Fire resistant high temperature and tensile resistant shielded cable assembly

Abstract

A kind of fireproof high-temperature-resistant tensile shielding cable assembly, the end of the cable is connected with the first navigation plug by tail attachment structure, or the end of the cable is connected with the tail of the second navigation plug;The tail attachment structure includes a cap sleeve connected with the first navigation plug, a rear sleeve detachably connected on the cap sleeve and through the cap sleeve, a shielding ring is arranged in the cap sleeve, the shielding ring is fixedly connected with the end of the shielding sleeve, a pressing ring and a compression ring are arranged in the rear sleeve and limited in the rear sleeve, the end of the sheath is clamped between the compression ring and the inner wall of the rear sleeve and the pressing ring;The tail structure of the second navigation plug includes a rear housing, the rear housing is nested with a bushing, the wire harness passes through the bushing and is electrically connected with the second navigation plug, the shielding sleeve and the sheath are sleeved on the bushing and are turned outwards, and a pressing plate is arranged across the opening of the rear housing.The cable assembly of the application realizes the shielding, high-temperature resistance, flame impact resistance and tensile effect of the entire cable assembly, and has high economic benefit.

Description

Technical Field

[0001] This invention relates to a cable assembly, specifically a fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly. Background Technology

[0002] Currently, all tensile cable assemblies require custom-made tensile cables to achieve tensile connections at both ends of the cable connector. Upon completion of cable manufacturing, a dedicated tensile cable assembly is formed with the corresponding connector. The conductor bundle and connector form a unified structure, exhibiting a high degree of customization. Once completed, it can only transmit the corresponding signal. When the cable assembly needs to transmit different types of signals, multiple custom-made tensile cables are typically required. These custom-made tensile cables lack versatility and cannot be mass-produced, resulting in high customization costs and low economic efficiency. Furthermore, it is difficult for custom-made cables to achieve high-temperature resistance and flame impact resistance. Summary of the Invention

[0003] To address the technical problems of the aforementioned customized cables lacking versatility, inability to withstand high temperatures, and resistance to flame impact, this invention provides a fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly.

[0004] The objective of this invention is achieved through the following technical solution. A fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to this invention includes a cable. The cable includes a conductor bundle and a shielding sleeve and a sheath sequentially sleeved on the outside of the conductor bundle. Both ends of the cable are connected to aviation connectors, including a first aviation connector and / or a second aviation connector. The end of the cable is connected to the first aviation connector via a tail attachment structure, or the end of the cable is directly connected to the tail of the second aviation connector. The tail attachment structure includes a capped sleeve detachably connected to the first aviation connector and a rear sleeve detachably connected to and communicating with the capped sleeve. A [missing information - likely a design element] is provided inside the capped sleeve. A shielding ring is axially limited and contacts the inner wall of the cap sleeve. The shielding ring is fixedly connected to the end of the shielding sleeve. A pressure ring and a clamping ring are provided inside the rear sleeve to limit the movement. The end of the sheath is clamped between the clamping ring and the inner wall of the rear sleeve and the pressure ring. The tail structure of the second aviation plug includes a rear housing that is open from front to back and has one side. A bushing is nested inside the rear housing. The wire harness passes through the bushing and is electrically connected to the second aviation plug. The shielding sleeve and the sheath are fitted on the bushing and are turned outward. A pressure plate is provided across the opening of the rear housing. The pressure plate presses the shielding sleeve, the sheath and the bushing.

[0005] Furthermore, the sheath comprises silicone rubber and high-purity silicone fiber, with the inner layer of the sheath being high-purity silicone fiber and the outer layer being wrapped with a layer of silicone rubber.

[0006] Furthermore, the outer wall of the capped sleeve is threaded to the first insert, and the inner wall of the rear sleeve is threaded to the capped sleeve, and is fixed with fastening screws.

[0007] Furthermore, the shielding ring is coaxially disposed in the inner cavity of the cap sleeve, and the outer diameter of its front end near the first aero insert is larger than the outer diameter of its rear end, so that there is a cavity between the outer wall of the rear end of the shielding ring and the inner wall of the cap sleeve to accommodate the shielding sleeve.

[0008] Furthermore, the inner wall of the cap sleeve is provided with a step, and the outer circumference of the front end of the shielding ring is provided with an outward flange, which is engaged with the step.

[0009] Furthermore, the shielding sleeve is fitted onto the rear end of the shielding ring away from the first aviation plug and is secured with metal wire.

[0010] Furthermore, the outer circumference of the rear end of the shielding sleeve is provided with an outward-flared edge.

[0011] Furthermore, the diameter of the inner cavity at the rear end of the rear sleeve, away from the first insertion point, gradually decreases from the front end to the rear end. A pressure ring and a clamping ring are provided in the inner cavity at the rear end of the rear sleeve, and the outer diameter of the clamping ring gradually decreases from the front end to the rear end. The end of the sheath is fitted onto the clamping ring, and the inner wall of the rear sleeve clamps the sheath with the clamping ring. The front edge of the sheath is clamped between the pressure ring and the front end face of the clamping ring, and the front end face of the pressure ring simultaneously abuts against the rear end face of the capped sleeve. The sum of the maximum outer diameter of the clamping ring and twice the wall thickness of the sheath is greater than the minimum inner diameter of the cavity at the rear end of the rear sleeve.

[0012] Furthermore, a groove is provided in the inner cavity of the rear housing, and an outward flange is provided on the outer circumference of the bushing near the front end of the second air insertion. The outward flange of the bushing is stuck in the groove of the rear housing, restricting the axial movement of the bushing and the rear housing.

[0013] Furthermore, the bushing has an outwardly turned edge on the outer circumference of its rear end, and the pressure plate presses against the position between the front and rear outwardly turned edges of the bushing.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The internal conductor bundle of the cable assembly of this invention can be adjusted and arbitrarily combined according to different types of signals, and then assembled with other accessories of the cable assembly. The assembled cable assembly realizes the transmission of different types of signals. In the production process, the various accessories of the cable assembly of this invention can be mass-produced, and then the corresponding conductor bundle is assembled with other accessories according to the signal to be transmitted, without the need to customize specialized cables. The shielding sleeve of the conductor bundle achieves the effect of electromagnetic compatibility. The tensile structure of the two ends of the aviation plug or tail attachment structure is connected together by the outermost sheath, and the connection is detachable. Thus, the entire cable assembly achieves the effects of shielding, high temperature resistance, flame impact resistance and tensile strength. Moreover, since there is no need to customize specialized cables, it can save costs and achieve high economic benefits.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of a fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to the present invention;

[0018] Figure 2a for Figure 1 Half-sectional view of the mid-tail appendage structure;

[0019] Figure 2b for Figure 1 A three-dimensional schematic diagram of the mid-tail appendage structure;

[0020] Figure 3a for Figure 1 A schematic diagram of the second landing craft in the middle of the flight path;

[0021] Figure 3b for Figure 1 A three-dimensional schematic diagram of the second landing craft in the middle of the aircraft;

[0022] Figure 4 for Figure 1 A schematic diagram of the inner sheath;

[0023] Figure 5 for Figure 1 Assembly diagram of the mid-tail attachment structure;

[0024] Figure 6 for Figure 1 Assembly diagram of the second aircraft connector;

[0025] Figure 7 for Figure 6 Installation diagram of the intermediate bushing, cable sheath, and shielding sleeve.

[0026] [Attached image labels]

[0027] 1-Wire, 2-Shielding sleeve, 3-Sheath, 301-Silicone fiber, 302-Silicone rubber, 4-First flight connector, 5-Tail attachment structure, 501-Capped sleeve, 502-Shielding ring, 503-Pressure ring, 504-Pressure ring, 505-Rear sleeve, 6-Second flight connector, 601-Rear housing, 602-Bushing, 603-Pressure plate, 7-Metal wire. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] An embodiment of a fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly of the present invention is as follows: Figures 1 to 6 As shown, hereinafter referred to as the component. The component includes a cable, a first flight connector 4, a tail attachment structure 5, and a second flight connector 6.

[0030] The cable includes conductors 1, a shielding sleeve 2, and a sheath 3. Multiple conductors are selected according to the signal transmitted by the cable assembly. The conductor bundle formed by the multiple conductors 1 is covered by the shielding sleeve 2, and the shielding sleeve 2 is covered by the sheath 3. The sheath 3 is made of silicone rubber 302 and high-purity silicone fiber 301, providing fire resistance, high temperature resistance, and tensile strength. The inner layer of the sheath 3 is high-purity silicone fiber 301, and the outer layer is wrapped with silicone rubber 302. Figure 4 As shown, the sheath 3 can withstand a tensile force of 5000N without being damaged, and can withstand short-term flame impact while also being resistant to high temperatures.

[0031] Both ends of the cable are connected with aviation plug structures. Since this component needs to withstand significant tensile force at both ends, the aviation plugs must be designed with tensile strength for connection to the cable, such as... Figure 3a The shown flight plug, Figure 6 This is a schematic diagram of the connection between the connector and the cable, or a tail accessory with a tensile strength structure is installed between the cable and the connector, which connects the cable and the connector together, such as... Figure 2a The tail attachment structure 5 shown is as follows: Figure 5 As shown Figure 2a The diagram shows a tail attachment structure connecting a cable to an aviation connector. In this embodiment, a first aviation connector is provided at one end of the cable, and a second aviation connector is provided at the other end. One end of the cable is connected to the first aviation connector 4 via the tail attachment structure 5, and the other end is connected via the tail structure of the second aviation connector 6, which has a built-in tensile strength structure. In other embodiments, both ends of the component can be connected to the aviation connector using the tail attachment structure 5, thereby achieving tensile strength between the cable and the aviation connector; or both ends of the cable can be connected to aviation connectors with tensile strength structures, achieving tensile strength between the cable and the aviation connector.

[0032] The tail attachment structure 5 includes a capped sleeve 501, a shielding ring 502, a pressure ring 503, a clamping ring 504, and a rear sleeve 505. The front end of the tail attachment structure 5 is connected to the first aviation connector 4, and the rear end is connected to the cable. The inner wall of the front end of the capped sleeve 501 is threaded to the first aviation connector 4 and fastened with a fastening screw. The outer wall of the rear end of the capped sleeve 501 is threaded to the front end of the rear sleeve 505 and fastened with a fastening screw. The shielding ring 502 is coaxially disposed in the inner cavity of the capped sleeve 501, and its front outer diameter is larger than its rear outer diameter, so that a cavity is left between the outer wall of the rear end of the shielding ring 502 and the inner wall of the capped sleeve 501. The outer circumference of the front end of the shielding ring 502 is provided with an outwardly flared edge, which is engaged with the step on the inner wall of the cap sleeve 501. When the cable and the first connector 4 are subjected to tension, the outwardly flared edge abuts against the step, preventing the shielding ring 502, which is fixed to the shielding sleeve 2, from falling out of the cap sleeve 501. The outer circumference of the rear end of the shielding ring 502 is also provided with an outwardly flared edge. The end of the shielding sleeve 2 is fitted onto the rear end of the shielding ring 502 and secured with metal wire 7. The outwardly flared edge at the rear end of the shielding ring 502 enhances the tensile strength. The diameter of the inner cavity at the rear end of the rear sleeve 505 gradually decreases from the front end to the rear end. A pressure ring 503 and a clamping ring 504 are also provided in the inner cavity at the rear end of the rear sleeve 505. The outer diameter of the clamping ring 504 gradually decreases from the front end to the rear end. The end of the sheath 3 is fitted onto the clamping ring 504. The inner wall of the rear sleeve 505 clamps the sheath 3 with the clamping ring 504, and the front edge of the sheath 3 is clamped between the front end faces of the clamping ring 503 and the clamping ring 504. The front end face of the clamping ring 503 simultaneously abuts against the rear end face of the capped sleeve 501. The sum of the maximum outer diameter of the clamping ring 504 and twice the wall thickness of the sheath 3 is greater than the minimum inner diameter of the cavity at the rear end of the rear sleeve 505, so that the ends of the clamping ring 504, the clamping ring 503, and the sheath 3 are locked inside the rear sleeve 505, enhancing tensile strength.

[0033] The rear end of the second connector 6 is provided with a rear housing 601, which has an opening on one side and is continuous at both ends. A bushing 602 is nested inside the rear housing 601. A groove is formed in the inner cavity of the rear housing 601. An outwardly flared edge is provided on the outer circumference of the front end of the bushing 602, and the outwardly flared edge of the bushing is engaged in the groove of the rear housing 601, restricting the axial movement of the bushing 602 and the rear housing 601. The conductor bundle in the cable passes through the bushing 602 and connects to the first connector 4. The shielding sleeve 2 and sheath 3 at the cable end are fitted onto the rear end of the bushing 602. A pressure plate 603 is transversely arranged on the rear housing 601. The two ends of the pressure plate 603 are fixed to the rear housing 601, and the middle part is pressed against the sheath 3, shielding sleeve 2, and bushing 602, thus fixing the sheath 3, shielding sleeve 2, and bushing 602 inside the rear housing 601. The bushing 602 has an outwardly flared edge on its rear outer circumference. The pressure plate 603 presses down between the front and rear outwardly flared edges of the bushing 602 to enhance tensile strength. The shielding sleeve 2 flares outward on the outside of the sheath 3, and the pressure plate 603 presses down on the shielding sleeve 2, making the shielding sleeve 2 conductive with the housing of the second aviation plug 6 to achieve shielding.

[0034] The assembly process of this component is as follows: the wire harness is covered with a shielding sleeve 2, and then the shielded wire harness is inserted into the sheath 3 to form a cable. One end of the cable is fitted with a rear sleeve 505. Then, a section of sheath 3 is peeled off from that end. A clamping ring 504, a clamping ring 503, and a capped sleeve 501 are sequentially fitted onto the shielding sleeve 2. The shielding sleeve 2 is then peeled off from that end, and the shielding ring 502 is fitted onto the conductor bundle. The end of the conductor bundle is connected to the first aviation connector 4. The shielding sleeve 2 is fitted onto the rear end of the shielding ring 502 and secured with metal wire 7. The capped sleeve 501 is threaded onto the first aviation connector 4 and then tightened with fastening screws. The front end of the shielding ring 502 is inserted into the capped sleeve 501, achieving shielding conduction between the shielding sleeve 2 and the housing of the first aviation connector 4. The front edge of the sheath 3 is clamped between the clamping ring 503 and the clamping ring 504. The rear sleeve 505 is threaded onto the capped sleeve 501, while the inner wall of the rear sleeve 505 presses against the sheath 3, achieving tensile strength between the tail attachment structure 5 and the sheath 3. Specifically, as follows... Figure 5 As shown.

[0035] At the other end of the cable, the sheath 3 and shielding sleeve 2 are stripped from the conductor bundle together. At this point, the shielding sleeve 2 is separated from the conductor bundle, but the sheath 3 is not separated from the shielding sleeve 2. The conductor bundle is then passed through the bushing 602, and the sheath 3 and shielding sleeve 2 are simultaneously placed on the bushing 602. Then, the shielding sleeve 2 and sheath 3 are folded outwards, so that the shielding sleeve 2 is folded to the outside of the sheath 3. Figure 7 As shown, the bushing 602, along with the sheath 3 and shielding sleeve 2, is nested inside the rear housing 601 to electrically connect the wire harness to the second aviation connector 6. Then, the shielding sleeve 2, sheath 3, and bushing 602 are pressed together using a pressure plate 603. The pressure plate 603 is then fixed to the rear housing 601. An outward-flared edge is provided on the outer circumference of the rear end of the bushing 602. The pressure plate 603 presses between the outward-flared edges of the front and rear ends of the bushing 602, and the outward-flared edge at the front end of the bushing 602 is secured to the rear housing 601, thereby achieving tensile strength between the cable and the second aviation connector 6. The shielding sleeve 2 flares out onto the sheath 3 and is pressed together with the pressure plate 603, achieving shielded conduction between the shielding sleeve 2 and the second aviation connector housing. Specifically, as shown... Figure 6 As shown.

[0036] Through the measures implemented above, the cable connectors at both ends are connected by the intermediate shielding sleeve 2 and sheath 3, achieving fire resistance, high temperature resistance, and shielding. One end of the shielding sleeve 2 is fixed to the shielding ring 502, which is fixed to the capped sleeve 501. The housing of the second connector is fixed to the capped sleeve 501. The other end of the shielding sleeve 2 is connected to the pressure plate 603, which is fixed to the rear housing 601 of the second connector, thus achieving full shielding of the cable, the first connector, and the second connector. One end of the sheath 3 is fixed inside the rear sleeve 505, which is fixed to the first connector via the capped sleeve. The other end of the sheath 3 is fixed inside the rear housing of the second connector, achieving overall fire resistance and high temperature resistance for the cable assembly. Ultimately, the entire cable assembly can function normally under a force of 1500N.

[0037] The internal conductor bundle of the cable assembly of this invention can be adjusted and arbitrarily combined according to different types of signals, and then assembled with other accessories of the cable assembly. The assembled cable assembly realizes the transmission of different types of signals. In the production process, the various accessories of the cable assembly of this invention can be mass-produced, and then the corresponding conductor bundle is assembled with other accessories according to the signal to be transmitted, without the need to customize specialized cables. The shielding sleeve of the conductor bundle achieves the effect of electromagnetic compatibility. The tensile structure of the two ends of the aviation plug or tail attachment structure is connected together by the outermost sheath, and the connection is detachable. Thus, the entire cable assembly achieves the effects of shielding, high temperature resistance, flame impact resistance and tensile strength. Moreover, since there is no need to customize specialized cables, it can save costs and achieve high economic benefits.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly, characterized in that: The cable includes a conductor bundle and a shield and a sheath sequentially sleeved on the outside of the conductor bundle. Both ends of the cable are connected to a first aviation connector, or both ends of the cable are connected to a second aviation connector, or one end of the cable is connected to the first aviation connector and the other end is connected to the second aviation connector. The end of the cable is connected to the first flight connector via a tail attachment structure, or the end of the cable is directly connected to the tail of the second flight connector. The tail attachment structure includes a cap sleeve detachably connected to the first flight insert, and a rear sleeve detachably connected to and communicating with the cap sleeve. An axially limiting shielding ring is disposed within the cap sleeve and contacts the inner wall of the cap sleeve. The shielding ring is fixedly connected to the end of the shielding sleeve. The shielding ring is coaxially disposed within the inner cavity of the cap sleeve, with its front end near the first flight insert having a larger outer diameter than its rear end, creating a cavity between the outer wall of the rear end of the shielding ring and the inner wall of the cap sleeve to accommodate the shielding sleeve. The shielding sleeve is fitted over the shielding ring furthest from the first flight insert. The rear end is secured with metal wire; the diameter of the inner cavity at the rear end of the rear sleeve gradually decreases from the front end to the rear end; a pressure ring and a clamping ring are installed in the inner cavity at the rear end of the rear sleeve; the outer diameter of the clamping ring gradually decreases from the front end to the rear end; the end of the sheath is fitted onto the clamping ring; the inner wall of the rear sleeve and the clamping ring clamp the sheath; and the front edge of the sheath is clamped between the pressure ring and the front end face of the clamping ring; the front end face of the pressure ring abuts against the rear end face of the capped sleeve; the sum of the maximum outer diameter of the clamping ring and twice the wall thickness of the sheath is greater than the minimum inner diameter of the cavity at the rear end of the rear sleeve. The tail structure of the second aviation connector includes a rear housing that runs through the front and rear and has an opening on one side. A bushing is nested inside the rear housing. A wire harness passes through the bushing and is electrically connected to the second aviation connector. A shielding sleeve and a protective sleeve are fitted on the bushing and are turned outwards. A pressure plate is arranged across the opening of the rear housing, and the pressure plate presses the shielding sleeve, protective sleeve, and bushing tightly. A groove is opened in the inner cavity of the rear housing. An outwardly turned edge is provided on the outer circumference of the bushing near the front end of the second aviation connector. The outwardly turned edge of the bushing is locked in the groove of the rear housing, restricting the axial movement of the bushing and the rear housing. An outwardly turned edge is provided on the outer circumference of the rear end of the bushing. The pressure plate is pressed between the front and rear outwardly turned edges of the bushing.

2. The fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to claim 1, characterized in that: The sheath comprises silicone rubber and high-purity silicone fiber, with the inner layer of the sheath being high-purity silicone fiber and the outer layer being wrapped with a layer of silicone rubber.

3. The fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to claim 1, characterized in that: The outer wall of the capped sleeve is threaded to the first insert, and the inner wall of the rear sleeve is threaded to the capped sleeve, and is fixed with fastening screws.

4. The fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to claim 1, characterized in that: The sleeve wall of the hood is provided with a step, and the outer circumference of the front end of the shielding ring is provided with an outward flange, which is stuck on the step.

5. The fire-resistant, high-temperature resistant, tensile-strength shielded cable assembly according to claim 1, characterized in that: The outer circumference of the rear end of the shielding sleeve is provided with an outward-curved edge.

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