CN220510291U - Relay socket - Google Patents

Abstract

The utility model discloses a relay socket, which comprises a socket body and a plurality of groups of terminal assemblies arranged in the socket body, wherein each group of terminal assemblies respectively comprises a wiring terminal and a clamping spring; the socket further comprises a multi-layer circuit board which is arranged in the socket body and comprises a plurality of mutually insulated conductive layers, wherein each conductive layer comprises one or more mutually insulated conductive circuits; the connecting terminals and the clamping springs of each group of terminal assemblies are respectively and electrically connected with the same conductive line, and the terminal assemblies of different groups correspond to different conductive lines. The utility model adopts the multilayer circuit board to replace a plurality of circuit boards in the prior art, and all the conductive circuits are intensively arranged on the multilayer circuit board, so that parts such as welding bridging columns and the like are omitted, the overall structure layout is more compact, the assembly process is simpler, and the connection is more reliable.

Description

Relay socket

Technical Field

The utility model relates to the technical field of sockets, in particular to a relay socket.

Background

The relay is an automatic switch which uses small current to control large current, and plays roles of automatic regulation, safety protection, switching circuit and the like in a circuit, and the relay is usually matched with a relay socket for use. Currently, most relay sockets with circuit boards use single-face plates or double-face plates, so that when the number of connecting terminals 3 'and clamping springs 4' in the relay socket is large, a plurality of circuit boards 5 'distributed up and down are needed to be connected, and for this purpose, related conductive circuits in different circuit boards are usually needed to be electrically connected by using bridging columns and the like 6', as shown in fig. 1. Therefore, the relay socket adopting the plurality of circuit boards has the problems of insufficient compactness of overall layout, complex assembly process, high welding reject ratio and the like.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a relay socket which adopts a multilayer circuit board to replace a plurality of circuit boards in the prior art, and effectively solves the technical problems existing in the prior art.

The technical scheme adopted for solving the technical problems is as follows: a relay socket comprises a socket body and a plurality of groups of terminal assemblies arranged in the socket body, wherein each group of terminal assemblies respectively comprises a wiring terminal and a clamping spring; the socket further comprises a multi-layer circuit board which is arranged in the socket body and comprises a plurality of mutually insulated conductive layers, wherein each conductive layer comprises one or more mutually insulated conductive circuits; the connecting terminals and the clamping springs of each group of terminal assemblies are respectively and electrically connected with the same conductive line, and the terminal assemblies of different groups correspond to different conductive lines.

Further, the multilayer circuit board is provided with first jacks corresponding to each connecting terminal respectively, the multilayer circuit board is provided with second jacks corresponding to each clamping spring respectively, one ends of connecting terminals of each group of terminal assemblies are respectively inserted and welded into the corresponding first jacks, and one ends of clamping springs of each group of terminal assemblies are respectively inserted and welded into the corresponding second jacks.

Further, first isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the connecting terminals correspond to and are adjacent to the coil part and the load part of the relay.

Further, the first isolation structure comprises a first isolation hole arranged on the multilayer circuit board; the first isolation structure further comprises a retaining wall arranged on the socket body, the retaining wall penetrates through the first isolation hole upwards or downwards, and the top end of the retaining wall is higher than the top surface of the multilayer circuit board. Further, second isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the second isolation structures correspond to different groups of loads of the relay and are adjacent to each other.

Further, the second isolation structure comprises a second isolation hole arranged on the multilayer circuit board.

Further, the first jacks formed by the multilayer circuit board are located at the edge of the multilayer circuit board and are distributed at intervals along the periphery of the multilayer circuit board, and the second jacks formed by the multilayer circuit board are distributed in a mode of multiple rows and multiple columns.

Further, each electronic component on the multilayer circuit board is respectively arranged on the multilayer circuit board by adopting a surface mount technology; the clamping springs are of axisymmetric structures; the wiring terminal is connected with an external wire by adopting a screw.

Further, the socket body includes the socket casing and installs in the apron of socket casing bottom, both enclose into the die cavity that holds multiunit terminal assembly, multilayer circuit board, socket casing top is equipped with the first through-hole that supplies binding post to pass downwards respectively corresponding to every binding post, socket casing top is equipped with the second through-hole that supplies the clamp spring to pass downwards respectively corresponding to every clamp spring.

Furthermore, the inner top surface of the socket shell is respectively extended downwards to form a sheath below each second through hole, and the clamp spring is downwards penetrated in the sheath.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model adopts the multilayer circuit board to replace a plurality of circuit boards in the prior art, and all the conductive circuits are intensively arranged on the multilayer circuit board, so that parts such as welding bridging columns and the like are omitted, the overall structure layout is more compact, the assembly process is simpler, and the connection is more reliable.

2. The arrangement of the first jack and the second jack enables the electric connection mode of the wiring terminal, the clamping spring and the multilayer circuit board to be simpler, and can play a certain role in positioning the wiring terminal, the clamping spring and the multilayer circuit board.

3. The arrangement of the first isolation structure can greatly improve the creepage distance between the wiring terminals and/or between the clamping springs and/or between the wiring terminals and the clamping springs, which correspond to and are adjacent to the coil part and the load part of the relay, so that the use safety of products is greatly improved. Particularly, the first isolation structure comprises the first isolation holes and the retaining walls penetrating through the first isolation holes, double isolation can be achieved, and the insulation effect is further improved.

4. Each electronic component on the multilayer circuit board is arranged on the multilayer circuit board by adopting a surface mount technology, so that the electronic component and the multilayer circuit board form a whole in advance, subsequent assembly is avoided, the assembly process is further simplified, welding spots are reduced, the problem of poor soldering in small space at a local position is solved, and the productivity is improved.

5. The clamp spring is of an axisymmetric structure, so that the leading-out pin of the relay is more stable and reliable after being inserted into the clamp spring.

The utility model is described in further detail below with reference to the drawings and examples; a relay socket of the present utility model is not limited to the embodiment.

Drawings

FIG. 1 is an exploded schematic view of a prior art relay socket;

FIG. 2 is an exploded schematic view of the present utility model;

FIG. 3 is a top view of the multilayer wiring board of the present utility model;

fig. 4 is a schematic perspective view showing a combined state of the connection terminal, the clip spring, the multilayer circuit board and the cover plate of the present utility model;

FIG. 5 is a cross-sectional view of the present utility model;

FIG. 6 is an enlarged schematic view of portion A of FIG. 5;

the socket comprises a socket body, a socket shell, 11, a second through hole, 12, a sheath, 13, a sink, 2, a cover plate, 21, a chute, 22, a retaining wall, 3/3 ', a wiring terminal, 31, a wire connecting part, 32, a circuit board connecting part, 33, a short rod body, 4/4', a clamping spring, 5 ', a circuit board, 6', a bridging column, 5, a multilayer circuit board, 51, a first jack, 52, a second jack, 53, a first isolation hole, 54, a second isolation hole, 6, a screw, 7, an electronic component, 8 and a locking block.

Detailed Description

In the present disclosure, the terms "first," "second," and the like are used merely to distinguish between similar objects, and are not used to describe a particular sequence or order, nor are they to be construed as indicating or implying a relative importance. In the description, directions or positional relationships indicated by "upper", "lower", "inner", "outer", etc. are used based on directions or positional relationships shown in the drawings, only for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the scope of protection of the present utility model. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, in the description of the present utility model, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Referring to fig. 2-6, a relay socket of the present utility model includes a socket body and a plurality of terminal assemblies installed in the socket body, each terminal assembly including a connection terminal 3 and a clip 4. The utility model further comprises a multilayer wiring board 5, the multilayer wiring board 5 being housed in the socket body, the multilayer wiring board 5 comprising a plurality of mutually insulated conductive layers, each conductive layer comprising one or more mutually insulated conductive tracks, respectively. The connecting terminals 3 and the clamping springs 4 of each group of terminal assemblies are respectively and electrically connected with the same conductive line, and the terminal assemblies of different groups correspond to different conductive lines. The number of the conductive layers is particularly, but not limited to, six.

In this embodiment, the multilayer circuit board 5 is provided with a first jack 51 corresponding to each connection terminal 3, the multilayer circuit board 5 is provided with a second jack 52 corresponding to each clip 4, one end of each group of connection terminals 3 of the terminal assembly is plugged into and welded to the corresponding first jack 51, and one end of each group of clip 4 of the terminal assembly is plugged into and welded to the corresponding second jack 52. The connection terminals 3 and the clip springs 4 are respectively arranged perpendicular to the multilayer circuit board 5. The number of the terminal assemblies is particularly, but not limited to, fourteen, so that the number of the connection terminals 3 and the clamp springs 4 is fourteen, correspondingly, the number of the first jacks 51 and the second jacks 52 is fourteen, the fourteen first jacks 51 are located at the edge of the multilayer circuit board 5 and are arranged at intervals along the periphery of the multilayer circuit board 5, and the fourteen second jacks 52 are arranged in a mode of multiple rows and multiple columns, as shown in fig. 2.

As a preferred mode, each electronic component 7 on the multilayer circuit board 5 is respectively arranged on the multilayer circuit board 5 by adopting a surface mount technology, so that the electronic component 7 and the multilayer circuit board 5 are preformed into a whole, and subsequent assembly is avoided, thereby being beneficial to simplifying assembly procedures, reducing welding spots, solving the problem of poor soldering in small space at local positions and being beneficial to improving productivity.

The socket body comprises a socket shell 1 and a cover plate 2 arranged at the bottom of the socket shell 1, wherein the socket shell 1 and the cover plate 2 enclose a cavity for accommodating a plurality of groups of terminal assemblies and a plurality of layers of circuit boards 5, and a first through hole (not shown in the figure) for allowing the terminal 3 to pass downwards is formed in the top of the socket shell 1 corresponding to each terminal 3. The top of the socket housing 1 is provided with a second through hole 11 corresponding to each clamp spring 4 for the clamp springs 4 to pass downwards. The socket housing 1 and the cover plate 2 may be assembled together using a snap-fit connection.

First isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the connecting terminals correspond to and are adjacent to the coil part and the load part of the relay. The first isolation structure specifically includes a first isolation hole 53 disposed on the multilayer circuit board, where the first isolation hole is in a strip shape and is perpendicular to the adjacent connection terminal or the adjacent clip or the arrangement direction of the adjacent connection terminal and the clip, and the first isolation hole 53 may be a full hole or a half hole, as shown in fig. 3. The first isolation structure further comprises a retaining wall 22 arranged on the socket body, the retaining wall 22 is arranged on the first isolation hole 53 in an upward or downward penetrating mode, and the top end of the retaining wall is higher than the top surface of the multilayer circuit board. The baffle 22 is specifically disposed on a surface of the cover plate 2 opposite to the bottom surface of the multilayer circuit board 5, and extends upward. The shape and length of the retaining wall 22 is adapted to the shape and length of the first isolation aperture 53. The arrangement of the first isolation holes 53 and the retaining wall 22 can have double isolation and insulation effects, thereby further improving the insulation effect.

And second isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the second isolation structures correspond to different groups of loads of the relay and are adjacent to the connecting terminals and/or between the clamping springs. The second isolation structure specifically includes a second isolation hole 54 provided in the multilayer circuit board, and the second isolation hole 54 has an L-shape, as shown in fig. 3, but is not limited thereto. In the present embodiment, the connection terminals and/or the clips and/or the connection terminals and the clips corresponding to and adjacent to the coil portion and the load portion of the relay are mainly concentrated at the left end of the multilayer wiring board 5, and the connection terminals corresponding to and adjacent to the different sets of loads of the relay are mainly concentrated at the right end of the multilayer wiring board 5, so that the above-mentioned first isolation holes 53, the retaining walls 22 are mainly distributed at the left end of the multilayer wiring board 5, and the second isolation holes 54 are distributed at the right end of the multilayer wiring board 5, as shown in fig. 3, 4.

In this embodiment, the clamp spring 4 has an axisymmetric structure, so that the pin of the relay is more stable and reliable after being inserted into the clamp spring 4. The terminal 3 is connected to an external wire by a screw 6. Specifically, the wiring terminal 3 includes a wire connecting portion 31 and a wiring board connecting portion 32, the wire connecting portion 31 is provided with a screw hole so as to be screwed with the screw 6, the wiring board connecting portion 32 is provided at one end of the wire connecting portion 31 and passes through the first through hole of the socket housing 1 downward, and the bottom end thereof constitutes one end of the wiring terminal 3 so as to be inserted and welded to the first insertion hole 51. The circuit board connecting portion 32 is a long rod body, the other end of the wire connecting portion 31 is provided with a short rod body 33 extending downwards, and the short rod body 33 is used for being clamped at the top of the socket housing 1 so as to position the wiring terminal 3 on the socket housing 1.

As a preferred manner, the inner top surface of the socket housing 1 extends downward below each second through hole 11 to form a sheath 12, and the clip spring 4 penetrates downward through the sheath 12. The utility model adopts a single multilayer circuit board 5 to replace a plurality of circuit boards in the prior art, so that the length of the clamp spring 4 is longer, and the stability of the assembly of the clamp spring 4 can be improved under the protection and the guidance of the sheath 12. The top of the socket shell is provided with a sinking groove 13 which is communicated with the second through holes 11 and corresponds to the upper part of each second through hole 11, and two clamping pieces 41 at the top of the clamping spring 4 are respectively positioned in the sinking groove 13 so as to limit the opening angle of the two clamping pieces 41 by utilizing the sinking groove 13.

The bottom of the cover plate 2 is provided with a chute 21 slidably engaged with the guide rail, and the chute 21 is penetrating in the width direction of the cover plate 2. The utility model further comprises a locking block 8, wherein the locking block 8 is movably arranged on the cover plate 2 and is used for fixing the cover plate 2 on a guide rail. The number of the locking blocks 8 can be one or two, and the locking blocks 8 are slidably arranged along the length direction of the cover plate 2 and positioned on any side of the chute 21 in the length direction of the cover plate 2.

The relay socket can realize six groups of conversion functions of a relay, adopts a single multilayer circuit board 5 to replace a plurality of circuit boards in the prior art, and intensively distributes all conductive circuits on the multilayer circuit board 5, so that the number of the circuit boards is simplified into one, the height can be reduced, the occupied space is reduced, and a wiring terminal and a clamping spring are directly connected through the multilayer circuit board 5, so that parts such as welding bridging columns, some electronic components and the like are omitted, the overall structure layout is more compact, the assembly process is greatly simplified, the number of welding spots is greatly reduced, the welding failure rate is greatly reduced, the product performance is improved, and the cost is reduced.

The relay socket of the utility model does not relate to parts (such as the concrete structure of the locking block, the distribution mode of the conductive lines, the insulation mode among the conductive layers and the like) which are the same as or can be realized by adopting the prior art.

The above embodiment is only used for further illustrating a relay socket according to the present utility model, but the present utility model is not limited to the embodiment, and any simple modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present utility model falls within the protection scope of the technical solution of the present utility model.

Claims (10)

1. A relay socket comprises a socket body and a plurality of groups of terminal assemblies arranged in the socket body, wherein each group of terminal assemblies respectively comprises a wiring terminal and a clamping spring; the method is characterized in that: the socket further comprises a multi-layer circuit board which is arranged in the socket body and comprises a plurality of mutually insulated conductive layers, wherein each conductive layer comprises one or more mutually insulated conductive circuits; the connecting terminals and the clamping springs of each group of terminal assemblies are respectively and electrically connected with the same conductive line, and the terminal assemblies of different groups correspond to different conductive lines.

2. The relay socket according to claim 1, wherein: the multi-layer circuit board is provided with first jacks corresponding to each binding post respectively, the multi-layer circuit board is provided with second jacks corresponding to each clamping spring respectively, one ends of binding posts of each group of terminal assemblies are spliced and welded to the corresponding first jacks respectively, and one ends of clamping springs of each group of terminal assemblies are spliced and welded to the corresponding second jacks respectively.

3. The relay socket according to claim 1, wherein: first isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the connecting terminals correspond to and are adjacent to the coil part and the load part of the relay.

4. A relay socket according to claim 3, wherein: the first isolation structure comprises a first isolation hole arranged on the multilayer circuit board; the first isolation structure further comprises a retaining wall arranged on the socket body, the retaining wall penetrates through the first isolation hole upwards or downwards, and the top end of the retaining wall is higher than the top surface of the multilayer circuit board.

5. The relay socket according to claim 1, wherein: and second isolation structures are respectively arranged between the connecting terminals and/or between the clamping springs and/or between the connecting terminals and the clamping springs, wherein the second isolation structures correspond to different groups of loads of the relay and are adjacent to the connecting terminals and/or between the clamping springs.

6. The relay socket according to claim 5, wherein: the second isolation structure comprises a second isolation hole arranged on the multilayer circuit board.

7. The relay socket according to claim 2, wherein: the first jacks formed by the multilayer circuit board are arranged at the edge of the multilayer circuit board at intervals along the periphery of the multilayer circuit board, and the second jacks formed by the multilayer circuit board are arranged in a mode of multiple rows and multiple columns.

8. The relay socket according to claim 1, wherein: each electronic component on the multilayer circuit board is arranged on the multilayer circuit board by adopting a surface mount technology; the clamping springs are of axisymmetric structures; the wiring terminal is connected with an external wire by adopting a screw.

9. The relay socket according to any one of claims 1-8, wherein: the socket body comprises a socket shell and a cover plate arranged at the bottom of the socket shell, cavities for accommodating the multiple groups of terminal assemblies and the multilayer circuit board are formed by enclosing the socket shell and the cover plate, first through holes for the downward passing of the terminal blocks are respectively formed in the top of the socket shell corresponding to each terminal block, and second through holes for the downward passing of the clamp springs are respectively formed in the top of the socket shell corresponding to each clamp spring.

10. The relay socket according to claim 9, wherein: the inner top surface of the socket shell is respectively and downwards extended with a sheath corresponding to the lower part of each second through hole, and the clamp spring downwards penetrates through the sheath.