Nitrogen filling device for photoelectric product and external air tightness detection

Abstract

A nitrogen filling device used for photoelectric product external air tightness detection comprises an inflating needle head (8) used for being placed in an air inlet of a photoelectric product, a pressure reducing valve (3) used for being connected with a nitrogen storage tank, a barometer (6) used for measuring the pressure value of nitrogen in the photoelectric product, and a pipeline assembly arranged among the inflating needle head (8), the pressure reducing valve (3) and the barometer (6). By means of the pipeline assembly, the inflating needle head (8), the pressure reducing valve (3) and the barometer (6) are communicated and connected with one another, the photoelectric product is inflated with nitrogen through the inflating needle head (8), the pressure value of the nitrogen in the photoelectric product is monitored on line through the pressure reducing valve (3) and the barometer (6), the nitrogen in the photoelectric product is within a limited range, and the photoelectric product is protected. The technical problem that nitrogen is directly charged by using a nitrogen cylinder is solved, so that the risk of damage to photoelectric products in the nitrogen charging process is reduced.

Description

Technical Field

[0001] The utility model relates to a nitrogen filling device, in particular to a nitrogen filling device used for photoelectric products and external air tightness detection. Background Art

[0002] Photoelectric products refer to products that convert light into electricity, electricity into light, and multiple photoelectric conversions through electrical properties. They are usually composed of metal shells, optical lenses, electronic and polymer components. Due to their high precision, they have particularly high requirements for corrosion protection. If air is filled inside, the cavity will fog or frost in high or low temperature environments. In high humidity environments, water vapor in the air enters the cavity, which can easily cause the optical lenses to grow mycelium or mold. In high salt fog environments, external air with salt entering the cavity can cause corrosion of metal parts, failure of electronic components, and other problems. When the nitrogen content and purity inside the product cavity are high enough , which can effectively slow down the aging of the internal materials of the product. The best solution for long-term mildew, anti-fog and corrosion protection of existing optoelectronic products is to fill the product cavity with dry and clean nitrogen. After strict sealing, it is isolated from the outside air and creates a sterile and oxygen-free environment inside the cavity. Therefore, the nitrogen filling device for optoelectronic products is an important optoelectronic product process equipment. In the existing nitrogen filling devices for optoelectronic products, nitrogen is directly filled with nitrogen cylinders. Since the output pressure cannot be detected in real time, high-pressure nitrogen can easily cause impact damage to optoelectronic products, thereby increasing the risk of damage to optoelectronic products during the nitrogen filling process.

[0003] It is also impossible to perform nitrogen filling operations on multiple products at the same time.

[0004] The utility model has the technical feature of making the nitrogen in the photoelectric product within a limited range, and has carried out effective exploration and research on the technical problem of directly filling nitrogen with nitrogen bottles.

[0005] The statements here only provide background technology related to the present utility model and do not necessarily constitute prior art. The application technical solution of the present invention is made based on the technical briefing document provided by the applicant on August 18, 2024, which solves actual technical problems in the work process, and the existing technical problems, technical features and technical effects in the similar patent documents and background technology obtained through retrieval. Summary of the Invention

[0006] The object of the utility model is a nitrogen filling device used for photoelectric products and external air tightness detection.

[0007] In order to overcome the above technical shortcomings, the purpose of the present invention is to provide a nitrogen filling device for photoelectric products and external air tightness detection, thereby reducing the risk of damage to the photoelectric products during the nitrogen filling process.

[0008] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it includes an air pumping needle for being placed in the air inlet of the optoelectronic product, a pressure reducing valve for being connected to the nitrogen storage tank, a pressure gauge for measuring the nitrogen pressure value in the optoelectronic product, and a pipeline assembly arranged between the air pumping needle, the pressure reducing valve and the pressure gauge.

[0009] Due to the design of the inflation needle, pressure reducing valve, pressure gauge and pipeline assembly, the inflation needle, pressure reducing valve and pressure gauge are interconnected through the pipeline assembly. The inflation needle can be used to fill the photoelectric product with nitrogen. The pressure reducing valve and pressure gauge can be used to monitor the nitrogen pressure value in the photoelectric product online, so that the nitrogen in the photoelectric product is within a limited range, which solves the technical problem of directly filling the nitrogen with a nitrogen cylinder, thereby reducing the risk of damage to the photoelectric product during the nitrogen filling process.

[0010] The utility model is designed to connect an air pump needle, a pressure reducing valve, an air pressure gauge and a pipeline component to each other in a manner that the nitrogen in the photoelectric product is kept within a limited range.

[0011] The utility model is designed to connect the pressure reducing valve and the pressure gauge with the air pump needle and the pipeline component in a manner of online monitoring of the nitrogen pressure value in the photoelectric product.

[0012] The utility model is designed that a pipeline component comprises a high-pressure hose and a diverter valve.

[0013] The technical effects of the above three technical solutions are: highlighting the technical feature of keeping the nitrogen in the optoelectronic product within a limited range, and introducing the application in the technical field of nitrogen filling devices for optoelectronic products and external air tightness detection.

[0014] The utility model is designed to further include a first accessory device, and the first accessory device is arranged between the pressure reducing valve and the pipeline component, and the first accessory device is arranged as a gas filter.

[0015] The technical effect of the above technical solution is that it realizes the integrated installation of other components and expands the technical effect of the utility model.

[0016] The utility model is designed to respectively provide a pressure reducing valve and a diverter valve on the gas filter, a pressure gauge and an air pump needle on the diverter valve, and high-pressure hoses are respectively provided between the gas filter and the pressure reducing valve, between the gas filter and the diverter valve, between the diverter valve and the pressure gauge, and between the diverter valve and the air pump needle.

[0017] The technical effect of the above technical solution is that the basic technical solution of the utility model is formed by the gas filter, pressure reducing valve, high-pressure hose, pressure gauge, diverter valve and inflation needle, which solves the technical problem of the utility model.

[0018] The utility model is designed such that the air pump needle is configured as an inflation needle, the input port of the air pump needle is configured to be connected to a high-pressure hose located on a diverter valve, and the output port of the air pump needle is configured to be connected to an air inlet of a photoelectric product.

[0019] The technical effect of the above technical solution is that it realizes the nitrogen transportation treatment of optoelectronic products.

[0020] The utility model is designed that the pressure reducing valve is arranged as a film type pressure reducing valve, the output port of the pressure reducing valve is arranged to be connected with a high-pressure hose located on a gas filter, and the input port of the pressure reducing valve is arranged to be connected with a high-pressure hose located on a nitrogen storage bottle.

[0021] The technical effect of the above technical solution is that it realizes the reduced pressure transportation of nitrogen.

[0022] The utility model is designed that the air pressure gauge is arranged as a dial type tire pressure gauge and the port portion of the air pressure gauge is arranged to be connected with the high-pressure hose located on the diverter valve.

[0023] The technical effect of the above technical solution is that it realizes the measurement of the ammonia pressure value in the photoelectric product.

[0024] The utility model is designed that the diverter valve is configured to include an intermediate cylinder portion, a nozzle portion III, a nozzle portion IV and a valve portion, and the intermediate portion of one end of the peripheral side surface of the intermediate cylinder portion is configured to be communicatively connected with the inner port portion of the nozzle portion III, the intermediate portion of the other end of the peripheral side surface of the intermediate cylinder portion is configured to be communicatively connected with the inner port portion of the nozzle portion IV, and the port portion of the valve portion is configured to be connected with the cross-sectional port portion of the nozzle portion IV, the outer port portion of the nozzle portion III is configured to be connected with the high-pressure hose located on the gas filter, and the outer port portion of one of the nozzle portions IV is configured to be connected with the high-pressure hose located on the pressure gauge, and the outer port portion of the other nozzle portion IV is configured to be connected with the high-pressure hose located on the air pressure gauge.

[0025] The utility model is designed that the middle cylinder is set as a tubular body with a blocked port portion, and the nozzle portion III and the nozzle portion IV are respectively set as hose nozzles, the nozzle portion IV is set to be arranged and distributed at intervals along the transverse center line of the middle cylinder, and the valve portion is set as a spherical stop valve.

[0026] The technical effect of the above two technical solutions is that multiple nitrogen channels are realized.

[0027] The utility model is designed in such a way that a high-pressure hose is configured as a fiber-reinforced nylon hose, and one of the ports of the first high-pressure hose and one of the ports of the second high-pressure hose are respectively configured to be connected to a gas filter, wherein another port of the first high-pressure hose is configured to be connected to a pressure reducing valve, and another port of the second high-pressure hose, one of the ports of the third high-pressure hose and one of the ports of the fourth high-pressure hose are respectively configured to be connected to a diverter valve, wherein another port of the third high-pressure hose is configured to be connected to an air pressure gauge, and another port of the fourth high-pressure hose is configured to be connected to an air needle, and pipe clamps are respectively provided on the port of the first high-pressure hose and the port of the second high-pressure hose.

[0028] The technical effect of the above technical solution is that: the gas filter, the pressure reducing valve, the pressure gauge, the diverter valve and the air pump needle are interconnected.

[0029] The utility model is designed, and a gas filter is provided to include a box shell portion, a nozzle portion I, a nozzle portion II and a handle portion I, and one side portion of the end surface of the box shell portion is provided to be connected in a communicating manner with the inner port portion of the nozzle portion I, another side portion of the end surface of the box shell portion is provided to be connected in a communicating manner with the inner port portion of the nozzle portion II, and the middle portion of the upper end surface of the box shell portion is provided to be connected to the vertical end head of the handle portion I, the outer port portion of the nozzle portion I is provided to be connected to the high-pressure hose located on the pressure reducing valve, and the outer port portion of the nozzle portion II is provided to be connected to the high-pressure hose located on the diverter valve.

[0030] The utility model is designed that the box shell portion is configured as a box-shaped body with a nitrogen filter core tube in the middle portion of the cavity, and the nozzle portion I and the nozzle portion II are respectively configured as hose nozzles, one of the port portions of the nitrogen filter core tube located in the box shell portion is configured to be connected in a communicating manner with the nozzle portion I, and the other port portion of the nitrogen filter core tube located in the box shell portion is configured to be connected in a communicating manner with the nozzle portion II, and the handle portion I is configured as a U-shaped rod-shaped body.

[0031] The technical effects of the above two technical solutions are: achieving filtering and cleaning treatment of nitrogen.

[0032] The utility model is designed such that the pressure gauge, the diverter valve, the air pumping needle and the high-pressure hose are distributed in a manner of online monitoring of nitrogen, the pressure gauge, the diverter valve, the air pumping needle and the high-pressure hose and the gas filter are distributed in a manner of filtering nitrogen, and the pressure gauge, the diverter valve, the air pumping needle and the high-pressure hose and the pressure reducing valve are distributed in a manner of stabilizing the pressure of nitrogen.

[0033] The utility model is designed that a plurality of high-pressure hoses are arranged between the air-inflation needle and the diverter valve, and the nozzle part III is arranged to be connected with the nozzle part II through the high-pressure hose.

[0034] The utility model is designed to include a box shell, and the box shell is configured to include a box part, a lining block part and a handle part II, and the box part is configured to be connected to the lining block part, one of the side middle parts of the box part is configured to be connected to the longitudinal part of the handle part II, and the lining block part is respectively configured to be inclusively connected to the gas filter, the pressure reducing valve, the high-pressure hose, the pressure gauge, the diverter valve and the air injection needle.

[0035] The utility model is designed in such a way that the box portion is configured as a box-shaped body with a flip cover and the lining block portion is configured as a sponge block body with storage tanks corresponding to the gas filter, the pressure reducing valve, the high-pressure hose, the pressure gauge, the diverter valve and the air injection needle, and the handle portion II is configured as a U-shaped rod-shaped body.

[0036] The technical effects of the above two technical solutions are: achieving portable carrying of the gas filter, the pressure reducing valve, the high-pressure hose, the pressure gauge, the diverter valve and the air-inflating needle.

[0037] In this technical solution, the pressure reducing valve and the pressure gauge are basic components and are also necessary technical features of the utility model. The gas filter, high-pressure hose, diverter valve, air needle and box shell are functional components and are features for achieving other technical effects of the utility model. The design of these technical features, namely, the box shell part, nozzle part I, nozzle part II, handle part I, intermediate cylinder part, nozzle part III, nozzle part IV, valve part, box part, liner part and handle part II, is a technical feature that complies with the Patent Law and its implementing rules.

[0038] In this technical solution, the nitrogen in the photovoltaic product is kept within a limited range by a pressure reducing valve and a pressure gauge.

[0039] In this technical solution, the inflation needle, pressure reducing valve, pressure gauge and pipeline assembly that keep the nitrogen in the optoelectronic product within a limited range are important technical features. In the technical field of nitrogen filling devices used for optoelectronic products and external air tightness detection, it has novelty, creativity and practicality. The terms in this technical solution can be explained and understood using patent documents in this technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 This is a schematic diagram of one of the first embodiments of the present invention.

[0042] Figure 2 This is a schematic diagram of the third embodiment of the present invention.

[0043] Gas filter-2, pressure reducing valve-3, high-pressure hose-4, pressure gauge-6, diverter valve-7, air injection needle-8, box shell-1, box shell part-21, nozzle part I-22, nozzle part II-23, handle part I-24, intermediate cylinder part-71, nozzle part III-72, nozzle part IV-73, valve part-74, box part-11, lining part-12, handle part II-13. DETAILED DESCRIPTION

[0044] According to the Examination Guidelines, terms such as “having”, “including” and “comprising” used in the present invention should be understood as not precluding the existence or addition of one or more other elements or their combinations.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following examples are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or follow the conventional methods in the field.

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] Figure 1 This is one of the first embodiments of the present utility model. This embodiment is described in detail with reference to the accompanying drawings. It includes a gas filter 2, a pressure reducing valve 3, a high-pressure hose 4, a pressure gauge 6, a diverter valve 7 and an air injection needle 8. The pressure reducing valve 3 and the diverter valve 7 are respectively provided on the gas filter 2, and the pressure gauge 6 and the air injection needle 8 are respectively provided on the diverter valve 7. A high-pressure hose 4 is respectively provided between the gas filter 2 and the pressure reducing valve 3, between the gas filter 2 and the diverter valve 7, between the diverter valve 7 and the pressure gauge 6, and between the diverter valve 7 and the air injection needle 8.

[0050] The second embodiment of the first embodiment of the present invention is described in detail with reference to the accompanying drawings. The gas filter 2 is configured to include a box shell portion 21, a nozzle portion I 22, a nozzle portion II 23 and a handle portion I 24, and one side portion of the end face of the box shell portion 21 is configured to be connected in a communicating manner with the inner port portion of the nozzle portion I 22, another side portion of the end face of the box shell portion 21 is configured to be connected in a communicating manner with the inner port portion of the nozzle portion II 23, and the middle portion of the upper end face of the box shell portion 21 is configured to be connected to the vertical end of the handle portion I 24, the outer port portion of the nozzle portion I 22 is configured to be connected to the high-pressure hose 4 located on the pressure reducing valve 3, and the outer port portion of the nozzle portion II 23 is configured to be connected to the high-pressure hose 4 located on the diverter valve 7.

[0051] The gas filter 2 forms a support connection point for the pressure reducing valve 3, the high-pressure hose 4 and the diverter valve 7. The nozzle part I 22 and the nozzle part II 23 realize the connection with the high-pressure hose 4. The nozzle part I 22 realizes the connection with the pressure reducing valve 3. The nozzle part II 23 realizes the connection with the diverter valve 7. The box shell part 21 realizes the filtering treatment of nitrogen. The handle part I 24 realizes the driving of the box shell part 21 for transportation and processing. Its technical purpose is to be used as a component for cleaning nitrogen.

[0052] In this embodiment, the box shell portion 21 is configured as a box-shaped body with a nitrogen filter core tube in the middle portion of the cavity, and the nozzle portion I 22 and the nozzle portion II 23 are respectively configured as hose nozzles, one of the port portions of the nitrogen filter core tube located in the box shell portion 21 is configured to be communicatively connected to the nozzle portion I 22, and the other port portion of the nitrogen filter core tube located in the box shell portion 21 is configured to be communicatively connected to the nozzle portion II 23, and the handle portion I 24 is configured as a U-shaped rod-shaped body.

[0053] The technical purpose is to realize the built-in installation of the nitrogen filter core tube.

[0054] In this embodiment, the pressure reducing valve 3 is configured as a diaphragm pressure reducing valve and the output port portion of the pressure reducing valve 3 is configured to be connected to the high-pressure hose 4 located on the gas filter 2, and the input port portion of the pressure reducing valve 3 is configured to be connected to the high-pressure hose 4 located on the nitrogen storage bottle.

[0055] The pressure reducing valve 3 forms a supporting connection point for the gas filter 2 and the high-pressure hose 4. The pressure reducing valve 3 realizes the connection with the gas filter 2 and the high-pressure hose 4. Its technical purpose is to serve as a component for stabilizing the output of nitrogen from the nitrogen storage bottle.

[0056] In this embodiment, the diverter valve 7 is configured to include an intermediate cylinder portion 71, a nozzle portion III 72, a nozzle portion IV 73 and a valve portion 74, and the middle portion of one end of the peripheral side surface of the intermediate cylinder portion 71 is configured to be connected in a communicating manner with the inner port portion of the nozzle portion III 72, the middle portion of the other end of the peripheral side surface of the intermediate cylinder portion 71 is configured to be connected in a communicating manner with the inner port portion of the nozzle portion IV 73, and the port portion of the valve portion 74 is configured to be connected to the cross-sectional port portion of the nozzle portion IV 73, the outer port portion of the nozzle portion III 72 is configured to be connected to the high-pressure hose 4 located on the gas filter 2, and the outer port portion of one of the nozzle portions IV 73 is configured to be connected to the high-pressure hose 4 located on the pressure gauge 6, and the outer port portion of another nozzle portion IV 73 is configured to be connected to the high-pressure hose 4 located on the air pressure gauge 6.

[0057] Through the diverter valve 7, a support connection point for the gas filter 2, the high-pressure hose 4, the pressure gauge 6 and the air needle 8 is formed. The nozzle part III 72 realizes the connection with the gas filter 2, the nozzle part IV 73 realizes the connection with the pressure gauge 6 and the air needle 8, the nozzle part III 72 and the nozzle part IV 73 realize the connection with the high-pressure hose 4, the intermediate cylinder part 71 realizes the support connection processing of the nozzle part III 72 and the nozzle part IV 73, and the valve part 74 realizes the opening and closing control of the nozzle part IV 73. Its technical purpose is to be used as a component for branching the pipeline supply to the pressure gauge 6 and the air needle 8.

[0058] In this embodiment, the intermediate cylinder 71 is configured as a tubular body with a sealed port portion and the nozzle portion III 72 and the nozzle portion IV 73 are respectively configured as hose nozzles, the nozzle portion IV 73 is configured to be spaced and distributed along the transverse center line of the intermediate cylinder 71 and the valve portion 74 is configured as a spherical stop valve.

[0059] The technical purpose is to realize the simultaneous supply of nitrogen to the pressure gauge 6 and the air-inflating needle 8.

[0060] In this embodiment, the air pressure gauge 6 is configured as a dial-type tire pressure gauge and a port portion of the air pressure gauge 6 is configured to be connected to the high-pressure hose 4 located on the diverter valve 7 .

[0061] The pressure gauge 6 forms a support connection point for the high-pressure hose 4 and the diverter valve 7. The pressure gauge 6 realizes the connection with the high-pressure hose 4 and the diverter valve 7. Its technical purpose is to serve as a component for measuring the nitrogen pressure value in the diverter valve 7.

[0062] In this embodiment, the air needle 8 is set as an inflation needle and the input port of the air needle 8 is set to be connected to the high-pressure hose 4 located on the diverter valve 7, and the output port of the air needle 8 is set to be connected to the air inlet of the optoelectronic product.

[0063] A supporting connection point for the high-pressure hose 4 and the diverter valve 7 is formed by the air-inflating needle 8. The air-inflating needle 8 realizes the connection with the high-pressure hose 4 and the diverter valve 7. Its technical purpose is to be used as a component for injecting nitrogen into optoelectronic products.

[0064] In this embodiment, the high-pressure hose 4 is configured as a fiber-reinforced nylon hose and one of the ports of the first high-pressure hose 4 and one of the ports of the second high-pressure hose 4 are respectively configured to be connected to the gas filter 2, another of the ports of the first high-pressure hose 4 is configured to be connected to the pressure reducing valve 3 and another of the ports of the second high-pressure hose 4, one of the ports of the third high-pressure hose 4 and one of the ports of the fourth high-pressure hose 4 are respectively configured to be connected to the diverter valve 7, another of the ports of the third high-pressure hose 4 is configured to be connected to the pressure gauge 6 and another of the ports of the fourth high-pressure hose 4 is configured to be connected to the air needle 8, and pipe clamps are respectively provided on the ports of the first high-pressure hose 4 and the ports of the second high-pressure hose 4.

[0065] Through the high-pressure hose 4, a supporting connection point is formed for the gas filter 2, the pressure reducing valve 3, the pressure gauge 6, the diverter valve 7 and the air needle 8. The high-pressure hose 4 realizes the connection with the gas filter 2, the pressure reducing valve 3, the pressure gauge 6, the diverter valve 7 and the air needle 8. Its technical purpose is to serve as a component for connecting the pressure reducing valve 3, the gas filter 2, the diverter valve 7, the pressure gauge 6 and the air needle 8.

[0066] In this embodiment, the pressure gauge 6, the diverter valve 7, the air needle 8 and the high-pressure hose 4 are arranged to be distributed in a manner of online monitoring of nitrogen, and the pressure gauge 6, the diverter valve 7, the air needle 8 and the high-pressure hose 4 and the gas filter 2 are arranged to be distributed in a manner of filtering nitrogen, the pressure gauge 6, the diverter valve 7, the air needle 8 and the high-pressure hose 4 and the pressure reducing valve 3 are arranged to be distributed in a manner of stabilizing the pressure of nitrogen, multiple high-pressure hoses 4 are arranged between the air needle 8 and the diverter valve 7, and the nozzle part III 72 is arranged to be connected to the nozzle part II 23 through the high-pressure hose 4.

[0067] The method of using this embodiment is as follows: install one of the ports of the first high-pressure hose 4 on the nozzle part I 22, install one of the ports of the second high-pressure hose 4 on the nozzle part II 23, install another port of the first high-pressure hose 4 on the output port of the pressure reducing valve 3, install another port of the second high-pressure hose 4 on the nozzle part III 72, install one of the ports of the third high-pressure hose 4 and one of the ports of the fourth high-pressure hose 4 on the nozzle part IV 73 respectively, and install one of the ports of the third high-pressure hose 4 on the nozzle part IV 73. The other port is installed on the port of the pressure gauge 6, and the other port of the fourth high-pressure hose 4 is installed on the input port of the air pump needle 8. Pipe clamps are installed on the ports of the first high-pressure hose 4 and the second high-pressure hose 4 respectively. The input port of the pressure reducing valve 3 is connected to the high-pressure hose 4 on the nitrogen storage bottle, so that the nitrogen storage bottle is in an open state. The pressure reducing valve 3 measures the nitrogen pressure value in the nitrogen storage bottle to determine the nitrogen storage amount in the nitrogen storage bottle. When the nitrogen storage amount in the nitrogen storage bottle meets the use requirements,

[0068] Remove the blocking bolt on the air inlet of the photoelectric product, insert the air pumping needle 8 into the air inlet of the photoelectric product, connect the air pumping needle 8 to the air inlet of the photoelectric product, open the nitrogen storage bottle, open the pressure reducing valve 3, inject the nitrogen in the nitrogen storage bottle into the photoelectric product, and measure the nitrogen pressure value in the photoelectric product by the barometer 6. When the nitrogen pressure value is 1.5 times the saturated nitrogen pressure value in the photoelectric product, close the pressure reducing valve 3 and the nitrogen storage bottle, separate the air pumping needle 8 from the air inlet of the photoelectric product, and keep it for a specified time. By observing the change in the nitrogen pressure value in the photoelectric product of the barometer 6, the sealing performance of the photoelectric product is judged, thereby realizing the detection of the sealing performance of the photoelectric product.

[0069] When the sealing performance of the optoelectronic product is qualified, the air outlet sealing bolt on the optoelectronic product is removed to release the nitrogen in the optoelectronic product, and then the sealing bolt on the air outlet of the optoelectronic product is reinstalled on the air outlet of the optoelectronic product, so that the optoelectronic product is in the nitrogen filling station, and the air pumping needle 8 is inserted into the air inlet of the optoelectronic product, so that the nitrogen storage bottle is in an open state, and the pressure reducing valve 3 is in a slowly open state, and the nitrogen in the nitrogen storage bottle is injected into the optoelectronic product. The nitrogen pressure value in the optoelectronic product is measured by the barometer 6. When the nitrogen pressure value is equal to the full nitrogen pressure value in the optoelectronic product, the air pumping needle 8 is kept in the air inlet of the optoelectronic product for a specified time. When the air pumping needle 8 is placed in the air inlet of the optoelectronic product for a specified time, the air pumping needle 8 is taken out from the air inlet of the optoelectronic product, and the sealing bolt on the air inlet of the optoelectronic product is reinstalled on the air inlet of the optoelectronic product, thereby realizing the nitrogen filling of the optoelectronic product.

[0070] After the photoelectric product is filled with nitrogen, the pipe clamps on the ports of the first high-pressure hose 4 and the second high-pressure hose 4 are removed, the first high-pressure hose 4 is removed from between the nozzle part I22 and the pressure reducing valve 3, the second high-pressure hose 4 is removed from between the nozzle part II23 and the nozzle part III72, the third high-pressure hose 4 is removed from between the nozzle part IV73 and the pressure gauge 6, and the fourth high-pressure hose 4 is removed from between the nozzle part IV73 and the inflation needle 8.

[0071] Figure 2 This is the third embodiment of the first embodiment of the present utility model. This embodiment is described in detail with reference to the accompanying drawings. It includes a box shell 1, and the box shell 1 is configured to include a box part 11, a lining part 12 and a handle part II 13. The box part 11 is configured to be connected to the lining part 12. The middle part of one of the side surfaces of the box part 11 is configured to be connected to the longitudinal part of the handle part II 13, and the lining part 12 is respectively configured to be inclusively connected to the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air injection needle 8.

[0072] Through the box shell 1, support connection points for the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air needle 8 are formed. The lining block part 12 realizes the connection with the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air needle 8. The box part 11 supports and connects the lining block part 12, and the handle part II 13 drives the box part 11 for transportation and processing. Its technical purpose is to serve as a supporting carrier for the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air needle 8.

[0073] In this embodiment, the box portion 11 is configured as a box-shaped body with a flip cover and the lining block portion 12 is configured as a sponge block body with storage slots corresponding to the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air injection needle 8, and the handle portion Ⅱ13 is configured as a U-shaped rod-shaped body.

[0074] The technical purpose is to provide buffering, protection and support for the gas filter 2, the pressure reducing valve 3, the high-pressure hose 4, the pressure gauge 6, the diverter valve 7 and the air injection needle 8.

[0075] The method of using this embodiment is as follows: put the box part 11 in the open state, put the gas filter 2, pressure reducing valve 3, high-pressure hose 4, pressure gauge 6, diverter valve 7 and air injection needle 8 into the corresponding storage tank body, put the box part 11 in the closed state, and lift the box part 11 through the handle part II 13.

[0076] When verifying the present utility model, the inventor abandoned the existing technical feature of directly filling nitrogen with nitrogen cylinders, and first proposed a technical feature of keeping the nitrogen in the optoelectronic product within a limited range, and obtained the first unexpected technical effect: achieving consistency in the nitrogen pressure value in the optoelectronic product, and achieving uniform optimization and setting of the components of the optoelectronic product, and obtained the second unexpected technical effect: achieving metering of the amount of nitrogen in the optoelectronic product, and expanding the scope of use of the optoelectronic product, and obtained the third unexpected technical effect: achieving metering of the nitrogen pressure borne by the components of the optoelectronic product, and extending the service life of the optoelectronic product, and obtained the fourth unexpected technical effect: achieving online monitoring of the pressure value of nitrogen for transportation, and facilitating the nitrogen filling operation of the optoelectronic product, and obtained the fifth unexpected technical effect: achieving external airtightness testing of the optoelectronic product, and obtained the sixth unexpected technical effect: achieving nitrogen flushing and cleaning for preliminary airtightness testing of the optoelectronic product, and improving the purity of the nitrogen in the optoelectronic product.

[0077] In the second embodiment of the present invention, the air pump needle 8, the pressure reducing valve 3, the pressure gauge 6 and the pipeline assembly are connected to each other in such a way that the nitrogen in the photoelectric product is kept within a limited range.

[0078] In this embodiment, the pressure reducing valve 3 and the pressure gauge 6 are connected to the air pumping needle 8 and the pipeline assembly in a manner to perform online monitoring of the nitrogen pressure value in the optoelectronic product.

[0079] In this embodiment, the pipeline assembly includes a high-pressure hose 4 and a diverter valve 7 .

[0080] In this embodiment, a first accessory device is further included and is arranged between the pressure reducing valve 3 and the pipeline assembly. The first accessory device is configured as a gas filter 2 .

[0081] The second embodiment of the present invention is based on the first embodiment.

[0082] The utility model has the following features:

[0083] 1. Due to the design of the inflation needle 8, the pressure reducing valve 3, the pressure gauge 6 and the pipeline assembly, the inflation needle 8, the pressure reducing valve 3 and the pressure gauge 6 are interconnected through the pipeline assembly. The inflation needle 8 is used to fill the photoelectric product with nitrogen. The pressure reducing valve 3 and the pressure gauge 6 are used to monitor the nitrogen pressure value in the photoelectric product online, so that the nitrogen in the photoelectric product is kept within a limited range. This solves the technical problem of directly filling the nitrogen with a nitrogen bottle, thereby reducing the risk of damage to the photoelectric product during the nitrogen filling process.

[0084] 2. Due to the design of the high-pressure hose 4 and the diverter valve 7, the output of nitrogen is realized.

[0085] 3. Due to the design of the gas filter 2, the nitrogen can be filtered.

[0086] 4. Since the design limits the numerical range of the structural shape, the numerical range is the technical feature in the technical solution of the utility model, and is not a technical feature calculated by formula or obtained through a limited number of tests. Tests have shown that the technical feature of this numerical range has achieved good technical effects.

[0087] 5. Due to the design of the technical features of the present invention, the effects of the individual and combined technical features have been shown through experiments to show that the performance indicators of the present invention are at least 1.7 times that of the existing performance indicators, and the evaluation shows that the present invention has a good market value.

[0088] There are other technical features connected to the air injection needle 8, the pressure reducing valve 3, the pressure gauge 6 and the pipeline assembly for keeping the nitrogen in the photoelectric product within a limited range, which are all embodiments of the present utility model, and the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, the Patent Implementing Rules and the Examination Guidelines, all possible combinations of the technical features in the above-mentioned embodiments will no longer be described.

[0089] Therefore, in the technical field of nitrogen filling devices used for photoelectric products and external air tightness detection, all technical contents including an air filling needle 8 for placement in the air inlet of the photoelectric product, a pressure reducing valve 3 for connection to the nitrogen storage tank, a pressure gauge 6 for measuring the nitrogen pressure value in the photoelectric product, and a pipeline assembly arranged between the air filling needle 8, the pressure reducing valve 3 and the pressure gauge 6 are within the protection scope of this utility model.

Claims

1. A nitrogen filling device for photoelectric products and external air tightness detection, characterized by: The invention comprises an air-inflating needle (8) for being placed in the air inlet of a photoelectric product, a pressure reducing valve (3) for being connected to a nitrogen storage tank, a pressure gauge (6) for measuring the nitrogen pressure value in the photoelectric product, and a pipeline assembly arranged between the air-inflating needle (8), the pressure reducing valve (3) and the pressure gauge (6). The pipeline assembly includes a high-pressure hose (4) and a diverter valve (7). It also includes a first accessory device and the first accessory device is arranged between the pressure reducing valve (3) and the pipeline assembly, and the first accessory device is set as a gas filter (2). A pressure reducing valve (3) and a diverter valve (7) are respectively provided on the gas filter (2); a pressure gauge (6) and an air pump needle (8) are respectively provided on the diverter valve (7); and a high-pressure hose (4) is respectively provided between the gas filter (2) and the pressure reducing valve (3), between the gas filter (2) and the diverter valve (7), between the diverter valve (7) and the pressure gauge (6), and between the diverter valve (7) and the air pump needle (8).

2. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1 is characterized in that: The air pump needle (8), the pressure reducing valve (3), the pressure gauge (6) and the pipeline assembly are connected to each other in a manner such that the nitrogen in the photoelectric product is within a limited range.

3. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 2 is characterized in that: The pressure reducing valve (3) and the pressure gauge (6) are connected to the air pumping needle (8) and the pipeline assembly in a manner of online monitoring of the nitrogen pressure value in the photoelectric product.

4. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1 is characterized by: The air pumping needle (8) is configured as an inflation needle and the input port of the air pumping needle (8) is configured to be connected to a high-pressure hose (4) located on a diverter valve (7), and the output port of the air pumping needle (8) is configured to be connected to an air inlet of a photoelectric product.

5. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1 is characterized by: The pressure reducing valve (3) is configured as a diaphragm pressure reducing valve, and the output port of the pressure reducing valve (3) is configured to be connected to a high-pressure hose (4) located on the gas filter (2), and the input port of the pressure reducing valve (3) is configured to be connected to a high-pressure hose (4) located on the nitrogen storage bottle.

6. The nitrogen filling device for photoelectric products and external air tightness detection according to claim 1 is characterized in that: the air pressure The gauge (6) is configured as a dial-type tire pressure gauge and a port portion of the pressure gauge (6) is configured to be connected to a high-pressure hose (4) located on a diverter valve (7).

7. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1 is characterized by: The diverter valve (7) is configured to include an intermediate cylinder (71), a nozzle portion III (72), a nozzle portion IV (73) and a valve portion (74), and the intermediate portion of one end of the peripheral side surface of the intermediate cylinder (71) is configured to be connected in a communication manner with the inner port portion of the nozzle portion III (72), the intermediate portion of the other end of the peripheral side surface of the intermediate cylinder (71) is configured to be connected in a communication manner with the inner port portion of the nozzle portion IV (73), and the port portion of the valve portion (74) is configured to be connected to the cross-sectional port portion of the nozzle portion IV (73), the outer port portion of the nozzle portion III (72) is configured to be connected to the high-pressure hose (4) located on the gas filter (2), and the outer port portion of one of the nozzle portions IV (73) is configured to be connected to the high-pressure hose (4) located on the pressure gauge (6), and the outer port portion of another nozzle portion IV (73) is configured to be connected to the high-pressure hose (4) located on the air injection needle (8).

8. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 7, characterized in that: The middle cylinder (71) is configured as a tubular body with a blocked port portion, and the nozzle portion III (72) and the nozzle portion IV (73) are configured as hose nozzles, respectively. The nozzle portion IV (73) is configured to be spaced and distributed along the transverse center line of the middle cylinder (71), and the valve portion (74) is configured as a spherical stop valve.

9. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1 is characterized by: The high-pressure hose (4) is configured as a fiber-reinforced nylon hose, and one of the ports of the first high-pressure hose (4) and one of the ports of the second high-pressure hose (4) are respectively configured to be connected to a gas filter (2), another of the ports of the first high-pressure hose (4) is configured to be connected to a pressure reducing valve (3), another of the ports of the second high-pressure hose (4), one of the ports of the third high-pressure hose (4), and one of the ports of the fourth high-pressure hose (4) are respectively configured to be connected to a diverter valve (7), another of the ports of the third high-pressure hose (4) is configured to be connected to a pressure gauge (6), and another of the ports of the fourth high-pressure hose (4) is configured to be connected to an air needle (8), and pipe clamps are respectively provided on the ports of the first high-pressure hose (4) and the ports of the second high-pressure hose (4).

10. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1, characterized in that: The gas filter (2) is configured to include a box shell (21), a nozzle part I (22), a nozzle part II (23) and a handle part I (24), and one side portion of the end surface of the box shell (21) is configured to be connected in a communication manner with the inner port portion of the nozzle part I (22), the other side portion of the end surface of the box shell (21) is configured to be connected in a communication manner with the inner port portion of the nozzle part II (23), and the middle portion of the upper end surface of the box shell (21) is configured to be connected to the vertical end of the handle part I (24), the outer port portion of the nozzle part I (22) is configured to be connected to the high-pressure hose (4) located on the pressure reducing valve (3), and the outer port portion of the nozzle part II (23) is configured to be connected to the high-pressure hose (4) located on the diverter valve (7).

11. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 10, characterized in that: The box shell portion (21) is configured as a box-shaped body having a nitrogen filter core tube in the middle portion of the cavity, and the nozzle portion I (22) and the nozzle portion II (23) are respectively configured as hose nozzles, one of the port portions of the nitrogen filter core tube located in the box shell portion (21) is configured to be connected in a communication manner with the nozzle portion I (22), and the other port portion of the nitrogen filter core tube located in the box shell portion (21) is configured to be connected in a communication manner with the nozzle portion II (23), and the handle portion I (24) is configured as a U-shaped rod-shaped body.

12. The nitrogen filling device for photoelectric products and external air tightness detection according to any one of claims 1 to 11, characterized in that: the air pressure The pressure gauge (6), the diverter valve (7), the air-inflating needle (8) and the high-pressure hose (4) are arranged in a manner of online monitoring of nitrogen, and the pressure gauge (6), the diverter valve (7), the air-inflating needle (8) and the high-pressure hose (4) and the gas filter (2) are arranged in a manner of filtering nitrogen, and the pressure gauge (6), the diverter valve (7), the air-inflating needle (8) and the high-pressure hose (4) and the pressure reducing valve (3) are arranged in a manner of stabilizing the pressure of nitrogen.

13. The nitrogen filling device for photoelectric product and external air tightness detection according to any one of claims 1 to 11, characterized in that: A plurality of high-pressure hoses (4) are arranged between the air-inflation needle (8) and the diverter valve (7), and the nozzle portion III (72) is arranged to be connected to the nozzle portion II (23) through the high-pressure hose (4).

14. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 1, characterized in that: The invention comprises a box shell (1), and the box shell (1) is configured to include a box portion (11), a lining block portion (12) and a handle portion II (13), and the box portion (11) is configured to be connected to the lining block portion (12), a middle portion of one side surface of the box portion (11) is configured to be connected to the longitudinal portion of the handle portion II (13), and the lining block portion (12) is configured to be respectively connected to a gas filter (2), a pressure reducing valve (3), a high-pressure hose (4), a pressure gauge (6), a diverter valve (7) and an air pump needle (8) in an inclusive manner.

15. The nitrogen filling device for photoelectric product and external air tightness detection according to claim 14, characterized in that: The box portion (11) is configured as a box-shaped body with a flip cover, and the lining block portion (12) is configured as a sponge block having storage tanks corresponding to the gas filter (2), the pressure reducing valve (3), the high-pressure hose (4), the pressure gauge (6), the diverter valve (7) and the air-inflation needle (8), and the handle portion II (13) is configured as a U-shaped rod-shaped body.

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