Fakra radio set wire harness

Abstract

The utility model provides a Fakra radio set wire harness which comprises a radio set host, a radio set antenna and a connecting cable, a Fakra male head connector is arranged on a circuit board of a radio set, an FM male head connector is arranged on the radio set antenna, a Fakra female head connector is arranged at one end of the connecting cable, and an FM female head connector is arranged at the other end of the connecting cable. The radio host and the radio antenna are connected through a connecting cable, the Fakra female connector is connected with the Fakra male connector in a clamped mode, and the FM female connector is connected with the FM male connector in a clamped mode. The Fakra female connector and the FM female connector are arranged at the two ends of the connecting cable, signal transmission between different connector structures is achieved, the Fakra female connector is small in size, wire harnesses can conveniently penetrate through narrow holes and gaps in the installation process, core wires are connected with core wire terminals through tin soldering in the terminal manufacturing process, and the wire harnesses are prevented from being damaged. The connection strength between the core wire and the core wire terminal is improved, and the drawing force is ensured to meet the process requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile wire harness connection, especially relates to a Fakra radio wire harness. BACKGROUND

[0002] Wireless broadcasting has lower dependence on infrastructure, and the coverage radius of a frequency modulation broadcasting transmitting station exceeds 100 kilometers, so when a disaster occurs, the broadcasting transmitting station can ensure uninterrupted emergency information release because it is far away from the disaster area. Since vehicles are basically metal shells, in order to better receive signals, the antenna of the radio is usually installed outside the vehicle, and then the radio antenna and the main machine are connected through a wire harness. The radio antenna is usually an FM connector. This FM connector lacks consideration of miniaturization and connection reliability, making the traditional FM connector space and signal transmission unstable. It is gradually being replaced by Fakra connectors that are more reliable and smaller in size. Therefore, in order to connect the FM connector of the radio antenna to the main machine, a Fakra radio wire harness is needed, which is configured with an FM connector at one end and a Fakra connector at the other end to realize high-frequency signal transmission between the two connectors, reduce the space occupied by the connector connection, and improve signal transmission stability. SUMMARY

[0003] To solve the above problems, the utility model provides a kind of Fakra radio wire harness, it is configured with FM connector at one end, and Fakra connector is configured at the other end, realizes high-frequency signal transmission between the two connectors, reduces the space occupied by the connector connection, and improves signal transmission stability.

[0004] The utility model is realized by the following technical scheme:

[0005] The utility model provides a kind of Fakra radio wire harness, including: radio main machine, radio antenna, connecting cable, the circuit board of the radio is equipped with Fakra male connector, the radio antenna is equipped with FM male connector, the connecting cable one end is equipped with Fakra female connector, and the connecting cable other end is equipped with FM female connector;The radio main machine and radio antenna are connected by connecting cable, the Fakra female connector is clamped with Fakra male connector, and the FM female connector is clamped with FM male connector.

[0006] Further, the connecting cable middle part is equipped with core wire, and the core wire outside is wrapped with polyethylene insulating tube, the polyethylene insulating tube outside is wrapped with outer conductor, and the outer conductor outside is wrapped with insulating rubber layer.

[0007] Further, the Fakra female connector comprises a sheath, an outer conductor terminal, a core wire terminal, a copper sleeve, the core wire terminal is coaxially installed in the outer conductor terminal through a first rubber sleeve, the outer conductor terminal is installed in the sheath through a second rubber sleeve, and the copper sleeve is sleeved on one end of the outer conductor terminal.

[0008] Further, the core wire and the polyethylene insulation tube extend into the outer conductor terminal, and the core wire is connected with the core wire terminal, and the outer conductor is clamped in the gap between the outer conductor terminal and the copper sleeve.

[0009] Further, one side of the core wire terminal is provided with a clamping piece, the core wire is clamped through the clamping piece, and the core wire is connected with the clamping piece through tin soldering.

[0010] Further, the copper sleeve clamps the outer conductor and the connecting cable through extrusion deformation.

[0011] The utility model discloses the beneficial effects: through setting up Fakra female connector and FM female connector at connecting cable both ends, realize signal transmission between different connector structures, and Fakra female connector volume is small, and it is convenient for wiring harness installation to pass through the narrow hole and gap, when making the terminal, the core wire is connected with the core wire terminal through tin soldering, improves the connecting strength between the core wire and the core wire terminal, guarantees that the drawing force satisfies the technological requirement. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural diagram of the utility model;

[0013] Figure 2 It is the structural diagram of the utility model connecting cable;

[0014] Figure 3 It is the structural diagram of the utility model radio antenna;

[0015] Figure 4 It is the structural diagram of the utility model Fakra female connector;

[0016] In the drawing: 1-radio main machine, 2-radio antenna, 3-connecting cable, 4-Fakra male connector, 5-FM male connector, 6-Fakra female connector, 7-FM female connector, 9-core wire, 10-polyethylene insulation tube, 11-outer conductor, 12-insulating rubber layer, 13-sheath, 14-outer conductor terminal, 15-core wire terminal, 16-copper sleeve, 17-first rubber sleeve, 18-second rubber sleeve, 19-clamping piece. DETAILED DESCRIPTION

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0020] like Figures 1 to 4 As shown, one embodiment of this utility model provides a Fakra radio wiring harness, including: a radio host 1, a radio antenna 2, and a connecting cable 3. The radio's circuit board is provided with a Fakra male connector 4, the radio antenna 2 is provided with an FM male connector 5, one end of the connecting cable 3 is provided with a Fakra female connector 6, and the other end of the connecting cable 3 is provided with an FM female connector 7. The radio host 1 and the radio antenna 2 are connected by the connecting cable 3, the Fakra female connector 6 is snapped into the Fakra male connector 4, and the FM female connector 7 is snapped into the FM male connector 5.

[0021] If the radio antenna 2 is directly connected to the radio host 1 through a single cable, it is not conducive to the design of the assembly sequence. A single cable that is too long is not conducive to assembly. Therefore, a wire harness will be set between the radio host 1 and the radio antenna 2, so that the radio host 1, radio antenna 2 and wire harness can be assembled separately on the vehicle, which improves the flexibility of the assembly design. In addition, the length of the wire harness can be matched with multiple different specifications according to the vehicle model, so as to avoid the wire harness being too long or too short and affecting the assembly.

[0022] The traditional FM connector is large in size, occupies part of the space behind the radio mainframe 1, has poor reliability, and is prone to loosening after vibration. Therefore, some radio mainframes 1 begin to use Fakra connectors for connection. Fakra is a relatively common connector structure on vehicles, which is provided with buckles to prevent loosening. However, considering the cost, inventory, supplier and other factors, the vehicle enterprises still purchase radio antennas 2 with FM male connectors 5, and therefore the wire harness is needed to convert the electrical signal from the radio antenna 2 with the FM connector to the radio mainframe 1 with the Fakra connector.

[0023] The connection cable 3 for transmitting broadcast signals is generally a 75Ω coaxial cable. One end of the connection cable 3 is welded on the FM female connector 7, so that the loosening problem is not easy to occur. The Fakra female connector 6 is generally connected by a terminal crimping. Since the core wire 9 of the 75Ω cable is thin, after the terminal crimping, the clamping piece 19 cannot effectively clamp the core wire 9. Therefore, the core wire 9 needs to be connected to the core wire terminal 15 by soldering on the crimped core wire terminal 15, so as to improve the connection strength and ensure that the pulling force meets the process requirements.

[0024] The connection cable 3 is connected to the Fakra male connector 4 on the radio mainframe 1 through the Fakra female connector 6. The Fakra female connector 6 is small in size, is convenient to pass through narrow holes and gaps during the installation of the wire harness, occupies small space at the rear of the radio mainframe 1, and is firmly connected.

[0025] Specifically, as shown in Figure 4 , the connection cable 3 is provided with a core wire 9 in the middle. The core wire 9 is wrapped with a polyethylene insulating tube 10 on the outside. The polyethylene insulating tube 10 is wrapped with an outer conductor 11 on the outside. The outer conductor 11 is wrapped with an insulating rubber layer 12 on the outside. The connection cable 3 generally adopts a 75Ω cable to meet the demand of wireless broadcast signal transmission. The core wire 9 and the outer conductor 11 can be used to realize the connection of the Fakra connector and the FM connector.

[0026] Preferably, as shown in Figure 4 , the Fakra female connector 6 includes a sheath 13, an outer conductor terminal 14, a core wire terminal 15, and a copper sleeve 16. The core wire terminal 15 is coaxially installed in the outer conductor terminal 14 through a first rubber sleeve 17. The outer conductor terminal 14 is installed in the sheath 13 through a second rubber sleeve 18. The copper sleeve 16 is sleeved on one end of the outer conductor terminal 14. The core wire terminal 15 is connected to the core wire 9. The outer conductor terminal 14 is connected to the outer conductor 11 to realize signal transmission. When the terminal is crimped, the copper sleeve 16 is deformed by a hydraulic device to clamp the connection cable 3, so as to prevent the connection cable 3 from loosening from the Fakra female connector 6 when an external force is pulled.

[0027] Preferably, the core wire 9 and the polyethylene insulation tube 10 extend into the outer conductor terminal 14, and the core wire 9 is connected with the core wire terminal 15, and the signal transmission is realized by connecting the core wire terminal 15 with the corresponding structure on the Fakra male connector 4, the outer conductor 11 is clamped in the gap between the outer conductor terminal 14 and the copper sleeve 16, the outer conductor terminal 14 can be connected with the outer conductor 11 to realize the signal transmission circuit or be used for grounding, and the shielding layer is realized.

[0028] Specifically, the core wire terminal 15 is provided with a clamping piece 19 on one side, the core wire 9 is clamped through the clamping piece 19, and the core wire 9 is connected with the clamping piece 19 through tin soldering. When the terminal is pressed, the clamping piece 19 is deformed to clamp the core wire 9 through the hydraulic equipment, however, since the core wire 9 in the commonly used connecting cable 3 is thin, the anti-pulling performance of the core wire 9 after the terminal is pressed is still low, therefore, after the core wire terminal 15 is pressed, the core wire 9 is connected with the core wire terminal 15 through tin soldering, the pulling force is improved, and the use requirement is met

[0029] In a specific embodiment, the copper sleeve 16 clamps the outer conductor 11 and the connecting cable 3 through extrusion deformation, the outer conductor 11 extends into the gap between the outer conductor terminal 14 and the copper sleeve 16, under the action of the hydraulic machine and the mold, the copper sleeve 16 is pressed and deformed, so as to clamp the connecting cable 3, and the outer conductor 11 is pressed on the outer conductor terminal 14, so that the electrical connection between the outer conductor 11 and the outer conductor terminal 14 is realized, the copper sleeve 16 realizes fixed connection through extrusion deformation, the efficiency is high, and welding is not needed, and quick connection is realized.

[0030] Of course, the utility model also can have other various implementation manners, based on the embodiment, other implementation manners obtained by the ordinary skilled in the art without any creative labor belong to the range protected by the utility model.

Claims

1. A Fakra radio harness, characterized in that, Include: The radio host (1), radio antenna (2), connecting cable (3), the radio circuit board is provided with Fakra male connector (4), the radio antenna (2) is provided with FM male connector (5), the connecting cable (3) one end is provided with Fakra female connector (6), the connecting cable (3) the other end is provided with FM female connector (7);The radio host (1) and radio antenna (2) are connected through connecting cable (3), the Fakra female connector (6) is connected with Fakra male connector (4), and the FM female connector (7) is connected with FM male connector (5).

2. A Fakra radio harness according to claim 1, characterized in that, The connecting cable (3) is provided with a core wire (9) in the middle, the core wire (9) is wrapped with a polyethylene insulating tube (10) outside, the polyethylene insulating tube (10) is wrapped with an outer conductor (11) outside, and the outer conductor (11) is wrapped with an insulating rubber layer (12) outside.

3. A Fakra radio harness according to claim 2, characterized in that, The Fakra female connector (6) includes a sheath (13), an outer conductor terminal (14), a core wire terminal (15) and a copper sleeve (16), the core wire terminal (15) is coaxially installed in the outer conductor terminal (14) through a first rubber sleeve (17), the outer conductor terminal (14) is installed in the sheath (13) through a second rubber sleeve (18), and the copper sleeve (16) is sleeved on one end of the outer conductor terminal (14).

4. A Fakra radio harness according to claim 3, characterized in that, The core wire (9) and the polyethylene insulating tube (10) extend into the outer conductor terminal (14), and the core wire (9) is connected with the core wire terminal (15), the outer conductor (11) is clamped in the gap between the outer conductor terminal (14) and the copper sleeve (16).

5. A Fakra radio harness according to claim 4, characterized in that, One side of the core wire terminal (15) is provided with a clamping piece (19), the core wire (9) is clamped through the clamping piece (19), and the core wire (9) and the clamping piece (19) are connected through tin soldering.

6. A Fakra radio harness according to claim 5, characterized in that, The copper sleeve (16) clamps the outer conductor (11) and the connecting cable (3) by extrusion deformation.

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