Copper bar structure
By setting an auxiliary part in the copper bar structure and inserting it directly into the connection object, the existing copper bar structure is solved, and the connection stability and area of the electrical connection area are improved.
Patent Information
- Application Number
- CN202421951625.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When the existing copper bar structure is connected to the object, it is easy to cause the second hard copper bar to loosen, affecting the connection stability.
A copper row structure is designed, and the auxiliary part can be directly inserted into the connecting object by setting up an auxiliary part, thereby enhancing the contact area and vibration resistance with the connecting object.
It effectively improves the connection stability of the second hard copper bar and the connecting object, reduces the risk of loosening, and enhances the area of the electrical connection area, suitable for large currents to pass through.
Smart Images
Figure CN222966458U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of copper bars, and particularly relates to a copper bar structure. Background Art
[0002] A copper bar, also known as a copper busbar or copper bus, is made of copper and is a long conductor with a rectangular or chamfered (rounded) rectangular cross-section, which plays the role of conveying current and connecting electrical equipment in a circuit.
[0003] Currently, the existing copper bar structure mainly includes a first rigid copper bar, a flexible copper bar, and a second rigid copper bar connected in sequence; when assembling this copper bar structure to a connection object, usually the second rigid copper bar is first fixed to the connection object, and the first rigid copper bar can rotate or translate relative to the second rigid copper bar through the flexible copper bar, so as to leave space for the installation of subsequent components. After the subsequent components are installed in place, the first rigid copper bar is then placed in the corresponding position for fixation.
[0004] Among them, the second rigid copper bar is usually attached to the surface of the connection object and locked and fixed with screws. However, such a connection method is likely to cause the second rigid copper bar to become loose. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a copper bar structure. By setting an auxiliary part, it can be directly inserted into the connection object, thereby effectively improving the connection stability between the second rigid copper bar and the connection object and reducing the risk of the second rigid copper bar becoming loose.
[0006] The utility model provides a copper bar structure, including a first rigid copper bar, a flexible copper bar, and a second rigid copper bar connected in sequence. The second rigid copper bar includes a first connection part and a second connection part. The first connection part and the second connection part are parallel to each other. One end of the first connection part is connected to the flexible copper bar, and the other end of the first connection part is connected to the second connection part through an auxiliary part. The auxiliary part and the second connection part are perpendicular to each other.
[0007] Specifically, the first connection part is connected to the flexible copper bar through a first bending part, and the bending direction of the first bending part is the same as the extending direction of the auxiliary part.
[0008] Specifically, the first connection part is connected to the auxiliary part through a second bending part, and the auxiliary part is connected to the second connection part through a third bending part.
[0009] Specifically, the second bending part and the third bending part are distributed at intervals.
[0010] Specifically, a first connection hole is provided in the first rigid copper bar.
[0011] Specifically, a fourth bending portion is formed on the side of the first rigid copper bar away from the flexible copper bar, and the included angle of the fourth bending portion is less than 150°.
[0012] Specifically, the second connecting portion is provided with a second connecting hole.
[0013] Specifically, a first convex block is provided on one side of the second connecting portion, and a second convex block is provided on the other side of the second connecting portion.
[0014] Specifically, the protruding height of the first convex block is less than the protruding height of the second convex block.
[0015] Specifically, the surface of the flexible copper bar is coated with an insulating sleeve.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] In the copper bar structure of the present utility model, the first connecting portion and the second connecting portion are parallel to each other, the first connecting portion is connected to the second connecting portion through the auxiliary portion, and the auxiliary portion and the second connecting portion are perpendicular to each other; when assembling the second rigid copper bar to the connection object, the auxiliary portion can be directly inserted into the connection object, which not only increases the contact area between the second rigid copper bar and the connection object, but also enhances the vibration resistance of the second rigid copper bar, thereby effectively improving the connection stability between the second rigid copper bar and the connection object and reducing the risk of loosening of the second rigid copper bar. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 is an overall schematic diagram of the copper bar structure in the embodiment of the present utility model;
[0020] Figure 2 is a schematic diagram of the structure of the first combination portion and the second combination portion in the embodiment of the present utility model.
[0021] In the accompanying drawings, 100 is the first rigid copper bar; 101 is the first connection hole; 102 is the fourth bending part; 110 is the third overlapping part; 200 is the flexible copper bar; 210 is the first overlapping part; 220 is the second overlapping part; 300 is the second rigid copper bar; 310 is the first connection part; 311 is the first bending part; 312 is the second bending part; 320 is the second connection part; 321 is the third bending part; 322 is the second connection hole; 323 is the first bump; 324 is the second bump; 330 is the auxiliary part; 340 is the fourth overlapping part. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
[0023] The present invention provides a copper bar structure. Figure 1 The overall schematic diagram of the copper bar structure in the embodiment of the present invention is shown, including a first rigid copper bar 100, a flexible copper bar 200, and a second rigid copper bar 300 connected in sequence. The second rigid copper bar 300 includes a first connection part 310 and a second connection part 320. The first connection part 310 and the second connection part 320 are parallel to each other. One end of the first connection part 310 is connected to the flexible copper bar 200, and the other end of the first connection part 310 is connected to the second connection part 320 through an auxiliary part 330. The auxiliary part 330 and the second connection part 320 are perpendicular to each other.
[0024] When assembling the second rigid copper bar 300 to a connection object, the auxiliary part 330 can be directly inserted into the connection object, which not only increases the contact area between the second rigid copper bar 300 and the connection object, but also enhances the vibration resistance of the second rigid copper bar 300, thereby effectively improving the connection stability between the second rigid copper bar 300 and the connection object and reducing the risk of loosening of the second rigid copper bar 300.
[0025] In addition, the auxiliary part 330 can also increase the area of the electrical connection region between the second rigid copper bar 300 and the connection object, which is beneficial to the passage of large currents.
[0026] In some specific embodiments, please refer to Figure 1, the thicknesses of the first rigid copper bar 100, the flexible copper bar 200, and the second rigid copper bar 300 are the same, which is conducive to maintaining the overall thickness consistency of the copper bar structure, making the current distribution in the copper bar structure more uniform. This helps to reduce the local overheating phenomenon caused by current concentration, thereby being beneficial to improving the stability and safety of the system.
[0027] In some specific embodiments, please refer to Figure 1 , the first connecting portion 310 is connected to the flexible copper bar 200 through a first bending portion 311, and the bending direction of the first bending portion 311 is the same as the extending direction of the auxiliary portion 330. The distance between the first bending portion 311 and the auxiliary portion 330 is specifically designed according to the connection object. The extending area after the first bending portion 311 is bent and the auxiliary portion 330 can cooperate with each other to form a U-shaped structure, and the U-shaped structure can better clamp the connection object, thereby further enhancing the connection stability between the second rigid copper bar 300 and the connection object.
[0028] In some specific embodiments, please refer to Figure 1 , the first connecting portion 310 is connected to the auxiliary portion 330 through a second bending portion 312, and the auxiliary portion 330 is connected to the second connecting portion 320 through a third bending portion 321. The second bending portion 312 and the third bending portion 321 can increase the stability and rigidity of the connection structure. Especially when subjected to external forces or vibrations, the bending design helps to disperse stress and reduce the risk of deformation and damage.
[0029] Specifically, please refer to Figure 1 , the second bending portion 312 and the third bending portion 321 are spaced apart, which is convenient for the bending processing between the first connecting portion 310 and the auxiliary portion 330, and is also convenient for the bending processing between the second connecting portion 320 and the auxiliary portion 330, without interference.
[0030] In some specific embodiments, please refer to Figure 1 , a first connecting hole 101 is provided in the first rigid copper bar 100, and the first connecting hole 101 is used to pass through a screw to lock and fix the first rigid copper bar 100 on the connection object; a second connecting hole 322 is provided in the second connecting portion 320, and the second connecting hole 322 is used to pass through a screw to lock and fix the second rigid copper bar 300 on the connection object.
[0031] In some specific embodiments, please refer to Figure 1, the first hard copper busbar 100 is formed with a fourth bending portion 102 on the side away from the flexible copper busbar 200, and the angle of the fourth bending portion 102 is less than 150°, which is used to distinguish the front and back sides of the first hard copper busbar 100; wherein, the side away from the bending direction of the fourth bending portion 102 is the front side of the first hard copper busbar 100, which is flat and smooth, has good contact with the connection object, and is conducive to reducing contact resistance; the side of the bending direction of the fourth bending portion 102 is the back side of the first hard copper busbar 100, which has a certain degree of roughness, can enhance the friction between the screw and is conducive to preventing the screw from rotating. In addition, the existence of the fourth bending portion 102 also makes it easier for people to hold the first hard copper busbar 100 during assembly.
[0032] In some specific embodiments, see Figure 1 A first protrusion 323 is provided on one side of the second connecting part 320, and a second protrusion 324 is provided on the other side of the second connecting part 320; during assembly, the first protrusion 323 and the second protrusion 324 will be correspondingly embedded in the connecting object, which can improve the installation stability of the second connecting part 320.
[0033] For details, please refer to Figure 1 The protrusion height of the first protrusion 323 is significantly smaller than the protrusion height of the second protrusion 324, which is used to distinguish the installation direction and prevent people from making mistakes during assembly.
[0034] Furthermore, the protrusion height of the first protrusion 323 ranges from 0.4 to 0.6 mm, and the protrusion height of the second protrusion 324 ranges from 3.4 to 3.6 mm, which are small and easy to process.
[0035] In some specific embodiments, the surface of the flexible copper busbar 200 is covered with an insulating sleeve, which can not only provide electrical insulation but also effectively protect the flexible copper busbar 200 and reduce the risk of damage to the flexible copper busbar 200.
[0036] Figure 2The structural schematic diagram of the first combination part and the second combination part in the embodiment of the present utility model is shown. The two ends of the flexible copper busbar 200 are respectively provided with a first lapping part 210 and a second lapping part 220. One end of the first rigid copper busbar 100 connected to the flexible copper busbar 200 is provided with a third lapping part 110. One end of the second rigid copper busbar 300 connected to the flexible copper busbar 200 is provided with a fourth lapping part 340. The first lapping part 210 and the third lapping part 110 are fixedly connected to form a first combination part. The second lapping part 220 and the fourth lapping part 340 are fixedly connected to form a second combination part. The thickness of the first combination part is the same as the thickness of the first rigid copper busbar 100. The thickness of the second combination part is the same as the thickness of the second rigid copper busbar 300. Lapping can reduce the connection difficulty between the flexible copper busbar 200 and the rigid copper busbar, and is also beneficial to improving the connection stability between the flexible copper busbar 200 and the rigid copper busbar. The thickness of the combination part is the same as the thickness of the rigid copper busbar, which is beneficial to the uniform passage of current.
[0037] Specifically, the first lapping part 210 is provided with a first lapping groove, the second lapping part 220 is provided with a second lapping groove, the third lapping part 110 is correspondingly provided with a first lapping rib, the fourth lapping part 340 is correspondingly provided with a second lapping rib, the first lapping groove and the first lapping rib are in conformity, and the second lapping groove and the second lapping rib are in conformity, which can effectively ensure the connection stability between the flexible copper busbar 200 and the rigid copper busbar.
[0038] In some specific embodiments, the flexible copper busbar 200 includes a plurality of stacked copper sheets. The two ends of the plurality of stacked copper sheets are fixedly connected by molecular diffusion welding or ultrasonic welding. The peeling force between the copper sheets is greater than 130 N, which is firm and reliable. Specifically, the flexible copper busbar 200 includes 10 stacked copper sheets, which is beneficial to ensuring the strength of the flexible copper busbar 200. Further, the thickness of any one of the copper sheets is 0.2 mm, and the material of any one of the copper sheets is T2-M state copper, which has good electrical conductivity and good thermal conductivity.
[0039] In some specific embodiments, the surface of any one of the copper sheets is passivated to form a passivation film. The passivation film can prevent the copper from reacting with corrosive substances such as oxygen, moisture, and sulfides in the air, which is beneficial to protecting the working stability of the flexible copper busbar 200. In addition, the flexible copper busbar 200 with a passivation film needs to be treated in neutral salt spray for at least 24 h to detect whether the passivation film is qualified, so as to ensure the antioxidant ability of the flexible copper busbar 200.
[0040] In some specific embodiments, the length range of the flexible copper busbar 200 is 43 - 47 mm, the width range of the flexible copper busbar 200 is 13.9 - 14.0 mm, and the length range of the first rigid copper busbar 100 is 18.4 - 18.6 mm, with high dimensional accuracy.
[0041] For the copper busbar structure of the present utility model, its auxiliary part 330 can be directly inserted into the connection object, which not only increases the contact area between the second rigid copper busbar 300 and the connection object, but also enhances the vibration resistance of the second rigid copper busbar 300, thereby effectively improving the connection stability between the second rigid copper busbar 300 and the connection object and reducing the risk of loosening of the second rigid copper busbar 300; the auxiliary part 330 can also increase the area of the electrical connection region between the second rigid copper busbar 300 and the connection object, which is beneficial to the passage of large currents.
[0042] The overall thickness of the copper busbar structure is consistent, making the distribution of current in the copper busbar structure more uniform, which helps to reduce the local overheating phenomenon caused by current concentration, thereby being beneficial to improving the stability and safety of the system.
[0043] The extended region after bending of the first bending part 311 and the auxiliary part 330 can cooperate with each other to form a U-shaped structure, and the U-shaped structure can better clamp the connection object, thereby further enhancing the connection stability between the second rigid copper busbar 300 and the connection object; the second bending part 312 and the third bending part 321 can increase the stability and rigidity of the connection structure. Especially when subjected to external forces or vibrations, the bending design helps to disperse stress and reduce the risk of deformation and damage; the fourth bending part 102 is used to distinguish the front and back sides of the first rigid copper busbar 100 and also facilitates people to hold the first rigid copper busbar 100 during assembly.
[0044] During assembly, the first convex block 323 and the second convex block 324 can improve the installation stability of the second connection part 320 and can also prevent people from making mistakes during assembly.
[0045] Lap joint can reduce the connection difficulty between the flexible copper busbar 200 and the rigid copper busbar and is also beneficial to improving the connection stability between the flexible copper busbar 200 and the rigid copper busbar; the thickness of the combined part is the same as that of the rigid copper busbar, which is beneficial to the uniform passage of current.
[0046] The copper busbar structure of the present utility model can be used in an environment of -40°C to -125°C and is cold-resistant; moreover, the copper busbar structure of the present utility model meets the 10g vibration test (the test refers to GB / T28046.3-2011) and also meets the requirements of ROHS2.0 and GB / T30512-2014 "Automobile Prohibited Substances".
[0047] The above has introduced in detail a copper bar structure provided by an embodiment of the present utility model. In this article, specific examples have been used to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A copper busbar structure, comprising a first hard copper busbar, a flexible copper busbar and a second hard copper busbar connected in sequence, characterized in that: The second hard copper busbar includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are parallel to each other, one end of the first connecting portion is connected to the flexible copper busbar, the other end of the first connecting portion is connected to the second connecting portion through an auxiliary portion, and the auxiliary portion and the second connecting portion are perpendicular to each other.
2. The copper busbar structure according to claim 1, characterized in that: The first connecting portion is connected to the flexible copper busbar via a first bending portion, and a bending direction of the first bending portion is the same as an extending direction of the auxiliary portion.
3. The copper busbar structure according to claim 1, characterized in that: The first connection portion is connected to the auxiliary portion through a second bending portion, and the auxiliary portion is connected to the second connection portion through a third bending portion.
4. The copper busbar structure according to claim 3, characterized in that: The second bending portion and the third bending portion are spaced apart.
5. The copper busbar structure according to claim 1, characterized in that: A first connection hole is formed in the first hard copper busbar.
6. The copper busbar structure according to claim 1, characterized in that: A fourth bending portion is formed on a side of the first hard copper busbar away from the flexible copper busbar, and an included angle of the fourth bending portion is less than 150°.
7. The copper busbar structure according to claim 1, characterized in that: The second connecting portion is provided with a second connecting hole.
8. The copper busbar structure according to claim 1, characterized in that: A first bump is disposed on one side of the second connection portion, and a second bump is disposed on the other side of the second connection portion.
9. The copper busbar structure according to claim 8, characterized in that: A protrusion height of the first protrusion is smaller than a protrusion height of the second protrusion.
10. The copper busbar structure according to claim 1, characterized in that: The surface of the flexible copper busbar is covered with an insulating sleeve.