Anti-interference extension connecting line for microphone of interphone
By setting up the shielding system of the conversion end of the connection and the expansion cable in the intercom micomosto, the problem of being easily interfered in the special scenarios in special scenarios in special scenarios, and achieved clearer and stable audio transmission in special scenarios.
Patent Information
- Application Number
- CN202421072396.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In some special scenarios, the intercom headset extension cable is susceptible to interference radio waves, resulting in unclear transmission sound or noise and intermittent problems.
A anti -interference microphone microphone is designed to extend the connection cable. By setting up a shielding seat on the rotor end, and setting the shielding layer in the telescopic cable, an electrical connection is formed to enhance the anti -interference ability of the shielding system.
Effectively improved the anti -interference ability to extend the connection line, avoided the sound or intermittent sound of the headset transmission, and enhanced the user experience and market competitiveness.
Smart Images
Figure CN222422685U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of POGO PIN connecting wires used in intercoms, in particular to an anti-interference intercom microphone extension connecting wire. Background Art
[0002] Walkie-talkies can be used for conversations without any network support and without incurring phone charges. They are suitable for relatively fixed and frequent conversations. They are composed of a housing, a host, a battery, a belt clip, a charger, an antenna, etc. There are three types of walkie-talkies: analog walkie-talkies, digital walkie-talkies, and IP walkie-talkies.
[0003] In some special occasions, such as military scenarios, field operation scenarios, security scenarios, etc., it is often necessary to transfer the sound of the walkie-talkie to a dedicated headset to facilitate listening to or issuing commands.
[0004] Intercom headsets are mainly used for audio input and output of radio communication equipment such as intercoms. Different headsets can be installed according to different usage environments and purposes. Intercom headsets are actually extended and integrated functions such as PTT (talk button), MIC (microphone) and (SPK) headphones, which makes the use of intercoms more convenient and easy to use. When using, just take out the headphone jack plug and insert the headphone plug, fix it to the collar with a wire clip, and put the headphone in the ear. In order to wear the headset better, an extension cord is usually required.
[0005] The extension cord is convenient, but it can also cause more interference. For example, due to the increase in radio equipment, many scenes have interfering radio waves, which can easily cause certain interference to the headset extension cord of the walkie-talkie, resulting in unclear transmitted sound, more noise, or even intermittent sound. In addition, the connection between the extension cord's connecting end and the walkie-talkie is also susceptible to radio wave interference.
[0006] Therefore, how to provide an anti-interference intercom microphone extension cable so that the transmission of the intercom headset is not affected and clear and accurate voice information can be transmitted is a technical problem that needs to be solved. Utility Model Content
[0007] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.
[0008] The utility model provides an anti-interference intercom microphone extension connection line, comprising an adapter terminal and an earphone terminal, and a telescopic cable respectively connected to the two terminals, wherein the telescopic cable, the adapter terminal and the earphone terminal are respectively electrically connected, the adapter terminal can be fixedly connected to a corresponding adapter seat of an external intercom and electrically connected to the intercom; the earphone terminal can be fixedly connected to a corresponding connection seat of an external earphone and electrically connected to the earphone, thereby forming an extension connection line for transmitting electrical signals between the intercom and the earphone; the adapter terminal is provided with a shielding seat, the telescopic cable is provided with a shielding layer, and an electrical connection is formed between the shielding seat and the shielding layer.
[0009] As a further solution of the utility model: the adapter end is provided with a shell, one side of the shell is connected to the telescopic cable, and the other side thereof is provided with a groove, and the shielding seat is fixedly connected to the bottom of the groove.
[0010] As a further solution of the utility model: the adapter terminal is also provided with a signal conductive seat, the telescopic cable is provided with a signal wire, and the signal wire and the signal conductive seat are fixedly connected to each other to form an electrical connection.
[0011] As a further solution of the utility model: the signal conductive seat is fixedly connected to the bottom of the groove, and the signal conductive seat is provided with a plurality of conductive terminals, and the conductive terminals are used to electrically connect to the conductive clips in the external intercom adapter.
[0012] As a further solution of the utility model: a snap-on elbow is provided at one end of the adapter terminal, and the snap-on elbow can be snapped onto the adapter socket of the external intercom, and the shell of the adapter terminal is embedded in the intercom adapter socket, so that the shielding seat abuts against the shielding clip in the intercom adapter socket and forms an electrical connection.
[0013] As a further solution of the utility model: the other end of the adapter terminal is also provided with a locking through hole and a locking bolt, the locking bolt is inserted into the locking through hole, and forms a threaded connection with the corresponding threaded hole of the intercom adapter, thereby locking the adapter terminal in the intercom adapter.
[0014] As a further solution of the utility model: the signal conductor is provided with a first conductor, a second conductor and a third conductor, the shielding layer is provided with a first shield, a second shield and a third shield, the first shielding sleeve is provided on the periphery of the first conductor to form a shielding layer, the second shielding sleeve is provided on the periphery of the second conductor to form a shielding layer, and the third shielding sleeve is provided on the periphery of the third conductor to form a shielding layer.
[0015] As a further solution of the utility model: the shielding layer is also provided with a fourth shield, the first wire, the second wire and the third wire are cross-wound with each other to form an integral wire; the fourth shield is sleeved on the integral wire through a winding process, or is sleeved on the integral wire through a weaving process.
[0016] As a further solution of the utility model: the telescopic cable is also provided with a tensile yarn, and the tensile yarn is synchronously cross-wound with the overall conductor to form a tensile conductor.
[0017] As a further solution of the utility model: the telescopic cable is also provided with a rubber sheath, and the rubber sheath is sleeved on the outer periphery of the tensile wire, so as to form a protective soft rubber shell for the extension connecting wire.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] 1. By setting a shielding seat at the adapter end of the extended connecting line, setting a shielding layer in the telescopic cable, and connecting the shielding seat and the shielding layer to be electrically connected, a stronger shielding system can be formed, thereby improving the anti-interference ability of the connecting line.
[0020] 2. A groove is also set on one side of the adapter terminal, and the shielding seat and the signal conductive seat are respectively set at the bottom of the groove, so that when the adapter terminal is connected to the intercom adapter, the shielding seat and the signal conductive seat can be inserted into the adapter, thereby improving the anti-interference ability between the adapter terminal and the intercom.
[0021] 3. An independent shielding layer is set for each type of wire to further improve the anti-interference ability of the signal wire and prevent mutual interference between the wires.
[0022] Therefore, after the above-mentioned improvements, the utility model can provide an anti-interference walkie-talkie microphone extension cable, so that the adapter end can be firmly connected to the walkie-talkie, and at the same time it can also improve the anti-interference ability of the cable, avoiding noise or intermittent sound transmitted by the headset, further improving the user experience and enhancing market competitiveness.
[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] 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 labor.
[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0026] Figure 2 It is a structural schematic diagram of the transfer terminal of the utility model;
[0027] Figure 3 It is a structural schematic diagram of the groove of the utility model;
[0028] Figure 4 It is a cross-sectional schematic diagram of the telescopic cable of the utility model;
[0029] Figure 5 It is a cross-sectional schematic diagram of the shielding layer of the utility model.
[0030] The reference numerals and names in the figures are as follows:
[0031] 10 adapter terminal; 11 housing; 12 groove; 13 shielding seat; 14 signal conductive seat; 15 conductive terminal; 16 snap elbow; 17 locking through hole; 18 locking bolt; 20 telescopic cable; 21 tensile yarn; 22 rubber sheath; 30 signal wire; 31 first wire; 32 second wire; 33 third wire; 40 shielding layer; 41 first shield; 42 second shield; 43 third shield; 44 fourth shield; 50 headset terminal. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] See also Figures 1 to 5In an embodiment of the utility model, an anti-interference walkie-talkie microphone extension cable includes a transfer terminal 10 and an earphone terminal 50, and a telescopic cable 20 respectively connecting the two terminals, wherein the telescopic cable 20, the transfer terminal 10 and the earphone terminal 50 are respectively electrically connected, and the transfer terminal 10 can be fixedly connected to a corresponding transfer socket of an external walkie-talkie and electrically connected to the walkie-talkie; the earphone terminal 50 can be fixedly connected to a corresponding connection socket of an external earphone and electrically connected to the earphone, thereby forming an extension cable for transmitting audio signals or control signals between the walkie-talkie and the earphone; the transfer terminal 10 is provided with a shielding seat 13, and the telescopic cable 20 is provided with a shielding layer 40, and an electrical connection is formed between the shielding seat 13 and the shielding layer 40, thereby improving the anti-interference ability of the extension cable.
[0034] Specifically, due to the relatively large size of the walkie-talkie, it is usually not convenient to use it by hand in some special scenarios. Therefore, it is necessary to consider transmitting the audio signal or control signal of the walkie-talkie to a convenient place for use, and at the same time transmit it to the headset. During intense exercise, it is necessary to ensure that the connection between the extension cable and the walkie-talkie is stable, and at the same time, it is also necessary to ensure that the extended cable does not introduce more interference, causing noise or intermittent sound in the headset.
[0035] Therefore, it is necessary to set a transfer terminal 10 on the extension cable to be pluggable and fixedly connected to the transfer socket of the external intercom. At the same time, in order to improve the anti-interference effect of the extension cable, a shielding seat 13 can be set in the transfer terminal 10, and the corresponding shielding access terminal in the intercom transfer socket is used for connection and electrical connection, so that the shielding layer 40 of the extension cable can be connected with the shielding layer 40 of the intercom, thereby further enhancing the shielding effect and improving the anti-interference ability.
[0036] Secondly, the headset end 50 of the extension cable can be directly installed and produced, or it can be set as a conductive buckle that is easy to plug and unplug, so as to facilitate the connection of headsets of different models and functions. Figure 1 As shown, the shape of a spiral spring is adopted to improve the retractability of the extension cable, so that the user can maintain the stability of the extension cable during intense activities such as running or working.
[0037] like Figure 2 and Figure 3As shown, preferably, the adapter terminal 10 is also provided with a signal conductive seat 14, and the telescopic cable 20 is provided with a signal wire 30, and the signal wire 30 and the signal conductive seat 14 are fixedly connected to each other to form an electrical connection. The adapter terminal 10 is provided with a shell 11, one side of the shell 11 is connected to the telescopic cable 20, and the other side thereof is provided with a groove 12, and the shielding seat 13 is fixedly connected to the bottom of the groove 12. The signal conductive seat 14 is fixedly connected to the bottom of the groove 12, and the signal conductive seat 14 is provided with a plurality of conductive terminals 15, and the conductive terminals 15 are used to electrically connect to the conductive clips in the external intercom adapter.
[0038] Specifically, one side of the adapter terminal 10 can be provided in the shape of a groove 12, and the corresponding part of the adapter seat of the intercom can be provided in the shape of a protrusion (not shown in the figure), so that the adapter terminal 10 is inserted into the adapter seat of the intercom, so that the groove 12 can cooperate with the protrusion to form a relatively closed connection. That is, the side walls around the groove 12 can be sleeved on the adapter seat of the intercom to form a cover buckle for the adapter seat, which can not only improve the stability of the connection, but also further enhance the anti-interference ability.
[0039] Secondly, the signal conductive seat 14 and the shielding seat 13 are preferably protruded from the groove 12 by a certain height, and the corresponding walkie-talkie adapter is also provided with corresponding recessed holes for accommodating the signal conductive seat 14 and the shielding seat 13, which can further enhance the connection stability and anti-interference ability.
[0040] like Figures 1 to 3 As shown, preferably, one end of the adapter terminal 10 is provided with a buckle elbow 16, and the buckle elbow 16 can be buckled to the adapter seat of the external intercom, and the housing 11 of the adapter terminal 10 is embedded in the intercom adapter seat, so that the shielding seat 13 abuts against the shielding clip in the intercom adapter seat and forms an electrical connection. The other end of the adapter terminal 10 is also provided with a locking through hole 17 and a locking bolt 18, and the locking bolt 18 is inserted into the locking through hole 17 and forms a threaded connection with the corresponding threaded hole of the intercom adapter seat, so as to lock the adapter terminal 10 in the intercom adapter seat.
[0041] Specifically, in order to further improve the connection stability between the adapter terminal 10 and the intercom, a buckle elbow 16 can be provided, and a corresponding buckle hole (not shown in the figure) is provided at the corresponding position of the intercom, so that the buckle elbow 16 can be inserted into the buckle hole, thereby forming a more stable connection. At the other end, in order to facilitate taking and placing, a locking bolt 18 can also be provided. Similarly, a threaded hole (not shown in the figure) is provided at the corresponding position of the intercom adapter, so that the nut of the locking bolt 18 can be rotated to screw the stud of the locking bolt 18 into the threaded hole to achieve a stable stud connection.
[0042] like Figure 4 and Figure 5 As shown, preferably, the signal wire 30 is provided with a first wire 31, a second wire 32 and a third wire 33, and the shielding layer 40 is provided with a first shield 41, a second shield 42 and a third shield 43. The first shield 41 is sleeved on the periphery of the first wire 31 to form the shielding layer 40, the second shield 42 is sleeved on the periphery of the second wire 32 to form the shielding layer 40, and the third shield 43 is sleeved on the periphery of the third wire 33 to form the shielding layer 40. The shielding layer 40 is further provided with a fourth shield 44. The first wire 31, the second wire 32 and the third wire 33 are intertwined and twisted to form an integral wire; the fourth shield 44 is sleeved on the integral wire by a winding process, or is sleeved on the integral wire by a braiding process.
[0043] Specifically, multiple types of wires with multiple functions can be arranged inside the telescopic cable 20, such as wires for the left earphone, wires for the right earphone, wires for the call button, wires for the silent button, etc., and independent shielding layers 40 can be arranged for different wires. Different wires may transmit different electrical signals at different times, so that the independent shielding layers 40 can shield them and enhance the anti-interference ability. At the same time, another shielding layer 40 can be arranged on the overall periphery of the multiple wires to further enhance the anti-interference ability. The shielding layer 40 can be formed by winding a foil conductor such as aluminum foil or copper foil, or it can be formed by braiding a wire conductor such as aluminum wire or copper wire.
[0044] like Figure 5 As shown, preferably, the telescopic cable 20 is further provided with a tensile yarn 21, and the tensile yarn 21 is synchronously cross-wound with the overall conductor to form a tensile conductor. The telescopic cable 20 is also provided with a rubber sheath 22, and the rubber sheath 22 is sleeved on the outer periphery of the tensile conductor to form a protective soft rubber shell for the extended connecting line.
[0045] Specifically, in order to improve the tensile strength of the connecting wire and extend its service life, a tensile yarn 21 can be arranged inside the cable, preferably synchronously wound with the conductor, so as to improve its tensile strength and avoid the conductor being broken during violent movements. At the same time, a rubber sheath 22 can be arranged at the outermost part of the connecting wire, and the rubber sheath 22 has a certain elasticity, which can prevent the conductor from being bent and broken. At the same time, the rubber sheath 22 can also protect the internal conductor and the shielding layer 40, and enhance the service life of the connecting wire.
[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.
Claims
1. An anti-interference intercom microphone extension cable, characterized in that: The invention comprises a transfer terminal (10), an earphone terminal (50), and a telescopic cable (20), wherein the telescopic cable (20), the transfer terminal (10), and the earphone terminal (50) are electrically connected to each other, the transfer terminal (10) can be fixedly connected to a corresponding transfer seat of an external intercom, and is electrically connected to the intercom; the earphone terminal (50) can be fixedly connected to a corresponding connection seat of an external earphone, and is electrically connected to the earphone, thereby forming an extended connection line for transmitting electrical signals between the intercom and the earphone; the transfer terminal (10) is provided with a shielding seat (13), the telescopic cable (20) is provided with a shielding layer (40), and an electrical connection is formed between the shielding seat (13) and the shielding layer (40).
2. The anti-interference intercom microphone extension cable according to claim 1, characterized in that: The adapter terminal (10) is provided with a shell (11), one side of the shell (11) is connected to the telescopic cable (20), and the other side thereof is provided with a groove (12), and the shielding seat (13) is fixedly connected to the bottom of the groove (12).
3. The anti-interference intercom microphone extension cable according to claim 2, characterized in that: The adapter terminal (10) is also provided with a signal conductive seat (14), and the telescopic cable (20) is provided with a signal conductor (30), and the signal conductor (30) and the signal conductive seat (14) are fixedly connected to each other to form an electrical connection.
4. The anti-interference intercom microphone extension cable according to claim 3, characterized in that: The signal conductive seat (14) is fixedly connected to the bottom of the groove (12), and the signal conductive seat (14) is provided with a plurality of conductive terminals (15), and the conductive terminals (15) are used to electrically connect to the conductive clips in the external intercom adapter.
5. The anti-interference intercom microphone extension cable according to claim 2, characterized in that: One end of the adapter terminal (10) is provided with a snap-on elbow (16), which can be snap-connected to the adapter seat of an external intercom, and the housing (11) of the adapter terminal (10) is embedded in the intercom adapter seat, so that the shielding seat (13) abuts against the shielding clip in the intercom adapter seat and forms an electrical connection.
6. The anti-interference intercom microphone extension cable according to claim 5, characterized in that: The other end of the adapter terminal (10) is also provided with a locking through hole (17) and a locking bolt (18); the locking bolt (18) is inserted into the locking through hole (17) and forms a threaded connection with a corresponding threaded hole of the intercom adapter, thereby locking the adapter terminal (10) in the intercom adapter.
7. The anti-interference intercom microphone extension cable according to claim 3, characterized in that: The signal conductor (30) is provided with a first conductor (31), a second conductor (32) and a third conductor (33); the shielding layer (40) is provided with a first shield (41), a second shield (42) and a third shield (43); the first shield (41) is sleeved on the outer periphery of the first conductor (31) to form a shielding layer (40); the second shield (42) is sleeved on the outer periphery of the second conductor (32) to form a shielding layer (40); and the third shield (43) is sleeved on the outer periphery of the third conductor (33) to form a shielding layer (40).
8. The anti-interference intercom microphone extension cable according to claim 7, characterized in that: The shielding layer (40) is further provided with a fourth shield (44); the first conductor (31), the second conductor (32) and the third conductor (33) are intertwined and twisted to form an integral conductor; the fourth shield (44) is sleeved on the integral conductor by a winding process, or sleeved on the integral conductor by a braiding process.
9. The anti-interference intercom microphone extension cable according to claim 8, characterized in that: The telescopic cable (20) is further provided with a tensile yarn (21), and the tensile yarn (21) is synchronously cross-wound with the overall conductor to form a tensile conductor.
10. The anti-interference intercom microphone extension cable according to claim 9, characterized in that: The telescopic cable (20) is further provided with a rubber sheath (22), and the rubber sheath (22) is sleeved on the outer circumference of the tensile conductor, thereby forming a protective soft rubber shell for the extension connecting line.