Flexible cable fixing structure
By setting protrusions on the metal spring to fit into the groove of the flat cable and fixing it with a locking attachment, the problem of flat cables slipping in the fixing parts is solved, and stable fixing and high-strength connection of cables of different widths are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUEYANG DECHUANGDA TECHNOLOGY CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, flat cables are prone to sliding left and right in the fixing device, and cannot be effectively fixed when the size of the fixing device does not match the flat cable.
The device employs a metal spring structure. By setting protrusions on the metal spring to fit into the grooves on the outer surface of the flat cable and securing it with a locking attachment, the metal spring has a certain degree of elasticity to adapt to dimensional deviations.
It achieves stable fixation of flat cables, adapts to cables of different widths, improves fit and fixation effect, and reduces the dimensional accuracy requirements of metal springs, simplifying production.
Smart Images
Figure CN224520602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable structure technology, and in particular to a flexible cable fixing structure. Background Technology
[0002] Flexible cables are a common type of cable, widely used in power transmission, data transmission, and communication control. Flat cables are a common type of flexible cable, characterized by their flat cross-section. Flat cables typically consist of a flat outer protective layer and multiple core wires, arranged sequentially within the outer protective layer along its width.
[0003] During the installation of flat cables, fasteners (usually cable clips) are used to secure them to walls and other surfaces. However, in some applications, the size of the fasteners may not match the size of the flat cables (for example, the width of the fastener's slot may be greater than the width of the flat cable), causing the flat cables to slip laterally within the fasteners and making it impossible to secure them completely. Utility Model Content
[0004] The purpose of this invention is to provide a flexible cable fixing structure that can better fix flat cables, prevent flat cables from sliding left and right, and can adapt to the fixing of flat cables of different widths.
[0005] This utility model provides a flexible cable fixing structure, including a flat cable and a fixing component. The flat cable includes a flat outer protective layer and multiple core wires. The outer protective layer has a length direction, a width direction, and a thickness direction that are perpendicular to each other. The multiple core wires are arranged sequentially in the outer protective layer along the width direction. Along the thickness direction, grooves are provided on the outer surfaces of opposite sides of the outer protective layer, and the grooves extend along the length direction.
[0006] The fixing component includes a metal spring and a locking accessory; the metal spring includes a main board part, a side plate part and a cross plate part integrally connected, the side plate part and the cross plate part are respectively disposed on opposite sides of the main board part, the side plate part is bent and connected to the main board part, and the cross plate part is bent and connected to the side plate part;
[0007] The metal spring is provided with a slot, which is formed by the main board and the side plate, and the flat cable is located in the slot; the main board is provided with a protrusion on the side facing the flat cable, and the protrusion is locked in the groove;
[0008] The locking attachment is connected to the horizontal plate portion, and the locking attachment is used to fix the metal spring piece to a designated position.
[0009] In one possible implementation, the metal spring is made of stainless steel and has a thickness of 2mm-6mm.
[0010] In one possible implementation, the protrusion is an integral structure with the motherboard portion, and the protrusion is formed by bending the motherboard portion toward the side closer to the flat cable.
[0011] In one possible implementation, an insulating layer is provided on at least a portion of the surface of the metal spring, the insulating layer being disposed at least on the inner surface of the main board portion and the inner surface of the side plate portion.
[0012] In one feasible embodiment, the insulating layer is provided on the entire surface of the metal spring, the insulating layer being a rubber layer with a thickness of 1 mm to 5 mm.
[0013] In one feasible embodiment, a corrosion-resistant layer is provided on at least a portion of the surface of the metal spring, the corrosion-resistant layer being provided on at least the outer surface of the main board portion, the outer surface of the side plate portion, and the outer surface of the cross plate portion.
[0014] In one feasible manner, the corrosion-resistant layer is provided on the entire surface of the metal spring, and the thickness of the corrosion-resistant layer is 20 to 100 micrometers.
[0015] In one possible implementation, the fixing component further includes a thickening pad disposed on the side of the transverse plate portion away from the main plate portion along the thickness direction; the thickening pad is used to clamp the transverse plate portion between a designated position.
[0016] In one possible implementation, the lock accessory is a screw, and the cross plate has a screw hole through which the screw passes.
[0017] In one possible implementation, a plurality of grooves are provided on the outer surfaces of opposite sides of the outer protective layer, and the grooves on opposite sides of the outer protective layer correspond one-to-one.
[0018] The main board is provided with a plurality of protrusions, which are spaced apart along the width direction. The number of protrusions is greater than or equal to the number of grooves on each side of the outer protective layer, and at least some of the protrusions are respectively stuck in different grooves.
[0019] The flexible cable fixing structure provided by this utility model features protrusions on a metal spring sheet. These protrusions engage with grooves on the outer surface of a flat cable, effectively securing the cable and preventing lateral slippage. It is also adaptable to flat cables of varying widths. Furthermore, when the dimensions of the metal spring sheet slightly deviate from those of the flat cable, the spring sheet's elasticity allows it to adapt and deform during fixing with a locking attachment, compensating for the dimensional discrepancy. This not only improves the fit between the spring sheet and the flat cable, enhancing the fixing effect, but also reduces the dimensional accuracy requirements of the spring sheet, lowering production complexity. This flexible cable fixing structure is not only simple in design but also features high structural strength and a long service life for the metal spring sheet. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the flexible cable fixing structure in an embodiment of this utility model.
[0021] Figure 2 for Figure 1 A schematic diagram of the explosion structure.
[0022] Figure 3 for Figure 1 A cross-sectional schematic diagram.
[0023] Figure 4 This is a cross-sectional schematic diagram of the flexible cable fixing structure in another embodiment of the present invention.
[0024] Figure 5 This is a cross-sectional schematic diagram of the metal spring sheet in another embodiment of the present invention.
[0025] Figure 6 This is a cross-sectional schematic diagram of the metal spring sheet in another embodiment of the present invention.
[0026] Figure 7 This is a cross-sectional schematic diagram of the metal spring sheet in another embodiment of the present invention.
[0027] Figure 8 This is a cross-sectional schematic diagram of the metal spring sheet in another embodiment of the present invention.
[0028] Figure 9 This is a cross-sectional schematic diagram of the flexible cable fixing structure in another embodiment of the present invention. Detailed Implementation
[0029] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0030] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0031] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed by this utility model.
[0032] like Figures 1 to 3 As shown, this utility model embodiment provides a flexible cable fixing structure, including a flat cable 1 and at least one fixing component 2. The flat cable 1 includes a flat outer protective layer 11 and multiple core wires 12. The outer protective layer 11 has a length direction L, a width direction W, and a thickness direction that are perpendicular to each other. The multiple core wires 12 are sequentially arranged within the outer protective layer 11 along the width direction W (the multiple core wires 12 can be spaced apart within the outer protective layer 11 along the width direction W, or the multiple core wires 12 can be arranged adjacent to each other within the outer protective layer 11 along the width direction W). The outer protective layer 11 and the core wires 12 extend along the length direction L. The core wire 12 includes a conductor 121 and an insulation layer 122 covering the conductor 121. The conductor 121 is made of metal materials such as copper and aluminum, and the outer protective layer 11 and the insulation layer 122 can be made of insulating materials such as rubber, polyester, and fluoroplastics. Along the thickness direction T, grooves 111 are provided on the outer surfaces of opposite sides of the outer protective layer 11, and the grooves 111 extend continuously along the length direction L. For details on the specific structure of the flat cable 1, please refer to existing technologies (such as patents CN108573768A, CN203536089U, CN112164501A, etc.), which will not be elaborated here.
[0033] The fixing component 2 includes a metal spring 21 and a locking accessory 22. The metal spring 21 is made of metal and has a certain degree of elasticity. The metal spring 21 has a Z-shaped sheet structure and includes a main plate portion 211, a side plate portion 212, and a cross plate portion 213 integrally connected. The main plate portion 211 and the cross plate portion 213 are both arranged along the width direction W, and the side plate portion 212 is arranged along the thickness direction T. The side plate portion 212 and the cross plate portion 213 are respectively arranged on opposite sides of the main plate portion 211 along the width direction W. The side plate portion 212 is bent and connected to the main plate portion 211, and the cross plate portion 213 is bent and connected to the main plate portion 211. 13 is bent and connected to the side plate portion 212 (specifically, there are two side plate portions 212 and two horizontal plate portions 213, the two side plate portions 212 are bent and connected to the opposite sides of the main plate portion 211 respectively, and the two horizontal plate portions 213 are bent and connected to the two side plate portions 212 respectively); the side plate portion 212 is bent at 90° to the main plate portion 211, the horizontal plate portion 213 is bent at 90° to the side plate portion 212, and the main plate portion 211 and the horizontal plate portion 213 are approximately parallel.
[0034] The metal spring 21 has a slot 210, which is formed by the main board 211 and the side plates 212 on both sides. The flat cable 1 is located in the slot 210. The main board 211 has a protrusion 214 protruding towards the side close to the flat cable 1. The protrusion 214 is an elongated strip structure extending along the length direction L. The protrusion 214 corresponds to the groove 111, and the shape and size of the protrusion 214 and the groove 111 are adapted to each other. The protrusion 214 is locked in the groove 111, thereby limiting the flat cable 1 to the left and right (that is, limiting the flat cable 1 in the width direction W) by the protrusion 214.
[0035] The locking attachment 22 is connected to the horizontal plate portion 213 (specifically, the locking attachment 22 is connected to the horizontal plate portions 213 on opposite sides of the main plate portion 211). The locking attachment 22 is used to fix the metal spring piece 21 to a designated position, thereby securing the flat cable 1. The designated position varies depending on the application scenario; for example, the designated position can be a wall, equipment casing, pipe, etc.
[0036] Specifically, during installation, the metal spring 21 is first assembled with the flat cable 1. At this time, the flat cable 1 is located in the slot 210 of the metal spring 21, and the protrusion 214 on the metal spring 21 is engaged in the groove 111 on the outer surface of the flat cable 1, thereby preventing the flat cable 1 from sliding left and right in the width direction W within the slot 210, thus better securing the flat cable 1. Figure 3 As shown, when the width of the slot 210 is equal to the width of the flat cable 1, in addition to the motherboard portion 211 pressing against the flat cable 1, the side plates 212 on both sides will also contact the flat cable 1 to stably fix the flat cable 1. Figure 4As shown, when the width of the slot 210 is greater than the width of the flat cable 1 (i.e., the width of the slot 210 does not match the width of the flat cable 1), the flat cable 1 can also be prevented from sliding left and right in the width direction W within the slot 210 due to the locking and limiting effect of the protrusion 214; therefore, the fixing component 2 can be adapted to the fixing of flat cables 1 of different widths.
[0037] The flexible cable fixing structure provided by this utility model provides a protrusion 214 on the metal spring 21, which is then engaged in the groove 111 on the outer surface of the flat cable 1. This better fixes the flat cable 1, preventing it from slipping left or right, and can accommodate flat cables 1 of different widths. Furthermore, when the size of the metal spring 21 deviates slightly from the size of the flat cable 1, the metal spring 21, due to its elasticity, can adaptively deform when the locking attachment 22 is used to fix it, thus compensating for the dimensional deviation. This not only improves the fit between the metal spring 21 and the flat cable 1, thereby enhancing the fixing effect, but also reduces the dimensional accuracy requirements of the metal spring 21 and lowers production difficulty (for example, when the thickness of the slot 210 is slightly less than the thickness of the flat cable 1, the horizontal plate 213 can adaptively deform when the locking attachment 22 is used to fix the metal spring 21, allowing the horizontal plate 213 to fit and fix at the designated position). This flexible cable fixing structure is not only simple in structure, but also has high structural strength and long service life for the metal spring 21.
[0038] In one embodiment, the connection between the side plate portion 212 and the main plate portion 211 is a smooth transition, and the connection between the horizontal plate portion 213 and the side plate portion 212 is a smooth transition.
[0039] In one implementation, the metal spring 21 is made of stainless steel, giving it good structural strength and corrosion resistance. Of course, the metal spring 21 can also be made of other metals (such as nickel-based alloys). The thickness of the metal spring 21 is 2mm-6mm, giving it both good structural strength and a certain degree of elasticity.
[0040] In one embodiment, the protrusion 214 and the main board 211 are integral structures. The protrusion 214 is formed by bending the main board 211 toward the side close to the flat cable 1. At the same time, a recessed groove 216 is formed on the side of the main board 211 away from the flat cable 1, corresponding to the position of the protrusion 214.
[0041] Specifically, in manufacturing the metal spring 21, the metal spring 21 can be obtained by bending and stamping the metal sheet (specifically, during manufacturing, the metal sheet can be bent using a bending device to obtain a U-shaped main plate 211, side plate 212, and cross plate 213; then, a stamping machine is used to apply vertical pressure to the main plate 211 to stamp it, causing the main plate 211 to deform and form a protrusion 214). Of course, the metal spring 21 can also be obtained directly by casting, that is, the smelted liquid metal is injected into a pre-prepared mold by pouring, injection, suction, or other casting methods, and after cooling, the metal spring 21 of the corresponding shape can be obtained.
[0042] like Figures 1 to 3 As shown, in one embodiment, the outer protective layer 11 has multiple grooves 111 on its opposite outer surfaces, and the grooves 111 on opposite sides of the outer protective layer 11 correspond one-to-one along the thickness direction T; the multiple grooves 111 on each side of the outer protective layer 11 are arranged at intervals along the width direction W, and each groove 111 is located between two adjacent core wires 12. The main board portion 211 of the metal spring 21 has multiple protrusions 214, which are arranged at intervals along the width direction W. The number of protrusions 214 is greater than or equal to the number of grooves 111 on each side of the outer protective layer 11, and at least some of the protrusions 214 can be respectively engaged in different grooves 111.
[0043] like Figures 1 to 3 As shown, in one embodiment, the width of the slot 210 along the width direction W is equal to the width of the flat cable 1. The number of protrusions 214 on the metal spring 21 is equal to the number of grooves 111 on each side of the outer protective layer 11, and each protrusion 214 is respectively engaged in a different groove 111. For example, the metal spring 21 is provided with three protrusions 214, and each side of the outer protective layer 11 is provided with three grooves 111, and the three protrusions 214 on the metal spring 21 are respectively engaged in the three grooves 111 on one side of the outer protective layer 11.
[0044] like Figure 4 As shown, in another embodiment, the width of the slot 210 is greater than the width of the flat cable 1 along the width direction W. The number of protrusions 214 on the metal spring 21 is greater than the number of grooves 111 on each side of the outer protective layer 11, and some of the protrusions 214 are respectively engaged in different grooves 111. For example, as Figure 4 As shown, the metal spring 21 has three protrusions 214, and the outer protective layer 11 has a groove 111 on both sides. One of the protrusions 214 on the metal spring 21 is stuck in one of the grooves 111 on one side of the outer protective layer 11.
[0045] like Figures 1 to 3As shown, in one embodiment, the lock accessory 22 is a screw. The horizontal plate portion 213 of the metal spring 21 has a screw hole 215 for the screw to pass through. After the screw passes through the screw hole 215, the metal spring 21 is fixed to the designated position by a threaded connection. Specifically, screw holes 215 are provided on both sides of the horizontal plate portion 213 of the metal spring 21, and screws are connected to both sides of the horizontal plate portion 213 to stably fix the metal spring 21.
[0046] like Figure 3 As shown, in one embodiment, the depth of the slot 210 along the thickness direction T is equal to the thickness of the flat cable 1. Thus, when the metal spring 21 is fixed using the locking attachment 22, the horizontal plate portion 213 can directly contact the surface at the designated location for a stable connection.
[0047] like Figure 9 As shown, in another embodiment, the depth of the slot 210 along the thickness direction T is less than the thickness of the flat cable 1. In this case, the fixing component 2 also includes a thickening pad 23. Along the thickness direction T, the thickening pad 23 is disposed on the side of the horizontal plate portion 213 away from the main plate portion 211 (i.e., the lower side). The thickening pad 23 is used to clamp between the horizontal plate portion 213 and a designated position to compensate for the difference between the depth of the slot 210 and the thickness of the flat cable 1, so that the sum of the depth of the slot 210 and the thickness of the thickening pad 23 is equivalent to the thickness of the flat cable 1, thereby enabling the metal spring 21 to be stably fixed. The thickening pad 23 can specifically be a rubber pad.
[0048] In other embodiments, when the depth of the card slot 210 is greater than the thickness of the flat cable 1, a thickening pad 23 may be provided on the side of the flat cable 1 away from the motherboard portion 211 (i.e., the lower side) to compensate for the difference between the depth of the card slot 210 and the thickness of the flat cable 1.
[0049] like Figure 5 As shown, in another embodiment, an insulating layer 24 is provided on at least a portion of the surface of the metal spring 21. The insulating layer 24 is provided on at least the inner surface of the main board portion 211 and the inner surface of the side plate portion 212 (the inner surface refers to the surface near the slot 210). Protrusions 241 are provided on the insulating layer 24 in a shape corresponding to the protrusions 214. By providing the insulating layer 24, the insulation performance between the metal spring 21 and the flat cable 1 can be increased, reducing the risk of the metal spring 21 becoming electrified and improving safety. Simultaneously, the insulating layer 24 can protect the metal spring 21, preventing or reducing corrosion of the metal spring 21. Figure 5 As shown, in one embodiment, an insulating layer 24 is provided on the entire surface of the metal spring 21 (i.e., the metal spring 21 is embedded in the insulating layer 24). The insulating layer 24 is a rubber layer, and its thickness is 1mm to 5mm. Figure 6 As shown, in another embodiment, the insulating layer 24 may also be provided only on the inner surface of the main board portion 211 and the inner surface of the side plate portion 212. The insulating layer 24 and the metal spring 21 can be bonded and fixed by adhesive, or by hot pressing (i.e., under high temperature and high pressure, the rubber insulating layer 24 and the metal spring 21 are tightly bonded by hot pressing), or they can be connected by an insert vulcanization process (during manufacturing, the metal spring 21 is placed in a mold, and then molten rubber material is loaded into the mold. After heating and vulcanization and demolding, the insulating layer 24 is obtained. At this time, the insulating layer 24 and the metal spring 21 are embedded, fixed and connected as one, that is, the insulating layer 24 is prepared on the basis of the metal spring 21 by an insert vulcanization process).
[0050] like Figure 7 As shown, in another embodiment, a corrosion-resistant layer 25 is provided on at least a portion of the surface of the metal spring 21. The corrosion-resistant layer 25 is provided on at least the outer surface of the main board portion 211, the outer surface of the side plate portion 212, and the outer surface of the horizontal plate portion 213 (the outer surfaces of the main board portion 211 and the side plate portion 212 refer to the surfaces away from the slot 210, and the outer surface of the horizontal plate portion 213 refers to the surface closer to the main board portion 211, i.e., the upper surface of the horizontal plate portion 213. These parts are more susceptible to external corrosion). By providing the corrosion-resistant layer 25, the corrosion-resistant layer 25 can protect the metal spring 21, reduce or prevent corrosion of the metal spring 21, and improve its service life. Figure 7 As shown, in one embodiment, the corrosion-resistant layer 25 is only provided on the outer surface of the main board portion 211, the outer surface of the side plate portion 212, and the outer surface of the cross plate portion 213. Figure 8 As shown, in another embodiment, a corrosion-resistant layer 25 is provided on the entire surface of the metal spring 21. The corrosion-resistant layer 25 can specifically be a boron nitride coating, a silicon carbide coating, an epoxy resin coating, a polyurethane paint coating, etc. The thickness of the corrosion-resistant layer 25 is 20–100 micrometers. The corrosion-resistant layer 25 can be formed on the surface of the metal spring 21 by spraying.
[0051] It should be noted that when both an insulating layer 24 and a corrosion-resistant layer 25 are provided on the surface of the metal spring 21, the insulating layer 24 can be provided on a portion of the surface of the metal spring 21, and the corrosion-resistant layer 25 can be provided on another portion of the surface (e.g., ...). Figure 7As shown, the corrosion-resistant layer 25 is provided on the outer surface of the main board portion 211, the outer surface of the side plate portion 212, and the outer surface of the cross plate portion 213, and the insulating layer 24 is provided on the inner surface of the main board portion 211 and the inner surface of the side plate portion 212. Alternatively, the insulating layer 24 and the corrosion-resistant layer 25 can be provided on the entire surface of the metal spring 21 (generally, when the insulating layer 24 is provided on the entire surface of the metal spring 21, it is not necessary to provide an additional corrosion-resistant layer 25).
[0052] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A flexible cable fixing structure characterized by, The device includes a flat cable and a fixing assembly. The flat cable includes a flat outer protective layer and multiple core wires. The outer protective layer has two mutually perpendicular length directions, width directions, and thickness directions. The multiple core wires are sequentially arranged in the outer protective layer along the width direction. Along the thickness direction, grooves are provided on the outer surfaces of opposite sides of the outer protective layer, and the grooves extend along the length direction. The fixing component includes a metal spring and a locking accessory; the metal spring includes a main board part, a side plate part and a cross plate part integrally connected, the side plate part and the cross plate part are respectively disposed on opposite sides of the main board part, the side plate part is bent and connected to the main board part, and the cross plate part is bent and connected to the side plate part; The metal spring is provided with a slot, which is formed by the main board and the side plate, and the flat cable is located in the slot; the main board is provided with a protrusion on the side facing the flat cable, and the protrusion is locked in the groove; The locking attachment is connected to the horizontal plate portion, and the locking attachment is used to fix the metal spring piece to a designated position.
2. The flexible cable securing structure of claim 1, wherein, The metal spring is made of stainless steel and has a thickness of 2mm-6mm.
3. The flexible cable securing structure of claim 1, wherein, The protrusion is an integral part of the motherboard, and the protrusion is formed by bending the motherboard toward the side closer to the flat cable.
4. The flexible cable securing structure of claim 1, wherein, An insulating layer is provided on at least a portion of the surface of the metal spring, and the insulating layer is provided on at least the inner surface of the main board portion and the inner surface of the side plate portion.
5. The flexible cable securing structure of claim 4, wherein, The insulating layer is provided on the entire surface of the metal spring sheet. The insulating layer is a rubber layer and the thickness of the insulating layer is 1mm to 5mm.
6. The flexible cable securing structure of claim 1, wherein, The metal spring sheet has a corrosion-resistant layer on at least a portion of its surface, and the corrosion-resistant layer is provided on at least the outer surface of the main board, the outer surface of the side plate, and the outer surface of the cross plate.
7. The flexible cable securing structure of claim 6, wherein The entire surface of the metal spring is provided with the corrosion-resistant layer, and the thickness of the corrosion-resistant layer is 20 to 100 micrometers.
8. The flexible cable securing structure of claim 1, wherein, The fixing component also includes a thickening pad, which is disposed on the side of the horizontal plate portion away from the main plate portion along the thickness direction; the thickening pad is used to clamp the horizontal plate portion between the designated position.
9. The flexible cable securing structure of claim 1, wherein, The lock accessory is a screw, and the horizontal plate has a screw hole for the screw to pass through.
10. The flexible cable fixation structure of any one of claims 1-9, wherein, The outer protective layer has multiple grooves on its opposite outer surfaces, and the grooves on opposite sides of the outer protective layer correspond one-to-one. The main board is provided with a plurality of protrusions, which are spaced apart along the width direction. The number of protrusions is greater than or equal to the number of grooves on each side of the outer protective layer, and at least some of the protrusions are respectively stuck in different grooves.