TWM619850U - Surface Mount Technology Filter - Google Patents

Abstract

A surface mount technology filter includes a magnetic winding base, a winding wire, a plurality of solder tabs and a plurality of lead wires. The magnetic winding base includes a magnetic base part and a magnetic winding part connected to the top surface of the magnetic base part, The winding wire is wound on the magnetic winding part, and a plurality of welding lugs are arranged at intervals with each other. Each welding lug is at least partially attached to the bottom surface of the magnetic base part. The first end of the lead wire is connected to the winding wire, and the second lead wire is The end extends to the soldering piece located on the bottom surface of the magnetic base, and the lead wires are connected to the side of the soldering piece away from the magnetic base, and the multiple lead wires and the multiple soldering pieces are arranged in one-to-one correspondence.

Description

Surface Mount Technology Filter

This creation relates to the technical field of electronic components, such as a surface mount technology filter.

The filter is used to effectively filter the frequency point of a specific frequency in the power line or the frequency outside the frequency point to obtain a power signal of a specific frequency, or to eliminate a power signal of a specific frequency.

RJ45 connector modules are used in some transformers for connecting components and filtering. However, in related technologies, RJ45 connector modules require manual operations in production, which takes a long time to manufacture and unstable product performance consistency; moreover, In the transformer, the RJ45 connector module and the PCB board are connected by welding, and the welding time is longer, which leads to a longer delivery cycle of the transformer.

This creation proposes a surface mount technology filter. The surface mount technology filter has a short production cycle and high performance stability. It can also solve the problem of long transformer shipping cycle.

A surface mount technology filter, comprising: a magnetic winding seat, comprising a magnetic base body and a magnetic winding part connected to the top surface of the magnetic base part; a winding wire wound on the magnetic winding part; A plurality of soldering pieces are arranged at intervals, and each soldering piece is at least partially attached to the magnetic base The bottom surface of the body; and a plurality of lead wires, the first end of the lead wire is connected to the winding wire, and the second end of the lead wire extends to the solder tab located on the bottom surface of the magnetic base portion, In addition, the lead wires are connected to the side of the solder tabs away from the magnetic base portion, and a plurality of the lead wires and a plurality of the solder tabs are arranged in a one-to-one correspondence.

In an embodiment, the surface mount technology filter further includes a magnetic cover, the magnetic cover is disposed on the magnetic base portion, and the magnetic base portion is surrounded to form an accommodating space, and the magnetic winding portion is located In the accommodating space.

In one embodiment, the magnetic cover includes a bottom plate and two side plates, the two side plates are respectively connected to both ends of the bottom plate, the bottom plate and the two side plates form a U-shaped structure, and the two side plates form a U-shaped structure. The ends of the side plates away from the bottom plate are respectively connected to the two ends of the magnetic base.

In an embodiment, the solder sheet includes a first plate and a second plate connected at an angle, the first plate is attached to the side surface of the magnetic base, and the second plate is attached to the magnetic On the bottom surface of the base portion, the lead wires are connected to the first board and the second board.

In an embodiment, a wire routing groove is opened on the magnetic base portion, and the lead wire part is accommodated in the wire routing groove.

In one embodiment, the number of the lead wires is an even number, half of the lead wires are wound from the first side surface of the magnetic base portion to the bottom surface of the magnetic base portion, and the other half of the lead wires The wire is wound from the second side surface of the magnetic base portion to the bottom surface of the magnetic base portion, and the first side surface and the second side surface are arranged opposite to each other.

In an embodiment, an end of the magnetic winding portion away from the magnetic base portion has a limiting portion.

In an embodiment, the magnetic base part and the magnetic winding part are integrally formed.

In an embodiment, the lead wire is welded to the soldering sheet.

In an embodiment, the winding wire is an enameled wire.

1: Magnetic winding seat

11: Magnetic base

111: Cable trough

121: Limit

2: winding wire

3: Solder piece

31: The first board

32: second board

4: Lead wire

5: Magnetic cover

51: bottom plate

52: side panel

[Figure 1] is a schematic view of the structure of a surface mount technology filter provided by an embodiment of the present creation.

[Fig. 2] is a schematic diagram of another view of the structure of the surface mount technology filter provided by an embodiment of this creation.

[Figure 3] is a schematic diagram of an exploded structure of a surface mount technology filter provided by an embodiment of this creation.

[Figure 4] is an enlarged view of A in Figure 1.

[Figure 5] is a schematic diagram of part of the structure of a surface mount technology filter provided by an embodiment of this creation.

In the description of this creation, unless otherwise clearly specified and limited, the terms "connected", "connected", and "installed" should be understood in a broad sense, for example: it can be an installation connection, a detachable connection, or a mechanical connection. The connection may also be an electrical connection, it may be a direct connection, or an indirect connection through an intermediate medium, and it may be a connection between two elements or an interaction relationship between two elements. For those with general knowledge in the field, they can understand the specific meaning of the above terms in this creation according to the specific situation.

In the description of this creation, unless expressly stipulated and limited otherwise, the "upper" or "lower" of the first feature of the second feature may include direct contact between the first feature and the second feature, or it may include the first feature The second feature is not in direct contact but through another feature between them. Moreover, the "above", "above", and "above" the first feature on the second feature includes the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

The technical means of this creation will be further explained below in conjunction with the drawings and specific implementations.

As shown in Figures 1 to 5, this embodiment provides a surface mount technology filter, which includes a magnetic winding base 1, a winding wire 2, a plurality of solder tabs 3, and a plurality of lead wires 4. The magnetic winding base 1 It includes a magnetic base portion 11 and a magnetic winding portion connected to the top surface of the magnetic base portion 11; the winding wire 2 is wound on the magnetic winding portion; a plurality of solder tabs 3 are spaced apart from each other and are attached to the magnetic base portion 11 , Each solder tab 3 is at least partially attached to the bottom surface of the magnetic base portion 11; the side of the magnetic base portion 11 away from the magnetic winding portion is the bottom surface, the first end of the lead wire 4 is connected to the winding wire 2, and the lead wire 4 The second end extends to the solder lug 3 located on the bottom surface of the magnetic base portion 11, and the lead wire 4 is connected to the side of the solder lug 3 away from the magnetic base portion 11, and the multiple lead wires 4 correspond to the multiple solder lugs 3 one-to-one set up. In this embodiment, the winding wire 2 is an enameled wire.

The surface mount technology filter provided in this embodiment can replace the RJ45 connector module in the transformer in the related technology. The surface mount technology filter has a simple structure and can use automatic winding equipment to wind the winding wire 2. The length and the number of turns can be accurately controlled. Therefore, the surface mount technology filter has a short production cycle and high performance stability; moreover, the follow-up can be beneficial The surface mount technology is used to attach the solder lug 3 to the PCB board. The surface mount technology is much more efficient than soldering. Therefore, it can also shorten the delivery cycle of the transformer.

The surface mount technology filter provided in this embodiment further includes a magnetic cover 5, which is arranged on the magnetic base portion 11, and is enclosed with the magnetic base portion 11 to form an accommodating space, and the magnetic winding portion is located in the accommodating space . The magnetic cover 5 and the magnetic winding base 1 are connected to form a magnetic circuit, thereby realizing the filtering function.

As shown in Figure 3, the magnetic cover 5 includes a bottom plate 51 and two side plates 52 respectively connected to both ends of the bottom plate 51. The bottom plate 51 and the two side plates 52 form a U-shaped structure, and the ends of the two side plates 52 away from the bottom plate 51 are respectively connected. At both ends of the magnetic base portion 11. The U-shaped structure not only forms a loop with the magnetic base portion 11, but also the winding wire 2 can be exposed through the gap between the two side plates 52, which is convenient for checking the winding yield of the winding wire 2. In this embodiment, the magnetic cover 5 is adhered to two opposite sides of the top surface of the magnetic base portion 11.

As shown in FIG. 4, the solder tab 3 includes a first plate 31 and a second plate 32 connected at an angle. The first plate 31 is attached to the side of the magnetic base portion 11, and the second plate 32 is attached to the magnetic base portion 11 On the bottom surface, the lead wire 4 is connected to the first board 31 and the second board 32. In this embodiment, the magnetic base portion 11 has a cubic structure, and the side and bottom surfaces of the magnetic base portion 11 are perpendicular to each other. The first plate 31 and the second plate 32 are arranged to be perpendicular to each other, so that the first plate 31 is attached to the magnetic base body. On the side surface of the part 11, the second plate 32 is attached to the bottom surface of the magnetic base part 11. The lead wire 4 is from the top surface of the magnetic base part 11, bypassing the first plate 31 on the side surface, and extends to the second plate on the bottom surface. 32. Improve the firmness of the connection between the lead wire 4 and the solder lug 3.

In one embodiment, the lead wire 4 is welded to the solder tab 3 to ensure the firmness of the connection between the two.

As shown in FIG. 5, a wiring groove 111 is opened on the magnetic base portion 11, and part of the lead wires 4 are accommodated in the wiring groove 111. In this embodiment, the wire routing groove 111 is opened on the top surface of the magnetic base portion 11, and one end of the lead wire 4 is led out from the winding wire 2 and contained in the wire routing groove 111, and then is wound on the soldering sheet 3, and the wire is routed The arrangement of the groove 111 defines the position of the lead wire 4 to prevent the lead wire 4 from moving.

In one embodiment, the number of lead wires 4 is an even number, half of the lead wires 4 are wound from the first side surface of the magnetic base portion 11 to the bottom surface of the magnetic base portion 11, and the other half of the lead wires 4 are drawn from the magnetic base portion. The second side surface of 11 is wound to the bottom surface of the magnetic base portion 11, and the first side surface and the second side surface are arranged opposite to each other. In this embodiment, there are six lead wires 4, and the positions where the six lead wires 4 are connected to the winding wire 2 are evenly distributed around the circumference of the magnetic winding portion, and three of the lead wires 4 bypass the magnetic base portion 11 On the first side surface, the other three lead wires 4 go around the second side surface of the magnetic base portion 11. The connection position between the two side plates 52 of the magnetic cover 5 and the magnetic base portion 11 is offset from the first side and the second side, so that the lead wire 4 is wound out from between the two side plates 52, avoiding the side plate 52 from interfering with the lead wire 4 The layout causes interference.

In an embodiment, an end of the magnetic winding portion away from the magnetic base portion 11 has a limiting portion 121. The limiting portion 121 has a relatively large diameter and has a limiting effect on the winding wire 2 wound on the magnetic winding portion.

In one embodiment, the magnetic base portion 11 and the magnetic winding portion are integrally formed, which further shortens the production cycle of the surface mount technology filter.

This creation requires the priority of the Chinese patent application whose application date is March 15, 2021 and the application number is 202120535359.4. The entire content of this application is incorporated into this creation by reference.

11: Magnetic base

2: winding wire

3: Solder piece

4: Lead wire

5: Magnetic cover

Claims (10)

A surface mount technology filter, which is characterized by: a magnetic winding seat (1), including a magnetic base part (11) and a magnetic winding part connected to the top surface of the magnetic base part (11); winding wire ( 2), wound on the magnetic winding part; a plurality of welding tabs (3) are arranged at intervals, each of the welding tabs (3) is at least partially attached to the bottom surface of the magnetic base part (11); and more A lead wire (4), the first end of the lead wire (4) is connected to the winding wire (2), and the second end of the lead wire (4) extends to the bottom surface of the magnetic base portion (11) On the soldering piece (3), and the lead wire (4) is connected to the side of the soldering piece (3) away from the magnetic base portion (11), a plurality of the lead wires (4) and a plurality of the soldering pieces (3) ) One-to-one correspondence setting. The surface mount technology filter according to claim 1, which further comprises a magnetic cover (5), the magnetic cover (5) is arranged on the magnetic base part (11) and surrounds the magnetic base part (11) An accommodating space is formed, and the magnetic winding part is located in the accommodating space. The surface mount technology filter according to claim 2, wherein the magnetic cover (5) includes a bottom plate (51) and two side plates (52), and the two side plates (52) are respectively connected to the bottom plate (51) The bottom plate (51) and the two side plates (52) form a U-shaped structure, and the ends of the two side plates (52) facing away from the bottom plate (51) are respectively connected to the two sides of the magnetic base part (11). end. The surface mount technology filter according to claim 1, wherein the solder tab (3) includes a first board (31) and a second board (32) connected at an angle, and the first board (31) is attached to On the side of the magnetic base (11), the second plate (32) is attached to the bottom surface of the magnetic base (11), and the lead wire (4) is connected to the first plate (31) and the second plate (31). On the board (32). The surface mount technology filter according to claim 1, wherein the magnetic base portion (11) is provided with a wiring groove (111), and the lead wire (4) is partially accommodated in the wiring groove (111) Inside. The surface mount technology filter according to claim 1, wherein the number of the lead wires (4) is an even number, and half of the lead wires (4) are wound from the first side surface of the magnetic base portion (11) To the bottom surface of the magnetic base portion (11), the other half of the lead wires (4) are wound from the second side surface of the magnetic base portion (11) to the bottom surface of the magnetic base portion (11), the first side surface and The second side faces are arranged oppositely. The surface mount technology filter according to claim 1, wherein the end of the magnetic winding part away from the magnetic base part (11) has a limit part (121). The surface mount technology filter according to claim 1, wherein the magnetic base part (11) and the magnetic winding part are integrally formed. The surface mount technology filter according to any one of claims 1 to 8, wherein the lead wire (4) is soldered to the solder tab (3). The surface mount technology filter according to any one of claims 1 to 8, wherein the winding wire (2) is an enameled wire.

Images