TW201536144A - Housing of electrical component and transformer including the housing - Google Patents

Abstract

The invention relates to a housing of an electrical component and a transformer including the housing. The housing comprises a bottom portion, a side portion and a plurality of terminals. The side portion is disposed on a periphery of the bottom portion. The side portion and the bottom portion corporately form a containing space. Two opposite side of the side portion respectively have a electrically connecting portion. The electrically connecting portion has a top surface opposite to the bottom portion. The terminals are fixed in the electrically connecting portion and the bottom portion. One end of the terminal extends from the top surface, and the other end thereof extends from the bottom portion. The terminals are arranged as a first row and a second row. The first row is positioned between the second row and the containing space. The terminals of the first row and the second row are not aligned with each other. Comparing to the prior art, the invention improves productive efficiency and yield rate, and decreases cost.

Description

Housing of electronic component and filter having the same

The present invention relates to a housing, and more particularly to a housing for an electronic component and a filter having the housing.

The existing filter includes a housing, a plurality of coils and a plurality of terminals, the housing is formed with an accommodating space, the terminal is inserted at a side of the housing, the coil is disposed in the accommodating space, and the lead drawn by the coil is soldered to the terminal . In the case where the number of terminals of the filter is large, the terminals are arranged in a row, but in the prior art, the terminals of the row and the row are aligned with each other, so the spacing between the terminals of the adjacent rows is equivalent. Narrow, such a structure will make the difficulty in immersion tin, and it is easy to cause a short circuit between the adjacent two leads. Since the filter is obliquely immersed in the tin during immersion in tin, the terminals on the outer row are immersed deep and immersed for a long time, which may cause wire breakage. In addition, since the rows of terminals are flush (the same height as the bottom) and the terminals of the row and row are aligned with each other, it is easy to get stuck when the lead is wound around the terminal by the winding tool, resulting in low productivity, and if The lead wire needs to be directly soldered to the terminal by spot welding, which is not only time-consuming and labor-intensive, but also easy to re-weld due to welding failure. In addition, the upper cover of the casing is fixed to the side of the casing by means of dispensing, which is inefficient in production. In summary, the housing structure of the existing filter leads to low efficiency in production, a decrease in yield, and an increase in cost.

In view of this, the object of the present invention is to provide a housing for an electronic component and a filter having the same, in order to reduce the difficulty of immersion tin, to conveniently control the immersion tin depth, and to avoid the problem of wire breakage due to uneven immersion tin. It is also possible to separate the leads from the tin, and it is not easy to be blocked by the adjacent terminals when the wire is wound around the terminals, and is fixed by the snap instead of the glue, thereby improving production efficiency and yield and reducing production. cost.

To achieve the above object, the present invention provides a housing for an electronic component. The housing includes a bottom portion, a side portion, and a plurality of terminals. The side portion is disposed around the periphery of the bottom portion, and the side portion and the bottom portion together form an accommodating space, and the opposite sides of the side portion each have an electrical connection portion, and the side of the electrical connection portion facing away from the bottom has a top surface. The terminals are embedded in the electrical connection portion and the bottom portion, one end of the terminal is pierced by the top surface, and the other end of the terminal is pierced from the bottom portion. The terminals are arranged with a first row and a second row, and the first row is located between the second row and the accommodating space, and the terminals of the first row and the terminals of the second row are offset from each other.

In an embodiment of the invention, the top surface is recessed with a plurality of first lead slots and a plurality of second lead slots, and the first lead slots are disposed corresponding to the terminals of the first row and penetrate the accommodating space, and the second lead slots correspond to The terminals of the second row are disposed and penetrate the accommodating space, and the first lead slots and the second lead slots are staggered with each other.

In an embodiment of the invention, the terminals are further arranged in a third row, the first row and the second row are located between the third row and the accommodating space, and the terminals of the third row and the terminals of the second row are misaligned with each other. The terminals of the third row and the terminals of the first row are offset from each other.

In an embodiment of the invention, the top surface is further recessed with a plurality of third lead slots, and the third lead slots are disposed corresponding to the terminals of the third row and penetrate the second lead slots.

In an embodiment of the invention, the third lead slot has a bent section, one end of the bent section is adjacent to the terminal of the third row, and the other end of the bent section penetrates the second lead slot.

In an embodiment of the invention, the top surface further includes a third step surface, the third step surface sinks in a direction toward the bottom, and the terminals of the third row pass through the third step surface.

In an embodiment of the invention, the top surface further includes a first step surface and a second step surface, the second step surface sinks in a direction toward the bottom, and the terminals of the first row are pierced by the first step surface, and the second The terminals of the row are pierced by the second step surface, wherein the spacing of the first step surface relative to the bottom portion is greater than the spacing of the second step surface relative to the bottom portion, and the spacing of the second step surface relative to the bottom portion is greater than the spacing of the third step surface relative to the bottom portion.

In an embodiment of the invention, one end of the first row of terminals passing through the first step surface has a first end, and the end of the second row of terminals passing through the second step surface has a second end, the third row One end of the terminal passing through the third step surface has a third end, and the distance between the first end and the bottom is greater than the distance between the second end and the bottom, and the distance between the second end and the bottom is greater than the distance of the third end from the bottom.

In an embodiment of the invention, the housing further includes a cover portion, and the opposite sides of the cover portion are provided with a hook, wherein the two sides of the side portion are provided with a card slot, and the cover portion covers the top surface and closes the accommodating space. The hook is engaged in the card slot.

In order to achieve the above object, the present invention further provides a filter comprising the foregoing housing and a plurality of toroidal coils, wherein the toroidal coils are disposed in the accommodating space, wherein the toroidal coils are extended with leads, and the leads are respectively connected The terminals.

The housing of the electronic component and the filter having the same can reduce the difficulty of immersion tin, conveniently control the immersion tin depth, and improve the uniformity during immersion tin to avoid uneven immersion tin and cause wire breakage. The problem is that the lead wires can be separated from the tin, and the wire is used to wrap the wires around the terminals without being easily blocked by the adjacent terminals, and the cover portion and the side portions are fixed by the snapping manner. Compared with the prior art, the present invention improves production efficiency and yield, and reduces production costs.

In order to make the objects, features, and advantages of the present invention more readily understood by those of ordinary skill in the art, the following description of the preferred embodiments and the accompanying drawings.

10‧‧‧ filter
11‧‧‧Shell
21, 21A‧‧‧ bottom
22, 22A‧‧‧ side
23, 23A‧‧‧ terminals
231, 231A‧‧‧ first row
232, 232A‧‧‧ second row
233, 233A‧‧‧ third row
234, 234A‧‧‧ first end
235, 235A‧‧‧ second end
236, 236A‧‧‧ third end
24‧‧‧ 盖部
25‧‧‧ accommodating space
26, 26A‧‧‧Electrical connection
27, 27A‧‧‧ top surface
271, 271A‧‧‧ first step surface
272, 272A‧‧‧ second step surface
273‧‧‧ third step surface
31‧‧‧First lead slot
32‧‧‧Second lead slot
33‧‧‧ Third lead slot
331‧‧‧Bend section
34‧‧‧ card hook
35‧‧‧ card slot

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a filter in accordance with a preferred embodiment of the present invention.
Figure 2 is a schematic illustration of the bottom, side, terminal and cover portions of a preferred embodiment of the present invention.
Fig. 3 is an enlarged view of a region A of Fig. 2.
Figure 4 is a top plan view of the bottom, side and terminals of a preferred embodiment of the present invention.
Figure 5 is a side elevational view of the bottom, side and terminals of a preferred embodiment of the present invention.
Figure 6 is a front elevational view of the bottom, side and terminal of a preferred embodiment of the present invention.
Figure 7 is a cross-sectional view of a cover portion of a preferred embodiment of the present invention.
Figure 8 is a side elevational view of the bottom, side and terminal of another preferred embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIGS. 1 and 2 show a filter 10 according to a preferred embodiment of the present invention. The transformer 10 includes a housing 11 and a plurality of loop coils (not shown). In other embodiments, the housing may also be employed by other types of electronic components, such as transformers, inductors, and the like. The housing 11 includes a bottom portion 21, side portions 22, a plurality of terminals 23, and a cover portion 24. The side portion 22 is disposed around the periphery of the bottom portion 21, and the side portion 22 and the bottom portion 21 together form an accommodating space 25, and the toroidal coil is disposed in the accommodating space 25. The opposite sides of the side portion 22 each have an electrical connection portion 26, and the side of the electrical connection portion 26 facing away from the bottom portion 21 has a top surface 27, and the terminals 23 are embedded in the electrical connection portion 26 and the bottom portion 21. Since the electrical connection portions 26 have two and are opposite to each other and are symmetrical, the terminals 23 are also divided into two groups and are symmetrically disposed on the two electrical connection portions 26 and the bottom portion 21. The lid portion 24 covers the top surface 27, surrounds the side portion 22, and closes the accommodating space 25 to form the filter 10 as shown in Fig. 1.

Please refer to FIG. 3 to FIG. 6 at the same time. FIG. 3 shows the A area of FIG. 2, and FIG. 4 to FIG. 6 show the top view and the side of the bottom portion 21, the side portion 22 and the terminal 23, respectively. View with front view. One end of the terminal 23 is pierced by the top surface 27, and the other end of the terminal 23 is pierced by the bottom portion 21. Specifically, the terminals 23 on any one of the electrical connection portions 26 are arranged with a first row 231, a second row 232, and a third row 233 (refer to the rows of terminals 23 in a dashed line in FIG. 4). The first row 231 is located between the second row 232 and the accommodating space 25, and the third row 233 is farthest from the accommodating space 25 with respect to the first row 231 and the second row 232, that is, the first row 231 and the second row. 232 is located between the third row 233 and the accommodating space 25. The terminals 23 of the first row 231 and the terminals 23 of the second row 232 are offset from each other, the terminals 23 of the third row 233 and the terminals 23 of the second row 232 are offset from each other, and the terminals 23 of the third row 233 are further aligned with the first row. The terminals 23 of 231 are misaligned with each other. In other words, as shown in FIG. 4, the first row 231, the second row 232, and any one of the terminals 23 of the third row 233 do not overlap in the vertical direction, and the position of the terminal 23 of the third row 233 in the vertical direction is The adjacent terminals 23 of the first row 231 and the second row 232 are located between the positions in the vertical direction.

Preferably, the top surface 27 is further recessed with a plurality of first lead slots 31, a plurality of second lead slots 32 and a plurality of third lead slots 33; in other embodiments, the top surface may not need to be recessed. The first lead slot 31 is disposed corresponding to the terminal 23 of the first row 231 and extends through the accommodating space 25 . The second lead slot 32 is disposed corresponding to the terminal 23 of the second row 232 and passes through the accommodating space 25 . The third lead slot 33 corresponds to The terminals 23 of the third row 233 are disposed and penetrate the second lead slots 32. In other embodiments, the third lead slots may also be disposed corresponding to the terminals of the third row and directly penetrate the accommodating space. As shown in FIG. 4, the third lead groove 33 has a U-shaped bent portion 331. One end of the bent portion 331 is adjacent to the terminal 23 of the third row 233, and the other end of the bent portion 331 penetrates the second lead groove 32. As shown in FIG. 4, the first lead groove 31 and the second lead groove 32 are staggered in the horizontal direction, and the third lead groove 33 is located between the adjacent two third lead grooves 33. It should be understood that each lead slot will correspond to one terminal 23, since the number of terminals 23 of the first row 231 of the present embodiment is equal to the number of terminals 23 of the second row 232, but the terminal 23 of the third row 233 The number is smaller than the number of the terminals 23 of the second row 232, and thus the number of the third lead slots 33 is also less than the number of the second lead slots 32, as shown in Fig. 4, so that some of the second lead slots 32 are independent. It does not communicate with the third lead groove 33. In other embodiments, if the number of terminals in the third row is equal to the number of terminals in the second row, each of the second lead slots is connected to a third lead slot; or, the plurality of terminals may be arranged only The first row and the second row, so the top surface only needs to recess the first lead slot and the second lead slot, wherein the terminals of the first row and the second row are misaligned with each other, and the first lead slot and the second lead The slots are staggered with each other.

Preferably, the top surface 27 further includes a first step surface 271, a second step surface 272 and a third step surface 273, that is, the top surface 27 forms a second-order stepped structure. With reference to the first step surface 271, the second step surface 272 sinks in the direction of the bottom portion 21 with respect to the first step surface 271, and the third step surface 273 is in the direction of the bottom portion 21 with respect to the second step surface 272. Sinking, in other words, the spacing of the first step surface 271 relative to the bottom portion 21 is greater than the spacing of the second step surface 272 relative to the bottom portion 21, and the spacing of the second step surface 272 relative to the bottom portion 21 is greater than the spacing of the third step surface 273 relative to the bottom portion 21. spacing. The terminal 23 of the first row 231 is pierced by the first step surface 271, and the end of the terminal 23 of the first row 231 passing through the first step surface 271 has a first end 234; the terminal 23 of the second row 232 is formed by the second step surface 272 is pierced, and the end of the second row 232 of the terminal 23 passing through the second step surface 272 has a second end 235; the terminal 23 of the third row 233 is pierced by the third stepped surface 273, and the terminal 23 of the third row 233 is worn. One end of the third step surface 273 has a third end 236. The spacing of the first end 234 relative to the bottom 21 is greater than the spacing of the second end 235 relative to the bottom 21, and the spacing of the second end 235 relative to the bottom 21 is greater than the spacing of the third end 236 relative to the bottom 21. In the case of immersion tin, the electrical connection portion 26 is obliquely immersed in the tin, but the first end 234, the second end 235 and the third end 236 correspond to the first step surface 271, the second step surface 272 and the third step surface. The step structure of 273 gradually reduces the height, so that it is advantageous to control the immersion tin depth, so that the first end 234, the second end 235 and the third end 236 are immersed in the tin to the same depth and time, so that the terminal 23 of the outer row can be prevented from being immersed in tin. Too deep and too long may lead to disconnection, improve efficiency and yield.

Referring to Figures 2 and 7, at the same time, Figure 7 is a cross-sectional view of the cover portion 24 in accordance with a preferred embodiment of the present invention. The inner side of the cover portion 24 is provided with a hook 34 on opposite sides, and the outer side of the opposite sides of the non-electrical connection portion of the side portion 22 is provided with a card slot 35. When the cover portion 24 is assembled to the side portion 22, the hook 34 is engaged with The card slot 35, thereby increasing the strength of the connection between the cover portion 24 and the side portions 22. Moreover, the hook 34 and the card slot 35 of the present invention can replace the conventional adhesive fixing method, thereby improving production efficiency and reducing cost.

Lead wires (not shown) extending from the toroidal coil are respectively connected to the terminals 23, and each of the leads is connected to one terminal 23. The leads connected to the terminals 23 of the first row 231 pass through the first lead slots 31 and then wrap around the terminals 23 of the first row 231. The leads connected to the terminals 23 of the second row 232 pass through the second lead slots 32 and then wrap around the terminals 23 of the second row 232. The leads connected to the terminals 23 of the third row 233 are first passed through the front section of the second lead slot 32, then through the junction of the third lead slot 33 and the second lead slot 32, through the third lead slot 33, and then wrapped around The terminal 23 of the third row 233 is on. Since the end portion of the lead wire connected to the terminal 23 is separated by the first lead groove 31, the second lead groove 32 and the third lead groove 33, the tin portion can be prevented from being connected to the last portion of the adjacent two leads. Causes a short circuit, which improves efficiency and reliability. Moreover, since the terminals 23 of the first row 231, the second row 232 and the third row 233 are misaligned with each other and the top surface 27 forms a stepped structure, in other words, the spacing between the terminals 23 of the adjacent two rows is increased, in addition to contributing In addition to the connection of tin, it is not easy to be blocked by another row of terminals 23 when using the winding tool, which helps to wrap the lead wire to the terminal 23 and then solder it, thereby improving efficiency, reliability, and reduction. cost.

Referring again to FIG. 8, FIG. 8 is a side view of the bottom portion 21A, the side portion 22A and the terminal 23A according to another preferred embodiment of the present invention. The side portion 22A of Fig. 8 differs from the terminal 23A in the side portion 22 of Figs. 1 to 6 in the difference from the terminal 23 in that the top surface 27A of the electrical connection portion 26A of the side portion 22A of Fig. 8 is formed only by one. The stepped structure of the step, the top surface 27A includes a first step surface 271A and a second step surface 272A. The second step surface 272A is sunk compared to the first step surface 271A, and the terminals 23A of the first row 231A and the second row 232A are pierced by the first step surface 271A, and the first end of the terminal 23A of the first row 231A 234A is the same as the second end 235A of the terminal 23A of the second row 232A with respect to the bottom 21A, and the third end 236A of the terminal 23A of the third row 233A is spaced less than the second end 235A with respect to the bottom 21A. Pitch. With such a structure, it is also possible to avoid the fact that the terminal 23A of the third row 233A located on the outer side is broken due to the immersion tin too long and too long, and the cost can be reduced.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

21‧‧‧ bottom

22‧‧‧ side

23‧‧‧ Terminal

231‧‧‧ first row

232‧‧‧second row

233‧‧‧ third row

25‧‧‧ accommodating space

26‧‧‧Electrical connection

27‧‧‧ top surface

271‧‧‧ first step surface

272‧‧‧second step surface

273‧‧‧ third step surface

31‧‧‧First lead slot

32‧‧‧Second lead slot

33‧‧‧ Third lead slot

331‧‧‧Bend section

Claims (10)

A housing for an electronic component, comprising:
a bottom
a side portion is disposed around the periphery of the bottom portion, and the side portion and the bottom portion form an accommodating space, and the opposite sides of the side portion each have an electrical connection portion, and the side of the electrical connection portion facing away from the bottom portion has a top surface; the plurality of terminals are embedded in the electrical connection portion and the bottom portion, one end of the terminal is pierced by the top surface, and the other end of the terminal is pierced by the bottom portion, and the terminals are arranged with a first A row and a second row are located between the second row and the accommodating space, and the terminals of the first row and the terminals of the second row are offset from each other. The housing of claim 1, wherein the top surface is recessed with a plurality of first lead slots and a plurality of second lead slots, the first lead slots being disposed corresponding to the terminals of the first row and extending through the terminal The second lead groove is disposed corresponding to the terminal of the second row and penetrates the accommodating space, and the first lead grooves and the second lead grooves are staggered with each other. The casing of claim 2, wherein the terminals are further arranged with a third row, the first row and the second row being located between the third row and the accommodating space, the third The terminals of the row and the terminals of the second row are offset from each other, and the terminals of the third row and the terminals of the first row are offset from each other. The casing of claim 3, wherein the top surface is further recessed with a plurality of third lead slots, and the third lead slots are disposed corresponding to the terminals of the third row and penetrate the second lead slots. The casing of claim 4, wherein the third lead groove has a bent portion, one end of the bent portion is adjacent to the terminal of the third row, and the other end of the bent portion penetrates the first Two lead slots. The casing of claim 4, wherein the top surface further comprises a third step surface, the third step surface sinking in a direction of the bottom portion, the third row of terminals being the third step Wear it out. The casing of claim 6, wherein the top surface further comprises a first step surface and a second step surface, the second step surface sinking in a direction of the bottom portion, the first row of The terminal passes through the first step surface, and the terminal of the second row passes through the second step surface, wherein a spacing of the first step surface relative to the bottom portion is greater than a spacing of the second step surface relative to the bottom portion, The spacing of the second step surface relative to the bottom portion is greater than the spacing of the third step surface relative to the bottom portion. The casing of claim 7, wherein one end of the first row of terminals passing through the first step surface has a first end, and the terminal of the second row passes through the second step surface One end has a second end, and one end of the third row of terminals passing through the third step surface has a third end, and a spacing of the first end relative to the bottom portion is greater than a spacing of the second end relative to the bottom portion, The spacing of the second end relative to the bottom is greater than the spacing of the third end relative to the bottom. The casing of claim 1, further comprising a cover portion, wherein the opposite sides of the cover portion are provided with a hook, wherein the opposite sides of the side portion are provided with a card slot, and the cover portion covers the top The accommodating space is closed and closed, and the hook is engaged with the card slot. A filter that includes:
The housing of any one of claims 1 to 9; and a plurality of toroidal coils disposed in the accommodating space, wherein the toroidal coil extends with a lead wire, and the leads are respectively connected to the terminals.