High insulation pressure transmitter

Abstract

This application relates to a high-insulation pressure transmitter, comprising: a base, a core, an insulating sleeve, a circuit board assembly, a housing, and an electrical connector. The base is a hollow cylindrical structure with a mounting hole at one end and a detection hole at the other end. The insulating sleeve covers the core and is embedded in the mounting hole. The housing matches the base, and its edge is fixedly connected to the mounting hole of the base. The circuit board assembly is disposed inside the housing and communicates with the core. The electrical connector is embedded in the housing and sealed, and the electrical connector is suitable for communication connections with both the circuit board assembly and a computer terminal. The insulating sleeve effectively isolates the current conduction path, greatly improving the insulation performance of the pressure transmitter, enabling it to work stably in special environments such as high voltage and strong electromagnetic interference. The insulating sleeve covering the core and embedded in the mounting hole isolates the core from the base, preventing current conduction and improving insulation performance. The insulating sleeve also provides a certain degree of protection for the core, reducing the influence of external factors on the core.

Description

Technical Field

[0001] This application relates to the field of pressure transmitter technology, and more particularly to a high-insulation pressure transmitter. Background Technology

[0002] Pressure transmitters are commonly used devices in pressure measurement applications, designed to meet the needs of high-insulation, high-precision, wide-temperature-range, and compact pressure transmitters in fields such as high-altitude railway locomotives and aerospace. However, in certain special environments, such as high voltage and strong electromagnetic interference, the insulation performance of ordinary pressure transmitters may not meet the requirements, leading to decreased measurement accuracy and even affecting the normal operation of the equipment. Utility Model Content

[0003] To address the problem of poor insulation performance in traditional pressure transmitters, this invention provides a high-insulation pressure transmitter, comprising: a base, a core, an insulating sleeve, a circuit board assembly, a housing, and an electrical connection socket;

[0004] The base is a hollow cylindrical structure with a mounting hole at one end and a detection hole at the other end.

[0005] The insulating sleeve covers the core and is embedded in the mounting hole;

[0006] The housing matches the base, and its edge is fixedly connected to the mounting holes of the base;

[0007] The circuit board assembly is disposed inside the housing and is communicatively connected to the core.

[0008] The electrical connector is embedded in the housing and sealed, and the electrical connector is suitable for communication connection with the circuit board assembly and the computer terminal respectively.

[0009] One possible implementation also includes: a sealing ring;

[0010] The inner wall of the base is provided with an annular first sealing groove, which corresponds to the insulating sleeve;

[0011] The inner wall of the insulating sleeve is provided with an annular second sealing groove, which corresponds to the core.

[0012] The sealing rings are respectively embedded in the first sealing groove and the second sealing groove.

[0013] In one possible implementation, the core and the mounting hole of the base are spaced at a predetermined distance.

[0014] One possible implementation also includes: an insulating pressure ring;

[0015] The insulating pressure ring has a ring-shaped structure that matches the inner wall of the insulating sleeve, and the insulating pressure ring is made of insulating material and is embedded in the insulating pressure ring, abutting against the core.

[0016] In one possible implementation, the top of the insulating sleeve is an open structure, and the depth of the insulating sleeve is equal to the sum of the height of the core and the thickness of the insulating pressure ring.

[0017] One possible implementation also includes: a core pressure ring;

[0018] The core pressure ring is a ring structure, embedded at the connection position between the base and the housing, and welded to the base and the housing respectively;

[0019] The core pressure ring abuts against the insulating sleeve and the insulating pressure ring.

[0020] One possible implementation also includes: an insulating support;

[0021] The insulating support is ring-shaped with a stepped structure on the inner side;

[0022] The insulating bracket overlaps the core pressure ring, and the circuit board assembly is mounted on the insulating bracket.

[0023] In one possible implementation, the core retaining ring has a stepped structure on the side away from the core, and the insulating support matches the core retaining ring and overlaps the top of the retaining ring.

[0024] In one possible implementation, the circuit board assembly includes: a protective circuit board and a transmitter circuit board;

[0025] The transmitter circuit board and the protective circuit board are respectively attached inside the insulating support.

[0026] In one possible implementation, the detection hole is rounded.

[0027] The beneficial effects of the high-insulation pressure transmitter in this application embodiment are as follows: Through the installation of insulating components such as insulating sleeves, insulating pressure rings, and insulating supports, as well as the sealing effect of the sealing rings, the current conduction path is effectively isolated, greatly improving the insulation performance of the pressure transmitter and enabling it to operate stably in special environments such as high voltage and strong electromagnetic interference. Specifically, the insulating sleeve covers the core and is embedded in the mounting hole, isolating the core from the base, preventing current conduction and improving insulation performance. At the same time, the insulating sleeve also provides a certain degree of protection for the core, reducing the impact of external factors on the core.

[0028] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0030] Figure 1 This paper shows a cross-sectional schematic diagram of the main structure of a high-insulation pressure transmitter according to an embodiment of this application;

[0031] Figure 2 An exploded view of a high-insulation pressure transmitter according to an embodiment of this application is shown. Detailed Implementation

[0032] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0033] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] 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.

[0035] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0036] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0037] Figure 1 A schematic diagram of the main structure according to an embodiment of this application is shown. Figure 1 and Figure 2 As shown, the high-insulation pressure transmitter of this application embodiment includes: a base 100, a core 400, an insulating sleeve 300, a circuit board assembly, a housing 1000, and an electrical connector 1100. The base 100 is a hollow cylindrical structure with a mounting hole at one end and a detection hole at the other end. The insulating sleeve 300 covers the core 400 and is embedded in the mounting hole. The housing 1000 matches the base 100, and its edge is fixedly connected to the mounting hole of the base 100. The circuit board assembly is disposed in the housing 1000 and is communicatively connected to the core 400. The electrical connector 1100 is embedded in the housing 1000 and sealed, and the electrical connector 1100 is suitable for communicatively connecting to the circuit board assembly and a computer terminal.

[0038] In this specific embodiment, the use of insulating components such as the insulating sleeve 300, insulating pressure ring 500, and insulating bracket 700, along with the sealing effect of the sealing ring 200, effectively isolates the current conduction path, greatly improving the insulation performance of the pressure transmitter and enabling it to operate stably in special environments such as high voltage and strong electromagnetic interference. Specifically, the insulating sleeve 300 covers the core 400 and is embedded in the mounting hole, isolating the core 400 from the base 100, preventing current conduction and improving insulation performance. At the same time, the insulating sleeve 300 also provides a certain degree of protection for the core 400, reducing the impact of external factors on the core 400.

[0039] In one specific embodiment, the system further includes a sealing ring 200. The inner wall of the base 100 has an annular first sealing groove corresponding to the insulating sleeve. By embedding the sealing ring 200 within the first sealing groove, a seal can be formed between the base 100 and the insulating sleeve 300. The inner wall of the insulating sleeve has an annular second sealing groove corresponding to the core 400. By embedding the sealing ring 200 within the second sealing groove, a seal can be formed between the core 400 and the insulating sleeve 300. Thus, the sealing ring 200 enhances the sealing performance between the components, preventing leakage of the pressure medium, and also further improves the insulation performance, avoiding problems such as electrical short circuits caused by medium leakage.

[0040] In one specific embodiment, the mounting holes of the core 400 and the base 100 are spaced at a preset distance, which reduces the impact of heat conduction and mechanical vibration on the core 400.

[0041] In one specific embodiment, the device further includes an insulating pressure ring 500. The insulating pressure ring 500 has a ring-shaped structure that matches the inner wall of the insulating sleeve 300. The insulating pressure ring 500 is made of insulating material and is embedded within the insulating pressure ring 300, abutting against the core 400. The insulating pressure ring 500 further enhances the insulation performance of the core 400, preventing current from being conducted through the gap between the core 400 and other components. Simultaneously, the insulating pressure ring 500 also provides fixation and buffering for the core 400, reducing mechanical impact on the core 400.

[0042] In one specific embodiment, the top of the insulating sleeve 300 is an open structure, and the depth of the insulating sleeve 300 is equal to the sum of the height of the core 400 and the thickness of the insulating pressure ring 500.

[0043] In one specific embodiment, the transmitter further includes a core retaining ring 600. The core retaining ring 600 is an annular structure and is embedded at the connection position between the base 100 and the housing 1000. It is welded to both the base 100 and the housing 1000, and the core retaining ring 600 abuts against the insulating sleeve 300 and the insulating retaining ring 500. The core retaining ring 600 serves to fix the insulating sleeve 300 and the insulating retaining ring 500, enhance the connection strength between the base 100 and the housing 1000, and ensure the structural stability of the entire transmitter.

[0044] In one specific embodiment, the system further includes an insulating bracket 700, which is annular with a stepped inner structure. The insulating bracket 700 overlaps the core pressure ring 600, and the circuit board assembly is mounted on the insulating bracket 700. The insulating bracket 700 provides mounting support for the circuit board assembly and isolates the circuit board assembly from other components, improving the insulation performance of the circuit board assembly. The stepped structure of the insulating bracket 700 better accommodates the installation of the circuit board assembly, improving installation stability.

[0045] In one specific embodiment, the side of the core retaining ring 600 away from the core 400 has a stepped structure, and the insulating support 700 matches the core retaining ring 600, overlapping on the top of the retaining ring. Thus, the matching stepped structure makes the connection between the insulating support 700 and the core retaining ring 600 tighter, further improving the stability and insulation performance of the structure.

[0046] In this specific embodiment, the contact position between the core pressure ring 600 and the insulating support 700 is stepped, thereby increasing the length of the path and preventing breakdown.

[0047] In one specific embodiment, the circuit board assembly includes a protective circuit board 900800 and a transmitter circuit board 800, which are respectively mounted inside an insulating bracket 700. The protective circuit board 900800 protects the transmitter circuit board 800, preventing external interference signals from affecting it and improving the accuracy and stability of signal processing. The protective circuit board 900800 and the transmitter circuit board 800 are stably mounted on the stepped insulating bracket 700.

[0048] In one specific embodiment, the detection hole is rounded. Rounding can reduce stress concentration at the edge of the detection hole, prevent cracks and other problems caused by stress concentration, and improve the service life of the base 100.

[0049] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A high insulating pressure transmitter characterized in that, include: Base, core, insulating sleeve, circuit board assembly, housing, and electrical connector; The base is a hollow cylindrical structure with a mounting hole at one end and a detection hole at the other end. The insulating sleeve covers the core and is embedded in the mounting hole; The housing matches the base, and its edge is fixedly connected to the mounting holes of the base; The circuit board assembly is disposed inside the housing and is communicatively connected to the core. The electrical connector is embedded in the housing and sealed, and the electrical connector is suitable for communication connection with the circuit board assembly and the computer terminal respectively.

2. The high insulating pressure transmitter of claim 1, wherein, Also includes: Sealing ring; The inner wall of the base is provided with an annular first sealing groove, which corresponds to the insulating sleeve; The inner wall of the insulating sleeve is provided with an annular second sealing groove, which corresponds to the core. The sealing rings are respectively embedded in the first sealing groove and the second sealing groove.

3. The high insulating pressure transmitter of claim 2, wherein, The core and the mounting hole of the base are spaced at a preset distance.

4. The high insulating pressure transmitter according to any one of claims 1-3, characterized in that, Also includes: Insulating pressure ring; The insulating pressure ring has a ring-shaped structure that matches the inner wall of the insulating sleeve, and the insulating pressure ring is made of insulating material and is embedded in the insulating pressure ring, abutting against the core.

5. The high insulating pressure transmitter of claim 4, wherein, The top of the insulating sleeve is open, and the depth of the insulating sleeve is equal to the sum of the height of the core and the thickness of the insulating pressure ring.

6. The high-insulation pressure transmitter according to claim 4, characterized in that, Also includes: Core pressure ring; The core pressure ring is a ring structure, embedded at the connection position between the base and the housing, and welded to the base and the housing respectively; The core pressure ring abuts against the insulating sleeve and the insulating pressure ring.

7. The high-insulation pressure transmitter according to claim 6, characterized in that, Also includes: Insulating support; The insulating support is ring-shaped with a stepped structure on the inner side; The insulating bracket overlaps the core pressure ring, and the circuit board assembly is mounted on the insulating bracket.

8. The high-insulation pressure transmitter according to claim 7, characterized in that, The core pressure ring has a stepped structure on the side away from the core, and the insulating bracket matches the core pressure ring and overlaps the top of the pressure ring.

9. The high-insulation pressure transmitter according to claim 7, characterized in that, The circuit board assembly includes: a protective circuit board and a transmitter circuit board; The transmitter circuit board and the protective circuit board are respectively attached inside the insulating support.

10. The high-insulation pressure transmitter according to claim 1, characterized in that, The detection holes are rounded.

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