Power cable

Abstract

This utility model relates to a power connection cable, including a single-connection plug (1) for connecting to a power source, the single-connection plug (1) including a first insulating shell and at least two pins disposed within the first insulating shell; a multi-connection plug (3) for connecting to electrical equipment, the multi-connection plug (3) including a second insulating shell and at least two sockets disposed on the second insulating shell, the sockets corresponding one-to-one with the pins; and an electric wire (2), the electric wire (2) containing at least two independent conductive cores, the electric wire (2) being a multi-layer composite structure. The advantages of this utility model are: by setting a spring-driven anti-electric shock protection cover on the single-connection plug, the pins are automatically covered when not in use, fundamentally eliminating the risk of accidental contact; at the same time, the waterproof sealing ring set on the multi-connection plug can effectively prevent moisture intrusion, improving the safety of use in complex environments.

Description

Technical Field

[0001] This utility model relates to a power connection cable and belongs to the technical field of electrical connection accessories. Background Technology

[0002] Power cables, as fundamental electrical accessories connecting power sources and electrical equipment, directly impact the operational stability of the equipment and the safety of the user. These cables are widely used in various electronic devices, charging equipment, and DC power supply systems, such as monitors, security cameras, routers, and many low-voltage power tools. However, traditional DC power cables currently on the market often prioritize basic conductivity in their design, with significant shortcomings in safety, durability, and interference resistance, making them insufficient to meet the increasingly demanding power environment and quality requirements.

[0003] Firstly, regarding safety, the plugs of traditional DC power cords have a simple structure, with their metal prongs often directly exposed during daily storage and plugging / unplugging. This not only easily leads to short circuits and sparks due to accidental contact with metal objects, but also poses a serious risk of electric shock to curious children. Furthermore, the connectors generally lack necessary waterproofing design, meaning that when used in damp environments such as kitchens, bathrooms, or outdoors where water may splash, there is a risk of moisture intrusion causing short circuits or leaks, resulting in a low safety factor.

[0004] Secondly, regarding cable structure and electromagnetic compatibility, traditional cables typically employ a two- or three-layer structure. This simplified structure makes them highly susceptible to interference from complex external electromagnetic environments and may also radiate electromagnetic noise. For precision instruments requiring high transmission stability, such interference can lead to data packet loss, signal distortion, or equipment malfunction. Furthermore, cables lack sufficient mechanical strength and abrasion resistance. Under daily physical stresses such as dragging, bending, and stepping, the outer sheath is easily worn, and the internal insulation layer may crack, potentially causing a short circuit.

[0005] Finally, regarding long-term durability, the connection points between the wire and the plug / connector are typical stress concentration points. Traditional designs lack effective stress buffering and protection mechanisms at these locations. Long-term, repeated bending and pulling stresses directly act on the solder or crimp points of the internal conductive core, easily leading to fatigue fracture of the core. This fracture is sometimes internal, with the external insulation layer intact but the internal circuitry broken or making poor contact. The problem is hidden and difficult to diagnose, severely impacting service life and posing a potential fire hazard. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides a power connection cable. The technical solution of this utility model is as follows: A power connection cable includes a single-connection plug (1) for connecting to a power source, the single-connection plug (1) including a first insulating shell and at least two pins disposed within the first insulating shell, the pins including a positive pin and a negative pin; a multi-connection plug (3) for connecting to an electrical device, the multi-connection plug (3) including a second insulating shell and at least two sockets disposed on the second insulating shell, the sockets corresponding one-to-one with the pins; an electric wire (2) containing at least two independent conductive cores inside the electric wire (2), the two ends of the electric wire (2) being fixedly connected to the single-connection plug (1) and the multi-connection plug (3) respectively, and electrically connecting the pins of the single-connection plug (1) to the sockets of the multi-connection plug (3); wherein, the end of the first insulating shell of the single-connection plug (1) is provided with a slidable anti-electric shock protective cover; the electric wire (2) is a multi-layer composite structure, including, from the inside out, a conductor layer (21), an insulation layer (22), a shielding layer (23) and an outer sheath (24).

[0007] The electric shock protection cover is connected to the first insulating shell by a spring. When the single plug end (1) is not in use, the electric shock protection cover automatically covers the plug under the action of the spring. When the single plug end (1) is inserted into the socket, the electric shock protection cover is compressed into the first insulating shell.

[0008] The shielding layer (23) is an aluminum foil shielding layer or a woven copper mesh shielding layer.

[0009] The outer sheath (24) is made of polyvinyl chloride or rubber, and the outer surface of the outer sheath (24) is provided with anti-slip texture.

[0010] The second insulating shell of the multi-connector terminal (3) is provided with a waterproof sealing ring, which surrounds the socket.

[0011] The first insulating shell of the single-connector plug (1) is provided with a gripping part, and the surface of the gripping part is provided with a textured surface.

[0012] Stress relief sleeves are provided at the connection points of the wire (2) with the single-connection plug (1) and the multi-connection plug (3).

[0013] The stress-relieving sleeve is made of an elastic material.

[0014] The advantages of this utility model are: 1. By setting a spring-driven anti-electric shock protection cover at the single-connection plug end, the plug pins are automatically covered when not in use, fundamentally eliminating the risk of accidental contact; at the same time, the waterproof sealing ring set at the multi-connection plug end can effectively prevent moisture and water vapor from entering, improving the safety of use in complex environments.

[0015] 2. The wire adopts a multi-layer composite structure including a shielding layer, and elastic stress-relieving sleeves are installed at key connection points between the cable and the connector. This design significantly enhances the tensile strength, abrasion resistance, and bending resistance of the wire, and effectively disperses external stress, preventing internal core breakage due to long-term dragging and bending, thus greatly extending the overall service life of the product.

[0016] 3. The wire has an internal aluminum foil or braided copper mesh shielding layer. This design can effectively suppress and block external electromagnetic interference, ensuring that pure and stable DC power is provided to the connected sensitive electronic equipment, thus guaranteeing the reliability of the equipment operation.

[0017] 4. The single-connector end has a grip with textured grooves, which, together with the anti-slip texture of the outer sheath of the wire, provides users with a good grip and holding force, making plugging and unplugging operations more effortless and smooth, and improving the user experience of the product.

[0018] 5. This product integrates multiple practical functions such as protection against electric shock, waterproofing, stress relief, electromagnetic shielding, and anti-slip grip, solving the multiple shortcomings of traditional power cords in terms of safety, durability, and applicability, and has high market application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 2 yes Figure 1 A three-dimensional image.

[0021] Figure 3 yes Figure 1 A cross-sectional view of the central wire. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0023] See Figures 1 to 3This utility model relates to a power connection cable, including a single-connection plug 1 for connecting to a power source, the single-connection plug 1 including a first insulating shell and at least two pins disposed within the first insulating shell, the pins including a positive pin and a negative pin; a multi-connection plug 3 for connecting to electrical equipment, the multi-connection plug 3 including a second insulating shell and at least two sockets disposed on the second insulating shell, the sockets corresponding one-to-one with the pins; an electric wire 2, the electric wire 2 containing at least two independent conductive cores, the two ends of the electric wire 2 being fixedly connected to the single-connection plug 1 and the multi-connection plug 3 respectively, and electrically connecting the pins of the single-connection plug 1 to the sockets of the multi-connection plug 3; wherein, the end of the first insulating shell of the single-connection plug 1 is provided with a slidable anti-electric shock protective cover; the electric wire 2 is a multi-layer composite structure, including, from the inside out, a conductor layer 21, an insulating layer 22, a shielding layer 23 and an outer sheath 24.

[0024] By installing a sliding anti-electric shock protective cover on the single-pin plug end, the metal pins can be automatically covered and isolated when not in use, fundamentally preventing the risk of electric shock caused by accidental contact and significantly improving the safety of product use.

[0025] The wire adopts a multi-layer composite structure from the conductor layer to the outer sheath, and stress relief sleeves are set at the key connection points between the cable and the connector. This design greatly enhances the mechanical strength, wear resistance and bending resistance of the wire, effectively extending the service life of the product.

[0026] A shielding layer is incorporated into the wire structure, which effectively suppresses and blocks external electromagnetic interference, ensuring the stability of power transmission. It is particularly suitable for powering precision electronic equipment that is sensitive to power quality.

[0027] The electric shock protection cover is connected to the first insulating shell via a spring. When the single-connector plug 1 is not in use, the electric shock protection cover automatically covers the plug pin under the action of the spring; when the single-connector plug 1 is inserted into the socket, the electric shock protection cover is compressed into the first insulating shell. This spring-linked structure realizes the automatic opening and closing of the electric shock protection cover without manual operation, ensuring absolute safety protection when not in use, and guaranteeing smooth and convenient plugging in, effectively improving product safety and user experience.

[0028] The shielding layer 23 is an aluminum foil shielding layer or a woven copper mesh shielding layer. By using aluminum foil or woven copper mesh as the shielding layer, external electromagnetic interference can be effectively suppressed and guided away, ensuring the signal transmission quality and operational stability of the power connection cable in complex electromagnetic environments.

[0029] The outer sheath 24 is made of polyvinyl chloride or rubber, and its outer surface is provided with anti-slip texture. This outer sheath structure combines good insulation protection with physical durability, and its anti-slip texture design significantly enhances the grip during insertion and removal, improving ease of operation while ensuring safety.

[0030] The second insulating shell of the multi-connector terminal 3 is provided with a waterproof sealing ring, which surrounds the socket. This effectively prevents liquid and moisture from entering the connector through the socket gap, significantly improving the safety and reliability of the connector in humid environments.

[0031] The first insulating shell of the single-connector end 1 is provided with a grip portion, the surface of which is provided with a textured surface. The textured surface of the grip portion increases the friction between the hand and the shell, providing a stable grip point for the user to insert and remove the plug, effectively preventing slippage and improving the convenience and safety of operation.

[0032] Stress-relieving sleeves are fitted at the connection points of the wire 2 with both the single-connector end 1 and the multi-connector end 3. The stress-relieving sleeves are made of elastic material.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A power connection cable, characterized in that, include: A single plug terminal (1) for connecting to a power source, the single plug terminal (1) includes a first insulating shell and at least two pins disposed within the first insulating shell, the pins including a positive pin and a negative pin; A multi-connector terminal (3) for connecting electrical equipment includes a second insulating shell and at least two sockets disposed on the second insulating shell, wherein each socket corresponds to a pin. The wire (2) contains at least two independent conductive cores inside. The two ends of the wire (2) are fixedly connected to the single-connection plug (1) and the multi-connection plug (3) respectively, and the pins of the single-connection plug (1) are electrically connected to the sockets of the multi-connection plug (3). The first insulating shell of the single plug end (1) is provided with a sliding anti-electric shock protective cover at the end; the wire (2) is a multi-layer composite structure, which includes a conductor layer (21), an insulation layer (22), a shielding layer (23) and an outer sheath (24) from the inside to the outside.

2. The power connection cable according to claim 1, characterized in that, The electric shock protection cover is connected to the first insulating shell by a spring. When the single plug end (1) is not in use, the electric shock protection cover automatically covers the plug under the action of the spring. When the single plug end (1) is inserted into the socket, the electric shock protection cover is compressed into the first insulating shell.

3. The power connection cable according to claim 1, characterized in that, The shielding layer (23) is an aluminum foil shielding layer or a woven copper mesh shielding layer.

4. The power connection cable according to claim 1, characterized in that, The outer sheath (24) is made of polyvinyl chloride or rubber, and the outer surface of the outer sheath (24) is provided with anti-slip texture.

5. The power connection cable according to claim 1, characterized in that, The second insulating shell of the multi-connector terminal (3) is provided with a waterproof sealing ring, which surrounds the socket.

6. The power connection cable according to claim 1, characterized in that, The first insulating shell of the single-connector plug (1) is provided with a gripping part, and the surface of the gripping part is provided with a textured surface.

7. The power connection cable according to claim 1, characterized in that, Stress relief sleeves are provided at the connection points of the wire (2) with the single-connection plug (1) and the multi-connection plug (3).

8. The power connection cable according to claim 7, characterized in that, The stress-relieving sleeve is made of an elastic material.

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