Detector protective cap

Abstract

The utility model discloses a detector protective cap, which belongs to the technical field of X-ray sensors and comprises an outer shell sleeved outside the X-ray sensor, the inner diameter of the outer shell is smaller than the outer diameter of the X-ray sensor, and a plurality of open slots are uniformly arranged on the outer shell around the axis. The device is small in structure and convenient and firm to install, meanwhile, a protective film can be conveniently bonded, glue cannot overflow, and the dustproof and breathable effects can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray sensor technology, specifically relating to a detector protective cap. Background Technology

[0002] An X-ray sensor (detector) is a sensor that can detect X-rays and convert them into a usable output signal.

[0003] Due to the scarcity of beryllium ore, graphene windows have gradually become the mainstream material for X-ray sensor windows. However, graphene windows are thinner and more susceptible to damage and contamination from dust and other contaminants. X-ray sensors are also very expensive, and accidental damage during use can cause significant losses. Furthermore, since they are directly exposed to the environment during use, graphene windows are easily contaminated and damaged. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a detector protective cap.

[0005] This utility model provides the following technical solution:

[0006] A detector protective cap, characterized in that it includes an outer shell that is fitted over an X-ray sensor, the inner diameter of the outer shell being smaller than the outer diameter of the X-ray sensor, and the outer shell having a plurality of opening slots uniformly arranged around an axis.

[0007] Specifically, this also includes a light window film installed at the window of the X-ray sensor.

[0008] Specifically, the inner diameter of the outer casing is 0.05-0.1 mm smaller than the outer diameter of the X-ray sensor.

[0009] Specifically, the window of the outer casing corresponds to the window of the X-ray sensor, the pressure ring is inserted into the window of the outer casing, and the protective film is adhered to the pressure ring.

[0010] Specifically, the bottom surface of the pressure ring is provided with an annular groove. After the glue is injected into the annular groove, the protective film is then bonded to the pressure ring, and a gap is left between the main housing and the pressure ring.

[0011] Specifically, the surface roughness value of the contact surface between the housing and the X-ray sensor is either trough-crest or crest-trough.

[0012] Specifically, the contact surface between the outer casing and the X-ray sensor is provided with a gap due to the microscopic presence of surface roughness.

[0013] The beneficial effects of this utility model are:

[0014] This device is small in size and easy and secure to install. It also facilitates the application of protective film without causing adhesive to overflow, and achieves both dustproof and breathable effects. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a cross-sectional view and an enlarged view of point A of this utility model;

[0017] Figure 2 This is a front view of surface A-A' of this utility model;

[0018] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0019] The markings in the diagram are: 1. Pressure ring; 2. Outer shell; 3. Protective film; 4. Light window film; 5. X-ray sensor; 6. Annular groove; 7. Opening groove; 8. Gap 2. Detailed Implementation

[0020] like Figures 1-3 As shown, this utility model provides a detector protective cap, including a light window film 4 provided at the window of the X-ray sensor 5, an outer shell 2 that is fitted over the X-ray sensor 5, the inner diameter of the outer shell 2 being smaller than the outer diameter of the X-ray sensor 5, and a plurality of opening slots 7 uniformly provided around the axis on the outer shell 2.

[0021] The windows of X-ray sensors (detectors) are currently mainly made of graphene and do not have protective caps. They are directly exposed to the environment during use and are easily contaminated and damaged. Therefore, protective caps are designed for detectors to prevent them from being directly exposed to the air during use.

[0022] Meanwhile, since the X-ray detector 5 is a device that receives light sources, the larger the spatial angle at which it receives the light source, the better. That is, the window of the X-ray sensor 5 should be as close to the light source as possible. Therefore, the structure of the protective cap should be as small as possible, the distance between the protective film 3 and the window should be as small as possible, and the protective film 3 should be as thin as possible to increase the light transmittance.

[0023] Secondly, an opening groove is cut into the outer shell 2 of the protective cap as an installation method. This installation method involves directly tightening the protective cap onto the X-ray sensor 5, which is convenient to install and also secure.

[0024] Specifically, the inner diameter of the outer casing 2 is 0.05-0.1 mm smaller than the outer diameter of the X-ray sensor 5.

[0025] Furthermore, the window of the outer casing 2 corresponds to the window of the X-ray sensor 5, the pressure ring 1 is inserted into the window of the outer casing 2, and the protective film 3 is adhered to the pressure ring 1.

[0026] Because the installation process must ensure that the protective film 3 is firmly and reliably bonded, the bonding process must not damage the protective film 3, and it must not be touched directly by hand. The surface of the bonded protective film 3 must be flat and smooth. Therefore, it is necessary to ensure that the adhesive is bonded evenly without overflowing and affecting the appearance of the product. Thus, an annular groove 6 is provided on the bottom surface of the pressure ring 1. After the adhesive is injected into the annular groove 6, the protective film 3 is bonded to the pressure ring 1. A gap 1 is left between the main housing 2 and the pressure ring 1. This gap 1 is a suitable space for the adhesive.

[0027] Furthermore, in order to ensure that the gas between the window of the X-ray sensor 5 and the protective film 3 can be smoothly discharged or filled, and to prevent the protective film 3 from being damaged by the pressure difference between the inside and outside of the film due to the vacuum of the test environment, the surface roughness of the contact surface between the outer shell 2 and the X-ray sensor 5 is reasonably designed to achieve the effect of both dust prevention and air circulation.

[0028] When the protective cap and X-ray sensor 5 are attached, the two surfaces come into contact. If both are perfectly smooth, neither dust nor air can pass through. By setting a specific surface roughness value for the two contact surfaces, air can be allowed to pass through while dust cannot enter. This is because surface roughness reflects the height of the protrusions and depressions (crests and troughs) on the surface of an object. There are four typical contact situations at the junction of two objects: crest-crest, crest-trough, trough-crest, and trough-trough. Among them, crest-crest is without gap, and neither air nor dust can pass through. Trough-trough is the case with the largest gap, and both dust and air can pass through. Since the diameter of dust is much larger than that of air, only air can pass through but dust cannot in the trough-crest or crest-trough situation. Therefore, setting the surface roughness value of the two contact surfaces to trough-crest or crest-trough allows air to pass through normally while preventing dust from passing through, achieving the effect of dustproofing and air permeability.

[0029] Therefore, the contact surface between the outer casing 2 and the X-ray sensor 5 is provided with a gap 28 due to the microscopic existence of surface roughness.

[0030] This device is small in size and easy and secure to install. It also facilitates the application of the protective film 3 without causing the adhesive to overflow, and achieves both dustproof and breathable effects.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detector protective cap, characterized in that, The device includes an outer shell that is fitted over the X-ray sensor. The inner diameter of the outer shell is smaller than the outer diameter of the X-ray sensor, and the outer shell has several opening slots evenly arranged around its axis. The window of the outer shell corresponds to the window of the X-ray sensor, a pressure ring is inserted into the window of the outer shell, and a protective film is adhered to the pressure ring.

2. A detector protective cap according to claim 1, characterized in that, It also includes a light window film located at the window of the X-ray sensor.

3. A detector protective cap according to claim 1, characterized in that, The inner diameter of the outer casing is 0.05-0.1 mm smaller than the outer diameter of the X-ray sensor.

4. A detector protective cap according to claim 1, characterized in that, The bottom surface of the pressure ring is provided with an annular groove. After the glue is injected into the annular groove, the protective film is then bonded to the pressure ring, and a gap is left between the main housing and the pressure ring.

5. A detector protective cap according to claim 1, characterized in that, The surface roughness value of the contact surface between the outer casing and the X-ray sensor is either trough-crest or crest-trough.

6. A detector protective cap according to claim 5, characterized in that, The contact surface between the outer casing and the X-ray sensor has a gap due to the microscopic presence of surface roughness.

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