CN107918038B - Switch type phase sequence switching combined junction box - Google Patents
Switch type phase sequence switching combined junction box Download PDFInfo
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- CN107918038B CN107918038B CN201710335906.2A CN201710335906A CN107918038B CN 107918038 B CN107918038 B CN 107918038B CN 201710335906 A CN201710335906 A CN 201710335906A CN 107918038 B CN107918038 B CN 107918038B
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- 238000000819 phase cycle Methods 0.000 title claims abstract description 69
- 238000009413 insulation Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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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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Abstract
The invention relates to the field of electric power, and aims to provide a switch type phase sequence switching combined junction box. A switched phase-sequence switching junction box, comprising: the terminal box comprises a terminal box body, a box cover, a terminal board and a phase sequence change-over switch, wherein the terminal board is arranged in the terminal box body and is provided with three voltage and current terminal blocks; the first voltage current terminal block and the third voltage current terminal block respectively comprise: the power connection assembly and the switching assembly; connect electric subassembly includes: the voltage power connection post, the middle current power connection post, the left current power connection post and the right current power connection post are connected; the switching component comprises: a voltage switching terminal, a left current switching terminal, a right current switching terminal; the middle current electric pole is electrically connected with the right current electric pole or the left current electric pole. The switch type phase sequence switching combined junction box does not influence the electricity consumption of users when adjusting the phase sequence, and has high phase change efficiency and good safety.
Description
Technical Field
The invention relates to the field of electric power, in particular to a switch type phase sequence switching combined junction box.
Background
The electric energy metering combined junction box is mainly suitable for a three-phase three-wire or three-phase four-wire electric energy metering loop which needs to be accessed through a current transformer. The electric energy meter is connected with the secondary circuit (the voltage secondary circuit and the current secondary circuit) in a combined mode through the installation of the combined junction box, the electric energy meter can be conveniently and safely checked when the electric energy meter is on site loaded, and the meter can be disassembled and assembled under the charged state, so that the open circuit of the current secondary circuit and the short circuit of the voltage secondary circuit can be prevented in the operation process, and meanwhile, the economic loss caused by the power failure of a user due to the fact that the load switch is pulled down can be avoided. The invention discloses an electric energy metering combined junction box disclosed by the invention of Chinese patent application No. CN201510591399.X, which comprises a junction box body and a wiring board arranged in the junction box body, wherein the wiring board is provided with U, V, W phase voltage and current wiring blocks; the U, V, W-phase current junction blocks are arranged on two sides of the voltage junction block. Traditional electric energy measurement combined junction box exists when the wrong of reverse phase sequence appears in the combined wiring, need have a power failure and exchange the wiring of two arbitrary looks of electric energy meter tail department and reach the adjustment and advance a table phase sequence, influence user's power consumption, the lower and relatively poor not enough of security of commutation wiring efficiency, consequently, do not influence user's power consumption when designing an adjustment phase sequence, the higher and better switching formula phase sequence of security of commutation efficiency switches combined junction box, become the problem of treating promptly.
Disclosure of Invention
The invention aims to overcome the defects that the current electric energy metering combined junction box needs to be powered off to interchange any two phase connections at the tail of an electric energy meter to adjust the phase sequence of the inlet meter when the reverse phase sequence error occurs in the combined connection, so that the electricity consumption of a user is influenced, the phase-change connection efficiency is lower and the safety is poorer, and provides a switching type phase-sequence switching combined junction box which does not influence the electricity consumption of the user when the phase sequence is adjusted, has higher phase-change efficiency and better safety.
The specific technical scheme of the invention is as follows:
a switched phase-sequence switching junction box, comprising: the terminal box comprises a terminal box body, a box cover and a terminal board, wherein the terminal box body is arranged in the terminal box body and is provided with three voltage and current terminal blocks; the first voltage current terminal block and the third voltage current terminal block respectively comprise: the power connection assembly and the switching assembly; connect electric subassembly includes: the voltage power connection post, the middle current power connection post, the left current power connection post and the right current power connection post are connected; the switching component comprises: a voltage switching terminal, a left current switching terminal, a right current switching terminal; the middle current electric pole is electrically connected with the right current electric pole or the left current electric pole; the switch type phase sequence switching combined junction box further comprises a phase sequence switching switch which is electrically connected with the first voltage current junction block and the third voltage current junction block respectively. The switch type phase sequence switching combined junction box is characterized in that an electric connection assembly of the switch type phase sequence switching combined junction box is electrically connected with a mutual inductor of a secondary circuit, a switching assembly is electrically connected with an electric energy meter, and a working circuit and a maintenance circuit can be switched by the electric connection of a middle current electric connection column and a right current electric connection column or a left current electric connection column; the switch type phase sequence switching combined junction box realizes voltage phase sequence switching by switching a voltage connecting post and a voltage switching terminal post of a first voltage current junction block and a voltage connecting post and a voltage switching terminal post of a third voltage current junction block through a phase sequence switch, and realizes current phase sequence switching by respectively switching a left current connecting post and a left current switching terminal post of the first voltage current junction block and a left current connecting post and a left current switching terminal post of the third voltage current junction block, and switching a right current connecting post and a right current switching terminal post of the first voltage current junction block and a right current connecting post and a right current switching terminal post of the third voltage current junction block; the power consumption of a user is not influenced when the phase sequence is adjusted, the phase change efficiency is high, and the safety is good.
The phase sequence change-over switch comprises: the phase sequence switching bottom plate is arranged in the junction box body and provided with an upper power connection bar, a middle power connection bar and a lower power connection bar, and the switching device is shifted; the upper power strip, the middle power strip and the lower power strip are respectively provided with six power connecting terminals which are sequentially arranged; the voltage connecting post of the first voltage and current connecting block is connected with the first connecting terminal of the middle connecting row through a lead; the voltage connecting post of the third voltage and current connecting block is connected with the second connecting terminal of the middle connecting row through a lead; the left current connecting post of the first voltage and current connecting block is connected with the third connecting terminal of the middle connecting row through a lead; the left current connecting post of the third voltage and current connecting block is connected with the fourth connecting terminal of the middle connecting row through a lead; the right current electric post of the first voltage and current wiring block is connected with the fifth electric terminal of the middle electric busbar through a lead; the right current electric connecting post of the third voltage and current wiring block is connected with the sixth electric connecting terminal of the middle electric connecting bar through a lead; the voltage switching terminal of the first voltage and current terminal block is connected with the first electric connection terminal of the upper electric connection bar through a lead; the voltage switching terminal of the third voltage and current terminal block is connected with the second electric terminal of the upper electric busbar through a lead; the left current switching wiring terminal of the first voltage and current wiring block is connected with the third electric connection terminal of the upper electric connection bar through a wire; the left current switching wiring terminal of the third voltage current wiring block is connected with the fourth electric connection terminal of the upper electric connection bar through a wire; the left current switching binding post of the first voltage and current binding post block is connected with the fifth electric terminal of the upper electric busbar through a lead; the left current switching wiring terminal of the third voltage and current wiring block is connected with the sixth electric connection terminal of the upper electric connection bar through a wire; the first electric connection terminal of the upper electric connection bar is connected with the second electric connection terminal of the lower electric connection bar through a lead, and the second electric connection terminal of the upper electric connection bar is connected with the first electric connection terminal of the lower electric connection bar through a lead; the third electric connection terminal of the upper electric connection bar is connected with the fourth electric connection terminal of the lower electric connection bar through a lead, and the fourth electric connection terminal of the upper electric connection bar is connected with the third electric connection terminal of the lower electric connection bar through a lead; the fifth electric connection terminal of the upper electric connection row is connected with the sixth electric connection terminal of the lower electric connection row through a lead, and the sixth electric connection terminal of the upper electric connection row is connected with the fifth electric connection terminal of the lower electric connection row through a lead. The phase sequence change-over switch is connected with the upper power connection bar in a one-to-one correspondence mode through the power connection terminals of the switching middle power connection bar, and the power connection terminals of the middle power connection bar are connected with the power connection terminals of the lower power connection bar in a one-to-one correspondence mode, so that the voltage phase sequence switching and the current phase sequence switching are convenient and reliable.
Preferably, the toggle switching device comprises: the length direction is a slide rail in the up-down direction, the inner end of the slide rail is provided with a counter bore and is connected with the inner end of the box cover in a sliding way through the slide rail, the slide sleeve is sleeved on the outer side of the slide block and is matched with the slide block, the slide sleeve is provided with six parallel connecting strips and is connected with the inner end of the slide sleeve, and the two ends of the slide sleeve respectively press the outer end of the insulation plate and a pressure spring on; a limiting ring groove is arranged around the outer side of the sliding block; a convex ring extending into the limit ring groove is arranged around the inner side of the sliding sleeve; the box cover is provided with a long through hole with the length direction in the vertical direction; the outer end of the sliding block is provided with a shifting block which penetrates through the long through hole and extends out of the long through hole; the connecting strips are respectively in one-to-one correspondence with the electric connection terminals of the middle electric connection row, the electric connection terminals of the upper electric connection row and the electric connection terminals of the lower electric connection row, and press the electric connection terminals of the middle electric connection row and the electric connection terminals of the upper electric connection row or press the electric connection terminals of the middle electric connection row and the electric connection terminals of the lower electric connection row. The toggle switching device is simple in structure and rapid in phase sequence switching.
Preferably, two ends of the connecting strip are respectively provided with a guide inclined piece. The guide inclined plate prevents the electric bar from being pressed and the electric terminal from interfering when the phase sequence is switched.
Preferably, the wires are embedded in the wiring board. The wires are embedded in the wiring board, so that the wiring is neat, stable and reliable.
Preferably, the middle current electric pole is electrically connected with the right current electric pole or the left current electric pole through the connecting sheet. The connection or the switching connection is convenient and fast.
Compared with the prior art, the invention has the beneficial effects that: the switch type phase sequence switching combined junction box realizes voltage phase sequence switching by switching a voltage connecting post and a voltage switching terminal post of a first voltage current junction block and a voltage connecting post and a voltage switching terminal post of a third voltage current junction block through a phase sequence switch, and realizes current phase sequence switching by respectively switching a left current connecting post and a left current switching terminal post of the first voltage current junction block and a left current connecting post and a left current switching terminal post of the third voltage current junction block, and switching a right current connecting post and a right current switching terminal post of the first voltage current junction block and a right current connecting post and a right current switching terminal post of the third voltage current junction block; the power consumption of a user is not influenced when the phase sequence is adjusted, the phase change efficiency is high, and the safety is good. The phase sequence change-over switch is connected with the upper power connection bar in a one-to-one correspondence mode through the power connection terminals of the switching middle power connection bar, and the power connection terminals of the middle power connection bar are connected with the power connection terminals of the lower power connection bar in a one-to-one correspondence mode, so that the voltage phase sequence switching and the current phase sequence switching are convenient and reliable. The toggle switching device is simple in structure and rapid in phase sequence switching. The guide inclined plate prevents the electric bar from being pressed and the electric terminal from interfering when the phase sequence is switched. The wires are embedded in the wiring board, so that the wiring is neat, stable and reliable.
Drawings
FIG. 1 is a schematic view of an initial state structure of the present invention;
fig. 2 is a view a-a of fig. 1.
In the figure: the connecting box comprises a connecting box body 1, a box cover 2, a voltage and current wiring block 3, a wiring board 4, a voltage electric connection post 5, a middle current electric connection post 6, a left current electric connection post 7, a right current electric connection post 8, a voltage switching post 9, a left current switching post 10, a right current switching post 11, a zero line wiring block 12, an upper electric connection bar 13, a middle electric connection bar 14, a lower electric connection bar 15, an electric connection terminal 16, a lead 17, a slide rail 18, a counter bore 19, a slide block 20, a slide sleeve 21, an electric connection bar 22, an insulating plate 23, a pressure spring 24, a limiting ring groove 25, a convex ring 26, a long through hole 27, a shifting block 28, a guide oblique sheet 29, a connecting sheet 30 and a phase sequence.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in the attached figures 1 and 2: a switched phase-sequence switching junction box, comprising: the wiring box comprises a wiring box body 1, a box cover 2, a wiring board 4 which is arranged in the wiring box body 1 and is provided with three voltage and current wiring blocks 3, and phase sequence change-over switches which are respectively and electrically connected with the first voltage and current wiring block 3 and the third voltage and current wiring block 3; the first voltage current terminal block 3 and the third voltage current terminal block 3 respectively comprise: the power connection assembly and the switching assembly; connect electric subassembly includes: a voltage power connection post 5, a middle current power connection post 6, a left current power connection post 7 and a right current power connection post 8; the switching component comprises: a voltage switching terminal 9, a left current switching terminal 10, a right current switching terminal 11; the middle current electric pole 6 is electrically connected with the right current electric pole 8 or the left current electric pole 7. The wiring board 4 is provided with a zero line wiring block 12; the voltage power connection post 5, the middle current power connection post 6, the left current power connection post 7, the right current power connection post 8 and the voltage switching post 9 are made of copper materials respectively, and the left current switching post 10 and the right current switching post 11 are made of copper materials respectively.
The phase sequence change-over switch comprises: the phase sequence switching bottom plate 31 is arranged in the junction box body 1 and is provided with an upper power connection bar 13, a middle power connection bar 14 and a lower power connection bar 15, and the switching device is shifted; the upper power connection bar 13, the middle power connection bar 14 and the lower power connection bar 15 are respectively provided with six power connection terminals 16 which are sequentially arranged; the electric terminal 16 is made of copper; the voltage connecting post 5 of the first voltage current terminal block 3 is connected with the first connecting terminal 16 of the middle connecting row 14 through a lead 17; the voltage connecting post 5 of the third voltage current terminal block 3 is connected with the second electric terminal 16 of the middle electric row 14 through a lead 17; the left current electric post 7 of the first voltage-current terminal block 3 is connected with a third electric terminal 16 of the middle electric row 14 through a lead 17; the left current electric post 7 of the third voltage-current terminal block 3 is connected with a fourth electric terminal 16 of the middle electric row 14 through a lead 17; the right current electric post 8 of the first voltage-current terminal block 3 is connected with a fifth electric terminal 16 of the middle electric row 14 through a lead 17; the right current electric post 8 of the third voltage-current terminal block 3 is connected with a sixth electric terminal 16 of the middle electric row 14 through a lead 17; the voltage switching terminal 9 of the first voltage-current terminal block 3 is connected with a first electric terminal 16 of the upper electric bar 13 through a lead 17; the voltage switching terminal 9 of the third voltage-current terminal block 3 is connected with the second electric terminal 16 of the upper electric bank 13 through a lead 17; the left current switching binding post 10 of the first voltage and current binding block 3 is connected with a third electric terminal 16 of the upper electric bar 13 through a lead 17; the left current switching binding post 10 of the third voltage current binding post 3 is connected with a fourth electric terminal 16 of the upper electric bar 13 through a lead 17; the right current switching terminal 11 of the first voltage current junction block 3 is connected with a fifth electric terminal 16 of the upper power strip 13 through a lead 17; the right current switching terminal 11 of the third voltage-current terminal block 3 is connected with a sixth electric terminal 16 of the upper power strip 13 through a lead 17; the first electric connecting terminal 16 of the upper electric connecting bar 13 is connected with the second electric connecting terminal 16 of the lower electric connecting bar 15 through a lead 17, and the second electric connecting terminal 16 of the upper electric connecting bar 13 is connected with the first electric connecting terminal 16 of the lower electric connecting bar 15 through a lead 17; the third electric connecting terminal 16 of the upper electric connecting bar 13 is connected with the fourth electric connecting terminal 16 of the lower electric connecting bar 15 through a lead 17, and the fourth electric connecting terminal 16 of the upper electric connecting bar 13 is connected with the third electric connecting terminal 16 of the lower electric connecting bar 15 through a lead 17; the fifth electrical connecting terminal 16 of the upper electrical bar 13 is connected with the sixth electrical connecting terminal 16 of the lower electrical bar 15 through a wire 17, and the sixth electrical connecting terminal 16 of the upper electrical bar 13 is connected with the fifth electrical connecting terminal 16 of the lower electrical bar 15 through a wire 17. The electric terminals 16 are made of copper materials.
The toggle switching device comprises: the length direction is a slide rail 18 in the up-down direction, the inner end of the slide rail 18 is provided with a counter bore 19 and is connected with the inner end of the box cover 2 in a sliding way through the slide rail 18, a slide sleeve 21 which is sleeved on the outer side of the slide block 20 and is in clearance fit with the slide block 20, an insulation plate 23 which is provided with six parallel connection strips 22 and is connected with the inner end of the slide sleeve 21 through screws, and two ends of the insulation plate 23 respectively press the outer end of the insulation plate and a pressure spring; a limiting ring groove 25 is arranged around the outer side of the sliding block 20; a convex ring 26 extending into the limit ring groove 25 is arranged around the inner side of the sliding sleeve 21; the box cover 2 is provided with a long through hole 27 with the length direction in the up-and-down direction; the long through hole 27 is rectangular in shape; the outer end of the sliding block 20 is provided with a shifting block 28 which passes through the long through hole 27 and extends out of the long through hole 27; the connecting strips 22 are respectively corresponding to the electric connecting terminals 16 of the middle electric connecting bar 14, the electric connecting terminals 16 of the upper electric connecting bar 13 and the electric connecting terminals 16 of the lower electric connecting bar 15 one by one, and the connecting strips 22 press the electric connecting terminals 16 of the middle electric connecting bar 14 and the electric connecting terminals 16 of the upper electric connecting bar 13 or the connecting strips 22 press the electric connecting terminals 16 of the middle electric connecting bar 14 and the electric connecting terminals 16 of the lower electric connecting bar 15.
Two ends of the connecting strip 22 are respectively provided with a guide inclined piece 29.
The wires 17 are embedded in the wiring board 4.
The middle current electric connecting column 6 is electrically connected with the right current electric connecting column 8 or the left current electric connecting column 7 through a connecting sheet 30.
When the switch type phase sequence switching combined junction box is used, the connection bar 22 presses the electric connection terminal 16 of the middle power connection bar 14 and the electric connection terminal 16 of the upper power connection bar 13 or the connection bar 22 presses the electric connection terminal 16 of the middle power connection bar 14 and the electric connection terminal 16 of the lower power connection bar 15 by shifting the shifting block 28, so that the phase sequence switching of voltage and current is realized.
The invention has the beneficial effects that: the switch type phase sequence switching combined junction box realizes voltage phase sequence switching by switching a voltage connecting post and a voltage switching terminal post of a first voltage current junction block and a voltage connecting post and a voltage switching terminal post of a third voltage current junction block through a phase sequence switch, and realizes current phase sequence switching by respectively switching a left current connecting post and a left current switching terminal post of the first voltage current junction block and a left current connecting post and a left current switching terminal post of the third voltage current junction block, and switching a right current connecting post and a right current switching terminal post of the first voltage current junction block and a right current connecting post and a right current switching terminal post of the third voltage current junction block; the power consumption of a user is not influenced when the phase sequence is adjusted, the phase change efficiency is high, and the safety is good. The phase sequence change-over switch is connected with the upper power connection bar in a one-to-one correspondence mode through the power connection terminals of the switching middle power connection bar, and the power connection terminals of the middle power connection bar are connected with the power connection terminals of the lower power connection bar in a one-to-one correspondence mode, so that the voltage phase sequence switching and the current phase sequence switching are convenient and reliable. The toggle switching device is simple in structure and rapid in phase sequence switching. The guide inclined plate prevents the electric bar from being pressed and the electric terminal from interfering when the phase sequence is switched. The wires are embedded in the wiring board, so that the wiring is neat, stable and reliable.
It will be obvious to those skilled in the art that the present invention may be varied in many ways, and that such variations are not to be regarded as a departure from the scope of the invention. All such modifications as would be obvious to one skilled in the art are intended to be included within the scope of this claim.
Claims (5)
1. A switched phase-sequence switching junction box, comprising: the terminal box comprises a terminal box body, a box cover and a terminal board, wherein the terminal box body is arranged in the terminal box body and is provided with three voltage and current terminal blocks; it is characterized in that the first voltage current junction block and the third voltage current junction block respectively comprise: the power connection assembly and the switching assembly; connect electric subassembly includes: the voltage power connection post, the middle current power connection post, the left current power connection post and the right current power connection post are connected; the switching component comprises: a voltage switching terminal, a left current switching terminal, a right current switching terminal; the middle current electric pole is electrically connected with the right current electric pole or the left current electric pole; the switch type phase sequence switching combined junction box also comprises a phase sequence switching switch which is electrically connected with the first voltage current junction block and the third voltage current junction block respectively; the wiring board is provided with a zero line wiring block; the phase sequence change-over switch includes: the phase sequence switching bottom plate is arranged in the junction box body and provided with an upper power connection bar, a middle power connection bar and a lower power connection bar, and the switching device is shifted; the upper power strip, the middle power strip and the lower power strip are respectively provided with six power connecting terminals which are sequentially arranged; the voltage connecting post of the first voltage and current connecting block is connected with the first connecting terminal of the middle connecting row through a lead; the voltage connecting post of the third voltage and current connecting block is connected with the second connecting terminal of the middle connecting row through a lead; the left current connecting post of the first voltage and current connecting block is connected with the third connecting terminal of the middle connecting row through a lead; the left current connecting post of the third voltage and current connecting block is connected with the fourth connecting terminal of the middle connecting row through a lead; the right current electric post of the first voltage and current wiring block is connected with the fifth electric terminal of the middle electric busbar through a lead; the right current electric connecting post of the third voltage and current wiring block is connected with the sixth electric connecting terminal of the middle electric connecting bar through a lead; the voltage switching terminal of the first voltage and current terminal block is connected with the first electric connection terminal of the upper electric connection bar through a lead; the voltage switching terminal of the third voltage and current terminal block is connected with the second electric terminal of the upper electric busbar through a lead; the left current switching wiring terminal of the first voltage and current wiring block is connected with the third electric connection terminal of the upper electric connection bar through a wire; the left current switching wiring terminal of the third voltage current wiring block is connected with the fourth electric connection terminal of the upper electric connection bar through a wire; the right current switching binding post of the first voltage and current binding post block is connected with the fifth electric terminal of the upper electric busbar through a lead; the right current switching wiring terminal of the third voltage and current wiring block is connected with the sixth electric connection terminal of the upper electric connection bar through a wire; the first electric connection terminal of the upper electric connection bar is connected with the second electric connection terminal of the lower electric connection bar through a lead, and the second electric connection terminal of the upper electric connection bar is connected with the first electric connection terminal of the lower electric connection bar through a lead; the third electric connection terminal of the upper electric connection bar is connected with the fourth electric connection terminal of the lower electric connection bar through a lead, and the fourth electric connection terminal of the upper electric connection bar is connected with the third electric connection terminal of the lower electric connection bar through a lead; the fifth electric connection terminal of the upper electric connection row is connected with the sixth electric connection terminal of the lower electric connection row through a lead, and the sixth electric connection terminal of the upper electric connection row is connected with the fifth electric connection terminal of the lower electric connection row through a lead.
2. The switchmode phase sequence switching combi junction box of claim 1 wherein said toggle switching means comprises: the length direction is a slide rail in the up-down direction, the slide rail is connected with the inner end of the box cover in a sliding mode through the slide rail, the inner end of the slide rail is provided with a counter bore, a slide sleeve which is sleeved on the outer side wall of the slide block and matched with the slide block, six insulation plates which are arranged in parallel and are connected with the inner end of the slide sleeve are arranged, and two ends of each insulation plate respectively press a pressure spring at the outer end of each insulation; a limiting ring groove is arranged around the outer side of the sliding block; a convex ring extending into the limit ring groove is arranged around the inner side of the sliding sleeve; the box cover is provided with a long through hole with the length direction in the vertical direction; the outer end of the sliding block is provided with a shifting block which penetrates through the long through hole and extends out of the long through hole; the connecting strips are respectively in one-to-one correspondence with the electric connection terminals of the middle electric connection row, the electric connection terminals of the upper electric connection row and the electric connection terminals of the lower electric connection row, and press the electric connection terminals of the middle electric connection row and the electric connection terminals of the upper electric connection row or press the electric connection terminals of the middle electric connection row and the electric connection terminals of the lower electric connection row.
3. The switch-mode phase-sequence switching junction box of claim 2, wherein said connecting strip has a guide ramp at each end.
4. A switched phase-sequence switching combi junction box according to claim 1, 2 or 3 wherein said conductors are embedded in a terminal block.
5. The switched phase-sequence switching junction box of claim 1, 2 or 3, wherein said medium current electrical connector is electrically connected to said right current electrical connector or said left current electrical connector via a connecting tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335906.2A CN107918038B (en) | 2017-05-12 | 2017-05-12 | Switch type phase sequence switching combined junction box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335906.2A CN107918038B (en) | 2017-05-12 | 2017-05-12 | Switch type phase sequence switching combined junction box |
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| CN107918038A CN107918038A (en) | 2018-04-17 |
| CN107918038B true CN107918038B (en) | 2020-04-07 |
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| CN201710335906.2A Active CN107918038B (en) | 2017-05-12 | 2017-05-12 | Switch type phase sequence switching combined junction box |
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| CN109557348B (en) * | 2018-11-28 | 2021-02-23 | 哈尔滨汇鑫仪器仪表有限责任公司 | Magnetic torque positive sequence and negative sequence self-conversion device for intelligent electric energy meter |
| CN110441565A (en) * | 2019-08-07 | 2019-11-12 | 山西磊源电器有限责任公司 | A kind of intelligent electric energy meter phase sequence falls cutting apparatus |
| CN112269055B (en) * | 2020-11-25 | 2024-03-19 | 程昱舒 | Intelligent junction box for electric energy metering |
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| CN105203801A (en) * | 2015-09-16 | 2015-12-30 | 国网天津市电力公司 | United junction box for electrical energy measuring |
| CN204945184U (en) * | 2015-09-24 | 2016-01-06 | 国网山东德州市陵城区供电公司 | Multifunctional combined experimental wiring box |
| CN207036914U (en) * | 2017-05-12 | 2018-02-23 | 国网浙江省电力公司湖州供电公司 | Switching regulator phase sequence switches combined connection box |
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| CN107918038A (en) | 2018-04-17 |
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