CN112309768B

CN112309768B - Plug-in solid state relay

Info

Publication number: CN112309768B
Application number: CN202011149286.1A
Authority: CN
Inventors: 殷晨钟; 季卫东; 殷孜
Original assignee: Jiangsu Gold Electrical Control Technology Co ltd
Current assignee: Jiangsu Gold Electrical Control Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2024-03-26
Anticipated expiration: 2040-10-23
Also published as: CN112309768A

Abstract

The utility model relates to a plug-in solid-state relay, use in the field of electronic components, it includes base, binding post, terminal block, metal shrinkage pool, terminal top cap and metal arch, binding post and terminal block all set up on the base, and the metal shrinkage pool sets up on the terminal block, and the metal arch is connected with the terminal top cap and peg graft in the metal shrinkage pool, has seted up the through-hole on the metal arch, is equipped with the elasticity lug that inserts in the metal shrinkage pool on the metal shrinkage pool inner wall. This application has the effect that improves relay connection stability.

Description

Plug-in solid state relay

Technical Field

The application relates to the field of electronic components, in particular to a pluggable solid-state relay.

Background

The solid-state relay is a contactless switch composed of microelectronic circuit, discrete electronic device and power electronic power device, and the isolation between control end and load end is realized by using isolating device. The input end of the solid state relay uses tiny control signals to directly drive a large current load.

The Chinese patent with the bulletin number of CN211481251U discloses a double-way plug-in solid-state relay for replacing the traditional mechanical relay, which comprises a base, a wiring terminal and a plug-in terminal; the base is provided with a plurality of wiring terminals, the pluggable terminal comprises a terminal table and a terminal top cover, wherein the terminal table is arranged on the base, the terminal table is provided with a plurality of metal concave holes, the terminal top cover is provided with a plurality of metal bulges corresponding to the metal concave holes, and the transmission of electric signals is realized by inserting the metal bulges of the terminal top cover into the metal concave holes on the terminal table; the connecting terminal is electrically connected with the plug-in terminal.

With respect to the related art, the inventor considers that the metal protrusion is in plug-in fit with the metal concave hole, and when the terminal top cover is acted by external force, the metal protrusion and the metal concave hole are easy to loosen or even fall off.

Disclosure of Invention

In order to solve the problem that the metal bulge and the metal concave hole are loosened and fall off, the application provides a plug-in solid-state relay.

The application provides a plug-in solid state relay adopts following technical scheme:

the utility model provides a plug-in solid-state relay, includes base, binding post, terminal table, metal shrinkage pool, terminal top cap and metal arch, binding post and terminal table all set up on the base, the metal shrinkage pool sets up on the terminal table, the metal arch is connected and pegging graft in the metal shrinkage pool with the terminal top cap, the through-hole has been seted up on the metal arch, be equipped with the elasticity lug in the metal shrinkage pool of inserting on the metal shrinkage pool inner wall, the both ends of base all are connected with the separated time piece, the wire casing that supplies the cable to pass has been seted up to the separated time piece lateral wall, be equipped with the mounting that is used for the fixed cable on the separated time piece, the mounting includes solid fixed ring and presss from both sides the cover, gu solid fixed ring fixes online groove tank bottom, press from both sides cover sliding connection in the wire casing, it is equipped with elastic taper sleeve towards solid fixed ring's one end, a plurality of division grooves have been seted up to elastic taper sleeve lateral wall circumference, it is equipped with the plectrum to press from both sides the cover lateral wall, the separated time piece lateral wall is equipped with the dog that distributes relatively with the plectrum.

By adopting the technical scheme, when the metal bulge is inserted into the metal concave hole, the elastic lug is clamped in the through hole, so that the displacement of the metal bulge is limited, the possibility of separation and falling off between the metal bulge and the metal concave hole is reduced, and the stability of relay connection is improved; each cable is separated by the wire slot, so that the arrangement order of the cables is improved, and the operator can conveniently check the cables in the later period; the cable and the branching block are fixed by the fixing piece, so that the possibility that the head of the cable and the wiring terminal are loosened and fall off when the cable is pulled by external force is reduced; the operator sequentially passes through the fixing ring, the elastic taper sleeve and the rubber sleeve, the elastic taper sleeve is inserted into the fixing ring in a sliding manner, and the elastic taper sleeve is contracted inwards by extruding the elastic taper sleeve through the fixing ring, so that the cable is clamped, and the cable clamping device is simple and convenient; the stopper pushes the jacket under the elastic pushing force of the spring, so that the elastic taper sleeve keeps the extrusion state with the fixing ring.

Optionally, the terminal top cap all is equipped with a plurality of interval arrangement's fin in the both sides that are on the back each the fin is kept away from the one end of terminal top cap and is all offered spacing hole, the base all articulates through the articulated shaft in the both sides of terminal top cap has the arc pole, the one end that the articulated shaft was kept away from to the arc pole is equipped with spacing post, the epaxial cover of articulated is equipped with the torsional spring, works as the torsional spring is in when natural state, spacing post inserts spacing downthehole.

By adopting the technical scheme, the radiating fins increase the contact area between the terminal top cover and the air, thereby being beneficial to accelerating the radiating speed of the relay during working and maintaining the load capacity of the relay; the arc rod drives the limiting column to be inserted into the limiting hole under the elastic force of the torsion spring, so that the base is fixed with the terminal top cover, the bearing capacity of the terminal top cover is improved, and the plugging of the metal terminal and the metal concave hole is stabilized.

Optionally, the cooling fin is provided with an inclined chamfer, and the chamfer corresponds to the limit column.

Through adopting above-mentioned technical scheme, when the operator inserted the terminal top cap down, the chamfer extruded spacing post, forced spacing post outwards to open, made things convenient for the connection of terminal top cap.

Optionally, each fin passes through the intermediate lamella and connects, terminal top cap lateral wall is equipped with the guide rail, the guide slot that supplies the guide rail to slide in has been seted up to the intermediate lamella lateral wall, the guide rail is tight fit with the guide slot.

By adopting the technical scheme, the guide rail and the guide groove adopt the splicing structure, thereby facilitating the integral assembly and disassembly of the radiating fin.

Optionally, slots for embedding cables are formed in the fixing ring, the taper sleeve and the jacket, an arc plate is arranged at one end of the slot wall, far away from the fixing ring, of the slot, a guide pillar is arranged between the arc plate and the fixing ring, and the guide pillar penetrates through the jacket.

Through adopting above-mentioned technical scheme, the slot makes the cable can directly bury in solid fixed ring, taper sleeve and the clamp cover when the winding displacement, has made things convenient for the buried line operation of operator, and the guide pillar has played the guide effect to the clamp cover for each slot position keeps unanimous.

Optionally, the base lateral wall is equipped with the regulating plate, the one end that the base was kept away from to the regulating plate passes through adjusting screw and is connected with the separated time piece, set up the waist type groove that supplies adjusting screw to pass on the regulating plate.

By adopting the technical scheme, the waist-shaped groove provides a certain displacement for the branching block, so that an operator can move the branching block to adjust the distance between the branching block and the base, and the branching block is convenient and flexible.

Optionally, the terminal top cap terminal surface is equipped with the reference column, set up the locating hole that supplies the reference column to insert on the terminal platform.

Through adopting above-mentioned technical scheme, the cooperation of reference column and locating hole has played the location effect to the terminal top cap, has reduced the possibility that the terminal top cap was inserted conversely.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the displacement of the metal bulge is limited by the matching of the elastic lug and the through hole, so that the stability of relay connection is improved;

2. the radiating fin enhances the radiating effect of the terminal top cover and meets the requirements of the relay on different working environments; the base is fixed with the terminal top cover, so that the bearing capacity of the terminal top cover is improved; the cable and the branching block are fixed through the fixing piece, so that the possibility that the cable head and the wiring terminal are loosened and fall off when the cable is pulled by external force is reduced.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an embodiment of the present application for embodying metal pits.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a schematic structural diagram of an embodiment of the present application for embodying a positioning post.

Fig. 5 is a schematic structural view of an embodiment of the present application for embodying an arc rod and a limit post.

Fig. 6 is an enlarged view at B in fig. 5.

Fig. 7 is a schematic structural view of a fastener according to an embodiment of the present application.

Reference numerals illustrate: 1. a base; 11. a connection terminal; 12. a terminal block; 121. a metal concave hole; 13. a terminal top cover; 131. a metal bump; 14. a through hole; 15. an elastic bump; 16. positioning columns; 17. positioning holes; 2. a heat sink; 21. a limiting hole; 22. an arc rod; 221. a limit column; 23. a hinge shaft; 231. a torsion spring; 24. chamfering; 25. an intermediate plate; 251. a guide groove; 26. a guide rail; 3. a branching block; 31. a wire slot; 32. an adjusting plate; 321. an adjusting screw; 34. a waist-shaped groove; 4. a fixing member; 41. a fixing ring; 42. a jacket; 43. an elastic taper sleeve; 431. a dividing groove; 44. a shifting block; 45. a stop block; 451. a spring; 46. a slot; 47. an arc plate; 471. and (5) a guide post.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a plug-in solid-state relay. As shown in fig. 1 and 2, the pluggable solid-state relay comprises a base 1 and pluggable terminals, wherein a plurality of wiring terminals 11 are arranged on the base 1, the wiring terminals 11 are symmetrically distributed at two ends of the base 1, the pluggable terminals comprise terminal blocks 12 and terminal top covers 13, the terminal blocks 12 are arranged on the base 1, a plurality of metal concave holes 121 are arranged on the terminal blocks 12, a plurality of metal protrusions 131 corresponding to the metal concave holes 121 are arranged on the terminal top covers 13, and electric signal transmission is realized by inserting the metal protrusions 131 of the terminal top covers 13 into the metal concave holes 121 on the terminal blocks 12, and the wiring terminals 11 are electrically connected with the pluggable terminals.

As shown in fig. 2 and 3, a through hole 14 is formed in the side wall of the metal protrusion 131 at the end far away from the terminal top cover 13, an elastic protruding block 15 is arranged on the inner wall of the metal concave hole 121, and the section of the elastic protruding block 15 is arc-shaped; as shown in fig. 4, the terminal top cover 13 is provided with a positioning column 16 at an end face thereof, and the terminal block 12 is provided with a positioning hole 17 corresponding to the positioning column 16.

As shown in fig. 2 and 3, when the terminal top cover 13 is docked with the terminal table 12, the metal protrusion 131 is inserted into the metal concave hole 121, the elastic protrusion 15 is clamped into the through hole 14, movement of the metal protrusion 131 is limited, the possibility that the metal protrusion 131 and the metal concave hole 121 are loose and fall off is reduced, connection of the relay is stabilized, meanwhile, the positioning column 16 is inserted into the positioning hole 17, positioning effect on the metal protrusion 131 is achieved, and the possibility of reverse insertion of the terminal top cover 13 and the terminal table 12 is reduced.

As shown in fig. 5, the terminal top cover 13 is provided with middle plates 25 on two opposite sides, one side of the terminal top cover 13 facing the middle plates 25 is provided with two guide rails 26 extending along the height direction, the side wall of the middle plates 25 is provided with guide grooves 251 for the guide rails 26 to slide in, the guide rails 26 are in tight fit with the guide grooves 251, so that the middle plates 25 and the terminal top cover 13 are kept relatively fixed, the side walls of the two middle plates 25 facing away from the top ends of the terminals are vertically provided with a plurality of heat dissipation fins 2 arranged at intervals, the heat dissipation fins 2 are parallel to the height direction of the terminal top cover 13, and the middle plates 25 and the heat dissipation fins 2 are made of copper materials; when the relay works, heat of the terminal top cover 13 is transferred to the middle plate 25 and the radiating fins 2, the contact area between the terminal top cover 13 and air is increased on the middle plate 25 and the radiating fins 2, so that the heat dissipation speed of the terminal top cover 13 is increased, the load capacity of the relay is stabilized, and the adaptability of the relay to the environment is improved.

As shown in fig. 5 and 6, the end of each heat sink 2 far away from the terminal top cover 13 is provided with a limiting hole 21, the limiting hole 21 is close to the base 1 to distribute the heat sink 2, corners of the limiting pieces close to the limiting hole 21 are provided with chamfers 24, the base 1 is hinged with arc rods 22 on two sides of the terminal top cover 13 through hinge shafts 23, the arc rods 22 are provided with limiting columns 221 far away from one end hinged with the arc rods, axes of the limiting columns 221 are parallel to the arrangement direction of the heat sink 2, torsion springs 231 are sleeved on the hinge shafts 23, and when the torsion springs 231 are in a natural state, the distance between the two limiting columns 221 is smaller than the distance between one ends of the two groups of heat sinks 2 far away from the terminal top cover 13.

As shown in fig. 5, two ends of the side wall of the base 1 in the length direction are respectively provided with an adjusting plate 32, one ends of the two adjusting plates 32 far away from the base 1 are respectively connected with a branching block 3 through adjusting screws 321, waist-shaped grooves 34 for the adjusting screws 321 to pass through are formed in the adjusting plates 32, so that an operator can move the branching block 3 to be close to or far away from the base 1, and after the position of the branching block 3 is adjusted, the operator can fix the branching block 3 by screwing the adjusting screws 321.

As shown in fig. 5, the wire dividing block 3 is provided with a plurality of wire grooves 31 for the cables to pass through, two ends of the wire grooves 31 extend out of the wire dividing block 3, and the wire dividing block 3 is provided with a fixing piece 4 for fixing the cables.

Referring to fig. 7, the fixing member 4 includes a fixing ring 41, a jacket 42 and an arc plate 47, the fixing ring 41 is fixed at one end of the slot wall of the slot 31 near the base 1, the arc plate 47 is fixed at the other end of the slot wall of the slot 31, the jacket 42 is slidably connected in the slot 31 and located between the fixing ring 41 and the arc plate 47, the jacket 42 is provided with an elastic taper sleeve 43 at one end facing the base 1, the elastic taper sleeve 43 and the jacket 42 are integrally formed, a plurality of dividing slots 431 distributed at equal intervals along the axial circumferential direction of the conical surface of the elastic taper sleeve 43 are formed in the conical surface of the elastic taper sleeve 43, the elastic taper sleeve 43 is divided into a plurality of pieces, and the inner diameter of the elastic taper sleeve 43 is the same as the outer diameter of the cable.

Referring to fig. 7, slots 46 for inserting cables are formed in the fixing ring 41, the taper sleeve and the jacket 42, the slots 46 face the slots of the wire slot 31, a plurality of parallel guide posts 471 are connected between the fixing ring 41 and the arc plate 47, and the two guide posts 471 penetrate through the jacket 42 to guide the jacket 42 and make the slots 46 in the same direction.

As shown in fig. 7, two shifting blocks 44 symmetrically distributed about the axis are arranged on the side wall of the jacket 42, the branching blocks 3 are provided with stop blocks 45 corresponding to the shifting blocks 44 one by one, the opposite stop blocks 45 are connected with the shifting blocks 44 through springs 451, the springs 451 are in a compressed state, the jacket 42 drives the elastic taper sleeve 43 to be inserted into the fixed ring 41 under the elastic thrust of the springs 451, and the elastic taper sleeve 43 is contracted inwards under the extrusion of the inner ring of the fixed ring 41.

The implementation principle of the embodiment of the application is as follows: when the terminal top cover 13 and the terminal table 12 are in butt joint, an operator makes the positioning column 16 opposite to the positioning column 16, the chamfer 24 opposite to the limiting columns 221, then presses down the terminal top cover 13, the chamfer 24 of the cooling fin 2 extrudes the limiting columns 221 to force the two limiting columns 221 to rotate outwards, the torsion spring 231 is twisted to generate elastic deformation, when the metal terminal is inserted into the metal concave hole 121, the positioning column 16 is inserted into the positioning hole 17, the limiting columns 221 relatively move to the positions corresponding to the limiting holes 21, the arc rod 22 rotates under the elastic force of the torsion spring 231 to be close to the cooling fin 2, so that the limiting columns 221 are driven to be inserted into the limiting holes 21 to pull the cooling fin 2, the possibility that the terminal top cover 13 shakes is reduced, and the insertion of the metal bulge 131 and the metal concave hole 121 is stabilized.

When the cable is buried, the head of the cable inner core is fixed on the wiring terminal 11, an operator firstly moves the jacket 42 to separate the elastic taper sleeve 43 from the fixed ring 41, then straightens the rest cables and inserts the cables from the fixed ring 41, the taper sleeve and the slots 46 on the jacket 42, loosens the jacket 42, the jacket 42 moves back under the elastic thrust of the spring 451, the elastic taper sleeve 43 inserts into the fixed ring 41 to tighten the cables, so that the cables are relatively fixed with the branching block 3, the possibility that the connection part of the cable inner core head and the wiring terminal 11 is loose and falls under the action of external traction force is reduced, each cable corresponds to one branching groove 31, and each cable is separated, so that the buried cable is kept ordered.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a plug-in solid-state relay, includes base (1), binding post (11), terminal platform (12), metal shrinkage pool (121), terminal top cap (13) and metal arch (131), binding post (11) and terminal platform (12) all set up on base (1), metal shrinkage pool (121) set up on terminal platform (12), metal arch (131) are connected and peg graft in metal shrinkage pool (121) with terminal top cap (13), its characterized in that: the utility model discloses a heat dissipation device, including metal concave hole (121) and top cover (13), metal concave hole (131) are gone up and are offered through-hole (14), be equipped with on the metal concave hole (121) inner wall and insert elastic lug (15) in metal concave hole (121), the both ends of base (1) all are connected with branch block (3), branch block (3) lateral wall has been offered wire casing (31) that supply the cable to pass, be equipped with mounting (4) that are used for fixed cable on branch block (3), mounting (4) include solid fixed ring (41) and clamp cover (42), gu fixed ring (41) are fixed in wire casing (31) tank bottom, clamp cover (42) sliding connection is in wire casing (31), clamp cover (42) are equipped with elastic taper sleeve (43) towards the one end in solid fixed ring (41), a plurality of partition grooves (431) have been offered to elastic taper sleeve (43) lateral wall circumference, clamp cover (42) lateral wall is equipped with plectrum (44), branch block (3) lateral wall be equipped with dog (45) that are used for fixing the cable, and clamp dog (45) and plectrum (44) are connected with between dog (45) and plectrum (44), a plurality of heat dissipation device both sides (13) are kept away from each other in top cover (13) each side of top cover (13), base (1) all articulates through articulated shaft (23) in the both sides of terminal top cap (13) has arc pole (22), the one end that articulated shaft (23) was kept away from to arc pole (22) is equipped with spacing post (221), the cover is equipped with torsional spring (231) on articulated shaft (23), works as when torsional spring (231) are in natural state, spacing post (221) inserts in spacing hole (21), and is individual fin (2) are connected through intermediate plate (25), terminal top cap (13) lateral wall is equipped with guide rail (26), intermediate plate (25) lateral wall has seted up guide slot (251) that supply guide rail (26) to slide in, guide rail (26) are tight fit with guide slot (46) that supply the cable to imbed on fixed ring (41), taper sleeve and clamp cover (42), the one end that fixed ring (41) were kept away from to slot (31) is equipped with arc plate (47), be equipped with guide pillar (471) between arc plate (47) and fixed ring (41), guide pillar (42) pass clamp cover (471).

2. The pluggable solid state relay of claim 1, wherein: the cooling fin (2) is provided with an inclined chamfer (24), and the chamfer (24) corresponds to the limit column (221).

3. The pluggable solid state relay of claim 1, wherein: the base (1) lateral wall is equipped with regulating plate (32), one end that base (1) was kept away from to regulating plate (32) is connected with separated time piece (3) through adjusting screw (321), waist type groove (34) that supply adjusting screw (321) to pass have been seted up on regulating plate (32).

4. The pluggable solid state relay of claim 1, wherein: the terminal top cover (13) end face is provided with a positioning column (16), and the terminal block (12) is provided with a positioning hole (17) for inserting the positioning column (16).