Smart water meter

Abstract

The present utility model belongs to the field of smart water meters. Disclosed is a smart water meter. The smart water meter comprises a collector, an actuator and a control assembly, wherein the collector collects a metering signal in the smart water meter and is electrically connected to the control assembly, and the control assembly is connected to the actuator and controls an actuator electric motor in the actuator to execute an opening / closing action. The smart water meter is characterized in that the control assembly comprises a first circuit board and a second circuit board, wherein the second circuit board is located in the actuator, the first circuit board is located outside the actuator, the collector is connected to the first circuit board, and the first circuit board is connected to the second circuit board in a plugged manner. The advantages of the present utility model lie in that the design of an internal structure is optimized; the mounting and maintenance are convenient due to the fact that circuit boards are connected in a plugged manner and there is almost no wire; mechanical production can be realized due to the fact that there is no need to manually weld wires; the yield is high; and the waterproof performance is good.

Description

A smart water meter

Technical field

[0001] The utility model relates to the field of intelligent water meters, in particular to an intelligent water meter. [Background Technology]

[0002] With technological advancements, smart water meters are beginning to replace traditional water meters. A so-called smart water meter is a traditional water meter with a data collector added to it. This collector collects the metering signal from the metering mechanism and then records and stores it in a control circuit. The control circuit then transmits the data via a communication module to a server or the operator's mobile device for real-time meter reading, eliminating the need for manual on-site meter reading. The applicant has also previously filed patent applications, including CN213397238U and CN217786269U, to improve smart water meters.

[0003] Smart water meters have many components, including actuators, circuit boards, battery packs, etc. These components are usually connected by wires, which makes the internal structure of smart water meters more complicated, and assembly and repair are more cumbersome. In addition, the waterproof performance is poor, and short circuits and damage are prone to occur.

[0004] [Utility Model Content]

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an intelligent water meter that is easy to produce and assemble.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The utility model provides an intelligent water meter, comprising a collector, an actuator and a control component. The collector collects metering signals in the intelligent water meter and is electrically connected to the control component. The control component is connected to the actuator and controls the actuator motor in the actuator to perform opening and closing actions. The control component comprises a first circuit board and a second circuit board, the second circuit board is located inside the actuator, and the first circuit board is located outside the actuator. The collector is connected to the first circuit board, and the first circuit board and the second circuit board are connected by plugging.

[0008] The beneficial effects of adopting the utility model are:

[0009] The utility model uses an insulating protective cover to protect the second plug terminal. Such a design has the following advantages:

[0010] First, the first circuit board located inside the actuator and the second circuit board located outside the actuator are connected by plug-in connection, and no wires are provided between the two, which makes the overall structure simpler and facilitates replacement of components during installation and repair.

[0011] Secondly, since the circuit connection between the first circuit board and the second circuit board of a traditional smart water meter usually includes multiple connecting wires, manual welding usually requires checking the order or color of the wires one by one for manual distinction. In this process, there is a certain probability that wires of different orders or different colors will be welded incorrectly, resulting in poor yield in the later stage. However, through the plug-in method, the order of each wire is fixed and does not require manual one-by-one checking, which greatly simplifies the assembly process and makes it less likely that the wires will be connected incorrectly. At the same time, the traditional wire connection method is not easy to use mechanized automatic production because the wires are soft and their positions cannot be fixed at all and manual welding is required. However, through the plug-in installation method, since the plug-in terminal is a relatively solid component, the process of manual wire welding can be omitted. Therefore, mechanized production can replace manual operation, reducing production costs and greatly improving production efficiency.

[0012] Finally, the operating environment of smart water meters is usually relatively humid or water is unavoidable, and there are certain requirements for their waterproof performance. Therefore, certain waterproof sealing measures are usually adopted for circuit components in smart water meters. The most common one is to perform glue sealing on the circuit board to achieve waterproof treatment. In a large number of production practices, it is found that in the existing technology, glue is poured at the position of the wire. Since the wire is flexible, there is a possibility of swinging and shaking. This makes the circuit board prone to shaking at the wire during the process of glue pouring and the glue layer solidification, causing the glue layer to be torn. Even after the glue layer solidifies, the operator may shake the glue layer after manually touching the wire during the assembly process, thereby causing the glue layer to debond or produce gaps, etc., which in turn causes moisture to enter some electronic components through the gaps. The plug-in terminals used for plug-in connection in the utility model are fixed and not easy to shake, which greatly reduces the probability of damage to the glue layer, effectively improves the waterproof effect, and improves the yield rate.

[0013] Preferably, the actuator includes an actuator cover plate, the second circuit board is provided with a first plug-in terminal, and the first plug-in terminal passes through the actuator cover plate and is plugged into the first circuit board.

[0014] Preferably, the first circuit board is covered with a glue potting layer, and the glue potting layer covers the end of the first plug-in terminal.

[0015] Preferably, the smart water meter includes a module box, the actuator and control assembly are located in the module box, the module box is provided with a first inner cavity for accommodating the first circuit board and a second inner cavity for accommodating the actuator, and the actuator cover is located between the first inner cavity and the second inner cavity.

[0016] Preferably, an actuator box body is provided in the module box, the inner cavity of the actuator box body constitutes the second inner cavity, and the actuator box body and the module box are an integral structure or a separate structure; and / or, a circuit board accommodating box is provided in the module box, the inner cavity of the circuit board accommodating box constitutes the first inner cavity.

[0017] Preferably, a glue layer is poured into the first inner cavity, and the glue layer seals the first circuit board in the first inner cavity; and / or the actuator cover plate is sealed to the cavity wall of the second inner cavity.

[0018] Preferably, the glue potting layer surrounds at least the top and bottom of the first circuit board, and the lower glue potting layer is located below the first circuit board. The lower glue potting layer is also used for sealing between the actuator cover and the second inner cavity.

[0019] Preferably, the collector includes a third circuit board, the third circuit board includes a magnetic induction coil, the position of the magnetic induction coil matches the position of the dial rotor in the water meter body, and the third circuit board is plugged into the first circuit board; or, the collector is integrated on the first circuit board, and the position of the collector matches the position of the magnetic induction element in the water meter body.

[0020] Preferably, a battery assembly is further included, wherein the battery assembly includes a battery body, and the battery body is provided with a second plug-in terminal for plugging into the smart water meter, and the second plug-in terminal is plugged into the first circuit board or the second circuit board.

[0021] Preferably, the second plug-in terminal includes a conductive terminal fixed on the battery body and electrically connected to the smart water meter. The battery assembly also includes an insulating protective cover covering the plug-in terminal for protecting the plug-in terminal. The insulating protective cover is detachably connected to the battery body. When the battery body is plugged into the smart water meter, the insulating protective cover is removed from the plug-in terminal. After the plugging is completed, the battery assembly is electrically connected to the control assembly.

[0022] Preferably, the second plug-in terminal of the battery assembly includes at least a first conductive terminal and a second conductive terminal, the insulating protective cover includes a cover body and an isolation block provided below the cover body, and the first conductive terminal and the second conductive terminal are separated by the isolation block.

[0023] Preferably, the battery body of the battery assembly is provided with a first surrounding edge around the plug-in terminal, and the insulating protective cover covers the first surrounding edge.

[0024] Preferably, the plug-in terminals of the battery assembly include at least a first conductive terminal and a second conductive terminal, the insulating protective cover includes a cover body and an isolation block arranged under the cover body, the first conductive terminal and the second conductive terminal are separated by the isolation block, and the isolation block extends into the cavity formed by the first surrounding edge.

[0025] Preferably, the outer peripheral side of the isolation block of the battery assembly is sealed against the inner side wall of the first surrounding edge.

[0026] Preferably, the outer ring of the first surrounding edge of the battery assembly is further provided with a second surrounding edge.

[0027] Preferably, the first surrounding edge and the second surrounding edge of the battery assembly form an annular groove, and a rubber layer is provided at the bottom of the annular groove. When plugged into the smart water meter, the rubber layer abuts against the female end of the smart water meter to form a seal.

[0028] Preferably, the female plug-in end includes a third surrounding edge, which is inserted into the annular groove and abuts against the rubber layer.

[0029] Preferably, the insulating protective cover of the battery assembly is provided with a limiting protrusion embedded between the first surrounding edge and the second surrounding edge.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] FIG1 is an overall schematic diagram of a first embodiment of the present invention;

[0033] FIG2 is a schematic diagram of a collector and an actuator in Example 1 of the present utility model;

[0034] FIG3 is an explosion diagram of Example 1 of the present utility model;

[0035] FIG4 is a cross-sectional schematic diagram of the control assembly of the first embodiment of the present invention;

[0036] FIG5 is a schematic diagram of a battery assembly in Example 1 of the present invention;

[0037] FIG6 is a schematic diagram of the other side of the battery assembly in the first embodiment of the present invention;

[0038] FIG7 is an exploded schematic diagram of a battery assembly in Example 1 of the present invention;

[0039] FIG8 is a partial schematic diagram of a battery assembly in Example 1 of the present invention;

[0040] FIG9 is a schematic diagram of an insulating protective cover of a battery assembly in Example 1 of the present invention;

[0041] FIG10 is an enlarged cross-sectional view of the second plug terminal of the battery assembly and the female plug terminal of the smart water meter when they are connected in the first embodiment of the present invention.

[0042] FIG11 is an exploded view of the second embodiment of the present invention;

[0043] FIG12 is an explosion diagram of the third embodiment of the present invention. [Specific implementation method]

[0044] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0045] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0046] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or an interaction between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected to form a whole through a connecting structure. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0048] Example 1:

[0049] As shown in Figures 1 to 10, a smart water meter is shown. Figure 3 is an exploded schematic diagram of this embodiment. As shown in the figure, this embodiment is provided with a housing 7, a collector 14, an actuator and a control component. The collector 14 collects the metering signal in the smart water meter and is electrically connected to the control component. The control component is connected to the actuator and controls the actuator motor in the actuator to perform opening and closing actions. The control component includes a first circuit board 9 and a second circuit board 12. The second circuit board 12 is located inside the actuator, and the first circuit board 9 is located outside the actuator. The collector is connected to the first circuit board 9, and the first circuit board 9 and the second circuit board 12 are connected by plugging. In this embodiment, the first circuit board 9 and the second circuit board 12 are plugged through a first plug terminal 13. The first plug terminal 13 includes a plurality of pins. The first circuit board 9 and the second circuit board 12 are each provided with a small hole that cooperates with the plug terminal 13.

[0050] It should be noted that the plug-in connection referred to in this article does not mean that the finished product is non-detachable, but refers to the plug-in assembly of the first circuit board 9 and the second circuit board 12 during the production and assembly process. As for the final welding or other packaging of the first circuit board 9 and the second circuit board 12 after the assembly is completed, it does not fall under the constraints of "plug-in".

[0051] In this embodiment, the actuator includes an actuator cover 11. The upper portion of the actuator cover 11 represents the actuator exterior. A first circuit board 9 is located above the actuator cover 11, while the lower portion of the actuator cover 11 represents the actuator interior. A second circuit board 12 is located below the actuator cover 11. First plug-in terminals 13 are provided on the second circuit board 12, and a small hole is provided in the actuator cover 11 for the passage of the first plug-in terminals 13. The first circuit board 9 and the second circuit board 12 are connected via the first plug-in terminals 13. This design eliminates the need for wires, simplifies the internal structure, and facilitates installation and repair. It also eliminates the need for manual wire soldering, allowing for mechanized production instead of manual labor, reducing production costs and improving efficiency.

[0052] As shown in FIG4 , in order to improve the waterproof performance, in this embodiment, a glue layer 19 is preferably covered on the first circuit board 9. It should be noted that the glue layer 19 referred to here covers the first circuit board 9 and includes at least one of the upper, side, and lower parts surrounding the first circuit board 9. In this embodiment, the glue layer 19 preferably covers the upper and side parts of the first circuit board 9, especially covers the end of the first plug terminal 13. Since the first plug terminal 13 is not easy to shake, the glue layer 19 will not be damaged. Compared with the structure of using wire connection in the prior art, the wire is easy to shake when the glue is not solidified after the glue is poured, resulting in the glue layer 19 on the wire. There are cracks in the glue layer 19, which are easy to get in. Even after the glue layer 19 solidifies, the assemblers will easily touch the wires when assembling the semi-finished product with other components. After the wires are touched, there is a chance that the glue layer 19 will be shaken, causing the glue layer 19 to become debonded or produce gaps. However, this embodiment does not have a wire, but adopts a first plug-in terminal 13, and the glue layer 19 directly covers the end of the first plug-in terminal 13. Whether the glue layer 19 is solidifying or after solidification, the first plug-in terminal 13 is not exposed to the glue layer 19, and the operator is not easy to touch it. Therefore, the glue layer 19 is not easily damaged, the waterproof performance is better, and the yield rate during production is also higher.

[0053] This embodiment preferably includes a module box 16 for accommodating the actuator and control components. As shown in FIG3 , the actuator includes an actuator assembly 15 and an actuator box body 162. The actuator box body 162 and the actuator cover 11 form a second inner cavity 202. The actuator assembly 15 includes an actuator motor and a speed change gear set. The actuator assembly 15 is disposed in the second inner cavity 202. A circuit board container 10 is disposed above the actuator cover 11. The circuit board container 10 forms a first inner cavity 201. The first circuit board 9 is disposed in the first inner cavity 201. Glue is poured directly into the circuit board container 10 during glue pouring. After solidification, a glue layer is formed above and / or on the sides of the first circuit board 9. This design further enhances the waterproofing effect and reduces the probability of short circuits between circuit boards.

[0054] It should be noted that in this embodiment, the actuator housing 162 and the module housing 16 are preferably integrally formed. However, in other embodiments, the actuator housing and the module housing may be separate. Furthermore, in other embodiments, the circuit board housing may be omitted, and the first circuit board may be positioned directly above the actuator cover 11. In such an embodiment, the first inner cavity 201 is the space formed above the actuator cover 11. This embodiment will be described in detail in Example 3. All such embodiments fall within the scope of protection of the present utility model.

[0055] Figure 2 is a schematic diagram of the collector and actuator in this embodiment. As shown, the module box 16 is preferably convex in shape, with a side accommodating cavity 161 formed in the raised portion. The collector 14 is integrated into the portion of the first circuit board 9 located in the side accommodating cavity 161, corresponding to the magnetic sensing element within the water meter body. The collector 14 includes a Hall effect element. During operation, water flowing through the magnetic spiral metal sheet rotates, and the Hall effect element senses the signal, converting the pointer's rotations into pulses. Other components within the collector 14 analyze these pulses, ultimately deriving information such as water consumption and transmitting it to the control component, which then controls the actuator 15 to perform the corresponding operation. In daily life, many places still use mechanical water meters, also known as magnetic water meters. This design is compatible with these magnetic water meters, eliminating the need to replace the water meter body, saving costs, and expanding the market.

[0056] In this embodiment, the collector 14, actuator, and control assembly preferably form an integral module. These components are housed within a module box, and together with the module box 16, they form an integral module. As previously mentioned, nearly all electrical components within the entire module utilize plug-in connections, eliminating the need for wires within the module itself. The battery assembly 1 also utilizes a plug-in connection with the module, resulting in virtually no wires required for the entire smart water meter. This simplifies the internal structure, making installation and maintenance more convenient and improving product uniformity.

[0057] This embodiment preferably has a battery assembly 1 that serves as a power supply, as shown in Figures 5 to 9, which show the battery assembly 1 of this embodiment. The main structure includes a shell 101, a battery body 2, a capacitor 3 and a connecting plate 4 for connecting the battery body 2 and the capacitor 3. The capacitor 3 is arranged on one side of the connecting plate 4, and a second plug-in terminal is provided on the other side. The second plug-in terminal includes a first and a second conductive terminal 31, and is also provided with a detachable insulating protective cover 5. When the battery assembly 1 is connected to the water meter, the insulating protective cover 5 is removed; when the battery assembly 1 is not working, such as during transportation or storage, the insulating protective cover 5 is installed. With this design, the insulating protective cover 5 protects the first and second conductive terminals 31. First, during transportation of this embodiment, bumps and shaking may inevitably cause the first and second conductive terminals 31 to contact each other, or the second plug-in terminals to become connected by conductive objects. This embodiment prevents short circuits between the first and second conductive terminals 31, reducing the incidence of safety accidents and improving safety. Second, collisions during transportation may also damage the second plug-in terminals. With this embodiment, the insulating protective cover 5 can withstand a certain degree of impact, reducing the probability of damage to the second plug-in terminals and reducing costs. Furthermore, because this embodiment is located outside the meter body, it can be increased in size and accommodate different types and quantities of batteries to increase battery life. Compared to commercial smart water meters with built-in battery compartments, this embodiment is not affected by the size of the battery compartment in the water meter body. Finally, during transportation and long-term storage, prolonged exposure to air or moisture can cause the second plug-in terminals to rust. With the first and second conductive terminals 31, a certain degree of air and moisture insulation is provided, reducing the probability of rust on the second plug-in terminals.

[0058] In this embodiment, the insulating protective cover is presented as a cover structure. In other embodiments, the structure of the insulating protective cover is not limited to the cover structure, and can also be presented as a protective sleeve structure, for example, using two sleeves to be respectively sleeved on the first conductive terminal and the second conductive terminal.

[0059] In this embodiment, the first and second conductive terminals 31 are connected to the positive and negative electrodes of the battery body 2, respectively, and extend to the other side of the connection plate 4. A first surrounding edge 41 is provided around the first and second conductive terminals 31. This design allows the first surrounding edge 41 to protect the first and second conductive terminals 31, partially absorbing the force from external impacts. Preferably, the first surrounding edge 41 is higher than the first and second conductive terminals 31, and the insulating protective cover 51 covers the first surrounding edge 41. This design allows the first surrounding edge 41 to serve as a limiter when the insulating protective cover 51 is installed, preventing damage to the first and second conductive terminals 31 caused by excessive force during installation.

[0060] It should be noted that, in order to facilitate positioning during installation, the first surrounding edge 41 in this embodiment is rectangular, but in other embodiments it may also be circular, elliptical, or other shapes. These implementations all fall within the scope of protection of the present utility model.

[0061] As shown in FIG9 , the insulating protective cover 5 of this embodiment includes a cover body 51 and an isolation block 52 provided below the cover body 51. After the present embodiment is plugged into the smart water meter, the isolation block 52 enters the cavity formed by the first surrounding edge 41 and is provided between the first and second conductive terminals 31 to isolate the first and second conductive terminals 31. This design can prevent a short circuit between the first and second conductive terminals 31.

[0062] Preferably, the isolation block 52 in this embodiment is a solid plug that mates with the first peripheral edge 41. Two small holes 53 are also provided within the isolation block 52, which mate with the first and second conductive terminals 31. After the insulating protective cover 5 is installed, the isolation block 52 extends into the cavity formed by the first peripheral edge 41, while the first and second conductive terminals 31 extend into the small holes 53. This design firstly separates the first and second conductive terminals 31 by the insulating material of the isolation block 52, preventing them from contacting each other and short-circuiting. Secondly, after the isolation block 52 is inserted into the first peripheral edge 41, the first peripheral edge 41 can partially offset external impact forces, preventing the insulating protective cover 5 from easily shaking. This prevents the first and second conductive terminals 31 from deforming due to impact.

[0063] It should be noted that the isolation block 52 can be a partition, or two hollow cylinders that match the first and second conductive terminals 31 to separate the first and second conductive terminals 31. These embodiments all fall within the scope of protection of the present invention.

[0064] In this embodiment, the outer peripheral side of the isolation block 52 is preferably sealed against the inner side wall of the first surrounding edge 41, and two anti-slip protrusions 521 are provided on the peripheral side of the isolation block 52. With this design, the two anti-slip protrusions 521 can increase the friction between the isolation block 52 and the first surrounding edge 41, making it difficult for the insulating protective cover 5 to fall off, and having a good sealing effect to prevent moisture and air from entering.

[0065] It should be noted that, in order to make the installation of the insulating protective cover 5 more stable, this embodiment adopts a structure in which the insulating protective cover 5 extends into the interior of the first surrounding edge 41. In other embodiments, the installation of the insulating protective cover 5 may not rely on the first surrounding edge 41, or the first surrounding edge 41 may not be provided. These embodiments all fall within the scope of protection of the present utility model.

[0066] In this embodiment, a guide surface 421 is preferably provided on the inner side of the first surrounding edge 41 , and the guide surface 421 is inclined toward the inside of the first surrounding edge 41 . This design makes it easier to align the insulating protective cover 5 during installation.

[0067] This embodiment further includes a second peripheral edge 42 outside the first peripheral edge 41. This second peripheral edge 42 is also rectangular. This design not only protects the first peripheral edge 41 but also forms an annular groove 43 between the first and second peripheral edges 41, 42. The design of the annular groove 43 is equivalent to forming two waterproof layers between the first and second peripheral edges 41, 42. Since water is inevitably present in the installation environment of a smart water meter, the multiple waterproof layers prevent water from entering the first and second conductive terminals 31 from the outside. The annular groove 43 also serves as a guide and limiter during the insertion of this embodiment into the smart water meter.

[0068] Of course, in other embodiments, the shape of the second surrounding edge 42 may also be other shapes that match the first surrounding edge, such as a circle, an ellipse, etc. These implementations all fall within the scope of protection of the present utility model.

[0069] As shown in Figure 10 , in this embodiment, a rubber coating 44 is preferably provided at the bottom of the annular groove 43. When this embodiment is plugged into a smart water meter, the female connector of the smart water meter extends into the annular groove 43 and abuts against the rubber coating 44 to form a seal. With this design, after the connection is complete, while the first surrounding edges 42 and 41 form two waterproof measures, the rubber coating 44 and the female connector further enhance the seal between the two waterproof measures, creating a more stable waterproof effect. Therefore, when this embodiment is in operation, it can achieve a waterproof effect, reducing the probability of accidents during operation and improving safety.

[0070] A limiting protrusion 511 is provided on the cover plate 51 of the insulating protective cover 5. The limiting protrusion 511 cooperates with the annular groove 43. After the insulating protective cover 5 is covered, the limiting protrusion 511 can be embedded in the annular groove 43. Such a design can limit the insulating protective cover 5, reduce the insulating protective cover from falling off due to shaking, rotation, etc., and prevent damage to the conductive terminal 31.

[0071] Figure 10 is an enlarged cross-sectional view of the capacitor 3 of the battery assembly 1 and the female connector of the smart water meter when they are plugged in in this embodiment. In order to ensure the stability of the plug-in structure, the battery assembly 1 in this embodiment is provided with an annular edge on the periphery of the second plug-in terminal, and the annular edge includes a first edge 41 and a second edge 42 surrounding the outer circle of the first edge 41. An annular groove 43 is formed between the first edge 41 and the second edge 42, and a rubber layer 44 is provided at the bottom of the annular groove 43. The female connector of the smart water meter includes a third edge 6, and the third edge 6 cooperates with the annular groove 43. When the battery assembly 1 and the smart water meter are plugged in, the third edge 6 is inserted into the annular groove, and the top of the third edge 6 is against the rubber layer 44 to form a sealing structure. If external water wants to enter, it needs to pass through the second surround 42, the third surround 6, and the first surround 41 to contact the first and second conductive terminals 31. It has excellent waterproof performance and improves safety. Secondly, when connecting the battery assembly 1 and this embodiment, the operation of inserting the third surround 6 into the annular groove 43 is conducive to limiting, and the battery assembly 1 can be easily inserted. The overall stability of the plug-in structure is also higher.

[0072] It should be noted that the connection between the battery assembly 1 and the smart water meter in this embodiment can also be independent of the annular groove 43 formed by the first and second surrounding edges 41, 42. For example, a single annular surrounding edge can be provided around the outer rings of the first and second conductive terminals 31. The bottom of the cavity formed by the annular surrounding edge is provided with a rubber layer 44, which abuts against the third surrounding edge 6. These embodiments all fall within the scope of protection of the present invention.

[0073] Example 2:

[0074] Figure 11 shows the second embodiment. Unlike the first embodiment, this embodiment is applicable to non-magnetic water meters. The collector 14 in this embodiment is a third circuit board 18. The third circuit board 18 is located at the bottom of the side accommodating cavity 161, close to the water meter body, and above the dial rotor in the water meter. The third circuit board 18 is plugged into the first circuit board 9 through the third plug terminal 141. The third circuit board 18 includes an inductor, a capacitor, and an LC oscillation sensor. This technology is already fully disclosed in the prior art and will not be described in detail in this specification. The third circuit board 18 obtains information such as water consumption and flow rate and transmits it to the control component, which controls the execution component 15 to perform corresponding operations. This design can adapt to more water meters on the market and has the advantages of high functionality and low power consumption.

[0075] Example 3:

[0076] Figure 12 shows Example 3. Unlike Example 1, this embodiment does not have a circuit board accommodating box. The interior of the actuator box body 162 constitutes a second inner cavity 202, and the second circuit board 12 and the actuator assembly are arranged in the second inner cavity 202. The interior of the module box 16, in the space above the actuator cover 11, constitutes a first inner cavity 201. During assembly, the second circuit board 12 is first assembled in the second inner cavity 202, and a step surface is provided at the opening of the second inner cavity 202. Then, the actuator cover 11 is installed on the step surface of the opening of the second inner cavity 202. Then, the first circuit board 9 is placed in the first inner cavity 201 and plugged into the first plug-in terminal 13 extending from the second circuit board 12. Then, the first inner cavity 201 is filled by glue pouring, so that the first circuit board 9 is sealed in the first inner cavity 201.

[0077] In addition, in this embodiment, a certain gap is left between the side of the first circuit board 9 and the side wall of the first inner cavity 201, and the glue layer can also flow into the bottom of the first circuit board 9 through the gap, so that the top, side and bottom of the first circuit board 9 are surrounded by the glue layer, and the first circuit board 9 is fully waterproof. The glue layer located below the first circuit board 9 is the lower glue layer. Since the actuator cover 11 is located below the first circuit board 9 in this embodiment, the lower glue layer can also cover the actuator cover 11, which is equivalent to sealing the assembly gap between the actuator cover 11 and the second inner cavity 202. Therefore, this embodiment can simultaneously seal the first circuit board 9 and the first inner cavity, and the actuator cover 11 and the second inner cavity 202 with glue in a one-time glue-filling manner, which has higher assembly efficiency.

[0078] It should be noted that allowing the glue layer to flow to the bottom of the first circuit board 9 is not limited to flowing from the side of the first circuit board 9 to the bottom. It is also possible to set certain through holes on the first circuit board 9 to allow the glue layer to flow from the through holes to the bottom of the first circuit board 9.

[0079] Of course, in other embodiments, the assembly method is not limited to the one-time glue filling method of this embodiment. In other methods, a two-time glue filling and sealing method can also be adopted, that is, the actuator cover 11 and the second inner cavity are first sealed with glue for the first time, and then the first circuit board 9 and the first inner cavity 201 are sealed with glue.

[0080] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. An intelligent water meter, comprising a collector, an actuator and a control component. The collector collects the measurement signal in the intelligent water meter and is electrically connected to the control component. The control component is connected to the actuator and controls the execution motor in the actuator to perform opening and closing actions. It is characterized in that, The control component includes a first circuit board and a second circuit board. The second circuit board is located inside the actuator, and the first circuit board is located outside the actuator. The collector is connected to the first circuit board, and the first circuit board and the second circuit board are connected by plugging.

2. The intelligent water meter according to claim 1, characterized in that: The actuator includes an actuator cover plate. A first plugging terminal is provided on the second circuit board, and the first plugging terminal passes through the actuator cover plate and is plugged with the first circuit board.

3. The intelligent water meter according to claim 2, characterized in that: A potting layer is covered on the first circuit board, and the potting layer covers the end of the first plugging terminal.

4. The intelligent water meter according to claim 2, characterized in that: The intelligent water meter includes a module box. The actuator and the control component are located in the module box. A first inner cavity for accommodating the first circuit board and a second inner cavity for accommodating the actuator are provided in the module box. The actuator cover plate is located between the first inner cavity and the second inner cavity.

5. The intelligent water meter according to claim 3 or 4, characterized in that: The intelligent water meter includes a module box. The actuator and the control component are located in the module box. An actuator box body is provided in the module box, and the inner cavity of the actuator box body forms the second inner cavity. The actuator box body and the module box are of an integral structure or a split structure; and / or, the intelligent water meter includes a module box. The actuator and the control component are located in the module box. A circuit board accommodating box is provided in the module box, and the inner cavity of the circuit board accommodating box forms the first inner cavity.

6. The intelligent water meter according to claim 5, wherein: A potting layer is poured in the first inner cavity, and the potting layer seals the first circuit board in the first inner cavity; and / or, the actuator cover plate is hermetically connected to the wall of the second inner cavity.

7. The intelligent water meter according to claim 6, wherein: The potting layer at least surrounds the upper and lower sides of the first circuit board. The potting layer located below the first circuit board is the lower potting layer, and the lower potting layer is also used for the seal between the actuator cover plate and the second inner cavity.

8. The intelligent water meter according to claim 1, characterized in that: The collector includes a third circuit board. The third circuit board includes a magnetic induction coil. The position of the magnetic induction coil matches the position of the dial rotor in the water meter body. The third circuit board is plugged with the first circuit board; or, the collector is integrated on the first circuit board, and the position of the collector matches the position of the magnetic induction element in the water meter body.

9. The intelligent water meter according to claim 1 or 2 or 3 or 4 or 6 or 7 or 8, characterized in that: It further includes a battery component. The battery component includes a battery body. The battery body is provided with a second plugging terminal for plugging into the intelligent water meter, and the second plugging terminal is plugged with the first circuit board or the second circuit board.

10. The intelligent water meter according to claim 9, characterized in that: The second plugging terminal includes a conductive terminal fixedly provided on the battery body and electrically connected to the intelligent water meter in a matching manner. The battery component further includes an insulating protection cover covering the plugging terminal for protecting the plugging terminal. The insulating protection cover is detachably connected to the battery body. When the battery body is plugged into the intelligent water meter, the insulating protection cover is removed from the plugging terminal. After the plugging is completed, the battery component is electrically connected to the control component.

11. The intelligent water meter according to claim 10, characterized in that: The second plugging terminal of the battery component at least includes a first conductive terminal and a second conductive terminal. The insulating protection cover includes a cover body and a separating block provided below the cover body. The first conductive terminal and the second conductive terminal are separated by the separating block.

12. The intelligent water meter according to claim 10, wherein: The battery body of the battery component is provided with a first peripheral edge around the plugging terminal, and the insulating protection cover covers the first peripheral edge.

13. The intelligent water meter according to claim 12, characterized in that: The plug-in terminals of the battery assembly at least include a first conductive terminal and a second conductive terminal. The insulating protective cover includes a cover body and an insulating block provided below the cover body. The first conductive terminal and the second conductive terminal are separated by the insulating block, and the insulating block extends into the cavity formed by the first peripheral edge.

14. The intelligent water meter according to claim 12, characterized in that: The outer peripheral side of the insulating block of the battery assembly abuts and seals against the inner side wall of the first peripheral edge.

15. The intelligent water meter according to claim 12, characterized in that: A second peripheral edge is further provided on the outer ring of the first peripheral edge of the battery assembly.

16. The intelligent water meter according to claim 15, characterized in that: The first peripheral edge and the second peripheral edge of the battery assembly form an annular groove, and an adhesive layer is provided at the bottom of the annular groove. When plugging into the intelligent water meter, the adhesive layer abuts against the plugging female end of the intelligent water meter to form a seal.

17. The intelligent water meter according to claim 16, characterized in that: The plugging female end includes a third peripheral edge, and the third peripheral edge is inserted into the annular groove and abuts against the adhesive layer.

18. The intelligent water meter according to claim 15, wherein: The insulating protective cover of the battery assembly is provided with a limiting protrusion embedded between the first peripheral edge and the second peripheral edge.

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