Welding joint device

Abstract

The welding joint device provided by the present invention belongs to the field of cable technology, and comprises: a center seat and a plurality of groups of half molds arranged around the center seat; a welding cavity for accommodating the cables to be welded is provided between the center seat and the half molds, and a heating device and a temperature detection device are provided on the center seat and / or the half molds; the welding joint device of the present invention forms a plurality of welding cavities by combining the center seat and the plurality of groups of half molds arranged around it, and the welding cavity is used to accommodate a plurality of electric cores of the cables to be welded, so that when welding joints of multi-core cables are made, welding joints of the multi-core cables can be made at the same time, thereby ensuring the consistency of the manufacturing process between the multi-cores and achieving the consistency of the overall outer diameters between the multi-cores.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a fusion joint device. Background Art

[0002] The on-site fusion joint is a cable joint that fuses the cable high-voltage shield, insulation and outer shield according to the cable raw materials, main structure and specification requirements to form a cable joint with consistent intrinsic characteristics, no stress cone and no air gap interface.

[0003] At present, the production of medium-voltage three-core fusion joints mainly uses the method of heating and melting the tape as a whole after wrapping to restore the inner shielding layer and the insulation layer. The production of medium-voltage three-core fusion joints on site requires the flatness of the insulation layer surface after heating and melting, as well as the consistency of the overall outer diameter. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that when making a fusion joint of a multi-core cable, the overall outer diameters of the multi-core cables cannot be guaranteed to be consistent after heating and melting, thereby providing a fusion joint device.

[0005] In order to solve the above technical problems, the present invention provides a welding joint device, comprising: a center seat and a plurality of groups of half molds arranged around the center seat;

[0006] A welding cavity for accommodating the cables to be welded is provided between the center seat and the half mold, and a heating device and a temperature detection device are provided on the center seat and / or the half mold.

[0007] Optionally, the Hough mold includes a mold cavity having an arc-shaped groove opening toward the center seat.

[0008] Optionally, the outer layer of the mold cavity of the Hough mold is covered with heating tiles.

[0009] Optionally, a thermocouple is provided on the heating tile.

[0010] Optionally, the heating tile is detachably connected to the center seat via fasteners.

[0011] Optionally, there are a plurality of fasteners arranged at intervals along the axial direction of the heating tile.

[0012] Optionally, the end of the arc-shaped groove of the Hough mold facing the center seat has a positioning structure that cooperates with the center seat.

[0013] Optionally, the positioning structure includes a groove arranged at the end of the arc-shaped groove of the half mold, and a protrusion arranged on the center seat and matched with the groove.

[0014] Optionally, a thermocouple is provided at the center of the center seat.

[0015] Optionally, the center seat has installation angles extending toward the middle of two adjacent half molds, and a heating rod is arranged in the installation angle.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. The welding joint device provided by the present invention forms multiple welding chambers through a combination of a central seat and multiple groups of half molds arranged around it. The welding chamber is used to accommodate multiple battery cores of the cable to be welded. Therefore, when making a welding joint of a multi-core cable, welding joints can be made for multiple cores at the same time, ensuring the consistency of the manufacturing process between the multiple cores and achieving consistency in the overall outer diameter of the multiple cores.

[0018] 2. The welding joint device provided by the present invention, the half mold includes: a mold cavity, the outer layer of the mold cavity is detachably covered with a heating tile, the heating tile is heated and heated by a temperature control box, and the heating tile heats the battery cell through the mold cavity, thereby achieving heating and melting.

[0019] 3. In the welding joint device provided by the present invention, a heating rod is provided on the center seat, and the heating rod heats the battery core through the center seat, thereby achieving heating and melting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional diagram of an implementation manner of a welding joint device provided in an embodiment of the present invention.

[0022] Figure 2 for Figure 1 A three-dimensional view of the center seat in the figure.

[0023] Figure 3 for Figure 1 A three-dimensional image of the Hough mold.

[0024] Figure 4 for Figure 1 Exploded view of the center seat and a Huff mold.

[0025] Description of reference numerals:

[0026] 1. Center seat; 2. Welding cavity; 3. Mold cavity; 4. Heating tile; 5. Mounting angle; 6. Heating rod hole; 7. Thermocouple hole; 8. Fastener; 9. Groove; 10. Protrusion. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] The fusion joint device provided in this embodiment is used for making fusion joints of multi-core cables, and can realize simultaneous and same-process production of multiple cores, thereby ensuring the consistency of the overall outer diameters of the multiple cores.

[0032] like Figure 1As shown, a specific implementation of the welding joint device provided in this embodiment includes: a center seat 1 and multiple groups of half molds arranged around the center seat 1, and a welding cavity 2 for accommodating the cable to be welded is provided between the center seat 1 and the half mold, and the aperture of the welding cavity 2 is equal to the diameter of the cable to be welded. Specifically, this embodiment is provided with three groups of half molds, and the structures and sizes of the three groups of half molds are exactly the same, so that they can be used to make welding joints for three-core medium-voltage cables. The overall diameter of the welding joint after making is consistent, and the surface of the insulation layer is flat.

[0033] like Figure 1 , Figure 2 As shown, in the welding joint device provided in this embodiment, a heating device is provided on the center seat 1, and the heating device is used to heat the center seat 1. Specifically, the center seat 1 has mounting angles 5 extending toward the middle of two adjacent half molds, and a heating rod is provided in the mounting angles 5. The heating rod is connected to the controller, and the heating power of the heating rod can be controlled by the controller. In addition, the center seat 1 is also provided with a temperature detection device, and the temperature of the center seat 1 is detected by the temperature detection device. Specifically, the temperature detection device can be a thermocouple arranged at the center of the center seat 1, and the thermocouple is used to detect the temperature of the center seat 1 heated by the heating rod, so as to accurately control the heating process. The center seat 1 has a heating rod hole 6 and a thermocouple hole 7 that pass through along the circumferential direction. During installation, the heating rod and the thermocouple can be inserted into the corresponding holes.

[0034] like Figure 1 , Figure 3 As shown, in the welding joint device provided in this embodiment, the half mold includes: a mold cavity 3, and the outer layer of the mold cavity 3 is covered with a heating tile 4. The mold cavity 3 has an arc groove opening toward the center seat 1, and the arc groove is used to cooperate with the arc groove 9 on the center seat 1 to form a welding cavity 2 for accommodating the battery cell, and the welding joint of the battery cell is made through the welding cavity 2. In addition, a temperature detection device is also provided on the heating tile 4 to monitor the heating temperature of the heating tile 4. Specifically, the temperature detection device can be a thermocouple.

[0035] like Figure 1 , Figure 4As shown, the heating tile 4 is detachably connected to the center seat 1 by a fastener 8, and the fastener 8 has a plurality of fasteners 8 arranged at intervals along the axial direction of the heating tile 4. The end of the arc-shaped groove of the half mold facing the center seat 1 has a positioning structure that cooperates with the center seat 1, and the positioning structure is used to ensure the integrity of the inner wall of the welding cavity 2 formed by the center seat 1 and the half mold. Specifically, the positioning structure includes a groove 9 arranged at the end of the arc-shaped groove of the half mold, and a protrusion 10 arranged on the center seat 1 and cooperating with the groove 9, and the groove 9 and the protrusion 10 both extend along the circumferential direction of the half mold to ensure the consistency of the welding cavity 2 in the length direction. In addition, as an alternative embodiment, the positioning structure can also be a combination of a positioning hole and a positioning pin.

[0036] How to use

[0037] After wrapping the inner screen layer and the insulation layer of the three-core fusion joint successively, adjust the cable position and install it into the fusion cavity 2 between the center seat 1 and the three half molds respectively, and then lock the half molds and the center seat 1 with bolts.

[0038] After the installation is completed, the heating tile 4 and the heating rod are connected to the temperature control box respectively, and powered on for heating according to the process requirements. After the heating and melting are completed and the device is cooled, the device is removed.

[0039] The welding joint device provided in this embodiment improves the welding joint production efficiency and process level, while ensuring the welding joint product quality.

[0040] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present invention.

Claims

1. A welding joint device, characterized in that: include: A center seat (1) and a plurality of groups of half molds arranged around the center seat (1); A welding cavity (2) for accommodating the cables to be welded is provided between the center seat (1) and the half mold, and a heating device and a temperature detection device are provided on the center seat (1) and the half mold; A thermocouple is arranged at the center of the center seat (1), and the center seat (1) has mounting corners (5) extending toward the middle of two adjacent half molds, respectively, and a heating rod is arranged in the mounting corners (5).

2. The welding joint device according to claim 1, characterized in that: The half mold comprises a mold cavity (3), and the mold cavity (3) has an arc-shaped groove opening toward the center seat (1).

3. The welding joint device according to claim 2, characterized in that: The outer layer of the mold cavity (3) of the Hough mold is covered with a heating tile (4).

4. The welding joint device according to claim 3, characterized in that: The heating tile (4) is provided with a thermocouple.

5. The welding joint device according to claim 3, characterized in that: The heating tile (4) is detachably connected to the center seat (1) via a fastener (8).

6. The welding joint device according to claim 5, characterized in that: The fasteners (8) are multiple and are arranged at intervals along the axial direction of the heating tile (4).

7. The welding joint device according to any one of claims 2 to 6, characterized in that: The end of the arc-shaped groove of the half mold facing the center seat (1) has a positioning structure that cooperates with the center seat (1).

8. The welding joint device according to claim 7, characterized in that: The positioning structure comprises a groove (9) arranged at the end of the arc groove of the half mold, and a protrusion (10) arranged on the center seat (1) and matched with the groove (9).

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