Aluminum bar structure with connector

Abstract

The utility model discloses an aluminum bar structure with a connector, which is used for being plugged with a plug-in connector, and is characterized by comprising an aluminum bar, one end part of the aluminum bar is in butt joint and welding connection with the end part of a copper joint, and the other end part of the aluminum bar is in lap joint and welding connection with at least one terminal bar. And a shell is arranged on at least part of the peripheral surface of the terminal strip. The device is simple in structure, small in size, low in cost and convenient to install, and the production efficiency and the later maintenance efficiency of products can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically to an aluminum bar structure with connectors. Background Art

[0002] Traditional on-board aluminum busbars are mostly connected by screw connection, which is suitable for the main power supply connection. Then the current is dispersed by screwing large square wires. However, this structure cannot be flexibly installed and disassembled, the entire production process is relatively complicated, the production efficiency is low, and the cost is high.

[0003] Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an aluminum bar structure with a connector, which is used for plugging with a plug-in connector, comprising an aluminum bar, one end of which is butt-jointed with the end of a copper joint and welded, the other end of which is overlapped with at least one terminal bar and welded, and a shell is arranged on at least part of the outer peripheral surface of the terminal bar.

[0005] Optionally, the terminal row is composed of a welding portion, a bending portion and at least one plug-in portion which are connected in sequence.

[0006] Optionally, there are a plurality of the plug-in portions, which are arranged at intervals and are respectively connected to the ends of the bending portion in sequence.

[0007] Optionally, the terminal row includes the first terminal row and the second terminal row, and welding portions of the first terminal row and the second terminal row are respectively welded to the aluminum row.

[0008] Optionally, projections of the bent portions of the first terminal row and the second terminal row in the thickness direction at least partially overlap.

[0009] Optionally, the terminal row is flat.

[0010] Optionally, at least the outer peripheral surfaces of the aluminum bar and the terminal bar are covered with a heat shrink tube.

[0011] Optionally, at least one axially penetrating installation cavity is provided in the shell, and at least part of the terminal row is arranged in the installation cavity and is electrically connected to the aluminum row.

[0012] Optionally, it is characterized in that a clamping structure is respectively provided between the installation cavity and the terminal row to limit the axial movement of the terminal row in the installation cavity.

[0013] Optionally, the plug-in parts of the first terminal row and the second terminal row are stacked in the mounting cavity and have a set gap.

[0014] The utility model has the following technical effects:

[0015] This structure enables the aluminum busbar to be quickly and conveniently connected to different wiring harnesses at the connector end, and the current on the aluminum busbar is distributed in detail. It has a simple structure, small size, low cost, and is easy to install, which can improve the production efficiency and subsequent maintenance efficiency of the product.

[0016] In addition, using aluminum bars instead of traditional copper bars can not only reduce the weight of the product, but also greatly reduce the production cost.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of the connection structure of the aluminum bar and the copper joint of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the aluminum row structure to be connected in the utility model;

[0021] Figure 3 for Figure 2 A cross-sectional view of

[0022] Figure 4 for Figure 3 Middle A-direction view;

[0023] Figure 5 is a schematic diagram of the structure of the first terminal row and the second terminal row;

[0024] Figure 6 for Figure 5 Side view of.

[0025] The following are marked in the figure:

[0026] 1. Aluminum busbar; 2. Copper joint; 3. Terminal block; 4. Shell; 5. Heat shrink tube; 6. Snap-on structure; 7. Insulation layer;

[0027] 31. First terminal row; 32. Second terminal row;

[0028] 310, welding part; 320, bending part; 330, plug-in part;

[0029] 41. Installation cavity. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] like Figure 1-Figure 6 The aluminum bar 1 structure with a connector is used for plugging with a plug-in connector, and includes an aluminum bar 1, one end of which is docked with the end of a copper joint 2 and welded. The preferred welding method is stir friction welding.

[0035] The other end of the aluminum bar 1 is overlapped and welded with at least one terminal bar 3, and a housing 4 is provided on at least part of the outer peripheral surface of the terminal bar 3 for connecting with the plug-in end (plug-in connector). The aluminum bar 1 and the terminal bar 3 are preferably welded by ultrasonic welding.

[0036] At least one installation cavity 41 extending axially therethrough is disposed in the housing 4 , and at least a portion of the terminal row 3 is disposed in the installation cavity 41 and is electrically connected to the aluminum row 1 .

[0037] In one embodiment, the terminal row 3 includes a welding portion 310 and a plurality of plug-in portions 330, one end of each of the plurality of plug-in portions 330 is sequentially spaced and connected to the welding portion 310 in an integral manner, the other end of each of the plurality of plug-in portions 330 is electrically connected to different wiring harnesses of the plug-in end, and different plug-in portions 330 are respectively arranged in the mounting cavity 41 of the housing 4 and insulated from each other. The terminal row 3 in this structure can be one or more; when there is one terminal row 3, the welding portion 310 is directly connected to the aluminum row 1 by ultrasonic welding; when there are multiple terminal rows 3, different welding portions 310 are arranged side by side and are respectively ultrasonically welded to the aluminum row 1.

[0038] In another embodiment, Figure 3 and Figure 6As shown, the terminal block 3 is formed integrally by a welding portion 310, a bending portion 320 and at least one plug-in portion 330. A plurality of the plug-in portions 330 are arranged at intervals and are respectively connected to the ends of the bending portion 320 in sequence.

[0039] Through this structure, the aluminum busbar 1 can be quickly and conveniently connected to different wiring harnesses at the plug-in end, and the current on the aluminum busbar 1 can be finely distributed. It has a simple structure, small size, low cost, flexible use, and easy installation. It can improve the production efficiency and subsequent maintenance efficiency of the product and is suitable for large-scale production.

[0040] In addition, using the aluminum busbar 1 to replace the traditional copper busbar can not only reduce the weight of the product, but also greatly reduce the production cost.

[0041] In one embodiment, if Figure 4 As shown, the terminal row 3 is flat in structure.

[0042] In a specific embodiment, Figures 2 to 6 As shown, the terminal row 3 includes the first terminal row 31 and the second terminal row 32 , and the welding parts 310 of the first terminal row 31 and the second terminal row 32 are respectively welded to the aluminum row 1 .

[0043] like Figure 2 As shown, the projections of the bending portions 320 of the first terminal row 31 and the second terminal row 32 in the thickness direction at least partially overlap. The first terminal row 31 and the second terminal row 32 are at least partially stacked up and down, which can reduce the volume of the product.

[0044] In one embodiment, if Figure 3 As shown, at least the outer peripheral surfaces of the aluminum bar 1 and the terminal bar 3 are covered with a heat shrink tube 5 to ensure the fire resistance and insulation of the product.

[0045] In one embodiment, if Figure 3 As shown, a clamping structure 6 is provided between the installation cavity 41 and the terminal block 3 to limit the axial movement of the terminal block 3 in the installation cavity 41. Figure 3 As shown, a clamping protrusion is provided on the plug-in portion 330 of the terminal, and a clamping groove connected to the clamping protrusion is provided inside the housing 4 to limit the movement of the terminal row 3.

[0046] In one embodiment, if Figure 4 As shown, the plug-in parts 330 of the first terminal row 31 and the second terminal row 32 are stacked in the mounting cavity 41 with a set gap, and the first terminal row 31 and the second terminal row 32 are insulated from each other and conveniently electrically connected to the plug ends.

[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An aluminum bar structure with a connector, used for plugging with a plug-in connector, characterized in that: It comprises an aluminum bar, one end of which is butted against the end of a copper joint and welded, the other end of which is overlapped and welded with at least one terminal bar, and a shell is arranged on at least part of the outer peripheral surface of the terminal bar.

2. The aluminum bar structure with connector according to claim 1, characterized in that: The terminal row is composed of a welding portion, a bending portion and at least one plug-in portion which are connected in sequence.

3. The aluminum bar structure with connector according to claim 2, characterized in that: There are a plurality of the plug-in parts, which are arranged at intervals and are respectively connected to the ends of the bending part in sequence.

4. The aluminum bar structure with connector according to claim 2, characterized in that: The terminal row comprises a first terminal row and a second terminal row, and welding portions of the first terminal row and the second terminal row are respectively welded and connected to the aluminum row.

5. The aluminum bar structure with connector according to claim 4, characterized in that: Projections of the bent portions of the first terminal row and the second terminal row in the thickness direction at least partially overlap.

6. The aluminum bar structure with connector according to claim 1, characterized in that: The terminal row is flat.

7. The aluminum bar structure with connector according to claim 1, characterized in that: At least the outer peripheral surfaces of the aluminum bar and the terminal bar are covered with a heat shrink tube.

8. The aluminum bar structure with connector according to claim 4, characterized in that: At least one axially penetrating mounting cavity is provided in the housing, and at least a portion of the terminal row is arranged in the mounting cavity and is electrically connected to the aluminum row.

9. The aluminum bar structure with connector according to claim 8, characterized in that: A clamping structure is respectively arranged between the installation cavity and the terminal row to limit the axial movement of the terminal row in the installation cavity.

10. The aluminum bar structure with connector according to claim 8, characterized in that: The plug-in parts of the first terminal row and the second terminal row are stacked in the installation cavity and have a set gap.

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