Ignition cable resistant to instantaneous flame jet and capable of being snapped

Abstract

The invention relates to the technical field of ignition cables, and discloses an instantaneous flame jet resistant and breakable ignition cable, which is characterized in that a heat insulation layer is arranged on the surface layer of a wire, so that the ignition cable can bear the high-temperature influence of instantaneous flame, and the internal wire is prevented from being damaged due to high temperature; and the ignition cable can still complete a transmission task of an electric signal of a transmitting system in a severe flame environment. According to the invention, the pull-off connector is connected with the magazine, so that the ignition cable can be quickly separated from the magazine under the condition that the lead is not snapped, the failure of launching caused by the fact that the lead is not snapped during launching is avoided, and the safety and the flexibility of the ignition cable in use are improved.

Description

Technical Field

[0001] This invention relates to the field of ignition cable technology, and discloses an ignition cable that is resistant to instantaneous flame jets and can be broken. Background Technology

[0002] Missiles, as a key weapon system in the modern military field, play a vital role in today's fierce international technological and military competition. With increasingly demanding launch requirements for actual missions and the wider application of multiple rockets, there is a need for an ignition cable that can withstand the effects of the missile's flame jet and can be directly broken during launch. Summary of the Invention

[0003] The purpose of this invention is to provide an ignition cable that is resistant to instantaneous flame jets and can be broken, which can withstand the high temperature during missile launch and can be broken during launch to achieve separation from the missile and the missile magazine.

[0004] To achieve the above-mentioned technical effects, the technical solution adopted by the present invention is as follows: An ignition cable that is resistant to instantaneous flame jets and can be broken includes: plug; Pull-out connector; A wire harness, one end of which is electrically connected to the plug and the other end of which is connected to the pull-out connector, and a heat insulation layer is provided on the surface of the wire harness.

[0005] Furthermore, the conductor bundle is equipped with a wave-damping sleeve.

[0006] Furthermore, the heat insulation layer is fitted onto the outer wall of the wave-damping sleeve.

[0007] Furthermore, the heat insulation layer is a quartz glass fiber sleeve.

[0008] Furthermore, the quartz glass fiber sleeve is positioned close to the root of the pull-out connector.

[0009] Furthermore, the quartz glass fiber sleeve is fixed to the conductor by binding.

[0010] Furthermore, the wire harness includes several AF-250 / 0.08mm wires. 2 wire.

[0011] Furthermore, the plug is provided with connecting threads for threaded connection with the socket of the device to be connected.

[0012] Compared with the prior art, the beneficial effects of this invention are: This invention, by incorporating a heat-insulating layer on the surface of the conductor, enables the ignition cable to withstand the instantaneous high temperatures of the flame, preventing damage to the internal conductors due to heat and ensuring that the ignition cable can still transmit electrical signals for the firing system even in harsh flame environments. This invention employs a pull-out connector for connection to the magazine, allowing the ignition cable to quickly separate from the magazine without the conductor breaking, avoiding launch failures due to unbroken conductors and improving the safety and flexibility of the ignition cable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the ignition cable in the embodiment that is resistant to instantaneous flame jets and can be broken. Figure 2 This is a schematic diagram of the plug structure in the embodiment; Figure 3 for Figure 2 Side view; Among them, 1-plug, 2-pull-out connector, 21-connecting nut, 22-groove, 3-wire harness, 4-heat insulation layer, 5-surge protection sleeve. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. However, this should not be construed as limiting the scope of the above-described subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0015] See Figures 1 to 3 This invention addresses the impact of tail flame ejection during the launch and ignition of multiple missiles arranged in a missile magazine. It provides an ignition cable that is resistant to instantaneous flame ejection and is breakable, enabling wiring harness interconnection between the igniter and the engine, and completing the transmission of electrical signals in the launch system. The ignition cable includes: Plug 1; Pull-out connector 2; The wire harness 3 has one end electrically connected to the plug 1 and the other end connected to the pull-out connector 2, and a heat insulation layer 4 is provided on the surface of the wire harness 3.

[0016] This invention, by incorporating a heat insulation layer 4 on the surface of the conductor, enables the ignition cable to withstand the high temperatures of a momentary flame, preventing damage to the internal conductors due to heat and ensuring that the ignition cable can still transmit electrical signals for the firing system even in harsh flame environments. This invention also employs a pull-out connector 2 to connect to the magazine, allowing the ignition cable to quickly separate from the magazine without the conductor breaking, thus preventing launch failures due to unbroken conductors and improving the safety and flexibility of the ignition cable.

[0017] Example This embodiment further illustrates the structure of the ignition cable in this invention, which is resistant to instantaneous flame jets and can be broken.

[0018] The ignition cable includes a plug 1, a wire harness 3, and a Y34Q series pull-out connector 2. The wire harness 3 uses multiple AF-250 / 0.08mm wires. 2 The conductors are bundled together, and the conductor bundle 3 is covered with a high-temperature anti-wave sleeve 5. The anti-wave sleeve 5 is covered with a quartz glass fiber sleeve as a heat insulation layer 4.

[0019] One end of the wire harness 3 is connected to the missile body via a plug 1. The connector nut 21 of the plug 1 has two grooves 22, which can be tightened from the rear of the connector using a special tool to reduce the installation space. After installation, the connector is not exposed to the missile body, which can reduce the impact of the exhaust plume during launch.

[0020] The heat insulation layer 4 of the wire harness 3 is made of quartz glass fiber tubing. Quartz glass fiber tubing has a high temperature resistance, good heat insulation, and flame retardant properties, with a maximum temperature resistance of up to 1200℃. After the quartz glass fiber tubing is tied to the end of the wire harness 3, the folded-back sheath must be tightly attached to the root of the connector to provide a sealing protection for the internal wire harness 3, preventing the exhaust flames of other missiles launched from the missile magazine from affecting the internal passage of the wires.

[0021] The wire harness 3 uses AF-250 / 0.08mm² wire, which can withstand temperatures up to 250℃, and the breaking force of a single wire is approximately 65-75N. Wire harness 3 uses a total of 6 wires, and the overall breaking force of wire harness 3 does not exceed 450N. The instantaneous pulling force during missile ignition can easily break the wires without affecting the missile's normal launch.

[0022] The other end of the wire harness 3 uses a Y34Q series pull-out connector 2, whose pull-out force is greater than the breaking force of the wire harness 3. If the wire harness 3 does not break during missile launch, the connection between the ignition cable and the missile magazine circuit can be disconnected through the pull-out connector 2, allowing the missile to be launched normally.

[0023] Using the ignition cable of this invention, during missile launch, the ignition cable first selects to break the wire bundle 3 to separate from the missile magazine. If the wire bundle 3 cannot be broken normally, then the connector 2 is selected to separate from the missile magazine. If the connection is first broken by the connector 2, during actual launch, the disconnected connector may collide with other devices in the launch magazine due to the impact force of the launch, causing equipment damage or affecting the launch of other missiles in the magazine. Therefore, in the ignition cable of this invention, the connector pull-out force is greater than the breaking force of the wire bundle 3, ensuring that the ignition cable first selects to break the wire bundle 3.

[0024] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ignition cable that is resistant to instantaneous flame jets and can be broken, characterized in that, include: Plug (1); Pull-out connector (2); A wire harness (3) is provided, one end of which is electrically connected to the plug (1) and the other end is connected to the pull-out connector (2), and a heat insulation layer (4) is provided on the surface of the wire harness (3).

2. The ignition cable according to claim 1, characterized in that, The wire harness (3) is provided with a wave-damping sleeve (5).

3. The ignition cable according to claim 2, characterized in that, The heat insulation layer (4) is fitted onto the outer wall of the wave-damping sleeve (5).

4. The ignition cable according to claim 3, characterized in that, The heat insulation layer (4) is a quartz glass fiber sleeve.

5. The ignition cable according to claim 4, characterized in that, The quartz glass fiber sleeve is set tightly against the root of the pull-out connector (2).

6. The ignition cable according to claim 5, characterized in that, The quartz glass fiber sleeve is fixed to the wire by binding.

7. The ignition cable according to claim 6, characterized in that, The wire harness (3) includes several AF-250 / 0.08mm wires. 2 wire.

8. The ignition cable according to claim 1, characterized in that, The plug (1) is provided with a connecting nut (21).

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