CN120233130B - Anti-disassembly type shell and magnetic shielding integrated structure of three-phase electric energy meter - Google Patents
Anti-disassembly type shell and magnetic shielding integrated structure of three-phase electric energy meterInfo
- Publication number
- CN120233130B CN120233130B CN202510712233.2A CN202510712233A CN120233130B CN 120233130 B CN120233130 B CN 120233130B CN 202510712233 A CN202510712233 A CN 202510712233A CN 120233130 B CN120233130 B CN 120233130B
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- China
- Prior art keywords
- fixedly connected
- phase electric
- electric energy
- energy meter
- plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
本发明涉及三相电能表技术领域，且公开了三相电能表防拆式壳体与磁屏蔽一体化结构，包括三相电表体；通过利用支撑背板对主屏蔽罩进行支撑，利用主屏蔽罩抑制外部电磁干扰，确保高频谐波下的计量稳定性，通过防护板对螺栓进行隐藏式防护，减少螺栓受到外部液体颗粒物污染影响连接紧密性，同时通过使用特定工具打开连接槽对主安装孔内侧的螺栓进行拆卸安装，避免了外部可见固定点，防止私自拆卸，提高了该三相电能表的安全性；同时利用换热片对三相电表体进行降温，提高了三相电表体温度的稳定性，且利用两个环形片对电源线进行贴合，减少电源线晃动造成接口产生松动的情况；利用环形片内的冷却液对电源线的表面进行降温，降低了电源线的温度。
The present invention relates to the technical field of three-phase electric energy meters, and discloses an integrated structure of a three-phase electric energy meter with an anti-disassembly shell and a magnetic shield, including a three-phase electric energy meter body; a main shielding cover is supported by a supporting back plate, and external electromagnetic interference is suppressed by the main shielding cover to ensure metering stability under high-frequency harmonics; bolts are hiddenly protected by protective plates to reduce the impact of external liquid particulate contamination on the connection tightness of the bolts; at the same time, a connection groove is opened by using a specific tool to remove and install the bolts on the inner side of the main mounting hole, thereby avoiding external visible fixing points, preventing unauthorized disassembly, and improving the safety of the three-phase electric energy meter; at the same time, a heat exchange plate is used to cool the three-phase electric energy meter body, thereby improving the temperature stability of the three-phase electric energy meter body, and two annular plates are used to fit the power cord to reduce the loosening of the interface caused by the shaking of the power cord; the cooling liquid in the annular plate is used to cool the surface of the power cord to reduce the temperature of the power cord.
Description
Technical Field
The invention relates to the technical field of three-phase electric energy meters, in particular to an anti-disassembly shell and magnetic shielding integrated structure of a three-phase electric energy meter.
Background
The three-phase electric energy meter is used for measuring electric energy consumption in a three-phase alternating current circuit, can monitor parameters such as three-phase voltage, current and power simultaneously, calculates total power consumption, is important metering equipment in an electric power system, is widely applied to the fields of industry, business and large-scale infrastructures, and is used for bearing the basic function of accurate charging, improving the energy utilization efficiency and guaranteeing the power utilization safety through data analysis and assisting the construction of a smart power grid.
At present, the wiring terminals of some three-phase electric energy meters are protected by the wiring protection covers fixed by screws, and the wiring protection covers have the advantages of dust prevention, interference prevention, electric shock prevention and the like, but because the wiring protection covers are installed on the three-phase electric energy meters by screws, outsiders can easily take down the wiring protection covers by tools, so that risks of damaging internal equipment, electric shock and the like are caused, the safety of the three-phase electric energy meters is greatly reduced, and the wiring protection covers are relatively complicated to detach by the tools, so that the workload of workers is also increased.
Based on the technical problems, the prior art also provides solutions, for example, chinese patent publication No. CN119104761B discloses a three-phase electric energy meter, which comprises a body mechanism, wherein the body mechanism comprises a meter body, a wiring groove is arranged on the lower end surface of the meter body, an on-off mechanism is arranged in the meter body and comprises a conductive wire, a conductive hoop is connected outside the conductive wire in a sliding manner, an insulating sleeve is sleeved between every two conductive hoops, a wiring mechanism is arranged in the wiring groove and comprises a wiring block, a wiring hole penetrates through the wiring block, a power transmission line is arranged in each wiring hole, a protection mechanism is arranged in the wiring groove and comprises a protection plate, a pressing mechanism is arranged at the top of the protection plate and comprises a rotating head. The application has the advantages that the switch of the wiring protection cover can be controlled by sliding, and the connection of the wiring terminal can be cut off by sliding the wiring protection cover;
However, in actual production operation, the existing three-phase electric energy meter can be influenced by surrounding magnetic fields in the using process, strong electromagnetic fields can be coupled to signal lines of the sensor, sampling values deviate from real values, active power and reactive power calculation errors are caused, meanwhile, long-term electromagnetic interference can lead to performance degradation of filtering elements, anti-interference capability is reduced, the existing three-phase electric energy meter is low in protection, easy to disassemble privately, and low in safety.
Disclosure of Invention
The invention aims to provide an anti-disassembly shell and magnetic shielding integrated structure of a three-phase electric energy meter, which solves the problems that a strong electromagnetic field provided in the background technology can be coupled to a signal wire of a sensor to cause a sampling value to deviate from a true value, so that active power and reactive power calculation errors are caused, and meanwhile, long-term electromagnetic interference can cause performance degradation of a filter element to reduce anti-interference capability.
In order to solve the technical problems, the invention provides the following technical scheme:
The utility model provides a three-phase electric energy meter prevents tearing open formula casing and magnetism shielding integrated structure, includes the three-phase ammeter body, one side fixedly connected with power cord of the three-phase ammeter body, one side of the three-phase ammeter body is provided with the support backplate, one side of supporting the backplate is provided with main shield cover, main mounting hole has been seted up to one side of supporting the backplate, vice mounting hole has been seted up to one side of main shield cover, the spread groove has been seted up to the both sides of supporting the backplate, the side spacing square groove has been seted up to the inboard of spread groove, the inboard of spread groove is provided with the guard plate, the interior intercommunication square groove has been seted up on the surface of guard plate, the inboard of interior intercommunication square groove is provided with a spacing spring, the top fixedly connected with dysmorphism spacing post of top, one side of dysmorphism spacing post is the inclined plane, and the inclined plane of dysmorphism spacing post is just to one side of supporting the backplate.
Preferably, the top of the special-shaped limit column is provided with an adjusting hole, and one side of the side limit square groove is provided with a side communication frame.
Preferably, a side friction block is fixedly connected to one side of the protection plate, and the number of the side friction blocks is multiple.
Preferably, the inside fixedly connected with glass board of main shield cover, one side fixedly connected with main joint groove of main shield cover, the inboard of main joint groove has seted up interior slip rail, the inboard sliding connection of interior slip rail has the shield plate, the fixed surface of shield plate is connected with main friction block.
Preferably, the top of shielding plate fixedly connected with magnetism suction plate, one side fixedly connected with top metal piece of main shield cover.
Preferably, one side fixedly connected with of supporting backplate holds the liquid case, one side fixedly connected with play liquid pump of top holding the liquid case, one side fixedly connected with top connecting pipe of play liquid pump, the one end fixedly connected with radiator box of top connecting pipe, one side fixedly connected with side connecting pipe of radiator box, the one end fixedly connected with heat exchange box of side connecting pipe, one side fixedly connected with heat exchanger plate of heat exchange box, outer intercommunication frame has been seted up to one side of main shield cover, side recess has been seted up to one side of three-phase ammeter body.
Preferably, one side fixedly connected with fin of radiating box, one side fixedly connected with end connecting pipe of radiating box, the one end fixedly connected with first liquid reserve tank of end connecting pipe, one side fixedly connected with circulating pipe of first liquid reserve tank, one side fixedly connected with second liquid reserve tank of circulating pipe, one side fixedly connected with circulating pump of second liquid reserve tank, one side fixedly connected with liquid return pipe of circulating pump.
Preferably, the bottom of the main shielding case is fixedly connected with a bottom shielding case, and the bottom of the bottom shielding case is fixedly connected with a magnetic ring.
Preferably, one side of the first liquid storage tank and one side of the second liquid storage tank are fixedly connected with communicating pipes, one end of each communicating pipe is fixedly connected with an annular sheet, and two sides of the bottom shielding tank are provided with bottom communicating holes.
Preferably, one side fixedly connected with connecting rod of ring segment, the one end fixedly connected with regulating plate of connecting rod, one side fixedly connected with bottom limit spring of regulating plate.
Compared with the prior art, the invention has the following beneficial effects:
1. The main shielding cover is supported by the supporting backboard, external electromagnetic interference is restrained by the main shielding cover, metering stability under high-frequency harmonic waves is ensured, meanwhile, the whole supporting backboard is not required to be detached when a three-phase ammeter body needs to be observed, and the glass plate is shielded by the shielding board during daily placement, so that the integral electromagnetic interference resistance of the supporting backboard is improved;
2. The main mounting hole on the surface of the support backboard is connected with the wall reserved hole, the main mounting hole is fixedly arranged on one side of the wall surface by utilizing an external bolt, the bolt is hidden-type protected by the protection plate after the support backboard is fixed, the bolt is reduced from being polluted by external liquid particles to influence the connection compactness, and meanwhile, the bolt on the inner side of the main mounting hole is detached and installed by using a specific tool to open the connecting groove, so that an external visible fixed point is avoided, the private disassembly is prevented, and the safety of the three-phase electric energy meter is improved;
3. The heat exchange plates which are continuously cooled are utilized to cool the three-phase electric meter body, so that the stability of the temperature of the three-phase electric meter body during protection in the main shielding cover is improved, the condition that the temperature is continuously increased is reduced, meanwhile, the heat radiating area of the surface of the heat radiating box is increased through the heat radiating plates, the heat radiating effect of the heat radiating box is improved by utilizing the heat radiating plates, the stability of the temperature of liquid entering the heat radiating box is kept, and the cooling liquid in the second liquid storage box is driven to flow back to the top liquid storage box along the liquid return pipe to form circulation, and the cooling effect of the cooling liquid in the top liquid storage box on the three-phase electric meter body is improved;
4. After the two annular sheets are opened along the inner side of the bottom shielding box, the position of the power line on the inner side of the bottom shielding box is adjusted, the adjusting plate is loosened at the moment after the position of the power line is adjusted to be in a vertical state, the bottom limiting spring loses the external force limit and pushes the connecting rod to move along the inner side of the bottom communication hole, the annular sheets are driven to be in contact with the surface of the power line, the two annular sheets are utilized to attach the power line, the power line is limited, and the condition that the interface is loosened due to the fact that the power line is collided in the bottom shielding box by the external force is reduced;
5. meanwhile, when liquid flows along the inner sides of the first liquid storage tank and the second liquid storage tank, the liquid flows to the inner sides of the annular sheets along the communicating pipe, the annular sheets are in a hollow state, cooling liquid is continuously cooled after entering the inner sides of the annular sheets, the cooling liquid in the annular sheets is utilized to cool the surface of the power line after the annular sheets are used for laminating and limiting the surface of the power line, the condition that the temperature of the power line rises due to long-time operation is reduced, the stability of long-time operation temperature of the power line after the power line is connected with the three-phase ammeter body is improved, and the service life of the power line is prolonged.
Drawings
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic diagram of the overall separation structure of the present invention;
FIG. 3 is a schematic view of a main shield of the present invention;
FIG. 4 is a schematic view of a support back plate according to the present invention;
FIG. 5 is a schematic view of the structure of the main mounting hole of the present invention;
FIG. 6 is a schematic view of a special-shaped spacing column structure of the present invention;
FIG. 7 is a schematic view of a heat exchanger plate according to the present invention;
FIG. 8 is a schematic diagram of a heat dissipating box according to the present invention;
fig. 9 is a schematic diagram of a second tank structure according to the present invention.
The three-phase electricity meter comprises a 1-phase electricity meter body, a 2-phase electricity meter wire, a 301-phase back plate, a 302-phase main shielding cover, a 303-phase glass plate, a 304-phase main clamping groove, a 305-phase inner sliding rail, a 306-phase shielding plate, a 307-phase main friction block, a 308-phase magnetic attraction plate, a 309-phase top metal block, a 401-phase main mounting hole, a 402-phase auxiliary mounting hole, a 403-phase connecting groove, a 404-phase protection plate, 405-phase side friction block, 406-phase side limiting square groove, 407-phase side communicating frame, 408-phase inner communicating square groove, 409-phase top limiting spring, 4010, a special-phase limiting column, 4011, an adjusting hole, 5-phase magnetic ring, 601-phase top liquid storage tank, 602-phase liquid outlet pump, 603-phase top connecting pipe, 604, heat radiating tank, 605-phase radiating fin, 606-phase outer communicating frame, 607-phase side connecting pipe, 608-phase heat exchanging tank, 609, heat exchanging plate, 6011-phase heat exchanging plate, 6010, bottom connecting pipe 6011, first liquid storage tank, 6012, 6013, second tank, 6014-phase circulating pump, liquid storage 5, 6016-phase liquid storage tank, 6016, liquid storage tank, 6016-phase adjusting groove, 6016, side limiting groove, 401, side limiting groove, adjusting groove, 401, adjusting groove, and 702-phase connecting rod, 702, liquid storage tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the anti-disassembly type shell and magnetic shielding integrated structure of the three-phase electric energy meter comprises a three-phase electric energy meter body 1, wherein one side of the three-phase electric energy meter body 1 is fixedly connected with a power wire 2, one side of the three-phase electric energy meter body 1 is provided with a support backboard 301, one side of the support backboard 301 is provided with a main shielding cover 302, one side of the support backboard 301 is provided with a main mounting hole 401, one side of the main shielding cover 302 is provided with a secondary mounting hole 402, two sides of the support backboard 301 are provided with connecting grooves 403, the inner side of the connecting grooves 403 is provided with side limiting square grooves 406, the inner side of the connecting grooves 403 is provided with a protection plate 404, the surface of the protection plate 404 is provided with an inner connecting square groove 408, the inner side of the inner connecting square groove 408 is provided with a top limiting spring 409, the top of the top limiting spring 409 is fixedly connected with a special-shaped limiting post 4010, one side of the special-shaped limiting post 4010 is an inclined surface, and the inclined surface of the special-shaped limiting post 4010 is opposite to one side of the support backboard 301.
It should be noted that, when the special-shaped limit post 4010 moves, it drives the top limit spring 409 to generate compression deformation and enter the inner side of the inner communication square groove 408, at this time, after the special-shaped limit post 4010 moves out of the inner side of the side limit square groove 406, the protection plate 404 loses limit and can freely move out of the inner side of the connecting groove 403, after the support back plate 301 is fixed, the protection plate 404 is used for hiding the bolt, so that the connection tightness is affected by pollution of external liquid particles on the bolt is reduced.
In an alternative embodiment, the top of the special-shaped limit post 4010 is provided with an adjusting hole 4011, and one side of the side limit square groove 406 is provided with a side communication frame 407.
It should be noted that, when the protection plate 404 slides along one side of the connection groove 403, the special-shaped limit post 4010 at the top of the protection plate 404 contacts one side of the connection groove 403, one side of the special-shaped limit post 4010 is an inclined surface, and after the inclined surface of the special-shaped limit post 4010 contacts the connection groove 403, the special-shaped limit post 4010 is driven to move downwards and enter the inner side of the internal communication square groove 408 along with continuous pushing of the protection plate 404.
In an alternative embodiment, one side of the protection plate 404 is fixedly connected with side friction blocks 405, and the number of the side friction blocks 405 is a plurality.
It should be noted that, by pushing the protection plate 404 along one side of the connection groove 403, the friction force is increased by using the side friction blocks 405 on the surface of the protection plate 404, and the stability of the movement of the protection plate 404 is improved.
In an alternative embodiment, a glass plate 303 is fixedly connected to the inner side of the main shielding cover 302, a main clamping groove 304 is fixedly connected to one side of the main shielding cover 302, an inner sliding rail 305 is arranged on the inner side of the main clamping groove 304, a shielding plate 306 is connected to the inner side of the inner sliding rail 305 in a sliding manner, and a main friction block 307 is fixedly connected to the surface of the shielding plate 306.
It should be noted that, the operator presses the main friction blocks 307 on the surface of the shielding plate 306, and the friction force between the skin and the surface of the shielding plate 306 is improved by using the plurality of main friction blocks 307, and pushes the shielding plate 306 upward after pressing the main friction blocks 307, so that the shielding plate 306 moves vertically upward along the inner side of the main clamping groove 304, and exposes the glass plate 303, and the data displayed on the surface of the three-phase electric meter 1 can be observed by using the glass plate 303 in a portable manner.
In an alternative embodiment, a magnetic attraction plate 308 is fixedly connected to the top of the shield plate 306, and a top metal block 309 is fixedly connected to one side of the main shield 302.
It should be noted that, by driving the magnetic attraction plate 308 at the top of the shielding plate 306 to contact with the surface of the top metal block 309, the shielding plate 306 is limited at the bottom of the top metal block 309 by using the magnetic connection between the magnetic attraction plate 308 and the top metal block 309, so as to improve the stability of the shielding plate 306.
In an alternative embodiment, one side of the supporting backboard 301 is fixedly connected with a top liquid storage tank 601, one side of the top liquid storage tank 601 is fixedly connected with a liquid outlet pump 602, one side of the liquid outlet pump 602 is fixedly connected with a top connecting pipe 603, one end of the top connecting pipe 603 is fixedly connected with a heat dissipation tank 604, one side of the heat dissipation tank 604 is fixedly connected with a side connecting pipe 607, one end of the side connecting pipe 607 is fixedly connected with a heat exchange tank 608, one side of the heat exchange tank 608 is fixedly connected with a heat exchange plate 609, one side of the main shielding cover 302 is provided with an outer communication frame 606, and one side of the three-phase electric meter body 1 is provided with a side groove 6016.
It should be noted that, one side of the heat exchanging fin 609 is attached to the side groove 6016 on one side of the three-phase electric meter body 1, and the three-phase electric meter body 1 is cooled by the heat exchanging fin 609 with continuous cooling, so that the stability of the temperature of the three-phase electric meter body 1 during protection in the main shielding cover 302 is improved, and the condition that the temperature continuously rises is reduced.
In an alternative embodiment, one side of the heat radiation box 604 is fixedly connected with a heat radiation fin 605, one side of the heat radiation box 604 is fixedly connected with a bottom connecting pipe 6010, one end of the bottom connecting pipe 6010 is fixedly connected with a first liquid storage box 6011, one side of the first liquid storage box 6011 is fixedly connected with a circulating pipe 6012, one side of the circulating pipe 6012 is fixedly connected with a second liquid storage box 6013, one side of the second liquid storage box 6013 is fixedly connected with a circulating pump 6014, and one side of the circulating pump 6014 is fixedly connected with a liquid return pipe 6015.
It should be noted that, through the connection of the circulation pipe 6012, the liquid can enter the second liquid storage tank 6013, and is started by the circulation pump 6014, so as to drive the cooling liquid in the second liquid storage tank 6013 to flow back into the top liquid storage tank 601 along the liquid return pipe 6015 to form circulation, thereby improving the cooling effect of the cooling liquid in the top liquid storage tank 601 on the three-phase electric meter body 1.
In an alternative embodiment, the bottom of the main shielding case 302 is fixedly connected with a bottom shielding case 701, and the bottom of the bottom shielding case 701 is fixedly connected with a magnetic ring 5.
It should be noted that, when the power line 2 at the bottom of the three-phase electric meter body 1 extends along the bottom shielding case 701, the power line passes through the inner side of the magnetic ring 5, and the bottom shielding case 701 at one side of the magnetic ring 5 is utilized to improve the electromagnetic interference resistance of the magnetic ring 5.
In an alternative embodiment, a communicating pipe 703 is fixedly connected to one side of the first tank 6011 and one side of the second tank 6013, an annular plate 704 is fixedly connected to one end of the communicating pipe 703, and bottom communicating holes 702 are formed in both sides of the bottom shielding case 701.
The ring-shaped piece 704 is in a hollow state, the cooling liquid continuously cools after entering the inner side of the ring-shaped piece 704, the surface of the power line 2 is bonded and limited by the ring-shaped piece 704, and the surface of the power line 2 is cooled by the cooling liquid in the ring-shaped piece 704.
In an alternative embodiment, a connecting rod 705 is fixedly connected to one side of the annular piece 704, one end of the connecting rod 705 is fixedly connected to an adjusting plate 706, and a bottom limiting spring 707 is fixedly connected to one side of the adjusting plate 706.
It should be noted that, after the bottom limiting spring 707 loses the external force limit, the connecting rod 705 is pushed to move along the inner side of the bottom communication hole 702, and meanwhile, the ring-shaped pieces 704 are driven to contact the surface of the power line 2, the two ring-shaped pieces 704 are utilized to attach the power line 2, the power line 2 is limited, and the situation that the interface is loose due to shaking of the power line 2 in the bottom shielding box 701 caused by the collision of the external force is reduced.
The specific working steps of the anti-disassembly shell and magnetic shielding integrated structure of the three-phase electric energy meter are as follows:
By arranging the support backboard 301 and the main shielding case 302 on one side of the three-phase electric meter body 1, the support backboard 301 is utilized to support the main shielding case 302, the main shielding case 302 is utilized to inhibit external electromagnetic interference, the metering stability under high-frequency harmonic waves is ensured, when the main shielding case 302 is used for protecting the three-phase electric meter body 1, if data on the surface of the three-phase electric meter body 1 needs to be observed, an operator can improve the friction force between the skin and the surface of the shielding plate 306 by pressing the main friction blocks 307 on the surface of the shielding plate 306, push the shielding plate 306 upwards after pressing the main friction blocks 307, vertically move the shielding plate 306 along the inner side of the main clamping groove 304, and slide along the inner side of the inner sliding rail 305 by utilizing the two sides of the shielding plate 306 in the vertical movement process, the stability of vertical movement of the shielding plate 306 is improved, the magnetic attraction plate 308 at the top of the shielding plate 306 is driven to be in contact with the surface of the top metal block 309, the shielding plate 306 is limited at the bottom of the top metal block 309 by utilizing the magnetic connection of the magnetic attraction plate 308 and the top metal block 309, at the moment, the glass plate 303 on the surface of the main shielding cover 302 is exposed after the shielding plate 306 is lifted, the data displayed on the surface of the three-phase electric meter body 1 can be observed through the glass plate 303, the movable shielding plate 306 is utilized, the whole supporting backboard 301 does not need to be dismounted when the three-phase electric meter body 1 is required to be observed, and the glass plate 303 is shielded through the shielding plate 306 in daily placement, so that the integral electromagnetic interference resistance of the supporting backboard 301 is improved;
When the support backboard 301 and the main shielding cover 302 are installed on one side of the three-phase electric meter body 1, firstly, after the three-phase electric meter body 1 is placed on the inner side of the main shielding cover 302, the support backboard 301 is moved to one side surface of the main shielding cover 302, auxiliary installation holes 402 are respectively formed on the surfaces of the main shielding cover 302 and the support backboard 301, a plurality of auxiliary installation holes 402 are respectively connected by using external bolts, the main shielding cover 302 and the support backboard 301 are fastened and connected, after the support backboard 301 is placed on a wall surface to be installed, and a preformed hole consistent with the position of the main installation hole 401 is formed on the wall surface, the main installation hole 401 on the surface of the support backboard 301 is connected with the preformed hole on the wall surface, the main installation hole 401 is fixedly installed on one side of the wall surface by using the external bolts, after the installation is completed, the protection board 404 is pushed in along one side of the connecting groove 403, friction blocks 405 on the surface of the protection board 404 are respectively connected, when one side of the protection board 404 slides along the connecting groove 403, a special-shaped limit post 4010 on the top of the protection board 404 is in contact with the connecting groove 4010, the inner side of the special-shaped limit post 4010 is in contact with the inner side of the connecting groove 4010, the special-shaped limit post 4010 is continuously deformed along the inner side of the connecting groove 4010, after the inner side of the special-shaped limit post 4010 is continuously pushed down along the inner side of the connecting post 4010, the inner limit post 4010 is continuously, the contact with the inner limit post 4010 is continuously deformed, and the limit post 408 is continuously pushed down along the end of the limit post 4010, and the limit post is continuously, and the limit position of the limit post 408 is continuously, and the limit position is continuously, and the limit post is continuously, and the limit position is continuously, and the limit post is continuously, and the limit post is in, the top limit spring 409 resets and pushes the special-shaped limit post 4010 to move vertically upwards, the special-shaped limit post 4010 moves to the inner side of the side limit square groove 406 to limit the protection plate 404, at this time, the protection plate 404 is connected with the connecting groove 403, if the protection plate 404 needs to be opened to demount the bolt on the inner side of the main mounting hole 401, an operator needs to use an L-shaped tool, after the tool stretches into the side communication frame 407 along the side communication frame 407, the tool enters the inner side of the side limit square groove 406 along the side communication frame 407, at this time, one end of the tool contacts with the inner side of the adjusting hole 4011 and pushes downwards, the tool moves downwards along the side communication frame 407 and drives the special-shaped limit post 4010 to move downwards, the stability of the tool pushing the special-shaped limit column 4010 to move is improved by the aid of the arrangement of the adjusting holes 4011, the special-shaped limit column 4010 can drive the top limit spring 409 to generate compression deformation when moving and enter the inner side of the inner communication square groove 408, at the moment, after the special-shaped limit column 4010 moves out of the inner side of the side limit square groove 406, the protection plate 404 loses limit and can freely move out of the inner side of the connecting groove 403, after the support backboard 301 is fixed, the protection plate 404 is used for carrying out hidden protection on the bolts, the bolts are prevented from being influenced by pollution of external liquid particles, meanwhile, the bolts on the inner side of the main mounting hole 401 are detached and mounted by opening the connecting groove 403 by using a specific tool, external visible fixed points are avoided, private detachment is prevented, and the safety of the three-phase electric energy meter is improved;
When the main shielding cover 302 is used for protecting the three-phase electric meter body 1, the liquid outlet pump 602 is started to drive the cooling liquid in the top liquid storage tank 601 to enter the heat radiation tank 604 along the top connecting pipe 603, the liquid enters the heat radiation tank 604 and flows to the inner side of the heat exchange tank 608 along the side connecting pipe 607, the liquid entering the heat exchange tank 608 continuously cools the heat exchange plate 609, one side of the heat exchange plate 609 is attached to the side groove 6016 on one side of the three-phase electric meter body 1, the heat exchange plate 609 continuously cooled is used for cooling the three-phase electric meter body 1, the stability of the temperature of the three-phase electric meter body 1 during protection in the main shielding cover 302 is improved, the condition that the temperature continuously rises is reduced, meanwhile, the heat radiation area of the surface of the heat radiation tank 604 is increased through the heat exchange plate 605, the heat radiation effect of the heat radiation tank 604 is improved, the liquid enters the heat radiation tank 604 along the side connecting pipe 607, and flows back to the heat radiation tank 604 along the side of the heat exchange tank 608 and flows to the first tank 6011 along the bottom 6012, the liquid can enter the second liquid storage tank 6013 through the connection of the circulation pipe 6012, the circulating effect of the liquid 6013 is improved, and the liquid in the top liquid storage tank 601 is driven to flow back along the top cooling pipe 6015, and the cooling effect of the second liquid storage tank 601 is formed, and the cooling effect is improved;
Meanwhile, when the power line 2 at the bottom of the three-phase electric meter body 1 extends out along the bottom shielding box 701, the power line 2 passes through the inner side of the magnetic ring 5, the electromagnetic interference resistance of the magnetic ring 5 is improved by utilizing the bottom shielding box 701 at one side of the magnetic ring 5, when the power line 2 passes through the inner side of the bottom shielding box 701, firstly, an operator holds two adjusting plates 706 and pushes the adjusting plates 706 outwards, after the adjusting plates 706 move outwards along one side of the bottom shielding box 701, the bottom limiting springs 707 are driven to deform and compress, the connecting rods 705 are driven to move along the inner side of the bottom communication hole 702, the horizontal movement of the connecting rods 705 can drive the annular plates 704 to move along the inner side of the bottom shielding box 701, after the two annular plates 704 are opened along the inner side of the bottom shielding box 701, the position of the power line 2 is adjusted to be in a vertical state, at the moment, the adjusting plates 706 are released, at the moment, after the bottom limiting springs 707 lose external force limiting, the connecting rods 704 are driven to move along the inner side of the bottom communication hole 702, and meanwhile, the annular plates 704 are driven to contact with the surface of the power line 2, the two annular plates 704 are driven to make contact with the surface of the power line 2, the connecting plates 704, the annular plates are driven to move along the inner side of the bottom shielding box, the power line 2 is driven, and the inner side of the bottom shielding box is subjected to vibration, and the power line 2 is limited and the interface, and the condition of the power line 2 is reduced, and is subjected to vibration and loose;
Meanwhile, when liquid flows along the inner sides of the first liquid storage tank 6011 and the second liquid storage tank 6013, the liquid flows to the inner sides of the annular sheets 704 along the communicating pipe 703, the annular sheets 704 are in a hollow state, cooling liquid continuously cools after entering the inner sides of the annular sheets 704, the surface of the power line 2 is cooled by the annular sheets 704 after the surface of the power line 2 is bonded and limited, the cooling liquid in the annular sheets 704 cools the surface of the power line 2, the temperature rising condition of the power line 2 caused by long-time operation is reduced, the stability of long-time working temperature of the power line 2 after being connected with the three-phase electric meter body 1 is improved, and the service life of the power line 2 is prolonged.
The parts which are not described in detail in the invention are all the prior art, the corresponding model can be selected according to the actual requirement, the internal construction and the operation principle of the parts also belong to the common general knowledge of the person skilled in the art, and the description is not repeated.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit thereof, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063042Y (en) * | 2007-06-05 | 2008-05-21 | 陶齐雄 | Multifunctional direct input type three-phase meter case for preventing fraudulent use |
| CN215910543U (en) * | 2021-03-23 | 2022-02-25 | 南方电网科学研究院有限责任公司 | Electric meter box capable of preventing strong magnetic interference |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4887029A (en) * | 1988-03-18 | 1989-12-12 | Westinghouse Electric Corp. | Mutual inductance current transducer, method of making and electric energy meter incorporating same |
| CN222214848U (en) * | 2024-04-15 | 2024-12-20 | 合肥云硕电气成套设备有限公司 | Integrated switch board mounting structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063042Y (en) * | 2007-06-05 | 2008-05-21 | 陶齐雄 | Multifunctional direct input type three-phase meter case for preventing fraudulent use |
| CN215910543U (en) * | 2021-03-23 | 2022-02-25 | 南方电网科学研究院有限责任公司 | Electric meter box capable of preventing strong magnetic interference |
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