Multi-joint connecting line and manufacturing device of multi-joint connecting line

Abstract

The utility model discloses a multi-connector connecting line and a manufacturing device of the multi-connector connecting line, and belongs to the technical field of signal transmission. The multi-joint connecting line comprises at least two cables arranged side by side, a first connector, at least two second connectors and at least one connecting part, the first end of each cable is connected with the first connector, the second end of each cable is connected with the corresponding second connector, and each cable comprises a wire harness and an outer skin arranged outside the wire harness in a sleeving mode; at least parts of the outer skins of any two adjacent cables are connected through a connecting part. In the scheme, the outer skin is sleeved outside the wire harness of each cable, when the multi-joint connecting wire is manufactured, the second end of each cable can be directly connected with each second connector respectively, peeling, branching and pipe penetrating operations are not needed, the manufacturing mode of the multi-joint connecting wire can be simplified, the manufacturing efficiency of the multi-joint connecting wire can be effectively improved, and the manufacturing cost of the multi-joint connecting wire can be reduced. And manual operation can be reduced, so that the labor cost is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of signal transmission, and particularly relates to a multi-joint connecting wire and a manufacturing device for the multi-joint connecting wire. Background Art

[0002] The multi-joint connecting wire can be used to connect multiple active devices to transmit signals. Exemplarily, in electrical equipment such as computers, televisions, cameras, etc., the connection between various devices and components can be achieved through the multi-joint connecting wire.

[0003] The existing multi-joint connecting wire is formed by dividing a cable into multiple groups of wire harnesses and then connecting them to multiple connectors respectively. When manufacturing this kind of multi-joint connecting wire, it is necessary to first peel off part of the outer skin of the cable to expose part of the multiple signal wires of the cable, divide the exposed signal wires into multiple groups of wire harnesses, then pass hoses through each group of wire harnesses and inject the hoses and the outer skin into an integral structure, and finally connect each group of wire harnesses to the connectors. In this way, the manufacturing method of the multi-joint connecting wire is cumbersome and requires a lot of manual operations, resulting in low manufacturing efficiency and high labor costs of the multi-joint connecting wire. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a multi-joint connecting wire and a manufacturing device for the multi-joint connecting wire, which can solve the problems of low manufacturing efficiency and high labor costs of the multi-joint connecting wire in the related art.

[0005] In a first aspect, the embodiments of this application provide a multi-joint connecting wire, including at least two cables arranged side by side, a first connector, and at least two second connectors. The first ends of the cables are all connected to the first connector, and the second ends of the cables are respectively connected to the second connectors. Each cable includes a wire harness and an outer skin sleeved outside the wire harness;

[0006] The multi-joint connecting wire further includes at least one connecting portion, and at least part of the outer skins of any two adjacent cables are connected through the connecting portion.

[0007] In a second aspect, the embodiments of this application also provide a manufacturing device for the multi-joint connecting wire, which is used to manufacture the above multi-joint connecting wire, including an injection mold. The injection mold is provided with a feed hole and at least two chambers arranged side by side. Each chamber is used to accommodate a wire harness. Two adjacent chambers are communicated with each other, and at least one chamber is communicated with the feed hole;

[0008] The injection mold is further provided with at least one communication chamber, and each communication chamber is respectively arranged between two adjacent chambers and communicated with the chambers.

[0009] In the embodiments of the present application, an outer skin is sleeved outside the wire harness of each cable. When manufacturing a multi-connector connecting wire, the second ends of the cables can be directly connected to the second connectors respectively, without the need for peeling, wire splitting, and pipe threading operations, which can simplify the manufacturing method of the multi-connector connecting wire, effectively improve the manufacturing efficiency of the multi-connector connecting wire, and reduce manual operations, thereby reducing labor costs. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of a multi-connector connecting wire disclosed in the embodiments of the present application;

[0011] Figure 2 is a connection relationship diagram of each cable disclosed in the embodiments of the present application;

[0012] Figure 3 is a connection relationship diagram of each cable and a wire fixing device disclosed in the embodiments of the present application;

[0013] Figure 4 is a first cross-sectional view of a wire fixing device disclosed in the embodiments of the present application (the wire fixing device is provided with two through holes);

[0014] Figure 5 is a rear view of a wire fixing device disclosed in the embodiments of the present application (the wire fixing device is provided with two through holes);

[0015] Figure 6 is a second cross-sectional view of a wire fixing device disclosed in the embodiments of the present application (the wire fixing device is provided with three through holes);

[0016] Figure 7 is a schematic structural diagram of a manufacturing device for a multi-connector connecting wire disclosed in the embodiments of the present application;

[0017] Figure 8 is a cross-sectional view of an injection mold disclosed in the embodiments of the present application;

[0018] Figure 9 is a first schematic structural diagram of a wire harness positioning device disclosed in the embodiments of the present application;

[0019] Figure 10 is a second schematic structural diagram of a wire harness positioning device disclosed in the embodiments of the present application.

[0020] Description of the Reference Numerals:

[0021] 100 - Cable; 110 - Wire Harness; 111 - Core Wire; 120 - Outer Skin; 200 - First Connector;

[0022] 300 - Second Connector; 400 - Connection Portion; 500 - Wire Fixing Device; 510 - Through Hole;

[0023] 511 - First perforation; 512 - Second perforation; 520 - Wire splitting part; 530 - Through hole;

[0024] 600 - Injection mold; 610 - First sub - mold; 620 - Second sub - mold; 630 - Feed hole;

[0025] 640 - Chamber; 641 - First groove; 642 - Second groove; 650 - Connecting chamber;

[0026] 651 - Third groove; 652 - Fourth groove; 700 - Wiring harness positioning device; 710 - Positioning component;

[0027] 711 - First bracket; 7111 - Bottom plate; 7112 - Side plate; 712 - First roller;

[0028] 713 - Second roller; 714 - First rotating shaft; 715 - Second rotating shaft; 716 - Wiring harness positioning groove;

[0029] 800 - Cable positioning device; 810 - Cable positioning groove. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0031] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0032] Next, in conjunction with the accompanying drawings, the multi - connector connecting wire and the manufacturing device of the multi - connector connecting wire provided by the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0033] Refer to Figures 1 - 6A multi-connector connection cable provided in an embodiment of the present application may include at least two cables 100 arranged side by side, a first connector 200 and at least two second connectors 300, the first end of each cable 100 is connected to the first connector 200, and the second end of each cable 100 is connected to each second connector 300, and each cable 100 may include a wiring harness 110 and an outer sheath 120, and the outer sheath 120 is sleeved on the outside of the wiring harness 110 to protect and bind the wiring harness 110.

[0034] Since the wiring harness 110 of each cable 100 is covered with an outer sheath 120, when making a multi-connector connecting cable, the second end of each cable 100 can be directly connected to each second connector 300 respectively, without the need for stripping, branching and pipe threading operations. This can simplify the production method of the multi-connector connecting cable, effectively improve the production efficiency of the multi-connector connecting cable, and reduce manual operations, thereby reducing labor costs.

[0035] The multi-connector cable may further include at least one connecting portion 400, through which at least portions of the outer sheaths 120 of any two adjacent cables 100 may be connected. In this way, the cables 100 may be connected so that all cables 100 are collapsed into a single connecting cable. After all connections are completed, there is no entanglement of the multiple cables 100, and only a single connecting cable remains, making management easier.

[0036] In an optional embodiment of the present application, the multi-connector cable may further include a wire holder 500, which may be provided with at least two through-holes 510. The through-holes 510 may be arranged side by side, and the second end of each cable 100 may pass through each through-hole 510 respectively. In this way, the wire holder 500 may separate portions of each cable 100 and prevent the separated portions of each cable 100 from becoming entangled with each other.

[0037] In addition, a wire splitting portion 520 may be provided between each pair of adjacent through-holes 510. Each wire splitting portion 520 can cut the connecting portion 400 along the length of the cable 100. In this way, the cables 100 can be directly separated using the wire binder 500 without the need for external tools or forcible tearing of the cables 100. This facilitates wire separation while minimizing damage to the outer sheath 120 of the cables 100.

[0038] In other embodiments, the cable holder 500 is not provided on the multi-connector cable.

[0039] Optionally, the cable holder 500 can be slidably connected to each cable 100. Thus, by moving the cable holder 500, the cable holder 500 can be positioned at different locations on the cable 100, thereby adjusting the branch lengths of the multi-connector cable and facilitating the installation of the electrical device and the cable 100. Here, the electrical device can be a computer, a television, a camera, etc.

[0040] Of course, the wire fixer 500 can also be fixedly connected to each cable 100.

[0041] In an alternative embodiment, the wire splitting portion 520 can be an integral structure with the wire fixer 500, and the wire splitting portion 520 can be a sheet-like structure. The connection direction of the wire splitting portion 520 with each cable 100 is perpendicular, and the thickness of the wire splitting portion 520 can be less than the thickness of the connection portion 400. In this way, when the wire splitting portion 520 cuts the connection portion 400, the wire splitting portion 520 will not cut the outer sheath 120 of the cable 100, and the outer sheath 120 of the cable 100 will not be damaged.

[0042] In other embodiments, the thickness of the wire splitting portion 520 can be greater than or equal to the thickness of the connection portion 400.

[0043] Optionally, the wire splitting portion 520 can be a blade, and the cutting edge of the blade can face the first connector 200. In this way, it is more conducive to cutting the connection portion 400. Here, the wire splitting portion 520 and the wire fixer 500 are injection-molded into an integral structure. Specifically, the wire splitting portion 520 can be a metal blade.

[0044] In an alternative embodiment, a through hole 530 can also be provided on the wire fixer 500. The through hole 530 can be located on the side of the perforation 510 away from the second connector 300. Each perforation 510 can communicate with the through hole 530, and the axis of the through hole 530 is parallel to the axis of each perforation 510. In the connection direction of each cable 100, the hole wall of the through hole 530 is in limit fit with each cable 100. In this way, the hole wall of the through hole 530 can play a limiting role on each cable 100 in the connection direction of each cable 100. When the wire splitting portion 520 cuts the connection portion 400, it can prevent each cable 100 from shaking and bending in the connection direction of each cable 100, so as to prevent the wire splitting portion 520 from cutting the outer sheath 120 of the cable 100.

[0045] In other embodiments, the through hole 530 may not be provided on the wire fixer 500. Or, in the connection direction of each cable 100, the hole wall of the through hole 530 is not in limit fit with each cable 100.

[0046] Optionally, at least two of the above-described perforations 510 may include a first perforation 511 and a second perforation 512. The first perforation 511 and the second perforation 512 may be disposed near two sides of the wire fixer 500 respectively. And, on the plane where each cable 100 is located, the projection of the first edge of the through hole 530 may be on the same straight line as the projection of the edge of the first perforation 511 facing away from the second perforation 512, and the projection of the second edge of the through hole 530 and the projection of the edge of the second perforation 512 facing away from the first perforation 511 are on the same straight line. In this way, when each cable 100 extends into each perforation 510, it can be ensured that each cable 100 can accurately extend into each perforation 510. Here, the first edge of the through hole 530 may be the edge of the through hole 530 facing away from the second perforation 512, and the second edge of the through hole 530 may be the edge of the through hole 530 facing away from the first perforation 511.

[0047] In an alternative embodiment, in a direction perpendicular to the plane where each cable 100 is located, the cross-sectional area of the connecting portion 400 may be smaller than the cross-sectional area of the cable 100. In this way, it is beneficial to save injection molding raw materials and facilitate the splitting portion 520 to cut the connecting portion 400.

[0048] Of course, in a direction perpendicular to the plane where each cable 100 is located, the cross-sectional area of the connecting portion 400 may be consistent with the cross-sectional area of the cable 100.

[0049] In an alternative embodiment, each wire harness 110 may include at least two core wires 111. At least a part of the core wires 111 of each group of wire harnesses 110 are twisted and connected, and each core wire 111 may include a conductive wire and an insulating sleeve sleeved outside the conductive wire. In this way, it is beneficial to improve the signal transmission effect of each cable, and each core wire includes an insulating sleeve, which can prevent short circuits between the core wires.

[0050] Of course, each wire harness 110 may include one core wire 111.

[0051] In this embodiment, as Figure 1 shown, the multi-connector connecting wire may include two cables 100. One of the cables 100 may include two core wires 111, which are a power line and a ground line respectively. The other cable 100 may include four core wires 111, and the four core wires 111 are all network signal lines, and the four network signal lines may be twisted in pairs.

[0052] In an alternative embodiment, the structures of the second connectors 300 may all be different, and each second connector 300 may be connected to plugs with different functions respectively. In this way, the multi-connector connecting wire can be applied to different electrical devices. Of course, the structures of the second connectors 300 may also be the same.

[0053] As Figures 7 - 10As shown in the figure, the embodiment of the present application further provides a manufacturing device for a multi-joint connecting wire, which is used to manufacture the multi-joint connecting wire described in any of the above embodiments.

[0054] The manufacturing device for the multi-joint connecting wire may include an injection mold 600. The injection mold 600 may be provided with a feed hole 630 and at least two chambers 640 arranged side by side. Each chamber 640 can be used to accommodate the wire harness 110. Two adjacent chambers 640 are connected and communicated, and at least one chamber 640 is communicated with the feed hole 630. In this way, the raw material liquid can enter each chamber 640 through the feed hole 630 and form an outer skin 120 wrapped around the wire harness 110.

[0055] The injection mold 600 may also be provided with at least one communication cavity 650. Each communication cavity 650 is respectively arranged between two adjacent chambers 640 and communicated with the chambers 640. In this way, the chambers 640 can be communicated through the communication cavity 650, which is convenient for the raw material liquid to flow into each chamber 640 and enables the raw material liquid to form a connecting part 400 in the communication cavity 650 to connect the cables 100 side by side.

[0056] In this embodiment, the raw material liquid may be molten polyethylene or polyvinyl chloride.

[0057] The beneficial effects achieved by the manufacturing device for the multi-joint connecting wire provided by the embodiment of the present application are consistent with those of the multi-joint connecting wire provided by the embodiment of the present application, so they will not be elaborated here.

[0058] In this embodiment, as Figure 8 shown, the injection mold 600 may include a first sub-mold 610 and a second sub-mold 620. The first sub-mold 610 and the second sub-mold 620 are detachably connected. At least two first grooves 641 may be provided on the first sub-mold 610, and at least two second grooves 642 may be provided on the second sub-mold 620. Each first groove 641 corresponds to each second groove 642 one by one, and the first groove 641 and the second groove 642 can be butted to form a chamber 640. At least one third groove 651 may be provided on the first sub-mold 610, and at least one fourth groove 652 may be provided on the second sub-mold 620. Each third groove 651 corresponds to each fourth groove 652 one by one, and the third groove 651 and the fourth groove 652 can be butted to form a communication cavity 650. Here, the feed hole 630 may be provided on the first sub-mold 610.

[0059] In an alternative embodiment, in a direction perpendicular to the plane where each chamber 640 is located, the cross-sectional area of the communication chamber 650 may be smaller than the cross-sectional area of the chamber 640. In this way, it is beneficial to save injection molding raw materials, and the size of the formed connecting portion 400 can be smaller than the size of the cable 100, facilitating the splitting portion 520 to cut the connecting portion 400. Of course, the cross-sectional area of the communication chamber 650 may also be the same as the cross-sectional area of the chamber 640.

[0060] In an alternative embodiment of the present application, the manufacturing apparatus for the multi-joint connecting wire may further include a wire harness positioning device 700. The wire harness positioning device 700 may be disposed upstream of the injection mold 600. The wire harness positioning device 700 may be provided with at least two wire harness positioning grooves 716. Each wire harness positioning groove 716 can be used to accommodate at least one core wire 111, and each wire harness positioning groove 716 may respectively correspond to each chamber 640 of the injection mold 600. In this way, at least two wire harness positioning grooves 716 of the wire harness positioning device 700 can divide multiple core wires 111 into at least two groups of wire harnesses 110, and the wire harness positioning grooves 716 can position the wire harnesses 110, so as to facilitate each group of wire harnesses 110 to enter each chamber 640 of the injection mold 600 respectively.

[0061] In other embodiments, the manufacturing apparatus for the multi-joint connecting wire may not include the wire harness positioning device 700.

[0062] In an alternative embodiment, the wire harness positioning device 700 may include at least two positioning components 710. Each positioning component 710 may be arranged side by side, and each positioning component 710 may include a first bracket 711, a first roller 712, and a second roller 713. The first roller 712 and the second roller 713 may be oppositely arranged. The wire harness positioning groove 716 may be located between the first roller 712 and the second roller 713. The first roller 712 and the second roller 713 may be movably connected to the first bracket 711. The first roller 712 and the second roller 713 may move closer to or away from each other. In this way, the width of the wire harness positioning groove 716 can be adjusted according to the number of core wires 111, so that the manufacturing apparatus for the multi-joint connecting wire can manufacture multi-joint connecting wires with different numbers of core wires 111.

[0063] Here, both the first roller 712 and the second roller 713 can rotate relative to the first bracket 711, and the rotation axes of the first roller 712 and the second roller 713 are both perpendicular to the length direction of the core wire 111. In this way, the first roller 712 and the second roller 713 do not hinder the movement of the core wire 111 in the length direction, and are beneficial to reducing the wear generated during the movement of the core wire 111.

[0064] In this embodiment, the first bracket 711 may include a bottom plate 7111 and two side plates 7112. The two side plates 7112 are respectively connected to two opposite edges of the bottom plate 7111. As Figure 9 shown, the first roller 712 may be connected to one of the side plates 7112 through a first rotating shaft 714, and the second roller 713 may be connected to the other side plate 7112 through a second rotating shaft 715. Here, the first rotating shaft 714 and the second rotating shaft 715 may be slidably connected to the two side plates 7112 respectively. By moving the first rotating shaft 714 and the second rotating shaft 715, the first roller 712 and the second roller 713 can be moved closer to or away from each other. And the first roller 712 may be connected to the first rotating shaft 714 through a bearing, and the second roller 713 may be connected to the second rotating shaft 715 through a bearing. Here, along the direction in which the first roller 712 and the second roller 713 move closer to each other, the part of the first roller 712 close to the second roller 713 may be a conical structure, and the part of the second roller 713 close to the first roller 712 may be a conical structure. And along the direction in which the first roller 712 and the second roller 713 move closer to each other, the cross-sectional area of the part of the first roller 712 close to the second roller 713 gradually decreases, and the cross-sectional area of the part of the second roller 713 close to the first roller 712 gradually decreases. In this way, it is convenient for the first roller 712 and the second roller 713 to support the wire harness 110 and play an auxiliary role in the movement of the wire harness 110.

[0065] Of course, as Figure 10 shown, the first roller 712 may be connected to the bottom plate 7111 through a first rotating shaft 714, and the second roller 713 may be connected to the bottom plate 7111 through a second rotating shaft 715. Here, both the first roller 712 and the second roller 713 may be cylindrical structures.

[0066] In other embodiments, both the first roller 712 and the second roller 713 are fixedly connected to the first bracket 711, and the first roller 712 and the second roller 713 cannot move relative to each other.

[0067] In an alternative embodiment, the manufacturing device for the multi-connector connecting wire may further include a cable positioning device 800. The cable positioning device 800 may be disposed downstream of the injection mold 600. The cable positioning device 800 may be provided with a cable positioning groove 810. The cable positioning groove 810 may be used to accommodate all the cables 100 to position and support all the cables 100, and prevent the cables 100 from being bent or deviating from the moving direction during the movement of all the cables 100.

[0068] Optionally, the cable positioning device 800 may include a second bracket, a third roller, and a fourth roller. The third roller and the fourth roller may be disposed opposite to each other. The cable positioning groove 810 may be located between the third roller and the fourth roller. Both the third roller and the fourth roller may be movably connected to the second bracket. The third roller and the fourth roller may move closer to or away from each other. In this way, the width of the cable positioning groove 810 can be adjusted according to the width of the connecting wire, so that the multi-joint connecting wire manufacturing device can manufacture multi-joint connecting wires with different cables 100.

[0069] Here, both the third roller and the fourth roller may be rotatably connected to the second bracket, and the rotation axes of the third roller and the fourth roller are both perpendicular to the moving direction of the cable 100.

[0070] In this embodiment, the multi-joint connecting wire manufacturing device may further include a wire pulling device. The wire pulling device may be connected to each cable 100, and the wire pulling device may be located downstream of the cable positioning device 800. The wire pulling device may pull the cable 100 to move, so that the core wire 111 can continuously enter the injection mold 600.

[0071] It should be noted that when the cable 100 is not formed, the wire pulling device may be connected to all the core wires 111 to pull the core wires 111 through the injection mold 600 to form the cable 100.

[0072] In the embodiment of the present application, the multi-joint connecting wire manufacturing device may further include a wire cutting device. The wire cutting device may be disposed downstream of the cable positioning device 800 and is used to cut the cable 100 to obtain a cable 100 with a required length.

[0073] The multi-joint connecting wire manufacturing device may further include a wiring device. The wiring device may be disposed downstream of the wire cutting device. The wiring device is used to connect the first ends of each cable 100 to the first connector 200 respectively and connect the second ends of each cable 100 to each second connector 300 respectively.

[0074] Here, the wiring device may include a welding device and a connector outer sleeve injection mold. The welding device may be used to weld the conductive wires of each cable 100 to the connection terminals of the first connector 200 and weld the conductive wires of each cable 100 to the connection terminals of each second connector 300 respectively. The connector outer sleeve injection mold may be used to inject a protective outer sleeve outside the connection terminals of the first connector 200 and inject a protective outer sleeve outside the connection terminals of the second connector 300.

[0075] It should be noted that the protective jacket of the first connector 200 and the outer sheaths 120 of the respective cables 100 can be injection molded into an integral structure by a connector jacket injection mold, and the protective jackets of the respective second connectors 300 and the outer sheaths 120 of the respective cables 100 are injection molded into an integral structure by a connector jacket injection mold. In this way, the core wires 111 can be prevented from being exposed.

[0076] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present application, and all of them fall within the protection scope of the present application.

Claims

1. A multi-joint connecting wire, characterized in that, Comprising at least two side-by-side arranged cables (100), a first connector (200) and at least two second connectors (300), the first ends of each of the cables (100) are connected to the first connector (200), the second ends of each of the cables (100) are respectively connected to each of the second connectors (300), and each of the cables (100) includes a wire harness (110) and an outer skin (120) sleeved outside the wire harness (110); The multi-connector connecting line further includes at least one connecting part (400), and at least part of the outer skins (120) of any two adjacent cables (100) are connected through the connecting part (400).

2. The multi-joint connecting wire according to claim 1, wherein The multi-connector connecting line further includes a wire fixing device (500), at least two through holes (510) are provided on the wire fixing device (500), the through holes (510) are arranged side by side, the second ends of each of the cables (100) respectively pass through each of the through holes (510), and a wire separating part (520) is provided between every two adjacent through holes (510), and each of the wire separating parts (520) can cut each of the connecting parts (400) along the length direction of the cable (100).

3. The multi-joint connecting wire according to claim 2, characterized in that, The wire fixing device (500) is respectively slidably connected to each of the cables (100).

4. The multi-joint connecting wire according to claim 2, characterized in that, The wire separating part (520) and the wire fixing device (500) are of an integral structure, and the wire separating part (520) is of a sheet-like structure, the wire separating part (520) is perpendicular to the connecting direction of each of the cables (100), and the thickness of the wire separating part (520) is less than the thickness of the connecting part (400).

5. The multi-joint connecting wire according to claim 2, characterized in that, A through hole (530) is further provided on the wire fixing device (500), the through hole (530) is located on the side of the through hole (510) away from the second connector (300), each of the through holes (510) is communicated with the through hole (530), and the axis of the through hole (530) is parallel to the axis of each of the through holes (510). In the connecting direction of each of the cables (100), the hole wall of the through hole (530) is in limit fit with each of the cables (100).

6. The multi-connector connecting wire according to claim 1, characterized in that, In the direction perpendicular to the plane where the cable (100) is located, the cross-sectional area of the connecting part (400) is smaller than the cross-sectional area of the cable (100).

7. An apparatus for manufacturing a multi-junction connecting wire, which is used to manufacture the multi-junction connecting wire according to any one of claims 1-6, and is characterized in that Comprising an injection mold (600), the injection mold (600) is provided with a feed hole (630) and at least two side-by-side arranged cavities (640), each of the cavities (640) is used for accommodating a wire harness (110), two adjacent cavities (640) are communicated with each other, and at least one of the cavities (640) is communicated with the feed hole (630); The injection mold (600) is further provided with at least one communicating cavity (650), and each of the communicating cavities (650) is respectively arranged between two adjacent cavities (640) and communicated with the cavities (640).

8. The manufacturing apparatus for the multi-joint connecting wire according to claim 7, wherein, In the direction perpendicular to the plane where each of the cavities (640) is located, the cross-sectional area of the communicating cavity (650) is smaller than the cross-sectional area of the cavity (640).

9. The manufacturing apparatus of the multi-joint connecting wire according to claim 7, characterized in that, Further comprising: The wire harness positioning device (700) is arranged upstream of the injection mold (600). The wire harness positioning device (700) is provided with at least two wire harness positioning grooves (716), and each of the wire harness positioning grooves (716) is used for accommodating at least one core wire (111). Each of the wire harness positioning grooves (716) corresponds to each of the chambers (640) respectively; The cable positioning device (800) is arranged downstream of the injection mold (600). The cable positioning device (800) is provided with a cable positioning groove (810), and the cable positioning groove (810) is used for accommodating all the cables (100). Each of the chambers is opposite to the cable positioning groove (810).

10. The manufacturing apparatus of the multi-joint connecting wire according to claim 9, characterized in that, The wire harness positioning device (700) includes at least two positioning components (710) arranged side by side. Each of the positioning components (710) includes a first bracket (711), a first roller (712) and a second roller (713). The first roller (712) and the second roller (713) are arranged oppositely. The wire harness positioning groove (716) is located between the first roller (712) and the second roller (713). The first roller (712) and the second roller (713) are both movably connected to the first bracket (711). The first roller (712) and the second roller (713) can approach each other or move away from each other. The first roller (712) and the second roller (713) can both rotate relative to the first bracket (711), and the rotation axes of the first roller (712) and the second roller (713) are perpendicular to the length direction of the core wire (111).

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