CN2459749Y - Improved structure for solid relay - Google Patents

Abstract

The utility model belongs to the technical field of electrical component design, comprising a circuit substrate, a plurality of throttle elements, a mounting hole is arranged at arrangement position of each throttle elements, a plurality of power ends and control terminals are longitudinally or transversely arranged on the circuit substrate, a conductor wafer is connected between each terminal and a load pin, and between a power supply interface of each throttle element and a load pin, the lower part of the circuit substrate is combined with an insulating plate, the bottom surface of the insulating plate is attached to a radiating fin, and each mounting hole point is provided with a through port which is in the same shape. The back side of each throttle element on the circuit substrate is attached to the radiating fin, and the effect of large-area radiation can be achieved.

Description

The structure-improved of solid-state relay

The utility model belongs to the electric elements design field, particularly a kind ofly is used for that the contactless electrical load is opened, disconnected control, and longitudinal and transverse twocouese distribution of tool and the solid-state relay structure of being convenient to the active member heat radiation.

Solid-state relay is widely used in electrical loads or electric according in the electrical control occasion of showing such as Industry Control, low-voltage distribution control, particularly its be different from traditional relay negative relay tip, nonarcingly open, disconnected and low-voltage signal control high-voltage power opens, disconnected characteristic, then extremely be fit to be used in AC and DC duplicate supply control system and use.Yet, typical solid-state relay then as shown in Figures 7 and 8, wherein, circuit board B among this relay A is located at the top, and active member C, as silicon control rectifier (SCR) then is to fit in base D, be connected on the circuit board B direct pin C1 is unsettled again, and circuit board B is linked to a pair of dc terminal X and power supply terminal Y respectively with printed wire again, be used for linking dc control signal and controlled high voltage interchange or direct power supply respectively, control the purpose that high voltage exchanges or direct current power opens, break and move to reach by the dc low-voltage control signal.

In using and using, there is following shortcoming in traditional solid-state relay structure:

(1) active member C only depends on base D heat radiation, and base then can produce the problem that is difficult for heat radiation if fit on metope or the control board, causes active member C that the shortcoming of overheated damage is arranged.

(2) the unsettled circuit board B that is connected in of the pin C1 of active member C, the carelessness during easily because of assembling causes the too small easy electric leakage of pin and base D gap.

(3) binding of active member C pin C1 and circuit board B is unsettled welding, and the pin C1 of the active member C among the circuit board B and the binding between power supply terminal Y only depend on the long and narrow printed wire of circuit board B, its circuit total impedance is bigger, easily make bigger electric current will flow through elongated pin C1 and the printed circuit of circuit board B, will make the high heat of pin C1 and circuit board B generation and the contact carbonization between pin C1 and circuit board B is damaged.

(4) the configuration direction of this dc terminal X and power supply terminal Y, be subject to circuit board B and active member C and present in the same way configuration, significantly do not distinguish and the interval, make the staff therefore produce control signal and power supply wiring mistake, the problem of burning relay A easily.

(5) dc terminal X and power supply terminal Y can't be when relay A make the demand of vertical or horizontal installation, the load and the power end that can reach among the power supply terminal Y can do vertically to reach horizontal hard wire binding, as power circuit last, loaded line down or power circuit under a left side, the state of loaded line on the right side, the bending that then must make this power circuit and loaded line must make 90 degree links, and power supply or loaded line belong to the thicker lead in line footpath, except the difficulty that increases the distribution construction, on line maintenance, also can cause great inconvenience for later maintenance personal.

The purpose of this utility model is for overcoming the weak point of prior art, a kind of structure-improved of solid-state relay is provided, mainly making its each thyristor element can obtain big area of dissipation, and be convenient to heat radiation; And the pin that can make this thyristor element not can and fin between the electric leakage gap is arranged, can guarantee the safe in utilization of integral member; The conductor piece that has lower impedance between this lock fluid element and power terminal that power supply and load are connected is linked, the bigger electric current of tolerable by and can not make the solder joint carbonization of thyristor element pin and circuit substrate; Be vertical or horizontal configuration between the power terminal that further can make this connection power supply and load and the control terminal that is connected the DC control signal, can be obviously distinguished, avoid the situation of wiring error to take place by its configuration direction; In addition, this connects the power terminal of power supply and load, no matter when the vertical or horizontal configuration of solid-state relay, all can reach from top to bottom or by a left side right hard wire construct, need not make power supply or loaded line bending construction, and be convenient to the distribution constructing operation of circuit.

The present invention proposes a kind of structure-improved of solid-state relay, include a circuit substrate, have some thyristor elements as the path between controlled source and load or the control of opening circuit, and in each thyristor component placement position, then cutter is established with an allocation mouth, so that the penetrable circuit substrate in heat radiation position at the thyristor element back side.And the vertical or horizontal direction of circuit substrate is arranged with several power ends and control terminal, be provided with linking control power supply and controlled source, the controlled load circuit, and the power interface of this power terminal and thyristor element all and link respectively between the load pin with a conductor piece, for bigger current flowing and make things convenient for power terminal and the distribution of control terminal links, and the circuit substrate below then is combined with an insulation board, its bottom surface fits on the fin, and in the allocation mouth position of corresponding circuit substrate, then be provided with the mouth of wearing of same shape, so that each the thyristor element back side on the circuit substrate fitted on the surface on the fin, and the heat that the lock fluid element produces is dispelled the heat via this fin.

Thyristor element on this circuit substrate can be the silicon control rectifier, also can be two-way exchange and triggers three polar bodys formation.

This conductor piece can be " L " shape.

This power terminal can be vertical 90 configuration relations of spending with control terminal.

Can be provided with a housing on this circuit substrate and the insulation board and be covered sealing.

These housing two ends can be respectively equipped with some handle holes and wiring hole, for attended operation and the power circuit and the loaded line terminal insertion binding of power terminal.

Can be provided with a groove on this housing is convexly set in the outside for control terminal and is provided with the control circuit attended operation.

Can be filled with explosion-proof medium between this circuit substrate and housing.

The periphery of said fin can be provided with the plurality of fixed hole for fixing.

The structure-improved main feature of the utility model solid-state relay is, include a circuit substrate, have some thyristor elements as the path between controlled source and load or the control of opening circuit, and in each thyristor component placement position, then cutter is established with allocation mouth, so that the penetrable circuit substrate in heat radiation position at the thyristor element back side.And the vertical or horizontal direction of circuit substrate is arranged with several power ends and control terminal, be provided with linking control power supply and controlled source, load, and by the power supply of this power terminal and thyristor element, load end links respectively with conductor piece, for bigger current flowing and make things convenient for power terminal and control terminal vertical or laterally distribution link, and the circuit substrate below then is combined with an insulation board, its bottom surface fits on the fin, and in the allocation mouth position of corresponding circuit substrate, then be provided with the mouth of wearing of same shape, so that each the thyristor element back side on the circuit substrate fitted on the fin, and then form large-area radiating effect.

Creativeness of the present utility model, be to be to the simplest and the most direct structure and to be convenient to the mode that the workmen discerns distribution, reach and make solid-state relay promote radiating efficiency, make things convenient for effects such as distribution construction and identification distribution, have an industrial utilization for Industry Control and distribution control industry are real.

Brief Description Of Drawings:

Fig. 1 is a three-dimensional appearance structure chart of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 fits in the end view of the state of fin for the back side that shows thyristor element of the present utility model.

Fig. 4 pastes another preferred embodiment figure that fills with the configuration state of explosion-proof medium for of the present utility model being shown between circuit substrate and housing.

Fig. 5 is an application illustration of the present utility model.

Fig. 6 is an Another Application illustration of the present utility model.

Fig. 7 is the structural representation of conventional solid-state relay.

Fig. 8 is the unsettled connection status end view of active member of the demonstration conventional solid-state relay of Fig. 7.

Comprehensive above-mentioned each figure describes preferred embodiment of the present utility model in detail.

As Fig. 1, Fig. 2 and shown in Figure 3, solid-state relay 100 of the present utility model includes a circuit substrate 10 at least, is the circuit of control power supply and load contactless path (ON) or open circuit (OFF), the non-category of the present utility model of its detailed circuit structure is so will not describe in detail.This circuit substrate 10 has several thyristor elements 11, this lock fluid element 11 triggers three polar bodys elements such as (TRIAC) by silicon control rectifier (SCR) or two-way exchange and is constituted, 112 of its power pin 111 and load pins link respectively with a conductor piece 20, it constitutes for the low conductor of impedance, and shape is regardless of, at the utility model is to be embodiment with " L " shape, link and constitute vertical or horizontal straight line configuration, surface in circuit substrate 10, its fixed form is regardless of, can be welding or bonding mode, and make this controlled source or controlled load circuit be done vertical or horizontal binding, and make this conductor piece 20 respectively to vertical or horizontal end be linked to several power terminals 30 and 30 ', to link for controlled source and controlled load circuit respectively, the vertical or horizontal corresponding relation of this power terminal 30 and 30 ' then be in pairs, other is in the horizontal or lengthwise position of this circuit substrate 10, then be provided with some control terminals 40, its be provided with direction then with power terminal 30 and 30 ' be the setting of mutually perpendicular direction, can make convenient identification of workmen and correct distribution.

The position of each the thyristor element 11 in the above-mentioned circuit substrate 10, cutter is established with an allocation mouth 12 respectively, its shape is to cooperate the shape of thyristor element 11 to constitute, so that circuit substrate 10 is passed at the heat radiation position 113 (as shown in Figure 3) at thyristor element 11 back sides, and, the bottom surface of this circuit substrate 10, then be combined with an insulation board 50, material formation for partiting thermal insulation, its bottom surface then fits on the fin 60, and in each the thyristor element 11 of corresponding circuits substrate 10 and the position of allocation mouth 12, then be respectively equipped with one and wear mouth 51, so that the heat radiation position 113 at thyristor element 11 back sides can be passed mouth 51 and be close on the surface of fin 60, as shown in Figure 3, the heat that this thyristor element 11 is produced can directly not add all on circuit substrate 10 or insulation board 50, and be able to dispel the heat by fin 60, the form of this fin 60 is not limited to, it in the utility model form with large tracts of land heat radiation, can make the better effects if of heat radiation, and, then be provided with several fixing holes 61 in the edge of fin 60, can be for being fixed in control cabinet 200, as Fig. 5 and shown in Figure 6, and make whole solid-state relay 100 be made things convenient for fixed in position.

Above-mentioned solid-state relay 100, can be on circuit substrate 10 and insulation board 50 in this top by a housing 70 cover caps, make it become closed state, and then be respectively equipped with some handle holes 71 and wiring hole 72 in the two ends of housing 70, for power terminal 30 and 30 ' rotary manipulation and line terminal insert to link, and on this housing 70, more be provided with a groove 73, so that control terminal 40 can be convexly set in outside the housing 70, be provided with connecting the DC control circuit, make circuit substrate 10 and power terminal 30, the moistureproof damp proof purpose of 30 ' distribution and reach.

Figure 4 shows that another preferred embodiment state of Fig. 1～solid-state relay 100 of the present utility model shown in Figure 3, wherein, show and be between this housing 70 and the circuit substrate 10, except power terminal 30 and 30 ' area of space in fill structure with explosion-proof medium 300, these explosion-proof medium 300 forms are not limit, as constituting with PU resin or polyester material, can make solid-state relay 100 of the present utility model have more explosion-proof function, can be applicable in the explosion-proof occasion.

As Fig. 5 and shown in Figure 6, solid-state relay 100 of the present utility model, in actual applications, can cooperate controlled source circuit 210 and loaded line 220 in the control cabinet 200 to make vertically (as Fig. 5) or the laterally configuration of (as Fig. 6), and by power terminal 30 and 30 ' vertical or horizontal straight line configuration relation, make power circuit 210 and loaded line 220 can do the binding one to one of orthoscopic, and the bending that needn't make 90 degree is constructed, be convenient to field personnel's distribution construction, and it is convenient when the line maintenance personnel overhaul after making, simultaneously, also make this control circuit 230 can make things convenient for assembly to be linked on the control terminal 40, can make solid-state relay 100 of the present utility model in using and group goes up and can have a practical effect that multi-faceted group position adjusts.

What deserves to be mentioned is, in the use of the utility model solid-state relay, then can be by conductor piece 20 low-impedance characteristics, and make the big electric current that is circulated on power pin 111 in the thyristor element 11 and the load pin 112, unlikelyly directly cause the heating carbonization to damage, can further promote the useful life of this solid-state relay 100 circuit substrate 10.

The structure-improved of above-mentioned Fig. 1～solid-state relay of the present utility model shown in Figure 6, the wherein explanation that is disclosed and graphic, only for ease of illustrating technology contents of the present utility model and technological means, a corner of the preferred embodiment that discloses, not thereby limit to its category.And all are modified, change at structural detail of the present utility model such as, or the equivalent substitution of element, displacement, when not breaking away from protection category of the present utility model.

Claims (10)

1, a kind of structure-improved of solid-state relay, include a circuit substrate, it is characterized in that, has a plurality of thyristor elements, and in each thyristor component placement position, then cutter is provided with an allocation mouth that makes the penetrable circuit substrate in heat radiation position at the thyristor element back side, the vertical or horizontal direction of this circuit substrate is arranged with a plurality of be provided with linking control power supply and controlled sources, the power end of controlled load circuit and control terminal, the power interface of this power terminal and thyristor element all and link respectively between the load pin with a conductor piece, and this circuit substrate below then is combined with an insulation board, its bottom surface fits on the fin, and, then be provided with the mouth of wearing of same shape in the allocation mouth position of corresponding circuit substrate.

2, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, the thyristor element on this circuit substrate is the silicon control rectifier.

3, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, the thyristor element on this circuit substrate is that two-way exchange triggers three polar bodys formation.

4, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, this conductor piece is " L " shape.

5, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, this power terminal is vertical 90 configuration relations of spending with control terminal.

6, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, then is provided with a housing on this circuit substrate and the insulation board and is covered sealing.

7, the structure-improved of solid-state relay as claimed in claim 6 is characterized in that, these housing two ends are respectively equipped with a plurality of attended operation and power circuit and loaded line terminals for power terminal and insert handle hole and the wiring hole that links.

8, the structure-improved of solid-state relay as claimed in claim 6 is characterized in that, this housing is provided with one and is convexly set in the groove that the outside is provided with the control circuit attended operation for control terminal.

9, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, wherein is filled with explosion-proof medium between circuit substrate and housing.

10, the structure-improved of solid-state relay as claimed in claim 1 is characterized in that, the periphery of said fin is provided with the plurality of fixed hole.

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