CN209785868U

CN209785868U - terminal assembly and manual maintenance switch using same

Info

Publication number: CN209785868U
Application number: CN201920721551.5U
Authority: CN
Inventors: 李伟; 王海波; 金梦醒; 李统刚; 聂辉
Original assignee: ZHEJIANG YONGGUI ELECTRIC EQUIPMENT CO Ltd
Current assignee: ZHEJIANG YONGGUI ELECTRIC EQUIPMENT CO Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2019-12-13
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a terminal subassembly and use manual maintenance switch of this terminal subassembly. The existing male terminal needs secondary machining, and the production efficiency is low. The female terminal assembly of the utility model 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 of the utility model is provided with two insertion ports, and the end of the insertion port close to the upper cover is provided with an integrated anti-touch finger rib; the two inserting ports of the base are internally and fixedly embedded with male terminals. The utility model discloses to prevent touching to indicate that structure and base casing set up as an organic whole, prevent touching when public, female terminal is to inserting that to indicate the structure and slide at two faces that the contact piece cavity breaks off for public terminal can directly pass through panel beating stamping forming, has avoided the secondary machine to add.

Description

Terminal assembly and manual maintenance switch using same

Technical Field

The utility model belongs to the technical field of the connector, especially, relate to a terminal subassembly and use manual maintenance switch of this terminal subassembly with prevent touching and indicate 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

An object of the utility model is to prior art not enough, provide a terminal subassembly and use manual maintenance switch of this terminal subassembly, the structure of its female terminal has been avoided setting up insulating cap anti-drop structure on public terminal, can also reach IPXXB when simplifying public terminal structure and prevent touching the finger requirement, has simplified manufacturing process, has reduced manual maintenance switch manufacturing cost simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the terminal assembly of the utility model comprises a female terminal assembly and a male terminal; the female terminal assembly comprises a connecting piece, a fixing piece and a contact piece; 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; 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 piece are provided with a plurality of elastic pieces, and the arrangement modes of the elastic pieces on the two inner side walls of the contact piece are the same.

The male terminal is L-shaped.

The shorter arm both sides of connection piece all are through rivet fixed stationary blade.

The arrangement mode of the elastic pieces on the inner side wall of the contact piece is array arrangement or even distribution along the circumferential direction.

the manual maintenance switch using the terminal component comprises an upper cover, a fuse and a base; the fuse is arranged between the protective cover and the upper cover; the protective cover is detachably fixed with the upper cover and tightly presses the fuse; 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; the female terminal component, the fuse and the upper cover are detachably fixed; a plurality of first mounting holes are formed in the mounting surface of the upper cover; 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; a male terminal is fixedly embedded in each of the two inserting ports of the base; the plug arm of the male terminal embedded in the plug socket is aligned with the anti-touch finger rib.

The protective cover is connected with the upper cover through a buckle.

The protective cover is provided with air holes.

The specific fixing mode of the female terminal component, the fuse and the upper cover is as follows: the bolt passes through the through hole of the connecting piece on the female terminal component and the connecting notch of the fuse and is connected with the nut fixed in the upper cover.

The plurality of mounting holes are arranged in an array mode or are uniformly distributed along the circumferential direction.

The male terminal is fixed with the base through in-mold injection or fixedly connected with a threaded hole formed in the base through a third mounting hole formed in the die.

The utility model discloses beneficial effect who has:

The utility model discloses under the prerequisite that does not reduce and produce the performance, improve female terminal structure, cavity in the female terminal is the disconnection rectangle that two parallel surfaces constitute, this kind of structure can be with preventing touching to indicate the structure and set up as an organic wholely with base housing, public, female terminal is to inserting the time, prevent touching to indicate that two faces of structure at the disconnection of female terminal cavity slide for public terminal can be directly through panel beating stamping forming, avoided the secondary machine to add, public terminal structure has both been simplified, can also reach and prevent touching to indicate the requirement.

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 structural view of the female terminal assembly of the present invention;

Fig. 4 is a schematic structural view of the male terminal of the present invention;

fig. 5 is a schematic view of a contact piece of the present invention;

FIG. 6 is an exploded 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 position between the finger rib and the male terminal in the manual service switch of the present invention.

Detailed Description

the present invention will be further explained 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. Terminal subassembly, including female terminal subassembly and male terminal, its characterized in that: the female terminal assembly comprises a connecting piece, a fixing piece and a contact piece; 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; 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 piece are provided with a plurality of elastic pieces, and the arrangement modes of the elastic pieces on the two inner side walls of the contact piece are the same.

2. The terminal assembly of claim 1, wherein: the male terminal is L-shaped.

3. The terminal assembly of claim 1, wherein: the shorter arm both sides of connection piece all are through rivet fixed stationary blade.

4. The terminal assembly of claim 1, wherein: the arrangement mode of the elastic pieces on the inner side wall of the contact piece is array arrangement or even distribution along the circumferential direction.

5. A manual service switch using the terminal assembly according to any one of claims 1 to 4, comprising an upper cover, a fuse, and a base; the method is characterized in that: the fuse is arranged between the protective cover and the upper cover; the protective cover is detachably fixed with the upper cover and tightly presses the fuse; 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; the female terminal component, the fuse and the upper cover are detachably fixed; a plurality of first mounting holes are formed in the mounting surface of the upper cover; 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; a male terminal is fixedly embedded in each of the two inserting ports of the base; the plug arm of the male terminal embedded in the plug socket is aligned with the anti-touch finger rib.

6. The manual service switch of claim 5, wherein: the protective cover is connected with the upper cover through a buckle.

7. The manual service switch of claim 5, wherein: the protective cover is provided with air holes.

8. The manual service switch of claim 5, wherein: the specific fixing mode of the female terminal component, the fuse and the upper cover is as follows: the bolt passes through the through hole of the connecting piece on the female terminal component and the connecting notch of the fuse and is connected with the nut fixed in the upper cover.

9. The manual service switch of claim 5, wherein: the plurality of mounting holes are arranged in an array mode or are uniformly distributed along the circumferential direction.

10. The manual service switch of claim 5, wherein: the male terminal is fixed with the base through in-mold injection or fixedly connected with a threaded hole formed in the base through a third mounting hole formed in the die.