CN219499867U

CN219499867U - High-efficient heat abstractor of IGBT module

Info

Publication number: CN219499867U
Application number: CN202320286244.5U
Authority: CN
Inventors: 骆涛
Original assignee: Shenzhen Naisite Energy Technology Co ltd
Current assignee: Shenzhen Naisite Energy Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-08-08
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to the technical field of IGBT heat dissipation and discloses an efficient heat dissipation device for an IGBT module, which comprises an air duct frame and a bottom plate, wherein the air duct frame is clamped on the upper surface of the bottom plate; through the cooperation between bottom plate, wind channel frame, dust cover, dustproof grid, expand fan housing and the air-out otter board, the gas tightness after bottom plate and the concatenation of wind channel frame is better, can effectively prevent that waste heat from dispelling and causing the influence to other devices, the air-out otter board has improved the stability of whole device, and dustproof grid can isolate most dust in the air, have better adsorptivity and permeability, reduce the influence of dust to the device, expand fan housing and expand the wind that radiator fan blows out, thereby accelerate radiating efficiency, multiunit first radiating fin and multiunit second radiating fin have improved the heat conduction effect to IGBT power module, with the air current that the wind-guiding piece formed with the strong wind district improves the export efficiency of waste heat, thereby improve whole radiating efficiency.

Description

High-efficient heat abstractor of IGBT module

Technical Field

The utility model relates to the technical field of IGBT heat dissipation, in particular to an efficient heat dissipation device for an IGBT module.

Background

In the application field of power supply equipment technology, the device temperature rise of the medium-high power supply equipment is definitely required to ensure the normal operation of the equipment. As a power semiconductor device playing an important role in power supply equipment, a modularized IGBT (hereinafter referred to as an IGBT power module) is one of the devices with the largest loss in a system, so that the modularized IGBT power module is also one of the devices with the largest heating value, if no effective heat dissipation measures are available, the temperature of a core wafer of the IGBT power module is extremely easy to reach or even exceed the rated temperature upper limit of the devices, so that the devices are thermally invalid and finally damaged, and the current heat dissipation mode of the IGBT power module is mainly forced air cooling by a fan;

in the prior art, publication No.: the utility model in China of CN211792656U discloses a high-efficiency heat dissipation device, which comprises a shell, IGBT modules, a capacitor module, a fan and a radiator, wherein the shell comprises an air inlet and an air outlet, the capacitor module is arranged at the air inlet, the fan is arranged at the air outlet, the fan blows air outwards from the air outlet, and the radiator is used for dissipating heat of the IGBT modules.

According to the technical scheme, the air duct is utilized for radiating, but the air tightness of the air duct structure is poor, partial radiating air quantity is lost from the air duct, so that channeling heat of different power units in the equipment is caused, meanwhile, dust in the air can be absorbed simultaneously by the radiating fan in the air sucking process, the normal working performance of electronic components is influenced, and even the components are damaged, so that the high-efficiency radiating device of the IGBT module needs to be provided.

Disclosure of Invention

The utility model aims to provide an efficient heat dissipation device for an IGBT module, which improves the tightness of a heat dissipation channel of the IGBT module, prevents external dust from being brought in by a heat dissipation fan, and reduces the influence of the dust on devices so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-efficient heat abstractor of IGBT module, includes wind channel frame and bottom plate, wind channel frame joint is at the upper surface of bottom plate, the upper surface welding of bottom plate has multiunit third fixture block, multiunit second draw-in groove has been seted up to the lower surface of wind channel frame, and multiunit third fixture block respectively with multiunit second draw-in groove joint, one side joint of wind channel frame has the fan housing, and one side of fan housing through multiunit fixed screw fixedly connected with support body, one side of the relative fan housing of support body is through multiunit fixed screw fixedly connected with dust cover, multiunit fresh air inlet has been seted up to one side of the relative support body of dust cover, and the bottom of dust cover inner chamber all bonds there is the stopper, dust grille and fixed frame are installed to the dust cover inner chamber symmetry of wind channel frame is provided with multiunit first heat radiation fin and multiunit second heat radiation fin.

Preferably, a plurality of groups of IGBT power modules are mounted on the upper surface of the air duct frame, a plurality of groups of reinforcing ribs are welded on the upper surface of the air duct frame, and the plurality of groups of reinforcing ribs are respectively staggered with the plurality of groups of IGBT power modules.

Preferably, the upper surface of bottom plate installs three sets of air guide blocks, and three sets of air guide blocks all are the triangle setting, and three sets of air guide blocks all are the cavity setting, and three sets of air guide block inner chamber all are poured with the coolant liquid.

Preferably, the other side of the air duct frame is hinged with an air outlet screen plate through a plurality of groups of hinges, a plurality of groups of air outlet holes are formed in one side of the air outlet screen plate, and the plurality of groups of air outlet holes are arranged in a rectangular array.

Preferably, two groups of first clamping blocks are welded on one side of the air outlet screen plate, protruding blocks are uniformly formed on two adjacent sides of the air outlet screen plate and the two groups of first clamping blocks, two groups of third clamping grooves are formed on one side of the bottom plate, and the two groups of first clamping blocks are respectively clamped with the two groups of third clamping grooves.

Preferably, the air outlet port of the air expansion cover is welded with a plurality of groups of second clamping blocks, the plurality of groups of second clamping blocks are arranged in a rectangular array, a plurality of groups of first clamping grooves are formed in one side of the air duct frame, and the plurality of groups of second clamping blocks are respectively clamped with the plurality of groups of first clamping grooves.

Preferably, two sets of ventilation holes are formed in one side of the frame body, heat dissipation fans are arranged in the two sets of ventilation holes, and two sets of ventilation holes are respectively communicated with the fan cover and the dust cover.

Preferably, the inner cavity of the air duct frame is provided with three groups of strong wind areas, the three groups of strong wind areas are respectively and correspondingly arranged with three groups of air guide blocks, and the heights of the three groups of air guide blocks are half of the height of the air duct frame.

Preferably, the plurality of groups of first heat dissipation fins are all arranged between two adjacent groups of air guide blocks, the plurality of groups of second heat dissipation fins are all arranged at the air inlet and the air outlet of the air duct frame respectively, the plurality of groups of first heat dissipation fins are arranged in parallel at equal intervals, and the plurality of groups of second heat dissipation fins are arranged in parallel at equal intervals.

Preferably, two groups of bonding plates are bonded on the lower surface of the bottom plate, the dustproof grating is an activated carbon grating, and the fixing frame is a rectangular frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the bottom plate, the air duct frame, the dust cover, the dust-proof grille, the air expansion cover and the air outlet screen plate are matched, so that the air tightness of the bottom plate and the air duct frame after being spliced is good, the influence of waste heat on other devices can be effectively prevented, the air outlet screen plate improves the stability of the whole device, the dust-proof grille can isolate most dust in air, has good adsorptivity and permeability, the influence of dust on the devices is reduced, the air expansion cover expands the air blown by the heat-dissipating fan, the heat-dissipating efficiency is accelerated, the heat-conducting effect of the IGBT power module is improved by the plurality of groups of first heat-dissipating fins and the plurality of groups of second heat-dissipating fins, the heat-dissipating efficiency is improved by the air flow formed by the air guide blocks and the strong air area, and the whole heat-dissipating efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of an exploded construction of the present utility model;

FIG. 3 is a schematic view of the air duct frame inner structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 5 is a schematic diagram of a heat dissipation fan according to the present utility model;

FIG. 6 is a schematic view of a diffuser cap according to the present utility model;

fig. 7 is a schematic view of the dust cap of the present utility model.

In the figure: 1. an air duct frame; 2. a bottom plate; 3. an air outlet screen plate; 31. an air outlet hole; 32. a first clamping block; 33. a bump; 4. a wind expansion cover; 41. a second clamping block; 5. a frame body; 51. a vent hole; 6. a dust cover; 61. an air inlet hole; 7. an IGBT power module; 8. reinforcing ribs; 9. an air guide block; 10. a first heat sink fin; 11. a second heat sink fin; 12. an adhesive plate; 13. a first clamping groove; 14. a second clamping groove; 15. a strong wind area; 16. a third clamping block; 17. a third clamping groove; 18. a set screw; 19. a heat radiation fan; 20. a dust-proof grille; 21. a fixed frame; 22. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a high-efficient heat abstractor of IGBT module, including wind channel frame 1 and bottom plate 2, wind channel frame 1 joint is at the upper surface of bottom plate 2, the upper surface welding of bottom plate 2 has multiunit third fixture block 16, multiunit second draw-in groove 14 has been seted up to the lower surface of wind channel frame 1, and multiunit third fixture block 16 respectively with multiunit second draw-in groove 14 joint, one side joint of wind channel frame 1 has the fan housing 4, and one side of fan housing 4 passes through multiunit set screw 18 fixedly connected with support body 5, one side of the opposite fan housing 4 of support body 5 passes through multiunit set screw 18 fixedly connected with dust cover 6, multiunit inlet opening 61 has been seted up to one side of the opposite support body 5 of dust cover 6, and the bottom of dust cover 6 inner chamber all bonds stopper 22, dust cover 6 inner chamber installs dust grille 20 and fixed frame 21, the inner chamber symmetry of wind channel frame 1 is provided with multiunit first heat radiation fin 10 and multiunit second heat radiation fin 11.

During the use, fix the bottom plate 2 in the mounted position through the bonding plate 12, the embedding dustproof grille 20 in the dust cover 6, and fix the position with dustproof grille 20 with fixed frame 21, all install cooling fan 19 in the two sets of ventilation holes 51 of support body 5, install dust cover 6 and fan housing 4 in the both sides of support body 5 respectively through multiunit fixed screw 18, simultaneously wind channel frame 1 passes through multiunit second fixture block 41 and multiunit first draw-in groove 13 and fan housing 4 joint, again with wind channel frame 1 through multiunit second fixture block 14 and the multiunit third fixture block 16 joint of bottom plate 2, avoid hot-blast influence other devices, accomplish wind channel heat abstractor's assembly, when dispelling the heat, two sets of cooling fan 19 drive air flow by multiunit inlet 61 get into, block dust outside through dustproof grille 20, avoid the dust to bring into in the equipment and cause the influence to other devices, thereby make the air current of dust-free air current get into wind channel frame 1 inner chamber through fan housing 4, through multiunit first heat dissipation fin 10 and multiunit second heat dissipation fin 11 to IGBT power module 7 on the upper surface of frame 1, the air current is carried by force, and the air current carries out the air current is strong to influence other devices, and the air current flow rate is high through air guide block 9 when the air guide piece is passed through wind guide piece 9, the air guide piece is cooled down by the air guide piece is high-out the air flow rate is cooled down by the air guide piece, the air guide piece is 9, the air flow rate is improved, and the air flow rate is cooled down by the air guide piece is cooled down, and has been cooled down.

The upper surface mounting of wind channel frame 1 has multiunit IGBT power module 7, and the upper surface welding of wind channel frame 1 has multiunit strengthening rib 8, multiunit strengthening rib 8 is the staggered arrangement with multiunit IGBT power module 7 respectively, has improved the bulk strength of wind channel frame 1 through strengthening rib 8.

The upper surface mounting of bottom plate 2 has three wind-guiding piece 9, and three wind-guiding piece 9 all are the triangle body setting, and three wind-guiding piece 9 all are the cavity setting, and three wind-guiding piece 9 inner chamber all are poured with the coolant liquid, improve the air velocity of flow when making the air flow to strong wind district 15 through wind-guiding piece 9 for heat is derived, thereby improves radiating efficiency.

The opposite side of wind channel frame 1 articulates through multiunit hinge has air-out otter board 3, and the multiunit air-out hole 31 has been seted up to one side of air-out otter board 3, and multiunit air-out hole 31 is rectangular array setting, avoids the dust to get into the wind channel by air-out hole 31 through air-out otter board 3 to air-out otter board 3 is convenient for open, and its and bottom plate 2 joint has improved overall stability.

Two groups of first clamping blocks 32 are welded on one side of the air outlet screen plate 3, protruding blocks 33 are integrally formed on two adjacent sides of the air outlet screen plate 3 and the two groups of first clamping blocks 32, two groups of third clamping grooves 17 are formed on one side of the bottom plate 2, the two groups of first clamping blocks 32 are respectively clamped with the two groups of third clamping grooves 17, the first clamping blocks 32 are clamped with the third clamping grooves 17, the device is convenient to assemble and disassemble, and the first clamping blocks 32 are convenient to separate from the third clamping grooves 17 through the protruding blocks 33.

The air outlet port welding of the fan housing 4 has multiunit second fixture block 41, and multiunit second fixture block 41 is rectangular array setting, and multiunit first draw-in groove 13 has been seted up to one side of wind channel frame 1, and multiunit second fixture block 41 respectively with multiunit first draw-in groove 13 joint, expands the air current that the fan 19 produced through the fan housing 4 to improve radiating efficiency.

Two sets of ventilation holes 51 are formed in one side of the frame body 5, and the two sets of ventilation holes 51 are internally provided with the heat dissipation fans 19, two ends of the two sets of ventilation holes 51 are respectively communicated with the fan cover 4 and the dust cover 6, and the heat dissipation fans 19 are matched with the frame body 5 to enable noise of the heat dissipation fans 19 to be small in the heat dissipation process.

The inner cavity of the air duct frame 1 is provided with three groups of strong wind areas 15, the three groups of strong wind areas 15 are respectively and correspondingly arranged with the three groups of air guide blocks 9, the heights of the three groups of air guide blocks 9 are half of the height of the air duct frame 1, and the arrangement of the strong wind areas 15 and the air guide blocks 9 accelerates the flow velocity of air flow in the strong wind areas 15, so that heat is discharged, the strong wind areas 15 correspond to the IGBT power modules 7, and the heat dissipation efficiency of the IGBT power modules is accelerated.

The plurality of groups of first heat dissipation fins 10 are arranged between two adjacent groups of air guide blocks 9, the plurality of groups of second heat dissipation fins 11 are respectively arranged at an air inlet and an air outlet of the air duct frame 1, the plurality of groups of first heat dissipation fins 10 are arranged in parallel at equal intervals, the plurality of groups of second heat dissipation fins 11 are arranged in parallel at equal intervals, and waste heat generated by the IGBT power module 7 is led out through the plurality of groups of first heat dissipation fins 10 and the plurality of groups of second heat dissipation fins 11 and blown out by the heat dissipation fan 19.

The lower surface bonding of bottom plate 2 has two sets of bonding plates 12, and dustproof grid 20 is the active carbon grid, and fixed frame 21 is the rectangle frame, and bonding plate 12 is convenient for the fixed of bottom plate 2, adopts the active carbon grid to the adsorption effect of dust better, and the permeability of active carbon grid is good, and the windage coefficient is lower.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient heat abstractor of IGBT module, includes wind channel frame (1) and bottom plate (2), its characterized in that: the utility model discloses a fan-shaped air conditioner, including air duct frame (1), bottom plate (2), air duct frame (1), multiunit third fixture block (16) are welded on the upper surface of bottom plate (2), multiunit second draw-in groove (14) have been seted up to the upper surface of air duct frame (1), and multiunit third fixture block (16) respectively with multiunit second draw-in groove (14) joint, one side joint of air duct frame (1) has fan-shaped cover (4), and one side of fan-shaped cover (4) passes through multiunit fixed screw (18) fixedly connected with support body (5), one side of support body (5) relative fan-shaped cover (4) is through multiunit fixed screw (18) fixedly connected with dust cover (6), multiunit inlet opening (61) have been seted up to one side of dust cover (6) relative support body (5), and dust cover (6) inner chamber's bottom all bonds stopper (22), dust cover (6) inner chamber is installed dust grille (20) and fixed frame (21), the inner chamber symmetry of air duct frame (1) is provided with multiunit first fin (10) and second fin (11).

2. The IGBT module efficient heat dissipation device of claim 1 wherein: the upper surface of the air duct frame (1) is provided with a plurality of groups of IGBT power modules (7), the upper surface of the air duct frame (1) is welded with a plurality of groups of reinforcing ribs (8), and the reinforcing ribs (8) are respectively arranged in a staggered mode with the plurality of groups of IGBT power modules (7).

3. The IGBT module efficient heat dissipation device of claim 1 wherein: the upper surface mounting of bottom plate (2) has three wind-guiding piece (9), and three wind-guiding piece (9) all are the triangle setting, and three group wind-guiding piece (9) all are the cavity setting, and three wind-guiding piece (9) inner chamber all are poured with the coolant liquid.

4. The IGBT module efficient heat dissipation device of claim 1 wherein: the other side of the air duct frame (1) is hinged with an air outlet screen plate (3) through a plurality of groups of hinges, a plurality of groups of air outlet holes (31) are formed in one side of the air outlet screen plate (3), and the plurality of groups of air outlet holes (31) are arranged in a rectangular array.

5. The IGBT module efficient heat dissipation device of claim 4 wherein: two groups of first clamping blocks (32) are welded on one side of the air outlet screen plate (3), protruding blocks (33) are uniformly formed on two adjacent sides of the air outlet screen plate (3) and the two groups of first clamping blocks (32), two groups of third clamping grooves (17) are formed on one side of the bottom plate (2), and the two groups of first clamping blocks (32) are respectively clamped with the two groups of third clamping grooves (17).

6. The IGBT module efficient heat dissipation device of claim 1 wherein: the air outlet port welding of fan housing (4) has multiunit second fixture block (41), and multiunit second fixture block (41) are rectangular array setting, multiunit first draw-in groove (13) have been seted up to one side of wind channel frame (1), and multiunit second fixture block (41) respectively with multiunit first draw-in groove (13) joint.

7. The IGBT module efficient heat dissipation device of claim 1 wherein: two sets of ventilation holes (51) are formed in one side of the frame body (5), heat dissipation fans (19) are arranged in the two sets of ventilation holes (51), and two ends of the two sets of ventilation holes (51) are respectively communicated with the air expansion cover (4) and the dust cover (6).

8. The IGBT module efficient heat dissipation device of claim 1 wherein: the inner cavity of the air duct frame (1) is provided with three groups of strong wind areas (15), the three groups of strong wind areas (15) are respectively and correspondingly arranged with three groups of air guide blocks (9), and the heights of the three groups of air guide blocks (9) are half of the height of the air duct frame (1).

9. The IGBT module efficient heat dissipation device of claim 1 wherein: the plurality of groups of first radiating fins (10) are arranged between two adjacent groups of air guide blocks (9), the plurality of groups of second radiating fins (11) are respectively arranged at an air inlet and an air outlet of the air duct frame (1), the plurality of groups of first radiating fins (10) are arranged in parallel at equal intervals, and the plurality of groups of second radiating fins (11) are arranged in parallel at equal intervals.

10. The IGBT module efficient heat dissipation device of claim 1 wherein: two groups of bonding plates (12) are bonded on the lower surface of the bottom plate (2), the dustproof grating (20) is an active carbon grating, and the fixing frame (21) is a rectangular frame.