Encryption circuit board and electronic equipment

Abstract

The invention provides an encrypted circuit board and electronic equipment, the encrypted circuit board comprises a plurality of groups of transmission lines, each group of transmission lines is provided with a winding area, and the winding intervals of the winding areas of the plurality of groups of transmission lines are unequal. According to the invention, the winding distances of the winding areas of the plurality of groups of transmission lines are not equal, so that even if the winding distance of one group of transmission lines is cracked, the winding distances of other groups of transmission lines cannot be obtained, and the encryption protection effect on the wiring design of the circuit board is further achieved.

Description

Technical Field

[0001] The present application relates to the field of electronic equipment, and in particular to an encryption circuit board and electronic equipment. Background Art

[0002] In some electronic module fields that need to have confidentiality characteristics, circuit routing designs with better performance are often copied.

[0003] At present, the commonly used encrypted circuit boards will increase the complexity of the circuits under the visual inspection of human eyes or optical instruments by making the routing design of the circuits more complex, with more bends and more loops, so as to play a certain role in confidentiality. The width of the bending area can be called the serpentine wiring spacing or winding spacing. At present, all serpentine wiring spacings on a circuit board usually adopt a fixed value. When the value of the serpentine wiring spacing of a certain line is cracked, it is equivalent to cracking the serpentine wiring spacing of other lines, so that it is easier to crack the entire routing design, and the confidentiality is low. Summary of the invention

[0004] In order to solve the problems in the prior art, the present application provides an encrypted circuit board and an electronic device, which can improve the confidentiality of the wiring design of the circuit board.

[0005] The present application provides an encrypted circuit board, which includes multiple groups of transmission lines, each group of transmission lines is provided with a winding area, and the winding spacings of the winding areas of the multiple groups of transmission lines are not equal.

[0006] In one embodiment, the winding pitch of the winding area is determined according to a preset formula: W=SR+D, wherein W is the winding pitch, SR is the fixed pitch, and D is the additional pitch;

[0007] The additional spacings of each group of transmission lines are not equal.

[0008] In one embodiment, each of the transmission lines has a number, and the additional spacing of the transmission lines is determined according to the number of the transmission lines.

[0009] In one embodiment, the lengths of the plurality of groups of transmission lines are all within a preset length range.

[0010] In one embodiment, in one or more groups of transmission lines, the number of the winding areas is plural.

[0011] In one embodiment, each group of the transmission lines includes a plurality of conductive wires.

[0012] In one embodiment, the encryption circuit board further includes a plurality of welding points;

[0013] The number of the welding points is twice the number of the transmission lines; and a plurality of the welding points are arranged corresponding to the two ends of a plurality of groups of the transmission lines.

[0014] In one embodiment, the encryption circuit board further includes an interference point, and the shape of the interference point is consistent with the shape of the welding point.

[0015] In one embodiment, the encryption circuit board further includes an interference line;

[0016] The interference line is electrically connected to the interference point, or the interference line is electrically connected to the transmission line.

[0017] The present application also proposes an electronic device, which includes the above-mentioned encryption circuit board.

[0018] The present application sets the winding spacings of the winding areas of multiple groups of transmission lines to be unequal. Even if the winding spacing of one group of transmission lines is cracked, the winding spacings of other groups of transmission lines cannot be obtained, thereby encrypting and protecting the wiring design of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of an encryption circuit board of the present application.

[0020] Figure 2 It is a schematic diagram of an embodiment of the winding spacing of the transmission line of the present application.

[0021] Figure 3 It is a schematic diagram of another embodiment of the winding spacing of the transmission line of the present application.

[0022] Figure 4 This is a schematic structural diagram of another embodiment of the encryption circuit board of the present application.

[0023] Main component symbols

[0024] Encryption circuit board 100 Transmission line 110

[0025] Winding area 111 Winding spacing W

[0026] Welding point 120 Interference point 130

[0027] Interference line 140

[0028] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components.

[0030] The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include the plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the existence or addition of one or more other features, regions, integers, steps, operations, components and / or groups thereof.

[0031] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0032] The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the reference drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0033] Reference Figures 1-2 The present application proposes an encrypted circuit board 100, which includes a plurality of transmission lines 110, each of which is provided with a winding area 111, and the winding spacings W of the winding areas 111 of the plurality of transmission lines 110 are not equal. The number of the transmission lines 110 may be greater than or equal to 2.

[0034] In the circuit board wiring design, the transmission line 110 is usually designed to be wound to ensure that the total length of multiple transmission lines 110 is consistent, thereby ensuring the consistency of signal transmission. At present, the winding spacing W of different transmission lines 110 is set to a fixed value, which can simplify the wiring design and circuit board production steps, but it is also easy to be copied.

[0035] In this embodiment, each group of transmission lines 110 may include one or more wires, and the winding area 111 may be set on one or more of the wires. The winding spacings W of the winding areas 111 in the multiple groups of transmission lines 110 are not equal. In this way, even if the winding spacing W of one group of transmission lines 110 is cracked, the winding spacings W of other groups of transmission lines 110 cannot be obtained, thereby playing a role in encryption protection of the wiring design of the circuit board.

[0036] In one embodiment, the winding spacing W of the winding area 111 is determined according to a preset formula: W=SR+D, where SR is a fixed spacing and D is an additional spacing. The additional spacing of each group of transmission lines 110 is not equal. The additional spacing can be preset or set according to the position, number, etc. of the transmission line 110.

[0037] In one embodiment, each group of the transmission lines 110 is numbered, and the additional spacing of the transmission lines 110 is determined according to the numbers of the transmission lines 110 .

[0038] For example, the encrypted circuit board 100 includes 5 groups of transmission lines 110, which are numbered 1 to 5 in sequence. The additional spacings corresponding to the transmission lines 110 numbered 1 to 5 are 0.01, 0.02, 0.03, 0.04, and 0.05 in sequence. If the fixed spacing is set to 21, the winding spacings W of the three groups of transmission lines 110 are 21.01, 21.02, 21.03, 21.04, and 21.05 respectively.

[0039] Alternatively, the additional spacing of multiple groups of transmission lines 110 can be set according to the name of the encrypted circuit board 100. The encrypted circuit board 100 is usually given a name when it is designed or manufactured for identification. For example, if the name of the encrypted circuit board 100 is "BANNA", the five groups of transmission lines 110 can be numbered as B, A, N, N, A. And the additional spacing of the transmission lines 110 with corresponding numbers is set according to the following table.

[0040]

[0041] Furthermore, the winding spacing W of the plurality of transmission lines 110 may be set according to the name and position of the encrypted circuit board 100. Figure 3, the five groups of encrypted circuit boards 100 are numbered 1 to 5 from left to right, which correspond to the names of the encrypted circuit boards 100 B, A, N, N, A respectively. Then the attachment spacings of the transmission lines 110 numbered 1 to 5 are 0.02, 0.01, 0.14, 0.14, 0.01 respectively. In this way, it is easy for internal personnel to understand and prevent cracking by external personnel, further strengthening the confidentiality of the encrypted circuit board 100. In addition, the transmission lines 110 can also be set to 3 groups, 4 groups, 6 groups, 7 groups, etc., and the corresponding names of the encrypted circuit boards 100 can also be 3, 4, 6, 7, etc. letters, which are not limited here.

[0042] In one embodiment, the lengths of the plurality of transmission lines 110 are all within a preset length range, so that the transmission distances of the plurality of transmission lines 110 can be ensured to be substantially the same, thereby ensuring the consistency of signal transmission.

[0043] In one embodiment, in one or more groups of transmission lines 110, there are multiple winding areas 111. The number of winding areas 111 can be set to one or more according to the routing path of each group of transmission lines 110 or other requirements.

[0044] Reference Figure 4 , in one embodiment, the encryption circuit board 100 further includes a plurality of welding points 120;

[0045] The number of the welding points 120 is twice the number of the transmission lines 110; the plurality of welding points 120 are arranged at both ends of the plurality of groups of the transmission lines 110. The welding points 120 at the same end can be arranged in a row or a column according to the position of the transmission line 110, so as to facilitate the connection of the transmission line 110 with an external circuit.

[0046] In one embodiment, the encryption circuit board 100 further includes an interference point 130, and the shape of the interference point 130 is consistent with the shape of the welding point 120. The interference point 130 can be set between multiple welding points 120. In this way, the welding point 120 and the interference point 130 cannot be distinguished from the outside of the encryption circuit board 100, and the routing of the transmission line 110 cannot be cracked, which further enhances the confidentiality of the encryption circuit board 100.

[0047] In one embodiment, the encryption circuit board 100 further includes an interference line 140. The interference line 140 is electrically connected to the interference point 130, or the interference line 140 is electrically connected to the transmission line 110. In this way, even if the encryption circuit board 100 is disassembled, the interference line 140 and the transmission line 110 cannot be distinguished, and the connection relationship between the multiple interference points 130, the interference line 140, the welding point 120 and the transmission line 110 cannot be distinguished, which further enhances the confidentiality of the encryption circuit board 100.

[0048] The present application sets the winding spacing W of the winding areas of multiple groups of transmission lines 110 to be unequal. Even if the winding spacing W of one group of transmission lines 110 is cracked, the winding spacing W of other groups of transmission lines 110 cannot be obtained, thereby encrypting and protecting the wiring design of the circuit board.

[0049] The present application also proposes an electronic device, which includes the above-mentioned encryption circuit board 100. The electronic device can be a mobile phone, a computer, a smart wearable device, a server, and other devices.

[0050] The detailed structure of the encryption circuit board 100 can refer to the above-mentioned embodiment and will not be described in detail here; it can be understood that since the above-mentioned encryption circuit board 100 is used in the electronic device of the present invention, the embodiment of the electronic device of the present invention includes all technical solutions of all embodiments of the above-mentioned encryption circuit board 100, and the technical effects achieved are also exactly the same, which will not be described in detail here.

[0051] In the above, the specific implementation of the present application is described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific implementation of the present application without departing from the spirit and scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. An encrypted circuit board, comprising a plurality of groups of transmission lines, each group of transmission lines having a winding area, characterized in that: The winding intervals of the winding areas of the plurality of groups of transmission lines are not equal.

2. The encryption circuit board as claimed in claim 1, characterized in that: The winding pitch of the winding area is determined according to a preset formula: W=SR+D, where W is the winding pitch, SR is the fixed pitch, and D is the additional pitch; The additional spacings of each group of transmission lines are not equal.

3. The encryption circuit board as claimed in claim 2, characterized in that: Each of the transmission lines has a number, and the additional spacing of the transmission lines is determined according to the number of the transmission lines.

4. The encryption circuit board as claimed in claim 1, characterized in that: The lengths of the plurality of transmission lines are all within a preset length range.

5. The encryption circuit board as claimed in claim 1, characterized in that: In one or more groups of transmission lines, the number of the winding areas is plural.

6. The encryption circuit board as claimed in claim 1, characterized in that: Each group of the transmission lines includes a plurality of conductors.

7. The encryption circuit board as claimed in claim 1, characterized in that: The encryption circuit board also includes a plurality of welding points; The number of the welding points is twice the number of the transmission lines; and a plurality of the welding points are arranged corresponding to the two ends of a plurality of groups of the transmission lines.

8. The encryption circuit board as claimed in claim 7, characterized in that: The encryption circuit board also includes an interference point, and the shape of the interference point is consistent with the shape of the welding point.

9. The encryption circuit board as claimed in claim 8, characterized in that: The encryption circuit board also includes an interference line; The interference line is electrically connected to the interference point, or the interference line is electrically connected to the transmission line.

10. An electronic device, characterized in that: The electronic device comprises the encryption circuit board as claimed in any one of claims 1 to 9.

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