Anti-electromagnetic interference air tightness detector

Abstract

The invention relates to an anti-electromagnetic interference air tightness detector, which comprises a shell and a circuit system arranged in the shell, and is characterized in that the shell comprises a transmitting plate, a capacitor bank and a lamp bank, and the transmitting plate is provided with a metal coil; the capacitor bank is electrically connected with the transmitting plate; the lamp set is electrically connected with the capacitor set, electric energy stored in the capacitor set supplies power to the lamp set, and when the metal coil receives external electromagnetic interference, the lamp set is turned on. Electromagnetic energy sensed by the metal coil is stored through the capacitor bank, and the capacitor bank stores and stably releases instantaneous current to ensure that the lamp bank can be kept in a light-emitting state for a long time, so that a user has sufficient time to identify the existence of electromagnetic interference and take measures, such as closing a detector or moving the detector away from an interference source, and the detection efficiency is improved. Therefore, the detector can stably work in an interference-free environment, so that measurement errors or detector faults caused by electromagnetic interference are effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of air tightness detection, and in particular to an air tightness detector resistant to electromagnetic interference. Background Art

[0002] An airtightness tester is an instrument used to detect the sealing performance of a tester or device. It is widely used in electronic products, automobiles, aerospace, medical equipment and other fields. By performing airtightness testing on the tester or product, it is possible to effectively determine whether there is a leak under a specific pressure or vacuum environment to ensure its safety and reliability during use. An airtightness tester usually includes core components such as pressure sensors and flow sensors. Based on these components, the instrument can detect pressure changes inside or outside the object being tested to determine the airtightness. However, when the airtightness tester works in a complex electromagnetic environment, it is easily affected by external electromagnetic interference, which in turn affects the accuracy and reliability of the test results.

[0003] Since there are a large number of high-frequency, high-power detectors in modern industrial environments, the electromagnetic waves generated by these detectors will interfere with the normal operation of the airtightness detector, resulting in reduced detection accuracy or even detector failure. The existing technology mainly relies on basic shielding technology to reduce electromagnetic interference, but its disadvantage is that the detector itself cannot promptly identify and remind the user whether it is in an electromagnetic interference environment. Therefore, when electromagnetic interference affects the internal circuit or sensor of the detector, the user cannot know that the detector has been interfered, which can easily lead to misjudgment or wrong detection results, affecting the production process and product quality.

[0004] Therefore, it is necessary to propose an airtightness detector that is resistant to electromagnetic interference, so that users can promptly identify the presence of electromagnetic interference when the detector is in a complex electromagnetic environment, and ensure that the detector can perform accurate detection in an environment with less interference. Summary of the invention

[0005] The purpose of this application is to overcome the deficiencies in the prior art and to propose an electromagnetic interference resistant airtightness detector, which aims to solve the problem that the airtightness detector cannot promptly remind the user when subjected to electromagnetic interference, which may lead to inaccurate test results.

[0006] This application is implemented through the following technical solutions:

[0007] The present application proposes an electromagnetic interference resistant airtightness detector, comprising a housing and a circuit system arranged in the housing, wherein the housing comprises:

[0008] A transmitting plate, provided with a metal coil, wherein the metal coil is used to receive external electromagnetic interference;

[0009] A capacitor group, electrically connected to the transmitting board, the capacitor group is used to absorb the electromagnetic interference signal received by the metal coil and store electrical energy;

[0010] The lamp group is electrically connected to the capacitor group. The electric energy stored in the capacitor group supplies power to the lamp group. When the metal coil receives external electromagnetic interference, the lamp group lights up.

[0011] In one embodiment of the present application, the transmitting board is made of a flexible circuit board, and the metal coil is arranged on the flexible circuit board in a spiral or uniform distribution. The metal coil absorbs external electromagnetic interference signals through electromagnetic induction and converts them into electrical energy and transmits them to the capacitor group.

[0012] In one embodiment of the present application, the transmitting board includes a first transmitting board, the first transmitting board includes a first top board and a first side board, the first top board and the first side board are connected to form an L-shape, the capacitor group includes a first capacitor, the first capacitor is electrically connected to the first transmitting board, the first capacitor is used to absorb the electromagnetic interference signal received by the first transmitting board and store electrical energy, the lamp group includes a first interference lamp, the first interference lamp is electrically connected to the first capacitor, and when the first transmitting board receives external electromagnetic interference, the first interference lamp lights up;

[0013] The transmitting board includes a second transmitting board, the second transmitting board includes a second top plate and a second side plate, the second top plate and the second side plate are connected to form an L-shape, the first top plate is in contact with the end edge of the second top plate, the capacitor group includes a second capacitor, the second capacitor is electrically connected to the second transmitting board, the second capacitor is used to absorb the electromagnetic interference signal received by the second transmitting board and store electrical energy, the lamp group includes a second interference lamp, the second interference lamp is electrically connected to the second capacitor, and when the second transmitting board receives external electromagnetic interference, the second interference lamp lights up.

[0014] In one embodiment of the present application, the transmitting plate includes a transmitting backplate, and the end edges of the transmitting backplate are respectively in contact with the end edges of the first transmitting plate and the second transmitting plate. The capacitor group includes a third capacitor, and the third capacitor is electrically connected to the transmitting backplate. The third capacitor is used to absorb the electromagnetic interference signal received by the transmitting backplate and store electrical energy. The lamp group includes a third interference lamp, and the third interference lamp is electrically connected to the third capacitor. When the transmitting backplate receives external electromagnetic interference, the third interference lamp lights up.

[0015] In one embodiment of the present application, the transmitting plate includes a transmitting base plate, and the end edges of the transmitting base plate are respectively affixed to the end edges of the first transmitting plate, the second transmitting plate, and the transmitting back plate. The capacitor group includes a fourth capacitor, and the fourth capacitor is electrically connected to the transmitting base plate. The fourth capacitor is used to absorb the electromagnetic interference signal received by the transmitting base plate and store electrical energy. The lamp group includes a fourth interference lamp, and the fourth interference lamp is electrically connected to the fourth capacitor. When the transmitting base plate receives external electromagnetic interference, the fourth interference lamp lights up.

[0016] In one embodiment of the present application, when the first interference lamp and the second interference lamp are lit at the same time, and the third interference lamp and the fourth interference lamp are not lit, the external electromagnetic interference comes from the top surface direction of the first top plate and the second top plate;

[0017] When the first interference light, the second interference light and the third interference light are all on, and the fourth interference light is not on at all, the external electromagnetic interference comes from multiple directions around multiple side surfaces and top surfaces of the entire shell at the same time;

[0018] When the first interference light, the second interference light, the third interference light and the fourth interference light are all lit, external electromagnetic interference comes from multiple directions around the entire shell at the same time.

[0019] In one embodiment of the present application, the housing further comprises:

[0020] A plastic isolation structure, wherein the emitting plate and the capacitor group are both arranged inside the plastic isolation structure, and the lamp group is arranged outside the plastic isolation structure;

[0021] A metal isolation structure, wherein the transmitting plate and the capacitor group are both arranged between the metal isolation structure and the plastic isolation structure;

[0022] The plastic fixing shell is arranged in the metal isolation structure. The plastic fixing shell is provided with a receiving hole, and the circuit system is arranged in the receiving hole.

[0023] In one embodiment of the present application, the circuit system includes:

[0024] A control panel, the edge of which is attached to and clamped on the opening in the receiving hole;

[0025] An electronic component assembly is arranged in the transmitting board, the electronic component assembly is electrically connected to the control board, and the electronic component assembly is used to control the operation and signal processing of the airtightness detector;

[0026] A socket board, whose edge is clamped on another opening in the accommodating hole, and the socket board is arranged at one end away from the control board, the socket board is electrically connected to the electronic component assembly, and the socket board is used to be electrically connected to an external detector;

[0027] The control panel receives an external power supply signal through the socket panel, and transmits a control signal to the electronic component assembly through operation to control the operation of the airtightness detector.

[0028] In one embodiment of the present application, shielding stickers are affixed to the vertical connection between the first top plate and the first side plate, and to the vertical connection between the second top plate and the second side plate, and the shielding stickers are located on the side of the emitting plate away from the electronic component assembly.

[0029] In one embodiment of the present application, the shell also includes a handle, which is arranged on the plastic fixed shell, and avoidance grooves are provided at the top of the plastic isolation structure, the transmitting plate and the metal isolation structure. The handle extends out of the plastic isolation structure through the avoidance groove, while avoiding interference with the metal coil of the transmitting plate.

[0030] Compared with the prior art, the beneficial effects of this application are:

[0031] An anti-electromagnetic interference airtightness detector includes a shell and a circuit system arranged in the shell. The shell includes a transmitting board, a capacitor group and a lamp group. The transmitting board is provided with a metal coil. The capacitor group is electrically connected to the transmitting board. The capacitor group is used to absorb the electromagnetic interference signal received by the metal coil and store electrical energy. The lamp group is electrically connected to the capacitor group. The electrical energy stored in the capacitor group supplies power to the lamp group. When the metal coil receives external electromagnetic interference, the lamp group lights up. The metal coil of the transmitting board can generate current through electromagnetic induction and convert electromagnetic interference into electrical energy. The electromagnetic energy induced by the metal coil is stored through the capacitor group. The instantaneous current is stored and released stably through the capacitor group, ensuring that the lamp group can maintain a luminous state for a long time, so that the user has sufficient time to identify the existence of electromagnetic interference and take measures, such as turning off the detector or moving it away from the interference source, thereby effectively avoiding measurement errors or detector failures caused by electromagnetic interference.

[0032] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 An overall stereoscopic diagram of an electromagnetic interference resistant airtightness detector provided in one embodiment of the present application;

[0035] Figure 2 An overall stereoscopic diagram of an electromagnetic interference resistant airtightness detector provided in one embodiment of the present application;

[0036] Figure 3 An exploded perspective view of an electromagnetic interference resistant airtightness detector provided in one embodiment of the present application;

[0037] Figure 4 An exploded perspective view of a first plastic shell, a first launching plate, a second launching plate, and a first metal shell provided in an embodiment of the present application;

[0038] Figure 5 An exploded perspective view of a first launch plate and a second launch plate provided in an embodiment of the present application;

[0039] Figure 6 An exploded perspective view of a second plastic shell, a transmitting back plate and a second metal shell provided in an embodiment of the present application;

[0040] Figure 7 An exploded perspective view of a third plastic shell, a transmitting base plate and a third metal shell provided in an embodiment of the present application;

[0041] Figure 8 An exploded perspective view of a first plastic shell, a first launching plate, a second launching plate, and a first metal shell provided in an embodiment of the present application;

[0042] Fig. 9 An exploded perspective view of a second plastic shell, a transmitting back plate and a second metal shell provided in an embodiment of the present application;

[0043] Fig.10 This is an exploded perspective view of a third plastic shell, a transmitting base plate and a third metal shell provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 10. Anti-electromagnetic interference airtightness detector; 100. Plastic isolation structure; 110. First plastic shell; 120. Second plastic shell; 130. Third plastic shell; 200. Launch board; 210. Metal coil; 220. First launch board; 221. First top board; 222. First side board; 230. Second launch board; 231. Second top board; 232. Second side board; 240. Shielding sticker; 250. Launch back board; 260. Launch bottom board; 310. First interference lamp; 32 0. Second interference lamp; 330. Third interference lamp; 340. Fourth interference lamp; 410. First capacitor; 420. Second capacitor; 430. Third capacitor; 440. Fourth capacitor; 500. Metal isolation structure; 510. First metal shell; 520. Second metal shell; 530. Third metal shell; 600. Plastic fixed shell; 610. Accommodation hole; 620. Handle; 700. Avoidance groove; 810. Control panel; 820. Electronic component assembly; 830. Socket board. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0048] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0049] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0051] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0052] Please refer to Figures 1 to 10 The present application proposes an anti-electromagnetic interference airtightness detector 10, including a shell (not marked in the figure) and a circuit system (not marked in the figure) arranged in the shell, the shell includes a transmitting board 200, a capacitor group (not marked in the figure) and a lamp group (not marked in the figure), the transmitting board 200 is provided with a metal coil 210, the metal coil 210 is used to receive external electromagnetic interference; the capacitor group is electrically connected to the transmitting board 200, the capacitor group is used to absorb the electromagnetic interference signal received by the metal coil 210 and store electrical energy; the lamp group is electrically connected to the capacitor group, the electrical energy stored in the capacitor group is used to power the lamp group, when the metal coil 210 receives external electromagnetic interference, the lamp group lights up.

[0053] Specifically, the transmitting board 200 is provided with a metal coil 210 for receiving external electromagnetic interference signals. This design is different from the traditional shielding layer. The traditional shielding layer is for shielding interference, while the transmitting board 200 of the present invention actively receives interference signals through the metal coil 210. The purpose of this design is to effectively sense electromagnetic interference and use these signals as a basis for detecting the existence of electromagnetic interference. The metal coil 210 of the transmitting board 200 can generate current through electromagnetic induction and convert electromagnetic interference into electrical energy. This process ensures that the detector can continuously receive external interference signals, thereby realizing the perception of interference. The capacitor group is electrically connected to the transmitting board 200, and the lamp group is electrically connected to the capacitor group. The electrical energy stored in the capacitor is used to power the lamp group. The electromagnetic energy sensed by the metal coil 210 is stored by the capacitor group, that is, the external electromagnetic interference signal is sensed by the metal coil 210 of the transmitting board 200 and transmitted to the capacitor group, and the instantaneous current is stored and released stably through the capacitor group, ensuring that the lamp group can remain in the luminous state for a long time, so that the user has sufficient time to identify the existence of electromagnetic interference and take measures, such as turning off the detector or moving it away from the interference source, to ensure that the detector can work stably in an interference-free environment, thereby effectively avoiding measurement errors or detector failures caused by electromagnetic interference.

[0054] It should be understood that since electromagnetic interference signals are usually instantaneous high-frequency signals, if they act directly on the light group, the interference signal will be unstable or too short to be detected, such as flashing or only flashing for a moment. Therefore, this application uses a capacitor group to store instantaneous current and release it stably to ensure that the light group can remain lit for a long time, so that users have enough time to identify the existence of electromagnetic interference and take measures.

[0055] It should be understood that when the existing airtightness detector works in an industrial site with high frequency and high power detectors, it is often interfered by external electromagnetic waves. These electromagnetic waves can directly affect the circuit system of the detector, especially the internal electronic component assembly 820, by radiation or induction, and then interfere with the normal operation of the sensor. In particular, when the airtightness detector is used to detect the precision detector, electromagnetic interference will not only cause inaccurate measurement data, but may even cause the detector to short-circuit or malfunction. Therefore, the traditional shielding technology can only reduce the impact of electromagnetic waves to a limited extent, and cannot fundamentally solve the problem of the detector's perception and response to external electromagnetic interference. In the present application, by setting the metal coil 210 on the transmitting board 200, it is possible to actively receive and perceive the external electromagnetic interference signal, the capacitor group can store and slowly release the instantaneous electromagnetic energy, the lamp group emits light according to the received electromagnetic interference signal, and the capacitor group ensures that the lamp group can continue to emit light. In this way, even if the interference signal exists instantaneously, the user can still detect it in time through the light warning, so that the user can find electromagnetic interference in time. This feedback mechanism not only enhances the user's ability to perceive interference, but also provides a basis for the detector to adjust in an interference environment. In this way, the anti-interference ability of the airtightness detector in a complex electromagnetic environment can be greatly improved, ensuring the reliability and accuracy of the test results.

[0056] It is worth noting that in the anti-electromagnetic interference airtightness tester 10, the lamp group and the capacitor group are independent of the circuit system and are not electrically connected to the internal circuit system of the airtightness tester. Therefore, they do not affect the operation of other circuits inside the tester, and only respond when electromagnetic interference exists, reducing the possibility of misjudgment.

[0057] Please refer to Figure 3 In one embodiment, the transmitting board 200 is made of a flexible circuit board, and the metal coil 210 is arranged on the flexible circuit board in a spiral or uniform distribution. The metal coil 210 absorbs external electromagnetic interference signals through electromagnetic induction and converts them into electrical energy and transmits them to the capacitor group.

[0058] Specifically, the transmitting board 200 is made of a flexible circuit board. The flexible circuit board has extremely high flexibility and plasticity, and can adapt to the complex structural design and installation requirements in the airtightness detector. When the internal space of the detector is small and there are many curved surfaces, the flexible circuit board can be folded, bent or tightly fitted to the internal surface of the shell as needed to ensure that the metal coil 210 can cover the interfered area of ​​the detector to the maximum extent. The metal coil 210 is arranged on the flexible circuit board in a spiral and uniformly distributed manner. The spiral arrangement can effectively improve the electromagnetic induction efficiency, so that the metal coil 210 can absorb electromagnetic interference signals from different directions to the maximum extent. The uniform distribution ensures that the electromagnetic induction capacity on the entire circuit board is balanced, and the interference signal will not be unable to be fully captured due to insufficient local induction.

[0059] The metal coil 210 converts external electromagnetic interference signals into electrical energy through the principle of electromagnetic induction, and transmits it to the capacitor group. The advantage of electromagnetic induction is that it can sense the external electromagnetic field without physical contact, ensuring that the detector can continue to work effectively in an interference environment. By converting external electromagnetic interference into electrical energy, it not only avoids the direct impact of interference on the internal circuit system of the detector, but also provides a stable source of energy for the capacitor group. In this way, electromagnetic interference is converted into usable energy resources, realizing the transition from "interference" to "utilization". The capacitor group provides stable electrical energy to the lamp group in a slow release manner, ensuring that the lamp group can continue to emit light. In this way, even if the interference signal exists instantaneously, the user can still detect it in time through the light warning,

[0060] Please refer to Figure 4 and Figure 5 In one embodiment, the launch board 200 includes a first launch board 220, the first launch board 220 includes a first top plate 221 and a first side plate 222, the first top plate 221 and the first side plate 222 are connected to form an L-shape, the capacitor group includes a first capacitor 410, the first capacitor 410 is electrically connected to the first launch board 220, the first capacitor 410 is used to absorb the electromagnetic interference signal received by the first launch board 220 and store electrical energy, the lamp group includes a first interference lamp 310, the first interference lamp 310 is electrically connected to the first capacitor 410, when the first launch board 220 receives external electromagnetic interference, the first interference lamp 310 lights up;

[0061] The launching board 200 includes a second launching board 230, which includes a second top plate 231 and a second side plate 232. The second top plate 231 and the second side plate 232 are connected to form an L-shape, and the first top plate 221 is fitted with the end edge of the second top plate 231. The capacitor group includes a second capacitor 420, which is electrically connected to the second launching board 230. The second capacitor 420 is used to absorb the electromagnetic interference signal received by the second launching board 230 and store electrical energy. The lamp group includes a second interference lamp 320, which is electrically connected to the second capacitor 420. When the second launching board 230 receives external electromagnetic interference, the second interference lamp 320 lights up.

[0062] Specifically, the first launch plate 220 is connected by the first top plate 221 and the first side plate 222 to form an L shape, and the second launch plate 230 is connected by the second top plate 231 and the second side plate 232 to form an L shape, and the top plate end edges of the two launch plates 200 are fitted. It is ensured that the detector can sense external electromagnetic interference from multiple directions, especially electromagnetic interference signals in the vertical and horizontal directions. The layout of the launch plate 200 with an L-shaped structure helps to sense electromagnetic signals in a larger range, while ensuring that the structure inside the detector is compact. The first capacitor 410 is electrically connected to the first launch plate 220, the first interference lamp 310 is electrically connected to the first capacitor 410, and the interference signal of the first launch plate 220 is transmitted to the first interference lamp 310 through the first capacitor 410 to light it up; similarly, the second capacitor 420 is electrically connected to the second launch plate 230, the second interference lamp 320 is electrically connected to the second capacitor 420, and the second launch plate 230 lights the second interference lamp 320 through the second capacitor 420. The design of the first interference light 310 and the second interference light 320 can indicate the source direction of the electromagnetic interference. For example, when the first interference light 310 is on, it means that the electromagnetic interference comes from the direction of the first launch plate 220 (when observing the airtightness detector 10 against electromagnetic interference, the upper left side is the source of the electromagnetic interference); when the second interference light 320 is on, it means that the electromagnetic interference comes from the direction of the second launch plate 230 (when observing the airtightness detector 10 against electromagnetic interference, the upper right side is the source of the electromagnetic interference). This indication system helps users quickly determine the source of interference in a complex electromagnetic environment and take corresponding measures (such as moving the detector or adjusting the position of the detector) to ensure the accuracy of the test results.

[0063] Please refer to Figure 6 and Fig. 9In one embodiment, the transmitting plate 200 includes a transmitting back plate 250, and the end edges of the transmitting back plate 250 are respectively affixed to the end edges of the first transmitting plate 220 and the second transmitting plate 230. The capacitor group includes a third capacitor 430, and the third capacitor 430 is electrically connected to the transmitting back plate 250. The third capacitor 430 is used to absorb the electromagnetic interference signal received by the transmitting back plate 250 and store electrical energy. The lamp group includes a third interference lamp 330, and the third interference lamp 330 is electrically connected to the third capacitor 430. When the transmitting back plate 250 receives external electromagnetic interference, the third interference lamp 330 lights up.

[0064] Specifically, the third capacitor 430 is electrically connected to the transmitting backplane 250, the third interference lamp 330 is electrically connected to the third capacitor 430, and the transmitting backplane 250 lights up the third interference lamp 330 through the third capacitor 430. Through the design of the third interference lamp 330, the electromagnetic interference signal in the direction of the transmitting backplane 250 can be indicated. For example, when the third interference lamp 330 is on, it means that the electromagnetic interference comes from the direction of the transmitting backplane 250 (when observing the airtightness detector 10 against electromagnetic interference, the back of the detector is the source of electromagnetic interference). This indication system helps users quickly determine the source of interference in a complex electromagnetic environment and take corresponding measures (such as moving the detector or adjusting the position of the detector) to ensure the accuracy of the test results.

[0065] Please refer to Figure 7 and Fig.10 In one embodiment, the transmitting plate 200 includes a transmitting base plate 260, and the end edges of the transmitting base plate 260 are respectively affixed to the end edges of the first transmitting plate 220, the second transmitting plate 230, and the transmitting back plate 250. The capacitor group includes a fourth capacitor 440, and the fourth capacitor 440 is electrically connected to the transmitting base plate 260. The fourth capacitor 440 is used to absorb the electromagnetic interference signal received by the transmitting base plate 260 and store electrical energy. The lamp group includes a fourth interference lamp 340, and the fourth interference lamp 340 is electrically connected to the fourth capacitor 440. When the transmitting base plate 260 receives external electromagnetic interference, the fourth interference lamp 340 lights up.

[0066] Specifically, the fourth capacitor 440 is electrically connected to the transmitting base plate 260, the fourth interference lamp 340 is electrically connected to the fourth capacitor 440, and the transmitting base plate 260 lights the fourth interference lamp 340 through the fourth capacitor 440. Through the design of the fourth interference lamp 340, the electromagnetic interference signal in the direction of the transmitting base plate 260 can be indicated. For example, when the fourth interference lamp 340 is on, it means that the electromagnetic interference comes from the direction of the transmitting base plate 260 (when observing the airtightness detector 10 against electromagnetic interference, the bottom of the detector is the source of electromagnetic interference, and this situation may occur when the detector is placed in the overhead position). This indication system helps users quickly determine the source of interference in a complex electromagnetic environment and take corresponding measures (such as moving the detector or adjusting the position of the detector) to ensure the accuracy of the test results.

[0067] It should be understood that the first emitting plate 220 , the second emitting plate 230 , the emitting back plate 250 , and the emitting bottom plate 260 are all provided with metal coils 210 and are independent of each other.

[0068] Please refer to Figure 1 In one embodiment, when the first interference lamp 310 and the second interference lamp 320 are lit at the same time, and the third interference lamp 330 and the fourth interference lamp 340 are not lit, the external electromagnetic interference comes from the top surface direction of the first top plate 221 and the second top plate 231;

[0069] When the first interference lamp 310, the second interference lamp 320 and the third interference lamp 330 are all on, and the fourth interference lamp 340 is not on, the external electromagnetic interference comes from multiple directions around the multiple side surfaces and top surface of the entire shell at the same time;

[0070] When the first interference lamp 310 , the second interference lamp 320 , the third interference lamp 330 and the fourth interference lamp 340 are all lit, external electromagnetic interference comes from multiple directions around the entire housing at the same time.

[0071] Specifically, when the first interference light 310 and the second interference light 320 are on at the same time, and the third interference light 330 and the fourth interference light 340 are not on: when only the first interference light 310 and the second interference light 320 are on, it means that the electromagnetic interference comes from the top surface direction of the detector, that is, the first top plate 221 and the second top plate 231 have received the electromagnetic interference signal. This feedback mechanism indicates that the detector is suffering from electromagnetic interference from above the detector, and the user can judge that the interference source is in the area above the detector. Top surface electromagnetic interference is common in industrial environments, especially when there are other high-frequency devices or wireless transmission devices above the equipment, the equipment is more susceptible to interference.

[0072] When the first interference light 310, the second interference light 320 and the third interference light 330 are all on, and the fourth interference light 340 is not on: In this case, the interference signal comes from multiple sides and top directions of the detector at the same time, indicating that the electromagnetic interference not only comes from above the detector, but also surrounds the detector from the side. At this time, the user can quickly determine the multiple directions of the interference source and take further measures (such as moving or shielding the detector) to reduce the interference effect.

[0073] The first interference light 310, the second interference light 320, the third interference light 330 and the fourth interference light 340 are all on at the same time: when all are on, it means that the electromagnetic interference comes from all directions of the detector at the same time, including the top, side and bottom. At this time, the detector is surrounded by strong electromagnetic interference in all directions, and the user must take immediate measures to prevent the detector from misdetection or failure due to electromagnetic interference.

[0074] It should be understood that the first jammer lamp 310 , the second jammer lamp 320 , the third jammer lamp 330 , and the fourth jammer lamp 340 are all LED lamps.

[0075] Please refer to Figure 3 , Figure 4 , Figures 6 to 10 In one embodiment, the shell further includes a plastic isolation structure 100, a metal isolation structure 500 and a plastic fixed shell 600; the transmitting board 200 and the capacitor group are both arranged inside the plastic isolation structure 100, and the lamp group is arranged outside the plastic isolation structure 100; the transmitting board 200 and the capacitor group are both arranged between the metal isolation structure 500 and the plastic isolation structure 100; the plastic fixed shell 600 is arranged inside the metal isolation structure 500, and the plastic fixed shell 600 is provided with a receiving hole 610, and the circuit system is arranged in the receiving hole 610.

[0076] Specifically, the plastic isolation structure 100 is used as the outer shell of the device, and its main function is to physically isolate the components such as the launch board 200 and the capacitor group from the light group. The plastic isolation structure 100 includes a first plastic shell 110, a second plastic shell 120, and a third plastic shell 130. The first plastic shell 110 is bonded to the first launch board 220 and the second launch board 230, the second plastic shell 120 is bonded to the launch back plate 250, and the third plastic shell 130 is bonded to the launch bottom plate 260. The launch board 200 and the capacitor group are arranged inside the plastic isolation structure 100, and the light group is located outside it, so that the customer can observe whether the light group is on. Through this physical isolation, it is ensured that sensitive components such as the launch board 200 and the capacitor group are not directly exposed to the external environment, avoiding the influence of environmental factors (such as dust, moisture, etc.) on the device. In addition, the plastic isolation structure 100 also plays a role in isolating electromagnetic signals, which helps to reduce signal interference between internal components and ensure the independent operation of each module of the device.

[0077] The metal isolation structure 500 is located between the launch board 200 and the plastic isolation structure 100, forming an effective electromagnetic shielding layer. The main function of the metal isolation structure 500 is to shield electromagnetic interference signals from the outside, prevent interference signals from directly entering the inside of the device, and affect the normal operation of the launch board 200 and the capacitor group. The metal isolation structure 500 includes a first metal shell 510, a second metal shell 520, and a third metal shell 530. The first metal shell 510 is bonded to the first launch board 220 and the second launch board 230, the second metal shell 520 is bonded to the launch back plate 250, and the third metal shell 530 is bonded to the launch bottom plate 260.

[0078] By setting up the metal isolation structure 500, the detector can effectively reduce the interference of external electromagnetic signals, and at the same time prevent the electromagnetic signals inside the detector from leaking out. This two-way shielding effect not only improves the device's ability to resist electromagnetic interference, but also ensures the working stability of the device. The plastic fixed shell 600 is arranged inside the metal isolation structure 500, and its main function is to provide physical support and protection for the circuit system inside the device. The plastic fixed shell 600 is provided with a receiving hole 610 for accommodating the circuit system.

[0079] It should be understood that plastics can resist electromagnetic interference. Plastic products can block certain electromagnetic wave propagation through their electromagnetic isolation and shielding properties, protect electronic equipment from electromagnetic interference, and improve the performance and reliability of the detector. In addition, certain types of plastics, such as conductive plastics, have high electrical conductivity and a certain absorption and loss capacity for electromagnetic waves, which can reduce the radiation effect of electromagnetic fields and are an important choice for electromagnetic shielding materials. Therefore, an anti-interference module is only installed on the inner surface of the plastic shell or the surface without metal shielding, such as the inner surface of the plastic isolation structure 100.

[0080] Please refer to Figures 1 to 3 In one embodiment, the circuit system includes a control board 810, an electronic component assembly 820 and a socket board 830, the edge of the control board 810 is attached to and clamped on the hole in the accommodating hole 610; the electronic component assembly 820 is arranged in the transmitting board 200, the electronic component assembly 820 is electrically connected to the control board 810, and the electronic component assembly 820 is used to control the operation and signal processing of the airtightness detector; the edge of the socket board 830 is clamped on another hole in the accommodating hole 610, and the socket board 830 is arranged at one end away from the control board 810, the socket board 830 is electrically connected to the electronic component assembly 820, and the socket board 830 is used to be electrically connected to an external detector; the control board 810 receives an external power signal through the socket board 830, and transmits the control signal to the electronic component assembly 820 through operation to control the operation of the airtightness detector.

[0081] Specifically, the main function of the control panel 810 is to control the overall operation of the airtightness detector, and the user controls the detector through the control panel 810. The edge of the control panel 810 is attached and clamped on the accommodating hole 610 of the plastic fixed shell 600 to ensure its stable installation. The control panel 810 is electrically connected to the external detection equipment through the socket board 830 to receive the external power signal and transmit the control signal. The electronic component assembly 820 is arranged in the launch board 200 and is electrically connected to the control panel 810 to receive the control signal transmitted by the control panel 810 and control the working state of the airtightness detector according to the user's operating instructions. The electronic component assembly 820 is also responsible for processing the signal during the airtightness detection process, such as collecting airtightness data through sensors, processing electromagnetic interference signals, and analyzing and displaying the detection results. Since the electronic component assembly 820 is located in the launch board 200, it can be well combined with the electromagnetic induction function of the launch board 200 to ensure that the device can operate normally in a complex electromagnetic environment and avoid being affected by interference signals. In this way, through the control panel 810, the user can conveniently control various functions of the airtightness tester, realize the startup of the device, operation mode selection and other function adjustments.

[0082] Please refer to Figure 4 and Figure 5 In one embodiment, a shielding sticker 240 is affixed to the vertical connection between the first top plate 221 and the first side plate 222 , and to the vertical connection between the second top plate 231 and the second side plate 232 , and the shielding sticker 240 is located on the side of the transmitting plate 200 away from the electronic component assembly 820 .

[0083] Specifically, the vertical connection between the first top plate 221 and the first side plate 222, and the vertical connection between the second top plate 231 and the second side plate 232 often become weak points where electromagnetic interference can easily pass through. This is because at the corners of the L-shaped structure, there may be gaps or gaps in the electromagnetic shielding layer, making it easier for electromagnetic waves to enter the inside of the device through these locations, affecting the normal operation of the electronic component assembly 820. Therefore, in order to solve the electromagnetic interference problem at the vertical connection, a shielding sticker 240 is affixed to the vertical connection between the first top plate 221 and the first side plate 222, and the vertical connection between the second top plate 231 and the second side plate 232, and the shielding sticker 240 is located on the side of the transmitting plate 200 away from the electronic component assembly 820. The shielding sticker 240 uses a conductive material, such as a metal plate or tin foil, which can effectively block the passage of electromagnetic waves and fill the shielding weak points at the L-shaped corners. By attaching shielding stickers 240 at these connections, the continuity of the electromagnetic shielding layer of the entire transmitting board 200 structure is ensured, making it difficult for external electromagnetic interference signals to penetrate these locations, thereby improving the overall anti-interference performance of the device.

[0084] Please refer to Figure 1 and Figure 3 In one embodiment, the shell further includes a handle 620, which is disposed on the plastic fixed shell 600, and avoidance grooves 700 are provided at the tops of the plastic isolation structure 100, the launch board 200, and the metal isolation structure 500. The handle 620 extends out of the plastic isolation structure 100 through the avoidance groove 700, while avoiding interference with the metal coil 210 of the launch board 200.

[0085] Specifically, the design of the handle 620 is mainly used to improve the portability and ease of operation of the device. The handle 620 is arranged on the top of the plastic fixed shell 600. In order to prevent the handle 620 from generating electromagnetic interference to the metal coil 210 in the device launch board 200, such as the handle 620 made of metal, the top of the plastic isolation structure 100, the launch board 200 and the metal isolation structure 500 are all provided with avoidance grooves 700, so that the handle 620 can extend out of the device through these avoidance grooves 700, but will not affect the electromagnetic induction components inside the launch board 200. The purpose of this design is to reduce the contact and interference between the handle 620 and the metal coil 210 in the launch board 200, and ensure that the device maintains the accuracy and stability of electromagnetic induction during movement.

[0086] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-electromagnetic interference airtightness detector, comprising a housing and a circuit system arranged in the housing, characterized in that: The housing comprises: A transmitting plate, provided with a metal coil, wherein the metal coil is used to receive external electromagnetic interference; A capacitor group, electrically connected to the transmitting board, the capacitor group is used to absorb the electromagnetic interference signal received by the metal coil and store electrical energy; The lamp group is electrically connected to the capacitor group. The electric energy stored in the capacitor group supplies power to the lamp group. When the metal coil receives external electromagnetic interference, the lamp group lights up.

2. The electromagnetic interference resistant airtightness detector according to claim 1, characterized in that: The transmitting board is made of a flexible circuit board, and the metal coils are arranged on the flexible circuit board in a spiral or uniform distribution. The metal coils absorb external electromagnetic interference signals through electromagnetic induction and convert them into electrical energy to be transmitted to the capacitor group.

3. The electromagnetic interference resistant airtightness detector according to claim 1 or 2, characterized in that: The transmitting board includes a first transmitting board, the first transmitting board includes a first top board and a first side board, the first top board and the first side board are connected to form an L-shape, the capacitor group includes a first capacitor, the first capacitor is electrically connected to the first transmitting board, the first capacitor is used to absorb the electromagnetic interference signal received by the first transmitting board and store electric energy, the lamp group includes a first interference lamp, the first interference lamp is electrically connected to the first capacitor, and when the first transmitting board receives external electromagnetic interference, the first interference lamp lights up; The transmitting board includes a second transmitting board, the second transmitting board includes a second top plate and a second side plate, the second top plate and the second side plate are connected to form an L-shape, the first top plate is in contact with the end edge of the second top plate, the capacitor group includes a second capacitor, the second capacitor is electrically connected to the second transmitting board, the second capacitor is used to absorb the electromagnetic interference signal received by the second transmitting board and store electrical energy, the lamp group includes a second interference lamp, the second interference lamp is electrically connected to the second capacitor, and when the second transmitting board receives external electromagnetic interference, the second interference lamp lights up.

4. The electromagnetic interference resistant airtightness detector according to claim 3, characterized in that: The transmitting board includes a transmitting backboard, and the end edges of the transmitting backboard are respectively in contact with the end edges of the first transmitting board and the second transmitting board. The capacitor group includes a third capacitor, and the third capacitor is electrically connected to the transmitting backboard. The third capacitor is used to absorb the electromagnetic interference signal received by the transmitting backboard and store electrical energy. The lamp group includes a third interference lamp, and the third interference lamp is electrically connected to the third capacitor. When the transmitting backboard receives external electromagnetic interference, the third interference lamp lights up.

5. The electromagnetic interference resistant airtightness detector according to claim 4, characterized in that: The transmitting plate includes a transmitting base plate, and the end edges of the transmitting base plate are respectively in contact with the end edges of the first transmitting plate, the second transmitting plate, and the transmitting back plate. The capacitor group includes a fourth capacitor, and the fourth capacitor is electrically connected to the transmitting base plate. The fourth capacitor is used to absorb the electromagnetic interference signal received by the transmitting base plate and store electrical energy. The lamp group includes a fourth interference lamp, and the fourth interference lamp is electrically connected to the fourth capacitor. When the transmitting base plate receives external electromagnetic interference, the fourth interference lamp lights up.

6. The electromagnetic interference resistant airtightness detector according to claim 5, characterized in that: When the first interference lamp and the second interference lamp are on at the same time, and the third interference lamp and the fourth interference lamp are off, the external electromagnetic interference comes from the top surface direction of the first top plate and the second top plate; When the first interference light, the second interference light and the third interference light are all on, and the fourth interference light is not on at all, the external electromagnetic interference comes from multiple directions around multiple side surfaces and top surfaces of the entire shell at the same time; When the first interference light, the second interference light, the third interference light and the fourth interference light are all lit, external electromagnetic interference comes from multiple directions around the entire shell at the same time.

7. The electromagnetic interference resistant airtightness detector according to claim 5, characterized in that: The housing further comprises: A plastic isolation structure, wherein the emitting plate and the capacitor group are both arranged inside the plastic isolation structure, and the lamp group is arranged outside the plastic isolation structure; A metal isolation structure, wherein the transmitting plate and the capacitor group are both arranged between the metal isolation structure and the plastic isolation structure; The plastic fixing shell is arranged in the metal isolation structure. The plastic fixing shell is provided with a receiving hole, and the circuit system is arranged in the receiving hole.

8. The electromagnetic interference resistant airtightness detector according to claim 7, characterized in that: The circuit system comprises: A control panel, the edge of which is attached to and clamped on the opening in the receiving hole; An electronic component assembly is arranged in the transmitting board, the electronic component assembly is electrically connected to the control board, and the electronic component assembly is used to control the operation and signal processing of the airtightness detector; A socket board, whose edge is clamped on another opening in the accommodating hole, and the socket board is arranged at one end away from the control board, the socket board is electrically connected to the electronic component assembly, and the socket board is used to be electrically connected to an external detector; The control panel receives an external power supply signal through the socket panel, and transmits a control signal to the electronic component assembly through operation to control the operation of the airtightness detector.

9. The electromagnetic interference resistant airtightness detector according to claim 8, characterized in that: A shielding sticker is attached to the vertical connection between the first top plate and the first side plate, and to the vertical connection between the second top plate and the second side plate, and the shielding sticker is located on a side of the emitting plate away from the electronic component assembly.

10. The electromagnetic interference resistant airtightness detector according to claim 7, characterized in that: The shell also includes a handle, which is arranged on the plastic fixed shell, and avoidance grooves are opened at the top of the plastic isolation structure, the launch plate and the metal isolation structure. The handle extends out of the plastic isolation structure through the avoidance groove, while avoiding interference with the metal coil of the launch plate.

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