阅读说明：本技术 一种电磁滤波器 (Electromagnetic filter ) 是由 于凯 李旺 马双兵 庄德水 于 2021-09-24 设计创作，主要内容包括：本发明涉及电磁滤波器技术领域,提供一种电磁滤波器,至少包括：主体；导电片,设置在所述主体上,所述导电片上设置有第一连接部与第二连接部,所述第一连接部适于与电子元器件相连,所述第二连接部适于与外部器件相连。本发明提供的电磁滤波器,使用导电片来连接各电子元器件,相比于PCB板,导电片的散热性更好,可以及时的将电子元器件散发的热量转移走,防止热量集中在导电片上,有利于提高电磁滤波器的耐压能力。(The invention relates to the technical field of electromagnetic filters, and provides an electromagnetic filter, which at least comprises: a main body; the conducting strip is arranged on the main body, a first connecting portion and a second connecting portion are arranged on the conducting strip, the first connecting portion is suitable for being connected with an electronic component, and the second connecting portion is suitable for being connected with an external device. According to the electromagnetic filter provided by the invention, the conducting strips are used for connecting the electronic components, compared with a PCB (printed Circuit Board), the conducting strips have better heat dissipation performance, can timely transfer away heat emitted by the electronic components, prevent the heat from being concentrated on the conducting strips, and are favorable for improving the pressure resistance of the electromagnetic filter.)

1. An electromagnetic filter, characterized in that it comprises at least:

a main body;

the conducting strip is arranged on the main body, a first connecting portion and a second connecting portion are arranged on the conducting strip, the first connecting portion is suitable for being connected with an electronic component, and the second connecting portion is suitable for being connected with an external device.

2. The electromagnetic filter of claim 1,

still include electronic components, set up in the main part, electronic components is last to be provided with connecting pin, connecting pin with first connecting portion link to each other.

3. The electromagnetic filter of claim 2,

the electronic component device comprises two conductive sheets, wherein the two conductive sheets are arranged at intervals, and the electronic component device is positioned in an area between the two conductive sheets.

4. The electromagnetic filter according to claim 2 or 3,

one end of the first connecting part, which is far away from the conducting strip, is of a fork structure;

the connecting pins are inserted into the fork opening structure and connected by resistance welding.

5. The electromagnetic filter according to any one of claims 1-3,

the heat conducting gasket is attached to the conducting strip and suitable for transferring heat on the conducting strip.

6. The electromagnetic filter of claim 5,

the conductive sheet is provided with a bending part, and the heat conduction gasket is attached to the bending part.

7. The electromagnetic filter of claim 5,

the main part is a plastic shell, the conducting strip is located in the plastic shell as an injection molding insert, and the first connecting part and the second connecting part are both exposed outside the plastic shell.

8. The electromagnetic filter of claim 7,

the heat conducting gasket is clamped between the conducting strip and the supporting plate, and heat radiating holes are formed in the position, right facing the heat conducting gasket, of the surface of the supporting plate.

9. The electromagnetic filter of claim 1,

the second connecting part is a connecting lug arranged at the tail end of the conducting strip.

10. The electromagnetic filter of claim 1,

still include magnetic core and bubble cotton, the magnetic core sets up in the main part, the bubble cotton sets up the surface of magnetic core.

Technical Field

The invention relates to the technical field of electromagnetic filters, in particular to an electromagnetic filter.

Background

The electromagnetic filter is arranged in the automobile inverter unit and can play a role in reducing electromagnetic interference. The existing electromagnetic filter mainly comprises a plastic shell, a PCB (printed circuit board) and electronic components, and all the electronic components are connected through the PCB.

However, the electronic components generate heat after being energized, the heat is concentrated on the PCB, and the PCB fails after exceeding a certain temperature, which means that the voltage resistance of the electromagnetic filter is low.

Disclosure of Invention

Therefore, the present invention is directed to an electromagnetic filter, in which a PCB is used to connect electronic components in the electromagnetic filter in the prior art, so that the withstand voltage of the electromagnetic filter is low.

The present invention provides an electromagnetic filter, at least comprising: a main body; the conducting strip is arranged on the main body, a first connecting portion and a second connecting portion are arranged on the conducting strip, the first connecting portion is suitable for being connected with an electronic component, and the second connecting portion is suitable for being connected with an external device.

Furthermore, the electromagnetic filter further comprises an electronic component arranged on the main body, wherein a connecting pin is arranged on the electronic component and connected with the first connecting part.

Furthermore, the number of the conducting strips is two, the two conducting strips are arranged at intervals, and the electronic component device is located in the area between the two conducting strips.

Furthermore, one end of the first connecting part, which is far away from the conducting strip, is of a fork structure;

the connecting pins are inserted into the fork opening structure and connected by resistance welding.

Furthermore, the electromagnetic filter also comprises a heat conducting gasket which is attached to the conducting strip and is suitable for transferring heat on the conducting strip.

Further, a bending part is arranged on the conductive sheet, and the heat conduction gasket is attached to the bending part.

Furthermore, the main part is a plastic shell, the conducting strip is located in the plastic shell as an injection molding insert, and the first connecting part and the second connecting part are both exposed outside the plastic shell.

Further, the electromagnetic filter further comprises a supporting plate connected with the main body, the heat conduction gasket is clamped between the conducting strip and the supporting plate, and heat dissipation holes are formed in the position, right opposite to the heat conduction gasket, of the surface of the supporting plate.

Further, the second connecting portion is a connecting lug arranged at the tail end of the conducting strip.

Further, this electromagnetic filter still includes magnetic core and bubble are cotton, the magnetic core sets up on the main part, the bubble is cotton to be set up in the surface of magnetic core.

The technical scheme of the invention has the following advantages:

according to the electromagnetic filter provided by the invention, the conducting strips are used for connecting the electronic components, compared with a PCB (printed Circuit Board), the conducting strips have better heat dissipation performance, can timely transfer away heat emitted by the electronic components, prevent the heat from being concentrated on the conducting strips, and are favorable for improving the pressure resistance of the electromagnetic filter.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a partial structural schematic view of an electromagnetic filter provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an electromagnetic filter provided in one embodiment of the present invention;

fig. 3 is an enlarged view of a partial structure of an electromagnetic filter according to an embodiment of the present invention.

Description of reference numerals:

1. a main body; 2. A conductive sheet; 3. A capacitor;

4. connecting pins; 5. A first connection portion; 6. A thermally conductive gasket;

7. a support plate; 8. A magnetic core; 9. Soaking cotton;

10. a second connecting portion; 11. A bending part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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; can be mechanically or electrically connected; 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 addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 is a partial structural schematic view of an electromagnetic filter provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an electromagnetic filter provided in one embodiment of the present invention; as shown in fig. 1 and fig. 2, the present embodiment provides an electromagnetic filter, at least including: a main body 1; and the conducting strip 2 is arranged on the main body 1, a first connecting part 5 and a second connecting part 10 are arranged on the conducting strip 2, the first connecting part 5 is suitable for being connected with an electronic component, and the second connecting part 10 is suitable for being connected with an external device.

Specifically, the main body 1 is a plastic shell, the conductive sheet 2 is located in the plastic shell as an injection molding insert, and the first connecting portion 5 and the second connecting portion 10 are both exposed outside the plastic shell. The plastic shell is provided with a plurality of grooves for mounting electronic components. Wherein, conducting strip 2 can include two, and two conducting strips 2 set up at an interval, and the electronic component ware can be located the region between two conducting strips 2. For example, the electronic component may be a capacitor 3, and the capacitor 3 includes a positive connection pin 4 and a negative connection pin 4, wherein the positive connection pin 4 may be connected to the first connection portion 5 of one of the conductive sheets 2, and the negative connection pin 4 may be connected to the first connection portion 5 of the other conductive sheet 2. For example, the conductive sheet 2 may be a copper sheet or an aluminum sheet. The actual size and shape of the conductive plate 2 may be designed as desired. Wherein, the second connection portion 10 may be a connection lug disposed at the end of the conductive plate 2, and connected to an external device by a bolt.

According to the electromagnetic filter provided by the invention, the conducting strips 2 are used for connecting all electronic components, compared with a PCB (printed Circuit Board), the conducting strips 2 have better heat dissipation performance, heat emitted by the electronic components can be transferred away in time, the heat is prevented from being concentrated on the conducting strips 2, and the pressure resistance of the electromagnetic filter is favorably improved.

Fig. 3 is an enlarged view of a partial structure of an electromagnetic filter according to an embodiment of the present invention, as shown in fig. 3, in this embodiment, an end of the first connection portion 5 away from the conductive sheet 2 is a fork structure, the fork structure may be a U-shaped structure, the connection pin 4 may be a rod structure, the connection pin 4 is inserted into the fork structure, and then the fork structure may be pressed toward the middle to be in close contact with the connection pin 4, and finally, the connection is performed by resistance welding. Compared with a connection mode that a wave soldering process is adopted between an electronic component and a Printed Circuit Board (PCB), the arrangement has the advantages that soldering flux does not need to be added, the problem of incomplete soldering flux cleaning is solved, the voltage resistance, the insulation and other performances of the electromagnetic filter are not influenced, and the reliability is higher.

In this embodiment, the electromagnetic filter further includes a thermal pad 6 attached to the conductive sheet 2 and adapted to transfer heat from the conductive sheet 2. For example, the edge of the conductive sheet 2 away from the first connection board extends outward, and the extended portion is bent to form a bent portion 11, the bent angle of the bent portion 11 may be 90 °, and the heat conductive pad 6 is disposed to be attached to the bent portion 11. For example, the heat conductive pad 6 may be made of rubber. So set up, can make the heat on the conducting strip 2 in time transfer to the heat conduction gasket 6 on, prevent that the heat from concentrating on conducting strip 2. The number of the bending portions 11 may be multiple, and correspondingly, multiple heat-conducting pads 6 may be provided.

In this embodiment, the electromagnetic filter further includes a supporting plate 7, and the supporting plate 7 is disposed at the bottom of the main body 1, and can support and fix the heat conducting pad 6. Wherein, layer board 7 can be the plastics material, can adhesive joint between layer board 7 and the main part 1. The heat conducting gasket 6 is clamped between the bending part 11 and the supporting plate 7, and heat dissipation holes are formed in the position, right opposite to the heat conducting gasket 6, of the surface of the supporting plate 7, so that the speed of heat dissipation is accelerated.

In this embodiment, the electromagnetic filter further includes a magnetic core 8 and a foam 9, the magnetic core 8 is disposed on the main body 1, and the foam 9 is disposed on the surface of the magnetic core 8, so as to play a role of shock absorption.

In this embodiment, the number of the electronic components may be plural, and correspondingly, the plurality of first connecting portions 5 may be provided on the conductive sheet 2. The first connection portion 5 and the conductive plate 2 may be integrally formed. One of the connection pins 4 of a part of the electronic components is connected with the first connection portion 5, and the other connection pin 4 can be connected with a ground copper bar on the electromagnetic filter.

In this embodiment, the electronic component may also be located on a side of one of the conductive sheets 2 opposite to the other conductive sheet 2.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.