CN210606675U

CN210606675U - Pressfitting generating line and generating line connection structure

Info

Publication number: CN210606675U
Application number: CN201921362697.1U
Authority: CN
Inventors: 杨善文; 时晓蕾; 苏金国; 关鹏
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-22
Anticipated expiration: 2029-08-21

Abstract

The utility model provides a press-fit bus and a bus connecting structure comprising the same, wherein the press-fit bus comprises metal polar plates which are arranged into a plurality of layers, and a first insulating layer is arranged between any adjacent metal polar plates; and through holes for installing connecting pieces are formed in each layer of metal polar plate. The pressing bus has the advantages of compact structure, convenience in processing, high processing efficiency, high connection strength with other electric devices or buses and more stable connection.

Description

Pressfitting generating line and generating line connection structure

Technical Field

The utility model belongs to the electrical part field of connecting, in particular to pressfitting generating line and generating line connection structure.

Background

The laminated bus is a multilayer composite structure connecting bar, is generally formed by laminating a plurality of layers of metal plates, and has the characteristics of repeatable electrical performance, low impedance, interference resistance, good reliability, space saving, simplicity and quickness in assembly and the like. Before the pressed bus is installed and connected, the metal plates of all the poles are usually leveled by welding cushion blocks, and when the bus is connected with other devices, the installation surface is on a horizontal plane.

In the process of practical application, the press-fit bus not only needs to be connected with various electric devices, but also needs to be connected with other buses. However, these electrical devices or other bus bars may not have threaded holes in themselves, and thus, these electrical devices or bus bars may not be connected to the press-fit bus bar.

At present, the mode of arranging threads on a welded cushion block or pressing and riveting a nut on the back surface of the cushion block is generally adopted, and the problem that an electric device or a bus cannot be connected with a pressed bus due to the fact that a threaded hole is not formed in the electric device or the bus. However, the connection strength between the spacer and the metal plate is reduced by providing the screw on the spacer or pressing and riveting the nut on the back surface of the spacer, so that the connection between the pressed bus bar and other bus bars or the metal plate is unstable. Meanwhile, the nut is pressed on the back surface of the cushion block or the threads are arranged on the cushion block, so that the bus processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a pressfitting generating line reaches to include the generating line connection structure of pressfitting generating line, pressfitting generating line compact structure, the processing of being convenient for, machining efficiency is high to it is high with other electrical part or generating line joint strength, it is more stable to connect.

A pressed bus comprises metal polar plates, wherein the metal polar plates are arranged into a plurality of layers, and a first insulating layer is arranged between any adjacent metal polar plates;

and through holes for installing connecting pieces are formed in each layer of metal polar plate.

Preferably, the laminated bus further includes a second insulating layer and a third insulating layer;

the second insulating layer and the third insulating layer are respectively positioned on the first surface and the second surface of the pressed bus.

Preferably, the press-fit bus is manufactured by adopting a press-fit process.

A bus connecting structure comprises a connecting piece and the press-fit bus,

the connecting piece comprises a cushion block and a nut, and the cushion block and the nut are respectively riveted with the metal polar plate.

Preferably, the through hole of the bus bar connecting structure comprises a first through hole;

the cushion block is embedded into the first through hole from the first surface of the metal polar plate.

Preferably, a boss is arranged on the cushion block and embedded in the first through hole.

Preferably, a gap groove is formed at the joint of the boss and the cushion block.

Preferably, the through hole of the bus bar connecting structure further comprises a second through hole;

the nut is press-riveted into the second through hole from the second surface of the metal polar plate.

Preferably, the cushion block is provided with an opening, and the diameter of the opening is smaller than that of the second through hole.

Preferably, the through hole further comprises a third through hole, and the cushion block and the nut penetrate through the third through hole and are riveted with the metal pole plate.

Generating line connection structure, cushion and nut are riveted respectively on the metal sheet just anti-two sides, need not to weld the cushion, need not to set up screw thread or back pressure rivet nut on the cushion, cushion and nut, independent mutually, the atress does not influence each other, the cushion can not rotate because of the nut atress, joint strength is higher to pressfitting generating line high strength moment of torsion installation has been realized. Generating line connection structure's cushion and nut all adopt the riveted structure, should press the riveting process can go on after the pressfitting generating line suppression is accomplished, need not to press the riveting to the metal sheet alone, production simple process, production efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic view of a laminated busbar according to the present invention;

fig. 2 shows a schematic view of a bus bar connection structure according to the present invention;

fig. 3 shows a cross-sectional view of the bus bar connection structure of the present invention;

fig. 4 shows a schematic view of a metal plate according to the present invention;

fig. 5 shows a schematic view of the spacer of the present invention.

In the figure, 1-metal polar plate, 2-first insulating layer, 3-through hole, 301-first through hole, 302-second through hole, 303-third through hole, 4-second insulating layer, 5-third insulating layer, 6-cushion block, 601-boss, 602-notch groove, 603-opening hole and 7-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the laminated bus bar of the present embodiment includes a metal plate 1 and a first insulating layer 2. In this embodiment, the metal plate 1 is provided with two layers, one layer is a positive bus bar, and the other layer is a negative bus bar. The first insulating layer 2 is arranged between the two layers of the metal polar plates 1, and the first insulating layer 2 and the two layers of the metal polar plates 1 are parallel to each other. In order to reduce the thickness of the laminated bus bar and improve the safety of the laminated bus bar, the first insulating layer 2 in this embodiment is provided as an insulating film. The two layers of metal polar plates 1 and the insulating film are pressed into a whole to form the pressed bus.

In order to facilitate the connection of the pressed bus with other electric devices or other buses, a through hole 3 is further formed in each layer of the metal polar plate 1, the through hole 3 is used for installing a connecting piece, and the connecting piece connects the pressed bus with other electric devices or buses. Specifically, the connecting piece can be a cushion block 6 and a nut 7, and the cushion block 6 and the nut 7 are respectively riveted with the metal pole plate 1. In this embodiment, the pressing bus is provided with a through hole 3 on the metal polar plate 1, and the cushion block 6 and the nut 7 are respectively installed on the metal polar plate 1 through the through hole 3. Compared with the prior art, the welding of the cushion block 6 and the metal polar plate 1 is avoided, and the situation that threads are arranged on the cushion block 6 or the back of the cushion block 6 is pressed and riveted is also avoided. Cushion 6 and nut 7 in this embodiment direct with metal polar plate 1 rivets to cushion 6 and nut 7 are independent each other, and the atress does not influence each other, and cushion 6 can not rotate because of the nut 7 atress, and joint strength is higher, thereby realizes the installation of generating line high strength moment of torsion, and generating line machining efficiency is high simultaneously.

In order to improve the safety performance of the laminated bus, a second insulating layer 4 and a third insulating layer 5 are respectively disposed on the first surface and the second surface of the laminated bus. Specifically, the second insulating layer 4 and the third insulating layer 5 are both insulating films and are all required to cover the first surface and the second surface of the laminated bus bar.

The laminated bus bar described in this embodiment is also used for being connected with other bus bars or electrical devices, and for example, this embodiment also discloses a bus bar connection structure.

Referring to fig. 2 and fig. 3, the bus bar connection structure of the present embodiment includes a cushion block 6, a nut 7, and the press-fit bus bar, where the cushion block 6 and the nut 7 are riveted to the press-fit bus bar respectively. In this embodiment, the cushion block 6 and the nut 7 both adopt a riveting structure, and the pressing and riveting process can be performed after the pressing of the press-fit bus is completed, so that the metal plate is not required to be pressed and riveted independently, the production process is simple, and the production efficiency is high.

Specifically, the bus connecting structure comprises two layers of metal polar plates 1, a first insulating layer 2, a cushion block 6 and nuts 7, wherein the first insulating layer 2 is arranged between the two layers of metal polar plates 1, and the two layers of metal polar plates 1 are parallel to the first insulating layer 2.

Referring to fig. 4, a through hole 3 is formed in the metal plate 1, and the through hole 3 includes a first through hole 301 and a second through hole 302. Wherein the first through holes 301 are arranged as strip-shaped holes, and the second through holes 302 are arranged as circular holes. The cushion block 6 is embedded into the first through hole 301 from the first surface of the metal pole plate 1, the nut 7 is riveted into the second through hole 302 from the second surface of the metal pole plate 1, the nut 7 and the cushion block 6 are independent from each other, stress is not affected with each other, the cushion block 6 cannot rotate due to stress of the nut 7, connection strength is high, and therefore torque strength of the bus connection structure is guaranteed.

The processing method of the bus connecting structure in the embodiment is as follows: firstly, two layers of the metal polar plates 1 and the first insulating layer 2 are stacked in sequence, then the metal polar plates 1 and the first insulating layer 2 are pressed into a whole, then the cushion blocks 6 are respectively embedded in the two layers of the metal polar plates 1 from the first surfaces of the metal polar plates 1, then the nuts 7 are pressed on the first surfaces of the metal polar plates 1, and the cushion blocks 6 and the nuts 7 are riveted on each layer of the metal polar plates 1.

In view of the fact that the bus connecting structure is formed by firstly laminating two layers of the metal polar plate 1 and the first insulating layer 2 into a whole, and then riveting the cushion block 6 and the nut 7, the metal polar plate 1 of the bus connecting structure is further provided with the third through hole 303, so that the cushion block 6 and the nut 7 can be conveniently installed on the metal polar plate 1 after lamination.

Referring to fig. 5, the specific structure of the pad 6 is as follows: the cushion block 6 is provided with a boss 601 and an opening 603, the opening 603 is used for mounting screws, and the number of the boss 601 and the opening 603 is at least 1. The specific connection mode of the cushion block 6 and the metal polar plate 1 is as follows: the boss 601 and the shape and the size of the first through hole 301 are matched, the boss 601 is embedded into the first through hole 301, the cushion block 6 is riveted with the metal pole plate 2, the cushion block 6 is prevented from rotating, and the cushion block 6 is fully contacted with the plane of the metal pole plate 2.

Specifically, for making cushion 6 and metal polar plate 1 inlay the effect more excellent, this embodiment boss 601 with the junction of cushion 6 still is equipped with breach groove 602, works as boss 601 embedding during metal polar plate 1, breach groove 602 can play the effect of regulation, guarantees cushion 6 and metal polar plate 1 fully contact, inlays more level and more smooth, and the impedance is minimum, and the current-carrying is more excellent, and then makes bus connection structure current-carrying is more excellent. Compared with the prior art, the bus connecting structure of the embodiment does not need to press a rivet nut on the cushion block, and therefore, the diameter of the opening 603 on the cushion block 6 can be set to be smaller than that of the second through hole 302, so that the carrying area of the cushion block 6 and the metal pole plate 1 is larger, and the performance of the bus connecting structure is optimized.

Specifically, the first insulating layer 2 is also provided with a third through hole 303, which facilitates installation of the bus bar connection structure.

Example 2

The present embodiment discloses a laminated bus, which has the same basic technical scheme as that of embodiment 1, and is different from embodiment 1 in that a metal plate 1 of the laminated bus is provided with three layers, so that the laminated bus of the present embodiment has a five-layer structure of stacking, and sequentially includes, from top to bottom, a metal plate 1, a first insulating layer 2, and a metal plate 1. The pressing bus in this embodiment is provided with three layers of metal pole plates, wherein the middle layer of metal pole plate 1 is shared and respectively matched with the metal pole plates 1 at the upper end and the lower end to form two pressing buses. The pressfitting generating line compact structure of this embodiment, occupation space is little, and applicable environment is more.

Specifically, in order to increase the insulating performance of the laminated bus and improve the safety performance of the laminated bus, a second insulating layer 4 and a third insulating layer 5 are respectively disposed on the first surface and the second surface of the laminated bus in this embodiment, specifically, the second insulating layer 4 and the third insulating layer 5 are both insulating films and are all required to cover the buses.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A pressed bus is characterized by comprising a metal polar plate (1),

the metal polar plates (1) are arranged into a plurality of layers, and a first insulating layer (2) is arranged between any adjacent metal polar plates (1);

each layer of metal polar plate (1) is provided with a through hole (3) for installing a connecting piece.

2. The laminated bus bar of claim 1, further comprising a second insulating layer (4), a third insulating layer (5);

the second insulating layer (4) and the third insulating layer (5) are respectively positioned on the first surface and the second surface of the pressed bus.

3. A laminated busbar according to claim 1 or 2, wherein said laminated busbar is formed using a lamination process.

4. A bus bar connecting structure comprising a connecting member and the laminated bus bar according to any one of claims 1 to 3,

the connecting piece comprises a cushion block (6) and a nut (7), wherein the cushion block (6) and the nut (7) are respectively riveted with the metal pole plate (1).

5. The bus bar connecting structure according to claim 4, wherein the through-hole (3) comprises a first through-hole (301);

the pad (6) is embedded into the first through hole (301) from the first surface of the metal pole plate (1).

6. The bus bar connecting structure according to claim 5, wherein a boss (601) is provided on the spacer (6), and the boss (601) is fitted in the first through hole (301).

7. The bus bar connecting structure according to claim 6, wherein a gap groove (602) is formed at the joint of the boss (601) and the spacer (6).

8. The bus bar connecting structure according to claim 5, wherein the through-hole (3) further comprises a second through-hole (302);

the nut (7) is press-riveted into the second through hole (302) from the second surface of the metal pole plate (1).

9. The bus bar connection structure according to claim 8, wherein the spacer (6) is provided with an opening (603), and the diameter of the opening (603) is smaller than the diameter of the second through hole (302).

10. The bus bar connection structure according to claim 8, wherein the through-hole (3) further comprises a third through-hole (303),

the cushion block (6) and the nut (7) penetrate through the third through hole (303) and are riveted with the metal pole plate (1).