CN115763396B - Antistatic IGBT module - Google Patents
Antistatic IGBT module Download PDFInfo
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- CN115763396B CN115763396B CN202211368664.4A CN202211368664A CN115763396B CN 115763396 B CN115763396 B CN 115763396B CN 202211368664 A CN202211368664 A CN 202211368664A CN 115763396 B CN115763396 B CN 115763396B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 11
- 230000017525 heat dissipation Effects 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
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- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 9
- 239000004065 semiconductor Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
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- 230000000694 effects Effects 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The invention belongs to the field of semiconductor manufacturing, in particular to an anti-static IGBT module, which comprises a base; the base is made of a metal material; a limiting seat is fixedly connected to the middle position of the top surface of the base; the four corners of the top surface of the limit seat are fixedly connected with first copper columns; the top surface of the limiting seat is fixedly connected with a heat-conducting silica gel pad between the first copper columns; the top surface of the base is clamped with a first shell, and two sides of the first shell are provided with symmetrically arranged heat dissipation grooves; the heat dissipation groove is internally fixedly connected with a plurality of heat dissipation fins which are uniformly arranged, the heat dissipation fins at the bottom are in contact with the top surface of the base, the PCB is fixed on the copper column by the screws, and connection between the screws and the ground wire of the PCB is realized, so that static electricity gathered on the PCB or electric leakage generated by an external circuit are led into the base, then are conducted into the shell of the electrical element by the base, and finally are led into the ground by the shell.
Description
Technical Field
The invention belongs to the field of semiconductor manufacturing, and particularly relates to an anti-static IGBT module.
Background
The IGBT is an insulated gate bipolar transistor, in particular to a composite full-control voltage-driven power semiconductor device which is composed of a bipolar triode and an insulated gate factory effect transistor, the IGBT module is a modularized semiconductor product which is formed by bridging and packaging the IGBT and the FWD through a circuit, and the IGBT module is used as the semiconductor product, and static electricity has great influence on the normal work of the IGBT module.
The prior art also proposes solutions, for example, connecting a TVS tube or a resistor with a high resistance between the gate connection terminal and the emitter terminal of the IGBT, so as to protect the IGBT during the transportation and installation of the IGBT and prevent the IGBT module from electrostatic breakdown due to human contact.
Although the anti-static effect of the IGBT is realized through a TVS tube or a resistor with a high resistance value in the prior art, the anti-static effect of the IGBT is only aimed at the situation that the human body generates static electricity to the IGBT module, and in a circuit, the damage of the IGBT module can be caused by the interference of other circuits and even the circuit leakage.
To this end, the present invention provides an antistatic IGBT module.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an anti-static IGBT module, which comprises a base; the base is made of a metal material; a limiting seat is fixedly connected to the middle position of the top surface of the base; the four corners of the top surface of the limit seat are fixedly connected with first copper columns; the top surface of the limiting seat is fixedly connected with a heat-conducting silica gel pad between the first copper columns; the top surface of the base is clamped with a first shell, and two sides of the first shell are provided with symmetrically arranged heat dissipation grooves; a plurality of radiating fins which are uniformly arranged are fixedly connected in the radiating groove, and the radiating fins positioned at the bottom are contacted with the top surface of the base; in the process of installation and transportation of the IGBT module, electrostatic breakdown of the IGBT module is caused due to artificial contact or other external conditions, and in order to prevent the IGBT module from being damaged due to electrostatic breakdown, the problem can be solved by using the embodiment of the invention, firstly, when a worker installs a PCB board of the IGBT module, the PCB board needs to be placed on the surface of a heat-conducting silica gel pad in a limiting seat, then the PCB board is fixed on a copper column through a screw, and the screw is connected with a ground wire of the PCB board, so that static electricity gathered on the PCB board or electric leakage generated by an external circuit is led into a base, and then the base is conducted into a shell of an electric element, finally, the shell is led into the ground, and meanwhile, in the process of operation of the IGBT, heat generated by the PCB board can be transferred to the base through the heat-conducting silica gel pad, and then transferred to a heat-radiating fin in a heat-radiating groove through the base, and the heat radiating area is increased through a plurality of heat-radiating fins, so that heat radiation is assisted.
Preferably, four corners of the base are provided with first threaded holes; the bottom surface of the base is fixedly connected with a conical rubber sleeve at the position of the first threaded hole; the bottom of the conical rubber sleeve is provided with a through hole; during operation, when the workman needs to install the IGBT module, can be earlier with the toper rubber sleeve in base bottom surface four corners, in the hole site that needs to install, the workman screws in again this moment in with the screw hole, accomplish the fixed to the IGBT module, and then made things convenient for the workman to fix a position when installing the IGBT module, the IGBT module is because can be used to in the control of electrical components such as motor, so together screw in the mounting hole with toper rubber sleeve and screw, in the increase screw and mounting hole between the tightness, also can reduce because the vibrations of power components such as motor, take place not hard up between screw and the mounting hole that leads to.
Preferably, a plurality of second copper columns which are uniformly arranged are fixedly connected around the top surface of the base and the first shell; the top surface of the second copper column is fixedly provided with a second threaded hole; during operation, when the external circuit of IGBT module is installed, the workman can be connected the earth connection of external circuit through the screw with the second screw hole of copper post top surface, static or electric leakage that external circuit produced all accessible copper post conduction to the base from this to realize the protection to external circuit.
Preferably, the top surface of the first shell is fixedly connected with three uniformly arranged connecting seats, and the connecting seats are arranged in a hollow structure; a connecting column is arranged in the connecting seat; the top surface of the connecting seat is in threaded connection with a threaded rod; the bottom surface of the threaded rod is fixedly connected with a pressing plate in the connecting seat; an insertion hole is formed in one side surface of the connecting seat; during operation, because three main terminals on the PCB board in the IGBT module are in contact communication with the connecting column, when the IGBT module is communicated with an external circuit, a worker can insert a wire into the connecting seat through the insertion hole, at the moment, the worker rotates the threaded rod again, presses down the pressing plate through the threaded rod, and finally presses the wire tightly on the surface of the connecting column through the pressing plate, so that wiring of the worker is facilitated, and the installation efficiency of the worker is improved.
Preferably, a groove is formed in the bottom surface of the pressing plate; the top surface of the connecting column is provided with a bulge matched with the groove, and the bulge is made of magnetic materials; during operation, after the wire is inserted the connecting seat through the pilot hole, the wire can be adsorbed to protruding surface, and workman rotatory threaded rod this moment, the recess and the wire contact of screw rod bottom surface to coil the wire at protruding surface curls, thereby has increased the area of contact between wire and the arch, and then has improved the stability that wire and spliced pole are connected, has reduced the resistance of junction.
Preferably, a first chute is formed in the bottom surface of the protrusion; the top surface of the connecting column is fixedly connected with a sliding rod at a position corresponding to the first sliding groove; the sliding rod is in sliding connection with the first sliding groove; a first spring is fixedly connected between the connecting column and the bulge, and the first spring is sleeved outside the sliding rod; during operation, after the IGBT module is used for a long time, the clamp plate can produce not hard up between protruding for be connected between wire and the spliced pole no longer firm, first spring just can continuously extrude protruding because elasticity this moment, makes protruding can continue to push up the wire at the tank bottom of recess, thereby guarantees the stability of being connected between wire and the spliced pole.
Preferably, the sleeve is fixedly connected to the side surface of the connecting seat at the position corresponding to the insertion hole; a clamping groove is formed in the side surface of the sleeve; a pair of arc plates which are piled up are arranged in the sleeve; a plurality of spring plates which are uniformly arranged are fixedly connected between the inner walls of the sleeve; during operation, after the wiring operation of wire is accomplished to the workman, can be with remaining outside wire of spliced eye, between the arc of sleeve inside is plugged into through the draw-in groove, the rethread shell fragment presses the arc at the wire surface, and then accomplishes the fixed to the outside wire of spliced eye, prevents that the workman from involving the wire in the installation after, makes the wire pulled out from inserting.
Preferably, one end of the first shell is fixedly connected with a second shell; the top surface of the second shell is fixedly connected with a pair of connecting frames; a pair of plugs are arranged in the connecting frame; during operation, the workman inserts the connector plug of power in the inside plug of connecting frame when installing the power to through the extrusion of the inner wall of connecting frame to the outer wall of power connector, accomplish the fixed to the power connector, both convenient and workman plug test IGBT module, also guaranteed the stability of later long-term during the use, power junction.
Preferably, a second chute is formed in the top surface of the connecting frame; the second sliding groove is connected with a compression bar in a sliding way; a second spring is fixedly connected between the pressure lever and the second chute; an air chamber is arranged at the bottom of the second chute; the bottom surface of the compression bar is fixedly connected with a push plate in the air chamber, and the push plate is in sliding connection with the air chamber; the inner wall of the connecting frame is provided with an air outlet hole at a position corresponding to the air chamber; during operation, when the workman inserts the power connector in the linking bridge, the top lateral wall of power connector can extrude the depression bar, makes the depression bar drive the push pedal to the bottom surface motion of air chamber to even tensile second spring, the push pedal can extrude the gas in the air chamber from the venthole this moment, blows the junction to power connector and plug, prevents the power connector and plug contact's in the twinkling of an eye out arc discharge, and then reduces plug damage probability, extension plug's life.
Preferably, the inner wall of the connecting frame is fixedly connected with a baffle plate at the position corresponding to the air hole; the top surface of the partition board is provided with an air guide hole at a position corresponding to the plug; the air guide hole is communicated with the air outlet hole; when the push plate is pressed down, gas in the gas chamber is discharged through the gas outlet holes, and the gas is blown out along the edge of the plug by the gas guide holes, so that the probability of blowing out the electric arc is further improved.
The beneficial effects of the invention are as follows:
1. according to the antistatic IGBT module, the PCB is fixed on the copper column through the screw, so that the screw is connected with the ground wire of the PCB, static electricity gathered on the PCB or electric leakage generated by an external circuit are led into the base, then conducted into the shell of an electric element through the base, finally led into the ground through the shell, and meanwhile, when the IGBT works, heat generated by the PCB is obvious due to the fact that the passing current is large, at the moment, heat generated by the PCB can be transferred to the base through the heat-conducting silica gel pad and then transferred to the heat-radiating fins in the heat-radiating groove through the base, and the heat-radiating area is increased through the plurality of heat-radiating fins, so that heat radiation is assisted.
2. According to the anti-static IGBT module, the pressing plate is pressed down through the threaded rod, and finally the conducting wire is tightly pressed on the surface of the connecting column by the pressing plate, so that wiring of workers is facilitated, and the installation efficiency of the workers is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of a limiting seat according to the present invention;
FIG. 3 is a schematic view of the structure of the conical rubber sleeve of the present invention;
FIG. 4 is a schematic view of a connecting seat according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view of the structure of the air chamber of the present invention;
FIG. 7 is a schematic view of the structure of the air vent in the present invention;
in the figure: 1. a base; 2. a limit seat; 3. a first copper pillar; 4. a thermally conductive silicone pad; 5. a first housing; 6. a heat sink; 7. a heat radiation fin; 8. a first threaded hole; 9. a conical rubber sleeve; 10. a through hole; 11. a second copper pillar; 12. a second threaded hole; 13. a connecting seat; 14. a connecting column; 15. a threaded rod; 16. a pressing plate; 17. an insertion hole; 18. a groove; 19. a protrusion; 20. a first chute; 21. a slide bar; 22. a first spring; 23. a sleeve; 24. a clamping groove; 25. an arc-shaped plate; 26. a spring plate; 27. a second housing; 28. a connection frame; 29. a plug; 30. a second chute; 31. a compression bar; 32. a gas chamber; 33. a push plate; 34. an air outlet hole; 35. a partition plate; 36. an air guide hole; 37. and a second spring.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 2, an anti-static IGBT module according to an embodiment of the invention includes a base 1; the base 1 is made of a metal material; a limiting seat 2 is fixedly connected to the middle position of the top surface of the base 1; the four corners of the top surface of the limit seat 2 are fixedly connected with first copper columns 3; the top surface of the limiting seat 2 is fixedly connected with a heat-conducting silica gel pad 4 between the first copper columns 3; the top surface of the base 1 is clamped with a first shell 5, and two sides of the first shell 5 are respectively provided with a pair of symmetrically arranged heat dissipation grooves 6; a plurality of radiating fins 7 which are uniformly arranged are fixedly connected in the radiating groove 6, and the radiating fins 7 positioned at the bottom are contacted with the top surface of the base 1; in the process of installation and transportation of the IGBT module, electrostatic breakdown of the IGBT module is caused due to artificial contact or other external conditions, and in order to prevent the IGBT module from being damaged due to electrostatic breakdown, the problem can be solved by using the embodiment of the invention, firstly, when a worker installs a PCB board of the IGBT module, the PCB board needs to be placed on the surface of the heat-conducting silica gel pad 4 in the limiting seat 2, then the PCB board is fixed on a copper column through screws, and the screws are connected with the ground wire of the PCB board, so that static electricity collected on the PCB board or electric leakage generated by an external circuit are led into the base 1, then the base 1 is conducted into a shell of an electric element, finally the shell is led into the ground, and meanwhile, in the process of operation of the IGBT, the heat is obvious due to larger passing current, the heat generated by the PCB board can be transferred to the base 1 through the heat-conducting silica gel pad 4 and then transferred to the heat-radiating fins 7 in the heat-radiating grooves 6, and the heat radiation area is increased through the plurality of heat-radiating fins 7, so that the heat radiation is assisted.
As shown in fig. 2 to 3, the four corners of the base 1 are provided with first threaded holes 8; the bottom surface of the base 1 is fixedly connected with a conical rubber sleeve 9 at the position of the first threaded hole 8; the bottom of the conical rubber sleeve 9 is provided with a through hole 10; during operation, when the workman needs to install the IGBT module, can be earlier with the toper rubber sleeve 9 in base 1 bottom surface four corners, pack into the hole site that needs to install, the workman is screwed in screw in first screw hole 8 this moment again, accomplish the fixed to the IGBT module, and then made things convenient for the workman to fix a position when installing the IGBT module, the IGBT module is because can be used to in the control of electrical components such as motor, so together screw in the mounting hole with toper rubber sleeve 9 with the screw, in the increase screw and the mounting hole between the tightness, also can reduce because the vibrations of power component such as motor, take place not hard up between screw and the mounting hole that leads to.
As shown in fig. 1 and fig. 4, a plurality of second copper columns 11 which are uniformly arranged are fixedly connected around the top surface of the base 1 and the first shell 5; the top surface of the second copper column 11 is fixedly provided with a second threaded hole 12; during operation, when the external circuit of the IGBT module is installed, a worker can connect the grounding wire of the external circuit with the second threaded hole 12 on the top surface of the copper column through a screw, and static electricity or electric leakage generated by the external circuit can be conducted to the base 1 through the copper column, so that the protection of the external circuit is realized.
As shown in fig. 1 and fig. 4, the top surface of the first housing 5 is fixedly connected with three uniformly arranged connecting seats 13, and the connecting seats 13 are arranged in a hollow structure; a connecting column 14 is arranged in the connecting seat 13; the top surface of the connecting seat 13 is in threaded connection with a threaded rod 15; the bottom surface of the threaded rod 15 is fixedly connected with a pressing plate 16 inside the connecting seat 13; an insertion hole 17 is formed in one side surface of the connecting seat 13; during operation, three main terminals on the PCB board in the IGBT module are in contact communication with the connecting column 14, so that a worker can insert a wire into the connecting seat 13 through the inserting hole 17 when the IGBT module is communicated with an external circuit, at the moment, the worker rotates the threaded rod 15 again, presses the pressing plate 16 downwards through the threaded rod 15, and finally the pressing plate 16 tightly presses the wire on the surface of the connecting column 14, thereby facilitating wiring of the worker and improving the installation efficiency of the worker.
As shown in fig. 1 and 4, a groove 18 is formed on the bottom surface of the pressing plate 16; the top surface of the connecting column 14 is provided with a protrusion 19 matched with the groove 18, and the protrusion 19 is made of magnetic material; when the wire is inserted into the connecting seat 13 through the inserting hole 17, the wire is adsorbed to the surface of the bulge 19, at the moment, the worker rotates the threaded rod 15, the groove 18 on the bottom surface of the threaded rod is contacted with the wire, and the wire is curled and coiled on the surface of the bulge 19, so that the contact area between the wire and the bulge 19 is increased, the stability of connection between the wire and the connecting column 14 is improved, and the resistance value of the junction is reduced.
As shown in fig. 1 and 4, a first chute 20 is formed on the bottom surface of the protrusion 19; the top surface of the connecting column 14 is fixedly connected with a sliding rod 21 at a position corresponding to the first sliding groove 20; the sliding rod 21 is in sliding connection with the first sliding groove 20; a first spring 22 is fixedly connected between the connecting column 14 and the bulge 19, and the first spring 22 is sleeved outside the slide bar 21; when the IGBT module is used for a long time, looseness can be generated between the pressing plate 16 and the protrusions 19, so that connection between the wires and the connecting columns 14 is not stable, and at the moment, the first springs 22 can continuously press the protrusions 19 due to elasticity, so that the protrusions 19 can continuously push the wires against the bottoms of the grooves 18, and the connection stability between the wires and the connecting columns 14 is ensured.
As shown in fig. 4 to 5, the side surface of the connecting seat 13 is fixedly connected with a sleeve 23 at a position corresponding to the insertion hole 17; a clamping groove 24 is formed in the side surface of the sleeve 23; a pair of arc plates 25 stacked in a set are arranged in the sleeve 23; a plurality of spring plates 26 which are uniformly arranged are fixedly connected between the inner walls of the sleeve 23 of the arc-shaped plate 25; when the wire connecting device is in operation, after the worker finishes the wire connecting operation of the wires, the wires left outside the inserting holes 17 can be plugged into the space between the arc plates 25 inside the sleeve 23 through the clamping grooves 24, the arc plates 25 are pressed on the surfaces of the wires through the elastic sheets 26, and then the wires outside the inserting holes 17 are fixed, so that the wires are prevented from being involved in the subsequent installation process by the worker, and the wires are pulled out from the inserting process.
As shown in fig. 1, a second housing 27 is fixedly connected to one end of the first housing 5; a pair of connecting frames 28 are fixedly connected to the top surface of the second shell 27; a pair of plugs 29 are installed inside the connecting frame 28; during operation, the workman inserts the connector of power in the inside plug 29 of connecting frame 28 when installing the power to through the extrusion of the inner wall of connecting frame 28 to the outer wall of power connector, accomplish the fixed to the power connector, both convenient and workman plug test IGBT module has also guaranteed the stability of later long-term during the use, power junction.
Example two
As shown in fig. 1, 6 and 7, comparative example one, in which another embodiment of the present invention is: a second chute 30 is formed on the top surface of the connecting frame 28; the second chute 30 is slidably connected with a compression bar 31; a second spring 37 is fixedly connected between the compression bar 31 and the second chute (30); an air chamber 32 is arranged at the bottom of the second chute 30; the bottom surface of the compression bar 31 is fixedly connected with a push plate 33 in the air chamber 32, and the push plate 33 is in sliding connection with the air chamber 32; the inner wall of the connecting frame 28 is provided with an air outlet hole 34 at a position corresponding to the air chamber 32; when the power connector is inserted into the connecting frame 28 by a worker in operation, the top side wall of the power connector can squeeze the compression bar 31, so that the compression bar 31 drives the push plate 33 to move towards the bottom surface of the air chamber 32, and the second spring 37 is stretched in a connecting mode, at the moment, the push plate 33 can extrude air in the air chamber 32 from the air outlet hole 34 and blow the air to the connection position of the power connector and the plug 29, the power connector is prevented from being in contact with the plug 29, the damage probability of the plug 29 is further reduced, and the service life of the plug 29 is prolonged.
As shown in fig. 7, a partition plate 35 is fixedly connected to the inner wall of the connection frame 28 at a position corresponding to the air hole; the top surface of the partition plate 35 is provided with an air guide hole 36 at a position corresponding to the plug 29; the air guide holes 36 are communicated with the air outlet holes 34; when the push plate 33 is pressed down in operation, the gas in the gas chamber 32 is discharged through the gas outlet holes 34, and the gas is blown out along the edge of the plug 29 by the gas guide holes 36, so that the probability of blowing out the arc is further improved.
In the process of installation and transportation of the IGBT module, electrostatic breakdown of the IGBT module is caused due to artificial contact or other external conditions, and in order to prevent the IGBT module from being damaged due to electrostatic breakdown, the problem can be solved by using the embodiment of the invention, firstly, when a worker installs a PCB board of the IGBT module, the PCB board needs to be placed on the surface of the heat-conducting silica gel pad 4 in the limiting seat 2, then the PCB board is fixed on a copper column through screws, and the screws are connected with the ground wire of the PCB board, so that static electricity collected on the PCB board or electric leakage generated by an external circuit are led into the base 1, then the base 1 is conducted into a shell of an electric element, finally the shell is led into the ground, and meanwhile, in the process of operation of the IGBT, the heat is obvious due to larger passing current, the heat generated by the PCB board can be transferred to the base 1 through the heat-conducting silica gel pad 4 and then transferred to the heat-radiating fins 7 in the heat-radiating grooves 6, and the heat radiation area is increased through the plurality of heat-radiating fins 7, so that the heat radiation is assisted.
When the IGBT module needs to be installed, the conical rubber sleeve 9 at four corners of the bottom surface of the base 1 can be plugged into the hole site needing to be installed, at the moment, the worker screws the screw into the first threaded hole 8, so that the IGBT module is fixed, and further the IGBT module is convenient to position when being installed, meanwhile, the IGBT module can be used for controlling electric elements such as a motor, and the like, the conical rubber sleeve 9 and the screw are screwed into the installation hole together, the tightness between the screw and the installation hole is improved, and meanwhile, the vibration of power elements such as the motor can be reduced, and looseness occurs between the screw and the installation hole.
When a worker installs the external circuit of the IGBT module, the grounding wire of the external circuit can be connected with the second threaded hole 12 on the top surface of the copper column through a screw, and static electricity or electric leakage generated by the external circuit can be conducted to the base 1 through the copper column, so that the protection of the external circuit is realized.
Because three main terminals on the PCB board in the IGBT module are in contact communication with the connecting column 14, when the IGBT module is communicated with an external circuit, a worker can insert a wire into the connecting seat 13 through the inserting hole 17, at the moment, the worker rotates the threaded rod 15 again, presses the pressing plate 16 downwards through the threaded rod 15, and finally the pressing plate 16 tightly presses the wire on the surface of the connecting column 14, so that the wiring of the worker is facilitated, and the installation efficiency of the worker is improved.
After the wire is inserted into the connecting seat 13 through the insertion hole 17, the wire is adsorbed to the surface of the protrusion 19, at this time, the worker rotates the threaded rod 15, the groove 18 on the bottom surface of the threaded rod is contacted with the wire, and the wire is curled and coiled on the surface of the protrusion 19, so that the contact area between the wire and the protrusion 19 is increased, the stability of connection between the wire and the connecting column 14 is improved, and the resistance value of the junction is reduced.
After the IGBT module is used for a long time, the pressing plate 16 and the protrusion 19 will loosen, so that the connection between the wire and the connection post 14 is not stable, and at this time, the first spring 22 will continuously press the protrusion 19 due to elasticity, so that the protrusion 19 can continuously push the wire against the bottom of the groove 18, thereby ensuring the stability of the connection between the wire and the connection post 14.
After the worker completes the wiring operation of the wires, the wires left outside the insertion holes 17 can be plugged between the arc plates 25 inside the sleeve 23 through the clamping grooves 24, the arc plates 25 are pressed on the surfaces of the wires through the elastic sheets 26, and then the wires outside the insertion holes 17 are fixed, so that the wires are prevented from being involved in the subsequent installation process by the worker, and the wires are pulled out from the insertion process.
When a worker installs a power supply, the connector of the power supply can be inserted into the plug 29 inside the connecting frame 28, and the power supply connector is fixed by extruding the outer wall of the power supply connector through the inner wall of the connecting frame 28, so that the IGBT module is conveniently tested by inserting and pulling the IGBT module by the worker, and the stability of the power supply connecting position is ensured when the IGBT module is used for a long time later.
When the workman inserts the power connector in the connection frame 28, the top lateral wall of power connector can extrude depression bar 31, makes depression bar 31 drive push pedal 33 to the bottom surface motion of air chamber 32, and stretch second spring 37 in parallel, and push pedal 33 can extrude the gas in the air chamber 32 from venthole 34 this moment, blows the junction to power connector and plug 29, prevents the power connector and plug 29 contact's in the twinkling of an eye and goes out arc discharge, and then reduces plug 29 damage probability, extension plug 29's life.
When the push plate 33 is pressed down, the air in the air chamber 32 is discharged through the air outlet holes 34, and the air is blown out along the edge of the plug 29 by the air guide holes 36, so that the probability of blowing out the electric arc is further improved.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. An antistatic IGBT module, which is characterized in that: comprises a base (1); the base (1) is made of a metal material; a limit seat (2) is fixedly connected to the middle part of the top surface of the base (1); the four corners of the top surface of the limit seat (2) are fixedly connected with first copper columns (3); the top surface of the limiting seat (2) is fixedly connected with a heat-conducting silica gel pad (4) between the first copper columns (3); the top surface of the base (1) is clamped with a first shell (5), and symmetrically arranged heat dissipation grooves (6) are formed in two sides of the first shell (5); a plurality of radiating fins (7) which are uniformly arranged are fixedly connected in the radiating groove (6), and the radiating fins (7) positioned at the bottom are contacted with the top surface of the base (1);
three uniformly arranged connecting seats (13) are fixedly connected to the top surface of the first shell (5), and the positions of the connecting seats (13) are hollow; a connecting column (14) is arranged in the connecting seat (13); the top surface of the connecting seat (13) is in threaded connection with a threaded rod (15); the bottom surface of the threaded rod (15) is fixedly connected with a pressing plate (16) inside the connecting seat (13); an inserting hole (17) is formed in one side surface of the connecting seat (13);
a groove (18) is formed in the bottom surface of the pressing plate (16); the top surface of the connecting column (14) is provided with a bulge (19) matched with the groove (18), and the bulge (19) is made of magnetic materials;
a first chute (20) is formed in the bottom surface of the bulge (19); the top surface of the connecting column (14) is fixedly connected with a sliding rod (21) at a position corresponding to the first sliding groove (20); the sliding rod (21) is in sliding connection with the first sliding groove (20); a first spring (22) is fixedly connected between the connecting column (14) and the bulge (19), and the first spring (22) is sleeved outside the sliding rod (21);
the sleeve (23) is fixedly connected to the side surface of the connecting seat (13) at the position corresponding to the insertion hole (17); a clamping groove (24) is formed in the side surface of the sleeve (23); a pair of arc plates (25) which are piled up are arranged in the sleeve (23); a plurality of uniformly arranged elastic sheets (26) are fixedly connected between the inner walls of the sleeve (23) by the arc-shaped plates (25);
one end of the first shell (5) is fixedly connected with a second shell (27); the top surface of the second shell (27) is fixedly connected with a pair of connecting frames (28); a pair of plugs (29) are arranged in the connecting frame (28);
a second chute (30) is formed in the top surface of the connecting frame (28); a compression bar (31) is connected in a sliding way in the second sliding groove (30); a second spring (37) is fixedly connected between the compression bar (31) and the second chute (30); an air chamber (32) is arranged at the bottom of the second chute (30); the bottom surface of the compression bar (31) is fixedly connected with a push plate (33) in the air chamber (32), and the push plate (33) is in sliding connection with the air chamber (32); and an air outlet hole (34) is formed in the inner wall of the connecting frame (28) at a position corresponding to the air chamber (32).
2. The anti-static IGBT module of claim 1 wherein: four corners of the base (1) are provided with first threaded holes (8); the bottom surface of the base (1) is fixedly connected with a conical rubber sleeve (9) at the position of the first threaded hole (8); the bottom of the conical rubber sleeve (9) is provided with a through hole (10).
3. The anti-static IGBT module of claim 2 wherein: a plurality of second copper columns (11) which are uniformly arranged are fixedly connected around the top surface of the base (1) and the first shell (5); the top surface of the second copper column (11) is fixedly provided with a second threaded hole (12).
4. The anti-static IGBT module of claim 1 wherein: the inner wall of the connecting frame (28) is fixedly connected with a baffle plate (35) at a position corresponding to the air hole; the top surface of the partition plate (35) is provided with an air guide hole (36) at a position corresponding to the plug (29); the air guide hole (36) is communicated with the air outlet hole (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211368664.4A CN115763396B (en) | 2022-11-03 | 2022-11-03 | Antistatic IGBT module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211368664.4A CN115763396B (en) | 2022-11-03 | 2022-11-03 | Antistatic IGBT module |
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| CN115763396A CN115763396A (en) | 2023-03-07 |
| CN115763396B true CN115763396B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211368664.4A Active CN115763396B (en) | 2022-11-03 | 2022-11-03 | Antistatic IGBT module |
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| CN (1) | CN115763396B (en) |
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|---|---|
| CN115763396A (en) | 2023-03-07 |
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