CN219534412U - Safety relay capable of long-time use - Google Patents

Abstract

The utility model relates to a safety relay capable of being used for a long time, which comprises a relay shell and a transparent protective cover, wherein the transparent protective cover is hinged to one side surface of the relay shell, mounting grooves are formed in two sides of the upper surface and the lower surface of the relay shell, mounting screw holes are formed in the surfaces of the mounting grooves in a penetrating manner, motor boxes are fixedly connected to two sides of the lower end of the inner part of the relay shell through connecting blocks, motors are arranged in the motor boxes, one end of each motor is in transmission connection with a heat dissipation fan, and dust screens are arranged at two ends of the lower surface of the relay shell.

Description

Safety relay capable of long-time use

Technical Field

The utility model relates to the technical field of relays, in particular to a safety relay capable of being used for a long time.

Background

A relay (english name) is an electric control device, and is an electric appliance that generates a predetermined step change in a controlled variable in an electric output circuit when a change in an input variable (excitation variable) reaches a predetermined requirement. It has an interactive relationship between the control system (also called input loop) and the controlled system (also called output loop). It is commonly used in automated control circuits and is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like.

At present, after the relay is used for a long time, the surface temperature of an internal circuit of the relay is too high due to long-time electrifying, and if the internal circuit of the relay is not timely cooled, the normal use of the safety relay is easily affected.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a safety relay that can be used for a long time.

In order to achieve the above purpose, the utility model provides a safety relay capable of being used for a long time, which comprises a relay shell and a transparent protective cover, wherein one side surface of the relay shell is hinged with the transparent protective cover, mounting grooves are formed in two sides of the upper surface and the lower surface of the relay shell, mounting screw holes are formed in the surfaces of the mounting grooves in a penetrating mode, a motor box is fixedly connected to two sides of the inner lower end of the relay shell through a connecting block, a motor is arranged in the motor box, one end of the motor is in transmission connection with a heat dissipation fan, dust screens are arranged at two ends of the lower surface of the relay shell, clamping grooves are formed in one side surface of the relay shell, clamping blocks are connected to one side surface of the transparent protective cover in a rotating mode through a rotating shaft, and reset springs are arranged at two ends of the surface of the rotating shaft.

Preferably, the innermost layer of the internal material of the relay shell is provided with a matrix layer, the outer side of the matrix layer is provided with an insulating layer, and the inside of the insulating layer is made of insulating rubber.

Preferably, a flame-retardant layer is arranged on the outer side of the insulating layer, and asbestos fiber materials are arranged in the flame-retardant layer.

Preferably, a waterproof layer is arranged on the outer side of the flame retardant layer, and the waterproof layer is made of high-molecular polymer materials.

Preferably, a temperature sensor is mounted on one surface of the inside of the relay case.

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

through the radiator fan that sets up, when monitoring the inside high temperature of safety relay during the use, timely drive the radiator fan through the motor and rotate to give off the external world through dust screen department with the inside higher heat air of relay, prevent the inside high temperature of relay and influence the use of relay, avoided present relay after long-time use effectively, relay inner circuit can cause surface temperature too high owing to long-time circular telegram, if untimely to its cooling treatment, influence the problem of the normal use of safety relay easily, make safety relay use for a long time.

Through the dust screen that sets up, volatilize away through the dust screen so that with the inside heat of relay on the one hand, on the other hand prevents that external dust from getting into the inside of relay through the thermovent, leads to the inside problem that is difficult to the clearance of relay, through the transparent protective cover that sets up, can be through the clear condition of observing safety relay internal circuit of transparent protective cover during the use.

Through fixture block and the draw-in groove that sets up, through the inside of fixture block card at the draw-in groove, thereby realize the locking to transparent protective cover, through the reset spring who sets up, apply an external force to the fixture block in order to apply through reset spring, make the fixture block by the card in the inside of draw-in groove, waterproof layer through setting up, the waterproof performance of relay has been increased, fire-retardant layer through setting up, the fire-retardant performance of relay has been increased, through the insulating layer of setting up, the effectual danger that can not take place the electric shock when having guaranteed the staff and touching the relay shell.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments of the present utility model, it being apparent that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without the exercise of inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a safety relay capable of being used for a long time.

Fig. 2 is a schematic structural view of a rotating shaft in a safety relay which can be used for a long time.

Fig. 3 is a schematic diagram of a heat dissipation fan in a safety relay that can be used for a long time.

Fig. 4 is a schematic diagram of a material of a relay case of a safety relay capable of being used for a long time.

Reference numerals illustrate:

1. a relay housing; 2. a transparent protective cover; 3. a rotating shaft; 4. a clamping block; 5. a clamping groove; 6. a return spring; 7. a mounting groove; 8. installing a screw hole; 9. a connecting block; 10. a motor case; 11. a motor; 12. a heat radiation fan; 13. a dust screen; 14. a waterproof layer; 15. a flame retardant layer; 16. an insulating layer; 17. a matrix layer.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Referring to fig. 1-4, the utility model provides a safety relay capable of being used for a long time, comprising a relay housing 1 and a transparent protective cover 2, wherein when the surface of one side of the relay housing 1 is hinged with the transparent protective cover 2, both sides of the upper surface and the lower surface of the relay housing 1 are respectively provided with a mounting groove 7, the surface of each mounting groove 7 is penetrated and provided with a mounting screw hole 8, both sides of the inner lower end of the relay housing 1 are fixedly connected with a motor box 10 through a connecting block 9, a motor 11 is arranged in the motor box 10, one end of the motor 11 is in transmission connection with a heat dissipation fan 12, both ends of the lower surface of the relay housing 1 are respectively provided with a dustproof net 13, and when the temperature of the inside of the safety relay is detected to be too high, the heat dissipation fan 12 is driven to rotate through the motor 11 in time, so that the air with higher heat inside the relay is emitted to the outside through the dustproof nets 13, the use of the relay is prevented from being influenced by the too high temperature inside the relay, the inside is effectively avoided, the problem that the inside of the relay is too high temperature is caused by long-time electrifying after the relay is used for a long time, if the inside is difficult to be prevented from being cleared up through the inside the transparent protective cover 13, and the inside the safety relay is difficult to be cleared through the transparent protective cover 13 when the inside the safety relay is not normally arranged, and the safety relay is difficult to be cleared through the inside the safety protective cover through the safety protective cover when the safety relay is arranged.

Referring to fig. 1, a clamping groove 5 is formed on one side surface of a relay housing 1.

Referring to fig. 2, a clamping block 4 is rotatably connected to one side surface of the transparent protective cover 2 through a rotating shaft 3, reset springs 6 are respectively arranged at two ends of the surface of the rotating shaft 3, and the clamping block 4 and the clamping groove 5 are arranged through the clamping block 4 and clamped in the clamping groove 5, so that the transparent protective cover 2 is locked, and an external force is applied to the clamping block 4 through the reset springs 6, so that the clamping block 4 is clamped in the clamping groove 5.

Referring to fig. 4, the innermost layer of the internal material of the relay housing 1 is provided with a matrix layer 17, the outer side of the matrix layer 17 is provided with an insulating layer 16, the inner side of the insulating layer 16 is made of insulating rubber, the outer side of the insulating layer 16 is provided with a flame retardant layer 15, the inner side of the flame retardant layer 15 is made of asbestos fiber, the outer side of the flame retardant layer 15 is provided with a waterproof layer 14, the inner side of the waterproof layer 14 is made of high polymer, the waterproof performance of the relay is improved through the waterproof layer 14, the flame retardant performance of the relay is improved through the flame retardant layer 15, and the danger of electric shock can not occur when workers touch the relay housing 1 through the insulating layer 16.

A temperature sensor is mounted on one inner side surface of the relay case 1.

During the use, through the cooling fan 12 who sets up, when monitoring the inside high temperature of safety relay during the use, timely drive cooling fan 12 through motor 11 rotates, thereby the inside higher thermal air of relay distributes to the external world through dust screen 13 departments, prevent the inside high use that influences the relay of relay, avoided the present relay effectively after long-time use, relay inner circuit can cause surface temperature too high owing to long-time circular telegram, if untimely carries out the cooling to it and handles, the problem of the normal use of safety relay is influenced easily, make safety relay can use for a long time, through the dust screen 13 of setting, on the one hand through dust screen 13 so that volatilizees the inside heat of relay, on the other hand prevent that external dust from getting into the inside of relay through the thermovent, the inside problem that is difficult to clear of relay, through the transparent protection cover 2 of setting, can be through the clear condition of observing safety relay inner circuit of transparent protection cover 2, through fixture block 4 and draw-in groove 5 of setting up, thereby realize through the inside of fixture block 4 card in groove 5, realize setting up the protection cover to the protection cover, through setting up the fire-retardant layer through the 6 of the protection cover, the setting up the fire-retardant layer of protection cover, the fire-retardant protection cover is applied to the protection cover is 16, the setting up the fire-retardant outer cover is through the protection cover is through the setting up the protection cover is applied to the protection cover is 1, the fire-retardant layer is used to be applied to the protection cover is in the setting up, the safety relay is convenient for the safety relay is easy, the safety relay is convenient to be used, and has high performance is easy, and can be increased and has high performance, and can be easily has high performance and is easy and has high performance.

The foregoing is merely illustrative of the present utility model and is not to be construed as limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; all equivalent structures or equivalent flow changes made by the specification and the attached drawings of the utility model or directly or indirectly applied to other related technical fields are included in the protection scope of the utility model.

Claims (5)

1. A safety relay capable of being used for a long time, which is characterized in that: including relay shell and transparent protective cover, one side surface of relay shell articulates there is transparent protective cover, the mounting groove has all been seted up to relay shell's upper and lower surface both sides, the surface of mounting groove runs through and has seted up the installation screw, relay shell's inside lower extreme both sides all are provided with the motor case through connecting block fixedly connected with, the inside of motor case is provided with the motor, the one end transmission of motor is connected with radiator fan, the dust screen is all installed at relay shell's lower surface both ends, the draw-in groove has been seted up to relay shell's one side surface, one side surface of transparent protective cover is connected with the fixture block through the axis of rotation, the surface both ends of axis of rotation all are provided with reset spring.

2. A safety relay for long-term use according to claim 1, wherein: the inner most layer of the internal material of the relay shell is provided with a matrix layer, the outer side of the matrix layer is provided with an insulating layer, and the inside of the insulating layer is made of insulating rubber.

3. A safety relay for long-term use according to claim 2, wherein: the outside of insulating layer is provided with fire-retardant layer, fire-retardant layer's inside is asbestos fibre material.

4. A safety relay for long-term use according to claim 3, wherein: the waterproof layer is arranged on the outer side of the flame-retardant layer, and the waterproof layer is made of high-molecular polymer materials.

5. A safety relay for long-term use according to claim 1, wherein: and a temperature sensor is arranged on one side surface of the inside of the relay shell.