CN220651760U

CN220651760U - Inductance and power module

Info

Publication number: CN220651760U
Application number: CN202322375114.1U
Authority: CN
Inventors: 阳东礼; 龙双; 刘助威; 姜宁飞; 杨冠男; 侯文浩
Original assignee: ZHUZHOU GOFRONT EQUIPMENT CO LTD
Current assignee: ZHUZHOU GOFRONT EQUIPMENT CO LTD
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-03-22
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses an inductor and a power module, wherein the inductor comprises a shell, a magnetic core and a coil, the shell is in a U-shaped groove shape, a bottom plate is arranged at the bottom of one side of the shell, the bottom of the other side of the shell is in an opening shape, the center of the bottom plate is provided with the magnetic core which extends to be flush with the opening of the other side, and the coil is wound on the magnetic core; the power module comprises an inductor and a cooling plate, wherein the cooling plate is in a groove shape with a U-shaped section, a plurality of inductors are arranged in the U-shaped groove, and the inner wall of the U-shaped groove of the cooling plate is attached to the outer wall of a shell of the inductor.

Description

Inductance and power module

Technical Field

The utility model relates to the technical field of inductors, in particular to an inductor and a power module.

Background

The inductor is used as a basic electronic element and is applied to a direct current-direct current converter (DCDC) to generate large heat, a cooling structure is arranged on the inductor to cool the inductor in order to ensure the normal operation of the inductor, a cooling water channel is usually paved at the bottom of the inductor in the existing cooling structure, and the cooling liquid flowing in the cooling water channel takes away the heat emitted by components to realize the purpose of cooling, but the cooling structure can only form planar heat dissipation and has small heat dissipation area; and the current DCDC application field is that on transportation means such as locomotives, automobiles and the like, the functional modules cannot occupy an excessive volume, but the space between the current cooling structure and the inductor is not reasonably matched for use, and the space occupied in the box body is excessive.

The patent with the publication number of CN213846536U discloses a bidirectional DCDC converter for electric automobile motor, including the box, be used for sealing the box and assemble the upper cover plate in the box top, and assemble the lower cover plate in the box below sealed bottom of the case portion, be arranged in the box and be used for realizing the components and parts of bidirectional DCDC converter function, the one side of lower cover plate in towards the box is provided with the heat dissipation water course cavity that comprises the heat dissipation rib, the box side is equipped with the business turn over water pipe of two branches intercommunication heat dissipation water course cavities, the box inside of heat dissipation water course top installs two inductors in proper order from the front end to the rear end, and this patent is that the lower cover plate is equipped with the heat dissipation water course cavity towards the one side in the box, only can form the plane heat dissipation, and the heat dissipation area is little.

Disclosure of Invention

The utility model provides an inductor and a power module for solving the problems that the cooling structure in the prior art is small in heat dissipation area and the occupied space of the cooling structure and the inductor is overlarge.

The technical scheme adopted by the utility model is as follows:

the utility model provides an inductor, which comprises a shell, a magnetic core and a coil, wherein the shell is in a U-shaped groove shape, and the U-shaped part of a cooling plate can generate gaps to waste space because a standard inductor cannot be completely attached to the cooling plate; the bottom of one side of the shell is provided with a bottom plate, the bottom of the other side of the shell is in an opening shape, the center of the bottom plate is provided with a magnetic core which extends to be flush with the opening of the other side, and a coil is wound on the magnetic core.

A power module comprises the inductor.

Further, the power module further comprises a cooling plate, the cooling plate is in a groove shape with a U-shaped section, a plurality of inductors are arranged in the U-shaped groove, and the inner wall of the U-shaped groove of the cooling plate is attached to the outer wall of the shell of the inductor.

Further, the inductors are arranged in the U-shaped grooves of the cooling plate in a consistent and parallel mode, and U-shaped groove bottom plates of two adjacent inductors are connected with the opening.

Further, the number of the inductors is 8.

Further, high-low voltage side capacitors are uniformly arranged on the outer wall of the U-shaped groove.

Further, evenly distributed power unit SiC MOSFET modules are arranged between the high-voltage measuring capacitor and the low-voltage measuring capacitor.

Further, a small groove is formed in the gap between two adjacent power unit SiC MOSFET modules, the creepage distance of the two adjacent power unit SiC MOSFET modules is increased, functional insulation of the two adjacent power units is guaranteed, and the whole power module unit arrangement is more compact.

Further, the outer wall of the U-shaped groove is uniformly provided with a fuse used for short-circuit protection of the high-voltage side and the low-voltage side, and the fuse comprises a high-voltage side fuse and a low-voltage side fuse.

Further, the cooling plate is further provided with a power plate and a control plate, the power plate is arranged above the inductor, connection is facilitated, arrangement is compact, the control plate is arranged above the power plate, wiring is reduced, and the structure is compact.

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

the inductance housing is arranged to be of a U-shaped structure, is completely matched with the U-shaped groove cooling plate, fully utilizes the contact area of the water cooling plate, and obtains the maximum magnetic core area product. The two adjacent inductors are matched with each other, and the bottom plate of the latter inductor is connected with the opening of the former inductor, so that the area is saved as much as possible. The maximum conversion power is obtained in a narrow space, the utilization rate of the box body volume is improved, and the power and the cooling effect are improved.

The cooling plate not only can radiate the inductance, but also can radiate other devices, so that the radiating effect of the whole power module is maximized.

Drawings

FIG. 1 is a schematic diagram of an inductor structure;

FIG. 2 is a schematic diagram of a power module;

FIG. 3 is a schematic top view of an inductor and power module;

fig. 4 is an enlarged a partial view of an inductor and power module.

In the figure: 1-cooling plates; 2-inductance; 21-a housing; 22-coil; 23-magnetic core; 3-high and low side capacitance; 4-a power board and a control board; a 5-power cell SiC MOSFET module; 6-small grooves.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below. In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example 1

Referring to fig. 1, an inductor includes a housing 21, a magnetic core 22 and a coil 23, wherein the housing 21 is in a U-shaped groove shape, and because a standard inductor cannot be completely attached to a cooling plate, a gap can be formed in a U-shaped part of the cooling plate to cause space waste; the bottom of one side of the shell 21 is provided with a bottom plate, the bottom of the other side of the shell is in an opening shape, the center of the bottom plate is provided with a magnetic core 22 which extends to be flush with the opening of the other side, and a coil 23 is wound on the magnetic core 22.

Example 2

Referring to fig. 1 to 4, an embodiment of the present utility model provides: a power module comprises a cooling plate 1 and an inductor 2.

The cooling plate 1 is in a groove shape with a U-shaped section, a plurality of inductors 2 are arranged in the U-shaped groove, the heating value of the inductors 2 is relatively large, and the inductors are placed in the middle of the U-shaped plate, so that the contact area of the water cooling plate can be fully utilized. The cooling plate 1 is connected with a water inlet.

The inductor 2 comprises a shell 21, a magnetic core 23 and a coil 22, wherein the shell 21 is in a U-shaped groove shape, the outer wall of the shell 21 is attached to the inner wall of the U-shaped groove of the cooling plate 1, the inductors 2 are arranged side by side in the U-shaped groove of the cooling plate 1 in a consistent direction, the U-shaped groove bottom plates of two adjacent inductors 2 are connected with the opening, and the inductors 2 are provided with 8 inductors. Because the standard inductor cannot be completely attached to the cooling plate 1, gaps can be formed in the U-shaped part of the cooling plate 1 to cause space waste, the design appearance can be perfectly attached to the U-shaped part of the cooling plate 1, the heat dissipation area is increased, and the area product of the magnetic core 23 can be maximally increased; the bottom of one side of the shell 21 is provided with a bottom plate, the bottom of the other side of the shell is in an opening shape, the center of the bottom plate is provided with a magnetic core 23 which extends to be flush with the opening of the other side, and the magnetic core 23 is wound with a coil 22.

The inductor 2 is arranged to be of a nonstandard structure, is completely matched with the U-shaped groove cooling plate 1, fully utilizes the contact area of the water cooling plate, and obtains the largest area product of the magnetic core 23. The two adjacent inductors are matched with each other, and the bottom plate of the latter inductor is connected with the opening of the former inductor, so that the area is saved as much as possible. The maximum conversion power is obtained in a narrow space, the utilization rate of the box body volume is improved, and the power and the cooling effect are improved.

Example 3

Referring to fig. 1 to 4, an embodiment of the present utility model provides: comprising a cooling plate 1 and an inductor 2.

Further, evenly distributed power unit SiC MOSFET modules 5 are arranged between the high-voltage measuring capacitor and the low-voltage measuring capacitor. The small groove 6 is arranged at the gap between two adjacent power unit SiC MOSFET modules 5, so that the creepage distance between the two adjacent power unit SiC MOSFET modules 5 can be increased, and the whole power module unit arrangement is more compact.

Example 4

Further, the cooling plate 1 is further provided with a power plate and a control plate 4, the power plate is arranged above the inductor 2, connection is facilitated, arrangement is compact, the control plate is arranged above the power plate, wiring is reduced, and the structure is compact.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides an inductance, its characterized in that includes casing, magnetic core and coil, the casing is U type groove form, one side tank bottom of casing is equipped with the bottom plate, opposite side tank bottom is the opening form, and the bottom plate center is equipped with and extends to the magnetic core parallel and level with the opposite side opening, it has the coil to wind on the magnetic core.

2. A power module comprising the inductor of claim 1.

3. The power module according to claim 2, further comprising a cooling plate, wherein the cooling plate is in a groove shape with a U-shaped cross section, a plurality of inductors are arranged in the U-shaped groove, and the inner wall of the U-shaped groove of the cooling plate is attached to the outer wall of the shell of the inductor.

4. A power module according to claim 3, wherein the inductors are arranged side by side in a direction consistent in the U-shaped grooves of the cooling plate, and the U-shaped groove bottom plates of two adjacent inductors are connected with the opening.

5. A power module according to claim 3, wherein the number of said inductors is 8.

6. A power module according to claim 3, wherein the outer walls of the U-shaped slots are uniformly arranged with high and low side capacitors.

7. A power module according to claim 3, characterized in that evenly distributed power unit SiC MOSFET modules are arranged between the outer wall of the U-shaped groove and the high and low side capacitances.

8. A power module according to claim 7, characterized in that small trenches are provided in the gaps between the power cell SiC MOSFET modules.

9. A power module according to claim 3, wherein the outer wall of the U-shaped slot is uniformly provided with fuses for short-circuit protection of the high and low voltage sides, the fuses comprising a high voltage side fuse and a low voltage side fuse.

10. A power module according to claim 3, wherein the cooling plate is further provided with a power plate and a control plate, the power plate being arranged above the inductor, the control plate being arranged above the power plate.