Reed pipe filling and sealing module and filling and sealing assembly method

Abstract

The invention relates to a reed pipe potting module and a potting assembly method.The potting module comprises a reed pipe, an inner bag, a module pipe, a signal pipe and a self-locking nut, the reed pipe is arranged in an inner cavity of the inner bag, the inner bag is coaxially arranged in the module pipe and sealed through potting glue, the module pipe and the signal pipe are coaxially arranged and connected through threads, and the self-locking nut is arranged in the inner cavity of the inner bag; the signal pipe is coaxially arranged in the sensor inner pipe; the module pipe is rotated to drive the reed pipe to move in the axial direction so as to achieve position adjustment of the reed pipe, and the module pipe and the signal pipe are locked through a self-locking nut. According to the invention, the reed pipe is coaxially wrapped in the inner bag, and the coaxial assembly structure of the module pipe and the signal pipe is combined with the coaxial positioning of the signal pipe in the sensor inner pipe, so that the radial position deviation of the reed pipe after encapsulation is avoided. Meanwhile, continuous adjustment of the axial position of the reed pipe is achieved by rotating the module pipe. In addition, the reed switch is integrally wrapped in the inner bag, so that the risk that the glass tube is crushed in the filling and sealing process is reduced.

Description

Technical Field

[0001] This invention belongs to the field of reed switch encapsulation technology, specifically relating to a reed switch potting module and potting assembly method. Background Technology

[0002] A reed switch is a commonly used magnetically sensitive electronic switching element, widely used in sensors, relays, and other electronic devices. In practical applications, to prevent external factors such as dust, moisture, and corrosive media from affecting the internal metal contacts and glass tube of the reed switch, and to prevent damage to the internal structure due to vibration and impact during use, the reed switch is typically potted and protected with materials such as epoxy resin and silicone to ensure its stable performance. Therefore, the potting structure and process of a reed switch are one of the key factors in ensuring its stable performance and service life.

[0003] Existing reed switch potting modules have the following problems during use: First, precise positioning of the reed switch during potting is difficult after wiring, leading to positional deviations and inconsistent product conditions. This affects the accuracy of its integration with other devices, thus impacting the overall equipment performance. Second, the position of the potted module is relatively fixed or has too little adjustment range, making it difficult to flexibly adjust during assembly. This results in poor versatility and increases product development cycle and production costs. Third, the potting material is prone to significant deformation in high and low temperature environments after curing, posing a risk of puncturing and crushing the glass tube of the reed switch. Therefore, it is necessary to improve the reed switch potting module. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides a reed switch potting module and a potting assembly method. The technical problem to be solved by this invention is achieved through the following technical solution: This invention provides a reed switch potting module, comprising: a reed switch, an inner bladder, a module tube, a signal tube, and a self-locking nut. The reed switch is disposed within the inner cavity of the inner bladder, the inner bladder is coaxially disposed within the module tube and sealed with potting compound, the module tube and the signal tube are coaxially disposed and threaded together, and the signal tube is coaxially disposed within the inner tube of a sensor. Rotating the module tube causes the reed switch to move axially to adjust its position, and the module tube and the signal tube are locked together by the self-locking nut.

[0005] In one embodiment of the present invention, the bottom of the inner cavity of the inner capsule is provided with a pin hole, through which the reed pin of the reed switch passes and is connected to a cable.

[0006] In one embodiment of the present invention, the outer contour of the inner bladder is a circular contour, and a plurality of grooves are provided at intervals along the circumferential direction; one of the grooves is a cable slot for fixing the cable, and all the other grooves are glue channels for guiding the flow of potting glue during potting.

[0007] In one embodiment of the present invention, one end of the module tube is a smooth rod, and the other end is provided with an external thread. The inner bladder is coaxially disposed in the inner cavity of the smooth rod end of the module tube. The smooth rod end of the module tube is located inside the signal tube, and the threaded end of the module tube is threadedly connected to the signal tube.

[0008] In one embodiment of the present invention, a flat end is provided on the module tube near the external thread.

[0009] In one embodiment of the present invention, a plurality of vent holes are provided on the bottom side wall of the inner cavity of the module tube.

[0010] In one embodiment of the present invention, one end of the signal tube is provided with a module adjustment thread for connecting the module tube.

[0011] In one embodiment of the present invention, the end of the signal tube away from the module adjustment thread is provided with a fixing thread for connecting to the sensor tray, and a flat head section is provided near the fixing thread; a float slide is provided in the middle of the signal tube, and the sensor float assembly is slidably connected to the float slide; a guide section is provided near the module adjustment thread, and the guide section is fitted with the inner diameter of the sensor inner tube; a fixing groove is provided on the guide section, and the signal tube is fitted with the sensor positioning pad through the fixing groove and fixed inside the sensor inner tube.

[0012] In one embodiment of the present invention, the reed switch is coaxially fitted with the inner cavity of the inner bladder, the inner bladder is coaxially fitted with the inner cavity of the module tube, and the signal tube is coaxially fitted with the sensor inner tube through the guide section.

[0013] The present invention also provides a reed switch potting assembly method for assembling the above-mentioned reed switch potting module, the method comprising: Step 1: After applying quick-drying adhesive to the reed switch, insert it into the inner cavity of the inner bladder; Step 2: Solder one end of the cable to the spring pin of the reed switch, and insert the other end into the cable slot of the inner bladder; Step 3: Place the entire inner bladder into the module tube, so that the reed pin of the reed switch contacts the bottom of the inner cavity of the module tube; Step 4: Pour potting compound into the inner cavity of the module tube until the potting compound overflows from the multiple vent holes on the bottom side wall of the inner cavity of the module tube. Then, temporarily seal the vent holes with tape. After the potting compound has cured, remove the tape to complete the potting of the module tube. Step 5: Thread the potted module tube to the signal tube, rotate the module tube to the preset position, and then use a self-locking nut to lock the module tube and the signal tube together; Step 6: Insert the sensor float assembly onto the float slide of the signal tube, and tighten the sensor tray through the fixing thread of the signal tube. Guide the signal tube through the guide section and slide it into the inner tube of the sensor. Finally, fix the signal tube with the sensor positioning gasket to complete the potting and assembly of the reed switch. Compared with the prior art, the beneficial effects of the present invention are as follows: The reed switch potting module of this invention avoids radial position deviation of the reed switch after potting by coaxially encapsulating the reed switch in an inner bladder and using a coaxial assembly structure between the module tube and the signal tube, combined with the coaxial positioning of the signal tube within the sensor's inner tube. This ensures that the reed switch remains at its central axis. Furthermore, the threaded connection between the module tube and the signal tube allows for continuous adjustment of the reed switch's axial position by rotating the module tube, and the adjustment amount can be flexibly set according to requirements, significantly improving the product's assembly versatility and adaptability. Additionally, because the reed switch is entirely encapsulated in the inner bladder, the risk of the glass tube of the reed switch being crushed during the potting process is reduced.

[0014] The reed switch potting method of this invention physically isolates the reed switch from the potting compound through an inner bladder, effectively preventing the pressure on the reed switch caused by the curing deformation of the potting compound, thus fundamentally reducing the risk of the glass tube being crushed during the potting process. During the potting process, excess adhesive can overflow through the vent hole and expel air bubbles to ensure uniform filling of the adhesive, significantly improving product reliability and service life.

[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a structural cross-sectional view of a reed switch potting module provided in an embodiment of the present invention; Figure 2 This is a partially enlarged view of the reed switch potting module provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal capsule structure provided in an embodiment of the present invention; Figure 4 This is a structural cross-sectional view of the inner capsule provided in an embodiment of the present invention; Figure 5 This is a structural cross-sectional view of the module tube provided in an embodiment of the present invention; Figure 6 This is a cross-sectional view of the signal tube provided in an embodiment of the present invention; Figure 7 This is a flowchart of a reed switch filling and packing method provided in an embodiment of the present invention.

[0017] Reference numerals: 1-Reed switch; 2-Inner bladder; 21-Cable slot; 22-Glue groove; 23-Pin hole; 3-Module tube; 31-Spot rod; 32-External thread; 33-Flat head; 34-Ventilation hole; 4-Signal tube; 41-Module adjustment thread; 42-Guide section; 43-Fixing groove; 44-Float slide rod; 45-Flat head section; 46-Fixing thread; 5-Sensor inner tube; 6-Self-locking nut; 7-Sensor tray; 8-Sensor positioning pad; 9-Sensor float assembly. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a reed switch potting module and potting assembly method proposed according to the present invention.

[0019] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and concrete understanding can be gained of the technical means and effects adopted by the present invention to achieve its intended purpose. However, the accompanying drawings are for reference and illustration only and are not intended to limit the technical solutions of the present invention.

[0020] Example 1 Existing reed switch potting modules suffer from problems such as inaccurate radial positioning of the reed switch, poor versatility, low potting quality, limited axial adjustment, and potting material deformation threatening product safety. Therefore, this invention provides a reed switch potting module, such as... Figure 1 and Figure 2 As shown, Figure 1 This is a structural cross-sectional view of a reed switch potting module provided in an embodiment of the present invention; Figure 2 This is a partially enlarged view of the reed switch potting module provided in an embodiment of the present invention.

[0021] In this embodiment, the reed switch potting module includes: a reed switch 1, an inner bladder 2, a module tube 3, a signal tube 4, and a self-locking nut 6. The reed switch 1 is disposed in the inner cavity of the inner bladder 2. The inner bladder 2 is coaxially disposed in the module tube 3 and sealed by potting. The module tube 3 and the signal tube 4 are coaxially disposed and connected by threads. The signal tube 4 is coaxially disposed in the inner tube 5 of the sensor. By rotating the module tube 3, the reed switch 1 can be moved in the axial direction to realize the position adjustment of the reed switch 1. The module tube 3 and the signal tube 4 are locked together by the self-locking nut 6.

[0022] like Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram of the internal capsule structure provided in an embodiment of the present invention; Figure 4 This is a structural cross-sectional view of the inner capsule provided in an embodiment of the present invention.

[0023] In an optional embodiment, the bottom of the inner cavity of the inner capsule 2 is provided with a pin hole 23, through which the reed pin of the reed switch 1 passes and is connected to a cable.

[0024] In an optional embodiment, the outer contour of the inner bladder 2 is a circular contour, and a plurality of grooves are provided at intervals along the circumferential direction; one of the grooves is a cable slot 21 for fixing the cable, and all the other grooves are glue channels 22 for guiding the flow of potting glue during potting.

[0025] For example, the inner cavity of the inner bladder 2 is used to support the main body of the reed switch 1. The size of the inner cavity is tolerant to the outer diameter of the glass tube of the reed switch 1, ensuring that the position of the reed switch 1 is always on the central axis of the inner bladder 2. The bottom of the inner cavity of the inner bladder 2 is provided with a pin hole 23 for the reed pin of one end of the reed switch 1 to pass through. Further, the outer contour of the inner bladder 2 has a petal-shaped structure, one of which is a cable slot 21 for collecting the cable welded to the lower reed pin of the reed switch 1, and the other three are glue channels 22 to ensure that the potting compound can pass smoothly during the potting process of the reed switch 1. The overall outer contour of the inner bladder 2 is circular, and the outer contour diameter is tolerant to the inner cavity of the module tube 3. Preferably, the inner cavity of the inner bladder 2 can be clearance-fitted with the glass tube of the reed switch 1, and the inner bladder 2 can be clearance-fitted with the inner cavity of the module tube 3.

[0026] Preferably, the inner bladder 2 is provided with four grooves spaced apart along the circumference, one of which is a cable slot 21 and the other three are glue grooves 22.

[0027] Preferably, the inner bladder 2 can be made of polyester insulating plastic, which has good oil resistance, high and low temperature resistance, and abrasion resistance, and relatively high hardness. It can be injection molded or machined from injection-molded sheets or bars, ensuring good hardness while possessing higher toughness, and can replace non-ferrous metal materials such as copper, zinc alloys, and aluminum alloys.

[0028] It is worth noting that in conventional potting structures, the potting compound directly contacts the glass tube of the reed switch 1. After the potting compound cures, deformation under high and low temperature conditions can generate pressure that could break the glass tube of the reed switch 1, leading to malfunction. In this embodiment, an inner bladder 2 separates the potting compound from the reed switch 1. When the potting compound deforms, the pressure generated is blocked by the inner bladder 2, preventing additional pressure on the glass tube of the reed switch 1 and improving product safety.

[0029] like Figure 5 As shown, Figure 5 This is a structural cross-sectional view of the module tube provided in an embodiment of the present invention.

[0030] In one optional embodiment, one end of the module tube 3 is a smooth rod 31, and the other end is provided with an external thread 32. The inner bladder 2 is coaxially disposed in the inner cavity of one end of the smooth rod 31 of the module tube 3. One end of the smooth rod 31 of the module tube 3 is located inside the signal tube 4, and the end of the module tube 3 with the external thread 32 is threadedly connected to the signal tube 4. A flat head 33 is provided on the module tube 3 near the external thread 32.

[0031] In one optional embodiment, existing potting modules suffer from uneven distribution of potting material during the potting process, which can easily lead to defects such as air bubbles or incomplete potting, reducing potting quality and reliability. Therefore, this invention provides multiple vent holes 34 on the bottom side wall of the inner cavity of the module tube 3. During potting, the module tube 3 can be fixed on a special tooling. After the potting adhesive fills the inner cavity of the module tube 3, excess potting adhesive is discharged through the vent holes 34. After the potting adhesive is full, the vent holes 34 can be temporarily sealed with tape. After the potting adhesive cures, the sealing tape is removed to complete the potting process.

[0032] Preferably, the module tube 3 can be made of hard aluminum alloy, which has a magnetic reluctance close to that of air. After the inner bladder 2 is placed in the inner cavity of the module tube 3, it is sealed with potting compound. A vent hole 34 is provided on the bottom side wall of the inner cavity to effectively prevent the vacuum effect generated in the cavity during the potting process, and to prevent defects such as uneven distribution of potting material, air bubbles, and incomplete potting. The outer wall of the module tube 3 is divided into upper and lower sections. The upper section is a smooth rod 31 for guidance, and the lower section is provided with an external thread 32. The upper and lower adjustments are achieved by the cooperation of the external thread 32 with the signal tube 4. The adjustment range can be set according to the product usage requirements. After the module tube 3 drives the internal reed switch 1 to adjust to the required position, the position is locked with a self-locking nut 6. Correspondingly, a module adjustment thread 41 is provided at one end of the signal tube 4 for connecting the module tube 3.

[0033] like Figure 6 As shown, Figure 6 This is a structural cross-sectional view of the signal tube provided in an embodiment of the present invention.

[0034] In an optional embodiment, the signal tube 4 has a fixing thread 46 at one end away from the module adjustment thread 41 for connecting the sensor tray 7, and a flat head section 45 near the fixing thread 46; a float slide rod 44 is provided in the middle of the signal tube 4, and the sensor float assembly 9 is slidably connected to the float slide rod 44; a guide section 42 is provided near the module adjustment thread 41, and the guide section 42 is matched with the inner diameter of the sensor inner tube 5; a fixing groove 43 is provided on the guide section 42, and the signal tube 4 is matched with the sensor positioning pad 8 through the fixing groove 43 and fixed inside the sensor inner tube 5.

[0035] In one optional embodiment, the reed switch 1 is coaxially fitted with the inner cavity of the inner bladder 2, the inner bladder 2 is coaxially fitted with the inner cavity of the module tube 3, and the signal tube 4 is coaxially fitted with the sensor inner tube 5 through the guide section 42. Through multi-layer coaxial positioning, the radial position of the reed switch 1 can always be on the centerline axis, thus improving the accuracy of the sensor.

[0036] Preferably, the material of the signal tube 4 can be the same as that of the module tube 3. The main function of the signal tube 4 is to assemble the packaged module tube 3, provide a movement path for the sensor float assembly 9, and undertake the transfer and positioning of internal parts with the sensor inner tube 5 and outer tube. After the module tube 3 is encapsulated, it is installed into the position of the module adjustment thread 41 of the signal tube 4 from bottom to top. The sensor float assembly 9 slides into the float slide rod 44 of the signal tube 4 from top to bottom. The signal tube 4 is mounted on the sensor tray 7 through the fixing thread 46. The sensor tray 7 can also be fixed to the sensor inner tube 5 by another sensor positioning pad 8. The guide section 42 of the signal tube 4 is responsible for fitting and assembling with the inner diameter of the sensor inner tube 5. The fixing groove 43 of the signal tube 4 and the sensor positioning pad 8 are fitted together to fix the entire signal tube 4.

[0037] The reed switch potting module of this invention avoids radial position deviation of the reed switch after potting by coaxially encapsulating the reed switch in an inner bladder and using a coaxial assembly structure between the module tube and the signal tube, combined with the coaxial positioning of the signal tube within the sensor's inner tube. This ensures that the reed switch remains at its central axis. Furthermore, the threaded connection between the module tube and the signal tube allows for continuous adjustment of the reed switch's axial position by rotating the module tube, and the adjustment amount can be flexibly set according to requirements, significantly improving the product's assembly versatility and adaptability. Additionally, because the reed switch is entirely encapsulated in the inner bladder, the risk of the glass tube of the reed switch being crushed during the potting process is reduced.

[0038] Example 2 like Figure 7 As shown, Figure 7 This is a flowchart of a reed switch filling and packing method provided in an embodiment of the present invention.

[0039] This embodiment provides a reed switch potting assembly method, using the reed switch potting module of Embodiment 1. The method includes: Step 1: After applying quick-drying adhesive to the reed switch, insert it into the inner cavity of the inner bladder; Step 2: Solder one end of the cable to the reed pin of the reed switch, and insert the other end into the cable slot in the inner bladder; Step 3: Place the entire inner bladder into the module tube, so that the reed pins of the reed switch contact the bottom of the inner cavity of the module tube; Step 4: Pour potting compound into the inner cavity of the module tube until the potting compound overflows from the multiple vent holes on the bottom side wall of the inner cavity of the module tube. Then, temporarily seal the vent holes with tape. After the potting compound has cured, remove the tape to complete the potting of the module tube. Step 5: Connect the pre-filled module tube to the signal tube via thread, rotate the module tube to the preset position, and then use a self-locking nut to lock the module tube and the signal tube together. Step 6: Insert the sensor float assembly into the float slide of the signal tube, tighten the sensor tray through the fixing thread of the signal tube, guide the signal tube through the guide section to slide into the inner tube of the sensor, and finally fix the signal tube through the sensor positioning pad to complete the potting and assembly of the reed switch.

[0040] Specifically, the glass tube of the reed switch is coated with quick-drying adhesive for temporary fixation, avoiding the reed switch's contact pin area when applying the adhesive. After being inserted into the inner cavity of the inner bladder, the cables are soldered to the reed switch's contact pins in the same direction. The cable at the inner bladder's opening end extends freely, while the cable at the inner bladder's pin hole end is inserted into the cable slot. The assembled inner bladder is then placed into the inner cavity of the module tube, ensuring the reed switch's contact pins contact the bottom of the module tube's inner cavity, allowing both cables to naturally exit through the module tube's outlet. The module tube is then fixed on a special fixture for potting. After the potting compound fills the inner cavity of the module tube, excess potting compound is drained through the vent hole. Once the potting compound is full, the vent hole is temporarily sealed with tape. After the potting compound cures, the sealing tape is removed, and any excess compound in the vent hole is removed by grinding, completing the potting process.

[0041] Further, after potting, insert the module tube into the module adjustment thread of the signal tube, rotate the flat end of the module tube to engage its external thread with the module adjustment thread of the signal tube, adjust the screwing depth to the design specification, and use a self-locking nut to lock the position of the module tube relative to the signal tube. Insert the assembled sensor float assembly onto the float slide of the signal tube. Engage the sensor tray with the fixing thread at the top of the signal tube, and rotate the flat end of the signal tube to screw the sensor tray in completely. Connect the assembled signal tube to the inner wall of the sensor inner tube via the guide section, and guide it into the sensor inner tube. Finally, use a sensor positioning gasket to fix and lock the position of the signal tube relative to the sensor inner tube, completing the assembly.

[0042] It is understood that the potting and assembly method provided in Embodiment 2 of the present invention can be used to assemble the reed switch potting module provided in Embodiment 1, and therefore has similar beneficial effects as Embodiment 1. For technical details not disclosed in the potting and assembly method of the present invention, please refer to the description of Embodiment 1 for comprehension.

[0043] The reed switch potting method of this invention physically isolates the reed switch from the potting compound through an inner bladder, effectively preventing the pressure on the reed switch caused by the curing deformation of the potting compound, thus fundamentally reducing the risk of the glass tube being crushed during the potting process. During the potting process, excess adhesive can overflow through the vent hole and expel air bubbles to ensure uniform filling of the adhesive, significantly improving product reliability and service life.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device comprising said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0045] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A reed switch potting module, characterized in that, include: The components include a reed switch, inner bladder, module tube, signal tube, and self-locking nut. The reed switch is disposed in the inner cavity of the inner bladder, the inner bladder is coaxially disposed in the module tube and sealed by potting glue, the module tube and the signal tube are coaxially disposed and connected by threads, and the signal tube is coaxially disposed in the inner tube of the sensor. Rotating the module tube causes the reed switch to move axially to adjust the position of the reed switch. The module tube and the signal tube are locked together by the self-locking nut.

2. The reed switch potting module according to claim 1, characterized in that, The bottom of the inner cavity of the inner capsule is provided with a pin hole, through which the reed pin of the reed switch passes and is connected to a cable.

3. The reed switch potting module according to claim 2, characterized in that, The outer contour of the inner capsule is a circular contour, and multiple grooves are spaced apart along the circumference; one of the grooves is a cable slot for fixing the cable, and all the other grooves are glue channels for guiding the flow of potting glue during potting.

4. The reed switch potting module according to claim 1, characterized in that, One end of the module tube is a smooth rod, and the other end is provided with an external thread. The inner bladder is coaxially disposed in the inner cavity of the smooth rod end of the module tube. The smooth rod end of the module tube is located inside the signal tube, and the threaded end of the module tube is threadedly connected to the signal tube.

5. The reed switch potting module according to claim 4, characterized in that, The module tube has a flat end near the external thread.

6. The reed switch potting module according to claim 4, characterized in that, The inner cavity of the module tube has multiple vent holes on the bottom side wall.

7. The reed switch potting module according to claim 4, characterized in that, One end of the signal tube is provided with a module adjustment thread for connecting the module tube.

8. The reed switch potting module according to claim 7, characterized in that, The signal tube has a fixed thread at the end furthest from the module adjustment thread for connecting to the sensor tray, and a flat head section near the fixed thread; a float slide rod is provided in the middle of the signal tube, and the sensor float assembly is slidably connected to the float slide rod; a guide section is provided near the module adjustment thread, and the guide section matches the inner diameter of the sensor inner tube; a fixing groove is provided on the guide section, and the signal tube matches the sensor positioning pad and is fixed inside the sensor inner tube through the fixing groove.

9. The reed switch potting module according to claim 8, characterized in that, The reed switch is coaxially fitted with the inner cavity of the inner capsule, the inner capsule is coaxially fitted with the inner cavity of the module tube, and the signal tube is coaxially fitted with the sensor inner tube through the guide section.

10. A method for filling and dispensing a reed switch, characterized in that, A method for assembling the reed switch potting module according to any one of claims 1 to 9 includes: Step 1: After applying quick-drying adhesive to the reed switch, insert it into the inner cavity of the inner bladder; Step 2: Solder one end of the cable to the spring pin of the reed switch, and insert the other end into the cable slot of the inner bladder; Step 3: Place the entire inner bladder into the module tube, so that the reed pin of the reed switch contacts the bottom of the inner cavity of the module tube; Step 4: Pour potting compound into the inner cavity of the module tube until the potting compound overflows from the multiple vent holes on the bottom side wall of the inner cavity of the module tube. Then, temporarily seal the vent holes with tape. After the potting compound has cured, remove the tape to complete the potting of the module tube. Step 5: Thread the potted module tube to the signal tube, rotate the module tube to the preset position, and then use a self-locking nut to lock the module tube and the signal tube together; Step 6: Insert the sensor float assembly into the float slide of the signal tube, tighten the sensor tray through the fixing thread of the signal tube, guide the signal tube through the guide section to slide into the inner tube of the sensor, and finally fix the signal tube through the sensor positioning pad to complete the potting and assembly of the reed switch.

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