Optoelectronic interference shielding device

Abstract

The utility model discloses an optical shielding interference device, include: box, the open mouth of box front side, the closed cover, the closed cover includes the connecting plate and the closing board, and the connecting plate sliding connection is in the top of box, and the inside symmetry of closing board is fixed with the closing strip, the sealed assembly, sealed assembly includes the rubber tube, and the vertical groove is opened to the both sides symmetry of box, and the rubber tube is fixed in the vertical groove, and the through -hole is opened to the rubber tube, and the through -hole is linked together with the box, the gas supply component, and the gas supply component is connected with the rubber tube through the delivery pipe, the back gas component, and the back gas component is installed in the top inside box, and the back gas component is connected with the gas temperature control system, and the gas temperature control system is connected with the gas supply component, temperature monitoring component, temperature monitoring component is installed in the box, and the inside symmetry of closing board is provided with the electromagnetic shielding material layer in the box. The utility model has realized the reliable sealing of the connecting place of box and closing board, has protected the equipment in the box from the influence of outside environment, and also has improved the effect of optical shielding.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding technology, and in particular to a photoelectric shielding interference device. Background Technology

[0002] Atomic fluorescence spectrometry is an analytical technique that uses an excitation source of a certain intensity to irradiate the atomic vapor of an analyte, causing it to emit fluorescence. The intensity of the atomic fluorescence is measured by a photodetector, establishing a relationship between the fluorescence intensity and the concentration of the analyte, thus determining the content of the analyte in the sample. Dispersive atomic fluorescence spectrometers belong to the category of atomic spectral analysis instruments, and the photodetector, a heliophotomultiplier tube, is one of the most important and core components of the instrument. The photodetector converts the resonance fluorescence generated by the analyte into an electrical signal. Since the signal received by the photodetector is generally very weak and highly susceptible to electromagnetic interference, minimizing electromagnetic interference is a crucial technical aspect. If electromagnetic interference cannot be effectively shielded, the resulting "noise" will severely interfere with the detector's output signal.

[0003] Based on the above-mentioned technical problems, this utility model provides a photoelectric shielding interference device. Utility Model Content

[0004] The purpose of this invention is to provide a photoelectric shielding interference device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a photoelectric shielding interference device, comprising:

[0006] The enclosure has an open front and a window on one side. A window frame is installed inside the window, and the window frame includes a pressure frame for a support frame. The support frame matches the shape of the window, and the pressure frame is fixed to one side of the support frame. The pressure frame abuts against the inner wall of the enclosure, and the inner wall of the pressure frame is covered with a conductive film. Waveguide openings are provided on the conductive film.

[0007] The enclosure includes a connecting plate and a closing plate. The connecting plate is slidably connected to the top of the housing, and the closing plate is vertically fixed to one end of the connecting plate. Closing strips are symmetrically fixed on the inner side of the closing plate.

[0008] A sealing assembly, comprising a rubber tube, vertical grooves symmetrically formed on both sides of the housing, the vertical grooves being formed along the height of the housing, the rubber tube being fixed in the vertical grooves, the rubber tube being closed at both ends, the rubber tube being correspondingly arranged with the sealing strip, and a through hole being formed on the rubber tube, the through hole communicating with the housing;

[0009] An air supply assembly is installed outside the housing and is connected to the rubber hose via a delivery pipe.

[0010] A return gas assembly is installed at the top of the chamber and is connected to a gas temperature control system, which in turn is connected to the gas supply assembly.

[0011] A temperature monitoring component is installed inside the enclosure, and the gas temperature control system and the temperature monitoring component are respectively connected to the controller;

[0012] The box body and the inner side of the sealing plate are respectively provided with electromagnetic shielding material layers, and the electromagnetic shielding material layers are in contact with the conductive film.

[0013] According to the photoelectric shielding interference device provided by this utility model, the gas supply component includes a gas supply pump, which is connected to the gas temperature control system. A three-way valve is installed at the output end of the gas supply pump. A conduit is fixed at one end of the three-way valve. The conduit passes through the side wall of the housing and is connected to the rubber tube. A gas supply pipe is installed at the other end of the three-way valve. The gas supply pipe passes through the side wall of the housing and is connected to the inner cavity of the housing. An adjustable pressure gas core is installed in the through hole on the side wall of the rubber tube.

[0014] According to the photoelectric shielding interference device provided by this utility model, the gas return component includes a mounting base, which is fixed inside the box. A pipe is fixed on the mounting base, and several through holes are opened on the pipe. The through holes communicate with the box. A gas return pipe is fixed on the pipe and connected to a gas return pump. The gas return pump is located outside the box and connected to the gas temperature control system.

[0015] According to the photoelectric shielding interference device provided by this utility model, a support plate is vertically and fixedly connected to the bottom of the sealing plate, and the support plate is slidably connected to the bottom wall of the box.

[0016] According to the photoelectric shielding interference device provided by this utility model, the temperature monitoring component includes a temperature sensor, and several sets of the temperature sensor are installed inside the box.

[0017] According to the photoelectric shielding interference device provided by this utility model, the sealing plate and the box are fixed together by a locking buckle.

[0018] According to the photoelectric shielding interference device provided by this utility model, a support assembly is installed at the bottom of the box. The support assembly is provided in four sets. The support assembly includes a support screw and a base. The support screw is vertically threaded to the bottom of the box, and the base is fixed to the bottom of the support screw.

[0019] The present invention discloses the following technical effects:

[0020] 1) By expanding the rubber tube and tightly fitting it with the sealing strip, a reliable seal is achieved at the connection between the enclosure and the sealing plate, effectively blocking external light, dust, moisture and other external factors from entering the enclosure, protecting the equipment inside the enclosure from the influence of the external environment, and also improving the photoelectric shielding effect.

[0021] 2) The coordinated operation of the temperature monitoring components, controller, gas temperature control system, gas supply components, and gas return components enables real-time monitoring and precise adjustment of the temperature inside the chamber, ensuring that the equipment inside the chamber operates in a suitable temperature environment, avoiding equipment performance degradation or damage due to excessively high or low temperatures, and improving the reliability and service life of the equipment.

[0022] 3) Electromagnetic shielding material layers are installed inside the enclosure and on the inner side of the sealing panel. These layers are in contact with the conductive film, forming a continuous electromagnetic shielding structure. This effectively shields against external electromagnetic interference, preventing the equipment inside the enclosure from being affected by electromagnetic interference, and also preventing the leakage of electromagnetic signals generated by the equipment inside the enclosure. This meets the requirements of application scenarios with high electromagnetic environment requirements. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the photoelectric shielding interference device of this utility model;

[0025] Figure 2 This is a schematic diagram showing the fit between the enclosure and the box body of this utility model.

[0026] The components include: 1. Housing; 2. Connecting plate; 3. Sealing plate; 4. Rubber hose; 5. Sealing strip; 6. Mounting base; 7. Pipe; 8. Return air pipe; 9. Support plate; 10. Vertical groove; 11. Air supply pump; 12. Three-way valve; 13. Conduit; 14. Air supply pipe; 15. Adjustable pressure air core; 16. Return air pump; 17. Gas temperature control system; 18. Window. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-2 This utility model provides a photoelectric shielding interference device, comprising:

[0030] The enclosure 1 has an open front side and a window 18 on one side. A window frame is installed inside the window 18. The window frame includes a pressure frame for the support frame. The support frame matches the shape of the window 18. The pressure frame is fixed to one side of the support frame and abuts against the inner wall of the enclosure. The inner wall of the pressure frame is covered with a conductive film, and waveguide openings are provided on the conductive film.

[0031] The enclosure includes a connecting plate 2 and a sealing plate 3. The connecting plate 2 is slidably connected to the top of the box 1, and the sealing plate 3 is vertically fixed to one end of the connecting plate 2. The sealing plate 3 has sealing strips 5 symmetrically fixed on its inner side.

[0032] The sealing assembly includes a rubber tube 4. Vertical grooves 10 are symmetrically opened on both sides of the box body 1. The vertical grooves 10 are opened along the height of the box body 1. The rubber tube 4 is fixed in the vertical grooves 10. Both ends of the rubber tube 4 are closed. The rubber tube 4 is correspondingly set with the sealing strip 5. A through hole is opened on the rubber tube 4, and the through hole communicates with the box body 1.

[0033] The air supply component is installed outside the housing 1 and is connected to the rubber hose 4 via a delivery pipe.

[0034] The gas return component is installed at the top of the housing 1. The gas return component is connected to the gas temperature control system 17. The gas temperature control system 17 is connected to the gas supply component.

[0035] Temperature monitoring component, the temperature monitoring component is installed in the housing 1, and the gas temperature control system 17 and the temperature monitoring component are respectively connected to the controller;

[0036] Electromagnetic shielding material layers are respectively provided inside the box 1 and on the inner side of the sealing plate 3, and the electromagnetic shielding material layers are in contact with the conductive film.

[0037] Place the equipment requiring optoelectronic interference shielding inside the enclosure 1, then push the connecting plate 2 of the enclosure to slide along the top of the enclosure 1, causing the sealing plate 3 to move until the sealing plate 3 closes the front opening of the enclosure 1. At this point, the sealing strip 5 on the inner side of the sealing plate 3 will insert into the enclosure 1 and form a seal by contacting the rubber tube 4.

[0038] When the gas supply assembly is activated, gas is supplied to the rubber tube 4 through the delivery pipe. The gas then enters the rubber tube 4 through the conduit 13, causing the rubber tube 4 to expand. A perforation needs to be made in the side wall of the housing 1, through which the conduit 13 passes and connects to the rubber tube 4. The perforation also needs to be sealed. The expanded rubber tube 4 fits tightly against the sealing strip 5, thus sealing the connection between the housing 1 and the sealing plate 3, preventing external light, electromagnetic waves, and other interference factors from entering the housing 1.

[0039] The temperature monitoring component monitors the temperature inside chamber 1 in real time and transmits the temperature data to the controller. The controller compares the received temperature data with a preset temperature range. If the temperature inside chamber 1 exceeds the preset range, the controller sends a signal to the gas temperature control system 17. The gas temperature control system 17 controls the operation of the gas supply component and the gas return component based on the received signal. When the temperature inside chamber 1 is too high, the gas temperature control system 17 controls the gas return component to start, extracting the hot air from inside chamber 1. The gas temperature control system 17 uses temperature monitoring and air temperature regulation devices (such as air compressors that can heat or cool the air; considering practical needs, this part is mainly responsible for cooling the air) to regulate the temperature before inputting it into chamber 1.

[0040] Electromagnetic shielding material layers are installed inside the enclosure and on the inner side of the sealing plate. These layers are in contact with the conductive film to form a continuous electromagnetic shielding structure, effectively shielding against external electromagnetic interference and preventing the equipment inside the enclosure from being affected by electromagnetic interference. They also prevent the leakage of electromagnetic signals generated by the equipment inside the enclosure.

[0041] The scheme is further optimized. The gas supply component includes a gas supply pump 11, which is connected to the gas temperature control system 17. A three-way valve 12 is installed at the output end of the gas supply pump 11. A conduit 13 is fixed at one end of the three-way valve 12. The conduit 13 passes through the side wall of the housing 1 and is connected to the rubber tube 4. A gas supply pipe 14 is installed at the other end of the three-way valve 12. The gas supply pipe 14 passes through the side wall of the housing 1 and is connected to the inner cavity of the housing 1. An adjustable pressure gas core 15 is installed in the through hole on the side wall of the rubber tube 4.

[0042] The scheme is further optimized. The gas return component includes a mounting base 6, which is fixed inside the housing 1. A pipe 7 is fixed on the mounting base 6. Several through holes are opened on the pipe 7, which are connected to the housing 1. A gas return pipe 8 is fixed on the pipe 7, which is connected to a gas return pump 16. The gas return pump 16 is located outside the housing 1 and is connected to a gas temperature control system 17.

[0043] The scheme is further optimized by fixing a support plate 9 vertically to the bottom of the closed plate 3, and the support plate 9 is slidably connected to the bottom wall of the box 1.

[0044] Further optimization of the solution: the temperature monitoring component includes temperature sensors, and several sets of temperature sensors are installed inside the housing 1.

[0045] The design was further optimized by fixing the sealing plate 3 to the box body 1 with a locking mechanism.

[0046] Further optimization of the design: a support assembly is installed at the bottom of the housing 1. The support assembly consists of four sets, including a support screw and a base. The support screw is vertically threaded to the bottom of the housing 1, and the base is fixed to the bottom of the support screw.

[0047] After placing the equipment into housing 1, push the connecting plate 2 of the enclosure to allow the sealing plate 3, along with the support plate 9, to slide along the top and bottom walls of housing 1 until the sealing plate 3 closes the front opening of housing 1. Secure the sealing plate 3 to housing 1 with the latches to prevent loosening.

[0048] The gas temperature control system 17 controls the gas supply pump 11 to start based on the temperature information fed back by the temperature monitoring component. The gas output by the gas supply pump 11 is distributed by the three-way valve 12. Part of the gas enters the rubber tube 4 through the conduit 13, causing the rubber tube 4 to expand. The other part of the gas enters the inner cavity of the chamber 1 through the gas supply pipe 14 to help regulate the temperature inside the chamber 1.

[0049] The gas temperature control system 17 simultaneously controls the start of the return gas pump 16. The gas in the chamber 1 enters the pipe 7 through the through hole on the pipe 7, and is then drawn out of the chamber 1 by the return gas pump 16 through the return gas pipe 8, forming an airflow circulation. Together with the gas supply pump 11, they jointly regulate the temperature inside the chamber 1 to a suitable range.

[0050] By rotating the support screw, the height of the base is adjusted to ensure that the housing 1 is in a horizontal and stable state, thus preventing the housing 1 from shaking due to uneven ground and affecting the operation of the equipment.

[0051] Choose a small oil-free air compressor, such as an air pump from the Ottos brand. The model can be selected according to the size of the housing 1 and the required air supply, such as the 30L-8 model. It has the advantages of low noise, stable air supply, and no need to add lubricating oil, which can avoid the contamination of the equipment inside the housing 1 by lubricating oil.

[0052] Three-way valve 12: A three-way ball valve made of brass, such as the products of Shanghai Hugong Valve Factory. This type of valve has good sealing performance, corrosion resistance, flexible operation, and can accurately control the flow of gas.

[0053] Adjustable pressure air core 15: The adjustable air valve core is made of plastic. By rotating the air core, the size of the through hole can be adjusted, thereby controlling the air pressure inside the rubber tube 4 and ensuring the sealing effect.

[0054] Return air pump 16: Similarly, a small oil-free return air pump 16 is selected, with a similar approach to the selection of brand and model as the air supply pump 11, to ensure stable return air and no oil contamination.

[0055] Pipe 7: Pipe 7 is made of PVC material. This type of pipe is inexpensive, corrosion-resistant, lightweight, and easy to install and process through holes.

[0056] Temperature sensor: The DS18B20 digital temperature sensor is selected. This sensor has high accuracy, a wide measurement range (-55℃ to +125℃), strong anti-interference ability, and can be connected to the controller via a single bus, making it easy to install and use. Installing multiple temperature sensors can improve the accuracy of temperature monitoring; for example, one set can be installed at the top, middle, and bottom of enclosure 1.

[0057] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 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.

[0058] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A photoelectric shielding interference device, characterized in that, include: Box (1), the front of the box (1) is open, and a window (18) is opened on one side of the box (1). A window frame is installed in the window (18). The window frame includes a pressure frame of the support frame. The support frame matches the shape of the window (18). The pressure frame is fixed to one side of the support frame. The pressure frame abuts against the inner wall of the box. The inner wall of the pressure frame is covered with a conductive film. Waveguide openings are opened on the conductive film. The enclosure includes a connecting plate (2) and a sealing plate (3). The connecting plate (2) is slidably connected to the top of the box (1). The sealing plate (3) is vertically fixed to one end of the connecting plate (2). Sealing strips (5) are symmetrically fixed on the inner side of the sealing plate (3). A sealing assembly, comprising a rubber tube (4), vertical grooves (10) symmetrically opened on both sides of the housing (1), the vertical grooves (10) being opened along the height of the housing (1), the rubber tube (4) being fixed in the vertical grooves (10), the two ends of the rubber tube (4) being closed, the rubber tube (4) being correspondingly arranged with the sealing strip (5), and a through hole being opened on the rubber tube (4), the through hole being connected to the housing (1); An air supply assembly is installed outside the housing (1) and is connected to the rubber hose (4) via a delivery pipe. A return gas assembly is installed at the top inside the housing (1). The return gas assembly is connected to a gas temperature control system (17), which is connected to the gas supply assembly. Temperature monitoring component, the temperature monitoring component is installed in the housing (1), the gas temperature control system (17) and the temperature monitoring component are respectively connected to the controller; Electromagnetic shielding material layers are respectively provided inside the box (1) and inside the sealing plate (3), and the electromagnetic shielding material layers are in contact with the conductive film.

2. The photoelectric shielding interference device according to claim 1, characterized in that: The gas supply assembly includes a gas supply pump (11), which is connected to the gas temperature control system (17). A three-way valve (12) is installed at the output end of the gas supply pump (11). A conduit (13) is fixed at one end of the three-way valve (12). The conduit (13) passes through the side wall of the housing (1) and is connected to the rubber tube (4). A gas supply pipe (14) is installed at the other end of the three-way valve (12). The gas supply pipe (14) passes through the side wall of the housing (1) and is connected to the inner cavity of the housing (1). An adjustable pressure gas core (15) is installed in the through hole on the side wall of the rubber tube (4).

3. The photoelectric shielding interference device according to claim 1, characterized in that: The gas return assembly includes a mounting base (6), which is fixed inside the housing (1). A pipe (7) is fixed on the mounting base (6), and several through holes are opened on the pipe (7). The through holes communicate with the housing (1). A gas return pipe (8) is fixed on the pipe (7), and the gas return pipe (8) is connected to a gas return pump (16). The gas return pump (16) is located outside the housing (1) and is connected to the gas temperature control system (17).

4. The photoelectric shielding interference device according to claim 1, characterized in that: The bottom of the closed plate (3) is vertically and fixedly connected to a support plate (9), and the support plate (9) is slidably connected to the bottom wall of the box (1).

5. The photoelectric shielding interference device according to claim 1, characterized in that: The temperature monitoring component includes temperature sensors, and several sets of temperature sensors are installed inside the housing (1).

6. The photoelectric shielding interference device according to claim 1, characterized in that: The sealing plate (3) is fixed to the box body (1) by a latch.

7. The photoelectric shielding interference device according to claim 1, characterized in that: The bottom of the housing (1) is equipped with a support assembly. The support assembly is provided in four sets. The support assembly includes a support screw and a base. The support screw is vertically threaded to the bottom of the housing (1), and the base is fixed to the bottom of the support screw.

Images