Sealing structure of quartz flexible accelerometer

Abstract

The utility model discloses a sealing structure of a quartz flexible accelerometer, comprising a quartz flexible accelerometer and a housing, the periphery of the quartz flexible accelerometer is provided with a sealing ring, the upper parts of the two sides of the sealing ring are provided with convex blocks, and the upper part of the sealing ring is provided with an integrated circuit board; the shell comprises a lower shell body arranged on the periphery of the sealing ring and an upper shell body arranged above the lower shell body, mounting holes are formed in the joints of the two sides of the upper shell body and the lower shell body, a water absorption piece is arranged above the upper shell body, and the bottom of the water absorption piece makes contact with the top of the upper shell body. By adopting the sealing structure of the quartz flexible accelerometer, the device can be better sealed, so that the device can adapt to a relatively severe working environment, the service life of the device is prolonged, and the proceeding of measurement work is better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of accelerometers, in particular to a sealing structure of a quartz flexible accelerometer. Background Art

[0002] An accelerometer is an instrument for measuring acceleration. Acceleration measurement is an important topic in engineering technology. When an object has a large acceleration, the object and the instruments and equipment it carries and other objects without relative acceleration are all subject to the same acceleration force, that is, dynamic load. To know the dynamic load, the acceleration must be measured. The working principle of the quartz flexible accelerometer is to use the force feedback principle to obtain a current proportional to the input acceleration, and obtain the input acceleration information by sampling the current.

[0003] However, the quartz flexible accelerometer in the prior art does not have a special sealing structure. With the continuous expansion of the application field of accelerometers, the continuous changes in environmental pressure, and the continuous improvement of the harshness of working conditions, higher requirements are placed on their sealing and environmental adaptability. The existing structural form of accelerometers will not be able to meet the users' increasingly increased usage requirements due to the lack of a sealing structure. Utility Model Content

[0004] The utility model aims to provide a sealing structure of a quartz flexible accelerometer, which effectively solves the problem that the accelerometer in the prior art cannot meet the harsh working conditions due to the lack of a sealing structure.

[0005] To achieve the above-mentioned purpose, the utility model provides a sealing structure of a quartz flexible accelerometer, comprising a quartz flexible accelerometer and a housing, wherein a sealing ring is arranged on the periphery of the quartz flexible accelerometer, bumps are arranged above both sides of the sealing ring, and an integrated circuit board is arranged above the sealing ring; the housing comprises a lower shell arranged on the periphery of the sealing ring and an upper shell arranged above the lower shell, mounting holes are arranged at the connection points on both sides of the upper shell and the lower shell, a water absorbent sheet is arranged above the upper shell, and the bottom of the water absorbent sheet is in contact with the top of the upper shell.

[0006] Preferably, the pins above the integrated circuit board pass through the upper shell and the water absorbent sheet to the top of the water absorbent sheet, and the bottom of the integrated circuit board is connected with pins.

[0007] Preferably, a connecting wire is connected above the quartz flexible accelerometer, and one end of the connecting wire away from the quartz flexible accelerometer passes through the sealing ring and is connected to the pin.

[0008] Preferably, grooves matching the protrusions are provided inside both sides of the lower shell.

[0009] Preferably, the quartz flexible accelerometer and the sealing ring are fixedly connected via a connecting piece.

[0010] Therefore, the utility model adopts a sealing structure of a quartz flexible accelerometer of the above structure, and through the coordinated use of a sealing ring, a shell and a water absorbent sheet, the accelerometer can be well sealed so that it can adapt to a relatively harsh working environment. The air medium inside the quartz flexible accelerometer will not leak due to changes in external air pressure, so that the dynamic parameters of the accelerometer remain stable for a long time, extending its service life and better ensuring the progress of the measurement work.

[0011] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a sealing structure embodiment of a quartz flexible accelerometer of the utility model;

[0013] Figure 2 A schematic diagram of a groove of a sealing structure embodiment of a quartz flexible accelerometer of the utility model;

[0014] Figure numerals: 1. quartz flexible accelerometer; 2. sealing ring; 3. bump; 4. integrated circuit board; 5. housing; 51. upper housing; 52. lower housing; 53. mounting hole; 6. absorbent sheet; 7. connecting wire; 8. pin; 9. groove; 10. connector. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0016] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] Example

[0018] like Figure 1 As shown, a sealing structure of a quartz flexible accelerometer includes a quartz flexible accelerometer 1 and a housing 5, wherein a sealing ring 2 is arranged on the periphery of the quartz flexible accelerometer 1, bumps 3 are arranged above both sides of the sealing ring 2, and an integrated circuit board 4 is arranged above the sealing ring 2; the housing 5 includes a lower shell 52 arranged on the periphery of the sealing ring 2 and an upper shell 51 arranged above the lower shell 52, mounting holes 53 are arranged at the connection between the upper shell 51 and the lower shell 52 on both sides, and a water absorbent sheet 6 is arranged above the upper shell 51, the bottom of the water absorbent sheet 6 is in contact with the top of the upper shell 51, and the water vapor around the device is adsorbed by the water absorbent sheet 6 to prevent it from entering the inner cavity of the device.

[0019] The pins above the integrated circuit board 4 pass through the upper shell 51 and the water absorbent sheet 6 to the top of the water absorbent sheet 6, the bottom of the integrated circuit board 4 is connected with a pin 8, the top of the quartz flexible accelerometer 1 is connected with a connecting wire 7, the end of the connecting wire 7 away from the quartz flexible accelerometer 1 passes through the sealing ring 2 and is connected to the pin 8, the connecting wire 7 output by the quartz flexible accelerometer 1 is connected to the integrated circuit board 4 through the pin 8, that is, one end of the pin 8 is connected to the connecting wire 7 output by the quartz flexible accelerometer 1, and the other end is connected to the integrated circuit board 4, thereby forming a complete accelerometer.

[0020] The inside of both sides of the lower shell 52 is provided with grooves 9 adapted to the protrusions 3, such as Figure 2 As shown, the protrusion 3 is clamped in the groove 9 to better achieve fixation. The quartz flexible accelerometer 1 and the sealing ring 2 are fixedly connected by a connector 10. The connector 10 can be epoxy glue or any material used for fixing. The sealing ring 2 is better fixed, and the quartz flexible accelerometer 1 fixed therein can be stably fixed.

[0021] When the device is in use, the sealing ring 2 fully seals the quartz flexible accelerometer 1, and the protrusion 3 of the sealing ring 2 is clamped in the groove 9 of the lower shell 52 to fix the sealing ring 2. Then the upper shell 51 is snapped onto the lower shell 52, and the upper shell 51 and the lower shell 52 are fixedly connected through the mounting hole 53 to achieve the sealed packaging of the outer shell 5. The data of the quartz flexible accelerometer 1 is transmitted through the connecting wire 7 and the pin 8.

[0022] Therefore, the utility model adopts a sealing structure of a quartz flexible accelerometer of the above structure, which can better seal the device, enable it to adapt to a relatively harsh working environment, extend its service life, and better ensure the measurement work.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A sealing structure of a quartz flexible accelerometer, characterized in that: It comprises a quartz flexible accelerometer and a shell, wherein a sealing ring is arranged on the periphery of the quartz flexible accelerometer, bumps are arranged above both sides of the sealing ring, and an integrated circuit board is arranged above the sealing ring; the shell comprises a lower shell arranged on the periphery of the sealing ring and an upper shell arranged above the lower shell, mounting holes are arranged at the connection between the upper shell and the lower shell on both sides, a water absorbent sheet is arranged above the upper shell, and the bottom of the water absorbent sheet is in contact with the top of the upper shell.

2. The sealing structure of a quartz flexible accelerometer according to claim 1, characterized in that: The pins above the integrated circuit board pass through the upper shell and the water absorbent sheet to the top of the water absorbent sheet, and the bottom of the integrated circuit board is connected with pins.

3. The sealing structure of a quartz flexible accelerometer according to claim 2, characterized in that: A connecting wire is connected above the quartz flexible accelerometer, and one end of the connecting wire away from the quartz flexible accelerometer passes through the sealing ring and is connected to the pin.

4. The sealing structure of a quartz flexible accelerometer according to claim 1, characterized in that: Grooves matching the protrusions are arranged inside the two sides of the lower shell.

5. The sealing structure of a quartz flexible accelerometer according to claim 2, characterized in that: The quartz flexible accelerometer and the sealing ring are fixedly connected via a connecting piece.

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