Power plug fixing device and power connection cord

CN122716629APending Publication Date: 2026-09-08SHENZHEN LINEWELL INDUSTRY CO LTD
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Patent Information

Application Number
CN202610949851.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-29
Publication Date
2026-09-08

AI Technical Summary

Technical Problem

[0003]本申请提供一种电源插头固定装置和电源连接线,以解决现有的电源插头在插拔过程中,操作人员通常直接握持电源插头的胶壳施力,插拔受力面积较小且施力不均,容易出现插装不到位的情况,导致电源插头与功能元件的针座接触不良,影响电能传输的稳定性,以及降低了电源插头与功能元件的针座的使用寿命的技术问题

Benefits of technology

[0014]In the technical solution of the power plug fixing device and power connection cable proposed in this application embodiment, on the one hand, by using a support bracket as a supporting skeleton, the support bracket includes a first support plate and a second support plate that are bent, and a first display structure and a second display structure are respectively fixedly connected to the first support plate and the second support plate. The power plug is fixedly connected to the first display structure through a plug bracket structure, thereby increasing the force-bearing area during the insertion and removal of the power plug. As a result, when the operator inserts or removes the power plug, the force can be evenly transmitted to the power plug through the support bracket, avoiding the problem of uneven force application caused by directly holding the rubber shell of the power plug in the traditional way. This improves the stability and accuracy of the connection between the power plug and the pin socket of the functional component, and fundamentally solves the problem of the connection between the power plug and the functional component. This design addresses the issue of improper pin insertion, ensuring tight contact between the power plug and the functional component's pins, thus improving the stability of power transmission. Simultaneously, it reduces the risk of deformation or damage to the power plug and functional component's pins due to uneven stress, lowering the failure rate of the power cable and extending their service life. Furthermore, by fitting the plug bracket structure around the power plug of the power cord body, it provides physical protection, reducing external damage. Finally, the first and second display structures utilize a support bracket to achieve different installation spaces and display angles, optimizing the overall assembly layout of the power cable and enhancing the overall structural compactness and aesthetics.

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Abstract

This application provides a power plug fixing device and a power connection cable. The power plug fixing device includes a support bracket, a first display structure, a second display structure, and a plug bracket structure. The support bracket includes a first support plate and a second support plate, with the first support plate bent relative to the second support plate. The back of the first display structure is fixedly connected to the first support plate. The back of the second display structure is fixedly connected to the second support plate. The plug bracket structure is fixedly connected to the back of the first display structure and is used to fit around the outside of the power plug of the power cord body, thereby increasing the force-bearing area during the insertion and removal of the power plug. This allows the force applied by the operator during insertion and removal to be evenly transmitted to the power plug through the support bracket, improving the stability and accuracy of the connection between the power plug and the pin socket of the functional component, and achieving tight contact between the power plug and the pin socket of the functional component.
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Description

Technical Field

[0001] This application relates to the field of computer technology, and in particular to a power plug fixing device and a power connection cable. Background Technology

[0002] In the assembly and use of electronic and electrical equipment, the power plug, as a key connector for power transmission, directly affects the normal operation and lifespan of the equipment due to the stability of the connection between the power plug and the pin socket of the functional component. Currently, during the insertion and removal of existing power plugs, operators typically hold the plug's housing directly and apply force. This results in a small force-bearing area and uneven force application, easily leading to incomplete insertion. This causes poor contact between the power plug and the pin socket of the functional component, affecting the stability of power transmission and reducing the lifespan of both the power plug and the pin socket. Summary of the Invention

[0003] This application provides a power plug fixing device and a power connection cable to solve the technical problem that, during the insertion and removal of existing power plugs, operators usually directly hold the plastic shell of the power plug and apply force. The force application area is small and uneven, which easily leads to improper insertion, resulting in poor contact between the power plug and the pin socket of the functional component, affecting the stability of power transmission, and reducing the service life of the power plug and the pin socket of the functional component.

[0004] In a first aspect, this application provides a power plug fixing device, including a support bracket, a first display structure, a second display structure, and a plug bracket structure. The support bracket includes a first support plate and a second support plate, the first support plate being bent relative to the second support plate. The back of the first display structure is fixedly connected to the first support plate. The back of the second display structure is fixedly connected to the second support plate. The plug bracket structure is fixedly connected to the back of the first display structure and is used to be sleeved on the outside of the power plug of the power cord body.

[0005] In one optional embodiment, the support bracket further includes a plurality of reinforcing ribs, which are spaced apart at the connection between the first support plate and the second support plate.

[0006] In one alternative embodiment, the reinforcing rib is configured as a triangular pyramidal rib, and the corner of the reinforcing rib facing the power cord body is provided with an arcuate surface.

[0007] In one optional embodiment, the first display structure, the second display structure, and the plug bracket structure are arranged to form a semi-open limiting groove, which is used to accommodate the connecting wire harness of the power cord body, and the opening direction of the limiting groove is parallel to the insertion and removal direction of the power plug.

[0008] In one alternative embodiment, a first wire combing structure is provided on the back side of the first display structure; and / or, a second wire combing structure is provided on the back side of the second display structure.

[0009] In one optional embodiment, the first display structure includes a first display body and a first display part, the first display body is fixedly connected to the first carrier plate, and the first display part is disposed on the side of the first display body facing away from the first carrier plate and is configured as a light-transmitting plate or a display panel; the second display structure includes a second display body and a second display part, the second display body is fixedly connected to the second carrier plate, and the second display part is disposed on the side of the second display body facing away from the second carrier plate and is configured as a light-transmitting plate or a display panel.

[0010] In one optional embodiment, both the first display structure and the second display structure are configured as a display lamp structure or a display structure; or, both the first display structure and the second display structure are configured as a display lamp structure or a display structure; or, one of the first display structure and the second display structure is configured as a display lamp structure; and the other of the first display structure and the second display structure is configured as a display structure.

[0011] In one alternative embodiment, at least one of the first display structure and the second display structure is configured as a display structure, the display structure having a connection interface that is exposed relative to the connection harness of the power cord body and is used to connect to functional elements via external connection cables.

[0012] In one optional embodiment, the plug bracket structure includes a first protective shell and a second protective shell, the first protective shell and the second protective shell being connected to form a wiring channel for the power plug to pass through, and at least one of the first protective shell and the second protective shell being provided with a first snap-fit ​​structure, the first snap-fit ​​structure being used to snap into cooperation with a second snap-fit ​​structure provided on the power plug.

[0013] Secondly, embodiments of this application also provide a power connection cable, including a power cable body and a power plug fixing device as described above. The power cable body includes a connecting wire harness and a power plug. The power plug is connected to one end of the connecting wire harness and is fixedly connected to the power plug fixing device.

[0014] In the technical solution of the power plug fixing device and power connection cable proposed in this application embodiment, on the one hand, by using a support bracket as a supporting skeleton, the support bracket includes a first support plate and a second support plate that are bent, and a first display structure and a second display structure are respectively fixedly connected to the first support plate and the second support plate. The power plug is fixedly connected to the first display structure through a plug bracket structure, thereby increasing the force-bearing area during the insertion and removal of the power plug. As a result, when the operator inserts or removes the power plug, the force can be evenly transmitted to the power plug through the support bracket, avoiding the problem of uneven force application caused by directly holding the rubber shell of the power plug in the traditional way. This improves the stability and accuracy of the connection between the power plug and the pin socket of the functional component, and fundamentally solves the problem of the connection between the power plug and the functional component. This design addresses the issue of improper pin insertion, ensuring tight contact between the power plug and the functional component's pins, thus improving the stability of power transmission. Simultaneously, it reduces the risk of deformation or damage to the power plug and functional component's pins due to uneven stress, lowering the failure rate of the power cable and extending their service life. Furthermore, by fitting the plug bracket structure around the power plug of the power cord body, it provides physical protection, reducing external damage. Finally, the first and second display structures utilize a support bracket to achieve different installation spaces and display angles, optimizing the overall assembly layout of the power cable and enhancing the overall structural compactness and aesthetics. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the power connection cable provided in the first embodiment of this application.

[0016] Figure 2 yes Figure 1 An exploded view from the first perspective of the power connection cable.

[0017] Figure 3 yes Figure 1 An exploded view from a second perspective of the power connection cable.

[0018] Figure 4 yes Figure 1 A schematic diagram of the power plug fixing device for the power connection cable.

[0019] Figure 5 yes Figure 1 Side view of the power connection cable.

[0020] Figure 6 yes Figure 1 The diagram shows the plug bracket structure of the power connection cable and an exploded view of the power plug.

[0021] Figure 7 yes Figure 1A top view of the power connection cable.

[0022] Figure 8 yes Figure 7 A cross-sectional view of the power connection line along line II.

[0023] Figure 9 This is a schematic diagram of the power connection cable provided in the second embodiment of this application.

[0024] Figure 10 yes Figure 9 An exploded view of the power connection cables.

[0025] Figure 11 This is a schematic diagram of the power connection cable provided in the third embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: Power connection cable - 100; Power cable body - 1; Connecting wire harness - 11; Ribbon cable - 110; Wire - 1101; First wire section - 111; Second wire section - 112; Third wire section - 113; Power plug - 12; Second snap-fit ​​structure - 121; Boss structure - 122; Power plug fixing device - 2; Display module - 200; Limiting groove - 201; Support bracket - 20; First support plate - 21; First mounting hole - 2101; Second support plate - 22; Second mounting hole - 2201; Reinforcing rib - 23; Arc surface - 231; Cable management channel - 232; Display structure - 3; Display surface - 300; First display structure - 30; First locking hole - 301; Third locking hole - 302; First display body - 31; First fixing base - 311; First mounting groove - 3111 ; First LED strip - 312; First display unit - 32; Connection interface - 33; Second display structure - 40; Second locking hole - 401; Second display body - 41; Second fixing base - 411; Second mounting groove - 4111; Second LED strip - 412; Second display unit - 42; Locking component - 50; Identification structure - 60; Plug bracket structure - 70; Accommodating cavity - 700; Third mounting hole - 701; Through hole - 702; First snap-fit ​​structure - 703; Positioning notch - 704; Constraint hole - 705; Wiring channel - 706; First protective shell - 71; Body part - 711; Connecting part - 712; Second protective shell - 72; Visual structure - 80; First wire combing structure - 91; Second wire combing structure - 92; Combing channel - 93; First direction - X; Second direction - Y; Third direction - Z; Insertion / removal direction - F. Detailed Implementation

[0027] The following embodiments of this application will be described in conjunction with the accompanying drawings.

[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" means that the two parts are connected to each other and their relative positional relationship remains unchanged after connection. "Rotary connection" means that the two parts are connected to each other and can rotate relative to each other after connection. The term "integral molding" means that during the formation of one of multiple mechanisms, that mechanism is connected to the other mechanisms without requiring further processing (such as bonding, welding, snap-fit ​​connection, screw connection) to connect the two mechanisms together. The directional terms mentioned in the embodiments of this application, such as "top," "bottom," "inner," "outer," and "side," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0029] The basic concepts involved in the embodiments of this application will be briefly introduced below.

[0030] The term "Central Processing Unit (CPU)" refers to the core of a computer system for computation and control, and is the final execution unit for information processing and program execution.

[0031] The power connector in this embodiment is used to connect power supply devices and functional components. The power connector is compatible with ATX (Advanced Technology Extended) power supplies, Small Form Factor (SFX) power supplies, Thin Form Factor (TFX) power supplies, Flexible Form Factor (FLEX) power supplies, or gaming power supplies, etc., and this embodiment does not limit the compatibility. Functional components include, but are not limited to, various power-consuming devices such as motherboards, CPUs, and graphics cards. The power connector can be configured as a motherboard power cable, CPU power cable, graphics card power cable, or other peripheral power cables.

[0032] Understandably, to enable those skilled in the art to better understand power connectors, the power connector is used to connect to the motherboard, i.e., configured as a motherboard power supply cable, for detailed explanation. It should be noted that the motherboard power supply cable is for illustrative purposes only, and the embodiments in this application do not impose specific limitations. For example, the product type of the power connector can also be set according to actual needs.

[0033] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the power connection cable provided in the first embodiment of this application; Figure 2 yes Figure 1 An exploded view from a first perspective of the power connection cable. This application provides a power plug fixing device 2. The power plug fixing device 2 includes a support bracket 20, a first display structure 30, a second display structure 40, and a plug bracket structure 70. The support bracket 20 includes a first support plate 21 and a second support plate 22, with the first support plate 21 bent relative to the second support plate 22. The back side of the first display structure 30 is fixedly connected to the first support plate 21. The back side of the second display structure 40 is fixedly connected to the second support plate 22. The plug bracket structure 70 is fixedly connected to the back side of the first display structure 30 and is used to be sleeved on the outside of the power plug 12 of the power cord body 1.

[0034] In the technical solution of the power plug fixing device 2 proposed in this application embodiment, on the one hand, by using the bearing bracket 20 as a supporting frame, the bearing bracket 20 includes a first bearing plate 21 and a second bearing plate 22 that are bent, and the first display structure 30 and the second display structure 40 are respectively fixedly connected to the first bearing plate 21 and the second bearing plate 22. The power plug 12 is fixedly connected to the first display structure 30 through the plug bracket structure 70, thereby increasing the force-bearing area during the insertion and removal of the power plug 12. As a result, when the operator inserts or removes the power plug 12, the force can be evenly transmitted to the power plug 12 through the bearing bracket 20, avoiding the problem of uneven force application caused by directly holding the rubber shell of the power plug 12 in the traditional way. This improves the stability and accuracy of the docking between the power plug 12 and the pin socket of the functional component, and fundamentally solves the problem of improper insertion of the power plug 12 and the pin socket of the functional component. This design ensures tight contact between the power plug 12 and the pin socket of the functional component, improving the stability of power transmission. Simultaneously, it reduces the risk of deformation or damage to the power plug 12 and the pin socket of the functional component due to uneven force, lowering the failure rate of the power cable 100 and extending their service life. Furthermore, by fitting the plug bracket structure 70 around the power plug 12 of the power cable body 1, physical protection is provided for the power plug 12, reducing external damage and improving the safety and overall neatness of the power cable 100. Moreover, the first display structure 30 and the second display structure 40, through the support bracket 20, achieve different installation spaces and display angles, optimizing the overall assembly layout of the power cable 100 and enhancing the compactness and aesthetics of the overall structure.

[0035] It should be noted that, Figure 1The purpose is merely to schematically describe the arrangement of the support bracket 20, the first display structure 30, the second display structure 40 and the plug bracket structure 70, and is not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The power plug fixing device 2 shown in this embodiment is merely a schematic diagram and does not constitute a specific limitation on the power plug fixing device 2. In other embodiments of this application, the power plug fixing device 2 may include more than Figure 1 The power plug fixing device 2 may include, but is not limited to, a length adjustment structure, a current detection structure, etc., or may contain more or fewer components, or combinations of certain components, or different components.

[0036] This application embodiment also provides a display module 200. The display module 200 is mounted on a power cord body 1. The display module 200 includes a support bracket 20 and multiple display structures 3. The multiple display structures 3 are detachably connected to the support bracket 20. Each display structure 3 has a display surface 300. At least two of the multiple display surfaces 300 of the multiple display structures 3 are arranged at an included angle. The multiple display structures 3 and the support bracket 20 enclose a limiting groove 201. The limiting groove 201 is used to receive and install the power cord body 1.

[0037] In the technical solution of the display module 200 proposed in this application embodiment, on the one hand, by detachably connecting multiple display structures 3 to the bent support bracket 20, at least two display surfaces 300 are arranged at an angle, enabling information to be displayed simultaneously from different directions. This ensures that regardless of the orientation of the power plug 12 of the power cord body 1 after being inserted into the power socket, the user can directly observe the display content from a commonly used viewing angle, improving the convenience of information reading. On the other hand, the limiting groove 201 formed by the multiple display structures 3 and the support bracket 20 can properly store the power cord body 1, avoiding cable tangling and improving safety and cleanliness. Furthermore, by using the support bracket 20 as a supporting frame, the multiple display structures 3 improve the stability of the connection between the power plug 12 and the display module 200, reducing the risk of the power plug 12 causing the display module 200 to shift during insertion and removal, and causing the display surface 300 to shift or even loosen the connection, thus improving the stability of power transmission.

[0038] This application embodiment also provides a power plug fixing device 2. The power plug fixing device 2 includes a display module 200 and a plug bracket structure 70. The plug bracket structure 70 is used to connect the power cord body 1 and the display module 200. The display module 200 includes a support bracket 20 and a plurality of display structures 3. Exemplarily, in this embodiment, the plurality of display structures 3 includes a first display structure 30 and a second display structure 40.

[0039] The power cord body 1 includes a connecting harness 11 and a power plug 12. The connecting harness 11 includes at least one ribbon cable 110. Each ribbon cable 110 includes multiple conductors 1101. Therefore, the connecting harness 11 uses at least one ribbon cable 110 for routing. On the one hand, this makes the overall structure of the connecting harness 11 thin and light, with a neat layout, occupying little installation space, facilitating neat wiring within the compact internal space of the device and optimizing the internal layout. At the same time, the ribbon cable 110 is flexible, allowing the connecting harness 11 to bend appropriately to adapt to the bending structure of the support bracket 20 and the installation position differences of each component, avoiding wiring interference and rigid pulling, and improving assembly adaptability. On the other hand, the ribbon cable 110 has a high degree of circuit integration, which can uniformly realize the signal and power transmission between various electrical structures. The wiring is simple and orderly, reducing the problem of messy and tangled lines, reducing the risk of line wear, short circuits and poor contact, improving the overall stability of power consumption and signal transmission, and facilitating disassembly and maintenance, simplifying the assembly and subsequent maintenance work between the connecting harness 11 and the power plug 12. A power plug 12 is disposed at one end of a connecting harness 11 and is used for connection to the motherboard. Exemplarily, the connecting harness 11 includes two ribbon cables 110. Of course, in some possible embodiments, the connecting harness 11 may also include, but is not limited to, one or three ribbon cables 110, etc., and this application embodiment does not impose specific limitations. The two ribbon cables 110 are stacked. The power plug 12 can be configured, but is not limited to, a 24-pin plug, a 16-pin plug, an 8-pin plug, a 6-pin plug, or a 4-pin plug. Exemplarily, in this embodiment, the power plug 12 can be configured as a 24-pin plug. It can be understood that when the power plug 12 is configured as a 24-pin plug, the power cord body 1 can serve as a motherboard power supply cable; when the power plug 12 is configured as a 4-pin or 8-pin plug, the power cord body 1 can serve as a CPU power supply cable; when the power plug 12 is configured as a 6-pin, 8-pin, or 16-pin plug, the power cord body 1 can serve as a graphics card power supply cable.

[0040] For example, in this embodiment, the support bracket 20 can be configured as a metal structure. Therefore, by configuring the support bracket 20 as a metal structure, the structural strength and rigidity of the support bracket 20 are improved, enhancing the overall stability and resistance to deformation. This allows the support bracket 20 to stably support the first display structure 30 and the second display structure 40 for a long period, preventing bending, deformation, or loosening, and making it suitable for long-term, high-frequency use of the power connection cable 100. Simultaneously, the metal structure possesses excellent high-temperature resistance, aging resistance, and mechanical load-bearing capacity, improving the structural durability and service life of the support bracket 20.

[0041] In one possible embodiment, the support bracket 20 can also be configured as a plastic structure. Therefore, by configuring the support bracket 20 as a plastic structure, on the one hand, the overall weight of the support bracket 20 is reduced, decreasing the overall load on the power plug fixing device 2 and reducing the load-bearing pressure on the power plug 12; simultaneously, plastic has good one-piece molding properties, making it easy to process into the first support plate 21 and the second support plate 22 with bending shapes, resulting in low molding costs, strong mass production capabilities, and good insulation properties, which can isolate the conductive components at the power plug 12, avoiding the risk of leakage and short circuits, and improving electrical safety; on the other hand, the plastic material has excellent toughness and a certain buffering and shock absorption capacity, which can buffer the impact of external collisions and vibrations on the first display structure 30, the second display structure 40, and the power plug 12, and is scratch-resistant, wear-resistant, and not easily corroded, with strong environmental adaptability, reducing later maintenance costs. It should be noted that the support bracket 20 can also be configured with structures of different materials according to actual needs, and this application embodiment does not specifically limit it. For example, the support bracket 20 may include a support frame and a protective layer covering the surface of the support frame. The supporting frame can be configured as a metal bracket, and the protective layer can be configured as a plastic film layer.

[0042] The plane of the first support plate 21 is perpendicular to the plane of the second support plate 22. Therefore, by setting the first support plate 21 and the second support plate 22 perpendicularly, the display surfaces 300 of the first display structure 30 and the second display structure 40 can form a right-angle corner effect, achieving information display or immersive visual immersion with the two surfaces at 90° to each other. Simultaneously, the perpendicularity of the first support plate 21 and the second support plate 22 allows the limiting groove 201 to neatly store the power cord body 1 at the corner, preventing cable breakage or exposure, and improving the overall compactness and aesthetics of the assembly.

[0043] The support bracket 20 also includes multiple reinforcing ribs 23, which are spaced apart at the connection between the first support plate 21 and the second support plate 22. Thus, by spaced reinforcing ribs 23 at the bend connection between the first support plate 21 and the second support plate 22, the structural strength and overall rigidity of the bending transition area of ​​the support bracket 20 are improved. The reinforcing ribs 23 can disperse and buffer the load, reducing problems such as torsional deformation, cracking, and fracture caused by load, external pressure, and tension at the bending position, thereby enhancing the structural stability and fatigue resistance of the support bracket 20 at the corner. Furthermore, the reinforcing ribs 23 can strengthen the overall support reliability of the support bracket 20, improving the positional accuracy and assembly firmness of the first display structure 30 and the second display structure 40 after installation. The structure is simple and compact, does not occupy additional installation space, and balances lightweight and structural strength.

[0044] For example, in this embodiment, the reinforcing rib 23 is configured as a triangular pyramidal rib, and the corner of the reinforcing rib 23 facing the power cord body 1 is provided with an arc-shaped surface 231. Therefore, by configuring the reinforcing rib 23 as a triangular pyramidal rib, on the one hand, the structural rigidity and bending resistance of the reinforcing rib 23 can be maximized within a limited space. The force transmission of the triangular three-dimensional structure is uniform, strengthening the load-bearing strength at the connection between the first bearing plate 21 and the second bearing plate 22, improving the ability to disperse concentrated stress, and preventing deformation and damage at the corner of the bearing bracket 20. On the other hand, the arc-shaped surface 231 on the corner of the reinforcing rib 23 facing the power cord body 1 eliminates sharp edges, preventing the edges of the reinforcing rib 23 from scratching, cutting, and crushing the outer sheath of the power cord body 1, protecting the integrity of the power cord body 1. At the same time, it reduces scratches and interference during assembly and disassembly, improving the safety and durability of the product.

[0045] In some optional embodiments, adjacent reinforcing ribs 23 form cable management channels 232. The cable management channels 232 are used for the connecting wire harness 11 of the power cord body 1 to pass through, thereby serving to manage the connecting wire harness 11. Specifically, the support bracket 20 is provided with a plurality of reinforcing ribs 23 at intervals on the inner side of the bend facing the support bracket 20 at the connection between the first support plate 21 and the second support plate 22.

[0046] Please refer to the following: Figure 2 and Figure 3 , Figure 3 yes Figure 1 An exploded view from a second perspective of the power connection cable. In some optional embodiments, the reinforcing rib 23 is provided with a thinning groove with an opening facing away from the power cable body 1. Thus, by creating a thinning groove with an opening facing away from the power cable body 1 on the reinforcing rib 23, on the one hand, while maintaining the overall structural strength and connection reinforcement effect of the reinforcing rib 23, the reinforcing rib 23 can be locally thinned and its weight reduced, thereby reducing the overall material usage and weight of the support bracket 20, reducing product production costs, and optimizing the overall lightweight design; on the other hand, the thinning groove can release the internal stress during plastic molding, improve defects such as uneven shrinkage, surface shrinkage, and deformation during injection molding, and improve the molding yield and dimensional stability of the bracket. The opening of the thinning groove faces away from the power cable body 1, and the corners of the thinning groove can avoid the layout area of ​​the connecting wire harness 11 of the power cable body 1, so as not to cause compression, scratching, or spatial interference to the connecting wire harness 11, ensuring the safe and smooth arrangement of the connecting wire harness 11. In other words, a reinforcing rib 23 is formed by recessing the support bracket 20 towards the inner side of the bend at the connection between the first support plate 21 and the second support plate 22. The reinforcing rib 23 can be formed by integral injection molding or aluminum extrusion, and this application embodiment does not specifically limit it.

[0047] Please refer to the following: Figures 1 to 4 , Figure 4 yes Figure 1 A schematic diagram of the power plug fixing device for the power connection cable is shown. For example, in this embodiment, the power plug fixing device 2 further includes multiple locking members 50. Each display structure 3 is detachably connected to the support bracket 20 via a corresponding locking member 50. The locking member 50 is positioned to avoid contact with the connecting wire harness 11 of the power cord body 1 and is exposed relative to the connecting wire harness 11. Therefore, on the one hand, each display structure 3 is detachably connected to the support bracket 20 through a corresponding locking member 50, thereby improving the disassembly efficiency and maintenance operation of the display structure 3; on the other hand, by setting the locking member 50 to avoid obstruction of the connecting wire harness 11 of the power cord body 1 and exposing the connecting wire harness 11, the obstruction and interference of the connecting wire harness 11 on the installation operation can be avoided, making it easier for operators to intuitively align the holes and insert the locking member 50, improving assembly efficiency and assembly yield, and making disassembly and maintenance operations more convenient; at the same time, the exposed hole layout can avoid the locking member 50 squeezing and pressing the connecting wire harness 11, preventing the connecting wire harness 11 from being squeezed and deformed, the outer sheath damaged, and the wire bending damage, ensuring the smooth layout of the connecting wire harness 11 and the stable electrical connection.

[0048] For example, the first display structure 30 and the first support plate 21 can be detachably connected via a locking member 50. The second display structure 40 and the second support plate 22 can also be detachably connected via the locking member 50. Specifically, the first support plate 21 is provided with a plurality of first mounting holes 2101, and the first display structure 30 is provided with first locking holes 301 corresponding to the plurality of first mounting holes 2101. The locking member 50 passes through the first mounting holes 2101 and is locked within the first locking holes 301. The second support plate 22 is provided with a plurality of second mounting holes 2201, and the second display structure 40 is provided with second locking holes 401 corresponding to the plurality of second mounting holes 2201. The locking member 50 passes through the second mounting holes 2201 and is locked within the second locking holes 401. The plug bracket structure 70 and the first display structure 30 can also be detachably connected via the locking member 50. Specifically, the plug bracket structure 70 is provided with a third mounting hole 701, and the first display structure 30 is also provided with a third locking hole 302. The locking element 50 passes through the third mounting hole 701 and is locked in the third locking hole 302. The locking element 50 can be, but is not limited to, screws, pins, rivets, etc.

[0049] In some possible embodiments, multiple first mounting holes 2101 are exposed relative to the connecting wire harness 11 of the power cord body 1. Specifically, the number of first mounting holes 2101 is set to two, and the distance between the two first mounting holes 2101 is greater than the width of the connecting wire harness 11 in the first direction X, so as to expose the first mounting holes 2101. Thus, by setting multiple first mounting holes 2101 exposed relative to the connecting wire harness 11 of the power cord body 1, the mounting holes and the connecting wire harness 11 can be staggered and do not obstruct each other, avoiding the obstruction and interference of the connecting wire harness 11 on the installation operation. This makes it easier for operators to intuitively align the holes and insert the locking member 50, improving assembly efficiency and assembly yield, and making disassembly and maintenance operations more convenient. At the same time, the exposed hole layout can prevent the locking member 50 from squeezing or pressing the connecting wire harness 11, preventing the connecting wire harness 11 from being squeezed and deformed, damaged insulated, or bent, ensuring smooth installation and stable electrical connection of the connecting wire harness 11.

[0050] Multiple second mounting holes 2201 are exposed relative to the connecting wire harness 11 of the power cord body 1. Specifically, the number of second mounting holes 2201 is set to two, and the distance between the two second mounting holes 2201 is greater than the width of the connecting wire harness 11 in the first direction X, so as to expose the second mounting holes 2201. Thus, by setting multiple second mounting holes 2201 exposed relative to the connecting wire harness 11 of the power cord body 1, the mounting holes and the connecting wire harness 11 can be staggered and do not obstruct each other, avoiding the obstruction and interference of the connecting wire harness 11 on the installation operation. This makes it easier for operators to intuitively align the holes and insert the locking parts 50, improving assembly efficiency and assembly yield, and making disassembly and maintenance operations more convenient. At the same time, the exposed hole layout can prevent the locking parts 50 from squeezing and pressing the connecting wire harness 11, preventing the connecting wire harness 11 from being squeezed and deformed, the outer sheath damaged, and the wires bent and damaged, ensuring the smooth installation of the connecting wire harness 11 and the stable electrical connection.

[0051] Multiple third mounting holes 701 are exposed relative to the connecting wire harness 11 of the power cord body 1. Specifically, there are two third mounting holes 701, and the distance between the two third mounting holes 701 is greater than the width of the connecting wire harness 11 in the first direction X, so as to expose the third mounting holes 701. Thus, by setting multiple third mounting holes 701 exposed relative to the connecting wire harness 11 of the power cord body 1, the mounting holes and the connecting wire harness 11 can be staggered and do not obstruct each other, avoiding the obstruction and interference of the connecting wire harness 11 on the installation operation. This makes it easier for operators to intuitively align the holes and insert the locking parts 50, improving assembly efficiency and assembly yield, and making disassembly and maintenance operations more convenient. At the same time, the exposed hole layout can prevent the locking parts 50 from squeezing and pressing the connecting wire harness 11, preventing the connecting wire harness 11 from being squeezed and deformed, the outer sheath damaged, and the wires bent and damaged, ensuring the smooth installation of the connecting wire harness 11 and the stable electrical connection.

[0052] It should be noted that the number of the first mounting hole 2101, the second mounting hole 2201, and the third mounting hole 701 may include one, three, or more than three. This application embodiment does not specifically limit the number or configuration of the first mounting hole 2101, the second mounting hole 2201, and the third mounting hole 701. For example, in some possible embodiments, at least one of the first mounting hole 2101, the second mounting hole 2201, and the third mounting hole 701 may be blocked by the connecting wire harness 11.

[0053] Exemplarily, the first support plate 21 and the second support plate 22 are configured as an integral structure, thereby improving the structural strength of the support bracket 20 and simplifying its overall structure. Of course, specifically, the first support plate 21 and the second support plate 22 can be formed by integral injection molding or aluminum extrusion; this application embodiment does not impose specific limitations. Of course, in some embodiments, the first support plate 21 and the second support plate 22 can also be configured as a separate structure. For example, the first support plate 21 and the second support plate 22 can also be detachably and fixedly connected by means of a snap-fit ​​structure, a screw locking structure, etc.; this application embodiment does not impose specific limitations.

[0054] The first display structure 30, the second display structure 40, and the plug bracket structure 70 together form a semi-open limiting groove 201. The limiting groove 201 is used to accommodate the connecting wire harness 11 of the power cord body 1. The opening direction of the limiting groove 201 is parallel to the insertion / removal direction F of the power plug 12. Therefore, on the one hand, the first display structure 30, the second display structure 40, and the plug bracket structure 70 cooperate with each other to form a semi-open limiting groove 201. The space formed by the enclosure of each component is used to centrally store and limit the connection harness 11, which can constrain the scattered movement of the connection harness 11 and prevent the connection harness 11 from being messy, tangled, bent, twisted, or exposed and loose, so that the circuit is neat and orderly. The semi-open structure facilitates the quick insertion and removal of the connection harness 11, and makes assembly, maintenance, and subsequent wiring adjustment operations convenient. On the other hand, the opening direction of the limiting groove 201 is parallel to the insertion and removal direction F of the power plug 12, thereby reducing the risk of the power plug 12 squeezing and pulling the connection harness 11 inside the limiting groove 201 during the insertion and removal operation, avoiding problems such as wear, breakage, and poor contact of the connection harness 11, and ensuring the reliability of the circuit connection. At the same time, the connection harness 11 can be stored in a directional and orderly manner without affecting the normal insertion and removal of the power plug 12, making reasonable use of the spare space of the device, with a compact overall structural layout, improving the cleanliness of the product and the structural integration.

[0055] For example, the limiting groove 201 is generally U-shaped. In other words, the second display structure 40 and the plug bracket structure 70 extend to the same side relative to the first display structure 30 along the second direction Y. The second direction Y intersects the first direction X. Therefore, firstly, the second display structure 40 and the plug bracket structure 70 extend towards the same side relative to the first display structure 30, resulting in a neat and orderly overall layout with high structural integration. This allows for a unified, laterally extended overall assembly form, creating a compact and orderly spatial layout. The unidirectional extension of all three reduces misalignment and interference between components, adapts to the structural shape of the support bracket 20, facilitates modular assembly, and reduces assembly difficulty. Secondly, the unidirectional arrangement of the second display structure 40 and the plug bracket structure 70 confined the lateral space, facilitating the uniform avoidance of the installation and plugging / unplugging areas of the connecting harness 11 and the power plug 12, preventing collisions and scrapes caused by component misalignment. Furthermore, the unidirectional cooperation between the second display structure 40 and the plug bracket structure 70 provides protection, ensuring simultaneous display of the dual display structures while enhancing overall lateral protection, resulting in a strong overall aesthetic consistency and improved structural stability and safety. For example, the second direction Y is perpendicular to the first direction X. The second display structure 40 and the plug bracket structure 70 are positioned relative to each other in the third direction Z.

[0056] Please refer to the following: Figure 2 and Figure 5 , Figure 5 yes Figure 1 A side view of the power connection cable. In some possible embodiments, the first display structure 30 overlaps the second display structure 40. Thus, by having the first display structure 30 overlap the second display structure 40, on the one hand, it enables the first and second display structures 30 and 40 to fit together vertically and be quickly aligned before assembly, reducing assembly difficulty and improving assembly efficiency; on the other hand, the overlapping arrangement of the first and second display structures 30 and 40 limits lateral offset and misalignment between them, enhancing the overall integration and structural integrity of the assembled structures and reducing gap loosening; simultaneously, the overlapping assembly of the first and second display structures 30 and 40 requires no additional complex connectors, resulting in a simple and compact structure that saves installation space; furthermore, the overlapping arrangement of the first and second display structures 30 and 40 also allows them to share the load, improving the overall deformation resistance of the power plug fixing device 2, avoiding loosening and warping issues that may occur with long-term use, and ensuring flatness during installation.

[0057] For example, in this embodiment, the first display structure 30 and the second display structure 40 are coplanar on the side facing away from the power cord body 1. Specifically, the surface of the first display structure 30 close to the surface of the second display structure 40 in the third direction Z, and the surface of the second display structure 40 close to the surface of the first display structure 30 in the second direction Y, and they are flush. Thus, by setting the first display structure 30 and the second display structure 40 to be coplanar on the side facing away from the power cord body 1, and the adjacent mating surfaces of the first display structure 30 and the second display structure 40 to be flush with each other, on the one hand, the height difference and step gaps at the mating point of the first display structure 30 and the second display structure 40 can be eliminated, making it easier for the operator to operate the force application surface of the power plug fixing device 2 to quickly insert and remove the power plug 12, and improving the overall flatness and continuity of the outer surface of the power plug fixing device 2; at the same time, the flat mating joint can optimize stress transmission, making the power plug fixing device 2 more stable. The force is more even, enhancing the overall rigidity and structural stability of the power plug fixing device 2 assembly, making it less prone to deformation under external pressure, while not affecting the normal layout and use of the connecting wire harness 11 of the inner power cord body 1. It takes into account assembly stability, appearance consistency, internal layout rationality, overall appearance and aesthetics. On the other hand, the first display structure 30 and the second display structure 40 are arranged on the same plane on the side away from the power cord body 1, which can avoid interference of the protruding structure with the surrounding components, reduce the overall space occupied, and make the structural layout more compact. At the same time, it can also reduce the accumulation of dust and dirt in the joint gaps, making daily cleaning easier.

[0058] The first display structure 30 and the plug bracket structure 70 are coplanar on the side opposite to the second display structure 40. Specifically, the surface of the first display structure 30 away from the second display structure 40 in the third direction Z is connected to and flush with the surface of the plug bracket structure 70 away from the second display structure 40 in the third direction Z. Thus, by having the first display structure 30 and the plug bracket structure 70 coplanar on the side opposite to the second display structure 40, their corresponding surfaces away from the second display structure 40 are connected and flush. This eliminates step differences and gaps at the splicing position, making the overall surface of the power plug fixing device 2 flat and continuous, facilitating the operator to quickly insert and remove the power plug 12 by operating the force application surface of the power plug fixing device 2, and improving the overall appearance and neatness of the power plug fixing device 2. Simultaneously, the first display structure... The flush and fitted arrangement of the first display structure 30 and the plug bracket structure 70 enables precise positioning constraints between them, limiting misalignment, warping, and loosening, and improving the tightness and overall integrity of their assembly. Furthermore, the coplanar and flush layout of the first display structure 30 and the plug bracket structure 70 reduces protruding structures, preventing scratches and interference during use and installation, and lowering the risk of damage from impacts. Simultaneously, it also reduces the overall external space required, resulting in a more compact structural layout.

[0059] Of course, in some possible embodiments, the first display structure 30 may protrude or be recessed relative to the second display structure 40 on the side facing away from the power cord body 1. The first display structure 30 may protrude or be recessed relative to the plug bracket structure 70 on the side facing away from the second display structure 40. The positions of the first display structure 30, the second display structure 40, and the plug bracket structure 70 can be set according to actual conditions, and this application embodiment does not make specific limitations. The first display structure 30 is set at a right angle to the second display structure 40 and at a right angle to the plug bracket structure 70. For example, the plane where the first display structure 30 is located may be set at a right angle to the plane where the second display structure 40 is located and at a right angle to the plane where the plug bracket structure 70 is located, which improves the assembly yield and assembly efficiency, and improves the flatness of the outer surface of the power plug fixing device 2, making it easier for users to hold and plug / unplug the power plug 12. Of course, in some possible embodiments, the plane where the first display structure 30 is located may be set at an acute angle or an obtuse angle to the plane where the second display structure 40 is located, and may also be set at an acute angle or an obtuse angle to the plane where the plug bracket structure 70 is located. This application does not make specific limitations.

[0060] Please refer to it again. Figures 1 to 3The connecting harness 11 includes, along its extension direction, a first conductor segment 111, a second conductor segment 112, and a third conductor segment 113. The first conductor segment 111 connects to the power plug 12, and its extension direction is parallel to the insertion direction of the power plug 12. The second conductor segment 112 is parallel to the plane containing the first display structure 30, meaning its display surface is parallel to the first display structure 30. The third conductor segment 113 is parallel to the plane containing the second display structure 40, meaning its display surface is parallel to the second display structure 40. Therefore, the connecting harness 11 is divided into three segments along its extension direction: a first conductor segment 111, a second conductor segment 112, and a third conductor segment 113. Each segment is adapted to a different orientation according to its corresponding installation position. On the one hand, this achieves directional and segmented orderly routing of the connecting harness 11. On the other hand, the first conductor segment 111, which is connected to the power plug 12, is arranged parallel to the insertion direction of the power plug 12, which can adapt to the insertion and removal trajectory of the power plug 12. This prevents the connecting harness 11 from being pulled, twisted, bent, or squeezed during the insertion and removal of the power plug 12, and prevents damage to the wires, breakage of the core wires, and poor contact of the power cord body 1. This improves the smoothness of the insertion and removal operation of the power plug 12 and the stability of the power connection. Furthermore, the second conductor segment 112 is parallel to and conforms to the planar extension of the first display structure 30, and the third conductor segment 113 is parallel to... The planar extension of the second display structure 40 allows the second conductor segment 112 and the third conductor segment 113 to adapt to the surface morphology of the first display structure 30 and the second display structure 40, respectively. This results in high wiring fit and neat arrangement, reducing the suspension, twisting, and messy stacking of the connecting wire harness 11. At the same time, it can fully adapt to the bending shape of the support bracket 20, avoiding interference between the support bracket 20 and the connecting wire harness 11. It also makes reasonable use of the storage space of the limiting groove 201, improving the compactness of the internal layout. Furthermore, the segmented and directional wiring method of the connecting wire harness 11 can disperse the bending stress of the connecting wire harness 11, avoid local excessive bending fatigue, reduce the risk of aging and damage to the connecting wire harness 11, facilitate the neat storage and fixing of the connecting wire harness 11, and improve the overall assembly consistency, internal cleanliness, and long-term reliability of the power plug fixing device 2. Specifically, each conductor 1101 includes a first conductor segment 111, a second conductor segment 112, and a third conductor segment 113 in sequence along the extension direction of the conductor 1101.

[0061] The dimension of the first display structure 30 in the first direction X is equal to the dimension of the second display structure 40 in the first direction X, and also equal to the dimension of the plug bracket structure 70 in the first direction X. Therefore, by ensuring that the dimensions of the first display structure 30, the second display structure 40, and the plug bracket structure 70 are equal in the first direction X, the components of the power plug fixing device 2 are aligned and flush in this direction, eliminating assembly gaps and dimensional misalignments. This improves the operator's grip on the power plug fixing device 2 and enhances the overall appearance consistency and structural regularity of the power plug fixing device 2. Simultaneously, it facilitates standardized and compatible assembly of the components of the power plug fixing device 2, reduces the risk of assembly misalignment, optimizes overall space utilization, and makes the overall structural layout more compact and coordinated, improving product assembly accuracy and structural integrity.

[0062] Of course, in some possible embodiments, the dimensions of the first display structure 30 in the first direction X are different from at least one of the dimensions of the second display structure 40 in the first direction X and the dimensions of the plug bracket structure 70 in the first direction X. This application does not make specific limitations.

[0063] like Figure 2 and Figure 3As shown, exemplarily, the first display structure 30 includes a first display body 31 and a first display portion 32. The first display body 31 is fixedly connected to the first support plate 21. The first display portion 32 is disposed on the side of the first display body 31 facing away from the first support plate 21 and is configured as a light-transmitting plate or a display panel. The second display structure 40 includes a second display body 41 and a second display portion 42. The second display body 41 is fixedly connected to the second support plate 22. The second display portion 42 is disposed on the side of the second display body 41 facing away from the second support plate 22 and is configured as a light-transmitting plate or a display panel. Therefore, on the one hand, both the first display structure 30 and the second display structure 40 adopt a split structure design, with clear structural division, facilitating modular independent processing, assembly, and subsequent individual inspection and replacement, thus reducing production assembly and maintenance costs; at the same time, the first display body 31 and the second display body 41 are respectively fixedly connected to the first support plate 21 and the second support plate 22, relying on the support bracket 20 to achieve stable assembly support, reliable installation positioning, and can withstand the installation load of the first display structure 30 and the second display structure 40, preventing the first display structure 30 and the second display structure 40 from loosening, warping, and falling off, thus improving assembly stability; on the other hand, through The first display unit 32 is disposed on the outer end face of the corresponding first display body 31 and the second display unit 42 is disposed on the outer end face of the corresponding second display body 41. A light-transmitting plate or a display panel is selected as the functional component. Different functional devices can be flexibly selected according to the actual needs of the product, and it can be adapted to various usage scenarios such as light transmission display of the first light strip 312 or the second light strip 412 and display of screen information, thus expanding the range of applications. At the same time, relying on the first display body 31 and the second display body 41 to form back protection and isolation, it can isolate the interference of the internal connecting wire harness 11 and the supporting bracket 20 structure, extend the service life, and improve the appearance and overall visual effect of the machine.

[0064] Both the first display structure 30 and the second display structure 40 are configured as display lamp structures. Specifically, the first display body 31 includes a first fixing base 311 and a first light strip 312. The first fixing base 311 is provided with a first mounting groove 3111 for mounting the first light strip 312; and / or, the second display body 41 includes a second fixing base 411 and a second light strip 412. The second fixing base 411 is provided with a second mounting groove 4111 for mounting the second light strip 412. Thus, by embedding and limiting the first light strip 312 in the first mounting groove 3111 and embedding and limiting the second light strip 412 in the second mounting groove 4111, the first light strip 312 and the second light strip 412 can be positioned and fixed, preventing displacement, warping, and detachment, thus improving the accuracy and stability of the assembly of the first light strip 312 and the second light strip 412. On the other hand, the first light strip 312 and the second light strip 412 are hidden inside the first display structure 30 and the second display structure 40, which can... The first light strip 312 and the second light strip 412 are physically protected, reducing damage caused by external pressure, bumps, and friction. Simultaneously, they isolate dust and debris from intrusion, delaying light strip aging and improving the service life and operational stability of the first light strip 312 and the second light strip 412. Furthermore, in conjunction with the outer light-transmitting plate or display panel, uniform light guidance and soft light display can be achieved, avoiding direct, glaring light and improving the visual display effect. The overall layout is compact and neat, facilitating miniaturized integrated design and reducing the production cost of the power plug fixing device 2. For example, in the first embodiment, the first display body 31 may include a first fixing base 311 and a first light strip 312, and the second display body 41 may also include a second fixing base 411 and a second light strip 412.

[0065] The first LED strip 312 and the second LED strip 412 can emit light of at least one of different colors, brightness, and flashing patterns. Different light patterns can be used to represent different operating states of the power cord body 1. For example, different colors of light can represent different temperature levels of the power cord body 1, allowing users to quickly and accurately understand the temperature of the power cord body 1. For instance, the temperature of the power cord body 1 can be divided into a high temperature range, a medium temperature range, and a low temperature range. Understandably, multiple levels are set according to different temperature ranges, with higher levels indicating higher temperatures. When the first LED strip 312 or the second LED strip 412 emits red light, it indicates that the temperature of the power cord body 1 has reached the highest level (i.e., the high temperature range); when the first LED strip 312 or the second LED strip 412 emits yellow light, it indicates that the temperature of the power cord body 1 has reached the medium level (i.e., the medium temperature range); and when the first LED strip 312 or the second LED strip 412 emits green light, it indicates that the temperature of the power cord body 1 has reached the lowest level (i.e., the low temperature range). It should be noted that the correspondence between temperature level and at least one of light color, light brightness and light flicker mode can be user-defined or set by default at the factory of the power cord body 1. This application embodiment does not impose specific limitations.

[0066] For example, in this embodiment, a labeling structure 60 is provided on the light-transmitting plate. Thus, the labeling structure 60 on the surface of the light-transmitting plate allows for backlit visualization using the light from the inner first light strip 312 or the second light strip 412, clearly displaying functional labels, parameter symbols, prompt icons, etc. The labeling is intuitive and eye-catching, facilitating quick identification of device status and operating information by the user. The labeling structure 60 can be at least one of the following: product name, company name, product model, manufacturer, decorative pattern, etc.

[0067] For example, a marking structure 60 is provided on the back of the light-transmitting plate, that is, the marking structure 60 is provided on the side of the light-transmitting plate facing the first display body 31 or the second display body 41, thereby making the structure of the first display structure 30 and the second display structure 40 simple, with a strong overall appearance, dustproof and scratch-resistant, and extending the life cycle of the marking structure 60. Of course, in some possible embodiments, the marking structure 60 can also be provided on the front of the light-transmitting plate or embedded inside the light-transmitting plate.

[0068] The signage structure 60 and the light-transmitting plate can be an integral structure, meaning the signage structure 60 and the light-transmitting plate are integrated. For example, the signage structure 60 can be formed on the light-transmitting plate through integral injection molding, engraving, or stamping processes, etc., and this application embodiment does not impose specific limitations. In some possible embodiments, the signage structure 60 and the light-transmitting plate can also be separate structures, meaning the signage structure 60 and the light-transmitting plate can be independently set and fixedly connected.

[0069] In some embodiments, the first display structure 30 and the second display structure 40 can both be configured as display structures. The display screen can be configured as a digital tube display, LCD display, OLED display, QLED display, micro LED display, or e-ink screen. Therefore, the display panel can be flexibly configured with various types of displays, including digital tube displays, LCD displays, OLED displays, QLED displays, micro LED displays, and e-ink screens, allowing for flexible selection and adaptation based on product positioning, usage scenarios, power consumption requirements, and cost requirements, thus broadening the product's adaptability. Furthermore, different screen types can respectively meet differentiated functional requirements such as simple digital display, high-definition image display, low-power always-on display, high color gamut image quality, ultra-thin and lightweight design, and power-saving long-term operation, adapting to different working conditions and usage environments.

[0070] Please refer to the following: Figure 4 , Figure 6 , Figure 7 and Figure 8 , Figure 6 yes Figure 1 The plug bracket structure of the power connection cable and the exploded view of the power plug. Figure 7 yes Figure 1 Top view of the power connection cable in the middle; Figure 8 yes Figure 7 A cross-sectional view of the power connection line along line II. The plug bracket structure 70 includes a first protective shell 71 and a second protective shell 72.

[0071] The second protective shell 72 is detachably connected to the first protective shell 71, and together they form a receiving cavity 700, a through hole 702, and a restraining hole 705. The receiving cavity 700 communicates with the through hole 702 and the restraining hole 705. The receiving cavity 700 is used to receive the end of the connecting wire harness 11 near the power plug 12. The extending direction of the through hole 702 intersects the extending direction of the restraining hole 705. The first protective shell 71 is used to be detachably connected to the display module 200 outside the receiving cavity 700. The restraining hole 705 is used to restrain the protruding length of the power plug 12. The through hole 702 is used for the connecting wire harness 11 to pass through.

[0072] In the technical solution of the plug bracket structure 70 proposed in this application embodiment, on the one hand, the extension length of the power plug 12 is precisely limited by the constraint hole 705, thereby avoiding poor contact caused by the power plug 12 being inserted too shallowly or damage to the socket caused by being inserted too deeply; at the same time, the receiving cavity 700 provides reliable protection for the end of the connecting wire harness 11 near the power plug 12, preventing the connecting wire harness 11 from breaking under repeated bending or external pulling, thus improving the stability and durability of the electrical connection; on the other hand, by means of the detachable connection between the first protective shell 71 and the display module 200, the display module 200 does not need to Integrated inside the power plug 12, it facilitates disassembly and assembly, and frees up internal space in the plug bracket structure 70. Furthermore, by setting the extension direction of the through hole 702 to intersect with the extension direction of the constraint hole 705, the connecting wire harness 11 can be naturally led out from the side of the power plug 12, avoiding large-angle bending of the connecting wire harness 11 at the root of the power plug 12. This reduces the risk of breakage of the power plug 12 under repeated bending or external pulling, improves the reliability of the electrical connection, optimizes the assembly routing of the connecting wire harness 11, and avoids mutual interference between the connecting wire harness 11 and the power plug 12 during plugging and unplugging operations.

[0073] It should be noted that the constraint hole 705 can be configured as, but is not limited to, a snap-fit ​​hole, a stepped hole, a sleeve-type constraint hole, a cylindrical constraint hole, or a tapered hole. For example, in this embodiment, the constraint hole 705 is configured as a snap-fit ​​hole, and the power plug 12 is provided with a snap-fit ​​block that engages with the snap-fit ​​hole. For instance, when the constraint hole 705 is configured as a stepped hole, the constraint hole includes multiple sections with varying diameters, and the axial positioning of the power plug is achieved by the stepped surface, providing both radial constraint and axial limiting. Another example is when the constraint hole 705 is configured as a sleeve-type constraint hole, a bushing is pressed into the constraint hole 705, and the bushing is fitted onto the outside of the power plug 12. Yet another example is when the constraint hole 705 is configured as a cylindrical constraint hole, the power plug 12 passes through the constraint hole 705 and is limited by a cylindrical locating pin, a pin shaft, or a bolt.

[0074] For example, the extending direction of the through hole 702 can be perpendicular to the extending direction of the constraint hole 705. Therefore, by setting the through hole 702 and the constraint hole 705 perpendicularly, the wiring harness 11 and the power plug 12 can be routed separately without interference. The bidirectional constraint stabilizes the plug position and limits its extension length, while also changing the wiring path, reducing bending losses at the connection point, and better adapting to the internal installation space of the plug bracket structure 70. Of course, in some embodiments, the extending direction of the through hole 702 and the extending direction of the constraint hole 705 can also be set at an acute angle or an obtuse angle; this application does not specifically limit this.

[0075] The first protective shell 71 and the second protective shell 72 are connected to form a wiring channel 706 for the power plug 12 to pass through. The through hole 702, the receiving cavity 700, and the constraint hole 705 are sequentially connected to form the wiring channel 706. At least one of the first protective shell 71 and the second protective shell 72 is provided with a first snap-fit ​​structure 703, which is used to engage with the second snap-fit ​​structure 121 provided on the power plug 12. Therefore, on the one hand, by adopting a split-shell structure for the plug bracket structure 70, the power plug 12 is easily inserted, aligned, and assembled, making disassembly and assembly convenient and providing strong assembly compatibility; at the same time, the split-shell plug bracket structure 70, enclosing the power plug 12, provides all-round isolation and protection for the entire power plug 12, reducing external pressure, impacts, bending, and wear damage, while preventing dust and moisture from entering the plug-in area, improving electrical safety and component durability; on the other hand, at least one of the first protective shell 71 and the second protective shell 72 is provided with a first snap-fit ​​structure 703. 03. By engaging with the second snap-fit ​​structure 121 of the power plug 12, the power plug 12 can be axially and circumferentially fixed, preventing it from loosening, shifting, rotating, or coming off within the wiring channel 706. This avoids problems such as displacement, poor contact, or even detachment due to pulling or vibration, ensuring the stability and reliability of the power connection. Simultaneously, the snap-fit ​​engagement between the plug bracket structure 70 and the power plug 12 requires no additional fasteners, resulting in a simple structure, small footprint, and compact assembly, balancing protective performance, reliable fixation, and ease of assembly. For example, in this embodiment, both the first protective shell 71 and the second protective shell 72 are provided with a first snap-fit ​​structure 703. Specifically, the wall of the wiring channel 706 is provided with a first snap-fit ​​structure 703. The first protective shell 71 and the second protective shell 72 can be detachably connected together using hook structures, screw structures, etc. Of course, in some possible implementations, the first protective shell 71 and the second protective shell 72 can also be non-detachably connected by integral injection molding.

[0076] One of the first snap-fit ​​structure 703 and the second snap-fit ​​structure 121 can be configured as a snap-fit ​​protrusion, and the other of the first snap-fit ​​structure 703 and the second snap-fit ​​structure 121 can be configured as a snap-fit ​​groove that engages with the snap-fit ​​protrusion. For example, the first snap-fit ​​structure 703 is configured as a snap-fit ​​groove, and the second snap-fit ​​structure 121 is configured as a snap-fit ​​protrusion.

[0077] In some possible embodiments, the power plug 12 is provided with a boss structure 122. The plug support structure 70 is provided with a positioning notch 704 that engages with the boss structure 122. Specifically, at least one of the first protective shell 71 and the second protective shell 72 is provided with a positioning notch 704 at the edge of the constraint hole 705. Exemplarily, both the first protective shell 71 and the second protective shell 72 are provided with positioning notches 704 at the edge of the constraint hole 705. Therefore, through the concave-convex alignment and adaptation of the boss structure 122 and the positioning notch 704, the plug bracket structure 70 and the power plug 12 can be quickly aligned and installed, and precisely positioned and assembled, effectively preventing the protective sleeve from shifting, tilting, and rotating around. At the same time, an avoidance and adaptation structure is formed to avoid structural interference between the plug bracket structure 70 and the power plug 12, ensuring that the protective sleeve can be completely fitted onto the outside of the power plug 12, ensuring the protective coverage effect. Moreover, the mutual locking and limiting of the two can enhance the assembly firmness of the protective sleeve and the power plug 12, suppress the loosening and displacement of the protective sleeve during insertion, removal, and pulling, improve the overall structural stability and assembly consistency, and greatly improve the structural adaptability and protective reliability by making the assembly convenient, the positioning accurate, and the protection reliability significantly improved. Specifically, the top of the power plug 12 is provided with a boss structure 122, and the first protective shell 71 is provided with a positioning notch 704 that communicates with the wiring channel 706. Thus, the positioning notch 704 and the wiring channel 706 are connected, which not only provides clearance for the boss structure 122 on the top of the power plug 12, preventing structural interference between the power plug 12 and the plug bracket structure 70 during assembly, ensuring that the plug can be smoothly inserted and positioned, but also forms a fitting assembly structure, enhancing the assembly firmness and tightness of the power plug 12 and the first protective shell 71.

[0078] The first protective shell 71 includes a main body 711 and at least one connecting part 712. The connecting part 712 is fixedly connected to the back of the first display structure 30. The connecting part 712 extends outward relative to the main body 711 toward the side opposite to the second protective shell 72. Thus, by setting the connecting part 712 to extend outward relative to the main body 711 toward the side opposite to the second protective shell 72, interference is avoided in the assembly of the first protective shell 71 and the second protective shell 72 and in the forming of the wiring channel 706, achieving normal insertion and protective coverage of the power plug 12; at the same time, the outward arrangement of the connecting part 712 relative to the main body 711 increases the installation mating area, ensures stable installation positioning, and facilitates assembly operations. The corner connection layout optimizes the overall space utilization, allowing the plug bracket structure 70 to be compactly integrated with the back of the first display structure 30, avoiding abrupt protrusions in the local structure and reducing space occupation; it can also buffer the direct impact of external forces on the main body 711 of the plug bracket structure 70, reducing the risk of the power plug 12 being damaged by pressure or squeezing. The overall structural layout is reasonable, taking into account the installation and fixing strength, assembly independence, structural compactness and plug protection effect.

[0079] In some optional embodiments, the number of connecting portions 712 is set to two, and the two connecting portions 712 are respectively disposed at two corners of the main body portion 711 in the first direction X. Specifically, the two connecting portions 712 are respectively disposed at two corners of the main body portion 711 on the side near the through hole 702. Thus, by disposing the two connecting portions 712 at the corners of the main body portion 711, interference between the connecting portions 712 and the connecting harness 11 of the power cord body 1 can be avoided, facilitating the alignment and assembly of the plug bracket structure 70 and the first display structure 30, and achieving reliable fixed-point installation of the plug bracket structure 70 and the first display structure 30. The fixed point layout is reasonable, the force is evenly distributed, and the overall assembly firmness of the sheath is improved, making it less likely to loosen or fall off due to pulling of the connecting harness 11 or external vibration. Of course, in some possible embodiments, the number of connecting portions 712 can also be set to one, and the connecting portion 712 can also be disposed in the middle of the main body portion 711 in the first direction X. The number and connection position of the connecting portions 712 can be set according to the actual situation, and the embodiments of this application do not impose specific limitations.

[0080] In some optional embodiments, the plug bracket structure 70 also includes a visual structure 80. The visual structure 80 can be disposed on the surface of the second protective shell 72 facing away from the first protective shell 71. Thus, the plug bracket structure can achieve visual display through the visual structure 80, clearly presenting functional identifiers, parameter symbols, prompt icons, etc., with intuitive and eye-catching identification, improving the user's visual experience. The visual structure 80 can identify whether the structure 60 is the same as or different from it. The visual structure 80 can be, but is not limited to, at least one of the following: product name, company name, product model, manufacturer, decorative pattern, etc.

[0081] Please refer to the following: Figures 9 to 10 , Figure 9 This is a schematic diagram of the power connection cable provided in the second embodiment of this application; Figure 10 yes Figure 9An exploded view of the power connection cable. In the second embodiment, the structure of the power connection cable 100 is similar to that of the power connection cable 100 in the first embodiment. The power connection cable 100 includes a power cable body 1 and a power plug fixing device 2. The power cable body 1 includes a connecting wire harness 11 and a power plug 12 connected to the end of the connecting wire harness 11. The power plug fixing device 2 includes a support bracket 20, a first display structure 30, a second display structure 40, and a plug bracket structure 70. The support bracket 20 includes a first support plate 21 and a second support plate 22. The plug bracket structure 70 includes a first protective shell 71 and a second protective shell 72 that are fixed to each other. The difference is that in the second embodiment, one of the first display structure 30 and the second display structure 40 is configured as a display lamp structure, and the other of the first display structure 30 and the second display structure 40 is configured as a display structure. Therefore, the first display structure 30 and the second display structure 40 are configured as an indicator light structure and a display structure, respectively. On the one hand, this achieves a functional zoning layout for indicator light status prompts and screen information display. The indicator light structure can provide simple and intuitive status prompts such as power on / off, working conditions, and fault warnings, while the display structure can provide more detailed visual displays of parameter values, working modes, and operating information. The two types of display functions of the first display structure 30 and the second display structure 40 work together to achieve both simple light indicator prompts and complex graphic and data dynamic displays, enriching product interaction and information display forms, and improving product intelligence and user experience. On the other hand, the separate installation of the first display structure 30 and the second display structure 40 has a clear division of labor and does not interfere with each other's display effects, greatly improving the product's human-computer interaction experience and the comprehensiveness of information display, and also facilitating modular assembly and later maintenance and replacement.

[0082] In the second embodiment, the first display structure 30 is configured as a display structure, and the second display structure 40 is configured as a display lamp structure. Therefore, the first display structure 30 is positioned adjacent to the power plug 12, which is covered by the plug bracket structure 70. On the one hand, this fully utilizes the unused installation space around the power plug 12, rationally plans the component layout path, facilitates observation of the content displayed on the first display structure 30, and improves the user's visual experience. On the other hand, the plug bracket structure 70 provides limiting, buffering, and anti-pull protection for the power plug 12, blocking vibrations and stress transmission caused by plug insertion / removal and external dragging, reducing vibration impact and structural influence on the first display structure 30, ensuring its installation stability and display accuracy. Simultaneously, the proximity of the plug bracket structure 70 and the power plug 12 shortens the internal wiring path, reduces the risk of bending and exposure of connecting lines, facilitates neat wiring arrangement and assembly, and improves the overall assembly efficiency and internal wiring neatness of the power plug fixing device 2. For example, the display panel of the first display structure 30 can be configured as an LCD display screen. Of course, in some possible embodiments, the display panel of the first display structure 30 can also be configured as other types of display screens, the first display structure 30 can also be configured as a display lamp structure, and the second display structure 40 can be configured as a display structure. This application embodiment does not make specific limitations.

[0083] In some optional embodiments, the first display structure 30 or the second display structure 40, configured as a display structure, is provided with a connection interface 33. The connection structure connects to functional components via external connection cables. Thus, the display structure can project user-defined images and videos onto the display panel for display; simultaneously, the display structure can also transmit parameter information such as temperature, voltage, and hardware operating status of the functional components via external connection cables to achieve real-time monitoring and display of the functional components' status. For example, the first display structure 30 is provided with the connection interface 33, which is located on the back of the first display structure 30. Therefore, on the one hand, the connection interface 33 can be hidden in the unused space on the back of the first display structure 30, with no exposed connection interface 33 on the front, keeping the front appearance of the first display structure 30 and the second display structure 40 neat and tidy, improving the overall integration and aesthetics of the device; on the other hand, the rear placement of the connection interface 33 avoids the front display area, does not obstruct the display screen and light indicator effects, and ensures that the display function is not interfered with; at the same time, the back-mounted layout of the connection interface 33 facilitates the external connection harness 11 to connect to functional components nearby, shortens the wiring length, reduces wiring clutter and bending losses, facilitates assembly wiring and later maintenance, and also provides built-in protection for the connection interface 33, reducing the risk of damage from bumps, dust and accidental touches, and improving the connection stability and service life of the connection interface 33. Of course, in some possible embodiments, the connection interface 33 can also be set on the side or front of the first display structure 30.

[0084] In some alternative embodiments, the connection interface 33 may be exposed relative to the connection harness 11, thereby facilitating the connection of external cables to the first display device and functional components, and preventing interference between the external cables and the connection harness 11, thus improving electrical connection performance. Specifically, the connection interface 33 is offset from the second conductor segment 112 and is exposed relative to the second conductor segment 112. Understandably, when the connection interface 33 is located on the back of the second display structure 40, the connection interface 33 is offset from the third conductor segment 113 and is exposed relative to the third conductor segment 113. In another possible implementation, the connection interface 33 may also be hidden relative to the connection harness 11, i.e., the connection harness 11 covers the connection interface 33.

[0085] The connection interface 33 can be configured as a USB interface, and the functional component can be a motherboard, allowing the display structure to be equipped with status parameter detectors such as temperature detectors and voltage detectors to achieve real-time monitoring and display of parameters such as CPU temperature and hardware operating status. The connection interface 33 can also be configured as, but is not limited to, an HDMI interface, a DVI interface, a VGA interface, etc.

[0086] In the second embodiment, the size of the first display structure 30 in the first direction X is equal to the size of the second display structure 40 in the first direction X, and is greater than the size of the plug bracket structure 70 in the first direction X. Therefore, the first display structure 30 and the second display structure 40 have the same dimension in the first direction X, which allows them to be arranged in a neat and orderly manner in this direction. The overall appearance is symmetrical and coordinated, and the assembly is neat and uniform, improving the overall structure and the appearance. At the same time, it provides installation space for the connection interface 33 to be exposed relative to the connection harness 11. On the other hand, the first display structure 30 and the second display structure 40 have a larger dimension in the first direction X than the corresponding dimension of the plug bracket structure 70. This allows the plug bracket structure 70 to be embedded in the area between the two sides of the first display structure 30 and the second display structure 40 in the first direction X, without exceeding the side contour of the display structure. This hides the outward protrusion of the plug bracket structure 70, avoids protrusion and scratches, and makes the overall shape more simple and compact. At the same time, the size difference can also be used to form a limiting and avoidance space, which is convenient for the plug bracket structure 70 to be aligned and assembled and to wrap the protective power plug 12, without occupying extra lateral space. This optimizes the overall space layout and takes into account the assembly adaptability, appearance regularity and the protective function of the power plug 12.

[0087] Please refer to the following: Figure 1 and Figure 11 , Figure 11This is a schematic diagram of the power connection cable provided in the third embodiment of this application. In the third embodiment, the structure of the power connection cable 100 is similar to that of the power connection cable 100 in the first embodiment. The power connection cable 100 includes a power cord body 1 and a power plug fixing device 2. The power cord body 1 includes a connecting wire harness 11 and a power plug 12 connected to the end of the connecting wire harness 11. The power plug fixing device 2 includes a support bracket 20, a first display structure 30, a second display structure 40, and a plug bracket structure 70. The support bracket 20 includes a first support plate 21 and a second support plate 22. The difference is that in the second embodiment, a first wire combing structure 91 is provided on the back of the first display structure 30; and / or, a second wire combing structure 92 is provided on the back of the second display structure 40. Therefore, based on the first wire combing structure 91 and the second wire combing structure 92 respectively provided on the first display structure 30 and the second display structure 40, on the one hand, the second wire segment 112 and the third wire segment 113 corresponding to the connecting wire harness 11 can be oriented, limited, and regulated, restricting the displacement, loosening, twisting, and messy entanglement of the connecting wire harness 11, so that the connecting wire harness 11 is arranged in an orderly manner along the preset path; on the other hand, by providing the first combing structure and the second feeding structure on the back of the first display structure 30 and the second display structure 40 respectively to fit, store, and position the connecting wire harness 11, it can prevent the connecting wire harness 11 from swinging randomly and being squeezed, rubbed, or scratched with the surrounding components, preventing damage to the wire sheath and wire breakage, and improving the safety and durability of the connecting wire harness 11; at the same time, it adapts to the routing layout of the segmented connecting wire harness 11, matches the aforementioned multi-segment wire 1101 section layout, reduces wiring interference, makes full use of the back installation space, and optimizes the compactness of the internal structural layout. In addition, the combing structure of the wire 1101 can realize the pre-installation and positioning of the connecting wire harness 11, reduce the difficulty of assembly and wiring, improve assembly efficiency and wiring consistency, reduce shaking and abnormal noise in the later stage, and further ensure the overall structural stability and electrical connection reliability of the device.

[0088] In some optional embodiments, a third wire combing structure (not shown in the figure) may also be provided within the plug bracket structure 70, which can perform directional combing, limiting, and regularizing constraint on the first wire segment 111 of the connecting wire harness 11 in the corresponding area. The first wire combing structure 91, the second wire combing structure 92, and the third wire combing structure may be provided with multiple combing channels 93 at intervals in the first direction X. The multiple combing channels 93 are provided one-to-one with the multiple wires 1101 of the connecting wire harness 11. Of course, in some possible embodiments, multiple wires 1101 can be combed within the same combing channel 93. This application embodiment does not limit the number of combing channels 93 or the combing method.

[0089] This application embodiment also provides a power connector 100, including a power cord body 1 and a power plug fixing device 2 as described above. The power cord body 1 includes a connecting wire harness 11 and a power plug 12. The power plug 12 is connected to one end of the connecting wire harness 11 and is fixedly connected to the power plug fixing device 2. Thus, this power connector 100 combines the power cord body 1 with the aforementioned power plug fixing device 2. The power plug 12 is fixedly mounted on the power plug fixing device 2. The bearing bracket 20 of the power plug fixing device 2 can reliably position and limit the fixing of the power plug 12 and the connecting wire harness 11. On the one hand, it increases the force-bearing area of ​​the power plug 12 during insertion and removal. Thus, when the operator inserts or removes the power plug 12, the force can be evenly transmitted to the power plug 12 through the bearing bracket 20, avoiding the problem of uneven force application caused by directly holding the plastic shell of the power plug 12 in the traditional way. On the other hand, it prevents the power plug 12 from becoming loose when pulled or bent by external forces. The power plug fixing device 2 protects against displacement and poor contact. Simultaneously, the plug bracket structure 70 of the power plug fixing device 2 provides protective coverage for the power plug 12, buffering against impacts and wear, reducing bending fatigue damage, and extending the service life of the power plug 12 and the power cord body 1. Furthermore, the power plug fixing device 2 integrates a dual-display structure, allowing for real-time visualization of the power connection status, operating parameters, and running conditions of the power connection cable 100. This achieves an integrated design of power connection, status display, protection, and fixing, resulting in a compact overall structure, robust assembly, excellent protective performance, and superior human-machine interaction, thus enhancing the overall reliability and practicality of the power connection cable 100.

[0090] The above description is merely a specific implementation of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power plug fixing device, characterized in that, include: A support bracket, comprising a first support plate and a second support plate, wherein the first support plate is bent relative to the second support plate; A first display structure, wherein the back side of the first display structure is fixedly connected to the first support plate; The second display structure is fixedly connected to the second support plate on its back side. A plug bracket structure is fixedly connected to the back of the first display structure and is used to be sleeved on the outside of the power plug of the power cord body.

2. The power plug fixing device according to claim 1, characterized in that, The support bracket also includes multiple reinforcing ribs, which are spaced apart at the connection between the first support plate and the second support plate.

3. The power plug fixing device according to claim 2, characterized in that, The reinforcing rib is configured as a triangular pyramidal rib, and the corner of the reinforcing rib facing the power cord body is provided with an arc-shaped surface.

4. The power plug fixing device according to claim 1, characterized in that, The first display structure, the second display structure, and the plug bracket structure together form a semi-open limiting groove. The limiting groove is used to accommodate the connecting wire harness of the power cord body. The opening direction of the limiting groove is parallel to the insertion and removal direction of the power plug.

5. The power plug fixing device according to claim 1, characterized in that, The back of the first display structure is provided with a first wire combing structure; and / or, the back of the second display structure is provided with a second wire combing structure.

6. The power plug fixing device according to claim 1, characterized in that, The first display structure includes a first display body and a first display part. The first display body is fixedly connected to the first support plate, and the first display part is disposed on the side of the first display body facing away from the first support plate and is configured as a light-transmitting plate or a display panel. The second display structure includes a second display body and a second display part. The second display body is fixedly connected to the second support plate, and the second display part is disposed on the side of the second display body facing away from the second support plate and is configured as a light-transmitting plate or a display panel.

7. The power plug fixing device according to claim 6, characterized in that, Both the first display structure and the second display structure are configured as a display lamp structure or a display structure; or, both the first display structure and the second display structure are configured as a display lamp structure or a display structure; or, one of the first display structure and the second display structure is configured as a display lamp structure; and the other of the first display structure and the second display structure is configured as a display structure.

8. The power plug fixing device according to claim 1, characterized in that, At least one of the first display structure and the second display structure is configured as a display structure. The display structure is provided with a connection interface, which is exposed relative to the connection harness of the power cord body and is used to connect to functional components via external connection cables.

9. The power plug fixing device according to claim 1, characterized in that, The plug bracket structure includes a first protective shell and a second protective shell. The first protective shell and the second protective shell are connected to form a wiring channel for the power plug to pass through. At least one of the first protective shell and the second protective shell is provided with a first snap-fit ​​structure, which is used to snap-fit ​​with a second snap-fit ​​structure provided on the power plug.

10. A power connection cable, characterized in that, The device includes a power cord body and a power plug fixing device as described in any one of claims 1-9. The power cord body includes a connecting wire harness and a power plug. The power plug is connected to one end of the connecting wire harness and is fixedly connected to the power plug fixing device.