CN201290200Y

CN201290200Y - Leadless and non-welding circuit

Info

Publication number: CN201290200Y
Application number: CNU200820138896XU
Authority: CN
Inventors: 卡门·拉匹沙达
Original assignee: CARMEN LAPISADA
Current assignee: CARMEN LAPISADA
Priority date: 2008-10-10
Filing date: 2008-10-10
Publication date: 2009-08-12
Anticipated expiration: 2018-10-10

Abstract

The utility model provides an electronic circuit, comprising a printed circuit board distributed with guiding rails on surface, a surface assembly element containing a conducting sheet contacted with one or more guiding rails, an elastic insulation piece adhered on the circuit board and clamp of hard material adhered on the elastic insulation sheet. The clamp of hard material is fastened on the circuit board for pressing the electronic element onto the circuit board. The connection between the electronic element and the circuit board is implemented by lead wire with a hook, the lead wire is pressed into a small hole, the small hole lies on a conductor, close to the conductor or between the insulation material and the insulation lead wire. The clamp comprises connection pins with a plurality of barbs, the connection pins thrust through an elastic layer and the printed circuit board for fixing the clamp onto the printed circuit board. The elastic layer is made of insulation plastic foam or thermal denaturation plastic film. Another embodiment comprises a plastic vacuum plate, and the plate is enclosed on the circuit board for pressing the electronic element against the circuit board.

Description

Unleaded and no welding circuit

Background technology

People make great efforts lead and other noxious substance are eliminated from living environment always, especially remove from children's room and toy.In the process of following such effort, people need propose a kind of Wuxi welding lighting circuit that is used for shoes and other clothing.It is mostly gluing or be glued at heel inside to be hidden in circuit in the shoes, generally all with external isolation; In case but these shoes enter landfill yard by different way, its poisonous lead in the inside just may soak into out contaminated environment.

Be present in cell-phone, television set, computer and similarly the pad of electronic installation on it same problem is all arranged, especially those finally can enter the consumer goods of landfill yard in every way.People have done a large amount of work and have attempted to forbid leaded solder flux and pad.Some attempt with the soldering contact, but find that projection appears in pure tin easily, is referred to as " dendron " (Dendrite) in tiny circuit, perhaps " tin silk " (tinwhiskers), these tin silks can cause circuit to be short-circuited.This problem can solve by add a spot of lead in the pure tin scolder, but this obviously is not a preferred plan.

The applicant is at before U. S. application file (NO.10/773,647) in, pin is to no welding scheme, a kind of unleaded circuit is proposed, this circuit comprises that there is the printed circuit board (PCB) of guide rail (conductor track) on a surface, described circuit board surface is provided with the parts that have conducting strip (conductive pad), and described conducting strip contacts with described guide rail.These parts surfaces cover one deck foamed materials, are provided with on the foamed material by what a slice hard material constituted and clamp together plate, are used to compress foamed material so that described conducting strip is close to described guide rail.Described installation is fixed by screw and nut.The surface of whole described circuit or partial circuit wherein can cover by Embedding Material.

Be present in collision or movement response switch in clothing or the footwear, have this electronic circuit or module usually.Following United States Patent (USP) has provided strong example explanation:

Re37,220 5,692,324

6,238,056 5,649,755

6,017,128 5,3663780

5,732,486 5,285,586

5,704,706 and 5,019,438

Circuit or modular unit are welded on some place of clothing or shoes usually, in case these clothings or shoes are dropped and enter in every way the waste disposal point, these circuit or module will become the lead contamination source so.

Summary of the invention

For the applicant, can address the above problem effectively by the complete place to go used scolder of any welding.The further improvement of narrating previously to circuit in the prior art comprises hole, the port that passes sponge layer and clamp together device, thereby for element provides the space, and make that the radiator on the element can ventilation and heat.

Described element, for example other assembling element on resistance, electric capacity and the circuit board surface comprises conducting strip (conducting pad), under from described sponge layer or otherwise pressure, is connected with guide rail on the circuit board.Other element links to each other with lead, and described lead can be made into tip shape and have barb (being similar to fish hook).Described lead is exerted pressure, make described lead or to press close to described guide rail, thereby realize being electrically connected by described hole or the arrival of metallic plate port, and, described lead and described barb interlock safely, reduced the circuit board open circuit and the risk of the unnecessary impedance that brought by the wire-bonds place.Described lead and connector form sharp-pointed point and barb, and it can be pushed in the insulated wire, thereby realize connecting closely.

A kind of sheet/plate that clamps together, be used for clamping described sponge layer and the element that is connected with described guide rail, also can carry simultaneously a plurality of connection pins with barb, and described connection pin is pressed, pass described sponge layer and hole on the described circuit board, described circuit board can be printed circuit board (PCB) (PrintedCircuit Board, PCB), it also can be the circuit board of other type, described barb hooks a lower side of PCB/ circuit board, be used for preventing that described connection pin from coming off, also can accessory be fixed together simultaneously as fastener.Therefore, described PCB/ circuit board and described element are fixed together safely by described pressure and the described resilient sponge layer that clamps together plate.Describedly clamp together device/layer and sponge layer also can be combined into a part.

For the element that holds given shape needs the element of radiator with those, then can reduce foamed material insulating barrier or other elastic layer and clamp together plate, its purpose is:

A) provide certain recess space that it is consistent with the external shape of discrete component,

B) for described element provides limited accurate space,

C) allow automatic or robot assembling (robotic assembly), and

D) allow radiator to be exposed in the air.

By the device of similar clip or screw, make described element be clamped together the pressure fixing of plate and elastic foam material layer and be electrically connected on the described PCB/ circuit board by described.The groove of the described certain volume that provides for the element that radiator is housed is compared described element, should be enough little, and like this, described sponge layer could suitably secure the above element.

The applicant has designed a kind of crash response switch, and described switch combines with described PCB/ circuit board, executable operations reliably together, thus avoid the risk, the especially Qian pad that use any scolder or the welding of other toxic material to bring.

Described switch is made of the integral type compact spiral shape spring of a metal, has one to be the clip of one with described spring at an end of described spring, clamps the edge of described circuit board.Described clip can be clipped in the rail sections on the described circuit board, also can be clipped in insulated part.On described spring, an end opposite with described clip (in a preferred embodiment, in fact be meant whole spiral spring) be subjected to the pressure on the described switch easily and produce vibrations, like this, footloose that end of described spring the just guide rail on described circuit board moves, thereby along with input each time or vibrations come shut-off circuit.Simultaneously, described switch sealed it is moved freely, and can not be subjected to the influence of potting resin (potting resin) or any accessory structure.

Do not have the entire circuit of scolder can be subjected to the protection of conformal coating (conformal coating), shell or die sleeve (molded encasement), waterproof is not vulnerable to physical damage yet.If end product of the present invention finally loses use value, enter after the refuse landfill, do not have the risk that the chemical substance in solder compositions or the welding process pollutes for soil and water yet.

An alternative embodiment of the invention has also proposed a kind of electronic circuit, described electronic circuit comprises a PCB/ circuit board, a plurality of electronic components are sandwiched on the guide rail of described circuit board by a kind of plastics forming cladding system that is sealed to circuit board, or suitably are sandwiched on the guide rail of described circuit board by the described plate that clamps together.Do not use the described plate that clamps together in a kind of mode of described embodiment, but combine a temperature response plastic plate, described temperature response plastic plate is by vacuum seal around the described components and parts and on the position relative with described circuit board.Under any circumstance, the present invention can obtain good circuit or reliable dynamo-electric integrality under the prerequisite of not using welding.

Flow chart description the circuit of in automation process, being realized in conjunction with foregoing invention design.

Description of drawings

By following specific descriptions also in conjunction with the accompanying drawings, it is more clear that the present invention will become:

Fig. 1 is the simple three-dimensional exploded view of unleaded no welding circuit, and it has a surface mount device, and this element is kept with guide rail by an elasticity of compression sponge layer and is connected;

Fig. 1 a is the circuit stereogram that is assembled according to Fig. 1, and it has a harness fastener, and wherein the decomposing state of bolt and nut as shown in it;

Fig. 2 is a kind of three-dimensional exploded view of improved unleaded no welding circuit, wherein, clamps together sheet and comprises that barb connects pin;

Fig. 2 a is a kind of reversed isometric view of shaped resilient layer, and it is provided with groove and bonding zone, and this groove is used to hold electronic component, and this bonding zone is used for making simultaneously electronic component to keep suitable position with its surface in groove;

Fig. 2 b is the exploded view of the combination among Fig. 2, but the two-sided sponge layer that all is provided with of circuit board among Fig. 2 a, two supporting brackets are located at the upper and lower sides of circuit board respectively;

Three-dimensional exploded view shown in Fig. 2 c is similar to Fig. 2, and it has two stackable circuit boards of single face;

The end view of the circuit that shown in Figure 3 is is assembled according to Fig. 2 wherein, has section in the subregion, to express internal circuit configuration;

Fig. 3 a is the enlarged drawing of border circular areas among Fig. 3;

Fig. 3 b is the enlarged drawing of B part among Fig. 3, and it comprises a surface mount device and a radiator;

View profile shown in Fig. 3 c, part is a sectional view, has described a kind of interchangeable sheet and complete pin that is connected of clamping together;

Shown in Fig. 4 a is the end view of circuit board, battery and switch combination;

The stereogram of Fig. 4 b for making up shown in Fig. 4 a;

Shown in Figure 5 is the vertical view of elastic switch and circuit board, and this circuit board has an integrated circuit and a guide rail;

Fig. 6 is Fig. 4, circuit board shown in Figure 5 and the upward view of elastic switch, and wherein, part guide rails as seen;

Fig. 7 is the top plan view exploded view of printed circuit board (PCB), and it comprises battery and elastic switch shown in Fig. 4,5,6, and has capping;

Fig. 8 is the left view after the printed circuit board (PCB) assembling among Fig. 7, and its part is a profile, wherein, is coated with the resin Embedding Material on the printed circuit board (PCB), is added with capping on the snap switch;

Fig. 9 is the three-dimensional cross-section diagram of printed circuit board (PCB), and wherein, the barb that has the lead on the element of lead is connected with guide rail;

Fig. 9 a is the profile of element assembling back 9B-9B along the line among Fig. 9;

The end view of Figure 10 conductor jointer barb part, this barb part links together the lead of two mutual insulatings;

Shown in Figure 10 a is the profile of conductor jointer among Figure 10, and at the node place of two leads, it embeds with a contractile sleeve;

Profile shown in Figure 10 b is a strand insulated conductor, links together with the conductor jointer shown in Figure 10;

Cutaway view shown in Figure 10 c is improved conductor jointer, and it has the side hook, and a pair of insulated conductor is connected;

Figure 10 d-10g is the end view that a series of conductor jointers are replaced form, and it is provided with jagged sharp-pointed composition surface;

Figure 11 is for having the multiplex conductor connector of barb or the vertical view of connector;

Figure 12 is the stereogram of light-emitting diode, and it has sharp-pointed lead riser, and barb is arranged on the lead riser;

Figure 12 a is transistorized end view, and this transistor has sharp-pointed lead riser, and barb is arranged on the lead riser;

Figure 12 b, 12c, 12d, 12e, 12f are respectively the stereogram of integrated circuit, switch, potentiometer, frequency converter, motor, and the above parts all has the sharp-pointed lead riser that has barb;

Figure 13 is the end view of an electronic component, and it has two sharp-pointed lead risers that have barb;

Figure 14 is the zoomed-in view that has the sharp-pointed lead riser of barb, the lead riser that this lead riser can be as shown in Figure 13;

Figure 15 is the stereogram of the used printed circuit board (PCB) of the present invention, and it can hold two integrated circuits and other electron component;

Figure 16 is a kind of stereogram of printed circuit, and according to the present invention, in this circuit, a kind of replacement form of elastomeric material can be used to apply contact pressure;

Figure 17 is the horizontal view profile of a kind of electronic circuit or module, and this circuit or module have been utilized circuit board and the elastomeric material shown in Figure 15,16, and combines the plate that clamps together shown in Figure 2;

Figure 18 is the horizontal view profile of a kind of electronic circuit or module, and this circuit or module and Figure 17 are similar, but it does not clamp together plate;

Figure 19,20 is the flow chart of method provided by the present invention and technology;

Figure 21 is the section exploded view of a circuit structure, and wherein, helical spring contacts elongated hole with guide rail on the circuit board and spring on the elastic pieces of foam and links together.

Embodiment

Referring to figs. 1 to Fig. 3 c, wherein, the schematic diagram in the electric loop that Fig. 1 is a simplification that comprises a circuit or module that is noted as M in the present invention, described electric loop also comprises a PCB circuit board 10 with guide rail 12.Guide rail 12 comprises conducting strip 14, and conducting strip 14 is cut off face (conductingterminal pads) 16 with conduction and contacted the surface mount device 15 that forms part, and surface mount device 15 can be resistance, capacitor or integrated circuit.

Have elastic foam insulating barrier 20 above PCB circuit board 10, after it was mounted, elastic foam insulating barrier 20 was by the compression of the hard clamping plate 22 at PCB circuit board 10 tops, and wherein hard clamping plate 22 can be by such as Masonite

Or hard, nonconducting synthetic material of glass fibre and so on are made.Clamping plate 22 are fixed tightly on the PCB circuit board 10 by securing member, and securing member can be that the barb shown in the bolt and nut shown in Fig. 2, Fig. 2, Fig. 2 c, Fig. 3-3c connects pin (preferably) or other securing members hereinafter described.These securing members have been fixed the relative position of clamping plate and circuit board, and allow all elements mechanically with on the electricity all be connected with guide rail.

Fluid insulation 20 preferably has some favorably situated grooves, and the groove of a part or the zone that the quilt of downside is reduced in foam spacer 30 as shown in Figure 2 can avoid element to bear too much pressure.These grooves also can be used for the position of correcting element so that they are installed in tram on the PCB circuit board.As shown in Figure 1a, the guide rail 12 among electric loop or the module M also had a contact or terminal 13 to form an electric access port that inserts the loop after each layer installed by above-mentioned method among Fig. 1.

For ease of understanding, Fig. 1 guide rail 12 of an element 15 and two printings that only drawn.In reality realized, shown in Fig. 1 to Fig. 3 c, circuit or module M may be taken by the appropriate members in a lot of circuit, and all elements all are fixed on the meaning of machinery and electricity.

Fig. 2 is similar to Fig. 1 but the three-dimensional exploded view that comprised the stacked loop of more features, and as shown in the figure, PCB circuit board 24 has comprised the surface mount device 26 and the second surface assembly element 29 that contain additional heat sink 28.Sponge layer 30 comprises the hole 32 that can allow fin 28 pass through, and also comprises a groove 31 that can hold next extra surface mount device 29.Clamping plate 34 also comprise a hole 36 corresponding to sponge layer hole 32.

As shown in Figure 2, clamping plate 34 also comprise a lot of pre-install, connection pins 38 with crotch or barb 40 down, be used for when circuit is assembled, punch sponge layer 30 and PCB circuit board or the hole by sponge layer 30 and PCB circuit board 24, and barb can hook the bottom of PCB circuit board, to realize the tight connection of each layer.

Fig. 2 a is the stereogram after sponge layer 20 counter-rotating among Fig. 1, and sponge layer 20 has the groove 19 of a receiving surface assembly element 15, and wherein, surface mount device 15 also has one and is used for the contact 16a that electrically contacts with Fig. 1 conducting strip 14.Having the zone 17 that connects adhesion substance is fixed to

surface mount device

15 and 15a on the sponge layer 20.Therefore surface mount device 15a may not need have a corresponding groove because specific surface assembly element 15 is thin on sponge layer 20.

Fig. 2 b is the exploded view of a two-sided PCB/ circuit board 25, as shown in the figure, PCB/ circuit board 25 all has the clamping plate 33 of surface mount device 27 and elastic foam material layer 37 and top and bottom on two surfaces up and down, surface mount device 27 joins with guide rail 35U and 35L respectively.Tightening up of this device can also be adopted and the method described in Fig. 2.

Fig. 2 c is one and is similar to Fig. 2 but has comprised the PCB/ circuit board 24 of two single faces and the exploded perspective view of 19 device, as shown in the figure, circuit board 19 also can be used as clamping plate, circuit board 24 is wherein nested by two sponge layers 30, and has a surface mount device 26 that comprises fin/device 28.The passage that sponge layer 30 and clamping plate 34 on circuit board 24 tops all leave fin/device 28.This execution mode has shown that the present invention is applicable to heat radiation circuit (heat radiating circuits).

Fig. 3 is the end view after the device among Fig. 2 is installed, and in order to show its internal structure, has adopted the cut-away section view.Can see that from the cut-away section view surface mount device 26 and fin 28 and second surface assembly element 29 thereof are wrapped the groove 31 that is contained in the sponge layer 30 closely.As shown in the figure, connect pin 38 and passed sponge layer 30 and PCB/ circuit board 24, the circuit band 12 of printing adopts the fragment map form to show.

Fig. 3 a is the enlarged drawing of circular portion A among Fig. 3, and as shown in the figure, the end and the barb 40 that connect pin 38 effectively form bending in the bottom of PCB circuit board, and the elasticity that a series of such connection pins and barb have overcome sponge layer is fixed circuit.

Fig. 3 b is the enlarged drawing of circular portion B among Fig. 3, as shown in the figure, surface-assembled unit 26 is arranged among the figure, fin 28, sponge layer 30, clamping plate 34 and PCB/ circuit board 24 also have guide rail 12 on the PCB/ circuit board 24, surface-assembled

conducting strip

44 and 46 and guide rail 12 paste mutually between surface composition element 26 and guide rail, to form and do not have welding and be electrically connected.

Fig. 3 c is the view profile of the alternative form 34a of clamping plate 34, as shown in the figure, has the pin of connection 38a on the clamping plate 34a.In the injection moulding course of processing, clamping plate 34a can with the processed shaping that is connected pin 38a integral body, certainly, clamping plate 34a be connected pin 38a and also can be shaped with machining when the deep processing.

With reference to figure 4a to Fig. 6, wherein, Fig. 4 is the end view with PCB45 that snap switch 46 is installed, and switch 46 comprises the jaw mechanism 50 of wind spring 49 and an integral body, and described jaw mechanism 50 under normal circumstances vises circuit board 45 and allows wind spring 49 can not touch circuit band 54.

Fig. 4 b is the three-dimensional view that the circuit board 45 of snap switch 46 is installed, described circuit board comprises the jaw mechanism 50 of wind spring 49 and an integral body, described jaw mechanism 50 comes the electrically contacting of circuit band 54 at the position of control spring switch 46 and closed and disconnected and circuit board 45 tops by the raceway groove on the circuit board 45 52, with Fig. 6 in conducting strip 48 form and be electrically connected.Whole jaw mechanism 50 electrically contacts for the conducting strip 48 at the low end of circuit board 45 (figure six) provides on the other hand on the one hand for snap switch 46 provides machinery support on the PCB/ circuit board.In Fig. 4 a, the far-end of wind spring 49 and the guide rail on circuit board 45 54 contact, as shown in Figure 4, when wind spring 49 does not contact guide rail 54, described snap switch 46 is normally opened, and can react to suffered vibrations with the form of vibrations to guide rail 54, this just provides a kind of closing of circuit of accurate timing.A special application of this snap switch is the battery powered LED flashing light that is open on the clothing, such as footwear.Compare with previous similar technology, snap switch 46 is without any need for the connection of welding compound.

Fig. 5 is the plane graph with PCB circuit board 45 of snap switch 46, among the figure, snap switch 46 is in static open position, do not contact guide rail 54, as shown in the figure, a circular batteries partly is positioned at dotted line, and link to each other with the PCB/ circuit board 45 of low end, among the figure, integrated circuit 58 is simply delineated upside at circuit board 45 by solid line, and links to each other with snap switch by the guide rail 12 of printing.Loop 58 can be poured mixture and protect, and snap switch is by protecting as shown in Fig. 7 and Fig. 8.

Fig. 6 is the bottom view of PCB/ circuit board 46, as shown in the figure, has comprised the jaw mechanism 50 of battery 56 and snap switch 46, and described jaw mechanism 50 vises conducting strip 48, and conducting strip 48 links to each other by guide rail 51 with battery 56.

Fig. 7 is the vertical view of printed circuit board (PCB) 60, and as shown in the figure, described circuit board 60 comprises the big envelope 70 of an integrated circuit 59, snap switch 66 and snap switch.PCB/ circuit board 60 has supported to have comprised the device 62 of a large amount of guide rails.A guide rail of device 62 extends to the conducting strip 64 that is close to snap switch 66 1 ends, and the other end of snap switch 66 is made into as the shape of above-mentioned jaw mechanism so that can be in an end of guide rail or hanging down being connected with guide rail of an end at PCB/ circuit board 60.The device 62 that contains a large amount of guide rails is connected to conducting strip 68, and is connected on the element that do not draw among electric wire or other figure, such as LED by jaw mechanism or other following jockey.Foam pad 61 and clamping plate 63 are listed one by one on the next door of circuit board 60.

Fig. 8 is the left view of the cut-away section of PCB/ circuit board 60.Different elements comprises surface mount device, can be placed to the surface of PCB/ circuit board 60, and fixing by elastic foam material layer 61 and clamping plate 63.Although having, moves and vibrations by PCB/ circuit board 60, all electrical connection circuit are fixed, PCB/ circuit board 60, the element on it, sponge layer 61 and clamping plate 63 are absorbed in 76 li of casting resins, and have big envelope 70 to cover snap switches 66 in case during fabrication casting resin 76 can run into snap switch 66.Described big envelope 70 can be a plastics box that a top, both sides, two ends are arranged, and it is configured to a snap over mechanism at limit 60A and 60B, so that allow snap switch 66 work freely, and makes it to isolate with casting resin 76.

In this view, integrated circuit 59, additional

surfaces assembly element

72 and 74 are fixed on the circuit board 60 by sponge layer 61 and clamping plate 63.Big envelope 70 is in the periphery of snap switch 66.Entire circuit plate 60 all is loaded in the potting compound except snap switch 66 and big envelope 70 thereof.

Fig. 9 is the part three-dimensional view of circuit board 80, and described circuit board 80 comprises guide rail 82, and described guide rail 82 has the element of a band lead-in wire, (resistance, electric capacity or wind spring), and transistor or half conduit 84 are decomposed out from circuit board 80.Can be resistance the slightly pointed or barb of electronic component 84

draw end

84A and 84B, draw end 84A its low side in the process of an accurate corresponding hole that inserts PCB/ circuit board 80 and electrically contact with guide rail 82 formation.

Fig. 9 a is the cutaway view of circuit board 80 9a-9a along the line, and Fig. 9 a shows sponge layer and clamps together plate.Lead 84A is to be electrically connected with the guide rail 83 that is positioned at circuit board 80 opposite faces.Thereby the barb on the lead 84a can clamp together the guide rail 82 and 83 of circuit board 80 tops and lower surface; If shown in Fig. 9 a, then can clamp together the wall of hole.The applicant finds that this unleaded solderless connects in succession better connection can be arranged, and according to above-mentioned fastening means, although vibrations and bump are being arranged, but still can obtain good connection in using usually.Element 84 is usually located at the one side, described element to draw lead crooked and covered by conformal coating.

Figure 10 is the connector 86 part end views with barb, and the two ends of lead all are sharpened and have barb, but barb is only at an edge, as

insulated wire

88 and 90 be connected.

Shown in Figure 10 a, connector lead 86 is positioned between

lead

88,90 and its insulating barrier so that barb can be connected with 90 metal with lead 88, thereby has guaranteed the electrical connectivity between the lead 88 and 90.Like this, lead is no matter be sub-thread or stranded all available.

Shown in Figure 10 b, when two leads link together, its insulating end compress slightly contact discharges then, just obtains unleaded seam.A pair of or two insulating tapes or fusion seal or shrinkage plastic bushing (shrink-fit plastic sleeve) can permanent involution junctions.

Figure 10 c is the cutaway view that is similar to Figure 10 b, and different is lead 86 all has barb along the both sides of lead, and is positioned at the central part of twisted wire 88 and 90.For clearly statement, the barb among Figure 10 c amplifies.

Figure 10 d, Figure 10 e, Figure 10 f, Figure 10 g are the schematic diagrames that is similar to other wiring connectors of connector 86.Connector 86a has the reverse acting spiral barb among Figure 10 d; Two ends are the relative barb of direction among Figure 10 e, and reverse fish hook barb has been shown among Figure 10 f, are sharp plate-like barb among Figure 10 g.But every kind of design all can effectively provide lasting Low ESR unjointed variable connection.

Figure 11 is the vertical view that Y type three-dimensional connects lead 92, and lead 92 all has barb in three ends 93,94,96, barb in a side of each end as among Figure 10.Lead 92 can connect three or more leads or the combination that connects of lead as shown in Figure 10, and/or connects one or more PCB/ circuit boards as shown in Figure 9.

Figure 12 is the stereogram of LED98, and LED98 has lead 100,102, and the two all has the sharp end of band barb, and a side of each lead all has barb.Lead 100 inserts between the insulating barrier and lead of insulated wire 104.Lead 102 also can insert second lead or PCB/ circuit board, connects as shown in Figure 9.Thereby do not obtain to connect effectively and reliably by welding or crimping (crimping).They can separate arbitrarily and again in conjunction with and still can obtain good electrical conductivity and long-life.

Figure 12 a has the transistorized end view of the sharp-pointed lead of barb.

Figure 12 b, Figure 12 c Figure 12 d, Figure 12 e, Figure 12 f are respectively integrated circuits 99, switch 101, potentiometer 103, transducer 105, the stereogram of motor 107, they all have the sharp-pointed lead that contains barb.

The vertical view of Figure 13 electronic component 106, electronic component can be resistance or electric capacity, has from extended lead 108 of opposite end and 110. leads 108 and 110 to be distributed with barb along both sides.

Figure 14 is the view that an end of

lead

108 or 110 has amplified, and the conductor wire end of two barbs is shown.This pair of barb lead be to the guide rail of printed circuit, the conducting strip that forms on the part guide rails to the PCB/ circuit board and the metal throuth hole on the circuit board is particularly useful.

Figure 15 to 18 has provided other embodiment of the present invention.Figure 15 is a more complicated printed circuit board (PCB) 120, and it has conductive surface 122, on it etching plurality of guides 124, the conducting strip 126 of plural number is used for carrying out the electrical connection with integrated circuit (do not show among Figure 15, but be labeled as 128 and 130 in Figure 16).Conducting strip 132 is positioned to receive

resolution element

138 and 139 among Figure 15, and

element

138 and 139 also illustrates in Figure 16-Figure 18.Certainly the layout of each printed circuit board (PCB) can be different.Be that with the something in common of previous execution mode electricity has only used at the printed circuit board (PCB) shown in Figure 16 to 18 120, conductive surface 122, flexible insulation lid 140 also has the compression cover (compression cover) 142. shown in Figure 17

Flexible insulation lid 140 is made by thin plate, and it has electrical insulating property, the preferably clear material, and polyvinyl chloride for example can be according to the layout of element by compression molding or vacuum forming, and each element inserts on the printed circuit board (PCB) 120 position separately respectively.The 140 preferred vacuum formings of flexible insulation lid, the appropriate location that is positioned over model is so that the requirement of its shape coincident circuit plate when assembling.Thereafter flexible thin 140 is inverted packing elements and plays place holder, each all in appropriate position so that circuit board can be placed on it, each element all be arrangement automatically in place.If desired, when assembling can in the cavity of thin plate 140 or bag, add adhesive with holding element in suitable cavity.

Compression cover 142 only shown in Figure 17 props up the most significant end of thin plate 140, uses securing member, such as available end the rivet of barb is arranged, and makes its suitably fastened lives.The specific embodiment of the invention is particularly suitable for automated production, and element that will assemble or integrated circuit are placed in the cavity suitable in the flexible thin 140, then printed circuit board (PCB) are placed on the top.In this assembly process, it is inverted comparing with Figure 17.

If except thin plate 140, also need higher compaction degree, can between flexible thin 140 and compression cover 142, place sponge layer, such as the layer 30. among Fig. 1 to Fig. 3

As shown in figure 18, assembly does not just have lid 142 among Figure 17, the edge of thin plate 140 can be close to PCB/ circuit board 120 sealing, and extract the air between PCB/ circuit board 120 and the thin plate 140 and form vacuum with guarantee to cover 140 and inner member at correct position.Flexible thin 140 can be drawn among the hole H of circuit board 120 touch-safe that makes to compress between electronic component and the guide rail and firmly by vacuum.

Improved no welding circuit or module are according to Figure 19 and flow chart production shown in Figure 20.

The formal specification that Figure 21 decomposes with section simple conduction helical spring can be used as the sponge layer that stacks in the microcircuit and the effective electric connector between the circuit board.Each spring 150 through hole on the elastic foam pad 153 separately extends so that the guide rail 154 on the plate 152 forms reliable internal electrical with guide rail 155 on the plate 151 is

connected.Plate

151 and 152 back or outsidely when assembling, can make clamping plate.Because unleaded solderless use,

circuit board

151 and 152 is used Fig. 2, Fig. 3. Fig. 3 a.It is fastening that securing member shown in Fig. 3 b keeps, and

circuit board

151 and 152 oneself can be used as chucking surface, do not have the outside that circuit exposes except necessity to connect.But encapsulation protective circuit plate is avoided environmental pollution.

Here, term " electronic circuit " can be a lot of forms, comprises internal connection line, guide rail, and element, electric mechanical can be on demand as electrically connecting to realize useful function.Circuit can also comprise outside connection, internal cell and protective cover.

Here, the meaning that term " module " also can TYP.

Above disclosed only is better embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.

Claims

1, a kind of electronic circuit comprises:

A) circuit board of guide rail is arranged;

B) at least one has the electronic component of conduction contacts, and it covers on the part of described guide rail;

C) cover described circuit board and electronic component and make conduction contacts and device that guide rail is electrically connected.

2, electronic circuit as claimed in claim 1, it is characterized in that: the device of described covering board and electronic component comprises elastomeric layer and is fastened to the device that clamps together of printed circuit board (PCB), describedly clamp together device and described elastic layer is pressed into element in the guide rail, thus holding circuit electrically and mechanical complete.

3, electronic circuit as claimed in claim 1, it is characterized in that: described at least one element has the lead that at least one contains barb, be used for realizing electrically contacting and barb-like Mechanical Contact, be electrically connected and mechanical connection thereby between described element and described guide rail, provide with a minimum described guide rail.

4, electronic circuit as claimed in claim 2 is characterized in that: described elastomeric layer is a foams plastic material.

5, electronic circuit as claimed in claim 3, it is characterized in that: insulated electric conductors is connected in described circuit, and the connection that has at least that is connected to described circuit is to form between the lead of insulating barrier and at least one described insulated conductor by barb-like connection electric wire.

6, electronic circuit as claimed in claim 1, it is characterized in that: also comprise a switch, described switch comprises a spring, one end of described spring is the jaw mechanism that is sandwiched in one side of circuit board, its other end is a free end, is used to respond mechanical oscillation so that form electrically contacting of being interrupted with one of described guide rail.

7, electronic circuit as claimed in claim 1 is characterized in that: describedly clamp together the plastics vacuum panels that device comprises that its shape and described circuit element are consistent, make described element press the guide rail of described circuit board.

8, electronic circuit as claimed in claim 2 is characterized in that: described elastic layer comprises at least one and the corresponding groove of described electronic component shape.

9, electronic circuit as claimed in claim 2 is characterized in that: the described device that clamps together comprises a plurality of pins that have barb, and the described pin that has barb passes elastic layer and circuit board, and the described pin that has barb is mechanically fixed to described circuit board.

10, electronic circuit as claimed in claim 1, it is characterized in that: comprise the insulated electro interconnecting lead in the described circuit, described electric insulatedly in circuit, interconnect, in addition, additional insulated electro interconnecting lead is connected with described circuit, and each insulated electro interconnecting lead has exposed lead in its insulating cover, and described each insulated electro interconnecting lead has a line junction surface, extend in the insulating cover of lead at described line junction surface, to realize the electrical interconnection between insulated conductor.

11, electronic circuit as claimed in claim 10 is characterized in that: described line junction surface is provided with barb.

12, electronic circuit as claimed in claim 11 is characterized in that: the barb on the described line junction surface is used for prevention and comes off from joint.

13, electronic circuit as claimed in claim 11 is characterized in that: an end at described line junction surface is provided with barb, is used for easily inserting the lead between the insulating cover of every lead and keeps barb contact between the lead.

14, electronic circuit as claimed in claim 11 is characterized in that: comprise end-to-end butt joint insulated conductor, described end-to-end butt joint insulated conductor contains the lead that has barb that is useful between insertion insulating material and the lead at each end.

15, electronic circuit as claimed in claim 11 is characterized in that: described barb lead is a Y shape, is used to connect a plurality of insulated conductors.

16, electronic circuit as claimed in claim 2, it is characterized in that: comprise that also at least one has the electronic component of barb lead, at least one is electrically connected with at least one formation in the described guide rail in the described electronic original part, electrically connects to form between described electronic component and described guide rail.

17, electronic circuit as claimed in claim 2, it is characterized in that: also comprise a switch, described switch comprises a wind spring, one end of described wind spring is the jaw mechanism that is sandwiched in one side of circuit board, its other end is a free end, is used to respond mechanical oscillation so that form electrically contacting of being interrupted with one of described guide rail.

18, electronic circuit as claimed in claim 2 is characterized in that: described electronic component comprises at least one heat abstractor, and described device and the elastomeric layer of clamping together is provided with the ventilating opening that ventilates into heat abstractor.

19, a kind of electronic circuit comprises:

A) has the circuit board of guide rail;

B) electronic component, wherein at least some are useful on the conducting strip that is electrically connected with described guide rail;

C) elastic insulated sponge layer covers described circuit board and electronic component; And

D) rigidity clamps together device, cover described elastic layer and be fastened to described circuit board, thereby elastic layer makes electronic component be close to guide rail.

20, electronic circuit as claimed in claim 19, it is characterized in that: have an electronic component that is connected in described circuit board at least, it comprises sharp-pointed barb lead, is used for electrically connecting and mechanical engagement with described guide rail, thus the electric connection of realization and guide rail.

21, electronic circuit as claimed in claim 19 is characterized in that: insulated conductor is connected with described circuit, and at least some are to connect lead with sharp-pointed barb to form between the insulating barrier of insulated conductor and plain conductor in the described connection.

22, electronic circuit as claimed in claim 19 is characterized in that: the elastic foam insulating material comprises the corresponding groove of shape of at least one and described electronic component.

23, electronic circuit as claimed in claim 19 is characterized in that: at least one electronic component comprises heat abstractor, described foamed insulation material layer and clamp together sheet and all comprise the otch that is used to heat abstractor to ventilate.

24, electronic circuit as claimed in claim 19 is characterized in that: the part of described circuit board is included in the closable snap switch on one of described guide rail, the casting resin that is used to cover the lid of described snap switch and is used to cover the circuit except that snap switch.

25, electronic circuit as claimed in claim 19 is characterized in that: described circuit board comprises at least one metal port; The connection lead that has barb electrically connects and mechanical connection thereby produce with the metal port of described circuit board.

26. a kind of electronic circuit as claimed in claim 19 is characterized in that: comprise the connection pin that is provided with barb that is fixed to described clamping plate, described connection pin passes elastic layer and electronic circuit, is fixed on a circuit board side relative with elastic layer.

27. a kind of electronic circuit as claimed in claim 19 is characterized in that: the described connection pin that has barb passes described electronic circuit, and is fixed in the opposition side of circuit board with respect to described elastic layer.

28. a kind of electronic circuit as claimed in claim 19 is characterized in that: at least one described element is LED, and the lead of described LED is provided with sharp-pointed barb.

29. insulated electric conductors connector, wherein, insulated electric conductors is end-to-end link, and described connection comprises conductive connecting device, sharp-pointed and the wherein at least one end in described connector two ends is provided with barb, can for good and all be electrically connected securely and mechanical connection between insulated electric conductors.

30. insulated electric conductors connector as claimed in claim 29, it is characterized in that: described single insulated conductor can be connected with two or many insulated conductors, connection between described lead comprises Y shape connected mode, each branch road of Y shape connected mode all is sharp-pointed, can insert between the insulator and conductor of other leads, and be provided with barb to be connected to the conductor of lead.

31. insulated electric conductors electric wire connecting junction as claimed in claim 29 is characterized in that: described connector comprises the barb that is positioned at the conductor two ends, to be connected with conductor in the lead.

32. an electrical connection device that is used for insulated conductor comprises: comprise the lead of central area and two end regions, the end regions of at least one side of lead is provided with barb, and the barb of end regions points to the central area that electrically connects.

33. an electronic circuit comprises:

A) be provided with the circuit board of guide rail;

B) be provided with the electronic component of the conducting strip that is connected with guide rail;

C) be positioned at elastic thin layer material layer on the described circuit board, make and keep mechanical connection and electric connection between the portions of electronics element and guide rail at least according to the described element of covering of described component shape design.

34. electronic circuit as claimed in claim 33 is characterized in that: described elastic thin layer material layer is for vacuum, and the top that is positioned at circuit board and element to be to limit the circuit board of self-supporting.

35. a circuit comprises:

A) be provided with the circuit board of guide rail;

B) at least one has the electronic component of conducting strip, and described conducting strip is set up with described guide rail and links to each other;

C) described conducting strip is pressed in the device of described guide rail.

36. an electronic circuit comprises:

A) be provided with the circuit board of guide rail;

B) at least one is provided with the electronic component of conducting strip, and described conducting strip is set up with described guide rail and links to each other;

C) described conducting strip is pressed in the device of described guide rail.