CN116046084A - Self-driven intelligent water meter - Google Patents

Abstract

The application relates to the technical field of meters, in particular to a self-driven intelligent water meter. Comprising the following steps: the power generation device comprises a shell, a power unit, a power generation unit, a sensing unit, a power management unit and a communication unit, wherein the shell is provided with a fluid channel and a containing cavity which are communicated with each other, one part of the power unit is located in the fluid channel, the other part of the power unit extends towards the containing cavity, liquid in the fluid channel is used for driving the power unit, the power generation unit and the sensing unit are both arranged in the containing cavity, the power generation unit is connected with the power unit in a transmission mode, the sensing unit is connected with the power unit in a transmission mode, the power management unit is arranged in the containing cavity and connected with the power generation unit, the communication unit is arranged in the containing cavity and connected with the power management unit, and the communication unit is further used for receiving sensing signals generated by the sensing unit. The self-driven intelligent water meter can reduce energy consumption while detecting liquid flow.

Description

Self-driving Smart Water Meter

technical field

The present application relates to the technical field of meters, in particular to a self-driving smart water meter.

Background technique

Fluid flow monitoring is of great practical significance for industrial production, daily life and fluid transportation. Intelligent monitoring sensors are widely used in various pipe networks, such as: urban water supply, agricultural irrigation, industrial transportation, sewage discharge and oil extraction and other fields. The most commonly used traditional flow monitoring sensors are mainly mechanical sensors, and with the introduction of the concept of "smart city", the field of smart sensors is gradually emerging.

The basic purpose of smart sensors is to accurately monitor and record flow information. Therefore, improving the monitoring accuracy is the top priority for improving the level of smart manufacturing and promoting the development of the sensor industry. The instruments used to detect liquids in the prior art require continuous power supply from an external power source, or regular replacement of lithium batteries, to ensure that the instruments can monitor the liquid flow in real time, resulting in high energy consumption.

Contents of the invention

The present application provides a self-driven smart water meter, which can reduce energy consumption while detecting liquid flow.

In order to achieve the above purpose, the application provides a self-driven smart water meter, including:

A housing, the housing has a fluid channel and a receiving cavity communicating with each other, the receiving cavity is located above the fluid channel, and the fluid channel has a liquid inlet and a liquid outlet;

A power unit, a part of the power unit is located in the liquid flow channel, the other part of the power unit extends to the accommodation cavity, and the liquid in the liquid channel is used to drive the power unit;

A power generation unit, the power generation unit is arranged in the accommodation cavity, and the power generation unit is connected to the power unit through transmission;

A sensing unit, the sensing unit is arranged in the accommodation cavity, and the sensing unit is connected to the power unit through transmission;

A power management unit, the power management unit is arranged in the accommodating cavity, and the power management unit is connected with the power generation unit;

The communication unit is arranged in the accommodating chamber, the communication unit is connected with the power management unit, and the communication unit is also used for receiving the sensing signal generated by the sensing unit.

The self-driven smart water meter in this application can be set on the liquid pipeline. The liquid in the pipeline enters the fluid channel through the liquid inlet and flows out of the fluid channel through the liquid outlet. The rotation of the fluid channel, and the rotation of the power unit will drive the power generation unit and the sensing unit to work, so that the power generation unit generates electrical energy, and the sensing unit generates an electrical signal, and the frequency of the electrical signal is positively related to the flow rate of the liquid inlet, generating electricity The electric energy generated by the unit can provide electric energy for the power management unit. The electrical signal (sensing signal) generated by the sensing unit can be received by the communication component. The communication component can process the electrical signal to obtain the flow of the liquid. The communication component can The resulting flow of liquid is transmitted to an external terminal device. In this way, the power unit can continuously provide electric energy for the power management unit, and the power management unit can continuously provide electric energy for the communication components, so that the communication components can continuously receive the electrical signals generated by the sensing unit to obtain the flow of the liquid. The arrangement of the power unit and the power generation unit can provide electric energy for the communication components, thereby reducing energy consumption, and can also ensure real-time detection of liquid flow.

It should be noted that the sensing unit, the power generation unit, the power management unit and the communication unit are arranged on the side of the accommodating cavity away from the fluid channel.

Preferably, the housing includes a bottom case, a sealing cover and a top case, the sealing cover is connected to the bottom case, and the top case is connected to an end of the sealing cover away from the bottom case;

Wherein, the bottom case has a fluid passage, the sealing cover has a first installation cavity, the top case is provided with a second installation cavity on one side facing the bottom case, one end of the first installation cavity communicates with the fluid channel, and the other end of the first installation cavity communicates with the fluid channel. The second installation cavity communicates with each other, and the first installation cavity and the second installation cavity form an accommodating cavity.

Preferably, the power unit includes a flow guide frame, a transmission part and a rotating part;

The flow guide frame is fixedly arranged in the fluid channel, the rotating part is rotatably arranged on the flow guide frame, one end of the transmission part is connected to the rotation part by transmission, the other end of the transmission part extends into the accommodation cavity, and the other end of the transmission part is used for Drive the generating unit and sensing unit.

Preferably, the rotating part includes a worm and a runner, the worm is passed through the runner, and the worm is fixedly connected to the runner, wherein the extension direction of the worm is the same as the extension direction of the fluid channel, the axis of the worm coincides with the axis of the runner, and the Both ends are provided with a first thimble and a second thimble, and the first thimble and the second thimble are rotatably connected to the guide frame.

Preferably, the transmission part includes a first sub-transmission part, a second sub-rotation part and a third sub-transmission part, wherein the first sub-transmission part includes a first rotating shaft, a first gear and a first magnetic part, the first gear and a second sub-transmission part A magnetic part is arranged at both ends of the first rotating shaft, the first gear is connected to the worm drive, and the end of the first rotating shaft away from the first gear is also provided with a third thimble, and the third thimble is rotatably connected to the flow guide frame;

The second sub-transmission part includes a second rotating shaft, a second gear and a second magnetic part. The second gear and the second magnetic part are sleeved on the second rotating shaft. One end of the second rotating shaft is provided with a fourth thimble, and the fourth thimble is rotatable. The second magnetic part is arranged on the guide frame, the second magnetic part is arranged at one end close to the fourth thimble, and the second magnetic part corresponds to the first magnetic part, so that the second rotating shaft rotates with the first rotating shaft;

The third sub-transmission part includes a third rotating shaft, a third gear, a first connecting key and a second connecting key, the first connecting key, the second connecting key and the third gear are sequentially sleeved on the third rotating shaft, and the third rotating shaft The fifth thimble and the sixth thimble are respectively provided at both ends. The fifth thimble and the sixth thimble are used to make the third rotating shaft rotate relative to the guide frame, the third gear meshes with the second gear, and the second connecting key is used to drive The generating unit or the sensing unit, the first connection key is used to drive the sensing unit or the generating unit.

Preferably, the flow guide frame includes a first frame body and a second frame body detachably connected to the first frame body, the first frame body is provided with a first needle slot, and the second frame body is provided with a second needle slot, The first needle groove and the second needle groove cooperate with the first thimble and the second thimble arranged at both ends of the worm, and are rotatably installed on the flow guide frame through the rotating part.

Preferably, the first frame body includes a main frame body and a sealing plate connected with the main frame body, the main frame body is arranged in the fluid channel, the main frame body is detachably connected with the second frame body, and the first needle slot is arranged on the main frame body body, the sealing plate is arranged in the accommodation chamber to separate the accommodation chamber from the fluid passage, the sealing plate is provided with a third needle groove on the side facing the fluid passage, and the sealing plate is provided with a fourth needle groove on the side facing away from the fluid passage Corresponding to the fifth needle groove, the third needle groove and the fourth needle groove.

Preferably, the power generation unit includes a first stator and a first rotor, the first stator is arranged in the sealed cover, and the first rotor is connected with the second connecting key;

The first stator includes a first base plate and a plurality of pairs of first stator electrodes, and the plurality of pairs of first stator electrodes are evenly distributed around the center of the first base plate in the circumferential direction, and the first rotor includes a second base plate and a plurality of first rotor friction A plurality of first rotor friction parts are evenly distributed around the circumference of the center of the second substrate, and the first rotor friction parts are arranged in a fan shape.

Preferably, the sensing unit includes a first support frame, a first bearing, a fourth rotating shaft and a plurality of second stators;

The first support frame is connected to the sealing cover, the first support frame is provided with a sixth needle slot on the side facing the fluid channel, and the first bearing is provided on the side of the first support frame facing the fluid channel;

The fourth rotating shaft is connected with the first connection key, the fourth rotating shaft is arranged in the first bearing, and the inner ring of the first bearing is connected with the fourth rotating shaft, and a plurality of second stators are evenly distributed along the outer side of the first bearing.

Preferably, the first support frame includes a first bracket and a first top cover, the first bracket is connected to the sealing cover, the first bracket is detachably connected to the first top cover, the first top cover is provided with a sixth needle slot, and the first top cover is provided with a sixth needle slot. A bracket is provided with a through hole, and the outer ring of the first bearing is connected with the inner wall of the through hole.

Preferably, the power generating unit includes a rotor magnet, a first rotating part, a stator core, and a plurality of generating coils arranged in the stator core, the rotor magnet is arranged outside the first rotating part, and the first rotating part and the first connecting key Or the second connecting key connection, the first rotating part is provided with a hollow area, the stator iron core is arranged in the hollow area, and the stator iron core is arranged at intervals from the inner wall of the hollow area.

Preferably, the sensing unit includes a second support frame, multiple pairs of second stator electrodes and second bearings;

The second support frame is connected to the sealing cover, the second support frame is provided with a sixth needle slot on the side facing the fluid channel, and the second bearing is provided on the side of the second support frame facing the fluid channel;

Multiple pairs of second stator poles are evenly distributed on the outer ring of the second bearing, and the rotor magnet is arranged between the first rotating part and the inner ring of the second bearing.

Preferably, the second support frame includes a second bracket and a second top cover, the second bracket is connected to the sealing cover, the second bracket is detachably connected to the second top cover, and the second top cover is provided with a sixth needle slot;

An installation groove is arranged on the second bracket, a sleeve is arranged on the bottom wall of the installation groove, the second bearing is rotatably arranged in the installation groove, and the stator core is arranged in the sleeve.

Preferably, the sensing unit includes a third stator, a second rotating member and a plurality of second rotors, the third stator is fixedly arranged in the housing cavity, the second rotating member is connected to the transmission member, and the plurality of second rotors are evenly arranged on the second rotor. The peripheral side of the two rotating parts;

The third stator includes a third base plate and multiple pairs of third stator electrodes arranged on the third base plate, and the multiple pairs of third stator electrodes are evenly distributed on the third base plate around the axial direction of the axis of the second rotating member.

Preferably, the second rotating member includes a rotating first body and a plurality of first rotating plates, the first rotating body is provided with a keyway, the rotating first body is used to connect with the transmission part, and the plurality of first rotating plates rotate around the first The peripheral sides of the main body are uniformly distributed, and each first rotating plate is used to cooperate with a second rotor.

Preferably, the power generation unit includes a fourth stator and a third rotor, the fourth stator is fixedly arranged in the housing cavity, the fourth stator includes a base and a plurality of fourth stator electrodes arranged on the side wall of the base, and the plurality of fourth The stator electrodes are evenly distributed on the side wall of the base around the axial direction of the base axis, and along the axis direction of the base, two adjacent fourth stator electrodes are arranged alternately;

The third rotor includes a third rotating part and a plurality of second rotor friction parts, and the plurality of second rotor friction parts are evenly distributed on the peripheral side of the third rotating part.

Preferably, the battery management unit includes a rectification circuit, a DC-DC conversion circuit and an integrated charging and discharging circuit connected in sequence, the rectifying circuit is used to connect with the power generation unit, and the integrated charging and discharging circuit is connected to the communication unit.

Preferably, the battery pipeline unit further includes a battery, and the battery is connected to the charging and discharging integrated circuit.

Preferably, the communication unit includes a single-chip microcomputer and a display module connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the charging and discharging integrated module and the sensing unit; or the display module includes a wireless circuit, and the wireless circuit is used to connect with a remote terminal display device.

Description of drawings

Fig. 1 is a kind of structural representation of the self-driven intelligent water meter that the embodiment of the application provides;

Figure 2 is a cross-sectional view of the housing in the self-driven smart water meter provided by the embodiment of the present application;

Fig. 3 is a cross-sectional view of the bottom case in the housing of Fig. 2;

Fig. 4 is a schematic structural view of the sealing cover in the housing of Fig. 2;

Fig. 5 is a schematic structural view of the top case in the case of Fig. 2;

FIG. 6 is a schematic structural view of the power unit in the self-driven smart water meter provided by the embodiment of the present application;

Fig. 7 is a structural schematic diagram of the rotating part of the electrokinetic unit in Fig. 6;

8a to 8c are structural schematic diagrams of the transmission part of the electrokinetic unit in FIG. 6;

9a and 9b are schematic structural views of the flow guide frame of the electrokinetic unit in FIG. 6;

Fig. 10 is a schematic structural diagram of the power generation unit in Fig. 1;

Fig. 11 is a schematic structural diagram of the first stator of the power generating unit in Fig. 1;

Fig. 12a and Fig. 12b are the schematic structural diagrams of the sensing unit in Fig. 1;

Fig. 13a and Fig. 13b are structural schematic diagrams of the first support frame of the sensing unit in Fig. 12a;

Fig. 14 is another schematic structural view of the self-driven smart water meter provided by the embodiment of the present application;

Fig. 15 is a schematic structural diagram of the sensing unit and the power generation unit in Fig. 14;

Fig. 16 is a schematic structural view of the power generation unit in Fig. 14;

Fig. 17 is a schematic structural diagram of the sensing unit in Fig. 14;

Fig. 18 is a schematic structural view of the second support frame in Fig. 14;

Fig. 19 is another structural schematic diagram of the self-driven smart water meter provided by the embodiment of the present application;

Fig. 20 is a schematic structural diagram of the sensing unit in Fig. 19;

Fig. 21 is a schematic structural diagram of a third stator in the sensing unit in Fig. 20;

Fig. 22 is a schematic structural view of the second rotating member in the sensing unit in Fig. 20;

Fig. 23 is a schematic structural view of the power generating unit in Fig. 19;

Fig. 24 is a schematic structural view of the fourth stator in the power generating unit in Fig. 23;

Fig. 25 is a schematic structural view of the third rotor in the power generation unit in Fig. 23;

Fig. 26 is a working flow chart of the self-driven smart water meter provided by the embodiment of the present application.

Icons: 1-housing; 10-fluid channel; 11-accommodating cavity; 12-bottom shell; 120-installation part; 13-seal cover; 130-first installation cavity; 14-Top shell; 140-Second installation cavity; 2-Power unit; 20-Flector frame; 200-First frame body; 2000-Main frame body; 2004-fifth needle groove; 201-first needle groove; 202-second frame; 2020-second needle groove; 21-transmission part; 210-first sub-transmission part; 2100-first Rotating shaft; 2101-first gear; 2102-first magnetic part; 211-second sub-transmission part; 2110-second rotating shaft; 2111-second gear; 2112-second magnetic part; 2113-limiting sleeve; 212- The third sub-transmission part; 2120-the third rotating shaft; 2121-the third gear; 2122-the first connection key; 2123-the second connection key; 2124-the fifth thimble; 2125-the sixth thimble; - worm; 221 - runner; 222 - first thimble; 223 - second thimble; 3 - power generation unit; 30 - first stator; 300 - first substrate; 301 - first stator electrode; 31 - first Rotor; 310-second substrate; 311-first rotor friction part; 32-stator core; 33-generating coil; 34-first rotating member; 35-rotor magnet; 36-fourth stator; 360-base; 361-the fourth stator electrode; 37-the third rotor; 370-the third rotating member; 3700-the second main body; 3701-the second rotating plate; 371-the second rotor friction part; 4-sensing unit; 40-the first A support frame; 400-the first bracket; 401-the first top cover; 402-the sixth needle slot; 41-the first bearing; 42-the fourth rotating shaft; 43-the second stator; 44-the second support frame; 440 -Second bracket; 4400-installation groove; 4401-sleeve; 441-second top cover; 45-second stator electrode; 46-second bearing; 47-third stator; 470-third base plate; 471-the first Three stator electrodes; 48-second rotating member; 480-first main body; 481-first rotating plate; 49-second rotor; 5-power management unit; 6-communication unit.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, the embodiment of the present application provides a self-driven smart water meter, including: a housing 1, a power unit 2, a power generation unit 3, a sensing unit 4, a power management unit 5 and a communication unit 6; wherein the housing 1 has a fluid channel 10 and a housing chamber 11 that communicate with each other, the housing chamber 11 is located above the fluid channel 10, the fluid channel 10 has a liquid inlet and a liquid outlet; a part of the power unit 2 is located in the liquid flow channel, and the other part of the power unit 2 A part extends to the housing chamber 11, and the liquid in the liquid passage is used to drive the power unit 2; the power generation unit 3 and the sensing unit 4 are both arranged in the housing chamber 11, and both the power generation unit 3 and the sensing unit 4 are connected to the power unit 2 in transmission ; The power management unit 5 is set in the storage cavity 11, and the power management unit 5 is connected to the power generation unit 3; the communication unit 6 is set in the storage cavity 11, and the communication unit 6 is connected to the power management unit 5, and the communication unit 6 is also used to receive the sensing unit 4 generated sensing signal.

The self-driven smart water meter in this application can be set on the liquid pipeline, and the liquid in the pipeline enters the fluid channel 10 through the liquid inlet, and flows out of the fluid channel 10 through the liquid outlet. The rotating part 22 rotates relative to the fluid channel 10, and the rotation of the power unit 2 will drive the power generation unit 3 and the sensing unit 4 to work, so that the power generation unit 3 generates electric energy, and the sensing unit 4 generates electrical signals, and the frequency of the electrical signals is the same as The flow rate of the liquid at the liquid inlet is positively correlated, the electric energy generated by the power generation unit 3 can provide electric energy for the power management unit 5, the electric signal generated by the sensing unit 4 can be received by the communication component, and the communication component can process the electrical signal to obtain The flow of the liquid is obtained, and the communication component can transmit the obtained flow of the liquid to the external terminal equipment. In this way, the power unit 2 can continuously provide electric energy for the power management unit 5, and the power management unit 5 can continuously provide electric energy for the communication components, so that the communication components can continuously receive the electrical signals generated by the sensor unit 4, and obtain The flow rate of the liquid and the arrangement of the power unit 2 and the power generation unit 3 can provide electric energy for the communication components, thereby reducing energy consumption and ensuring real-time detection of the liquid flow rate.

Referring to Figures 2 to 5, the casing 1 may include a bottom casing 12, a sealing cover 13 and a top casing 14, the sealing casing 13 is connected to the casing 1, the top casing 14 is connected to the end of the sealing casing 13 away from the bottom casing 12, and the fluid The channel 10 is formed in the bottom case 12, and the sealing cover 13 is detachably connected with the bottom case 12, wherein the sealing cover 13 has a first installation cavity 130, the top case 14 has a second installation cavity 140, the first installation cavity 130 and The second installation cavity 140 communicates to form the accommodation cavity 11 , and the first installation cavity 130 also communicates with the fluid passage 10 to ensure that another part of the power unit 2 can enter the accommodation cavity 11 to drive the power generation unit 3 and the sensor unit 4 .

When specifically connecting the sealing cover 13 and the bottom case 12, the connecting piece can pass through the connecting hole on the outside of the sealing cover 13 and be connected with the mounting portion 120 on the bottom case 12, and in order to provide a gap between the sealing cover 13 and the bottom case 12 For the airtightness of the connection, a sealing ring can also be provided between the sealing cover 13 and the bottom case 12 . In addition, a protruding portion 131 may be provided inside the sealing cover 13 for cooperating with the power generation unit 3 .

It should be noted that, a connection groove 132 may be provided on a side of the sealing cover 13 facing the top case 14 , and the connection groove 132 is used for connecting with the top case 14 .

Referring to FIG. 6 , the power unit 2 can include a flow guide frame 20 , a transmission part and a rotating part 22 , and the flow guide frame 20 can be fixedly arranged in the fluid channel 10 , specifically, the flow guide frame 20 is arranged between the fluid channel 10 and the accommodation chamber 11 The connecting part, the rotating part 22 is rotatably arranged on the guide frame 20, one end of the transmission part is connected to the rotating part 22 in transmission, the other end of the transmission part extends into the accommodating cavity 11, and the other end of the transmission part is used for The power generating unit 3 and the sensing unit 4 are driven. When the liquid flows through the fluid channel 10, the rotating part 22 rotates under the action of the liquid kinetic energy, the rotating part 22 can drive the transmission part to rotate, and the transmission part is connected with the power generation unit 3 and the sensor unit 4, so that the power generation unit 3 The generation of electrical energy can also cause the sensing unit 4 to generate an electrical signal, thereby completing the detection of the liquid flow.

7, the rotating part 22 may include a worm 220 and a runner 221, the worm 220 is passed through the runner 221, and the worm 220 is fixedly connected to the runner 221, wherein the extension direction of the worm 220 is the same as that of the fluid channel 10 , the worm 220 coincides with the axis of the runner 221 , the two ends of the worm 220 are provided with a first thimble 222 and a second thimble 223 , and the first thimble 222 and the second thimble 223 are rotatably connected to the flow guide frame 20 . Specifically, the runner 221 rotates under the action of fluid kinetic energy, and the runner 221 can drive the worm 220 to rotate. During the rotation of the worm 220, the transmission part can be driven to rotate, and then the power generating unit 3 and the sensing unit 4 can be driven.

6 and 8a, the transmission part 21 may include a first sub-transmission part 210, a second sub-transmission part 210 and a third sub-transmission part 212, and the first sub-transmission part 210 includes a first shaft 2100, a first gear 2101 and The first magnetic part 2102, the first gear 2101 and the first magnetic part 2102 are arranged at both ends of the first rotating shaft 2100, the first gear 2101 is in transmission connection with the worm 220, and the end of the first rotating shaft 2100 away from the first gear 2101 is also provided with The third thimble (not shown in Fig. 8a), the third thimble is rotationally connected with the guide frame 20; wherein, the worm 220 and the first gear 2101 can form a structure similar to the worm gear 220, and the runner 221 drives the worm 220 around the runner 221 When the axis rotates, the worm 220 can drive the first gear 2101 to rotate.

6 and 8b, the second sub-transmission part 211 may include a second rotating shaft 2110, a second gear 2111 and a second magnetic member 2112, the second gear 2111 and the second magnetic member 2112 are sleeved on the second rotating shaft 2110, the second One end of the second rotating shaft 2110 is provided with a fourth thimble (not shown in Figure 8b), the fourth thimble is rotatably arranged on the guide frame 20, the second magnetic part 2112 is arranged at one end close to the fourth thimble, and the second magnetic The part 2112 corresponds to the first magnetic part 2102, so that the second rotating shaft 2110 rotates with the first rotating shaft 2100; wherein, in order to limit the position of the second gear 2111, a limiting sleeve 2113 can also be provided on the second sub-transmission part 210 , the limiting sleeve 2113 is arranged on the end of the second rotating shaft 2110 away from the second magnetic part 2112; in addition, the second magnetic part 2112 can correspond to the first magnetic part 2102, and the first magnetic part 2102 can drive the second magnetic part 2102 during the rotation process. The two magnetic components 2112 rotate, thereby making the second rotating shaft 2110 rotate along with the first rotating shaft 2100 . The second magnetic member 2112 and the second magnetic member 2112 may both be ring-mounted magnets.

6 and 8c, the third sub-transmission part 212 may include a third shaft 2120, a third gear, a first connecting key 2122 and a second connecting key 2123, the first connecting key 2122, the second connecting key 2123 and the third The gears are sequentially sleeved on the third shaft 2120, and the two ends of the third shaft 2120 are respectively provided with a fifth thimble 2124 and a sixth thimble 2125, and the fifth thimble 2124 and the sixth thimble 2125 are used to make the third shaft 2120 relatively The flow guide frame 20 rotates, the third gear meshes with the second gear 2111, the second connecting key 2123 is used to drive the power generation unit 3 or the sensing unit 4, and the first connecting key 2122 is used to drive the sensing unit 4 or the power generation unit 3, that is, the power generation unit 3 and the sensing unit 4 are specifically set, and the positions of the two can be further adjusted according to actual conditions. When the second rotating shaft 2110 rotates with the first rotating shaft through the second magnetic member 2112, the second rotating shaft 2110 meshes with the third gear arranged on the third rotating shaft 2120 to drive the third rotating shaft 2120 to rotate, thereby making the third rotating shaft 2120 The first connection key 2122 and the second connection key 2123 provided on the top rotate, thereby driving the power generation unit 3 and the sensing unit 4 .

9a and 9b, the flow guide frame 20 may include a first frame body 200 and a second frame body 202 detachably connected to the first frame body 200, the first frame body 200 is provided with a first needle slot 201, the second frame body 200 is provided with The second frame body 202 is provided with a second needle groove 2020, and the first needle groove 201 and the second needle groove 2020 cooperate with the first thimble 222 and the second thimble 223 arranged at both ends of the worm 220, so that the runner 221 is in the flow of the fluid. Under the action, the worm 220 can pass the first thimble 222 and the second thimble 223 relative to the first needle groove 201 and the second needle groove 2020, so as to ensure that the rotating part 22 can rotate when receiving the force of the fluid, so as to drive the power generation unit 3 and sensing unit 4.

More specifically, the first frame body 200 includes a main frame body 2000 and a sealing plate 2001 connected to the main frame body 2000, the main frame body 2000 is arranged in the fluid channel 10, and the main frame body 2000 is detachably connected to the second frame body 202 , the first needle groove 201 is disposed on the main frame body 2000, the sealing plate 2001 is disposed in the accommodation cavity 11, for separating the accommodation cavity 11 from the fluid channel 10, and the sealing plate 2001 faces the side of the fluid channel 10 A third needle slot 2002 is provided on one side, and a fourth needle slot 2003 and a fifth needle slot 2004 are provided on the side of the sealing plate 2001 facing away from the fluid channel 10 , and the third needle slot 2002 and the fourth needle slot 2003 are provided correspondingly. The setting of the sealing plate 2001 can ensure that the liquid will not affect the power generation unit 3 and the sensing unit 4 when passing through the fluid passage 10, thereby improving the working stability of the whole device. The arrangement of the third needle groove 2002 and the fourth needle groove 2003 can make the transmission part be stably arranged on the flow guide frame 20 .

It should be noted that the materials selected for the flow guide frame 20 and the rotating part 22 can be engineering plastics or food grade metal.

In the above-mentioned embodiment, with reference to Fig. 10 and Fig. 11, the generating unit 3 includes a first stator 30 and a first rotor 31, the first stator 30 is arranged in the sealed cover 13, and the first rotor 31 is connected to the second connection key 2123 connection; the first stator 30 may include a first substrate 300 and multiple pairs of first stator electrodes 301, and multiple pairs of first stator electrodes 301 are evenly distributed around the circumference of the center of the first substrate 300, and the first rotor 31 includes The second base plate 310 and a plurality of first rotor friction parts 311, the second base plate 310 may be provided with key grooves that cooperate with the second connecting key 2123, and the plurality of first rotor friction parts 311 surround the circumferential direction of the center of the second base plate 310 Evenly distributed, and the first rotor friction part 311 is fan-shaped. The second substrate 310 can rotate with the rotating part 22 , and then drive the first rotor friction part 311 disposed on the second substrate 310 to rotate relative to the first stator electrode 301 to generate electric energy. Wherein, two adjacent first rotor friction parts 311 are staggered with a certain phase, so as to increase the power generation capacity of the power generation unit 3 .

It should be noted that the first stator 30 can be arranged on a side close to the fluid channel 10 , and the first rotor 31 can also be arranged on a side close to the fluid channel 10 . In addition, there can be 6 pairs of first stator electrodes 301, the first stator electrodes 301 can be bonded on the surface of the first substrate 300, and the material of the first stator electrodes 301 can be copper, aluminum, silver or rabbit hair, etc. , not listed here. The material of the first rotor friction part 311 may be, but not limited to, tetrafluoroethylene, fluorinated ethylene propylene copolymer, or polyvinyl chloride.

In the above-mentioned embodiment, continue to refer to Fig. 12a and Fig. 12b, the sensing unit 4 includes a first support frame 40, a first bearing 41, a fourth rotating shaft 42 and a plurality of second stators 43; the first support frame 40 and the sealing The cover 13 is connected, the first support frame 40 is provided with a sixth needle slot 402 on the side facing the fluid passage 10, and the first bearing 41 is arranged on the first support frame 40 facing the side of the fluid passage 10; the fourth rotating shaft 42 is connected to the The first connecting key 2122 is connected, the fourth rotating shaft 42 is arranged in the first bearing 41 , and the inner ring of the first bearing 41 is connected with the fourth rotating shaft 42 , and a plurality of second stators 43 are evenly distributed along the outer side of the first bearing 41 . When the third rotating shaft 2120 rotates, the first connection key 2122 can drive the fourth rotating shaft 42 to rotate, and then can drive the first bearing 41 to rotate. The stator 43 rotates to generate electrical signals.

Wherein, the material of the second stator 43 can be, but not limited to, copper, aluminum, silver or rabbit fur, etc., and the material of the balls in the first bearing 41 can be PTFE, FEP, or glass.

Continuing to refer to FIG. 13a and FIG. 13b, the first support frame 40 may include a first bracket 400 and a first top cover 401, the first bracket 400 is connected to the sealing cover 13, the first bracket 400 is detachably connected to the first top cover 401, Among them, there are many ways of detachable connection between the first bracket 400 and the first top cover 401, which are not listed here. The first top cover 401 is provided with a sixth needle slot 402, and the first bracket 400 is provided with a through hole. , the outer ring of the first bearing 41 is connected to the inner wall of the through hole.

In the above-mentioned embodiment, referring to Fig. 14, Fig. 15 and Fig. 16, in Fig. 14, the power generating unit 3 and the sensing unit 4 are disposed in the housing cavity 11 in another form, specifically, the power generating unit 3 includes a rotor A magnet 35, a first rotating part 34, a stator core 32 and a plurality of generating coils 33 arranged in the stator core 32, a hollowed out area is arranged on the side of the first rotating part 34 facing the fluid passage 10, and the stator core 32 is provided with In the hollow area, the stator core 32 is spaced apart from the inner wall of the hollow area, and the rotor magnet 35 is disposed outside the first rotating part 34, which is connected to the first connecting key 2122 or the second connecting key 2123. The first rotating part 34 rotates with the third rotating shaft 2120, and the rotor magnet 35 arranged on the first rotating part 34 rotates with the first rotating part 34, that is, the rotor magnet 35 rotates relative to the generator coil 33, and the rotor magnet 35 rotates During the process, the rotor magnet 35 can cut the magnetic induction lines generated by the generator coil 33 to generate electric energy. Wherein, the material of the generating coil 33 may be copper or aluminum.

14 to 17, the sensing unit 4 includes a second support frame 44, a plurality of pairs of second stator electrodes 45 and a second bearing 46, the second support frame 44 is connected to the sealing cover 13, and the second support frame 44 faces the One side of the fluid channel 10 is provided with a sixth needle groove 402, and the second bearing 46 is arranged on the side of the second support frame 44 facing the fluid channel 10; multiple pairs of second stator electrodes 45 are evenly distributed on the second bearing 46, the first rotating member 34 is arranged on the inner ring of the second bearing 46, the rotor magnet 35 is arranged between the first rotating member 34 and the inner ring of the second bearing 46, the rotor magnet 35 and the first rotating member 34 and The second bearing 46 is connected. Wherein, the areas of two adjacent pairs of second stator electrodes 45 are different, and the areas of multiple pairs of second stator electrodes 45 are sequentially small and large. The comparison between the stator electrodes 45, and the areas of the two second stator electrodes 45 in each pair of second stator electrodes 45 can be the same, the electric signal generated by the friction between the balls in the second bearing 46 and the second stator electrodes 45 is affected The influence of the speed of rotation of the worm screw 220, and then the electrical signal generated by the friction between the ball in the second bearing 46 and the second stator electrode 45 is affected by the flow rate. In addition, the area of two adjacent pairs of second stator electrodes 45 is different. Similarly, the amplitude of the electrical signal generated by the friction between the ball in the second bearing 46 and the second stator electrode 45 can be different, and the direction of fluid in and out can be judged according to the law of amplitude variation.

The material of the second stator electrode 45 can be the same as the material of the first stator electrode 301 , and details will not be repeated here.

14 to 18, the second support frame 44 includes a second bracket 440 and a second top cover 441, the second bracket 440 is connected to the sealing cover 13, the second bracket 440 is detachably connected to the second top cover 441, the second The second top cover 441 is provided with a sixth needle groove 402, the second bracket 440 is provided with a mounting groove 4400, the bottom wall of the mounting groove 4400 is provided with a sleeve 4401, and the second bearing 46 is rotatably arranged in the mounting groove 4400 , the stator core 32 is set in the sleeve 4401 . The arrangement of the installation groove 4400 can ensure the working stability of the stator core 32 and the second bearing 46 .

Referring to Figures 19 to 22, in Figure 19, the power generating unit 3 and the sensing unit 4 are arranged in the housing chamber 11 in another form, specifically, the sensing unit 4 includes a third stator 47, a second rotating A part 48 and a plurality of second rotors 49, the second rotating part 48 is connected with the transmission part, and the plurality of second rotors 49 are evenly arranged on the peripheral side of the second rotating part 48; the third stator 47 includes a third base plate 470 and is arranged on There are multiple pairs of third stator electrodes 471 on the third substrate 470 , and the multiple pairs of third stator electrodes 471 are evenly distributed on the third substrate 470 around the axis of the second rotating member 48 . Wherein, the cross-section of the third base plate 470 is L-shaped to ensure the stable operation of the second rotor 49 . The second rotating member 48 includes a rotating first body 480 and a plurality of first rotating plates 481, the first rotating body 480 is provided with a keyway, and the rotating first body 480 is used to connect with the transmission member, and the plurality of first rotating plates 481 rotate around The surrounding sides of the rotating first body 480 are evenly distributed, and each first rotating plate 481 cooperates with a second rotor 49 . The transmission part can drive the first main body 480 to rotate, and the first main body 480 drives the first rotating plate 481 to rotate, so that the second rotor 49 rotates relative to the third stator pole 471 .

It should be noted that the second rotor 49 has a spherical structure, and the material of the second rotor 49 is PTFE. Friction between the third stator electrode 471 and the second rotor 49 generates electrical signals, and the rotation frequency of the second rotor 49 is positively correlated with the liquid flow rate, so that the liquid flow rate can be detected.

Referring to Fig. 23, Fig. 24 and Fig. 25, the power generation unit 3 may include a fourth stator 36 and a third rotor 37, the fourth stator 36 is fixedly arranged in the housing cavity 11, the fourth stator 36 includes a base 360 and is arranged on the base A plurality of fourth stator electrodes 361 on the side wall of the base 360, the plurality of fourth stator electrodes 361 are evenly distributed on the side wall of the base 360 around the axial direction of the axis of the base 360, and along the axis direction of the base 360, Two adjacent fourth stator poles 361 are alternately arranged; the third rotor 37 includes a third rotating member 370 and a plurality of second rotor friction parts 371, and the plurality of second rotor friction parts 371 are evenly distributed around the third rotating member 370 side.

The third rotating member 370 may include a second main body 3700 and a plurality of second rotating plates 3701 groups. One side of the second main body 3700 is provided with a second rotor friction part 371, wherein each second rotating plate 3701 group includes two second rotating plates 3701, and the second rotor friction part 371 is connected to the second rotating plate 3701 away from the second rotating plate. Two sides of the main body 3700. Wherein, the material of the fourth stator electrode 361 may include copper, aluminum, silver or rabbit fur. The material of the second rotor friction part 371 includes PTFE, FEP, aluminum, silver or glass and the like.

In the above-mentioned embodiment, referring to FIG. 26, the battery management unit includes a rectification circuit, a DC-DC conversion circuit, and a charge-discharge integrated circuit connected in sequence, the rectifier circuit is used to connect with the power generation unit 3, and the charge-discharge integrated circuit and the communication unit 6 connect. The battery pipeline unit also includes a battery, and the battery is connected to the charging and discharging integrated circuit.

The communication unit 6 includes a single-chip microcomputer and a display module connected to the single-chip microcomputer. The single-chip microcomputer is connected to the charging and discharging integrated module and the sensing unit 4. The single-chip microcomputer is used to identify and process the signal of the sensing unit 4 to obtain parameter information in the pipeline. The display module receives The information of the single-chip microcomputer realizes the real-time display of the parameter information in the pipeline in the water meter.

Or the display module includes a wireless circuit, and the wireless circuit can be connected with a remote terminal display device to identify the parameter information in the pipeline calculated by the single-chip computer and send the information to the terminal display device.

Among them, the types of rectification circuit include half-wave rectification circuit, full-wave rectification circuit, bridge rectification circuit or voltage doubler rectification circuit, etc., the charging and discharging integrated circuit adopts TP4056 chip, and the power generation unit 3 converts the output AC signal through the bridge rectification bridge For direct current, the DC-DC conversion circuit converts the direct current and distributes the electric energy through the integrated charging and discharging circuit. Charge electric energy into the battery to realize active supply support.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (13)

1. A self-driven intelligent water meter, comprising:

the shell is provided with a fluid channel and a containing cavity which are communicated with each other, and the fluid channel is provided with a liquid inlet and a liquid outlet;

a power unit, a part of the power unit is positioned in the liquid flow channel, the other part of the power unit extends to the accommodating cavity, and liquid in the liquid channel is used for driving the power unit;

the power generation unit is arranged in the accommodating cavity and is in transmission connection with the power unit;

the sensing unit is arranged in the accommodating cavity and is in transmission connection with the power unit;

the power management unit is arranged in the accommodating cavity and is connected with the power generation unit;

The communication unit is arranged in the accommodating cavity, is connected with the power management unit and is further used for receiving the sensing signals generated by the sensing unit.

2. The self-driven intelligent water meter of claim 1, wherein the housing comprises a bottom shell, a sealing cover and a top shell, the sealing cover is connected to the bottom shell, and the top shell is connected with one end of the sealing cover away from the bottom shell;

the bottom shell is provided with the fluid channel, the sealing cover is provided with a first installation cavity, one side of the top shell, which faces the bottom shell, is provided with a second installation cavity, one end of the first installation cavity is communicated with the fluid channel, the other end of the first installation cavity is communicated with the second installation cavity, and the first installation cavity and the second installation cavity form the containing cavity.

3. The self-driven intelligent water meter according to claim 1 or 2, wherein the power unit comprises a diversion frame, a transmission part and a rotation part;

the flow guide frame is fixedly arranged in the fluid channel, the rotating part is rotatably arranged on the flow guide frame, one end of the transmission part is in transmission connection with the rotating part, the other end of the transmission part extends into the accommodating cavity, and the other end of the transmission part is used for driving the power generation unit and the sensing unit;

The rotating part comprises a worm and a rotating wheel, the worm penetrates through the rotating wheel, the worm is fixedly connected with the rotating wheel, the extending direction of the worm is identical to that of the fluid channel, the worm coincides with the axis of the rotating wheel, a first thimble and a second thimble are arranged at two ends of the worm, and the first thimble and the second thimble are rotationally connected to the flow guiding frame.

4. The self-driven intelligent water meter according to claim 3, wherein the transmission part comprises a first sub-transmission part, a second sub-rotation part and a third sub-transmission part, wherein the first sub-transmission part comprises a first rotating shaft, a first gear and a first magnetic piece, the first gear and the first magnetic piece are arranged at two ends of the first rotating shaft, the first gear is in transmission connection with the worm, a third thimble is further arranged at one end of the first rotating shaft far away from the first gear, and the third thimble is in rotation connection with the guide frame;

the second sub-transmission part comprises a second rotating shaft, a second gear and a second magnetic part, wherein the second gear and the second magnetic part are sleeved on the second rotating shaft, a fourth thimble is arranged at one end of the second rotating shaft and is rotatably arranged on the flow guide frame, the second magnetic part is arranged at one end close to the fourth thimble, and the second magnetic part corresponds to the first magnetic part so that the second rotating shaft rotates along with the first rotating shaft;

The third sub-transmission part comprises a third rotating shaft, a third gear, a first connecting key and a second connecting key, wherein the first connecting key, the second connecting key and the third gear are sequentially sleeved on the third rotating shaft, a fifth thimble and a sixth thimble are respectively arranged at two ends of the third rotating shaft, the fifth thimble and the sixth thimble are used for enabling the third rotating shaft to rotate relative to the flow guiding frame, the third gear is meshed with the second gear, the second connecting key is used for driving the power generation unit or the sensing unit, and the first connecting key is used for driving the sensing unit or the power generation unit.

5. The self-driven intelligent water meter according to claim 4, wherein the diversion frame comprises a first frame body and a second frame body detachably connected with the first frame body, a first needle groove is formed in the first frame body, a second needle groove is formed in the second frame body, the first needle groove and the second needle groove are matched with the first thimble and the second thimble which are arranged at two ends of the worm, and the rotation part is rotatably arranged on the diversion frame;

the first support body include the body support body and with the closing plate that the body support body is connected, the body support body set up in the fluid passage, the body support body with the connection can be dismantled to the second support body, first needle groove set up in the body support body, the closing plate sets up hold the intracavity, in order to be used for with hold the chamber with the fluid passage separates, the closing plate orientation one side of fluid passage is provided with the third needle groove, one side that the closing plate deviates from fluid passage is provided with fourth needle groove and fifth needle groove, the third needle groove with fourth needle groove corresponds the setting.

6. The self-driven intelligent water meter according to claim 4 or 5, wherein the power generation unit comprises a first stator and a first rotor, the first stator is arranged in the sealing cover, and the first rotor is connected with the second connecting key;

the first stator comprises a first substrate and a plurality of pairs of first stator electrodes, the pairs of first stator electrodes are uniformly distributed around the circumference of the center of the first substrate, the first rotor comprises a second substrate and a plurality of first rotor friction parts, the plurality of first rotor friction parts are uniformly distributed around the circumference of the center of the second substrate, and the first rotor friction parts are in fan-shaped arrangement.

7. The self-driven intelligent water meter according to claim 4 or 5, wherein the sensing unit comprises a first support frame, a first bearing, a fourth rotating shaft and a plurality of second stators;

the first support frame is connected with the sealing cover, a sixth needle groove is formed in one side, facing the fluid channel, of the first support frame, and the first bearing is arranged on one side, facing the fluid channel, of the first support frame;

the fourth rotating shaft is connected with the first connecting key, the fourth rotating shaft is arranged in the first bearing, the inner ring of the first bearing is connected with the fourth rotating shaft, and a plurality of second stators are uniformly distributed along the outer side of the first bearing;

The first support frame includes first support and first top cap, first support with the sealed cowling is connected, first support with first top cap can dismantle the connection, be provided with on the first top cap the sixth needle groove, first support is provided with the through-hole, the outer lane of first bearing with the inner wall connection of through-hole.

8. The self-driven intelligent water meter according to claim 4 or 5, wherein the power generation unit comprises a rotor magnet, a first rotating member, a stator core and a plurality of power generation coils arranged in the stator core, the rotor magnet is arranged on the outer side of the first rotating member, the first rotating member is connected with the first connecting key or the second connecting key, the first rotating member is provided with a hollowed-out area, the stator core is arranged in the hollowed-out area, and the stator core is arranged at intervals with the inner wall of the hollowed-out area.

9. The self-driven intelligent water meter of claim 8, wherein the sensing unit comprises a second support frame, a plurality of pairs of second stator electrodes, and a second bearing;

the second support frame is connected with the sealing cover, a sixth needle groove is formed in one side, facing the fluid channel, of the second support frame, and the second bearing is arranged on one side, facing the fluid channel, of the second support frame;

The pairs of second stator electrodes are uniformly distributed on the outer ring of the second bearing, and the rotor magnet is arranged between the first rotating piece and the inner ring of the second bearing;

the second support frame comprises a second support and a second top cover, the second support is connected with the sealing cover, the second support is detachably connected with the second top cover, and the sixth needle groove is formed in the second top cover;

the second bracket is provided with a mounting groove, the bottom wall of the mounting groove is provided with a sleeve, the second bearing is rotatably arranged in the mounting groove, and the stator core is arranged in the sleeve.

10. The self-driven intelligent water meter according to claim 4 or 5, wherein the sensing unit comprises a third stator, a second rotating member and a plurality of second rotors, the third stator is fixedly arranged in the accommodating cavity, the second rotating member is connected with the transmission member, and the plurality of second rotors are uniformly arranged on the periphery of the second rotating member;

the third stator comprises a third substrate and a plurality of pairs of third stator electrodes arranged on the third substrate, and the third stator electrodes are uniformly distributed on the third substrate around the axial direction of the axis of the second rotating piece.

11. The self-driven intelligent water meter of claim 10, wherein the second rotating member comprises a rotating first body and a plurality of first rotating plates, wherein a key slot is arranged on the rotating first body, the rotating first body is used for being connected with the transmission part, the plurality of first rotating plates are uniformly distributed around the circumference of the rotating first body, and each first rotating plate is used for being matched with one second rotor.

12. The self-driven intelligent water meter according to claim 10 or 11, wherein the power generation unit comprises a fourth stator and a third rotor, the fourth stator is fixedly arranged in the accommodating cavity, the fourth stator comprises a base and a plurality of fourth stator electrodes arranged on the side wall of the base, the plurality of fourth stator electrodes are uniformly distributed on the side wall of the base around the axial direction of the axis of the base, and two adjacent fourth stator electrodes are staggered along the axial direction of the base;

the third rotor comprises a third rotating piece and a plurality of second rotor friction parts, and the second rotor friction parts are uniformly distributed on the periphery side of the third rotating piece.

13. The self-driven intelligent water meter according to any one of claims 1 to 12, wherein the communication unit comprises a single chip microcomputer and a display module connected with the single chip microcomputer, and the single chip microcomputer is connected with a charge-discharge integrated module in the battery management unit and the sensing unit;

Or the display module comprises a wireless circuit for connecting with a remote terminal display device.

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