Water-cooling pressure sensor

Abstract

The utility model discloses a water-cooling pressure sensor, which comprises a filler neck, a shell, a pressure core body, a circuit assembly and a conducting wire for connection, and the filler neck is used for accommodating a core body cavity of the pressure core body and is sleeved with a water-cooling cover in sealing connection with the core body cavity. The inner wall of the shell sleeved outside the water cooling cover can seal the opening side of the double-line spiral groove on the outer wall of the water cooling cover, so that the inner wall of the shell and the double-line spiral groove on the outer wall of the water cooling cover form a water inlet groove and a water outlet groove for guiding the flow direction of cooling water; a water inlet of the water inlet groove is communicated with a water inlet pipe fixed on the shell in a sealing mode, and a water outlet of the water outlet groove is communicated with a water outlet pipe fixed on the shell in a sealing mode. The water-cooling pressure sensor is small in mass and size, low in cost, compact and simple in structure and high in manufacturability, the temperature of the sensor during working can be greatly reduced, and the environmental adaptability of the pressure sensor under the high-temperature condition is improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically a water-cooled pressure sensor capable of measuring pressure in high-temperature environments. Background Technology

[0002] In current aviation, hydraulic, and gas systems, there is a growing demand for pressure signal measurements and high-temperature operating environments. However, traditional pressure sensors are not well-suited for measurements in high-temperature environments.

[0003] Currently, there are relatively few types of water-cooled pressure sensors, and most rely on electronic devices for cooling rather than mechanical structures. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a water-cooled pressure sensor capable of measuring pressure in high-temperature environments.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A water-cooled pressure sensor includes a connector, a housing, a pressure core, a circuit assembly, and connecting wires. The connector is characterized in that: the core cavity of the pressure core is fitted with a sealed water-cooling cover; the inner wall of the housing, fitted over the water-cooling cover, seals the opening of the double-line spiral groove on the outer wall of the water-cooling cover, such that the inner wall of the housing and the double-line spiral groove on the outer wall of the water-cooling cover form an inlet groove and an outlet groove to guide the flow of cooling water; the inlet of the inlet groove is connected to an inlet pipe sealed and fixed on the housing, and the outlet of the outlet groove is connected to an outlet pipe sealed and fixed on the housing.

[0007] The top of the outer wall of the water-cooled cover is provided with a top annular groove, which is used to connect the water inlet tank and the water outlet tank.

[0008] The water inlet and outlet are set on the outer wall of the water cooling cover at a 180° interval.

[0009] The outer wall of the connector is provided with a water-cooled cover welding surface for sealing and welding the bottom end face of the water-cooled cover, and the water-cooled cover welding surface is located on the lower side of the core cavity that contains the pressure core.

[0010] The outer edge of the welding surface of the water-cooled cover is provided with a welding step.

[0011] The outer wall of the connector on the lower side of the water-cooled cover welding surface is provided with a sealing welding surface for the bottom end face of the outer shell.

[0012] The outer casing has threaded holes for sealing and connecting the water inlet pipe and the water outlet pipe respectively.

[0013] The outer shell has a protruding post structure, which has a threaded hole and a flat surface.

[0014] The upper part of the water cooling cover has an internal threaded hole for threaded installation of a wire cap. A rubber cap is placed inside the wire cap, and the bottom of the internal threaded hole has a wire outlet hole.

[0015] The inner side of the inlet hole of the connector is provided with a sealing groove for installing a sealing ring.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The water-cooled pressure sensor of this invention is small in size and weight, low in cost, compact and simple in structure, and highly manufacturable. It can greatly reduce the temperature of the sensor during operation and improve the environmental adaptability of the pressure sensor under high temperature conditions. Attached Figure Description

[0018] Appendix Figure 1 A schematic diagram of the structure of the water-cooled pressure sensor provided by this utility model;

[0019] Appendix Figure 2 A cross-sectional view of the water-cooled pressure sensor provided by this utility model;

[0020] Appendix Figure 3 A schematic diagram of the water-cooled cover structure of the water-cooled pressure sensor provided by this utility model.

[0021] Wherein: 1—Connecting nozzle; 11—Water cooling cover welding surface; 12—Welding step; 13—Outer shell welding surface; 14—Sealing groove; 2—Water cooling cover; 21—Water inlet; 22—Water inlet groove; 23—Top annular groove; 24—Water outlet groove; 25—Water outlet; 3—Outer shell; 4—Water inlet pipe; 5—Water outlet pipe; 6—Wire cap; 7—Pressure core; 8—Insulating gasket; 9—Circuit assembly; 10—Rubber cap. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0023] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0024] like Figure 1-3 As shown: A water-cooled pressure sensor includes a connector 1, a water-cooled cover 2, a housing 3, a water inlet pipe 4, a water outlet pipe 5, a pressure cap 6, a pressure core 7, an insulating gasket 8, a circuit assembly 9, a rubber cap 10, and connecting wires. A sealing groove 14 for installing a sealing ring is provided inside the pressure inlet hole of the connector 1. The aforementioned connector 1 is used to accommodate the core cavity of the pressure core 7, which is covered by a sealed water-cooling cover 2. The inner wall of the outer shell 3, which is fitted over the water-cooling cover 2, can seal the opening side of the double-line spiral groove on the outer wall of the water-cooling cover 2. This allows the inner wall of the outer shell 3 and the double-line spiral groove on the outer wall of the water-cooling cover 2 to form an inlet groove 22 and an outlet groove 24 that guide the flow of cooling water. The inlet 21 of the inlet groove 22 is connected to the inlet pipe 4 that is sealed and fixed on the outer shell 3, and the outlet 25 of the outlet groove 24 is connected to the outlet pipe 5 that is sealed and fixed on the outer shell 3. Since the inlet groove 22 and the outlet groove 24 do not cross each other and the inlet 21 and the outlet 25 are set at a 180° interval on the outer wall of the water-cooling cover 2, a top annular groove 23 is provided at the top of the outer wall of the water-cooling cover 2 to connect the inlet groove 22 and the outlet groove 24.

[0025] Based on the above structure, an internal threaded hole is opened on the upper part of the water cooling cover 2. The internal threaded hole is used for threaded installation of the wire cap 6. A rubber cap 10 is placed inside the wire cap 6, and a wire outlet hole is provided at the bottom of the internal threaded hole. Threaded holes for sealing and connecting the water inlet pipe 4 and the water outlet pipe 5 are opened on the outer shell 3. The outer shell 3 has a convex pillar structure with threaded holes and a flat surface.

[0026] To improve sealing performance, a water-cooled cover welding surface 11 is provided on the outer wall of the connector 1 to seal the bottom end face of the water-cooled cover 2, and this water-cooled cover welding surface 11 is located on the lower side of the core cavity that accommodates the pressure core 7; at the same time, a shell welding surface 13 is provided on the outer wall of the connector 1 below the water-cooled cover welding surface 11 to seal the bottom end face of the outer shell 3. To improve the ease of welding the water-cooled cover 2, a welding step 12 is provided on the outer edge of the water-cooled cover welding surface 11. Example

[0027] like Figure 1-3As shown, this utility model provides a small water-cooled pressure sensor capable of measuring pressure in high-temperature environments. The water-cooled pressure sensor includes a connector 1, a water-cooling cover 2, a housing 3, a water inlet pipe 4, a water outlet pipe 5, a pressure cap 6, a pressure core 7, a circuit assembly 8, an insulating gasket 9, and a rubber gasket 10. A core cavity is designed in the upper part of the connector 1, where the pressure core 7 can be welded. The pressure core 7 is soldered to the circuit assembly 9. The insulating gasket 8 provides insulation between the pressure core 7 and the circuit assembly 9. Two welding surfaces are provided on the middle outer wall of the connector 1: a water-cooling cover welding surface 11 for welding the water-cooling cover 2 and a housing welding surface 13 for welding the housing 3. The edge of the higher water-cooling cover welding surface 11 has a welding step 12, which prevents the height of the weld slag from affecting the assembly of the housing 3 after welding the water-cooling cover 2. The lower section of the connector 1 has a mechanical interface with internal and external threads for installation during use. A sealing groove 14 at the bottom of the connector is used for installing a sealing ring to prevent leakage during pressure input.

[0028] The bottom of the water-cooling cover 2 is welded to the inlet nozzle 1. A double-line spiral groove for water flow guidance is provided on the outer wall of the water-cooling cover 2. The inlet groove 22 and outlet groove 24 of the double-line spiral groove are connected to each other through a top annular groove 23. This layout creates two independent channels for water flow inside the water-cooling cover 2 and the outer shell 3: the inlet groove 22 for water intake and the outlet groove 24 for water outlet. This design helps improve water flow guidance and cooling efficiency. Furthermore, the top of the water-cooling cover 2 is welded to the outer shell 3, ensuring the sealing of the entire water flow channel, preventing cooling water leakage, and also ensuring the safety of the sensor under high-pressure environments. A threaded hole for mounting the wire cap 6 is provided on the upper part of the water-cooling cover 2, and an outlet hole is located at the bottom of this threaded hole.

[0029] The bottom of the outer casing 3 is welded to the connector 1. Two threaded holes are opened on the side wall of the outer casing 3: one for assembling the inlet pipe 4 and the other for assembling the outlet pipe 5. The protruding column structure of the outer casing 3 is a cylinder with four flat surfaces cut out for easy wrench operation, and the two threaded holes are also located on the protruding column structure. Specifically, the inlet pipe 4 is connected to the threaded hole on the side of the outer casing 3 for water input; the outlet pipe 5 is connected to the threaded hole on the side of the outer casing 3 for water output.

[0030] The wire cap 6 is connected to the threaded cavity at the top of the water cooling cover 2. The inside is equipped with a rubber pad 10 for fixing the wire. The upper end of the wire cap 6 is hexagonal for easy wrench operation.

[0031] The circuit assembly 9 leads out a wire, which is squeezed and fixed to the rubber pad 10 through the wire outlet hole on the upper part of the water-cooling cover 2. The wire cable is led out from the upper end of the wire cap 6, and the rubber pad 10 is used to fix the wire. The circuit assembly 9 is used for the linear conversion of pressure signal to electrical signal to achieve the purpose of pressure measurement. The wire is soldered to the core pin.

[0032] When the water-cooled pressure sensor of this invention is working, the pressure core 7, the circuit assembly 9, and the wires form a circuit system used to linearly convert the pressure signal into an electrical signal, thereby achieving the purpose of pressure measurement. Water flows through the inlet pipe 4 into the threaded hole on the side of the outer casing 3, and then flows along the double-line spiral groove on the side of the water-cooling cover 2. The water flows between the inlet groove 22 and the outlet groove 24 formed by the water-cooling cover 2 and the outer casing 3. The inlet groove 22 and the outlet groove 24 do not intersect, but are connected by the top annular groove 23 of the top ring, ensuring the continuity and sealing of the water flow. Finally, the water flows out through the outlet pipe 5, completing the cooling process, thereby reducing the operating temperature of the water-cooled pressure sensor and improving its environmental adaptability under high-temperature conditions.

[0033] The water-cooled pressure sensor of this invention significantly reduces the temperature of the pressure sensor by designing a double-line spiral groove, thereby improving its environmental adaptability under high-temperature conditions. The water-cooled pressure sensor has a simple and compact structure and is easy to install.

[0034] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" 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 the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0036] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.

Claims

1. A water-cooled pressure sensor comprising a connector nozzle (1), a housing (3), a pressure core (7), a circuit assembly (9) and a connecting lead, characterized in that: The connecting nozzle (1) is used for accommodating the water cooling cover (2) which is sealingly connected outside the core cavity of the pressure core (7), the inner wall of the shell (3) which is sleeved outside the water cooling cover (2) can seal the double-line spiral groove opening side on the outer wall of the water cooling cover (2), so that the double-line spiral groove on the inner wall of the shell (3) and the outer wall of the water cooling cover (2) form the water inlet groove (22) and the water outlet groove (24) which guide the flow direction of the cooling water, the water inlet (21) of the water inlet groove (22) is connected with the water inlet pipe (4) which is sealingly fixed on the shell (3), and the water outlet (25) of the water outlet groove (24) is connected with the water outlet pipe (5) which is sealingly fixed on the shell (3).

2. The water-cooled pressure sensor of claim 1, wherein: The outer wall top of the water cooling cover (2) is provided with a top annular groove (23) which is used for connecting the water inlet groove (22) and the water outlet groove (24).

3. The water-cooled pressure sensor of claim 1 or 2, wherein: The water inlet (21) and the water outlet (25) are arranged on the outer wall of the water cooling cover (2) at an interval of 180°.

4. The water-cooled pressure sensor of claim 1, wherein: The outer wall of the connecting nozzle (1) is provided with a water cooling cover welding surface (11) which sealingly welds the bottom end surface of the water cooling cover (2), and the water cooling cover welding surface (11) is located on the lower side of the core cavity which accommodates the pressure core (7).

5. The water-cooled pressure sensor of claim 4, wherein: The outer edge of the water cooling cover welding surface (11) is provided with a welding step (12).

6. The water-cooled pressure sensor of claim 4 or 5, wherein: The outer wall of the connecting nozzle (1) on the lower side of the water cooling cover welding surface (11) is provided with a shell welding surface (13) which sealingly welds the bottom end surface of the shell (3).

7. The water-cooled pressure sensor of claim 1, wherein: The shell (3) is provided with threaded holes which are used for sealingly connecting the water inlet pipe (4) and the water outlet pipe (5) respectively.

8. The water-cooled pressure sensor of claim 1 or 7, wherein: The shell (3) is provided with a convex column structure which is provided with a threaded hole and a flat surface.

9. The water-cooled pressure sensor of claim 1, wherein: The upper part of the water cooling cover (2) is provided with an inner threaded hole which is used for screwing the wire pressing cap (6), the rubber cap (10) is placed in the wire pressing cap (6), and the bottom of the inner threaded hole is provided with a wire outlet hole.

10. The water-cooled pressure sensor of claim 1, wherein: The inner side of the pressure inlet hole of the connecting nozzle (1) is provided with a sealing groove (14) which is used for installing a sealing ring.

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