Electromagnetic shielding connector, electromagnetic shielding device and electronic equipment

Abstract

The invention discloses an electromagnetic shielding connector, an electromagnetic shielding device and an electronic device. The electromagnetic shielding connector includes an upper baffle, a lower baffle and a connecting piece. The connecting piece includes an upper end and a lower end. The upper end of the connecting piece is connected to the upper baffle, and the lower end of the connecting piece is connected to the lower baffle. In addition, the connecting piece has an open state and a shielding state. When in the open state, the upper baffle and the lower baffle are separated and form a movable opening. When in the shielding state, the upper baffle and the lower baffle are interlocked and combined together. The upper and lower surfaces of the device can be welded and fixed. The side is surrounded by a supporting structure and is not easily deformed. After compression, a cubic structure is formed. The shielding effect is better for the same number of connectors. The top and the top adopt a square surface, and the welding area is larger. The shielding characteristics of the mechanism components themselves are fully utilized. The shielding effect is achieved by cooperating with the shrapnel solution of the PCB. It is more flexible, more stable and has a lower cost.

Description

Technical Field

[0001] The invention relates to an electromagnetic shielding connector for an electromagnetic shielding device. Background Art

[0002] In the prior art, the electromagnetic noise shielding technology of laptop computers usually adopts the method of connecting the shielding cover CAN and the PCB through solder pins. The disadvantages of this connection method include easy detachment, high cost, inability to be reused, high requirements on the space and structure of the product, and heavy product. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a new electromagnetic shielding connector for a PCB circuit board, which can achieve an electromagnetic shielding effect together with a metal back cover of an electronic device.

[0004] In order to achieve the above-mentioned purpose, the present invention provides an electromagnetic shielding connector, including an upper baffle wall, a lower baffle wall, and a connecting plate, wherein the connecting plate includes an upper end and a lower end, the upper end of the connecting plate is connected to the upper baffle wall, and the lower end of the connecting plate is connected to the lower baffle wall; and has an open state and a shielding state, when in the open state, the upper baffle wall and the lower baffle wall are separated and form a movable opening, and when in the shielding state, the upper baffle wall and the lower baffle wall are interlocked and combined together.

[0005] Preferably, the connecting piece comprises an elastic connecting piece.

[0006] Preferably, the connecting piece is Z-shaped, and when in the open state, the upper retaining wall and the lower retaining wall are staggered with each other in the horizontal direction and the vertical direction.

[0007] Preferably, the upper retaining wall includes a top cover connected to the connecting piece and upper side plates extending downward from the top cover along both sides, and the lower retaining wall includes a bottom cover connected to the connecting piece and lower side plates extending upward from the bottom cover along both sides. When in the shielding state, the upper retaining wall and the lower retaining wall are interlocked and combined together, and the upper side plates and the lower side plates support each other.

[0008] Preferably, the ends of the upper side plate and the lower side plate are respectively provided with transverse flanges, and when in the shielding state, the flanges of the upper side plate and the lower side plate overlap each other.

[0009] Preferably, the upper baffle wall includes a first outer baffle wall connected to the outer side of the top cover, the lower baffle wall includes a second outer baffle wall connected to the outer side of the bottom cover, the upper end of the connecting piece is connected to the inner side of the top cover, and the lower end of the connecting piece is connected to the inner side of the bottom cover. When in the shielding state, the upper baffle wall and the lower baffle wall are interlocked and combined together, and the upper side plate and the lower side plate support each other.

[0010] Preferably, the first outer baffle wall and the second outer baffle wall extend longitudinally, and when in the shielding state, the height of the first outer baffle wall and the second outer baffle wall is equal to the sum of the heights of the upper side plate and the lower side plate.

[0011] Preferably, the ends of the first side retaining wall and the second side retaining wall are respectively provided with transverse supporting feet.

[0012] According to another aspect of the present invention, an electromagnetic shielding device is provided, comprising a plurality of electromagnetic shielding connectors as described above and a metal shielding cover connected to the top of the electromagnetic shielding connectors, the electromagnetic shielding connectors comprising an upper baffle wall, a lower baffle wall, and a connecting plate, the connecting plate comprising an upper end and a lower end, the upper end of the connecting plate being connected to the upper baffle wall, and the lower end of the connecting plate being connected to the lower baffle wall; and having an open state and a shielding state, when in the open state, the upper baffle wall and the lower baffle wall are separated and form a movable opening, and when in the shielding state, the upper baffle wall and the lower baffle wall are interlocked and combined together.

[0013] Preferably, the noise wavelength of the electromagnetic noise source device is proportional to the spacing between adjacent shielding connectors.

[0014] According to another aspect of the present invention, an electronic device is provided, comprising a PCB board, an electromagnetic noise source device located on the PCB board, a plurality of electromagnetic shielding connectors as described above and a metal shielding cover connected to the top of the electromagnetic shielding connector are arranged around the electromagnetic noise source device, the shielding connector is arranged around the electromagnetic noise source device, the metal shielding cover covers the top of the electromagnetic noise source device, the electromagnetic shielding connector comprises an upper baffle wall, a lower baffle wall, and a connecting piece, the connecting piece comprises an upper end and a lower end, the upper end of the connecting piece is connected to the upper baffle wall, and the lower end of the connecting piece is connected to the lower baffle wall; and has an open state and a shielding state, when in the open state, the upper baffle wall and the lower baffle wall are separated and form a movable opening, when in the shielding state, the upper baffle wall and the lower baffle wall are interlocked and combined together.

[0015] Preferably, the interval between adjacent shielding connectors is d1<λ / 4, wherein λ is the noise wavelength of the electromagnetic noise source device.

[0016] Preferably, the metal shielding cover 7 comprises a part or the whole of a cover of the electronic device.

[0017] Due to the adoption of the above technical means, the upper and lower sides of the device can be welded and fixed, the side is surrounded by the supporting structure and is not easy to deform, and after compression, it forms a cubic structure, which has a better shielding effect for the same number of connectors, and the top and the top adopt a square surface, and the welding area is larger. The present invention can effectively solve the traditional shortcomings of easy falling off, non-reusable, high cost, and high requirements for structure and space, and fully utilizes the shielding characteristics of the mechanism components themselves, and cooperates with the PCB spring solution to achieve the shielding effect, which is more flexible, more stable, and has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 A side view of the electromagnetic shielding connector according to the present invention in an open state;

[0019] Attached Figure 2 A front view of the electromagnetic shielding connector according to the present invention in an open state;

[0020] Attached Figure 3 A side view of the electromagnetic shielding connector according to the present invention in a shielding state;

[0021] Attached Figure 4 A front view of the electromagnetic shielding connector according to the present invention in a shielding state;

[0022] Attached Figure 5 is a schematic diagram of an electromagnetic shielding device according to the present invention;

[0023] Attached Figure 6 For attachment Figure 5 Side view of. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See attached Figure 1 To Attachment Figure 4 As shown, attached Figure 1 is a side view of the electromagnetic shielding connector according to the present invention in an open state, Figure 2 is a front view of the electromagnetic shielding connector in an open state according to the present invention, Figure 3 is a side view of the electromagnetic shielding connector according to the present invention in the shielding state, Figure 4 The electromagnetic shielding connector in this embodiment includes an upper retaining wall 32 , a lower retaining wall 31 , and a connecting sheet 1 .

[0026] The connecting piece 1 is a Z-shaped elastic connecting piece. The upper end of the connecting piece 1 is welded to the upper retaining wall 32 , and the lower end of the connecting piece 1 is welded to the lower retaining wall 31 .

[0027] The upper retaining wall 32 includes a top cover 22 connected to the connecting plate 1, an upper side plate 23 extending downward from the top cover 22 along both sides, and a first outer retaining wall 42 connected to the outer side of the top cover 22. The upper end of the connecting plate 1 is connected to the inner side of the top cover 22, so that the upper retaining wall 32 forms an outer shape with an opening downward.

[0028] The lower retaining wall 31 includes a bottom cover 21 connected to the connecting plate 1, a lower side plate 24 extending upward from the bottom cover 21 along both sides, and a second outer retaining wall 41 connected to the outer side of the bottom cover 21. The lower end of the connecting plate 1 is connected to the inner side of the bottom cover 21, so that the lower retaining wall 31 forms an upward opening shape.

[0029] The electromagnetic shielding connector has an open state and a shielding state. When in the open state, the upper retaining wall 32 and the lower retaining wall 31 are staggered in the horizontal and vertical directions, and the upper retaining wall 32 and the lower retaining wall 31 are separated and form a movable opening. When a downward external force is applied to the upper retaining wall 32, the upper retaining wall 32 overcomes the elastic force of the connecting piece 1 and approaches the lower retaining wall 31 in the horizontal and vertical directions. When in the shielding state, the upper retaining wall 32 and the lower retaining wall 31 are interlocked and combined together, the upper side plate 23 and the lower side plate 24 support each other, and the ends of the upper side plate 23 and the lower side plate 24 are respectively provided with transverse flanges 5, and the flanges 5 of the upper side plate 23 and the lower side plate 24 overlap each other.

[0030] The first outer retaining wall 42 and the second outer retaining wall 41 extend longitudinally. When in the shielding state, the height b1 of the first outer retaining wall 42 and the height b2 of the second outer retaining wall 41 are equal to the sum of the height a1 of the upper side plate 23 and the height a2 of the lower side plate 24. When in the open state, the overall height c1 of the electromagnetic shielding connector is approximately 120% b1. The ends of the first side retaining wall 42 and the second side retaining wall 41 are respectively provided with transverse legs 6. When in the shielding state, one of the legs 6 of the first side retaining wall 42 and the second side retaining wall 41 is supported on the PCB circuit board, and the other is supported on the shielding cover. The side of the device is surrounded by a supporting structure and is not easily deformed. After compression, it forms a cubic structure, which has a better shielding effect for the same number of connectors. The top and the top adopt square surfaces, and both the upper and lower surfaces can be welded and fixed, and the welding area is larger. The present invention can effectively solve the traditional shortcomings of easy detachment, non-reusability, high cost, and high requirements for structure and space. It fully utilizes the shielding characteristics of the mechanism components themselves and cooperates with the PCB spring solution to achieve the shielding effect. It is more flexible, more stable, and has a lower cost.

[0031] See attached Figure 5 and attached Figure 6 As shown, attached Figure 5 is a schematic diagram of an electromagnetic shielding device according to the present invention, Figure 6 For attachment Figure 5 . An electromagnetic shielding device is provided in this embodiment. This electromagnetic shielding device can be widely used in electronic devices with a housing such as mobile phones, tablet computers, and laptop computers. This electronic device usually has a PCB board 8 and an electromagnetic noise source device 9 located on the PCB board. A certain number of electromagnetic shielding connectors are arranged around the electromagnetic noise source device 9 according to the frequency of the electromagnetic radiation source. The bottom cover 21 of the lower side retaining wall 31 of the electromagnetic shielding connector is welded on the PCB board 8. A metal shielding cover 7 is arranged above the electromagnetic shielding connector. The metal shielding cover 7 covers the electromagnetic noise source device 9, thereby shielding the noise of the electromagnetic noise source device 9. In one embodiment, the metal shielding cover 7 is a complete metal cover of the electronic device. In another embodiment, the cover of the electronic device can be made of other materials, and the upper area of ​​the electromagnetic noise source device 9 can be prepared as a metal material by attachment or electroplating, thereby forming a metal cavity together with the electromagnetic shielding connector to achieve noise shielding for the electromagnetic noise source device 9.

[0032] During the installation of the metal shielding cover 7, when a downward external force is applied to the upper baffle wall 32, the upper baffle wall 32 overcomes the elastic force of the connecting plate 1 and approaches the lower baffle wall 31 in the horizontal and vertical directions at the same time, so that the upper baffle wall 32 and the lower baffle wall 31 are finally interlocked and combined together, the upper side plate 23 and the lower side plate 24 support each other, and the flanges 5 of the upper side plate 23 and the lower side plate 24 overlap each other. The support legs 6 of the first side baffle wall 42 are supported on the metal shielding cover 7, and the support legs 6 of the second side baffle wall 41 are supported on the PCB board 8. Since a cubic structure is formed after compression, the supporting structure is stable and reliable, and the shielding characteristics of the mechanism components themselves are fully utilized. The shielding effect is achieved in coordination with the PCB spring sheet solution, which is more flexible, more stable, and has a lower cost.

[0033] In addition, the noise wavelength of the electromagnetic noise source device 9 is proportional to the spacing between adjacent shielding connectors, and the spacing between adjacent shielding connectors is d1 <λ / 4, where λ is the noise wavelength of the electromagnetic noise source device 9. The maximum operating frequency f of the electromagnetic noise source device 9 can be measured during use, and the noise wavelength of the electromagnetic noise source device 9 can be obtained according to λ=c / f.

[0034] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic shielding connector, characterized in that: include: upper retaining wall (32); Lower retaining wall (31); A connecting piece (1), the connecting piece (1) comprising an upper end and a lower end, the upper end of the connecting piece (1) being connected to the upper retaining wall (32), and the lower end of the connecting piece (1) being connected to the lower retaining wall (31); and The invention has an open state and a shielding state. When in the open state, the upper retaining wall (32) and the lower retaining wall (31) are separated and form a movable opening. When in the shielding state, the upper retaining wall (32) and the lower retaining wall (31) are interlocked and combined together. The upper retaining wall (32) comprises a top cover (22) connected to the connecting piece (1) and upper side plates (23) extending downward from the top cover (22) along both sides. The lower retaining wall (31) comprises a bottom cover (21) connected to the connecting piece (1) and lower side plates (24) extending upward from the bottom cover (21) along both sides. When in the shielding state, the upper retaining wall (32) and the lower retaining wall (31) are interlocked and combined together, and the upper side plates (23) and the lower side plates (24) support each other.

2. The electromagnetic shielding connector according to claim 1, characterized in that: The connecting piece (1) comprises an elastic connecting piece.

3. The electromagnetic shielding connector according to claim 2, characterized in that: The connecting piece (1) is Z-shaped, and when in the open state, the upper retaining wall (32) and the lower retaining wall (31) are staggered with each other in the horizontal direction and the vertical direction.

4. The electromagnetic shielding connector according to claim 3, characterized in that: The electromagnetic shielding connector according to claim 1 is characterized in that the ends of the upper side plate (23) and the lower side plate (24) are respectively provided with transverse flanges (5), and when in the shielding state, the flanges (5) of the upper side plate (23) and the lower side plate (24) are overlapped with each other.

5. The electromagnetic shielding connector according to claim 1, characterized in that: The upper retaining wall (32) includes a first outer retaining wall (42) connected to the outer side of the top cover (22), the lower retaining wall (31) includes a second outer retaining wall (41) connected to the outer side of the bottom cover (21), the upper end of the connecting piece (1) is connected to the inner side of the top cover (22), and the lower end of the connecting piece (1) is connected to the inner side of the bottom cover (21). When in the shielding state, the upper retaining wall (32) and the lower retaining wall (31) are interlocked and combined together, and the upper side plate (23) and the lower side plate (24) support each other.

6. The electromagnetic shielding connector according to claim 5, characterized in that: The first outer retaining wall (42) and the second outer retaining wall (41) extend longitudinally. When in the shielding state, the height of the first outer retaining wall (42) and the second outer retaining wall (41) is equal to the sum of the heights of the upper side plate (23) and the lower side plate (24).

7. The electromagnetic shielding connector according to claim 6, characterized in that: Transverse support legs (6) are respectively provided at the ends of the first outer retaining wall (42) and the second outer retaining wall (41).

8. An electromagnetic shielding device, characterized in that: include: A plurality of electromagnetic shielding connectors according to any one of claims 1 to 7 and a metal shielding cover (7) connected to the electromagnetic shielding connector, wherein the electromagnetic shielding connector comprises: upper retaining wall (32); Lower retaining wall (31); A connecting piece (1), the connecting piece (1) comprising an upper end and a lower end, the upper end of the connecting piece (1) being connected to the upper retaining wall (32), and the lower end of the connecting piece (1) being connected to the lower retaining wall (31); and having an open state and a shielding state, when in the open state, the upper retaining wall (32) and the lower retaining wall (31) are separated and form a movable opening, and when in the shielding state, the upper retaining wall (32) and the lower retaining wall (31) are interlocked and combined together; the upper retaining wall The shielding member (32) comprises a top cover (22) connected to the connecting piece (1) and upper side plates (23) extending downward from the top cover (22) along both sides, and the lower side retaining wall (31) comprises a bottom cover (21) connected to the connecting piece (1) and lower side plates (24) extending upward from the bottom cover (21) along both sides, and when in the shielding state, the upper side retaining wall (32) and the lower side retaining wall (31) are interlocked and combined together, and the upper side plates (23) and the lower side plates (24) support each other.

9. An electronic device, comprising a PCB board (8) and an electromagnetic noise source device (9) located on the PCB board, characterized in that: The electromagnetic noise source device (9) is surrounded by a plurality of electromagnetic shielding connectors according to any one of claims 1 to 7 and a metal shielding cover (7) connected to the electromagnetic shielding connector. The shielding connector is arranged around the electromagnetic noise source device (9), and the metal shielding cover (7) covers the electromagnetic noise source device (9). The electromagnetic shielding connector comprises: upper retaining wall (32); Lower retaining wall (31); A connecting piece (1), the connecting piece (1) comprising an upper end and a lower end, the upper end of the connecting piece (1) being connected to the upper retaining wall (32), and the lower end of the connecting piece (1) being connected to the lower retaining wall (31); and having an open state and a shielding state, when in the open state, the upper retaining wall (32) and the lower retaining wall (31) are separated and form a movable opening, and when in the shielding state, the upper retaining wall (32) and the lower retaining wall (31) are interlocked and combined together; the upper retaining wall The shielding member (32) comprises a top cover (22) connected to the connecting piece (1) and upper side plates (23) extending downward from the top cover (22) along both sides, and the lower side retaining wall (31) comprises a bottom cover (21) connected to the connecting piece (1) and lower side plates (24) extending upward from the bottom cover (21) along both sides, and when in the shielding state, the upper side retaining wall (32) and the lower side retaining wall (31) are interlocked and combined together, and the upper side plates (23) and the lower side plates (24) support each other.

10. The electronic device according to claim 9, characterized in that: The noise wavelength of the electromagnetic noise source device (9) is proportional to the spacing between adjacent shielding connectors.

11. The electronic device according to claim 10, characterized in that: The spacing between adjacent shielding connectors is d1 < λ / 4, where λ is the noise wavelength of the electromagnetic noise source device (9).

12. The electronic device according to claim 11, characterized in that: The metal shielding cover (7) comprises a part or the whole of a cover body of the electronic device.

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