CN217935202U - Integrated wireless charging module - Google Patents
Integrated wireless charging module Download PDFInfo
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- CN217935202U CN217935202U CN202222286182.6U CN202222286182U CN217935202U CN 217935202 U CN217935202 U CN 217935202U CN 202222286182 U CN202222286182 U CN 202222286182U CN 217935202 U CN217935202 U CN 217935202U
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- magnetic core
- mounting plate
- charging module
- heat dissipation
- wireless charging
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Abstract
The utility model discloses an integrated wireless charging module, wherein, the integrated wireless charging module comprises a shell, a charging module, a heat dissipation structure and a circuit board, the charging module comprises a charging coil and a magnetic core, the charging coil is arranged in the shell, and the magnetic core covers one side of the charging coil; the heat dissipation structure is arranged on one side, away from the charging coil, of the magnetic core and comprises a mounting plate and a plurality of heat dissipation fins arranged on the mounting plate, the plurality of heat dissipation fins are arranged on one side, facing the magnetic core, of the mounting plate, and the heat dissipation fins are perpendicular to the surface, away from the charging coil, of the magnetic core; the circuit board is arranged on one side of the mounting plate, which is far away from the radiating fin. The utility model discloses technical scheme can reduce the influence of the eddy current effect that magnetic field caused to heat radiation structure.
Description
Technical Field
The utility model relates to a wireless field of charging, in particular to wireless module of charging of integration.
Background
In the field of wireless charging, especially when the power reaches hundreds of watts, the heating of the coil and the magnetic core needs to be improved to integrate the coil and the power module, so that the influence of a magnetic field on a PCB (printed circuit board) and a circuit is avoided. Conventionally, an aluminum plate is disposed on the back of the coil magnetic core to shield the influence of the magnetic field on the PCB, and the heat of the coil and the magnetic core is also dissipated through the aluminum plate. However, the aluminum plate arranged in this way leads to a considerable increase in coil losses, and the aluminum plate itself is also heated by the eddy currents of the magnetic field. Although the impact on the PCB circuitry is reduced, the system efficiency drops a lot and the overall heat generation increases.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wireless module of charging of integration aims at reducing the magnetic field and to heat radiation structure's eddy current effect.
In order to achieve the above object, the utility model provides an integration wireless charging module, include:
a housing;
the charging module comprises a charging coil and a magnetic core, the charging coil is arranged in the shell, and the magnetic core covers one side of the charging coil;
the heat dissipation structure is arranged on one side, away from the charging coil, of the magnetic core and comprises a mounting plate and a plurality of heat dissipation fins arranged on the mounting plate, the plurality of heat dissipation fins are arranged on one side, facing the magnetic core, of the mounting plate, and the heat dissipation fins are perpendicular to the surface, away from the charging coil, of the magnetic core; and
the circuit board is arranged on one side, deviating from the radiating fin, of the mounting plate.
Optionally, the magnetic core is spaced from the mounting plate by a distance greater than 20mm.
Optionally, the housing has an opening, and one end of the heat sink attached to the mounting plate is located outside the opening, and the mounting plate is spaced apart from the opening.
Optionally, a plurality of the heat dissipation fins are arranged at intervals with the magnetic core.
Optionally, a portion of the heat sink close to the magnetic core is connected to the magnetic core by a thermally conductive fixing adhesive.
Optionally, a plurality of parallel through holes are formed in a portion, close to the magnetic core, of the radiating fin, and the heat-conducting fixing glue is coated on the portion, provided with the through holes, of the radiating fin.
Optionally, the through holes on any two adjacent cooling fins are arranged in a one-to-one correspondence manner.
Optionally, a heat-conducting silica gel is arranged between the circuit board and the mounting plate.
Optionally, the heat dissipation structure is made of aluminum or an aluminum alloy.
Optionally, an annular slot is formed in the housing, the charging coil is installed in the annular slot, and the magnetic core covers the annular slot.
The utility model discloses technical scheme is equipped with heat radiation structure through the one side that deviates from the charging coil at the magnetic core to make heat radiation structure's fin perpendicular to magnetic core deviate from the surface of charging coil, when charging, can be so that the fin is parallel with magnetism sense line, therefore the fin feels the relative cutting volume of line little with magnetism, thereby makes the eddy current loss that the fin produced low. And separate through the fin between heat radiation structure's mounting panel and the magnetic core for the magnetic core is kept away from to the mounting panel, and the magnetic field intensity of mounting panel department is relatively weak promptly, has so reduced the eddy current effect that the mounting panel produced. The eddy current effect of the magnetic field on the heat dissipation structure is reduced, and thus the heat generation of the heat dissipation structure is also reduced. Simultaneously, the produced heat transfer of charging coil and magnetic core distributes away on the fin, and the heat transfer that the circuit board produced distributes away on mounting panel and the fin, so not only reduced the eddy current loss, also guaranteed the radiating demand of system to promote system efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the integrated wireless charging module of the present invention;
fig. 2 is a schematic structural diagram of the hidden circuit board and the hidden charging coil in fig. 1;
fig. 3 is a schematic structural view of the heat dissipation structure at another angle in fig. 1.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 11 | |
13 | |
| 111 | |
131 | |
| 112 | Opening of the |
132 | |
| 12 | |
133 | Through- |
| 121 | |
14 | |
| 122 | Magnetic core |
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an integration wireless charging module.
In the embodiment of the present invention, as shown in fig. 1 to fig. 3, the integrated wireless charging module 12 includes a housing 11, a charging module 12, a heat dissipation structure 13 and a circuit board 14, the charging module 12 includes a charging coil 121 and a magnetic core 122, the charging coil 121 is installed in the housing 11, and the magnetic core 122 covers one side of the charging coil 121; the heat dissipation structure 13 is arranged on one side of the magnetic core 122 away from the charging coil 121, the heat dissipation structure 13 includes a mounting plate 131 and a plurality of heat dissipation fins 132 arranged on the mounting plate 131, the plurality of heat dissipation fins 132 are arranged on one side of the mounting plate 131 facing the magnetic core 122, and the heat dissipation fins are perpendicular to the surface of the magnetic core away from the charging coil 121; the circuit board 14 is disposed on a side of the mounting plate 131 facing away from the heat sink 132.
In this embodiment, the integrated wireless charging module 12 serves as a receiving coil module and is used for matching with the wireless charging transmitting coil module. Charging coil 121 and magnetic core 122 are installed in casing 11, and at wireless charging module 12 during operation, the produced heat transfer of charging coil 121 and magnetic core 122 distributes away on radiating fin 132, and the heat transfer that circuit board 14 produced distributes away on mounting panel 131 to the heat dissipation requirement of assurance system.
The utility model discloses technical scheme is equipped with heat radiation structure 13 through the one side that deviates from charging coil 121 at magnetic core 122 to make heat radiation structure 13's fin 132 perpendicular to magnetic core 122 deviate from the surface of charging coil 121, when charging like this, can make fin 132 and magnetism feel the line parallel, consequently fin 132 feels the relative cutting volume of line with magnetism little, thereby makes the eddy current loss that fin 132 produced low. And the mounting plate 131 of the heat dissipation structure 13 is separated from the magnetic core 122 by the heat sink 132, so that the mounting plate 131 is far away from the magnetic core 122, i.e. the magnetic field strength at the mounting plate 131 is weaker, thus reducing the eddy current effect generated by the mounting plate 131. I.e. the eddy current effect of the magnetic field on the heat dissipating structure 13 is reduced, so that the heat generation of the heat dissipating structure 13 itself is also reduced. Meanwhile, the heat generated by the charging coil 121 and the magnetic core 122 is transmitted to the heat sink 132 to be dissipated, and the heat generated by the circuit board 14 is transmitted to the mounting plate 131 and the heat sink 132 to be dissipated, so that the eddy current loss is reduced, and the heat dissipation requirement of the system is also ensured, thereby improving the system efficiency.
In some embodiments, the separation distance between magnetic core 122 and mounting plate 131 is no less than 20mm. Specifically, the distance between the magnetic core 122 and the mounting plate 131 is large, so that the mounting plate 131 is far away from the magnetic core 122, that is, the magnetic field strength at the mounting plate 131 is weak, and the eddy current effect generated by the mounting plate 131 is reduced, so that the heat generation amount of the mounting plate 131 is reduced, the heat generation amount of the heat dissipation structure 13 is reduced, and the heat generation amount of the system is also reduced. The distance between the magnetic core 122 and the mounting plate 131 is 20mm, 22mm, 23mm, or the like, and in other embodiments, the distance between the magnetic core 122 and the mounting plate 131 may also be less than 20mm.
In some embodiments, the housing 11 has an opening 112, and the end of the heat sink 132 attached to the mounting plate 131 is located outside the opening 112, the mounting plate 131 being spaced from the opening 112. Specifically, there is a space between the housing 11 and the mounting plate 131, and the heat sink 132 is partially exposed to the air, so that the heat sink 132 has a higher heat dissipation efficiency, and can better dissipate the heat generated by the charging coil 121 and the magnetic core 122. In other embodiments, the mounting plate 131 may also cover the air inlet, communicate with the inner cavity of the housing 11, and dissipate heat of the charging coil 121 and the magnetic core 122 through the through holes disposed on the peripheral side wall of the housing 11.
In some embodiments, the heat sinks are each spaced from the magnetic core. Specifically, the distance between the magnetic core 122 and the mounting plate 131 is larger, so that the magnetic field strength at the mounting plate 131 is weaker, the eddy current loss generated by the mounting plate is smaller, the heat generation amount of the mounting plate 131 is smaller, the heat generation amount of the system is reduced, and the efficiency of the system is improved.
In some embodiments, the portion of heat sink 132 adjacent to magnetic core 122 is coupled to magnetic core 122 by a thermally conductive glue. Specifically, a heat conductive fixing paste is poured into the housing 11, and the magnetic core 122 is connected to a portion of the heat dissipation plate 132 close to the magnetic core 122, so that the heat dissipation mechanism is fixed, and thus heat generated by the charging coil 121 and the magnetic core 122 is dissipated by transferring to the heat dissipation plate 132.
In some embodiments, the heat sink 132 is provided with a plurality of parallel through holes 133 at a portion thereof adjacent to the magnetic core 122, and the heat conductive adhesive covers the portion of the heat sink 132 provided with the through holes 133. Specifically, the heat conductive fixing paste on both sides of the heat sink 132 may be connected through the through hole 133, so that the heat sink 132 can be better fixed on the heat conductive fixing paste, and the stability of the heat dissipation structure 13 is also better. In other embodiments, the through hole 133 may not be provided.
In some embodiments, the through holes 133 of any two adjacent fins 132 are arranged in a one-to-one correspondence. Specifically, the through holes 133 of any two adjacent heat dissipation fins 132 are located on the same axis, so that when the through holes 133 on the heat dissipation fins 132 are machined, the through holes 133 on the same position on the plurality of heat dissipation fins 132 can be formed at one time only by drilling once, and thus, the machining convenience is improved. In other embodiments, the through holes 133 on any two adjacent heat dissipation fins 132 may also be arranged crosswise.
In some embodiments, a thermally conductive silicone gel is disposed between the circuit board 14 and the mounting plate 131. Specifically, the circuit board 14 is connected to the mounting plate 131 through liquid-like heat-conducting silicone, which is not only simple and convenient, but also the heat generated by the circuit board 14 can be dissipated to the mounting plate 131 through the heat-conducting silicone. In other embodiments, the thermally conductive silicone may also be a sheet structure disposed between the circuit board 14 and the mounting plate 131, and the circuit board 14 is fixed on the mounting plate 131 by screws.
In some embodiments, the heat dissipation structure 13 is made of aluminum or aluminum alloy. Specifically, the aluminum or aluminum alloy has good heat dissipation performance and is corrosion-resistant, and the heat dissipation structure 13 made of the material has a good heat dissipation effect, is durable, and can block the influence of a magnetic field on the circuit board 14. In other embodiments, the material of the heat dissipation structure 13 may also be other metals or alloys, such as copper.
In some embodiments, an annular wire slot 111 is formed in the housing 11, the charging coil 121 is installed in the annular wire slot 111, and the magnetic core 122 covers the annular wire slot 111. Specifically, annular wire casing 111 is that the machine-shaping of casing 11 comes out, and annular wire casing 111 simple structure, and when placing charging coil 121 in annular wire casing 111, annular wire casing 111 can be fixed spacing with charging coil 121, prevents that charging coil 121 from removing. The shell is simple in structure, easy to process and convenient to use.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An integrated wireless charging module, comprising:
a housing;
the charging module comprises a charging coil and a magnetic core, the charging coil is arranged in the shell, and the magnetic core covers one side of the charging coil;
the heat dissipation structure is arranged on one side, away from the charging coil, of the magnetic core and comprises a mounting plate and a plurality of heat dissipation fins arranged on the mounting plate, the plurality of heat dissipation fins are arranged on one side, facing the magnetic core, of the mounting plate, and the heat dissipation fins are perpendicular to the surface, away from the charging coil, of the magnetic core; and
the circuit board is arranged on one side, deviating from the radiating fin, of the mounting plate.
2. The integrated wireless charging module of claim 1, wherein a separation distance between the magnetic core and the mounting plate is not less than 20mm.
3. The integrated wireless charging module of claim 1, wherein the housing has an opening, wherein an end of the heat sink attached to the mounting plate is positioned outside the opening, and wherein the mounting plate is spaced apart from the opening.
4. The integrated wireless charging module of claim 1, wherein a plurality of the heat sinks are each spaced apart from the magnetic core.
5. The integrated wireless charging module of claim 1, wherein the portion of the heat sink adjacent to the magnetic core is attached to the magnetic core by a thermally conductive adhesive.
6. The integrated wireless charging module of claim 5, wherein a plurality of parallel through holes are formed in a portion of the heat sink close to the magnetic core, and the heat-conducting fixing adhesive covers the portion of the heat sink where the through holes are formed.
7. The integrated wireless charging module of claim 6, wherein the through holes of any two adjacent heat sinks are arranged in a one-to-one correspondence.
8. The integrated wireless charging module of claim 1, wherein a thermally conductive silicone is disposed between the circuit board and the mounting plate.
9. The integrated wireless charging module of claim 1, wherein the heat dissipation structure is made of aluminum or aluminum alloy.
10. The integrated wireless charging module of claim 1, wherein an annular slot is formed in the housing, the charging coil is mounted in the annular slot, and the magnetic core covers the annular slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286182.6U CN217935202U (en) | 2022-08-29 | 2022-08-29 | Integrated wireless charging module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286182.6U CN217935202U (en) | 2022-08-29 | 2022-08-29 | Integrated wireless charging module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217935202U true CN217935202U (en) | 2022-11-29 |
Family
ID=84172591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222286182.6U Active CN217935202U (en) | 2022-08-29 | 2022-08-29 | Integrated wireless charging module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217935202U (en) |
-
2022
- 2022-08-29 CN CN202222286182.6U patent/CN217935202U/en active Active
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