CN113923920A

CN113923920A - Filtering module and electronic equipment with same

Info

Publication number: CN113923920A
Application number: CN202010659301.0A
Authority: CN
Inventors: 吴斌; 龙保川; 梁树林; 王超
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2022-01-11
Anticipated expiration: 2040-07-09
Also published as: CN113923920B

Abstract

The invention discloses a filtering module and an electronic device with the same, wherein the filtering module comprises: the capacitor is electrically connected with the circuit board and arranged on one side of the circuit board in the thickness direction; the inductor is arranged on one side of the thickness direction of the circuit board, the inductor and the capacitor are overlapped in the thickness direction of the circuit board, and the inductor is electrically connected with the circuit board. According to the filtering module, the capacitor and the inductor are arranged on the same side in the thickness direction of the circuit board, and the inductor and the capacitor are overlapped in the thickness direction of the circuit board, so that the occupied space of the filtering module is smaller, and the miniaturization design of the filtering module is facilitated.

Description

Filtering module and electronic equipment with same

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a filtering module and electronic equipment with the same.

Background

In the related art, the capacitor and the inductor on the filter module are both installed on the circuit board, and the capacitor and the inductor are transversely arranged on the circuit board side by side, so that the capacitor and the inductor can occupy a larger space when being installed. In addition, the heat dissipation of inductance mainly relies on bonding heat conduction gasket between the bottom of the coil of inductance and the box to carry out the contact heat dissipation, because heat dissipation area of contact is less, the magnetic core of inductance does not have good heat dissipation route for the heat of magnetic core can't effectively spill, thereby the radiating effect is relatively poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a filter module, which reduces the lateral occupied space of the capacitor and the inductor, reduces the size of the filter module, and facilitates the miniaturization design of the filter module.

Another object of the present invention is to provide an electronic device having the above filter module.

A filtering module according to an embodiment of the first aspect of the present invention includes: the capacitor is electrically connected with the circuit board and arranged on one side of the circuit board in the thickness direction; the inductor is arranged on one side of the thickness direction of the circuit board, the inductor and the capacitor are overlapped in the thickness direction of the circuit board, and the inductor is electrically connected with the circuit board.

According to the filtering module provided by the embodiment of the invention, the capacitor and the inductor are arranged on the same side in the thickness direction of the circuit board, and the inductor and the capacitor are superposed in the thickness direction of the circuit board, so that the occupied space of the filtering module is smaller, and the miniaturization design of the filtering module is facilitated.

According to some embodiments of the invention, the inductor is located on a side of the capacitor away from the circuit board; the inductor comprises a shell, a magnetic core and a coil, wherein the magnetic core is arranged in the shell, the coil is wound on the magnetic core, and the coil is provided with a plurality of outgoing lines; one side of the shell facing the circuit board is provided with a plurality of guide posts, and the outgoing lines respectively penetrate through the guide posts to be electrically connected with the circuit board.

According to some embodiments of the invention, the plurality of guide pillars constitute a plurality of groups of guide pillars, the plurality of groups of guide pillars are arranged at intervals along a first direction, each group of guide pillars comprises two guide pillars arranged at intervals along a second direction perpendicular to the first direction, a guide plate is connected between the two guide pillars of each group of guide pillars, and the capacitor is arranged between two adjacent guide plates.

According to some embodiments of the present invention, the inductor is plural, and the plural inductors are arranged along the first direction and connected to each other; the capacitors are multiple and are arranged along the first direction.

According to some embodiments of the invention, the housing comprises: a body, a top of which is open; the cover body is arranged at the top of the body, an accommodating space is defined between the cover body and the body, the magnetic core and the coil are arranged in the accommodating space, and the accommodating space is filled with heat dissipation glue.

According to some embodiments of the invention, the cover has at least one through hole formed therethrough.

According to some embodiments of the invention, a positioning column extending toward the cover is disposed in the main body, and the magnetic core is sleeved on the positioning column.

According to some embodiments of the invention, the body further comprises: one end of each first reinforcing rib is connected with the outer peripheral surface of one end, far away from the cover body, of the positioning column, and the other end of each first reinforcing rib is connected with the inner peripheral surface of the body; and each second reinforcing rib is connected between two adjacent first reinforcing ribs.

According to some embodiments of the invention, the filtering module further comprises: the inductor is arranged on the box body; and the heat conduction gasket is positioned between the box body and the inductor.

An electronic device according to an embodiment of the second aspect of the present invention includes the filtering module according to the above-mentioned embodiment of the first aspect of the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of a filter module according to an embodiment of the invention;

FIG. 2 is a schematic diagram of an assembly of capacitors and inductors of a filter module according to an embodiment of the invention;

FIG. 3 is a schematic diagram of the inductance of a filter module according to an embodiment of the invention;

fig. 4 is an exploded view of the inductance of a filter module according to an embodiment of the present invention.

Reference numerals:

100: a filtering module;

1: a circuit board; 2: a capacitor; 3: an inductance; 31: a housing; 311: a body; 3111: a positioning column;

3112: a first reinforcing rib; 3113: a second reinforcing rib; 312: a cover body; 3121: a through hole;

313: an accommodating space; 32: a magnetic core; 33: a coil; 34: a guide post; 35: a guide plate;

4: a box body; 5: a thermally conductive pad.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

A filtering module 100 according to an embodiment of the invention is described below with reference to fig. 1-4.

As shown in fig. 1-4, a filter module 100 according to an embodiment of the first aspect of the present invention includes at least one capacitor 2 and at least one inductor 3.

Specifically, the capacitor 2 is electrically connected to the circuit board 1, and the capacitor 2 is provided on one side in the thickness direction of the circuit board 1. The inductor 3 is provided on the above-mentioned one side in the thickness direction of the circuit board 1, the inductor 3 and the capacitor 2 are superposed in the thickness direction of the circuit board 1, and the inductor 3 is electrically connected to the circuit board 1.

For example, in the examples of fig. 1 and 2, the capacitor 2 and the inductor 3 are both located on the lower side of the circuit board 1, and the capacitor 2 and the inductor 3 are arranged up and down. Therefore, compared with the traditional filter module, the horizontal occupied space of the capacitor 2 and the inductor 3 is reduced, so that the size of the filter module 100 is reduced, and the miniaturization design of the filter module 100 is facilitated. Meanwhile, the capacitor 2 and the inductor 3 are both electrically connected with the circuit board 1, so that the filtering module 100 can normally work.

According to the filter module 100 of the embodiment of the invention, the capacitor 2 and the inductor 3 are both arranged on the same side of the circuit board 1 in the thickness direction, and the inductor 3 and the capacitor 2 are overlapped in the thickness direction of the circuit board 1, so that the occupied space of the filter module 100 is smaller, and the miniaturization design of the filter module 100 is facilitated.

According to some embodiments of the invention, the inductance 3 is located on a side of the capacitance 2 remote from the circuit board 1. Referring to fig. 1 and 2, a capacitor 2 and an inductor 3 are both located below a circuit board 1, and the capacitor 2 is located between the inductor 3 and the circuit board 1. Therefore, since the capacitor 2 has a relatively small volume, the capacitor 2 is disposed between the circuit board 1 and the inductor 3, so that the volume of the filter module 100 can be further reduced, and the structure of the filter module 100 is more compact.

Further, referring to fig. 3 and 4, the inductor 3 includes a case 31, a core 32, and a coil 33, the core 32 being disposed in the case 31, the coil 33 being wound around the core 32, the coil 33 having a plurality of lead wires. In the description of the present invention, "a plurality" means two or more. The shell 31 can protect the magnetic core 32 and the coil 33, and simultaneously can effectively ensure the cleanness of the magnetic core 32 and the coil 33, and prolong the service life of the inductor 3. A plurality of guide posts 34 are provided on a side of the housing 31 facing the circuit board 1, the guide posts 34 extend in a direction in which the circuit board 1 is located, and a plurality of lead wires are electrically connected to the circuit board 1 through the guide posts 34, respectively. From this, a plurality of guide posts 34 can play the guard action to a plurality of lead-out wires respectively, and moreover, a plurality of guide posts 34 can play the supporting role to circuit board 1, have improved filtering module 100's structural strength, and electric capacity 2 can be installed reliably between circuit board 1 and inductance 3 simultaneously, has prolonged electric capacity 2's life, and has improved assembly efficiency.

According to some embodiments of the present invention, as shown in fig. 3 and 4, the plurality of guide pillars 34 form a plurality of guide pillar sets, the plurality of guide pillar sets are spaced apart along a first direction, each guide pillar set includes two guide pillars 34 spaced apart along a second direction perpendicular to the first direction, a guide plate 35 is connected between the two guide pillars 34 of each guide pillar set, and the capacitor 2 is disposed between two adjacent guide plates 35. Specifically, the two ends of the guide plate 35 in the length direction are respectively provided with a mounting cylinder, and the two guide posts 34 of each guide post group respectively penetrate through the corresponding mounting cylinders, so that the guide plate 35 is fixed between the two guide posts 34. By arranging the guide plate 35, the supporting function of the guide post 34 can be effectively enhanced, and the circuit board 1 and the capacitor 2 can be better supported, so that the structural strength of the filter module 100 can be further improved. In addition, because the capacitor 2 is arranged between two adjacent guide plates 35, the capacitor 2 can be limited, and the capacitor 2 is convenient to mount.

According to some embodiments of the present invention, in conjunction with fig. 2 to 4, the inductor 3 is plural, and the plural inductors 3 are arranged along the first direction and connected to each other. The capacitor 2 is plural, and the plural capacitors 2 are arranged along the first direction. From this, through setting up a plurality of electric capacity 2 and a plurality of inductance 3, can improve the work efficiency of filtering module 100 effectively, and a plurality of inductances 3 link to each other along the first direction, and a plurality of electric capacity 2 are arranged along the first direction for filtering module 100's structure is compacter, can further reduce filtering module 100's volume.

According to some embodiments of the present invention, as shown in fig. 4, the housing 31 includes a body 311 and a cover 312, the top of the body 311 is open, the cover 312 is disposed on the top of the body 311, an accommodating space 313 is defined between the cover 312 and the body 311, and the magnetic core 32 and the coil 33 are disposed in the accommodating space 313. So set up for magnetic core 32 and coil 33 can be located the confined space, can guarantee the clean nature of magnetic core 32 and coil 33 effectively, have prolonged inductance 3's life. The receiving space 313 is filled with heat dissipation paste. When the inductor 3 operates, heat generated by the coil 33 and the magnetic core 32 can be transferred to the body 311 through the heat dissipation adhesive and transferred to the external air through the body 311, so as to dissipate heat of the coil 33 and the magnetic core 32. Compared with the traditional filter module, the accommodating space 313 is filled with heat dissipation glue, so that the contact area between the coil 33 and the magnetic core 32 and the heat dissipation glue is effectively increased, and the heat dissipation efficiency of the inductor 3 is improved. In addition, the heat dissipation glue has a vibration reduction effect, and can effectively increase the shock resistance of the inductor 3.

In some optional embodiments, at least one through hole 3121 is formed through the cover 312. For example, in the example of fig. 2 to 4, a plurality of through holes 3121 are formed in the cover 312, the through holes 3121 are arranged at intervals along the circumferential direction of the central axis of the cover 312, when the cover 312 is mounted on the body 311, the heat dissipation adhesive can be poured into the accommodating space 313 through the through holes 3121, the pouring is convenient, the material consumption of the cover 312 is reduced, and the cost is reduced.

According to some embodiments of the present invention, a positioning post 3111 is disposed in the body 311 and extends toward the cover 312, and the magnetic core 32 is disposed on the positioning post 3111. As shown in fig. 4, a positioning post 3111 is disposed in the middle of the bottom of the main body 311, and the positioning post 3111 extends in the vertical direction. When magnetic core 32 installs, can overlap magnetic core 32 on reference column 3111 to guarantee the accuracy of magnetic core 32's position, guarantee magnetic core 32's stability simultaneously, can effectively avoid magnetic core 32 to take place to rock in casing 31, guaranteed that inductance 3 can normally work.

Further, referring to fig. 4, the main body 311 further includes a plurality of first reinforcing ribs 3112 and a plurality of second reinforcing ribs 3113, one end of each first reinforcing rib 3112 is connected to an outer circumferential surface of one end of the positioning column 3111 away from the cover 312, the other end of each first reinforcing rib 3112 is connected to an inner circumferential surface of the main body 311, and each second reinforcing rib 3113 is connected between two adjacent first reinforcing ribs 3112. So set up, a plurality of first strengthening ribs 3112 and a plurality of second strengthening rib 3113 can play the supporting role to reference column 3111, guarantee reference column 3111's structural strength simultaneously.

According to some embodiments of the invention, the filter module 100 further comprises a case 4 and a thermal gasket 5, the inductor 3 being mounted on the case 4, the thermal gasket 5 being located between the case 4 and the inductor 3. For example, referring to fig. 1, the case 4 is mounted below the circuit board 1, the inductor 3 is mounted on a side of the case 4 facing the circuit board 1, and the heat conductive pad 5 is mounted on a bottom of the body 311 of the inductor 3. When the inductor 3 works, the coil 33 and the magnetic core 32 generate heat, a part of heat can be transmitted to the outside air through the side wall of the body 311 through the heat dissipation glue to be dissipated, and the other part of heat can be transmitted to the box body 4 through the bottom wall of the body 311 through the heat conduction gasket 5 and then transmitted to the outside through the box body 4 to be dissipated, so that the heat dissipation efficiency of the inductor 3 is further improved.

An electronic device (not shown) according to an embodiment of the second aspect of the present invention includes the filtering module 100 according to the above-mentioned embodiment of the first aspect of the present invention.

According to the electronic device of the embodiment of the present invention, by using the filter module 100 according to the above first aspect of the present invention, the electronic device can be conveniently designed in a miniaturized manner, and the heat dissipation effect of the electronic device can be improved.

Alternatively, the electronic device may be any of various types of computer system devices that are mobile or portable and perform wireless communications. In particular, the electronic device may be a mobile or smart phone (e.g., an iPhone (TM) based phone), a Portable gaming device (e.g., Nintendo DS (TM), Play Station Portable (TM), Game-boy Advance (TM), iPhone (TM)), a laptop, a PDA, a Portable internet appliance, a music player and data storage device, other handheld devices and a headset such as a watch, an in-ear headphone, a pendant, a headset, etc., and other wearable devices (e.g., a Head Mounted Device (HMD) such as electronic glasses, electronic clothing, an electronic bracelet, an electronic necklace, an electronic tattoo, or a smart watch).

Alternatively, the electronic device may be any of a number of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical devices, vehicle transportation equipment, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, Personal Digital Assistants (PDAs), Portable Multimedia Players (PMPs), moving Picture experts group (MPEG-1 or MPEG-2) Audio layer (MP3) players, portable medical devices, and digital cameras, and combinations thereof. In some cases, the electronic device may perform a variety of functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending telephone calls). If desired, the electronic device may be a portable device such as a cellular telephone, media player, other handheld device, wristwatch device, pendant device, earpiece device, or other compact portable device.

Other constructions and operations of any one or more electronic devices, such as any of various types of computer system devices that are mobile or portable and that perform wireless communications, according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filtering module, comprising:

the capacitor is electrically connected with the circuit board and arranged on one side of the circuit board in the thickness direction;

the inductor is arranged on one side of the thickness direction of the circuit board, the inductor and the capacitor are overlapped in the thickness direction of the circuit board, and the inductor is electrically connected with the circuit board.

2. The filter module of claim 1, wherein the inductor is located on a side of the capacitor away from the circuit board;

the inductor comprises a shell, a magnetic core and a coil, wherein the magnetic core is arranged in the shell, the coil is wound on the magnetic core, and the coil is provided with a plurality of outgoing lines;

one side of the shell facing the circuit board is provided with a plurality of guide posts, and the outgoing lines respectively penetrate through the guide posts to be electrically connected with the circuit board.

3. The filter module according to claim 2, wherein the plurality of guide pillars constitute a plurality of groups of guide pillars, the plurality of groups of guide pillars are arranged at intervals along a first direction, each group of guide pillars includes two guide pillars arranged at intervals along a second direction perpendicular to the first direction, a guide plate is arranged between the two guide pillars of each group of guide pillars, and the capacitor is arranged between two adjacent guide plates.

4. The filter module according to claim 3, wherein the inductor is plural, and the plural inductors are arranged along the first direction and connected to each other;

the capacitors are multiple and are arranged along the first direction.

5. The filtering module of claim 2, wherein the housing comprises:

a body, a top of which is open;

the cover body is arranged at the top of the body, an accommodating space is defined between the cover body and the body, the magnetic core and the coil are arranged in the accommodating space, and the accommodating space is filled with heat dissipation glue.

6. The filter module of claim 5, wherein the cover has at least one through hole formed therethrough.

7. The filter module of claim 5, wherein the body has a positioning post extending toward the cover, and the magnetic core is disposed on the positioning post.

8. The filtering module of claim 7, further comprising:

one end of each first reinforcing rib is connected with the outer peripheral surface of one end, far away from the cover body, of the positioning column, and the other end of each first reinforcing rib is connected with the inner peripheral surface of the body;

and each second reinforcing rib is connected between two adjacent first reinforcing ribs.

9. The filtering module according to any one of claims 1-8, further comprising:

the inductor is arranged on the box body;

and the heat conduction gasket is positioned between the box body and the inductor.

10. An electronic device, characterized in that it comprises a filtering module according to any one of claims 1-9.