Overheat protection structure of distribution box

Abstract

The utility model is suitable for the technical field of distribution boxes, and discloses a distribution box overheating protection structure, a guide groove is arranged in the side edge of each guide plate, a protection plate is slidably installed between the side edges of the two groups of guide plates, guide blocks are fixedly installed on the surfaces of the two ends of the outer side of the protection plate, and the guide blocks are slidably inserted in the guide grooves. A first fixing frame and a second fixing frame are fixedly installed on the two sides of the top of the cabinet body respectively, rotating rollers are rotationally installed on the inner sides of the first fixing frame and the second fixing frame, and a traction rope is movably installed between the outer sides of the two sets of rotating rollers. According to the technical scheme of the utility model, the protection plate can vertically move on the right side surface of the cabinet body under the guide sliding action of the guide groove on the guide block and the traction use of the traction rope on the protection plate, so that the positions of the heat dissipation grooves of the protection plate are adjusted, and the positions of the heat dissipation grooves are staggered and overlapped; and therefore, heat in the cabinet body can be discharged, and the cabinet body can be protected and blocked.

Description

Technical Field

[0001] The utility model is applicable to the technical field of distribution boxes, and particularly relates to an overheating protection structure for a distribution box. Background Art

[0002] At present, the distribution box is a low-voltage distribution device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet according to electrical wiring requirements.

[0003] However, when distribution boxes are used outdoors today, the various electrical components inside the box and the high temperature outside can easily cause a large amount of heat to accumulate inside the metal cabinet. To ensure the normal operation of the various electrical components, a large number of heat dissipation slots are opened on the outside of the distribution box to ensure the normal and rapid discharge of heat. However, this can easily lead to excessive flow between the cabinet and the external environment, and the heat dissipation slots cannot be sealed. This can easily cause external dust and impurities to flow into the cabinet, affecting its normal operation. Therefore, we propose a distribution box overheating protection structure. Utility Model Content

[0004] The main purpose of the utility model is to provide an overheating protection structure for a distribution box, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A distribution box overheat protection structure includes a mounting base, a cabinet body is fixedly mounted on the top surface of the mounting base, a protective cabinet door is hingedly connected to the side of the cabinet body through a rotating shaft, and guide plates are fixedly mounted on the surfaces of both ends of the side of the cabinet body;

[0007] A guide groove is provided inside the side of each guide plate, a protective plate is slidably installed between the two sets of guide plate sides, and guide blocks are fixedly installed on the outer ends of the protective plates, and the guide blocks are slidably inserted into the guide groove;

[0008] A first fixed frame and a second fixed frame are fixedly installed on both sides of the top of the cabinet, and rotating rollers are rotatably installed on the inner sides of the first fixed frame and the second fixed frame. A traction rope is movably installed between the outer sides of the two groups of rotating rollers. Fixed rings are fixedly installed on the surfaces of both sides of the top of the protective plate, and the side edges of the traction rope are fixedly sleeved inside the fixed rings.

[0009] By adopting the above technical solution, the protective plate can be moved vertically on the right side surface of the cabinet through the guiding sliding action of the guide groove on the guide block and the traction rope on the protective plate, thereby adjusting the position of the heat dissipation slots of the protective plate, so that the positions of the heat dissipation slots are staggered and overlapped with each other, thereby realizing the heat dissipation inside the cabinet and the protective blocking treatment of the cabinet.

[0010] As an optional solution of the technical solution of the present application, a mounting frame is fixedly installed on the side surface of the cabinet, a rotating motor is fixedly installed on the outer surface of the mounting frame, and a blower fan blade is fixedly and rotatably installed on the surface of the rotating motor drive shaft through a coupling.

[0011] By adopting the above technical solution, the traction and pulling processing of the protective plate is achieved through the driving action of the rotating motor.

[0012] As an optional solution of the technical solution of the present application, heat dissipation grooves are provided inside the sides of the cabinet and the protective plate.

[0013] By adopting the above technical solution, the heat inside the cabinet is discharged through the structural function of the heat dissipation groove.

[0014] As an optional solution of the technical solution of the present application, a servo motor is fixedly mounted on the outer surface of the first fixed frame, and the side of the servo motor transmission shaft is fixedly connected to the outer side of the rotating roller through a coupling.

[0015] By adopting the above technical solution, the normal operation of the fan blades is achieved through the driving action of the servo motor to generate heat dissipation airflow.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of the present application is an overheating protection structure for a distribution box, in which two sets of rotating rollers are installed on the top of the cabinet through a first fixed frame and a second fixed frame, so that when the rotating rollers rotate, they can provide corresponding pulling force to the left side of the traction rope, that is, the traction rope can provide corresponding traction force to the top of the protective plate under the winding and guiding action of the two sets of rotating rollers, and then combined with the guiding sliding action of the guide groove on the guide block, the protective plate can be moved vertically on the right side surface of the cabinet, and then the position of the heat dissipation slot of the protective plate is adjusted, so that the positions of the heat dissipation slots are staggered and overlapped, thereby realizing the heat discharge inside the cabinet and the protective blocking treatment of the cabinet.

[0018] 2. The technical solution of the present application is an overheating protection structure for a distribution box, in which the blowing fan blades and the rotating motor are installed on the outside of the cabinet through an installation frame, so that when the rotating motor is running, the blowing fan blades are driven to rotate synchronously, thereby speeding up the heat discharge speed inside the cabinet and avoiding excessive heat accumulation that affects the control and use of electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of an overheating protection structure for a distribution box of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall top view cross-sectional structure of an overheating protection structure for a distribution box according to the present invention;

[0021] Figure 3 This is a schematic diagram of the enlarged structure of part A of an overheating protection structure for a distribution box of the present invention.

[0022] Figure numerals: 1. Mounting base; 11. Cabinet body; 12. Protective cabinet door; 2. Guide plate; 21. Protective plate; 22. Guide block; 23. Guide groove; 24. Fixed ring; 25. First fixed frame; 26. Second fixed frame; 27. Servo motor; 28. Rotating roller; 29. ​​Traction rope; 3. Mounting frame; 31. Fan blades; 32. Rotating motor; 33. Heat sink. DETAILED DESCRIPTION

[0023] like Figure 1-3 As shown, the utility model provides a technical solution: an overheating protection structure for a distribution box, wherein a protective cabinet door 12 is hinged on the side of the cabinet body 11 through a rotating shaft, the cabinet body 11 is fixedly installed on the top surface of the mounting base 1, and guide plates 2 are fixedly installed on the surfaces of both ends of the side of the cabinet body 11, and a guide groove 23 is opened inside the side of each guide plate 2. A protective plate 21 is slidably installed between the sides of the two groups of guide plates 2, and guide blocks 22 are fixedly installed on the outer side surfaces of the protective plate 21, and the guide blocks 22 are slidably inserted into the guide groove 23.

[0024] In this technical solution (through Figure 1 、 Figure 2 and Figure 3 As shown), a first fixed frame 25 and a second fixed frame 26 are fixedly installed on both sides of the top of the cabinet 11, and rotating rollers 28 are rotatably installed on the inner sides of the first fixed frame 25 and the second fixed frame 26. A traction rope 29 is movably installed between the outer sides of the two groups of rotating rollers 28. Fixed rings 24 are fixedly installed on the surfaces of both sides of the top of the protective plate 21, and the side edges of the traction rope 29 are fixedly sleeved inside the fixed rings 24. Heat dissipation grooves 33 are provided inside the sides of the cabinet 11 and the protective plate 21.

[0025] In this technical solution (through Figure 1 、 Figure 2 and Figure 3 As shown), a mounting frame 3 is fixedly mounted on the side surface of the cabinet 11, a rotating motor 32 is fixedly mounted on the outer surface of the mounting frame 3, and a fan blade 31 is fixedly and rotatably mounted on the surface of the transmission shaft of the rotating motor 32 through a coupling.

[0026] In this technical solution (through Figure 1 、 Figure 2 and Figure 3 As shown), a servo motor 27 is fixedly mounted on the outer surface of the first fixed frame 25, and the side of the drive shaft of the servo motor 27 is fixedly connected to the outer side of the rotating roller 28 through a coupling.

[0027] During operation, the mounting base 1 and the cabinet 11 are placed outdoors together to control the electrical components. When the external ambient temperature is too high and the temperature inside the cabinet 11 increases, the servo motor 27 is turned on by the external control switch to make it run, driving the rotating roller 28 inside the first fixed frame 25 to rotate synchronously, and the traction rope 29 is wound and pulled. Then, under the guiding action of the rotating roller 29, the traction rope 29 is guided and pulled, and the corresponding vertical pulling force can be provided to the protective plate 21. Combined with the guiding sliding action of the guide groove 23 on the guide block 22, the protective plate 21 can move vertically synchronously so that the heat dissipation groove 33 arranged inside it overlaps with the heat dissipation groove on the side of the cabinet 11, so that air circulation can be achieved between the interior of the cabinet 11 and the external environment. The rotating motor 32 is turned on synchronously to make it run and drive the fan blades 31 to rotate. Combined with the rotation of the fan blades 31, the heat discharge inside the cabinet 11 is accelerated, thereby avoiding excessive heat accumulation and affecting the use of electrical components inside the cabinet.

Claims

1. A distribution box overheat protection structure, comprising a mounting base (1), characterized in that: A cabinet (11) is fixedly mounted on the top surface of the mounting base (1), and guide plates (2) are fixedly mounted on both end surfaces of the side edges of the cabinet (11); A guide groove (23) is provided inside the side of each guide plate (2), a protective plate (21) is slidably installed between the side edges of two groups of guide plates (2), guide blocks (22) are fixedly installed on the outer side surfaces of both ends of the protective plate (21), and the guide blocks (22) are slidably inserted into the guide groove (23); A first fixed frame (25) and a second fixed frame (26) are respectively fixedly installed on both sides of the top of the cabinet (11); rotating rollers (28) are rotatably installed inside the first fixed frame (25) and the second fixed frame (26); a traction rope (29) is movably installed between the outer sides of the two groups of rotating rollers (28); and fixed rings (24) are fixedly installed on both sides of the top of the protective plate (21), and the side of the traction rope (29) is fixedly sleeved inside the fixed ring (24).

2. The overheat protection structure of a distribution box according to claim 1, characterized in that: A protective cabinet door (12) is hingedly connected to the side of the cabinet body (11) via a rotating shaft.

3. The overheat protection structure of a distribution box according to claim 1, characterized in that: A mounting frame (3) is fixedly mounted on the side surface of the cabinet (11), a rotating motor (32) is fixedly mounted on the outer surface of the mounting frame (3), and a blower blade (31) is fixedly and rotatably mounted on the surface of the transmission shaft of the rotating motor (32) via a coupling.

4. The overheat protection structure of a distribution box according to claim 1, characterized in that: Heat dissipation grooves (33) are provided inside the sides of the cabinet (11) and the protection plate (21).

5. The overheat protection structure of a distribution box according to claim 1, characterized in that: A servo motor (27) is fixedly mounted on the outer surface of the first fixed frame (25), and the side of the transmission shaft of the servo motor (27) is fixedly connected to the outer side of the rotating roller (28) through a coupling.

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