CN219019363U

CN219019363U - Heat radiation structure of metal packaging power device

Info

Publication number: CN219019363U
Application number: CN202222992075.5U
Authority: CN
Inventors: 詹骐泽; 林河北; 胡慧雄
Original assignee: Shenzhen Jinyu Semiconductor Co ltd
Current assignee: Shenzhen Jinyu Semiconductor Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-05-12
Anticipated expiration: 2032-11-10

Abstract

The utility model belongs to the field of heat dissipation of power devices, and particularly relates to a heat dissipation structure of a metal packaging power device, which comprises a heat absorption mechanism, wherein an insulating plate is fixedly connected to the middle part of the upper end of the heat absorption mechanism, three power device bodies are tightly adhered to the upper end of the insulating plate at equal intervals, positioning columns are connected to the front parts of the upper ends of the three power device bodies in a penetrating way, the positioning columns penetrate through the power device bodies and are connected with the heat absorption mechanism in a penetrating way, positioning devices are fixedly connected to the left part and the right part of the upper end of the heat absorption mechanism in a penetrating way, the upper part of the positioning devices penetrates through the insulating plate and extends to the upper part of the insulating plate, connecting plates are fixedly connected to the right part and the lower part of the right end of the heat absorption mechanism in a working way, and the heat dissipation mechanism is connected between the two positioning devices in a penetrating way. According to the metal packaging power device heat dissipation structure, the heat absorption mechanism and the heat dissipation mechanism are arranged, so that the heat dissipation effect of the power device body is improved.

Description

Heat radiation structure of metal packaging power device

Technical Field

The utility model relates to the technical field of power device heat dissipation, in particular to a metal packaging power device heat dissipation structure.

Background

Power semiconductor devices, also referred to as power electronics in the past, are semiconductor devices that perform power processing, and have the capability of handling high voltages and large currents, and typical power processing includes frequency conversion, voltage transformation, current transformation, power management, etc., and at least the following drawbacks exist in the use process of the existing power devices: 1. the existing power device has poor adhesion effect with the heat dissipation seat, so that the heat dissipation effect of the power device is poor; 2. the existing heat dissipation base has low heat dissipation efficiency, so we propose a new heat dissipation structure of metal-packaged power devices.

Disclosure of Invention

The utility model mainly aims to provide a metal packaging power device heat dissipation structure which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a metal packaging power device heat radiation structure, includes heat absorption mechanism, heat absorption mechanism upper end middle part fixedly connected with insulation board, the equal distance in insulation board upper end is closely pasted with three power device body, and three power device body upper end front portion all alternates and be connected with the reference column, the reference column all runs through the power device body and is in the same place with heat absorption mechanism alternates, heat absorption mechanism upper end left part and upper end right part fixedly connected with positioner jointly, positioner upper portion runs through the insulation board and extends to its top, heat absorption mechanism right-hand member is on duty and equal fixedly connected with connecting plate of right-hand member lower part, and alternates jointly between two positioner and be connected with heat dissipation mechanism, it is connected with four locating levers to alternate jointly between heat dissipation mechanism and the two connecting plates.

Preferably, the heat dissipation mechanism comprises a connecting pipe, the left end of the connecting pipe is fixedly connected with a first fixing plate, the outer surface of the right part of the connecting pipe is fixedly connected with a second fixing plate in a penetrating manner, the right part of the connecting pipe is fixedly connected with a heat dissipation fan in a penetrating manner, and the first fixing plate and the connecting plate are clung together.

Preferably, the positioning device comprises a pressing frame, the left part of the upper end of the pressing frame and the right part of the upper end of the pressing frame are fixedly connected with positioning frames, the middle parts of the lower ends of the two positioning frames are movably connected with screws in a penetrating mode, the screws penetrate through the middle parts of the upper ends of the positioning frames and are connected with fastening nuts in a threaded penetrating mode, and the screws are fixedly connected with the heat absorption mechanism.

Preferably, the pressing frame is tightly attached to the power device body in the middle, and the two positioning frames are tightly attached to the two power device bodies respectively.

Preferably, the heat absorbing mechanism comprises a heat radiating seat, a plurality of heat radiating holes are formed in the right end of the heat radiating seat at equal intervals, a groove is formed in the middle of the upper end of the heat radiating seat, and the groove and the insulating plate are inserted together.

Preferably, the heat dissipation seat is fixedly connected with the two connecting plates.

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

1. the two locating frames are respectively inserted with the two screw rods, so that the locating frames are tightly attached to the left power device body and the right power device body, the lower ends of the pressing frames are tightly attached to the middle power device body, the power device bodies are fixed through the fastening nuts, the rear parts of the lower ends of the power device bodies are tightly attached to the insulating plates, the front parts of the lower ends of the power device bodies are tightly attached to the insulating plates through the locating columns, the attaching effect of the power device bodies is improved, and the heat dissipation effect of the power device is improved;

2. when the power device body is used, the heat dissipation fan is started, so that wind power is blown to the heat absorption mechanism through the first fixing plate and the connecting pipe, and the heat dissipation effect of the heat dissipation seat is improved through the heat dissipation holes.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a heat dissipation structure of a metal-encapsulated power device according to the present utility model;

FIG. 2 is a schematic diagram of the overall structure of a heat dissipation mechanism of a heat dissipation structure of a metal-encapsulated power device according to the present utility model;

FIG. 3 is a schematic diagram of the whole structure of a positioning device of a heat dissipation structure of a metal-encapsulated power device according to the present utility model;

fig. 4 is a schematic diagram of the overall structure of a heat absorbing mechanism of a heat dissipating structure of a metal-encapsulated power device according to the present utility model.

In the figure: 1. a heat absorbing mechanism; 2. an insulating plate; 3. a power device body; 4. positioning columns; 5. a positioning device; 6. a connecting plate; 7. a heat dissipation mechanism; 8. a positioning rod; 71. a connecting pipe; 72. a first fixing plate; 73. a heat dissipation fan; 74. a second fixing plate; 51. a compacting frame; 52. a positioning frame; 53. a screw; 54. a fastening nut; 11. a heat dissipation seat; 12. a heat radiation hole; 13. a groove.

Detailed Description

The utility model 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 utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

Referring to fig. 1-4, the present utility model provides a technical solution:

the utility model provides a metal package power device heat radiation structure, including heat absorption mechanism 1, heat absorption mechanism 1 upper end middle part fixedly connected with insulation board 2, the equidistant close-fitting of insulation board 2 upper end has three power device body 3, and all alternate to be connected with reference column 4 in three power device body 3 upper end front portion, reference column 4 all runs through power device body 3 and alternate to be connected together with heat absorption mechanism 1, heat absorption mechanism 1 upper end left part and upper end right part are fixedly connected with positioner 5 jointly, positioner 5 upper portion runs through insulation board 2 and extends to its top, heat absorption mechanism 1 right-hand member is on duty and the equal fixedly connected with connecting plate 6 of right-hand member lower part, and alternate to be connected with cooling mechanism 7 jointly between two positioner 5, alternate to be connected with four locating levers 8 jointly between cooling mechanism 7 and the two connecting plates 6.

In this embodiment, the heat dissipation mechanism 7 includes a connection pipe 71, a first fixing plate 72 is fixedly connected to the left end of the connection pipe 71, a second fixing plate 74 is fixedly connected to the outer surface of the right part of the connection pipe 71 in a penetrating manner, a heat dissipation fan 73 is fixedly connected to the right part of the connection pipe 71 in a penetrating manner, and the first fixing plate 72 is tightly attached to the connection plate 6; by providing the heat radiation mechanism 7, heat radiation can be performed to the heat absorbing mechanism 1.

In this embodiment, the positioning device 5 includes a pressing frame 51, the left part of the upper end and the right part of the upper end of the pressing frame 51 are both fixedly connected with positioning frames 52, the middle parts of the lower ends of the two positioning frames 52 are both movably connected with screws 53 in a penetrating way, the screws 53 penetrate through the middle part of the upper end of the positioning frames 52 and are connected with fastening nuts 54 in a threaded penetrating way, and the screws 53 are both fixedly connected with the heat absorbing mechanism 1; the pressing frame 51 is tightly attached to the power device body 3 in the middle, and the two positioning frames 52 are tightly attached to the two power device bodies 3 respectively; by arranging the positioning device 5, the three power device bodies 3 can be fixed at the same time, by arranging the screw 53, the positioning frame 52 can be limited, and by arranging the fastening nut 54, the positioning frame 52 can be pressed.

In the embodiment, the heat absorbing mechanism 1 comprises a heat dissipation seat 11, a plurality of heat dissipation holes 12 are equidistantly arranged at the right end of the heat dissipation seat 11, a groove 13 is formed in the middle of the upper end of the heat dissipation seat 11, and the groove 13 is penetrated with the insulating plate 2; the heat dissipation seat 11 is fixedly connected with the two connecting plates 6; through setting up heat absorption mechanism 1 to can absorb the heat on the power device body 3, through setting up recess 13, thereby can carry out spacingly to the position that power device body 3 installed, through setting up louvre 12, improved the radiating effect of heat dissipation seat 11.

It should be noted that, in the use process, three power device bodies 3 are inserted with grooves 13, two positioning frames 52 are inserted with two screws 53 respectively, so that the left part of the lower end of a left positioning frame 52 and the right part of the lower end of a right positioning frame 52 are respectively attached to the power device bodies 3 of the left part and the power device bodies 3 of the right part, the lower end of a compression frame 51 is attached to the power device bodies 3 of the middle part, fastening nuts 54 are inserted with screws 53 in a threaded manner, so that the screws 53 compress the positioning frames 52, so that the positioning frames 52 and the compression frame 51 are fixed, so that the power device bodies 3 are tightly attached to the rear part of the lower end of an insulating plate 2, and then the positioning posts 4 penetrate through the power device bodies 3 and a heat absorbing mechanism 1, so that the front part of the lower end of the power device bodies 3 is attached to the insulating plate 2, and when the power device bodies 3 are used, a wind fan 73 is started, so that the heat dissipation effect of the power device bodies 3 is improved through a first fixing plate 72 and a heat absorbing mechanism 11 through a heat dissipation seat 12.

The foregoing has outlined and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a metal packaging power device heat radiation structure, includes heat absorption mechanism (1), its characterized in that: the heat absorption mechanism is characterized in that an insulating plate (2) is fixedly connected to the middle of the upper end of the heat absorption mechanism (1), three power device bodies (3) are tightly attached to the upper end of the insulating plate (2) at equal intervals, positioning columns (4) are connected to the front portions of the upper ends of the three power device bodies (3) in a penetrating mode, the positioning columns (4) penetrate through the power device bodies (3) and are connected with the heat absorption mechanism (1) in a penetrating mode, positioning devices (5) are fixedly connected to the left portion and the right portion of the upper end of the heat absorption mechanism (1) in a penetrating mode, the upper portions of the positioning devices (5) penetrate through the insulating plate (2) and extend to the upper portions of the insulating plate, connecting plates (6) are fixedly connected to the upper portion and the lower portion of the right end of the heat absorption mechanism (1), and two positioning devices (5) are connected with a heat dissipation mechanism (7) in a penetrating mode, and four positioning rods (8) are connected between the heat dissipation mechanism (7) and the two connecting plates (6) in a penetrating mode.

2. The heat dissipation structure of a metal-encapsulated power device of claim 1, wherein: the heat dissipation mechanism (7) comprises a connecting pipe (71), a first fixing plate (72) is fixedly connected to the left end of the connecting pipe (71), a second fixing plate (74) is fixedly connected to the outer surface of the right part of the connecting pipe (71) in a penetrating mode, a heat dissipation fan (73) is fixedly connected to the inner right part of the connecting pipe (71) in a penetrating mode, and the first fixing plate (72) and the connecting plate (6) are tightly attached to each other.

3. The heat dissipation structure of a metal-encapsulated power device of claim 1, wherein: the positioning device (5) comprises a pressing frame (51), wherein the left part of the upper end of the pressing frame (51) and the right part of the upper end of the pressing frame are fixedly connected with positioning frames (52), the middle parts of the lower ends of the two positioning frames (52) are movably connected with screw rods (53) in a penetrating mode, the screw rods (53) penetrate through the middle parts of the upper ends of the positioning frames (52) and are connected with fastening nuts (54) in a penetrating mode in threads, and the screw rods (53) are fixedly connected with the heat absorption mechanism (1).

4. A metal-encapsulated power device heat dissipation structure as defined in claim 3, wherein: the pressing frame (51) is tightly attached to the power device body (3) in the middle, and the two positioning frames (52) are tightly attached to the two power device bodies (3) respectively.

5. The heat dissipation structure of a metal-encapsulated power device of claim 1, wherein: the heat absorption mechanism (1) comprises a heat dissipation seat (11), a plurality of heat dissipation holes (12) are formed in the right end of the heat dissipation seat (11) in an equidistant mode, a groove (13) is formed in the middle of the upper end of the heat dissipation seat (11), and the groove (13) is penetrated with the insulating plate (2).

6. The heat dissipation structure of a metal-encapsulated power device of claim 5, wherein: the heat dissipation seat (11) is fixedly connected with the two connecting plates (6).