Large-current heat dissipation solid-state relay

Abstract

The utility model belongs to the technical field of solid-state relays, and particularly relates to a large-current heat-dissipation solid-state relay, which comprises a solid-state relay main body, a control circuit board is mounted in the solid-state relay main body, and a load input terminal, a load output terminal and a control signal terminal are electrically connected onto the control circuit board. A fuse is electrically connected between the load input terminal and the load output terminal, and the control circuit board is electrically connected with a control signal indicating lamp. According to the utility model, the threaded column is rotated to drive the sliding seat to slide so as to open or close the accommodating groove, the sliding seat is opened through outward sliding, the installation of the lead and the binding post module is completed, and after the installation is completed, the sliding seat is pushed into the accommodating groove for protection, thereby effectively preventing the electric shock at the wiring position.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid state relay technical field, concretely is a kind of large current heat dissipation solid state relay. BACKGROUND

[0002] The anti-electric shock structure of existing solid state relay is mostly composed of shell and protective cover, so when wiring, protective cover needs to be removed, and after wiring, cover is put back, so it is not easy to operate, and protective cover is easy to lose or customer forgets to put back protective cover after wiring, so it can cause electric shock.

[0003] The existing Chinese patent with announcement number CN204809070U discloses a kind of solid state relay with radiator, it includes the solid state relay of the terminal post being set on upper end surface, and radiator, the solid state relay is located above radiator and is connected as a whole with radiator;The solid state relay is provided with anti-electric shock structure, and the anti-electric shock structure includes the shell of solid state relay and the cover of corresponding terminal post position, the cover is buckled on terminal post and is hinged with shell.In the utility model, the structure of solid state relay and radiator integration, find the corresponding specification radiator of user or can not add radiator and lead to product over-temperature failure problem, product whole is also more beautiful;And anti-electric shock structure prevents foreign matter from entering shell and prevents finger from touching shell inner electrified part.

[0004] For above-mentioned and existing related technology, inventor considers that the following defects exist often: the top of the cover of the device is reserved with the opening for power line to pass through, and when the inner diameter of opening and electric wire do not match, the sealing dustproof waterproof effect of cover is affected, need to be improved;Therefore, aiming at the above-mentioned problem, a kind of large current heat dissipation solid state relay is provided. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiency of prior art, solve the technical problems proposed above, the utility model provides a kind of large current heat dissipation solid state relay.

[0006] The utility model solves its technical problem adopts the technical scheme that the utility model discloses a kind of high current heat dissipation solid-state relay, including solid-state relay main body, control circuit board is installed in the inside of solid-state relay main body, load input terminal, load output terminal and control signal terminal are electrically connected on the control circuit board, load input terminal and load output terminal are electrically connected with fuse between, and control signal indicating lamp is electrically connected on the control circuit board, control signal indicating lamp is electrically connected with control signal terminal, mutual inductor is installed in the inside of solid-state relay main body, mutual inductor is electrically connected between fuse and load output terminal, and mutual inductor is electrically connected with load indicating lamp, load indicating lamp is also electrically connected with control circuit board, load input terminal and load output terminal are electrically connected with corresponding terminal post module respectively, the bottom of solid-state relay main body is fixedly connected with radiator, the side wall of solid-state relay main body is equipped with a plurality of storage grooves, protective assembly is installed on the storage groove, the protective assembly includes sliding seat, the sliding seat is slidably installed in storage groove, terminal post module is installed on the top of sliding seat, threaded column is rotatably connected to the bottom of sliding seat, threaded slot is set up in the side wall of solid-state relay main body corresponding threaded column, threaded column is threadedly connected with threaded slot, and the heat dissipation requirement of the solid-state relay main body of high current load is satisfied by radiator.

[0007] When using, the sliding seat is driven to slide by rotating threaded column, to open or close the storage groove, the sliding seat is opened by sliding outward, the installation of wire and terminal post module is completed, after installation, the sliding seat is pushed into the storage groove for protection, to effectively prevent electric shock at wiring, and effectively avoid the entry of dust and external liquid.

[0008] Preferably, sealing pad is fixedly connected at the slot opening of the storage groove, the sealing effect at the intersection of storage groove and sliding seat is improved by the sliding seat abutting against the sealing pad.

[0009] Preferably, threaded hole is set up in the side wall of the sliding seat, and the threaded hole is used for connecting the wire passing through the sliding seat and the terminal post module.

[0010] Preferably, sealing assembly is installed on the sliding seat, the sealing assembly includes annular sealing air bag, the sealing air bag is fixedly installed in the inside of threaded hole, the sealing air bag is tightly attached to the wire by passing the wire through the sealing air bag, to improve the sealing and protection effect at the threaded hole, compared with prior art, effectively prevent the entry of dust and external liquid.

[0011] Preferably, the sealing assembly further includes a housing, the housing is fixedly installed on the outer wall of the sliding seat, the upper inner wall of the housing is fixedly connected with compression air bag, the compression air bag is connected with the sealing air bag through pipeline, and the pipeline penetrates the housing.

[0012] Preferably, the inside of the shell is slidingly connected with an extrusion plate, and the bottom end of the compression air bag is fixedly connected with the extrusion plate, the outer wall of the shell is fixedly connected with a cover plate, the extrusion plate slides upward by the spring and extrudes the compression air bag, so that the gas in the compression air bag enters the sealed air bag to make it expand and fit the wire, when the wire needs to be installed, the extrusion plate is pushed downward, the gas in the sealed air bag is sucked into the compression air bag through the pipeline, and then the sealed air bag is contracted, so that the wire is conveniently passed through.

[0013] Preferably, the surface of the cover plate is provided with an opening, and the extrusion plate extends to the outside through the opening.

[0014] Preferably, the bottom of the extrusion plate is fixedly connected with a spring, and the bottom end of the spring is fixedly installed at the bottom of the shell.

[0015] The utility model discloses the beneficial effect lies in:

[0016] 1. The utility model discloses a sliding seat is driven to slide through the rotation threaded column, and then opens or closes the storage groove, and the sliding seat is opened by sliding outward, and the installation of wire and binding post module is completed, after installation, the sliding seat is pushed to the storage groove and is protected, and the electric shock of wiring is effectively prevented.

[0017] 2. The utility model discloses the wire is passed through the sealed air bag, and the sealed air bag is closely fitted to the wire, improves the sealing protection effect of threading port, compares with prior art, and the entry of dust and external liquid is effectively prevented. ACCURACY

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without the creative labor.

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the expansion structure schematic diagram of the utility model protection assembly;

[0021] Figure 3 It is the A structure schematic diagram of the utility model; Figure 2

[0022] Figure 4 It is the sealed assembly structure schematic diagram of the utility model;

[0023] Figure 5 ​The utility model discloses a cover plate unfolding structure schematic diagram.

[0024] In the drawing: 1, solid state relay main body;2, radiator;3, storage groove;4, protection assembly;41, sliding seat;42, threaded column;43, threading port;5, wiring post module;6, sealing gasket;7, sealing assembly;71, sealing air bag;72, shell;73, compressed air bag;74, extrusion plate;75, opening;76, spring;77, cover plate. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0026] Embodiment one

[0027] Please refer to Figures 1-3 As shown in the drawing, a kind of high current heat dissipation solid state relay, including solid state relay main body 1, control circuit board is installed in the inside of solid state relay main body 1, load input terminal, load output terminal and control signal terminal are electrically connected on control circuit board, load input terminal and load output terminal are electrically connected with fuse between, and control signal indicating lamp is electrically connected on control circuit board, control signal indicating lamp is electrically connected with control signal terminal, mutual inductor is installed in the inside of solid state relay main body 1, mutual inductor is electrically connected between fuse and load output terminal, and mutual inductor is electrically connected with load indicating lamp, load indicating lamp is also electrically connected with control circuit board, load input terminal and load output terminal are respectively electrically connected with corresponding wiring post module 5, the bottom of solid state relay main body 1 is fixedly connected with radiator 2, the side wall of solid state relay main body 1 is provided with a plurality of storage grooves 3, protection assembly 4 is installed on storage groove 3, protection assembly 4 includes sliding seat 41, sliding seat 41 is slidably installed in storage groove 3, wiring post module 5 is installed above sliding seat 41, threaded column 42 is rotatably connected to the bottom of sliding seat 41, the side wall of solid state relay main body 1 is provided with threaded groove corresponding to threaded column 42, threaded column 42 is screw connected with threaded groove, and the heat dissipation requirement of solid state relay main body 1 of high current load is satisfied by radiator 2.

[0028] When using, sliding seat 41 is driven to slide by rotating threaded column 42, to open or close storage groove 3, sliding seat 41 is slid outward to open, the installation of wire and wiring post module 5 is completed, after installation is completed, sliding seat 41 is pushed into storage groove 3 for protection, effectively prevent electric shock at wiring, and effectively avoid the entry of dust and external liquid.

[0029] The sealing gasket 6 is fixedly connected at the slot opening of the receiving groove 3, and the sliding seat 41 abuts against the sealing gasket 6, so that the sealing effect at the intersection of the receiving groove 3 and the sliding seat 41 is improved.

[0030] The side wall of the sliding seat 41 is provided with a wire passing opening 43, and the wire passing opening 43 is used for connecting the sliding seat 41 and the terminal post module 5.

[0031] Embodiment two

[0032] Comparative embodiment one, please refer to Figures 4-5 The utility model provides another embodiment, the sliding seat 41 is installed with sealing assembly 7, sealing assembly 7 includes annular sealing air bag 71, sealing air bag 71 fixed mounting is in wire passing opening 43's inside, by the wire passing through sealing air bag 71, by sealing air bag 71 tightly adhere to wire, improve the sealing protection effect at wire passing opening 43, compared with prior art, effectively prevent the entry of dust and external liquid.

[0033] Sealing assembly 7 still includes the shell 72, the shell 72 is fixedly installed on the outer wall of sliding seat 41, the upper inner wall of shell 72 is fixedly connected with compression air bag 73, and the compression air bag 73 is connected with the sealing air bag 71 through a pipeline, and the pipeline penetrates the shell 72.

[0034] The inside of shell 72 is slidably connected with extrusion plate 74, the bottom end of compression air bag 73 is fixedly connected with extrusion plate 74, the outer wall of shell 72 is fixedly connected with cover plate 77, extrusion plate 74 slides upward through spring 76, and extrusion plate 74 extrudes compression air bag 73, so that the gas in the compression air bag 73 enters the sealing air bag 71 to make the sealing air bag 71 expand and adhere to the wire, when the wire needs to be installed, the extrusion plate 74 is pushed downward, the gas in the sealing air bag 71 is sucked into the compression air bag 73 through the pipeline, and then the sealing air bag 71 is contracted, so that the wire passes through conveniently.

[0035] The surface of cover plate 77 is provided with an opening 75, and the extrusion plate 74 passes through the opening 75 and extends to the outside.

[0036] The bottom of extrusion plate 74 is fixedly connected with spring 76, and the bottom end of spring 76 is fixedly installed at the bottom of shell 72.

[0037] Working principle, through radiator 2 satisfies the heat dissipation requirement of solid state relay main body 1 of large current load, when using, sliding seat 41 is driven to slide through rotating threaded column 42, and then receiving groove 3 is opened or closed, sliding seat 41 is slid outward to open, the installation of wire and terminal post module 5 is completed, after installation is completed, sliding seat 41 is pushed into receiving groove 3 to protect, effectively prevent electric shock at wiring, and effectively avoid the entry of dust and external liquid.

[0038] The threading hole 43 is used for connecting the wire with the terminal block module 5 through the sliding seat 41, and the wire is tightly fitted by the sealing air bag 71 through passing through the sealing air bag 71, so that the sealing protection effect at the threading hole 43 is improved, and compared with the prior art, the entry of dust and external liquid is effectively prevented.

[0039] In order to facilitate the wire to pass through the sealing air bag 71, the pressing plate 74 is pushed downward, the gas in the sealing air bag 71 is sucked into the compressed air bag 73 through the pipeline, so that the sealing air bag 71 is contracted, and the wire is facilitated to pass through.

[0040] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A high current heat sinking solid state relay comprising a solid state relay body (1) characterized by: The bottom of the solid-state relay body (1) is fixedly connected with a radiator (2), the side wall of the solid-state relay body (1) is provided with a plurality of receiving grooves (3), the receiving groove (3) is provided with a protection assembly (4), the protection assembly (4) comprises a sliding seat (41), the sliding seat (41) is slidably installed in the receiving groove (3), the upper portion of the sliding seat (41) is provided with a terminal post module (5), the bottom of the sliding seat (41) is rotatably connected with a threaded column (42), the side wall of the solid-state relay body (1) is provided with a threaded groove corresponding to the threaded column (42), and the threaded column (42) is threadedly connected with the threaded groove.

2. The high current heat sinking solid state relay of claim 1, wherein: The slot of the receiving groove (3) is fixedly connected with a sealing gasket (6).

3. The high current heat sinking solid state relay of claim 1, wherein: The side wall of the sliding seat (41) is provided with a threading opening (43).

4. The high current heat sinking solid state relay of claim 3, wherein: The sliding seat (41) is provided with a sealing assembly (7), the sealing assembly (7) comprises an annular sealing air bag (71), and the sealing air bag (71) is fixedly installed in the inside of the threading opening (43).

5. The high current heat sinking solid state relay of claim 4, wherein: The sealing assembly (7) further comprises a shell (72), the shell (72) is fixedly installed on the outer wall of the sliding seat (41), the upper inner wall of the shell (72) is fixedly connected with a compression air bag (73), the compression air bag (73) is connected with the sealing air bag (71) through a pipeline, and the pipeline penetrates the shell (72).

6. The high current heat sinking solid state relay of claim 5, wherein: The inside of the shell (72) is slidably connected with an extrusion plate (74), the bottom end of the compression air bag (73) is fixedly connected with the extrusion plate (74), and the outer wall of the shell (72) is fixedly connected with a cover plate (77).

7. The high current heat sinking solid state relay of claim 6, wherein: The surface of the cover plate (77) is provided with an opening (75), and the extrusion plate (74) penetrates the opening (75) and extends to the outside.

8. The high current heat sinking solid state relay of claim 7, wherein: The bottom of the extrusion plate (74) is fixedly connected with a spring (76), and the bottom end of the spring (76) is fixedly installed on the bottom of the shell (72).

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