CN102340083B - Lead connecting device and manufacture method thereof - Google Patents
Lead connecting device and manufacture method thereof Download PDFInfo
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- CN102340083B CN102340083B CN201010235036.XA CN201010235036A CN102340083B CN 102340083 B CN102340083 B CN 102340083B CN 201010235036 A CN201010235036 A CN 201010235036A CN 102340083 B CN102340083 B CN 102340083B
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Abstract
The invention provides a lead connecting device. n leads are fixed on a busbar, wherein n is a natural number. The lead connecting device comprises a fixing device, n spring pieces, and n+1 branch parts, wherein the fixing device is formed by a metal stripe and two tail-end areas parallel to the length direction of the busbar in a mode that two tail ends approach to each other; n spring pieces are n stripes which are cut along the direction basically parallel to the width direction of the busbar; each spring piece comprises a main spring part, a tongue piece part and a line clamping edge, wherein the main spring part is connected with the fixing device and is bent to the direction far away from the surface of the busbar; the tongue piece part is obtained by doubling back the areas except the main spring part of the spring piece along the position of a fold line parallel to the length direction of the busbar; the line clamping edge is formed by bending an area between the tail end of the spring piece and the tongue piece part in a mode that an intersection between the area and the tongue piece part axially approaches to the surface direction of the busbar; and the n+1 branch parts are obtained by respectively bending the metal stripes on two sides of each of n spring pieces to direction far away from the surface of the busbar to a preset position.
Description
Technical field
The present invention relates to a kind of wire connection device and preparation method thereof, more particularly, relate to a kind of for wire connection device on bus-bar (busbar) and preparation method thereof by conductor clamping.
Background technology
Fig. 1 is a kind of existing wire connection device for bus-bar.As shown in Figure 1, for realizing the element of connection, can comprise:
-there is the specific bus-bar of screwed hole;
-mono-group of 40 screw and 40 packing rings.
In order to realize the connection of prior art, user need to proceed as follows:
-binding post is set on wire;
-crimping binding post on cable;
-use screw and packing ring that cable is fixed on bus-bar.
Summary of the invention
Additional aspects of the present invention and advantage part will be set forth in the description below, also have part from describe, to find out significantly, or can in practice of the present invention, obtain.
Now, no matter be flexible cable or rigid cable, can reach 10mm
2and the connection of more height ratio is from types of springs.
It is a kind of 20 years above ripe and confirmed technology that experienced that clamp spring connects.
Have advantages of a lot, such as: cheap, connect, do not need repairing etc. fast.
Therefore, the present invention proposes a kind of by clamp spring technology the scheme for bus-bar.
Except existing spring connects the advantage having, the present invention also tool has the following advantages:
-needn't to copper bar boring and needn't be on copper bar threading, therefore can not weaken mechanical strength and the electric strength of copper bar;
It is even less that-this clamp spring can be applicable to current 25mm pitch width (pitch width);
-owing to thering is integrated lever on clamp spring, thereby operate this spring without any need for instrument.
The invention provides a kind of wire connection device, for n bar wire is fixed on to bus-bar, wherein n is natural number, comprise: fixture, two stub areas parallel with bus-bar length direction by metal band are bent to form in two ends mode near each other, to coordinate the mode of bus-bar cross-sectional profiles that wire connection device is fixed on bus-bar; N spring leaf, n the band to cut out with the substantially parallel direction of bus-bar Width, each spring leaf cutting out only one end is connected with metal band via fixture, each spring leaf comprises: the main spring part being connected with described fixture, and this main spring part is crooked to the direction away from bus-bar surface; Tongue piece part, forms the region outside the main spring part of spring leaf along the position of broken line doubling parallel with bus-bar length direction; With clamp edge, Yi Gai region, region between the end of spring leaf and described tongue piece portion are divided and the tongue piece portion intersection between dividing is that axial the direction bending near bus-bar surface forms, so that after conducting wire, this clamp edge is pressed in wire on the surface of bus-bar; And n+1 branch road part, by being bent to default position to the direction away from bus-bar surface respectively, the metal band that is positioned at each both sides of n spring leaf forms.
The present invention also provides a kind of method of manufacturing wire connection device, this wire connection device is fixed on n bar wire on bus-bar, n is natural number, comprises step: metal band two stub areas parallel with bus-bar length direction are bent to form in two ends mode near each other coordinate the mode of bus-bar cross-sectional profiles that wire connection device is fixed on to the fixture on bus-bar; By to cut and to bend operation to form n spring leaf with the substantially parallel direction of bus-bar Width, each spring leaf cutting out only one end is connected with metal band via fixture, and each spring leaf is further carried out to following steps: the main spring part being connected with described fixture is crooked to the direction away from bus-bar surface; Region outside the main spring part of spring leaf is folded to form to tongue piece part along the position of broken line parallel with bus-bar length direction; And the Yi Gai region, region between the end of spring leaf and described tongue piece portion are divided and the tongue piece portion intersection between dividing is that axial the direction near bus-bar surface is bent to form clamp edge, so that after conducting wire, this clamp edge is pressed in wire on the surface of bus-bar; And by being bent to default position to the direction away from bus-bar surface respectively, the metal band that is positioned at each both sides of n spring leaf forms n+1 branch road part.
Accompanying drawing explanation
In conjunction with the drawings the preferred embodiments of the present invention are described in detail, above and other object of the present invention, characteristic and advantage will become apparent, and wherein identical label is specified the unit of same structure, and therein:
Fig. 1 is the existing wire connection device for bus-bar.
Fig. 2 is arranged on bus-bar and the schematic perspective view of the clamp spring of disconnected cable according to first embodiment of the invention;
Fig. 3 A, Fig. 3 B and Fig. 3 C show respectively the bus-bar of three kinds of width;
Fig. 4 shows the first pictorial diagram according to the wire connection device of first embodiment of the invention;
Fig. 5 shows according to the planar elevation view of the free position of the clamp spring of first embodiment of the invention;
Fig. 6 shows the first punching press scheme schematic diagram according to the clamp spring of first embodiment of the invention;
Fig. 7 show according to first embodiment of the invention by clamp spring fitting to bus-bar and the planar elevation view of the state of disconnected cable;
Fig. 8 shows the state plane front view that utilizes clamp spring that cable is connected with bus-bar according to first embodiment of the invention;
Fig. 9 shows the first punching press scheme dimensional drawing according to the clamp spring of first embodiment of the invention;
Figure 10 shows the first punching press scheme functional area figure according to the clamp spring of first embodiment of the invention;
Figure 11 shows the first punching press scheme schematic diagram that connects clamp spring according to the multiple spot of first embodiment of the invention;
Figure 12 shows according to first of the first punching press scheme of the clamp spring of first embodiment of the invention and improves schematic diagram;
Figure 13 shows according to second of the first punching press scheme of the clamp spring of first embodiment of the invention and improves schematic diagram;
Figure 14 shows the second punching press scheme dimensional drawing according to the clamp spring of first embodiment of the invention;
Figure 15 shows the second punching press scheme schematic diagram that connects clamp spring according to the multiple spot of first embodiment of the invention;
Figure 16 shows the second pictorial diagram according to the wire connection device of first embodiment of the invention;
Figure 17 shows according to the clamp spring of first embodiment of the invention isometric illustration schematic diagram in kind;
Figure 18 shows the schematic diagram of the angle ψ described in Figure 17;
Figure 19 shows according to the pictorial diagram of the wire connection device of second embodiment of the invention;
Figure 20 shows according to the planar elevation view of the clamp spring of second embodiment of the invention;
Figure 21 shows according to the planar elevation view of the free state of the clamp spring of second embodiment of the invention;
Figure 22 show according to second embodiment of the invention by clamp spring fitting to bus-bar and the planar elevation view of the state of disconnected cable;
Figure 23-Figure 26 shows a series of state procedure figure that utilize clamp spring that cable is connected with bus-bar according to second embodiment of the invention;
Figure 27 shows according to the schematic diagram of the branch road Partial Height of second embodiment of the invention;
Figure 28 shows according to the schematic diagram of the punching press scheme of the clamp spring of second embodiment of the invention; And
Figure 29 shows the schematic diagram in kind that connects clamp spring according to the multiple spot of second embodiment of the invention.
Embodiment
Below with reference to the accompanying drawing that the embodiment of the present invention is shown, the present invention is fully described.Yet the present invention can realize in many different forms, and not will be understood that and be limited to embodiment described here.On the contrary, provide these embodiment to make the disclosure thorough and complete, and will give full expression to scope of the present invention to those skilled in the art.In the accompanying drawings, for the sake of clarity amplified assembly.
Should be appreciated that identical Reference numeral indicates identical element.Term "and/or" used herein comprises any and all combinations of one or more relevant projects of listing.
Although should be appreciated that and can use term first, second, third, etc. to describe each element, assembly and/or part here, these elements, assembly and/or part are not limited by these terms.These terms are only for mutually making a distinction element, assembly or part.Therefore, the first element discussed below, assembly or part can be called the second element, assembly or part under the prerequisite that does not deviate from the present invention's teaching.
Unless otherwise defined, all terms used herein (comprising technology and scientific terminology) have the common identical meanings of understanding with those skilled in the art.It should also be understood that, such as those terms that define, should be interpreted as having the implication consistent with implication in they contexts in correlation technique in common dictionary, and do not apply idealized or extremely formal meaning explain, unless definition so clearly here.
In this explanation, the content of example is provided to help complete understanding with reference to the disclosed various exemplary embodiments of the present invention of accompanying drawing.Therefore, those of skill in the art recognize that in the situation that do not depart from claimed the spirit and scope of the present invention, can make various changes and modifications exemplary embodiment described herein.For clarity and brevity, by the description of omitting known function and structure.
Fig. 2 is arranged on bus-bar 2 and the schematic perspective view of the clamp spring 1 of disconnected cable according to first embodiment of the invention.This clamp spring 1 is for cable, wire etc. being connected to the wire connection device of bus-bar 2.According to the wire connection device of Fig. 2, for a plurality of cables, wire etc. are connected to bus-bar 2, need following element:
-bus-bar, and without holing on this bus-bar;
-a plurality of clamp springs as shown in Figure 2.
For user, the required behavior of taking comprises:
-open clamp spring;
-insertion cable, wire.
Obviously, compare with the prior art of Fig. 1, still less, to bus-bar, without specific (special) requirements, and operation is more simple, convenient for user for number of elements required for the present invention.
As shown in Figure 2, clamp spring 1 is installed on bus-bar 2 as wire connection device, to wire or cable are closely connected with bus-bar 2.Clamp spring 1 comprise spring leaf 21, for limit clamp spring spring leaf 21 maximum open 2 U-shaped parts 22 and for clamp spring 1 being clamped in on bus-bar 2 two fixedly sides 23 and 24.Spring leaf 21 comprises main spring part 211, as the spring leaf extension 212 of operating lever and the effective edge of spring leaf 21 along 213.According to actual needs, the dimension D shown in calculating chart 2 is so that clamp spring 1 can be easily mounted on bus-bar 2.
Conventionally having thickness is the bus-bar of three kinds of sizes of 5mm, and obviously the present invention can cover the situation of these 3 kinds of bus-bars, 15 * 5,20 * 5 and 32 * 5.Fig. 3 A, Fig. 3 B and Fig. 3 C show respectively the bus-bar of above-mentioned three kinds of width.Yet, it should be appreciated by those skilled in the art that the application is not limited to three kinds of sizes of the bus-bar shown in Fig. 3, the application also can be applicable to other sizes of bus-bar.Equally, although the cross section of the bus-bar shown in accompanying drawing is rectangle, it should be appreciated by those skilled in the art that according to actual needs, it is trapezoidal, circular, oval etc. that the cross section of bus-bar also can be.Now, those skilled in the art can be easily change two fixedly side 23 and 24 shapes according to the disclosure, to coordinate the mode of bus-bar cross-sectional profiles that wire connection device is fixed on bus-bar.
Fig. 4 shows the first pictorial diagram according to the wire connection device of first embodiment of the invention.As shown in Figure 4, wherein show according to the vertical view of the single clamp spring of first embodiment of the invention, lateral body figure, be fixed on the pictorial diagram of the single clamp spring on bus-bar and be fixed on vertical view and the end view that multiple spot on bus-bar connects clamp spring.
Fig. 5 shows according to the planar elevation view of the free position of the clamp spring 1 of first embodiment of the invention.As shown in Figure 5, clamp spring 1 is not combined with bus-bar, presents state freely.Alternatively, two planes that consist of side 51 and 52 respectively can be set, and structure is in an acute angle each other, so that clamp spring is tightened on bus-bar 2.
Fig. 6 shows the first punching press scheme schematic diagram according to the clamp spring of first embodiment of the invention.The mid portion of metallic plate forms the spring leaf of clamp spring, i.e. spring leaf in Fig. 7 71.Live part 61 (being identified by wave) plays main spring.The shape of end 63 and length must be optimised to be linked because this end Qiao road makes branch road 1 and 2, and make this end can be used for limiting the maximum open of spring.Preferably, region 64 (the left side darker regions of being delimited by solid black lines) is stamped, the object of this punching press is to make this part of spring to have rigidity so that the spring deformation that can not bend when user's operating spring, " XX cross section " in Fig. 6 shows the sectional view of this part after punching press, compare with other regions, region 64 forms a projection.Preferably, similar with region 64, region 62 (the right side darker regions of being delimited by solid black lines) is stamped, and this part that the object of this punching press is to make to embed the clamp spring in the vertical component of this part has rigidity.Region by A, B, C, D, E, F and G indication in Fig. 6 corresponds respectively to the region of being indicated by A, B, C, D, E, F and G in Fig. 5.
Fig. 7 shows and according to first embodiment of the invention, clamp spring 1 is installed on bus-bar 2 and the planar elevation view of the state of disconnected cable.As shown in Figure 7, when clamp spring 1 is installed on bus-bar 2, the end 711 of spring leaf 71 contacts with the upper surface of bus-bar 2, to form a pressure F1 who pushes down bus-bar 2 upper surfaces.
Fig. 8 shows the state plane front view that utilizes clamp spring 1 that cable is connected with bus-bar 2 according to first embodiment of the invention.As shown in Figure 8, the end 711 of spring leaf 71 produces pressure F2, to push cable 141, thereby cable 81 is clamped and is connected with bus-bar 2.In the present embodiment, cable 81 is for example 10mm
2or 16mm
2wire.Also can be used for as required the wire of other sizes.
Fig. 9 shows the first punching press scheme dimensional drawing according to the clamp spring of first embodiment of the invention.Figure 10 shows the first punching press scheme functional area figure according to the clamp spring of first embodiment of the invention.
Hereinafter, first to be applicable to connecting 10mm
2cable be that example is carried out parameter declaration.
D
5' minimum dimension study plot be set to 6mm.Thus, guarantee: the pressure F1 (as shown in Figure 7) 1) obtaining is between 5Kg and 7Kg; 2) after spring leaf is opened completely by 10 times, pressure F1 can not reduce; 3) the pressure F2 (as shown in Figure 8) obtaining is between 10Kg and 15Kg.
Need the variable of restriction as follows:
The characteristic of-metal and metallurgically;
The thickness of-metallic plate;
-Monolithic spring shape in free position;
Each size shown in-Fig. 9:
Then, to be applicable to 16mm
2cable is that example is carried out parameter declaration.
D
5' minimum dimension study plot be set to 7mm.Thus, guarantee: the pressure F1 (as shown in Figure 7) 1) obtaining is between 6Kg and 10Kg; 2) after spring leaf is opened completely by 10 times, pressure F1 can not reduce; 3) the pressure F2 (as shown in Figure 8) obtaining is between 15Kg and 25Kg.
As shown in figure 10, hatched example areas 101 is regions that clamp spring plays fixed function.Horizontal line region 102 is lever region.And wave region 103 is real spring function regions.Cable pressure function is guaranteed at edge 105.The twisted wire location (indiffusion) of cable is guaranteed at edge 104.
According to the clamp spring of first embodiment of the invention, twisted cable or solid cable are connected in any one of bus-bar set.Each clamp spring only allows single connection.
Clamp spring is the unique sheet metal being obtained by the laths of metal from punching press, then through repeatedly crooked.The final position of clamp spring on bus-bar makes cable axle vertical with bus-bar length axle.
Figure 11 shows the first punching press scheme schematic diagram that connects clamp spring according to the multiple spot of first embodiment of the invention.
As shown in figure 11, integrated several spring (D on a metal tape
5' window).In this case, a branch road is that 2 springs that are positioned at its both sides play opening limitation function.Metal tape can comprise 4,6,8,10 or even more springs (tie point).Only need to regulate D
11'.
If need, the clamp edge of spring leaf can be arranged on to the same side, left side as shown in figure 11.Or, the clamp edge of a plurality of spring leafs can be arranged on to not homonymy, for example, the clamp edge of adjacent two spring leafs can be on left side or the right side of metal tape.
As long as the design of spring provides the same thickness of steel plate interior required pressure, spring connection can be used in 10mm
2and for 16mm
2cable.
Figure 12 shows according to first of the first punching press scheme of the clamp spring of first embodiment of the invention and improves schematic diagram.As shown in figure 12, different according to the size of the material of metallic plate, applied bus-bar and cable, can change ideally the shape of effective spring section of spring leaf, so as along the pressure on any point of its length lower than the acceptable maximum intensity of material.This causes having non-constant width.In Figure 12, the width of effective spring section of spring leaf narrows down gradually with the direction of the position near lever region 102, and the both sides of cutting effective spring section make to narrow down gradually to the direction of the position near lever region 102.But the shape that those skilled in the art should understand that this effective spring section is not limited to the shape shown in Figure 12.
Known according to Figure 11 and Figure 12, it is only schematically, wherein the reinforcement on not shown spring leaf also.But to it should be appreciated by those skilled in the art that in order gaining in strength, at multiple spot, to connect on the spring leaf of clamp spring, also can punching press reinforcement.
Figure 13 shows according to second of the first punching press scheme of the clamp spring of first embodiment of the invention and improves schematic diagram.The improvement schematic diagram that has wherein provided single clamp spring is connected the improvement schematic diagram of clamp spring with multiple spot.According to Figure 13, in the spring function region 103 shown in Figure 10, cut a window, while lifting due to lever region 102 to improve in spring function region 103 deformation effects that produce.
Window shown in Figure 13 is wider the closer to the width of the position of lever region 102.But those skilled in the art should understand that this window is not limited to the shape shown in Figure 13.
According to of the present invention open, obviously, the improvement shown in Figure 13 is equally applicable to the second punching press scheme according to the clamp spring of first embodiment of the invention.And, it should be appreciated by those skilled in the art that according to actual demand, the first improvement according to the present invention and second can be improved and is applied to according to the application's clamp spring simultaneously or is applied to respectively the clamp spring according to the application.
Known according to the improvement of Figure 12 and 13, to its objective is in order working as and to lift described tongue piece portion timesharing, the suffered stress of described effective spring section diminishes gradually with the direction of the position near lever region 102.Therefore,, according to Figure 12 and the given example of Figure 13, those skilled in the art can, in conjunction with these two kinds of improvement, make the overall width of effective spring section narrower the closer to the width of the position of lever region 102.That is, cut both sides and the zone line of effective spring section simultaneously.
Figure 14 shows the second punching press scheme dimensional drawing according to the clamp spring of first embodiment of the invention.
Be with the scheme of punching press shown in Fig. 9 difference: on spring leaf and branch road, formed respectively corresponding excrescence and groove.Branch road groove (D after manufacturing
6size) should be in as upper/lower positions: the excrescence (D of spring leaf
7size) corresponding to complete opening, can not exceed outside the window being formed by branch road 1 and branch road 2.Also, excrescence and groove also can be used for limiting the maximum height that described spring leaf is opened.
Figure 15 shows the second punching press scheme schematic diagram that connects clamp spring according to the multiple spot of first embodiment of the invention.
Can be in a larger rectangle metallic plate integrated a plurality of spring (D
1window).In this case, D
5should be recalculated (being minimized).Plate can comprise 4,6,8,10 or even more clamp spring (connector).Only need to regulate D
11size.The insertion of cable can be from a side or alternatively from opposite side.As long as the setting of spring provides the same thickness of steel plate interior desired pressure, spring connection also can be used in 10mm
2and 16mm
2cable.
Known according to Figure 14 and Figure 15, it is only schematically, wherein the reinforcement on not shown spring leaf also.But to it should be appreciated by those skilled in the art that in order gaining in strength, at multiple spot, to connect on the spring leaf of clamp spring, also can punching press reinforcement.And, spring opening is only shown in left side in Figure 15, but it should be appreciated by those skilled in the art that as required, spring opening also can be set on right side.
In addition, the setting of above-mentioned size is only schematically, according to the difference of metal material and applicable bus-bar etc., can apply other sizes.
The standard-required of IEC 60999 has been described hereinafter.
IEC 60999 standards the 8.9th joint regulation: clamping unit should have suitable mechanical strength.And the clamping unit for non-helical shape is checked the flexibility of clamping unit by the test of the 9.3rd joint and 9.5 joints.
The 9.3rd joint regulation: utilize the wire with maximum gauge to test according to the non-helical clevis clamping unit of the 7.5th and 7.6 joints:
-real core only;
-rigidity (real core and stranded) only;
-rigidity (real core and stranded) and soft.
For being intended to the wire of every type for it by clamping unit, carry out inserting for five times and disconnection.When the wire inserting for the 4th time is clamped in identical place, except the 5th time, use new wire at every turn.For each insertion, wire is pushed into as much as possible in clamping unit or is inserted into so that suitable connection is obvious.After each insertion, thereby following winding raod line, wire walks 90 ° and be disconnected.After these tests, clamping unit should be not damaged to such an extent as to be damaged their further use.
9.5 joint regulations: after 9.4 test, the tractive effort providing in table 3 should be applied to each according to the wire of 9.4 tests.Pinching screw or nut, if any, should do not strained again for this test.Power should not wrenched and apply 1 minute along the axis direction of wire.
Relation between table 3 tractive effort and transverse cross-sectional area
| Transverse |
0,2 | 0,34 | 0,5 | 0,75 | 1,0 | 1,5 | 2,5 | 4 | 6 | 10 | 16 | 25 | 35 |
| Tractive effort N | 10 | 15 | 20 | 30 | 35 | 40 | 50 | 60 | 80 | 90 | 100 | 135 | 190 |
In test process, wire should not skid off from clamping unit.
7.3 have provided theoretical diameter and the specified connection capacity of maximum wire and can connect the relation between wire in table 1
The specified connection capacity of table 1-wire and the relation between diameter
Figure 16 shows the second pictorial diagram according to the wire connection device of first embodiment of the invention, and it combines the improvement shown in Figure 13.As shown in figure 16, wherein show according to vertical view, the end view of the single clamp spring of first embodiment of the invention, be fixed on the pictorial diagram of the single clamp spring on bus-bar and be fixed on vertical view and the end view that multiple spot on bus-bar connects clamp spring.
Figure 17 shows according to the clamp spring of first embodiment of the invention isometric illustration schematic diagram in kind.The stereogram that it should be appreciated by those skilled in the art that Figure 17 is only schematically, and all features or the improvement of not shown the first embodiment.Figure 18 shows the schematic diagram of the angle ψ described in Figure 17.
According to the feature of the clamp spring of first embodiment of the invention, comprise following 3 points, correspond respectively to the feature that the 172He region, 171, region, region 173 in Figure 17 demonstrates:
1), for the region 171 consisting of dotted line, the rectangular shape of integral part will be suitable for the periphery of the bus-bar that this clamp spring will assemble.
2), for region 172, middle spring leaf is divided into 3 functional areas:
d in Fig. 9
1' the long region of length second that represents is highlighted as second portion.It is crooked by 180 degree therebetween.The function of this part is as the lever of moving the spring consisting of first.
180 ° of angle ψ < between the plane that ，You first forms as shown in figure 18 and the plane consisting of second portion to form a suitable space so that the insertion of the cable that will connect between second portion and bus-bar surface.
Between second portion and third part, exist an obtuse angle so that by dimension D
3' and D
7' the rectangular outward flange that forms is the final live part of spring leaf, it is sent to cable core for the pressure that the first by spring is generated, and cable is closely abutted against on bus-bar.
3) for region 173,2 side branch roads in the both sides of spring leaf form 2 symmetries and parallel volume, vertical with this bus-bar axis and extend upward, wherein by D
3' and D
7' the outstanding edge that forms, the rectangular opposite end that forms can move.
Hereinafter, 1-18 by reference to the accompanying drawings, to being summarized as follows according to the feature of the clamp spring of first embodiment of the invention:
1) part that description and form description consist of flat carbon steel or corrosion resistant plate operations such as punching press (punching), fluting (recessing), bending and cuttings with reference to the accompanying drawings.
2) clamp spring section is designed such that the axle of cable/wire is vertical with bus-bar length axle and roughly parallel with bus-bar surface.
3) in the plane that the contact surface between cable and copper bar (bus-bar) limits on the surface of this bus-bar self.
4) first the effect of spring passes through flexural spring sheet along D
2' part of length obtains.D along spring leaf
1' the second length part of size is bent 180 degree angles therebetween.The spring pressure that it produces the first by spring leaf without shifting ground is delivered to third part.
5) the second sweep is operating lever, and it uses as button, with the first of mobile spring sheet, makes it almost substantially in rotary moving along the corresponding center of the embedded part of spring leaf with being embedded into clamp spring main body.
6) by D
7' length and D
3' part that forms of width is linked to the end of lever, it is substantially along advancing with the rotation identical compared with short radius, and due to two branch roads on central spring sheet both sides, this being traveling in opened direction and is limited.
7) according to the standard transverse cross-sectional area of main standard cable, define D
1size.D
1the size corresponding with the specification defining in international standard matches.
8) side branch road prevents that twisted wire is by D
7' and D
3' form rectangular edge extruding time diffusion, and contribute to better cable to connect.
9) two planes that limited by the lateral parts of the clamp spring along bus-bar axle; be two planes of the dotted line limit in Figure 17; on vertical axis, form acute angle; and the Length Ratio bus-bar width between these parts short in case between clamp spring section and bus-bar mineralization pressure, thereby avoid sliding and guaranteeing the better mechanical strength on bus-bar.
10), when spring-operated, the excrescence in the first embodiment (seeing the excrescence of Figure 13), advances near the edge drawing in the solid black lines as shown in figure 17 of 2 branch roads.
11) in the 4th, mention along D
1' the extending to outside the branch road of side of sweep of dimensions length, the operating lever manually using to form a utilization finger.
12) second portion (operating lever) or by by coach spring sheet D
1' partially folded 180 degree form, or by advance along D
1' length formed by the spring leaf of part punching press, to obtain more rigid lever, and do not have the danger of mechanical deformation.
13) designing along D
2' variable of width of first of length is not constant to obtain along the mechanical strain of spring effective length constant.The width of this first should be along with starting the increase of the length measured and reduce gradually being fixed on the starting point of the spring in fixation side face portion.
14) design comprises several spring leafs and the associated side branch road pair of punching press in a part of steel plate, and this allows several tie points, has Steel material still less and set-up time still less.
15) it also comprises that the number that the number of several tie points (several spring leaf) and side branch road is spring leaf adds one.Inner branch road receives the excrescence of 2 different adjacent springs sheets.
16) variable of the width of design spring leaf changes according to its total length.
Figure 19 shows according to the pictorial diagram of the wire connection device of second embodiment of the invention.As shown in figure 19, wherein show according to vertical view, the end view of the clamp spring of second embodiment of the invention and the end view that is fixed on the clamp spring on bus-bar.
Figure 20 shows according to the planar elevation view of the clamp spring of second embodiment of the invention.As shown in figure 20, wherein show according to the free state front view of the clamp spring of second embodiment of the invention, the front view that is fixed on the front view on bus-bar and connected cable.
Figure 21 shows according to the planar elevation view of the free state of the clamp spring 4 of second embodiment of the invention.As shown in figure 21, clamp spring 4 is not combined with bus-bar, presents state freely.Preferably, two planar shaped that consist of side 211 and 212 are respectively set in an acute angle, the application of force while clamp spring 4 being placed on bus-bar with box lunch.
Figure 22 shows and according to second embodiment of the invention, clamp spring 4 is installed on bus-bar 2 and the planar elevation view of the state of disconnected cable.As shown in figure 22, when clamp spring 4 is installed on bus-bar 2, the end 224 of spring leaf 223 contacts with the upper surface of bus-bar 2, to form a pressure F1 ' who pushes down bus-bar 2 upper surfaces.Here, the minimum value of F1 ' is set to higher than 8Kg.
Figure 23-Figure 26 shows a series of state procedure figure that utilize clamp spring 4 that cable is connected with bus-bar 2 according to second embodiment of the invention.As shown in figure 23, the bottle opener of a tapered finger 6 is inserted to clamp springs 4, bottle opener 6 is applied to power F3 upwards, to the end of spring leaf 223 224 is lifted, that is, and make end 224 not with the Surface Contact of bus-bar 2.Form thus the state diagram shown in Figure 24.The maximum full open position of spring leaf 223 is that the end 224 of spring leaf 223 and the summit 246 of side shoot 245 contact.After spring leaf 223 is opened completely, cable 7 is placed in the chamber 247 forming between spring leaf 223 and bus-bar 2, thereby forms the state shown in Figure 25.After in cable 7 is placed into chamber 247, extract bottle opener 6, retracting spring sheet 223, to form the state shown in Figure 26.As shown in figure 26, the end 224 of spring leaf 223 (the oblique line part in figure) produces pressure F2 ', to push cable 7, thereby cable 7 is clamped and is connected with bus-bar 2.In the present embodiment, the minimum value of pressure F2 ' is set to be greater than 15Kg.
In the first to second embodiment, F1, F1 ' are not during connection cable, the power that clamp spring end applies bus-bar.F2, F2 ' are as the maximum cable (mm that allows
2) while being connected (30% that the Height Estimation of general online core is initial cable diameter time), from the power of clamp spring.The thickness of F1 and F2 and bus-bar is irrelevant, and they are only relevant with the cross section of the cable connecting.For the bus-bar of 8mm thickness, corresponding to 8mm thickness, may need to manufacture new parts, but F1 and F2 do not change.
In fact, have for opening the design of the lever of spring and because this cable attended operation is most, only use once the seemingly scheme of a cost waste.
In a second embodiment, because being carries out opening operation by the conventional instrument bottle opener of those skilled in the art, for the Steel material that builds clamp spring still less, and the bending of steel processes lessly, saved expense.
The design of second embodiment of the invention provides the possibility that reduces the Steel material using and the actual cost that therefore contributes to reduce parts.
The design of second embodiment of the invention is more visible for entering of cable, and the finger piece that the lumen pore entering due to cable is not used on lever that keep-spring opens is covered.
Figure 27 shows according to the schematic diagram of the branch road Partial Height of second embodiment of the invention.As shown in figure 27, shown in the height that the size h1 of branch road part need to be opened by spring leaf 223 and Figure 22, length d 1 sum of part 224 (being clamp edge) limits, and exerts pressure to cable strand core in this clamp edge 224.
Figure 28 shows according to the schematic diagram of the punching press scheme of the clamp spring of second embodiment of the invention.The schematic diagram that has wherein provided single clamp spring is connected the schematic diagram of clamp spring with multiple spot.According to Figure 28, in spring function region, cut a window, to improve the deformation effect producing in spring function region when tongue area due to spring leaf front end lifts.And at tongue area, two square window have been cut, the deformation effect producing when preventing that inserting bottle opener lifts tongue area.When doubling tongue area, these two square window are overlapping.
The window of place, spring function district shown in Figure 28 cutting be shaped as nearly triangle, base approaches lever region.But the window of this cutting is not limited to the shape shown in Figure 28.
According to of the present invention open, it should be appreciated by those skilled in the art that according to actual demand, can will be applied to the clamp spring according to second embodiment of the invention according to the improvement of the clamp spring of first embodiment of the invention and design thereof.Therefore, do not repeat them here.
Figure 29 shows the schematic diagram in kind that connects clamp spring according to the multiple spot of second embodiment of the invention.
Although described the present invention in conjunction with being considered at present most realistic and optimum embodiment, but those skilled in the art are to be understood that and the invention is not restricted to the disclosed embodiments, on the contrary, the present invention is intended to cover various modifications and the equivalent construction comprising within the spirit of claims and category.
Claims (36)
1. a wire connection device, for n bar wire is fixed on to bus-bar, wherein n is natural number, comprising:
Fixture, two stub areas parallel with bus-bar length direction by metal band are bent to form in two ends mode near each other, to coordinate the mode of bus-bar cross-sectional profiles that wire connection device is fixed on bus-bar;
N spring leaf, is n the band to cut out with the substantially parallel direction of bus-bar Width, and each spring leaf cutting out only one end is connected with metal band via fixture, and each spring leaf comprises:
The main spring part being connected with described fixture, this main spring part is crooked to the direction away from bus-bar surface;
Tongue piece part, forms the region outside the main spring part of spring leaf along the position of broken line doubling parallel with bus-bar length direction; With
Clamp edge, Yi Gai region, region between the end of spring leaf and described tongue piece portion are divided and the tongue piece portion intersection between dividing is that axial the direction bending near bus-bar surface forms, so that after conducting wire, this clamp edge is pressed in wire on the surface of bus-bar; And
N+1 branch road part, forms by the metal band that is positioned at each both sides of n spring leaf is bent to default position to the direction away from bus-bar surface respectively.
2. wire connection device as claimed in claim 1, wherein, a part for described tongue piece part extends to outside described branch road part to form the operating lever of operating spring sheet on described bus-bar Width.
3. wire connection device as claimed in claim 2, wherein divides and comprises a reinforcement extending along bus-bar Width from tongue piece surface elevation in described tongue piece portion.
4. wire connection device as claimed in claim 1, wherein said tongue piece part is substantially vertical with bus-bar surface.
5. wire connection device as claimed in claim 4, wherein said tongue piece is partly gone up with the two side areas of broken line almost symmetry and is respectively comprised a window, and these two windows overlays.
6. wire connection device as claimed in claim 1, wherein, described in each, the projection of the described clamp edge of spring leaf on bus-bar length direction is positioned at described branch road part within the party makes progress the formed region of projection.
7. the wire connection device as described in any one claim of claim 1-6, wherein, described in each, the shape and size at the clamp edge of spring leaf are conditioned so that each branch road part can be connected to each other.
8. the wire connection device as described in any one claim of claim 1-6, wherein, the width at described clamp edge is greater than the width of tongue piece part.
9. wire connection device as claimed in claim 8, wherein the width of main spring part arranges according to the size of the cross section of the wire that will clamp.
10. wire connection device as claimed in claim 9, wherein conductive wire cross-section is 10mm
2time, the minimum widith of main spring part is 6mm; And conductive wire cross-section is 16mm
2time, the minimum widith of main spring part is 7mm.
11. wire connection devices as claimed in claim 1, wherein form an obtuse angle between tongue piece part and the projection of clamp edge on bus-bar length direction.
12. wire connection devices as claimed in claim 1, the projection of two planes that described two stub areas of wherein said fixture form on bus-bar length direction is parallel to each other or structure is in an acute angle.
13. wire connection devices as claimed in claim 1, wherein, the distance between the projection of described two stub areas on bus-bar length direction equals or is shorter than the width of bus-bar.
14. wire connection devices as claimed in claim 1, the region being wherein partly connected with the main spring of each spring leaf in fixture comprises a reinforcement extending along bus-bar Width from this region surface protuberance.
15. wire connection devices as claimed in claim 1, also comprise respectively corresponding groove and excrescence, the maximum height arriving to limit described clamp edge on wherein said each branch road part and each spring leaf.
16. wire connection devices as claimed in claim 1, wherein, when lifting described tongue piece portion timesharing, the suffered stress of described main spring part diminishes gradually along the position near fixture to the direction of the position near tongue piece part.
17. wire connection devices as claimed in claim 16, the width of wherein said main spring part narrows down gradually along the position near fixture to the direction of the position near tongue piece part.
18. wire connection devices as described in claim 16 or 17, wherein the main spring part zone line at each spring leaf comprises a window, the width of described window becomes large gradually along the position near fixture to the direction of the position near tongue piece part.
19. 1 kinds of methods of manufacturing wire connection device, this wire connection device is fixed on n bar wire on bus-bar, and n is natural number, comprises step:
Metal band two stub areas parallel with bus-bar length direction are bent to form in two ends mode near each other coordinates the mode of bus-bar cross-sectional profiles that wire connection device is fixed on to the fixture on bus-bar;
By to cut and to bend operation to form n spring leaf with the substantially parallel direction of bus-bar Width, each spring leaf cutting out only one end is connected with metal band via fixture, and each spring leaf is further carried out to following steps:
The main spring part being connected with described fixture is crooked to the direction away from bus-bar surface;
Region outside the main spring part of spring leaf is folded to form to tongue piece part along the position of broken line parallel with bus-bar length direction; With
Yi Gai region, region between the end of spring leaf and described tongue piece portion are divided and the tongue piece portion intersection between dividing is that axial the direction near bus-bar surface is bent to form clamp edge, so that after conducting wire, this clamp edge is pressed in wire on the surface of bus-bar; And
By being bent to default position to the direction away from bus-bar surface respectively, the metal band that is positioned at each both sides of n spring leaf forms n+1 branch road part.
20. methods as claimed in claim 19, further comprise: bend described tongue piece and partly make its part on described bus-bar Width, extend to outside described branch road part to form the operating lever of operating spring sheet.
21. methods as claimed in claim 20, further comprise: at central area punching press one reinforcement of tongue piece part.
22. methods as claimed in claim 19, further comprise: bend described tongue piece and partly make it substantially vertical with bus-bar surface.
23. methods as claimed in claim 22, further comprise: in the described tongue piece part of each spring leaf, cut out respectively a window with the two side areas of broken line almost symmetry, and these two windows overlays.
24. methods as claimed in claim 19, wherein, described in each, the projection of the described clamp edge of spring leaf on bus-bar length direction is positioned at described branch road part within the party makes progress the formed region of projection.
25. methods as described in any one claim of claim 19-24, further comprise: regulate the shape and size at clamp edge of each spring leaf so that each branch road part can be connected to each other.
26. methods as described in any one claim of claim 19-24, wherein, the width at clamp edge is greater than the width of tongue piece part.
27. methods as claimed in claim 26, wherein the width of main spring part arranges according to the size of the cross section of the wire that will clamp.
28. methods as claimed in claim 27, wherein conductive wire cross-section is 10mm
2time, the minimum widith of main spring part is 6mm; And conductive wire cross-section is 16mm
2time, the minimum widith of main spring part is 7mm.
29. methods as claimed in claim 19, wherein form an obtuse angle between tongue piece part and the projection of clamp edge on bus-bar length direction.
30. methods as claimed in claim 19, wherein, the projection of two planes that described two stub areas of described fixture form on bus-bar length direction is parallel to each other or structure is in an acute angle.
31. methods as claimed in claim 19, wherein, the distance between the projection of described two stub areas on bus-bar length direction equals or is shorter than the width of bus-bar.
32. methods as claimed in claim 19, further comprise: regional center punching press one reinforcement being partly connected with the main spring of each spring leaf in fixture.
33. methods as claimed in claim 19, further comprise: on described each branch road part and each spring leaf, cut out respectively corresponding groove and excrescence, the maximum height arriving to limit described clamp edge.
34. methods as claimed in claim 19, further comprise: cut described main spring part, with box lunch, lift described tongue piece portion timesharing, the suffered stress of described main spring part diminishes gradually along the position near fixture to the direction of the position near tongue piece part.
35. methods as claimed in claim 34, further comprise: cut the both sides of described main spring part so that the width of described main spring part narrows down gradually along the position near fixture to the direction of the position near tongue piece part.
36. methods as described in claim 35 or 34, further comprise: the zone line in the main spring part of each spring leaf cuts out a window, and the width of the window of described cutting becomes large gradually along the position near fixture to the direction of the position near tongue piece part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010235036.XA CN102340083B (en) | 2010-07-23 | 2010-07-23 | Lead connecting device and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010235036.XA CN102340083B (en) | 2010-07-23 | 2010-07-23 | Lead connecting device and manufacture method thereof |
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| CN102340083A CN102340083A (en) | 2012-02-01 |
| CN102340083B true CN102340083B (en) | 2014-02-26 |
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| CN102655277B (en) * | 2011-03-02 | 2014-10-15 | 施耐德电器工业公司 | Connecting device and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1855353A2 (en) * | 2006-04-21 | 2007-11-14 | Wago Verwaltungsgesellschaft mbH | Electric plug connector |
| CN201303059Y (en) * | 2008-09-24 | 2009-09-02 | 富士康(昆山)电脑接插件有限公司 | Contact terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003317845A (en) * | 2002-04-22 | 2003-11-07 | Enplas Corp | Contact pin, forming method of contact pin, socket for electric component, and manufacturing method of electric component |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1855353A2 (en) * | 2006-04-21 | 2007-11-14 | Wago Verwaltungsgesellschaft mbH | Electric plug connector |
| CN201303059Y (en) * | 2008-09-24 | 2009-09-02 | 富士康(昆山)电脑接插件有限公司 | Contact terminal |
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| Title |
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| JP特开2003-317845A 2003.11.07 |
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