CN202772284U

CN202772284U - Power line terminal

Info

Publication number: CN202772284U
Application number: CN 201220382196
Authority: CN
Inventors: 余一平
Original assignee: NINGBO DONGXING ELECTRONIC CO Ltd
Current assignee: NINGBO DONGXING ELECTRONIC CO Ltd
Priority date: 2012-08-03
Filing date: 2012-08-03
Publication date: 2013-03-06
Anticipated expiration: 2022-08-03

Abstract

The utility model relates to a power line terminal, comprising a conductive housing (2) which is connected on a circuit board (1) and is used for insertion of a wire, an elastic sheet (3) mounted on the conductive housing (2), and a screw (4) for driving the elastic sheet to tightly press the wire on the bottom of an inner wall of the conductive housing (2). The power line terminal is characterized in that the rear part of the bottom surface of the conductive housing (2) is provided with a limit groove (5) with a downward opening in the left-right direction; under the state where the conductive housing (2) is connected on the circuit board (1), the front wall (51) of the limit groove (5) is used to be inserted in a clamp groove (11) that is provided on the circuit board (1) in advance, and meanwhile the rear wall (52) of the limit groove (5) is used to be inserted in a limit hole (12) that is provided in the circuit board (1) in advance. When the conductive housing of the terminal is mounted on the circuit board, the lower part of the conductive housing can be located below the circuit board, thereby effectively reducing the overall thickness of the circuit board in connection with the terminal, guaranteeing the reliability of the connection of the terminal and the circuit board, improving the product quality and effectively avoiding the problems of damage to the circuit board and the terminal which may be caused due to the application of a torsion force.

Description

A kind of power-line terminal

Technical field

The utility model belongs to the input and output interconnection technique field of power supply, relates in particular to a kind of power-line terminal.

Background technology

Present power-line terminal (also being binding post) on the market generally all is assembling metal crimp line part in the plastic casing of an insulation, be that 200980133181.2 Chinese invention patent " electric connecting terminals " relates to a kind of electric connecting terminals such as application number, it has fastening spring, metalwork and housing, this housing holds fastening spring and metalwork, and this housing has at least one conductor and introduces opening, be provided with the executive component in the housing of being arranged at that is used to open or close binding post, wherein, executive component has handle, by handle executive component is switched between open mode and closure state.

The binding post of an above-mentioned patent in actual applications existing shortcoming is: the binding post internal structure is comparatively complicated, the height dimension of whole binding post is higher, owing to be subjected to the restriction of this height dimension, so that binding post can't reduce with overall height dimension after wiring board is connected, thus, adopt the volume of this electric appliances equipment of power supply finished product of this binding post and wiring board also often larger, can't realize small and exquisite flexibly overall dimension.

In addition, mostly power-line terminal of the prior art (also being binding post) is to be inserted into corresponding position, hole on the wiring board by several tiny pins with inserting mode, and then by welding manner that binding post is fixing in the circuit board, because power-line terminal is positioned at the top of wiring board fully, therefore the wiring board whole height is high, adopt the integral thickness of the LED driving power of this binding post can not do thin, in addition, this mode that is fixedly connected with is when applying the screw of torsion turn binding post, the housing of binding post might and then reverse, severe one also might cause the pin breakage of binding post, even causes the pin block tin on the wiring board to burst apart.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of more convenient reliable power-line terminal that connects in the circuit board for above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of power-line terminal, include the conductive shell that connection can supply wire to plug in the circuit board, be installed in the shell fragment on this conductive shell and can drive screw on the inwall bottom that described shell fragment is pressed on wire described conductive shell, it is characterized in that: the rear portion of described conductive shell bottom surface have opening down and about the stopper slot that runs through, under conductive shell connection state in the circuit board, the antetheca of described stopper slot is used for being plugged in the draw-in groove that defaults on the wiring board, and the rear wall of stopper slot then is used for being plugged in the spacing hole that defaults on the wiring board simultaneously.

The left and right sides lateral wall of above-mentioned conductive shell has respectively the outward extending face of shelving, and under conductive shell connection state in the circuit board, the described face of shelving is for the upper surface that is shelved on wiring board.Binding post is when being connected with wiring board, the face of shelving can increase binding post and wiring board contact area, and binding post and wiring board are carried out more stable axial limiting, if only rely on contacting of stopper slot bottom surface and wiring board, its contact area is less, easily causes binding post and wiring board relative positioning not firm.

It is flat rectangular-shaped that above-mentioned conductive shell is, and adopts the conductive shell of flat rectangular structure, more is conducive to reduce the height of binding post.

In order to make things convenient for shell fragment to be connected with the installation of conductive shell, as preferably, above-mentioned shell fragment includes the fixed part that is fixed on described conductive shell upper end surface and is arranged at the interior elasticity line ball tongue piece of this conductive shell, described conductive shell offers the through hole that the elasticity line ball tongue piece for described shell fragment wears along fore-and-aft direction, offer perforation on the fixed part of described shell fragment, the top of described conductive shell offer can be corresponding with described perforation screwed hole, described screw passes described perforation and is threaded with described screwed hole.When the screw backspin, the elasticity line ball tongue piece of binding post shell fragment is down pushed down wire conductor, and when screw was loose toward last time, the elasticity line ball tongue piece of binding post shell fragment unclamped wire conductor.

In order to improve the connection reliability between shell fragment and the conductive shell, prevent the slip of shell fragment fixed part, as further preferred, one-body molded and the structure that takes the shape of the letter U of the fixed part of above-mentioned shell fragment and elasticity line ball tongue piece, described fixed part forms downwards and can offset with the left and right sides lateral wall of described conductive shell and spacing gulde edge along left and right sides side.

For further improving the connection reliability between shell fragment and the conductive shell, above-mentioned fixed part forms downwards and can offset with the front lateral wall of described conductive shell and spacing snap close limit along front side edge.

Compared with prior art, the utility model has the advantage of: the conductive shell physical efficiency in this binding post is plugged in respectively in the draw-in groove and spacing hole on defaulting in wiring board by its bottom antetheca of stopper slot and rear wall, the bottom of conductive shell is sunken to the wiring board below like this, can effectively reduce the height of the wiring board integral body that is connected with this binding post, the LED driving power integral thickness that uses this wiring board can be done so thinly, be convenient to the miniaturization of finished product; In addition, this binding post also can be realized being connected with the reliable of wiring board, by draw-in groove and spacing hole to the antetheca of stopper slot and rear wall circumferentially and successively spacing, guaranteed the reliability that binding post is connected with wiring board, improve product quality, can effectively avoid damaging because applying torsion simultaneously the problem of wiring board and binding post.

Description of drawings

Fig. 1 is the perspective view one of the utility model embodiment;

Fig. 2 is the perspective view two of the utility model embodiment;

Fig. 3 is the three-dimensional cutaway view of the utility model embodiment;

Fig. 4 is the perspective view of conductive shell among the utility model embodiment;

Fig. 5 is the perspective view of shell fragment among the utility model embodiment;

Fig. 6 is that the utility model embodiment is installed to the perspective view one on the wiring board;

Fig. 7 is that the utility model embodiment is installed to the perspective view two on the wiring board.

Embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1～5, be a preferred embodiment of the present utility model.

A kind of power-line terminal includes the conductive shell 2 that is connected on the wiring board 1, is installed in the shell fragment 3 on this conductive shell 2 and can drives screw 4 on the inwall bottom that described shell fragment 3 is pressed on wire conductive shell 2.

Wherein, it is 60% copper product that conductive shell 2 adopts the copper content, and it is square flat rectangular-shaped that this conductive shell 2 is cross section,

The rear portion of conductive shell 2 bottom surfaces have opening down and about the stopper slot 5 that runs through, under conductive shell 2 is connected to state on the wiring board 1, the antetheca 51 of stopper slot 5 is used for being plugged in the draw-in groove 11 that defaults on the wiring board 1, and 52 of the rear walls of stopper slot 5 are used for being plugged in the spacing hole 12 that defaults on the wiring board 1 simultaneously.

The left and right sides lateral wall of conductive shell 2 has respectively the outward extending face 21 of shelving, and shelves face 21 rectangularity shapes, under conductive shell 2 is connected to state on the wiring board 1, shelves the upper surface that face 21 is used for being shelved on wiring board 1.

As shown in Figure 5, shell fragment 3 adopts stainless steel, shell fragment 3 includes the fixed part 31 that is fixed on conductive shell 2 upper end surfaces and the elasticity line ball tongue piece 32, the fixed part 31 of shell fragment and elasticity line ball the tongue piece 32 one-body molded and structures that take the shape of the letter U that are arranged in this conductive shell 2.

As shown in Figure 5, in order further to improve the connection reliability of shell fragment 3 and conductive shell 2, fixed part 31 forms downwards and can offset with the left and right sides lateral wall of conductive shell 2 and spacing gulde edge 34 along left and right sides side.Fixed part 31 forms downwards and can offset with the front lateral wall of conductive shell 2 and spacing snap close limit 35 along front side edge.

As shown in Figure 4, conductive shell 2 offers the through hole 22 that the elasticity line ball tongue piece 32 for shell fragment wears vertically, offer perforation 33 on the fixed part 31 of shell fragment, the top of conductive shell 2 offer can with perforation 33 corresponding screwed holes 23, screw 4 passes perforation 33 and is threaded with screwed hole 23, and the fixed part 31 of conductive shell 2 and shell fragment 3 is fixedly linked by screw 4.

Such as Fig. 6, shown in 7, during installation, offer the draw-in groove 11 of a U-shaped at wiring board 1, and installing hole 12, installing hole 12 is positioned at the rear portion of draw-in groove, the width of the bottom of draw-in groove 11 and conductive shell 2 is suitable, conductive shell 2 is inserted installation from top to bottom, the antetheca 51 that guarantees stopper slot 5 inserts in the draw-in groove 11, the rear wall 52 of stopper slot 5 inserts in the spacing hole 12, antetheca 51 by draw-in

groove

11 and 12 pairs of stopper slots of spacing hole and rear wall 52 circumferentially and successively spacing, the back side of final online road plate is fixed on conductive shell 2 on the wiring board 1 by the mode of welding, has fundamentally guaranteed can not damage syndeton between binding post and the wiring board 1 at face when being connected to screw 4 on the conductive shell 2 and applying torsion.

During use, the through hole 22 interior insertion wires of conductive shell 2, when screwing screw 4, end face offsets on the elasticity line ball tongue piece 32 of the bottom of screw 4 and shell fragment 3, thereby the elasticity line ball tongue piece 32 that orders about shell fragment 3 compresses wire, so that wire offsets with the wall of conductive shell 2 bottom all the time, realize the conducting of circuit; When unscrewing screw 4, the elasticity line ball tongue piece 32 of shell fragment 3 upwards resets, and wire is released, and circuit disconnects.

The binding post size of present embodiment is short, easy to connect reliable, the height dimension of conductive shell 2 is more much lower than the height of conventional binding post on the market, after binding post is installed on the wiring board in addition, the bottom of conductive shell is sunken to the wiring board below, can effectively reduce the height of the wiring board integral body that is connected with this binding post, can make like this height dimension of power supply finished product do very lowly, reduce the overall volume of power supply finished product, reduce manufacturing cost.

Claims

1. power-line terminal, include and be connected to the conductive shell (2) that can supply wire to plug on the wiring board (1), be installed in the shell fragment (3) on this conductive shell (2) and can drive screw (4) on the inwall bottom that described shell fragment is pressed on wire described conductive shell (2), it is characterized in that: the rear portion of described conductive shell (2) bottom surface have opening down and about the stopper slot (5) that runs through, under conductive shell (2) is connected to state on the wiring board (1), the antetheca (51) of described stopper slot (5) is used for being plugged in the draw-in groove (11) that defaults on the wiring board (1), and the rear wall (52) of stopper slot (5) then is used for being plugged in the spacing hole (12) that defaults on the wiring board (1) simultaneously.

2. power-line terminal according to claim 1, it is characterized in that: the left and right sides lateral wall of described conductive shell (2) has respectively the outward extending face (21) of shelving, under conductive shell (2) is connected to state on the wiring board (1), describedly shelve the upper surface that face (21) is used for being shelved on wiring board (1).

3. power-line terminal according to claim 1 is characterized in that: described conductive shell (2) is flat rectangular-shaped.

4. according to claim 1,2 or 3 described power-line terminals, it is characterized in that: described shell fragment (3) includes the fixed part (31) that is fixed on described conductive shell (2) upper end surface and is arranged at the interior elasticity line ball tongue piece (32) of this conductive shell (2), described conductive shell (2) offers the through hole (22) that the elasticity line ball tongue piece (32) for described shell fragment wears along fore-and-aft direction, offer perforation (33) on the fixed part of described shell fragment (31), the top of described conductive shell (2) offer can be corresponding with described perforation (33) screwed hole (23), described screw (4) passes described perforation (33) and is threaded with described screwed hole (23).

5. power-line terminal according to claim 4, it is characterized in that: the fixed part of described shell fragment (31) and the one-body molded and structure that takes the shape of the letter U of elasticity line ball tongue piece (32), described fixed part (31) forms downwards and can offset with the left and right sides lateral wall of described conductive shell (2) and spacing gulde edge (34) along left and right sides side.

6. power-line terminal according to claim 5, it is characterized in that: described fixed part (31) forms downwards and can offset with the front lateral wall of described conductive shell (2) and spacing snap close limit (35) along front side edge.