Main control board optocoupler protection circuit

Abstract

The utility model discloses a main control board optocoupler protection circuit comprising an installation box body, the top of the installation box body is provided with a top cover, the top of the top cover is fixedly provided with a handle, and two sides of the bottom of the inner cavity of the installation box body are fixedly provided with support blocks. According to the utility model, air in the mounting box body is exhausted under the action of the heat dissipation motor, and meanwhile, external air enters the mounting box body through the filter box and the cooling pipe, so that airflow is formed in the mounting box body, and the heat dissipation effect on the main control board body is further improved; air passing through the interior of the cooling pipe is cooled under the action of cooling liquid in the cooling box, so that the air entering the interior of the mounting box body is cooled, the heat dissipation effect on the main control board body is improved, and meanwhile, the problem that an existing main control board for the optocoupler protection circuit can generate heat during use, and the service life of the main control board is prolonged is solved. The heat can be discharged into the air around the main control board, so that the use temperature of the main control board is higher, and the heat dissipation effect of the main control board is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of main control boards, in particular to an optical coupling protection circuit of a main control board. Background Art

[0002] The photocoupler is an electrical-optical-electrical conversion device that uses light as a medium to transmit electrical signals. It consists of two parts: a light source and a light receiver. The light source and the light receiver are assembled in the same sealed housing and isolated from each other by a transparent insulator. The pin of the light source is the input end, and the pin of the light receiver is the output end. The common light source is a light emitting diode, and the light receiver is a photosensitive diode, a phototransistor, etc.

[0003] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing main control board used for the optocoupler protection circuit will generate heat when in use, and the heat will be discharged into the air around the main control board, which still causes the main control board to have a high operating temperature and reduces the heat dissipation effect of the main control board; therefore, a main control board optocoupler protection circuit is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a main control board optical coupling protection circuit, which has the advantage of improving the heat dissipation effect of the main control board, and solves the problem that the main control board used for the existing optical coupling protection circuit generates heat when in use, and the heat is discharged into the air around the main control board, which still causes the main control board to have a high operating temperature and reduces the heat dissipation effect of the main control board.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a main control board optocoupler protection circuit, comprising an installation box body, a top cover is arranged on the top of the installation box body, a handle is fixedly installed on the top of the top cover, support blocks are fixedly installed on both sides of the bottom of the inner cavity of the installation box body, the main control board body is arranged on the top of the support block, a connecting groove is opened on the left side of the bottom of the installation box body, an exhaust pipe is connected to the left side of the bottom of the installation box body and located at the bottom of the connecting groove, a heat dissipation motor is arranged inside the exhaust pipe, fan blades are arranged on both sides of the output end of the heat dissipation motor, a filter box and a cooling box are fixedly installed on the bottom of the installation box body, the filter box is located on the left side of the cooling box, the right side of the filter box is connected to a cooling pipe, one side of the cooling pipe passes through the cooling box and is connected to the right side of the installation box body.

[0006] The effects achieved by the above components are as follows: the installation box body is conveniently opened and closed by arranging the top cover and the handle, thereby facilitating the installation of the main control board body inside the installation box body or removing the main control board body from the inside of the installation box body, facilitating the maintenance of the main control board body, and the air inside the installation box body is discharged under the action of the heat dissipation motor, while the external air enters the inside of the installation box body through the filter box and the cooling pipe, so that airflow is formed inside the installation box body, thereby improving the heat dissipation effect of the main control board body, and when the air passes through the inside of the filter box, the coarse filter and the fine filter filter the impurities and dust in the air, which can effectively prevent the impurities and dust from entering the inside of the installation box body and avoid affecting the main control board body, and the air passing through the inside of the cooling pipe is cooled under the action of the coolant inside the cooling box, so that the air entering the inside of the installation box body is cooled, thereby improving the heat dissipation effect of the main control board body.

[0007] Preferably, a coarse filter and a fine filter are provided inside the filter box, and the coarse filter is located on the left side of the fine filter.

[0008] The effect achieved by the above components is: by setting a coarse filter and a fine filter to cooperate with each other to filter impurities and dust entering the air inside the cooling pipe, prevent impurities and dust from entering the interior of the installation box, and prevent impurities and dust from affecting the cooling effect of the cooling pipe.

[0009] Preferably, the cooling pipes are distributed in a serpentine shape inside the cooling box.

[0010] The effect achieved by the above components is: by setting the cooling pipe in a snake shape inside the cooling box to increase the contact area between the cooling pipe and the coolant inside the cooling box, thereby improving the cooling effect of the coolant on the air inside the cooling pipe, and thereby improving the heat dissipation effect of the main control board body.

[0011] Preferably, a sealing groove is provided at the top of the installation box body, and a sealing strip is provided at the bottom of the top cover, and the sealing strip is located inside the sealing groove.

[0012] The effect achieved by the above components is: by setting the sealing groove and the sealing strip to cooperate with each other to improve the sealing inside the installation box, thereby preventing dust from entering the inside of the installation box and affecting the main control board body.

[0013] Preferably, a mounting thread groove is provided on the top of the support block, mounting bolts are provided on both sides of the top of the main control board body, the bottom of the mounting bolts passes through the main control board body and extends to the inside of the mounting thread groove, and the mounting bolts are threadedly connected to the mounting thread groove.

[0014] The effect achieved by the above components is: by arranging the mounting bolts and the mounting thread grooves to cooperate with each other for positioning and mounting the main control board body, the installation stability of the main control board body inside the installation box is improved.

[0015] Preferably, connecting rods are fixedly mounted on both sides of the inner wall of the exhaust pipe, and the other side of the connecting rods is fixedly connected to the surface of the heat dissipation motor.

[0016] The effect achieved by the above components is: by arranging the connecting rod to install and fix the heat dissipation motor, the use stability of the heat dissipation motor is improved.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model provides a top cover and a handle to facilitate opening and closing of the installation box body, thereby facilitating installation of the main control board body inside the installation box body or removing the main control board body from the inside of the installation box body, and facilitating maintenance of the main control board body. Under the action of the heat dissipation motor, the air inside the installation box body is discharged, and at the same time, the external air enters the inside of the installation box body through the filter box and the cooling pipe, so that an air flow is formed inside the installation box body, thereby improving the heat dissipation effect of the main control board body. When the air passes through the inside of the filter box, the coarse filter and the fine filter filter the impurities and dust in the air, which can effectively prevent the impurities and dust from entering the inside of the installation box body and avoid affecting the main control board body. Under the action of the coolant inside the cooling box, the air passing through the inside of the cooling pipe is cooled, so that the air entering the inside of the installation box body is cooled, thereby improving the heat dissipation effect of the main control board body. At the same time, it solves the problem that the main control board used for the existing optocoupler protection circuit generates heat when in use, and the heat is discharged to the air around the main control board, which still causes the main control board to have a high operating temperature and reduces the heat dissipation effect of the main control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation box of the utility model;

[0022] Figure 4 It is a schematic diagram of the top cover structure of the utility model when viewed from above.

[0023] In the figure: 1. Installation box body; 2. Top cover; 3. Handle; 4. Support block; 5. Main control board body; 6. Installation bolts; 7. Filter box; 8. Coarse filter; 9. Fine filter; 10. Cooling box; 11. Cooling pipe; 12. Connecting groove; 13. Exhaust pipe; 14. Cooling motor; 15. Fan blade; 16. Sealing groove; 17. Sealing strip; 18. Installation thread groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 A main control board optocoupler protection circuit comprises an installation box body 1, a top cover 2 is arranged on the top of the installation box body 1, a handle 3 is fixedly installed on the top of the top cover 2, support blocks 4 are fixedly installed on both sides of the bottom of the inner cavity of the installation box body 1, a main control board body 5 is arranged on the top of the support block 4, a connecting groove 12 is opened on the left side of the bottom of the installation box body 1, an exhaust pipe 13 is connected to the left side of the bottom of the installation box body 1 and located at the bottom of the connecting groove 12, a heat dissipation motor 14 is arranged inside the exhaust pipe 13, and fan blades 15 are arranged on both sides of the output end of the heat dissipation motor 14, a filter box 7 and a cooling box 10 are fixedly installed on the bottom of the installation box body 1, the filter box 7 is located on the left side of the cooling box 10, and the right side of the filter box 7 is connected to the cooling pipe 11, and the forest side of the cooling pipe 11 passes through the cooling box 10 and is connected to the right side of the installation box body 1.

[0026] Specifically, a coarse filter 8 and a fine filter 9 are provided inside the filter box 7 , and the coarse filter 8 is located on the left side of the fine filter 9 .

[0027] The coarse filter 8 and the fine filter 9 cooperate with each other to filter impurities and dust entering the air inside the cooling pipe 11, prevent the impurities and dust from entering the interior of the installation box 1, and prevent the impurities and dust from affecting the cooling effect of the cooling pipe 11.

[0028] Specifically, the cooling pipes 11 are distributed in a serpentine shape inside the cooling box 10 .

[0029] The cooling pipe 11 is arranged in a snake shape inside the cooling box 10 to increase the contact area between the cooling pipe 11 and the coolant inside the cooling box 10, thereby improving the cooling effect of the coolant on the air inside the cooling pipe 11, thereby improving the heat dissipation effect on the main control board body 5.

[0030] Specifically, a sealing groove 16 is formed on the top of the installation box body 1 , and a sealing strip 17 is formed on the bottom of the top cover 2 . The sealing strip 17 is located inside the sealing groove 16 .

[0031] The sealing groove 16 and the sealing strip 17 cooperate with each other to improve the sealing performance inside the installation box body 1 , thereby preventing dust from entering the interior of the installation box body 1 and affecting the main control board body 5 .

[0032] Specifically, a mounting thread groove 18 is opened on the top of the support block 4, and mounting bolts 6 are arranged on both sides of the top of the main control board body 5. The bottom of the mounting bolts 6 penetrates the main control board body 5 and extends to the inside of the mounting thread groove 18, and the mounting bolts 6 are threadedly connected to the mounting thread groove 18.

[0033] The mounting bolts 6 and the mounting thread grooves 18 cooperate with each other to position and install the main control board body 5 , thereby improving the installation stability of the main control board body 5 inside the installation box 1 .

[0034] Specifically, connecting rods are fixedly installed on both sides of the inner wall of the exhaust pipe 13 , and the other side of the connecting rods is fixedly connected to the surface of the heat dissipation motor 14 .

[0035] The connecting rod is used to install and fix the heat dissipation motor 14 to improve the use stability of the heat dissipation motor 14.

[0036] When in use, the top cover 2 and the handle 3 are convenient for opening and closing the installation box body 1, and then the main control board body 5 is conveniently installed in the interior of the installation box body 1 or the main control board body 5 is removed from the interior of the installation box body 1, which is convenient for repairing the main control board body 5. Under the action of the heat dissipation motor 14, the air inside the installation box body 1 is discharged, and at the same time, the external air enters the interior of the installation box body 1 through the filter box 7 and the cooling pipe 11, so that airflow is formed inside the installation box body 1, thereby improving the heat dissipation effect of the main control board body 5. When the air passes through the inside of the filter box 7, the coarse filter 8 and the fine filter 9 filter impurities and dust in the air, which can effectively prevent impurities and dust from entering the interior of the installation box body 1 and avoid affecting the main control board body 5. Under the action of the coolant in the cooling box 10, the air passing through the cooling pipe 11 is cooled, so that the air entering the interior of the installation box body 1 is cooled, thereby improving the heat dissipation effect of the main control board body 5.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main control board optical coupler protection circuit, comprising a mounting box (1), characterized in that: A top cover (2) is arranged on the top of the installation box body (1), a handle (3) is fixedly installed on the top of the top cover (2), support blocks (4) are fixedly installed on both sides of the bottom of the inner cavity of the installation box body (1), a main control board body (5) is arranged on the top of the support blocks (4), a connecting groove (12) is opened on the left side of the bottom of the installation box body (1), an exhaust pipe (13) is connected to the left side of the bottom of the installation box body (1) and located at the bottom of the connecting groove (12), a heat dissipation motor (14) is arranged inside the exhaust pipe (13), and fan blades (15) are arranged on both sides of the output end of the heat dissipation motor (14), a filter box (7) and a cooling box (10) are fixedly installed on the bottom of the installation box body (1), the filter box (7) is located on the left side of the cooling box (10), the right side of the filter box (7) is connected to a cooling pipe (11), and one side of the cooling pipe (11) passes through the cooling box (10) and is connected to the right side of the installation box body (1).

2. A main control board optical coupler protection circuit according to claim 1, characterized in that: A coarse filter (8) and a fine filter (9) are arranged inside the filter box (7), and the coarse filter (8) is located on the left side of the fine filter (9).

3. The main control board optical coupler protection circuit according to claim 1 is characterized in that: The cooling pipes (11) are distributed in a serpentine shape inside the cooling box (10).

4. A main control board optical coupler protection circuit according to claim 1, characterized in that: A sealing groove (16) is provided on the top of the installation box body (1), and a sealing strip (17) is provided on the bottom of the top cover (2), wherein the sealing strip (17) is located inside the sealing groove (16).

5. The main control board optical coupler protection circuit according to claim 1 is characterized in that: The top of the support block (4) is provided with a mounting thread groove (18), and both sides of the top of the main control board body (5) are provided with mounting bolts (6), the bottom of the mounting bolts (6) penetrates the main control board body (5) and extends to the inside of the mounting thread groove (18), and the mounting bolts (6) are threadedly connected to the mounting thread groove (18).

6. A main control board optical coupler protection circuit according to claim 1, characterized in that: Connecting rods are fixedly mounted on both sides of the inner wall of the exhaust pipe (13), and the other side of the connecting rods is fixedly connected to the surface of the heat dissipation motor (14).

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