Power cord and electrical connection device

Abstract

The utility model discloses a kind of power line and electric connection equipment, power line includes first current-carrying wire, second current-carrying wire, third insulating layer, first connecting plate and second connecting plate, first current-carrying wire includes first current-carrying conductor, the first insulating layer of wrapping first current-carrying conductor and the first shielding conductor structure of wrapping first insulating layer;Second current-carrying wire includes second current-carrying conductor, the second insulating layer of wrapping second current-carrying conductor and the second shielding conductor structure of wrapping second insulating layer;Third insulating layer wraps first current-carrying wire and second current-carrying wire;One end of first connecting plate is coupled first shielding conductor structure;One end of second connecting plate is coupled second shielding conductor structure;The other end of first connecting plate and the other end of second connecting plate are coupled first current-carrying conductor and / or second current-carrying conductor in common. So that power line inside can build more flexible detection loop.

Description

Technical Field

[0001] This utility model relates to the field of power cord technology, and in particular to a power cord and electrical connection device. Background Technology

[0002] A leakage circuit breaker (LCDI) is a power connection device for electrical appliances. It detects leakage current in the power supply line via a leakage current detection lead and disconnects the power supply to the appliance when a certain leakage current is detected, ensuring safe operation. In recent years, LCDIs have not only needed to detect leakage current in the power supply line via the leakage current detection lead, but also have higher safety detection requirements, such as detecting whether the leakage current detection lead is open-circuited. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a power cord and electrical connection device that enables a more flexible detection circuit to be constructed inside the power cord.

[0004] In a first aspect, embodiments of the present invention provide a power cord, comprising a first current-carrying wire, a second current-carrying wire, a third insulating layer, a first connecting plate, and a second connecting plate, wherein: The first current-carrying line includes a first current-carrying conductor, a first insulating layer surrounding the first current-carrying conductor, and a first shielding conductor structure surrounding the first insulating layer; The second current-carrying line includes a second current-carrying conductor, a second insulating layer surrounding the second current-carrying conductor, and a second shielding conductor structure surrounding the second insulating layer; The third insulating layer encapsulates the first current-carrying line and the second current-carrying line; One end of the first connecting plate is coupled to the first shielding conductor structure; One end of the second connecting plate is coupled to the second shielding conductor structure; The other end of the first connecting plate and the other end of the second connecting plate are coupled together to the first current-carrying conductor and / or the second current-carrying conductor.

[0005] The power cord provided according to the embodiments of this utility model has at least the following beneficial effects: by setting a first connecting plate as a carrier for electrical connection between the first current-carrying conductor and / or the second current-carrying conductor and the first shielding conductor structure, and setting a second connecting plate as a carrier for electrical connection between the first current-carrying conductor and / or the second current-carrying conductor and the second shielding conductor structure, different combinations of components can be set on the first connecting plate and the second connecting plate to construct different types of current paths, so that a more flexible detection circuit can be constructed inside the power cord.

[0006] According to some embodiments of the present invention, the length difference between the first shielding conductor structure and the second shielding conductor structure is greater than or equal to the length of the first connecting plate; or the length difference between the first shielding conductor structure and the second shielding conductor structure is greater than or equal to the length of the second connecting plate.

[0007] According to some embodiments of the present invention, the power cord provided by the first connecting plate is provided with a first crimp terminal for fastening onto the first current-carrying conductor and / or the second current-carrying conductor; the second connecting plate is provided with a second crimp terminal for fastening onto the first current-carrying conductor and / or the second current-carrying conductor.

[0008] According to some embodiments of the present invention, the first crimp terminal and the second crimp terminal are offset along the length direction of the power cord.

[0009] The power cord provided according to some embodiments of the present invention further includes a first insulating sheath, which simultaneously wraps the first connecting plate and the portion of the first current-carrying line adjacent to the first connecting plate.

[0010] The power cord provided according to some embodiments of the present invention further includes a fifth insulating sheath, which simultaneously wraps the second connecting plate and the portion of the first current-carrying line adjacent to the second connecting plate.

[0011] According to some embodiments of the present invention, the power cord provided has the following structure: the first shielding conductor structure is a first shielding mesh or a first current-draining conductor line woven from multiple conductors, with a portion of the first shielding mesh leading out to form a first shielding transmission conductor and connected to the first connecting plate; or the first current-draining conductor line is connected to the first connecting plate; the second shielding conductor structure is a second shielding mesh or a second current-draining conductor line woven from multiple conductors, with a portion of the second shielding mesh leading out to form a second shielding transmission conductor and connected to the second connecting plate; or the second current-draining conductor line is connected to the second connecting plate.

[0012] The power cord provided according to some embodiments of the present invention further includes a fixing adhesive, which is disposed on the portion of the first current-carrying line adjacent to the first connecting plate and / or the portion of the first current-carrying line adjacent to the second connecting plate.

[0013] According to some embodiments of the present invention, the power cord is provided in which the fixing adhesive simultaneously wraps the first connecting plate, the second connecting plate, the first current-carrying wire, and the second current-carrying wire.

[0014] The power cord provided according to some embodiments of the present invention further includes a fourth insulating sheath, which is wrapped around the outside of the fixing adhesive.

[0015] According to some embodiments of the present invention, the power cord provided has the first connecting plate and the second connecting plate disposed near the output end of the power cord.

[0016] According to some embodiments of the present invention, the first shielding conductor structure is connected to the wiring pins or pads on the first connecting board by welding; the second shielding conductor structure is connected to the wiring pins or pads on the second connecting board by welding.

[0017] According to some embodiments of the present invention, the power cord is provided in which the first crimp terminal is welded and fixed to the first connecting plate; and the second crimp terminal is welded and fixed to the second connecting plate.

[0018] According to some embodiments of the present invention, the power cord provided has a first crimp terminal and a second crimp terminal penetrating the first insulating layer and coupling to the first current-carrying conductor; the first insulating layer is provided with a circumferential opening corresponding to the first crimp terminal and the second crimp terminal.

[0019] According to some embodiments of the present invention, the power cord provided has a first crimp terminal and a second crimp terminal penetrating the second insulating layer and coupling to the second current-carrying conductor; the second insulating layer is provided with a circumferential opening corresponding to the first crimp terminal and the second crimp terminal.

[0020] According to some embodiments of the present invention, the power cord provided includes at least one of a resistor, a diode, and a capacitor on the first or second connecting plate.

[0021] Secondly, embodiments of the present invention provide an electrical connection device, including the power cord described in the first aspect embodiment above.

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a cross-sectional view of the power cord near the output end provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the power cord near the output end provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the power cord near the output end from another angle, provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of one case of the components included in the current path on the first or second connecting plate provided in the embodiment of this utility model; Figure 5 This is a schematic diagram of a second case of components included in the current path on the first or second connecting plate provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the components included in the current path on the first or second connecting plate provided in this embodiment of the present utility model; Figure 7 This is a schematic diagram of the components included in the current path on the first or second connecting plate provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of case five of the components included in the current path on the first or second connecting plate provided in the embodiment of this utility model. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of the embodiments of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, while "above," "below," "within," etc. are understood to include the stated number. "At least one" refers to one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or multiple items. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] It should be noted that the terms "setting," "installing," and "connecting" in the embodiments of this utility model should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in the embodiments of this utility model in conjunction with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be a direct connection or an indirect connection through an intermediate medium.

[0028] It should be noted that the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] A leakage circuit breaker (LCDI) is a power connection device for electrical appliances. It detects leakage current in the power supply line via a leakage current detection lead and disconnects the power supply to the appliance when a certain leakage current is detected, ensuring safe operation. In recent years, LCDIs have not only needed to detect leakage current in the power supply line via the leakage current detection lead, but also have higher safety detection requirements, such as detecting whether the leakage current detection lead is open-circuited.

[0030] Based on this, the present invention provides a power cord and electrical connection device that enables a more flexible detection circuit to be constructed inside the power cord.

[0031] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0032] Figure 1 This is a cross-sectional view of the power cord near the output end provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the power cord near the output end provided in this embodiment of the utility model; Figure 3 This is a structural schematic diagram of the power cord near the output end, provided in an embodiment of this utility model, from another angle. (Refer to...) Figures 1 to 3 A first aspect of this utility model provides a power cord, comprising a first current-carrying wire 100, a second current-carrying wire 200, a third insulating layer 300, a first connecting plate 400, and a second connecting plate 1000, wherein: The first current-carrying line 100 includes a first current-carrying conductor 110, a first insulating layer 120 wrapping the first current-carrying conductor 110, and a first shielding conductor structure 130 wrapping the first insulating layer 120. The second current-carrying line 200 includes a second current-carrying conductor 210, a second insulating layer 220 that wraps the second current-carrying conductor 210, and a second shielding conductor structure 230 that wraps the second insulating layer 220. The third insulating layer 300 wraps around the first current-carrying line 100 and the second current-carrying line 200.

[0033] In some embodiments, the first shielding conductor structure 130 and the second shielding conductor structure 230 are separated from each other within the third insulating layer 300 to insulate each other. Specifically, the mutual insulation between the first shielding conductor structure 130 and the second shielding conductor structure 230 can be achieved in the following ways: Method 1: The first current-carrying line 100 further includes a fourth insulating layer enclosing the first shielding conductor structure 130; Method 2: The second current-carrying line 200 further includes a fifth insulating layer enclosing the second shielding conductor structure 230; Method 3: The first current-carrying line 100 further includes a fourth insulating layer enclosing the first shielding conductor structure 130, and the second current-carrying line 200 further includes a fifth insulating layer enclosing the second shielding conductor structure 230; Method 4: The third insulating layer 300 is filled with other insulating materials to separate the first shielding conductor structure 130 and the second shielding conductor structure 230, thereby achieving mutual insulation.

[0034] It is understandable that, such as Figure 1 As shown, the power cord may also include a third current-carrying wire 500 located inside the third insulation layer 300. When the power cord supplies power to electrical equipment using two-phase AC power, it can be one of the following two cases: the first current-carrying wire 100 is the live wire L, and the second current-carrying wire 200 is the neutral wire N; or the first current-carrying wire 100 is the neutral wire N, and the second current-carrying wire 200 is the live wire L. When the power cord supplies power to electrical equipment using three-phase AC power, it can be one of the following three cases: the first current-carrying wire 100 is the live wire L1, and the second current-carrying wire 200 is the neutral wire N; or the first current-carrying wire 100 is the neutral wire N, and the second current-carrying wire 200 is the live wire L1; or the first current-carrying wire 100 is the live wire L1, and the second current-carrying wire 200 is the live wire L2. Additionally, the third current-carrying wire 500 can be a ground wire, and the third current-carrying wire 500 may include a third current-carrying conductor and an insulation layer surrounding the third current-carrying conductor.

[0035] In some embodiments, one end of the first connecting plate 400 is coupled to the first shielding conductor structure 130; one end of the second connecting plate 1000 is coupled to the second shielding conductor structure 230; the other ends of the first connecting plate 400 and the other ends of the second connecting plate 1000 are jointly coupled to the first current-carrying conductor 110 and / or the second current-carrying conductor 210. For example, refer to... Figure 2 and Figure 3The other end of the first connecting plate 400 and the other end of the second connecting plate 1000 are both coupled to the first current-carrying conductor 110 in the first current-carrying line 100. It can be understood that the other end of the first connecting plate 400 and the other end of the second connecting plate 1000 can be both coupled to the second current-carrying conductor 210 in the second current-carrying line 200; or, the other end of the first connecting plate 400 and the other end of the second connecting plate 1000 can be both coupled to the first current-carrying conductor 110 in the first current-carrying line 100 and coupled to the second current-carrying conductor 210 in the second current-carrying line 200.

[0036] In some embodiments, a first connecting plate 400 and a second connecting plate 1000 are disposed near the output end of the power line. The first connecting plate 400 is provided with a first crimp terminal 410 for engaging with the first current-carrying conductor 110 and / or for engaging with the second current-carrying conductor 210; the second connecting plate 1000 is provided with a second crimp terminal 1010 for engaging with the first current-carrying conductor 110 and / or for engaging with the second current-carrying conductor 210. Specifically, the first crimp terminal 410 and the second crimp terminal 1010 penetrate the first insulating layer 120 to couple to the first current-carrying conductor 110; or, the first crimp terminal 410 and the second crimp terminal 1010 penetrate the second insulating layer 220 to couple to the second current-carrying conductor 210.

[0037] It should be noted that, in addition to the first crimp terminal 410 being fastened to the first current-carrying conductor 110 to achieve electrical connection, the first connecting plate 400 can also achieve electrical connection in other ways, such as using a wire to achieve electrical connection with the first current-carrying conductor 110; similarly, in addition to the second crimp terminal 1010 being fastened to the first current-carrying conductor 110 to achieve electrical connection, the second connecting plate 1000 can also achieve electrical connection in other ways, such as using a wire to achieve electrical connection with the first current-carrying conductor 110.

[0038] According to the power cord provided in this embodiment of the present invention, a first connecting plate 400 and a second connecting plate 1000 are provided at the output end of the power cord. The first connecting plate 400 is provided with a first crimp terminal 410. The first connecting plate 400 is fastened to the first current-carrying conductor 110 of the first current-carrying line 100 and / or the second current-carrying conductor 210 of the second current-carrying line 200 through the first crimp terminal 410. That is, the electrical connection between the first connecting plate 400 and the first current-carrying conductor 110 and / or the second current-carrying conductor 210 is achieved by crimping the terminals. The electrical connection is very strong and does not require soldering to the first current-carrying conductor 110 or the second current-carrying conductor 210, thus avoiding damage to the current-carrying conductor. Similarly, the second connecting plate 1000 is provided with a second crimp terminal 1010. The second connecting plate 1000 is fastened to the first current-carrying conductor 110 of the first current-carrying line 100 and / or the second current-carrying conductor 200 through the second crimp terminal 1010. On the second current-carrying conductor 210, the electrical connection between the second connecting plate 1000 and the first current-carrying conductor 110 and / or the second current-carrying conductor 210 is achieved by terminal crimping. The electrical connection is very strong, and there is no need to solder on the first current-carrying conductor 110 or the second current-carrying conductor 210, thus avoiding damage to the current-carrying conductor. The first connecting plate 400 serves as the carrier for the electrical connection between the first current-carrying conductor 110 and / or the second current-carrying conductor 210 and the first shielding conductor structure 130, and the second connecting plate 1000 serves as the carrier for the electrical connection between the first current-carrying conductor 110 and / or the second current-carrying conductor 210 and the second shielding conductor structure 230. This can balance the strength of the electrical connection and the reliability of the power line. Different combinations of components can also be set on the first connecting plate 400 and the second connecting plate 1000 to construct different types of current paths, so that a more flexible detection circuit can be constructed inside the power line.

[0039] In some embodiments, the length difference between the first shielding conductor structure 130 and the second shielding conductor structure 230 is greater than or equal to the length of the first connecting plate 400; or the length difference between the first shielding conductor structure 130 and the second shielding conductor structure 230 is greater than or equal to the length of the second connecting plate 1000.

[0040] It is understood that, in this embodiment, the length difference between the first shielding conductor structure 130 and the second shielding conductor structure 230 is large enough to ensure that the first shielding conductor structure 130 can be coupled to any position on the first connecting plate 400, and to ensure that the second shielding conductor structure 230 can be coupled to any position on the second connecting plate 1000.

[0041] Reference Figure 2 and Figure 3In some embodiments of the present invention, the power cord also includes a first insulating sheath 600, which simultaneously wraps the first connecting plate 400 and the portion of the first current-carrying line 100 adjacent to the first connecting plate 400.

[0042] In this embodiment, by using a first insulating sleeve 600 to wrap the first connecting plate 400 and the portion of the first current-carrying line 100 corresponding to the first connecting plate 400, the components on the first connecting plate 400 can be protected, and unnecessary electrical connection points between the first connecting plate 400 and the second current-carrying line 200 can be avoided.

[0043] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the power cord also includes a fifth insulating sheath 1100, which simultaneously wraps the second connecting plate 1000 and the portion of the first current-carrying line 100 adjacent to the second connecting plate 1000.

[0044] In this embodiment, by using a fifth insulating sleeve 1100 to wrap the second connecting plate 1000 and the portion of the first current-carrying line 100 corresponding to the second connecting plate 1000, the components on the second connecting plate 1000 can be protected, and unnecessary electrical connection points between the second connecting plate 1000 and the second current-carrying line 200 can be avoided.

[0045] Reference Figure 3 In some embodiments of the power cord provided by this utility model, the first shielding conductor structure 130 is a first shielding mesh or a first current-draining conductor wire woven from multiple strands of conductors. A portion of the first shielding mesh is led out to form a first shielding transmission conductor and connected to the first connecting plate 400; or the first current-draining conductor wire is connected to the first connecting plate 400. The second shielding conductor structure 230 is a second shielding mesh or a second current-draining conductor wire woven from multiple strands of conductors. A portion of the second shielding mesh is led out to form a second shielding transmission conductor and connected to the second connecting plate 1000; or the second current-draining conductor wire is connected to the second connecting plate 1000. For example, as... Figure 3 As shown, the second shielding conductor structure 230 is a second shielding mesh woven from multiple conductors. The second shielding conductor structure 230 forms a second shielding transmission conductor 231 by leading out several conductors from the second shielding mesh and welding them to the second connecting plate 1000. The power line also includes a third insulating sheath 232 that wraps around the second shielding transmission conductor 231.

[0046] In this embodiment, the first shielding conductor structure 130 and the second shielding conductor structure 230 are made of a shielding mesh woven from multiple strands of conductors, which can effectively wrap the corresponding current-carrying conductors, thereby reliably detecting leakage signals on the corresponding current-carrying conductors. Several strands of conductor are extracted from the multi-strand conductors of the shielding mesh to form a shielded transmission conductor. This shielded transmission conductor is then welded to the corresponding connecting plate, reliably achieving electrical connection between the shielding conductor structure and the corresponding connecting plate. Furthermore, for Figure 3 In the embodiment shown, the power cord is further provided with a third insulating sheath 232 to wrap the second shielded transmission conductor 231, which can prevent unnecessary electrical connection points other than solder points between the second shielded transmission conductor 231 and the first connecting plate 400 or the second connecting plate 1000.

[0047] Reference Figure 3 In some embodiments of the present invention, the power cord also includes a second insulating sheath 700, which wraps around the second insulating layer 220 and the second shielding conductor structure 230 on the second current-carrying wire 200 at a position adjacent to the first connecting plate 400 and the second connecting plate 1000.

[0048] In this embodiment, by using a second insulating sleeve 700 to wrap the portions of the second current-carrying line 200 corresponding to the first connecting plate 400 and the second connecting plate 1000, unnecessary electrical connection points between the first connecting plate 400, the second connecting plate 1000, and the second current-carrying line 200 can be avoided. It is understood that when the second shielded transmission conductor 231 is wrapped with a third insulating sleeve 232, the second insulating sleeve 700 effectively further wraps the third insulating sleeve 232, the second shielded transmission conductor 231 inside the third insulating sleeve 232, the second insulating layer 220, and the second current-carrying conductor 210 inside the second insulating layer 220.

[0049] Reference Figure 2 and Figure 3 In some embodiments of the power cord provided by this utility model, a fixing adhesive 800 is further included. The fixing adhesive 800 is disposed on the portion of the first current-carrying line 100 adjacent to the first connecting plate 400 and / or the portion of the first current-carrying line 100 adjacent to the second connecting plate 1000. In some embodiments, the fixing adhesive 800 simultaneously wraps the first connecting plate 400, the second connecting plate 100, the first current-carrying line 100, and the second current-carrying line 200. Exemplarily, the fixing adhesive 800 simultaneously wraps the first connecting plate 400, the portion of the first current-carrying line 100 adjacent to the first connecting plate 400 and the second connecting plate 1000, and the portion of the second current-carrying line 200 adjacent to the first connecting plate 400 and the second connecting plate 1000. Exemplarily, the fixing adhesive 800 can be a shadowless adhesive, i.e., a UV adhesive.

[0050] In this embodiment, a buffer zone is formed by using adhesive 800 to wrap the first connecting plate 400, the portion of the first current-carrying line 100 corresponding to the first connecting plate 400 and the second connecting plate 1000, and the portion of the second current-carrying line 200 corresponding to the first connecting plate 400 and the second connecting plate 1000 together, which serves to prevent vibration and stress damage.

[0051] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the power cord also includes a fourth insulating sheath 900, which is wrapped around the outside of the fixing adhesive 800.

[0052] In this embodiment, by using a fourth insulating sleeve 900 to further wrap around the outside of the fixing adhesive 800, insulation and isolation protection of the first connecting plate 400 and the second connecting plate 1000 are achieved, forming a rectification module.

[0053] It is understandable that the first insulating sleeve 600, the second insulating sleeve 700, the third insulating sleeve 232, and the fourth insulating sleeve 900 can all be achieved using heat shrink tubing. Heat shrink tubing is a specially designed heat shrink sleeve made of polyolefin material. The outer layer is made of high-quality, soft, cross-linked polyolefin material, and the inner layer is made of hot melt adhesive. The outer layer material has insulating, corrosion-resistant, and wear-resistant properties, while the inner layer has advantages such as low melting point, waterproof sealing, and high adhesion.

[0054] In some embodiments of the present invention, the power cord is provided in which the first shielding conductor structure 130 is connected to the wiring pins or pads on the first connecting plate 400 by welding; and the second shielding conductor structure 230 is connected to the wiring pins or pads on the second connecting plate 1000 by welding.

[0055] In this embodiment, by providing wiring pins or pads on the first connecting plate 400 for the first shielding conductor structure 130 to be soldered, it is beneficial to ensure the strength and reliability of the electrical connection; similarly, by providing wiring pins or pads on the second connecting plate 1000 for the second shielding conductor structure 230 to be soldered, it is beneficial to ensure the strength and reliability of the electrical connection.

[0056] In some embodiments of the present invention, the power cord is provided with a first crimp terminal 410 welded and fixed on a first connecting plate 400; and a second crimp terminal 1010 welded and fixed on a second connecting plate 1000.

[0057] In this embodiment, the first crimp terminal 410 is welded and fixed to the first connecting plate 400, that is, the first crimp terminal 410 and the first connecting plate 400 form an integral unit, thereby simplifying the installation steps of the first connecting plate 400. When the first connecting plate 400 needs to be installed at the output end of the power cord, an opening is provided at the corresponding position of the power cord, and then the first crimp terminal 410 is directly crimped to the opening position. Similarly, the second crimp terminal 1010 is welded and fixed to the second connecting plate 1000, that is, the second crimp terminal 1010 and the second connecting plate 1000 form an integral unit, thereby simplifying the installation steps of the second connecting plate 1000. When the second connecting plate 1000 needs to be installed at the output end of the power cord, an opening is provided at the corresponding position of the power cord, and then the second crimp terminal 1010 is directly crimped to the opening position.

[0058] In some embodiments of the present invention, the power cord provided has multiple first crimp terminals 410.

[0059] In this embodiment, providing multiple first crimp terminals 410 can further improve the stability of the connection between the first connecting plate 400 and the first current-carrying line 100.

[0060] Similarly, multiple second crimp terminals 1010 can be provided to further improve the stability of the connection between the second connecting plate 1000 and the first current-carrying line 100. In some embodiments of the present invention, the second crimp terminal 1010 and the first crimp terminal 410 are offset from each other along the length of the power cord.

[0061] In this embodiment, the second crimp terminal 1010 and the first crimp terminal 410 are arranged in a staggered manner, which allows the first connecting plate 400 and the second connecting plate 1000 to be staggered in the length direction of the power line, thereby avoiding unnecessary short circuits between the current path on the first connecting plate 400 and the current path on the second connecting plate 1000, thus preventing short circuit faults.

[0062] In some embodiments of the power cord provided by this utility model, at least one of a resistor, a diode, and a capacitor is provided on the first connecting plate 400 or the second connecting plate 1000. Exemplarily, the current path on the first connecting plate 400 or the second connecting plate 1000 includes one of the following: Case 1: Includes the first resistor R1; for example, refer to... Figure 4 As shown; Case 2: Includes the first diode D1; for example, refer to... Figure 5 As shown; Case 3: Includes the first capacitor C1; for example, refer to... Figure 6 As shown; Case 4: Includes a second resistor R2 and a second diode D2 connected in series; for example, refer to... Figure 7 As shown; Case 5: Includes a third resistor R3 and a second capacitor C2 connected in parallel; for example, refer to... Figure 8 As shown In this embodiment, by setting components such as resistors, diodes, and capacitors on the first connecting plate 400 or the second connecting plate 1000, different types of current paths can be constructed, so that the electrical signals flowing from the first shielding conductor structure 130 / second shielding conductor structure 230 to the first current-carrying conductor 110 / second current-carrying conductor 210 also have various different types and characteristics, so as to facilitate the construction of a more flexible detection circuit inside the power line.

[0063] In some embodiments of the present invention, the power cord provided has a first crimp terminal 410 and a second crimp terminal 1010 penetrating a first insulating layer 120 and coupling to a first current-carrying conductor 110; the first insulating layer 120 is provided with a circumferential opening corresponding to the first crimp terminal 410 and the second crimp terminal 1010.

[0064] In this embodiment, the circumferential opening on the first insulating layer 120 facilitates the first crimp terminal 410 and the second crimp terminal 1010 to be fastened onto the first current-carrying conductor 110, thereby achieving a reliable electrical connection.

[0065] In some other embodiments of the present invention, the power cord provided has a first crimp terminal 410 and a second crimp terminal 1010 penetrating a second insulating layer 220 to couple to a second current-carrying conductor 210; the second insulating layer 220 is provided with a circumferential opening corresponding to the first crimp terminal 410 and the second crimp terminal 1010.

[0066] In this embodiment, the circumferential opening on the second insulating layer 220 facilitates the first crimp terminal 410 and the second crimp terminal 1010 to be fastened onto the second current-carrying conductor 210, thereby achieving a reliable electrical connection.

[0067] In addition, a second aspect of the present invention provides an electrical connection device, including a power cord as described in the first aspect embodiment above.

[0068] In the electrical connection device provided in this embodiment of the utility model, by setting a first connecting plate 400 and a second connecting plate 1000 on the power line, the first connecting plate 400 serves as the carrier for the electrical connection between the first current-carrying conductor 110 and the first shielding conductor structure 130, and the second connecting plate 1000 serves as the carrier for the electrical connection between the first current-carrying conductor 110 and the second shielding conductor structure 230, both the strength of the electrical connection and the reliability of the power line can be taken into account. Different combinations of components can also be set on the first connecting plate 400 and the second connecting plate 1000 to construct different types of current paths, so that a more flexible detection circuit can be constructed inside the power line.

[0069] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0070] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A power cord, characterized in that, include: The first current-carrying line includes a first current-carrying conductor, a first insulating layer surrounding the first current-carrying conductor, and a first shielding conductor structure surrounding the first insulating layer; The second current-carrying line includes a second current-carrying conductor, a second insulating layer that wraps the second current-carrying conductor, and a second shielding conductor structure that wraps the second insulating layer. A third insulating layer is applied to enclose the first current-carrying line and the second current-carrying line. A first connecting plate, one end of which is coupled to the first shielding conductor structure; The second connecting plate has one end coupled to the second shielding conductor structure; The other end of the first connecting plate and the other end of the second connecting plate are coupled together to the first current-carrying conductor and / or the second current-carrying conductor.

2. The power cord according to claim 1, characterized in that, The length difference between the first shielding conductor structure and the second shielding conductor structure is greater than or equal to the length of the first connecting plate; or the length difference between the first shielding conductor structure and the second shielding conductor structure is greater than or equal to the length of the second connecting plate.

3. The power cord according to claim 1, characterized in that, The first connecting plate is provided with a first crimp terminal for engaging with the first current-carrying conductor and / or the second current-carrying conductor; the second connecting plate is provided with a second crimp terminal for engaging with the first current-carrying conductor and / or the second current-carrying conductor.

4. The power cord according to claim 3, characterized in that, The first crimp terminal and the second crimp terminal are offset along the length of the power line.

5. The power cord according to claim 1, characterized in that, It also includes a first insulating sheath, which simultaneously wraps the first connecting plate and the portion of the first current-carrying line adjacent to the first connecting plate.

6. The power cord according to claim 1, characterized in that, It also includes a fifth insulating sleeve, which simultaneously wraps the second connecting plate and the portion of the first current-carrying line adjacent to the second connecting plate.

7. The power cord according to claim 1, characterized in that, The first shielding conductor structure is a first shielding mesh or a first draining conductor line woven from multiple conductors, with a portion of the first shielding mesh leading out to form a first shielding transmission conductor and connected to the first connecting plate; or the first draining conductor line is connected to the first connecting plate; the second shielding conductor structure is a second shielding mesh or a second draining conductor line woven from multiple conductors, with a portion of the second shielding mesh leading out to form a second shielding transmission conductor and connected to the second connecting plate; or the second draining conductor line is connected to the second connecting plate.

8. The power cord according to claim 1, characterized in that, It also includes a fixing adhesive, which is disposed on the portion of the first current-carrying line adjacent to the first connecting plate and / or the portion of the first current-carrying line adjacent to the second connecting plate.

9. The power cord according to claim 8, characterized in that, The adhesive simultaneously wraps the first connecting plate, the second connecting plate, the first current-carrying wire, and the second current-carrying wire.

10. The power cord according to claim 8 or 9, characterized in that, It also includes a fourth insulating sleeve, which wraps around the outside of the fixing adhesive.

11. The power cord according to claim 1, characterized in that, The first connecting plate and the second connecting plate are positioned near the output end of the power line.

12. The power cord according to claim 1, characterized in that, The first shielding conductor structure is connected to the wiring pins or pads on the first connecting board by welding; the second shielding conductor structure is connected to the wiring pins or pads on the second connecting board by welding.

13. The power cord according to claim 3, characterized in that, The first crimp terminal is welded and fixed to the first connecting plate; the second crimp terminal is welded and fixed to the second connecting plate.

14. The power cord according to claim 3, characterized in that, The first crimp terminal and the second crimp terminal penetrate the first insulating layer and are coupled to the first current-carrying conductor; the first insulating layer is provided with a circumferential opening corresponding to the first crimp terminal and the second crimp terminal.

15. The power cord according to claim 3, characterized in that, The first crimp terminal and the second crimp terminal penetrate the second insulating layer and are coupled to the second current-carrying conductor; the second insulating layer is provided with a circumferential opening corresponding to the first crimp terminal and the second crimp terminal.

16. The power cord according to claim 1, characterized in that, The first connecting plate or the second connecting plate is provided with at least one of a resistor, a diode, and a capacitor.

17. An electrical connection device, characterized in that, Includes the power cord as described in any one of claims 1 to 16.

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