Igniter helium detection device and control method

Abstract

The invention provides an igniter helium detection device and a control method, the detection device comprises a machine body provided with a main chamber and a plurality of auxiliary chambers, and the sum of volume data of the plurality of auxiliary chambers is equal to the volume data of the main chamber; the sealing cover body is used for moving towards the machine body in a lifting manner; the inert gas filling module is used for transmitting inert gas into the second igniter; the detection gas filling module comprises a main gas filling unit and a plurality of auxiliary gas filling units, the main gas filling unit communicates with the main cavity and is used for inputting detection gas into the main cavity, the auxiliary gas filling units are used for communicating the main cavity with the auxiliary cavities, and each auxiliary gas filling unit comprises an auxiliary pressure gauge. Before helium is injected into the second igniter, leakage point detection can be carried out on the sealing connector and / or the welding area of the second igniter at the same time, and the situation that the helium leaks in the filling process is avoided.

Description

Technical Field

[0001] This invention relates to the field of igniter detection technology, and in particular to an igniter helium detection device and control method. Background Technology

[0002] An igniter is a device that can provide enough energy instantly to ignite fuel and output a stable flame. It is widely used in high-safety scenarios such as automobile engines, gas appliances, and fire-fighting drones.

[0003] In the existing technology, the production process of the igniter includes a welding process and a helium filling process. The welding process is to weld the shell and the top cover of the igniter to ensure the overall airtightness of the igniter. The helium filling process is to inject helium into the shell. Taking advantage of the extremely stable chemical properties of helium, it can provide a stable chemical environment for the internal components of the igniter. Currently, helium filling is achieved by sealing the interface between the helium transmission pipe and the top cover, and filling the shell with helium through the helium transmission pipe.

[0004] Although the above production process can produce qualified igniters, the sealing performance of the interface between the gas transmission pipe and the top cover, as well as the sealing performance of the welded area between the shell and the top cover, will affect the helium filling effect during the helium filling process. If there is a fault in the sealing interface and / or the welded area, it will lead to helium leakage. Therefore, the existing production process cannot detect the leakage points of the sealing interface and / or the welded area before injecting helium, resulting in helium leakage during the filling process. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an igniter helium detection device and control method to solve the technical problem in the prior art that the existing generation process cannot simultaneously detect leakage points of the sealing interface and / or welding area before injecting helium, resulting in helium leakage during the filling process.

[0006] One aspect of the present invention is to provide an igniter helium detection device, comprising: The machine body has a main chamber and several auxiliary chambers. The main chamber is used to accommodate a first igniter that meets the quality requirements, and the auxiliary chambers are used to accommodate a second igniter to be processed. The sum of the volume data of the several auxiliary chambers is equal to the volume data of the main chamber. The construction parameters of the first igniter and the construction parameters of the second igniter are the same. A sealing cover, which is used to move up and down toward the machine body to seal the main chamber and the auxiliary chamber; An inert gas filling module includes a plurality of inert gas transmission pipes disposed on the sealing cover, wherein each of the inert gas transmission pipes is respectively positioned opposite each of the sub-chambers, and the inert gas transmission pipes are used to seal and connect with the interface of the second igniter and to transmit inert gas into the second igniter; A detection gas filling module includes a main gas filling unit and several auxiliary gas filling units. The main gas filling unit is connected to the main chamber and is used to input detection gas toward the main chamber. The several auxiliary gas filling units are used to connect the main chamber and the several auxiliary chambers so that the detection gas in the main chamber is evenly distributed through the several auxiliary gas filling units and transmitted to each of the auxiliary chambers respectively. Each of the auxiliary gas filling units includes an auxiliary pressure gauge, which is used to detect the gas pressure in the auxiliary chamber.

[0007] Furthermore, the main gas filling unit includes a main pipe body, a main gas pump, and a main pressure gauge, both of which are connected to the main chamber through the main pipe body; The main air pump is used to input detection gas into the main chamber through the main air pipe, and the main pressure gauge is used to detect the pressure data inside the main chamber.

[0008] Furthermore, the auxiliary gas filling unit also includes an auxiliary pipe and an auxiliary gas pump, wherein the auxiliary pipe is used to connect the auxiliary chamber to the main chamber; The auxiliary air pump and the auxiliary pressure gauge are both located on the auxiliary pipe body. The auxiliary air pump is used to extract the detection gas in the main chamber and output it towards the auxiliary chamber. The auxiliary pressure gauge is used to detect the pressure data in the auxiliary chamber.

[0009] Furthermore, the detection device also includes a first sealing cover plate and a plurality of second sealing cover plates connected to the sealing cover body, wherein an exposed area is formed on both the first sealing cover plate and the second sealing cover plates; Wherein, the exposed area of ​​the first sealing cover is positioned opposite to the sealing interface of the first igniter, and the exposed area of ​​the second sealing cover is positioned opposite to the sealing interface of the second igniter; When the sealing cover is sealed to the body, the first sealing cover plate and the second sealing cover plate are respectively placed on the first igniter and the second igniter to form a main interface sub-cavity and a main weld sub-cavity in the main cavity, and a secondary interface sub-cavity and a secondary weld sub-cavity in the secondary cavity; The main gas filling unit includes main pipe A, main pipe B, main gas pump A, main gas pump B, main pressure gauge A and main pressure gauge B. The auxiliary gas filling unit includes auxiliary pipe A, auxiliary pipe B, auxiliary gas pump A, auxiliary gas pump B, auxiliary pressure gauge A, and auxiliary pressure gauge B.

[0010] Furthermore, the main air pump A and the main pressure gauge A are connected to the main interface sub-cavity through the main pipe body A, and the main air pump B and the main pressure gauge B are connected to the main weld sub-cavity through the main pipe body B; The secondary pipe body A is used to connect the main interface sub-cavity and the secondary interface sub-cavity, wherein the secondary air pump A and the secondary pressure gauge A are both installed on the secondary pipe body A; The secondary pipe body B is used to connect the main weld sub-cavity and the secondary weld sub-cavity, wherein the secondary air pump B and the secondary pressure gauge B are both located on the secondary pipe body B.

[0011] Furthermore, the detection device also includes sealing rings disposed on the sealing cover, the first sealing cover plate, and the second sealing cover plate.

[0012] Furthermore, the multiple auxiliary chambers are arranged circumferentially with the main chamber as the origin.

[0013] Another aspect of the present invention is to provide a control method for an igniter helium detection device, the control method being used to control the aforementioned igniter helium detection device, the control method comprising: When the sealing cover is sealed to the body and the inert gas transmission pipe is sealed to the interface of the second igniter, the main gas filling unit is controlled to input detection gas toward the main chamber; Acquire the input data of the detected gas; The total pressure data of the main chamber is determined based on the input data in the main chamber; Multiple auxiliary gas filling units are controlled to evenly extract the detection gas from the main chamber and input it into the auxiliary chambers; Obtain the auxiliary pressure data in each of the auxiliary chambers according to each of the auxiliary pressure gauges; Determine whether the sum of all the secondary pressure data is equal to the total pressure data; When the sum of all the secondary pressure data equals the total pressure data, the quality of each second igniter is confirmed to be qualified. The inert gas filling module fills the qualified second igniter with inert gas.

[0014] Furthermore, after the step of determining whether the sum of all the secondary pressure data equals the total pressure data, the method further includes: When the sum of all the secondary pressure data is not equal to the total pressure data; The preset pressure data for each of the sub-chambers is determined based on the total pressure data and the number of sub-chambers; If the pressure data of a certain auxiliary chamber is not equal to the preset pressure data, then the quality of the corresponding second igniter is confirmed to be unqualified.

[0015] Furthermore, after the step of determining whether the sum of all the secondary pressure data equals the total pressure data, the method further includes: When the sum of all secondary pressure data is not equal to the total pressure data; Determine if there are any identical data points among all the secondary pressure data; If there are identical data points among all the secondary pressure data, and the number of identical data points is a preset number, then the identical data points are determined to be the preset pressure data. If the pressure data of a certain auxiliary chamber is not equal to the preset pressure data, then the quality of the corresponding second igniter is confirmed to be unqualified.

[0016] Compared with the prior art, the advantages of using the igniter helium detection device and control method shown in this invention are as follows: In the helium detection device for an igniter provided by this invention, there are a body forming a main chamber and several auxiliary chambers, a sealing cover, an inert gas filling module, and a detection gas filling module. To achieve non-destructive filling of helium into the second igniter, it is necessary to ensure the sealing of the welding area in the second igniter and the sealing of the interface between the inert gas transmission pipe and the second igniter. In this application, by moving the sealing cover toward the body, the sealing cover can simultaneously seal the main chamber and several auxiliary chambers. The sum of the volume data of several auxiliary chambers equals the volume data of the main chamber, so that the sum of the initial gas pressure data in each auxiliary chamber equals the initial gas pressure data of the main chamber. Then, the detection gas is filled into the main chamber by the main gas filling unit, causing the gas pressure data in the main chamber to change, thereby forming the pressure data of the detection gas. Since the first igniter in the main chamber is a qualified finished product, the detection gas input into the main chamber cannot penetrate into the first igniter; that is, the detection gas in the main chamber has a defined pressure data. The auxiliary gas filling unit evenly distributes the detection gas in the main chamber to each auxiliary chamber. By judging the gas pressure in the auxiliary chambers, the sealing performance of the welding area of ​​the second igniter and the sealing performance of the interface between the inert gas transmission pipe and the second igniter can be checked. When a leak occurs in the welding area and / or the interface of the second igniter, the gas pressure in the corresponding auxiliary chamber will change. The auxiliary pressure gauge is used to detect the gas pressure data in the auxiliary chamber. When the gas pressure data meets the preset pressure data, inert gas, such as helium, is transmitted to the second igniter through the inert gas transmission pipe to ensure that no leakage occurs when the helium is transmitted to the second igniter. Conversely, when the gas pressure data does not meet the preset pressure data, it can be determined that a leak occurs in the welding area and / or the interface of the second igniter. Through this setting, leak detection of the sealing interface and / or welding area of ​​the second igniter can be performed simultaneously before helium is injected into the second igniter, avoiding leakage of helium during the filling process. Attached Figure Description

[0017] Figure 1 This is a perspective view of the igniter helium detection device in one embodiment of the present invention; Figure 2 This is a front view of the igniter helium detection device in one embodiment of the present invention; Figure 3 for Figure 2 Sectional view of section AA; Figure 4 for Figure 3 Enlarged schematic diagram of part A; Figure 5 This is a front view of the igniter helium detection device in another embodiment of the present invention; Figure 6 for Figure 5 BB section sectional view; Figure 7 for Figure 6 Enlarged schematic diagram of part B; Figure 8 This is an exploded view of the igniter helium detection device in another embodiment of the present invention; Figure 9 for Figure 8 Another perspective view of the central sealing cover; Figure 10 This is a schematic diagram of the structure of the second igniter in one embodiment of the present invention; Figure 11 This is a flowchart of the control method for the igniter helium detection device in one embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 100. Body; 110. Main chamber; 111. Main interface sub-chamber; 112. Main weld sub-chamber; 120. Secondary chamber; 121. Secondary interface sub-chamber; 122. Secondary weld sub-chamber; 200. First igniter; 300. Second igniter; 400. Sealing cover; 500. Inert gas filling module; 510. Inert gas transmission pipe; 600. Detection gas filling module; 610. Main gas filling unit; 611, Supervisory Body; 6111, Supervisory Body A; 6112, Supervisory Body B; 612. Main air pump; 6121. Main air pump A; 6122. Main air pump B; 613. Main pressure gauge; 6131. ​​Main pressure gauge A; 6132. Main pressure gauge B; 620. Secondary gas filling unit; 621. Sub-pipe body; 6211. Sub-pipe body A; 6212. Sub-pipe body B; 622, Auxiliary air pump; 6221, Auxiliary air pump A; 6222, Auxiliary air pump B; 623. Auxiliary pressure gauge; 6231. Auxiliary pressure gauge A; 6232. Auxiliary pressure gauge B; 700, First sealing cover; 800, Second sealing cover; 900, Sealing ring.

[0019] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] First Embodiment Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10 As shown, the igniter helium detection device in the first embodiment of the present invention includes a body 100 having a main chamber 110 and several secondary chambers 120, a sealing cover 400, an inert gas filling module 500, and a detection gas filling module 600.

[0024] It should be noted that the multiple auxiliary chambers 120 are arranged circumferentially with the main chamber 110 as the origin.

[0025] Specifically, the main chamber 110 is used to accommodate the qualified first igniter 200, and the auxiliary chamber 120 is used to accommodate the second igniter 300 to be processed. The sum of the volumes of several auxiliary chambers 120 is equal to the volume of the main chamber 110. The construction parameters of the first igniter 200 and the second igniter 300 are the same. It should be noted that the first igniter 200 is a finished product that has been processed. That is to say, the welding area between the shell and the top cover of the first igniter 200 is of qualified quality, and the sealing interface of the first igniter 200 is sealed. The second igniter 300 is a semi-finished product. During the processing, helium needs to be filled into the second igniter 300.

[0026] The sealing cover 400 is used to move up and down toward the body 100 to seal the main chamber 110 and the auxiliary chamber 120; The inert gas filling module 500 includes a plurality of inert gas transmission pipes 510 disposed on the sealing cover 400, wherein each inert gas transmission pipe 510 is respectively directly opposite each sub-chamber 120, and the inert gas transmission pipe 510 is used to seal and connect with the interface of the second igniter 300 and transmit inert gas into the second igniter 300. The detection gas filling module 600 includes a main gas filling unit 610 and several auxiliary gas filling units 620. The main gas filling unit 610 is connected to the main chamber 110 and is used to input detection gas toward the main chamber 110. The several auxiliary gas filling units 620 are used to connect the main chamber 110 with several auxiliary chambers 120, so that the detection gas in the main chamber 110 is evenly distributed through the several auxiliary gas filling units 620 and transmitted to each auxiliary chamber 120 respectively. Each gas filling unit 620 includes a secondary pressure gauge 623, which is used to detect the gas pressure in the secondary chamber 120.

[0027] In practical implementation, to achieve non-destructive filling of helium into the second igniter 300, it is necessary to ensure the sealing of the welded area in the second igniter 300 and the sealing of the interface between the inert gas transmission pipe 510 and the second igniter 300. In this example, by moving the sealing cover 400 toward the body 100, the sealing cover 400 can simultaneously seal the main chamber 110 and several auxiliary chambers 120. The sum of the volumes of the auxiliary chambers 120 equals the volume of the main chamber 110, ensuring that the initial gas pressure in each auxiliary chamber 120 is... The sum of the data equals the initial gas pressure data of the main chamber 110; then, the main gas filling unit 610 fills the main chamber 110 with detection gas, causing a change in the gas pressure data in the main chamber 110, thus forming the pressure data of the detection gas. Since the first igniter 200 in the main chamber 110 is a qualified finished product, the detection gas input into the main chamber 110 cannot penetrate into the first igniter 200. In other words, the detection gas in the main chamber 110 has a defined pressure data; the detection gas in the main chamber 110 is then filled by several auxiliary gas filling units 620. The gas is evenly distributed and transmitted to each sub-chamber 120. By judging the gas pressure in the sub-chamber 120, the sealing performance of the welded area of ​​the second igniter 300 and the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300 can be quality checked. When a leak occurs in the welded area and / or at the interface of the second igniter 300, the gas pressure in the corresponding sub-chamber 120 will change. The sub-pressure gauge 623 is used to detect the gas pressure data in the sub-chamber 120. When the gas pressure data meets the preset pressure data, then... Inert gas, such as helium, is transferred to the second igniter 300 through the inert gas transfer pipe 510 to ensure that no leakage occurs when helium is transferred to the second igniter 300. Conversely, if the gas pressure data does not meet the preset pressure data, it can be determined that there is a leak point in the welding area and / or interface of the second igniter 300. Through this setting, leak point detection can be performed on the sealing interface and / or welding area of ​​the second igniter 300 before helium is injected into the second igniter 300, so as to avoid leakage of helium during the filling process.

[0028] It should be noted that the sealing cover 400 can be driven by a cylinder in the prior art. Specifically, the output end of the cylinder is connected to the sealing cover 400, which can drive the sealing cover 400 to move toward the machine body 100. The sealing cover 400 can be used to seal the main chamber 110 and each auxiliary chamber 120. It should be noted that the cylinder is not shown in the attached drawings. Since driving the sealing cover 400 to rise and fall is conventional prior art in this field, it will not be described in detail here.

[0029] It should also be noted that the connection between the inert gas transmission pipe 510 and the sealed interface of the second igniter 300 is conventional prior art in this field, and therefore will not be described in detail here.

[0030] Specifically, to facilitate the recording of the gas pressure of the detection gas in the main chamber 110, in this embodiment, the main gas filling unit 610 includes a main pipe 611, a main air pump 612, and a main pressure gauge 613. Both the main air pump 612 and the main pressure gauge 613 are connected to the main chamber 110 through the main pipe 611. The main air pump 612 is used to input the detection gas into the main chamber 110 through the main pipe 611, and the main pressure gauge 613 is used to detect the pressure data in the main chamber 110. In other words, the main air pump 612 and the main pipe 611 can output the detection gas into the main chamber 110, and the main pressure gauge 613 can detect the pressure data in the main chamber 110.

[0031] Furthermore, the auxiliary gas filling unit 620 also includes an auxiliary tube 621 and an auxiliary gas pump 622. The auxiliary tube 621 is used to connect the auxiliary chamber 120 with the main chamber 110. The auxiliary gas pump 622 and the auxiliary pressure gauge 623 are both located on the auxiliary tube 621. The auxiliary gas pump 622 is used to extract the detection gas in the main chamber 110 and output it to the auxiliary chamber 120. The auxiliary pressure gauge 623 is used to detect the pressure data in the auxiliary chamber 120.

[0032] It should be noted that in some optional embodiments, the inert gas transmission tube 510 shown in this embodiment can be a standard tube, limited to simulating the connection state between the tube and the second igniter 300. Helium does not need to be transmitted into the second igniter 300. It should also be noted that, given that the inert gas transmission tube 510 occupies a certain volume of the secondary chamber 120, in order to ensure the normal operation of the test, a main tube with the same structural parameters as the inert gas transmission tube 510 can be arranged at the position of the sealing cover 400 opposite the main chamber 110. The main tube can be connected to the first igniter 200, and the connection state between the main tube and the first igniter 200 is sealed. Considering the lifting and lowering operation of the sealing cover 400, in actual practice, both the inert gas transmission tube 510 and the main tube can be tubes with telescopic function, such as corrugated pipes, to avoid repeated disassembly and assembly of the main tube and the first igniter 200 during the lifting process of the sealing cover 400. It should also be noted that the main tube is not explicitly shown in the attached drawings.

[0033] In summary, the helium detection device for an igniter provided in this embodiment of the invention includes a body 100 having a main chamber 110 and several secondary chambers 120, a sealing cover 400, an inert gas filling module 500, and a detection gas filling module 600. To achieve non-destructive filling of helium into the second igniter 300, it is necessary to ensure the sealing of the welding area in the second igniter 300 and the sealing of the interface between the inert gas transmission pipe 510 and the second igniter 300. In this application, by moving the sealing cover 400 toward the body 100, the sealing cover 400 can cover the main chamber 110 and several secondary chambers 120. The chamber 120 is simultaneously sealed. The sum of the volumes of several auxiliary chambers 120 equals the volume of the main chamber 110, ensuring that the sum of the initial pressures in each auxiliary chamber 120 equals the initial pressure of the main chamber 110. Then, the main gas filling unit 610 fills the main chamber 110 with detection gas, causing a change in the pressure data within the main chamber 110, thus generating pressure data for the detection gas. Since the first igniter 200 in the main chamber 110 is a qualified product, the detection gas input into the main chamber 110 cannot penetrate into the first igniter 200. In other words, the pressure in the main chamber 110... The detection gas has a defined pressure. The detection gas in the main chamber 110 is evenly distributed and transmitted to each secondary chamber 120 via several secondary gas filling units 620. By judging the gas pressure in the secondary chambers 120, the sealing performance of the welded area of ​​the second igniter 300 and the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300 can be tested. When a leak occurs in the welded area and / or at the interface of the second igniter 300, the gas pressure in the corresponding secondary chamber 120 will change. The secondary pressure gauge 623 is used to monitor the gas pressure data in the secondary chambers 120. The system performs a detection process. When the gas pressure data meets the preset pressure data, inert gas, such as helium, is transferred to the second igniter 300 through the inert gas transfer pipe 510. This ensures that no leakage occurs when the helium is transferred to the second igniter 300. Conversely, when the gas pressure data does not meet the preset pressure data, it can be determined that there is a leak point in the welding area and / or interface of the second igniter 300. Through this setting, leak point detection can be performed on the sealing interface and / or welding area of ​​the second igniter 300 before injecting helium into the second igniter 300, thus avoiding leakage of helium during the filling process.

[0034] Second Embodiment Please see Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, this is an igniter helium detection device in the second embodiment of the present invention. The detection device shown in this embodiment differs from the detection device in the first embodiment above in that the detection device further includes a first sealing cover plate 700 and a plurality of second sealing cover plates 800 connected to the sealing cover 400. Both the first sealing cover plate 700 and the second sealing cover plate 800 have exposed areas. The exposed area of ​​the first sealing cover 700 is positioned opposite to the sealing interface of the first igniter 200, and the exposed area of ​​the second sealing cover 800 is positioned opposite to the sealing interface of the second igniter 300. When the sealing cover 400 is sealed to the body 100, the first sealing cover plate 700 and the second sealing cover plate 800 are respectively placed on the first igniter 200 and the second igniter 300 to form the main interface sub-cavity 111 and the main weld sub-cavity 112 in the main chamber 110, and the secondary interface sub-cavity 121 and the secondary weld sub-cavity 122 in the secondary chamber 120. The main gas filling unit 610 includes a main pipe body A6111, a main pipe body B6112, a main air pump A6121, a main air pump B6122, a main pressure gauge A6131, and a main pressure gauge B6132. The auxiliary gas filling unit 620 includes auxiliary pipe body A6211, auxiliary pipe body B6212, auxiliary gas pump A6221, auxiliary gas pump B6222, auxiliary pressure gauge A6231, and auxiliary pressure gauge B6232.

[0035] Specifically, the main air pump A6121 and the main pressure gauge A6131 are connected to the main interface sub-cavity 111 through the main body A6111, and the main air pump B6122 and the main pressure gauge B6132 are connected to the main weld sub-cavity 112 through the main body B6112. The secondary pipe body A6211 is used to connect the main interface sub-cavity 111 and the secondary interface sub-cavity 121. The secondary air pump A6221 and the secondary pressure gauge A6231 are both located on the secondary pipe body A6211. The secondary pipe body B6212 is used to connect the main weld sub-cavity 112 and the secondary weld sub-cavity 122. The secondary air pump B6222 and the secondary pressure gauge B6232 are both located on the secondary pipe body B6212.

[0036] It should be noted that the sealing of the welded area in the second igniter 300 and the sealing of the interface between the inert gas transmission pipe 510 and the second igniter 300 will affect the leakage of helium filling into the second igniter 300. However, the poor sealing of the welded area in the second igniter 300 is a welding defect in the welding process between the upper cover and the shell of the second igniter 300. In practice, it is necessary to repair the welding defect or rework it. However, the poor sealing of the interface between the inert gas transmission pipe 510 and the second igniter 300 is due to human error during operation.

[0037] In this embodiment, to facilitate accurate determination of helium leakage points during transmission, the arrangement of the first sealing cover 700 and multiple second sealing covers 800, and the main gas filling unit 610 including main body A6111, main body B6112, main gas pump A6121, main gas pump B6122, main pressure gauge A6131 and main pressure gauge B6132; and the auxiliary gas filling unit 620 including auxiliary body A6211, auxiliary body B6212, auxiliary gas pump A6221, auxiliary gas pump B6222, auxiliary pressure gauge A6231 and auxiliary pressure gauge B6232, ensures that after the sealing cover 400 has moved towards the body 100, the first sealing cover 700 will cover the first igniter 200, and the second sealing cover 800 will cover the second igniter 300.

[0038] The main chamber 110 can be divided into a main interface sub-chamber 111 and a main weld sub-chamber 112 using the first sealing cover plate 700. Specifically, the main interface sub-chamber 111 corresponds to the interface of the first igniter 200, and the main weld sub-chamber 112 corresponds to the welding area of ​​the first igniter 200.

[0039] The secondary chamber 120 can be divided into a secondary interface sub-chamber 121 and a secondary weld sub-chamber 122 using the second sealing cover plate 800. Specifically, the secondary interface sub-chamber 121 corresponds to the interface between the inert gas transmission pipe 510 and the second igniter 300, and the secondary weld sub-chamber 122 corresponds to the welding area of ​​the second igniter 300.

[0040] In practical implementation, the main pipe A6111 and the main air pump A6121 can transmit detection gas to the main interface sub-cavity 111, and the pressure data in the main interface sub-cavity 111 can be detected by the main pressure gauge A6131. ​​Subsequently, the detection gas in the main interface sub-cavity 111 is evenly distributed and transmitted to the sub-interface sub-cavities 121 through the auxiliary pipes A6211 and the auxiliary air pump A6221. The pressure data in the sub-interface sub-cavities 121 can be detected by the auxiliary pressure gauges A6231. When the pressure data detected by the auxiliary pressure gauges A6231 meets the preset pressure data, it can be confirmed that the interface between the inert gas transmission pipe 510 and the second igniter 300 is in a qualified sealing state; otherwise, it is unqualified.

[0041] Similarly, the main pipe B6112 and the main air pump B6122 can transmit detection gas to the main weld sub-cavity 112, and the pressure data in the main weld sub-cavity 112 can be detected by the main pressure gauge B6132. Subsequently, the detection gas in the main weld sub-cavity 112 is evenly distributed and transmitted to each secondary weld sub-cavity 122 through each secondary pipe B6212 and the secondary air pump B6222. The pressure data in each secondary weld sub-cavity 122 can be detected by each secondary pressure gauge B6232. When the pressure data detected by each secondary pressure gauge B6232 meets the preset pressure data, it can be confirmed that the weld area in the second igniter 300 is in a qualified sealing state; otherwise, it is unqualified.

[0042] It should be noted that, given that the sum of the volumes of several secondary chambers 120 equals the volume of the main chamber 110, and that the construction parameters of the first igniter 200 and the second igniter 300 are the same, it can be determined that the volume of the main interface sub-cavity 111 equals the sum of the volumes of each secondary interface sub-cavity 121, and the volume of the main weld sub-cavity 112 equals the sum of the volumes of each secondary weld sub-cavity 122.

[0043] It should be noted that the detection device also includes a sealing ring 900 disposed on the sealing cover 400, the first sealing cover plate 700, and the second sealing cover plate 800, and can also arrange a stepped structure in the main chamber 110 and each of the auxiliary chambers 120, such as Figure 7 and Figure 8 As shown, when the first sealing cover plate 700 and the second sealing cover plate 800 are placed on the first igniter 200 and the second igniter 300, the sealing ring 900 will cover the stepped structure, thereby ensuring the sealing performance of the main interface sub-cavity 111, the main weld sub-cavity 112, the secondary interface sub-cavity 121, and the secondary weld sub-cavity 122 through the sealing performance of the sealing ring 900.

[0044] This setup allows for the rapid detection of the sealing performance of the welded area in the second igniter 300, as well as the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300, before helium filling.

[0045] In summary, the igniter helium detection device shown in the second embodiment of the present invention has at least the following beneficial effects compared with the igniter helium detection device in the first embodiment: The detection device also includes a first sealing cover plate 700 and multiple second sealing covers 800, and a main gas filling unit 610 including a main body A6111, a main body B6112, a main gas pump A6121, a main gas pump B6122, a main pressure gauge A6131, and a main pressure gauge B6132; and a secondary gas filling unit 620 including a secondary body A6211, a secondary body B6212, a secondary gas pump A6221, a secondary gas pump B6222, a secondary pressure gauge A6231, and a secondary pressure gauge B6232. This configuration enables rapid detection of the sealing performance of the welded area in the second igniter 300 and the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300 before helium filling.

[0046] Third Embodiment Please see Figure 11 As shown, this is a control method for the igniter helium detection device in the third embodiment of the present invention. The control method is used to control the igniter helium detection device in the first or second embodiment described above. The control method includes: S01, when the sealing cover 400 is sealed to the body 100 and the interface of the inert gas transmission pipe 510 is sealed to the second igniter 300, the main gas filling unit 610 is controlled to input the detection gas toward the main chamber 110.

[0047] It should be noted that the detection gas can be ambient air.

[0048] S02, acquire the input data for the detected gas.

[0049] S03, determine the total pressure data of the main chamber 110 based on the input data in the main chamber 110; S04, control multiple auxiliary gas filling units 620 to evenly extract the detection gas in the main chamber 110 and input it into the auxiliary chamber 120; S05, Obtain the auxiliary pressure data in each chamber 120 according to each auxiliary pressure gauge 623; S06, determine whether the sum of all secondary pressure data equals the total pressure data; S07, when the sum of all secondary pressure data equals the total pressure data, the quality of each second igniter 300 is confirmed to be qualified; S08, inert gas is filled into the qualified second igniter 300 through the inert gas filling module 500.

[0050] It should be noted that, in some preferred embodiments, after determining whether the sum of all secondary pressure data equals the total pressure data, the method further includes: When the sum of all secondary pressure data does not equal the total pressure data; The preset pressure data for each sub-chamber 120 is determined based on the total pressure data and the number of sub-chambers 120; If the pressure data of a certain chamber 120 is not equal to the preset pressure data, then the quality of the corresponding second igniter 300 is confirmed to be unqualified.

[0051] This setup enables the rapid detection of the sealing performance of the welded area in the second igniter 300, as well as the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300, before helium filling. In some other preferred embodiments, after determining whether the sum of all secondary pressure data equals the total pressure data, the method further includes: When the sum of all secondary pressure data does not equal the total pressure data; Determine if there are any identical data points among all the secondary pressure data; If there are identical data points among all the secondary pressure data, and the number of identical data points is a preset number, then the identical data points are determined to be the preset pressure data. If the pressure data of a certain chamber 120 is not equal to the preset pressure data, then the quality of the corresponding second igniter 300 is confirmed to be unqualified.

[0052] This setting reduces the computing power of the detection device, effectively lowering computing costs. For example, if 9 out of 10 secondary pressure data points have the same data, and these 9 data points are a preset quantity, then the same data points can be identified as preset pressure data points. If the remaining secondary pressure data point is different from the 9 identical data points, then the corresponding second igniter 300 can be confirmed as substandard.

[0053] It should be noted that the control method shown in this example can also be applied to the detection device in the second embodiment. Through this detection method, the detection device in the second embodiment can detect the sealing performance of the welding area in the second igniter 300 and the sealing performance of the interface between the inert gas transmission pipe 510 and the second igniter 300.

[0054] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A helium detection device for an igniter, characterized in that, include: The machine body has a main chamber and several auxiliary chambers. The main chamber is used to accommodate a first igniter that meets the quality requirements, and the auxiliary chambers are used to accommodate a second igniter to be processed. The sum of the volume data of the several auxiliary chambers is equal to the volume data of the main chamber. The construction parameters of the first igniter and the construction parameters of the second igniter are the same. A sealing cover, which is used to move up and down toward the machine body to seal the main chamber and the auxiliary chamber; An inert gas filling module includes a plurality of inert gas transmission pipes disposed on the sealing cover, wherein each of the inert gas transmission pipes is respectively positioned opposite each of the sub-chambers, and the inert gas transmission pipes are used to seal and connect with the interface of the second igniter and to transmit inert gas into the second igniter; A detection gas filling module includes a main gas filling unit and several auxiliary gas filling units. The main gas filling unit is connected to the main chamber and is used to input detection gas toward the main chamber. The several auxiliary gas filling units are used to connect the main chamber and the several auxiliary chambers so that the detection gas in the main chamber is evenly distributed through the several auxiliary gas filling units and transmitted to each of the auxiliary chambers respectively. Each of the auxiliary gas filling units includes an auxiliary pressure gauge, which is used to detect the gas pressure in the auxiliary chamber.

2. The igniter helium detection device according to claim 1, characterized in that, The main gas filling unit includes a main pipe, a main gas pump, and a main pressure gauge. The main gas pump and the main pressure gauge are both connected to the main chamber through the main pipe. The main air pump is used to input detection gas into the main chamber through the main air pipe, and the main pressure gauge is used to detect the pressure data inside the main chamber.

3. The igniter helium detection device according to claim 1, characterized in that, The auxiliary gas filling unit also includes an auxiliary pipe and an auxiliary gas pump, wherein the auxiliary pipe is used to connect the auxiliary chamber to the main chamber; The auxiliary air pump and the auxiliary pressure gauge are both located on the auxiliary pipe body. The auxiliary air pump is used to extract the detection gas in the main chamber and output it towards the auxiliary chamber. The auxiliary pressure gauge is used to detect the pressure data in the auxiliary chamber.

4. The igniter helium detection device according to claim 1, characterized in that, The detection device further includes a first sealing cover plate and a plurality of second sealing cover plates connected to the sealing cover body, and an exposed area is formed on both the first sealing cover plate and the second sealing cover plates. Wherein, the exposed area of ​​the first sealing cover is positioned opposite to the sealing interface of the first igniter, and the exposed area of ​​the second sealing cover is positioned opposite to the sealing interface of the second igniter; When the sealing cover is sealed to the body, the first sealing cover plate and the second sealing cover plate are respectively placed on the first igniter and the second igniter to form a main interface sub-cavity and a main weld sub-cavity in the main cavity, and a secondary interface sub-cavity and a secondary weld sub-cavity in the secondary cavity; The main gas filling unit includes main pipe A, main pipe B, main gas pump A, main gas pump B, main pressure gauge A and main pressure gauge B. The auxiliary gas filling unit includes auxiliary pipe A, auxiliary pipe B, auxiliary gas pump A, auxiliary gas pump B, auxiliary pressure gauge A, and auxiliary pressure gauge B.

5. The igniter helium detection device according to claim 4, characterized in that, The main air pump A and the main pressure gauge A are connected to the main interface sub-cavity through the main pipe body A, and the main air pump B and the main pressure gauge B are connected to the main weld sub-cavity through the main pipe body B; The secondary pipe body A is used to connect the main interface sub-cavity and the secondary interface sub-cavity, wherein the secondary air pump A and the secondary pressure gauge A are both installed on the secondary pipe body A; The secondary pipe body B is used to connect the main weld sub-cavity and the secondary weld sub-cavity, wherein the secondary air pump B and the secondary pressure gauge B are both located on the secondary pipe body B.

6. The igniter helium detection device according to claim 5, characterized in that, The detection device also includes sealing rings disposed on the sealing cover, the first sealing cover plate, and the second sealing cover plate.

7. The igniter helium detection device according to claim 1, characterized in that, The multiple auxiliary chambers are arranged circumferentially with the main chamber as the origin.

8. A control method for an igniter helium detection device, characterized in that, The control method is used to control the igniter helium detection device according to any one of claims 1-7, and the control method includes: When the sealing cover is sealed to the body and the inert gas transmission pipe is sealed to the interface of the second igniter, the main gas filling unit is controlled to input detection gas toward the main chamber; Acquire the input data of the detected gas; The total pressure data of the main chamber is determined based on the input data in the main chamber; Multiple auxiliary gas filling units are controlled to evenly extract the detection gas from the main chamber and input it into the auxiliary chambers; Obtain the auxiliary pressure data in each of the auxiliary chambers according to each of the auxiliary pressure gauges; Determine whether the sum of all the secondary pressure data is equal to the total pressure data; When the sum of all the secondary pressure data equals the total pressure data, the quality of each second igniter is confirmed to be qualified. The inert gas filling module fills the qualified second igniter with inert gas.

9. The control method for the igniter helium detection device according to claim 8, characterized in that, After the step of determining whether the sum of all the secondary pressure data is equal to the total pressure data, the method further includes: When the sum of all the secondary pressure data is not equal to the total pressure data; The preset pressure data for each of the sub-chambers is determined based on the total pressure data and the number of sub-chambers; If the pressure data of a certain auxiliary chamber is not equal to the preset pressure data, then the quality of the corresponding second igniter is confirmed to be unqualified.

10. The control method for the igniter helium detection device according to claim 8, characterized in that, After the step of determining whether the sum of all the secondary pressure data is equal to the total pressure data, the method further includes: When the sum of all secondary pressure data is not equal to the total pressure data; Determine if there are any identical data points among all the secondary pressure data; If there are identical data points among all the secondary pressure data, and the number of identical data points is a preset number, then the identical data points are determined to be the preset pressure data. If the pressure data of a certain auxiliary chamber is not equal to the preset pressure data, then the quality of the corresponding second igniter is confirmed to be unqualified.

Images