Brake resistance box with protection function

Abstract

The utility model discloses a brake resistance box with a protection function, which comprises a resistance box body, one side of the resistance box body is fixedly communicated with a gas reversing box, one side of the inner wall of the gas reversing box is fixedly connected with a limiting frame, the inner wall of the limiting frame is slidably connected with a pulling frame, and one side of the pulling frame is provided with a shifting disc. The bidirectional motor is started, the output end of the bidirectional motor drives the cooling fan and the worm to rotate, the pulling frame slides back and forth in the limiting frame through the shifting disc, and therefore the pulling frame enables the swing rod to swing along the sliding column, and the resistor mounting frame slides in the inner wall of the gas reversing box. The connecting block pulls the rotating fan blades to rotate in the gas reversing box, the flowing direction of heat dissipation air of the heat dissipation fan is changed, no-dead-corner cooling of equipment in the resistance box body is achieved, and the heat dissipation efficiency of the resistance box body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake resistor boxes, in particular to a brake resistor box with a protective function. Background Art

[0002] Braking resistor box, an electronic device, is mainly used to convert the regenerative energy generated by the motor into heat energy and dissipate it when the motor slows down or stops, so as to protect the motor and related equipment. It is usually used in elevator systems, crane systems, automated production lines, rail transit systems and other places.

[0003] In the prior art, for example, Chinese patent CN220753162U discloses a brake resistor box, a box body; a plurality of resistors fixedly arranged in the box body and connected in series in a motor circuit; a fan arranged on one side of the box body and suitable for blowing air to dissipate heat for the resistors; and a first air outlet opening opened at the bottom of the box body.

[0004] However, in the above patent, since the cooling fan is fixed on the inner wall of the resistor box, the wind direction of the fan can only dissipate heat to the components in the front, resulting in that the components near the edge inside the brake resistor box cannot be cooled, thereby reducing the heat dissipation protection efficiency of the brake resistor box and making it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a brake resistor box with a protective function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a braking resistor box with a protective function, comprising a resistor box body, one side of the resistor box body is fixedly connected to a gas reversing box, one side of the inner wall of the gas reversing box is fixedly connected to a limiting frame, the inner wall of the limiting frame is slidably connected to a pulling frame, one side of the pulling frame is provided with a toggle disk, the output end of the toggle disk is slidably connected to the inner wall of the pulling frame, one end of the pulling frame is rotatably connected to a swing rod, the middle part of the swing rod is slidably connected to a sliding column, one end of the sliding column is fixedly connected to the inner wall of the gas reversing box, one side of the swing rod is slidably connected to an L-shaped sliding rod, one side of the L-shaped sliding rod is rotatably connected to a plurality of connecting blocks, the inner wall of the gas reversing box and near the edge are rotatably connected to a plurality of rotating fan blades, one side of the plurality of rotating fan blades are respectively fixedly connected to one side of the plurality of connecting blocks.

[0007] As a further preferred embodiment of the present technical solution, a cooling fan is fixedly installed on one side of the gas reversing box, a bidirectional motor is fixedly installed on one side of the cooling fan, an output end of the bidirectional motor is transmission-connected with a worm, one side of the worm is meshed with a turbine, one side of the turbine is fixedly connected with a rotating shaft, and one end of the rotating shaft is fixedly connected to the middle part of one side of the dial.

[0008] As a further preferred embodiment of the present technical solution, an air intake cover is fixedly connected to one side of the heat dissipation fan, and a heat dissipation semiconductor is fixedly installed to one side of the air intake cover.

[0009] As a further preferred embodiment of the present technical solution, a disassembly cover is provided on one side of the resistor box body, and fixing bolts are threadedly connected at four corners of one side of the disassembly cover, and one end of the fixing bolts is threadedly connected to one side of the resistor box body.

[0010] As a further preferred embodiment of the present technical solution, a heat dissipation hole is formed through one side of the resistor box body, a mounting frame is fixedly connected to the inner wall of the resistor box body, and a filter is slidably connected to the inner wall of the mounting frame.

[0011] As a further preferred embodiment of the present technical solution, four buffer boxes are fixedly connected to the inner bottom of the resistor box body, buffer devices are fixedly installed on the inner walls of the four buffer boxes, and a resistor mounting frame is fixedly connected to one end of the buffer device.

[0012] The utility model provides a brake resistor box with a protective function, which has the following beneficial effects:

[0013] (1) The utility model starts a bidirectional motor, and the output end of the bidirectional motor drives the cooling fan and the worm to rotate respectively. The toggle plate causes the pulling frame to slide back and forth in the limit frame, so that the pulling frame swings the swing rod along the sliding column, and the resistor mounting frame slides in the inner wall of the gas reversing box. During the sliding, the connecting block pulls the rotating fan blades to rotate in the gas reversing box, thereby changing the flow direction of the cooling air of the cooling fan, achieving dead-angle cooling of the equipment in the resistor box body, and improving the heat dissipation efficiency of the resistor box body.

[0014] (2) When the resistor box body is hit by an external force, the resistor mounting frame squeezes the buffer device, and the reaction force of the return spring in the buffer device buffers the squeezer, thereby protecting the equipment on the resistor mounting frame and improving the service life of the equipment in the resistor box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2This is a schematic diagram of the internal structure of the resistor box body in the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the gas reversing box in the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area;

[0019] In the figure: 1. resistor box body; 2. disassembly cover; 3. heat dissipation hole; 4. gas reversing box; 5. cooling fan; 6. heat dissipation semiconductor; 7. air intake cover; 8. fixing bolt; 9. mounting frame; 10. filter screen; 11. buffer box; 12. buffer device; 13. resistor mounting frame; 14. rotating fan blade; 15. L-shaped slide bar; 16. connecting block; 17. worm; 18. rotating shaft; 19. turbine; 20. bidirectional motor; 21. limit frame; 22. swing rod; 23. pulling frame; 24. sliding column; 25. toggle plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 - Figure 4 As shown, in the present embodiment, a brake resistor box with a protective function comprises a resistor box body 1, one side of the resistor box body 1 is fixedly connected to a gas reversing box 4, one side of the inner wall of the gas reversing box 4 is fixedly connected to a limiting frame 21, the inner wall of the limiting frame 21 is slidably connected to a pulling frame 23, one side of the pulling frame 23 is provided with a toggle plate 25, the output end of the toggle plate 25 is slidably connected to the inner wall of the pulling frame 23, one end of the pulling frame 23 is rotatably connected to a swing rod 22, the middle part of the swing rod 22 is slidably connected to a sliding column 24, one end of the sliding column 24 is fixedly connected to the inner wall of the gas reversing box 4, one side of the swing rod 22 is slidably connected to an L-shaped sliding rod 15, one side of the L-shaped sliding rod 15 is rotatably connected to a plurality of connecting blocks 16, and the gas reversing box 4 is fixedly connected to a brake resistor box body 1 ... A plurality of rotating blades 14 are rotatably connected to the inner wall of the box 4 and near the edge, and one side of the plurality of rotating blades 14 is fixedly connected to one side of a plurality of connecting blocks 16 respectively. By turning on the bidirectional motor 20, the output ends of the bidirectional motor 20 respectively drive the cooling fan 5 and the worm 17 to rotate, and the dial 25 causes the pulling frame 23 to slide back and forth in the limit frame 21, so that the pulling frame 23 swings the swing rod 22 along the sliding column 24, and the resistor mounting frame 13 slides in the inner wall of the gas reversing box 4. During sliding, the connecting block 16 pulls the rotating blades 14 to rotate in the gas reversing box 4, thereby changing the flow direction of the cooling wind of the cooling fan 5, thereby achieving dead-angle cooling of the equipment in the resistor box body 1 and improving the heat dissipation efficiency of the resistor box body 1.

[0022] like Figure 3 As shown, a cooling fan 5 is fixedly installed on one side of the gas reversing box 4, a bidirectional motor 20 is fixedly installed on one side of the cooling fan 5, the output end of the bidirectional motor 20 is transmission-connected with a worm 17, one side of the worm 17 is meshed with a turbine 19, one side of the turbine 19 is fixedly connected with a rotating shaft 18, one end of the rotating shaft 18 is fixedly connected to the middle part of one side of the dial 25, and through the cooperation of the worm 17 and the turbine 19, the transmission force of the bidirectional motor 20 can be decelerated to the rotating shaft 18 to prevent the rotating fan blades 14 from rotating too fast.

[0023] like Figure 1 - Figure 3 As shown, an air intake hood 7 is fixedly connected to one side of the heat dissipation fan 5, and a heat dissipation semiconductor 6 is fixedly installed on one side of the air intake hood 7. The heat dissipation semiconductor 6 is used to cool the gas in the air intake hood 7, thereby improving the cooling efficiency of the equipment in the resistor box body 1.

[0024] like Figure 1 and Figure 2 As shown, a disassembly cover 2 is provided on one side of the resistor box body 1, and fixing bolts 8 are threadedly connected at the four corners of one side of the disassembly cover 2. One end of the fixing bolt 8 is threadedly connected to one side of the resistor box body 1. The resistor box body 1 can be opened through the fixing bolt 8 to repair the equipment in the resistor box body 1 and clean the filter 10.

[0025] like Figure 1 and Figure 2 As shown, a heat dissipation hole 3 is opened through one side of the resistor box body 1, and a mounting frame 9 is fixedly connected to the inner wall of the resistor box body 1. A filter screen 10 is slidably connected to the inner wall of the mounting frame 9. The filter screen 10 can filter the gas entering the resistor box body 1 to prevent dust from entering the resistor box body 1 and affecting the operation of the equipment.

[0026] like Figure 2 As shown, four buffer boxes 11 are fixedly connected to the inner bottom of the resistor box body 1, and buffer devices 12 are fixedly installed on the inner walls of the four buffer boxes 11. One end of the buffer device 12 is fixedly connected to a resistor mounting frame 13. When an external force hits the resistor box body 1, the resistor mounting frame 13 squeezes the buffer device 12, and the reaction force of the reset spring in the buffer device 12 buffers the squeezer, thereby protecting the equipment on the resistor mounting frame 13 and improving the service life of the equipment in the resistor box body 1.

[0027] The utility model provides a brake resistor box with a protective function, and the specific working principle is as follows:

[0028] When using the brake resistor box, turn on the bidirectional motor 20, and the output end of the bidirectional motor 20 drives the cooling fan 5 and the worm 17 to rotate respectively. The cooperation of the worm 17 and the turbine 19 decelerates the toggle plate 25, and the toggle plate 25 makes the pulling frame 23 slide back and forth in the limit frame 21, so that the pulling frame 23 swings the swing rod 22 along the sliding column 24, and the resistor mounting frame 13 slides in the inner wall of the gas reversing box 4. During sliding, the connecting block 16 pulls the rotating fan blades 14 to rotate in the gas reversing box 4, changing the flow direction of the cooling wind of the cooling fan 5, and cooling the equipment in the resistor box body 1 without dead angles. When the resistor box body 1 is used for a long time and there is a lot of dust accumulated on the filter 10, the disassembly cover 2 is removed from the resistor box body 1 by loosening the fixing bolts 8, and then the filter 10 is pulled out from the mounting frame 9, so as to clean the filter 10.

[0029] 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 brake resistor box with a protective function, comprising a resistor box body (1), characterized in that: One side of the resistor box body (1) is fixedly connected to a gas reversing box (4); one side of the inner wall of the gas reversing box (4) is fixedly connected to a limiting frame (21); the inner wall of the limiting frame (21) is slidably connected to a pulling frame (23); one side of the pulling frame (23) is provided with a toggle plate (25); the output end of the toggle plate (25) is slidably connected to the inner wall of the pulling frame (23); one end of the pulling frame (23) is rotatably connected to a swing rod (22); the middle portion of the swing rod (22) is A sliding column (24) is slidably connected, one end of the sliding column (24) is fixedly connected to the inner wall of the gas reversing box (4), one side of the swing rod (22) is slidably connected to an L-shaped sliding rod (15), one side of the L-shaped sliding rod (15) is rotatably connected to a plurality of connecting blocks (16), the inner wall of the gas reversing box (4) and near the edge are rotatably connected to a plurality of rotating blades (14), one side of the plurality of rotating blades (14) is respectively fixedly connected to one side of a plurality of connecting blocks (16).

2. The brake resistor box with protective function according to claim 1, characterized in that: A cooling fan (5) is fixedly mounted on one side of the gas reversing box (4), a bidirectional motor (20) is fixedly mounted on one side of the cooling fan (5), an output end of the bidirectional motor (20) is drivingly connected to a worm (17), one side of the worm (17) is meshed with a turbine (19), one side of the turbine (19) is fixedly connected to a rotating shaft (18), one end of the rotating shaft (18) is fixedly connected to the middle of one side of the dial (25).

3. The brake resistor box with protective function according to claim 2, characterized in that: An air intake cover (7) is fixedly connected to one side of the heat dissipation fan (5), and a heat dissipation semiconductor (6) is fixedly installed on one side of the air intake cover (7).

4. The brake resistor box with protective function according to claim 1, characterized in that: A disassembly cover (2) is provided on one side of the resistor box body (1), and fixing bolts (8) are threadedly connected at four corners of one side of the disassembly cover (2), and one end of the fixing bolt (8) is threadedly connected to one side of the resistor box body (1).

5. The brake resistor box with protective function according to claim 1, characterized in that: A heat dissipation hole (3) is provided through one side of the resistor box body (1); a mounting frame (9) is fixedly connected to the inner wall of the resistor box body (1); and a filter screen (10) is slidably connected to the inner wall of the mounting frame (9).

6. The brake resistor box with protective function according to claim 1, characterized in that: Four buffer boxes (11) are fixedly connected to the inner bottom of the resistor box body (1), and buffer devices (12) are fixedly installed on the inner walls of the four buffer boxes (11), and one end of the buffer device (12) is fixedly connected to a resistor mounting frame (13).

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