Flexible flat cable with pressure resistance function

Abstract

The utility model discloses a flexible flat cable with pressure resistance function, including wire, shell, buckle structure and air bag, wire horizontal setting is in the shell, and the clearance between both is equipped with buckle structure and air bag, and the buckle structure is by the left oblique buckle and right oblique buckle of circumferential alternate arrangement is formed, and left oblique buckle and right oblique buckle are all with wire parallel setting, and left oblique buckle and right oblique buckle realize pressure even dispersion through accurate cooperation, and the micro air bag of setting in the buckle forms the flexible buffer layer, and when pressure exceeds threshold value, air bag breaks and triggers rigid protection mechanism, and left oblique buckle and right oblique buckle are respectively along the automatic alignment of preset inclination angle and are inserted, and form annular rigid framework, and buckle structure is locked displacement through the cooperation of positioning pin and positioning hole, and even dispersion of the remaining pressure, avoid pressure concentration, make flexible flat cable have good pressure resistance function.

Description

Technical Field

[0001] This utility model relates to the field of flexible flat cable protection technology, specifically a flexible flat cable with pressure resistance function. Background Technology

[0002] In patent application CN119418990A, published on February 11, 2025, entitled "A Flexible Flat Cable with Compression Resistance," this invention discloses a flexible flat cable with compression resistance, belonging to the field of flexible flat cable protection technology. The key technical point is a flexible flat cable with compression resistance, comprising a flat cable body and a protective mechanism disposed on the outside of the flat cable body for protection. The protective mechanism includes a lower housing and an upper housing, the lower housing and the upper housing having the same structure and being symmetrically arranged. The flat cable body is located between the lower housing and the upper housing to prevent damage from pressure. The upper housing has a through hole, baffles are fixedly disposed on both sides below the upper housing, and a placement groove is formed inside the upper housing, with cushioning cotton for protecting the flat cable body fixedly disposed inside the placement groove. The advantages are as follows: The flat line body is equipped with a lower shell and an upper shell on its outer side. When a foreign object comes into contact with the connecting pipe, the air in the airflow channel is squeezed into the cavity inside the protective frame. The pressure continues downward and is transmitted to the lower shell and upper shell through the connecting pipe. The pressure squeezes the buffer cotton, causing some air inside the buffer cotton to enter the protective frame. This allows the airflow to first expel the air, reducing the pressure damage to the flat line body. Some air remains in the buffer cotton, reducing the pressure on the flat line body. The buffer cotton below the flat line body, along with the lower shell and connecting pipe, protects the top of the flat line body from the presence of foreign objects and the bidirectional squeezing force that could damage the flat line body. The wear-resistant coating increases wear resistance and prevents the lower shell from being damaged by friction under oblique pressure, thus preventing gas leakage and weakening the protection of the flat line body.

[0003] In the aforementioned patents or prior art, users insert both ends of the flexible flat cable into different devices. The outer side of the conductor is wrapped with an insulation layer or protective layer. The pressure resistance of the flexible flat cable is achieved by using a polymer material. However, due to different user environments, the flexible flat cable will be subjected to different external pressures during use. External pressure can cause the conductor to break or the insulation layer to be damaged, affecting the service life of the flexible flat cable. Utility Model Content

[0004] The purpose of this invention is to provide a flexible flat cable with pressure resistance to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible flat cable with pressure resistance, comprising: a conductor, a shell, and a snap-fit ​​structure;

[0006] The wires are set horizontally, and an outer shell is set on the outside of the wires. A snap-fit ​​structure is set between the outer shell and the wires. The pressure is distributed through the snap-fit ​​structure to realize the pressure resistance function of the cable.

[0007] The buckle structure includes multiple sets of left-angled buckles and multiple sets of right-angled buckles. The left-angled buckles and right-angled buckles are circumferentially set on the surface of the wire. Each set of left-angled buckles and each set of right-angled buckles is parallel to the axis of the wire. Each set of left-angled buckles and each set of right-angled buckles are alternately set. Through the precise cooperation of the left-angled buckles and right-angled buckles, the pressure on the ribbon cable is evenly distributed to the entire structure.

[0008] Furthermore, the left-angled buckle is tilted to the left by 5 to 15 degrees, and the right-angled buckle is tilted to the right by 5 to 15 degrees.

[0009] Furthermore, each set of left-angled buckles includes multiple left positioning pins and multiple left positioning holes. Each left positioning pin matches each left positioning hole. The left positioning holes are arranged along the long axis of the wire. The left positioning hole is a sphere with a groove. One end of the left positioning pin is fixed to the inner surface of the outer shell, and the other end of the left positioning pin can be inserted into the left positioning hole.

[0010] Furthermore, a set of right oblique buckles is fixed between each pair of adjacent left oblique buckles. The right oblique buckles are in contact with the left oblique buckles on both sides. Each set of right oblique buckles includes multiple right positioning pins and multiple right positioning holes. Each right positioning pin matches each right positioning hole. The right positioning holes are arranged along the long axis of the wire. The right positioning hole is a sphere with a groove. One end of the right positioning pin is fixed to the inner surface of the outer shell, and the other end of the right positioning pin can be inserted into the right positioning hole.

[0011] Furthermore, the lower end of each left locating pin is inserted into the left locating hole, and the lower end of each right locating pin is inserted into the right locating hole.

[0012] Furthermore, multiple airbags are provided between the outer shell and the lower end of the buckle structure. Each airbag is connected to an adjacent set of left oblique buckles and a set of right oblique buckles. The four corners of the airbag are pierced by two adjacent left positioning pins and two adjacent right positioning pins.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the flexible flat cable with pressure resistance is reasonable and has the following advantages:

[0014] (1) This technical solution embeds an independent micro airbag between the left and right oblique buckles that are alternately set in the outer ring of the conductor to form a first-level flexible buffer layer. When the cable is subjected to external pressure, the micro airbag absorbs the impact energy quickly through elastic deformation and delays the transmission of pressure to the core area of ​​the conductor. When the pressure exceeds the bearing limit of the airbag, the airbag ruptures and triggers the second-level rigid protection mechanism. The small tilt angle design of the left and right oblique buckles allows them to automatically align and insert along a preset trajectory under the drive of external force, forming a circumferentially continuous ring rigid skeleton. After the buckles are inserted, the precise cooperation between the left positioning pin and the left positioning hole, and the right positioning pin and the right positioning hole can completely lock the displacement, and evenly distribute the remaining pressure to the entire ring structure to avoid stress concentration leading to conductor breakage or insulation layer damage. Through the synergistic effect of graded anti-pressure protection mechanism and dynamic energy dissipation, the anti-pressure function of the cable is realized.

[0015] (2) This technical solution achieves self-locking stress dispersion and cable morphology stability under pressure by using the tilt angle and staggered layout of the left and right oblique buckles. The left and right oblique buckles are arranged circumferentially at a small angle and are staggered to form a "fish scale" interlocking structure. When the cable is under pressure, the tilt angle guides the buckles to move directionally along the pressure direction, causing the positioning pins of adjacent buckles to be accurately inserted into the corresponding positioning holes, completing multi-point synchronous insertion and forming a circumferentially distributed rigid support node. During this process, the insertion sequence of the buckle group is naturally controlled by the pressure propagation path, ensuring that the stress diffuses circumferentially through the insertion node, avoiding the twisting or delamination of the wire core caused by local pressure in traditional cables. The left and right oblique buckles are set parallel to the conductor, preserving the flexibility of the cable when it is not under pressure, ensuring its flexibility in bending and winding scenarios. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 Front structural diagram;

[0019] Figure 4 This is a three-dimensional structural diagram of the buckle structure in this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the left and right positioning holes in this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the airbag in this utility model;

[0022] In the diagram: 1. Wire; 2. Buckle structure; 21. Left oblique buckle; 211. Left positioning pin; 212. Left positioning hole; 22. Right oblique buckle; 221. Right positioning pin; 222. Right positioning hole; 3. Airbag; 4. Outer shell. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 The present invention provides a technical solution as follows:

[0025] Example 1:

[0026] A flexible flat ribbon cable with pressure resistance is provided, comprising: a conductor 1, a housing 4, and a snap-fit ​​structure 2;

[0027] The conductor 1 is set horizontally, and the outer shell 4 is set on the outside of the conductor 1. A snap-fit ​​structure 2 is set in the gap between the outer shell 4 and the conductor 1. The pressure is dispersed by the snap-fit ​​structure 2 to realize the pressure resistance function of the cable.

[0028] The buckle structure 2 includes multiple sets of left-angled buckles 21 and multiple sets of right-angled buckles 22. The left-angled buckles 21 and right-angled buckles 22 are circumferentially arranged on the surface of the conductor 1. Each set of left-angled buckles 21 and each set of right-angled buckles 22 is parallel to the axis of the conductor 1. Each set of left-angled buckles 21 and each set of right-angled buckles 22 are alternately arranged. Through the precise cooperation of the left-angled buckles 21 and right-angled buckles 22, the pressure on the ribbon cable is evenly distributed to the entire structure.

[0029] The left-angled buckle 21 is tilted to the left by 5 to 15 degrees, and the right-angled buckle 22 is tilted to the right by 5 to 15 degrees.

[0030] Each set of left-angled buckles 21 includes multiple left positioning pins 211 and multiple left positioning holes 212. Each left positioning pin 211 matches each left positioning hole 212. The left positioning holes 212 are arranged along the long axis of the wire 1. The left positioning hole 212 is a sphere with a groove. One end of the left positioning pin 211 is fixed to the inner surface of the outer shell 4, and the other end of the left positioning pin 211 can be inserted into the left positioning hole 212.

[0031] A set of right oblique buckles 22 is fixed between each pair of adjacent left oblique buckles 21. The right oblique buckles 22 are in contact with the left oblique buckles 21 on both sides. Each set of right oblique buckles 22 includes multiple right positioning pins 221 and multiple right positioning holes 222. Each right positioning pin 221 matches each right positioning hole 222. The right positioning holes 222 are arranged along the long axis of the wire 1. The right positioning hole 222 is a sphere with a groove. One end of the right positioning pin 221 is fixed to the inner surface of the outer shell 4, and the other end of the right positioning pin 221 can be inserted into the right positioning hole 222.

[0032] The lower end of each left locating pin 211 is inserted into the left locating hole 212, and the lower end of each right locating pin 221 is inserted into the right locating hole 222.

[0033] Multiple airbags 3 are provided between the lower end of the outer shell 4 and the buckle structure 2. Each airbag 3 is connected to an adjacent set of left oblique buckles 21 and a set of right oblique buckles 22. The four corners of the airbag 3 are all passed through by two adjacent left positioning pins 211 and two adjacent right positioning pins 221.

[0034] Working principle: When using it, the user first connects both ends of the ribbon cable to the device being used. During use, the ribbon cable will be subjected to stress due to the environment.

[0035] When the ribbon cable is subjected to external pressure, the pressure first acts on the micro air bladders 3 distributed circumferentially on the outer ring of the conductor 1. These air bladders 3 are made of elastic material and filled with inert gas or low-density foam. They have controllable deformation capability and rupture threshold. In the initial stage of pressure, the micro air bladders 3 absorb the impact force through elastic compression and release the pressure transmission to the inner conductor 1, thereby avoiding the instantaneous pressure overload that could cause the conductor 1 to break or the insulation layer to be damaged.

[0036] When the pressure is too high, causing the micro airbag 3 to rupture, the pressure is directed towards the alternating left and right oblique latches 21 and 22 on the outer ring of the wire 1. Because the left oblique latch 21 is tilted to the left at a slight angle and the right oblique latch 22 is tilted to the right at a slight angle, when subjected to pressure, the tilt angle will guide the left positioning pin 211 and the right positioning pin 221 to slide in the direction of pressure. Under the action of pressure, the positioning pins of the left oblique latch 21 and the right oblique latch 22 automatically align with the corresponding left positioning hole 212 and right positioning hole 222, and complete the insertion along the trajectory of the tilt angle. Since the left oblique latch 21 and the right oblique latch 22 are arranged in a circumferential staggered manner, the insertion process will form a multi-point linkage ring rigid skeleton, which will evenly distribute the pressure that was originally concentrated in a local area to the entire outer ring of the cable, improve the compressive strength of the cable, and effectively prevent the wire 1 from deforming and breaking.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flexible flat ribbon cable with pressure resistance function. Its features are, Includes: wire (1), housing (4) and snap-fit ​​structure (2); The conductor (1) is set horizontally, and the outer shell (4) is set on the outside of the conductor (1). The gap between the outer shell (4) and the conductor (1) is provided with the buckle structure (2). The buckle structure (2) disperses the pressure and realizes the pressure resistance function of the cable. The buckle structure (2) includes multiple sets of left-angled buckles (21) and multiple sets of right-angled buckles (22). The left-angled buckles (21) and the right-angled buckles (22) are circumferentially arranged on the surface of the conductor (1). Each set of left-angled buckles (21) and each set of right-angled buckles (22) are parallel to the axis of the conductor (1). Each set of left-angled buckles (21) and each set of right-angled buckles (22) are alternately arranged. Through the precise cooperation of the left-angled buckles (21) and the right-angled buckles (22), the pressure on the cable is evenly distributed to the entire structure.

2. The flexible flat cable with pressure resistance according to claim 1, characterized in that, The left oblique buckle (21) is tilted to the left by 5 to 15 degrees, and the right oblique buckle (22) is tilted to the right by 5 to 15 degrees.

3. The flexible flat cable with pressure resistance according to claim 1, characterized in that, Each set of left oblique buckles (21) includes multiple left positioning pins (211) and multiple left positioning holes (212). Each left positioning pin (211) and each left positioning hole (212) are matched with each other. The left positioning holes (212) are arranged along the long axis of the wire (1). The left positioning hole (212) is a sphere with a groove. One end of the left positioning pin (211) is fixed to the inner surface of the outer shell (4), and the other end of the left positioning pin (211) can be inserted into the left positioning hole (212).

4. A flexible flat cable with pressure resistance according to claim 3, characterized in that, Between each pair of adjacent left oblique buckles (21), there is a set of right oblique buckles (22). The right oblique buckles (22) are in contact with the left oblique buckles (21) on both sides. Each set of right oblique buckles (22) includes multiple right positioning pins (221) and multiple right positioning holes (222). Each right positioning pin (221) matches each right positioning hole (222). The right positioning holes (222) are arranged along the long axis of the wire (1). The right positioning hole (222) is a sphere with a groove. One end of the right positioning pin (221) is fixed to the inner surface of the outer shell (4). The other end of the right positioning pin (221) can be inserted into the right positioning hole (222).

5. A flexible flat cable with pressure resistance according to claim 4, characterized in that, The lower end of each of the left positioning pins (211) is inserted into the left positioning hole (212), and the lower end of each of the right positioning pins (221) is inserted into the right positioning hole (222).

6. A flexible flat cable with pressure resistance according to claim 5, characterized in that, Multiple airbags (3) are provided between the outer shell (4) and the lower end of the buckle structure (2). Each airbag (3) is connected to an adjacent set of left oblique buckles (21) and a set of right oblique buckles (22). The four corners of the airbag (3) are all passed through by two adjacent left positioning pins (211) and two adjacent right positioning pins (221).

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