Inductor

Abstract

The utility model discloses an inductor. The inductor comprises a water cooling plate, a buckling piece, a magnetic core column assembly, an inductance coil assembly and cooling filler. The buckling piece is arranged on the first surface of the water cooling plate, the buckling piece is provided with an installation cavity, and a partition piece is arranged in the installation cavity to divide part of the installation cavity into a first containing cavity and a second containing cavity. The side, facing the first surface, of the first containing cavity is provided with a first limiting opening, the side, facing the first surface, of the second containing cavity is provided with a second limiting opening, and the first limiting opening and the second limiting opening are buckled to the first surface so as to define a filler space with the first surface. The first containing cavity and the second containing cavity are sleeved with the magnetic core column assembly. The inductance coil assembly is located in the first containing cavity and the second containing cavity and arranged on the magnetic core column assembly in a sleeving mode. The cooling filler is at least filled in the filler space for transferring heat. According to the inductor, through the combination of the water cooling plate and the cooling filler, efficient heat dissipation of the electronic element is achieved, and the cooling filler occupies a small area.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of inductors, in particular to an inductor for assisting electronic element heat dissipation. BACKGROUND

[0002] Due to the current resistance and large working current of the inductor, a large amount of heat is accumulated after long-time work, which causes the temperature of the inductor to continuously rise. Therefore, the inductor needs to be cooled to prevent the use performance of the inductor from being affected. In the prior art, a heat sink is usually used to cool the electronic elements in the inductor. Since the heat sink is usually made of aluminum alloy, brass or bronze into a plate, a sheet and multiple sheets, the contact area of the heat sink with the electronic elements is still limited, which limits the heat dissipation efficiency. Therefore, a fan is usually used in combination, but such a design increases the occupied space of the heat dissipation device. CONTENT OF THE UTILITY MODEL

[0003] The application provides an inductor. The inductor is cooled by a combination of a water-cooled plate and cooling filler, and the cooling filler occupies a small area.

[0004] In an embodiment of the application, an inductor is provided, which comprises a water-cooled plate having a first surface; a fastening member arranged on the first surface; the fastening member has a mounting cavity, a spacer is arranged in the mounting cavity, the spacer extends along a first axis to separate part of the mounting cavity into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are arranged along a second axis, the first accommodating cavity has two first communication openings arranged oppositely along the first axis, the second accommodating cavity has two second communication openings arranged oppositely along the first axis, and the first communication openings and the second communication openings are arranged towards the mounting cavity; the side of the first accommodating cavity facing the first surface has a first limiting opening, the side of the second accommodating cavity facing the first surface has a second limiting opening, and the first limiting opening and the second limiting opening are fastened to the first surface to define a filler space with the first surface; the first axis and the second axis are perpendicular; a magnetic core column assembly has a ring structure, the magnetic core column assembly is sleeved on the first accommodating cavity and the second accommodating cavity, and extends into the mounting cavity through the first communication openings and the second communication openings; an inductor coil assembly is located in the first accommodating cavity and the second accommodating cavity and is sleeved on the magnetic core column assembly; and a cooling filler is filled in the filler space and contacts the inductor coil assembly and the first surface respectively to transfer heat.

[0005] In an embodiment, the side of the part of the mounting cavity other than the first accommodating cavity and the second accommodating cavity facing the first surface has a contact opening, and the contact opening is used for the magnetic core column to contact the water-cooled plate to cool the magnetic core column.

[0006] In an embodiment, the side walls of the first limiting opening and the second limiting opening are protruded towards the side of the first surface relative to the side walls of the contact opening to define a filler space with the first surface, and the cooling filler is filled in the filler space.

[0007] In an embodiment, the first surface has a first boss, a second boss, a third boss and a fourth boss, the first boss is arranged corresponding to the first limiting opening, the second boss is arranged corresponding to the second limiting opening, and the first boss and the second boss are arranged along a first axis; the third boss and the fourth boss are arranged corresponding to the contact opening, and the third boss and the fourth boss are arranged along a second axis.

[0008] In an embodiment, the inductor further comprises an insulation assembly arranged between the magnetic core column assembly and the inductor coil assembly.

[0009] In an embodiment, the magnetic core column assembly comprises a first magnetic core column, a second magnetic core column, a first magnetic yoke column and a second magnetic yoke column, the first magnetic core column is arranged in the first accommodating cavity, the second magnetic core column is arranged in the second accommodating cavity, the first magnetic yoke column and the second magnetic yoke column are arranged in the mounting cavity and are respectively arranged on the two sides of the first magnetic core column and the second magnetic core column.

[0010] In an embodiment, the inductor coil assembly comprises a first inductor coil and a second inductor coil, the first inductor coil is sleeved on the first magnetic core column, and the second inductor coil is sleeved on the second magnetic core column.

[0011] In an embodiment, the cooling filler is in a gel state.

[0012] The inductor provided by the application comprises a water-cooled plate, a fastening piece, a magnetic core column assembly, an inductor coil assembly and a cooling filler. The fastening piece is provided with a mounting cavity, and part of the mounting cavity is separated to form a first accommodating cavity and a second accommodating cavity. The first accommodating cavity is provided with a first limiting opening on the side facing the first surface, and the second accommodating cavity is provided with a second limiting opening on the side facing the second surface. The first limiting opening and the second limiting opening are fastened to the first surface and define a filler space with the first surface. The cooling filler is filled in the filler space and is in contact with the inductor coil assembly and the first surface respectively to transfer heat. Since the proportion of the cooling filler is small and the contact area between the cooling filler and the inductor coil assembly and the first surface is large, the space occupied by the heat dissipation device is reduced, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a structural schematic diagram of an inductor according to the application;

[0014] Figure 2 FIG. 3 is a structural schematic diagram of a fastening piece according to the application;

[0015] Figure 3 FIG. 4 is an exploded structural schematic diagram of an inductor according to the application;

[0016] Figure 4 A sectional structure schematic diagram of an inductor of the present application.

[0017] The figure mark: inductor-100, water-cooling plate-110, first surface-111, first boss-1111, second boss-1112, third boss-1113, fourth boss-1114, buckling piece-120, installation cavity-121, spacer-122, first containing cavity-123, first communication opening-1231, first limiting opening-1232, second containing cavity-124, second limiting opening-1241, second communication opening-1242, contact opening-125, magnetic core column assembly-130, first magnetic core column-131, second magnetic core column-132, first magnetic yoke column-133, second magnetic yoke column-134, inductance coil assembly-140, first inductance coil-141, second inductance coil-142, filler space-150; insulating assembly-160, first insulating piece-161, second insulating piece-162, first axial-Y, second axial-X. DETAILED DESCRIPTION

[0018] The present application will be further described in details by specific embodiments in conjunction with the accompanying drawings. In different embodiments, similar elements are denoted by similar reference signs. In the following embodiments, many details are described in order to make the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and it is not necessary for those skilled in the art to describe these related operations in detail according to the description in the specification and the general technical knowledge in the art.

[0019] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate way to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that those skilled in the art can easily see. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0020] In this paper, the serial number of the component itself, such as "first", "second", etc., is only used to distinguish the described object, and has no technical meaning. Unless otherwise specified, "connection", "coupling" in the present application includes direct and indirect connection (coupling).

[0021] The application provides an inductor 100, please refer to Figures 1-4 The inductor 100 comprises a water-cooling plate 110, a buckling piece 120, a magnetic core column assembly 130, an inductor coil assembly 140 and cooling filler (not shown).

[0022] Please refer to Figures 1-3 The water-cooling plate 110 has a first surface 111. The buckling piece 120 is arranged on the first surface 111, and the buckling piece 120 has a mounting cavity 121, wherein a spacer 122 is arranged in the mounting cavity 121, the spacer 122 extends along a first axial direction Y, so as to separate part of the mounting cavity 121 into a first containing cavity 123 and a second containing cavity 124, the first containing cavity 123 and the second containing cavity 124 are arranged along a second axial direction X, and the first containing cavity 123 has two first communication openings 1231 arranged oppositely along the first axial direction Y, the second containing cavity 124 has two second communication openings 1242 arranged oppositely along the first axial direction Y, and the first communication openings 1231 and the second communication openings 1242 are arranged towards the mounting cavity 121. The first containing cavity 123 has a first limiting opening 1232 on one side facing the first surface 111, and the second containing cavity 124 has a second limiting opening 1241 on one side facing the first surface 111, the first limiting opening 1232 and the second limiting opening 1241 are buckled on the first surface 111, so as to define a filler space 150 with the first surface 111, and the first axial direction Y is perpendicular to the second axial direction X. The magnetic core column assembly 130 has a ring structure, the magnetic core column assembly 130 is sleeved on the first containing cavity 123 and the second containing cavity 124, and extends into the mounting cavity 121 through the first communication openings 1231 and the second communication openings 1242. The inductor coil assembly 140 is located in the first containing cavity 123 and the second containing cavity 124, and is sleeved on the magnetic core column assembly 130. The cooling filler is filled in the filler space 150 at least, and is in contact with the inductor coil assembly 140 and the first surface 111 respectively, so as to transfer heat.

[0023] In the application, the mounting cavity 121 is arranged on the buckling piece 120, and the mounting cavity 121 is separated into the first containing cavity 123 and the second containing cavity 124, the first containing cavity 123 has the first limiting opening 1232 on one side facing the first surface 111, the second containing cavity 124 has the second limiting opening 1241 on one side facing the second surface, the first limiting opening 1232 and the second limiting opening 1241 are buckled on the first surface 111, so as to define the filler space 150 with the first surface 111, the cooling filler is filled in the filler space 150, and the cooling filler is in contact with the inductor coil assembly 140 and the first surface 111, so as to transfer heat. Since the cooling filler does not need to occupy a large space, and the contact area of the cooling filler with the inductor coil assembly 140 and the first surface 111 is large, the occupation space of the heat dissipation device can be reduced, and the heat dissipation efficiency can be improved.

[0024] Please refer to Figure 2 The mounting cavity 121 has a contact opening 125 on the side facing the first surface 111, which is used for the magnetic core column and the water-cooling plate 110 to contact, so as to cool the magnetic core column.

[0025] The setting of the contact opening 125 can realize that the water-cooling plate 110 directly cools the magnetic core column, thereby accelerating the cooling rate. In the present application, the contact opening 125 is provided with two, which are arranged on the two sides of the first accommodating cavity 123 and the second accommodating cavity 124 along the first axial direction Y.

[0026] Please refer to Figure 2 The side walls of the first limiting opening 1232 and the second limiting opening 1241 are protrusively arranged relative to the side walls of the contact opening 125 towards the side of the first surface 111, so as to define a filler space 150 with the first surface 111, and the cooling filler is filled in the filler space 150.

[0027] The side walls around the first limiting opening 1232 and the second limiting opening 1241 are protrusively arranged relative to the contact opening 125, which is to define the filler space 150 with the first surface 111 without hindering the contact between the contact opening 125 and the first surface 111, and the setting of the filler space 150 can prevent the cooling filler from leaking.

[0028] Please refer to Figure 3 The first surface 111 has a first boss 1111, a second boss 1112, a third boss 1113 and a fourth boss 1114, the first boss 1111 is arranged corresponding to the first limiting opening 1232, the second boss 1112 is arranged corresponding to the second limiting opening 1241, and the first boss 1111 and the second boss 1112 are arranged along the first axial direction Y; the third boss 1113 and the fourth boss 1114 are arranged corresponding to the contact opening 125, and the third boss 1113 and the fourth boss 1114 are arranged along the second axial direction X.

[0029] By arranging the first boss 1111 and the second boss 1112 on the first surface 111, the cooling filler can be compacted, the cooling filler is in a gel state, and after being compacted, it will extend around the inductor coil, thereby further increasing the contact area of the cooling filler with the inductor coil and the water-cooling plate 110, which is beneficial to further improve the heat dissipation efficiency. In the present embodiment, the cooling filler is specifically a heat-conducting silicone grease. In addition, since the cooling filler is in a gel state, the cooling filler also has the performances of dustproof, corrosion-proof and shockproof.

[0030] Please refer to Figure 2The inductor 100 further comprises an insulation assembly 160, which is arranged between the magnetic core column assembly 130 and the inductor coil assembly 140.

[0031] Please refer to Figure 3 The magnetic core column assembly 130 comprises a first magnetic core column 131, a second magnetic core column 132, a first magnetic yoke column 133 and a second magnetic yoke column 134. Figure 2 The first magnetic core column 131 is arranged in the first accommodating cavity 123, the second magnetic core column 132 is arranged in the second accommodating cavity 124, and the first magnetic yoke column 133 and the second magnetic yoke column 134 are arranged in the mounting cavity 121 and are located on the two sides of the first magnetic core column 131 and the second magnetic core column 132, respectively. One end of the first magnetic yoke column 133 is adhesively connected with the first magnetic core column 131, and the other end is adhesively connected with the second magnetic core column 132. Similarly, one end of the second magnetic yoke column 134 is adhesively connected with the first magnetic core column 131, and the other end is adhesively connected with the second magnetic core column 132. The first magnetic core column 131, the first magnetic yoke column 133, the second magnetic core column 132 and the second magnetic yoke column 134 form a closed magnetic circuit, which can guide the magnetic field, reduce the magnetic leakage, improve the magnetic induction capacity and reduce the loss.

[0032] Please refer to Figure 3 The inductor coil assembly 140 comprises a first inductor coil 141 and a second inductor coil 142, the first inductor coil 141 is sleeved on the first magnetic core column 131, and the second inductor coil 142 is sleeved on the second magnetic core column 132.

[0033] Please refer to Figure 2 Figure 3 The insulation assembly 160 comprises a first insulation piece 161 and a second insulation piece 162, the first insulation piece 161 is arranged between the first magnetic core column 131 and the first inductor coil 141, and the second insulation piece 162 is arranged between the second magnetic core column 132 and the second inductor coil 142. In the present application, the first insulation piece 161 and the second insulation piece 162 are both made of plastic.

[0034] In the embodiment of the present application, the buckling piece 120 is engagedly connected with the water-cooling plate 110.

[0035] The above application of specific examples to the present application is described, which is only used to help understand the present application, and does not limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. An inductor, characterized in that: include: A water-cooled plate having a first surface; a fastening member, disposed on the first surface; The fastening component has an installation cavity, and a spacer is provided in the installation cavity. The spacer extends along the first axial direction to separate part of the installation cavity into a first accommodating cavity and a second accommodating cavity. The first accommodating cavity and the second accommodating cavity are arranged along the second axial direction, and the first accommodating cavity has two first communicating openings arranged opposite to each other in the first axial direction, and the second accommodating cavity has two second communicating openings arranged opposite to each other in the first axial direction, and the first communicating opening and the second communicating opening are both arranged toward the installation cavity; the first accommodating cavity has a first limiting opening on a side facing the first surface, and the second accommodating cavity has a second limiting opening on a side facing the first surface, and the first limiting opening and the second limiting opening are fastened to the first surface to define a filler space with the first surface; the first axial direction and the second axial direction are perpendicular to each other; The magnetic core column assembly is an annular structure, the magnetic core column assembly is sleeved in the first accommodating cavity and the second accommodating cavity, and extends into the installation cavity through the first communicating opening and the second communicating opening; an inductor coil assembly, located in the first accommodating cavity and the second accommodating cavity, and sleeved on the magnetic core column assembly; and a cooling filler, which at least fills the filler space and contacts the inductive coil component and the first surface respectively, for transferring heat.

2. The inductor according to claim 1, wherein The portion of the installation cavity excluding the first accommodating cavity and the second accommodating cavity has a contact opening on the side facing the first surface, and the contact opening is used for the magnetic core column to contact the water cooling plate to cool the magnetic core column.

3. The inductor according to claim 2, wherein: The side walls of the first limiting opening and the second limiting opening are protruded relative to the side wall of the contact opening toward the first surface to define a filler space with the first surface, and the cooling filler is filled in the filler space.

4. The inductor according to claim 3, wherein The first surface has a first boss, a second boss, a third boss and a fourth boss, the first boss is arranged corresponding to the first limiting opening, the second boss is arranged corresponding to the second limiting opening, and the first boss and the second boss are arranged along the first axial direction; the third boss and the fourth boss are arranged corresponding to the contact opening, and the third boss and the fourth boss are arranged along the second axial direction.

5. The inductor according to claim 1, wherein It also includes an insulating component, which is arranged between the magnetic core column component and the inductor coil component.

6. The inductor according to claim 1, wherein The magnetic core column assembly includes a first magnetic core column, a second magnetic core column, a first magnetic yoke column and a second magnetic yoke column. The first magnetic core column is arranged in the first accommodating cavity, and the second magnetic core column is arranged in the second accommodating cavity. The first magnetic yoke column and the second magnetic yoke column are located in the installation cavity and are respectively located on both sides of the first magnetic core column and the second magnetic core column.

7. The inductor according to claim 6, wherein: The inductor coil assembly includes a first inductor coil and a second inductor coil. The first inductor coil is sleeved on the first magnetic core column, and the second inductor coil is sleeved on the second magnetic core column.

8. The inductor according to any one of claims 1 to 7, wherein: The cooling filler is in a gel state.

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