CN112309768A

CN112309768A - Plug-in solid-state relay

Info

Publication number: CN112309768A
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: 2021-02-02
Anticipated expiration: 2040-10-23
Also published as: CN112309768B

Abstract

The application relates to a plug-in solid state relay is used in electronic components's field, and it includes base, binding post, terminal platform, metal shrinkage pool, terminal top cap and metal arch, and binding post and terminal platform all set up on the base, and the metal shrinkage pool setting is at the terminal bench, and the metal arch is connected with the terminal top cap and inserts in the metal shrinkage pool, has seted up the through-hole on the metal arch, is equipped with the elastic convex block who 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 plug-in solid-state relay.

Background

The solid relay is a non-contact switch composed of microelectronic circuit, discrete electronic device and power electronic power device, and the isolation device is used to realize the isolation between control end and load end. The input end of the solid-state relay uses a tiny control signal to directly drive a heavy-current load.

Chinese patent No. CN211481251U discloses a two-way plug-in solid-state relay for replacing a conventional mechanical relay, which includes a base, a connection terminal, and a plug-in terminal; the base is provided with a plurality of wiring terminals, the plug-in terminal comprises a terminal table and a terminal top cover, wherein the terminal table is arranged on the base, a plurality of metal concave holes are formed in the terminal table, a plurality of metal protrusions corresponding to the metal concave holes are formed in the terminal top cover, and the metal protrusions of the terminal top cover are inserted into the metal concave holes in the terminal table to realize transmission of electric signals; the wiring terminal is electrically connected with the plug-in terminal.

To the above-mentioned correlation technique, the inventor thinks that the metal protruding matches with the metal shrinkage pool grafting, and when the terminal top cap received the exogenic action, lead to metal protruding and the metal shrinkage pool to take place to become flexible even drop easily.

Disclosure of Invention

In order to improve the problem that metal arch and metal shrinkage pool take place to become flexible, drop, this 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 platform, metal shrinkage pool, terminal top cap and metal arch, binding post and terminal platform all set up on the base, the metal shrinkage pool sets up at the terminal bench, the metal arch is connected with the terminal top cap and inserts in the metal shrinkage pool, the through-hole has been seted up on the metal arch, be equipped with the elastic convex block who inserts in the metal shrinkage pool on the metal shrinkage pool inner wall.

Through adopting above-mentioned technical scheme, when the metal arch inserted in the metal concave hole, the elastic lug card had restricted the bellied displacement of metal in the through-hole to reduce the possibility that metal arch and metal concave hole internal separation, drop, improved the stability that the relay is connected.

Optionally, the terminal top cap all is equipped with a plurality of interval arrangement's fin in the both sides of carrying on the back mutually, each the spacing hole has all been seted up to the one end that the terminal top cap was kept away from to the fin, 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 cover is equipped with the torsional spring on the articulated shaft, works as when the torsional spring is in natural state, spacing post inserts spacing downthe.

By adopting the technical scheme, the contact area of the terminal top cover and the air is increased by the radiating fins, so that the radiating speed of the relay during working is increased, and the load capacity of the relay is maintained; the arc rod drives the limiting column to be inserted into the limiting hole under the elastic force of the torsional spring, so that the base is fixed with the terminal top cover, the bearing capacity of the terminal top cover is improved, and the insertion of the metal terminal and the metal concave hole is stabilized.

Optionally, an inclined chamfer is arranged on the radiating fin, and the chamfer corresponds to the limiting column.

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

Optionally, the heat dissipation fins are connected through an intermediate plate, a guide rail is arranged on the side wall of the terminal top cover, a guide groove for the guide rail to slide into is formed in the side wall of the intermediate plate, and the guide rail and the guide groove are in tight fit.

Through adopting above-mentioned technical scheme, guide rail and guide slot adopt the grafting structure, have made things convenient for the holistic loading and unloading of fin.

Optionally, both ends of the base are connected with the branching blocks, the side walls of the branching blocks are provided with wire grooves for cables to pass through, and the branching blocks are provided with fixing pieces for fixing the cables.

By adopting the technical scheme, the cable slots are used for separating the cables, so that the ordering of cable arrangement is improved, and the later-stage investigation of an operator is facilitated; the fixing piece fixes the cable and the wire distributing block, so that the possibility that the head of the cable is loosened and falls off from the wiring terminal when the cable is pulled by external force is reduced.

Optionally, the fixing member includes a fixing ring and a clamping sleeve, the fixing ring is fixed at the bottom of the slot, the clamping sleeve is slidably connected in the slot, an elastic taper sleeve is arranged at one end of the clamping sleeve facing the fixing ring, and a plurality of dividing slots are circumferentially formed in the side wall of the elastic taper sleeve.

Through adopting above-mentioned technical scheme, the operator passes the cable in solid fixed ring, elasticity taper sleeve and the gum cover in proper order, and slip elasticity taper sleeve inserts in the fixed ring, makes elasticity taper sleeve internal contraction through the extrusion of fixed ring to the elasticity taper sleeve to clip the cable, simple and convenient.

Optionally, the side wall of the clamping sleeve is provided with a shifting block, the side wall of the distributing block is provided with a stop block which is distributed opposite to the shifting block, and a spring is connected between the stop block and the shifting block.

Through adopting above-mentioned technical scheme, the dog pushes away the cover under the elastic thrust of spring for the extrusion state of elasticity taper sleeve maintenance and solid fixed ring.

Optionally, the fixing ring, the taper sleeve and the clamping sleeve are all provided with slots for cables to be embedded in, an arc plate is arranged at one end of the slot wall of the wire slot, which is far away from the fixing ring, a guide pillar is arranged between the arc plate and the fixing ring, and the guide pillar penetrates through the clamping sleeve.

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

Optionally, the base lateral wall is equipped with the regulating plate, the regulating plate is kept away from the one end of base and is passed through adjusting screw and be 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 operation is convenient and flexible.

Optionally, the terminal top cover end face is provided with a positioning column, and the terminal table is provided with a positioning hole for inserting the positioning column.

Through adopting above-mentioned technical scheme, the cooperation of reference column and locating hole has played the positioning action to the terminal top cap, has reduced the terminal top cap and has inserted reverse possibility.

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 connection stability of the relay 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 fixing piece fixes the cable and the wire distributing block, 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.

Drawings

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

Fig. 2 is a schematic structural diagram of a metal recess according to an embodiment of the present disclosure.

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

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

Fig. 5 is a schematic structural diagram for embodying an arc rod and a limit column in the embodiment of the present application.

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

Fig. 7 is a schematic structural diagram for embodying the fixing member according to the embodiment of the present application.

Description of reference numerals: 1. a base; 11. a wiring terminal; 12. a terminal block; 121. a metal recess; 13. a terminal top cover; 131. a metal projection; 14. a through hole; 15. an elastic bump; 16. a positioning column; 17. positioning holes; 2. a heat sink; 21. a limiting hole; 22. an arc rod; 221. a limiting column; 23. hinging a shaft; 231. a torsion spring; 24. chamfering; 25. a middle 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. dividing the groove; 44. shifting blocks; 45. a stopper; 451. a spring; 46. a slot; 47. an arc plate; 471. and (6) a guide pillar.

Detailed Description

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

The embodiment of the application discloses plug-in solid state relay. As shown in fig. 1 and fig. 2, the plug-in solid-state relay includes a base 1 and a plug-in terminal, a plurality of wiring terminals 11 are arranged on the base 1, the plurality of wiring terminals 11 are symmetrically distributed at two ends of the base 1, the plug-in terminal includes a terminal block 12 and a terminal top cover 13, the terminal block 12 is installed on the base 1, and a plurality of metal concave holes 121 are arranged on the terminal block 12, a plurality of metal protrusions 131 corresponding to the metal concave holes 121 are arranged on the terminal top cover 13, the metal protrusions 131 of the terminal top cover 13 are inserted into the metal concave holes 121 on the terminal block 12 to realize transmission of electric signals, and the wiring terminals 11 are electrically.

As shown in fig. 2 and 3, a through hole 14 is formed in one end of the side wall of the metal protrusion 131, which is far away from the terminal top cover 13, an elastic bump 15 is arranged on the inner wall of the metal concave hole 121, and the section of the elastic bump 15 is arc-shaped; as shown in fig. 4, a positioning post 16 is vertically disposed on the end surface of the terminal top cover 13, and a positioning hole 17 corresponding to the positioning post 16 is disposed on the terminal block 12.

As shown in fig. 2 and 3, when the terminal top cover 13 is butted with the terminal block 12, the metal protrusion 131 is inserted into the metal recess 121, and the elastic bump 15 is clamped into the through hole 14, so that the movement of the metal protrusion 131 is limited, the possibility that the metal protrusion 131 and the metal recess 121 are loosened and fall off is reduced, the connection of the relay is stabilized, and meanwhile, the positioning column 16 is inserted into the positioning hole 17, so that the positioning effect on the metal protrusion 131 is achieved, and the possibility that the terminal top cover 13 is reversely inserted into the terminal block 12 is reduced.

As shown in fig. 5, the terminal top cover 13 is provided with intermediate plates 25 on two opposite sides, one side of the terminal top cover 13 facing the intermediate plates 25 is provided with two guide rails 26 extending along the height direction thereof, the side wall of the intermediate plate 25 is provided with a guide groove 251 for the guide rails 26 to slide in, the guide rails 26 and the guide groove 251 are tightly fitted, so that the intermediate plate 25 and the terminal top cover 13 are relatively fixed, the side walls of the two intermediate plates 25 away from the top end of the terminal are both vertically provided with a plurality of radiating fins 2 arranged at intervals, the radiating fins 2 are parallel to the height direction of the terminal top cover 13, and the intermediate plate 25 and the radiating fins 2 are both made of; when the relay works, the heat of the terminal top cover 13 is transferred to the intermediate plate 25 and the radiating fins 2, and the contact area between the terminal top cover 13 and the air is increased on the intermediate plate 25 and the radiating fins 2, so that the radiating 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, each fin 2 keeps away from the one end of terminal top cap 13 and has all been seted up spacing hole 21, spacing hole 21 is close to base 1 distribution fin 2, the corner that spacing piece is close to spacing hole 21 is equipped with chamfer 24, base 1 all articulates through articulated shaft 23 in the both sides of terminal top cap 13 has arc rod 22, arc rod 22 keeps away from articulated one end and is equipped with spacing post 221, spacing post 221 axis parallels with the array direction of fin 2, the cover is equipped with torsional spring 231 on articulated shaft 23, when torsional spring 231 is in natural state, the distance between two spacing posts 221 is less than the distance that terminal top cap 13 one end was kept away from to two sets of fin 2.

As shown in fig. 5, the adjusting plates 32 are respectively arranged at the two ends of the side wall of the base 1 in the length direction, the end, far away from the base 1, of each of the two adjusting plates 32 is connected with the wire distributing block 3 through an adjusting screw 321, and a waist-shaped groove 34 for the adjusting screw 321 to pass through is formed in each adjusting plate 32, so that the operator can move the wire distributing block 3 to be close to or far away from the base 1, and the wire distributing block 3 can be fixed by tightening the adjusting screw 321 after the position of the wire distributing block 3 is adjusted.

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

As shown in fig. 7, the fixing member 4 includes a fixing ring 41, a clamping sleeve 42 and an arc plate 47, the fixing ring 41 is fixed at one end of the slot wall of the slot 31 close to the base 1, the arc plate 47 is fixed at the other end of the slot wall of the slot 31, the clamping sleeve 42 is slidably connected in the slot 31 and located between the fixing ring 41 and the arc plate 47, one end of the clamping sleeve 42 facing the base 1 is provided with an elastic taper sleeve 43, the elastic taper sleeve 43 and the clamping sleeve 42 are integrally formed, a plurality of dividing grooves 431 are formed in the conical surface of the elastic taper sleeve 43 and are circumferentially distributed at equal intervals along the axis of the elastic taper sleeve, the elastic taper sleeve 43 is divided into a.

As shown in fig. 7, the fixing ring 41, the taper sleeve and the clamping sleeve 42 are all provided with slots 46 for cables to be inserted into, the slots 46 face the slot of the trunking 31, a connecting parallel guide post 471 is connected between the fixing ring 41 and the arc plate 47, both the guide posts 471 penetrate through the clamping sleeve 42, and the clamping sleeve 42 is guided, and the slots 46 are in the same direction.

As shown in fig. 7, two shifting blocks 44 symmetrically distributed about the axis of the jacket 42 are arranged on the side wall of the jacket 42, the branching block 3 is provided with stoppers 45 corresponding to the shifting blocks 44 one by one, the opposite stoppers 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 sleeves 43 to be inserted into the fixing rings 41 under the elastic thrust of the springs 451, and the elastic taper sleeves 43 are retracted inward under the extrusion of the inner rings of the fixing rings 41.

The implementation principle of the embodiment of the application is as follows: when the terminal top cover 13 and the terminal block 12 are butted, an operator makes the positioning column 16 opposite to the positioning column 16 and the chamfer 24 opposite to the limit column 221, then presses the terminal top cover 13, the chamfer 24 of the heat sink 2 extrudes the limit column 221 to force the two limit 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 limit column 221 relatively moves to a position corresponding to the limit hole 21, the arc rod 22 rotates under the elastic force of the torsion spring 231 to be close to the heat sink 2, so that the limit column 221 is driven to be inserted into the limit hole 21 to pull the heat sink 2, the possibility of shaking of the terminal top cover 13 is reduced, and the splicing of the metal protrusion 131 and the metal concave hole 121 is stabilized.

When the cable is buried, the head of the inner core of the cable is fixed on the wiring terminal 11, an operator firstly moves the clamping sleeve 42 to separate the elastic taper sleeve 43 from the fixing ring 41, then straightens the rest of the cable and inserts the cable into the fixing ring 41, the taper sleeve and the slot 46 on the clamping sleeve 42, the clamping sleeve 42 is loosened, the clamping sleeve 42 moves back under the elastic thrust of the spring 451, the elastic taper sleeve 43 is inserted into the fixing ring 41 to tighten the cable, so that the cable and the wire distributing block 3 are kept relatively fixed, the possibility that the joint of the head of the inner core and the wiring terminal 11 is loosened and falls off under the action of external pulling force of the cable is reduced, each cable corresponds to one wire distributing groove 31, each cable is separated, and the orderliness of buried cables.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present 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 plug in metal shrinkage pool (121) with terminal top cap (13), its characterized in that: the metal protrusion (131) is provided with a through hole (14), and the inner wall of the metal concave hole (121) is provided with an elastic bump (15) inserted into the metal concave hole (121).

2. The pluggable solid-state relay according to claim 1, wherein: terminal top cap (13) all are equipped with a plurality of interval arrangement's fin (2) in the both sides that carry on the back mutually, each spacing hole (21) have all been seted up to the one end that terminal top cap (13) were kept away from in fin (2), 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) were kept away from in 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) insert in spacing hole (21).

3. The pluggable solid-state relay according to claim 2, wherein: the heat radiating fin (2) is provided with an inclined chamfer (24), and the chamfer (24) corresponds to the limiting column (221).

4. The pluggable solid-state relay according to claim 2, wherein: each fin (2) is connected through intermediate plate (25), terminal top cap (13) lateral wall is equipped with guide rail (26), intermediate plate (25) lateral wall is seted up and is supplied guide rail (26) to slide in guide slot (251), guide rail (26) and guide slot (251) are tight fit.

5. The pluggable solid-state relay according to claim 1, wherein: the cable fixing device is characterized in that the two ends of the base (1) are connected with the wire distributing blocks (3), wire grooves (31) for the cables to penetrate are formed in the side walls of the wire distributing blocks (3), and fixing pieces (4) used for fixing the cables are arranged on the wire distributing blocks (3).

6. The pluggable solid-state relay according to claim 5, wherein: the fixing piece (4) comprises a fixing ring (41) and a clamping sleeve (42), the fixing ring (41) is fixed at the bottom of the wire groove (31), the clamping sleeve (42) is connected in the wire groove (31) in a sliding mode, an elastic taper sleeve (43) is arranged at one end, facing the fixing ring (41), of the clamping sleeve (42), and a plurality of partition grooves (431) are formed in the circumferential direction of the side wall of the elastic taper sleeve (43).

7. The pluggable solid-state relay according to claim 6, wherein: the side wall of the clamping sleeve (42) is provided with a shifting block (44), the side wall of the distributing block (3) is provided with a stop block (45) which is distributed opposite to the shifting block (44), and a spring (451) is connected between the stop block (45) and the shifting block (44).

8. The pluggable solid-state relay according to claim 7, wherein: the fixing ring (41), the taper sleeve and the clamping sleeve (42) are all provided with slots (46) for cables to be embedded into, one end, far away from the fixing ring (41), of the slot wall of the slot (31) is provided with an arc plate (47), a guide post (471) is arranged between the arc plate (47) and the fixing ring (41), and the guide post (471) penetrates through the clamping sleeve (42).

9. The pluggable solid-state relay according to claim 8, wherein: base (1) lateral wall is equipped with regulating plate (32), the one end that base (1) was kept away from in regulating plate (32) passes through adjusting screw (321) and is connected with separated time piece (3), set up waist type groove (34) that supply adjusting screw (321) to pass on regulating plate (32).

10. The pluggable solid-state relay according to claim 1, wherein: the terminal top cover (13) end face is provided with a positioning column (16), and the terminal table (12) is provided with a positioning hole (17) for the positioning column (16) to insert.