Circuit board
By setting the conductive sheet on the same side on the circuit board and conducting through the conductive hole, the signal attenuation problem caused by excessively long conductive paths is solved, and the low loss and high-efficiency signal transmission of the circuit board is achieved.
Patent Information
- Application Number
- CN202421926097.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Because the conductive sheets are located on both sides of the front and rear, the conductive paths are too long, resulting in signal attenuation and insertion loss.
Both the first conductive sheet and the second conductive sheet are located on the same side of the substrate in the front and rear directions, and are electrically conductive through the conductive holes, eliminating or shortening the conductive paths, optimizing the position and spacing of the conductive sheets to reduce insertion loss.
By optimizing the position of the conductive sheet and the setting of the conductive holes, the insertion loss of the circuit board is significantly reduced and the signal transmission efficiency is improved.
Smart Images
Figure CN223093949U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a circuit board. Background Art
[0002] In a traditional circuit board, since the circuit board has a first conductive sheet on its front side and a second conductive sheet on its back side, a conductive path connecting the first and second conductive sheets is provided on the circuit board to achieve electrical conduction between the first conductive sheet and the second conductive sheet. However, this will cause signal attenuation due to excessive insertion loss.
[0003] In view of this, it is necessary to improve the existing circuit board to solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a circuit board that can effectively reduce insertion loss.
[0005] To achieve the above-mentioned utility model purpose, the utility model provides a circuit board, which includes a substrate, a plurality of first conductive sheets and a plurality of second conductive sheets. The substrate has a first surface and a second surface that are oppositely arranged in the height direction. The plurality of first conductive sheets are arranged on the substrate to be connected to a first component, and the plurality of second conductive sheets are arranged on the substrate to be connected to a second component. The first conductive sheets are arranged on the first surface, and the second conductive sheets are arranged on the second surface. The first and second conductive sheets are both located in the front part or the back part of the substrate in the front-back direction, and the first conductive sheet and the corresponding second conductive sheet are electrically connected through a conductive hole.
[0006] As a further improvement of the utility model, the projections of the first conductive sheet and the second conductive sheet electrically connected thereto on the horizontal plane at least partially overlap.
[0007] As a further improvement of the utility model, the conductive hole is located within the overlapping area of the first and second conductive sheets.
[0008] As a further improvement of the utility model, the projection of one of the first and second conductive sheets that are electrically connected to each other on the horizontal plane completely falls within the projection of the other on the horizontal plane.
[0009] As a further improvement of the utility model, the projection of one of the first and second conductive sheets that are electrically connected to each other on the horizontal plane partially falls within the projection of the other on the horizontal plane.
[0010] As a further improvement of the utility model, the projections of the first conductive sheet and the second conductive sheet electrically connected thereto on the horizontal plane do not overlap, and the minimum distance between the conductive hole and any one of the corresponding first and second conductive sheets in the front-back direction is not greater than 15 mils.
[0011] As a further improvement of the present utility model, the first conductive sheet and the second conductive sheet electrically connected thereto are electrically connected through the conductive hole and the conduction path, and the projection of the conductive hole on the horizontal plane at least partially overlaps with the projection of one of the first and second conductive sheets on the horizontal plane.
[0012] As a further improvement of the present utility model, the distance between two adjacent first conductive sheets in the lateral direction is a first pitch, and the distance between two adjacent second conductive sheets in the lateral direction is a second pitch. The difference between the first pitch and the second pitch is less than 0.6 mm.
[0013] As a further improvement of the present utility model, the projection of one of the first and second conductive sheets on the horizontal plane completely falls within the projection of the other on the horizontal plane in the lateral direction and partially falls within the projection of the other on the horizontal plane in the front-rear direction.
[0014] As a further improvement of the present utility model, the projection of one of the first and second conductive sheets on the horizontal plane partially falls within the projection of the other on the horizontal plane in both the lateral direction and the front-rear direction.
[0015] Advantages of the present utility model: In the circuit board of the present utility model, the first conductive sheet is arranged on the first surface, the second conductive sheet is arranged on the second surface, and both the first and second conductive sheets are located at the front or rear of the substrate in the front-rear direction. The first conductive sheet and the second conductive sheet corresponding thereto are electrically connected through the conductive hole. In this way, the conduction path provided on the substrate can be shortened or omitted, thereby reducing the insertion loss on the circuit board. Description of the Drawings
[0016] Figure 1 is a schematic diagram of a circuit board in the prior art.
[0017] Figure 2 is a schematic diagram of the first surface of the circuit board of the present utility model.
[0018] Figure 3 is a schematic diagram of the second surface of the circuit board of the present utility model.
[0019] Figure 4 is a schematic diagram of the first embodiment of the first conductive sheet and the second conductive sheet electrically connected thereto of the circuit board of the present utility model.
[0020] Figure 5 is a schematic diagram of the second embodiment of the first conductive sheet and the second conductive sheet electrically connected thereto of the circuit board of the present utility model.
[0021] Figure 6Schematic diagram of the third embodiment of the first conductive sheet and the second conductive sheet electrically connected thereto on the circuit board of the present utility model.
[0022] Figure 7 Schematic diagram of the fourth embodiment of the first conductive sheet and the second conductive sheet electrically connected thereto on the circuit board of the present utility model.
[0023] Figure 8 Schematic diagram of an implementation manner of two adjacent first conductive sheets and the second conductive sheets electrically connected thereto respectively on the circuit board of the present utility model. Detailed implementation manner
[0024] The present utility model will be described in detail below in conjunction with the embodiments shown in the drawings. However, this embodiment does not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art based on this embodiment is included in the protection scope of the present utility model.
[0025] Please refer to Figure 1 As shown, it is a schematic diagram of the circuit board 100' in the prior art. The circuit board 100' is provided with a first conductive sheet 2' at its front part, a second conductive sheet 3' at its rear part, and a conductive path 5' for electrically connecting the first conductive sheet 2' and the corresponding second conductive sheet 3'. Since the first and second conductive sheets 2' and 3' are respectively located on the front and rear sides of the circuit board 100', the distance between the first conductive sheet 2' and the second conductive sheet 3' is relatively far, so the front and rear distance of the conductive path 5' is relatively long, resulting in a large insertion loss on the circuit board 100'.
[0026] Please refer to Figures 2 to 8 As shown are various preferred embodiments of the electrical connector 100 of the present utility model. In the present utility model, the circuit board 100 includes a substrate 1, a plurality of first conductive sheets 2, and a plurality of second conductive sheets 3.
[0027] For the convenience of description, when introducing the circuit board 100 below, the thickness direction of the substrate 1 will be regarded as the height direction, one direction perpendicular to the height direction will be regarded as the transverse direction, and the other direction perpendicular to the height direction will be regarded as the front - rear direction.
[0028] Please refer to Figure 2 and Figure 3 As shown, the substrate 1 has a first surface 11 and a second surface 12 oppositely arranged in the height direction. The plurality of first conductive sheets 2 are disposed on the substrate 1 to be connected to a first element (not shown), and the plurality of second conductive sheets 3 are disposed on the substrate 1 to be connected to a second element (not shown).
[0029] In some embodiments of the present utility model, the first element may be a connector and the second element may be a cable; in other embodiments of the present utility model, the first element may be a cable and the second element may be a connector.
[0030] In the present utility model, the first conductive sheet 2 is disposed on the first surface 11, the second conductive sheet 3 is disposed on the second surface 12, the first and second conductive sheets 2 and 3 are both located at the front or rear of the substrate 1 in the front-rear direction, and the first conductive sheet 2 and the corresponding second conductive sheet 3 are electrically connected through a conductive hole 4.
[0031] That is to say, when the first conductive sheet 2 is disposed at the front of the substrate 1, the second conductive sheet 3 is also disposed at the front of the substrate 1; when the first conductive sheet 2 is disposed at the rear of the substrate 1, the second conductive sheet 3 is also disposed at the rear of the substrate 1. Whether the first and second conductive sheets 2 and 3 are disposed at the front or rear of the substrate 1, the first conductive sheet 2 and the corresponding second conductive sheet 3 are electrically connected through the conductive hole 4. Thus, the conductive path disposed on the substrate 1 can be shortened or omitted, thereby reducing the insertion loss on the circuit board 100.
[0032] Please refer Figures 4 to 6 As shown, in the first to third embodiments of the present utility model, the projections of the first conductive sheet 2 and the second conductive sheet 3 electrically connected thereto on the horizontal plane at least partially overlap, thereby completely omitting the setting of the conductive path and effectively reducing the insertion loss on the circuit board 100.
[0033] The conductive hole 4 is located in the overlapping area of the first and second conductive sheets 2 and 3.
[0034] Such as Figure 4 As shown, in the first embodiment of the present utility model, the projection of one of the mutually conductive first and second conductive sheets 2 and 3 on the horizontal plane completely falls inside the projection of the other on the horizontal plane.
[0035] Such as Figure 5 , Figure 6 As shown, in the second and third embodiments of the present utility model, the projection of one of the mutually conductive first and second conductive sheets 2 and 3 on the horizontal plane partially falls inside the projection of the other on the horizontal plane.
[0036] Specifically, as Figure 5 As shown, in the second embodiment of the present utility model, the projection of one of the first and second conductive sheets 2 and 3 on the horizontal plane partially falls inside the projection of the other on the horizontal plane in both the lateral direction and the front-rear direction. Figure 5For example, among the mutually conductive first and second conductive sheets 2 and 3, the projection of the second conductive sheet 3 on the horizontal plane partially falls within the projection of the first conductive sheet 2 on the horizontal plane in both the lateral direction and the front-back direction.
[0037] In the third embodiment of the present invention, the projection of one of the first and second conductive sheets 2 and 3 on the horizontal plane completely falls within and partially falls within the projection of the other on the horizontal plane in the front-back direction in the lateral direction. Taking Figure 6 For example, among the mutually conductive first and second conductive sheets 2 and 3, the projection of the second conductive sheet 3 on the horizontal plane completely falls within and partially falls within the projection of the first conductive sheet 2 on the horizontal plane in the front-back direction in the lateral direction.
[0038] Please refer Figure 7 As shown, in the fourth embodiment of the present invention, the projections of the first conductive sheet 2 and the second conductive sheet 3 electrically conductive therewith on the horizontal plane do not overlap, and the minimum distance between the conductive hole 4 and any one of the corresponding first and second conductive sheets 2 and 3 in the front-back direction is not greater than 15 mils, so as to shorten the set length of the conductive path as much as possible.
[0039] Furthermore, in this embodiment, the first conductive sheet 2 and the second conductive sheet 3 electrically conductive therewith are electrically connected through the conductive hole 4 and the conductive path 5, and the projection of the conductive hole 4 on the horizontal plane at least partially overlaps with the projection of one of the first and second conductive sheets 2 and 3 on the horizontal plane.
[0040] In addition, in each embodiment of the present invention, as Figure 8 shown, the distance between two adjacent first conductive sheets 2 in the lateral direction is the first pitch D1, and the distance between two adjacent second conductive sheets 3 in the lateral direction is the second pitch D2. The difference between the first pitch D1 and the second pitch D2 is less than 0.6 mm, so as to ensure better impedance matching between the first conductive sheet 2 and the second conductive sheet 3 by reducing the difference between the first pitch D1 and the second pitch D2, and further optimize the quality of signal transmission.
[0041] The circuit board 100 of the present invention arranges the first conductive sheet 2 on the first surface 11, arranges the second conductive sheet 3 on the second surface 12, and the first and second conductive sheets 2 and 3 are both located in the front or rear part of the substrate 1 in the front-back direction, and electrically connects the first conductive sheet and the corresponding second conductive sheet through the conductive hole. In this way, the conductive path arranged on the substrate 1 can be shortened or omitted, thereby reducing the insertion loss on the circuit board 100.
[0042] It should be understood that although this specification is described by way of examples, not every example only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each example can also be appropriately combined to form other examples that can be understood by those skilled in the art.
[0043] The above examples are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred examples, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. A circuit board, comprising a substrate, a plurality of first conductive sheets, and a plurality of second conductive sheets. The substrate has a first surface and a second surface oppositely arranged in the height direction. The plurality of first conductive sheets are disposed on the substrate to be connected to a first component, and the plurality of second conductive sheets are disposed on the substrate to be connected to a second component, characterized in that: The first conductive sheet is disposed on the first surface, the second conductive sheet is disposed on the second surface, the first and second conductive sheets are both located at the front or rear of the substrate in the front-rear direction, and the first conductive sheet and the second conductive sheet corresponding thereto are electrically connected through a conductive hole.
2. The circuit board according to claim 1, wherein: The projections of the first conductive sheet and the second conductive sheet electrically connected thereto on a horizontal plane at least partially overlap.
3. The circuit board according to claim 2, wherein: The conductive hole is located within the overlapping region of the first and second conductive sheets.
4. The circuit board according to claim 2, characterized in that: The projection of one of the first and second conductive sheets that are electrically connected to each other on a horizontal plane completely falls within the projection of the other on this horizontal plane.
5. The circuit board according to claim 2, characterized in that: The projection of one of the first and second conductive sheets that are electrically connected to each other on a horizontal plane partially falls within the projection of the other on this horizontal plane.
6. The circuit board according to claim 1, wherein: The projections of the first conductive sheet and the second conductive sheet electrically connected thereto on a horizontal plane do not overlap, and the minimum distance between the conductive hole and any one of the corresponding first and second conductive sheets in the front-rear direction is not greater than 15 milli-inches.
7. The circuit board according to claim 6, characterized in that: The first conductive sheet and the second conductive sheet corresponding thereto are electrically connected through the conductive hole and a conductive path, and the projection of the conductive hole on a horizontal plane at least partially overlaps with the projection of one of the first and second conductive sheets on this horizontal plane.
8. The circuit board according to claim 1, characterized in that: The distance between two adjacent first conductive sheets in the lateral direction is a first pitch, the distance between two adjacent second conductive sheets in the lateral direction is a second pitch, and the difference between the first pitch and the second pitch is less than 0.6 millimeters.
9. The circuit board according to claim 5, characterized in that: The projection of one of the first and second conductive sheets on a horizontal plane completely falls within and partially falls within the projection of the other on this horizontal plane in the front-rear direction in the lateral direction.
10. The circuit board according to claim 5, wherein: The projection of one of the first and second conductive sheets on a horizontal plane partially falls within the projection of the other on this horizontal plane in both the lateral direction and the front-rear direction.