TWM635566U - Transformer shell and network transformer - Google Patents

Abstract

This creation discloses a transformer casing, which includes: a casing body, and a convex The protruding part is provided with a lead card slot, and the opening end is also provided with an embedding groove and a jack, and the embedding groove is connected to the jack; the pin includes an inserting section and an outer connecting section, the inserting section is connected to the outer connecting section, and the inserting section is connected to the outer connecting section. The connecting section is inserted in the socket, and the outer connecting section is embedded in the embedding groove; the lead wire clamping groove is used for leading the lead wire of the coil to the outer connecting section, and the outer connecting section is used for welding the lead wire.

Description

Transformer housing and network transformer

The invention relates to the technical field of transformers, in particular to a transformer shell.

Network transformers are often used in switches, routers or digital devices. Network transformers are a type of transformers. Network transformers include a shell, which includes a shell body and pins connected to the shell body. The shell body is provided with an inner cavity. Used to accommodate coils.

In the past, the shell body was provided with wire-wound pin pins, that is, the lead wire of the coil was wound on the pin pins. Using this shell body to produce network transformers requires manual winding, which requires a large amount of labor. inconvenient.

This creation aims to solve at least one of the technical problems existing in the prior art. For this reason, this creation proposes a transformer shell, which uses welding to weld the lead wires of the coil to the welding part, which is easy to operate, suitable for mechanized welding production, eliminating the need for manual winding, and convenient for mass production.

The invention also proposes a network transformer having the above-mentioned transformer housing.

A transformer housing according to the first aspect of the present invention, comprising: a housing body, a protruding portion is provided on the opening end, the protruding portion is provided with a lead wire slot, and the opening end is also provided with an embedding groove and an insertion slot. hole, the embedding groove communicates with the jack; pins, including the plug-in section and the outer connecting section, the The plug-in section is connected to the outer connecting section, the plug-in section is inserted into the jack, and the outer connecting section is embedded in the embedded groove; lead to the outer connecting section, and the outer connecting section is used for welding the lead wire.

A transformer housing according to an embodiment of the present invention has at least the following beneficial effects: the set pin has the outer connecting section, the outer connecting section is used for welding the lead wire, the set lead wire clamping groove and the outer connecting section Connecting segments, the lead wire clamping groove guides the lead wire of the coil to ride on the outer connecting segment, the lead wire clamping groove can temporarily fix the lead wire of the coil and limit the extension direction of the lead wire, at this time, the lead wire is welded on the outer connecting segment The connecting section becomes more convenient, which is convenient for batch welding and realizes mechanized welding lead wires; in addition, the embedded groove and socket provided can install the pin more tightly, and the plug-in section and the plug-in The hole is interference fit, the outer connecting section and the embedded groove are interference fit, the connection is simple, and the pin and the housing body can also be injected together.

According to some embodiments of the present invention, the two opposite subsections on the protruding part are provided with the lead clip slots, one subsection is provided with a plurality of the lead clip slots, and the embedded slot and the The jacks are all set in one-to-one correspondence with the lead wire slots, multiple lead wire slots can lead out a plurality of lead wires, and the two opposite parts can distinguish the incoming wire end and the outgoing wire end, which is convenient Connect other wires.

According to some embodiments of the present invention, a plurality of the pins are arranged in a straight line, the outer connecting section includes a welding part and a contact part, the welding part is integrally formed with the contact part, and the welding part is used to embed the contact part. The embedding groove, the contact portion is suspended, the contact portion is bent toward the middle of the housing body, the contact portion suspended in the air is elastic, and can elastically contact the PCB, and the bending of the contact portion can ensure that the adjacent The two contact portions have the same distance and are symmetrical about the middle of the housing body, that is, the plurality of pins are arranged symmetrically with respect to a symmetrical plane along the width direction of the housing body.

According to some embodiments of the present invention, the cross-section of the protruding part is set as a trapezoid, and the ladder The protruding part arranged in a shape has high structural strength, and even if the lead wire slots are opened, a certain structural strength can be maintained, so as to avoid the breakage of the bumps between the adjacent lead wire slots.

According to some embodiments of the present invention, an arc-shaped transition surface is provided at the junction of the lead wire slot and the inner cavity of the housing body, and the provided arc-shaped transition surface combined with the lead wire slot can prevent the lead wire from being cut off. It is also possible to profile-bend the leads.

According to some embodiments of the present invention, an arc-shaped guide surface is provided between the plug-in section and the outer connecting section, and the provided arc-shaped guiding surface can guide the lead wire into the outer connecting section to facilitate welding.

A network transformer according to the embodiment of the second aspect of the present invention includes the transformer casing described in the embodiment of the first aspect.

A network transformer according to an embodiment of the present invention has at least the following beneficial effects: the set pins have the outer connection section, the outer connection section is used for welding lead wires, the set lead wire clamping groove and the set The outer connection section is combined, the lead wire of the lead wire clamping groove guides the coil to ride on the outer connection section, the lead wire clamping groove can temporarily fix the lead wire of the coil and limit the extension direction of the lead wire, and then weld the lead wire on the outer connection section The outer connection section becomes more convenient, which is convenient for batch welding and realizes mechanized welding of leads; in addition, the embedded groove and socket provided can make the pins more tightly installed, and the plug-in section and the The socket is interference fit, and the outer connection section and the insertion groove are interference fit, so that the connection is simple, and the pin and the shell body can also be injection molded together.

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 which follows, or may be learned by practice of the invention.

100: shell body

110: protruding part

111: lead card slot

112: Division

113: Arc transition surface

120: Embedding groove

130: jack

200: pin

210: plug-in section

220: Outer link

221: welding part

222: contact part

230: arc guide surface

The above-mentioned and/or additional aspects and advantages of the present invention are described in conjunction with the following drawings to the embodiments It will become obvious and easy to understand in the description, where:

Fig. 1 is a schematic structural diagram of a transformer casing of the present invention.

FIG. 2 is an exploded diagram of pin explosion of the transformer housing shown in FIG. 1 .

FIG. 3 is a top view of the transformer housing shown in FIG. 1 .

FIG. 4 is a partial cross-sectional view of the transformer housing shown in FIG. 1 .

Embodiments of the present invention are described in detail below, and examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of this creation, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and only To facilitate the description of the invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation of the invention.

In the description of this creation, the meaning of several means one or more, and the meaning of multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including This number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of this creation, unless otherwise expressly qualified, words such as setting up, installing, connecting The terms should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in this creation in combination with the specific content of the technical solution.

Referring to Figures 1 to 4, a transformer housing includes: a housing body 100, a protruding portion 110 is provided on the opening end, the protruding portion 110 is provided with a lead wire slot 111, and an embedding groove 120 and an insertion hole 130 are provided at the opening end , the embedded groove 120 communicates with the jack 130; the pin 200 includes the plug-in section 210 and the outer connecting section 220, the plug-in section 210 is connected to the outer connecting section 220, the plug-in section 210 is inserted in the jack 130, and the outer connecting section 220 Embedded in the embedding groove 120; the lead wire clamping groove 111 is used to lead out the lead wire of the coil to the outer connecting section 220, and the outer connecting section 220 is used for welding the lead wire. The set pin 200 has an outer connecting section 220, and the outer connecting section 220 is used for welding the lead wire. The set lead wire clamping groove 111 is combined with the outer connecting section 220. The slot 111 can temporarily fix the lead wire of the coil and limit the extension direction of the lead wire. At this time, it becomes more convenient to weld the lead wire to the outer connecting section 220, which is convenient for batch welding and realizes mechanized welding of the lead wire; 130 can install the pin 200 more compactly, the inserting section 210 and the jack 130 have an interference fit, and the outer connection section 220 and the embedded groove 120 have an interference fit, so the connection is simple, and the pin 200 can also be connected to the shell body 100 injection molded together. It can be understood that the coil is placed in the inner cavity of the housing body 100, one of the two lead wires of the coil can be drawn out from the front lead wire slot 111, and the other can be drawn out from the rear lead wire slot 111, or can be arbitrarily drawn out. Combined, the lead wire of the coil is drawn out from the lead wire clamping groove 111. The protruding portion 110 is configured as a rectangle, and each side of the rectangle is called a subsection 112 .

In some embodiments, two opposite subsections 112 on the protrusion 110 are provided with lead card slots 111, one subsection 112 is provided with a plurality of lead card slots 111, and the embedded groove 120 and the insertion hole 130 are both connected with the lead card slots. The slots 111 are provided in one-to-one correspondence, multiple lead wires can be drawn out from multiple lead wire card slots 111, and the two opposite subsections 112 can distinguish the incoming wire end and the outgoing wire end, so as to facilitate the connection of other wires. It can be understood that one lead wire is led out from each lead wire slot 111 .

In some embodiments, a plurality of pins 200 are arranged in a straight line, and the outer connecting section 220 includes soldering part 221 and contact part 222, the welding part 221 and the contact part 222 are integrally formed, the welding part 221 is used to embed into the insertion groove 120, the contact part 222 is suspended, the contact part 222 is bent toward the middle of the housing body 100, and the contact part 222 is suspended It has elasticity and can elastically contact the printed circuit board (PCB), and the bending of the contact portion 222 can ensure that the distance between two adjacent contact portions 222 is consistent, and it is symmetrical about the middle of the housing body 100, that is, the plurality of pins 200 are relative to the housing body. 100 is arranged symmetrically along the symmetrical plane along the width direction. It can be understood that the width of the welding portion 221 is greater than that of the contact portion 222 , which is for the convenience of welding, the contact surface is large enough, the alignment accuracy requirements of welding can be relatively reduced, and it is suitable for mechanized welding.

In some embodiments, the cross-section of the protruding portion 110 is trapezoidal, and the protruding portion 110 set in a trapezoidal shape has high structural strength. Even if the lead wire slot 111 is provided, it can maintain a certain structural strength and avoid adjacent lead wire slots. The bump between 111 is broken. It can be understood that the cross section of the protruding portion 110 refers to a cross section perpendicular to the left and right directions, and the trapezoid refers to the trapezoidal outer contour.

In some embodiments, an arc-shaped transition surface 113 is provided at the junction of the lead wire slot 111 and the inner cavity of the housing body 100. The arc-shaped transition surface 113 combined with the lead wire slot 111 can prevent the lead wire from being cut off, and can also make the lead wire imitate shape bend. It can be understood that if there is no arc-shaped transition surface 113, the lead wires are easily cut by the edges at the junction.

In some embodiments, an arc-shaped guide surface 230 is provided between the insertion section 210 and the outer connecting section 220 , and the provided arc-shaped guiding surface 230 can guide the lead wires into the outer connecting section 220 to facilitate welding.

A network transformer includes a transformer shell. The set pin 200 has an outer connecting section 220, and the outer connecting section 220 is used for welding the lead wire. The set lead wire clamping groove 111 is combined with the outer connecting section 220. The slot 111 can temporarily fix the lead wire of the coil and limit the extension direction of the lead wire. At this time, it becomes more convenient to weld the lead wire to the outer connecting section 220, which is convenient for batch welding and realizes mechanized welding of the lead wire; 130 can install the pin 200 more compactly, the inserting section 210 and the jack 130 have an interference fit, and the outer connection section 220 and the embedded groove 120 have an interference fit, so the connection is simple, and the pin 200 can also be connected to the shell body 100 injection molded together. understandable What is more, the network transformer also includes a coil, the coil is accommodated in the housing body 100 , and the lead wires of the coil are drawn out from the lead wire slot 111 and welded to the corresponding outer connecting section 220 .

The embodiment of the creation has been described in detail above in conjunction with the accompanying drawings, but the creation is not limited to the above embodiment, and various changes can also be made without departing from the purpose of the creation within the scope of knowledge possessed by those of ordinary skill in the art. .

100: shell body

110: protruding part

111: lead card slot

112: Division

113: Arc transition surface

220: Outer link

221: welding part

222: contact part

Claims (7)

A transformer housing, including: The shell body has a protruding part on the opening end, the protruding part is provided with a lead wire slot, and the opening end is also provided with an embedding groove and a socket, and the embedding groove communicates with the socket; The pin includes a plug-in section and an outer connecting section, the plug-in section is connected to the outer connecting section, the plug-in section is inserted into the socket, and the outer connecting section is embedded in the embedding groove middle; The lead wire clamping groove is used for leading the lead wire of the coil to the outer connecting section, and the outer connecting section is used for welding the lead wire. The transformer casing according to claim 1, wherein: the two opposite subsections on the protruding part are provided with the lead wire slots, and one of the subsections is provided with a plurality of the lead wire slots, the Both the embedding slot and the jack are set in one-to-one correspondence with the lead slot. The transformer casing according to claim 1, wherein: a plurality of the pins are arranged in a straight line, the outer connecting section includes a welding part and a contact part, the welding part is integrally formed with the contact part, and the welding part For inserting into the embedding groove, the contact portion is suspended, and the contact portion is bent toward the middle of the housing body. The transformer casing as claimed in claim 1, wherein: the cross-section of the protrusion is trapezoidal. The transformer casing according to claim 1, wherein: an arc-shaped transition surface is provided at the junction of the lead wire slot and the inner cavity of the casing body. The transformer casing according to claim 1, wherein: an arc-shaped guide surface is provided between the plug-in section and the outer connection section. A network transformer, including the transformer housing described in any one of claims 1 to 6.

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