elastic plate; 18. Rotating shaft; 19. Second spring; 20. Snap-fit ​​groove; 21. Mounting hole. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0024] See also Figure 1-5 The present invention provides a pin-replaceable MEMS sensor, comprising a housing 1, an opening being provided at the center of the upper end of the housing 1, a substrate plate 2 being movably mounted at the lower end of the housing 1, mounting grooves being provided around the lower end surface of the substrate plate 2, and latch blocks 15 being mounted inside the mounting grooves, and pin wires 3 being fixedly connected to the lower ends of the latch blocks 15, wherein quick components are respectively provided on both sides of the outer ends of the latch blocks 15.

[0025] The filter 4 is fixedly mounted in the opening at the upper end of the housing 1 , and a plurality of threaded holes are respectively provided around the lower end surface of the housing 1 .

[0026] A first sealing gasket 6 is fixedly installed on the upper end surface of the substrate plate 2. A number of through holes are respectively opened around the upper end surface of the substrate plate 2, and the several through holes are respectively arranged corresponding to the threaded holes opened at the lower end of the shell 1. Bolts 5 are sleeved inside the through holes, and the lower ends of the bolts 5 are respectively threadedly connected to the inside of the threaded holes. A MEMS thermopile infrared sensor 7 is fixedly installed in the center of the upper end of the substrate plate 2, and resistors 8 are respectively provided on both sides of the MEMS thermopile infrared sensor 7, an analog-to-digital converter 9 is provided at one end of the MEMS thermopile infrared sensor 7, and an NTC 10 is provided at the other end of the MEMS thermopile infrared sensor 7.

[0027] Second sealing gaskets 12 are respectively provided on the outer end surfaces of the mounting grooves opened around the lower end of the substrate plate 2, and grooves are respectively opened on the opposite sides of the inner wall of the mounting grooves. Clamping blocks 13 are respectively provided inside the grooves, and the front end surfaces of the two clamping blocks 13 are arranged opposite to each other. A plurality of first springs 14 are respectively arranged and connected on the rear end surfaces of the clamping blocks 13, and the other ends of the first springs 14 are fixedly connected to the inner bottom surface of the groove.

[0028] The two side surfaces of the latch block 15 are respectively provided with inwardly-facing engaging grooves 20, and the lower ends of the engaging grooves 20 are respectively provided with limiting grooves, and the opposite sides of the inner walls of the limiting grooves are respectively provided with mounting holes 21 for mounting the rotating shaft 18. A second connecting end 16 is provided at the center of the upper end of the latch block 15, wherein a first connecting end 11 is provided at the center of the inner bottom surface of the mounting groove, and the first connecting end 11 and the second connecting end 16 are correspondingly sleeved.

[0029] The quick assembly includes an elastic plate 17, a rotating shaft 18 and a second spring 19. The elastic plate 17 is correspondingly installed inside the limiting groove. The upper end of the elastic plate 17 extends through the inside of the limiting groove to the inner center of the clamping groove. The lower end of the elastic plate 17 extends through the inside of the limiting groove to the lower end of the latch block 15. The rotating shaft 18 is fixedly installed on the central surfaces of both sides of the elastic plate 17, and the outer ends of the rotating shaft 18 are respectively sleeved inside the mounting hole 21. The second spring 19 is fixedly connected to the lower end of the inner surface of the elastic plate 17, and the other end of the second spring 19 is fixedly connected to the center of the bottom surface of the limiting groove.

[0030] The engaging slots 20 on both sides of the engaging block 13 and the latch block 15 are correspondingly arranged, and the outer ends of the engaging block 13 are respectively engaged with the inner portions of the engaging slots 20 .

[0031] When the embodiment of the present application is in use: the housing 1 serves as the main protective structure of the sensor, the opening at the upper end of which is used to receive and filter external infrared radiation, and a filter 4 is fixedly installed inside to filter infrared light of a specific wavelength to improve the sensitivity and accuracy of the sensor. The threaded hole at the lower end of the housing 1 is connected to the through hole on the substrate plate 2 by a bolt 5 to achieve a stable assembly. The substrate plate 2 serves as a carrier of the internal components of the sensor, and a first sealing gasket 6 is installed at the upper end to ensure the sealing between the housing 1 to prevent external moisture or dust from entering and affecting the performance of the sensor. A MEMS thermopile infrared sensor 7 is fixed in the center of the substrate plate 2, which is the core component of the sensor, capable of responding to infrared radiation and converting it into an electrical signal. The pin line 3 is connected to the substrate through the latch block 15. Board 2 is connected to provide power input and signal output for the sensor. The design of the plug block 15 allows replacement when necessary, which increases the flexibility and maintainability of the sensor. When external infrared radiation enters the sensor through the filter 4, it is received by the MEMS thermopile infrared sensor 7. The thermopile is composed of multiple thermocouples connected in series. When the infrared radiation causes the sensor temperature to change, the thermocouple will generate a thermoelectric potential difference, thereby outputting an electrical signal. The sensed electrical signal is initially filtered and stabilized by the resistor 8, and then transmitted to the analog-to-digital converter 9. The analog-to-digital converter converts the continuous analog signal into a discrete digital signal to facilitate subsequent digital processing and analysis. The NTC10 is used for temperature compensation. It adjusts the circuit parameters according to the changes in ambient temperature. When the latch block 15 is installed in the installation groove, the two side surfaces of the latch block 15 will gradually approach the clamping block 13. As the latch block 15 goes deeper, the clamping block 13 will gradually be squeezed into the groove and the first spring 14 will be compressed. When the clamping groove 20 of the latch block 15 corresponds to the position of the clamping block 13, due to the elastic force of the first spring 14, the clamping block 13 will quickly pop out and snap into the clamping groove 20 to achieve fixation. During the installation of the latch block 15, the spring The lower end of the elastic plate 17 will be squeezed by the latch block 15 and rotated outward. When the clamping block 13 is clamped into the clamping groove 20, the lower end of the elastic plate 17 begins to rebound due to the loss of squeezing. However, due to the limitation of the rotating shaft 18 and the mounting hole 21, the elastic plate 17 maintains a certain tilt angle. This tilt angle makes the upper end part of the elastic plate 17 fit more closely to the bottom of the clamping groove, thereby increasing the stability of the clamping. At the same time, the second spring 19 also plays an auxiliary fixing role. It is connected between the lower end of the inner side surface of the elastic plate 17 and the bottom surface of the limiting groove, providing a certain support and resilience for the elastic plate 17. When the latch block 15 needs to be removed, the lower end part of the elastic plate 17 can be pressed downward, which will cause the lower end of the elastic plate 17 to rotate inward.The lower end of the elastic plate 17 is driven inward by the rotating shaft 18, and the upper end of the elastic plate 17 is rotated outward. The rotation process of the upper end squeezes the clamping block 13 and makes it disengage from the clamping groove 20, thereby realizing the removal of the latch block 15 and the replacement of the lead wire.

[0032] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A pin-replaceable MEMS sensor, characterized in that: include: The outer shell has an opening extending through the center of the top surface thereof; A substrate plate is covered on the bottom of the housing and has mounting grooves formed around the bottom; and a pin line, wherein a quick assembly for easy disassembly and assembly is provided between the top end of the pin line and the mounting groove; The shortcut component includes: A latch block is provided at the top of the pin line and is suitable for being inserted into the mounting groove, wherein both sides of the latch block are provided with limiting grooves inwardly, and opposite side walls of the limiting groove are provided with engaging grooves inwardly; The elastic plate has rotating shafts on both sides of its center and is hinged to the two side walls of the limiting groove; A clamping block is provided on both sides of the mounting groove, and a first spring is provided between the clamping block and the mounting groove; When the pin wire is installed on the substrate plate, the latch block is inserted into the installation groove, and the clamping block enters the clamping groove. At this time, the upper end of the elastic plate rotates inward due to the insertion of the clamping block. When the pin line is removed from the substrate plate, the lower end of the elastic plate is pressed, and the upper end of the elastic plate rotates outward, acting on the clamping block to disengage the clamping block from the clamping slot, thereby separating the pin block and the mounting slot.

2. The pin-replaceable MEMS sensor according to claim 1, characterized in that: The bottom of the mounting groove is provided with a first connecting end; The top of the latch block is provided with a second connecting end that cooperates with the first connecting end.

3. The pin-replaceable MEMS sensor according to claim 1, wherein: A second spring is provided between the inner side surface of the lower end of the elastic plate and the limiting groove.

4. The pin-replaceable MEMS sensor according to claim 1, wherein: An optical filter is provided at the opening of the shell, and the substrate plate is connected to the shell via threads.

5. The pin-replaceable MEMS sensor according to claim 1, wherein: The substrate plate is provided with a first sealing gasket which is sealed with the housing.

6. The pin-replaceable MEMS sensor according to claim 4, characterized in that: A MEMS thermopile infrared sensor is provided on the substrate plate, and the filter is located above the MEMS thermopile infrared sensor; An analog-to-digital converter is provided at one end of the MEMS thermopile infrared sensor, and an NTC is provided at the other end of the MEMS thermopile infrared sensor.

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