CN209981117U - An air-cooled solid state relay - Google Patents

Abstract

The utility model belongs to the technical field of relays, in particular to an air-cooled solid state relay, comprising a base, a protective shell is fixedly installed on the top of the base, a solid state relay body is fixedly installed on the top of the base, and the A cooling rack is fixedly installed on both sides, a motor is fixedly installed on the top inner wall of the protective shell, a first bevel gear is fixedly installed on the output shaft of the motor, and a first rotating rod is rotatably installed in the protective shell , a second bevel gear is fixedly mounted on the first rotating rod, and the first bevel gear meshes with the second bevel gear. The utility model has strong practicability, and the heat dissipation effect of the heat dissipation frame on the solid state relay is enhanced by using a fan to dissipate heat. to a certain amount of assistance.

Description

An air-cooled solid state relay

technical field

The utility model relates to the technical field of relays, in particular to an air-cooled solid state relay.

Background technique

The solid state relay is a non-contact switch device composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. It is widely used in circuit control at present. The existing solid-state relay usually includes a relay and a radiator. The radiator is generally composed of metal sheets. Usually, the relay is installed in the radiator. On, the heat conduction and cooling of the relay are carried out through the thermal conductivity of the metal.

However, in the prior art, such a heat dissipation structure is difficult to effectively ensure the heat dissipation effect, and the electronic components in the relay are easily damaged due to high temperature after long-term continuous use, especially some high-power relays. The probability is higher, which in turn affects the service life of the solid state relay. Therefore, an air-cooled solid state relay is proposed.

Utility model content

The purpose of the utility model is to propose an air-cooled solid state relay in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an air-cooled solid state relay, comprising a base, a protective shell is fixedly installed on the top of the base, a solid state relay body is fixedly installed on the top of the base, and the Both sides of the solid state relay body are fixedly installed with heat sinks, a motor is fixedly installed on the top inner wall of the protective casing, a first bevel gear is fixedly installed on the output shaft of the motor, and a rotating installation is installed in the protective casing. A first rotating rod, a second bevel gear is fixedly installed on the first rotating rod, the first bevel gear is meshed with the second bevel gear, and two first bevel gears are fixedly installed on the first rotating rod Gears, two second rotating rods are rotatably installed in the protective shell, the second rotating rods are respectively fixed with a fan blade and a second gear, and the same root is sleeved between the first gear and the second gear A chain, one side of the heat dissipation frame is provided with an air inlet, and the top of the heat dissipation frame is provided with an air outlet.

Preferably, rotating blocks are fixedly installed on both inner walls of the protective shell, grooves are formed on the rotating blocks, and two ends of the first rotating rod respectively extend into the corresponding grooves and are connected with the grooves. Turn the connection.

Preferably, two fixing blocks are fixedly installed on the top of the base, the fixing blocks are provided with rotating holes, and the two second rotating rods are respectively rotatably connected with the corresponding rotating holes.

Preferably, a plurality of first ventilation holes are opened on both inner walls of the protective shell, and first dust nets are fixedly installed on both sides of the protective shell.

Preferably, a plurality of second ventilation holes are opened on the top inner wall of the protective case, a second dust filter is fixedly installed on the top of the protective case, and the model of the relay body is MY2N-J.

Compared with the prior art, the beneficial effects of the present invention are as follows: firstly, the device passes through the cooling frame, the motor, the first bevel gear, the first rotating rod, the second bevel gear, the first gear and the second rotating rod. , The fan blade, the second gear and the chain are matched together. When in use, the motor drives the first bevel gear to rotate through the output shaft, the first bevel gear drives the first rotating rod to rotate through the second bevel gear, and the first rotating rod drives The two first gears rotate, the first gear drives the second gear to rotate through the chain, the second gear drives the fan blade to rotate through the second rotating rod, and the fan blade rotates to drive the airflow to the heat sink, thereby realizing the heat dissipation of the heat sink. ;

The heat dissipation frame can dissipate heat on the solid state relay body due to its thermal conductivity, and the protective net can prevent dust from entering the protective shell, avoiding the dust attaching to the solid state relay body and affecting the heat dissipation of the solid state relay body;

The utility model has strong practicability. By using a fan to dissipate heat from the heat dissipation frame, the heat dissipation effect of the heat dissipation frame on the solid state relay is enhanced. to a certain amount of assistance.

Description of drawings

Fig. 1 is the front view sectional structure schematic diagram of the present utility model;

Fig. 2 is the enlarged structural representation of part A in Fig. 1;

Fig. 3 is an assembly view between the first gear, the second gear and the chain.

In the figure: 1. base; 2. protective case; 3. solid state relay body; 4. cooling frame; 5. motor; 6. first bevel gear; 7. first rotating rod; 8. second bevel gear; 9. The first gear; 10. The second rotating rod; 11, the fan blade; 12, the second gear; 13, the chain; 14, the air inlet; 15, the air outlet.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3 , the present utility model provides a technical solution: an air-cooled solid state relay, comprising a base 1 , a protective shell 2 is fixedly installed on the top of the base 1 , and a solid state relay body is fixedly installed on the top of the base 1 3. The heat sink 4 is fixedly installed on both sides of the solid state relay body 3, the motor 5 is fixedly installed on the top inner wall of the protective shell 2, and the first bevel gear 6 is fixedly installed on the output shaft of the motor 5. Inside the protective shell 2 A first rotating rod 7 is rotatably installed, a second bevel gear 8 is fixedly installed on the first rotating rod 7, the first bevel gear 6 is meshed with the second bevel gear 8, and the first rotating rod 7 is fixedly mounted with two There are two first gears 9, two second rotating rods 10 are rotatably installed in the protective shell 2, and the second rotating rods 10 are respectively fixed with the fan blade 11 and the second gear 12, between the first gear 9 and the second gear 12 The same chain 13 is sleeved, an air inlet 14 is opened on one side of the heat dissipation frame 4, and an air outlet 15 is opened at the top of the heat dissipation frame 4;

A rotating block is fixedly installed on the inner walls of both sides of the protective shell 2, and a groove is formed on the rotating block. The two ends of the first rotating rod 7 respectively extend into the corresponding groove and are connected with the groove in rotation. Two fixed blocks are fixedly installed, and the fixed blocks are provided with rotating holes. The two second rotating rods 10 are respectively connected with the corresponding rotating holes. A first dust net is fixedly installed on both sides of the protective shell 2, a plurality of second ventilation holes are opened on the top inner wall of the protective shell 2, a second dust net is fixedly installed on the top of the protective shell 2, and the relay body 3 The model is MY2N-J, through the cooling frame 4, the motor 5, the first bevel gear 6, the first rotating rod 7, the second bevel gear 8, the first gear 9, the second rotating rod 10, the fan blade 11, the first The second gear 12 cooperates with the chain 13. When in use, the motor 5 drives the first bevel gear 6 to rotate through the output shaft, and the first bevel gear 6 drives the first rotating rod 7 to rotate through the second bevel gear 8. The first rotating The rod 7 drives the two first gears 9 to rotate, the first gear 9 drives the second gear 12 to rotate through the chain 13, the second gear 12 drives the fan blade 11 to rotate through the second rotating rod 10, and the fan blade 11 rotates to drive the airflow to the The heat dissipation frame 4 realizes the heat dissipation of the heat dissipation frame 4, and the heat dissipation frame 4 can dissipate heat to the solid state relay body 3 due to its thermal conductivity, and the protective net can prevent the dust from entering the protective shell 2 and avoid the dust from adhering to the solid state relay body 3. The relay body 3 affects the heat dissipation of the solid state relay body 3. The utility model has strong practicability. By using a fan to dissipate heat to the heat dissipation frame 4, the heat dissipation effect of the heat dissipation frame 4 to the solid state relay is strengthened, and the dustproof net installed at the air vent Not only can it play a role in dust prevention, but also play a certain auxiliary role in heat dissipation.

Working principle: The heat dissipation frame 4 can dissipate heat to the solid state relay body 3 because of its thermal conductivity. When in use, start the motor 5, the motor 5 drives the first bevel gear 6 to rotate through the output shaft, and the first bevel gear 6 passes through the second bevel gear 6. The bevel gear 8 drives the first rotating rod 7 to rotate, the first rotating rod 7 drives the two first gears 9 to rotate, the first gear 9 drives the second gear 12 to rotate through the chain 13 , and the second gear 12 rotates through the second rotating rod 10 Drive the fan blade 11 to rotate, the fan blade 11 drives the airflow to blow to the heat dissipation frame 4 through the rotation, and the air flow enters the heat dissipation frame 4 through the air inlet 14 on the heat dissipation frame 4, clears the heat of the heat dissipation frame 4, and then is discharged through the air outlet 15, Finally, the airflow is discharged through the second vent on the top of the protective case 2 , and circulates back and forth, thereby completing the heat dissipation of the solid state relay body 3 .

It should be noted that the equipment structure and accompanying drawings of the present utility model mainly describe the principle of the present utility model. In the technical aspect of the design principle, the settings of the power mechanism, power supply system and control system of the device are not completely described. On the premise that those skilled in the art understand the principles of the above utility model, they can clearly know the specifics of its power mechanism, power supply system and control system.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. An air-cooled solid state relay, comprising a base (1), characterized in that: a protective shell (2) is fixedly installed on the top of the base (1), and a solid state relay is fixedly installed on the top of the base (1). A body (3), a heat dissipation frame (4) is fixedly installed on both sides of the solid state relay body (3), a motor (5) is fixedly installed on the top inner wall of the protective shell (2), and the motor (5) A first bevel gear (6) is fixedly installed on the output shaft of the Two bevel gears (8), the first bevel gear (6) meshes with the second bevel gear (8), and two first gears (9) are fixedly mounted on the first rotating rod (7). , two second rotating rods (10) are rotatably installed in the protective shell (2), and the second rotating rods (10) are respectively fixed with a fan blade (11) and a second gear (12). The same chain (13) is sleeved between the first gear (9) and the second gear (12), an air inlet (14) is opened on one side of the heat dissipation frame (4), and the heat dissipation frame (4) An air outlet (15) is opened at the top of the . 2. An air-cooled solid state relay according to claim 1, characterized in that: rotating blocks are fixedly installed on both inner walls of the protective shell (2), and grooves are formed on the rotating blocks, Both ends of the first rotating rod (7) respectively extend into the corresponding grooves and are rotatably connected with the grooves. 3 . The air-cooled solid state relay according to claim 1 , wherein two fixing blocks are fixedly installed on the top of the base ( 1 ), the fixing blocks are provided with rotating holes, and the two first The two rotating rods (10) are respectively rotatably connected with the corresponding rotating holes. 4. An air-cooled solid state relay according to claim 1, characterized in that: a plurality of first ventilation holes are opened on both inner walls of the protective shell (2), and the protective shell (2) A first dust filter is fixedly installed on both sides of the device. 5. An air-cooled solid state relay according to claim 1, characterized in that: a plurality of second ventilation holes are opened on the top inner wall of the protective shell (2), and the top of the protective shell (2) is provided with a plurality of second ventilation holes. A second dust filter is fixedly installed, and the model of the relay body (3) is MY2N-J.

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