CN220586482U

CN220586482U - Radiator, electromagnetic heating module and electronic equipment

Info

Publication number: CN220586482U
Application number: CN202321413505.1U
Authority: CN
Inventors: 范佳蓓; 李仕东; 张方杰; 展江华; 朱振东
Original assignee: Qingdao Dingxin Electronics Technology Co ltd
Current assignee: Qingdao Dingxin Electronics Technology Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2024-03-12
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a radiator, which is used for heat exchange with a power switch tube; the heat sink includes: the radiator comprises a radiator body, wherein the radiator body comprises a plurality of heat exchange fin plates which are arranged at intervals and are arranged in parallel; the radiator connecting part is arranged on one side of the radiator main body in the length direction and is integrally connected with the plurality of heat exchange fin plates; in the installation state, the radiator connecting part is positioned below the radiator main body, the lower surface of the radiator connecting part in the thickness direction forms a radiating surface, and the power switch tube is positioned below the radiating surface and is in contact with the radiating surface; the utility model also provides an electromagnetic heating module and electronic equipment, and the electromagnetic heating module has the advantages of reasonable structure, stable work and high heat dissipation efficiency.

Description

Radiator, electromagnetic heating module and electronic equipment

Technical Field

The present disclosure relates to electromagnetic heating, and particularly to a heat sink, an electromagnetic heating module with the heat sink, and an electronic device.

Background

The electromagnetic induction heating technology has the advantages of high heating efficiency, energy conservation, environmental protection and uniform heating, and the application range is wider and wider. For example, in an electromagnetic oven, that is, a magnetic field induction current heating principle is adopted, alternating current generates an alternating magnetic field when flowing through a coil panel, the bottom of an iron pot placed on the coil panel is penetrated by alternating magnetic force lines, countless small eddy currents are generated at the bottom of the pot due to the fact that the magnetic force lines are cut, the eddy currents act on iron atoms on the pot to enable the iron atoms to move at high speed irregularly, and a large amount of heat is generated by mutual collision between the atoms, so that the iron pot is used for heating food materials in the pot, and the purpose of cooking is achieved.

The core component of the electromagnetic heating module comprises a power switch tube IGBT, the IGBT can be overhigh in temperature after long-time work and exceeds a certain temperature, and then automatic alarm and power-off protection can be realized, so that the heating can not be continued. Therefore, a heat dissipation module is required to be arranged for the electromagnetic heating module in a matching way.

The most common heat dissipation module among the prior art is air-cooled heat dissipation module, needs to cooperate radiator and fan promptly, realizes the heat dissipation, and the radiator among the prior art sets up in one side of power switch tube usually, because power switch tube's area is less, can only design the radiator when considering the overall arrangement and have convex fixed slot, has the problem that the mould processing degree of difficulty is high relatively, heat radiating area is little and operation process is loaded down with trivial details.

Disclosure of Invention

Aiming at the problems that the radiator in the prior art is usually arranged on one side of a power switch, and the radiator only has a convex fixing groove when the layout is considered due to the small area of the power switch tube, the die processing difficulty is high, the radiating area is small and the operation procedure is complicated relatively, the first aspect of the utility model designs and provides the radiator.

In order to achieve the above-mentioned utility model/design purpose, the utility model adopts the following technical scheme to realize:

a heat sink for heat exchange with a power switching tube, comprising:

the radiator comprises a radiator body, wherein the radiator body comprises a plurality of heat exchange fin plates which are arranged at intervals and are arranged in parallel; and

a radiator connecting portion provided at one side in a length direction of the radiator body and configured to integrally connect the plurality of heat exchange fin plates; in the installation state, the radiator connecting part is positioned below the radiator main body, the lower surface of the radiator connecting part in the thickness direction forms a radiating surface, and the power switch tube is positioned below the radiating surface and is in contact with the radiating surface.

Further, the radiator connecting portion is provided with: the first installation position penetrates through the radiator connecting part in the thickness direction, and the first retaining component penetrates through the first installation position to fixedly connect the radiator and the power switch tube.

Further, the radiator and the power switch tube are fixedly arranged on the main board; the radiator connecting part is provided with: and a second mounting position penetrating through the radiator connecting portion in a thickness direction, and a second holding member penetrating from the second mounting position to fixedly connect the radiator and the main board.

Further, the radiator connecting portion is provided with: a third mounting position penetrating the radiator connecting portion in a thickness direction, a portion of a holding bracket penetrating from the third mounting position to fixedly connect the holding bracket and the radiator; the holding bracket is used for fixing at least one electric element on the main board.

Further, the first, second and third mounting positions are slits or holes penetrating through the radiator connecting portion in the thickness direction.

Further, the radiator connection part further has: the first fan connecting portion is configured on the upper surface of the radiator connecting portion in the thickness direction, and the first fan connecting portion is communicated with an air duct formed between the two heat exchange fin plates.

Further, the radiator connection part further has: the second fan connecting part is configured between the extending end parts of the two heat exchange fin plates; the extending end part extends from the free end of the heat exchange fin plate towards the direction away from the radiator connecting part; in the width direction, the first fan connecting portion and the second fan connecting portion are located on two sides of the radiator respectively.

Further, the heat exchange fin plate is flat plate-shaped, and the cross section of the heat exchange fin plate in the width direction is at least partially wavy.

The second aspect of the utility model is designed and provides an electromagnetic heating module, which comprises a power switch tube; further comprises: a heat sink for heat exchange with a power switching tube, the heat sink comprising: the radiator comprises a radiator body, wherein the radiator body comprises a plurality of heat exchange fin plates which are arranged at intervals and are arranged in parallel; a fan connecting part is constructed between at least two adjacent heat exchange fin plates; a radiator connecting portion provided at one side in a length direction of the radiator body and configured to integrally connect the plurality of heat exchange fin plates; in the installation state, the radiator connecting part is positioned below the radiator main body, the lower surface of the radiator connecting part in the thickness direction forms a radiating surface, and the power switch tube is positioned below the radiating surface and is in contact with the radiating surface; and the fan is arranged on one side of the length direction of the radiator, the edge of the fan is aligned with the radiator, and the fan is connected with the radiator through the fan connecting part.

A third aspect of the present application provides an electronic device comprising an electromagnetic heating module; the electromagnetic heating module comprises a power switch tube; further comprises: a heat sink for heat exchange with a power switching tube, the heat sink comprising: the radiator comprises a radiator body, wherein the radiator body comprises a plurality of heat exchange fin plates which are arranged at intervals and are arranged in parallel; a fan connecting part is constructed between at least two adjacent heat exchange fin plates; a radiator connecting portion provided at one side in a length direction of the radiator body and configured to integrally connect the plurality of heat exchange fin plates; in the installation state, the radiator connecting part is positioned below the radiator main body, the lower surface of the radiator connecting part in the thickness direction forms a radiating surface, and the power switch tube is positioned below the radiating surface and is in contact with the radiating surface; and the fan is arranged on one side of the length direction of the radiator, the edge of the fan is aligned with the radiator, and the fan is connected with the radiator through the fan connecting part.

Compared with the prior art, the utility model has the advantages and positive effects that: in the utility model, the radiator is positioned above the power switch tube in the installation state, the upper surface of the power switch tube is contacted with the radiating surface, and the radiating area is increased; the radiator has a simple structure, parts protruding out of the body are not required to be designed for connection with the fan, and the internal space of the electrical box is saved; because the radiator is located the top of power switch tube, make things convenient for automation equipment or operating personnel to pinpoint, can improve production efficiency.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a heat sink according to the present utility model;

FIG. 2 is a schematic diagram of an embodiment of a heat sink according to the present utility model;

FIG. 3 is a schematic diagram of an embodiment of a heat sink according to the present utility model;

FIG. 4 is a schematic view of an embodiment of a radiator according to the present utility model in use;

FIG. 5 is a schematic view of an embodiment of a radiator according to the present utility model in use;

FIG. 6 is a schematic diagram of an embodiment of a radiator according to the present utility model in use;

FIG. 7 is an exploded view of one embodiment of the proposed heat sink in use;

in the figure, 10, a radiator; 12. a radiator body; 14. a heat exchange fin plate group; 14-1, heat exchange fin plates; 14-2, heat exchange fin plates; 14-3, heat exchange fin plates; 14-4, heat exchange fin plates; 16. a radiator connecting part; 18. a heat radiating surface; 20. a first mounting location; 22. a second mounting location; 24. a third mounting location; 26. the upper surface of the radiator connecting part; 28. a first fan connection; 30. an air duct; 32. a blower; 34. a power switching tube; 36. a holding bracket; 38. an electrical component; 40. a main board; 50. and a sensor connecting hole.

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.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "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 utility model 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 thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. 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. In the description of the embodiments, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

To the radiator in prior art set up in power switch tube's one side generally, because power switch tube's area is less, can only design the radiator when considering the overall arrangement and have convex fixed slot, there is the problem that the mould processing degree of difficulty is high relatively, heat radiating area is little and operation is loaded down with trivial details, some embodiments of this application design and provide a radiator. As shown in fig. 1 to 7, the heat sink 10 is used for heat exchange with the power switch tube 34, reducing the working temperature of the power switch tube 34 (Insulated Gate Bipolar Transistor, IGBT), avoiding the IGBT exceeding the working temperature threshold and automatically alarming, and entering into power-off protection. In some embodiments of the present application, the power switch tube 34 also includes a control circuit packaged with the IGBT, i.e. an IGBT module or a smart power module including a protection circuit.

As shown in fig. 1 to 3, the radiator 10 provided in the present application is an air-cooled radiator 10. The heat sink 10 includes a heat sink body 12 and a heat sink connecting portion 16; the radiator main body 12 includes a heat exchange fin plate group 14, the heat exchange fin plate group 14 includes a plurality of heat exchange fin plates (shown as 14-1, 14-2, 14-3 and 14-4 in the figures) arranged in parallel at intervals, a radiator connecting portion 16 is disposed at one side of the radiator main body 12 in the length direction, and the radiator connecting portion 16 is configured to integrally connect the plurality of heat exchange fin plates. The radiator body 12 and the radiator connection portion 16 are made of metal, for example, metal aluminum or metal copper, and the radiator 10 may be coupled with the blower fan 32 to further reduce the temperature of the radiator 10 by using air flow, maintaining a stable heat radiation effect for a long time. In the mounted state, the radiator connecting portion 16 is located below the radiator main body 12, and the lower surface of the radiator connecting portion 16 in the thickness direction constitutes a heat radiating surface, and the power switching tube 34 is located below and in contact with the heat radiating surface.

According to the radiator 10 provided by the utility model, the radiator 10 is positioned above the power switch tube 34 in the installation state, the upper surface 26 of the power switch tube 34 is contacted with the radiating surface, and the radiating area is increased; the radiator 10 has a simple structure, does not need to design an extending part for connection, and saves the internal space of the electrical box; because the radiator 10 is located above the power switch tube 34, the automatic device or the operator can be conveniently and accurately positioned, and the production efficiency can be improved.

In the overall outline, the heat sink 10 has a rectangular parallelepiped-like structure, and as shown in fig. 1 and 3, the direction in which the heat exchange fin plates extend is defined as the thickness direction (i.e., the z-axis direction as shown), one direction orthogonal to the z-axis direction is defined as the length direction (i.e., the x-axis direction as shown), and the direction orthogonal to both the z-axis direction and the x-axis direction is defined as the y-axis direction. For ease of description, the cooling surface is defined to lie in an x-y plane defined by an x-axis direction and a y-axis direction. In the present embodiment, the heat radiation surface may be configured in a rectangular flat plate shape, that is, the length direction of the heat radiation surface is the x-axis direction, and the width direction of the heat radiation surface is the y-axis direction.

As shown in fig. 1 and 2, a first mounting location 20 is provided on the heat sink 10. The first mounting position 20 penetrates the radiator connection portion 16 in the thickness direction, and the first holding member penetrates from the first mounting position 20 to fixedly connect the radiator 10 and the power switching tube 34. The first mounting location 20 may be a hole or a cutout, and in some alternative embodiments of the present application, the first mounting location 20 is a hole and the first retaining member is a bolt, and the first retaining member passes through the first mounting location 20 to fixedly connect the heat sink 10 and the power switch tube 34. In some alternative embodiments of the present application, the first mounting location 20 includes a plurality of spaced apart side-by-side apertures to stabilize the mounting connection of the heat sink 10 and the power switch tube 34. The first mounting location 20 is also used to connect the heat sink 10 to other electrical components (e.g., an integrally designed rectifier circuit, such as a rectifier bridge, etc.).

In some embodiments of the present application, both the heat sink 10 and the power switch tube 34 are fixedly mounted on the motherboard 40. The main board 40 provided at the heat sink 10 and the power switching tube 34 is further installed in the electrical box as a whole. As shown in fig. 1 and 2, a second mounting location 22 is also provided on the heat sink 10. The second mounting position 22 penetrates the radiator connecting portion 16 in the thickness direction. The second holding member passes through the second mounting position 22 to fixedly connect the heat sink 10 and the main board 40. The second mounting location 22 may be a hole or a cutout, and in some alternative embodiments of the present application, the second mounting location 22 is a hole, the second retaining member is a bolt, and the second retaining member passes through the second mounting location 22 to fixedly connect the heat sink 10 and the main board 40. In some alternative embodiments of the present application, the second mounting location 22 includes a plurality of holes spaced and arranged in different orientations to keep the mounting connection of the heat sink 10 and the motherboard 40 stable.

In some embodiments of the present application, the power switch tube 34 is disposed on the motherboard 40 by a retaining bracket 36. As shown in fig. 1 and 2, a third mounting location 24 is also provided on the heat sink 10. The third mounting site 24 penetrates the radiator connecting portion 16 in the thickness direction, and a portion of the holding bracket 36 penetrates the third mounting site 24 to fixedly connect the holding bracket 36 and the radiator 10. The holding bracket 36 is used to fix at least one electrical component 38 to the main board 40, for example, while fixing the power switching tube 34, the rectifier circuit to the main board 40. The holding bracket 36 has a snap-in portion extending in a direction away from the main board 40, which passes through the third mounting position 24 to fixedly connect the holding bracket 36 and the heat sink 10. The third mounting location 24 may also be a hole or a cutout. In some alternative embodiments of the present application, the third mounting location 24 includes a plurality of holes or cutouts spaced and arranged in different orientations to keep the mounting connection of the heat sink 10 and the retaining bracket 36 stable.

The first, second and third mounting positions 20, 22 and 24 on the radiator connecting portion 16 can optimize the structural strength of the radiator 10 while setting the positioning and holding positions, and avoid the deformation of fins caused by external force during the mounting and fixing operation.

In some embodiments of the present application, the fan 32 is configured to be disposed at one end of the heat sink 10. From the whole appearance, fan 32 also designs to be the structure of similar cuboid, and fan 32 cross section in the width direction is the same with radiator 10 cross section in the width direction, under the installation status promptly, radiator 10 and fan 32 keep the state of parallel and level, and whole appearance is regular, further reduces processing cost, and fan 32 can cover whole wind channel 30 between the heat transfer fin board, increases heat radiating area, promotes radiating efficiency. To achieve connection with the fan 32, the radiator connection 16 also has a first fan 32 connection 28 and a second fan 32 connection; wherein the first fan 32 connection portion 28 is configured in the thickness direction at the upper surface 26 of the radiator connection portion 16, the first fan 32 connection portion 28 communicates with the air passage 30 formed between the two heat exchange fin plates. The first fan 32 connection 28 is configured in the form of a shaft bore.

On the other side, the radiator connection 16 also has a second fan 32 connection; the second fan 32 connection is configured between the extended ends of the two heat exchange fin plates. The extension end portion extends from the free end of the heat exchange fin plate in a direction away from the radiator connection portion 16. The second fan 32 connection also communicates with the air duct 30 formed between the two heat exchange fin plates. The second fan 32 connection is also configured in the form of a shaft aperture.

In the width direction, the first fan 32 connection portion 28 and the second fan 32 connection portion are located on two sides of the radiator 10, respectively, that is, the first fan 32 connection portion 28 and the second fan 32 connection portion are disposed diagonally, so as to ensure stable connection between the radiator 10 and the fan 32.

In some alternative embodiments of the present application, the heat exchange fins are flat plate-shaped, and the cross section of the heat exchange fins in the width direction is at least partially wavy, so as to provide more heat exchange area.

In some optional embodiments of the present application, the side wall of the radiator 10 is further provided with a sensor connection hole 50, and the sensor connection hole 50 is optionally connected with a temperature sensor to detect the surface temperature of the radiator 10, and the operating mode of the IGBT module or the fan 32 can be adjusted according to the surface temperature of the radiator 10, so that the whole electromagnetic heating module works more stably and has better performance.

A second aspect of the present application includes an electromagnetic heating module having a power switch tube 34 disposed therein; the power switch 34 may be an IGBT module or a smart power module. The electromagnetic heating module further comprises a radiator 10, wherein the radiator 10 is used for exchanging heat with the power switch tube 34; one side of the radiator 10 in the length direction is provided with a fan 32, the edge of the fan 32 is aligned with the radiator 10, the fan 32 is connected with the radiator 10 through a fan 32 connecting part, and the fan 32 is configured to guide airflow to flow through the radiator 10 to realize heat dissipation.

The heat sink 10 includes a heat sink body 12, the heat sink body 12 including a plurality of heat exchange fin plates arranged in parallel at intervals; in the width direction, a first fan 32 connecting portion 28 is configured between the heat exchange fin plates located on one side of the radiator main body 12, a second fan 32 connecting portion is configured between the heat exchange fin plates located on the other side of the radiator main body 12, and the first fan 32 connecting portion 28 and the second fan 32 connecting portion are distributed diagonally. The first fan 32 connection 28 and the second fan 32 connection are each configured in the form of shaft bores to accommodate mating mounting connection components disposed on one side of the fan 32.

The radiator 10 further includes a radiator connecting portion 16, and the radiator connecting portion 16 is disposed at one side of the radiator body 12 in the longitudinal direction and is configured to integrally connect a plurality of heat exchange fin plates. In the mounted state, the radiator connecting portion 16 is located below the radiator main body 12, and the lower surface of the radiator connecting portion 16 in the thickness direction constitutes a heat radiating surface, and the power switching tube 34 is located below and in contact with the heat radiating surface.

In the electromagnetic heating module provided by the utility model, as the radiator 10 has more stable radiating characteristic and the connecting structure of the radiator 10 and the fan 32 is more reasonable, the electromagnetic heating module has longer service life and more stable performance.

Other structures of the heat sink 10 are described in detail in the above embodiments and the drawings, and will not be described herein again, and the electromagnetic heating module provided with the heat sink 10 can achieve the same technical effects.

A third aspect of the utility model provides an electronic device comprising an electromagnetic heating module. The specific structure of the electromagnetic heating module is described in detail in the foregoing embodiments and the drawings in the specification, and will not be described herein again, and the electronic device provided with the electromagnetic heating module may achieve the same technical effects.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A heat sink for heat exchange with a power switching tube, comprising:

2. The heat sink of claim 1 wherein the heat sink is configured to be mounted to the heat sink,

the radiator connecting part is provided with:

the first installation position penetrates through the radiator connecting part in the thickness direction, and the first retaining component penetrates through the first installation position to fixedly connect the radiator and the power switch tube.

3. The heat sink of claim 2 wherein the heat sink is configured to be mounted to the heat sink,

the radiator and the power switch tube are fixedly arranged on the main board;

the radiator connecting part is provided with:

and a second mounting position penetrating through the radiator connecting portion in a thickness direction, and a second holding member penetrating from the second mounting position to fixedly connect the radiator and the main board.

4. The heat sink of claim 3 wherein the heat sink is configured to be mounted to the heat sink,

the radiator connecting part is provided with:

a third mounting position penetrating the radiator connecting portion in a thickness direction, a portion of a holding bracket penetrating from the third mounting position to fixedly connect the holding bracket and the radiator; the holding bracket is used for fixing at least one electric element on the main board.

5. The heat sink of claim 4 wherein the heat sink is configured to be mounted to the heat sink,

the first, second and third mounting positions are cuts or holes penetrating through the radiator connecting portion in the thickness direction.

6. The heat sink according to any one of claims 1 to 5, wherein,

the radiator connection part further has:

the first fan connecting portion is configured on the upper surface of the radiator connecting portion in the thickness direction, and the first fan connecting portion is communicated with an air duct formed between the two heat exchange fin plates.

7. The heat sink of claim 6 wherein the heat sink is configured to be mounted to the heat sink,

the radiator connection part further has:

the second fan connecting part is configured between the extending end parts of the two heat exchange fin plates; the extending end part extends from the free end of the heat exchange fin plate towards the direction away from the radiator connecting part;

in the width direction, the first fan connecting portion and the second fan connecting portion are located on two sides of the radiator respectively.

8. The heat sink of claim 7 wherein the heat sink is configured to be mounted to the heat sink,

the heat exchange fin plate is flat plate-shaped, and the cross section of the heat exchange fin plate in the width direction is at least partially wavy.

9. An electromagnetic heating module, includes power switch tube, its characterized in that still includes:

a heat sink for heat exchange with a power switching tube, the heat sink comprising:

the radiator comprises a radiator body, wherein the radiator body comprises a plurality of heat exchange fin plates which are arranged at intervals and are arranged in parallel; a fan connecting part is constructed between at least two adjacent heat exchange fin plates;

a radiator connecting portion provided at one side in a length direction of the radiator body and configured to integrally connect the plurality of heat exchange fin plates; in the installation state, the radiator connecting part is positioned below the radiator main body, the lower surface of the radiator connecting part in the thickness direction forms a radiating surface, and the power switch tube is positioned below the radiating surface and is in contact with the radiating surface;

and

the fan, the fan set up in one side of radiator length direction, the edge of fan with the radiator aligns, the fan passes through fan connecting portion with the radiator is connected.

10. An electronic device comprising the electromagnetic heating module of claim 9.