Intelligent water meter
By using partitions to separate the installation area and a plug-in connection structure in the smart water meter, the problems of circuit boards being susceptible to moisture corrosion and battery replacement being inconvenient are solved, thus achieving a longer lifespan for the circuit boards and convenient battery replacement, and improving the overall performance and adaptability of the water meter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU SHENGJIE INSTRUMENT CO LTD
- Filing Date
- 2025-10-17
- Publication Date
- 2026-07-21
AI Technical Summary
In existing smart water meters, the circuit boards are susceptible to moisture corrosion, which shortens their lifespan and makes battery replacement inconvenient.
The mounting box is divided into upper and lower mounting areas by a partition. The actuator is located in the lower mounting area, and the circuit board and display screen are located in the upper mounting area. The partition prevents moisture from entering the upper mounting area. The power battery housing is open for easy replacement. A plug-in connection and potting structure are used to isolate moisture and connect the circuit board to the actuator. Positioning posts and positioning bosses are provided to improve installation stability and sealing.
It effectively prevents moisture from corroding the circuit board, extends the circuit board life, makes battery replacement convenient, has a simple and reliable connection structure, good sealing performance, and is suitable for different types of water meters.
Smart Images

Figure CN224535162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a smart water meter. Background Technology
[0002] With the advancement of technology, smart water meters are beginning to replace traditional water meters. A smart water meter is essentially a traditional water meter with an added data collector. This data collector can collect the metering signals from the metering mechanism and then record and store them in the control circuit. The control circuit then transmits the data to a server or a mobile device operated by the operator via a communication module to monitor the metering data in real time, eliminating the hassle of manual meter reading on-site.
[0003] Existing smart water meters include a water meter housing, a mechanism installed inside the water meter housing, an actuator that controls the opening or closing of the water meter valve, a circuit board, a display screen connected to the circuit board, and a power battery. The circuit board is located directly above the actuator, which makes it easy for moisture to corrode the circuit board, affecting its use and causing short circuits or damage over time. Furthermore, the power battery of existing smart water meters is located at the bottom of the water meter housing, making replacement very inconvenient. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a smart water meter that adds a partition to prevent water vapor from corroding the circuit board, thereby improving the service life of the circuit board and making battery replacement convenient.
[0005] The technical solution of this utility model is as follows: A smart water meter includes a water meter housing. The water meter housing has a first assembly cavity and a second assembly cavity that communicate with each other. The first assembly cavity contains a mechanism, and the second assembly cavity contains electronic components. An installation box is provided on the water meter housing above the second assembly cavity. The installation box contains an actuator, a circuit board, and a display screen. The actuator and the display screen are both connected to the circuit board. The installation box is divided into a lower installation area and an upper installation area by a partition. The partition is sealed to the inner side wall of the installation box. The actuator is located in the lower installation area, which communicates with the second assembly cavity. The circuit board and the display screen are located in the upper installation area. The upper installation area is convex in shape, with the protruding part located above the mechanism. The circuit board extends to the protruding part, and a data collector is correspondingly provided on the circuit board located within the protruding part.
[0006] Using the above technical solution, the mounting box is divided into upper and lower mounting areas by a partition. The actuator is located in the lower mounting area, and the circuit board and display screen are located in the upper mounting area. The partition can prevent moisture in the lower mounting area from entering the upper mounting area and affecting the circuit board, thus avoiding moisture corrosion of the circuit board and shortening its service life. The data acquisition device on the circuit board located on the raised part can collect data from the mechanism, and the collected values are displayed on the display screen for easy real-time viewing.
[0007] A further feature of this invention is that the partition plate is provided with a through groove, the actuator passes through the through groove and is connected to the circuit board, and the through groove is covered with a potting layer.
[0008] With the above-mentioned further configuration, the actuator can be connected to the circuit board via a plug-in connection. The plug-in structure is located in the through slot and potted with glue to effectively isolate the upper and lower mounting areas, preventing moisture in the lower mounting area from entering the upper mounting area and affecting the use of the circuit board.
[0009] A further feature of this invention is that the side of the mounting box is provided with a receiving cavity for installing a power battery. The upper end of the receiving cavity is open and communicates with the lower mounting area. A detachable cover is connected to the opening of the receiving cavity.
[0010] With the above-mentioned further design, the power battery is easy to replace; it can be disassembled and replaced simply by unscrewing the cover, which is threaded into the receiving cavity.
[0011] A further feature of this invention is that a gap is provided between the lower end face of the protruding portion and the upper end face of the water meter housing.
[0012] With the above-mentioned further design, the cover is not only compatible with dry water meters, but also with wet water meters, making it highly versatile.
[0013] A further feature of this invention is that the mechanism is equipped with a pointer counter, the protrusion is positioned corresponding to the pointer counter, and the data collector is equipped with a Hall sensor to collect the rotation count of the pointer counter.
[0014] With the above-mentioned further configuration, when the gears or worm gears inside the mechanism rotate, the pointer on the pointer counter will also rotate. By monitoring the number of rotations of the pointer counter through a Hall sensor, the water flow can be monitored and the data can be displayed on the screen in real time.
[0015] A further feature of this invention is that the mounting box is provided with a connecting plate extending toward the first assembly cavity, the connecting plate is provided with a connecting column that runs vertically through the mounting plate, the water meter housing is provided with a corresponding connecting hole, the connecting column is installed in the connecting hole by screws, and the connecting column is plastic-sealed.
[0016] The above-mentioned further design makes the mounting box structure more robust, and the screws are not exposed, which is more aesthetically pleasing and also prevents the screws from rusting, thus avoiding problems with subsequent disassembly and maintenance.
[0017] A further feature of this invention is that the protruding portion is provided with a positioning post, the partition plate is provided with a first mounting hole, the circuit board is provided with a positioning hole and a second mounting hole, and when the circuit board is located in the upper mounting area, the positioning post is inserted into the positioning hole, and the second mounting hole is coaxially arranged with the first mounting hole and connected by screws.
[0018] The above-mentioned further design results in a simple structure, convenient installation, and a robust and stable structure after the circuit board is installed.
[0019] A further feature of this invention is that the upper mounting area is provided with a positioning boss along its circumference, a cover is provided on the positioning boss, the cover is sealed to the upper mounting area, and the display screen is located on the cover.
[0020] With the above-mentioned further settings, the display screen structure is stable and will not shake. At the same time, potting is applied to further improve the sealing performance and protect the circuit board.
[0021] A further feature of this utility model includes a cover that covers the water meter housing and the mounting box. The cover has an opening corresponding to the position of the display screen, a through hole corresponding to the position of the first assembly cavity, and a hinge seat located on one side of the through hole. A flip cover is hinged to the hinge seat, and the flip cover can be rotated to cover or expose the through hole.
[0022] With the above-mentioned further design, the flip cover can be opened to view the pointers and readings on the movement, while the flip cover can be closed to protect the movement from being exposed, making it more aesthetically pleasing. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the present utility model; Figure 3 This is a schematic diagram of the mounting box being installed on the water meter housing according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the circuit board installed in the mounting box according to a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the upper mounting area inside the mounting box in a specific embodiment of the present utility model; Figure 6 This is a schematic diagram of the lower mounting area inside the mounting box in a specific embodiment of the present invention; Figure 7 This is a schematic diagram of the protruding portion and the water meter housing in a specific embodiment of the present utility model; Figure 8 This is a schematic diagram of the circuit board according to a specific embodiment of the present utility model; Figure 9 This is a schematic diagram of the cover body according to a specific embodiment of the present utility model; Figure 10 This is a schematic diagram of the water meter housing according to a specific embodiment of the present invention.
[0024] In the diagram, 1. Water meter housing; 11. First assembly cavity; 111. Mechanism; 112. Pointer counter; 12. Second assembly cavity; 13. Connecting hole; 2. Cover; 21. Opening; 22. Through hole; 23. Hinge seat; 24. Flip cover; 3. Mounting box; 31. Lower mounting area; 32. Upper mounting area; 321. Positioning boss; 322. Protruding part; 323. Positioning post; 33. Receiving cavity; 34. Cover; 35. Connecting plate; 36. Connecting post; 4. Actuator; 5. Circuit board; 51. Collector; 52. Positioning hole; 53. Second mounting hole; 6. Display screen; 7. Partition; 71. Through groove; 72. First mounting hole; 8. Cover. Detailed Implementation
[0025] The technical solutions in this embodiment 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] like Figures 1-10As shown, a smart water meter includes a water meter housing 1. The water meter housing 1 has a first assembly cavity 11 and a second assembly cavity 12 that communicate with each other. The first assembly cavity 11 houses a mechanism 111, and the second assembly cavity 12 houses electronic components. An installation box 3 is located above the second assembly cavity 12 on the water meter housing 1. The installation box 3 houses an actuator 4, a circuit board 5, and a display screen 6. The actuator 4, mechanism 111, and electronic components are all existing technologies and will not be described in detail. The actuator 4 and the display screen 6 are both connected to the circuit board 5. The installation box... The mounting box 3 is divided into a lower mounting area 31 and an upper mounting area 32 by a partition 7. The partition 7 is sealed to the inner wall of the mounting box 3, which can be achieved by using a sealing ring or by applying adhesive. The actuator 4 is located in the lower mounting area 31, which communicates with the second assembly cavity 12. The circuit board 5 and the display screen 6 are located in the upper mounting area 32. After the circuit board 5 is installed in the upper mounting area 32, its outer ring can be sealed with adhesive. The upper mounting area 32 is convex in shape, with the protruding part 322 located above the mechanism 111. The circuit board 5 extends to the protruding part 322, and... A data collector 51 is correspondingly installed on the circuit board 5 located within the protrusion 322. A partition 7 divides the mounting box 3 into upper and lower mounting areas. The actuator 4 is located in the lower mounting area 31, while the circuit board 5 and display screen 6 are located in the upper mounting area 32. The partition 7 prevents moisture from the lower mounting area 31 from entering the upper mounting area 32 and affecting the circuit board 5, thus avoiding moisture corrosion and shortening its lifespan. The data collector 51 on the circuit board 5 in the protrusion 322 can collect data from the mechanism 111, and the collected values are displayed on the display screen 6 for real-time viewing. The mechanism 111 is equipped with a pointer counter 112, and the protrusion 322 is set corresponding to the pointer counter 112. The collector 51 is equipped with a Hall sensor to collect the rotation number of the pointer counter 112. There are two Hall sensors, which correspond to the numbers three and eight on the pointer counter 112 respectively. When the gear or worm gear in the mechanism 111 rotates, the pointer on the pointer counter 112 will also rotate. By monitoring the number of rotations of the pointer counter 112 through the Hall sensor, the water flow can be monitored and the data can be displayed on the display screen 6 in real time.
[0030] The partition 7 has a through groove 71, through which the actuator 4 passes and is plugged into the circuit board 5. The through groove 71 is covered with a potting layer. The actuator 4 is connected to the circuit board 5 by plugging in. The plugging structure is located in the through groove 71 and is potted, which effectively isolates the upper and lower mounting areas 31 and prevents moisture in the lower mounting area 31 from entering the upper mounting area 32 and affecting the use of the circuit board 5. The plug-in connection does not use wire connection, eliminating the need for soldering, simplifying assembly, and avoiding wiring errors during connection. Wires are prone to shaking when the glue has not yet solidified after potting, which can cause cracks in the potting layer at the wires, making it easy for water to enter. The plug-in connection makes the potting layer less susceptible to damage and provides better waterproofing.
[0031] The mounting box 3 has a receiving cavity 33 for installing a power battery on its side. The upper end of the receiving cavity 33 is open and communicates with the lower mounting area 31. A detachable cover 34 is connected to the open end of the receiving cavity 33. Compared with the prior art, where the receiving cavity 33 for installing the battery is located on the lower end face of the cover 2, the power battery of this utility model is easy to replace. It can be disassembled and replaced by simply unscrewing the cover 34. The cover 34 is threaded to the receiving cavity 33.
[0032] A gap is provided between the lower end face of the protrusion 322 and the upper end face of the water meter housing 1. The cover 2 is not only compatible with dry water meters, but also with wet water meters. The heights of dry water meters and wet water meters are different, so a gap is provided to accommodate different water meters, making it highly versatile.
[0033] The mounting box 3 is provided with a connecting plate 35 extending towards the first assembly cavity 11. There are two connecting plates 35, located on both sides of the water meter housing 1. The connecting plate 35 is provided with a connecting post 36 that runs vertically through it. The water meter housing 1 is provided with a corresponding connecting hole 13. The connecting post 36 is installed in the connecting hole 13 by screws and is plastic-sealed. Plastic sealing means using plastic parts to block the connecting post so that the screws are not exposed, which is more aesthetically pleasing and also prevents the screws from rusting, affecting subsequent disassembly and maintenance. At the same time, after the connecting post is plastic-sealed, the mounting box can also be used as a separate control box.
[0034] The protruding portion 322 is provided with a positioning post 323. The partition plate 7 is provided with a first mounting hole 72. The circuit board 5 is provided with a positioning hole 52 and a second mounting hole 53. When the circuit board 5 is located in the upper mounting area 32, the positioning post 323 is inserted into the positioning hole 52. The second mounting hole 53 is coaxially arranged with the first mounting hole 72 and connected by screws. The structure is simple and easy to install. The circuit board 5 is firmly installed and has good stability. The upper mounting area 32 is provided with a positioning boss 321 along its circumference. A cover 8 is placed on the positioning boss 321. The cover 8 is sealed with the upper mounting area 32. The display screen 6 is placed on the cover 8. It has good stability and will not shake. The sealing can be achieved by potting glue on the outer ring of the cover to prevent water or impurities from entering from the gap between the cover and the side wall of the upper mounting area, which would affect the use of the circuit breaker and further improve the sealing performance and protect the circuit board 5. After the cover 8 is installed, the circuit board does not need to be sealed with glue.
[0035] It also includes a cover 2, which covers the water meter housing 1 and the mounting box 3. The cover 2 has an opening 21 corresponding to the position of the display screen 6 so that the display screen 6 can be exposed. Alternatively, a transparent cover can be provided at the opening 21 to protect the display screen 6 without affecting the viewing. The cover 2 has a through hole 22 corresponding to the position of the first assembly cavity 11 and a hinge seat 23 located on one side of the through hole 22. A flip cover 24 is hinged to the hinge seat 23. The flip cover 24 can cover or expose the through hole 22 when rotated. When the flip cover 24 is flipped up, the pointer, reading, etc. on the movement 111 can be viewed. When the flip cover 24 is closed, it can protect the movement 111 so that it is not exposed and is more aesthetically pleasing.
Claims
1. A smart water meter, comprising a water meter housing (1), wherein the water meter housing (1) is provided with a first assembly cavity (11) and a second assembly cavity (12) communicating with each other, wherein a mechanism (111) is provided in the first assembly cavity (11), and an electronic component is provided in the second assembly cavity (12), wherein an installation box (3) is provided above the second assembly cavity (12) on the water meter housing (1), and wherein an actuator (4), a circuit board (5), and a display screen (6) are provided in the installation box (3), wherein the actuator (4) and the display screen (6) are both connected to the circuit board (5), characterized in that, The mounting box (3) is divided into a lower mounting area (31) and an upper mounting area (32) by a partition (7). The partition (7) is sealed to the inner side wall of the mounting box (3). The actuator (4) is located in the lower mounting area (31). The lower mounting area (31) is connected to the second assembly cavity (12). The circuit board (5) and the display screen (6) are located in the upper mounting area (32). The upper mounting area (32) is convex in shape. The protruding part (322) is located above the mechanism (111). The circuit board (5) extends to the protruding part (322), and a collector (51) is correspondingly provided on the circuit board (5) located in the protruding part (322).
2. The smart water meter according to claim 1, characterized in that, The partition (7) is provided with a through groove (71), the actuator (4) passes through the through groove (71) and is inserted into the circuit board (5), and the through groove (71) is covered with a potting layer.
3. The smart water meter according to claim 1 or 2, characterized in that, The mounting box (3) has a receiving cavity (33) for installing a power battery on its side. The upper end of the receiving cavity (33) is open and communicates with the lower mounting area (31). A detachable cover (34) is connected to the opening of the receiving cavity (33).
4. The smart water meter according to claim 1 or 2, characterized in that, The mechanism (111) is equipped with a pointer counter (112), the protrusion (322) is set to correspond to the pointer counter (112), and the collector (51) is set with a Hall sensor to collect the number of rotations of the pointer counter (112).
5. The smart water meter according to claim 1 or 2, characterized in that, A gap is provided between the lower end face of the protrusion (322) and the upper end face of the water meter housing (1).
6. The smart water meter according to claim 1 or 2, characterized in that, The mounting box (3) is provided with a connecting plate (35) extending toward the first assembly cavity (11). The connecting plate (35) is provided with a connecting column (36) that runs vertically through the top and bottom. The water meter housing (1) is provided with a corresponding connecting hole (13). The connecting column (36) is installed in the connecting hole (13) by screws and the connecting column (36) is plastic sealed.
7. The smart water meter according to claim 1 or 2, characterized in that, The protruding part (322) is provided with a positioning post (323), the partition plate (7) is provided with a first mounting hole (72), the circuit board (5) is provided with a positioning hole (52) and a second mounting hole (53). When the circuit board (5) is located in the upper mounting area (32), the positioning post (323) is inserted into the positioning hole (52), and the second mounting hole (53) is coaxially arranged with the first mounting hole (72) and connected by screws.
8. The smart water meter according to claim 1 or 2, characterized in that, The upper mounting area (32) is provided with a positioning boss (321) along its circumference. A cover (8) is placed on the positioning boss (321). The cover (8) is sealed to the upper mounting area (32). The display screen (6) is placed on the cover (8).
9. The smart water meter according to claim 1 or 2, characterized in that, It also includes a cover (2), which covers the water meter housing (1) and the mounting box (3), and the cover (2) has an opening (21) corresponding to the position of the display screen (6).
10. The smart water meter according to claim 9, characterized in that, The cover (2) is provided with a through hole (22) corresponding to the first assembly cavity (11) and a hinge seat (23) located on one side of the through hole (22). A flip cover (24) is hinged on the hinge seat (23). The flip cover (24) can cover or expose the through hole (22) by rotating.