Current sharing structure of power line and power line with current sharing structure

Abstract

The utility model provides a current sharing structure of a power line, and the current sharing structure comprises a plurality of wires, each wire has the same working voltage, each wire comprises an end part and a wire body part located at the non-end part of the wire, and each wire comprises a wire core and a wire sleeve wrapping the wire core; the flow equalizing piece comprises a conductive flow combining body and an insulating shell wrapping the flow combining body; and the fluid is in conductive connection with the wire body parts of the at least two wires, so that the wire body parts of the wires are in conductive connection. The utility model further provides a power line. The power line comprises a connector and the current sharing structure provided in the first aspect. According to the current-sharing structure, conductive short circuit is carried out on the wires with the same working voltage, so that voltage-sharing and current-sharing effects of power supply transmission and a soaking effect of wires are realized; according to the power line, the current sharing structure is arranged, so that the transmission power supply of the power line is stable, and the voltage abnormal condition caused by poor contact of pins of a joint part is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wires and cables, and in particular to a current-sharing structure for a power line and a power line having the current-sharing structure. Background Art

[0002] In electrical devices like computers, due to industry standards and safety precautions, some cables used for current transmission, such as power cords and extension cords, must consist of multiple conductors arranged in groups to deliver power at the same operating voltage, such as the power cables for graphics cards. Furthermore, the connectors on these cables typically use multi-pin connectors, matching the number of conductors, such as 4-pin, 6-pin, and 8-pin connectors.

[0003] However, during use, due to the small pins of the connector, repeated plugging and unplugging will cause irreversible deformation of the conductive plates in the connector, resulting in a significant floating deviation in the current of each pin in the connector. Further deterioration of this current deviation may lead to poor power supply or even burn out of the device; moreover, the current deviation will cause increased heat generation in the connector and wire group, thereby affecting the product life.

[0004] At present, although some wires use a solution of adding metal sheets inside the connector to make each wire conduct and equalize the current, due to the limited size of the connector, the current equalization effect cannot achieve the desired purpose. In addition, the metal sheet set inside the connector will also cause the heat of the connector to increase.

[0005] Therefore, it has become an urgent problem to be solved by those skilled in the art to study a current sharing structure to achieve current sharing of the power lines without affecting heat dissipation. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a current balancing structure and a power cord having the current balancing structure, so as to achieve voltage and current balancing of the conductors in the power cord and improve heat dissipation.

[0007] In a first aspect, the present application provides a current sharing structure for a power line, the current sharing structure comprising:

[0008] A plurality of wires, each having the same operating voltage, the wires including an end portion and a wire body portion located outside the end portion of the wire, the wires including a wire core and a wire sheath covering the outside of the wire core;

[0009] The current balancing component includes a conductive parallel fluid and an insulating shell covering the parallel fluid;

[0010] The fluid forms a conductive connection with the wire bodies of at least two wires, so that a conductive connection is formed between the wire bodies of the wires.

[0011] The parallel body is used to short-circuit the conducting wires to achieve equal potential and current sharing. The insulating shell is used to protect the parallel body to insulate it from the outside.

[0012] Furthermore, the fluid is conductively connected to the body of each wire, so that a conductive connection is formed between the body of each wire.

[0013] In a second aspect, the present application provides a power cord, which includes a connector and the current sharing structure provided in the first aspect, and the end of the wire is conductively connected to the connector.

[0014] In an optional implementation, the power line includes a load connector, a power supply connector, and a wire group connected between the load connector and the power supply connector, the wire group consisting of several conductors with the same operating voltage; the wire group is provided with a current balancing element near the load connector and / or the power supply connector.

[0015] In an optional implementation, the wire group includes a first wire group and a second wire group with different operating voltages, the first wire group is composed of several wires with a first operating voltage, and the second wire group is composed of several wires with a second operating voltage; the first wire group is provided with a current balancing component near the load connector and / or the power supply connector, and / or the second wire group is provided with a current balancing component near the load connector and / or the power supply connector.

[0016] According to the technical solutions provided by the aforementioned implementations, the technical solutions provided by this application have at least the following beneficial effects:

[0017] (1) The current-sharing structure of the present application achieves voltage and current balancing during power transmission by short-circuiting conductors with the same operating voltage. The structure is simple and complies with industry standards and usage specifications.

[0018] (2) The current-sharing structure of the present application connects the wires to the parallel fluid. Through the heat conduction between the parallel fluid and the wires, the heat of the connected wires can be evenly conducted to achieve a heat-sharing effect, thus avoiding the problem of individual wires being overheated and burned.

[0019] (3) The current sharing structure of this application can adjust the position and number of connected wires according to actual needs, and has high flexibility.

[0020] (4) The power cord of the present application is provided with a current-sharing structure, which can stabilize the power transmission of the power cord and reduce voltage anomalies caused by poor contact of the pins of the connector.

[0021] (5) The power cord of the present application can not only achieve the current equalization effect by setting up a current equalization structure, but also improve the heat dissipation effect of the power cord through the design of a larger area of ​​parallel current components, and avoid overheating and burning of the connectors or part of the wires.

[0022] (6) The power cord of the present application is provided with a current-sharing structure near the connector, so that the heat generated by the connector during the conductive operation can be transferred to the current-sharing component for auxiliary heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic diagram of the current sharing structure provided in this application.

[0025] Figure 2 Schematic diagram of the current sharing structure provided in Example 1 of the present application.

[0026] Figure 3 This is a top view of the current sharing structure provided in Example 1 of the present application.

[0027] Figure 4 Schematic diagram of the current sharing structure provided in Example 2 of the present application.

[0028] Figure 5 This is a top view of the flow sharing structure provided in Example 2 of the present application.

[0029] Figure 6 This is a schematic diagram of the current sharing structure provided in Example 3 of the present application.

[0030] Figure 7 This is a top view of the current sharing structure provided in Example 3 of the present application.

[0031] Figure 8 Schematic diagram of the current sharing structure provided in Example 4 of the present application.

[0032] Figure 9 This is a top view of the flow sharing structure provided in Example 4 of the present application.

[0033] Figure 10 Schematic diagram of the power cord provided for this application.

[0034] Figure 11 Schematic diagram of the power cord provided in Example 5 of the present application.

[0035] Figure 12 Schematic diagram of the power cord provided in Example 6 of the present application.

[0036] Description of reference numerals:

[0037] 10. Wire; 11. End; 12. Wire body; 121. Contact window; 122. Contact hole; 13. Wire sleeve; 14. Wire core; 15. Connector;

[0038] 20. Current balancing element; 21. Parallel flow; 211. Welding portion; 212. Pin; 213. Threading hole; 214. Rivet hole; 215. Rivet; 216. Puncture hole; 217. Puncture nail; 22. Insulation shell;

[0039] 30. Connector; 31. Load connector; 32. Power supply connector;

[0040] 40. Line group; 41. First line group; 42. Second line group. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] As used herein, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more.

[0043] In addition, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the structure.

[0044] See also Figures 1 to 9 The present application provides a current-sharing structure for a power line, which is used to improve the voltage and current balancing of power transmitted by a power line composed of multiple wires 10 with the same operating voltage.

[0045] Combine Figure 1 As shown in Figure 1, the current sharing structure includes:

[0046] A plurality of wires 10, each wire 10 having the same operating voltage, each wire 10 including an end 11 and a wire body 12 located outside the end 11 of the wire 10, and the wire 10 including a wire core 14 and a wire sheath 13 covering the outside of the wire core 14;

[0047] The current balancing member 20 includes a conductive parallel body 21 and an insulating shell 22 covering the parallel body 21;

[0048] The parallel fluid 21 forms a conductive connection with the body portions 12 of at least two wires 10 , so that a conductive connection is formed between the body portions 12 of the wires 10 .

[0049] Generally speaking, the power cord or power extension cord for devices such as graphics cards has two groups of wires, each of which is composed of a number of conductors 10, one of which has 12V or other working voltage, and the other is a grounding wire group.

[0050] Among them, through the setting of the parallel fluid 21, the wires 10 with the same working voltage such as 12V can be conductively connected, so that the wires 10 with current deviation due to the difference in contact of the connector pins can be short-circuited, thereby achieving the effect of uniform potential and thus achieving the effect of current balancing.

[0051] Specifically, the parallel fluid 21 can be made of a metal material with good electrical conductivity, such as a copper sheet, a silver sheet, etc.

[0052] The current-sharing structure of the present application connects the wire 10 with the parallel fluid 21. Since the parallel fluid 21 can act as a heat conductor, the heat generated by the wire terminal and the wire 10 when transmitting power can be connected and conducted, so that the temperature of each wire 10 is balanced, thereby achieving a heat-sharing effect and avoiding the problem of burning of the wire terminal or individual wires due to excessive heat. At the same time, the connected wire 10 and the parallel fluid 21 increase the heat dissipation area and can also achieve a better heat dissipation effect.

[0053] In actual use, multiple wires 10 can be conductively connected to the parallel body 21 as needed. The best connection method is to connect all wires 10 with the same operating voltage in parallel, but according to actual needs, the wires 10 corresponding to the pins with larger deviations can also be connected in parallel.

[0054] Combine Figure 1 As shown, in this embodiment, the parallel fluid 21 is conductively connected to the wire body portion 12 of each wire 10 , so that a conductive connection is formed between the wire body portions 12 of each wire 10 .

[0055] According to the teachings of this application, those skilled in the art may use various methods to electrically connect the current balancing element 20 to the wire 10 .

[0056] Combine Figures 2 to 9 , this application provides a connection solution with better effects.

[0057] Combine Figure 2 and Figure 3As shown, in Example 1, the wire sleeve 13 is provided with a contact window 121 that exposes the wire core 14, the bottom of the parallel fluid 21 passes through the contact window 121 and is in contact with the wire core 14 for conduction, and welding parts 211 for fixing the parallel fluid 21 to the wire core 14 are provided at the intersection of the bottom of both sides of the parallel fluid 21 and the wire core 14; the parallel fluid 21, the welding part 211, the contact window 121 and the wire body part 12 corresponding to the parallel fluid 21 are all enclosed inside the insulating shell 22.

[0058] The contact window 121 is provided through the wire sleeve 13 to realize the structural scheme of conductive connection between the parallel body 21 and the wire core 14, which can realize the maximum contact area between the wire core 14 and the parallel body 21 and improve the current transmission effect.

[0059] Combine Figure 4 and Figure 5 As shown, in Example 2, a pin 212 is provided on at least one side of the parallel body 21, and the wire sleeve 13 is provided with a contact hole 122 that exposes the wire core 14. The pin 212 passes through the contact hole 122 and contacts and conducts with the wire core 14. The contact hole 122 is provided with a welding portion 211 for fixing the pin 212 to the wire core 14; the parallel body 21, the pin 212, the welding portion 211, the contact hole 122 and the wire body portion 12 corresponding to the parallel body 21 are all enclosed inside the insulating shell 22.

[0060] In order to achieve a better conductive connection effect, pins 212 are provided on both sides of the fluid 21 , and the wire sleeve 13 is provided with two contact holes 122 corresponding to the pins 212 .

[0061] By providing the pins 212 in the parallel body 21 to connect the wire core 14 , it is only necessary to make a hole in the wire sleeve 13 of the wire 10 , which results in a better insulation effect.

[0062] Combine Figure 6 and Figure 7 As shown, in Example 3, both sides of the parallel fluid 21 are provided with threading holes 213 facing inward laterally, and the parallel fluid 21 is provided with two rivet holes 214 from the top downward, which are respectively connected to the corresponding threading holes 213, and a rivet 215 is provided in the rivet hole 214; the wire body 12 of the wire 10 is cut to form two connecting ends 15, and the end heads of the two connecting ends 15 extend out of the wire core 14; the two connecting ends 15 are inserted into the threading holes 213, and the rivets 215 abut the wire core 14 of the connecting ends 15, and the rivets 215 and the rivet holes 214 form an interference fit to fix them; the parallel fluid 21 and the two connecting ends 15 of the wire 10 are both enclosed inside the insulating shell 22.

[0063] By riveting the wire core 14 , the connection between the parallel body 21 and the wire 10 is made more stable.

[0064] Combine Figure 8 and Figure 9As shown, in Example 4, the parallel body 21 is provided with a puncture hole 216 from the top surface to the bottom surface, and a puncture nail 217 is provided in the puncture hole 216; the bottom of the parallel body 21 is in contact with the wire sleeve 13 of the wire 10, and the puncture nail 217 passes through the wire sleeve 13 and is connected to the wire core 14; the parallel body 21 and the wire body 12 corresponding to the parallel body 21 are both enclosed in the inside of the insulating shell 22.

[0065] The bottom of the spike 217 is a pointed structure, which is convenient for puncturing the wire sheath 13 and the wire core 14 .

[0066] Furthermore, the piercing nail 217 is made of a conductive material, such as a copper needle, etc. The piercing nail 217 is in contact with the puncture hole 216 to achieve conductive connection.

[0067] By puncturing the guide wire 10 , there is no need to pre-set a hole in the guide wire 10 , which facilitates processing and manufacturing.

[0068] Combine Figure 10 As shown, the present application provides a power cord, which includes a connector 30 for connecting to an electrical device or a power supply device, and any of the above-mentioned current sharing structures, wherein the end 11 of the wire 10 is conductively connected to the connector 30.

[0069] Specific, combined Figure 11 As shown, in Example 5, the power cord includes a load connector 31 for connecting to an electrical device, a power supply connector 32 for connecting to a power supply device, and a wire group 40 connected between the load connector 31 and the power supply connector 32. The wire group 40 is composed of a plurality of conductors 10 with the same working voltage; the wire group 40 is provided with a current equalizing component 20 near the load connector 31 and / or the power supply connector 32.

[0070] In practical applications, a current balancing element 20 may be provided near the load connector 31 or near the power connector 32 as needed, or a current balancing element 20 may be provided near both the load connector 31 and the power connector 32 .

[0071] Among them, since the load connector 31 connected to the electrical device generates more heat, arranging the current balancing element 20 close to the load connector 31 can achieve the effect of simultaneously improving current balancing and heat dissipation.

[0072] In the present application, the power line group 40 includes a first group 41 and a second group 42 having different operating voltages. The first group 41 is composed of a plurality of conductors 10 having a first operating voltage, and the second group 42 is composed of a plurality of conductors 10 having a second operating voltage. For example, the first operating voltage is 12V, and the second operating voltage is grounded 0V.

[0073] Among them, as needed, the current balancing component 20 can be set only in the first wire group 41. Specifically, the current balancing component 20 can be set near the load connector 31 of the first wire group 41, or the current balancing component 20 can be set near the power supply connector 32 of the first wire group 41, or the current balancing component 20 can be set near both the load connector 31 and the power supply connector 32 of the first wire group 41.

[0074] Alternatively, as needed, the current balancing component 20 can be set only in the second wire group 42. Specifically, the current balancing component 20 can be set in the second wire group 42 near the load connector 31, or in the second wire group 42 near the power connector 32, or in the second wire group 42 near both the load connector 31 and the power connector 32.

[0075] Alternatively, as needed, a current balancing component 20 may be provided on both the first wire group 41 and the second wire group 42, and the setting position of the current balancing component 20 may be flexibly adjusted to be close to the load connector 31 or the power supply connector 32, or a current balancing component 20 may be provided on both the load connector 31 and the power supply connector 32 of the first wire group 41 and the second wire group 42.

[0076] Combine Figure 12 As shown, in embodiment 6, the power lines include a first line group 41 and a second line group 42 with different operating voltages, and both the load connector 31 and the power supply connector 32 of the first line group 41 and the second line group 42 are provided with a current balancing element 20 .

[0077] The technical solution provided by this application has at least the following beneficial effects:

[0078] (1) The current-sharing structure of the present application achieves voltage and current balancing during power transmission by short-circuiting conductors with the same operating voltage. The structure is simple and complies with industry standards and usage specifications.

[0079] (2) The current-sharing structure of the present application connects the wires to the parallel fluid. Through the heat conduction between the parallel fluid and the wires, the heat of the connected wires can be evenly conducted to achieve a heat-sharing effect, thus avoiding the problem of individual wires being overheated and burned.

[0080] (3) The current sharing structure of this application can adjust the position and number of connected wires according to actual needs, and has high flexibility.

[0081] (4) The power cord of the present application is provided with a current-sharing structure, which can stabilize the power transmission of the power cord and reduce voltage anomalies caused by poor contact of the pins of the connector.

[0082] (5) The power cord of the present application can not only achieve the current equalization effect by setting up a current equalization structure, but also improve the heat dissipation effect of the power cord through the design of a larger area of ​​parallel current components, and avoid overheating and burning of the connectors or part of the wires.

[0083] (6) The power cord of the present application is provided with a current-sharing structure near the connector, so that the heat generated by the connector during the conductive operation can be transferred to the current-sharing component for auxiliary heat dissipation.

[0084] The above is a detailed introduction to the current sharing structure and power line provided by the implementation method of the present application, and the principles and implementation methods of the present application are explained using specific examples. The above description is only used to help understand the method of the present application and its core mechanism; at the same time, for general technical personnel in this field, based on the ideas of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A current sharing structure for a power line, characterized in that: The current sharing structure includes: A plurality of wires, each of which has the same operating voltage, each of which includes an end portion and a wire body portion located at a non-end portion of the wire, and each of which includes a wire core and a wire sheath covering the outside of the wire core; A current balancing component, comprising a conductive parallel fluid and an insulating shell covering the parallel fluid; The parallel fluid forms a conductive connection with the body parts of at least two of the conductive wires, so that a conductive connection is formed between the body parts of the conductive wires.

2. The current sharing structure of the power line according to claim 1, characterized in that: The parallel fluid is conductively connected to the body portion of each of the conductive wires, so that a conductive connection is formed between the body portions of each of the conductive wires.

3. The current sharing structure of the power line according to claim 1 or 2, characterized in that: The wire sleeve is provided with a contact window that exposes the wire core, the bottom of the parallel fluid passes through the contact window and contacts and conducts with the wire core, and welding parts for fixing the parallel fluid to the wire core are provided at the intersection of the bottom of both sides of the parallel fluid and the wire core; the parallel fluid, the welding parts, the contact window and the wire body part corresponding to the parallel fluid are all covered inside the insulating shell.

4. The current sharing structure of the power line according to claim 1 or 2, characterized in that: The parallel fluid is provided with a pin on at least one side, the wire sleeve is provided with a contact hole exposing the wire core, the pin passes through the contact hole and contacts and conducts with the wire core, and the contact hole is provided with a welding part for fixing the pin to the wire core; the parallel fluid, the pin, the welding part, the contact hole and the wire body corresponding to the parallel fluid are all enclosed inside the insulating shell.

5. The current sharing structure of the power line according to claim 4, characterized in that: The pins are provided on both sides of the parallel body, and the wire sleeve is provided with two contact holes corresponding to the pins.

6. The current sharing structure of the power line according to claim 1, characterized in that: Both sides of the parallel body are provided with threading holes facing inwards, and the parallel body is provided with two rivet holes from the top downwards, which are respectively connected to the corresponding threading holes, and rivets are provided in the rivet holes; The wire body is cut into two connecting ends, and the end portions of the two connecting ends extend out of the wire core; The two connecting ends are inserted into the threading holes, the rivets abut against the wire cores of the connecting ends, and the rivets and the rivet holes form an interference fit for fixation; The parallel fluid and the two connecting ends of the wire are both covered inside the insulating shell.

7. The current sharing structure of the power line according to claim 1, characterized in that: The parallel body is provided with a puncture hole from the top surface to the bottom surface, and a puncture nail is provided in the puncture hole; The bottom of the parallel fluid body is in contact with the wire sleeve of the wire, and the piercing nail passes through the wire sleeve and is pierced into the wire core; The parallel body and the line body portion corresponding to the parallel body are both covered inside the insulating shell.

8. A power cord, characterized in that: The power line includes a connector and the current sharing structure according to any one of claims 1 to 7, and the end of the wire is conductively connected to the connector.

9. The power cord according to claim 8, characterized in that: The power line includes a load connector, a power supply connector, and a wire group connected between the load connector and the power supply connector, wherein the wire group is composed of a plurality of wires having the same operating voltage; The line group is provided with a current balancing element near the load connector and / or the power supply connector.

10. The power cord according to claim 9, characterized in that: The wire group includes a first wire group and a second wire group with different operating voltages, the first wire group consists of a plurality of wires with a first operating voltage, and the second wire group consists of a plurality of wires with a second operating voltage; The first wire group is provided with a current balancing member near the load connector and / or the power supply connector, and / or the second wire group is provided with a current balancing member near the load connector and / or the power supply connector.

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