CN112305305A - Isolation processing system between two cores of modular electric energy meter - Google Patents
Isolation processing system between two cores of modular electric energy meter Download PDFInfo
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- CN112305305A CN112305305A CN202011197115.6A CN202011197115A CN112305305A CN 112305305 A CN112305305 A CN 112305305A CN 202011197115 A CN202011197115 A CN 202011197115A CN 112305305 A CN112305305 A CN 112305305A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses a modularized electric energy meter double-core isolation processing system, which comprises a management core module, a metering core module, a wireless module and a power isolation module, wherein the management core module is used for managing the electric energy meter; the management core module and the metering core module perform information interaction through the wireless module, and energy transmission is performed between the management core module and the metering core module through the power isolation module; the modularized electric energy meter is connected with an external input lead by adopting a quick connector and is easy to insert and disassemble; the invention introduces the idea of a wireless module into an isolation circuit, energy is transmitted between a management module and a metering module only through a power isolation module, information transmission is realized through the wireless module, and the leap from connection type isolation (capacitance isolation, electromagnetic isolation and optical coupling isolation) to space type isolation is completely realized.
Description
Technical Field
The invention relates to the field of modularized electric energy meters, in particular to an isolation processing system between double cores of a modularized electric energy meter.
Background
In the period of great revolution of the power industry at present, various new technologies, new methods and new requirements are continuously developed, the next generation of power revolution is led by the modularized electric energy meter, the new generation of electric energy meter adopts a modularized design idea, a metering module, a management module and an auxiliary function module are separated, and energy transfer and information interaction among the modules are realized by adopting a plugging technology.
Because energy transfer and information interaction exist between the management module and the metering module, and the metering module and the management module have strong and weak electric isolation requirements. For this case, there are generally three techniques available at present: 1. the electric energy and information interaction between the metering module and the management module is realized by adopting a capacitance isolation technology, the information transmission rate of 200Mbps can be realized by adopting the capacitance isolation technology at the present stage, and the signal delay is 12 ns; the magnetic isolation technology is adopted to realize the interaction of the electric energy and the information of the metering module and the management module, the magnetic isolation technology can realize the signal transmission rate of 150Mbps at the present stage, and the signal delay is 32 ns; 3. the electric energy and information interaction between the metering module and the management module is realized by adopting a high-speed optical coupling technology, the signal transmission rate of 50Mbps can be realized by adopting a high-speed optical coupling isolation technology at the present stage, and the signal delay is 20 ns.
Although the new generation of electric energy meter adopts the idea of modularization, the modularization idea is realized, but the traditional isolation method is still adopted in the aspect of isolating strong and weak electricity, the idea of isolating optical coupling in a classic 485 external communication circuit is continued, and the subversive idea cannot be introduced in the isolation; in addition, if wiring of a binding post of a common electric energy meter is not too hard, a lead can fall off.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problem to be solved by the invention is how to realize strong and weak electric isolation and signal line isolation between double cores under the large background of the power internet of things, and the safety characteristic and the complete physical isolation characteristic of a strong interface and a weak interface are more clearly embodied.
In order to solve the technical problems, the invention provides the following technical scheme: a modularized electric energy meter double-core isolation processing system comprises a management core module, a metering core module, a wireless module and a power isolation module; the management core module and the metering core module perform information interaction through the wireless module, and the management core module and the metering core module perform energy transmission through the power isolation module.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the wireless module comprises a first end and a second end, the first end is connected with the management core module, and the second end is connected with the metering core module; the first end is wirelessly connected with the second end.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the management core module comprises a management core, a key, a dot matrix liquid crystal and a display interface, wherein the management core is connected with the first end, and the display interface is respectively connected with the key and the dot matrix liquid crystal.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the metering core module comprises a metering core and a commercial power access port, and the metering core is connected with the second end.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the power supply isolation module comprises a transformer, a first electric energy change and a second electric energy change, wherein the transformer is respectively connected with the first electric energy change and the second electric energy change.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the transformer comprises a primary winding side and a secondary winding side, the primary winding side is in variable connection with the first electric energy, and the secondary winding side is in variable connection with the second electric energy.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the first power variation is connected with the metering core module, and the second power variation is connected with the management core module.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the management core module further comprises a first power interface, the metering core module further comprises a second power interface, the first power interface is connected with the first electric energy change, and the second power interface is connected with the second electric energy change.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the power isolation module further comprises a power isolation chip, and the power isolation chip isolates the primary winding side from the secondary winding side; the power isolation chip adopts a B1205LS-1WR2 chip.
As a preferred scheme of the modular electric energy meter double-core isolation processing system, the modular electric energy meter double-core isolation processing system comprises the following steps: the wireless module adopts FC6003 Bluetooth module.
The invention has the beneficial effects that:
1. the idea of a wireless module is introduced into an isolation circuit, so that the leap from connection type isolation (capacitive isolation, electromagnetic isolation and optical coupling isolation) to space type isolation is thoroughly realized;
2. the management module and the metering module only transmit energy through the power isolation module, and information transmission is realized through the wireless module;
3. the Bluetooth module adopted by the invention has ultra-low power consumption and small volume, can be disassembled and cut in a customized manner, can be connected to palm equipment such as a mobile phone and the like, is convenient for a user to check the electricity utilization condition, the electricity fee payment and other operations in real time and rapidly, and can be finished by the mobile phone, so that the electric energy meter becomes more intelligent;
4. the quick connector replaces the original wiring terminal of the modularized electric energy meter, the condition that a lead is opened in a system in the implementation process is avoided, the quick connector is easy to insert and break, and the power utilization safety is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic diagram of a modular electric energy meter dual-core isolation processing system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of power isolation in a modular electric energy meter dual-core isolation processing system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a dual-core connection in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a wireless module in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a quick connect coupling in a modular electric energy meter dual-core isolation processing system according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a movable element in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a fixing component in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a fixing component in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating the connection of a quick connect coupling in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
FIG. 10 is a schematic view of a toggle cylinder in a dual-core isolation processing system of a modular electric energy meter according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a second connector in a modular electric energy meter dual-core isolation processing system according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1-2, the present embodiment provides a modular electric energy meter dual-core isolation processing system, which includes a management core module 100, a measurement core module 200, a wireless module 300, and a power isolation module 400; the management core module 100 mainly completes functions of charging, fee control, display, event recording and the like, the metering core module 200 can record event records of plugging, unplugging, power failure, zero clearing and the like of the management core module 100, information interaction is carried out between the management core module 100 and the metering core module 200 through the wireless module 300, and energy transmission is carried out between the management core module 100 and the metering core module 200 through the power isolation module 400.
Further, the wireless module 300 comprises a first end 301 and a second end 302, the first end 301 is connected with the management core module 100, and the second end 302 is connected with the metering core module 200; the first end 301 is wirelessly connected to the first end 301. In this embodiment, the wireless module 300 is an FC6003 bluetooth module, and is respectively installed on the management core module 100 to perform information interaction with the metering core module 200. The wireless module 300 is internally provided with a 32-bit ARM-Cortex M0 processor, an AES-128-bit encryption processor and a 32KB OTP memory, adopts a super-strong signal antenna and can be connected to palm equipment such as a mobile phone, so that a user can conveniently and quickly check the electricity utilization condition, the electricity fee uploading and other operations of the user in real time and can be completed by the mobile phone, and the electric energy meter becomes more intelligent; the transmission distance is 4 times of the current standard, the speed is doubled, and the transmission distance of 300 meters and the speed of 24Mbps can be expected to be on line.
The management core module 100 comprises a management core 101, a key 102, a dot matrix liquid crystal 103 and a display interface 104, the management core 101 is connected with the first end 301, the display interface 104 is respectively connected with the key 102 and the dot matrix liquid crystal 103, the electric energy meter can be conveniently operated through the key 102 and the display interface 104, the management core 101 plays roles of conversion, distribution, detection and other electric energy management in a system, and is mainly responsible for identifying the power supply amplitude of a CPU (central processing unit), generating corresponding short moment waves and pushing a rear-stage circuit to output power, and the management core 101 in the embodiment adopts an HT6035 management chip.
The metering core module 200 comprises a metering core 201 and a mains supply access port 202, the metering core 201 is connected with the second end 302, the metering core 201 records event records such as plugging, power failure and zero clearing of the management core module 100, the metering core 201 has functions of automatically measuring voltage, current, active power, reactive power, apparent power, frequency, power factor, energy and the like of a power grid, and the metering core 201 adopts an RN2025 metering chip in the embodiment.
When the management core 101 determines that the display needs to be updated, the management core 101 transmits the data that needs to be updated and displayed to the metering core 201 through the wireless module 300, and the management core 101 reads the data such as the electric quantity, the electric energy and the clock generated by the metering core 201 through the wireless module 300. The management core module 100 further includes an uplink communication module weak current interface 106, the metering core module 200 further includes an uplink communication module strong current interface 204, and the uplink communication module weak current interface 106 is connected to the uplink communication module strong current interface 204 through an uplink communication module 500.
Example 2
Referring to fig. 1 to 2, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that: the power isolation module 400 includes a transformer 401, a first power variation 402, and a second power variation 403, and the transformer 401 is connected to the first power variation 402 and the second power variation 403, respectively. The line L, N of the transformer 401 carries the commercial power 220VAC, the transformer 401 includes a primary winding side 401a and a secondary winding side 401b, the primary winding side 401a is connected with the first power variation 402, and the secondary winding side 401b is connected with the second power variation 403. Further, 15VAC alternating current is output from the primary winding side 401a, the 15VAC alternating current is converted into direct current electric energy required by the metering core module 200 through a first electric energy change 402, and if the voltage standard required by the metering core 201 is 3.3VDC, the electric energy change link is to convert the 15VAC into 3.3VDC to meet the energy requirement; the output voltage of the secondary winding side 401b is 12VAC, and the output voltage is converted into 5VDC power through the second power variation 403 device to supply power to the management core module 100. Further, a first power variation 402 is connected to the metering core module 200 and a second power variation 403 is connected to the management core module 100. The management core module 100 further comprises a first power interface 105 and the metering core module 200 further comprises a second power interface 203, the first power interface 105 being connected to a first power variation 402 and the second power interface 203 being connected to a second power variation 403.
Further, the power isolation module 400 further includes a power isolation chip 404, the power isolation chip 404 is used as a part of the second power variation 403, the transformer 401 realizes isolation between the primary winding side 401a and the secondary winding side 401b, the power isolation chip 404 performs secondary isolation processing on the power output by the second power variation 403, for example, after the 12VAC is rectified and flows out, the power is converted into 12VDC, and then the 12VDC is converted into 5VDC, the power isolation chip 404 realizes secondary isolation, and the circuit reliability is improved. The power isolation chip 404 adopted by the invention is a B1205LS-1WR2 chip, and the isolation voltage can reach 1.5 KVDC; URB2412, high output power, and isolation voltage reaching 1.5 KVDC; or the URB2412 chip has high output power and the isolation voltage can reach 1.5 KVDC.
Example 3
Referring to fig. 3 to 4, a third embodiment of the present invention is based on the previous embodiment, and the third embodiment provides the circuit connection relationship in the present invention, and the wireless module 300 includes three pins, which are respectively: the metering core module 200 comprises a PC5/TXD, a PC4/RXD and a RST, wherein a UART port, namely a data transmission port, is arranged on a module, namely the metering core module 200, and comprises two TX and RX; the management core module 100 is also provided with a UART data transmission port, which includes two TX ports and two RX ports, a PC5/TXD pin on the first end 301 of the wireless module 300 is connected with the TX port on the management core module 100 through a TXD _ Blue, a PC4/RXD pin on the first end 301 of the wireless module 300 is connected with the RX port on the management core module 100 through a RXT _ Blue, and a RST pin on the first end 301 of the wireless module 300 is connected with the general IO port on the management core module 100 through a nRST _ Blue; the PC5/TXD pin on the second end 302 of the wireless module 300 is connected with the TX port on the metering core module 200 through the TXD _ Blue, the PC4/RXD pin on the second end 302 of the wireless module 300 is connected with the RX port on the metering core module 200 through the RXT _ Blue, and the RST pin on the second end 302 of the wireless module 300 is connected with the general IO port on the metering core module 200 through the nRST _ Blue.
Example 4
Referring to fig. 5 to 11, a fourth embodiment of the present invention is based on the previous embodiment, wherein the modular electric energy meters in embodiments 1 and 2 are connected to the external device by a wire of a quick connector a.
Specifically, the quick connector a includes a fixed component 600 and a movable component 700, the fixed component 600 is connected with the movable component 700, in this embodiment, the fixed component 600 is mounted on a terminal of the battery 103a, the movable component 700 is connected with an input end of the DC/DC boost module 105 through a lead, and when the fixed component 600 is connected with the movable component 700, the DC/DC boost module 105 is connected with the battery 103 a.
Specifically, the fixing assembly 600 includes a first connector 601, a first conductor 602 located in the first connector 601, the first connector 601 is an insulator, the first conductor 602 is connected to a terminal of the battery 103a, and the first conductor 602 is located in the first connector 601; the movable assembly 700 includes a second contact 701 and a second conductor 702 disposed in the second contact 701, the second contact 701 is an insulator, the second conductor 702 has a portion extending into the second contact, and the first conductor 602 can be inserted into the first contact 601 to connect with the first conductor 602.
Further, the first connector 601 is provided with a through conductive hole 601a, the first conductor 602 is located in the conductive hole 601a, the first conductor 602 is cylindrical, the first conductor 602 can slide in the conductive hole 601a along the axial direction, a first elastic member 603 is connected between the first conductor 602 and one end of the conductive hole 601a, the first elastic member 603 is preferably a pressure spring, that is, under the elastic force of the first elastic member 603, the first conductor 602 tends to move towards the opening direction of the conductive hole 601a, one end of the conductive hole 601a connected with the second conductor 702 is provided with a first limiting boss 601b, the diameter of the first limiting boss 601b is smaller than that of the first conductor 602, so that the first limiting boss 601b can limit the first conductor 602 from protruding out of the conductive hole 601 a.
Further, a sliding cylinder 604 is sleeved on the first joint 601, the sliding cylinder 604 is a hollow cylindrical insulator, the inner diameter of the sliding cylinder is equal to the outer diameter of the first joint 601 and the sliding cylinder 604 is in clearance fit with the outer diameter of the first joint 601, so that the sliding cylinder 604 can slide on the first joint 601, correspondingly, one end of the first joint 601, which is in contact with the second joint 701, extends in the radial direction to form a second limiting boss 601c, the diameter of the second limiting boss 601c is larger than the inner diameter of the sliding cylinder 604, and the second limiting boss 601c limits the sliding cylinder 604 to be separated from the first joint 601, wherein the sliding cylinder 604 includes an abutting end 604a sleeved on the second limiting boss 601c, the abutting end 604a is also cylindrical, and the abutting end 604a is in clearance fit with the second limiting boss 601 c.
Further, the first joint 601 is provided with a sliding groove 601d penetrating in the radial direction, a limiting member 605 is arranged in the sliding groove 601d, and the limiting member 605 can slide in the sliding groove 601d along the radial direction of the first joint 601, wherein the limiting member 605 is provided with a guide groove 605a, the guide groove 605a penetrates in the axial direction of the first joint 601, the sliding cylinder 604 is connected with a guide member 606, and the guide member 606 penetrates through the guide groove 605 a; the portion of the second conductor 702 extending out of the second contact 701 is provided with a limiting groove 702 a. That is, when the second conductor 702 is inserted into the conductive hole 601a and connected to the first conductor 602, one end of the stopper 605 can be inserted into the stopper groove 702a to restrict the axial displacement of the second conductor 702, so that one end of the second conductor 702 can be fixed to the conductive hole 601a and connected to the first conductor 602.
When the sliding cylinder 604 slides on the first joint 601, the position of the limiting member 605 can be adjusted to insert one end of the limiting member into the limiting groove 702 a; specifically, the surface of the guide groove 605a away from the first conductor 602 is a first inclined surface 605b, that is, the cross section of the guide groove 605a is a right trapezoid, the height of the right trapezoid is the depth of the guide groove 605a, and is also the thickness of the limiting member 605, and correspondingly, the guide member 606 is provided with a second inclined surface 606a, the first inclined surface 605b is parallel to and in contact with the second inclined surface 606a, so that when the guide member 606 moves along with the sliding barrel 604, the second inclined surface 606a can push the first inclined surface 605b to move, preferably, when the sliding barrel 604 is pushed to move away from the second limiting projection 601c, the second inclined surface 606a simultaneously moves on the surface of the first joint 601 along the axial direction, and at this time, the second inclined surface 606a pushes the first inclined surface 605b, so as to convert the movement of the sliding barrel 604 along the axial direction of the first joint 601 into the movement of the guide member 606 along the radial direction of the first joint 601, so that one end of the adjustment guide 606 is disengaged from the catching groove 702 a.
Further, the limiting member 605 is divided into a guiding end 605c and a limiting end 605d, the guiding end 605c is an end located outside the first connector 601, the limiting end 605d is an end located inside the conductive hole 601a, wherein an end surface of the guiding end 605c is parallel to the first inclined surface 605b, that is, a part of a cross section between the guiding end 605c and the guiding groove 605a is a parallelogram; preferably, a sliding slot 604b is formed in the abutting end 604a, a space is formed between the sliding slot 604b and the guiding member 606, so that the guiding end 605c is located in the space, the end surface of the guiding end 605c contacts with the sliding slot 604b, and then when the sliding barrel 604 starts to reset, one surface of the sliding slot 604b pushes the end surface of the guiding end 605c to move.
It should be noted that, in order to avoid the motion interference of the components in the above process, an avoiding groove 601f is formed on the second limiting boss 601c, one end of the guide 606 is inserted into the avoiding groove 601f, and the avoiding groove 601f can also limit the rotation of the sliding cylinder 604.
Preferably, the end surface of the limiting end 605d is an inclined surface, that is, the limiting end 605d is wedge-shaped, and the limiting end 605d can be inserted into the guiding groove 605a, wherein when the second conductor 702 enters the conductive hole 601a, the inclined end surface of the limiting end 605d is firstly contacted, and the limiting member 605 can be pushed to contract into the sliding groove 601 d.
Preferably, a third limiting boss 601e is disposed at one end of the first connector 601, the diameter of the third limiting boss 601e is larger than that of the first connector 601, a second elastic member 607 is disposed between the third limiting boss 601e and the sliding tube 604, the second elastic member 607 is a pressure spring, so that one end of the sliding tube 604 abuts against the second limiting boss 601c under the elastic force of the second elastic member 607, that is, in a normal state, the sliding slot 604b in the sliding tube 604 pushes the limiting member 605 and the limiting end 605d extends into the conductive hole 601 a.
Further, a fourth limiting boss 701a is arranged at one end, in contact with the first connector 601, of the second connector 701, the diameter of the fourth limiting boss 701a is not larger than that of the second limiting boss 601c, a poking cylinder 703 is sleeved on the second connector 701, the poking cylinder 703 is in clearance fit with the second connector 701, and the inner diameter of the poking cylinder 703 is larger than that of the second limiting boss 601c and not larger than that of the contact end 604 a.
Specifically, the toggle cylinder 703 is divided into an abutting cylinder 703a sleeved outside the fourth limiting boss 701a and a limiting ring 703b sleeved outside the second connector 701, the limiting ring 703b and the fourth limiting boss 701a can limit the toggle cylinder 703 from disengaging from the second connector 701, a fourth elastic member 704 is connected between the limiting ring 703b and the fourth limiting boss 701a, the fourth elastic member 704 is a pressure spring, that is, under the elastic force of the fourth elastic member 704, the limiting ring 703b is far away from the fourth limiting boss 701a, so that when the first connector 601 is connected with the second connector 701, the limiting member 605 blocks the second conductor 702 so that the two cannot disengage, when the first connector 601 is to be disconnected, the toggle cylinder is pushed to one end of the first connector 601, at this time, one end of the toggle cylinder 703 is contacted with the sliding cylinder and pushes one end of the sliding cylinder 604, and then the guiding member 606 inside thereof drives the limiting member 605 to disengage the limiting end 605d from the limiting groove 702a, at this time, the axial movement of the second conductor 702 is no longer restricted, and the first conductor 602 pushes the second conductor 702 out of the conductive hole 601a by the elastic force of the first elastic member 603, so that the first contact 601 is disconnected from the second contact 701; it should be noted that the elastic force of the first elastic member 603 is greater than the elastic force of the fourth elastic member 704, so that the first elastic member 603 can make the first conductor 602 push the second conductor 702 out of the conductive hole 601 a.
Further, the other end of the first connector 601 is connected with an external connector 705, the external connector 705 is an external wire, wherein the wire is connected with the second conductor 702, in this embodiment, the fixing assembly 600 is fixed on the modular electric energy meter, the first conductor 602 is connected with a terminal conductor of the modular electric energy meter, and the external connector 705 is connected with an input end wire.
Preferably, in order to prevent foreign objects from touching the toggle cylinder 703 to break the quick connector a, the outer periphery of the second connector 701 is provided with a safety groove 701b, the inner ring of the limit ring 703b is provided with a limit pin 703c, and the limit pin 703c is embedded into the safety groove 701 b.
The safety groove 701b includes a first groove 701b-1 extending axially from the end of the second connector 701, a second groove 701b-2 connected to the first groove 701b-1 and extending circumferentially of the second connector 701, and a third groove 701b-3 connected to the second groove 701b-2 and extending axially of the second connector 701. When the first groove 701b-1 is used for installing the toggle cylinder 703, the limiting pin 703c enters from the first groove 701b-1, the second groove 701b-2 is used for connecting the quick connector A with the upper limiting pin 703c, and when the quick connector A needs to be disconnected, the toggle cylinder 703 can be operated to slide on the second connector 701 only by rotating the toggle cylinder 703 and enabling the limiting pin 703c to rotate into the third groove 701 b-3.
In this embodiment, a quick connector a is provided for embodiment 1, which avoids the open circuit in the system during the implementation of embodiment 1, and the quick connector a is easy to insert and break, thereby improving the electrical safety.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides an keep apart processing system between two cores of module electric energy meter which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a management core module (100), a metering core module (200), a wireless module (300), and a power isolation module (400);
the management core module (100) and the metering core module (200) perform information interaction through the wireless module (300), and the management core module (100) and the metering core module (200) perform energy transmission through the power isolation module (400).
2. The system of claim 1, wherein the system comprises: the wireless module (300) comprises a first end (301) and a second end (302), the first end (301) being connected to the management core module (100) and the second end (302) being connected to the metering core module (200);
the first end (301) is wirelessly connected with the second end (302).
3. The system of claim 2, wherein the system comprises: the management core module (100) comprises a management core (101), a key (102), dot matrix liquid crystal (103) and a display interface (104), wherein the management core (101) is connected with the first end (301), and the display interface (104) is respectively connected with the key (102) and the dot matrix liquid crystal (103).
4. The system of claim 3, wherein the system comprises: the metering core module (200) comprises a metering core (201) and a mains supply access port (202), and the metering core (201) is connected with the second end (302).
5. The system of any one of claims 1 to 4, wherein the system comprises: the power isolation module (400) comprises a transformer (401), a first electric energy change (402) and a second electric energy change (403), wherein the transformer (401) is connected with the first electric energy change (402) and the second electric energy change (403) respectively.
6. The system of claim 5, wherein the system further comprises: the transformer (401) comprises a primary winding side (401a) and a secondary winding side (401b), the primary winding side (401a) is connected with the first electrical energy variation (402), and the secondary winding side (401b) is connected with the second electrical energy variation (403).
7. The system of claim 6, wherein the system comprises: the first power variation (402) is connected to the metering core module (200) and the second power variation (403) is connected to the management core module (100).
8. The system of claim 7, wherein the system comprises: the management core module (100) further comprises a first power interface (105), the metering core module (200) further comprises a second power interface (203), the first power interface (105) is connected with the first power variation (402), and the second power interface (203) is connected with the second power variation (403).
9. The system of claim 8, wherein the system further comprises: the power isolation module (400) further comprises a power isolation chip (404), the power isolation chip (404) isolating the primary winding side (401a) from the secondary winding side (401 b);
the power isolation chip (404) adopts a B1205LS-1WR2 chip.
10. The system of any one of claims 1 to 3 or 7 to 9, wherein the modular electric energy meter comprises two cores, and the system further comprises: the wireless module (300) adopts an FC6003 Bluetooth module.
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