Intelligent water meter

Abstract

The utility model discloses an intelligent water meter, which belongs to the field of intelligent water meters and comprises a collector, an actuator and a control component, the collector collects metering signals in the intelligent water meter and is electrically connected with the control component, and the control component is connected with the actuator and controls an execution motor in the actuator to execute opening and closing actions. The control assembly comprises a first circuit board and a second circuit board, the second circuit board is located in the actuator, the first circuit board is located outside the actuator, the collector is connected with the first circuit board, and the first circuit board is connected with the second circuit board in an inserted mode. The LED lamp has the advantages that the internal structural design is optimized, the circuit boards are connected in an inserting mode, wires are almost not arranged, installation and maintenance are convenient, manual wire welding is not needed, mechanical production can be achieved, the yield is high, and the waterproof performance is good.

Description

[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 the advancement of technology, smart water meters have begun to replace traditional water meters. The so-called smart water meters are to add a collector to the traditional water meter. The collector can collect the metering signal in the metering movement, and then record and store it in the control circuit. The control circuit will transmit the data to the server or the operator's mobile terminal through the communication module to understand the metering data in real time, eliminating the trouble of manual on-site meter reading. The applicant has also filed patent applications such as CN213397238U and CN217786269U to improve the smart water meter.

[0003] There are many components in a smart water meter, including actuators, circuit boards, battery components, etc. These components are usually connected by wires, which makes the internal structure of the smart water meter more complicated, and the assembly and repair are more cumbersome. In addition, the waterproof performance is poor and short circuits and damages are prone to occur. [Contents of the utility model]

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an intelligent water meter that can be easily produced and assembled.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides an intelligent water meter, comprising a collector, an actuator and a control component, wherein 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 an actuator motor in the actuator to perform an opening and closing action, the control component comprises a first circuit board and a second circuit board, 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 and the second circuit board are connected by plugging.

[0007] The beneficial effects of adopting the utility model are:

[0008] The utility model uses an insulating protective cover to protect the second plug-in terminal. Such a design has the advantages of:

[0009] Firstly, the first circuit board located inside the actuator and the second circuit board located outside the actuator of the utility model are connected by plugging, and no wires are provided between the two, so that the overall structure is simpler and it is convenient to replace parts during installation and repair.

[0010] Secondly, since the line connection between the first circuit board and the second circuit board of the traditional smart water meter usually includes multiple connecting wires, and manual welding usually requires checking the wire sequence or wire color one by one for manual distinction, there is a certain probability that wires of different sequences or different colors will be welded incorrectly in this process, resulting in poor yield rate in the later stage. However, through the plug-in method, the sequence of each wire is fixed, and there is no need for manual one-to-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 wire is soft and its position 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 welding of the wire can be omitted, so mechanized production can replace manual operation, reducing production costs and greatly improving production efficiency.

[0011] 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 prior art, glue is poured at the position of the wire. Since the wire is flexible, there is a possibility of swinging and shaking. This makes it easy for the circuit board to shake at the wire during the process of glue pouring and glue layer solidification, causing the glue layer to be torn. Even after the glue layer is solidified, the operator may shake the glue layer after touching the wire manually 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 terminal used for plug-in connection in the utility model is 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 at the same time.

[0012] Preferably, the actuator comprises an actuator cover plate, and 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.

[0013] 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.

[0014] Preferably, the smart water meter includes a module box, in which the actuator and control assembly are located. 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.

[0015] 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.

[0016] Preferably, a glue potting layer is poured into the first inner cavity, and the glue potting layer seals the first circuit board in the first inner cavity; and / or the actuator cover plate is sealed and connected to the cavity wall of the second inner cavity.

[0017] Preferably, the glue potting layer at least surrounds 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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 arranged below the cover body, and the first conductive terminal and the second conductive terminal are separated by the isolation block.

[0022] 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.

[0023] Preferably, the 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 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.

[0024] 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.

[0025] Preferably, the outer circle of the first surrounding edge of the battery assembly is also provided with a second surrounding edge.

[0026] 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 a smart water meter, the rubber layer abuts against the female plug-in end of the smart water meter to form a seal.

[0027] Preferably, the plug-in female end includes a third surrounding edge, which is inserted into the annular groove and abuts against the rubber coating layer.

[0028] 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.

[0029] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] Figure 1 It is an overall schematic diagram of the first embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of a collector and an actuator in Embodiment 1 of the present utility model;

[0033] Figure 3 This is an explosion diagram of the first embodiment of the utility model;

[0034] Figure 4 It is a cross-sectional schematic diagram of a control assembly of Embodiment 1 of the present utility model;

[0035] Figure 5 This is a schematic diagram of a battery assembly in Embodiment 1 of the present utility model;

[0036] Figure 6 It is a schematic diagram of the other side of the battery assembly in the first embodiment of the utility model;

[0037] Figure 7 This is a schematic diagram of an explosion of a battery assembly in Embodiment 1 of the present utility model;

[0038] Figure 8 It is a partial schematic diagram of a battery assembly in the first embodiment of the utility model;

[0039] Fig. 9 This is a schematic diagram of the insulating protective cover of the battery assembly in the first embodiment of the utility model;

[0040] Fig.10 It 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 utility model.

[0041] Fig.11 This is an exploded schematic diagram of the second embodiment of the utility model;

[0042] Fig.12 It is an explosion diagram of the third embodiment of the present utility model. [Specific implementation method]

[0043] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0044] 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 referred device or element must have a specific direction, be constructed and operate in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0045] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0046] In the present utility model, 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 utility model. 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.

[0047] Embodiment 1:

[0048] like Figures 1 to 10 As shown, a smart water meter is shown. Figure 3 This is an exploded schematic diagram of the present embodiment. As shown in the figure, the present embodiment is provided with a housing 7, a collector 14, an actuator and a control component. The collector 14 collects metering signals 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 in 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.

[0049] 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 constitute a constraint on "plug-in".

[0050] In this embodiment, the actuator includes an actuator cover 11, the upper part of the actuator cover 11 is the outside of the actuator, the first circuit board 9 is arranged above the actuator cover 11, the lower part of the actuator cover 11 is the inside of the actuator, the second circuit board 12 is arranged below the actuator cover 11, the second circuit board 12 is provided with a first plug-in terminal 13, the actuator cover 11 is provided with a small hole for the first plug-in terminal 13 to pass through, and the first circuit board 9 and the second circuit board 12 are plugged through the first plug-in terminal 13. Such a design does not use wires, making the internal structure simpler, easy to install and repair, and eliminating the process of manual welding of wires. Therefore, mechanized production can replace manual operation, reducing production costs and improving production efficiency.

[0051] like Figure 4 As shown, in order to improve the waterproof performance, in this embodiment, the first circuit board 9 is preferably covered with a glue potting layer 19. It should be noted that the glue potting 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 potting 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 potting 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 potting, resulting in the glue potting layer 19 at the wire. Water is easy to enter the cracks. Even after the glue layer 19 solidifies, the assemblers may easily touch the wires when assembling the semi-finished products 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 uses a first plug-in terminal 13, and the glue layer 19 directly covers the end of the first plug-in terminal 13. Whether it is during the solidification process of the glue layer 19 or after solidification, the first plug-in terminal 13 is not exposed to the glue layer 19, and it is not easy for operators 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.

[0052] This embodiment is preferably provided with a module box 16 for placing the actuator and control components, such as Figure 3As shown, the actuator includes an actuator assembly 15 and an actuator box 162, wherein the actuator box 162 and the actuator cover 11 form a second inner cavity 202, wherein the actuator assembly 15 includes an actuator motor and a speed gear set, wherein the actuator assembly 15 is disposed in the second inner cavity 202, wherein a circuit board receiving box 10 is disposed above the actuator cover 11, wherein the circuit board receiving box 10 forms a first inner cavity 201, wherein the first circuit board 9 is disposed in the first inner cavity 201, wherein the glue is directly poured into the circuit board receiving box 10, and after solidification, a glue pouring layer is formed above and / or on the side of the first circuit board 9. This design further enhances the waterproof effect and reduces the probability of short circuits between circuit boards.

[0053] It should be noted that in this embodiment, the actuator box body 162 and the module box 16 are preferably integrated. Of course, in other embodiments, the actuator box body and the module box can be separated independently. In addition, in other embodiments, no circuit board accommodating box may be provided, and the first circuit board may be directly provided above the actuator cover plate 11. In such an embodiment, the first inner cavity 201 is the space formed above the actuator cover plate 11. This embodiment will be described in detail in the third embodiment. All embodiments fall within the protection scope of the present utility model.

[0054] Figure 2 It is a schematic diagram of the collector and the actuator in this embodiment. As shown in the figure, the module box 16 is preferably in a "convex" shape, and the convex part is provided with a side accommodating chamber 161. The collector 14 is integrated on the part of the first circuit board 9 located in the side accommodating chamber 161, and the position corresponds to the magnetic sensing element in the water meter body. The collector 14 includes a Hall element. When the embodiment is working, the water flow rotates through the spiral metal sheet with magnetism, and the Hall element can sense the signal, and the number of rotations of the pointer is converted into the number of pulses. The other components in the collector 14 analyze the number of pulses, and finally obtain the information such as water consumption, and transmit it to the control component, which controls the actuator 15 to perform corresponding operations. In daily life, many places still use mechanical water meters, that is, magnetic water meters. Such a design can be compatible with magnetic water meters, eliminating the trouble of replacing the water meter body, saving costs, and expanding the market.

[0055] In this embodiment, it is preferred that the collector 14, the actuator, and the control assembly form an integral module together. In this embodiment, the collector 14, the actuator, and the control assembly are arranged together in the module box, and these components and the module box 16 together form an integral module. As described above, in this embodiment, almost all the electrical components inside the entire integral module are connected by plug-in connection, so that the integral module itself is almost not connected by wires, and the battery assembly 1 and the integral module are also connected by plug-in connection, so the entire smart water meter is almost not connected by wires as a whole. The internal structure is simplified, making this embodiment more convenient during installation and maintenance, and improving the uniformity of the product.

[0056] This embodiment is preferably provided with a battery assembly 1 that serves as a power supply, such as Figures 5 to 9 As shown, the battery assembly 1 of this embodiment is shown, and 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 a detachable insulating protective cover 5 is also provided. 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 such a design, the insulating protective cover 5 can protect the first and second conductive terminals 31. First, during the transportation of this embodiment, it is inevitable that the first and second conductive terminals 31 may contact each other due to bumps and shaking, or the second plug terminals may be connected by conductive objects. This embodiment can prevent the first and second conductive terminals 31 from short-circuiting, reduce the incidence of safety accidents, and improve safety. Secondly, the collision during transportation may also cause damage to the second plug terminal. After using this embodiment, the insulating protective cover 5 can resist a certain degree of impact force, reduce the probability of damage to the second plug terminal, and reduce costs. At the same time, since this embodiment is arranged outside the meter body, it can increase the size of this embodiment itself and install batteries of different models and quantities to increase the battery life. Compared with the smart water meter with built-in battery slot on the market, it is not affected by the size of the battery slot of the water meter body. Finally, during transportation and long-term storage, long-term contact with air or moisture will cause the second plug terminal to rust. After using the first and second conductive terminals 31, it can play a role in isolating air and moisture to a certain extent, reducing the probability of rusting the second plug terminal.

[0057] In this embodiment, the insulating protective cover is presented as a cover structure. In other implementations, 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.

[0058] In this embodiment, the first and second conductive terminals 31 are respectively connected to the positive and negative electrodes of the battery body 2 and extend to the other side of the connection plate 4. A first peripheral edge 41 is provided around the first and second conductive terminals 31. With such a design, the first peripheral edge 41 can protect the first and second conductive terminals 31 and can resist a part of the force when impacted by the outside world. Preferably, the first peripheral edge 41 is higher than the first and second conductive terminals 31, and the insulating protective cover 51 covers the first peripheral edge 41. With such a design, the first peripheral edge 41 can play a limiting function when the insulating protective cover 51 is installed, preventing the first and second conductive terminals 31 from being damaged due to excessive force during installation.

[0059] It should be noted that, in order to facilitate positioning during installation, the first surrounding edge 41 in this embodiment is rectangular, and of course in other embodiments it may also be circular, elliptical or other shapes. These implementations all fall within the protection scope of the present utility model.

[0060] like Fig. 9 As shown, the insulating protective cover 5 of this embodiment includes a cover body 51 and an isolation block 52 arranged under the cover body 51. After the present embodiment and the smart water meter are plugged in, the isolation block 52 enters the cavity formed by the first surrounding edge 41 and is arranged between the first and second conductive terminals 31 to isolate the first and second conductive terminals 31. Such a design can prevent a short circuit between the first and second conductive terminals 31.

[0061] Preferably, the isolation block 52 in this embodiment is a solid plug matched with the first surrounding edge 41, and two small holes 53 are provided inside the isolation block 52, and the small holes 53 match with the first and second conductive terminals 31. After the insulating protective cover 5 is covered, the isolation block 52 extends into the cavity formed by the first surrounding edge 41, and the first and second conductive terminals 31 extend into the small holes 53. With such a design, firstly, the first and second conductive terminals 31 are separated by the insulating material of the isolation block 52, so as to avoid the first and second conductive terminals 31 contacting each other and short-circuiting; secondly, after the isolation block 52 is extended into the first surrounding edge 41, the first surrounding edge 41 can offset a part of the external impact force, so that the insulating protective cover 5 will not easily shake, so as to prevent the first and second conductive terminals 31 from being deformed due to the impact.

[0062] 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, and play the role of separating the first and second conductive terminals 31. These implementations all fall within the protection scope of the utility model.

[0063] 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 protection cover 5 to fall off, and having a good sealing effect to prevent moisture and air from entering.

[0064] It should be noted that, in order to make the insulating protective cover 5 more stably installed, the present embodiment adopts a structure in which the insulating protective cover 5 extends into 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 implementations all fall within the protection scope of the present utility model.

[0065] 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 . Such a design makes it easier to align the insulating protection cover 5 during installation.

[0066] In this embodiment, a second peripheral edge 42 is also provided on the outer circle of the first peripheral edge 41. The second peripheral edge 42 is also rectangular. Such a design can, firstly, protect the first peripheral edge 41. Secondly, the first peripheral edge 41 and the second peripheral edge 42 form an annular groove 43. The design of the annular groove 43 is equivalent to forming two waterproof layers between the first peripheral edge 41 and the second peripheral edge 42. Due to the installation environment of the smart water meter, there will inevitably be water. The design of multiple waterproof layers can prevent water from entering the first and second conductive terminals 31 from the outside. At the same time, the annular groove 43 plays a guiding and limiting role in the plugging process between the present embodiment and the smart water meter.

[0067] 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 protection scope of the present utility model.

[0068] like Fig.10 As shown, as a preference, in this embodiment, a rubber coating layer 44 is provided at the bottom of the annular groove 43. When this embodiment is plugged into the smart water meter, the female end of the smart water meter extends into the annular groove 43 and abuts against the rubber coating layer 44 to form a seal. With such a design, after the plugging is completed, on the premise that the first surrounding edge 42 and the first surrounding edge 41 form two waterproof measures, the rubber coating layer 44 and the female end of the plug further increase the sealing between the two waterproof measures to form a more stable waterproof effect. Therefore, in the working state of this embodiment, it can play a waterproof role, reduce the probability of accidents in the operation of this embodiment, and improve safety.

[0069] A limiting protrusion 511 is provided on the cover plate 51 of the insulating protection cover 5, and the limiting protrusion 511 cooperates with the annular groove 43. After the insulating protection cover 5 is covered, the limiting protrusion 511 can be embedded in the annular groove 43. Such a design can play a role in limiting the insulating protection cover 5, reduce the insulating protection cover from falling off due to shaking, rotation, etc., and prevent damage to the conductive terminal 31.

[0070] Fig.10 It is an enlarged cross-sectional view of the capacitor 3 of the battery assembly 1 and the female plug-in end of the smart water meter when 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 rim on the periphery of the second plug-in terminal, and the annular rim includes a first rim 41 and a second rim 42 surrounding the outer circle of the first rim 41. An annular groove 43 is formed between the first rim 41 and the second rim 42. A rubber layer 44 is provided at the bottom of the annular groove 43. The female plug-in end of the smart water meter includes a third rim 6, and the third rim 6 and the annular groove 43 cooperate with each other. When the battery assembly 1 and the smart water meter are plugged in, the third rim 6 is inserted into the annular groove, and the top of the third rim 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 enclosure 42, the third enclosure 6, and the first enclosure 41 to contact the first and second conductive terminals 31. The waterproof performance is excellent, which improves safety. Secondly, when connecting the battery assembly 1 and the present embodiment, the operation of inserting the third enclosure 6 into the annular groove 43 is conducive to limiting, and the battery assembly 1 can be easily inserted, and the overall stability of the plug-in structure is also higher.

[0071] It should be noted that the connection between the battery assembly 1 and the smart water meter in this embodiment may not rely on the annular groove 43 formed by the first surrounding edge 41 and the second surrounding edge 42. For example, a single annular surrounding edge is provided on the outer ring of the first and second conductive terminals 31, and a rubber coating layer 44 is provided at the bottom of the chamber formed by the annular surrounding edge, and the rubber coating layer 44 abuts against the third surrounding edge 6. These implementations all fall within the protection scope of the present utility model.

[0072] Embodiment 2:

[0073] Fig.11The second embodiment is shown. Different from the first embodiment, this embodiment is applicable to non-magnetic water meters. The collector 14 in this embodiment is a third circuit board 18, which is arranged at the bottom of the side accommodating chamber 161, close to the water meter body, and located 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 has been 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. With such a design, more water meters on the market can be adapted, with the advantages of high functionality and low power consumption.

[0074] Embodiment three:

[0075] Fig.12 The third embodiment is shown. Unlike the first embodiment, this embodiment does not have a circuit board accommodating box. The interior of the actuator box body 162 constitutes a second inner cavity 202. The second circuit board 12 and the actuator assembly are arranged in the second inner cavity 202, and the interior of the module box 16 constitutes a first inner cavity 201 in the space above the actuator cover 11. 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 with 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.

[0076] In addition, in the present 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 potting 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 potting layer, and the first circuit board 9 is fully waterproofed. The glue potting layer located below the first circuit board 9 is the lower glue potting layer. Since the actuator cover 11 is located below the first circuit board 9 in the present embodiment, the lower glue potting layer can just 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, the present 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 in a one-time glue potting manner, which has higher assembly efficiency.

[0077] It should be noted that allowing the glue filling 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. Certain through holes can also be set on the first circuit board 9 to allow the glue filling layer to flow from the through holes to the bottom of the first circuit board 9.

[0078] Of course, in other implementations, the assembly method is not limited to the one-time glue pouring method of the present embodiment. In other methods, a two-time glue pouring sealing method can also be adopted, that is, the actuator cover plate 11 and the second inner cavity are first sealed with glue, and then the first circuit board 9 and the first inner cavity 201 are sealed with glue.

[0079] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A smart water meter, comprising a collector, an actuator and a control component, wherein the collector collects metering signals in the smart water meter and is electrically connected to the control component, and the control component is connected to the actuator and controls the actuator motor in the actuator to perform opening and closing actions, 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, 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 smart water meter according to claim 1, characterized in that: The actuator comprises an actuator cover plate, and 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.

3. The smart water meter according to claim 2, characterized in that: 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.

4. The smart water meter according to claim 2, characterized in that: The smart water meter includes a module box, in which the actuator and control assembly are located. 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.

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

6. The smart water meter according to claim 5, characterized in that: The first inner cavity is filled with a glue layer, and the glue layer seals the first circuit board in the first inner cavity; and / or the actuator cover plate is sealed and connected to the cavity wall of the second inner cavity.

7. The smart water meter according to claim 6, characterized in that: The glue potting layer at least surrounds 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.

8. The smart 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, 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.

9. The smart water meter according to claim 1 or 2 or 3 or 4 or 6 or 7 or 8, characterized in that: It also includes a battery assembly, which includes a battery body. 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.

10. The smart water meter according to claim 9, characterized in that: 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 plug-in is completed, the battery assembly is electrically connected to the control assembly.

11. The smart water meter according to claim 10, characterized in that: 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 arranged below the cover body. The first conductive terminal and the second conductive terminal are separated by the isolation block.

12. The smart water meter according to claim 10, characterized in that: 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.

13. The smart water meter according to claim 12, characterized in that: The 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 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.

14. The smart water meter according to claim 12, characterized in that: The outer peripheral side of the isolation block of the battery assembly is sealed against the inner side wall of the first surrounding edge.

15. The smart water meter according to claim 12, characterized in that: The outer circle of the first surrounding edge of the battery assembly is also provided with a second surrounding edge.

16. The smart water meter according to claim 15, characterized in that: 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 plug-in female end of the smart water meter to form a seal.

17. The smart water meter according to claim 16, characterized in that: The plug-in female end comprises a third surrounding edge, and the third surrounding edge is inserted into the annular groove and abuts against the rubber coating layer.

18. The smart water meter according to claim 15, characterized in that: 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.

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