A high-power semiconductor overvoltage protection device

Abstract

The present invention discloses a high-power semiconductor overvoltage protection device, and relates to the technical field of overvoltage protection devices. It comprises a box body and a box door, wherein an air inlet device is arranged on the top of the box body, an air outlet device is arranged on the bottom of one side of the box body, a mounting seat is fixed on the inner wall of one side of the box body, a protector placement device is placed on the top of the mounting seat, and a pushing device is arranged on the side wall of the box body, the pushing device comprises a horizontal slider and a vertical connecting block, and the protector placement device comprises a placement frame, and the vertical connecting block is fixed to the back of the placement frame. The present invention is provided with a mounting seat, a protector placement device and a pushing device. When installing, the motor is started, and when the motor rotates, it drives the transmission rod to rotate, and then drives the horizontal slider to slide on the horizontal fixed plate, so that the mounting seat is pushed toward the box door side through the vertical fixed plate, and after the overvoltage protector is placed in the placement frame, the screw is rotated to fix the overvoltage protector to the placement frame.

Description

Technical Field

[0001] The present invention relates to the technical field of overvoltage protection devices, in particular to a high-power semiconductor overvoltage protection device. Background Art

[0002] When using all electrical appliances, the most taboo is that the grid voltage is too high or too low. Both industrial equipment and household appliances have a rated voltage, and the voltage range is usually specified as 170V-240V. If this voltage is exceeded, the insulation strength and withstand voltage of the appliance will be exceeded, and the appliance will heat up, break down, burn out, or even catch fire. At present, due to the theft of the neutral line, aging of equipment, technical failure, human failure, natural disasters, power outages and other reasons, the voltage is unstable, and the voltage is too high or too low, resulting in a large number of electrical appliances being burned out and burned in large areas. People have suffered heavy losses and have no way to claim compensation. The labor-intensive and costly things have come one after another. Yimin overvoltage, overvoltage, and undervoltage protectors should be added to prevent electrical fires and protect the safety of life and property. An overvoltage protection device is formed between the overvoltage protector and the installed fixed overvoltage protector box.

[0003] In the prior art, the overvoltage protector is generally fixed directly on the box, which is inconvenient to disassemble and assemble the overvoltage protector. In addition, since there are many electrical components in the box, the electrical components generate heat when working. In order to ensure the normal operation of the system, the box needs to be cooled. During the heat dissipation process, external dust and water vapor can easily enter the box, thereby damaging the electrical components. Summary of the invention

[0004] The object of the present invention is to provide a high-power semiconductor overvoltage protection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-power semiconductor overvoltage protection device, comprising a box body and a box door, an air inlet device is arranged on the top of the box body, an air outlet device is arranged on the bottom of one side of the box body, a mounting seat is fixed to the inner wall of one side of the box body, a protector placement device is placed on the top of the mounting seat, a pushing device is arranged on the side wall of the box body, the pushing device comprises a horizontal slider and a vertical connecting block, the protector placement device comprises a placement frame, and the vertical connecting block is fixed to the back side of the placement frame.

[0006] Furthermore, the air outlet device includes a second support ring fixed to the inner wall of the air outlet hole, and a protective net is fixed to the side surface of the second support ring by screws.

[0007] Furthermore, an opening and closing device is arranged inside the air outlet.

[0008] Furthermore, the opening and closing device includes a fixed plate and a cover plate, a vertical plate is fixed on one side of the bottom end of the fixed plate, a first hinge seat is fixed on the top end of the cover plate, the bottom of the vertical plate is movably connected to the hinge column of the first hinge seat, a second hinge seat is fixed on one side of the bottom end of the fixed plate, a third hinge seat is fixed on the front side of the cover plate, and a telescopic rod is movably connected between the hinge column of the second hinge seat and the hinge column of the third hinge seat.

[0009] Furthermore, the air intake device includes a top tube fixed at the top of the air inlet hole and a bottom tube fixed at the bottom of the air inlet hole, a first support ring is fixed to the inner wall of the top tube, a filter is fixed to the top of the first support ring by bolts, an electronic fan is fixed to the inner wall of the air inlet hole, a desiccant storage cylinder is screwed to the bottom of the bottom tube, a plurality of ventilation holes are opened on the side wall of the desiccant storage cylinder, and the desiccant storage cylinder is filled with desiccant.

[0010] Furthermore, the desiccant is calcium oxide particles.

[0011] Furthermore, a dovetail block is integrally formed at the bottom of the placement frame, a dovetail groove is opened at the top of the mounting seat, the dovetail block and the dovetail groove are adapted to each other, a plurality of springs are fixed to the front of the frame plate on the back of the placement frame, a pressure plate is fixed to the end of the spring, a connecting plate is fixed to the front of the placement frame, an extrusion plate is movably connected between the frame plates on both sides of the placement frame, a screw is movably connected on the connecting plate, and the screw and the extrusion plate are rotatably connected through a bearing.

[0012] Furthermore, the pushing device includes a horizontal fixing plate and a vertical fixing plate fixed to the side walls of the box body, the horizontal fixing plate and the vertical fixing plate are in a T shape, the horizontal slider is movably connected to the horizontal fixing plate, a rotating shaft is movably connected to the vertical fixing plate body, a turntable is fixed to the end of the rotating shaft, a second pin shaft, a third pin shaft and a first pin shaft are respectively fixed to the bottom end of the vertical fixing plate, the front of the turntable and the side of the horizontal slider, the second pin shaft body is movably connected to a transmission rod, two straight slots are provided on the top of the transmission rod, the third pin shaft and the first pin shaft are respectively located in the two straight slots, a motor is fixed to the outside of the box body, and the output end of the motor is fixed to the end of the rotating shaft.

[0013] Furthermore, a humidity sensor and a temperature sensor are fixed to the inner wall at the back of the box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The high-power semiconductor overvoltage protection device is provided with a mounting seat, a protector placement device and a pushing device. When installing, the motor is started, and the motor drives the transmission rod to rotate when the motor rotates, thereby driving the horizontal slider to slide on the horizontal fixing plate, so that the mounting seat is pushed toward the box door side through the vertical fixing plate, and after the overvoltage protector is placed in the placement frame, the screw rod is rotated to fix the overvoltage protector to the placement frame, thereby facilitating the installation of the overvoltage protector.

[0016] In addition, an air intake device, an air outlet device and an opening and closing device are also provided. The outside air entering the box is filtered and dehumidified through the air intake device, thereby achieving purification and drying of the outside air while cooling the box, preventing external dust and water vapor from entering the box, thereby protecting the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a left side axial view of the present invention;

[0018] Figure 2 This is an axial view of the present invention after the box door is opened;

[0019] Figure 3 A half-section diagram of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of part A;

[0021] Figure 5 Right side axial view of the setup for placement of mount and protector;

[0022] Figure 6 Left rear axial view of the setup for the mount and protector placement;

[0023] Figure 7 A top view of the device for placing the mount and protector;

[0024] Figure 8 Detailed view of the propulsion device.

[0025] In the figure: 1, box body; 2, box door; 3, air intake device; 301, top tube; 302, first support ring; 303, filter screen; 304, electronic fan; 305, bottom tube; 306, desiccant storage cylinder; 4, air outlet device; 401, second support ring; 402, protective net; 5, mounting seat; 501, dovetail groove; 6, protector placement device; 601, placement frame; 602, connecting plate; 603, extrusion plate; 604, screw; 605, spring; 606, pressure plate; 7, pushing device; 701, horizontal Fixed plate; 702, vertical fixed plate; 703, rotating shaft; 704, turntable; 705, horizontal slider; 706, vertical connecting block; 707, first pin shaft; 708, second pin shaft; 709, third pin shaft; 7010, transmission rod; 7011, motor; 8, temperature sensor; 9, humidity sensor; 10, opening and closing device; 1001, fixed plate; 1002, vertical plate; 1003, cover plate; 1004, first hinge seat; 1005, second hinge seat; 1006, third hinge seat; 1007, telescopic rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0029] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0030] like Figure 1-Figure 8As shown, the present invention provides a technical solution: a high-power semiconductor overvoltage protection device, including a box body 1 and a box door 2, the device also includes a controller, a humidity sensor 9 and a temperature sensor 8 are fixed on the inner wall of the back side of the box body 1, the humidity sensor 9 is used to detect the humidity in the box body 1, and the temperature sensor 8 is used to detect the temperature in the box body 1, the temperature sensor 8 and the humidity sensor 9 are electrically connected to the controller, an air intake device 3 is arranged on the top of the box body 1, and the outside air enters the box body 1 through the air intake device 3, and an air outlet device 4 is arranged on the bottom of one side of the box body 1, and the gas in the box body 1 is discharged through the air outlet device 4, wherein the air outlet device 4 includes a second support ring 401 fixed to the inner wall of the air outlet hole, and a protective net 402 is fixed to the side of the second support ring 401 by screws, such a setting facilitates the cleaning of the protective net 402, and the protective net 402 is preferably made of 304 stainless steel material, and the protective net 402 The purpose of the arrangement is to prevent outdoor animals or insects from entering the air outlet, thereby causing damage to the electrical components in the box body 1. A mounting seat 5 is fixed to the inner wall of one side of the box body 1, and a dovetail groove 501 is opened at the top of the mounting seat 5. A protector placement device 6 is placed on the top of the mounting seat 5, and the protector placement device 6 includes a placement frame 601, and a dovetail block is integrally formed at the bottom of the placement frame 601, and the dovetail block and the dovetail groove 501 are adapted to each other. The setting of the dovetail block and the dovetail groove 501 can limit the placement frame 601 in the vertical direction, and a pushing device 7 is arranged on the side wall of the box body 1, wherein the pushing device 7 includes a horizontal slider 705 and a vertical connecting block 706, and the horizontal slider 705 and the vertical connecting block 706 are integrally formed, and the angle between the horizontal slider 705 and the vertical connecting block 706 is 90°. The setting of the pushing device 7 realizes the movement of the placement frame 601. It can be understood that the vertical connecting block 706 is fixed to the back of the placement frame 601.

[0031] In order to prevent external dust from entering the interior of the box 1, Figure 3 and Figure 4As shown, an opening and closing device 10 is arranged inside the air outlet, and the opening and closing device 10 is opened when the heat and moisture inside the box body 1 are dissipated. The setting of the opening and closing device 10 can effectively prevent external dust and water vapor from entering the inside of the box body 1, wherein the opening and closing device 10 includes a fixed plate 1001 and a cover plate 1003, and the cover plate 1003 is a circular plate, and the diameter of the cover plate 1003 is larger than the aperture of the air outlet, so that when the opening and closing device 10 is closed, the cover plate 1003 can completely cover the air outlet, and a vertical plate 1002 is fixed to one side of the bottom end of the fixed plate 1001, and a first hinge seat 1004 is fixed to the top of the cover plate 1003, and the bottom of the vertical plate 1002 is connected to the first hinge seat 1004. The hinge columns are movably connected, a second hinge seat 1005 is fixed on one side of the bottom end of the fixed plate 1001, a third hinge seat 1006 is fixed on the front of the cover plate 1003, and a telescopic rod 1007 is movably connected between the hinge columns of the second hinge seat 1005 and the hinge columns of the third hinge seat 1006, that is, the two sides of the telescopic rod 1007 are movably connected to the hinge columns of the second hinge seat 1005 and the hinge columns of the third hinge seat 1006 respectively. When the opening and closing device 10 is opened, the telescopic rod 1007 is started, and when the telescopic rod 1007 contracts, it drives the cover plate 1003 to rotate around the hinge column of the first hinge seat 1004, thereby connecting the air outlet with the inner cavity of the box body 1.

[0032] In order to ensure the smooth implementation of the plan, it is necessary to explain that Figure 3 As shown, the air intake device 3 includes a top tube 301 fixed to the top of the air inlet hole and a bottom tube 305 fixed to the bottom of the air inlet hole. A first support ring 302 is fixed to the inner wall of the top tube 301. A filter screen 303 is fixed to the top of the first support ring 302 by bolts. This fixing method facilitates the cleaning or replacement of the filter screen 303. An electronic fan 304 is fixed to the inner wall of the air inlet hole. The electronic fan 304 provides power for the heat exchange of the gas in the box body 1. The electronic fan 304 is electrically connected to the controller. A desiccant storage cylinder 306 is screwed at the bottom of the bottom tube 305. The screwing fixation facilitates the disassembly and assembly of the desiccant storage cylinder 306, thereby facilitating the storage of the desiccant. The desiccant in the cylinder 306 is replaced, and a plurality of ventilation holes are provided on the side wall of the desiccant storage cylinder 306. The desiccant storage cylinder 306 is filled with desiccant. Preferably, the desiccant is calcium oxide particles. As an assumption, the desiccant particles are relatively large and will not block the ventilation holes after being stacked on each other. The water vapor in the outside air can enter the housing 1 through the ventilation holes after being adsorbed by the desiccant. The outside air entering the housing 1 is filtered and dehumidified by the air intake device 3, thereby achieving purification and drying of the outside air while cooling the housing 1, preventing outside dust and water vapor from entering the housing 1, and effectively protecting the electrical components inside the housing 1.

[0033] In order to ensure the smooth implementation of the scheme, it is necessary to understand that a plurality of springs 605 are fixed on the front of the back frame plate of the placement frame 601, and a pressure plate 606 is fixed at the end of the spring 605. The setting of the pressure plate 606 and the spring 605 is to avoid rigid contact between the overpressure protector and the back frame plate, and can also play a certain shock-absorbing and buffering role for the overpressure protector. A connecting plate 602 is fixed on the front of the placement frame 601, and an extrusion plate 603 is movably connected between the frame plates on both sides of the placement frame 601. A screw 604 is movably connected to the connecting plate 602. It can be understood that the screw 604 and the extrusion plate 603 are rotatably connected through a bearing. The overpressure protector is placed in the placement frame 601, and the screw 604 is rotated. When the screw 604 rotates, it drives the extrusion plate 603 to move forward until the overpressure protector is squeezed by the pressure plate 606, thereby achieving the fixation of the overpressure protector.

[0034] In order to ensure the smooth implementation of the scheme, it is necessary to know that the pushing device 7 includes a horizontal fixing plate 701 and a vertical fixing plate 702 fixed to the side wall of the box body 1, and the vertical fixing plate 702 is located at the middle of the bottom end of the horizontal fixing plate 701. It can be understood that the horizontal fixing plate 701 and the vertical fixing plate 702 are T-shaped, and the horizontal slider 705 is movably connected to the horizontal fixing plate 701. It is necessary to know that a limiting groove is provided on the side of the horizontal slider 705, and sliders are provided at the top and bottom of the horizontal fixing plate 701, and the sliders are adapted to the limiting grooves. A rotating shaft 703 is movably connected to the plate body of the vertical fixing plate 702, and a turntable 704 is fixed at the end of the rotating shaft 703. The bottom end of the vertical fixing plate 702, the front of the turntable 704 and the horizontal A second pin shaft 708, a third pin shaft 709 and a first pin shaft 707 are fixed to the side of the slider 705 respectively. It should be noted that the third pin shaft 709 is located at a non-center position on the front of the turntable 704. The second pin shaft 708 is movably connected to a transmission rod 7010. Two straight slots are provided on the top of the transmission rod 7010. The third pin shaft 709 and the first pin shaft 707 are respectively located in the two straight slots and are movably connected to the straight slots. A motor 7011 is fixed to the outside of the box body 1. The motor 7011 is preferably a servo motor. Since the servo motor can control the speed and the movement position is accurate, it is suitable for this embodiment. The motor 7011 is electrically connected to the controller, and the output end of the motor 7011 is fixed to the end of the rotating shaft 703.

[0035] Specifically, during installation, the motor 7011 is started. When the motor 7011 rotates, it drives the turntable 704 to rotate, so that the third pin shaft 709 drives the transmission rod 7010 to rotate around the second pin shaft 708, and then drives the horizontal slider 705 to slide on the horizontal fixed plate 701, so that the protector placement device 6 is pushed toward the door 2 side through the vertical connecting block 706. When the temperature in the box body 1 exceeds the set value, the temperature sensor 8 transmits the temperature signal to the controller, and the controller controls the telescopic rod 1007 of the opening and closing device 10 to contract, thereby opening the air outlet. At this time, the electronic fan 304 is turned on, so that the outside air and the air in the box body 1 are heat exchanged, thereby reducing the temperature of the inner cavity of the box body 1.

[0036] 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 high-power semiconductor overvoltage protection device, comprising a housing (1) and a housing door (2), characterized in that: The top of the box (1) is provided with an air inlet device (3), the bottom of one side of the box (1) is provided with an air outlet device (4), an inner wall of one side of the box (1) is fixed with a mounting seat (5), a protector placement device (6) is placed on the top of the mounting seat (5), a pushing device (7) is provided on the side wall of the box (1), the pushing device (7) comprises a horizontal slider (705) and a vertical connecting block (706), the protector placement device (6) comprises a placement frame (601), and the vertical connecting block (706) is fixed to the back of the placement frame (601); The bottom end of the placement frame (601) is integrally formed with a dovetail block, the top end of the mounting seat (5) is provided with a dovetail groove (501), the dovetail block and the dovetail groove (501) are adapted to each other, a plurality of springs (605) are fixed to the front of the frame plate at the back of the placement frame (601), a pressure plate (606) is fixed to the end of the spring (605), a connecting plate (602) is fixed to the front of the placement frame (601), an extrusion plate (603) is movably connected between the frame plates on both sides of the placement frame (601), a screw rod (604) is movably connected to the connecting plate (602), and the screw rod (604) and the extrusion plate (603) are rotatably connected via a bearing; The pushing device (7) comprises a transverse fixing plate (701) and a vertical fixing plate (702) fixed to the side wall of the box body (1); the transverse fixing plate (701) and the vertical fixing plate (702) are in a T shape; a transverse sliding block (705) is movably connected to the transverse fixing plate (701); a rotating shaft (703) is movably connected to the plate body of the vertical fixing plate (702); a rotating disk (704) is fixed to the end of the rotating shaft (703); a bottom end of the vertical fixing plate (702), a front end of the rotating disk (704) and A second pin shaft (708), a third pin shaft (709) and a first pin shaft (707) are fixed to the side of the transverse slider (705), respectively; the shaft of the second pin shaft (708) is movably connected to a transmission rod (7010); two straight slots are provided on the top of the transmission rod (7010); the third pin shaft (709) and the first pin shaft (707) are respectively located in the two straight slots; a motor (7011) is fixed to the outside of the box body (1); and the output end of the motor (7011) is fixed to the end of the rotating shaft (703).

2. A high-power semiconductor overvoltage protection device according to claim 1, characterized in that: The air outlet device (4) comprises a second support ring (401) fixed to the inner wall of the air outlet hole, and a protective net (402) is fixed to the side surface of the second support ring (401) by means of screws.

3. A high-power semiconductor overvoltage protection device according to claim 2, characterized in that: An opening and closing device (10) is arranged inside the air outlet.

4. A high-power semiconductor overvoltage protection device according to claim 3, characterized in that: The opening and closing device (10) comprises a fixed plate (1001) and a cover plate (1003); a vertical plate (1002) is fixed to one side of the bottom end of the fixed plate (1001); a first hinge seat (1004) is fixed to the top end of the cover plate (1003); the bottom of the vertical plate (1002) is movably connected to a hinge column of the first hinge seat (1004); a second hinge seat (1005) is fixed to one side of the bottom end of the fixed plate (1001); a third hinge seat (1006) is fixed to the front of the cover plate (1003); and a telescopic rod (1007) is movably connected between the hinge column of the second hinge seat (1005) and the hinge column of the third hinge seat (1006).

5. A high-power semiconductor overvoltage protection device according to claim 1, characterized in that: The air intake device (3) comprises a top tube (301) fixed to the top of the air inlet hole and a bottom tube (305) fixed to the bottom of the air inlet hole, a first support ring (302) being fixed to the inner wall of the top tube (301), a filter screen (303) being fixed to the top of the first support ring (302) by bolts, an electronic fan (304) being fixed to the inner wall of the air inlet hole, a desiccant storage cylinder (306) being screwed to the bottom of the bottom tube (305), a plurality of ventilation holes being provided on the side wall of the desiccant storage cylinder (306), and a desiccant being filled in the desiccant storage cylinder (306).

6. A high-power semiconductor overvoltage protection device according to claim 5, characterized in that: The desiccant is calcium oxide particles.

7. A high-power semiconductor overvoltage protection device according to claim 1, characterized in that: A humidity sensor (9) and a temperature sensor (8) are fixed to the inner wall of the back side of the box body (1).

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