Compression-resistant wire cable

Abstract

The utility model relates to the technical field of wires and cables, in particular to a compression-resistant wire and cable, which comprises a battery cell and an insulating layer wrapped outside the battery cell, a buffer layer with a honeycomb hole structure is sleeved outside the insulating layer, and a decompression layer is arranged on the outer surface of the buffer layer. The pressure reduction layer is composed of an upper clamping ring and a lower clamping ring which are matched with each other, pressure reduction blocks are arranged at the two ends of the upper clamping ring, pressure reduction grooves are correspondingly formed in the two ends of the lower clamping ring, and the pressure reduction blocks are inserted into the pressure reduction grooves in a clearance fit mode; when the cable is pressed, the pressure reduction blocks generate deformation displacement in the pressure reduction grooves, the upper clamping ring and the lower clamping ring extrude the buffer layer at the same time, honeycomb holes in the surface of the buffer layer generate compression deformation, a dual pressure relief structure is formed, and pressure graded absorption is achieved through the synergistic effect of the compression deformation of the honeycomb holes of the buffer layer and the annular deformation displacement of the clamping ring of the pressure reduction layer. And the stress transmitted to the battery cell is obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, and more specifically, to pressure-resistant wires and cables. Background Technology

[0002] Wires and cables refer to materials used for power, electrical and related transmission purposes.

[0003] During installation and use, electrical wires and cables are often subjected to external pressures, such as mechanical compression, heavy object pressure, or soil subsidence, which may cause deformation or even breakage of the internal core, affecting the stability and safety of power transmission. Traditional pressure-resistant cables often employ a single buffer structure, such as a filler layer or a thickened insulation layer, but their buffering effect is limited, and they are prone to localized structural failure due to stress concentration under pressure. Furthermore, the synergistic effect of the pressure-reducing layer and the buffer layer in existing technologies is insufficient, making it difficult to achieve multi-level pressure dispersion.

[0004] Therefore, there is an urgent need for pressure-resistant wires and cables to improve the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-resistant wire and cable that achieves graded pressure absorption through the synergistic effect of the honeycomb pore compression deformation of the buffer layer and the ring-shaped displacement of the pressure-reducing layer, significantly reducing the stress transmitted to the battery cell, thereby solving the problems mentioned in the background art, namely:

[0006] During installation and use, electrical wires and cables are often subjected to external pressures, such as mechanical compression, heavy object pressure, or soil subsidence, which may cause deformation or even breakage of the internal core, affecting the stability and safety of power transmission.

[0007] To achieve the above objectives, this utility model provides a pressure-resistant wire and cable, including a battery core and an insulation layer wrapped around the battery core. A buffer layer with a honeycomb structure is sleeved on the outside of the insulation layer, and a pressure-reducing layer is provided on the outer surface of the buffer layer.

[0008] The pressure relief layer is composed of an upper retaining ring and a lower retaining ring that cooperate with each other. The upper retaining ring has pressure relief blocks at both ends, and the lower retaining ring has corresponding pressure relief grooves at both ends. The pressure relief blocks are inserted into the pressure relief grooves in a clearance fit manner.

[0009] When the cable is under pressure, the pressure reducing block deforms and displaces within the pressure reducing groove. At the same time, the upper and lower retaining rings squeeze the buffer layer, causing the honeycomb pores on the surface of the buffer layer to undergo compression deformation, forming a dual pressure relief structure.

[0010] In the above technical solution, the pressure-reducing block of the upper retaining ring undergoes lateral deformation displacement within the pressure-reducing groove of the lower retaining ring with clearance fit to disperse the pressure. At the same time, the upper and lower retaining rings squeeze the buffer layer, causing its honeycomb structure to undergo longitudinal compression deformation. Through the synergistic effect of lateral displacement and longitudinal deformation, the external pressure is converted into elastic potential energy and released evenly, thereby effectively alleviating the mechanical stress impact on the cable.

[0011] Based on this, the honeycomb holes on the outer surface form a gradient compression characteristic due to the gradual increase in pore size from the inside to the outside. The outer layer of large-diameter pore walls absorbs the impact through elastic deformation first, while the inner layer of small-diameter structure maintains the support stability. At the same time, the pressure-reducing block with rounded bevels slides laterally along the pressure-reducing groove of the elastic damping coating. Through the controllable displacement within a gap range of 5-10mm, the stress is released, and the concentrated pressure is converted into elastic potential energy and frictional heat energy dissipated in layers, realizing dynamic adaptive pressure protection.

[0012] In another technical solution, the buffer layer is made of closed-cell foam material, whose honeycomb cells have a regular hexagonal structure in their natural state and can be transformed into a parallelogram structure under pressure.

[0013] The pressure-reducing block has a trapezoidal cross-section, with its top width being smaller than its bottom width, and the inner cavity shape of the pressure-reducing groove forms a progressive contact fit with the pressure-reducing block.

[0014] In this technical solution, when the cable is under pressure, the hexagonal honeycomb pores in the closed-cell foam material of the buffer layer gradually transform into a parallelogram structure after being subjected to longitudinal pressure. This absorbs the impact energy through geometric deformation and maintains the storage of closed-cell elastic potential energy. At the same time, the axially arranged trapezoidal cross-section pressure-reducing blocks and pressure-reducing grooves form a progressive contact. The trapezoidal design, which is narrow at the top and wide at the bottom, allows the pressure to be evenly distributed along the inclined side to the surface of the elastic damping coating. Through the overall deformation of the ring splicing structure, the external pressure is transformed into a triple energy dissipation mechanism of honeycomb pore elastic deformation, trapezoidal surface friction damping, and closed-cell gas compression, thus achieving multi-dimensional pressure resistance protection.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This pressure-resistant wire and cable achieves graded pressure absorption through the synergistic effect of the honeycomb pore compression deformation of the buffer layer and the ring-shaped variable displacement of the pressure-reducing layer. This significantly reduces the stress transmitted to the core. The elastic polymer pore wall combined with the pore size gradient design (smaller inside and larger outside) enhances the radial buffering capacity and avoids stress concentration. Under pressure, the regular hexagonal honeycomb pores transform into parallelograms, which can directionally absorb energy. The 5-10mm gap fit allows the pressure-reducing block to move flexibly within the groove. Combined with the elastic damping coating, it reduces vibration and impact and avoids rigid collision damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the embodiment;

[0019] Figure 3 This is a schematic diagram of the pressure relief layer structure in an embodiment.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 100. Battery cell; 110. Insulation layer; 120. Buffer layer; 121. Honeycomb hole; 130. Pressure reducing layer; 131. Upper retaining ring; 132. Pressure reducing block; 133. Lower retaining ring; 134. Pressure reducing groove. Detailed Implementation

[0022] 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.

[0023] For now, please refer to Figures 1-3 As shown, this embodiment provides a pressure-resistant wire and cable, including a buffer layer 120 and a pressure-reducing layer 130 provided on the outer surface of the buffer layer 120. When the cable is compressed, the pressure-reducing block 132 deforms and displaces in the pressure-reducing groove 134. At the same time, the upper retaining ring 131 and the lower retaining ring 133 squeeze the buffer layer 120, causing the honeycomb holes 121 on the surface of the buffer layer 120 to undergo compression deformation, forming a dual pressure relief structure.

[0024] During implementation, when the cable is under pressure, the pressure-reducing block 132 of the upper retaining ring 131 in the pressure-reducing layer 130 undergoes lateral sliding deformation along the pressure-reducing groove 134 in the lower retaining ring 133. The trapezoidal cross-section pressure-reducing block 132 disperses shear stress through progressive contact with a narrow top and wide bottom. At the same time, the annular splicing structure promotes uniform pressure transmission along the axial direction. Under the extrusion action, the closed-cell foam material of the buffer layer 120 gradually transforms the regular hexagonal honeycomb cells 121 into a parallelogram structure. Through geometric phase change, it absorbs longitudinal compression energy. The elastic restoring force of the honeycomb cell 121 wall and the frictional damping formed by the sliding of the pressure-reducing block 132 work together to transform the external mechanical stress into multi-stage dissipation of closed-cell gas compression energy and elastic deformation potential energy, thereby achieving dynamic adaptive pressure protection.

[0025] See Figure 1 As shown, the insulating layer 110 wrapped around the outer surface of the battery cell 100 achieves graded pressure absorption through the combined action of the compression deformation of the external pressure reducing device and the ring displacement of the pressure reducing layer 130.

[0026] Figure 2 In the process, when the cable is under pressure, the hexagonal honeycomb cells 121 in the closed-cell foam material of the buffer layer 120 gradually transform into a parallelogram structure after being compressed. Through geometric deformation, it absorbs longitudinal compression energy and stores elastic potential energy. At the same time, the trapezoidal cross-section pressure-reducing block 132 of the pressure-reducing layer 130 slides laterally in the pressure-reducing groove 134 along the axial direction. It uses the progressive contact with a narrow top and wide bottom to disperse shear stress. Combined with the frictional energy dissipation effect of the elastic damping coating, the longitudinal compression deformation and lateral displacement are coupled with each other, and the mechanical pressure is converted into multi-stage dissipation of elastic potential energy of honeycomb cells 121, closed-cell gas compression energy and frictional heat energy, so as to achieve dual dynamic pressure resistance protection.

[0027] Additionally, see Figure 3 As shown, the trapezoidal cross-section pressure-reducing block 132 of the upper retaining ring 131 slides along the inner cavity of the pressure-reducing groove 134 of the lower retaining ring 133. Through progressive contact fit, the pressure is evenly distributed along the trapezoidal inclined surface, reducing local stress concentration. The ring splicing structure ensures that the pressure is evenly transmitted along the circumference of the cable, while allowing the trapezoidal pressure-reducing block 132 to slide laterally within a gap range of 5-10mm. The impact energy is absorbed through frictional damping and elastic deformation. The wide cross-section design at the bottom of the trapezoid enhances the structural stability, forming a dual pressure-resistant mechanism of graded release of lateral stress and uniform distribution of radial pressure.

[0028] In this embodiment, when the pressure-resistant wire and cable is used under pressure, the closed-cell foam buffer layer 120 outside the insulation layer 110 undergoes a geometric phase change under longitudinal pressure due to the uniformly distributed hexagonal honeycomb cells 121. It gradually transforms into a parallelogram structure, absorbing impact energy and storing the compression potential energy of the closed-cell gas through the deformation of the elastic polymer pore walls. At the same time, the gradient design of the honeycomb cell 121 with the pore diameter gradually increasing from the inside to the outside allows the outer large-diameter area to deform and buffer first, while the inner small-diameter structure maintains the support stability, forming a staged energy absorption mechanism.

[0029] The external pressure-reducing layer 130 responds to pressure through the coordinated action of the annularly spliced ​​upper retaining ring 131 and lower retaining ring 133. The trapezoidal cross-section pressure-reducing block 132 slides along the axially arranged pressure-reducing grooves 134, using a progressive contact fit to evenly distribute the pressure along the inclined surface to the surface of the elastic damping coating, reducing local stress concentration. The 5-10mm gap fit allows the rounded bevel at the end of the pressure-reducing block 132 to generate lateral displacement during sliding, dissipating shear stress through frictional damping. The longitudinal compression deformation of the honeycomb pores 121 and the lateral sliding of the pressure-reducing mechanism are coupled together, ultimately converting mechanical pressure into multi-stage dissipation of closed-cell gas compression energy, elastic potential energy, and frictional heat energy, achieving coordinated axial and radial pressure-resistant protection.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant wire and cable, comprising a core (100) and an insulation layer (110) surrounding the core (100), characterized in that: The insulating layer (110) is sleeved with a buffer layer (120) with a honeycomb hole (121) structure, and the outer surface of the buffer layer (120) is provided with a pressure reducing layer (130); The pressure relief layer (130) is composed of an upper retaining ring (131) and a lower retaining ring (133) that cooperate with each other. The upper retaining ring (131) is provided with pressure relief blocks (132) at both ends, and the lower retaining ring (133) is provided with pressure relief grooves (134) at both ends. The pressure relief blocks (132) are inserted into the pressure relief grooves (134) in a clearance fit manner. When the cable is under pressure, the pressure reducing block (132) deforms and displaces in the pressure reducing groove (134). At the same time, the upper retaining ring (131) and the lower retaining ring (133) squeeze the buffer layer (120), causing the honeycomb holes (121) on the surface of the buffer layer (120) to undergo compression deformation, forming a dual pressure relief structure.

2. The compression-resistant wire and cable according to claim 1, characterized in that: The honeycomb pores (121) of the buffer layer (120) are uniformly distributed on its outer surface, and the pore walls are made of elastic polymer material. The pore size of the honeycomb pores (121) gradually increases radially from the inside to the outside.

3. The compression-resistant wire and cable according to claim 1, characterized in that: The clearance between the pressure reducing block (132) and the pressure reducing groove (134) is controlled within the range of 5-10mm. The end of the pressure reducing block (132) is provided with an arc-shaped bevel, and the inner wall of the pressure reducing groove (134) is provided with an elastic damping coating.

4. The compression-resistant wire and cable according to claim 1, characterized in that: The buffer layer (120) is made of closed-cell foam material, and its honeycomb pores (121) are in a regular hexagonal structure in the natural state, and can be transformed into a parallelogram structure when compressed.

5. The compression-resistant wire and cable according to claim 1, characterized in that: The cross-section of the pressure-reducing block (132) is trapezoidal, with its top width being smaller than its bottom width. The inner cavity shape of the pressure-reducing groove (134) forms a progressive contact fit with the pressure-reducing block (132).

6. The compression-resistant wire and cable according to claim 1, characterized in that: The upper retaining ring (131) and the lower retaining ring (133) adopt a ring splicing structure.

7. The compression-resistant wire and cable according to claim 1, characterized in that: The pressure reducing block (132) and the pressure reducing groove (134) are arranged along the cable axis.

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