Pressure sensor packaging structure
The multi-layer sealing structure of the upper and lower rotating sealing components combined with the sponge plate solves the problem of liquid penetration of the pressure sensor in high temperature and high pressure environments, and realizes the maintainability and service life of the sensor.
Patent Information
- Application Number
- CN202422953226.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing pressure sensors are prone to liquid penetration in high-temperature and high-pressure environments, causing sensor failure. Traditional packaging structures are difficult to ensure normal operation over the long term, increasing maintenance costs.
The upper and lower rotating sealing components are combined with sponge plates to achieve multi-layer sealing through threaded connection and extrusion force. The combined structure of buffer spring and sealing plate allows maintenance without damaging the outer packaging structure. The sponge plate absorbs penetrating liquid to extend its service life.
This allows for maintenance without damaging the outer packaging structure, reduces maintenance costs, and extends the sensor's service life through a multi-layer sealing structure.
Smart Images
Figure CN223346325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure sensors, and more particularly to a pressure sensor packaging structure. Background Art
[0002] Pressure sensors are the most commonly used sensors in industrial practice. They are widely used in various industrial automatic control environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines, etc.
[0003] Shortcomings of existing technologies: With the vigorous development of modern industries, the application scope of pressure sensors is becoming wider and wider. At the same time, the requirements for protecting the internal chips of pressure sensors and coping with the harsh surrounding environment are also becoming higher and higher. Most common pressure sensor packages are used to improve their own sealing. However, due to being in high temperature and high pressure environments for a long time, the externally isolated liquid will eventually penetrate into the interior and affect the pressure sensor, thereby causing sensor failure and reducing service life. Some pressure sensors that need to be repaired are more troublesome to remove the outer shell and cannot be reused after the outer shell is removed. The single traditional packaging structure is difficult to ensure the normal operation of the sensor for a long time in harsh environments, thereby reducing service life; at the same time, it increases the cost of maintenance. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pressure sensor packaging structure to solve the problems existing in the above-mentioned background technology.
[0005] The utility model provides the following technical solution: one end of the pressure sensor is fitted with an upper rotating sealing assembly, and the other end of the pressure sensor is fitted with a lower rotating sealing assembly. A lower half cotton layer sealing groove is provided on the outer side of the top surface of the lower rotating sealing assembly. A sponge plate is embedded and installed between the upper half cotton layer sealing groove and the lower half cotton layer sealing groove. A bottom tight assembly is provided at one end of the pressure sensor, and the bottom tight assembly includes a bottom sealing plate. The top surface of the bottom sealing plate abuts against the upper rotating sealing assembly. A top tight assembly is provided at the other end of the pressure sensor, and the top tight assembly includes a top sealing plate. The bottom surface of the top sealing plate abuts against the lower rotating sealing assembly.
[0006] Preferably, the main body of the upward rotation sealing assembly is configured as an upward rotation shell, an upward rotation accommodating chamber is opened at the center of the upward rotation sealing assembly, an internal rotation thread groove is fixedly installed on the cavity wall of the upward rotation accommodating chamber, an upper blocking groove is opened at the cavity bottom of the upward rotation accommodating chamber, and the center of the upper blocking groove is connected to the signal line.
[0007] Preferably, the main body of the downward rotating sealing assembly is configured as a downward rotating shell, a downward rotating accommodating chamber is opened in the center of the downward rotating sealing assembly, a lower blocking groove is fixedly opened at the bottom of the downward rotating accommodating chamber, an externally rotating threaded tube is fixedly installed at the center of the top surface of the downward rotating sealing assembly, and the externally rotating threaded tube is threadedly connected to the upper rotating sealing assembly.
[0008] Preferably, signal lines are fixedly connected to the centers of both ends of the pressure sensor, and a number of assembly grooves are fixedly opened at the upper and lower ends of the pressure sensor. The assembly groove opened at one end of the pressure sensor slides to fit the top tight component, and the assembly groove opened at the other end of the pressure sensor slides to fit the bottom tight component.
[0009] Preferably, the bottom of the top sealing plate is fixedly connected to a plurality of support rods, the bottom ends of the support rods are fixedly installed with a clamping plate, the bottom surface of the clamping plate is fixedly connected to the top end of the No. 1 buffer spring, and the bottom end of the No. 1 buffer spring abuts against the pressure sensor.
[0010] Preferably, a plurality of extrusion rods are fixedly connected to the top of the bottom sealing plate, an abutment plate is fixedly installed on the top end of the extrusion rod, the top surface of the abutment plate is fixedly connected to a No. 2 buffer spring, and the other end of the No. 2 buffer spring abuts on the pressure sensor.
[0011] The technical effects and advantages of this utility model are:
[0012] 1. When the present invention is damaged or water ingress occurs, it can be repaired without damaging the outer packaging structure. The outer packaging structure can be disassembled by rotating the upper and lower sealing components to separate them. This prevents damage to the outer packaging structure and allows it to be reused multiple times, thus reducing repair costs.
[0013] 2. The outer packaging structure applies an inward squeezing force during the packaging process, so that the outward force generated by the internal tight components is blocked by the outer packaging structure, forming a stable sealing state. At the same time, when the outer packaging structure is worn out due to long-term use, the external liquid that penetrates into the packaging structure will be absorbed by the second layer of sponge board, greatly extending the service life of the internal pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model.
[0016] Figure 3 It is a schematic diagram of a partial explosion structure of the utility model.
[0017] Figure 4 It is a schematic diagram of a partial explosion structure of the utility model.
[0018] Figure 5 It is a schematic diagram of the cross-sectional structure during the packaging process of the utility model.
[0019] Figure 6 This is a schematic structural diagram of the cross section of the utility model after packaging.
[0020] The accompanying drawings are marked as follows: 1. Upper rotating sealing assembly; 11. Upper rotating shell; 12. Upper half cotton layer sealing groove; 13. Internal rotating thread groove; 14. Upper blocking groove; 15. Upper rotating accommodating chamber; 2. Lower rotating sealing assembly; 21. Lower rotating shell; 22. Lower half cotton layer sealing groove; 23. External rotating threaded tube; 24. Lower blocking groove; 25. Lower rotating accommodating chamber; 3. Pressure sensor; 31. Signal line; 32. Assembly slide; 4. Top tight assembly; 41. Top sealing plate; 42. Support rod; 43. Card; 44. No. 1 buffer spring; 5. Bottom tight assembly; 51. Bottom sealing plate; 52. Extrusion rod; 53. Abutment plate; 54. No. 2 buffer spring; 6. Sponge plate. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The pressure sensor packaging structure involved in the present invention is not limited to the various structures described in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] The utility model provides a pressure sensor packaging structure, including a pressure sensor 3, one end of the pressure sensor 3 is engaged with an upper rotating sealing assembly 1, and the other end of the pressure sensor 3 is engaged with a lower rotating sealing assembly 2, a lower half cotton layer sealing groove 22 is provided on the outer side of the top surface of the lower rotating sealing assembly 2, a sponge plate 6 is embedded and installed between the upper half cotton layer sealing groove 12 and the lower half cotton layer sealing groove 22, a bottom tight component 5 is provided at one end of the pressure sensor 3, the bottom tight component 5 includes a bottom sealing plate 51, the top surface of the bottom sealing plate 51 abuts against the upper rotating sealing assembly 1, a top tight component 4 is provided at the other end of the pressure sensor 3, the top tight component 4 includes a top sealing plate 41, and the bottom surface of the top sealing plate 41 abuts against the lower rotating sealing assembly 2.
[0023] During use, after the installation of all components is completed, the upper rotating sealing component 1 and the lower rotating sealing component 2 begin to rotate. During the rotation, the sponge plate 6 begins to engage with the upper half cotton layer sealing groove 12 and the lower half cotton layer sealing groove 22 to complete the internal sealing. Then, as the upper rotating sealing component 1 and the lower rotating sealing component 2 approach, the top sealing plate 41 and the bottom sealing plate 51 on the top tight component 4 and the bottom tight component 5 arranged inside begin to slide toward each other under extrusion. At this time, the signal line 31 on the pressure sensor 3 is squeezed out. Affected by the extrusion force, the top sealing plate 41 and the bottom sealing plate 51 cooperate with the upper rotating sealing component 1 and the lower rotating sealing component 2 from the internal sealing outlet after the signal line 31 is squeezed out to complete the packaging.
[0024] Furthermore, for the above-mentioned upward rotating sealing assembly 1, the main body of the upward rotating sealing assembly 1 is configured as an upward rotating shell 11, an upward rotating accommodating chamber 15 is opened at the center of the upward rotating sealing assembly 1, an internal rotating thread groove 13 is fixedly installed on the cavity wall of the upward rotating accommodating chamber 15, an upper blocking groove 14 is opened at the cavity bottom of the upward rotating accommodating chamber 15, and the center of the upper blocking groove 14 is connected to the signal line 31.
[0025] At the beginning of the packaging, under the rotation cooperation of the internal thread groove 13 and the accessories assembled with it, the upper rotating shell 11 gradually approaches the corresponding connecting parts, and the upper cotton layer sealing groove 12 is engaged with the sponge plate 6 under the action of extrusion force to complete the second packaging. The parts installed in the upper rotating accommodating cavity 15 are abutted against the upper blocking groove 14 under the action of external force until the final packaging is completed.
[0026] Furthermore, for the above-mentioned downward rotating sealing assembly 2, the main body of the downward rotating sealing assembly 2 is configured as a downward rotating shell 21, a downward rotating accommodating chamber 25 is opened in the center of the downward rotating sealing assembly 2, a lower blocking groove 24 is fixedly opened at the bottom of the downward rotating accommodating chamber 25, and an externally rotating threaded tube 23 is fixedly installed at the center of the top surface of the downward rotating sealing assembly 2, and the externally rotating threaded tube 23 is threadedly connected to the upper rotating sealing assembly 1.
[0027] At the beginning of the packaging, under the rotation cooperation of the externally rotating threaded tube 23 and the accessories assembled with it, the lower rotating shell 21 gradually approaches the corresponding connecting parts, and the lower half cotton layer sealing groove 22 is fitted with the sponge plate 6 under the interaction force between it and the other assembled accessories to complete the second packaging. The parts installed in the lower rotating accommodating cavity 25 abut against the upper blocking groove 14 under the action of external force until the final packaging is completed.
[0028] Furthermore, for the above-mentioned pressure sensor 3, a signal line 31 is fixedly connected to the center of both ends of the pressure sensor 3, and a number of assembly grooves 32 are fixedly opened at the upper and lower ends of the pressure sensor 3. The assembly groove 32 opened at one end of the pressure sensor 3 slides to fit the top tight component 4, and the assembly groove 32 opened at the other end of the pressure sensor 3 slides to fit the bottom tight component 5.
[0029] After the pressure sensor 3 is packaged, the signal line 31 is connected to the outer layer through the slot reserved in the packaging shell, and the assembly grooves 32 at both ends of the pressure sensor 3 serve as limiters to prevent displacement when mating with the top tight component 4 and the bottom tight component 5.
[0030] Furthermore, for the above-mentioned top tight assembly 4, the bottom of the top sealing plate 41 is fixedly connected to a plurality of support rods 42, the bottom end of the support rod 42 is fixedly installed with a clamping plate 43, the bottom surface of the clamping plate 43 is fixedly connected to the top end of the No. 1 buffer spring 44, and the bottom end of the No. 1 buffer spring 44 abuts against the pressure sensor 3.
[0031] Since the top sealing plate 41 is in direct contact with the outer packaging structure, the force is transmitted to the support rod 42 and further transmitted to the card plate 43. At this time, the No. 1 buffer spring 44 generates a rebound force under the pressure of the card plate 43 and the resistance of the pressure sensor 3. Under the interaction, the top sealing plate 41 is tightly attached to the notch reserved in the outer packaging shell until the packaging is completed.
[0032] Furthermore, for the above-mentioned bottom tight assembly 5, a plurality of extrusion rods 52 are fixedly connected to the top of the bottom sealing plate 51, and an abutment plate 53 is fixedly installed on the top end of the extrusion rod 52. The top surface of the abutment plate 53 is fixedly connected to the No. 2 buffer spring 54, and the other end of the No. 2 buffer spring 54 abuts on the pressure sensor 3.
[0033] Since the bottom sealing plate 51 is in direct contact with the outer packaging structure, the force is transmitted to the extrusion rod 52 and further transmitted to the abutment plate 53. At this time, the No. 2 buffer spring 54 generates a rebound force under the pressure of the clamping plate 43 and the resistance of the pressure sensor 3. Under the interaction, the bottom sealing plate 51 is tightly attached to the reserved notch of the outer packaging shell until the packaging is completed.
[0034] The working principle of the present invention is as follows: when in use, the internal thread groove 13 in the upper rotating sealing component 1 and the external thread tube 23 in the lower rotating sealing component 2 are docked, and the two are rotated in opposite directions to close. During the sealing process, the sponge plate 6 arranged between the upper cotton layer sealing groove 12 and the lower cotton layer sealing groove 22 is engaged with the upper and lower grooves, and the top tight component 4 and the bottom tight component 5 arranged at both ends of the pressure sensor 3 are tightly fitted with the upper blocking groove 14 and the lower blocking groove 24 under the action of the extrusion force. At this time, the No. 1 buffer spring 44 and the No. 2 buffer spring 54 are tightened and contracted under the action of the support rod 42 and the extrusion rod 52 respectively, and a reverse force is generated.
[0035] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.
[0036] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.
[0037] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A pressure sensor packaging structure, comprising a pressure sensor (3), characterized in that: One end of the pressure sensor (3) is engaged with the upper rotating sealing assembly (1), and the other end of the pressure sensor (3) is engaged with the lower rotating sealing assembly (2). An upper half cotton layer sealing groove (12) is provided on the outer side of the bottom surface of the upper rotating sealing assembly (1), and a lower half cotton layer sealing groove (22) is provided on the outer side of the top surface of the lower rotating sealing assembly (2). A sponge plate (6) is mounted between the upper half cotton layer sealing groove (12) and the lower half cotton layer sealing groove (22). A bottom tight component (5) is provided at one end of the pressure sensor (3), and the bottom tight component (5) includes a bottom sealing plate (51). The top surface of the bottom sealing plate (51) abuts against the upper rotating sealing assembly (1). A top tight component (4) is provided at the other end of the pressure sensor (3), and the top tight component (4) includes a top sealing plate (41). The bottom surface of the top sealing plate (41) abuts against the lower rotating sealing assembly (2).
2. The pressure sensor packaging structure according to claim 1, characterized in that: The main body of the upward rotation sealing assembly (1) comprises an upward rotation shell (11), an upward rotation accommodating chamber (15) is provided at the center of the upward rotation sealing assembly (1), an internal rotation thread groove (13) is fixedly mounted on the cavity wall of the upward rotation accommodating chamber (15), an upper blocking groove (14) is provided at the cavity bottom of the upward rotation accommodating chamber (15), and the center of the upper blocking groove (14) is connected to a signal line (31).
3. The pressure sensor packaging structure according to claim 1, wherein: The main body of the downward rotating seal assembly (2) comprises a downward rotating shell (21), a downward rotating accommodating chamber (25) is provided at the center of the downward rotating seal assembly (2), a lower blocking groove (24) is fixedly provided at the bottom of the downward rotating accommodating chamber (25), an externally rotating threaded tube (23) is fixedly installed at the center of the top surface of the downward rotating seal assembly (2), and the externally rotating threaded tube (23) is threadedly connected to the upward rotating seal assembly (1).
4. The pressure sensor packaging structure according to claim 1, wherein: Signal lines (31) are fixedly connected to the centers of both ends of the pressure sensor (3), and a plurality of assembly slots (32) are fixedly provided at the upper and lower ends of the pressure sensor (3). The assembly slot (32) provided at one end of the pressure sensor (3) is slidably fitted with a top tight component (4), and the assembly slot (32) provided at the other end of the pressure sensor (3) is slidably fitted with a bottom tight component (5).
5. The pressure sensor packaging structure according to claim 1, wherein: The bottom of the top sealing plate (41) is fixedly connected to a plurality of support rods (42), the bottom ends of the support rods (42) are fixedly mounted with a clamping plate (43), the bottom surface of the clamping plate (43) is fixedly connected to the top end of a No. 1 buffer spring (44), and the bottom end of the No. 1 buffer spring (44) abuts against the pressure sensor (3).
6. The pressure sensor packaging structure according to claim 1, characterized in that: The top of the bottom sealing plate (51) is fixedly connected to a plurality of extrusion rods (52), the top ends of the extrusion rods (52) are fixedly mounted with abutment plates (53), the top surface of the abutment plates (53) is fixedly connected to a No. 2 buffer spring (54), and the other end of the No. 2 buffer spring (54) abuts against the pressure sensor (3).