A shielding upper cover, a box body and a network device

Abstract

The specification provides a shielding cover, a box body and network equipment, and relates to the technical field of electronics. A shielding cover comprises a cover body and a shielding structure fixed to the cover body. The shielding structure comprises a substrate and a plurality of groups of shielding units formed on the substrate. Each shielding unit comprises a plurality of shielding bodies. Each shielding body has an outer ring portion and an inner embedded portion formed in the outer ring portion and connected to the outer ring portion. The inner embedded portion has two capacitive arms. The capacitive segments of the two capacitive arms are oppositely arranged. The connecting segments of the two capacitive arms are connected to the capacitive segments in the respective capacitive arms and the outer ring portion. The plurality of shielding bodies form an N*M array. The inner embedded portions of the N shielding bodies and the inner embedded portions of the M shielding bodies have a deviation angle. The sum of the deviation angles of the inner embedded portions of the N shielding bodies is 360°. The sum of the deviation angles of the inner embedded portions of the M shielding bodies is 360°. Through the above structure, the security of the network equipment can be improved.

Description

Technical Field

[0001] This specification relates to the field of electronic technology, and in particular to a shielding cover, enclosure, and network device. Background Technology

[0002] With the development of electronic technology, users have increasingly higher demands for the functionality of electronic devices. The density of components deployed in an electronic device is gradually increasing. During the operation of electronic devices, electromagnetic radiation is generated, especially in high-speed network devices. Due to the transmission of high-frequency signals, the electromagnetic radiation in network devices is greatly enhanced. The electromagnetic radiation generated and released outwards can have negative effects on other electronic devices and the human body in the same space. Therefore, how to reduce the amount of electromagnetic radiation emitted by network devices is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this specification provides a shielding cover, a housing, and a network device.

[0004] According to a first aspect of the embodiments of this specification, a shielding cover is provided, comprising:

[0005] Cover;

[0006] A shielding structure is fixed to the inside of the cover.

[0007] The shielding structure includes:

[0008] A substrate, on which a copper-clad layer is formed on a first surface and a plurality of shielding units are formed on a second surface, the first surface facing the cover and the second surface being a surface corresponding to the first surface;

[0009] The shielding unit includes:

[0010] A plurality of shielding bodies, wherein the shielding body forms an outer ring portion and an inner portion formed within the outer ring portion and connected to the outer ring portion, the inner portion forming two receptive arms, the receptive segments of the two receptive arms being arranged opposite to each other, and the connecting segments of the two receptive arms being respectively connected to the receptive segments of their respective receptive arms and the outer ring portion;

[0011] The plurality of shields form an N×M array. There are deviation angles between the embedded parts of the N shields and between the embedded parts of the M shields. The sum of the deviation angles of the embedded parts of the N shields is 360°, and the sum of the deviation angles of the embedded parts of the M shields is 360°.

[0012] Optionally, the deviation angle is 180°.

[0013] Optionally, the outer ring portion is square.

[0014] Optionally, the width (Wa) of the outer ring portion satisfies 0.27mm≤Wa≤0.37mm.

[0015] Optionally, the length (La) of the outer ring portion satisfies 4.96mm≤La≤5.06mm.

[0016] Optionally, the width (Wb) of the resilient section satisfies 0.25mm≤Wb≤0.35mm, the length (Lb) of the resilient section satisfies 2.41mm≤Lb≤2.51mm, the width (Wc) of the connecting section satisfies 0.35mm≤Wc≤0.45mm, and the length (D) of the connecting section satisfies 0.83mm≤D≤0.93mm.

[0017] Optionally, the distance (g) between the capacitive segments of the two embedded parts in the shielding body satisfies 1.76mm≤g≤1.86mm.

[0018] Optionally, the number of substrates is at least two.

[0019] According to a second aspect of the embodiments of this specification, a housing is provided, comprising:

[0020] Lower housing;

[0021] The shielding cover described in any of the above claims is connected to the lower housing.

[0022] The shielding unit of the shielding structure in the shielding top cover faces the lower housing.

[0023] According to a third aspect of the embodiments of this specification, a network device is provided, comprising:

[0024] The aforementioned box.

[0025] The technical solutions provided in the embodiments of this specification may include the following beneficial effects:

[0026] In the embodiments of this specification, the shielding structure provided inside the shielding cover, and the shielding unit formed on the substrate of the shielding structure facing the motherboard in the network device on which the shielding cover is provided, absorb the electromagnetic radiation radiated from the electronic device through the resonator forming the capacitor-inductor circuit, thereby reducing the amount of electromagnetic radiation emitted by the network device and improving the security of the network device.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0029] Figure 1 This is a schematic diagram of the structure of a shielding cover involved in this application;

[0030] Figure 2 This is a schematic diagram of the structure of a shielding unit in a shielding cover according to this application;

[0031] Figure 3 This is a schematic diagram of the structure of the shielding body within the shielding unit of a shielding cover according to this application;

[0032] Figure 4 This is a structural schematic diagram of a box-type enclosure involved in this application;

[0033] Figure 5 This is a schematic diagram of the structure of a network device involved in this application. Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0035] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0037] This application provides a shielding cover 100, such as Figure 1 As shown, it includes:

[0038] The cover 1 is formed by sheet metal, and the cover 1 has a side that subsequently faces the box body and a side that subsequently faces outward from the box body;

[0039] The shielding structure 2 is fixed to the inside of the cover 1, that is, the side facing the box.

[0040] The shielding structure 2 includes:

[0041] The substrate 20 has a copper-clad layer formed on its first surface and a plurality of shielding units 21 formed on its second surface. The first surface faces the cover 1 and the second surface is the surface corresponding to the first surface. That is, the copper-clad layer of the first surface of the substrate 20 is attached to the cover 1.

[0042] The shielding unit 21, such as Figure 2 As shown, it includes:

[0043] A plurality of shielding bodies 22, each shielding body 22 having an outer ring portion 220 and an inner portion 221 formed within the outer ring portion 220 and connected to the outer ring portion 220. The inner portion 221 has two receptive arms 222, with receptive segments 222A in the two receptive arms 222 arranged opposite to each other, and connecting segments 222B in the two receptive arms 222 respectively connecting the receptive segments 222A in each receptive arm 222 and the outer ring portion 220.

[0044] The plurality of shields 22 form an N×M array. A deviation angle X is formed between the embedded portions 221 of the N shields 22 and between the embedded portions 221 of the M shields 22. The sum of the deviation angles of the embedded portions 221 of the N shields 22 is 360°.

[0045] N and M are set to positive integers greater than 2. The minimum array formed by several shielding bodies 22 is a 2×2 array. Depending on the size of the array, the deviation angle X can also be set to different values. This deviation angle X refers to the angle difference between the centerlines of the capacitive segments 222A of the embedded portions 221 of adjacent shielding bodies 22. Furthermore, the sum of deviation angles refers to the sum of the deviation angles of the first and second shielding bodies in a row or column of shielding bodies 22, plus the deviation angles of the second and third shielding bodies, ..., the (N-1)th and Nth shielding bodies, plus the deviation angles of the Nth and first shielding bodies. Taking a 2×2 array as an example, if the deviation angle X is 180°, then the deviation angle X between the first and second shielding bodies is 180°, and the deviation angle X between the second and first shielding bodies is also 180°. The sum of the deviation angles is 180° + 180° = 360°. The value of each deviation angle decreases as the array expands and increases as the array shrinks.

[0046] In the shielding unit 21, the two capacitive segments 222A in the embedded part 221 are arranged opposite to each other, and there is a certain distance between the two capacitive segments 222A. Each capacitive segment 222A is connected to the outer ring part 220 through a connecting segment 222B to form an approximate LC circuit structure.

[0047] The shielding unit 21 absorbs electromagnetic radiation emitted from within the network device through the resonance of the LC circuit, thereby preventing electromagnetic radiation generated within the network device from being emitted to the outside.

[0048] Optionally, the deviation angle X is 180°.

[0049] Optional, such as Figure 3 As shown, the width (Wa) of the edge of the outer ring portion 220 satisfies 0.27mm≤Wa≤0.37mm. Preferably, the width of the outer ring portion 220 can be set to 0.32mm.

[0050] Optionally, the outer ring portion 220 is square.

[0051] When the outer ring portion 220 is set as a square, optionally, the length (La) of the side of the outer ring portion 220 satisfies 4.96mm≤La≤5.06mm, preferably, the length of the side of the outer ring portion 220 can be set to 5.01mm.

[0052] Optionally, the width (Wb) of the resilient segment 222A satisfies 0.25mm ≤ Wb ≤ 0.35mm, preferably, the width of the resilient segment 222A can be set to 0.3mm, the length (Lb) of the resilient segment 222A satisfies 2.41mm ≤ Lb ≤ 2.51mm, preferably, the length of the resilient segment 222A can be set to 2.46mm, the width (Wc) of the connecting segment 222B satisfies 0.35mm ≤ Wc ≤ 0.45mm, preferably, the width of the connecting segment 222B can be set to 0.4mm, and the length (D) of the connecting segment 222B satisfies 0.83mm ≤ D ≤ 0.93mm, preferably, the length of the connecting segment 222B can be set to 0.88mm.

[0053] Optionally, the distance (g) between the capacitive segments 222A of the two embedded portions 221 in the shield 22 satisfies 1.76mm≤g≤1.86mm. Preferably, the distance between the capacitive segments 222A can be set to 1.81mm.

[0054] The dimensions of each of the above structures can be set according to the specific radiation frequency, without any restrictions.

[0055] Optionally, the number of substrates 20 is at least two, and the substrates 20 may be spaced apart by a certain distance, depending on the location of the main electromagnetic radiation generating device in the network device. The substrate 20 may be disposed above the device.

[0056] Correspondingly, this application also provides a housing 200, such as Figure 4 As shown, it includes:

[0057] Lower housing 201;

[0058] The shielding cover 100 described in any of the above claims is connected to the lower housing 201;

[0059] In the shielding cover 100, the shielding unit 21 of the shielding structure 2 faces the lower housing 201.

[0060] Correspondingly, this application also provides a network device 300, such as Figure 5 As shown, it includes:

[0061] The aforementioned housing 200.

[0062] A main board 301 is provided on the lower shell 201 of the housing 200. A device is deployed on the main board 301. The device radiates electromagnetic radiation during operation. A shielding structure 2 is provided on the side of the shielding cover 100 facing the main board 301, so that the shielding body 22 formed in the shielding structure 2 is placed above the device.

[0063] The technical solutions provided in the embodiments of this specification may include the following beneficial effects:

[0064] In the embodiments of this specification, the shielding structure provided inside the shielding cover, with the shielding unit formed on the substrate of the shielding structure facing the motherboard in the network device on which the shielding cover is provided, absorbs the electromagnetic radiation radiated from the electronic device by forming a shielding body with a capacitor and inductor circuit, thereby reducing the amount of electromagnetic radiation emitted by the network device and improving the security of the network device.

[0065] Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention claimed herein. This specification is intended to cover any variations, uses, or adaptations that follow the general principles of this specification and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this specification are indicated by the following claims.

[0066] It should be understood that this specification is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this specification is limited only by the appended claims.

[0067] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A shielding cover, characterized in that, include: Cover; A shielding structure is fixed to the inner side of the cover. The shielding structure includes: A substrate, on which a copper-clad layer is formed on a first surface and a plurality of shielding units are formed on a second surface, the first surface facing the cover and the second surface being a surface corresponding to the first surface; The shielding unit includes: A plurality of shielding bodies, wherein the shielding body forms an outer ring portion and an inner portion formed within the outer ring portion and connected to the outer ring portion, the inner portion forming two receptive arms, the receptive segments of the two receptive arms being arranged opposite to each other, and the connecting segments of the two receptive arms being respectively connected to the receptive segments of their respective receptive arms and the outer ring portion; The plurality of shields form an N×M array. There are deviation angles between the embedded parts of the N shields and between the embedded parts of the M shields. The sum of the deviation angles of the embedded parts of the N shields is 360°, and the sum of the deviation angles of the embedded parts of the M shields is 360°.

2. The shielding cover according to claim 1, characterized in that, The deviation angle is 180°.

3. The shielding cover according to claim 1, characterized in that, The outer ring is square.

4. The shielding cover according to claim 1, characterized in that, The width (Wa) of the outer ring portion satisfies 0.27mm≤Wa≤0.37mm.

5. The shielding cover according to claim 1, characterized in that, The length (La) of the outer ring portion satisfies 4.96mm≤La≤5.06mm.

6. The shielding cover according to claim 1, characterized in that, The width (Wb) of the resilient section satisfies 0.25mm≤Wb≤0.35mm, the length (Lb) of the resilient section satisfies 2.41mm≤Lb≤2.51mm, the width (Wc) of the connecting section satisfies 0.35mm≤Wc≤0.45mm, and the length (D) of the connecting section satisfies 0.83mm≤D≤0.93mm.

7. The shielding cover according to claim 1, characterized in that, The distance (g) between the capacitive segments of the two embedded parts in the shielding body satisfies 1.76mm≤g≤1.86mm.

8. The shielding cover according to claim 1, characterized in that, The number of substrates is at least two.

9. A box, characterized in that, include: Lower housing; The shielding cover according to any one of claims 1-8 is connected to the lower housing; The shielding unit of the shielding structure in the shielding top cover faces the lower housing.

10. A network device, characterized in that, include: The housing as described in claim 9 above.

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