CN110223896B - Manual maintenance switch - Google Patents
Manual maintenance switch Download PDFInfo
- Publication number
- CN110223896B CN110223896B CN201910418625.2A CN201910418625A CN110223896B CN 110223896 B CN110223896 B CN 110223896B CN 201910418625 A CN201910418625 A CN 201910418625A CN 110223896 B CN110223896 B CN 110223896B
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- CN
- China
- Prior art keywords
- base
- upper cover
- sheet
- fuse
- female terminal
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- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/203—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a manual maintenance switch. The existing male terminal needs secondary machining, and the production efficiency is low. The female terminal assembly of the invention comprises a connecting sheet, a fixing sheet and a contact sheet; two fixing sheets are fixed on the connecting sheet; the contact piece is integrally U-shaped, two reverse buckles which are integrally formed and symmetrically arranged are arranged on the two outer side walls, and the two reverse buckles are respectively embedded into the through windows of the corresponding side fixing pieces; and a plurality of elastic sheets are arranged on the two inner side walls of the contact piece. The base of the manual maintenance switch is provided with two insertion ports, and the end of each insertion port, which is close to the upper cover, is provided with an integrally formed finger touch prevention rib; the two inserting ports of the base are internally and fixedly embedded with male terminals. The anti-touch finger structure and the base shell are arranged into a whole, and the anti-touch finger structure slides on two disconnected surfaces of the contact piece cavity when the male terminal and the female terminal are oppositely inserted, so that the male terminal can be directly subjected to sheet metal punch forming, and secondary machining is avoided.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a manual maintenance switch with a finger-touch prevention function.
Background
In new energy automobile, manual maintenance switch uses very generally, and it can in time cut off the circuit when the circuit short circuit, guarantees that the battery does not receive the damage. Meanwhile, when the battery needs to be maintained, the fuse can be taken down, the circuit is disconnected, and safe maintenance is achieved. However, along with new forms of energy electric automobile's continuous development, on-vehicle energy memory's load capacity is bigger and bigger, and voltage platform is also higher and higher, and manual maintenance switch need avoid operating personnel to touch electrified metal in order to ensure safety when opening manual maintenance switch with the finger, takes place in order to prevent the electric shock phenomenon, is equipped with on electrified metal's the public terminal and prevents touching the finger cap usually, prevents touching the finger cap moreover and is mostly small-size part, and assembly maneuverability is poor. Even if injection molding is adopted, the terminal must be provided with a structure for preventing the anti-touch finger cap from falling off, and only the structure of the terminal is complicated, so that the production efficiency is influenced.
Disclosure of Invention
The invention aims to provide a manual maintenance switch aiming at the defects of the prior art, the structure of the female terminal avoids the arrangement of an insulation cap anti-drop structure on the male terminal, the male terminal structure is simplified, the requirement of IPXXB finger touch prevention can be met, the manufacturing process is simplified, and the production cost of the manual maintenance switch is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a manual maintenance switch, which comprises a terminal component, an upper cover, a fuse and a base; the terminal assembly comprises a female terminal assembly and a male terminal; the male terminal is L-shaped; the female terminal assembly comprises a connecting sheet, a rivet, a fixing sheet and a contact sheet; the connecting sheet is L-shaped, the longer arm is provided with a through hole, and both sides of the shorter arm are fixed with fixing sheets through rivets; the fixing piece is provided with a through window; the through windows of the two fixing pieces are aligned; the contact piece is integrally U-shaped, two reverse buckles which are integrally formed and symmetrically arranged are arranged on the two outer side walls, and the two reverse buckles are respectively embedded into the through windows of the corresponding side fixing pieces; the two inner side walls of the contact pieces are respectively provided with a plurality of elastic pieces, and the elastic pieces on the two inner side walls of the contact pieces are arranged in the same way, namely in an array arrangement or uniformly distributed along the circumferential direction; the processing method of the contact piece comprises the following specific steps: firstly, two reverse buckles are punched towards the outer side on a long strip type contact piece substrate, then each elastic piece is punched towards the inner side, and finally the elastic pieces are bent inwards for forming.
The fuse is arranged between the protective cover and the upper cover; the protective cover is fixedly connected with the upper cover through a buckle, and the protective cover compresses the fuse; the protective cover is provided with air holes; the two ends of the fuse are provided with connecting notches, and the two ends of the fuse are respectively provided with a female terminal assembly; female terminal subassembly, fuse and upper cover fixed, concrete fixed mode does: the bolt penetrates through the through hole of the connecting sheet on the female terminal component and the connecting notch of the fuse and is connected with the nut fixed in the upper cover; a plurality of first mounting holes are formed in the mounting surface of the upper cover and are arranged in an array mode or uniformly distributed along the circumferential direction; a sealing ring is also arranged on the mounting surface of the upper cover; a plurality of second mounting holes are formed in the mounting surface of the base, and the arrangement mode of the second mounting holes is the same as that of the first mounting holes; a sealing gasket is also arranged on the mounting surface of the base; the base is provided with two insertion ports, and the end of the insertion port close to the upper cover is provided with an integrally formed finger touch prevention rib; hollow parts are arranged between the two sides of the anti-touch finger rib and the side wall of the interface; the male terminals are embedded into the two inserting ports of the base and are fixed with the base through in-mold injection or fixedly connected with threaded holes formed in the base through mounting holes III formed in the base through screws; the plug arm of the male terminal embedded in the plug socket is aligned with the anti-touch finger rib.
The invention has the following beneficial effects:
according to the invention, on the premise of not reducing the product performance, the structure of the female terminal is improved, the cavity in the female terminal is a broken rectangle formed by two parallel surfaces, the structure can integrate the anti-touch finger structure with the base shell, and when the male terminal and the female terminal are oppositely inserted, the anti-touch finger structure slides on the two broken surfaces of the cavity of the female terminal, so that the male terminal can be directly subjected to sheet metal punch forming, secondary machining is avoided, the structure of the male terminal is simplified, and the requirement of anti-touch finger can be met.
Drawings
FIG. 1 is a schematic view of a prior art female terminal base structure;
FIG. 2 is a schematic view of a prior art male terminal insert;
fig. 3 is a schematic view of a female terminal assembly of the present invention;
FIG. 4 is a schematic view of a male terminal of the present invention;
FIG. 5 is a schematic view of a contact of the present invention;
FIG. 6 is an exploded schematic view of the manual service switch of the present invention;
FIG. 7 is an assembled cross-sectional view of the manual service switch of the present invention;
fig. 8 is a partial schematic view of the relative positions of the contact preventing finger and the male terminal in the manual service switch of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
Fig. 1 is a schematic view of a female terminal substrate in the prior art, fig. 2 is a schematic view of a male terminal insert sheet matched with the female terminal substrate, and a cavity 10-1 surrounded by the female terminal substrate 10 can be inserted by the male terminal insert sheet 11 to be conducted with each other to form an electrical connection. In order to prevent the cavity 10-1 from deforming in repeated plugging, the cavity 10-1 is set to be a closed rectangle, so that only the male terminal insert 11 is allowed to pass through the cavity; and the anti-touch finger covering part 11-1 of the male terminal insertion piece 11 is arranged at the top end of the male terminal insertion piece 11 and sleeved with an anti-touch finger cap, and when the male terminal insertion piece 11 is separated from the rectangular cavity 10-1 of the female terminal, the anti-touch finger cap can prevent fingers of an operator from touching the charged metal of the male terminal insertion piece, so that the electric shock condition is avoided, and the anti-touch finger effect is achieved. Because male terminal and female terminal are sliding fit, the boundary size of preventing touching after the finger cap is installed to male terminal inserted sheet 11 can not be greater than male terminal inserted sheet 11 boundary size, otherwise the electrically conductive part of male terminal inserted sheet can't contact with female terminal, so prevent touching the boundary size that indicates covering portion 11-1 and need wholly be less than male terminal inserted sheet 11 boundary size, lead to male terminal inserted sheet 11 can't pass through panel beating one-time stamping forming, need process secondary machine and add, production efficiency is low, manufacturing cost is high.
As shown in fig. 3, 4 and 5, the terminal assembly of the present invention includes a female terminal assembly 3 and a male terminal 9; the male terminal 9 is L-shaped; the female terminal component 3 comprises a connecting sheet 3-1, a rivet 3-2, a fixing sheet 3-3 and a contact sheet 3-4; the connecting sheet 3-1 is L-shaped, the longer arm is provided with a through hole 3-1-1, and the two sides of the shorter arm are both fixed with fixing sheets 3-3; the fixing mode of the fixing piece 3-3 and the connecting piece 3-1 is that the fixing piece is connected through a rivet 3-2; the fixing piece 3-3 is provided with a through window 3-3-1 for installing the contact piece 3-4; the through windows 3-3-1 of the two fixing pieces 3-3 are aligned; the contact piece 3-4 is integrally U-shaped, two symmetrically arranged reverse buckles 3-4-1 which are integrally formed are arranged on the two outer side walls, and two penetrating windows 3-3-1 can be embedded to realize the connection between the contact piece 3-4 and the two fixing pieces 3-3; a plurality of elastic sheets 3-4-2 are arranged on the two inner side walls of the contact sheet 3-4, and the elastic sheets 3-4-2 on the two inner side walls of the contact sheet 3-4 are arranged in the same way, wherein the arrangement way can be array arrangement or circumferentially uniform distribution; each elastic sheet 3-4-2 is an independent elastic point, so that the contact area between the male terminal 9 and the female terminal assembly 3 is increased (in practical application, the elastic contact between the male terminal 9 and the female terminal assembly 3 is effective), the contact resistance between the male terminal 9 and the female terminal assembly 3 is reduced, and the temperature rise value of the male terminal and the female terminal during current transmission is effectively controlled. The processing method of the contact piece 3-4 is as follows: firstly, two reverse buckles 3-4-1 are punched towards the outer side of a strip-shaped contact piece substrate, then each elastic piece 3-4-2 is punched towards the inner side, and finally the strip-shaped contact piece substrate is bent inwards for forming.
As shown in fig. 6, 7 and 8, the manual service switch using the terminal assembly of the present invention includes an upper cover 1 and a base 8; the fuse 2 is arranged between the protective cover 5 and the upper cover 1, the protective cover 5 is connected with the upper cover 1 through a buckle, and the protective cover 5 compresses the fuse 2; the protective cover 5 is provided with air holes; the two ends of the fuse 2 are provided with connecting notches, and the two ends of the fuse 2 are respectively provided with a female terminal component; female terminal subassembly, fuse 2 and upper cover 1 are fixed, and concrete fixed mode does: the bolt 4 passes through the through hole 3-1-1 of the connecting sheet 3-1 on the female terminal component and the connecting notch of the fuse 2 and is connected with a nut fixed in the upper cover 1; a plurality of mounting holes I1-1 are formed in the mounting surface of the upper cover 1 and are arranged in an array mode or uniformly distributed along the circumferential direction; a sealing ring 6 is also arranged on the mounting surface of the upper cover 1; a plurality of mounting holes II 8-1 are formed in the mounting surface of the base 8, and the arrangement mode of the mounting holes II is the same as that of the mounting holes I1-1; a sealing gasket 7 is also arranged on the mounting surface of the base 8; the base 8 is provided with two insertion ports, and the end of the insertion port close to the upper cover 1 is provided with an integrally formed finger touch prevention rib 8-3; hollow parts 8-2 are arranged between the two sides of the anti-touch finger ribs 8-3 and the side walls of the insertion ports, and the fixing pieces 3-3 can be inserted into the hollow parts. The two inserting ports of the base 8 are embedded with male terminals 9, and the male terminals 9 are fixed with the base 8 through in-mold injection or fixedly connected with threaded holes formed in the base 8 through mounting holes III formed in the female mold; the plug-in arm 9-1 of the male terminal 9 embedded in the plug-in port is aligned with the finger-touch prevention rib 8-3.
The insertion process of the manual maintenance switch is as follows: two insertion ports of the base 8 are aligned with two female terminal assemblies 3 one by one, two fixing pieces 3-3 of the female terminal assemblies 3 are inserted into the insertion ports through two sides of the anti-touch finger ribs 8-3 respectively, each elastic piece 3-4-2 on each contact piece 3-4 between the two fixing pieces 3-3 is in full contact with an insertion arm 9-1 of the male terminal 9 to realize electric connection, so that the mounting surface of the upper cover 1 is in contact with the mounting surface of the base 8, each mounting hole I1-1 of the upper cover 1 is aligned with each mounting hole II 8-1 of the base 8 one by one, and then each set of aligned mounting hole I1-1 and each set of aligned mounting hole II 8-1 are fixedly connected through a bolt 4 and a nut.
The separation process of the manual maintenance switch is as follows: the bolt 4 and the nut on each group of the aligned mounting hole I1-1 and mounting hole II 8-1 are removed, and then the upper cover 1 and the female terminal component 3 are pulled out together to separate the female terminal component 3 from the male terminal 9; after the female terminal component 3 is separated from the male terminal 9, the anti-touch finger ribs 8-3 can isolate fingers of an operator from the male terminal 9 of the electrified component, so that electric shock caused by misoperation of the operator in the overhauling process is prevented.
Claims (1)
1. The manual maintenance switch comprises a terminal component, an upper cover, a fuse and a base; the terminal assembly comprises a female terminal assembly and a male terminal; the method is characterized in that: the male terminal is L-shaped; the female terminal assembly comprises a connecting sheet, a rivet, a fixing sheet and a contact sheet; the connecting sheet is L-shaped, the longer arm is provided with a through hole, and both sides of the shorter arm are fixed with fixing sheets through rivets; the fixing piece is provided with a through window; the through windows of the two fixing pieces are aligned; the contact piece is integrally U-shaped, two reverse buckles which are integrally formed and symmetrically arranged are arranged on the two outer side walls, and the two reverse buckles are respectively embedded into the through windows of the corresponding side fixing pieces; the two inner side walls of the contact pieces are respectively provided with a plurality of elastic pieces, and the elastic pieces on the two inner side walls of the contact pieces are arranged in the same way, namely in an array arrangement or uniformly distributed along the circumferential direction; the processing method of the contact piece comprises the following specific steps: firstly, punching two reverse buckles towards the outer side on a long strip type contact sheet substrate, then punching each elastic sheet towards the inner side, and finally bending inwards for forming;
the fuse is arranged between the protective cover and the upper cover; the protective cover is fixedly connected with the upper cover through a buckle, and the protective cover compresses the fuse; the protective cover is provided with air holes; the two ends of the fuse are provided with connecting notches, and the two ends of the fuse are respectively provided with a female terminal assembly; female terminal subassembly, fuse and upper cover fixed, concrete fixed mode does: the bolt penetrates through the through hole of the connecting sheet on the female terminal component and the connecting notch of the fuse and is connected with the nut fixed in the upper cover; a plurality of first mounting holes are formed in the mounting surface of the upper cover and are arranged in an array mode or uniformly distributed along the circumferential direction; a sealing ring is also arranged on the mounting surface of the upper cover; a plurality of second mounting holes are formed in the mounting surface of the base, and the arrangement mode of the second mounting holes is the same as that of the first mounting holes; a sealing gasket is also arranged on the mounting surface of the base; the base is provided with two insertion ports, and the end of the insertion port close to the upper cover is provided with an integrally formed finger touch prevention rib; hollow parts are arranged between the two sides of the anti-touch finger rib and the side wall of the interface; the male terminals are embedded into the two inserting ports of the base and are fixed with the base through in-mold injection or fixedly connected with threaded holes formed in the base through mounting holes III formed in the base through screws; the plug arm of the male terminal embedded in the plug socket is aligned with the anti-touch finger rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418625.2A CN110223896B (en) | 2019-05-20 | 2019-05-20 | Manual maintenance switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418625.2A CN110223896B (en) | 2019-05-20 | 2019-05-20 | Manual maintenance switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110223896A CN110223896A (en) | 2019-09-10 |
| CN110223896B true CN110223896B (en) | 2020-04-07 |
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ID=67821402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910418625.2A Active CN110223896B (en) | 2019-05-20 | 2019-05-20 | Manual maintenance switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110223896B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201681743U (en) * | 2010-03-30 | 2010-12-22 | 比亚迪股份有限公司 | Emergency maintenance switch |
| JP5522217B2 (en) * | 2012-08-21 | 2014-06-18 | 第一精工株式会社 | Electrical connector |
| CN104934243A (en) * | 2015-06-03 | 2015-09-23 | 北京理工华创电动车技术有限公司 | Hand-operated maintenance switch |
| CN106299808B (en) * | 2016-09-26 | 2018-10-12 | 欧品电子(昆山)有限公司 | Copper bar connector and terminal assemblies |
| JP6820462B2 (en) * | 2017-04-14 | 2021-01-27 | エス・オー・シー株式会社 | High voltage fuse with service plug function |
| CN206877866U (en) * | 2017-06-22 | 2018-01-12 | 宁德时代新能源科技股份有限公司 | Manual maintenance switch |
| CN107732544B (en) * | 2017-11-13 | 2024-04-12 | 顺科智连技术股份有限公司 | High-voltage maintenance switch connector |
| CN108155514B (en) * | 2017-12-13 | 2024-08-06 | 四川瑞可达连接系统有限公司 | Manual maintenance switch |
| CN108270103B (en) * | 2018-03-21 | 2024-10-15 | 苏州正北连接技术有限公司 | Heavy current terminal |
| CN208240938U (en) * | 2018-06-11 | 2018-12-14 | 深圳巴斯巴科技发展有限公司 | A kind of mini high current terminal structure |
| CN108565195B (en) * | 2018-06-13 | 2024-06-28 | 西安赛诺克新能源科技有限公司 | Low profile maintenance switch for vehicle |
| CN208507617U (en) * | 2018-07-24 | 2019-02-15 | 宁德时代新能源科技股份有限公司 | Manual maintenance switch |
-
2019
- 2019-05-20 CN CN201910418625.2A patent/CN110223896B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110223896A (en) | 2019-09-10 |
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