Non-magnetic sensor sealing assembly

Abstract

The utility model relates to a sealing assembly of a non-magnetic sensor. The sealing assembly comprises a sealing lower box and a sealing upper box which are welded together to form a sealing cavity. A non-magnetic sensor is encapsulated in the sealed lower box through a pouring sealant; the non-magnetic sensor is mounted on a bracket; a wire harness sealing ring and a pressing block are arranged in the sealing lower box; the pressing block is pressed on the wire harness sealing ring and is fixed through the pressing block locking screw; a lead is electrically welded on the non-magnetic sensor; the wire passes through the pressing block and the wire harness sealing ring and goes out of the sealing lower box to the outside. A glue filling opening is formed in the top of the upper sealing box; the glue filling port is provided with an O-shaped sealing ring and a glue filling port sealing cover; and the glue filling port sealing cover is fixed on the sealing upper box through a sealing screw. Compared with the prior art, the sealing device has the advantages of good sealing performance, simple structure, difficulty in water inlet damage and the like.

Description

Technical Field

[0001] This utility model relates to the field of non-magnetic sensor technology, and in particular to a non-magnetic sensor sealing assembly. Background Technology

[0002] In the water meter manufacturing industry, potting compound is commonly used to protect electronic modules, ensuring that smart water meters function properly in low-lying, humid installation environments. However, in actual use, due to differences in the expansion coefficients of the potting compound and the sealing box material, as well as differences in the adhesion between the potting compound and sealing boxes of different materials, and the reduced adhesion performance caused by direct contact between the bonding area and water, the potting compound and the sealing box may peel off. Water or water vapor can then enter the sealing box through the gaps at the peeling point, corroding electronic components such as non-magnetic sensors, thus causing water meter malfunctions and affecting the normal use of the water meter. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a non-magnetic sensor sealing assembly.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A non-magnetic sensor sealing assembly includes a lower sealing box and an upper sealing box welded together to form a sealing cavity; a non-magnetic sensor is potted in the lower sealing box with potting compound; the non-magnetic sensor is mounted on a bracket; a wire harness sealing ring and a pressure block are disposed inside the lower sealing box; the pressure block presses against the wire harness sealing ring and is fixed by a pressure block locking screw; a wire is welded to the non-magnetic sensor; the wire passes through the pressure block and the wire harness sealing ring and exits from the lower sealing box to the outside; a potting port is provided at the top of the upper sealing box; an O-ring and a potting port sealing cap are provided on the potting port; the potting port sealing cap is fixed to the upper sealing box by sealing screws.

[0006] Furthermore, a coil mounting slot is provided inside the sealed lower box; the bottom of the non-magnetic sensor is placed inside the coil mounting slot.

[0007] Furthermore, the bracket is provided with a module mounting slot, a pin hole, and a through hole; the non-magnetic sensor is inserted into the module mounting slot; the non-magnetic sensor is provided with a limit hole; a limit pin is inserted between the pin hole and the limit hole for fixation.

[0008] Furthermore, the sealing lower box has positioning ribs on its side wall; the sealing lower box also has screw holes; the bracket is connected by the side and positioning ribs, the through holes are aligned with the screw holes, and it is fixed by fixing screws.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] (1) By designing a sealed upper box and a sealed lower box, this utility model forms a sealed cavity outside the potting adhesive layer, and encapsulates the non-magnetic sensor in the sealed cavity, so that water does not come into direct contact with the potting adhesive, thus preventing it from entering the sealed cavity from the peeling gap and corroding the electronic device, thereby improving the sealing and waterproof performance.

[0011] (2) The present invention uses a bracket to install a non-magnetic sensor. First, the coil mounting groove is potted, and then the bracket is placed in for fixation. After the potting adhesive has cured, the bracket is removed and the non-magnetic sensor is finally potted. After the non-magnetic sensor is potted, it does not contact the wall of the sealed box and is completely covered by the potting adhesive, which effectively improves the sealing performance of the product. Attached Figure Description

[0012] Figure 1 A front cross-sectional view of the sealing assembly provided by this utility model;

[0013] Figure 2 This is a schematic diagram of the side cross-sectional structure of the sealing assembly provided by this utility model;

[0014] Figure 3 A schematic diagram of the support structure provided by this utility model;

[0015] Figure 4 A schematic diagram of the sealed lower box structure provided by this utility model;

[0016] Figure 5 A schematic diagram of the assembly structure of the bracket and the sealed lower box provided by this utility model;

[0017] Figure 6 A schematic diagram of the overall structure of the sealing assembly provided by this utility model.

[0018] The labels in the diagram indicate:

[0019] 1. Sealed lower box; 2. Sealed upper box; 3. Encapsulating adhesive; 4. Non-magnetic sensor; 5. Bracket; 6. Wiring harness sealing ring; 7. Pressure block; 8. Pressure block locking screw; 9. Wire; 10. Encapsulation port; 11. O-ring; 12. Encapsulation port sealing cap; 13. Sealing screw; 14. Coil mounting slot; 15. Module mounting slot; 16. Pin hole; 17. Through hole; 18. Limiting hole; 19. Limiting pin; 20. Positioning rib; 21. Screw hole; 22. Fixing screw. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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," not that the structure must be completely horizontal, but can be slightly tilted. Example

[0026] like Figures 1-6As shown, a non-magnetic sensor sealing assembly includes a lower sealing box 1 and an upper sealing box 2 welded together to form a sealing cavity. The sealing cavity prevents water from directly contacting the potting compound 3, improving sealing and waterproofing performance. A non-magnetic sensor 4 is potted inside the lower sealing box 1 using the potting compound 3. The non-magnetic sensor 4 is mounted on a bracket 5. A wire harness sealing ring 6 and a pressure block 7 are provided inside the lower sealing box 1. The pressure block 7 presses against the wire harness sealing ring 6 and is fixed by a pressure block locking screw 8. A wire 9 is welded to the non-magnetic sensor 4. The wire 9 passes through the pressure block 7 and the wire harness sealing ring 6 and exits from the lower sealing box 1 to the outside. A potting port 10 is provided at the top of the upper sealing box 2 for potting the potting compound 3. An O-ring 11 and a potting port sealing cap 1 are provided on the potting port 10. 2; The glue-filling port sealing cap 12 is fixed to the upper sealing box 2 by sealing screws 13 to form a sealed protection; The lower sealing box 1 is provided with a coil mounting groove 14; The bottom of the non-magnetic sensor 4 is placed in the coil mounting groove 14; The bracket 5 is provided with a module mounting groove 15, a pin hole 16 and a through hole 17; The non-magnetic sensor 4 is inserted into the module mounting groove 15 and can move left and right for easy installation and disassembly; The non-magnetic sensor 4 is provided with a limit hole 18; A limit pin 19 is inserted between the pin hole 16 and the limit hole 18 for fixation; The lower sealing box 1 is provided with a positioning rib 20 on its side wall; The lower sealing box 1 is also provided with a screw hole 21; The bracket 5 is connected by the side and the positioning rib 20, the through hole 17 is aligned with the screw hole 21 and fixed by fixing screws 22.

[0027] The assembly steps of the sealing component of this utility model are as follows:

[0028] First, thread the wire 9 through the bottom of the sealed lower box 1, through the wire harness sealing ring 6 and the pressure block 7, and then weld it to the non-magnetic sensor 4. Then, insert the non-magnetic sensor 4 into the module mounting slot 15 on the bracket 5 and fix it in place by the limit pin 19. Next, fill a small amount of potting compound 3 into the coil mounting slot 14. At the same time, align the side of the bracket 5 with the positioning rib 20, align the through hole 17 with the screw hole 21, and install the bracket 5 and the non-magnetic sensor 4 into the sealed lower box 1. Then, fix it with the fixing screw 22. Then, fill the coil mounting slot 14 completely. After the potting compound 3 in the coil mounting slot 14 has cured, remove the limit pin 19 and the fixing screw 22. Then, move the bracket 5 away from the coil mounting slot 14 so that the module mounting slot 15 of the bracket 5 is detached from the non-magnetic sensor 4. Remove the bracket 5, cover the sealed upper box 2 and weld it. Finally, pour potting compound 3 into the potting port 10 until it is full, cover the potting port sealing cap 12, and fix it with the sealing screw 13 to complete the assembly of the sealing assembly.

[0029] 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. A non-magnetic sensor sealing assembly, characterized in that, The sealing assembly includes a lower sealing box (1) and an upper sealing box (2) welded together to form a sealing cavity; a non-magnetic sensor (4) is potted in the lower sealing box (1) with potting compound (3); the non-magnetic sensor (4) is mounted on a bracket (5); a wire harness sealing ring (6) and a pressure block (7) are provided in the lower sealing box (1); the pressure block (7) is pressed on the wire harness sealing ring (6) and fixed by a pressure block locking screw (8); a wire (9) is welded to the non-magnetic sensor (4); the wire (9) passes through the pressure block (7) and the wire harness sealing ring (6) and exits from the lower sealing box (1) to the outside; a potting port (10) is provided on the top of the upper sealing box (2); an O-ring (11) and a potting port sealing cap (12) are provided on the potting port (10); the potting port sealing cap (12) is fixed to the upper sealing box (2) by a sealing screw (13).

2. The non-magnetic sensor sealing assembly according to claim 1, characterized in that, The sealed lower box (1) is provided with a coil mounting groove (14); the bottom of the non-magnetic sensor (4) is placed in the coil mounting groove (14).

3. The non-magnetic sensor sealing assembly according to claim 1, characterized in that, The bracket (5) is provided with a module mounting slot (15), a pin hole (16) and a through hole (17); the non-magnetic sensor (4) is inserted into the module mounting slot (15); the non-magnetic sensor (4) is provided with a limit hole (18); a limit pin (19) is inserted between the pin hole (16) and the limit hole (18) for fixation.

4. The non-magnetic sensor sealing assembly according to claim 3, characterized in that, The sealing lower box (1) is provided with a positioning rib (20) on its side wall; the sealing lower box (1) is also provided with a screw hole (21); the bracket (5) is connected by the side and the positioning rib (20), the through hole (17) is aligned with the screw hole (21), and is fixed by a fixing screw (22).

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