Antenna structure and electronic equipment
By optimizing the layout of the inner layer wiring unit, outer layer wiring unit, and connecting wiring unit on the support, the high cost and high loss problems of traditional antenna coil stacked structures are solved, achieving more efficient signal transmission and thinner and lighter equipment.
Patent Information
- Application Number
- CN202521480484.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2035-07-15
AI Technical Summary
Traditional antenna coil stacked structures have high production costs, large thickness, and significant signal loss, which affects antenna performance and efficiency.
By employing the coordinated operation of inner layer routing units, outer layer routing units, and connecting routing units on the support component, the coil layout is optimized, allowing the coils to be concentrated on the same side, reducing the number of layers and lowering signal loss.
It reduces antenna structure production costs, decreases signal loss, improves antenna performance and efficiency, and meets the demand for thinner and lighter electronic devices.
Smart Images
Figure CN223462410U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of circuit metal plate, in particular to an antenna structure and an electronic device. BACKGROUND
[0002] In a traditional antenna coil laminated structure, a copper coil is attached to each side of a polyimide (PI) base dielectric insulating film, and the two side coils are connected by a through hole made of electroplated copper material. The preparation process of this coil laminated structure is complex and has high cost. Meanwhile, the antenna laminated structure increases signal loss, reduces antenna performance and efficiency. CONTENT OF THE INVENTION
[0003] To solve the above problems, the present application provides an antenna structure, comprising:
[0004] a support piece comprising a first surface and a second surface arranged along a thickness direction, the first surface being used for fixing with a shell; and
[0005] a metal coil located on the second surface of the support piece, comprising a first external connection end and a second external connection end located at two ends respectively; the metal coil further comprises an inner layer trace unit, an outer layer trace unit and a connection trace unit, two ends of the connection trace unit being connected with the inner layer trace unit and the outer layer trace unit respectively, and the outer layer trace unit being arranged outside the inner layer trace unit;
[0006] wherein the inner layer trace unit surrounds at least part of the support piece, and an end part thereof away from the connection trace unit forms the first external connection end; the outer layer trace unit surrounds at least part of the support piece, and an end part thereof away from the connection trace unit forms the second external connection end;
[0007] the first external connection end and the second external connection end are arranged at intervals, and the connection trace unit at least partially penetrates the gap between the first external connection end and the second external connection end.
[0008] In one of the embodiments, the inner layer trace unit comprises an inner main body trace and a first branch trace, the inner main body trace surrounds at least part of the support piece, and one end of the first branch trace is electrically connected with the inner main body trace, and the other end of the first branch trace extends from the edge of the support piece to the inside of the support piece to form the first external connection end; and / or
[0009] the outer layer trace unit comprises an outer main body trace and a second branch trace, the outer main body trace surrounds at least part of the support piece, and one end of the second branch trace is electrically connected with the outer main body trace, and the other end of the second branch trace extends from the edge of the support piece to the inside of the support piece to form the second external connection end.
[0010] In one of the embodiments, the first branch wire is arranged in parallel with the second branch wire.
[0011] In one of the embodiments, the connection wire unit is formed with a containing region having an opening, the second external terminal is located in the containing region, and at least part of the second branch wire is located in the opening; the first external terminal is away from the containing region.
[0012] In one of the embodiments, the connection wire unit comprises a first connection line, an intermediate connection line and a second connection line, two ends of the intermediate connection line are connected with the first connection line and the second connection line respectively, one end of the first connection line away from the intermediate connection line is electrically connected with the inner main body wire, one end of the second connection line away from the intermediate connection line is electrically connected with the outer main body wire; so that the first connection line, the intermediate connection line and the second connection line form the containing space; wherein,
[0013] The first connection line and the second connection line are arranged in parallel with the first branch wire or the second branch wire.
[0014] In one of the embodiments, the metal coil further comprises a plurality of third external terminals, the third external terminals are electrically connected with the metal coil, and the third external terminals are located on the outer layer wire unit; and / or
[0015] The third external terminals are located on the inner layer wire unit; and / or
[0016] The third external terminals are located on the connection wire unit.
[0017] In one of the embodiments, the metal coil further comprises a third branch wire, one end of the third branch wire is electrically connected with the intermediate connection line, the other end of the third branch wire extends from the intermediate connection line in a direction close to the first external terminal or the second external terminal, so as to form the third external terminal.
[0018] In one of the embodiments, the third branch wire is arranged in parallel with the first branch wire and the second branch wire.
[0019] In one of the embodiments, the third branch wire and the third external terminal are both located in the containing region.
[0020] In one of the embodiments, the support comprises a main body part and a connecting part; the main body part is in a ring structure with the head and tail connected; the connecting part extends from one side frame of the main body part to the inside of the main body part, and the connecting part is in a strip structure.
[0021] The outer-layer trace unit and the inner-layer trace unit are located on the main body part, and the connecting trace unit is located on the connecting part, wherein the connecting trace unit, the first external terminal and the second external terminal are all located on the connecting part;
[0022] The first external terminal and the second external terminal are located at an end of the connecting part away from the main body part, and the first external terminal and the second external terminal are arranged in a direction perpendicular to the extending direction of the connecting part.
[0023] In one of the embodiments, the inner-layer trace unit comprises an inner main body trace and a first branch trace electrically connected, and the outer-layer trace unit comprises an outer main body trace and a second branch trace electrically connected; the inner main body trace and the outer main body trace are located on the main body part, and the first branch trace and the second branch trace are located on the connecting part;
[0024] The extending direction of the first branch trace and the second branch trace is the same as the extending direction of the connecting part.
[0025] In one of the embodiments, the connecting trace unit comprises a first connecting line, an intermediate connecting line and a second connecting line, and the two ends of the intermediate connecting line are connected to the first connecting line and the second connecting line respectively;
[0026] The first connecting line, the second connecting line and the intermediate connecting line are all located on the connecting part, and the first connecting line and the second connecting line are the same as the extending direction of the connecting part.
[0027] In one of the embodiments, the antenna structure further comprises a reinforcing structure, and the reinforcing structure is arranged on the first surface of the connecting part;
[0028] The first external terminal and the second external terminal are arranged in a direction perpendicular to the extending direction of the connecting part.
[0029] In one of the embodiments, at least part of the reinforcing structure protrudes from the first surface.
[0030] In one of the embodiments, the width of the inner-layer trace unit ranges from 0.8mm to 10mm; and / or
[0031] The width of the outer-layer trace unit ranges from 0.8mm to 10mm; and / or
[0032] The interval distance between the first external terminal and the second external terminal ranges from 0.2mm to 3mm.
[0033] The present application also provides an electronic device comprising a shell and the antenna structure mentioned in any of the above embodiments.
[0034] The technical scheme provided by the embodiment of the present application can include the following beneficial effects:
[0035] As can be seen from the above embodiment, the antenna structure of the present application comprises a support and a metal coil located on the support. The metal coil comprises an inner layer wiring unit, an outer layer wiring unit wound outside the inner layer wiring unit, and a connecting wiring unit connecting the two. The inner layer wiring unit is wound around at least part of the support, and the end portion thereof away from the connecting wiring unit forms a first external connection end. The outer layer wiring unit is wound around at least part of the support, and the end portion thereof away from the connecting wiring unit forms a second external connection end. The two ends are arranged at intervals, and the connecting wiring unit at least partially penetrates the gap formed by the two ends. By optimizing the coil layout, i.e. by forming a complete coil structure on the same side of the support through the cooperation of each wiring unit, the present application not only effectively reduces the number of coil layers and the production cost of the antenna structure, but also reduces signal loss and improves antenna performance and efficiency by arranging the coils on the same side, effectively solving the problems of high cost, large thickness and large signal loss of the traditional antenna coil laminated structure.
[0036] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0037] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0038] Figure 1 The structural schematic diagram of the antenna structure provided in an embodiment of the present application from one perspective.
[0039] Figure 2 The structural schematic diagram of the antenna structure provided in an embodiment of the present application from one perspective.
[0040] Figure 3 The structural schematic diagram of the antenna structure provided in an embodiment of the present application from one perspective.
[0041] Figure 4 The structural schematic diagram of the antenna structure provided in an embodiment of the present application from one perspective.
[0042] Figure 5 The structural schematic diagram of the antenna structure provided in an embodiment of the present application from one perspective.
[0043] Figure 6A structural schematic view of an antenna structure provided in an embodiment of the present application from a perspective.
[0044] Figure 7 A structural schematic view of an antenna structure provided in an embodiment of the present application from a perspective.
[0045] Figure 8 A structural schematic view of an antenna structure provided in an embodiment of the present application from a perspective.
[0046] Figure 9 A structural schematic view of an antenna structure provided in an embodiment of the present application from a perspective.
[0047] Reference Signs:
[0048] 1, support; 100a, first surface; 100b, second surface; 10, main body; 11, connecting part; 2, metal coil; 21, inner layer wiring unit; 210, inner main body wiring; 211, first branch wiring; 212, first external terminal; 22, outer layer wiring unit; 220, outer main body wiring; 221, second branch wiring; 222, second external terminal; 23, connecting unit wiring; 230, accommodating area; 231, first connecting line; 232, intermediate connecting line; 233, second connecting line; 24, third branch wiring; 25, third external terminal; 3, reinforcing structure. DETAILED DESCRIPTION
[0049] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent similar or analogous elements. Various changes, modifications, and equivalents thereof could become apparent to those skilled in the art upon reading the description. For example, the order in which the operations are described is merely an example and not limiting as to the order in which the operations are performed, as long as the desired results are achieved. Furthermore, the description herein can omit well-known features and elements to improve clarity and conciseness. The ways described in the following exemplary embodiments are not representative of all ways consistent with the present application. Rather, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.
[0050] As described in the background, in the conventional antenna coil laminated structure, not only the thickness of the circuit board is large, which is difficult to meet the needs of small electronic devices, but also the reverse eddy current is easily generated between the laminated coils, which leads to energy loss, reduces the radiation efficiency of the antenna, and makes the ability of the antenna to transmit or receive signals decline. At the same time, the reverse eddy current also causes signal interference, leading to signal distortion, attenuation, and even noise, affecting communication quality, etc.
[0051] Based on this, the application provides an antenna structure, which can effectively solve the problems of large thickness and low performance efficiency in the traditional antenna coil laminated structure.
[0052] With reference to Figures 1 to 6 , the antenna structure comprises a support 1 and a metal coil 2 located on the support 1. The support 1 comprises a first surface 100a and a second surface 100b arranged along the thickness direction (as shown in Figure 8 ). The first surface 100a is used to be fixed with a shell. The metal coil 2 is located on the second surface 100b, and comprises a first outer connecting end 212 and a second outer connecting end 222 located at two ends respectively. The metal coil 2 further comprises an inner layer trace unit 21, an outer layer trace unit 22 and a connecting trace unit 23. The two ends of the connecting trace unit 23 are connected with the inner layer trace unit 21 and the outer layer trace unit 22 respectively. The outer layer trace unit 22 is arranged outside the inner layer trace unit 21.
[0053] The inner layer trace unit 21 is arranged around at least part of the support 1, and one end thereof away from the connecting trace unit 23 forms the first outer connecting end 212. The outer layer trace unit 22 is arranged around at least part of the support 1, and one end thereof away from the connecting trace unit 23 forms the second outer connecting end 222. The first outer connecting end 212 and the second outer connecting end 222 are arranged in a spaced manner, and the connecting trace unit 23 at least partially passes through the gap between the first outer connecting end 212 and the second outer connecting end 222. It should be noted that the above-mentioned “the inner layer trace unit 21 is arranged around at least part of the support 1” and “the outer layer trace unit 22 is arranged around at least part of the support 1” do not mean that the inner layer trace unit 21 and the outer layer trace unit 22 are arranged outside the support 1; instead, it means that the inner layer trace unit 21 and the outer layer trace unit 22 form a structure with the proximal end on the second surface 100b of the support 1.
[0054] Specifically, the first outer connecting end 212 can be understood as the starting end of the metal coil 2, and the second outer connecting end 222 can be understood as the terminal end of the metal coil 2. The metal coil 2 is understood as the metal trace from the starting end to the terminal end after winding around the support 1 for several turns, i.e., the number of turns of the metal coil 2 is not limited in the application. It can also be understood that the number of turns of the inner layer trace unit 21 or the outer layer trace unit 22 around the support 1 is not limited, as long as the inner layer trace unit 21 and the outer layer trace unit 22 do not interfere with each other, and a functionally complete coil is formed through the connecting trace unit 23.
[0055] Exemplarily, with reference to Figure 9 , in Figure 9Two metal coils 2 are arranged on the support 1, each of which includes an inner layer wiring unit 21 and an outer layer wiring unit 22. In other words, in this embodiment, the inner layer wiring unit 21 and the outer layer wiring unit 22 are both arranged in two turns. One inner layer wiring unit 21 and one outer layer wiring unit 22 are electrically connected and form one metal coil 2; the other inner layer wiring unit 21 and the other outer layer wiring unit 22 are electrically connected and form the other metal coil 2. One of the two metal coils 2 is arranged outside the other. Each of the first metal coils 2 includes a first external terminal 212 and a second external terminal 222. Of course, in other embodiments, the number of metal coils can be more than three.
[0056] It is particularly worth noting that the first external terminal 212 and the second external terminal 222 in this embodiment can be understood as two regions for electrical connection with external devices. Various forms of connection parts 11 such as pads, lead terminals, metal springs, and posts can be arranged in these regions to be electrically connected with external devices. Details are not described here.
[0057] The present application cooperates the inner layer wiring unit 21, the outer layer wiring unit 22, and the connection wiring unit 23, especially the connection wiring unit 23 through the clever layout of the bypass, which conforms to the shape of the support 1. Not only is the multi-turn arrangement of the antenna structure on the same surface realized, but also the multiple wiring units are constructed into a complete coil structure. This arrangement optimizes the coil layout, reduces the number of stacked layers of the coil in the thickness direction of the antenna structure, thereby reducing the production cost of the antenna structure. At the same time, the coils are arranged on the same side, which helps to reduce signal transmission loss and improve the overall performance and working efficiency of the antenna.
[0058] In some embodiments, the support 1 is made of polyimide (PI) material, and the metal coil 2 is made of aluminum material. The use of aluminum material for the metal coil 2 not only effectively reduces the resistance of the coil and improves the current transmission efficiency, but also effectively reduces the cost and the overall weight of the antenna, to further meet the demand for thinness of electronic devices.
[0059] In this embodiment, the bonding of the aluminum foil and the PI is performed by using the traditional printed circuit board (PCB) manufacturing process, that is, the aluminum coil pattern is printed or etched on the PI substrate to form the metal coil 2. The specific process is not described here.
[0060] In some embodiments, the shape of the support 1 is not limited and can be set according to actual needs.
[0061] In one embodiment, with reference to Figure 1 , Figure 3 and Figure 5, the support 1 can be configured as a complete diaphragm structure. Specifically, the inner layer wiring unit 21, the connecting wiring unit 23, the outer layer wiring unit 22, the first external terminal 212 and the second external terminal 222 are all arranged on the surface of the diaphragm.
[0062] In another embodiment, referring to Figure 2 , Figure 4 and Figure 6 , the support 1 is configured as a ring structure with the first end connected to the second end.
[0063] Specifically, the ring structure is not limited to the traditional circular ring form. In addition to the standard circular ring, the ring structure can also be in the form of a rectangular ring (including right angles or rounded corners), an elliptical ring (with different long and short axes), and a polygonal ring (such as a triangle, a hexagon), etc. The design of the edge profile of the ring structure is also not limited. It can be set as an irregular shape such as a wavy edge or a gear-like shape.
[0064] Specifically, the inner layer wiring unit 21, the connecting wiring unit 23, the outer layer wiring unit 22, the first external terminal 212 and the second external terminal 222 are all distributed on the surface of the ring structure. Among them, the inner layer wiring unit 21 and the outer layer wiring unit 22 are arranged following the geometric profile of the ring structure, and their shapes are consistent with the profile of the support 1 to achieve a compact and efficient layout.
[0065] In yet another embodiment, referring to Figure 7 and Figure 8 , the support 1 includes a main body part 10 and a connecting part 11. The main body part 10 is a ring structure with the first end connected to the second end, and the connecting part 11 extends from one side of the main body part 10 to the inside of the main body part 10, and the connecting part 11 is in the form of a strip structure.
[0066] Specifically, the relevant ring structure of the main body part 10 refers to the content of the previous embodiments. The strip structure of the connecting part 11 also has various forms, and is not limited to the traditional rectangular shape. In addition to the standard rectangular shape, the strip structure can be in the form of a semicircle or an ellipse.
[0067] In this embodiment, referring to Figure 7 , the inner layer wiring unit 21 and the outer layer wiring unit 22 are located on the main body part 10 and are arranged following the geometric profile of the main body part 10, while the connecting wiring unit 23, the first external terminal 212 and the second connecting terminal are all located on the connecting part 11.
[0068] The connection part 11 can optimize the coil layout, effectively improve the performance of the metal coil 2 by increasing the wiring area of the inner layer wiring unit 21 and the outer layer wiring unit 22. Secondly, the reasonable layout of the connection part 11 can improve the recognition efficiency of the antenna structure. Finally, the setting of the connection part 11 can flexibly adapt to the structural characteristics of the external device, regardless of size, shape or interface type, so that the first external terminal 212 and the second external terminal 222 can be more conveniently electrically connected with the external device.
[0069] Further, with reference to Figure 7 , the first external terminal 212 and the second external terminal 222 are located at one end of the connection part 11 away from the main body part 10, and the direction in which the first external terminal 212 and the second external terminal 222 are arranged is perpendicular to the direction in which the connection part 11 extends.
[0070] The setting of the spacing direction perpendicular to the extension direction can better utilize the space at the end of the connection part 11 to meet the need to increase other external terminals, thereby realizing the complete function of the antenna structure, while also enabling the multiple external terminals to be relatively concentrated on one end of the connection part 11, facilitating electrical connection with external devices.
[0071] In some embodiments, with reference to Figures 1 to 4 , the inner layer wiring unit 21 includes an inner main body wiring 210 and a first branch wiring 211. The inner main body wiring 210 is wrapped around at least part of the support 1; and one end of the first branch wiring 211 is electrically connected to the inner main body wiring 210, and the other end of the first branch wiring 211 extends from the edge of the support 1 to the inside of the support 1 to form the first external terminal 212. It can be understood that in this embodiment, the first external terminal 212 is formed together with the inner main body wiring 210 and the first branch wiring 211 to form the inner layer wiring unit 21. Further, the outer layer wiring unit 22 includes an outer main body wiring 220 and a second branch wiring 221. The outer main body wiring 220 is wrapped around at least part of the support 1; and one end of the second branch wiring 221 is electrically connected to the outer main body wiring 220, and the other end of the second branch wiring 221 extends from the edge of the support 1 to the inside of the support 1 to form the second external terminal 222. It can be understood that in this embodiment, the second external terminal 222 is formed together with the outer main body wiring 220 and the second branch wiring 221 to form the outer layer wiring unit 22.
[0072] The application can effectively optimize the space utilization by setting the first branch wire 211 and the second branch wire 221. Specifically, the design of the first branch wire 211 and the second branch wire 221 reasonably utilizes the space inside the edge of the support 1 to the interior without affecting the electrical connection with the external device, and ingeniously saves the area of the support 1. In this way, not only the layout of the metal coil 2 is more compact, but also more space is reserved for other elements or structures, improving the integration of the overall design.
[0073] Secondly, the setting of the first branch wire 211 and the second branch wire 221 can enhance the performance of the metal coil 2. Specifically, through the ingenious layout of such branch wires, the effective wire area of the metal coil 2 is increased.
[0074] Finally, the setting of the first branch wire 211 and the second branch wire 221 can improve the connection flexibility and reliability of the antenna structure. Specifically, the first branch wire 211 and the second branch wire 221 form the first external connection end 212 and the second external connection end 222, respectively, and by designing the direction or length of the first branch wire 211 and the second branch wire 221, the different shapes of the support 1 are adapted, providing more choices and convenience for the connection of the metal coil 2 and the external device.
[0075] In some embodiments, continuing to refer to Figures 1 to 4 , the first branch wire 211 and the second branch wire 221 are arranged in parallel. Such a setting further optimizes the space utilization on the surface of the support 1 by forming an orderly line layout, and can also reduce interference between different branch wires by parallel arrangement.
[0076] In one embodiment, referring to Figures 1 to 4 , when the support 1 adopts a simple ring structure design or an integral membrane, after the inner main wire 210 is arranged following the geometric contour of the support 1, the first external connection end 212 is extended to the inside of the support 1 through the first branch wire 211. After the outer main wire 220 is arranged following the geometric contour of the support 1, the first external connection end 212 is extended to the opposite inside of the support 1 through the second branch wire 221.
[0077] In another embodiment, referring to Figure 7 , the support 1 adopts a design combining a ring structure main body 10 and a strip structure connecting part 11. The inner main wire 210 and the outer main wire 220 are located on the main body 10, and the inner main wire 210 and the outer main wire 220 are arranged following the geometric contour of the main body 10. The first branch wire 211 and the second branch wire 221 are arranged on the connecting part 11, and the extension direction of the first branch wire 211 and the second branch wire 221 is consistent with the extension direction of the connecting part 11.
[0078] Further, continuing to refer toFigure 7 The first external terminal 212 extends to the end of the connection portion 11 away from the main body portion 10 through the first branch trace 211, and the second external terminal 222 extends to the end of the connection portion 11 away from the main body portion 10 through the second branch trace 221.
[0079] In some embodiments, the application does not strictly limit the form of the shape of the connection trace unit 23. It can be either a metal trace or a specific area for connection with external devices. This area is different from the first external terminal 212 and the second external terminal 222 described above. The core function of the connection trace unit 23 is to realize reliable connection of the inner trace unit 21 and the outer trace unit 22, while ensuring the integrity and functionality of the entire antenna function.
[0080] In one embodiment, referring to Figure 5 and Figure 6 , the connection trace unit 23 can be represented as a connection area, which is the third external terminal 25 mentioned below. For the sake of understanding, this area is referred to as the third external terminal 25 in this embodiment. The two ends of the third external terminal 25 are electrically connected to the inner trace unit 21 and the outer trace unit 22, respectively, to form a complete antenna structure.
[0081] In another embodiment, the connection trace unit 23 is arranged to form a holding area 230 with an opening, and the second external terminal 222 is located in the holding area 230. At least part of the second branch trace 221 is located in the opening, and the first external terminal 212 is away from the holding area 230.
[0082] Specifically, the contour of the path of the connection trace unit 23 is a smooth transition structure, which is similar to a sine (sin) or cosine (cos) function curve, or similar to a partial sine (sin) or cosine (cos) function curve. The concave part of the curve forms the holding space described above.
[0083] Specifically, the contour of the path of the connection trace unit 23 is a regular shape or irregular shape formed by a plurality of straight traces with right angles.
[0084] Further, referring to Figures 1 to 4 and Figure 7 , the connection trace unit 23 includes a first connection line 231, an intermediate connection line 232, and a second connection line 233. The two ends of the intermediate connection line 232 are connected to the first connection line 231 and the second connection line 233, respectively. The end of the first connection line 231 away from the intermediate connection line 232 is electrically connected to the inner main body trace 210, and the end of the second connection line 233 away from the intermediate connection line 232 is electrically connected to the outer main body trace 220. The first connection line 231, the intermediate connection line 232, and the second connection line 233 form a holding space.
[0085] Further, the first connection line 231 and the second connection line 233 are both arranged in parallel with the first branch trace 211 or the second branch trace 221. It is to be noted that the present application does not limit the intermediate connection line 232. The intermediate connection line 232 can be configured as a straight trace perpendicular to the first connection line 231 or the second connection line 233, or can be configured as a plurality of straight traces in different directions for forming the contour shape of the part of the support 1.
[0086] For example, referring to Figures 1 to 4 , when the support 1 is configured as a ring structure or a structure of an integral membrane, the first connection line 231 or the second connection line 233 extends in the first direction and both are arranged in parallel in the second direction, and the intermediate connection line 232 extends in the second direction. The three form the aforementioned accommodation space and are used to accommodate the second external connection end 222.
[0087] For example, referring to Figure 7 , when the support 1 is configured as the aforementioned ring structure main body 10 and the strip-shaped connection part 11, the first connection line 231, the second connection line 233 and the intermediate connection line 232 are all located on the connection part 11, and the first connection line 231 and the second connection line 233 are in the same extension direction as the connection part 11. Such a layout not only enables efficient connection of the inner layer trace unit 21 and the outer layer trace unit 22, but also further optimizes the space of the second surface 100b of the connection part 11 by forming a neat and orderly layout of the lines.
[0088] Further, the intermediate connection line 232 in the present embodiment is configured as a plurality of traces in different directions to adapt to the shape of the end of the connection end and meet the overall circumnavigation of the empty connection trace unit 23.
[0089] In some embodiments, referring to Figure 3 and Figure 4 , the metal coil 2 further includes a plurality of third external connection ends 25 electrically connected with the metal coil 2. The third external connection ends 25 are located on any one or more of the outer layer trace unit 22, the inner layer trace unit 21 and the connection trace unit 23.
[0090] Specifically, the third external connection end 25 provides additional electrical connection for the metal coil 2, enhancing the flexibility of signal transmission. The third external connection end 25 is usually used for grounding to provide a stable reference potential and shield signal interference. The setting of the grounding external connection end helps to reduce electromagnetic interference (EMI) and improve the signal integrity and communication quality of the antenna.
[0091] For example, referring to Figure 7The third external terminal 25 is located between the first external terminal 212 and the second external terminal 222 and is spaced apart from both. This arrangement facilitates unified management and connection operation of each connection part 11 of the metal coil 2, improving the convenience and efficiency of connection.
[0092] In some embodiments, referring to Figure 3 and Figure 4 The metal coil 2 further comprises a third branch trace 24, one end of which is electrically connected to the intermediate connection line 232. The other end of the third branch trace 24 extends from the intermediate connection line 232 in a direction close to the first external terminal 212 or the second external terminal 222 to form a third external terminal 25.
[0093] The arrangement of the third branch trace 24 not only increases the number of connection points and improves connection flexibility, but also facilitates connection with more external devices. It can also further optimize space utilization, making the antenna structure layout compact. At the same time, the third branch trace 24 allows multiple external terminals to be concentrated in a certain area, facilitating connection with external devices and improving connection flexibility.
[0094] In some embodiments, referring to FIG. 3, the third branch trace 24 is arranged in parallel with the first branch trace 211 and the second branch trace 221. This arrangement allows multiple external terminals to be arranged in the same direction and expanded, facilitating connection with external devices at different positions and enhancing connection flexibility.
[0095] In some embodiments, continuing to refer to Figure 3 and Figure 4 The third branch trace 24 and the third external terminal 25 are both located within the accommodation region 230. This arrangement makes full use of the space inside the accommodation region 230, avoids occupying external space, and reserves more space for other elements or structures, improving the overall space utilization.
[0096] In some embodiments, the present application does not limit the width of the inner layer trace unit 21 and the outer layer trace unit 22. Preferably, the width of the inner layer trace unit 21 ranges from 0.8mm to 10mm. Preferably, the width of the outer layer trace unit 22 ranges from 0.8mm to 10mm.
[0097] It is worth noting that in the embodiment, the width of the inner layer trace unit 21 can be understood as the width of the aforementioned inner main trace 210, or refers to the width of the first branch trace 211. The width of the inner main trace 210 and the width of the first branch trace 211 can be the same or different. The width of the outer layer trace unit 22 can be understood as the width of the aforementioned outer main trace 220, or refers to the width of the second branch trace 221. The width of the outer main trace 220 and the width of the second branch trace 221 can be the same or different.
[0098] Further, the width of the inner layer trace unit 21 and the width of the outer layer trace unit 22 can be the same or different.
[0099] In some embodiments, the present application does not limit the spacing distance between the inner main trace 210 and the outer main trace 220. Smaller spacing can increase inductance, suitable for NFC application, improve communication efficiency and identification accuracy. Larger spacing reduces the coupling between coils, reduces interference, and is beneficial for multi-band or wide-band antenna design. The specific requirements can be set. Preferably, the spacing distance between the inner main trace 210 and the outer main trace 220 is in the range of 0.2mm to 3mm.
[0100] In some embodiments, referring to Figure 8 The antenna structure further comprises a reinforcing structure. The reinforcing structure 3 is arranged on the first surface 100a of the connecting part 11. The orthographic projection of the first outer connection end 212 and the second outer connection end 222 on the support 1 falls within the orthographic projection of the reinforcing structure 3 on the support 1. The arrangement of the reinforcing structure 3 enhances the mechanical strength and electrical stability of the connecting part 11, ensures the reliability of the ground connection, and provides additional electromagnetic shielding effect.
[0101] Further, at least part of the reinforcing structure 3 protrudes from the first surface 100a. Such arrangement can further enhance the mechanical strength and stability of the connecting part 11. Better resist external physical impact and vibration, reduce the risk of deformation of the connecting part 11 during use, thereby ensuring the electrical connection reliability of the connecting end. At the same time, the protruding part can also serve as an additional support point to help disperse stress and avoid damage caused by concentrated stress.
[0102] In some embodiments, the present application also provides an electronic device comprising a housing, a mainboard and an antenna structure as mentioned in any of the above embodiments. The antenna structure is designed by optimizing the coil layout and connection method, which effectively improves the signal transmission efficiency, reduces the interference, and reduces the production cost.
[0103] In the detailed description above, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration specific aspects in which the disclosure can be practiced. In this regard, directional terminology, such as "thickness," "upper," "lower," "top," "bottom," "inner," "outer," and the like, is used with reference to the orientation of the Figure(s) being described. Because components of the described devices can be positioned in a number of different orientations, the directional terminology can be used for purposes of explanation without
[0104] It is to be understood that the features of the various aspects of the disclosure described herein can be combined with each other, unless specifically noted otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items; similarly, "at least one of' includes any and all combinations of one or more of the associated listed items.
[0105] It should be understood that, unless otherwise specifically stated and limited, the terms "joined," "attached," "mounted," "connected," "linked," "fixed" and the like, as used herein, are to be construed broadly, for example, as either fixed connections, or as removable connections, or as integral connections; as either mechanical connections, or as electrical connections, or as communicative connections with each other; as either direct connections, or as indirect connections via intervening medium; as internal connections within two elements, or as interactive relationships between two elements, unless otherwise specifically noted and limited. The specific meaning of the above terms in the present context can be understood by those of ordinary skill in the art according to the specific circumstances.
[0106] Although terms such as "first," "second," and "third" can be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections are not limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein can also be called a second element, component, region, layer or section, without departing from the teachings of the examples. In addition, the terms "first," "second," are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of the technical features indicated. Thus, features defined with "first," "second" can explicitly or implicitly include at least one of the features. In the description herein, the meaning of "a plurality of' is at least two, for example, two, three, etc., unless specifically limited otherwise.
[0107] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present specification.
Claims
1. An antenna structure for securing with a housing, characterized by The application relates to a metal coil, comprising: a support, comprising a first surface and a second surface arranged along a thickness direction, the first surface being used for fixing with a shell; and a metal coil, located on the second surface of the support, comprising a first external connection end and a second external connection end respectively located at two ends; the metal coil further comprises an inner layer wiring unit, an outer layer wiring unit and a connecting wiring unit, two ends of the connecting wiring unit being connected with the inner layer wiring unit and the outer layer wiring unit respectively, and the outer layer wiring unit being arranged outside the inner layer wiring unit; wherein the inner layer wiring unit is arranged around at least part of the support, and one end of the inner layer wiring unit away from the connecting wiring unit forms the first external connection end; the outer layer wiring unit is arranged around at least part of the support, and one end of the outer layer wiring unit away from the connecting wiring unit forms the second external connection end; the first external connection end and the second external connection end are arranged at intervals, and the connecting wiring unit at least partially penetrates the gap between the first external connection end and the second external connection end.
2. The antenna structure of claim 1, wherein, the inner layer wiring unit comprises an inner main body wiring and a first branch wiring, the inner main body wiring is arranged around at least part of the support, and one end of the first branch wiring is electrically connected with the inner main body wiring, and the other end of the first branch wiring extends from the edge of the support to the inside of the support to form the first external connection end; and / or the outer layer wiring unit comprises an outer main body wiring and a second branch wiring, the outer main body wiring is arranged around at least part of the support, and one end of the second branch wiring is electrically connected with the outer main body wiring, and the other end of the second branch wiring extends from the edge of the support to the inside of the support to form the second external connection end.
3. The antenna structure of claim 2, wherein, the first branch wiring and the second branch wiring are arranged in parallel.
4. The antenna structure of claim 2, wherein, the connecting wiring unit is arranged to form a containing area with an opening, the second external connection end is located in the containing area, and at least part of the second branch wiring is located in the opening; the first external connection end is away from the containing area.
5. The antenna structure of claim 4, wherein, the connecting wiring unit comprises a first connecting line, an intermediate connecting line and a second connecting line, two ends of the intermediate connecting line are connected with the first connecting line and the second connecting line respectively, one end of the first connecting line away from the intermediate connecting line is electrically connected with the inner main body wiring, and one end of the second connecting line away from the intermediate connecting line is electrically connected with the outer main body wiring; so that the first connecting line, the intermediate connecting line and the second connecting line form the containing space; wherein, the first connecting line and the second connecting line are arranged in parallel with the first branch wiring or the second branch wiring.
6. The antenna structure of claim 5, wherein, the metal coil further comprises a plurality of third external connection ends, the third external connection ends are electrically connected with the metal coil, and the third external connection ends are located on the outer layer wiring unit; and / or the third external connection ends are located on the inner layer wiring unit; and / or the third external connection ends are located on the connecting wiring unit.
7. The antenna structure of claim 6, wherein, The metal coil further comprises a third branch trace, one end of the third branch trace is electrically connected with the intermediate connecting line, and the other end of the third branch trace extends from the intermediate connecting line in a direction close to the first external terminal or the second external terminal to form the third external terminal.
8. The antenna structure of claim 7, wherein, The third branch trace is arranged in parallel with the first branch trace and the second branch trace.
9. The antenna structure of claim 8, wherein, The third branch trace and the third external terminal are located in the accommodation region.
10. The antenna structure of claim 1, wherein, The support comprises a main body part and a connecting part; the main body part has a ring structure with the head connected to the tail; the connecting part extends from one side frame of the main body part to the inside of the main body part, and the connecting part has a strip structure; The outer layer trace unit and the inner layer trace unit are located on the main body part, and the connecting trace unit is located on the connecting part; the connecting trace unit, the first external terminal and the second external terminal are located on the connecting part; The first external terminal and the second external terminal are located at one end of the connecting part away from the main body part, and the first external terminal and the second external terminal are arranged in a direction perpendicular to the extending direction of the connecting part.
11. The antenna structure of claim 10, wherein, The inner layer trace unit comprises an inner main body trace and a first branch trace electrically connected, and the outer layer trace unit comprises an outer main body trace and a second branch trace electrically connected; the inner main body trace and the outer main body trace are located on the main body part, and the first branch trace and the second branch trace are located on the connecting part; The extending direction of the first branch trace and the second branch trace is the same as the extending direction of the connecting part.
12. The antenna structure of claim 10, wherein, The connecting trace unit comprises a first connecting line, an intermediate connecting line and a second connecting line, and the two ends of the intermediate connecting line are connected with the first connecting line and the second connecting line respectively; The first connecting line, the second connecting line and the intermediate connecting line are located on the connecting part, and the first connecting line and the second connecting line are the same as the extending direction of the connecting part.
13. The antenna structure of claim 10, wherein, The antenna structure further comprises a reinforcing structure, and the reinforcing structure is arranged on the first surface of the connecting part; The first external terminal and the second external terminal fall within the projection of the reinforcing structure on the support.
14. The antenna structure of claim 13, wherein, At least part of the reinforcing structure protrudes from the first surface.
15. The antenna structure of any of claims 1-13, wherein, The width of the inner layer trace unit ranges from 0.8mm to 10mm; and / or The width of the outer layer trace unit ranges from 0.8mm to 10mm; and / or The interval distance between the first external terminal and the second external terminal ranges from 0.2mm to 3mm.
16. An electronic device, comprising: The electronic device comprises a shell and the antenna structure according to any one of claims 1-15.