CN107134378B - Maintenance switch with power-off protection and secondary opening structure - Google Patents
Maintenance switch with power-off protection and secondary opening structure Download PDFInfo
- Publication number
- CN107134378B CN107134378B CN201710467674.6A CN201710467674A CN107134378B CN 107134378 B CN107134378 B CN 107134378B CN 201710467674 A CN201710467674 A CN 201710467674A CN 107134378 B CN107134378 B CN 107134378B
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- plug
- socket
- wrench
- interlocking
- main core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a maintenance switch with a power-off protection and secondary opening structure, which comprises a main lock catch, a wrench, a plug, a socket, an interlocking pin, an interlocking module, a main core piece and a main core piece slot, wherein the wrench is installed outside the plug, the wrench is provided with the main lock catch, the interlocking pin and the main core piece are installed in the plug, and the interlocking module and the main core piece slot are installed in the socket. According to the maintenance switch with the power-off protection and secondary opening structure, the secondary opening button is additionally arranged at the critical point of the disconnection of the interlocking module and the interlocking contact pin for instant protection of the interlocking disconnection, and the secondary opening button needs to be opened after the interlocking disconnection to perform the operation of separating the plug from the socket, so that the separation of the main core pieces of the plug and the socket is realized, the buffering time is ensured, the structure is simple, the realization is easy, and the maintenance switch has a good application prospect.
Description
Technical Field
The invention relates to the technical field of high-voltage connection, in particular to a maintenance switch with a power-off protection and secondary opening structure.
Background
Need install maintenance switch in new energy automobile high-voltage connection, at present for the mechanical structure that maintenance switch plug, socket are connected, including spanner (including hasp), secondary lock card, the electrical property principle between maintenance switch's plug and the socket is: the connection of the plug and the socket requires a high-voltage interlocking function; when the plug and the socket are separated, the interlocking is disconnected, and then the main chip for connection is powered off. The circular telegram or the disconnection of maintenance switch interlocking among the prior art, with main core piece circular telegram or disconnection, there is precedence, current mechanical structure's hasp only is guaranteeing the separation or the joint of plug, socket, at the interlocking circular telegram/restriction mechanism that does not increase buffer time in the twinkling of an eye of outage, make the interlocking, main core piece disconnection is gone on almost simultaneously, when the interlocking power failure is in the twinkling of an eye, electric current is not released completely in the maintenance switch inner circuit, at this moment, if main core piece breaks off immediately, there is the risk of producing electric arc, reduce maintenance switch life simultaneously, and there is the potential safety hazard.
Disclosure of Invention
The invention aims to solve the problems that the existing maintenance switch is not provided with a limiting mechanism for buffering time at the moment of interlocking power failure, so that interlocking and main core disconnection are almost simultaneously carried out, the risk of electric arc generated by electrified disconnection of the main core exists, and potential safety hazard exists. The maintenance switch with the power-off protection and secondary opening structure is additionally provided with a secondary opening button at the critical point of the disconnection of the interlocking module and the interlocking contact pin for the instant protection of the interlocking disconnection: after the interlocking is disconnected, the main core piece is in a power-off critical state, the secondary opening button needs to be opened, in the process of opening the button, the main core piece is powered off, the time for buffering the power-off of the main core piece is given, and the separation operation of the plug and the socket can be carried out, so that the separation of the main core pieces of the plug and the socket is realized, and the main core piece is not electrified during the separation, so that the safety is ensured, the structure is simple, the realization is easy, and the application prospect is good.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a maintenance switch with power-off protection and secondary open structure which characterized in that: comprises a main lock catch, a wrench, a plug, a socket, an interlocking pin, an interlocking module, a main core piece and a main core piece slot, wherein the wrench is arranged outside the plug, the wrench is provided with the main lock catch, the interlocking pin and the main core piece are arranged in the plug, the interlocking module and the main core piece slot are arranged in the socket,
the plug is internally provided with a guide groove, the socket is internally provided with a guide pin corresponding to the guide groove, after the guide groove of the plug is aligned with the guide pin of the socket, the wrench is pulled downwards, the plug and the socket are plugged, the interlocking pin and the interlocking module are plugged, the main core piece and the main core piece plug groove are plugged, when the wrench is parallel to the outer wall of the plug, the plug and the socket are plugged in place, the lower snap fastener of the main lock fastener on the wrench is locked in place, the outer wall of the plug is provided with a secondary opening button, and at the moment, the secondary opening button is sunk into the convex block of the socket to complete the plugging action of the plug and the socket;
the unlocking position is mentioned on the main lock catch on the wrench, the wrench is pulled upwards, when the wrench rotates to form a certain included angle with the outer wall of the plug, the interlocking module is disconnected from the interlocking contact pin for insertion, the secondary opening button is located at the disconnection position of the plug and the socket, the end part of the secondary opening button on the plug is pressed down to separate from the convex block of the socket, so that the plug is separated from the limit of the convex block, the buffering time is provided, the wrench is pulled upwards continuously, the plug is pulled outwards and kept horizontal, the plug is separated from the socket, the main core piece and the main core piece slot are disconnected, and the disconnection action of the plug and the socket is completed.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: the lengths of the main core piece and the main core piece slot contact section are larger than the lengths of the interlocking pin and the interlocking module contact section.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: and a mobile preformed hole is formed in the middle of the secondary opening button.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: two ends of the wrench are respectively fixed on two sides of the outside of the plug through movable rotating shafts.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: the main lock catch on the wrench is lifted to the unlocking position, the wrench is pulled upwards, and when the wrench rotates to form an included angle of 45 degrees with the outer wall of the plug, the interlocking module is disconnected from the interlocking contact pin for insertion.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: the interlocking pins are electrically connected with the main chip.
The maintenance switch with the power-off protection and secondary opening structure is characterized in that: the protruding block is triangular, the inclined plane is positioned on the front side, and the secondary opening button is convenient to move when the plug and the socket are inserted, and the preformed hole is sunk into the protruding block.
The invention has the beneficial effects that: the maintenance switch with the power-off protection and secondary opening structure is additionally provided with a secondary opening button at the critical point of the disconnection of the interlocking module and the interlocking contact pin for the instant protection of the interlocking disconnection: after the interlocking is disconnected, the main core piece is in a power-off critical state, the secondary opening button needs to be opened, in the process of opening the button, the main core piece is powered off, the time for buffering the power-off of the main core piece is given, and the separation operation of the plug and the socket can be carried out, so that the separation of the main core pieces of the plug and the socket is realized, and the main core piece is not electrified during the separation, so that the safety is ensured, the structure is simple, the realization is easy, and the application prospect is good.
Drawings
FIG. 1 is a schematic diagram of a service switch of the present invention having a power-off protection and secondary open configuration;
FIG. 2 is a schematic structural view of the plug and socket of the present invention after they are inserted in place;
FIG. 3 is a schematic view of the plug and receptacle of the present invention in a position adjacent to the open position;
fig. 4 is a schematic structural diagram of the invention after completing the disconnection of the plug and the socket.
The designations in the drawings have the following meanings:
1: a main lock catch; 2: a wrench; 3: a plug; 301: opening the button for the second time; 302: moving the prepared hole; 4: a socket; 401: a raised block; 5: interlocking pins; 6: an interlock module; 7: a main core member; 8: a main chip slot.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the maintenance switch with the power-off protection and secondary opening structure of the invention comprises a main lock catch 1, a wrench 2, a plug 3, a socket 4, an interlocking pin 5, an interlocking module 6, a main core 7 and a main core slot 8, wherein the wrench 2 is installed outside the plug 3, two end parts of the wrench 2 are respectively fixed on two sides of the outside of the plug 3 through a movable rotating shaft, the wrench 2 is provided with the main lock catch, the interlocking pin 5 and the main core 7 are installed in the plug 3, the interlocking module 6 and the main core slot 8 are installed in the socket 4,
the plug 3 is internally provided with a guide groove, the socket 4 is internally provided with a guide pin corresponding to the guide groove, after the guide groove of the plug 3 is aligned with the guide pin of the socket 4, the wrench 2 is pulled downwards, the plug 3 and the socket 4 are inserted, the interlocking pin 5 is inserted with the interlocking module 6, the main core 7 is inserted with the main core slot 8, when the wrench 2 is parallel to the outer wall of the plug 3, the plug 3 and the socket 4 are inserted in place, the lower snap fastener of the main lock catch 1 on the wrench 2 is locked in place to realize primary lock catch, the outer wall of the plug 3 is provided with a secondary opening button 301, at the moment, the secondary opening button 301 is sunk into the raised block 401 of the socket 4 to realize the primary lock catch, and the inserting and closing action of the plug 3 and the socket 4 is finished, as shown in fig. 2;
lifting the main lock catch 1 on the wrench 2 to an unlocking position to realize primary unlocking, pulling the wrench 2 upwards, rotating the wrench 2 to a certain included angle with the outer wall of the plug 3, disconnecting and inserting the interlocking module 6 and the interlocking pin 5, wherein the middle part of the secondary opening button 301 is provided with a mobile preformed hole 302, the convex block 401 is triangular, and the inclined plane is positioned at the front side, so that when the secondary opening button 301 is inserted into the plug 3 and the socket 4, the mobile preformed hole 302 is sunk into the convex block 401, the secondary opening button 301 is positioned at the close disconnection position of the plug 3 and the socket 4, at the moment, the convex block 401 supports against the lower edge of the mobile preformed hole 302, as shown in fig. 3, the end part of the secondary opening button 301 on the plug is pressed down to separate from the convex block 401 of the socket 4, so that the plug 3 is separated from the limit of the convex block 401 at the position to realize secondary unlocking, thereby providing buffering time, the wrench 2 is continuously pulled upwards to pull the plug 3 outwards and keep the plug 3 in a horizontal state, the plug 3 is separated from the socket 4, the main core 7 and the main core slot 8 are disconnected, and the disconnection action of the plug 3 and the socket 4 is completed, as shown in fig. 4.
The length of the contact section of the main core piece 7 and the main core piece slot 8 is larger than that of the contact section of the interlocking pin 5 and the interlocking module 6, and here, the interlocking pin 5 and the interlocking module 6 can be disconnected slightly earlier than the main core piece 7 and the main core piece slot 8.
The unlocking position is mentioned on the main lock catch on the wrench 2, the wrench 2 is pulled upwards, and when the wrench 2 rotates to form an included angle of 45 degrees with the outer wall of the plug 3, the interlocking module 6 is disconnected from the interlocking pin 5 for plugging.
The interlocking pins 5 are electrically connected to the main core 7.
According to the maintenance switch with the power-off protection and secondary opening structure, when the plug and the socket are plugged, the plug and the socket are locked for two times, the maintenance switch is safe and reliable, when the plug and the socket are disconnected, the interlocking module and the interlocking terminal are disconnected, and then the main chips of the plug and the socket can be separated after once unlocking operation (secondary unlocking) is needed, so that electric arcs can be effectively prevented from being generated, a secondary opening button is added to realize a secondary unlocking function, the safety problem at the moment of power-off of the plug and the socket is ensured, the service life of a product is prolonged, and the safety of power-off is ensured.
In summary, in the maintenance switch with the power-off protection and secondary opening structure of the present invention, the secondary opening button is added at the critical point of the disconnection between the interlock module and the interlock pin for the instant protection of the interlock disconnection: after the interlocking is disconnected, the main core piece is in a power-off critical state, the secondary opening button needs to be opened, in the process of opening the button, the main core piece is powered off, the time for buffering the power-off of the main core piece is given, and the separation operation of the plug and the socket can be carried out, so that the separation of the main core pieces of the plug and the socket is realized, and the main core piece is not electrified during the separation, so that the safety is ensured, the structure is simple, the realization is easy, and the application prospect is good.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a maintenance switch with power-off protection and secondary open structure which characterized in that: comprises a main lock catch (1), a wrench (2), a plug (3), a socket (4), an interlocking pin (5), an interlocking module (6), a main core piece (7) and a main core piece slot (8),
the wrench (2) is installed outside the plug (3), the wrench (2) is provided with a main lock catch (1), the interlocking pin (5) and the main core piece (7) are installed in the plug (3), and the interlocking module (6) and the main core piece slot (8) are installed in the socket (4);
the plug (3) is internally provided with a guide groove, the socket (4) is internally provided with a guide pin corresponding to the guide groove in position, the guide groove of the plug (3) is aligned with the guide pin of the socket (4), then the wrench (2) is pulled downwards, the plug (3) and the socket (4) are inserted and combined, the interlocking pin (5) and the interlocking module (6) are inserted and combined, the main core piece (7) and the main core piece slot (8) are inserted and combined, when the wrench (2) is parallel to the outer wall of the plug (3), the plug (3) and the socket (4) are inserted and combined in place, the lower snap fastener of the main lock fastener on the wrench (2) is locked in place, the outer wall of the plug (3) is provided with a secondary opening button (301), and at the moment, the secondary opening button (301) is sunk into the convex block (401) of the socket (4), so as to complete the inserting and combining action of the plug (3);
the main lock catch (1) on the wrench (2) is lifted to the unlocking position, the wrench (2) is pulled upwards, when the wrench (2) rotates to form a certain included angle with the outer wall of the plug (3), the interlocking module (6) is disconnected with the interlocking pin (5), the secondary opening button (301) is positioned at the position of the plug (3) and the socket (4) close to the disconnection position, the end part of the secondary opening button (301) on the plug is pressed down to separate from the convex block (401) of the socket (4), and the plug (3) is separated from the limit of the convex block (401) at the position, thereby providing buffer time, continuously pulling the wrench (2) upwards, realizing that the plug (3) is pulled outwards and the plug (3) is kept in a horizontal state, separating the plug (3) from the socket (4), and disconnecting the main core piece (7) and the main core piece slot (8) to finish the disconnecting action of the plug (3) and the socket (4);
and a mobile preformed hole (302) is formed in the middle of the secondary opening button (301).
2. The maintenance switch with the power-off protection and secondary opening structure as claimed in claim 1, wherein: the lengths of the contact sections of the main core piece (7) and the main core piece inserting groove (8) are larger than the lengths of the contact sections of the interlocking pin (5) and the interlocking module (6).
3. The maintenance switch with the power-off protection and secondary opening structure as claimed in claim 1, wherein: two end parts of the wrench (2) are respectively fixed on two sides of the outside of the plug (3) through movable rotating shafts.
4. The maintenance switch with the power-off protection and secondary opening structure as claimed in claim 1, wherein: the unlocking position is mentioned on the main lock catch on the wrench (2), the wrench (2) is pulled upwards, and when the wrench (2) rotates to form an included angle of 45 degrees with the outer wall of the plug (3), the interlocking module (6) and the interlocking pin (5) are disconnected and plugged.
5. The maintenance switch with the power-off protection and secondary opening structure as claimed in claim 1, wherein: the interlocking pins (5) are electrically connected with the main core piece (7).
6. The maintenance switch with the power-off protection and secondary opening structure as claimed in claim 1, wherein: the protruding block (401) is triangular, the inclined surface is located on the front side, and therefore when the plug (3) and the socket (4) are plugged, the secondary opening button (301) can be conveniently opened, and the movable reserved hole (302) is sunk into the protruding block (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467674.6A CN107134378B (en) | 2017-06-20 | 2017-06-20 | Maintenance switch with power-off protection and secondary opening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467674.6A CN107134378B (en) | 2017-06-20 | 2017-06-20 | Maintenance switch with power-off protection and secondary opening structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107134378A CN107134378A (en) | 2017-09-05 |
| CN107134378B true CN107134378B (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467674.6A Active CN107134378B (en) | 2017-06-20 | 2017-06-20 | Maintenance switch with power-off protection and secondary opening structure |
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| Country | Link |
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| CN (1) | CN107134378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511255B (en) * | 2018-05-23 | 2024-02-27 | 西安赛诺克新能源科技有限公司 | Small-sized high-voltage isolating switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000123683A (en) * | 1998-10-16 | 2000-04-28 | Hokuriku Electric Ind Co Ltd | Electric part storing operating shaft |
| CN203415738U (en) * | 2013-09-05 | 2014-01-29 | 南京康尼科技实业有限公司 | High-voltage interlocking connector |
| CN204155896U (en) * | 2014-11-11 | 2015-02-11 | 江苏由甲申田新能源科技有限公司 | A kind of Manual maintenance switch |
| CN206076569U (en) * | 2016-10-18 | 2017-04-05 | 乐清市八达光电科技股份有限公司 | A kind of high-voltage interlocking adapter containing secondary locking structure |
| CN206864321U (en) * | 2017-06-20 | 2018-01-09 | 南京康尼新能源汽车零部件有限公司 | A kind of service switch with power-off protection and secondary Unclosing structure |
-
2017
- 2017-06-20 CN CN201710467674.6A patent/CN107134378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000123683A (en) * | 1998-10-16 | 2000-04-28 | Hokuriku Electric Ind Co Ltd | Electric part storing operating shaft |
| CN203415738U (en) * | 2013-09-05 | 2014-01-29 | 南京康尼科技实业有限公司 | High-voltage interlocking connector |
| CN204155896U (en) * | 2014-11-11 | 2015-02-11 | 江苏由甲申田新能源科技有限公司 | A kind of Manual maintenance switch |
| CN206076569U (en) * | 2016-10-18 | 2017-04-05 | 乐清市八达光电科技股份有限公司 | A kind of high-voltage interlocking adapter containing secondary locking structure |
| CN206864321U (en) * | 2017-06-20 | 2018-01-09 | 南京康尼新能源汽车零部件有限公司 | A kind of service switch with power-off protection and secondary Unclosing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107134378A (en) | 2017-09-05 |
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