Composite anti-pressure flexible cable

Abstract

The application provides a composite compression-resistant flexible cable, which comprises an inner protective layer, an electric unit, an outer protective layer, an outer buffer assembly, an inner buffer assembly and a plurality of opening and closing assemblies. The outer buffer assembly is located between the outer protective layer and the inner protective layer, and comprises an outer sliding member and a horizontal moving member. One end of the outer sliding member is elastically connected to a first zone of the inner protective layer, and the other end of the outer sliding member is slidably connected to the outer protective layer. The inner buffer assembly comprises a support member and an inner sliding member. The inner sliding member is slidable relative to the support member. One end of the inner sliding member is elastically connected to the support member, and the other end of the inner sliding member abuts against a second zone of the inner protective layer. One end of the opening and closing assembly is slidably connected to the support member, and the other end of the opening and closing assembly abuts against the electric unit. When the outer sliding member slides towards the side close to the inner protective layer, the outer sliding member can abut against the horizontal moving member to slide around the inner protective layer and provide an internal pressure to the inner sliding member. Based on the internal pressure, the inner sliding member slides towards the side away from the inner protective layer and abuts against the opening and closing assembly to move towards the side away from the electric unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible cable, in particular to a composite compression-resistant flexible cable. BACKGROUND

[0002] Flexible cables are often applied in dynamic environments, such as frequently moving, dragging or vibrating environments. However, the compression resistance of the current flexible cable is weak, and problems such as damage may occur when subjected to greater pressure. SUMMARY

[0003] The present application provides a composite compression-resistant flexible cable to solve the problem of weak compression resistance of the flexible cable in the known technology.

[0004] The present application provides a composite compression-resistant flexible cable, which comprises an inner protective layer, an electrical unit, an outer protective layer, an outer buffer assembly, an inner buffer assembly, and a plurality of opening and closing assemblies. The inner protective layer is provided with a receiving cavity. The electrical unit is located in the receiving cavity. The outer protective layer is spaced apart from the outer periphery of the inner protective layer. The outer buffer assembly is located between the outer protective layer and the inner protective layer, and comprises an outer sliding member and a horizontal moving member. One end of the outer sliding member is elastically connected to a first zone of the inner protective layer, and the other end of the outer sliding member is slidably connected to the outer protective layer. The inner buffer assembly comprises a support member and an inner sliding member. The inner sliding member is slidable relative to the support member. One end of the inner sliding member is elastically connected to the support member, and the other end of the inner sliding member abuts a second zone of the inner protective layer. One end of the opening and closing assembly is slidably connected to the support member, and the other end of the opening and closing assembly abuts the electrical unit against the inner protective layer. When the outer sliding member slides towards the side close to the inner protective layer, the outer sliding member can abut the horizontal moving member to slide around the inner protective layer and provide an internal pressure to the inner sliding member. Based on the internal pressure, the inner sliding member slides towards the side away from the inner protective layer and moves the opening and closing assembly away from the electrical unit.

[0005] In a possible implementation, the second zone is provided with an elastic protrusion on the side close to the outer protective layer. The elastic protrusion is located on the sliding path of the horizontal moving member. The horizontal moving member can at least partially pass over the elastic protrusion and move the elastic protrusion away from the outer protective layer.

[0006] In a possible implementation, the outer sliding member comprises an outer sliding part and a wedge part. One end of the outer sliding part is elastically connected to the first zone of the inner protective layer, and the other end of the outer sliding part is slidably connected to the outer protective layer.

[0007] Along the circumference of the inner protective layer, the wedge part is connected to one side of the sliding part. The wedge part is configured to abut the horizontal moving member to slide along the circumference of the inner protective layer.

[0008] In a possible implementation, the opening and closing assembly comprises an opening and closing piece and a first elastic piece, one end of the opening and closing piece is slidably connected to the support piece, the other end of the opening and closing piece abuts the electrical unit to the inner protective layer, and the first elastic piece is configured to provide an elastic force to the opening and closing piece, and the elastic force is configured to move the opening and closing piece away from the side of the electrical unit.

[0009] In a possible implementation, the number of the electrical units is set to be multiple, the number of the opening and closing assemblies and the inner sliding pieces is the same as the number of the electrical units, and one inner sliding piece is arranged between any adjacent two electrical units.

[0010] The opening and closing assembly comprises two opening and closing pieces and two first elastic pieces, and the two first elastic pieces respectively provide elastic forces to the two opening and closing pieces.

[0011] One of the two opening and closing pieces is located between the first side of the electrical unit and the adjacent inner sliding piece and abuts the first side, and the other of the two opening and closing pieces is located between the second side of the electrical unit and the adjacent inner sliding piece and abuts the second side.

[0012] In a possible implementation, a side wall of the inner sliding piece is provided with a first inclined surface, a side of the opening and closing piece close to the inner sliding piece is provided with a second inclined surface, the first inclined surface and the second inclined surface are arranged in parallel, and the first inclined surface abuts the second inclined surface when the inner sliding piece slides.

[0013] In a possible implementation, the opening and closing piece is slidably connected to the support piece, and the sliding direction of the opening and closing piece and the sliding direction of the adjacent inner sliding piece are perpendicular to each other.

[0014] The first elastic piece is arranged along the sliding direction of the opening and closing piece, one end of the first elastic piece is elastically connected to the support piece, and the other end of the first elastic piece is elastically connected to the opening and closing piece.

[0015] In a possible implementation, the support piece comprises a center part and a plurality of extension parts, the plurality of extension parts are arranged around the outer circumferential surface of the center part, the plurality of extension parts are arranged in correspondence with the plurality of electrical units, and one extension part is arranged between any adjacent two electrical units.

[0016] The plurality of inner sliding pieces are arranged in correspondence with the plurality of extension parts, and the inner sliding piece is slidably connected to the corresponding extension part.

[0017] In a possible implementation, the extension part is provided with the opening and closing members on two opposite sides respectively, and the two opening and closing members are slidably connected to the extension part, and the sliding directions of the two opening and closing members are perpendicular to the sliding direction of the inner sliding member, and the two opening and closing members abut against two different electric units respectively.

[0018] In a possible implementation, the inner sliding member comprises an inner sliding part and a supporting part, one end of the inner sliding part is elastically connected to the supporting part, the supporting part is connected to the other end of the inner sliding part, and the supporting part is configured to support the inner protective layer.

[0019] The composite compression-resistant flexible cable of the present application can play a buffering role through the outer sliding member when the corresponding part of the flexible cable and the outer sliding member is compressed, and when the outer sliding member is compressed and slides inward, the outer sliding member can abut against the transverse member to slide in the circumferential direction, the transverse member further makes the inner sliding member slide away from the inner protective layer, and based on the elastic connection between the inner sliding member and the supporting part, the external force received by the composite compression-resistant flexible cable can be buffered. In addition, during the sliding process of the inner sliding member, the opening and closing members can move away from the electric units, thereby providing space for the electric units to move inward, avoiding the direct action of external force on the electric units through the inner protective layer and causing damage to the electric units, and improving the compression resistance of the entire composite compression-resistant flexible cable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a cross-sectional view of the composite compression-resistant flexible cable of the present application in an embodiment.

[0021] Figure 2 FIG. 2 is a structural schematic view of the composite compression-resistant flexible cable in FIG. 1 in an embodiment. Figure 1

[0022] ​Main element symbol explanation: 100, composite type compression resistant flexible cable; P1, first inclined surface; P2, second inclined surface; P3, arc surface; P4, third inclined surface; P5, fourth inclined surface; P6, fifth inclined surface; 1, first section; 2, second section; 10, inner protective layer; 11, accommodating cavity; 12, containing groove; 20, electrical unit; 21, conductor; 22, insulating layer; 30, inner buffer assembly; 31, support piece; 310, weight-reducing hole; 311, center part; 312, extension part; 3120, movable cavity; 3121, first sliding groove; 3122, second sliding groove; 3123, first mounting part; 3124, third sliding groove; 32, inner sliding piece; 321, abutting part; 322, inner sliding part; 323, supporting part; 33, second elastic piece; 40, opening and closing assembly; 41, opening and closing piece; 411, main body part; 412, second branch part; 413, first branch part; 4130, second mounting part; 42, first elastic piece; 50, outer protective layer; 51, shielding layer; 52, shielding insulating layer; 53, outer protective sleeve; 60, outer buffer assembly; 61, outer sliding piece; 611, outer sliding part; 612, inclined wedge part; 62, transverse moving piece; 63, third elastic piece; 64, guide seat; 65, elastic protruding part.

[0023] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] The following description will reference the accompanying drawings so as to provide a thorough understanding of the present application. The drawings shown herein are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided in order to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. The same reference numerals indicate the same or similar components.

[0025] The terms used herein are only for the purpose of describing particular exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms as well. Furthermore, when used herein, "include", and / or "comprise", and / or "have", integers, steps, operations, components, and / or groups thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, and / or groups thereof.

[0026] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0027] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 2 As shown, this embodiment provides a composite pressure-resistant flexible cable 100, including an inner sheath 10, an electrical unit 20, an outer sheath 50, an outer buffer assembly 60, an inner buffer assembly 30, and multiple opening and closing assemblies 40.

[0029] The inner sheath 10 is made of insulating plastic and is roughly a hollow cylindrical structure. The inner sheath 10 has a receiving cavity 11 inside. There are multiple electrical units 20, which are located in the receiving cavity 11 and are evenly spaced around the axis of the inner sheath 10.

[0030] The outer sheath 50 is spaced apart on the outer periphery of the inner sheath 10 to form a gap between the inner sheath 10 and the outer sheath 50. An outer buffer assembly 60 is located within the gap between the outer sheath 50 and the inner sheath 10. The outer buffer assembly 60 includes an outer sliding member 61 and a lateral sliding member 62. One end of the outer sliding member 61 is elastically connected to the first region 1 of the inner sheath 10, and the other end of the outer sliding member 61 is slidably connected to the outer sheath 50. The inner buffer assembly 30 includes a support member 31 and an inner sliding member 32. The inner sliding member 32 is slidable relative to the support member 31. One end of the inner sliding member 32 is elastically connected to the support member 31, and the other end abuts against the second region 2 of the inner sheath 10. One end of the opening / closing assembly 40 is slidably connected to the support member 31, and the other end of the opening / closing assembly 40 abuts the electrical unit 20 against the inner sheath 10.

[0031] When the outer sliding member 61 slides toward the side closer to the inner protective layer 10, the outer sliding member 61 can resist the sliding of the transverse member 62 around the inner protective layer 10 and provide internal pressure to the inner sliding member 32. Based on the internal pressure, the inner sliding member 32 slides toward the side away from the inner protective layer 10 and resists the opening and closing assembly 40 moving toward the side away from the electrical unit 20.

[0032] Therefore, when the corresponding part of the composite anti-pressure flexible cable 100 is pressed, the outer sliding member 61 can play a buffering role, and when the outer sliding member 61 is pressed to slide inward, the outer sliding member 61 can resist the circumferential sliding of the horizontal moving member 62, and the horizontal moving member 62 further makes the inner sliding member 32 slide away from the inner protective layer 10, and based on the elastic connection between the inner sliding member 32 and the support member 31, the external force received by the composite anti-pressure flexible cable 100 can be buffered. In addition, during the sliding process of the inner sliding member 32, the opening and closing member 41 can move away from the electrical unit 20, thereby providing space for the electrical unit 20 to move inward, avoiding the direct action of external force on the electrical unit 20 through the inner protective layer 10, thereby improving the pressure resistance of the entire composite anti-pressure flexible cable 100.

[0033] Please combine Figures 1 to 2 In an embodiment, the second part 2 is provided with an elastic protrusion 65 on the side close to the outer protective layer 50, and the elastic protrusion 65 is located on the sliding path of the horizontal moving member 62, and the horizontal moving member 62 can at least partially pass through the elastic protrusion 65 and resist the movement of the elastic protrusion 65 away from the outer protective layer 50.

[0034] The outer buffering assembly 60 includes a plurality of outer sliding members 61, and the number of the plurality of outer sliding members 61 is the same as that of the plurality of electrical units 20, and the plurality of outer sliding members 61 are arranged one by one corresponding to the plurality of electrical units 20. Along the radial direction of the inner protective layer 10, the outer sliding member 61 and the electrical unit 20 are respectively arranged on the opposite sides of the same first part 1. In this embodiment, the number of electrical units 20 is four.

[0035] It can be understood that in other embodiments, the number of electrical units 20 can be three or five or other numbers. The specific number of electrical units 20 can be selected according to actual needs.

[0036] The number of elastic protrusions 65 is multiple, and the number of elastic protrusions 65 is the same as the number of electrical units 20. Along the circumferential direction of the inner protective layer 10, the plurality of outer sliding members 61 are arranged at equal intervals, the plurality of elastic protrusions 65 are arranged at equal intervals, and one elastic protrusion 65 is arranged at the middle position between any adjacent two outer sliding members 61. Two horizontal moving members 62 are arranged between any adjacent outer sliding member 61 and elastic protrusion 65, and along the circumferential direction of the inner protective layer 10, the outer sliding member 61, the two horizontal moving members 62, and the elastic protrusion 65 resist each other.

[0037] It can be understood that in other embodiments, the number of horizontal moving members 62 between any adjacent outer sliding member 61 and elastic protrusion 65 can also be three or more, and the specific number can be selected according to actual design needs.

[0038] In the embodiment, the outer sliding member 61 comprises an outer sliding portion 611 and a wedge portion 612. One end of the outer sliding portion 611 is elastically connected to the first zone portion 1 of the inner protective layer 10, and the other end of the outer sliding portion 611 is slidably connected to the outer protective layer 50. Along the circumferential direction of the inner protective layer 10, the wedge portion 612 is connected to one side of the sliding portion, and the wedge portion 612 is configured to resist the sliding of the transverse member 62 along the circumferential direction of the inner protective layer 10.

[0039] The inner protective layer 10 is provided with four first zone portions 1 and four second zone portions 2. The four first zone portions 1 are correspondingly provided with the four outer sliding members 61, and the four second zone portions 2 are correspondingly provided with the four elastic protrusions 65. Each first zone portion 1 is provided with a guide seat 64 near one side of the outer protective layer 50. The guide seat 64 is connected to the first zone portion 1, and the material of the guide seat 64 is an insulating plastic material. The guide seat 64 is provided with a guide hole. Along the radial direction of the inner protective layer 10, the guide hole penetrates through the guide seat 64. One end of the outer sliding portion 611 abuts against one side of the outer protective layer 50 near the inner protective layer 10, and the other end of the outer sliding portion 611 is slidably arranged in the guide hole. The number of the wedge portions 612 is two. Along the circumferential direction of the inner protective layer 10, the two wedge portions 612 are respectively connected to the opposite sides of the outer sliding portion 611. In addition, the surface of the wedge portion 612 near the outer protective layer 50 is attached to the inner wall of the outer protective layer 50, so as to support the outer protective layer 50 through the wedge portion 612, and the pressure generated when the outer sliding portion 611 is subjected to the pressure of the outer protective layer 50 is reduced through the arrangement of the wedge portion 612.

[0040] Along the circumferential direction of the inner protective layer 10, the surface of the wedge portion 612 away from the outer sliding portion 611 is provided with a third inclined surface P4. Along the sliding direction of the outer sliding portion 611, the third inclined surface P4 extends obliquely from one end thereof near the outer protective layer 50 to one side of the outer sliding portion 611 and towards the inner protective layer 10. The cross-sectional shape of the transverse member 62 is a parallelogram, and the inside of the transverse member 62 can be hollowly arranged to improve the flexibility of the flexible cable. The side of the transverse member 62 near the outer protective layer 50 is attached to the outer protective layer 50, and the side of the transverse member 62 near the inner protective layer 10 is attached to the inner protective layer 10. Along the circumferential direction of the inner protective layer 10, the surface of the transverse member 62 near the side of the wedge portion 612 abutting against it is provided with a fourth inclined surface P5, the fourth inclined surface P5 is parallel to the third inclined surface P4, and the third inclined surface P4 and the fourth inclined surface P5 abut against each other. The surface of the transverse member 62 away from the side of the wedge portion 612 abutting against it is provided with a fifth inclined surface P6, the fifth inclined surface P6 is parallel to the fourth inclined surface P5, and the fifth inclined surface P6 abuts against the fourth inclined surface P5 of the adjacent transverse member 62.

[0041] The inclined wedge part 612 and the transverse moving part 62 form an inclined wedge structure through the third inclined surface P4 and the fourth inclined surface P5, so that when the outer sliding part 61 is moved towards the side of the inner protective layer 10 under the action of an external force, the inclined wedge part 612 can abut against the two sides of the transverse moving part 62, and then the transverse moving part 62 is moved along the circumference of the inner protective layer 10 away from the side of the inclined wedge part 612, and then the transverse moving part 62 abuts against the adjacent transverse moving part 62 to move towards the elastic convex part 65, and then the transverse moving part 62 moves to partially pass the elastic convex part 65.

[0042] The two transverse moving parts 62 located on both sides of the elastic convex part 65 are arranged at intervals to form a space between the two transverse moving parts 62 for accommodating the elastic convex part 65. The elastic convex part 65 is made of elastic plastic material, and one side of the elastic convex part 65 is connected to the outer wall of the inner protective layer 10 along the radial direction of the inner protective layer 10, and the other side of the elastic convex part 65 is arranged at intervals with the outer protective layer 50, so that a space for the transverse moving part 62 to move can be formed between the elastic convex part 65 and the outer protective layer 50. The surface of the side of the elastic convex part 65 away from the inner protective layer 10 is a slope, so that the transverse moving part 62 abutting against the elastic convex part 65 can pass the elastic convex part 65 along the slope. At the same time, when the transverse moving part 62 passes the elastic convex part 65, the transverse moving part 62 exerts pressure on the elastic convex part 65, and then the elastic convex part 65 and the second part 2 where the elastic convex part 65 is located move away from the side of the outer protective layer 50, thereby exerting pressure on the inner sliding part 32. In addition, the elastic convex part 65 is made of elastic material, which can also well buffer the pressure from the transverse moving part 62.

[0043] It is worth noting that along the radial direction of the inner protective layer 10, the part of the transverse moving part 62 adjacent to the elastic convex part 65 is always located in the space on the side of the elastic convex part 65 close to the outer protective layer 50 and abuts against the outer protective layer 50, so that when the part of the outer protective layer 50 corresponding to the elastic convex part 65 is pressed, the pressure can act on the transverse moving part 62, and then the transverse moving part 62 presses the elastic convex part 65 inwardly, so that the elastic convex part 65 and the second part 2 where the elastic convex part 65 is located move away from the side of the outer protective layer 50, thereby exerting pressure on the inner sliding part 32.

[0044] In the embodiment, the first section 1 is provided with a plurality of accommodating grooves 12 near the side close to the outer sheath 50. The accommodating grooves 12 are formed by recessing inward from the side of the first section 1 close to the outer sheath 50. The outer buffer assembly 60 further comprises a plurality of third elastic members 63, which are arranged correspondingly to the plurality of outer sliding members 61. Each accommodating groove 12 is used to mount one third elastic member 63. One end of the third elastic member 63 is located in the accommodating groove 12 and connected to the bottom wall of the accommodating groove 12. The other end of the third elastic member 63 is elastically connected to the end of the outer sliding part 611 away from the outer sheath 50. The third elastic member 63 is a compression spring, so that the third elastic member 63 always provides an elastic force to the outer sliding member 61 to move towards the side of the outer sheath 50, thereby making the outer sliding member 61 adhere to the outer sheath 50 and support the outer sheath 50. In addition, the third elastic member 63 can also buffer the pressure received by the outer sliding member 61, thereby improving the pressure resistance of the soft cable.

[0045] Please combine Figures 1 to 2 In an embodiment, the opening and closing assembly 40 comprises an opening and closing member 41 and a first elastic member 42. One end of the opening and closing member 41 is slidably connected to the support member 31, and the other end of the opening and closing member 41 abuts the electrical unit 20 against the inner sheath 10. On the one hand, the position of the electrical unit 20 is fixed by being clamped between the opening and closing member 41 and the inner sheath 10, and on the other hand, the roundness of the entire pressure-resistant soft cable is ensured by the electrical unit 20 supporting the inner sheath 10. The first elastic member 42 is configured to provide an elastic force to the opening and closing member 41, and the elastic force is configured to move the opening and closing member 41 towards the side away from the electrical unit 20.

[0046] When the inner sliding member 32 slides towards the side away from the inner sheath 10, the inner sliding member 32 can provide a moving space. Based on the elastic force, the opening and closing member 41 can move in the moving space towards the side away from the electrical unit 20, thereby providing a space for the electrical unit 20 to move inward (i.e. towards the side away from the inner sheath 10) through the opening and closing member 41. When the pressure-resistant soft cable is no longer subjected to external force, the inner sliding member 32 slides towards the side close to the inner sheath 10, and the inner sliding member 32 can abut against its adjacent opening and closing member 41, so as to make the opening and closing member 41 abut against the electrical unit 20 to move towards the inner sheath 10, thereby resetting the electrical unit 20 to continue abutting against the inner sheath 10.

[0047] Please combine Figures 1 to 2 In an embodiment, the support member 31 is made of insulating plastic material, and the support member 31 comprises a central part 311 and a plurality of extension parts 312. The plurality of extension parts 312 are arranged around the outer peripheral surface of the central part 311, and the plurality of extension parts 312 are arranged correspondingly to the plurality of electrical units 20. There is one extension part 312 between any two adjacent electrical units 20.

[0048] The center portion 311 can have a circular or rectangular cross-sectional shape, and the central axis of the center portion 311 coincides with the central axis of the inner protective layer 10. A plurality of extension portions 312 are arranged at equal intervals around the outer circumferential surface of the center portion 311. A weight-reducing hole 310 is formed at the center of the center portion 311 to reduce the weight of the support member 31 and improve the bending performance of the support member 31.

[0049] In the present embodiment, the number of extension portions 312 is four, the four extension portions 312 are distributed in a cross shape, and the extension direction of any one of the extension portions 312 is parallel to the direction of one radial direction of the compression-resistant flexible cable, so that any two adjacent extension portions 312 are arranged perpendicular to each other. The number of electrical units 20 and opening and closing assemblies 40 is four, and one electrical unit 20 is accommodated in the space between any two adjacent extension portions 312.

[0050] It can be understood that in other embodiments, the number of electrical units 20 can also be three or five or other numbers, and the specific number of electrical units 20 can be selected according to actual needs.

[0051] In the present embodiment, the electrical unit 20 includes a conductor 21 and an insulating layer 22, and the conductor 21 is made of conductive material such as aluminum or copper. The insulating layer 22 is made of insulating material, and the insulating layer 22 covers the outer periphery of the conductor 21 to play an insulating role. It is worth noting that according to actual design needs, the electrical unit 20 can also be provided with shielding structures or protective structures, etc. Other structural components of the electrical unit 20 except the conductor 21 and the insulating layer 22 are not limited in the present application.

[0052] Please also refer to Figures 1 to 2 In an embodiment, the inner sliding member 32 includes an inner sliding portion 322, a support portion 323, and an abutting portion 321. One end of the inner sliding portion 322 is elastically connected to the support member 31, the support portion 323 is connected to the other end of the inner sliding portion 322, and the support portion 323 is configured to support the inner protective layer 10.

[0053] The extension portion 312 is internally provided with a movable cavity 3120, and the end of the extension portion 312 away from the center portion 311 is provided with a first sliding groove 3121, the extension direction of the first sliding groove 3121 is the same as the extension direction of the extension portion 312, and the first sliding groove 3121 communicates with the movable cavity 3120. The extension direction of the inner sliding portion 322 is the same as the extension direction of the extension portion 312, and the inner sliding portion 322 is slidably arranged in the first sliding groove 3121, so that the inner sliding portion 322 can slide relative to the extension portion 312.

[0054] It is worth noting that each of the four extensions 312 is provided with a first sliding groove 3121, and the four inner sliding members 32 are respectively slidably partially accommodated in the four first sliding grooves 3121, so as to realize the sliding of the four inner sliding members 32 relative to the four extensions 312, and the sliding direction of each inner sliding member 32 is parallel to the extension direction of the extension 312 where the inner sliding member 32 is located.

[0055] The support part 323 is located outside the movable cavity 3120, and the cross-sectional shape of the support part 323 is generally curved. The support part 323 is arranged in close contact with the inner circumferential surface of the inner protective layer 10. Along the circumferential direction of the inner protective layer 10, the two ends of the support part 323 are respectively close to the two adjacent electric units 20, so that the inner circumferential surface of the entire inner protective layer 10 can be supported by the four support parts 323 and the four electric units 20 to a large extent, so as to ensure the roundness of the entire compression-resistant flexible cable. In addition, the support part 323 is arranged in close contact with the inner protective layer 10, and the support part 323 has a relatively large arc length. When the inner protective layer 10 is subjected to an external force, the pressure can be uniformly distributed on the support part 323, so as to avoid stress concentration and damage to the inner protective layer 10 caused by the inner sliding member 32.

[0056] In particular, the material of the support part 323 has a certain elasticity, so that the support part 323 can deform elastically with the inner protective layer 10 subjected to compression.

[0057] In the embodiment, the inner buffer assembly 30 further includes a plurality of second elastic members 33, which are arranged in correspondence with the plurality of inner sliding members 32. One end of the second elastic member 33 is elastically connected to the support part 31, and the other end of the second elastic member 33 is elastically connected to the end of the inner sliding member 32 away from the inner protective layer 10.

[0058] The abutting part 321 is located in the movable cavity 3120, and the abutting part 321 is connected to the end of the inner sliding part 322 extending into the movable cavity 3120. The second elastic member 33 is located in the movable cavity 3120, and the extension direction of the second elastic member 33 is parallel to the extension direction of the extension 312 where the second elastic member 33 is located. One end of the second elastic member 33 is connected to the cavity wall on the side of the movable cavity 3120 away from the inner protective layer 10, and the other end of the second elastic member 33 is connected to the end of the abutting part 321 away from the inner sliding part 322.

[0059] The second elastic member 33 is a compression spring or the like, and always provides the inner sliding member 32 with an elastic force for moving toward the inner sheath 10 side, so that the support portion 323 can abut against the inner circumferential surface of the inner sheath 10, and when the inner sliding member 32 is moved away from the inner sheath 10 side under the action of an external force, the second elastic member 33 is continuously compressed, and after the external force is removed, the second elastic member 33 can push the inner sliding member 32 to return to the original position, and the inner sheath 10 is also supported by the support portion 323 to restore the original state. At the same time, when the inner sliding member 32 is acted on by an external force, the second elastic member 33 can also buffer the external force, thereby improving the pressure resistance of the flexible cable.

[0060] Please combine Figures 1 to 2 In an embodiment, a plurality of inner sliding members 32 are provided corresponding to a plurality of extension portions 312, and the inner sliding member 32 is slidably connected to the corresponding extension portion 312. The opposite sides of the extension portion 312 are respectively provided with opening and closing members 41, and the two opening and closing members 41 are slidably connected to the extension portion 312, and the sliding directions of the two opening and closing members 41 are perpendicular to each other, and the two opening and closing members 41 abut against two different electrical units 20 respectively.

[0061] The opening and closing assembly 40 includes two opening and closing members 41 and two first elastic members 42, and the two first elastic members 42 provide elastic force to the two opening and closing members 41 respectively. One of the two opening and closing members 41 is located between the first side of the electrical unit 20 and the adjacent inner sliding member 32, and abuts against the first side. The other of the two opening and closing members 41 is located between the second side of the electrical unit 20 and the adjacent inner sliding member 32, and abuts against the second side.

[0062] The four opening and closing assemblies 40 are provided corresponding to the four extension portions 312, and in a direction perpendicular to the extension direction of the extension portion 312, the two opening and closing members 41 of the same opening and closing assembly 40 are located on the opposite sides of the corresponding extension portion 312, that is, the two opening and closing members 41 of the same opening and closing assembly 40 abut against different electrical units 20 respectively. The adjacent two opening and closing members 41 of the adjacent two opening and closing assemblies 40 abut against the same electrical unit 20, so as to ensure the stability of the electrical unit 20 when it is abutted against the inner sheath 10.

[0063] The opening and closing member 41 includes a main body portion 411, a first branch portion 413 and a second branch portion 412. The main body portion 411 is located between the adjacent electrical unit 20 and the extension portion 312, and the main body portion 411 is arranged substantially along the extension direction of the extension portion 312. In a direction perpendicular to the extension direction of the extension portion 312, the side of the main body portion 411 close to the electrical unit 20 is provided with an arc surface P3, and the arc surface P3 can be attached to the surface of the electrical unit 20, and the first branch portion 413 and the second branch portion 412 are connected to the side of the main body portion 411 close to the extension portion 312. In the extension direction of the extension portion 312, the first branch portion 413 and the second branch portion 412 are arranged in a spaced manner.

[0064] The arc-shaped surfaces P3 of the two opening and closing members 41 are arranged substantially perpendicularly, and the arc-shaped surfaces P3 of the two opening and closing members 41 are respectively arranged on the two ends of the side of the electric unit 20 away from the inner protective layer 10, so as to ensure the position stability of the electric unit 20 when the anti-pressure flexible cable is not subjected to external force.

[0065] In the embodiment, the opening and closing member 41 is slidably connected to the support member 31, and the sliding direction of the opening and closing member 41 is perpendicular to the sliding direction of the inner sliding member 32 adjacent to the opening and closing member 41. The side wall of the inner sliding member 32 is provided with a first inclined surface P1, and the side of the opening and closing member 41 close to the inner sliding member 32 is provided with a second inclined surface P2, the first inclined surface P1 and the second inclined surface P2 are arranged in parallel, and the first inclined surface P1 abuts against the second inclined surface P2 when the inner sliding member 32 slides.

[0066] The second sliding groove 3122 is arranged on the opposite sides of the extension part 312 in a direction perpendicular to the extension direction of the extension part 312, the extension direction of the second sliding groove 3122 is perpendicular to the extension direction of the extension part 312, and the second sliding groove 3122 communicates with the movable cavity 3120. One end of the second branch part 412 is connected to the main body part 411, and the other end of the second branch part 412 is slidably arranged in the second sliding groove 3122, so that the second branch part 412 can slide relative to the extension part 312. The end of the second branch part 412 away from the main body part 411 extends into the movable cavity 3120 and abuts against the abutting part 321.

[0067] The abutting part 321 has a substantially isosceles trapezoidal cross-sectional shape, and the opposite sides of the abutting part 321 are respectively provided with a first inclined surface P1 in a direction perpendicular to the extension direction of the inner sliding part 322. The two first inclined surfaces P1 are symmetrically arranged with the center cross section of the extension part 312 as a reference. The end of the second branch part 412 of the two opening and closing members 41 adjacent to the extension part 312 where the inner sliding part 322 is located extends into the movable cavity 3120 and is provided with a second inclined surface P2. The two second inclined surfaces P2 are correspondingly arranged with the two first inclined surfaces P1, and the second inclined surface P2 is arranged in parallel with the corresponding first inclined surface P1, so that the two first inclined surfaces P1 of the inner sliding member 32 abut against the two second inclined surfaces P2 on the two sides at the same time, and then the inner sliding member 32 abuts against the two opening and closing members 41 adjacent to it at the same time. The abutting of the first inclined surface P1 and the second inclined surface P2 forms a wedge structure between the abutting part 321 and the second branch part 412.

[0068] The first inclined surface P1 is arranged obliquely from the end close to the inner protective layer 10 towards the center part 311 and towards the opening and closing member 41 adjacent to it.

[0069] Thus, when the inner slide 32 slides along the extension direction of the extension part 312 towards the center part 311, due to the setting of the first inclined surface P1, there is a certain activity space between the opening and closing part 41 and the abutting part 321 in the direction perpendicular to the sliding direction of the inner slide 32, and further, the opening and closing part 41 slides towards the side of the inner slide 32 under the action of the first elastic part 42, and further, the opening and closing part 41 moves away from the abutted electrical unit 20, thereby providing the electrical unit 20 with the space to move towards the side away from the inner protective layer 10.

[0070] When the inner slide 32 slides along the extension direction of the extension part 312 towards the inner protective layer 10, the inner slide 32 can abut the opening and closing parts 41 on both sides to slide synchronously and reversely perpendicular to the sliding direction of the inner slide 32, so that the opening and closing part 41 pushes the electrical unit 20 to move towards the inner protective layer 10 against the elastic force provided by the first elastic part 42, until the electrical unit 20 is reset to abut the inner protective layer 10.

[0071] In the present embodiment, the first elastic part 42 is arranged along the sliding direction of the opening and closing part 41, one end of the first elastic part 42 is elastically connected to the support part 31, and the other end of the first elastic part 42 is elastically connected to the opening and closing part 41.

[0072] Along the extension direction of the extension part 312, the first branch part 413 is arranged at intervals on the side of the extension part 312 close to the inner protective layer 10. The side of the extension part 312 close to the inner protective layer 10 is provided with a first mounting part 3123, the first mounting part 3123 is provided with a third sliding groove 3124, the extension direction of the third sliding groove 3124 is perpendicular to the extension direction of the extension part 312, and the first branch part 413 is partially and slidably accommodated in the third sliding groove 3124 to realize the sliding of the first branch part 413 relative to the extension part 312. The end of the first branch part 413 away from the main body part 411 is provided with a second mounting part 4130. The second mounting part 4130 is arranged at intervals on the side of the first mounting part 3123 close to the inner slide 32. The first elastic part 42 is located between the first mounting part 3123 and the second mounting part 4130, and one end of the first elastic part 42 is elastically connected to the first mounting part 3123, and the other end of the first elastic part 42 is elastically connected to the second mounting part 4130. The first elastic part 42 is a compression spring or the like, and the first elastic part 42 always provides the second mounting part 4130 with an elastic force to move towards the side of the inner slide 32, and further, always provides the opening and closing part 41 with an elastic force to move towards the side of the inner slide 32, so that when the inner slide 32 slides towards the side away from the inner protective layer 10 to provide the opening and closing part 41 with the above-mentioned activity space, the opening and closing part 41 can move towards the inner slide 32 under the action of the first elastic part 42.

[0073] It can be understood that the number of the first elastic members 42 corresponding to each opening and closing member 41 can be set to two or the like to ensure the stability of the sliding of the opening and closing member 41 under the action of the first elastic member 42. The position of the first elastic member 42 relative to the opening and closing member 41 can be selected according to actual needs, which is not specifically limited in the present application.

[0074] In the present embodiment, when one second section 2 is located at the top end of the flexible cable, when the upper half section corresponding to the second section 2 of the flexible cable is subjected to an external force, the external force acts on the second section 2 through the transverse member 62 and the elastic protrusion 65, and the second section 2 is forced to make the inner sliding member 32 slide towards the support member 31, and the second elastic member 33 plays a buffering role, and in the sliding process, the inner sliding member 32 makes the two opening and closing members 41 supported by the inner sliding member 32 close to each other, so that the two adjacent electrical units 20 of the inner sliding member 32 can have an inwardly biased activity space, and when the external force acts on the upper half section of the flexible cable, the first section 1 is also forced to act on the electrical unit 20, on the one hand, the pressure is dispersed and buffered through the cooperation of the outer sliding member 61 and the transverse member 62, and on the other hand, the activity space makes the electrical unit 20 when being pressed inwardly by the inner protective layer 10, the opening and closing member 41 provides an activity space for it at the same time, thereby avoiding that a large force directly presses the electrical unit 20 and causes damage to it.

[0075] In addition, when the bottom end of the flexible cable is placed on the ground, the top end of the flexible cable is subjected to force, and the bottom end of the flexible cable is also subjected to force to make the corresponding inner sliding member 32 slide, and the corresponding second elastic member 33 of the inner sliding member 32 buffers the pressure, so as to relieve the pressure on the top end of the flexible cable by simultaneously providing buffering through the two second elastic members 33.

[0076] It is worth noting that when the sections of the flexible cable corresponding to the other second sections 2 are subjected to an external force, the pressure resistance mechanism is substantially the same as described above, which will not be repeated here.

[0077] When a first section 1 is located at the top end of the soft cable (or the first section 1 is the main stress point), when the upper half section corresponding to the first section 1 of the soft cable is subjected to external force, on the one hand, the pressure is dispersed and buffered through the cooperation of the outer sliding member 61 and the horizontal moving member 62, and on the other hand, the inner protective layer 10 is stressed to extrude the electrical unit 20 to move inward, the electrical unit 20 further acts on the two opening and closing members 41, and the inclined wedge structure formed between the opening and closing members 41 and the inner sliding member 32 makes the inner sliding member 32 slide inward to extrude the second elastic member 33, and the second elastic member 33 can buffer the pressure. In addition, the two opening and closing members 41 are extruded by the electrical unit 20 to slide towards the side of the corresponding inner sliding member 32, thereby making the two opening and closing members 41 generally present an opening trend, thereby providing space for the electrical unit 20 to move inward, thereby avoiding the electrical unit 20 from being directly subjected to a large pressure and being damaged when the external force is concentrated on the section corresponding to the electrical unit 20.

[0078] It is worth noting that when the inclined wedge structure is formed by the abutting portion 321 and the second branch portion 412, the first inclined surface P1 and the second inclined surface P2 and the specific structure of the abutting portion 321 and the second branch portion 412, such as the wedge angle and the friction angle, can be set according to actual needs to avoid self-locking problems, ensure that the inner sliding member 32 can drive the second branch portion 412 to slide as a driving element, and the second branch portion 412 can also drive the inner sliding member 32 to slide as a driving element, and when the inner sliding member 32 is slid by the unilateral opening and closing member 41, the opening and closing member 41 on the other side of the inner sliding member 32 will not hinder the sliding of the inner sliding member 32.

[0079] Please refer to Figures 1 to 2 In an embodiment, the composite compression-resistant soft cable 100 further comprises an outer protective layer 50 wrapped around the outer periphery of the inner protective layer 10. The outer protective layer 50 comprises a shielding layer 51, a shielding insulation layer 52, an outer protective sleeve 53 and the like. In addition, according to the specific application scenario of the composite compression-resistant soft cable 100, the outer protective layer 50 can further comprise a waterproof layer, a fireproof layer and other necessary layer structures for constructing a soft cable.

[0080] In the foregoing, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art can understand that various changes and replacements can be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and replacements are within the scope defined by the present application.

Claims

1. A composite, pressure-softened electrical cable, characterized in that, The application relates to an electronic device, which comprises: an inner protective layer with a receiving cavity; an electronic unit located in the receiving cavity; an outer protective layer arranged at intervals on the outer periphery of the inner protective layer; an outer buffer assembly located between the outer protective layer and the inner protective layer, the outer buffer assembly comprising an outer sliding member and a horizontal moving member, one end of the outer sliding member being elastically connected to a first area of the inner protective layer, the other end of the outer sliding member being slidably connected to the outer protective layer; an inner buffer assembly comprising a support member and an inner sliding member, the inner sliding member being slidable relative to the support member, one end of the inner sliding member being elastically connected to the support member, the other end of the inner sliding member abutting a second area of the inner protective layer; the second area is provided with an elastic protrusion on the side close to the outer protective layer, the elastic protrusion is located on the sliding path of the horizontal moving member, the horizontal moving member can at least partially pass over the elastic protrusion and abut the elastic protrusion to move away from the side of the outer protective layer; an opening and closing assembly, one end of the opening and closing assembly being slidably connected to the support member, the other end of the opening and closing assembly abutting the electronic unit to the inner protective layer; wherein when the outer sliding member slides towards the side close to the inner protective layer, the outer sliding member can abut the horizontal moving member to slide around the inner protective layer and provide an inner pressure to the inner sliding member, based on the inner pressure, the inner sliding member slides towards the side away from the inner protective layer and abuts the opening and closing assembly to move away from the side of the electronic unit; the outer sliding member comprises an outer sliding part and a wedge part, one end of the outer sliding part being elastically connected to the first area of the inner protective layer, the other end of the outer sliding part being slidably connected to the outer protective layer; along the circumference of the inner protective layer, the wedge part is connected to one side of the sliding part, the wedge part is configured to abut the horizontal moving member to slide along the circumference of the inner protective layer; the opening and closing assembly comprises an opening and closing member and a first elastic member, one end of the opening and closing member being slidably connected to the support member, the other end of the opening and closing member abutting the electronic unit to the inner protective layer, the first elastic member is configured to provide an elastic force to the opening and closing member, the elastic force is configured to move the opening and closing member away from the side of the electronic unit.

2. The composite, pressure-softened cable of claim 1, wherein, The number of the electronic units is multiple, the number of the opening and closing assemblies and the inner sliding members is the same as that of the electronic units, and one inner sliding member is arranged between any two adjacent electronic units; the opening and closing assembly comprises two opening and closing members and two first elastic members, the two first elastic members respectively provide elastic forces to the two opening and closing members; one of the two opening and closing members is located between the first side of the electronic unit and the adjacent inner sliding member and abuts the first side, and the other opening and closing member is located between the second side of the electronic unit and the adjacent inner sliding member and abuts the second side.

3. The composite, pressure-softened cable of claim 2, wherein, the side wall of the inner sliding member is provided with a first inclined surface, the side of the opening and closing member close to the inner sliding member is provided with a second inclined surface, the first inclined surface and the second inclined surface are arranged in parallel, and the first inclined surface abuts the second inclined surface when the inner sliding member slides.

4. The composite crush-soft cable of claim 2, wherein, The opening and closing member is slidably connected to the support member, and the sliding direction of the opening and closing member is perpendicular to the sliding direction of the inner sliding member adjacent to the opening and closing member. The first elastic member is arranged along the sliding direction of the opening and closing member, one end of the first elastic member is elastically connected to the support member, and the other end of the first elastic member is elastically connected to the opening and closing member.

5. The composite, pressure-softened cable of claim 2, wherein, The support member comprises a center part and a plurality of extension parts, the plurality of extension parts are arranged around the outer circumferential surface of the center part, the plurality of extension parts are arranged correspondingly to the plurality of electric units, and one extension part is arranged between any two adjacent electric units. The plurality of inner sliding members are arranged correspondingly to the plurality of extension parts, and the inner sliding member is slidably connected to the corresponding extension part.

6. The composite, pressure-softened cable of claim 5, wherein, The opposite sides of the extension part are respectively provided with the opening and closing member, the two opening and closing members are slidably connected to the extension part, the sliding direction of the two opening and closing members is perpendicular to the sliding direction of the inner sliding member, and the two opening and closing members respectively abut two different electric units.

7. The composite, pressure-softened cable of claim 1, wherein, The inner sliding member comprises an inner sliding part and a support part, one end of the inner sliding part is elastically connected to the support member, the support part is connected to the other end of the inner sliding part, and the support part is configured to support the inner protective layer.

Images