CN217590761U - Patch filter - Google Patents

Abstract

The application is suitable for wave filter technical field, provides a paster filter, and paster filter includes: the shell is internally provided with an accommodating cavity; the filtering component is arranged in the accommodating cavity and comprises a patch capacitor and two patch inductor parts; the chip capacitor and the two chip inductor parts are arranged on the first side of the PCB mounting plate and are electrically connected with the first electric connection part to form a T-shaped filter circuit, and the second electric connection part is used for being electrically connected with an external electrical element; the paster filter that this application provided constitutes T type filter circuit through adopting paster electric capacity and two paster inductance portions and PCB mounting panel, when guaranteeing the small size of paster filter, has accomplished low direct current resistance and high rated current.

Description

Patch filter

Technical Field

The application belongs to the technical field of filters, and particularly relates to a patch filter.

Background

The filter is a frequency selection device, can make specific frequency component in the signal pass through, and other frequency component is attenuated greatly, the filter on the market at present is divided into passive filter and active filter two kinds according to the components and parts that adopt, wherein passive filter can be divided into low pass filter, high pass filter, band elimination filter and all-pass filter again according to the frequency channel of the signal that passes through, simultaneously because some electrical apparatus develop towards the direction of miniaturization gradually, the installation space of filter has also received certain restriction, therefore the paster filter of paster installation has obtained extensive application in each field because its less occupation space.

However, the existing patch filter in the market at present cannot achieve low direct current resistance and high rated current while ensuring small volume of the patch filter.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the present application is to provide a patch filter, which aims to solve the technical problem that the patch filter in the prior art cannot guarantee the small size of the patch filter and simultaneously achieves low direct current resistance and high rated current.

To achieve the above object, according to one aspect of the present application, there is provided a patch filter including: the shell is internally provided with an accommodating cavity; the filtering component is arranged in the accommodating cavity and comprises a patch capacitor and two patch inductor parts; the PCB mounting panel, the first side of PCB mounting panel is provided with first electric connecting portion, the second side of PCB mounting panel is provided with second electric connecting portion, first electric connecting portion and second electric connecting portion electricity are connected, and the first side at the PCB mounting panel is installed to paster electric capacity and two paster inductance portions to be connected with first electric connecting portion electricity, in order to constitute T type filter circuit, second electric connecting portion is used for being connected with outside electrical components electricity.

Optionally, two paster inductance parts are first paster magnetic bead and second paster magnetic bead respectively, and first electric connection portion includes: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part; the first magnetic bead connecting part comprises a first connecting area and a second connecting area, and two ends of the first paster magnetic bead are electrically connected with the first connecting area and the second connecting area respectively; the second magnetic bead connecting part comprises a third connecting area and a fourth connecting area, and two ends of the second patch magnetic beads are electrically connected with the third connecting area and the fourth connecting area respectively; the capacitor connecting part comprises a fifth connecting area and a sixth connecting area, and two ends of the chip capacitor are respectively and electrically connected with the fifth connecting area and the sixth connecting area; the second electric connection part comprises a first electric conduction part, a second electric conduction part, a third electric conduction part and a fourth electric conduction part, the first electric conduction part is electrically connected with the first connection area, and the second electric conduction part is electrically connected with the fourth connection area; the second connecting area, the third connecting area and the sixth connecting area are all electrically connected with the third conductive part; the fourth conductive portion is electrically connected to the fifth connection region.

Optionally, the first magnetic bead connection part and the second magnetic bead connection part are arranged side by side along a first direction, wherein the first connection region is located corresponding to the fourth connection region, the second connection region is located corresponding to the third connection region, and the fifth connection region and the sixth connection region are arranged at an interval along a second direction, wherein the second direction is perpendicular to the first direction, the fifth connection region is located corresponding to the second connection region, and the sixth connection region is located corresponding to the third connection region.

Optionally, the patch filter includes a first conductive buckle plate, a second conductive buckle plate, a third conductive buckle plate and a fourth conductive buckle plate, the first conductive buckle plate, the second conductive buckle plate, the third conductive buckle plate and the fourth conductive buckle plate are all buckled on the edge of the PCB mounting plate, the first conductive part and the first connection area are respectively arranged at two ends of the first conductive buckle plate, the second conductive part and the fourth connection area are respectively arranged at two ends of the second conductive buckle plate, the second connection area, the third connection area and the sixth connection area are arranged at a first end of the third conductive buckle plate, and the third conductive part is arranged at a second end of the third conductive buckle plate; the fourth conductive part and the fifth connecting area are respectively arranged at two ends of the fourth conductive pinch plate.

Optionally, two paster inductance parts are first paster magnetic bead and second paster magnetic bead respectively, and first electric connection portion includes: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part are arranged on the first magnetic bead connecting part; the first magnetic bead connecting part comprises a first electric connecting area and a second electric connecting area, and two ends of the first patch magnetic bead are respectively and electrically connected with the first electric connecting area and the second electric connecting area; the capacitor connecting part comprises a third electric connecting area and a fourth electric connecting area, and two ends of the capacitor connecting part are respectively and electrically connected with the third electric connecting area and the fourth electric connecting area; the second magnetic bead connecting part comprises a fifth electric connecting area and a sixth electric connecting area, two ends of the second patch magnetic bead are respectively and electrically connected with the fifth electric connecting area and the sixth electric connecting area, and the capacitor connecting part is positioned between the first magnetic bead connecting part and the second magnetic bead connecting part; the second electric connection part comprises a first electric connection part, a second electric connection part, a third electric connection part, a fourth electric connection part and a fifth electric connection part, the first electric connection part and the fourth electric connection part are electrically connected with the second electric connection area, the fourth electric connection area and the sixth electric connection area, the second electric connection part is electrically connected with the first electric connection area, the third electric connection part is electrically connected with the third electric connection area, and the fifth electric connection part is electrically connected with the fifth electric connection area.

Optionally, the first magnetic bead connecting portion, the second magnetic bead connecting portion and the capacitor connecting portion are arranged at intervals along the second direction.

Optionally, the patch filter includes a first conductive buckle plate, a second conductive buckle plate, a third conductive buckle plate and a fourth conductive buckle plate, the first conductive buckle plate, the second conductive buckle plate, the third conductive buckle plate and the fourth conductive buckle plate are all buckled on the edge of the PCB mounting plate, the second electrical connection area, the fourth electrical connection area and the sixth electrical connection area are all arranged at the first end of the first conductive buckle plate, the first electrical connection portion, the fourth electrical connection portion is all arranged at the second end of the first conductive buckle plate, the second electrical connection portion and the first electrical connection portion are respectively arranged at two ends of the second conductive buckle plate, the third electrical connection portion and the third electrical connection portion are respectively arranged at two ends of the third conductive buckle plate, and the fifth electrical connection portion are respectively arranged at two ends of the fourth conductive buckle plate.

Optionally, the housing is glued to the PCB mounting board.

Optionally, the first patch magnetic bead and the second patch magnetic bead are fixedly connected with the PCB mounting board through reflow soldering.

Optionally, the patch filter further includes a heat conduction portion disposed between the filter assembly and an inner wall of the housing to transfer heat of the filter assembly to the housing.

The patch filter provided by the application has the beneficial effects that: compared with the prior art, when the patch filter provided by the application is assembled, firstly, the patch capacitor and the two patch inductance parts are installed on the first electric connection part arranged on the first side of the PCB installation board, at the moment, the patch capacitor, the two patch inductance parts and the PCB installation board form a T-shaped filter circuit, then, the shell is fixedly installed on the first side of the PCB installation board, and the accommodating cavity arranged in the shell is used for accommodating the patch capacitor and the two patch inductance parts which are installed on the first electric connection part arranged on the first side of the PCB installation board; the paster filter that this application provided constitutes T type filter circuit through adopting paster electric capacity and two paster inductance portions and PCB mounting panel, when guaranteeing the small size of paster filter, has accomplished low direct current resistance and high rated current.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a patch filter provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a patch filter with a housing removed according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a patch filter provided in an embodiment of the present application with a housing and a filter assembly removed;

fig. 4 is a schematic structural diagram of a patch filter with parts removed according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a patch filter at another view angle according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a patch filter according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a patch filter with a housing removed according to another embodiment of the present application;

FIG. 8 is a schematic structural view of a filter assembly with a housing removed according to another embodiment of the present application;

FIG. 9 is a schematic view of a portion of the present application in section and shown removed in another embodiment;

fig. 10 is a schematic structural diagram of a patch filter at another view angle according to another embodiment of the present application;

reference numerals referred to in the above figures are detailed below:

10. a housing; 20. a filtering component; 21. a chip capacitor; 22. two chip inductor parts; 221. a first patch magnetic bead; 222. a second patch magnetic bead; 30. a PCB mounting plate; 31. a first electrical connection portion; 311. a first connection region; 3111. a first electrical connection region; 312. a second attachment zone; 3121. a second electrical connection region; 313. a third attachment zone; 3131. a third electrical connection region; 314. a fourth connecting region; 3141. a fourth electrical connection region; 315. a fifth attachment zone; 3151. a fifth electrical connection region; 316. a sixth attachment zone; 3161. a sixth electrical connection region; 32. a second electrical connection portion; 321. a first conductive portion; 322. a second conductive portion; 323. a third conductive portion; 324. a fourth conductive portion; 325. a first electric connection part; 326. a second electric connection part; 327. a third electric connection part; 328. a fourth electric connection part; 329. a fifth electric connection part; 33. a first conductive pinch plate; 34. a second conductive pinch plate; 35. a third conductive pinch plate; 36. and a fourth conductive pinch plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As described in the background art, at present, a filter is a frequency selection device, which can pass a specific frequency component in a signal and greatly attenuate other frequency components, and filters in the market at present are divided into a passive filter and an active filter according to adopted components, wherein the passive filter can be divided into a low-pass filter, a high-pass filter, a band-stop filter and an all-pass filter according to the frequency band of the passed signal, and meanwhile, because part of electric appliances are gradually developed towards miniaturization, the installation space of the filter is also limited to a certain extent, so that the patch filter installed by a patch is widely applied in various fields due to the small occupied space of the patch filter; however, the existing patch filter in the market at present cannot achieve low direct current resistance and high rated current while ensuring small size of the patch filter.

Referring to fig. 1 to 10, in order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present application provides a patch filter including: the filter comprises a shell 10, a filter assembly 20 and a PCB mounting plate 30, wherein an accommodating cavity is arranged inside the shell 10; the filter assembly 20 is arranged in the accommodating cavity, and the filter assembly 20 comprises a patch capacitor 21 and two patch inductor parts 22; a first electric connection part 31 is arranged on the first side of the PCB mounting plate 30, a second electric connection part 32 is arranged on the second side of the PCB mounting plate 30, the first electric connection part 31 is electrically connected with the second electric connection part 32, the patch capacitor 21 and the two patch inductor parts 22 are mounted on the first side of the PCB mounting plate 30 and are electrically connected with the first electric connection part 31 to form a T-shaped filter circuit, and the second electric connection part 32 is used for being electrically connected with an external electrical component; when the patch filter provided by the present embodiment is assembled, first, the patch capacitor 21 and the two patch inductors 22 are installed on the first electrical connection portion 31 disposed on the first side of the PCB mounting board 30, at this time, the patch capacitor 21, the two patch inductors 22, and the PCB mounting board 30 form a T-type filter circuit, then the housing 10 is fixedly installed on the first side of the PCB mounting board 30, and the accommodating cavity disposed inside the housing 10 accommodates the patch capacitor 21 and the two patch inductors 22 installed on the first electrical connection portion 31 disposed on the first side of the PCB mounting board 30, at this time, the installation of the patch filter provided by the present embodiment is completed, and when the patch filter provided by the present embodiment is installed, the installation of the patch filter provided by the present embodiment can be completed only by electrically connecting the second electrical connection portion 32 disposed on the second side of the PCB mounting board 30 and electrically connected to the first electrical connection portion 31 with an external electrical component; the patch filter provided by the embodiment adopts the patch capacitor 21, the two patch inductance parts 22 and the PCB mounting board 30 to form a T-shaped filter circuit, so that the small size of the patch filter is ensured, and simultaneously, the low direct current resistance and the high rated current are achieved.

Referring to fig. 1 to 5, in order to facilitate the installation of the patch capacitor 21 and the two patch inductor portions 22, and make the installed patch capacitor 21 and the two patch inductor portions 22 and the PCB mounting board 30 form a T-type filter circuit, the two patch inductor portions 22 in this embodiment are a first patch magnetic bead 221 and a second patch magnetic bead 222, and the first electrical connection portion 31 includes: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part; the first magnetic bead connection portion includes a first connection region 311 and a second connection region 312, and two ends of the first patch magnetic bead 221 are electrically connected to the first connection region 311 and the second connection region 312, respectively; the second magnetic bead connection portion comprises a third connection region 313 and a fourth connection region 314, and two ends of the second patch magnetic bead 222 are electrically connected with the third connection region 313 and the fourth connection region 314 respectively; the capacitor connecting portion includes a fifth connecting region 315 and a sixth connecting region 316, and both ends of the patch capacitor 21 are electrically connected to the fifth connecting region 315 and the sixth connecting region 316, respectively; the second electrical connection portion 32 includes a first conductive portion 321, a second conductive portion 322, a third conductive portion 323, and a fourth conductive portion 324, the first conductive portion 321 is electrically connected to the first connection region 311, and the second conductive portion 322 is electrically connected to the fourth connection region 314; the second connection region 312, the third connection region 313, and the sixth connection region 316 are electrically connected to the third conductive portion 323; the fourth conductive portion 324 is electrically connected to the fifth connection region 315. By arranging the first connection region 311, the second connection region 312, the third connection region 313, the fourth connection region 314, the fifth connection region 315 and the sixth connection region 316 on the first electrical connection portion 31, the mounting efficiency of the chip capacitor 21 and the two chip inductor portions 22 can be effectively improved, so that the production efficiency of the chip filter is effectively improved, and meanwhile, the second conductive portion 322 is electrically connected with the fourth connection region 314 by electrically connecting the first conductive portion 321 with the first connection region 311; the second connection region 312, the third connection region 313, and the sixth connection region 316 are electrically connected to the third conductive portion 323; the fourth conductive portion 324 is electrically connected to the fifth connection region 315, so that the patch filter and the two patch inductor portions 22 form a T-shaped filter circuit together with the PCB mounting board 30 after being mounted on the PCB mounting board 30 at corresponding positions, so that the patch filter provided by this embodiment can achieve low dc resistance and high rated current while ensuring a small size of the patch filter.

Referring to fig. 1 to 5, in order to enable the mounted chip capacitors 21 and two chip inductors 22 to form a T-filter circuit with the PCB mounting board 30, the first magnetic bead connection portions and the second magnetic bead connection portions in this embodiment are arranged side by side along a first direction, wherein the position of the first connection region 311 corresponds to the position of the fourth connection region 314, the position of the second connection region 312 corresponds to the position of the third connection region 313, and the fifth connection region 315 and the sixth connection region 316 are arranged at intervals along a second direction, wherein the second direction is perpendicular to the first direction, the position of the fifth connection region 315 corresponds to the position of the second connection region 312, and the position of the sixth connection region 316 corresponds to the position of the third connection region 313. The first direction is a width direction of the patch filter, and of course, the first direction may be another direction on the patch filter, the first magnetic bead connection portion and the second magnetic bead connection portion are arranged side by side along the first direction, the fifth connection region 315 and the sixth connection region 316 are arranged at intervals along the second direction, and the position of the first connection region 311 corresponds to the position of the fourth connection region 314, the position of the second connection region 312 corresponds to the position of the third connection region 313, the position of the fifth connection region 315 corresponds to the position of the second connection region 312, and the position of the sixth connection region 316 corresponds to the position of the third connection region 313, so that after the patch capacitor 21 and the two patch inductor portions 22 are mounted on the PCB mounting board 30 in corresponding positions, a T-type filter circuit is formed with the PCB mounting board 30, and the patch filter provided in this embodiment can achieve low dc resistance and high rated current while ensuring a small volume.

Referring to fig. 1 to 5, in a preferred embodiment, in order to facilitate assembly of the patch filter, the patch filter in this embodiment includes a first conductive clip plate 33, a second conductive clip plate 34, a third conductive clip plate 35, and a fourth conductive clip plate 36, the first conductive clip plate 33, the second conductive clip plate 34, the third conductive clip plate 35, and the fourth conductive clip plate 36 are all clipped on an edge of the PCB mounting board 30, a first conductive portion 321 and a first connection region 311 are respectively disposed at two ends of the first conductive clip plate 33, a second conductive portion 322 and a fourth connection region 314 are respectively disposed at two ends of the second conductive clip plate 34, a second connection region 312, a third connection region 313, and a sixth connection region 316 are disposed at a first end of the third conductive clip plate 35, and a third conductive portion 323 is disposed at a second end of the third conductive clip plate 35; the fourth conductive portion 324 and the fifth connecting portion 315 are disposed at two ends of the fourth conductive clip 36, respectively. When the conductive buckle plate provided by the embodiment is installed, only the first conductive buckle plate 33, the second conductive buckle plate 34, the third conductive buckle plate 35 and the fourth conductive buckle plate 36 need to be buckled on the corresponding edges of the PCB installation plate 30 respectively, and the connection area and the conductive part on each conductive buckle plate are in correct positions, by respectively arranging the first conductive part 321 and the first connection area 311 at two ends of the first conductive buckle plate 33, respectively arranging the second conductive part 322 and the fourth connection area 314 at two ends of the second conductive buckle plate 34, arranging the second connection area 312, the third connection area 313 and the sixth connection area 316 at a first end of the third conductive buckle plate 35, and arranging the third conductive part 323 at a second end of the third conductive buckle plate 35; the fourth conductive part 324 and the fifth connection area 315 are respectively disposed at two ends of the fourth conductive buckle 36, so that the structure of the patch filter can be effectively simplified, and the production cost can be effectively reduced.

Referring to fig. 6 to 10, in another embodiment of the present application, in order to facilitate the installation of the patch capacitor 21 and the two patch inductor portions 22, and make the installed patch capacitor 21, the two patch inductor portions 22 and the PCB mounting board 30 form a T-type filter circuit, the two patch inductor portions 22 in this embodiment are a first patch magnetic bead 221 and a second patch magnetic bead 222, respectively, and the first electrical connection portion 31 includes: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part; the first magnetic bead connection portion includes a first electrical connection region 3111 and a second electrical connection region 3121, and two ends of the first patch magnetic bead 221 are electrically connected to the first electrical connection region 3111 and the second electrical connection region 3121, respectively; the capacitor connection part includes a third electrical connection region 3131 and a fourth electrical connection region 3141, and both ends of the patch capacitor 21 are electrically connected to the third electrical connection region 3131 and the fourth electrical connection region 3141, respectively; the second magnetic bead connection portion includes a fifth electrical connection region 3151 and a sixth electrical connection region 3161, and two ends of the second patch magnetic bead 222 are electrically connected to the fifth electrical connection region 3151 and the sixth electrical connection region 3161, respectively; the capacitor connecting part is positioned between the first magnetic bead connecting part and the second magnetic bead connecting part; the second electrical connection portion 32 includes a first electrical connection portion 325, a second electrical connection portion 326, a third electrical connection portion 327, a fourth electrical connection portion 328 and a fifth electrical connection portion 329, the first electrical connection portion 325 and the fourth electrical connection portion 328 are electrically connected to the second electrical connection region 3121, the fourth electrical connection region 3141 and the sixth electrical connection region 3161, the second electrical connection portion 326 is electrically connected to the first electrical connection region 3111, the third electrical connection portion 327 is electrically connected to the third electrical connection region 3131, and the fifth electrical connection portion 329 is electrically connected to the fifth electrical connection region 3151. The first electrical connection region 3111, the second electrical connection region 3121, the third electrical connection region 3131, the fourth electrical connection region 3141, the fifth electrical connection region 3151 and the sixth electrical connection region 3161 are disposed on the first electrical connection portion 31, so that the mounting efficiency of the patch capacitor 21 and the two patch inductance portions 22 can be effectively improved, and the production efficiency of the patch filter can be effectively improved, meanwhile, the first electrical connection portion 325 and the fourth electrical connection portion 328 are electrically connected with the second electrical connection region 3121, the fourth electrical connection region 3141 and the sixth electrical connection region 3161, the second electrical connection portion 326 is electrically connected with the first electrical connection region 3111, the third electrical connection portion 327 is electrically connected with the third electrical connection region 3131, and the fifth electrical connection portion 329 is electrically connected with the fifth electrical connection region 3151, so that the patch filter and the two patch inductance portions 22 can form a T-type filter circuit together with the PCB mounting board 30 after being mounted on the PCB mounting board 30 in corresponding positions, and the patch filter provided in this embodiment can achieve low dc resistance and high rated current while ensuring a small size.

Referring to fig. 6 to 10, in another embodiment of the present application, in order to form a T-shaped filter circuit with the PCB mounting board 30 after the patch capacitor 21 and the two patch inductor portions 22 are mounted, the first magnetic bead connection portion, the second magnetic bead connection portion, and the capacitor connection portion in the embodiment are disposed at intervals along the second direction. Through setting up first magnetic bead connecting portion, second magnetic bead connecting portion and electric capacity connecting portion along second direction interval, can make behind the installation of paster electric capacity 21 and two paster inductance parts 22 correspond the position on PCB mounting panel 30, constitute T type filter circuit with PCB mounting panel 30, make the paster filter that this embodiment provided accomplish low direct current resistance and high rated current when guaranteeing the small volume of paster filter.

Referring to fig. 6 to 10, in another embodiment of the present invention, in order to facilitate assembly of the patch filter, the patch filter includes a first conductive clip 33, a second conductive clip 34, a third conductive clip 35, and a fourth conductive clip 36, the first conductive clip 33, the second conductive clip 34, the third conductive clip 35, and the fourth conductive clip 36 are all clipped on an edge of the PCB mounting board 30, a second electrical connection region 3121, a fourth electrical connection region 3141, and a sixth electrical connection region 3161 are all disposed at a first end of the first conductive clip 33, a first electrical connection portion 325, and a fourth electrical connection portion 328 are all disposed at a second end of the first conductive clip 33, a second electrical connection portion 326 and a first electrical connection region 3111 are respectively disposed at two ends of the second conductive clip 34, a third electrical connection portion 327 and a third electrical connection region 3131 are respectively disposed at two ends of the third conductive clip 35, and a fifth electrical connection portion 329 and a fifth electrical connection region 3151 are respectively disposed at two ends of the fourth conductive clip 36. The second electric connection region 3121, the fourth electric connection region 3141 and the sixth electric connection region 3161 are disposed at the first end of the first conductive buckle plate 33, the first electric connection part 325 and the fourth electric connection part 328 are disposed at the second end of the first conductive buckle plate 33, the second electric connection part 326 and the first electric connection region 3111 are disposed at both ends of the second conductive buckle plate 34, the third electric connection part 327 and the third electric connection region 3131 are disposed at both ends of the third conductive buckle plate 35, and the fifth electric connection part 329 and the fifth electric connection region 3151 are disposed at both ends of the fourth conductive buckle plate 36, so that the structure of the patch filter can be effectively simplified, thereby effectively reducing the production cost.

In order to effectively improve the reliability of the patch filter, the housing 10 and the PCB mounting board 30 are glued together in the embodiment; through gluing casing 10 and PCB mounting panel 30 together, can effectual improvement casing 10 and PCB mounting panel 30 integratively, prevent that mechanical stress from causing the damage to the paster filter to effectual improvement paster filter anti-vibration, shock resistance, and then improve the reliability of product.

In order to avoid damage to the chip capacitor 21 and the chip magnetic bead caused by manual welding, the first chip magnetic bead 221 and the second chip magnetic bead 222 in this embodiment are fixedly connected to the PCB mounting board 30 by reflow soldering. With first paster magnetic bead 221 and second paster magnetic bead 222 with PCB mounting panel 30 fixed connection through reflow soldering, can avoid manual welding to cause the damage to paster electric capacity 21 and paster magnetic bead to effectual improvement paster filter's life.

In order to effectively improve the heat dissipation performance of the patch filter, the patch filter in this embodiment further includes a heat conduction portion disposed between the filter assembly 20 and the inner wall of the housing 10, so as to transfer the heat of the filter assembly 20 to the housing 10. By providing the heat conduction portion between the filter assembly 20 and the inner wall of the housing 10, the heat generated by the filter assembly 20 can be transmitted to the housing 10 through the heat conduction portion, thereby effectively improving the heat dissipation performance of the patch filter.

In summary, the patch filter provided in this embodiment has at least the following beneficial effects: compared with the prior art, when the patch filter provided by the present embodiment is assembled, first, the patch capacitor 21 and the two patch inductance parts 22 are installed on the first electrical connection part 31 arranged on the first side of the PCB mounting board 30, at this time, the patch capacitor 21, the two patch inductance parts 22 and the PCB mounting board 30 constitute a T-type filter circuit, then, the housing 10 is fixedly installed on the first side of the PCB mounting board 30, and the accommodating cavity arranged inside the housing 10 accommodates the patch capacitor 21 and the two patch inductance parts 22 installed on the first electrical connection part 31 arranged on the first side of the PCB mounting board 30, at this time, the patch filter provided by the present embodiment is installed, when the patch filter provided by the present embodiment is installed, only the second electrical connection part 32 arranged on the second side of the PCB mounting board 30 and electrically connected with the first electrical connection part 31 is electrically connected with an external electrical component, and the patch filter provided by the present embodiment can be installed; the patch filter provided by the embodiment adopts the patch capacitor 21, the two patch inductor parts 22 and the PCB mounting board 30 to form a T-shaped filter circuit, so that the small size of the patch filter is ensured, and simultaneously, the low direct current resistance and the high rated current are achieved.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A patch filter, comprising:

the device comprises a shell (10), wherein an accommodating cavity is formed in the shell (10);

the filter assembly (20), the filter assembly (20) is arranged in the accommodating cavity, and the filter assembly (20) comprises a patch capacitor (21) and two patch inductor parts (22);

PCB mounting panel (30), the first side of PCB mounting panel (30) is provided with first electric connecting portion (31), the second side of PCB mounting panel (30) is provided with second electric connecting portion (32), first electric connecting portion (31) with second electric connecting portion (32) electricity is connected, paster electric capacity (21) and two paster inductance portion installs the first side of PCB mounting panel (30), and with first electric connecting portion (31) electricity is connected to constitute T type filter circuit, second electric connecting portion (32) are used for being connected with outside electrical components electricity.

2. The patch filter according to claim 1, wherein the two patch inductance sections are a first patch magnetic bead (221) and a second patch magnetic bead (222), respectively, and the first electrical connection section (31) includes: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part are arranged on the first magnetic bead connecting part; the first magnetic bead connecting part comprises a first connecting area (311) and a second connecting area (312), and two ends of the first patch magnetic bead (221) are respectively and electrically connected with the first connecting area (311) and the second connecting area (312); the second magnetic bead connecting part comprises a third connecting region (313) and a fourth connecting region (314), and two ends of the second patch magnetic bead (222) are respectively and electrically connected with the third connecting region (313) and the fourth connecting region (314); the capacitor connecting part comprises a fifth connecting area (315) and a sixth connecting area (316), and two ends of the patch capacitor (21) are respectively and electrically connected with the fifth connecting area (315) and the sixth connecting area (316);

the second electrical connection portion (32) includes a first conductive portion (321), a second conductive portion (322), a third conductive portion (323), and a fourth conductive portion (324), the first conductive portion (321) is electrically connected to the first connection region (311), and the second conductive portion (322) is electrically connected to the fourth connection region (314); said second connection region (312), said third connection region (313), and said sixth connection region (316) are all electrically connected to said third conductive portion (323); the fourth conductive portion (324) is electrically connected to the fifth connection region (315).

3. A patch filter according to claim 2, wherein the first and second magnetic bead connections are arranged side by side in a first direction, wherein the first connection region (311) has a position corresponding to the position of the fourth connection region (314), wherein the second connection region (312) has a position corresponding to the position of the third connection region (313), wherein the fifth and sixth connection regions (315, 316) are arranged at a distance in a second direction, wherein the second direction is perpendicular to the first direction, wherein the position of the fifth connection region (315) corresponds to the position of the second connection region (312), and wherein the position of the sixth connection region (316) corresponds to the position of the third connection region (313).

4. The patch filter according to claim 3, wherein the patch filter comprises a first conductive buckle plate (33), a second conductive buckle plate (34), a third conductive buckle plate (35) and a fourth conductive buckle plate (36), the first conductive buckle plate (33), the second conductive buckle plate (34), the third conductive buckle plate (35) and the fourth conductive buckle plate (36) are buckled on the edge of the PCB mounting plate (30), the first conductive part (321) and the first connection region (311) are respectively arranged at two ends of the first conductive buckle plate (33), the second conductive part (322) and the fourth connection region (314) are respectively arranged at two ends of the second conductive buckle plate (34), the second connection region (312), the third connection region (313) and the sixth connection region (316) are arranged at a first end of the third conductive buckle plate (35), and the third conductive part (323) is arranged at a second end of the third conductive buckle plate (35); the fourth conductive part (324) and the fifth connecting area (315) are respectively arranged at two ends of the fourth conductive buckle plate (36).

5. A patch filter according to claim 1, wherein the two patch inductance sections are a first patch bead (221) and a second patch bead (222), respectively, and the first electrical connection section (31) comprises: the first magnetic bead connecting part, the second magnetic bead connecting part and the capacitor connecting part; wherein the first bead connection part comprises a first electrical connection region (3111) and a second electrical connection region (3121), and two ends of the first patch bead (221) are electrically connected to the first electrical connection region (3111) and the second electrical connection region (3121), respectively; the capacitance connection part includes a third electrical connection region (3131) and a fourth electrical connection region (3141), both ends of the capacitance connection part being electrically connected to the third electrical connection region (3131) and the fourth electrical connection region (3141), respectively; the second magnetic bead connecting part comprises a fifth electric connecting region (3151) and a sixth electric connecting region (3161), two ends of the second patch magnetic bead (222) are respectively and electrically connected with the fifth electric connecting region (3151) and the sixth electric connecting region (3161), and the capacitor connecting part is positioned between the first magnetic bead connecting part and the second magnetic bead connecting part;

the second electric connection portion (32) comprises a first electric connection portion (325), a second electric connection portion (326), a third electric connection portion (327), a fourth electric connection portion (328) and a fifth electric connection portion (329), the first electric connection portion (325), the fourth electric connection portion (328) and the second electric connection region (3121), the fourth electric connection region (3141) and the sixth electric connection region (3161) are electrically connected, the second electric connection portion (326) and the first electric connection region (3111) are electrically connected, the third electric connection portion (327) and the third electric connection region (3131) are electrically connected, and the fifth electric connection portion (329) and the fifth electric connection region (3151) are electrically connected.

6. The patch filter of claim 5, wherein the first bead connection portion, the second bead connection portion, and the capacitor connection portion are spaced apart in a second direction.

7. The patch filter of claim 5, wherein the patch filter comprises a first conductive buckle plate (33), a second conductive buckle plate (34), a third conductive buckle plate (35) and a fourth conductive buckle plate (36), wherein the first conductive buckle plate (33), the second conductive buckle plate (34), the third conductive buckle plate (35) and the fourth conductive buckle plate (36) are all buckled on the edge of the PCB mounting plate (30), the second electrical connection region (3121), the fourth electrical connection region (3141) and the sixth electrical connection region (3161) are all arranged at a first end of the first conductive buckle plate (33), the first electrical connection region (325) and the fourth electrical connection region (328) are all arranged at a second end of the first conductive buckle plate (33), the second electrical connection region (326) and the first electrical connection region (3111) are respectively arranged at two ends of the second conductive buckle plate (34), the third electrical connection region (327) and the third electrical connection region (3111) are respectively arranged at two ends of the fifth electrical connection region (3151) and the fifth electrical connection region (3136) are respectively arranged at two ends of the fifth electrical connection region (3151).

8. A patch filter according to claim 2, wherein the housing (10) and the PCB mounting board (30) are glued together.

9. A patch filter according to claim 2, wherein the first patch magnetic bead (221) and the second patch magnetic bead (222) are fixedly connected to the PCB mounting board (30) by reflow soldering.

10. A patch filter according to any one of claims 1 to 9, further comprising a heat conducting portion provided between the filter assembly (20) and an inner wall of the housing (10) to transfer heat of the filter assembly (20) to the housing (10).

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