Flip phone
By optimizing the electrical connections and antenna layout of the radio broadcast signal processing module and the communication signal processing module in flip phones, the interference problem caused by multiplexing communication antennas was solved, and the quality of mobile communication and radio broadcast signals was improved.
Patent Information
- Application Number
- CN202520188709.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Reusing communication antennas causes significant interference to mobile communications, affecting communication performance.
In flip phones, the radio broadcast signal processing module and the communication signal processing module are electrically connected to the communication antenna near the hinge. Noise interference is reduced and the antenna layout is optimized through band-stop filters and hinge spring designs.
It reduces interference from flip phones to mobile communication signals, improving the quality of mobile communication signals and the reception of radio broadcast signals.
Smart Images

Figure CN223872307U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of mobile devices, and particularly relates to a flip phone. BACKGROUND
[0002] In order to reduce the space occupied by the antenna in the mobile device, a technical solution of multiplexing the communication antenna as the radio broadcast antenna can be used. However, the multiplexing of the communication antenna will cause greater interference to the mobile communication, resulting in poor communication effect and affecting the user experience.
[0003] Therefore, it is necessary to improve the prior art.
[0004] The above information is given as background information only to assist with an understanding of the present disclosure, and does not constitute admission that any of the above information is relevant, or that any of the above information is used as prior art, with respect to the present disclosure. CONTENT OF THE UTILITY MODEL
[0005] The embodiment of the present application provides a flip phone to solve the problem that multiplexing the communication antenna will cause greater interference to the mobile communication.
[0006] The embodiment of the present application provides a flip phone, comprising:
[0007] A mobile phone body, the mobile phone body comprising a first flip cover, a second flip cover and a hinge, the first flip cover and the second flip cover being rotationally connected through the hinge;
[0008] A communication device, the communication device being arranged on the first flip cover and / or the second flip cover, the communication device comprising a communication antenna, a radio broadcast signal processing module and a communication signal processing module, the communication antenna being at least partially arranged on one side of the hinge, the radio broadcast signal processing module and the communication signal processing module both being electrically connected to the part of the communication antenna close to the hinge.
[0009] In a possible implementation, the communication signal processing module comprises a first band-stop filter, an antenna matching circuit and a radio frequency chip connected in sequence, and the first band-stop filter is electrically connected to the communication antenna.
[0010] In a possible implementation, the insertion loss of the first band-stop filter in the radio broadcast band is greater than 70 dB, and the insertion loss of the first band-stop filter in the mobile communication frequency band is less than 0.5 dB.
[0011] In a possible implementation, the radio broadcast signal processing module comprises a low-noise amplifier and a radio broadcast signal processing chip connected in sequence, and the low-noise amplifier is electrically connected to the communication antenna.
[0012] In a possible implementation, the first flip cover is provided with a first grounding point, and the second flip cover is provided with a second grounding point;
[0013] The first grounding point is isolated from the second grounding point, and the communication antenna is electrically connected to the first grounding point or the second grounding point.
[0014] In a possible implementation, the first flip cover is provided with a first grounding point, and the second flip cover is provided with a second grounding point;
[0015] The mobile phone body further comprises a hinge spring, the hinge spring is arranged on the hinge shaft, and the first grounding point and the second grounding point are both electrically connected to the hinge spring.
[0016] In a possible implementation, the communication device further comprises a second band elimination filter, the second band elimination filter is electrically connected to the communication antenna, and the second band elimination filter is electrically connected to the hinge spring.
[0017] In a possible implementation, the second band elimination filter has an insertion loss greater than 70 dB in a radio broadcast band, and an insertion loss less than 0.5 dB in a mobile communication frequency band.
[0018] In a possible implementation, the communication antenna comprises a main diversity antenna and a diversity antenna, the main diversity antenna is used to transmit and receive a mobile communication signal, the diversity antenna is used to receive a mobile communication signal and a radio broadcast signal, the radio broadcast signal processing module and the communication signal processing module are both electrically connected to the diversity antenna, and the communication signal processing module is used to process the mobile communication signal received by the diversity antenna.
[0019] In a possible implementation, the diversity antenna is arranged on one side of the upper flip cover close to the hinge shaft or one side of the lower flip cover close to the hinge shaft, and the main diversity antenna is arranged on a side of the diversity antenna away from the hinge shaft.
[0020] Compared with the prior art, the application has the following beneficial effects:
[0021] The flip phone provided by the embodiment of the application makes the radio broadcast signal processing module and the communication signal processing module both electrically connected to the part of the communication antenna close to the hinge shaft, so that the mobile communication signal can be mainly received and transmitted away from the mobile communication signal, which not only reduces the interference of the flip phone itself on the mobile communication signal, but also reduces the noise caused by the radio broadcast signal processing module and the communication signal processing module multiplexing the part of the communication antenna close to the hinge shaft, and solves the problem that multiplexing the communication antenna can cause great interference to the mobile communication. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0023] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. In the following description, the same reference numerals represent the same parts.
[0024] Figure 1 The first structure schematic diagram of the communication device provided by the embodiments of the present application.
[0025] Figure 2 The second structure schematic diagram of the communication device provided by the embodiments of the present application.
[0026] In the figure: 1, communication antenna; 2, low noise amplifier; 3, radio broadcast signal processing chip; 4, first band elimination filter; 5, antenna matching circuit; 6, radio frequency chip; 7, second band elimination filter. DETAILED DESCRIPTION
[0027] In order to describe the possible application scenarios of the present application, the technical principles, the specific schemes that can be implemented, the purposes and effects that can be achieved, the following will be described in conjunction with the specific embodiments listed and the drawings. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, therefore only as an example, and cannot limit the protection scope of the present application.
[0028] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application.
[0030] The flip phone is provided by the embodiments of the present application to solve the problem that multiplexing communication antenna 1 will cause mobile communication to be greatly disturbed. The following will be described in conjunction with the drawings.
[0031] Please refer to Figure 1The embodiment of the present application provides a flip phone, which comprises a phone body and a communication device, the phone body comprises a first flip cover, a second flip cover and a rotating shaft, the first flip cover is rotationally connected with the second flip cover through the rotating shaft; the communication device is arranged on the first flip cover and / or the second flip cover, the communication device comprises a communication antenna 1, a radio broadcast signal processing module and a communication signal processing module, the communication antenna 1 is arranged at least partially on one side of the rotating shaft, and the radio broadcast signal processing module and the communication signal processing module are electrically connected with the part of the communication antenna 1 close to the rotating shaft.
[0032] By electrically connecting the radio broadcast signal processing module and the communication signal processing module with the part of the communication antenna 1 close to the rotating shaft, the mobile communication signal can be mainly received and transmitted away from the mobile communication signal, not only reducing the interference of the flip phone itself on the mobile communication signal, but also reducing the noise caused by multiplexing the radio broadcast signal processing module and the communication signal processing module on the part of the communication antenna 1 close to the rotating shaft, and solving the problem that multiplexing the communication antenna 1 can cause great interference to the mobile communication.
[0033] Please refer to Figure 1 The communication antenna 1 comprises a main diversity antenna and a diversity antenna, the main diversity antenna is used for receiving and transmitting the mobile communication signal, and the diversity antenna is used for receiving the mobile communication signal and the radio broadcast signal, and the radio broadcast signal processing module and the communication signal processing module are electrically connected with the diversity antenna. By multiplexing the radio broadcast signal processing module and the cellular diversity antenna, the mutual influence of the radio broadcast signal and the cellular signal can be reduced. In the embodiment, the diversity antenna is arranged on one side of the lower flip cover close to the rotating shaft, and the main diversity antenna is arranged on one side of the diversity antenna away from the rotating shaft. Since the signal noise at the rotating shaft of the flip phone is large, by arranging the main diversity antenna on one side of the diversity antenna away from the rotating shaft, the receiving and transmitting quality of the mobile communication signal can be improved.
[0034] Please refer to Figure 1 The communication signal processing module comprises a first band elimination filter 4, an antenna matching circuit 5 and a radio frequency chip 6 connected in sequence, the radio frequency chip 6 is used for processing at least part of the mobile communication signal, and the first band elimination filter 4 is electrically connected with the communication antenna 1. The radio broadcast signal processing module comprises a low noise amplifier 2 and a radio broadcast signal processing chip 3 connected in sequence, and the low noise amplifier 2 is electrically connected with the communication antenna 1. The low noise amplifier 2 is used for amplifying the low-frequency radio broadcast signal received by the communication antenna 1, and the radio broadcast signal processing chip 3 is used for converting the radio broadcast signal processed by the low noise amplifier 2 into a sound signal, so that the flip phone can play the radio broadcast audio.
[0035] Please refer to Figure 1The insertion loss of the first band-stop filter 4 in the radio broadcast band is greater than 70 dB, and the insertion loss of the first band-stop filter 4 in the mobile communication frequency band is less than 0.5 dB. In the embodiment, the frequency range of the radio broadcast is 87.5 Mhz-108 Mhz, and the communication frequency band of the cellular signal is greater than 600 Mhz. Since the insertion loss of the first band-stop filter 4 in the radio broadcast band is greater, and the insertion loss in the communication frequency band of the cellular signal is smaller, the cellular signal can pass through the first band-stop filter 4, and the radio broadcast signal is difficult to pass through the first band-stop filter 4, which is beneficial to improve the quality of the cellular signal.
[0036] Please refer to Figure 1 The first flip cover is provided with a first circuit board, and the first circuit board is provided with a first grounding point. The second flip cover is provided with a second circuit board, and the second circuit board is provided with a second grounding point. In the embodiment, the first grounding point is isolated from the second grounding point, and the communication antenna 1 is electrically connected to the first grounding point or the second grounding point. Since the first grounding point is isolated from the second grounding point, the radio broadcast signal processing module is only connected to the first grounding point of the first circuit board or the second grounding point of the second circuit board, and the frequency of the interference signal formed by the single first circuit board or the second circuit board is greatly different from the frequency of the radio broadcast signal, so the influence of the interference signal on the radio broadcast signal is small.
[0037] Please refer to Figure 2 In some embodiments of the application, the shaft is provided with a shaft spring, and the first grounding point and the second grounding point are connected to the shaft spring, that is, the first grounding point is in communication with the second grounding point. The communication device further comprises a second band-stop filter 7, which is electrically connected to the communication antenna 1 and is electrically connected to the shaft spring. The insertion loss of the second band-stop filter 7 in the radio broadcast band is greater than 70 dB, and the insertion loss of the second band-stop filter 7 in the mobile communication frequency band is less than 0.5 dB. By connecting the first grounding point and the second grounding point, the bandwidth of the diversity antenna in the mobile communication frequency band is improved, and the second band-stop filter 7 is used to prevent the interference signal of the radio broadcast signal from passing through, thereby reducing the interference signal from the shaft spring to the radio broadcast signal processing module through the grounding wire, and improving the radio broadcast listening effect.
[0038] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.
[0039] Finally, it should be noted that the above embodiments have been described in the specification and drawings of the application, but this does not limit the patent protection scope of the application. Any equivalent structure or equivalent process replacement or modification based on the essential concept of the application, using the content described in the specification and drawings of the application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the application.
Claims
1. A flip phone, characterized by, The utility model relates to a mobile phone, and particularly relates to a mobile phone with radio broadcast and mobile communication functions. The mobile phone body comprises a first cover, a second cover and a hinge, the first cover is connected with the second cover through the hinge; The communication device is arranged on the first cover and / or the second cover, and comprises a communication antenna (1), a radio broadcast signal processing module and a communication signal processing module, the communication antenna (1) is arranged on one side of the hinge at least partially, the radio broadcast signal processing module and the communication signal processing module are electrically connected with the part of the communication antenna (1) close to the hinge, the radio broadcast signal processing module is used for processing the radio broadcast signal received by the communication antenna (1), and the communication signal processing module is used for receiving the mobile communication signal received by the communication antenna (1).
2. The flip phone of claim 1, wherein, The communication signal processing module comprises a first band elimination filter (4), an antenna matching circuit (5) and a radio frequency chip (6) connected in sequence, and the first band elimination filter (4) is electrically connected with the communication antenna (1).
3. The flip phone of claim 2, wherein, The insertion loss of the first band elimination filter (4) in the radio broadcast wave band is greater than 70dB, and the insertion loss of the first band elimination filter (4) in the mobile communication frequency band is less than 0.5dB.
4. The flip phone of claim 1, wherein, The radio broadcast signal processing module comprises a low-noise amplifier (2) and a radio broadcast signal processing chip (3) connected in sequence, and the low-noise amplifier (2) is electrically connected with the communication antenna (1).
5. The flip phone of claim 1, wherein, The first cover is provided with a first grounding point, and the second cover is provided with a second grounding point; The first grounding point is isolated from the second grounding point, and the communication antenna (1) is electrically connected with the first grounding point or the second grounding point.
6. The flip phone of claim 1, wherein, The first cover is provided with a first grounding point, and the second cover is provided with a second grounding point; The mobile phone body further comprises a hinge spring, the hinge spring is arranged on the hinge, and the first grounding point and the second grounding point are both electrically connected with the hinge spring.
7. The flip phone of claim 6, wherein, The communication device further comprises a second band elimination filter (7), the second band elimination filter (7) is electrically connected with the communication antenna (1), and the second band elimination filter (7) is electrically connected with the hinge spring.
8. The flip phone of claim 7, wherein, The insertion loss of the second band elimination filter (7) in the radio broadcast wave band is greater than 70dB, and the insertion loss of the second band elimination filter (7) in the mobile communication frequency band is less than 0.5dB.
9. The flip phone of claim 1, wherein, The communication antenna (1) comprises a main diversity antenna and a diversity antenna, the main diversity antenna is used for transmitting and receiving mobile communication signals, the diversity antenna is used for receiving mobile communication signals and radio broadcast signals, the radio broadcast signal processing module and the communication signal processing module are both electrically connected with the diversity antenna, and the communication signal processing module is used for processing the mobile communication signals received by the diversity antenna.
10. The flip phone of claim 9, wherein, The diversity antenna is arranged on one side of the first cover close to the hinge or one side of the second cover close to the hinge, and the main diversity antenna is arranged on one side of the diversity antenna away from the hinge.