CN210090658U - Power-on switching device of external mutual inductor - Google Patents
Power-on switching device of external mutual inductor Download PDFInfo
- Publication number
- CN210090658U CN210090658U CN201920384620.8U CN201920384620U CN210090658U CN 210090658 U CN210090658 U CN 210090658U CN 201920384620 U CN201920384620 U CN 201920384620U CN 210090658 U CN210090658 U CN 210090658U
- Authority
- CN
- China
- Prior art keywords
- box body
- phase
- lower box
- voltage input
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an electricity auto-change over device on external mutual-inductor, the power distribution box comprises a box body, wherein the box includes box and lower box, it is articulated with lower box that the last box passes through the hinge, it has last box and holds the chamber to go up the box, the box has lower box and holds the chamber down. The lower box body accommodating cavity is internally provided with a lower box body supporting plate and a control plate, one side of the upper box body provided with a hinge is provided with 4 lower box body through holes, and the 4 lower box body through holes are respectively used for penetrating through a first voltage input lead, a second voltage input lead, a first current input lead and a second current input lead. The utility model discloses an electricity auto-change over device on external mutual-inductor, through optimizing output terminal, voltage input option switch, current input option switch's overall arrangement, convenient to use person safety, convenient, swiftly accomplish the selection switching between three-phase voltage and the three-phase current.
Description
Technical Field
The utility model belongs to the technical field of well low voltage power supply protection corollary equipment, concretely relates to power-on switching device on external mutual-inductor.
Background
A utility model patent with publication number CN207396706U and subject name of 10kV and above current transformer speed limit detection device, the technical scheme comprises that the system comprises a standard current transformer and a plurality of detected high-voltage current transformers, the multiple high-voltage current transformers to be detected are placed in order, the secondary side terminals of the multiple high-voltage current transformers to be detected face outwards, the primary side ends of the multiple high-voltage current transformers to be detected which are placed in order are sequentially connected in series end to end by using a copper bar, when the copper bar is pressed, the P2 end of the former detected high-voltage current transformer is connected with the P1 end of the latter detected high-voltage current transformer, a bolt is inserted into the primary side terminal connecting hole to fasten the copper bar, the primary side outgoing line of the standard current transformer is clamped and pressed on the primary side bolt of the detected high-voltage current transformer, and the secondary side terminal of the standard current transformer is connected with the secondary side terminal of the detected high-voltage current transformer through a detachable extension line.
However, the utility model discloses a current transformer detection device, be applicable to the high voltage field, be unsuitable for well low voltage detection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's situation, provide an electricity auto-change over device on external mutual-inductor.
The utility model discloses a following technical scheme, power-on auto-change over device on external mutual-inductor includes the box, wherein:
the box body comprises an upper box body and a lower box body, the upper box body is hinged with the lower box body through a hinge, the upper box body is provided with an upper box body accommodating cavity, and the lower box body is provided with a lower box body accommodating cavity;
the lower box body accommodating cavity is internally provided with a lower box body supporting plate and a control plate, one side of the upper box body provided with a hinge is provided with 4 lower box body through holes, the 4 lower box body through holes are respectively used for penetrating through a first voltage input lead, a second voltage input lead, a first current input lead and a second current input lead, and the first voltage input lead, the second voltage input lead, the first current input lead and the second current input lead are mutually and independently connected to the input end of the control plate;
the upper surface of the upper box body is provided with 4 upper box body through holes, the 4 upper box body through holes are respectively used for penetrating through an A-phase output lead, a B-phase output lead, a C-phase output lead and an N-line output lead, the N-line output lead is connected to a second voltage input lead through a control board, and the A-phase output lead, the B-phase output lead, the C-phase output lead and the N-line output lead are mutually and independently connected to the output end of the control board;
the upper surface of the upper box body is further provided with an A phase voltage input selection switch, a B phase voltage input selection switch, a C phase voltage input selection switch, an A phase current input selection switch, a B phase current input selection switch and a C phase current input selection switch, the control panel is provided with a 1 loop, a 2 loop and a 1.2 loop, the A phase to C phase voltage input selection switches are respectively located in an A phase branch of the first voltage input lead, a B phase branch of the first voltage input lead and a C phase branch of the first voltage input lead, and the A phase to C phase current input selection switches are respectively located in the 1 loop, the 2 loop and the 1.2 loop of the control panel.
According to the above technical means, as a further preferable technical means of the above technical means, the upper surface of the upper case is further provided with a 2-circuit first output terminal and a 2-circuit second output terminal which are simultaneously connected to a 2-circuit of the control board, and the upper surface of the upper case is further provided with a 1-circuit first output terminal and a 1-circuit second output terminal which are simultaneously connected to a 1-circuit of the control board.
According to the above technical solution, as a further preferable technical solution of the above technical solution, one side of the lower box support plate is provided with a lower box support plate groove, the power-on switching device of the external transformer further comprises an upper box support member, the upper box support member penetrates through the lower box support plate groove, and two ends of the upper box support member are respectively fixedly connected with the upper box and the lower box.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the upper box supporting member includes a first section, a second section and a rotating shaft, one end of the first section is fixedly connected with the upper box, the other end of the first section is connected with the rotating shaft, one end of the second section is fixedly connected with the lower box, and the other end of the second section is connected with the rotating shaft.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the power-on switching device of the external transformer further includes a lock catch member, the lock catch member includes a first lock body located in the upper case and a second lock body located in the lower case, and the first lock body is locked with the second lock body.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the number of the locking pieces is 2.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, the upper surface of the lower box supporting plate is provided with a control panel embedded groove, a first transformer embedded groove and a second transformer embedded groove.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the number of the first transformer embedded grooves is 3, and the number of the second transformer embedded grooves is 4.
The utility model discloses an electricity auto-change over device on external mutual-inductor, its beneficial effect lies in, through optimizing output terminal, voltage input option switch, current input option switch's overall arrangement, convenient to use person safety, convenient, swiftly accomplish the selection switching between three-phase voltage and the three-phase current.
Drawings
Fig. 1 is a schematic structural diagram of an angle in an opened state according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another angle in the open state according to the above embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an angle of the above embodiment of the present invention in the closed state.
Fig. 4 is a schematic structural diagram of another angle in the closed state according to the above embodiment of the present invention.
Fig. 5 is a schematic diagram of a part of the electrical wiring of the control board of the present invention.
Fig. 6 is a schematic diagram of a part of the electrical wiring of the control board of the present invention.
Fig. 7 is a schematic diagram of a part of the electrical wiring of the control board of the present invention.
The reference numerals include: 10-a box body; 11-upper box body; 12-a lower box body; 13-a hinge; 14 an upper box body accommodating cavity; 15-lower box support plate; 16-lower box through hole; 17-upper case through hole; a 21-A phase voltage input selection switch; a 22-B phase voltage input selection switch; a 23-C phase voltage input selection switch; 24-A to the current input selection switch; the 25-B phase current is input to a selector switch; a 26-C phase current input selector switch; 31-2 loop first output terminal; 32-2 loop second output terminal; 33-1 loop first output terminal; 34-1 loop second output terminal; 40-an upper case support; 41-first segment body; 42-a rotating shaft; 43-second segment; 44-lower box support plate recesses; 50-a locking fastener; 51-a first lock body; 52-a second lock body; 61-control panel embedded groove; 62-a first transformer embedded groove; 63-a second transformer embedding groove.
Detailed Description
The utility model discloses an electricity auto-change over device on external mutual-inductor combines preferred embodiment below, and is right the utility model discloses a detailed embodiment does further description.
Referring to fig. 1 to 7 of the drawings, fig. 1 shows a state when a box of the external transformer power-on switching device is opened, fig. 2 shows a state when the box of the external transformer power-on switching device is opened, fig. 3 shows a state when the box of the external transformer power-on switching device is closed, fig. 4 shows a state when the box of the external transformer power-on switching device is closed, and fig. 5 to 7 respectively show specific wiring structures of a switching circuit of the external transformer power-on switching device.
Preferably, the power-on switching device of the external transformer comprises a box body 10, wherein:
the box body 10 comprises an upper box body 11 and a lower box body 12, the upper box body 11 is hinged with the lower box body 12 through a hinge 13, the upper box body 11 is provided with an upper box body accommodating cavity 14, and the lower box body 12 is provided with a lower box body accommodating cavity (not shown in the figure);
a lower box supporting plate 15 and a control plate (not shown in the figure) are arranged in the lower box accommodating cavity,one side of the upper case 12, which is provided with the hinge 13, is provided with 4 lower case through holes 16, and the 4 lower case through holes 16 are respectively used for penetrating through a first voltage input lead (L, not shown), a second voltage input lead (N, not shown), and a first current input lead (I)Is justNot shown in the figure) and a second current input lead (I)Negative poleNot shown in the figure), the first voltage input lead, the second voltage input lead, the first current input lead and the second current input lead are mutually independently connected to the input end of the control board (the other ends of the first voltage input lead, the second voltage input lead, the first current input lead and the second current input lead are respectively connected to an external mutual inductor);
the upper surface of the upper box body 11 is provided with 4 upper box body through holes 17, the 4 upper box body through holes 17 are respectively used for penetrating through an A-phase output lead (not shown in the figure), a B-phase output lead (not shown in the figure), a C-phase output lead (not shown in the figure) and an N-line output lead (not shown in the figure), the N-line output lead is connected to a second voltage input lead through a control board, and the A-phase output lead, the B-phase output lead, the C-phase output lead and the N-line output lead are mutually and independently connected to the output end of the control board;
the upper surface of the upper box 11 is further provided with an a-phase voltage input selection switch 21, a B-phase voltage input selection switch 22, a C-phase voltage input selection switch 23, an a-phase current input selection switch 24, a B-phase current input selection switch 25 and a C-phase current input selection switch 26, the control board is provided with a 1-loop circuit, a 2-loop circuit and a 1.2-loop circuit, the a-phase to C-phase voltage input selection switches 21,22 and 23 are respectively located in the a-phase branch of the first voltage input wire, the B-phase branch of the first voltage input wire and the C-phase branch of the first voltage input wire, the a-phase to C-phase current input selection switches 24,25 and 26 are respectively located in the 1-loop circuit, the 2-loop circuit and the 1.2-loop circuit of the control board (it is worth mentioning that the specific connection mode between the a-phase voltage input selection switch 21 and the first voltage input wire is not shown in the figure, the remaining B-phase voltage input selector switch 22, and so on).
Further, the upper surface of the upper case 11 is further provided with a 2-circuit first output terminal 31 and a 2-circuit second output terminal 32 which are simultaneously connected to a 2-circuit of the control board, and the upper surface of the upper case 11 is further provided with a 1-circuit first output terminal 33 and a 1-circuit second output terminal 34 which are simultaneously connected to a 1-circuit of the control board.
Further, one side of the lower box supporting plate 15 is provided with a lower box supporting plate groove 44, the power-on switching device of the external transformer further comprises an upper box supporting member 40, the upper box supporting member 40 penetrates through the lower box supporting plate groove 44, and two ends of the upper box supporting member 40 are respectively fixedly connected with the upper box 11 and the lower box 12.
Further, the upper box supporting member 40 includes a first section 41, a second section 43 and a rotating shaft 42, one end of the first section 41 is fixedly connected to the upper box 11, the other end of the first section 41 is connected to the rotating shaft 42, one end of the second section 43 is fixedly connected to the lower box 12, and the other end of the second section 43 is connected to the rotating shaft 42, so that the first section 41 and the second section 44 rotate coaxially and relatively around the rotating shaft 42, and the rotating shaft 42 is provided with a rotation damper, thereby supporting the upper box 11 to open relative to the lower box 12 and maintain a preset opening degree.
Further, the power-on switching device of the external transformer further comprises a locking member 50, wherein the locking member 50 comprises a first lock body 51 located in the upper box 11 and a second lock body 52 located in the lower box 12, and the first lock body 51 is locked with the second lock body 52, so as to drive the upper box 11 to keep a stable closing state relative to the lower box 12.
Further, the number of the locking pieces 50 is preferably 2.
Further, the upper surface of lower box backup pad 15 has control panel embedded groove 61, first mutual-inductor embedded groove 62 and second mutual-inductor embedded groove 63, control panel embedded groove 61 is used for the spacing save control panel of ground under the non-working condition firmly, prevents that the control panel from being cut and rubbed and produce the potential safety hazard in the transportation, first mutual-inductor embedded groove 62 is used for the spacing first kind of mutual-inductor of save firmly under the non-working condition, prevents that first kind of mutual-inductor from being cut and rubbed and produce the potential safety hazard in the transportation, second mutual-inductor embedded groove 63 is used for the spacing mutual-inductor of save second kind firmly under the non-working condition, prevents that second kind of mutual-inductor from being cut and rubbed and produce the potential safety hazard in the transportation.
Further, the number of the first transformer embedding grooves 62 is preferably 3, and the number of the second transformer embedding grooves 63 is preferably 4.
It is worth mentioning that the utility model discloses a technical characteristics such as control panel, first voltage input wire, A looks voltage input option switch that the patent application relates to should be regarded as prior art, and the concrete structure of these technical characteristics, theory of operation and the control mode that can involve, spatial arrangement mode adopt in this field conventional selection can, should not be regarded as the utility model discloses a point of invention is located, the utility model discloses a do not do further specifically expand the detailing.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a switching device on external mutual-inductor which characterized in that, includes the box, wherein:
the box body comprises an upper box body and a lower box body, the upper box body is hinged with the lower box body through a hinge, the upper box body is provided with an upper box body accommodating cavity, and the lower box body is provided with a lower box body accommodating cavity;
the lower box body accommodating cavity is internally provided with a lower box body supporting plate and a control plate, one side of the upper box body provided with a hinge is provided with 4 lower box body through holes, the 4 lower box body through holes are respectively used for penetrating through a first voltage input lead, a second voltage input lead, a first current input lead and a second current input lead, and the first voltage input lead, the second voltage input lead, the first current input lead and the second current input lead are mutually and independently connected to the input end of the control plate;
the upper surface of the upper box body is provided with 4 upper box body through holes, the 4 upper box body through holes are respectively used for penetrating through an A-phase output lead, a B-phase output lead, a C-phase output lead and an N-line output lead, the N-line output lead is connected to a second voltage input lead through a control board, and the A-phase output lead, the B-phase output lead, the C-phase output lead and the N-line output lead are mutually and independently connected to the output end of the control board;
the upper surface of the upper box body is further provided with an A phase voltage input selection switch, a B phase voltage input selection switch, a C phase voltage input selection switch, an A phase current input selection switch, a B phase current input selection switch and a C phase current input selection switch, the control panel is provided with a 1 loop, a 2 loop and a 1.2 loop, the A phase to C phase voltage input selection switches are respectively located in an A phase branch of the first voltage input lead, a B phase branch of the first voltage input lead and a C phase branch of the first voltage input lead, and the A phase to C phase current input selection switches are respectively located in the 1 loop, the 2 loop and the 1.2 loop of the control panel.
2. The power-on switching device of an external transformer according to claim 1, wherein the upper surface of the upper box further has a 2-loop first output terminal and a 2-loop second output terminal which are connected to the 2-loop of the control board at the same time, and the upper surface of the upper box further has a 1-loop first output terminal and a 1-loop second output terminal which are connected to the 1-loop of the control board at the same time.
3. The power-on switching device for the external transformer according to claim 1, wherein a groove of the lower box supporting plate is formed on one side of the lower box supporting plate, the power-on switching device for the external transformer further comprises an upper box supporting member, the upper box supporting member penetrates through the groove of the lower box supporting plate, and two ends of the upper box supporting member are respectively fixedly connected with the upper box and the lower box.
4. The power-on switching device of an external transformer according to claim 3, wherein the upper box supporting member comprises a first section, a second section and a rotating shaft, one end of the first section is fixedly connected with the upper box, the other end of the first section is connected with the rotating shaft, one end of the second section is fixedly connected with the lower box, and the other end of the second section is connected with the rotating shaft.
5. The external mutual inductor power-on switching device as claimed in claim 1, further comprising a locking member, wherein the locking member comprises a first locking body located in the upper box and a second locking body located in the lower box, and the first locking body is locked with the second locking body.
6. The power-on switching device for the external transformer according to claim 5, wherein the number of the locking pieces is 2.
7. The power-on switching device of an external transformer according to claim 1, wherein the upper surface of the lower box supporting plate has a control board embedded groove, a first transformer embedded groove and a second transformer embedded groove.
8. The power-on switching device of an external transformer according to claim 7, wherein the number of the first transformer embedded grooves is 3, and the number of the second transformer embedded grooves is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920384620.8U CN210090658U (en) | 2019-03-25 | 2019-03-25 | Power-on switching device of external mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920384620.8U CN210090658U (en) | 2019-03-25 | 2019-03-25 | Power-on switching device of external mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210090658U true CN210090658U (en) | 2020-02-18 |
Family
ID=69472460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920384620.8U Active CN210090658U (en) | 2019-03-25 | 2019-03-25 | Power-on switching device of external mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210090658U (en) |
-
2019
- 2019-03-25 CN CN201920384620.8U patent/CN210090658U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210838359U (en) | Non-stop device for changing electric energy meter | |
| WO2015059195A1 (en) | Inverter system and pv system | |
| CN109672032B (en) | Grounding wire with anti-misoperation locking function | |
| CN205543704U (en) | Safe distribution cubical switchboard | |
| CN210090658U (en) | Power-on switching device of external mutual inductor | |
| CN105846195B (en) | Wiring device with grounding connector for electrical distribution box | |
| CN206894341U (en) | Four two key power transfer devices of lock | |
| CN207663967U (en) | It is a kind of to realize interlocking fuse assembly | |
| CN201556849U (en) | Mechanical electric control device of high-voltage frequency conversion bypass cabinet | |
| CN204098638U (en) | A kind of remote control security lock being applied to intelligent JP cabinet | |
| JP3521678B2 (en) | High-voltage power receiving equipment | |
| CN216216610U (en) | Reversible operation fine crusher control device | |
| CN212811599U (en) | Manual bypass intelligent control cabinet | |
| JP3122553B2 (en) | Power line switching equipment for three-phase distribution lines | |
| CN206225847U (en) | The universal attachment means of power supply vehicle of meet an emergency and low pressure aerial condutor | |
| CN108288554A (en) | It is a kind of to realize interlocking fuse assembly | |
| CN220272904U (en) | Flexible power supply system and switch connector thereof | |
| CN2927351Y (en) | Open-loop grounding device for repairing power apparatus | |
| CN216981145U (en) | Grounding device and grounding protection system | |
| WO1988005974A1 (en) | Protective device for electrically driven apparatus | |
| CN211605667U (en) | Secondary locking circuit of grounding vehicle | |
| CN211878096U (en) | Intelligent control device of combined switch cabinet | |
| CN212849572U (en) | Subway contact net isolator overhauls appurtenance | |
| CN218039051U (en) | Moulded case circuit breaker convenient to installation | |
| CN210142775U (en) | Intelligent power supply manager |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 Datong Road, Yuxin Town, Yunan village, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Xinghao Technology Co., Ltd Address before: 314000 Datong Road, Yuxin Town, Yunan village, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: Jiaxing Xinghao Instrument Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |