Multifunctional L-shaped probe and assembling method thereof

Abstract

This invention discloses a multifunctional L-shaped probe and its assembly method, including a probe bracket, an air inlet, a baffle, a static pressure baffle, an air tube, a heating wire, an outlet plate, an electrical connector, and an air tube nozzle. The probe bracket is an L-shaped probe base, allowing all parts to be assembled as a whole. The air inlet, fitted onto the probe bracket, serves as the intake position for both static and total pressure. The baffle is installed in the air inlet to block moisture in the air. The static pressure baffle is installed at the front end of the air inlet to isolate the static pressure chamber from the total pressure chamber. The air tube connects to the static pressure baffle to conduct pressure between the static pressure orifice and the total pressure orifice. The heating wire is spirally arranged inside the air tube to prevent icing and blockage at the end of the air inlet. The outlet plate is installed on the probe bracket to connect the air tube to the heating wire. The electrical connector is installed on the outlet plate to connect the heating wire for power supply. The air tube nozzle is installed on the outlet plate to connect the air tube and to a rear-end pressure sensor. The static pressure and total pressure are transmitted through independent static pressure and total pressure isolation chambers. 3D printing technology is used to make the L-shaped probe meet the requirements, and flame brazing assembly process is used to improve the sensor assembly qualification rate.

Description

Technical Field

[0001] This invention relates to the field of atmospheric data sensing technology, specifically to a multifunctional L-shaped probe and its assembly method. Background Technology

[0002] In the field of atmospheric data sensors, the measurement of atmospheric parameters (such as wind speed, temperature, pressure, etc.) is the foundation for the operation and optimization of many systems.

[0003] Traditional probe designs often suffer from complex machining and heavy overall weight, which significantly limits the system's capabilities. Traditional L-shaped probe structures tend to have low internal space utilization and complex assembly methods, making them prone to failure during dynamic response and unable to meet atmospheric data measurement requirements. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the aforementioned technologies. This invention proposes a multifunctional L-shaped probe and its assembly method, specifically addressing the measurement needs of L-shaped probes and resolving issues such as high assembly difficulty and overly complex machining. This L-shaped probe utilizes 3D printing technology to improve internal space utilization and features an innovative internal structure design, offering advantages such as high installation efficiency and wide applicability, providing a new technical means for atmospheric data monitoring.

[0005] The technical solution of the present invention: According to a first aspect of the present invention, a multifunctional L-shaped probe is provided, comprising a probe bracket, an air inlet, a baffle, a static pressure baffle, an air tube, a heating wire, an outlet plate, an electrical connector, and an air tube nozzle; the probe bracket is L-shaped in general, so that the various parts are assembled into a whole and led out to connect with the air tube nozzle; the air inlet is a static pressure and total pressure air inlet position, one end of which is fitted onto the probe bracket, and the other end has an air inlet opening; The static pressure baffle is installed in the inner cavity of the air inlet near the air inlet opening. It has a static pressure chamber inside. The two sides of the static pressure chamber are connected to static pressure holes opened on the side wall of the air inlet to isolate the static pressure chamber from the total pressure chamber. The contact surface of the static pressure baffle with the air inlet has a through groove for gas to pass through. The baffle is installed in the inner cavity of the air inlet to block water vapor in the air inlet. The water vapor is discharged through the drain hole opened on the air inlet. One of the two air pipes is connected to the static pressure chamber of the static pressure baffle to conduct static pressure; the other pipe passes through the static pressure baffle and is connected to the air inlet to conduct total pressure. The heating wire is spirally arranged in the inner cavity of the air inlet to prevent ice from forming and blocking the end of the air inlet; The lead-out plate is installed at one end of the probe bracket and is used to connect the air tube and the electric heating wire; the electrical connector is installed on the lead-out plate and connected to the electric heating wire to provide power; the air tube nozzle is installed on the lead-out plate and connected to the air tube for connection to the rear pressure sensor.

[0006] The static pressure and total pressure are transmitted through independent static pressure and total pressure isolation chambers. 3D printing technology is used to make the L-shaped probe meet the requirements, and flame brazing assembly process is used to improve the sensor assembly qualification rate.

[0007] In one possible embodiment, the heating wire extends from one end of the air inlet and is embedded in a groove within the frame of the probe bracket.

[0008] In one possible embodiment, the probe holder is connected to the air inlet by flame brazing.

[0009] In one possible embodiment, the lead-out plate is connected to the probe bracket by flame brazing.

[0010] In one possible embodiment, the baffle, static pressure baffle, and heating wire are connected to the air inlet cavity by flame brazing.

[0011] In one possible embodiment, the trachea is connected to the static pressure diaphragm by laser welding.

[0012] In one possible embodiment, the static pressure baffle has multiple through slots circumferentially formed on the contact surface between the baffle and the inner cavity of the air inlet.

[0013] In one possible embodiment, the drain hole is located on the side of the baffle near the air intake opening.

[0014] According to a second aspect of the present invention, a method for assembling a multifunctional L-shaped probe is provided for assembling the aforementioned multifunctional L-shaped probe, comprising the following steps: Step 1: Connect the baffle and static pressure baffle to the two gas paths in sequence, and connect the heating wire to the baffle to form a pre-assembly; Step 2: Install the pre-component into the inner cavity of the air inlet and fix it by flame brazing; Step 3: Fit the air inlet onto the probe bracket and fix it in place by flame brazing; Step 4: Extend the heating wire from one end of the air inlet and embed it in the groove inside the probe bracket. Fill the groove with flame brazing filler and then weld it in place. Step 5: Connect the heating wire to the electrical connector mounted on the lead-out plate, and at the same time connect the air passage to the air pipe nozzle mounted on the lead-out plate; Step 6: Connect the lead-out plate to the probe bracket by flame brazing.

[0015] The superior effects of this invention are as follows: High installation efficiency. This invention adopts an integral welded assembly design, significantly simplifying the traditional split assembly process by modularly installing the baffle, air pipe, static pressure baffle, heating wire, and air inlet. This assembly method optimizes the welding process to achieve internal assembly of small parts, which not only shortens the on-site installation cycle but also effectively eliminates the internal positioning problems of traditional assembly methods, ensuring the structural stability of the probe under complex working conditions.

[0016] Wide range of applications. Based on innovative applications of 3D printing technology, this invention breaks through the limitations of traditional processing techniques, enabling the precise molding of complex and irregular structures. The probe can adapt to diverse needs such as non-standard pipe interfaces, and its streamlined curved surface design effectively reduces fluid resistance and improves detection sensitivity. This technical solution allows the probe to meet the detection requirements under various working conditions, while supporting customized shape designs and seamless integration with existing detection systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram showing the connection between the static pressure baffle and the air passage in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of a preferred embodiment of the present invention; Figure 4 This is an external structural diagram of a preferred embodiment of the present invention.

[0018] The attached diagram is labeled as follows: 1-Probe bracket, 2-Baffle, 3-Air tube, 4-Static pressure baffle, 5-Heating wire, 6-Air inlet, 7-Outlet plate, 8-Electrical connector, 9-Air tube nozzle, 10-Total pressure hole, 11-Static pressure hole, 12-Drain hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setups and methods set forth below, but covers any improvements, substitutions, and modifications to structures, methods, and devices without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description to avoid unnecessarily obscuring the invention.

[0021] In the description of this invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the invention, and should not be construed as limiting the invention. Furthermore, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0025] like Figures 1 to 2The diagram shows a multifunctional L-shaped probe and its assembly method, comprising: 1-probe bracket, 2-baffle, 3-tracheal tube, 4-static pressure baffle, 5-heating wire, 6-air inlet, 7-lead plate, 8-electrical connector, 9-tracheal tube nozzle, 10-total pressure hole, 11-static pressure hole, and 12-drain hole. The probe bracket is an L-shaped probe base, allowing all parts to be assembled as a whole. The air inlet, fitted onto the probe bracket, serves as the static pressure and total pressure intake position. A baffle is installed in the air inlet to block moisture. A static pressure baffle is installed at the front end of the air inlet to isolate the static pressure chamber from the total pressure chamber. The air tube connects to the static pressure baffle to conduct pressure between the static pressure and total pressure orifices. The heating wire is spirally arranged inside the air tube to prevent icing and blockage at the end of the air inlet. The lead-out plate is installed on the probe bracket to connect the air tube to the heating wire. An electrical connector is installed on the lead-out plate to power the heating wire. The air tube nozzle is installed on the lead-out plate to connect the air tube and connect to the rear pressure sensor. Static and total pressures are conducted through independent static and total pressure isolation chambers. 3D printing technology ensures the L-shaped probe meets the requirements, and flame brazing assembly technology improves the sensor assembly qualification rate.

[0026] In this embodiment, the air pipe 3 is installed into the static pressure baffle 4 according to the mounting holes. The main pressure pipe extends 2mm out of the static pressure baffle, while the static pressure pipe needs to be embedded in the pre-drilled through hole in the middle of the static pressure baffle. After the air pipe is fixed to the static pressure baffle using a clamp, it is connected using a laser welding process. Figure 2 As shown.

[0027] In this embodiment, the static pressure baffle 4 is installed using modular assembly technology. The static pressure baffle is inserted into the parallel slot reserved in the heating wire 5 and initially fixed using a dual-station flame brazing equipment. Spot welding is performed using silver-based solder (Ag-Cu-Zn alloy). Each welding point is kept at a constant temperature for 3 seconds and then naturally cooled to form a uniform welding point with a diameter of 0.8mm.

[0028] In this embodiment, the baffle 2 is installed in the straight area corresponding to the heating wire and is initially fixed by spot welding using flame brazing.

[0029] In this embodiment, the overall assembly process includes the following key steps: After the baffle 2, air pipe 3, static pressure baffle 4, and heating wire 5 are assembled into one unit, a pre-assembly is formed. This pre-assembly consists of all the components in the air inlet 6, enabling modular installation of the internal components of the air inlet. The pre-assembly is as follows: Figure 3 As shown.

[0030] In this embodiment, the pre-component is slowly pushed in along the conical guide surface of the air inlet 6. The installation direction of the pre-component is confirmed by the orientation of the heating wire 5 and the air pipe 3. Then, the joint is welded as a whole by the annular flame brazing equipment to ensure that the whole is formed without loosening.

[0031] In this embodiment, the probe bracket 1 and the air inlet 6 are connected by a positioning key fit process. A main key is machined at the connection position of the probe bracket 1 and is tolerance-fitted with the keyway of the air inlet 6. The heating wire 5 in the pre-assembly passes through the reserved hole of the probe bracket. The air tube 3 in the pre-assembly passes directly through the inside of the probe bracket 1. The connection between the probe bracket 1 and the air inlet 6 is sealed by silver brazing.

[0032] In this embodiment, as Figure 3 As shown, the heating wire 5 is led out to the outside of the gas chamber and then laid out along the pre-reserved mounting groove on the outer surface of the probe bracket 1. It passes through the pre-reserved hole in the bottom plate of the probe bracket 6 and is filled with solder by flame brazing. (See figure). Figure 4 As shown.

[0033] In this embodiment, the electrical connector 8 and the air tube nozzle 9 are fixed to the lead-out plate 7 by laser welding.

[0034] In this embodiment, after the electrical connector 8, the air tube nozzle 9 and the lead-out plate 7 are assembled into one unit, the heating wire 5 is connected to the corresponding interface of the electrical connector 8, the air tube 3 is connected to the air tube nozzle 9, the connection part is fixed by flame brazing, and the lead-out plate 7 is fixed to the bottom of the probe bracket 1 by laser welding.

[0035] In this embodiment, the assembly method is an L-shaped probe assembly method, which mainly includes modular assembly and welding. Modular assembly involves decomposing the entire structure into multiple functional modules, assembling each module independently, and then combining them to improve installation efficiency and consistency. Welding mainly includes laser welding and flame brazing, which fixes the various components in the modular assembly to form a whole and ensures the realization of the assembly process.

[0036] The above detailed embodiments are a description of the present invention. It should not be considered that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the protection scope of the present invention.

Claims

1. A multifunctional L-shaped probe, characterized in that, The system includes a probe bracket, an air inlet, a baffle, a static pressure baffle, an air tube, a heating wire, an outlet plate, an electrical connector, and an air tube nozzle. The probe bracket is generally L-shaped. One end of the air inlet is fitted onto the probe bracket, and the other end has an air inlet opening. The static pressure baffle is installed inside the air inlet cavity near the air inlet opening and has a static pressure chamber inside. The two sides of the static pressure chamber are connected to static pressure holes on the side wall of the air inlet. A through groove is formed on the surface of the static pressure baffle that contacts the air inlet for gas to pass through. The baffle is installed on the air inlet... The air inlet cavity allows water vapor to escape through a drain hole. One of the two air pipes connects to the static pressure chamber of the static pressure baffle, while the other pipe passes through the static pressure baffle and connects to the air inlet opening. The heating wire is spirally arranged inside the air inlet cavity. The lead-out plate is installed at one end of the probe bracket and is used to connect the air pipe to the heating wire. The electrical connector is installed on the lead-out plate and connected to the heating wire for power supply. The air pipe nozzle is installed on the lead-out plate and connected to the air pipe for connection to the downstream pressure sensor.

2. The multifunctional L-shaped probe according to claim 1, characterized in that, The heating wire extends from one end of the air inlet and is embedded in a groove within the frame of the probe bracket.

3. A multifunctional L-shaped probe according to claim 1, characterized in that, The probe bracket is connected to the air inlet by flame brazing.

4. A multifunctional L-shaped probe according to claim 1, characterized in that, The lead-out plate is connected to the probe bracket by flame brazing.

5. A multifunctional L-shaped probe according to claim 1, characterized in that, The baffle, static pressure baffle, and heating wire are connected to the inner cavity of the air inlet by flame brazing.

6. A multifunctional L-shaped probe according to claim 1, characterized in that, The air pipe is connected to the static pressure diaphragm by laser welding.

7. A multifunctional L-shaped probe according to claim 1, characterized in that, The static pressure baffle has multiple through grooves circumferentially formed on the contact surface between it and the inner cavity of the air inlet.

8. A multifunctional L-shaped probe according to claim 1, characterized in that, The drain hole is located on the side of the baffle near the air inlet.

9. A method for assembling a multifunctional L-shaped probe, characterized in that, The assembly of a multifunctional L-shaped probe according to any one of claims 1-8 includes the following steps: Step 1: Connect the baffle and static pressure baffle to the two gas paths in sequence, and connect the heating wire to the baffle to form a pre-assembly; Step 2: Install the pre-component into the inner cavity of the air inlet and fix it by flame brazing; Step 3: Fit the air inlet onto the probe bracket and fix it in place by flame brazing; Step 4: Extend the heating wire from one end of the air inlet and embed it in the groove inside the probe bracket. Fill the groove with flame brazing filler and then weld it in place. Step 5: Connect the heating wire to the electrical connector mounted on the lead-out plate, and at the same time connect the air passage to the air pipe nozzle mounted on the lead-out plate; Step 6: Connect the lead-out plate to the probe bracket by flame brazing.

Images