Output electrode copper bar heterogeneous welding jig structure

Abstract

An output electrode copper bar heterogeneous welding jig structure comprises a bottom plate; the profiling supporting seat is fixedly arranged on the bottom plate and is used for supporting a structural member in the output pole copper bar; and the silicon carbide tube is fixedly arranged on the bottom plate and is used for supporting and protecting the silver-plated copper sleeve in the output electrode copper bar. According to the output electrode copper bar heterogeneous welding jig structure, the silicon carbide pipe is used for supporting and protecting the silver-plated copper sleeve, then oxidation damage to a silver-plated layer caused by high temperature in the welding process is isolated, peeling and oxidation discoloration of the silver-plated layer after the high temperature are prevented, and the development of the welding jig structure has the advantages of reducing poor welding and improving the welding quality. And the welding quality and yield are improved, and great significance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to an output pole copper bar heterogeneous welding fixture structure. Background Art

[0002] The quality of the output copper bus is an important guarantee for the power transmission performance of new energy vehicles. There is an output copper bus currently, which is composed of a structural part, a copper nut and a copper sleeve. A through hole is usually provided on the structural part. One end of the copper nut passes through the through hole and is connected by the copper sleeve. The connection is fixed by welding. In order to improve the electrical connection performance, the surface of the copper sleeve is usually provided with a silver plating layer. During the welding process, the silver plating layer is easily damaged by oxidation and discolored by oxidation at high temperature.

[0003] At present, the traditional welding method for this type of workpiece is to directly expose the entire silver-plated workpiece to the high welding temperature. The high temperature will damage the silver plating layer, and the overall defect rate is as high as about 15%.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design an output pole copper bar heterogeneous welding fixture structure to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an output electrode copper bar heterogeneous welding fixture structure.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a technical solution: an output electrode copper bar heterogeneous welding fixture structure, comprising:

[0007] base plate;

[0008] A contoured support seat, the contoured support seat being fixedly mounted on the bottom plate and used for supporting one side of a structural member in the output pole copper bar;

[0009] A silicon carbide tube is fixed on the base plate and is configured to allow the silver-plated copper sleeve in the output pole copper bar to be inserted and to support the other side of the structural member in the output pole copper bar.

[0010] The preferred technical solution is: the silicon carbide tube is constructed as a cylindrical structure, and the inner diameter of the silicon carbide tube is larger than the outer diameter of the silver-plated copper sleeve.

[0011] The preferred technical solution is that the top support surface of the silicon carbide tube is flush with the top support surface of the contoured support seat.

[0012] The preferred technical solution is: the silicon carbide tube is positioned on the base plate through a jacket, the jacket is composed of a fixed clamp, a movable clamp, a rotating shaft and a first locking bolt, the ear of the fixed clamp and the ear of the movable clamp are hinged by the rotating shaft, a first screw hole is provided on the inner side of the fixed clamp, and a first step hole is provided on the outer side of the movable clamp that is connected to the inner side and corresponds to the first screw hole, and the first locking bolt is screwed into the first screw hole through the first step hole.

[0013] A preferred technical solution is that the inner sides of the fixed clamp and the movable clamp are both provided with clamping grooves that correspond to and match the outer circumference of the silicon carbide tube.

[0014] The preferred technical solution is: the sleeve is fixed to the base plate by a second locking bolt, a second screw hole is provided on the base plate, the upper end face of the fixing clamp is provided with a second step hole connected to the lower end face and corresponding to the second screw hole, and the second locking bolt is screwed into the second screw hole through the second step hole.

[0015] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0016] The utility model provides an output pole copper bar heterogeneous welding fixture structure, which uses a silicon carbide tube to support and protect the silver-plated copper sleeve. Silicon carbide is a high-performance ceramic material. Its physical and chemical properties show extremely high stability and corrosion resistance, and it is resistant to hot and cold shocks. In a high-temperature environment, silicon carbide can maintain good heat resistance and oxidation resistance, and has a high-temperature tolerance of up to 1700°C. It can operate stably for a long time in a high-temperature environment, thereby isolating the silver-plated layer from oxidation damage caused by high temperature during welding, and preventing the silver-plated layer from peeling and oxidizing and discoloring after high temperature. The development of this welding fixture structure is of great significance for reducing poor welding and improving the welding quality yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the welding jig structure involved in the present utility model.

[0018] Figure 2 This is a schematic diagram of the output pole copper bar structure involved in the utility model.

[0019] Figure 3 This is a structural diagram of the output electrode copper bar involved in the present invention being positioned on a welding jig. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] See also Figure 1-Figure 3 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] Example:

[0024] like Figures 1 to 3 As shown, according to an overall technical concept of the present invention, a heterogeneous welding fixture structure for an output copper bar is provided, comprising:

[0025] Base plate 1;

[0026] The contour support seat 2 is fixed on the bottom plate 1 and is used to support the structural member 110 in the output pole copper bar 100;

[0027] The silicon carbide tube 3 is fixed on the base plate 1 . The silicon carbide tube 3 is configured to allow the silver-plated copper sleeve 120 in the output copper bar 100 to be inserted, and to support the other side of the structural member 110 in the output copper bar 100 .

[0028] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the silicon carbide tube 3 is configured as a cylindrical structure, and the inner diameter of the silicon carbide tube 3 is larger than the outer diameter of the silver-plated copper sleeve 120 .

[0029] like Figures 1 to 3As shown, in an exemplary embodiment of the present invention, the top support surface of the silicon carbide tube 3 is flush with the top support surface of the contoured support seat 2 .

[0030] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the silicon carbide tube 3 is positioned on the base plate by a jacket 4, and the jacket 4 is composed of a fixed clamp 41, a movable clamp 42, a rotating shaft 43 and a first locking bolt (not shown). The ear of the fixed clamp 41 and the ear of the movable clamp 42 are hingedly arranged by the rotating shaft 43. The inner side of the fixed clamp 41 is provided with a first screw hole, and the outer side of the movable clamp 42 is provided with a first step hole 421 connected to the inner side and corresponding to the first screw hole. The first locking bolt is screwed into the first screw hole through the first step hole 421; this structure is used to fix the silicon carbide tube 3 and facilitate the replacement of the silicon carbide tube 3.

[0031] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the inner sides of the fixed clamp 41 and the movable clamp 42 are both provided with clamping grooves corresponding to the outer circumference of the silicon carbide tube 3 for achieving stable clamping of the silicon carbide tube 3.

[0032] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the jacket 4 is fixed to the base plate 1 by a second locking bolt (not shown), a second screw hole is provided on the base plate 1, and the upper end surface of the fixing clamp 41 is provided with a second step hole 411 connected to the lower end surface and corresponding to the second screw hole, and the second locking bolt is screwed into the second screw hole through the second step hole 411. This structure is used to achieve a stable connection between the jacket 4 and the base plate 1.

[0033] In this solution, the silicon carbide tube 3 is used to support the output electrode copper bar 100 structure 110 while protecting the silver-plated copper sleeve 120 inserted into the silicon carbide tube 3 to prevent the silver layer on the surface of the silver-plated copper sleeve 120 from oxidizing and discoloring due to high temperature.

[0034] Therefore, the utility model has the following advantages:

[0035] The utility model provides an output pole copper bar heterogeneous welding fixture structure, which uses a silicon carbide tube to support and protect the silver-plated copper sleeve. Silicon carbide is a high-performance ceramic material. Its physical and chemical properties show extremely high stability and corrosion resistance, and it is resistant to hot and cold shocks. In a high-temperature environment, silicon carbide can maintain good heat resistance and oxidation resistance, and has a high-temperature tolerance of up to 1700°C. It can operate stably for a long time in a high-temperature environment, thereby isolating the silver-plated layer from oxidation damage caused by high temperature during welding, and preventing the silver-plated layer from peeling and oxidizing and discoloring after high temperature. The development of this welding fixture structure is of great significance for reducing poor welding and improving the welding quality yield.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An output copper bar heterogeneous welding fixture structure, characterized in that: include: base plate; A contoured support seat, the contoured support seat being fixedly mounted on the bottom plate and used to support one side of a structural member in the output pole copper bar; A silicon carbide tube is fixed on the base plate and is configured to allow the silver-plated copper sleeve in the output pole copper bar to be inserted and to support the other side of the structural member in the output pole copper bar.

2. The output electrode copper bar heterogeneous welding fixture structure according to claim 1 is characterized in that: The silicon carbide tube is configured as a cylindrical structure, and the inner diameter of the silicon carbide tube is larger than the outer diameter of the silver-plated copper sleeve.

3. The output electrode copper bar heterogeneous welding fixture structure according to claim 1 is characterized in that: The top supporting surface of the silicon carbide tube is flush with the top supporting surface of the contoured support seat.

4. The output electrode copper bar heterogeneous welding fixture structure according to claim 1, characterized in that: The silicon carbide tube is positioned on the base plate through a jacket, and the jacket is composed of a fixed clamp, a movable clamp, a rotating shaft and a first locking bolt. The ear of the fixed clamp and the ear of the movable clamp are hingedly connected by the rotating shaft. A first screw hole is provided on the inner side of the fixed clamp, and a first step hole is provided on the outer side of the movable clamp that is connected to the inner side and corresponds to the first screw hole. The first locking bolt is screwed into the first screw hole through the first step hole.

5. The output electrode copper bar heterogeneous welding fixture structure according to claim 4 is characterized in that: The inner sides of the fixed clamp and the movable clamp are both provided with clamping grooves corresponding to the outer circumference of the silicon carbide tube.

6. The output electrode copper bar heterogeneous welding fixture structure according to claim 4, characterized in that: The sleeve is fixed to the base plate by a second locking bolt. A second screw hole is provided on the base plate. The upper end surface of the fixing clamp is provided with a second step hole connected to the lower end surface and corresponding to the second screw hole. The second locking bolt is screwed into the second screw hole through the second step hole.

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