CN117214493B - Junction box structure for electric energy meter - Google Patents
Junction box structure for electric energy meter Download PDFInfo
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- CN117214493B CN117214493B CN202311340325.XA CN202311340325A CN117214493B CN 117214493 B CN117214493 B CN 117214493B CN 202311340325 A CN202311340325 A CN 202311340325A CN 117214493 B CN117214493 B CN 117214493B
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- 238000005452 bending Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000012857 repacking Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The application relates to a junction box structure for an electric energy meter, which relates to the technical field of electric energy metering and comprises a box body and a box cover, wherein a mounting cavity and a fixed shell positioned in the mounting cavity are arranged in the box body, a plurality of junction terminals are arranged in the fixed shell, and a plurality of junction blocks are arranged on the junction terminals; a plurality of current connecting pieces and voltage connecting pieces are arranged in the wiring terminal; one end of the current connecting piece is provided with a bending part, the current connecting piece is provided with a sliding through hole for a wiring block to penetrate, and the end part of the current connecting piece, which is far away from the bending part, is provided with a connecting hole for inserting the wiring block on an adjacent wiring terminal; the box cover is provided with an error-proofing block which can be abutted against the side surface of the bending part, which is far away from the current connecting sheet; due to the matching arrangement of the current connecting piece and the error-proofing block, the possibility that the current connecting piece in the electric energy meter is forgotten to reset after replacement is reduced, and the possibility of electric quantity loss is also reduced.
Description
Technical Field
The application relates to the technical field of electric energy metering, in particular to a junction box structure for an electric energy meter.
Background
The electric energy meter is a device for measuring electric energy output by a power supply in a circuit or electric energy consumed by a load, and is provided with a junction box which is connected between a power grid and an electric energy meter body and used for realizing the functions of overhauling the electric energy meter and the like. When the fault electric energy meter is replaced, the metering team personnel of each power supply company often receive a work task list, and when the fault electric energy meter is replaced, the work task list cannot be replaced after power failure measures are adopted due to influences of a power supply mode or the electricity consumption property of a customer.
In the related art, the meter comprises a meter main body and a plurality of wiring terminals, wherein a plurality of wiring screws are arranged on the same wiring terminal, a plurality of current connecting pieces and voltage connecting pieces are arranged inside the meter, the current in a circuit is led into the electric energy meter by the current connecting pieces, so that the current can be measured, the voltage connecting pieces are connected to the circuit of the electric energy meter, and the electric energy meter can acquire voltage signals in the circuit.
During normal operation, a current connecting sheet in the electric energy meter is in a disconnected state with a wiring screw on an adjacent wiring terminal, and a voltage connecting sheet in the electric energy meter is in a communicated state with the adjacent wiring screw on the same wiring terminal, so that the monitoring of the current and the voltage of the electric energy meter by the meter is ensured; when the electric energy meter is replaced, the voltage connecting piece which is originally communicated with the adjacent connecting screw on the same connecting terminal is disconnected, the original current connecting piece is in short circuit with the connecting screw on the adjacent connecting terminal, and then the subsequent electric energy meter can be replaced without power-off.
Although the electric energy meter can be continuously replaced by adopting the replacement mode, due to the fact that the number of procedures operated during replacement is relatively large, workers possibly forget to reset the current connecting sheet after the replacement of the electric energy meter is finished, and due to the fact that the current connecting sheet is in a short circuit state during replacement of the electric energy meter, the short circuit of the current connecting sheet bypasses the electric energy meter, when the replacement of the electric energy meter is finished but the replacement of the current connecting sheet is forgotten, current used by a user cannot pass through the electric energy meter at the moment, namely the electricity consumption of the user cannot be monitored, electric quantity loss can be caused, and improvement space exists.
Disclosure of Invention
The application aims to provide a junction box structure for an electric energy meter, which solves the problems that in the related art, due to a relatively large number of working procedures in replacement, a worker may forget to reset a current connecting sheet after the electric energy meter is replaced, and due to the fact that the current connecting sheet is in a short circuit state when the electric energy meter is replaced, current can bypass the electric energy meter due to the short circuit of the current connecting sheet; when the electric energy meter is replaced but the current connecting sheet is forgotten to be reset, the current used by the user cannot pass through the electric energy meter, namely the electricity consumption of the user cannot be monitored, and the problem of electricity loss can be caused.
The application provides a junction box structure for an electric energy meter, which adopts the following technical scheme:
the junction box structure for the electric energy meter comprises a box body and a box cover, wherein a mounting cavity and a fixing shell positioned in the mounting cavity are arranged in the box body, a plurality of wiring terminals are arranged in the fixing shell, and a plurality of wiring blocks are arranged on the wiring terminals; a plurality of current connecting pieces and voltage connecting pieces are arranged in the wiring terminal, and wire inlet holes and wire outlet holes communicated with the mounting cavity are respectively formed in two opposite sides of the box body; one end of the current connecting piece is provided with a bending part which is bent upwards, the current connecting piece is provided with a sliding through hole for the connection block to penetrate, and the end part of the current connecting piece, which is far away from the bending part, is provided with a connecting hole for the connection block on the adjacent connection terminal to be inserted; the box cover is provided with an error-proofing block, and the error-proofing block can be abutted with the side surface of the bending part, which is far away from the current connecting sheet.
Through adopting above-mentioned technical scheme, because the cooperation setting of current connection piece and mistake proofing piece, when the electric energy meter is after changing and is had forgotten to reset voltage connection piece or current connection piece, the junction block on the adjacent binding post inserts in the connecting hole, when closing the lid this moment, the mistake proofing piece on the lid and the side butt that the current connection piece was kept away from to the portion of bending, lid and box body can not close smoothly promptly, can in time discover after this condition that the current connection piece has not reset, thereby reduce the electric energy meter and change the inside current connection piece of back strapping table and forget the possibility that resets, also reduce the possibility of electric quantity loss simultaneously.
Optionally, lead sealing screws for fixing the box cover and the box body are arranged on the side face of the box cover.
By adopting the technical scheme, the lead sealing screw can provide an effective safe sealing mechanism so as to prevent unauthorized personnel from tampering or illegal operation of the meter. Lead seal screws are typically made of special lead materials that are highly corrosion resistant and difficult to break, thus protecting the integrity of the meter.
Optionally, the inside of box body is equipped with locking component, locking component is including fixing the lock ear on the lid and fixing in the box body inside and be used for locking the locking piece of lock ear.
Through adopting above-mentioned technical scheme, because the cooperation setting of locking piece and lock ear to this is further locked through lead sealing screw box body and lid, reduces the possibility that independent people etc. violent dismantles the repacking with the measuring box, improves the protection to the measuring box.
Optionally, the locking piece includes lock body and spring bolt, set up the locking groove that supplies the spring bolt male on the lock ear, the inside of box body is equipped with the sensing piece that is used for responding to lead seal screw locking and makes the locking piece start.
By adopting the technical scheme, due to the arrangement of the sensing piece, after the sensing piece monitors that the lead sealing screw fixes the box body and the box cover, the lock body is started, and meanwhile, the lock tongue on the lock body is inserted into the corresponding locking groove; when the sensing piece monitors that the lead sealing screw unlocks the box body and the box cover, the lock tongue on the lock body is separated from the locking groove on the lock lug; with this setting, only the staff will lead to seal the screw unblock just can open box body and lid, reduces the possibility that irrelevant personnel's violence repacking the strapping table.
Optionally, the side that the box body kept away from the lid is equipped with the guard plate, the side that the box body kept away from the lid is equipped with the installation heavy groove that supplies the guard plate embedding.
Through adopting above-mentioned technical scheme, owing to the setting of the heavy groove of installation, can install the guard plate and fix the heavy inslot portion of installation at the box body bottom side, through the setting of guard plate, reduce irrelevant personnel and punch the condition emergence of short circuit current signal electricity stealing from the bottom side of box body simultaneously.
Optionally, the protection plate is arranged in a double-layer manner and is made of steel.
Through adopting above-mentioned technical scheme, because the guard plate is double-deck setting and is steel, reduce the possibility that independent people etc. are unfavorable to punch from the bottom side of box body and steal the electricity, further strengthen the protection to this measurement box.
Optionally, an isolation space is reserved between the inner wall of the installation cavity, which is close to the wire inlet hole and the wire outlet hole, and the outer side surface of the fixed shell.
By adopting the technical scheme, due to the arrangement of the isolation space, the possibility that the electric larceny is implemented by irrelevant people and the like from the wire inlet holes or the wire outlet Kong Duanjie current signals by utilizing the short wires is reduced, and the safety protection of the metering box is further improved.
Optionally, a partition plate is arranged at the side edge of the fixing shell, and a fixing assembly for locking the current connecting sheet is arranged on the partition plate.
Through adopting above-mentioned technical scheme, because fixed subassembly's setting on the division board, further lock the installation to the current connection piece, reduce the electric energy meter and change the inside current connection piece of back strapping table and forget the possibility that resets, also reduce the possibility that the electric quantity runs off simultaneously.
Optionally, the fixing component comprises a fixing rod, a pressure spring and a handle, the partition plate is provided with a fixing hole for the fixing rod to penetrate, the pressure spring is in a stretching state and sleeved on the outer peripheral surface of the fixing rod, and two ends of the pressure spring are fixedly connected with the handle and the partition plate respectively far away from the side surface of the bending part; be equipped with the stopper on the dead lever, offer on the opening inner wall of fixed orifices and supply stopper male and gliding guiding hole, the opening border that the fixed orifices kept away from the portion of bending is equipped with and supplies stopper male spacing groove, the dead lever is kept away from the tip of handle and is connected with the rotation of the portion of bending, the tip that the dead lever was kept away from to the handle can be close to box body butt with the lid.
Through adopting above-mentioned technical scheme, when needing to change the electric energy meter, deviate from the stopper on the handle from the spacing inslot first, rotate the handle that length direction and box body bottom side are parallel, the handle rotates to the state perpendicular with the box body bottom side this moment, makes the stopper can insert in the guiding hole on the fixed orifices inner wall, makes the dead lever wholly move to the direction that is close to the current connection piece under the effect of being in tensile state pressure spring this moment; after the electric energy meter is replaced and when the current connecting sheet is not reset, the box cover is abutted with the handle, the box cover and the box body cannot be assembled and fixed, the possibility that the current connecting sheet in the meter forgets to reset after the electric energy meter is replaced is further reduced, and meanwhile the possibility of electric quantity loss is also reduced.
Optionally, the end that the handle kept away from the dead lever is equipped with bee calling organ and is used for controlling bee calling organ's micro-gap switch, the last control button of micro-gap switch can with lid butt.
Through adopting above-mentioned technical scheme, after the electric energy meter is changed and when not resetting the current connection piece, lid and the button butt of micro-gap switch on the handle this moment can cause bee calling organ to make a sound to this reminds the staff current connection piece not to reset.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Because the cooperation setting of electric current connection piece and mistake proofing piece, when the electric energy meter was probably forgotten to reset voltage connection piece or electric current connection piece after finishing changing, the wiring piece on the adjacent binding post inserts in the connecting hole, when closing the lid this moment, the mistake proofing piece on the lid and the side butt that the electric current connection piece was kept away from to the portion of bending, can not close smoothly promptly lid and box body, can in time discover after this condition that the electric current connection piece does not reset to this reduces electric energy meter and changes the inside electric current connection piece of back strapping table and forgets the possibility that resets, also reduces the possibility of electric quantity loss simultaneously.
2. Due to the arrangement of the sensing piece, after the sensing piece monitors that the lead sealing screw fixes the box body and the box cover, the lock body is started, and meanwhile, the lock tongue on the lock body is inserted into the corresponding locking groove; when the sensing piece monitors that the lead sealing screw unlocks the box body and the box cover, the lock tongue on the lock body is separated from the locking groove on the lock lug; with this setting, only the staff will lead to seal the screw unblock just can open box body and lid, reduces the possibility that irrelevant personnel's violence repacking the strapping table.
3. Due to the arrangement of the fixing assembly, when the electric energy meter needs to be replaced, the limiting block on the handle is firstly separated from the inside of the limiting groove, the handle with the length direction parallel to the bottom side surface of the box body is rotated, the handle is rotated to be perpendicular to the bottom side of the box body, the limiting block can be inserted into the guide hole on the inner wall of the fixing hole, and the whole fixing rod is enabled to move towards the direction close to the current connecting sheet under the action of the compression spring in the stretching state; after the electric energy meter is replaced and when the current connecting sheet is not reset, the box cover is abutted with the handle, the box cover and the box body cannot be assembled and fixed, the possibility that the current connecting sheet in the meter forgets to reset after the electric energy meter is replaced is further reduced, and meanwhile the possibility of electric quantity loss is also reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;
fig. 2 is a schematic cross-sectional view of the mounting fitting of the shield plate according to embodiment 1 of the present application;
FIG. 3 is a schematic view of a partial cross-sectional structure of an embodiment 1 embodying the fitting of a current connection piece during normal operation of a meter;
FIG. 4 is a schematic view of a partial cross-sectional structure of an embodiment 1 of the present application showing the installation and fitting of a current connection piece during replacement of an electric meter box;
FIG. 5 is a schematic view of a partial cross-sectional structure of an embodiment 1 embodying the voltage connection pad mounting engagement of a meter in normal operation;
FIG. 6 is a schematic view of a partial cross-sectional structure of an embodiment 1 of the present application showing the mounting engagement of a voltage connection piece during replacement of an electric meter box;
FIG. 7 is a schematic view of a partial cross-sectional structure of an embodiment 1 embodying a lead seal screw mounting fit of the present application;
FIG. 8 is a schematic view in partial cross-section of an embodiment 1 embodying a lock assembly mounting fit of the present application;
FIG. 9 is a schematic view showing a partial structure of a fixing assembly mounting engagement according to embodiment 2 of the present application;
FIG. 10 is a schematic view in partial cross-section showing the mounting engagement of a stationary assembly during normal operation of a meter in accordance with embodiment 2 of the present application;
Fig. 11 is a schematic view showing a partially sectional structure of the fixing assembly mounting engagement at the time of replacement of an electric meter box according to embodiment 2 of the present application.
In the figure, 1, a box body; 11. a mounting cavity; 12. a fixed case; 13. a connection terminal; 131. a junction block; 14. a wire inlet hole; 15. a wire outlet hole; 16. installing a sinking groove; 17. a first threaded hole; 18. a partition plate; 181. a fixing hole; 182. a guide hole; 183. a limit groove; 2. a box cover; 21. an error-proofing block; 22. lead sealing screws; 23. a first through hole; 3. a protection plate; 4. a current connection piece; 41. a bending part; 42. a sliding through hole; 43. a connection hole; 5. a voltage connection piece; 6. a locking assembly; 61. a locking lug; 611. a locking groove; 62. a locking member; 621. a lock body; 622. a bolt; 63. an induction member; 7. a fixing assembly; 71. a handle; 711. a placement groove; 72. a fixed rod; 721. a limiting block; 73. a pressure spring; 74. a buzzer; 75. and a micro-switch.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 and 2, a junction box structure for an electric energy meter comprises a box body 1 and a box cover 2, wherein a mounting cavity 11 and a fixing shell 12 positioned in the mounting cavity 11 are arranged in the box body 1, a plurality of wiring terminals 13 are arranged in the fixing shell 12, meanwhile, wiring blocks 131 are arranged on the wiring terminals 13, wire inlet holes 14 and wire outlet holes 15 which are communicated with the mounting cavity 11 are respectively arranged on two opposite sides of the box body 1, and a cable is connected from the wire inlet holes 14 on the box body 1 and is connected from the wire inlet holes 14 on the box body 1.
Referring to fig. 2, the side that lid 2 was kept away from to box body 1 is equipped with guard plate 3, and wherein guard plate 3 bilayer sets up and is steel, and the side that lid 2 was kept away from to box body 1 is equipped with the heavy groove 16 of installation that supplies guard plate 3 embedding, and after guard plate 3 embeds the heavy inslot 16 of installation to it is further fixed through glue, so realize that guard plate 3 and box body 1's equipment is fixed, and through guard plate 3's setting, reduce the condition emergence that irrelevant personnel perforated short circuit current signal steal from the bottom side of box body 1. And the inner wall of the installation cavity 11, which is close to the wire inlet hole 14 and the wire outlet hole 15, and the outer side surface of the fixed shell 12 are reserved with an isolation space, and due to the arrangement of the isolation space, irrelevant people and the like are prevented from carrying out electricity stealing actions by utilizing short-circuit wires to short-circuit current signals from the wire inlet hole 14 or the wire outlet hole 15.
Referring to fig. 2 and 3, three current connection pieces 4 and three voltage connection pieces 5 are provided inside the connection terminal 13, and a plurality of partition plates 18 are provided on the upper side surface of the fixed housing 12, and the connection blocks 131 on different connection terminals 13 are partitioned by the partition plates 18; wherein one end of the current connecting piece 4 is provided with a bending part 41 which is bent upwards, the current connecting piece 4 is provided with a sliding through hole 42 for the connection block 131 to penetrate, the edge of the end part of the current connecting piece 4 far away from the bending part 41 is provided with a connecting hole 43 for the connection block 131 to be inserted into the adjacent connection terminal 13, and the section shape of the sliding through hole 42 is waist-shaped.
Referring to fig. 3 and 4, an error-proofing block 21 is provided on the box cover 2, wherein the box cover 2 and the error-proofing block 21 are integrally injection molded; the error preventing block 21 can abut against the side surface of the bending portion 41 away from the current connecting piece 4; in the normal operation state of the meter, the whole current connecting sheet 4 moves in the direction away from the adjacent connecting terminal 13, so that the connecting block 131 on the adjacent connecting terminal 13 is not inserted into the connecting hole 43, and the error preventing block 21 is attached to the side face of the bending part 41 after the box body 1 (see fig. 2) is assembled with the box cover 2; when the electric energy meter needs to be replaced, the current connecting sheet 4 is short-circuited, so that the whole current connecting sheet 4 moves towards the direction close to the adjacent wiring terminal 13, and the wiring block 131 on the adjacent wiring terminal 13 is inserted into the connecting hole 43, thereby facilitating the subsequent replacement of the electric energy meter; after the replacement of the electric energy meter is completed, if the worker forgets to reset the current connecting sheet 4 and directly assembles the box cover 2 and the box body 1 (see fig. 2), the lower side surface of the error proofing block 21 is abutted against the upper side surface of the bending part 41, and the box body 1 (see fig. 2) and the box cover 2 cannot be assembled smoothly, so that the worker is reminded.
Referring to fig. 5 and 6, the voltage connection piece 5 has the same structure as the current connection piece 4 (see fig. 3), and the voltage connection piece 5 is also provided with a sliding through hole 42 and a connection hole 43. In the normal operation state of the meter, the installation direction of the voltage connecting piece 5 is parallel to the length direction of the connecting terminal 13, and the other adjacent connecting block 131 on the same connecting terminal 13 is inserted into the connecting hole 43 on the voltage connecting piece 5, so that the connection of the voltage connecting piece 5 is realized; when the electric energy meter needs to be replaced, the voltage connecting sheet 5 is integrally moved, so that the wiring block 131 is separated from the connecting hole 43, and the subsequent replacement of the electric energy meter is facilitated; after the replacement of the electric energy meter is completed, if the worker forgets to reset the voltage connecting piece 5 and directly assembles the box cover 2 and the box body 1 (see fig. 2), the lower side surface of the error proofing block 21 is abutted against the upper side surface of the bending part 41 on the voltage connecting piece 5, and the box body 1 (see fig. 2) and the box cover 2 cannot be assembled smoothly.
Referring to fig. 7, two lead sealing screws 22 for fixing the box cover 2 and the box body 1 are oppositely arranged on the side surface of the box cover 2, wherein a first through hole 23 for the lead sealing screws 22 to penetrate is arranged on the box cover 2, and a first threaded hole 17 coaxial with the first through hole 23 is arranged on the box body 1; when the voltage connection piece 5 (see fig. 2) and the current connection piece 4 (see fig. 2) are replaced and reset smoothly, the box cover 2 is placed on the upper side of the box body 1, and meanwhile, the lead sealing screw 22 penetrates through the first through hole 23 and then is screwed into the corresponding first threaded hole 17, so that the box body 1 and the box cover 2 are assembled and fixed.
Referring to fig. 7 and 8, the inside of the case 1 is provided with a locking assembly 6, wherein the locking assembly 6 includes two locking lugs 61 fixed to the case cover 2 and a locking piece 62 fixed to the inside of the case 1 for locking the locking lugs 61; the two locking lugs 61 are oppositely arranged on the side edge of the box cover 2, which is close to the box body 1, and meanwhile, the locking lugs 61 and the box cover 2 are integrally injection molded; the locking piece 62 comprises a lock body 621 and a lock tongue 622 which are fixed in the box body 1, a locking groove 611 into which the lock tongue 622 is inserted is formed in the lock lug 61, and the whole locking piece 62 is an electronic lock, and is of a conventional structure and will not be described again; the inside of the box body 1 is also provided with a sensing piece 63 for sensing the locking of the lead sealing screw 22 and enabling the locking piece 62 to be started, and the sensing piece 63 is a platy electronic lead sealing sensor; when the sensing piece 63 detects that the lead sealing screw 22 fixes the box body 1 and the box cover 2, the lock body 621 is started, and meanwhile, the lock tongue 622 on the lock body 621 is inserted into the corresponding locking groove 611; when the sensing piece 63 detects that the lead sealing screw 22 unlocks the box body 1 and the box cover 2, the lock tongue 622 on the lock body 621 is separated from the locking groove 611 on the lock lug 61.
The implementation principle of the embodiment of the application is as follows:
When the electric energy meter needs to be replaced, the current connecting piece 4 is short-circuited, so that the current connecting piece 4 integrally moves in the direction close to the adjacent connecting terminal 13, the connecting blocks 131 on the adjacent connecting terminal 13 are inserted into the connecting holes 43, the voltage connecting piece 5 integrally moves, the connecting blocks 131 on the same connecting terminal 13 are separated from the connecting holes 43, and the subsequent replacement of the electric energy meter is facilitated; after the replacement of the electric energy meter is completed, if the worker forgets to reset the current connecting piece 4 and the voltage connecting piece 5 and directly assemble the box cover 2 with the box body 1, the lower side surface of the error preventing block 21 is abutted against the upper side surface of the corresponding bending part 41, and the box body 1 and the box cover 2 cannot be assembled smoothly.
When the voltage connecting piece 5 and the current connecting piece 4 are smoothly reset after the electric energy meter is replaced, the box cover 2 is placed on the upper side of the box body 1, and meanwhile, the lead sealing screw 22 penetrates through the first through hole 23 and is screwed into the corresponding first threaded hole 17; when the sensing piece 63 detects that the lead sealing screw 22 fixes the box body 1 and the box cover 2, the lock body 621 is started, and meanwhile, the lock tongue 622 on the lock body 621 is inserted into the corresponding locking groove 611; when the sensing piece 63 detects that the lead sealing screw 22 unlocks the box body 1 and the box cover 2, the lock tongue 622 on the lock body 621 is separated from the locking groove 611 on the lock lug 61.
Example 2:
Referring to fig. 9 and 10, the difference between the embodiment of the present application and embodiment 1 is that the partition plate 18 is provided with a fixing component 7 for locking the current connection piece 4, wherein the fixing component 7 includes a fixing rod 72, a pressure spring 73 and a handle 71, the partition plate 18 is provided with a fixing hole 181 for the fixing rod 72 to penetrate, the pressure spring 73 is in a stretched state and is sleeved on the outer peripheral surface of the fixing rod 72, and two ends of the pressure spring 73 are respectively fixedly connected with the handle 71 and the side surface of the partition plate 18 away from the bending portion 41.
Referring to fig. 10 and 11, a stopper 721 is provided on the fixing rod 72, the stopper 721 and the fixing rod 72 are integrally injection molded, a guide hole 182 into which the stopper 721 is inserted and slides is provided on an opening inner wall of the fixing hole 181, a stopper groove 183 into which the stopper 721 is inserted is provided at an opening edge of the fixing hole 181 away from the bending portion 41, an end of the fixing rod 72 away from the handle 71 is rotatably connected with the bending portion 41, and an end of the handle 71 away from the fixing rod 72 can be abutted with the box cover 2 (see fig. 8) near the box body 1.
When the electric energy meter needs to be replaced, the limiting block 721 on the handle 71 is firstly separated from the limiting groove 183, the handle 71 with the length direction parallel to the bottom side surface of the box body 1 is rotated, at the moment, the handle 71 is rotated to be perpendicular to the bottom side surface of the box body 1, the limiting block 721 can be inserted into the guide hole 182 on the inner wall of the fixing hole 181, at the moment, under the action of the compression spring 73 in a stretching state, the whole fixing rod 72 is moved in the direction close to the current connecting sheet 4, and after the current connecting sheet 4 is moved, part of the limiting block 721 is still in the guide hole 182; after the replacement of the electric energy meter is completed and when the current connecting piece 4 is not reset, the box cover 2 is abutted against the handle 71, and the box cover 2 (see fig. 8) and the box body 1 cannot be assembled and fixed.
Referring to fig. 11, a buzzer 74 and a micro switch 75 for controlling the buzzer 74 are provided at an end of the handle 71 far from the fixing rod 72, the buzzer 74 and the micro switch 75 are of a conventional structure, which will not be described herein, a placement groove 711 for mounting the buzzer 74 and the micro switch 75 is provided at an end of the handle 71, and a control button of the micro switch 75 exposed at an outer side surface of the handle 71 can be abutted against the box cover 2; after the replacement of the electric energy meter is completed and when the current connecting piece 4 is not reset, the length direction of the handle 71 is perpendicular to the bottom side surface of the box body 1, and at the moment, the box cover 2 (see fig. 8) abuts against a button of the micro switch 75 on the handle 71 when the box body 1 is closed, so that the buzzer 74 sounds, and the worker is reminded that the current connecting piece 4 is not reset.
Unless defined otherwise, terms or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like, as used in this specification, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. The junction box structure for the electric energy meter comprises a box body (1) and a box cover (2), wherein a mounting cavity (11) and a fixed shell (12) positioned in the mounting cavity (11) are arranged in the box body (1), a plurality of wiring terminals (13) are arranged in the fixed shell (12), and a plurality of wiring blocks (131) are arranged on the wiring terminals (13); a plurality of current connecting pieces (4) and voltage connecting pieces (5) are arranged in the wiring terminal (13), and wire inlet holes (14) and wire outlet holes (15) which are communicated with the mounting cavity (11) are respectively arranged on two opposite sides of the box body (1);
The connecting structure is characterized in that one end of the current connecting sheet (4) is provided with a bending part (41) which is bent upwards, the current connecting sheet (4) is provided with a sliding through hole (42) for a wiring block (131) to penetrate, and the end part of the current connecting sheet (4) far away from the bending part (41) is provided with a connecting hole (43) for inserting the wiring block (131) on an adjacent wiring terminal (13); an error-proofing block (21) is arranged on the box cover (2), and the error-proofing block (21) can be abutted with the side surface of the bending part (41) far away from the current connecting sheet (4);
A separation plate (18) is arranged at the side edge of the fixed shell (12), and a fixed assembly (7) for locking the current connecting sheet (4) is arranged on the separation plate (18); the fixing assembly (7) comprises a fixing rod (72), a pressure spring (73) and a handle (71), wherein a fixing hole (181) for the fixing rod (72) to penetrate is formed in the partition plate (18), the pressure spring (73) is in a stretching state and is sleeved on the outer peripheral surface of the fixing rod (72), and two end parts of the pressure spring (73) are fixedly connected with the handle (71) and the side surface, far away from the bending part (41), of the partition plate (18) respectively;
The fixing rod (72) is provided with a limiting block (721), the inner wall of the opening of the fixing hole (181) is provided with a guide hole (182) for the limiting block (721) to insert and slide, the edge of the opening of the fixing hole (181) away from the bending part (41) is provided with a limiting groove (183) for the limiting block (721) to insert, the end of the fixing rod (72) away from the handle (71) is rotationally connected with the bending part (41), and the end of the handle (71) away from the fixing rod (72) can be abutted with the box cover (2) close to the box body (1);
The end part of the handle (71) far away from the fixed rod (72) is provided with a buzzer (74) and a micro switch (75) for controlling the buzzer (74), and a control button on the micro switch (75) can be abutted with the box cover (2).
2. Junction box structure for electric energy meters according to claim 1, characterized in that the side of the box cover (2) is provided with a lead sealing screw (22) for fixing the box cover (2) and the box body (1).
3. Junction box structure for electric energy meters according to claim 2, characterized in that the interior of the box body (1) is provided with a locking assembly (6), the locking assembly (6) comprising a locking lug (61) fixed on the box cover (2) and a locking piece (62) fixed inside the box body (1) for locking the locking lug (61).
4. A junction box structure for an electric energy meter according to claim 3, characterized in that the locking member (62) comprises a lock body (621) and a lock tongue (622), the lock ear (61) is provided with a locking groove (611) into which the lock tongue (622) is inserted, and the inside of the box body (1) is provided with an induction member (63) for inducing the lead sealing screw (22) to lock and enabling the locking member (62) to be started.
5. The junction box structure for the electric energy meter according to claim 1, wherein a protection plate (3) is arranged on the side surface, away from the box cover (2), of the box body (1), and an installation sink (16) for embedding the protection plate (3) is arranged on the side surface, away from the box cover (2), of the box body (1).
6. Terminal block structure for electric energy meters according to claim 5, characterized in that the protection plate (3) is double-layered and of steel material.
7. The junction box structure for the electric energy meter according to claim 1, wherein an isolation space is reserved between the inner wall of the installation cavity (11) close to the wire inlet hole (14) and the wire outlet hole (15) and the outer side surface of the fixed shell (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311340325.XA CN117214493B (en) | 2023-10-16 | 2023-10-16 | Junction box structure for electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311340325.XA CN117214493B (en) | 2023-10-16 | 2023-10-16 | Junction box structure for electric energy meter |
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| CN117214493A CN117214493A (en) | 2023-12-12 |
| CN117214493B true CN117214493B (en) | 2024-04-30 |
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| CN202311340325.XA Active CN117214493B (en) | 2023-10-16 | 2023-10-16 | Junction box structure for electric energy meter |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117214493A (en) | 2023-12-12 |
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