Improved non-magnetic sensor sealing assembly

Abstract

The utility model relates to an improved sealing assembly of a non-magnetic sensor. The sealing assembly comprises a lower box and an upper box which are welded together through ultrasonic waves. An adapter bracket is assembled in the lower box through a bracket assembling screw; a non-magnetic sensor is assembled on the adapter bracket through a module assembling screw; the lower box and the upper box form a sealed cavity, and pouring sealant is poured in the sealed cavity; the bottom of the lower box is also provided with a wire passing hole; a communication wire penetrates through the wire passing hole. A wire sealing ring is arranged in the wire passing hole, and a nut is screwed outside the wire passing hole; and the communication lead passes through the nut and the lead sealing ring and then is electrically welded with the non-magnetic sensor. Compared with the prior art, the utility model has the advantages of good sealing performance, simple structure, simplified production process and the like.

Description

Technical Field

[0001] This utility model relates to a sealing assembly, and more particularly to an improved sealing assembly for a non-magnetic sensor. Background Technology

[0002] Water meters are an essential water metering device for every household. Most water meters today are smart water meters, which use non-magnetic sensors to intelligently measure water consumption. Because non-magnetic sensors cannot be exposed to water, they are often encapsulated in a sealed enclosure using potting compound to prevent moisture contamination.

[0003] However, due to prolonged use, the potting compound may peel off, resulting in gaps between the potting compound and the sealed box wall. Moisture can seep in through these gaps, affecting or even damaging the non-magnetic sensor and disrupting its normal operation. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an improved non-magnetic sensor sealing assembly.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An improved non-magnetic sensor sealing assembly includes a lower box and an upper box ultrasonically welded together. An adapter bracket is mounted inside the lower box via bracket mounting screws. A non-magnetic sensor is mounted on the adapter bracket via module mounting screws. The lower and upper boxes form a sealed cavity filled with potting compound. A wire-passing hole is provided at the bottom of the lower box. A communication wire passes through the wire-passing hole. A wire sealing ring is provided inside the wire-passing hole, and a nut is screwed onto the outside. The communication wire passes through the nut and the wire sealing ring and is then electrically welded to the non-magnetic sensor.

[0007] Furthermore, the lower box is provided with two bracket mounting positioning posts and two bracket mounting screw posts; the adapter bracket is provided with two corresponding bracket mounting positioning holes and two bracket mounting screw holes; the bracket mounting positioning holes are inserted into the bracket mounting positioning posts; the bracket mounting screw holes are inserted into the bracket mounting screw posts and fixed by bracket mounting screws.

[0008] Furthermore, the adapter bracket is provided with four module mounting positioning posts and one module mounting screw post; the non-magnetic sensor is provided with four corresponding module mounting positioning holes and one module mounting screw hole; the module mounting positioning holes are inserted into the module mounting positioning posts; the module mounting screw holes are inserted into the module mounting screw posts and fixed by module assembly screws.

[0009] Furthermore, the lower box and the upper box are made of PE material.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] (1) The upper and lower boxes of this utility model are made of PE material with low water permeability and are connected together by ultrasonic welding process. They are combined with wire sealing ring and nut to form a sealed cavity, which provides the first protection for the non-magnetic sensor. The potting glue filled by the wire hole completely covers the non-magnetic sensor in the sealed cavity, forming the second protective layer. At the same time, the potting port and the wire hole are combined together, reducing the number of sealing ports, improving the sealing performance, simplifying the production process, and improving the production efficiency.

[0012] (2) The adapter bracket set inside the sealed cavity of this utility model does not need to consider the water permeability of its material. Instead, it is made of a material with an expansion coefficient close to that of the potting compound and good adhesion to the potting compound. The non-magnetic sensor is installed on the adapter bracket and does not directly contact the upper and lower boxes. This reduces the impact of gaps formed by the peeling of the sidewalls and potting compound between the potting compound and the lower and upper boxes during long-term use, thereby improving the sealing performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of the sealing assembly provided by this utility model;

[0014] Figure 2 This is an exploded structural diagram of the sealing component provided by this utility model.

[0015] The labels in the diagram indicate:

[0016] 1. Lower box; 2. Non-magnetic sensor module; 3. Upper box; 4. Module assembly screws; 5. Adapter bracket; 6. Bracket assembly screws; 7. Encapsulating adhesive; 8. Wire sealing ring; 9. Nut; 10. Communication wire; 11. Wire through hole; 12. Bracket mounting positioning post; 13. Bracket mounting screw post; 14. Bracket mounting positioning hole; 15. Bracket mounting screw hole; 16. Module mounting positioning post; 17. Module mounting screw post; 18. Module mounting positioning hole; 19. Module mounting screw hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. Example

[0023] like Figure 1 and 2As shown, an improved non-magnetic sensor sealing assembly includes a lower box 1 and an upper box 3 ultrasonically welded together. The upper box 3 and the lower box 1 are made of PE material with low water permeability. An adapter bracket 5 is mounted inside the lower box 1 via bracket mounting screws 6. A non-magnetic sensor 2 is mounted on the adapter bracket 5 via module mounting screws 4. The lower box 1 and the upper box 3 form a sealed cavity, which is filled with potting compound 7. A wire hole 11 is also provided at the bottom of the lower box 1. A communication wire 10 passes through the wire hole 11. A wire sealing ring 8 is provided inside the wire hole 11, and a nut 9 is screwed on the outside. The communication wire 10 passes through the nut 9 and the wire sealing ring 8 and is then electrically welded to the non-magnetic sensor 2.

[0024] To facilitate the installation and fixation of the adapter bracket 5 inside the lower box 1, the lower box 1 is provided with two bracket mounting positioning posts 12 and two bracket mounting screw posts 13; the adapter bracket 5 is provided with two corresponding bracket mounting positioning holes 14 and two bracket mounting screw holes 15; the bracket mounting positioning holes 14 are inserted into the bracket mounting positioning posts 12; the bracket mounting screw holes 15 are inserted into the bracket mounting screw posts 13 and fixed by bracket mounting screws 6.

[0025] To facilitate the fixing of the non-magnetic sensor 2 onto the adapter bracket 5, the adapter bracket 5 is provided with four module mounting positioning posts 16 and one module mounting screw post 17; the non-magnetic sensor 2 is provided with four corresponding module mounting positioning holes 18 and one module mounting screw hole 19; the module mounting positioning holes 18 are inserted into the module mounting positioning posts 16; the module mounting screw holes 19 are inserted into the module mounting screw posts 17 and fixed by the module assembly screws 4.

[0026] The assembly steps of the sealing component of this utility model are as follows:

[0027] 1. The adapter bracket 5 is fitted into the lower box 1 through the bracket mounting positioning hole 14 and the bracket mounting screw hole 15, and the bracket mounting positioning post 12 and the bracket mounting screw post 13, and then fixedly assembled into the lower box 1 by the bracket mounting screw 6.

[0028] 2. Pass the communication wire 10 through the nut 9, the wire hole 11 and the wire sealing ring 8 from the bottom in sequence, and then weld it to the non-magnetic sensor 2.

[0029] 3. The non-magnetic sensor 2 is fitted with the module mounting positioning hole 18 and the module mounting screw hole 19, and then fixed to the adapter bracket 5 by the module mounting positioning post 16 and the module mounting screw post 17, and fixed by the module assembly screw 4.

[0030] 4. The upper box 3 is welded to the top of the lower box 1 using ultrasonic welding to form a sealed cavity.

[0031] 5. Turn the entire sealed cavity upside down and fill it with potting compound 7 through the wire hole 11 until it is completely submerged.

[0032] 6. Insert the wire sealing ring 8 through the wire hole 11 and tighten the nut 9. After the adhesive has cured, the product assembly is complete.

[0033] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An improved non-magnetic sensor sealing assembly, characterized in that, The sealing assembly includes a lower box (1) and an upper box (3) welded together by ultrasonic welding; an adapter bracket (5) is mounted inside the lower box (1) by bracket mounting screws (6); a non-magnetic sensor (2) is mounted on the adapter bracket (5) by module mounting screws (4); the lower box (1) and the upper box (3) form a sealed cavity, and the sealed cavity is filled with potting compound (7); a wire hole (11) is also provided at the bottom of the lower box (1); a communication wire (10) is passed through the wire hole (11); a wire sealing ring (8) is provided inside the wire hole (11), and a nut (9) is screwed on the outside; the communication wire (10) passes through the nut (9) and the wire sealing ring (8) and is then electrically welded to the non-magnetic sensor (2).

2. The improved non-magnetic sensor sealing assembly according to claim 1, characterized in that, The lower box (1) is provided with two bracket mounting positioning posts (12) and two bracket mounting screw posts (13); the adapter bracket (5) is provided with two corresponding bracket mounting positioning holes (14) and two bracket mounting screw holes (15); the bracket mounting positioning holes (14) are inserted into the bracket mounting positioning posts (12); the bracket mounting screw holes (15) are inserted into the bracket mounting screw posts (13) and fixed by bracket mounting screws (6).

3. An improved non-magnetic sensor sealing assembly according to claim 1, characterized in that, The adapter bracket (5) is provided with four module mounting positioning posts (16) and one module mounting screw post (17); the non-magnetic sensor (2) is provided with four corresponding module mounting positioning holes (18) and one module mounting screw hole (19); the module mounting positioning holes (18) are inserted into the module mounting positioning posts (16); the module mounting screw holes (19) are inserted into the module mounting screw posts (17) and fixed by the module assembly screws (4).

4. An improved non-magnetic sensor sealing assembly according to claim 1, characterized in that, The lower box (1) and upper box (3) are made of PE material.

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