CN110783289B

CN110783289B - IGBT module protection device

Info

Publication number: CN110783289B
Application number: CN201911065956.9A
Authority: CN
Inventors: 韩波; 刘天宇; 冯建鑫
Original assignee: Hans Automation Technology Jiangsu Co ltd
Current assignee: Hans Automation Technology Jiangsu Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2023-03-24
Anticipated expiration: 2039-11-04
Also published as: CN110783289A

Abstract

The invention relates to the technical field of IGBT modules, in particular to an IGBT module protection device, which comprises an end cover and a box body with a cavity and an opening at the top, wherein an upper flange plate is arranged on the outer side wall of the end cover, a lower flange plate is arranged at the top end of the outer side wall of the box body, and the upper flange plate and the lower flange plate are detachably connected through a plurality of groups of bolts and nuts; still include the install bin, reciprocating lever, spring and hit the flitch, the inside installation cavity that is provided with of install bin, install bin bottom intercommunication is provided with the installing port, install bin left side wall intercommunication is provided with the gas outlet, install bin right side wall intercommunication is provided with the air inlet, air inlet department is provided with the filter screen, the first region in the left side of bottom is provided with door type ring in the install bin, door type ring inside is provided with left motor, left motor output is provided with first bevel gear, the first region in the top is provided with left connecting rod in the install bin, be provided with the bearing on the connecting rod of a left side. Simple structure, improved heat dissipation effect, and no maintenance.

Description

IGBT module protection device

Technical Field

The invention relates to the technical field of IGBT modules, in particular to an IGBT module protection device.

Background

As is well known, an IGBT (Insulated Gate Bipolar Transistor) has the characteristics of high frequency, high voltage, large current, and particularly, easy switching and on/off, and thus Y is widely used in a welding power supply. The existing IGBT module protection device comprises an end cover and a box body which is provided with a cavity and an opening at the top, wherein an upper flange plate is arranged on the outer side wall of the end cover, a lower flange plate is arranged at the top end of the outer side wall of the box body, the upper flange plate and the lower flange plate are detachably connected through a plurality of groups of bolts and nuts, an IGBT single tube is arranged at the bottom of the end cover, and a plurality of groups of pins connected with the IGBT single tube are arranged at the bottom of the box body; when the existing IGBT module protection device is used, the end cover is fixed inside a welding machine power supply through a plurality of groups of screws, and a plurality of groups of pins are connected with the welding machine power supply; the existing IGBT module protection device is found in use, the box body and the end cover form a closed space, heat inside the box body is gathered and inconvenient to discharge, so that an IGBT single tube is possibly burnt out, and the use reliability is lower.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the IGBT module protection device which is simple in structure, improves the heat dissipation effect and is free of maintenance.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an IGBT module protection device comprises an end cover and a box body which is provided with a cavity and is provided with an opening at the top, wherein an upper flange plate is arranged on the outer side wall of the end cover, a lower flange plate is arranged at the top end of the outer side wall of the box body, and the upper flange plate and the lower flange plate are detachably connected through a plurality of groups of bolts and nuts; still include the install bin, reciprocating lever, spring and hit the flitch, the inside installation cavity that is provided with of install bin, install bin bottom intercommunication is provided with the installing port, install bin left side wall intercommunication is provided with the gas outlet, install bin right side wall intercommunication is provided with the air inlet, air inlet department is provided with the filter screen, install bin bottom left side half regional is provided with door type ring, door type ring inside is provided with left motor, left motor output is provided with first bevel gear, install bin top left side half regional is provided with left connecting rod, be provided with the bearing on the left connecting rod, the bearing key-type is connected with the pivot, the pivot right-hand member is provided with the second bevel gear with first bevel gear meshing, the pivot left end is provided with the mounting panel, the mounting panel lateral wall is provided with the multiunit flabellum, install bin top right side half regional is provided with right connecting rod, be provided with the slip hole on the right connecting rod, reciprocating lever right-hand member passes slip hole and spring then is connected with hitting the flitch, spring left end and right connecting rod hit the flitch respectively, install bin top right side half regional being provided with well connecting rod, well connecting rod bottom is provided with right connecting rod, right connecting rod output is provided with the plectane, edge region is provided with the upper teeth, the lower teeth contact.

Preferably, the sliding device further comprises a ball group, wherein an annular groove is formed in the inner wall of the sliding hole, most of the area of each ball group is located in the annular groove, each ball group is in contact with the reciprocating rod, the longitudinal section of the outer side wall of the reciprocating rod is quadrilateral, and the longitudinal section of the inner side wall of the sliding hole is quadrilateral.

Preferably, still include multiunit heat dissipation tooth, end cover central zone is provided with the mounting hole, and the lateral wall bottom is provided with the diaphragm in the mounting hole, is provided with the multiunit louvre on the diaphragm, and multiunit heat dissipation tooth is inside all to be provided with the heat dissipation chamber, and multiunit heat dissipation tooth bottom all communicates and is provided with the thermovent, multiunit the thermovent is installed respectively in multiunit louvre department, and multiunit heat dissipation tooth is the aluminium material, and the diaphragm bottom is provided with the IGBT single tube, and the bottom half is provided with the multiunit pin of being connected with the IGBT single tube.

Preferably, a grid plate is arranged at the air outlet.

Preferably, the installation box bottom is passed through the top of multiunit mounting screw at the end cover, and the installation box right side wall is provided with two sets of L type locating levers, and the end cover right side wall is provided with two sets of holding rings, and two sets of L type locating levers pass two sets of holding rings respectively.

Preferably, the left half area of the reciprocating rod is provided with an anti-drop ring.

Preferably, the end cover, the installation box and the box body are all made of plastic materials.

(III) advantageous effects

Compared with the prior art, the invention provides an IGBT module protection device, which has the following beneficial effects:

1. according to the IGBT module protection device, the left motor drives the multiple groups of fan blades to rotate, and the multiple groups of fan blades rotate to cause forced convection, so that the heat dissipation effect is greatly improved;

2. this IGBT module protection device drives through right motor and hits the board and hit the filter screen and hit, makes the impurity on the filter screen break away from the filter screen, and the user need not to clear up the filter screen.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a right side view of the connection of the reciprocating lever, the ball group and the right connecting rod;

in the figure: 1. a box body; 2. an upper flange plate; 3. a nut; 4. installing a box; 5. a reciprocating lever; 6. a spring; 7. striking a board; 8. filtering with a screen; 9. a gate-type ring; 10. a left motor; 11. a first bevel gear; 12. a left connecting rod; 13. a bearing; 14. a rotating shaft; 15. a second bevel gear; 16. mounting a plate; 17. a fan blade; 18. a right connecting rod; 19. a middle connecting rod; 20. a right motor; 21. a circular plate; 22. upper teeth; 23. lower teeth; 24. a ball bearing; 25. a heat dissipating tooth; 26. a transverse plate; 27. an IGBT single tube; 28. a pin; 29. a grid plate; 30. an L-shaped positioning rod; 31. a positioning ring; 32. the anti-drop ring; 33. and (4) end covers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, an IGBT module protection device, an end cover 33, an installation box 4 and a box body 1 are made of plastic, so as to reduce the quality of the device, the bottom of the installation box 4 is installed on the top of the end cover 33 through a plurality of groups of screws, the right side wall of the installation box 4 is provided with two groups of L-shaped positioning rods 30, the right side wall of the end cover 33 is provided with two groups of positioning rings 31, the two groups of L-shaped positioning rods 30 respectively pass through the two groups of positioning rings 31, the installation box 4 can be disassembled from the end cover 33, when the installation box 4 is installed, firstly, the two groups of L-shaped positioning rods 30 respectively pass through the two groups of positioning rings 31, so as to facilitate the positioning of the installation box 4, the IGBT module protection device comprises an end cover 33 and a box body 1 with a top opening, the outer side wall of the end cover 33 is provided with an upper flange 2, the top end of the outer side wall of the box body 1 is provided with a lower flange, and the upper flange 2 and the lower flange is detachably connected with the plurality of bolts and nuts 3; the device also comprises an installation box 4, a reciprocating rod 5, a spring 6 and a striking plate 7, wherein an installation cavity is arranged in the installation box 4, the bottom of the installation box 4 is communicated with and provided with an installation opening, the left side wall of the installation box 4 is communicated with and provided with an air outlet, the right side wall of the installation box 4 is communicated with and provided with an air inlet, the air inlet is provided with a filter screen 8, the left half area of the bottom in the installation box 4 is provided with a door-shaped ring 9, the left motor 10 is arranged in the door-shaped ring 9, the output end of the left motor 10 is provided with a first bevel gear 11, the left half area of the top in the installation box 4 is provided with a left connecting rod 12, the left connecting rod 12 is provided with a bearing 13, the bearing 13 is in key connection with a rotating shaft 14, the right end of the rotating shaft 14 is provided with a second bevel gear 15 meshed with the first bevel gear 11, the left end of the rotating shaft 14 is provided with an installation plate 16, the outer side wall of the installation plate 16 is provided with a plurality of fan blades 17, and the right connecting rod 18 is arranged in the right half area of the top in the installation box 4, the right connecting rod 18 is provided with a sliding hole, the right end of the reciprocating rod 5 passes through the sliding hole and the spring 6 and then is connected with the striking plate 7, the left end and the right end of the spring 6 are respectively connected with the right connecting rod 18 and the striking plate 7, the hydraulic hammer further comprises a group of balls 24, the inner wall of the sliding hole is provided with an annular groove, most of the area of each group of balls 24 is positioned in the annular groove, each group of balls 24 is in contact with the reciprocating rod 5, the longitudinal section of the outer side wall of the reciprocating rod 5 is quadrilateral, the longitudinal section of the inner side wall of the sliding hole is quadrilateral, the reciprocating rod 5 is prevented from changing in angle, the operation stability is improved, the group of the balls 24 rotates in the moving process of the reciprocating rod 5, the abrasion to the reciprocating rod 5 is reduced, the middle connecting rod 19 is arranged in the right half area of the top in the installation box 4, the bottom end of the middle connecting rod 19 is provided with a right motor 20, the output end of the right motor 20 is provided with a circular plate 21, the edge area of the circular plate 21 is provided with upper teeth 22, the left end of the top of the reciprocating rod 5 is provided with lower teeth 23, the upper teeth 22 are contacted with the lower teeth 23, the installation box 4 is fixed in a welding machine power supply through a plurality of groups of screws, under the mutual matching of the left connecting rod 12, the door-shaped ring 9, the first bevel gear 11, the second bevel gear 15, the bearing 13, the rotating shaft 14 and the installation plate 16, the left motor 10 rotates to enable a plurality of groups of fan blades 17 to rotate, so that outside air enters the installation cavity along the position of the filter screen 8 and then is discharged along an air outlet, the air outlet is provided with a grating plate 29, the grating plate 29 can slow down the air flow rate, the impurities entering the installation box 4 when the left motor 10 stops operating are reduced, the filter screen 8 filters the impurities, the installation box further comprises a plurality of groups of radiating teeth 25, and the installation hole is arranged in the central area of the end cover 33, a transverse plate 26 is arranged at the bottom end of the inner side wall of the mounting hole, a plurality of groups of heat dissipation holes are arranged on the transverse plate 26, heat dissipation cavities are arranged in the plurality of groups of heat dissipation teeth 25, heat dissipation ports are communicated with the bottoms of the plurality of groups of heat dissipation teeth 25, the plurality of groups of heat dissipation ports are respectively arranged at the positions of the plurality of groups of heat dissipation teeth 25, the plurality of groups of heat dissipation teeth 25 are made of aluminum, an IGBT single tube 27 is arranged at the bottom of the transverse plate 26, a plurality of groups of pins 28 connected with the IGBT single tube 27 are arranged at the bottom of the box body 1, the plurality of groups of pins 28 are arranged on a power supply of a welding machine, heat generated in the work process of the IGBT single tube 27 conducts heat conduction along the plurality of groups of heat dissipation teeth 25, heat exchange is conducted at the positions of the plurality of groups of heat dissipation teeth 25 when external air flows in the mounting cavity, under the mutual matching of the upper teeth 22, the lower teeth 23, the middle connecting rod 19, the right connecting rod 18, the spring 6 and the reciprocating rod 5, the right motor 20 rotates to enable the striking plate 7 to strike the filter screen 8 in a reciprocating manner to separate impurities from the filter screen 8, the left half area of the reciprocating rod 5 is provided with the anti-drop ring 32, and when the anti-drop ring 32 is contacted with the right connecting rod 18, the striking plate 7 cannot move rightwards continuously, so that the striking plate 7 is prevented from moving too greatly.

When the installation box 4 is used, the installation box 4 is fixed in a welding machine power supply through a plurality of groups of screws, a plurality of groups of pins 28 are installed on the welding machine power supply, the installation box 4 and an end cover 33 can be disassembled, when the installation box 4 is installed, firstly, two groups of L-shaped positioning rods 30 respectively penetrate through two groups of positioning rings 31 to facilitate the positioning of the installation box 4, under the mutual matching of a left connecting rod 12, a door-shaped ring 9, a first bevel gear 11, a second bevel gear 15, a bearing 13, a rotating shaft 14 and an installation plate 16, a left motor 10 rotates to enable a plurality of groups of fan blades 17 to rotate, so that external air enters the installation cavity along the position of the filter screen 8 and then is discharged along an air outlet, a grating plate 29 can slow down the air flow rate, impurities entering the installation box 4 when the left motor 10 stops running are reduced, heat generated in the work of an IGBT single pipe 27 conducts heat conduction along the plurality of groups of heat dissipation teeth 25, heat exchange is carried out at the plurality of heat dissipation teeth 25 when the external air flows in the installation cavity, the filter screen 8 filters the impurities, the upper teeth 22, a lower teeth 23, a middle connecting rod 19, a right connecting rod 18, a spring 6 and a reciprocating rod 5 are matched with each other, the right motor 20 rotates to enable the filter screen 7 to be prevented from moving to move to enable the filter screen 7 to be contacted with the filter screen 7, and prevent the filter screen 7 from moving to move to the reciprocating plate 7, and move to prevent the reciprocating bar 7 from moving to the reciprocating plate 7,

the electrical components in the document are electrically connected with an external master controller and 220V mains supply, and the master controller can be a computer or other conventional known devices for playing a role in control.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An IGBT module protection device comprises an end cover (33) and a box body (1) with a cavity and an opening at the top, wherein an upper flange (2) is arranged on the outer side wall of the end cover (33), a lower flange is arranged at the top end of the outer side wall of the box body (1), and the upper flange (2) and the lower flange are detachably connected through a plurality of groups of bolts and nuts (3); the method is characterized in that: still include install bin (4), reciprocating lever (5), spring (6) and hit beating board (7), install bin (4) inside is provided with the installation cavity, install bin (4) bottom intercommunication is provided with the installing port, install bin (4) left side wall intercommunication is provided with the gas outlet, install bin (4) right side wall intercommunication is provided with the air inlet, air inlet department is provided with filter screen (8), install bin (4) inside bottom left half district is provided with door type ring (9), door type ring (9) inside is provided with left motor (10), left motor (10) output is provided with first bevel gear (11), install bin (4) inside top left half district is provided with left connecting rod (12), be provided with bearing (13) on left connecting rod (12), bearing (13) key-type connection has pivot (14), pivot (14) right-hand member is provided with second bevel gear (15) with first bevel gear (11) meshing, pivot (14) left end is provided with mounting panel (16), mounting panel (16) lateral wall is provided with multiunit flabellum (17), install bin (4) inside top right half district is provided with right side connecting rod (18), right connecting rod (18) goes up right-hand member (18) is provided with second bevel gear (15) and hits beating hole (6) and hit, hit board (7) and hit after the right-hand member (6) and right-hand member (7) and hit, then the spring (6) and hit board (7) and hit, right-hand member (6) and right-side sliding connection and right-hand member (7) and hit board (6) respectively, then the right-hand member (7) The connecting structure is characterized in that a middle connecting rod (19) is arranged in the right half area of the inner top of the installation box (4), a right motor (20) is arranged at the bottom end of the middle connecting rod (19), a circular plate (21) is arranged at the output end of the right motor (20), upper teeth (22) are arranged in the edge area of the circular plate (21), lower teeth (23) are arranged at the left end of the top of the reciprocating rod (5), and the upper teeth (22) are in contact with the lower teeth (23).

2. The IGBT module protection device according to claim 1, wherein: the novel sliding hole is characterized by further comprising ball (24) groups, wherein annular grooves are formed in the inner wall of the sliding hole, most regions of the balls (24) are located in the annular grooves, the balls (24) are in contact with the reciprocating rod (5), the longitudinal section of the outer side wall of the reciprocating rod (5) is quadrilateral, and the longitudinal section of the inner side wall of the sliding hole is quadrilateral.

3. The IGBT module protection device according to claim 2, characterized in that: still include multiunit heat dissipation tooth (25), end cover (33) central area is provided with the mounting hole, and the lateral wall bottom is provided with diaphragm (26) in the mounting hole, is provided with the multiunit louvre on diaphragm (26), and multiunit heat dissipation tooth (25) are inside all to be provided with the heat dissipation chamber, and multiunit heat dissipation tooth (25) bottom all communicates and is provided with thermovent, multiunit the thermovent is installed respectively in multiunit louvre department, and multiunit heat dissipation tooth (25) are the aluminium material, and diaphragm (26) bottom is provided with IGBT single tube (27), and box (1) bottom is provided with multiunit pin (28) of being connected with IGBT single tube (27).

4. The IGBT module protection device according to claim 3, wherein: a grid plate (29) is arranged at the air outlet.

5. The IGBT module protection device of claim 4, characterized in that: install at the top of end cover (33) through the multiunit screw bottom install bin (4), install bin (4) right side wall is provided with two sets of L type locating levers (30), and end cover (33) right side wall is provided with two sets of holding rings (31), and two sets of L type locating levers (30) pass two sets of holding rings (31) respectively.

6. The IGBT module protection device of claim 5, characterized in that: an anti-drop ring (32) is arranged in the left half area of the reciprocating rod (5).

7. The IGBT module protection device of claim 6, wherein: the end cover (33), the installation box (4) and the box body (1) are all made of plastic materials.