Combined antenna structure and mobile terminal
By installing onboard antennas on the circuit board of the mobile terminal and connecting them with the circuit board using frame antennas, the problem of high cost and poor compatibility of mobile terminal products in the prior art is solved, and high adaptability and low cost are achieved The combined antenna structure enhances structural strength and connection stability.
Patent Information
- Application Number
- CN202421021625.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the prior art, the addition of high-frequency band antennas for mobile terminal products requires redesigning a large number of component structures, resulting in high cost and poor compatibility, making it difficult to accommodate the second antenna in the internal compact space.
Using a combined antenna structure, the integration of two signal antennas is achieved by installing on-board antennas on the circuit board and connecting them with the tabs on the circuit board. The frame antenna is integrated with the frame as an insert and the frame. The design limit is Position the grooves to enhance the connection strength.
The integration of two signal antennas is achieved, which reduces space requirements and R&D costs, improves adaptability and structural strength, reduces layout difficulty, and enhances the connection strength between the frame and the antenna, avoids the risk of displacement or disengagement.
Smart Images
Figure CN222320490U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antennas, and in particular to a combined antenna structure and a mobile terminal. Background Art
[0002] With the rapid development of information technology, smart mobile terminal products have been widely used, such as tablets, which are favored by users. Traditional tablets only support one frequency band signal, mainly 2.4G, that is, the antenna installed inside is a 2.4 antenna. Usually, the antenna is fixedly installed in the plastic frame. In addition, miniaturization is the development trend of mobile terminal products such as tablets, which also leads to compact internal space. With the further development of communication technology, mobile terminal products that support dual signal frequencies (2.4G, 5.8G) have more powerful performance and are more popular with users. This means that it is necessary to add corresponding antennas to traditional products. Due to the compact internal space, it is unrealistic to directly add antennas to the internal space or frame position of traditional products. The solutions in the existing technology are mainly: redesign the frame structure and adapt the internal component layout to accommodate the second antenna, which makes the frames and other accessories of the previous and next generations of products not universal, and the compatibility is the first, resulting in increased design and manufacturing costs.
[0003] Therefore, the prior art needs to be improved. Utility Model Content
[0004] In view of this, the utility model provides a combined antenna structure and a mobile terminal, which are used to solve the problem in the prior art that it is inconvenient to add high-frequency band antennas to mobile terminal products, and a large number of component structures need to be redesigned, resulting in high costs.
[0005] In order to achieve one or part or all of the above-mentioned purposes or other purposes, the utility model proposes a combined antenna structure, including a frame, a frame antenna, a circuit board and a board-mounted antenna, the circuit board is located in the frame, the frame antenna is installed on the frame, the board-mounted antenna is fixedly installed on the circuit board, the circuit board is provided with a main feed plate and a ground feed plate, the board-mounted antenna is fixedly connected to the main feed plate, the main feed plate abuts against the main feed contact on the frame antenna, and the ground feed plate abuts against the ground feed contact on the frame antenna.
[0006] Preferably, the onboard antenna includes a front part and a back part, the front part is installed on the front side of the circuit board, the back part is installed on the back side of the circuit board, and both the front part and the back part are connected to the main feeding plate.
[0007] Preferably, the output frequency of the onboard antenna is higher than the output frequency of the frame antenna.
[0008] Preferably, the onboard antenna is a 5.8G antenna, and the frame antenna is a 2.4G antenna.
[0009] Preferably, the frame antenna is injection-molded as an insert integrally with the frame.
[0010] Preferably, the frame is a square frame, the frame antenna is in a curved shape, and the frame antenna is located at a corner of the frame.
[0011] Preferably, a hanging ear is provided on one side of the frame antenna, and a connecting hole is provided on the hanging ear.
[0012] Preferably, a plurality of limiting grooves are provided on the upper surface of the frame antenna, and the limiting grooves are filled by the frame.
[0013] Preferably, the cross section of the limiting groove is trapezoidal.
[0014] The utility model also provides a mobile terminal, comprising the above-mentioned combined antenna structure.
[0015] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0016] 1. By attaching the antenna to be added to the circuit board and utilizing the blank space near the main feed on the circuit board, the integration of the two antennas can be achieved without adjusting other structural parts, which has high adaptability and low R&D and manufacturing costs;
[0017] 2. In the preferred solution, the additional onboard antenna is divided into two parts and attached to the two sides of the circuit board respectively, which further reduces the space requirement and facilitates the layout of the onboard antenna;
[0018] 3. In the preferred solution, the output frequency of the onboard antenna is high, that is, the length of the onboard antenna is shorter than that of the frame antenna, which further reduces the difficulty of arranging the onboard antenna;
[0019] 4. In the preferred solution, the frame antenna is used as an insert and is integrally injection molded with the frame, which has strong integrity and does not require connectors. At the same time, the metal properties of the frame antenna can also be used to improve the structural strength of the frame.
[0020] 5. In a further preferred embodiment, the frame antenna is arranged at the corner of the frame which is most susceptible to impact damage, making the best use of the high strength and toughness of the frame antenna relative to plastic;
[0021] 6. In the preferred solution, a connection hole is designed on the frame antenna and applied to the mobile terminal to lock other components in the terminal. Compared with opening a threaded connection hole on the plastic frame, it has a lower failure risk;
[0022] 7. In the preferred embodiment, a limiting groove is provided on the frame antenna to allow plastic to flow in during injection molding, thereby increasing the connection strength between the plastic frame and the frame antenna and preventing the frame antenna from being displaced or separated from the frame. In particular, the limiting groove is designed to have a trapezoidal cross-section, which not only has a certain limiting effect on lateral displacement, but also forms a limiting effect along the direction of the groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] in:
[0025] Figure 1 This is a three-dimensional structural schematic diagram of a combined antenna structure according to an embodiment of the utility model;
[0026] Figure 2 for Figure 1 Magnified view at A in the middle;
[0027] Figure 3 for Figure 2 Schematic diagram of the structure after removing the border;
[0028] Figure 4 It is a rear view of the circuit board 3 in one embodiment of the utility model.
[0029] The description of the accompanying drawings is as follows: 1. frame, 2. frame antenna, 21. hanging ear, 211. connecting hole, 22. limiting groove, 3. circuit board, 31. main feed plate, 32. ground feed plate, 4. on-board antenna, 41. front part, 42. back part. DETAILED DESCRIPTION
[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0032] It is understood that the singular forms "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0033] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle" and the like is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the present utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, the above-mentioned part of the terms may be used to express other meanings in addition to being used to express orientation or positional relationship, for example, the term "upper" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances.
[0034] In addition, the terms "disposed", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0035] Reference Figures 1 to 4, an embodiment of the utility model provides a combined antenna structure, which is applied to mobile terminals such as mobile phones or tablets, including a frame 1, a frame antenna 2, a circuit board 3 and an onboard antenna 4; wherein the circuit board 3 is located in the frame 1, the frame antenna 2 is installed on the frame 1, and the onboard antenna 4 is fixedly installed on the circuit board 3, and the circuit board 3 is provided with a main feed contact 31 and a ground feed contact 32, and the onboard antenna 4 is fixedly connected to the main feed contact 31, the main feed contact 31 abuts against the main feed contact on the frame antenna 2, and the ground feed contact 32 abuts against the ground feed contact on the frame antenna 2. The combined antenna structure provided by the utility model is based on the existing antenna structure of mobile terminal products. By adding an onboard antenna 4 to the circuit board 3 and arranging a second signal antenna at the edge of the circuit board 3, the integration of the second signal antenna can be realized without changing the original frame structure, and the space requirement for the mobile terminal product is low, and the product structure changes little. When the mobile terminal product is updated, the compatibility of product accessories such as the frame is high, and the R&D and manufacturing costs are low.
[0036] In some optional embodiments, such as Figures 1 to 4 As shown, the onboard antenna 4 includes a front part 41 and a back part 42, the front part 41 is installed on the front of the circuit board 3, and the back part 42 is installed on the back of the circuit board 3. The front part 41 and the back part 42 are both fixedly connected to the main feed patch. When working, the required frequency wavelength is coupled out through the front part 41 and the back part 42. Specifically, the onboard antenna 4 is made of copper foil, and is attached to the circuit board 3 by attachment. By setting it on both sides of the circuit board 3, the blank position of the circuit board 3 is fully utilized, and the space requirement of the onboard antenna 4 on the circuit board 3 is reduced.
[0037] In some optional embodiments, the output frequency of the onboard antenna 4 is higher than that of the frame antenna 2, that is, the length of the onboard antenna 4 is shorter than that of the frame antenna 2. Through this design, the space requirement of the onboard antenna 4 is further reduced, which is conducive to the miniaturization of the product. As an example, the output frequency of the onboard antenna 4 is 5.8G, and the output frequency of the frame antenna 2 is 2.4G; in this way, the frame 1 including the frame antenna 2 of the 2.4G frequency band can be used in products that do not need to support 5.8G, and can also be used in products that support 5.8G. The compatibility of product accessories is high, which is conducive to reducing the research and development and production costs of products.
[0038] In some optional embodiments, such as Figures 1 to 3 As shown, the frame antenna 2 is integrally injection molded with the frame 1 as an insert, and the structure is stable. At the same time, the metal properties of the frame antenna 2 are used to increase the structural strength of the frame 1. More specifically, in some optional embodiments, such as Figures 1 to 3As shown, the frame 1 is a square frame, the frame antenna 2 is curved, and the frame antenna 2 is located at the corner of the frame 1; the corner position of the square frame is most susceptible to impact damage, and the frame antenna 2 is set at this position to maximize the high strength and high toughness of the frame antenna 2 as a metal part.
[0039] In some optional embodiments, such as Figures 1 to 3 As shown, a hanging ear 21 is provided on one side of the frame antenna 2, and a connecting hole 211 is provided on the hanging ear 21 for fixing other components when assembling a mobile terminal product.
[0040] In some optional embodiments, such as Figure 3 As shown, the upper surface of the frame antenna 2 is provided with a plurality of limiting grooves 22, and after the frame 1 is injection molded, the limiting grooves 22 are filled with the frame 1. Further, in some preferred embodiments, the cross section of the limiting groove 22 is a trapezoid, and the narrow end of the limiting groove 22 is a glue inlet.
[0041] Another embodiment of the present invention further provides a mobile terminal, comprising the above-mentioned combined antenna structure.
[0042] The combined antenna structure and mobile terminal provided by the embodiments of the present utility model have the following beneficial effects:
[0043] 1. By attaching the antenna to be added to the circuit board 3 and utilizing the blank space on the circuit board 3, the integration of two signal antennas can be realized based on the existing single signal antenna product without adjusting other structural parts, which has high adaptability and low R&D and manufacturing costs;
[0044] 2. In the preferred solution, the additional onboard antenna 4 is divided into two parts and respectively attached to the two sides of the circuit board 3, which further reduces the space requirement and facilitates the layout of the onboard antenna 4;
[0045] 3. In the preferred solution, the output frequency of the onboard antenna 4 is high, that is, the length of the onboard antenna 4 is shorter than that of the frame antenna 2, which further reduces the difficulty of arranging the onboard antenna 4;
[0046] 4. In the preferred embodiment, the frame antenna 2 is integrally injection molded with the frame 1 as an insert, has strong integrity, and does not require connectors. At the same time, the metal properties of the frame antenna 2 can also improve the structural strength of the frame 1;
[0047] 5. In a further preferred embodiment, the frame antenna 2 is arranged at the corner of the frame 1 which is most susceptible to impact damage, making the most of the high strength and high toughness of the frame antenna 2 relative to plastic;
[0048] 6. In the preferred solution, a connection hole 211 is designed on the frame antenna 2 and applied to the mobile terminal to lock other components in the terminal. Compared with opening a threaded hole on the plastic frame 1, it has a lower risk of failure;
[0049] 7. In the preferred embodiment, a limiting groove 22 is provided on the frame antenna 2 to allow plastic to flow in during injection molding, thereby increasing the connection strength between the plastic frame 1 and the frame antenna 2 and preventing the frame antenna 2 from being displaced relative to or separated from the frame 1. In particular, the limiting groove 22 is designed to have a trapezoidal cross-section, which not only has a certain limiting effect on lateral displacement, but also has a limiting effect along the groove direction.
[0050] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.
Claims
1. A combined antenna structure, characterized in that: It includes a frame, a frame antenna, a circuit board and a board-mounted antenna, the frame antenna is installed on the frame, the board-mounted antenna is fixedly installed on the circuit board, the circuit board is located in the inner circle of the frame, a main feed plate and a ground feed plate are provided on the circuit board, the board-mounted antenna is fixedly connected to the main feed plate, the main feed plate abuts against the main feed contact on the frame antenna, and the ground feed plate abuts against the ground feed contact on the frame antenna.
2. The combined antenna structure according to claim 1, characterized in that: The onboard antenna includes a front part and a back part, the front part is installed on the front side of the circuit board, and the back part is installed on the back side of the circuit board, and both the front part and the back part are connected to the main feeding plate.
3. The combined antenna structure according to claim 1, characterized in that: The output frequency of the onboard antenna is higher than the output frequency of the frame antenna.
4. The combined antenna structure according to claim 3, characterized in that: The onboard antenna is a 5.8G antenna, and the frame antenna is a 2.4G antenna.
5. The combined antenna structure according to claim 1, characterized in that: The frame antenna is used as an insert and is integrally injection-molded with the frame.
6. The combined antenna structure according to claim 5, characterized in that: The frame is square, the frame antenna is curved, and the frame antenna is located at the corner of the frame.
7. The combined antenna structure according to claim 5, characterized in that: A hanging ear is provided on one side of the frame antenna, and a connecting hole is provided on the hanging ear.
8. The combined antenna structure according to claim 5, characterized in that: A plurality of limiting grooves are arranged on the upper surface of the frame antenna, and the limiting grooves are filled by the frame.
9. The combined antenna structure according to claim 8, characterized in that: The cross section of the limiting groove is trapezoidal.
10. A mobile terminal, characterized in that: A combined antenna structure comprising any one of claims 1 to 9.