Pressure window flange structure

Abstract

This utility model relates to a pressure window flange structure, comprising a flange having a first surface and a second surface opposite to each other. The flange includes a communicating groove and a through hole. The groove is connected to the first surface of the flange, and the through hole is connected to the second surface of the flange. A stepped surface facing the first surface of the flange is provided at the connection between the groove and the through hole. A pressure window is installed in the groove, with its second surface abutting against the stepped surface. An insert block is installed in the groove, with its second surface abutting against the first surface of the pressure window. An adhesive is filled between the insert block and the pressure window. This utility model uses the insert block and adhesive to fix the pressure window in the flange. Compared with the existing O-ring seal and locking mechanism, its installation is simpler, and the thickness can be made thinner.

Description

Technical Field

[0001] This utility model relates to a waveguide pressure window, and more particularly to a pressure window flange structure. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] Pressure windows are passive components used in microwave and millimeter-wave applications to maintain the pressure difference inside and outside the waveguide system while ensuring low-loss electromagnetic signal transmission. Historically, waveguide pressure windows were typically designed with screw-locking structures. Traditional screw-locked pressure window designs required multiple screw holes and O-ring grooves to secure the pressure window and achieve an airtight seal. While this method ensured pressure differential resistance, it necessitated additional space to accommodate the locking mechanism and O-rings, resulting in a complex overall structure, large footprint, and stringent requirements for machining precision and tolerance control. Especially in high-frequency applications, limited flange thickness and structural space exacerbated assembly difficulties, increasing costs and reducing reliability.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a pressure window flange structure that can fix the pressure window in the flange by means of an insert block and an adhesive. Compared with the existing O-ring seal and locking mechanism, it is simple to install and can be made thinner.

[0006] To achieve the above objectives, this utility model discloses the following pressure window flange structure, which includes:

[0007] A flange having a first face and a second face disposed opposite to each other, the flange including a groove and a through hole that are connected to each other, the groove being connected to the first face of the flange, the through hole being connected to the second face of the flange, and a stepped surface facing the first face of the flange being provided at the connection between the groove and the through hole;

[0008] A pressure window is installed in the groove, and the second side of the pressure window is fitted against the step surface;

[0009] An embedded block is installed in the groove, and the second surface of the embedded block is fitted against the first surface of the pressure window;

[0010] An adhesive is provided between the embedded block and the pressure window.

[0011] As a further description of the above technical solution, the second side of the embedded block is provided with an airtight adhesive groove, and the adhesive is filled in the airtight adhesive groove.

[0012] As a further description of the above technical solution, the airtight adhesive groove is configured as an annular ring surrounding the edge of the embedded block.

[0013] As a further description of the above technical solution, a slot is provided on the step surface, the size of the slot is equal to the size of the pressure window, and the slot is used to limit the pressure window.

[0014] As a further description of the above technical solution, the outer contour dimension of the embedded block is equal to the outer contour dimension of the groove, and when the embedded block is installed in the groove, there is no gap between the embedded block and the inner wall of the groove.

[0015] As a further description of the above technical solution, the thickness of the embedded block is equal to the thickness of the groove, and when the embedded block is installed in the groove, the first surface of the flange is coplanar with the first surface of the embedded block.

[0016] As a further description of the above technical solution, the pressure window is set as a rectangular sheet made of polytetrafluoroethylene.

[0017] As a further description of the above technical solution, the projection surface of the pressure window at least covers all of the through holes.

[0018] As a further description of the above technical solution, the adhesive is made of epoxy resin.

[0019] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0020] This utility model's pressure window flange structure uses an insert block to fix the pressure window in the flange with adhesive. Compared to existing O-ring seals and locking mechanisms, it is simpler to install and allows for a thinner profile. Specifically, during installation, only the second side of the insert block needs to be coated with adhesive and pressed firmly into the groove. After the adhesive cures, both fixation and density are achieved simultaneously. The process is streamlined and involves fewer steps, making it highly practical.

[0021] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a split view of one side of the first face of a pressure window flange structure provided in the embodiments of this specification;

[0024] Figure 2 This is a split view of one side of the second side of a pressure window flange structure provided in the embodiments of this specification;

[0025] Figure 3 This is a three-dimensional schematic diagram of a pressure window flange structure provided in the embodiments of this specification;

[0026] In the picture:

[0027] 1. Flange; 11. Groove; 12. Through hole; 13. Stepped surface; 131. Slot;

[0028] 2. Pressure window;

[0029] 3. Embedded block; 31. Airtight glue groove. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0032] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0033] Please see Figure 1-3 This embodiment provides a pressure window flange structure, wherein the pressure window flange structure includes:

[0034] Flange 1, the flange 1 has a first surface and a second surface disposed opposite to each other, the flange 1 includes a groove 11 and a through hole 12 that are connected to each other, the groove 11 is connected to the first surface of the flange 1, the through hole 12 is connected to the second surface of the flange 1, and a stepped surface 13 facing the first surface of the flange 1 is provided at the connection between the groove 11 and the through hole 12.

[0035] Pressure window 2, which is installed in the groove 11, and the second surface of the pressure window 2 is fitted to the step surface 13;

[0036] An embedded block 3 is installed in the groove 11, and the second surface of the embedded block 3 is fitted against the first surface of the pressure window 2.

[0037] An adhesive is filled between the embedded block 3 and the pressure window 2.

[0038] In the above structure, flange 1 is set as a rectangular block structure, flange 1 is installed on the corresponding setting, and bolt holes for installation are provided at the four corners of flange 1. Pressure window 2 is set as a rectangular plate structure installed in flange 1. Embedded block 3 is set as a rectangular gasket block filled in flange 1. Pressure window 2, embedded block 3 and groove 1 for installing pressure window 2 and embedded block 3 are all set at a relatively central position on flange 1.

[0039] During installation, the operator first inserts the pressure window 2 into the groove 11, so that the second side of the pressure window 2 is set against the step surface 13. Then, adhesive is applied to one side of the second side of the embedding block 3, so that the adhesive covers at least part of one side of the second side of the embedding block 3. Then, the embedding block 3 is inserted into the groove 11 until the adhesive on the second side of the embedding block 3 comes into contact with the first side of the pressure window 2.

[0040] After installation, because the insert block 3 is tightly packed in the groove 11, it is not easy for the insert block 3 to detach from the groove 11. This allows the second surface of the insert block 3 to tightly press and fix the pressure window 2. Furthermore, due to the adhesive between the pressure window 2 and the insert block 3, the airtight structure and mechanical fixation are completed after curing. Specifically, after the insert block 3 is squeezed and filled, the adhesive is also squeezed. The adhesive itself can cure and connect only with the pressure window 2, or it can cure and connect simultaneously with the pressure window 2 and the inner wall of the groove 11 or the stepped surface 13, depending on the amount of adhesive. When it cures and connects simultaneously with the pressure window 2 and the inner wall of the groove 11 or the stepped surface 13, the adhesive itself also serves to mechanically fix the insert block 3 and the flange 1.

[0041] In this embodiment, the pressure window 2 can be fixed in the flange 1 by means of an embedded block 3 and an adhesive. Compared with the existing O-ring seal and locking mechanism, this method is simpler to install and can be made thinner. Specifically, during installation, only the second side of the embedded block 3 needs to be coated with adhesive and pressed into the groove 11. After the adhesive cures, both fixing and density are achieved simultaneously. The operation process is simple and has few steps, making it highly practical.

[0042] The adhesive mentioned above can be made of high-temperature resistant epoxy resin, which has stable material properties and a reasonable price.

[0043] Furthermore, the second surface of the embedded block 3 is provided with an airtight adhesive groove 31, in which the adhesive is filled. Specifically, the airtight adhesive groove 31 is configured as an annular ring surrounding the edge of the embedded block 3. The airtight adhesive groove 31 itself can be configured as a groove recessed from the second surface of the embedded block 3 towards the first surface. Its main function is to ensure that when the adhesive is pre-applied to one side of the second surface of the embedded block 3, the amount of adhesive applied is sufficient, and the adhesive will not easily drip during the initial application.

[0044] Furthermore, a groove 131 is provided on the stepped surface 13. The size of the groove 131 is equal to the size of the pressure window 2. The groove 131 is used to limit the pressure window 2. The groove 131 itself can be set as a recessed groove from the stepped surface 13 towards the second surface of the flange 1, so that the pressure window 2 can be embedded in it to prevent it from being horizontally displaced relative to the stepped surface 13.

[0045] Furthermore, the outer contour dimensions of the embedding block 3 are equal to the outer contour dimensions of the groove 11, and when the embedding block 3 is installed in the groove 11, there is no gap between the embedding block 3 and the inner wall of the groove 11. Specifically, see [link to relevant documentation]. Figure 1The outer wall of the embedded block 3 can be installed in the groove 11 so that there is no gap between the first surface of the flange 1 or the inner wall of the groove 11 and the embedded block 3. The embedded block 3 is actually filled into the groove 11 of the flange 1 to achieve tight filling and play a certain mechanical fixing and sealing effect.

[0046] Furthermore, the thickness of the embedding block 3 is equal to the thickness of the groove 11. When the embedding block 3 is installed in the groove 11, the first surface of the flange 1 is coplanar with the first surface of the embedding block 3. In this embodiment, the thickness of the flange 1 can be minimized, and the first surface of the flange 1 can obtain a complete, smooth plane, avoiding dust accumulation.

[0047] In the above embodiment, the pressure window 2 is a rectangular sheet made of polytetrafluoroethylene. Of course, in other embodiments, the material of the pressure window 2 can be replaced with dielectric materials such as ceramic, quartz, or Kapton, depending on the specifications.

[0048] In this embodiment, the projected surface of the pressure window 2 at least covers all of the through holes 12. In practice, the through holes 12 are configured as rectangular holes with similar shapes but smaller hole sizes than the grooves 11, but with the same center point. Therefore, the stepped surface 13 can actually be one end face of a stepped structure formed by the intersecting holes.

[0049] Specifically, in the above embodiment, the embedded block 3 is actually set as an annular block with a hole in the middle so as not to obstruct the permeability of the groove 11.

[0050] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.

[0051] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0052] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A pressure window flange structure, characterized in that, The pressure window flange structure includes: A flange having a first face and a second face disposed opposite to each other, the flange including a groove and a through hole that are connected to each other, the groove being connected to the first face of the flange, the through hole being connected to the second face of the flange, and a stepped surface facing the first face of the flange being provided at the connection between the groove and the through hole; A pressure window is installed in the groove, and the second side of the pressure window is fitted against the step surface; An embedded block is installed in the groove, and the second surface of the embedded block is fitted against the first surface of the pressure window; An adhesive is provided between the embedded block and the pressure window.

2. The pressure window flange structure according to claim 1, characterized in that: The second side of the embedded block is provided with an airtight adhesive groove, and the adhesive is filled in the airtight adhesive groove.

3. The pressure window flange structure according to claim 2, characterized in that: The airtight adhesive groove is configured as an annular ring surrounding the edge of the embedded block.

4. The pressure window flange structure according to claim 1, characterized in that: A slot is provided on the step surface, the size of which is equal to the size of the pressure window, and the slot is used to limit the pressure window.

5. The pressure window flange structure according to claim 1, characterized in that: The outer contour dimensions of the embedded block are equal to the outer contour dimensions of the groove, and when the embedded block is installed in the groove, there is no gap between the embedded block and the inner wall of the groove.

6. The pressure window flange structure according to claim 1, characterized in that: The thickness of the embedded block is equal to the thickness of the groove, and when the embedded block is installed in the groove, the first surface of the flange is coplanar with the first surface of the embedded block.

7. The pressure window flange structure according to claim 1, characterized in that: The pressure window is a rectangular sheet made of polytetrafluoroethylene.

8. The pressure window flange structure according to claim 1, characterized in that: The projected surface of the pressure window at least covers all of the through holes.

9. The pressure window flange structure according to claim 1, characterized in that: The adhesive is made of epoxy resin.

Images