connector

Abstract

An electronic device includes an internal component mounted on a mounting substrate within a predetermined region and a bridging component mounted on the mounting substrate to cross a boundary line between the interior and exterior of the predetermined region. A shielding shell is mounted on the mounting substrate such that a sidewall portion is located on the boundary line. The sidewall portion has a half-wall portion. The half-wall portion does not reach the lower end of the shielding shell, and an opening is formed below the half-wall portion to connect the interior and exterior of the shielding shell. The bridging component is partially located in the opening directly below the half-wall portion. The lower end of the half-wall portion is located below the upper end of the tallest of the internal components.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to an electronic device equipped with a shielding shell. Background Technology

[0002] JP2002-232179A (Patent Document 1) discloses an electronic device in which multiple electronic components mounted on a mounting substrate are covered by caps or shielding shells.

[0003] like Figure 8 As shown, the electronic device 80 disclosed in Patent Document 1 includes a mounting substrate 801, a plurality of electronic components 803 mounted on the mounting substrate 801, and a cap or shielding shell attached to the mounting substrate 801 to cover the electronic components 803.

[0004] The cap or shielding shell 805 of the electronic device 80 disclosed in Patent Document 1 has the following problem: it easily increases the size of the electronic device 80. Summary of the Invention

[0005] One object of the present invention is to provide a shielding shell that facilitates the miniaturization of electronic devices, and to provide an electronic device using the shielding shell.

[0006] One aspect of the present invention provides an electronic device comprising a mounting substrate, a plurality of basic components, and a shielding shell. The mounting substrate has a predetermined region. Each basic component is an electrical or electronic component. Each basic component includes at least one internal component and at least one bridging component. At least one internal component is mounted on the mounting substrate to be located within the predetermined region. At least one bridging component is mounted on the mounting substrate to cross a boundary line between the interior and exterior of the predetermined region. The shielding shell has a top portion and sidewall portions extending downward from the top portion. The shielding shell is mounted on the mounting substrate such that, when viewed from above, the sidewall portions are located on the boundary line crossing the interior and exterior of the predetermined region. The sidewall portions have a full wall portion reaching the lower end of the shielding shell and a half wall portion extending downward from the top portion by a predetermined dimension. The half wall portion does not reach the lower end of the shielding shell, thereby forming an opening below the half wall portion to allow communication between the interior and exterior of the shielding shell. At least one bridging component is partially located in the opening directly below the half wall portion. The lower end of the half wall portion is located below the upper end of the highest of at least one of the internal components in the vertical direction.

[0007] Another aspect of the present invention provides a shielding shell, which, when mounted on a mounting substrate having a predetermined area, covers a basic device disposed on the predetermined area of ​​the mounting substrate. The shielding shell has a top portion and sidewall portions extending downward from the top portion. In use, the shielding shell is mounted on the mounting substrate such that, when viewed from above, the sidewall portions lie on the boundary line between the interior and exterior of the predetermined area. The sidewall portions have a full wall portion reaching the lower end of the shielding shell and a half wall portion extending downward from the top portion by a predetermined dimension. The half wall portion does not reach the lower end of the shielding shell, thereby forming an opening below the half wall portion to allow communication between the interior and exterior of the shielding shell. The opening allows the basic device to be mounted on the mounting substrate such that the basic device crosses the boundary line between the interior and exterior of the predetermined area of ​​the mounting substrate.

[0008] Effects of the invention:

[0009] The shielding shell according to the foregoing aspect of the present invention allows basic components to be mounted on a mounting substrate through an opening formed below the half-wall portion, such that the basic components cross the boundary line between the interior and exterior of a predetermined region of the mounting substrate. With this structure, basic components highly correlated with another basic component that may be a noise source can be arranged near that other basic component, and the wiring length between them can be shortened. Furthermore, since it is not necessary to completely cover the basic components with the shielding shell, the shielding shell can be miniaturized. Thus, the shielding shell according to the foregoing aspect of the present invention allows for shorter wiring lengths on the mounting substrate and miniaturization of itself, thereby enabling miniaturization of the electronic device. Moreover, miniaturization of the electronic device can reduce costs, including the material costs of the electronic device and the installation and handling costs of the electronic device. Furthermore, shortening the wiring length on the mounting substrate can improve the efficiency of the electronic device and reduce electromagnetic noise radiation.

[0010] A better understanding of the object and structure of the invention can be achieved by studying the following description of preferred embodiments and referring to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is a perspective view of an electronic device according to an embodiment of the present invention.

[0012] Figure 2 yes Figure 1 A perspective view of the shielding housing included in the electronic device shown.

[0013] Figure 3 yes Figure 1 A plan view of the electronic device shown.

[0014] Figure 4 yes Figure 3The diagram shows a plan view of the mounting substrate and basic components included in the electronic device. The dotted lines indicate the boundary lines of predetermined areas on the mounting substrate.

[0015] Figure 5 yes Figure 3 The diagram shows a plan view of the electronic device. Dashed lines represent the inner surface of the shielding shell, the basic components covered by the shielding shell, and the grounding pattern.

[0016] Figure 6 yes Figure 5 The electronic device shown is a cross-sectional view along line AA.

[0017] Figure 7 yes Figure 5 The electronic device shown is a cross-sectional view along line BB.

[0018] Figure 8 It is a cross-sectional view of the electronic device disclosed in Patent Document 1.

[0019] While the invention is susceptible to various modifications and alternatives, specific embodiments thereof are illustrated by way of example in the accompanying drawings and will be described in detail herein. However, it should be understood that the drawings and their detailed description are not intended to limit the invention to the specific forms disclosed, but rather are intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. Detailed Implementation

[0020] refer to Figure 1 An electronic device 10 according to an embodiment of the present invention includes a mounting substrate 20, a plurality of basic components 30, and a shielding shell 40. The basic components 30 and the shielding shell 40 are mounted on the upper surface of the mounting substrate 20. In this embodiment, the vertical direction is the Z direction. The +Z direction points upward, while the -Z direction points downward.

[0021] like Figure 4 As shown, the mounting substrate 20 has a predetermined region 22 on its upper surface. In this embodiment, the predetermined region 22 is the area where the basic device 30 to be mounted, which is to be covered by the shielding shell 40, is mounted. Furthermore, in this embodiment, a plurality of grounding patterns 24 are formed on the boundary line 221 near the predetermined region 22. In this embodiment, the predetermined region 22 is rectangular in shape. However, in this invention, the shape of the predetermined region 22 is not particularly limited, and it can be other shapes, such as circular, polygonal, or racetrack-shaped.

[0022] from Figure 3 and Figure 4It is understood that the basic device 30 includes at least one internal component 32 mounted on the mounting substrate 20 within a predetermined region 22. In this embodiment, the number of at least one internal component 32 is three. Each internal component 32 is a basic device 30 that may be a noise source, or a basic device 30 that needs to be arranged near a basic device 30 that may be a noise source. Furthermore, in this embodiment, each basic device 30 is an electronic component or an electrical component. An electrical component may be an inductor.

[0023] from Figure 3 and Figure 4 It is understood that the basic device 30 includes at least one bridging member 34, which is mounted on the mounting substrate 20 to span the boundary line 221 between the interior and exterior of the predetermined region 22. In this embodiment, the number of at least one bridging member 34 is two. Each bridging member 34 is a basic device 30 that needs to be arranged near the basic device 30, which may be a noise source.

[0024] like Figure 3 or Figure 4 As shown, in this invention, the basic device 30 may include at least one external component 36, which is mounted on the mounting substrate 20 and located outside the predetermined region 22. In this embodiment, the basic device 30 includes two external components 36.

[0025] refer to Figure 2 The shielding shell 40 has a top portion 42 and a side wall portion 44 extending downward from the top portion 42. The shielding shell 40 is a component that is installed in a predetermined area 22 (see...). Figure 4 Mounting substrate 20 (see) Figure 4 On, and covering the basic device 30 or internal component 32 (see) disposed on the predetermined area 22. Figure 4 For example, the shielding shell 40 can be formed by bending a metal plate. Alternatively, the shielding shell 40 can be formed by stretching a metal plate.

[0026] like Figure 2 As shown, in this embodiment, the sidewall portion 44 of the shielding shell 40 has a generally low-profile polygonal tubular shape. Specifically, the sidewall portion 44 of the shielding shell 40 has a rectangular tubular shape. In this embodiment, when viewed from above, the top portion 42 has a rectangular shape. However, the invention is not limited to this. The shape of the top portion 42 can be other shapes, such as circular, polygonal, or racetrack-shaped, as long as it corresponds to the shape of the predetermined region 22.

[0027] from Figure 2 and Figure 5It is understood that the sidewall portion 44 has a plurality of side surfaces 46 (461-464). In this embodiment, the number of side surfaces 46 is four. Furthermore, in this embodiment, the side surfaces 46 are separated from each other. However, the invention is not limited thereto. In the present invention, the number of side surfaces 46 can be determined based on the shape of the top portion 42. For example, the sidewall portion 44 may have a single side surface 46 formed as a cylinder. Alternatively, the side surfaces 46 may be adjacent to each other to form a polygonal tube.

[0028] from Figure 6 and Figure 7 It is understood that side 461 extends downward from top portion 42 by a predetermined dimension and forms a half-wall portion 441 that does not reach the lower end of shielding shell 40. The predetermined dimension will be described later. Thus, side wall portion 44 has half-wall portion 441, and side 461 is a specific side 461 having half-wall portion 441. However, the invention is not limited thereto. Half-wall portion 441 may be provided as part of side 461. In any case, side 46 includes a specific side 461 having half-wall portion 441.

[0029] from Figure 2 , Figure 6 and Figure 7 It is understood that each of sides 462, 463, and 464 has a portion, namely a full-wall portion 443, which extends downward from the top portion 42 and reaches the lower end of the shielding shell 40. Therefore, sidewall portion 44 has a full-wall portion 443, and each of sides 462, 463, and 464 is a conventional side 462, 463, or 464 without a half-wall portion 441. However, the invention is not limited thereto. Each of sides 462, 463, and 464 may integrally form a full-wall portion 443. In any case, side 46 includes conventional sides 462, 463, and 464 other than the specific side 461.

[0030] from Figure 6 and Figure 7 It is understood that an opening 48 is formed below a specific side 461 to allow communication between the interior and exterior of the shielding shell 40. When a half-wall portion 441 is formed in a portion of the side 461, the opening 48 is formed directly below the half-wall portion 441. In any case, the opening 48 is formed in the specific side 461.

[0031] from Figure 4 and Figure 5It is understood that when the shielding shell 40 is mounted onto the mounting substrate 20, the sidewall portion 44 is located on the boundary line 221 between the interior and exterior of the predetermined region 22 when viewed from above. The bridging member 34 is mounted on the mounting substrate 20 such that it is partially located on the boundary line 221 between the interior and exterior of the predetermined region 22. When the shielding shell 40 is mounted on the mounting substrate 20, the bridging member 34 is also mounted on the mounting substrate 20 to pass through the opening 48 directly below the half-wall portion 441 and extend from the interior to the exterior of the opening 48. In other words, the opening 48 allows the basic device 30 to be mounted on the mounting substrate 20 and to cross the boundary line 221 between the interior and exterior of the predetermined region 22 of the mounting substrate 20. Although in this embodiment the bridging member 34 protrudes from both sides of the opening 48 in the thickness direction of the half-wall portion 441, the invention is not limited thereto. In this invention, the bridging member 34 may protrude from only one side of the opening 48 in the thickness direction of the half-wall 441. In any case, the bridging member 34 should be partially located in the opening 48 directly below the half-wall 441.

[0032] from Figure 1 and Figure 2 It is understood that the shielding shell 40 has a connection portion 445 that connects to the grounding pattern 24 on the mounting substrate 20. Specifically, each ordinary side 462, 463, and 464 has a pair of connection portions 445. Each pair of connection portions 445 corresponds to the full-wall portion 443. In the horizontal direction perpendicular to the up-down direction, each pair of connection portions 445 is located at each end of the side 462, 463, and 464. In this embodiment, the horizontal direction is either the X direction or the Y direction, and is the longitudinal direction of each of the side 462, 463, and 464. Specifically, for side 462 and 464, the horizontal direction is the X direction, and for side 463, the horizontal direction is the Y direction.

[0033] from Figure 1 and Figure 2 It is understood that in this embodiment, the total length of the connecting portion 445 in the horizontal direction is shorter than the total length of the ordinary sides 462, 463, and 464 in the horizontal direction. This is to minimize the stress caused by temperature changes in the solder (not shown) connecting the connecting portion 445 to the grounding pattern 24. A shorter total length of the connecting portion 445 is preferred, provided that the desired connection strength is achieved and the electromagnetic noise shielding effect of the shielding shell 40 is not compromised.

[0034] from Figure 6 and Figure 7It is understood that the lower end of a specific side 461 or half-wall 441 is located below the upper end of the tallest of the internal components 32 in the vertical direction. The lower end of the half-wall 441 is located above the tallest of the bridging components 34 in the vertical direction. The predetermined size of the half-wall 441 is determined based on the height of the internal components 32 and the height of the bridging components 34. With this structure, the shielding shell 40 can achieve the same electromagnetic noise shielding effect as if it completely covers the internal components 32. However, when the internal components 32 contain devices that are taller than the internal components 32 that may be noise sources, it is preferable that the lower end of the specific side 461 or half-wall 441 is located below the upper end of the internal components 32 that may be noise sources.

[0035] As described above, in the electronic device 10 of this embodiment, the shielding shell 40 has an opening 48. Therefore, the basic components 30 can be mounted on the mounting substrate 20, spanning the boundary line 221 between the interior and exterior of a predetermined region 22 of the mounting substrate 20. In other words, the electronic device 10 of this embodiment offers increased design freedom regarding the mounting substrate 20. With this structure, the distance between the basic components 30 and the wiring length on the mounting substrate 20 can be shortened, thereby miniaturizing not only the shielding shell 40 but also the electronic device 10. Furthermore, the miniaturization of the electronic device 10 reduces costs, including material costs and installation and handling costs. Moreover, by shortening the wiring length on the mounting substrate 20, the efficiency of the electronic device 10 can be improved and the electromagnetic noise radiated from the electronic device 10 can be reduced.

[0036] Although the present invention has been specifically described above with reference to specific embodiments, the present invention is not limited thereto, and various modifications and alternative forms can be made without departing from the spirit of the invention. For example, although the number of half-wall portions 441 is one in the foregoing embodiments, two or more half-wall portions 441 may be provided. The half-wall portion 441 may be provided on one of the side surfaces 46, or may be provided on each of the side surfaces 46. Nevertheless, the structure of forming a single half-wall portion 441 in one of the side surfaces 46 as in the foregoing embodiments is simple, and the shielding shell 40 is easy to manufacture.

[0037] Although what is considered to be a preferred embodiment of the invention has been described, those skilled in the art will recognize that other and further modifications can be made thereto without departing from the spirit of the invention, and it is intended to claim protection for all such embodiments falling within the true scope of the invention.

Claims

1. An electronic device comprising a mounting substrate, a plurality of basic components, and a shielding shell, characterized in that, The mounting base plate has a predetermined area; Each of the aforementioned basic components is an electrical or electronic component; The basic device includes at least one internal component and at least one bridging component; The at least one internal component is mounted on the mounting base plate to be located within the predetermined area; The at least one bridging component is mounted on the mounting base to span the boundary line between the interior and exterior of the predetermined region; The shielding shell has a top portion and a side wall portion extending downward from the top portion; The shielding shell is mounted on the mounting base such that when the shielding shell is viewed from above, the sidewall portion is located on the boundary line between the interior of the predetermined area and the exterior of the predetermined area; The sidewall portion has a full wall portion reaching the lower end of the shielding shell and a half wall portion extending downward from the top portion by a predetermined dimension; The half-wall portion does not reach the lower end of the shielding shell, thereby forming an opening at the bottom of the half-wall portion to allow communication between the interior and exterior of the shielding shell. The at least one bridging member is partially located in the opening directly below the half-wall portion; and The lower end of the half-wall is located below the upper end of the highest of the at least one internal component in the vertical direction.

2. The electronic device according to claim 1, characterized in that, The sidewall portion of the shielding shell has a polygonal tubular shape and includes multiple sides; The side includes a specific side having the half-wall portion and a plurality of ordinary sides other than the specific side; The opening is provided on the specific side; Each of the aforementioned ordinary sides has a connection portion that connects to the mounting base plate; and In at least one of the common sides, the total length of the connecting portion in the horizontal direction is shorter than the length of the common side in the horizontal direction.

3. A shielding shell, when mounted on a mounting substrate having a predetermined area, for covering basic components disposed on the predetermined area of ​​the mounting substrate, characterized in that, The shielding shell has a top portion and a side wall portion extending downward from the top portion; In use, the shielding shell is mounted on the mounting base such that, when viewed from above, the sidewall portion is located on the boundary line between the interior of the predetermined area and the exterior of the predetermined area; The sidewall portion has a full wall portion reaching the lower end of the shielding shell and a half wall portion extending downward from the top portion by a predetermined dimension; The half-wall portion does not reach the lower end of the shielding shell, thereby forming an opening at the bottom of the half-wall portion to allow communication between the interior and exterior of the shielding shell; and The opening allows the basic device to be mounted on the mounting substrate such that the basic device crosses the boundary line between the interior of a predetermined region of the mounting substrate and the exterior of the predetermined region of the mounting substrate.

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