Power cable

Abstract

The invention discloses a power cable. The power cable comprises a cable main body and a functional module. The cable main body comprises a wiring plug, a power supply plug and a connecting wire harness. The wiring plug is connected with a functional element, and the power supply plug is connected with a power supply interface. The connecting wire harness is connected between the wiring plug and the power supply plug and comprises a first flat cable. The first flat cable comprises a plurality of first wires. The function module comprises a current sharing part and an insulating part. The plurality of first wires of the first flat cable are connected in parallel through the current sharing member. The insulating part wraps the outer side of the flow equalizing part. By adopting the power supply cable, the current equalizing piece can uniformly distribute current to each first lead, so that the problems of serious heating of leads or connecting contacts corresponding to high-current pins and impedance difference of a power supply line caused by current imbalance are avoided, the service life is prolonged, and the stability and reliability of the working performance of functional elements are improved; the arrangement of the insulating part can improve the safety, environment resistance and service life of the power supply cable.

Description

Technical Field

[0001] This application relates to the technical field of power output cables, and particularly to a power cable. Background Art

[0002] With the rapid development of computer electronics technology, power cables, as key components for electrical connections, are widely used in computer products. However, in the existing connecting wire bundles of power cables, the flexible flat cables are prone to inconsistent elasticity of each terminal under long-term stress, resulting in uneven current in each wire of the flexible flat cable, thereby reducing the service life of the power cable and affecting the performance of the functional components connected to the power cable. Summary of the Invention

[0003] In view of this, an object of this application is to provide a power cable to solve the technical problem that in the existing connecting wire bundles of power cables, the flexible flat cables are prone to inconsistent elasticity of each terminal under long-term stress, resulting in uneven current in each wire of the flexible flat cable, thereby reducing the service life of the power cable and affecting the working performance of the functional components connected to the power cable.

[0004] This application provides a power cable, including a cable body and a functional module. The cable body includes a connection plug, a power supply plug, and a connecting wire bundle. The connection plug is used to connect to a functional component, and the power supply plug is used to connect to a power supply interface. The connecting wire bundle is connected between the connection plug and the power supply plug and includes a first flexible flat cable, and the first flexible flat cable includes multiple first wires. The functional module includes a current sharing component and an insulating component. The multiple first wires of the first flexible flat cable are connected in parallel through the current sharing component. The insulating component is coated on the outer side of the current sharing component.

[0005] In some implementation manners, each first wire includes a core wire and an insulating sheath, the insulating sheath is coated on the outer side of the core wire, and the insulating sheath of each first wire is provided with a notch exposing the core wire at the end close to the connection plug, and the current sharing component is arranged at the notch and connected to the core wire.

[0006] In some implementation manners, the notch is arranged in a circle around the circumferential direction of the first wire, the current sharing component includes multiple first connection parts and at least one second connection part, the second connection part is connected between two adjacent first connection parts, the first connection part is configured as a hollow cylindrical structure and sleeved on the core wire exposed at the notch, and the second connection part is configured as an arched structure or a planar structure.

[0007] In some implementations, the power cable is configured as a graphics card power supply line, a motherboard power supply line, a central processing unit power supply line, or a SATA interface power supply line. The first cable harness is provided in a plurality, and the current sharing component is provided in at least one. A plurality of the first conductors of at least one of the first cable harnesses are connected in parallel through the corresponding current sharing component.

[0008] In some implementations, the power cable is configured as the graphics card power supply line. The first cable harness and the current sharing component are each provided in two. The two current sharing components are insulated from each other. A plurality of the first conductors of each of the first cable harnesses are connected in parallel through the corresponding current sharing component.

[0009] In some implementations, the functional module further includes a protective housing. The insulating member is disposed close to the wiring plug and is spaced apart from the wiring plug. The protective housing is wrapped around the outside of the insulating member. The protective housing is snap-fitted to an end of the wiring plug close to the power supply plug. The connection cable harness passes through an end of the protective housing away from the wiring plug.

[0010] In some implementations, the functional module further includes a control circuit board, a temperature detector, and at least one display structure. The control circuit board is electrically connected to the temperature detector, all the display structures, and the current sharing component. The temperature detector is used to detect the temperature of the current sharing component. The control circuit board is used to control at least one of the display structures to display the current temperature information of the current sharing component detected by the temperature detector. Wherein, the current temperature information includes at least one of a temperature value and a temperature level.

[0011] In some implementations, a conductive connection hole is provided on a side wall of the insulating member. The functional module further includes a conductive connection member. One end of the conductive connection member is electrically connected to the current sharing component. The other end of the conductive connection member passes through the conductive connection hole and is electrically connected to the control circuit board.

[0012] In some implementations, the protective housing includes a first housing and a second housing that cooperates with and is fixed to the first housing. The first housing is provided with a first limiting groove. The second housing is provided with a second limiting groove that is oppositely arranged to the first limiting groove. In the thickness direction of the power cable, one end of the insulating member is defined in the first limiting groove, and the other end of the insulating member is defined in the second limiting groove.

[0013] In some implementations, the connection cable harness further includes a second cable harness. The second cable harness includes a plurality of second conductors. The second cable harness is disposed between the insulating member and the protective housing.

[0014] The power cable provided by this application is based on an additional functional module. The functional module includes a current-sharing component and an insulating component. On the one hand, multiple first conductors of the first cable are connected in parallel through the current-sharing component, so that the current-sharing component can evenly distribute the current to each first conductor, thus avoiding the problems of severe heating of the conductor or connection contact corresponding to the high-current pin caused by uneven current and the impedance difference of the power supply line, thereby extending the service life of the power cable and improving the stability and reliability of the working performance of the functional components connected to the power cable; on the other hand, the insulating component is coated on the outside of the current-sharing component, so that the insulating component can effectively isolate the current, prevent electric leakage and reduce insulation loss, and prevent moisture, corrosion and mechanical damage, thereby improving the safety and environmental resistance of the power cable and extending the service life of the power cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the power cable provided by the embodiment of this application.

[0017] Figure 2 is Figure 1 an exploded view of the power cable in the first perspective in.

[0018] Figure 3 is Figure 2 an enlarged view of the current-sharing component of the power cable in.

[0019] Figure 4 is Figure 1 an exploded view of the power cable in the second perspective in.

[0020] Figure 5 is Figure 1 a side view of the partial structure of the power cable in.

[0021] Description of Main Reference Numerals: Power cable - 100; Cable body - 1; Wiring plug - 11; Plug body - 111; Wiring terminal - 112; Flange base - 113; Power supply plug - 12; Connection harness - 13; First row of wires - 131; First wire - 1310; Core wire - 1311; Insulating sheath - 1312; Notch - 1313; First sub-row of wires - 132; Second sub-row of wires - 134; Second row of wires - 135; Second wire - 1351; Function module - 2; Current sharing component - 20; First connection part - 21; Second connection part - 22; Insulating part - 30; Wire passing hole - 301; Conductive connection hole - 302; Positioning structure - 31; Limiting step - 311; Protective housing - 40; Storage cavity - 401; Through hole - 402; Mounting hole - 403; Positioning groove - 404; Card slot - 405; First limiting groove - 406; Second limiting groove - 407; Storage groove - 408; First housing - 41; First lug - 411; Fixing hole - 4111; Second housing - 42; Second lug - 421; Connection hole - 4211; Locking part - 43; Decorative plate - 44; Control circuit board - 50; Conductive guiding structure - 501; Temperature detector - 60; Display structure - 70; Conductive connection part - 80; Symmetry plane - S; Axial direction - X; Thickness direction - Z.

[0022] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific Embodiments

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0024] It can be understood that the terms in the description, claims and the above-mentioned drawings of this application are only for describing specific embodiments, and are not intended to limit this application. The terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish different objects, rather than to describe a specific order. Unless otherwise clearly stated in the context, the singular forms "a" and "the" are also intended to include the plural forms. The term "comprising" and any variations thereof are intended to cover non-exclusive inclusion. In addition, this application can be implemented in many different forms and is not limited to the embodiments described in this example. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosed content of this application. The words indicating directions such as up, down, left, and right are only in terms of the positions of the shown structures in the corresponding drawings. In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set on..." should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The subsequent description in the specification is for the preferred embodiments of implementing this application. However, the above description is for the purpose of explaining the general principles of this application and is not intended to limit the scope of this application. The protection scope of this application shall be subject to what is defined by the appended claims.

[0026] First, the basic concepts involved in the embodiments of this application will be briefly introduced below.

[0027] The term "Central Processing Unit (CPU)" is the operation and control core of a computer system and is the final execution unit for information processing and program operation.

[0028] The term "SATA interface" is the abbreviation of Serial ATA, also known as Serial ATA. It was developed by the "Serial ATA Working Group" in November 2000. It is a computer bus, and its main function is to be used for data transmission between the motherboard and a large number of storage devices (such as hard disks and optical disc drives).

[0029] The power cable in the embodiments of this application is used to connect the power interface and functional components. The functional components include but are not limited to power-consuming devices such as graphics cards, motherboards, central processing units, or SATA interfaces, and the embodiments of this application do not make limitations. The power cable is configured as but not limited to a graphics card power supply line, a motherboard power supply line, a central processing unit power supply line, or a SATA interface power supply line.

[0030] Understandably, to enable those skilled in the art to better understand the power cable, taking the power cable configured to be connected to a graphics card, i.e., the power cable configured as a power supply line for the graphics card as an example for detailed description. It should be noted that the power supply line for the graphics card is only used for illustration, and the embodiments of the present application do not make specific limitations. For example, the product type of the power cable can also be set according to actual needs.

[0031] Please refer to Figures 1 to 2 , Figure 1 which is a schematic structural diagram of the power cable 100 provided by the embodiments of the present application; Figure 2 is Figure 1 an exploded view of the power cable 100 in a first perspective in. The power cable 100 includes a cable body 1 and a functional module 2. The cable body 1 includes a connection plug 11, a power supply plug 12, and a connection wire bundle 13. The connection plug 11 is used to connect to a functional element, and the power supply plug 12 is used to connect to a power supply interface. The connection wire bundle 13 is connected between the connection plug 11 and the power supply plug 12 and includes a first cable 131. The first cable 131 includes a plurality of first wires 1310. The functional module 2 includes a current sharing member 20 and an insulating member 30. The plurality of first wires 1310 of the first cable 131 are connected in parallel through the current sharing member 20. The insulating member 30 is coated on the outside of the current sharing member 20.

[0032] For the power cable 100 provided by the embodiments of the present application, based on the addition of the functional module 2, the functional module 2 includes a current sharing member 20 and an insulating member 30. On the one hand, the plurality of first wires 1310 of the first cable 131 are connected in parallel through the current sharing member 20, so that the current sharing member 20 can evenly distribute the current to each first wire 1310, thereby avoiding the problems of severe heating of the wire or connection contact corresponding to the high-current pin caused by uneven current and the impedance difference of the power supply line, and further extending the service life of the power cable 100 and improving the stability and reliability of the working performance of the functional element connected to the power cable 100; on the other hand, the insulating member 30 is coated on the outside of the current sharing member 20, so that the insulating member 30 can effectively isolate the current, prevent electric leakage and reduce insulation loss, and prevent moisture, corrosion and mechanical damage, thereby improving the safety and environmental resistance of the power cable 100 and extending the service life of the power cable 100.

[0033] It should be noted that Figure 1 is only intended to schematically describe the setting manner between the cable body 1 and the functional module 2, and does not make specific limitations on the connection positions, connection relationships, and specific structures of each element. Figure 1 is only the structure of the power cable 100 schemed by the embodiments of the present application, and does not constitute a specific limitation on the power cable 100. In other embodiments of the present application, the power cable 100 may include more than Figure 1More or fewer components as shown, or combining certain components, or different components. For example, the power cable 100 may further include, but is not limited to, a cable length adjustment structure, a current detection structure, and the like.

[0034] In this embodiment, the functional module 2 is disposed at the end of the connection wire harness 13 close to the connection plug 11. Thus, on the one hand, it avoids the problem that the functional module 2 is disposed in the middle or near the middle of the connection wire harness 13, which affects the bending and extending movement of the connection wire harness 13; on the other hand, the functional module 2 is disposed close to the connection plug 11, thereby avoiding the problem that the current sharing member 20 is bent under the action of the bending force, reducing the connection reliability with the core wire 1311, and improving the current sharing effect of the current sharing member 20 on the current of the first wire 1310. Of course, in some embodiments, the functional module 2 may be disposed at other positions of the connection wire harness 13, and the embodiments of the present application do not make specific limitations.

[0035] In this embodiment, multiple first wires 1310 are arranged at equal intervals. Any two adjacent first wires 1310 are arranged in parallel. Thus, the heat distribution of the multiple first wires 1310 when carrying current is consistent, preventing a certain first wire 1310 from concentrating heat due to too small a spacing. And the consistent spacing of the multiple first wires 1310 arranged in parallel can reduce the mutual inductance effect under high-frequency current, avoid voltage fluctuations caused by electromagnetic interference, and the stress distribution of the equally spaced first wires 1310 is uniform when bending, avoiding a single first wire 1310 from bearing additional mechanical stress due to spacing compression, and improving the installation convenience. Of course, in some embodiments, some of the multiple first wires 1310 may also be arranged at unequal intervals.

[0036] Exemplarily, in this embodiment, each first wire 1310 includes a core wire 1311 and an insulating sheath 1312. The insulating sheath 1312 is coated on the outer side of the core wire 1311. The insulating sheath 1312 of each first wire 1310 is provided with a notch 1313 exposing the core wire 1311 at the end close to the connection plug 11. The current sharing member 20 is disposed at the notch 1313 and connected to the core wire 1311. Thus, on the one hand, based on the notch 1313 exposing the core wire 1311 provided on the insulating sheath 1312, it is convenient for assembling the current sharing member 20 and the first wire 1310; on the other hand, based on the notch 1313 exposing the core wire 1311 provided at the end of the insulating sheath 1312 close to the connection plug 11, it avoids the problem that the current sharing member 20 is disposed in the middle of the first wire 1310, which affects the bending and extending movement of the first wire 1310, avoids the problem that the current sharing member 20 is bent, reducing the reliability and stability of the connection with the core wire 1311, and the current sharing member 20 can regularize the end of the first wire 1310 close to the connection plug 11 to improve the reliability and stability of the connection between the connection plug 11 and the functional component.

[0037] The notch 1313 is annular. Specifically, the notch 1313 is arranged in a circle around the circumferential direction of the first wire 1310. The current-sharing member 20 is embedded in the notch 1313. Thus, on the one hand, the processing difficulty of the first wire 1310 and the current-sharing member 20 is reduced, and the assembly efficiency of the current-sharing member 20 and the first wire 1310 is improved; on the other hand, the connection area between the current-sharing member 20 and the core wire 1311 is increased, the connection reliability and stability are improved, and the space utilization rate of the current-sharing member 20 in the insulating member 30 is improved, realizing miniaturized design. Specifically, the length of the notch 1313 in the axial direction X of the first wire 1310 may be equal to or slightly greater than the length of the current-sharing member 20 in the axial direction X of the first wire 1310. Of course, in some embodiments, the notch 1313 may also be arc-shaped. For example, the notch 1313 is arranged in a semi-circle around the circumferential direction of the first wire 1310. The setting method and the setting position of the notch 1313 may be set according to the actual situation, and the embodiments of the present application do not make specific limitations.

[0038] Please refer to Figure 2 and Figure 3 , Figure 3 is Figure 2An enlarged view of the current equalizer 20 of the power cable 100 in FIG. The current equalizer 20 includes a plurality of first connection parts 21 and at least one second connection part 22. The second connection part 22 is connected between two adjacent first connection parts 21. The first connection part 21 is configured as a hollow cylindrical structure and is sleeved at the position of the core wire 1311 corresponding to the notch 1313. The second connection part 22 is configured as an arch structure or a planar structure. Thus, on the one hand, the first connection part 21 and the second connection part 22 are alternately arranged, so that the second connection part 22 can limit the spacing between two adjacent first conductors 1310, so that the heat distribution of multiple first conductors 1310 when carrying current is consistent, preventing a certain first conductor 1310 from concentratedly heating due to too small a spacing, and the consistent spacing of multiple first conductors 1310 arranged in parallel can reduce the mutual inductance effect under high-frequency current, avoid voltage fluctuations caused by electromagnetic interference, and the stress distribution of the equidistantly arranged first conductors 1310 is uniform when bending, avoiding a single first conductor 1310 from being subjected to additional mechanical stress due to spacing compression, and improving installation convenience. On the other hand, the first connection portion 21 is sleeved on the position of the core wire 1311 corresponding to the notch 1313, thereby increasing the connection area between the current equalizer 20 and the core wire 1311 and improving the connection reliability and stability; on the other hand, when the second connection portion 22 is configured as an arch structure, the second connection portion 22 can press the first connection portion 21 against the core wire 1311 along the axial direction X, thereby improving the stability and reliability of the connection between the core wire 1311 and the current equalizer 20, and facilitating the alignment and assembly of the current equalizer 20 and the insulating member 30. When the second connection portion 22 is configured as a planar structure, the processing mold of the current equalizer 20 is simplified, and the processing difficulty of the current equalizer 20 is reduced.

[0039] In the present embodiment, the first connection part 21 and the second connection part 22 are integrally formed, thereby improving the reliability and stability of the connection between the first connection part 21 and the second connection part 22, and achieving the uniformity of the overall mechanical properties of the current equalizer 20. Specifically, the current equalizer 20 is set on the core wire 1311 by crimping. Therefore, on the one hand, the crimping process enables the current equalizer 20 to form a large-area metal contact with the surface of the core wire 1311, effectively reducing the contact resistance and reducing the current distribution deviation caused by uneven resistance; on the other hand, the crimped current equalizer 20 forms a permanent mechanical connection with the core wire 1311, which is not easy to loosen under vibration or bending conditions, avoiding local overheating caused by poor contact, and the contact can withstand higher axial tension; on the other hand, the crimping force and mold size are standardized to avoid individual differences in manual welding or bolt tightening, ensure the uniformity of current distribution of each core wire 1311, and improve assembly production efficiency.

[0040] Specifically, the current sharing member 20 may be in a strip structure before crimping. The strip structure may be configured as a wavy structure, so as to facilitate the alignment and assembly of multiple first conductors 1310 and the current sharing member 20. After the current sharing member 20 is crimped to the core wire 1311 by a crimping tool, the current sharing member 20 forms a structure in which the first connection portions 21 and the second connection portions 22 are arranged alternately. Of course, in some embodiments, the first connection portions 21 and the second connection portions 22 may also be independently arranged and fixedly connected. The first connection portions 21 and the second connection portions 22 may be fixedly connected by welding or crimping. The current sharing member 20 may also be arranged on the core wire 1311 by welding or other means, and the embodiments of the present application do not make specific limitations.

[0041] Exemplarily, in this embodiment, the outer shape of the second connection portion 22 is generally trapezoidal. The outer shape of the second connection portion 22 may also be, but is not limited to, semicircular, rectangular, etc. The bending direction of the second connection portion 22 is the same as that of the first connection portion 21. In other words, the second connection portion 22 is recessed inward on the side facing the core wire 1311, so that the second connection portion 22 can provide a sufficiently large attachment surface during the injection molding process of the insulating member 30, enhancing the reliability and stability of the connection between the insulating member 30 and the current sharing member 20. The material of the current sharing member 20 may be, but is not limited to, copper, copper alloy, aluminum, aluminum alloy, etc. In this embodiment, the material of the current sharing member 20 may be copper.

[0042] The insulating member 30 and the current sharing member 20 are connected to form an integral structure. Exemplarily, in this embodiment, the insulating member 30 is coated on the outside of the current sharing member 20 by an injection molding process. Thus, based on the injection molding process of the insulating member 30, on the one hand, the insulating member 30 can tightly wrap the outside of the current sharing member 20 to form a uniform insulating layer, thereby improving the insulation performance of the power cable 100 and the reliability and stability of the connection between the current sharing member 20 and the core wire 1311; on the other hand, the setting of the insulating member 30 can prevent the connection wire bundle 13 of the power cable 100 from being bent and bundled near the connection plug 11, avoiding the problem that the elastic forces of the respective connection terminals 112 corresponding to the connection plug 11 are inconsistent under long-term stress, improving the reliability and stability of the connection between each connection terminal 112 and the functional member, and improving the current uniformity of each connection terminal 112.

[0043] Of course, in some embodiments, the insulating member 30 and the current sharing member 20 are independently arranged and fixedly connected. For example, the insulating member 30 may include two insulators that are snap-fitted and fixed, and the current sharing member 20 and multiple first guides are clamped between the two insulators.

[0044] The insulating member 30 is provided with a plurality of wire passing holes 301 arranged at intervals. A plurality of first wires 1310 are respectively passed through the plurality of wire passing holes 301. Thus, on the one hand, the plurality of wire passing holes 301 arranged at intervals can define the distance between two adjacent first wires 1310, so that the heat distribution of the plurality of first wires 1310 when carrying current is uniform, preventing a certain first wire 1310 from concentrating heat due to too small a distance, and the uniform distance between parallel wires can reduce the mutual inductance effect under high-frequency current, avoiding voltage fluctuations caused by electromagnetic interference, and the stress distribution of the first wires 1310 arranged at equal distances is uniform when bent, avoiding a single first wire 1310 from bearing additional mechanical stress due to distance compression, and improving the installation convenience; on the other hand, the plurality of wire passing holes 301 can regularize the end portions of the first wires 1310 close to the connection plug 11, so as to improve the reliability and stability of the connection between the connection plug 11 and the functional member.

[0045] The length of the insulating member 30 in the axial direction X of the first wire 1310 is greater than the length of the current sharing member 20 in the axial direction X of the first wire 1310. Thus, the problem that the core wire 1311 breaks due to the action of external force at the edge of the notch 1313 is avoided, the overall structural strength of the power cable 100 is improved, the insulation performance of the power cable 100 is improved, and the reliability and stability of the connection between the current sharing member 20 and the core wire 1311 are improved. Of course, the length of the insulating member 30 in the axial direction X of the first wire 1310 can also be equal to the length of the current sharing member 20 in the axial direction X of the first wire 1310.

[0046] In some embodiments, the first wire row 131 is provided with at least one. The current sharing member 20 is provided with at least one. The plurality of first wires 1310 of at least one first wire row 131 are connected in parallel through the corresponding current sharing member 20. Thus, the plurality of first wires 1310 with the same signal transmission function can achieve current uniformity through the current sharing member 20.

[0047] Exemplarily, in this embodiment, the power cable 100 is configured as a graphics card power supply line. The first wire row 131 and the current sharing member 20 are each provided with two, and the two current sharing members 20 are insulated from each other. The plurality of first wires 1310 of each first wire row 131 are connected in parallel through the corresponding current sharing member 20. Thus, the output signals of the plurality of first wires 1310 of the two first wire rows 131 do not interfere with each other, and the accuracy of signal transmission of the power cable 100 is improved.

[0048] Specifically, the two first row wires 131 include a first sub-row wire 132 and a second sub-row wire 134. The first sub-row wire 132 and the second sub-row wire 134 are independently arranged. The first sub-row wire 132 is used to transmit a first signal, and the second sub-row wire 134 is used to transmit a second signal. Each of the first sub-row wire 132 and the second sub-row wire 134 includes six first conductors 1310. Of course, in some embodiments, each of the first sub-row wire 132 and the second sub-row wire 134 may also include three, four, or more than six first conductors 1310, and the embodiments of the present application do not make specific limitations.

[0049] Define the surface parallel to the extending direction of the first row wire 131 as the symmetry plane S, and a plurality of flow equalizing members 20 are arranged in mirror symmetry with respect to the symmetry plane S. Thus, it is convenient for the alignment and assembly of the insulating member 30 and the flow equalizing member 20, and improves the uniformity of the mechanical properties of the overall structure.

[0050] The number of the first row wires 131 and the number of the flow equalizing members 20 may be the same, and each first row wire 131 is connected to the corresponding flow equalizing member 20. In some embodiments, the number of the first row wires 131 and the number of the flow equalizing members 20 may also be different. It should be noted that the number of the first row wires 131 and the number of the flow equalizing members 20 are only for illustration and do not constitute specific limitations. The number of the first row wires 131 and the number of the flow equalizing members 20 need to be designed according to the actual product requirements. For example, in some embodiments, the first row wire 131 may also be provided as one, three, or more than three, and the embodiments of the present application do not make specific limitations.

[0051] In some embodiments, the functional module 2 further includes a protective housing 40. The insulating member 30 is disposed close to the wiring plug 11 and is spaced apart from the wiring plug 11. The protective housing 40 is wrapped around the outside of the insulating member 30. The protective housing 40 is clamped to the end of the wiring plug 11 close to the power supply plug 12, and the connecting wire harness 13 passes through the end of the protective housing 40 away from the wiring plug 11. Thus, on the one hand, the setting of the protective housing 40 can prevent the connecting wire harness 13 from being rigidly bent at the end close to the wiring plug 11, improving the reliability and stability of the connection between the power cable 100 and the functional component; on the other hand, the protective housing 40 resists and absorbs external impact forces, improving the environmental resistance of the power cable 100, extending the service life of the power cable 100, and reducing the maintenance cost.

[0052] Please refer to Figure 1 、 Figure 2 and Figure 4 , Figure 4 is Figure 1Exploded view of the second perspective of the power cable 100 in []. In some embodiments, the functional module 2 further includes a control circuit board 50, a temperature detector 60, and at least one display structure 70. The control circuit board 50 is electrically connected to the temperature detector 60, all the display structures 70, and the current-sharing component 20. The temperature detector 60 is used to detect the temperature of the current-sharing component 20. The control circuit board 50 is used to control at least one display structure 70 to display the current temperature information of the current-sharing component 20 detected by the temperature detector 60. Thus, the temperature detector 60 can detect the temperature of the connection cable bundle 13 in real time and display the current temperature information through the display structure 70, facilitating the user to observe the temperature of the power cable 100 in real time and intervene in a timely manner when the temperature of the power cable 100 is abnormal, avoiding the problem that the power cable 100 is burned out due to out-of-control temperature and damaging the graphics card, and improving the use safety of the graphics card and the power cable 100. It should be noted that since the current-sharing component 20 is connected in series with the multiple core wires 1311 corresponding to the multiple first wires 1310, the temperature of the current-sharing component 20 is close to the temperature of the core wires 1311, thereby indirectly measuring the temperature of the first cable 131. The design is reasonable and the structure is compact.

[0053] Exemplarily, in this embodiment, the current temperature information includes but is not limited to at least one of a temperature value and a temperature level. The temperature level is characterized by but is not limited to at least one of a light color, a light brightness, a light flashing mode, and a text description. The display structure 70 is configured as a display screen or a display lamp. Exemplarily, in this embodiment, two display structures 70 are provided. One of the display structures 70 is configured as a display screen and is used to display the temperature value, and the other display structure 70 is configured as a display lamp and is used to display the temperature level. The two display structures 70 can work simultaneously or non-simultaneously. For example, the two display structures 70 can work alternately in a cycle or be custom-selected to work. The embodiments of the present application do not make specific limitations.

[0054] Of course, in some embodiments, both of the two display structures 70 can be configured as a display screen or a display lamp. The functional module 2 can also include one display structure 70, and the display structure 70 can separately display the temperature value or the temperature level; or, it can display the temperature value and the temperature level simultaneously.

[0055] In some embodiments, the display structure 70 can also be used to display logo information. The logo information can be but is not limited to at least one of a product model, a product name, a manufacturer, etc.

[0056] Understandably, when the display structure 70 is configured to display a light, the display light can emit light of at least one of different colors, brightnesses, and flashing modes to characterize that the current-sharing member 20 corresponds to different temperature levels, so as to facilitate the user to quickly and accurately understand the temperature of the power cable 100. For example, the temperature of the current-sharing member 20 is 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, and the higher the level, the higher the temperature. When the indicator light emits red light, it indicates that the temperature of the current-sharing member 20 reaches the highest level (i.e., the high-temperature range); when the indicator light emits yellow light, it indicates that the temperature of the current-sharing member 20 reaches the medium level (i.e., the medium-temperature range); when the indicator light emits green light, it indicates that the temperature of the current-sharing member 20 reaches the lowest level (i.e., the low-temperature range). It should be noted that the correspondence between the temperature level and at least one of the light color, light brightness, and light flashing mode can be user-defined or the factory default setting of the power cable 100, and the embodiments of the present application do not make specific limitations.

[0057] The display screen can be configured as a touch display screen or a non-touch display screen. Thus, the display screen is used for displaying data and user interaction, thereby improving the user experience and the usability of the display structure 70. The display screen can also display patterns of at least one of different colors, brightnesses, and flashing modes to characterize that the current-sharing member 20 corresponds to different temperature levels, so as to facilitate the user to quickly and accurately understand the temperature of the power cable 100.

[0058] In some other embodiments, the functional module 2 can further include a speaker. The current temperature information can also be fed back to the user through sound or voice. The functional module 2 includes at least one or a combination of a speaker, a display screen, and a display light. Thus, the feedback form of the current temperature information can be at least one or a combination of sound, light, text description, and voice, thereby improving the recognition degree of the current temperature information corresponding to the current-sharing member 20. It is easier for the user to distinguish the temperature situation of the current-sharing member 20 according to the current temperature information to take corresponding treatment measures, thereby improving the accuracy and efficiency of handling the temperature abnormality of the current-sharing member 20.

[0059] The protective housing 40 is provided with a storage cavity 401 and a through hole 402 communicating with the storage cavity 401. A part of the connection cable bundle 13 is stored in the storage cavity 401, and one end of the connection cable bundle 13 far from the connection plug 11 passes through the through hole 402. The control circuit board 50 and the temperature detector 60 are arranged in the storage cavity 401. The control circuit board 50 and the connection cable bundle 13 are arranged in the thickness direction Z of the power cable 100 and are electrically connected to the first cable 131 through the current sharing member 20. Thus, the functional module 2 is arranged along the circumferential direction of the connection cable bundle 13, avoiding interference of the functional module 2 with the connection between the connection plug 11 and the graphics card, and improving the compactness of the overall structure of the power cable 100. Specifically, the plane where the control circuit board 50 is located is in the extending direction of the first wire 1310, thus avoiding interference of the control circuit board 50, the temperature detector 60 arranged on the control circuit board 50, and at least one display structure 70 with the mating connection between the connection plug 11 and the graphics card, and the structure is compact.

[0060] The temperature detector 60 and at least one display structure 70 are arranged on the circuit board. The control circuit board 50 is arranged between the insulating member 30 and the protective housing 40. Thus, it is convenient for operations such as assembly, maintenance, and replacement of the control circuit board 50, the temperature detector 60, and at least one display structure 70.

[0061] Exemplarily, in this embodiment, all the display structures 70 are located on the side of the control circuit board 50 facing away from the connection cable bundle 13 and are electrically connected to the control circuit board 50. Thus, it is convenient for the wiring of the display structure 70 of the functional module 2 to the control circuit board 50, optimizing the structural layout. Of course, the display structure 70 can be located on the side of the control circuit board 50 facing away from the connection cable bundle 13; and / or, the display structure 70 can also be located on the peripheral side of the control circuit board 50; and / or, the display structure 70 can also be located on the side of the control circuit board 50 facing the connection cable bundle 13. It should be noted that the number and setting position of the display structures 70 can be set according to actual situations, and the embodiments of the present application do not make specific limitations.

[0062] The protective housing 40 is provided with at least one mounting hole 403 communicating with the storage cavity 401. All the display structures 70 are mounted in the same mounting hole 403; or, all the display structures 70 are mounted in different mounting holes 403. Exemplarily, in this embodiment, the protective housing 40 is provided with two mounting holes 403. Both of the two mounting holes 403 communicate with the storage cavity 401 and are respectively mounted with two display structures 70.

[0063] Specifically, the protective housing 40 includes a first housing 41 and a second housing 42. The first housing 41 and the second housing 42 are fixedly engaged with each other and enclose to form a storage cavity 401 and a through hole 402 communicating with the storage cavity 401. The connection cable bundle 13 passes through the through hole 402. An installation hole 403 communicating with the storage cavity 401 is provided on a side of the first housing 41 facing away from the second housing 42, and the display structure 70 is installed at the installation hole 403. The number of the installation holes 403 can be set according to the number and setting manner of the display structures 70, and the embodiments of the present application do not make specific limitations.

[0064] In this embodiment, the protective housing 40 further includes a locking member 43. The first housing 41 and the second housing 42 are detachably connected by the locking member 43, so as to facilitate operations such as assembly, maintenance, and replacement of each part of the power cable 100. Specifically, a plurality of first lugs 411 are provided on the side wall of the first housing 41, and a plurality of second lugs 421 are provided on the side wall of the second housing 42. A connection hole 4211 is provided on one of the first lugs 411 and the second lugs 421, and a fixing hole 4111 aligned with the connection hole 4211 is provided on the other of the first lugs 411 and the second lugs 421. The locking member 43 passes through the connection hole 4211 and is locked in the fixing hole 4111. The provision of the first lugs 411 and the second lugs 421 can enhance the reliability and stability of the connection between the locking member 43 and the first housing 41 and the second housing 42, save the materials of the protective housing, and reduce the production cost.

[0065] In some embodiments, the first housing 41 and the second housing 42 can also be fixedly connected together by detachable structures such as a magnetic adsorption structure and a buckle; or, the first housing 41 and the second housing 42 can also be fixedly connected together in a non-detachable manner by means such as gluing, welding, or injection molding, and the embodiments of the present application do not make specific limitations.

[0066] In some embodiments, the protective housing 40 further includes a decorative plate 44. The decorative plate 44 is located on a side of the first housing 41 facing away from the second housing 42 and is hermetically connected to the first housing 41, and the decorative plate 44 covers the installation hole 403. The decorative plate 44 and the display structure 70 are independently arranged and configured as a transparent structure; or, the decorative plate 44 and the display structure 70 are integrated into an integral structure. Thus, the provision of the cover plate can improve the aesthetic appearance of the power cable 100 and avoid the problem that external pollutants or moisture enter the storage through the installation hole 403 and damage the functional components.

[0067] Exemplarily, in the present embodiment, the decorative plate 44 is configured as a transparent structure, thereby improving the aesthetics of the appearance of the power cable 100 and facilitating the user to view the information output by the display structure 70. Of course, in some embodiments, the decorative plate 44 may also be configured as a non-transparent structure. The decorative plate 44 may also be integrated with the display structure 70 into an integral structure, that is, the decorative plate 44 is integrally configured as a display screen, thereby increasing the display area and further improving the display effect of the power cable 100 and facilitating the user to view.

[0068] In some embodiments, a positioning groove 404 is provided on the side of the first housing 41 facing away from the second housing 42. The decorative plate 44 is disposed in the positioning groove 404. Thereby, the alignment assembly efficiency and assembly yield of the decorative plate 44 and the first housing 41 are improved.

[0069] In some embodiments, the length of the protective housing 40 in the axial direction X of the first wire 1310 is less than or equal to 25 cm. Thereby, the problem that the length of the protective housing 40 is too long to interfere with the alignment and insertion of the connection plug 11 and the graphics card is avoided, and the aesthetics and structural compactness of the appearance of the power cable 100 are improved. Exemplarily, in the present embodiment, the protective housing 40 is configured as an insulating structure. Of course, in some embodiments, the protective housing 40 may also be configured as a non-insulating structure. For example, the protective housing 40 may be configured as a metal structure, thereby improving the structural strength and heat dissipation performance of the protective housing 40. The protective housing 40 may also be provided with a heat dissipation structure for discharging the heat generated by the flow equalizing member 20 to the outside air to improve the stability and reliability of the working performance of the power cable 100.

[0070] In the present embodiment, a conducting hole 302 is provided on the side wall of the insulating member 30. The functional module 2 further includes a conducting member 80. One end of the conducting member 80 is electrically connected to the flow equalizing member 20, and the other end of the conducting member 80 passes through the conducting hole 302 and is electrically connected to the control circuit board 50. Thereby, the setting of the conducting hole 302 can shorten the connection line between the conducting member 80, the flow equalizing member 20 and the control circuit board 50, the wiring is neat, and the reliability and stability of the connection between the control circuit board 50 and the flow equalizing member 20 are improved.

[0071] Specifically, two conducting holes 302 are provided, and the two conducting holes 302 are spaced apart. Two conducting members 80 are also provided, and the two conducting members 80 are respectively inserted through the two conducting holes 302. Thus, the two conducting members 80 are isolated by the two conducting holes 302, so as to prevent the two current-sharing members 20 from interfering with the transmission signals of the two first cable assemblies 131. Specifically, one of the conducting holes 302 is provided in the insulating member 30 and the side wall facing the control circuit board 50, and the other conducting hole 302 is provided in the side wall of the insulating member 30 parallel to the thickness direction Z of the power cable 100. Thereby, the connection lines between the conducting member 80, the current-sharing member 20, and the control circuit board 50 are shortened, the wiring is tidy, and the reliability and stability of the connection between the control circuit board 50 and the current-sharing member 20 are improved.

[0072] It should be noted that the thickness direction Z of the power cable 100 is a direction perpendicular to the extending direction of the connection cable bundle 13. The extending direction of the connection cable bundle 13 is the arranging direction of the connection plug 11 and the power supply plug 12, and is parallel to the inserting direction of the connection plug 11. Exemplarily, in this embodiment, the thickness direction Z of the power cable 100 refers to the arranging direction of the plurality of first cable assemblies 131. In other words, the thickness direction Z is a direction perpendicular to the plane where the first cable assemblies 131 are located.

[0073] The number of the conducting holes 302 may be the same as or different from the number of the conducting members 80. The number and the setting manner of the conducting holes 302 may be set according to the actual situation, and are not specifically limited in the embodiments of the present application. Specifically, when the number of the conducting holes 302 is the same as the number of the conducting members 80 and a plurality of conducting holes 302 are provided, the plurality of conducting members 80 are arranged in one-to-one correspondence with the plurality of conducting holes 302, so as to prevent different current-sharing members 20 from interfering with the transmission signals of the plurality of first cable assemblies 131. In some embodiments, the number of the conducting holes 302 may be less than the number of the conducting members 80. The plurality of conducting members 80 may be inserted through the same conducting hole 302, and the conducting members 80 are provided with insulating coatings, so as to prevent the mutual interference of the conducting members 80 with the transmission signals of the plurality of first cable assemblies 131. Of course, in some embodiments, the insulating member 30 may not be provided with the conducting holes 302. For example, the conducting member 80 may also be connected to the circuit board through the wire passing hole 301.

[0074] In some embodiments, the insulating member 30 is provided with a positioning structure 31, and the control circuit board 50 is provided with a guiding structure 501 that cooperates with the positioning structure 31. Thus, on the one hand, the alignment and assembly of the control circuit board 50 and the insulating member 30 are improved, thereby improving the assembly efficiency and assembly yield between the control circuit board 50 and the insulating member 30; on the other hand, the control circuit board 50 is prevented from displacing in a plane parallel to the axial direction X of the first wire 1310, improving the reliability and stability of the connection between the control circuit board 50 and the current-sharing member 20. One of the positioning structure 31 and the guiding structure 501 is configured as a convex structure, and one of the positioning structure 31 and the guiding structure 501 is configured as a groove structure or a positioning hole that cooperates with the convex structure.

[0075] In some embodiments, the positioning structure 31 is provided with a limiting step 311, and the control circuit board 50 is lapped on the limiting step 311. Thus, on the one hand, the limiting step 311 can lift the control circuit board 50 to avoid the problem of short circuit caused by the contact between the control circuit board 50 and the current-sharing plate; on the other hand, the setting of the limiting step 311 can form a heat dissipation channel between the control circuit board 50 and the insulating member 30, so that the problems generated by the current-sharing plate can be discharged from the cover heat dissipation channel, thereby improving the service life and safety of the power cable 100.

[0076] The temperature detector 60 is disposed close to the current-sharing member 20. Exemplarily, in this embodiment, the temperature detector 60 is disposed on the side of the control circuit board 50 facing the current-sharing member 20 and close to the conducting hole 302, thereby improving the accuracy of the temperature detector 60 in detecting the temperature of the current-sharing member 20. The setting of the limiting step 311 can also provide sufficient space for the assembly of the temperature detector 60. Of course, in some embodiments, the temperature detector 60 can also be disposed on the side of the control circuit board 50 facing away from the insulating member 30, and the embodiments of the present application do not make specific limitations.

[0077] In some embodiments, the first housing 41 is provided with a first limiting groove 406, and the second housing 42 is provided with a second limiting groove 407 opposite to the first limiting groove 406. In the thickness direction Z of the power cable 100, one end of the insulating member 30 is limited in the first limiting groove 406, and the other end of the insulating member 30 is limited in the second limiting groove 407. Thus, when the first housing 41 and the second housing 42 are fixedly combined, the insulating member 30 is clamped between the first housing 41 and the second housing 42 in the thickness direction Z of the power cable 100, and the setting of the first limiting groove 406 and the second limiting groove 407 can limit the insulating member 30 from moving in a plane parallel to the extending direction of the first row of wires 131, thereby improving the precise assembly of each structure of the power cable 100 and preventing the installation positions of each structure from shifting, and improving the safety and reliability of the use of the power cable 100.

[0078] Please refer to Figure 2 and Figure 5 , Figure 5 which Figure 1 is a side view of a partial structure of the power cable 100 in . Exemplarily, in this embodiment, the wiring plug 11 includes a plug body 111 and a wiring terminal 112 disposed on the plug body 111. A flange seat 113 is provided on one side of the plug body 111 close to the insulating member 30. The first housing 41 and the second housing 42 enclose a card slot 405 at the end close to the wiring plug 11. The card slot 405 is fixedly engaged with the flange seat 113. Thus, on the one hand, no additional locking structure is required for the connection between the wiring plug 11, the first housing 41, and the second housing 42, the structure is simple and compact, and the assembly efficiency is improved; on the other hand, it can prevent the connection wire bundle 13 of the power cable 100 from being bent and bundled near the wiring plug 11, avoiding the problem that the elastic forces of the respective wiring terminals 112 corresponding to the wiring plug 11 are likely to be inconsistent under long-term stress, improving the reliability and stability of the connection between each wiring terminal 112 and the functional component, and improving the current uniformity of each wiring terminal 112; on the further hand, it avoids the problem that the core wire 1311 breaks under the action of external force at the edge of the notch 1313, improves the overall structural strength of the power cable 100, improves the insulation performance of the power cable 100, and improves the reliability and stability of the connection between the current sharing member 20 and the core wire 1311.

[0079] Of course, in some embodiments, the wiring plug 11, the first housing 41, and the second housing 42 may also be locked and fixed through an additional locking structure, and the embodiments of the present application do not make specific limitations.

[0080] In some embodiments, the connection wire bundle 13 further includes a second wiring 135. The second wiring 135 includes a plurality of second wires 1351. The second wiring 135 is disposed between the insulating member 30 and the protective housing 40. It can be understood that since the plurality of second wires 1351 of the second wiring 135 are used to transmit different data signals, it is not necessary to perform current sharing setting on the plurality of second wires 1351 of the second wiring 135. Thus, by disposing the second wiring 135 between the insulating member 30 and the protective housing 40, the protective housing 40 can provide anti-bending protection for the end of the second wiring 135 close to the wiring plug 11, improving the reliability and stability of the connection between the power cable 100 and the graphics card.

[0081] In some embodiments, the second cable row 135 and at least one first cable row 131 are arranged in the thickness direction Z of the power cable 100. The second housing 42 is further provided with a receiving groove 408 communicating with the second limiting groove. The depth of the receiving groove 408 is greater than that of the second limiting groove, and the second cable row 135 is received in the receiving groove 408. Thus, the groove side wall of the receiving groove 408 and the groove side wall of the second limiting groove form a stepped surface, and the receiving groove 408 sinks relative to the second limiting groove, thereby simultaneously realizing the alignment and assembly of the insulating member 30 and the second cable row 135, avoiding the displacement of the insulating member 30 relative to the protective housing 40, improving the assembly efficiency and the assembly yield rate, and avoiding the problem that the insulating member 30 causes excessive extrusion to the second cable row 135 and damages the second cable row 135 when the first housing 41 and the second housing 42 are fastened and fixed.

[0082] Certainly, in some embodiments, the insulating member 30 may also be coated on the outer side of the second cable row 135 by an injection molding process; alternatively, the insulating member 30 is provided with a wire passing hole 301 for the second wire 1351 of the second cable row 135 to pass through; alternatively, the second cable row 135 is arranged outside the receiving cavity 401 of the protective housing, and the embodiments of the present application do not make specific limitations.

[0083] The embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A power cable, characterized in that, Comprising: A cable body, the cable body includes a connection plug, a power supply plug and a connection wire harness. The connection plug is used to connect with a functional component, the power supply plug is used to connect with a power supply interface, the connection wire harness is connected between the connection plug and the power supply plug, and includes a first cable, and the first cable includes a plurality of first wires; A functional module, including: A current sharing component, the plurality of first wires of the first cable are connected in parallel through the current sharing component; An insulating component, the insulating component covers the outside of the current sharing component.

2. The power cable according to claim 1, characterized in that, Each first wire includes a core wire and an insulating sheath, the insulating sheath covers the outside of the core wire, and the insulating sheath of each first wire is provided with a notch exposing the core wire at the end close to the connection plug. The current sharing component is arranged at the notch and connected to the core wire.

3. The power cable according to claim 2, wherein, The notch is arranged in a circle around the circumferential direction of the first wire. The current sharing component includes a plurality of first connection parts and at least one second connection part. The second connection part is connected between two adjacent first connection parts. The first connection part is configured as a hollow cylindrical structure and sleeved on the core wire exposed at the notch. The second connection part is configured as an arched structure or a planar structure.

4. The power cable according to claim 1, wherein The power cable is configured as a graphics card power supply line, a motherboard power supply line, a central processing unit power supply line or a SATA interface power supply line. The first cables are provided in a plurality, and the current sharing components are provided in at least one. The plurality of first wires of at least one first cable are connected in parallel through the corresponding current sharing component.

5. The power cable according to claim 4, characterized in that, The power cable is configured as the graphics card power supply line. The first cables and the current sharing components are each provided in two. The two current sharing components are insulated from each other. The plurality of first wires of each first cable are connected in parallel through the corresponding current sharing component.

6. The power cable according to claim 1, wherein The functional module further includes a protective housing. The insulating component is arranged close to the connection plug and is spaced from the connection plug. The protective housing covers the outside of the insulating component. The protective housing is clamped to the end of the connection plug close to the power supply plug. The connection wire harness passes through the end of the protective housing away from the connection plug.

7. The power cable according to claim 6, characterized in that, The functional module further includes a control circuit board, a temperature detector and at least one display structure. The control circuit board is electrically connected to the temperature detector, all the display structures and the current sharing component. The temperature detector is used to detect the temperature of the current sharing component. The control circuit board is used to control at least one display structure to display the current temperature information of the current sharing component detected by the temperature detector. Wherein, the current temperature information includes at least one of a temperature value and a temperature level.

8. The power cable according to claim 7, wherein A conducting hole is provided on the side wall of the insulating component. The functional module further includes a conducting component. One end of the conducting component is electrically connected to the current sharing component, and the other end of the conducting component passes through the conducting hole and is electrically connected to the control circuit board.

9. The power cable according to claim 6, wherein, The protective housing includes a first housing and a second housing fixedly engaged with the first housing. The first housing is provided with a first limiting groove, and the second housing is provided with a second limiting groove opposite to the first limiting groove. In the thickness direction of the power cable, one end of the insulating member is defined in the first limiting groove, and the other end of the insulating member is defined in the second limiting groove.

10. The power cable according to claim 6, wherein, The connecting wire harness further includes a second wire row, the second wire row includes a plurality of second wires, and the second wire row is disposed between the insulating member and the protective housing.

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