CN114824972A

CN114824972A - Bus bar structure and power supply unit with same

Info

Publication number: CN114824972A
Application number: CN202210226085.XA
Authority: CN
Inventors: 黄联华
Original assignee: LEQING SWITCH FIFTH FACTORY
Current assignee: LEQING SWITCH FIFTH FACTORY
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-29
Anticipated expiration: 2042-03-08
Also published as: CN114824972B

Abstract

The invention relates to the bus bar related technical field, in particular to a bus bar structure and a power supply unit with the same, comprising: the inner side of the insulating frame is separated by a partition plate to form two accommodating grooves; the bus copper bar is arranged in the containing groove and is connected with the insulating frame through the bus copper bar stamping protruding point; and the end covers are detachably arranged on two sides of the insulating frame. The bus bar is novel in design, connected with the insulating frame through the bus bar stamping protruding points, connected without independent welding points of the copper bars, convenient to install, high in stability, material-saving, wide in application range and strong in practicability, and the bus bar can be combined and used at will according to different switches.

Description

Bus bar structure and power supply unit with same

Technical Field

The invention relates to the technical field of bus bars, in particular to a bus bar structure and a power supply unit with the same.

Background

Since semiconductors are capable of switching large currents quickly and frequently, the semiconductors need to be connected with capacitors with low inductance. Such a capacitor is also referred to as an intermediate circuit capacitor. In order to establish a low inductance connection, a bus bar is generally used. In this case, power converters for high power are usually configured with a side-by-side arrangement; semiconductor modules connected in parallel (also referred to simply as modules). In a typical connection geometry, the direct current interfaces (also referred to as DC +/DC-interfaces) are located side by side on one side of the module. For high dynamic switching semiconductor chips, small inductances in the module and in the external commutation circuit are of great importance. These modules offer the possibility of modularizing the converter construction to match the power requirements by means of parallel circuits or to match the required functions (different converter phases) by means of independent load connections.

Here, a high degree of current symmetry of the parallel-connected semiconductor modules is desirable, since the module with the highest load determines the performance of the parallel circuit. The performance of the modules should be as independent as possible from the load conditions of adjacent, independently operating modules. The pair of DC interfaces arranged side by side (i.e. the DC + and DC-interfaces) is usually in contact with a common intermediate circuit bus.

Current busbar generally adopts the independent solder joint of copper bar and is connected with insulating frame, and generally adopts two-layer wall, and the centre is hollow to cause the waste for current busbar cost is with high costs.

Disclosure of Invention

The present invention is directed to a bus bar structure and a power supply unit having the same, so as to solve the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a busbar structure comprising:

the inner side of the insulating frame is divided by a partition plate to form two or three accommodating grooves;

the two bus copper bars are arranged in the containing grooves and connected with the insulating frame through the bus copper bar stamping protruding points;

and the end covers are detachably arranged on two sides of the insulating frame.

As a further scheme of the invention: the inner wall of the accommodating groove far away from the opening of the insulating frame is provided with a trapezoidal groove parallel to the length direction of the insulating frame, the confluence copper bar is provided with a trapezoidal sliding block, and the trapezoidal sliding block is slidably mounted in the trapezoidal groove.

As a still further scheme of the invention: the trapezoidal sliding block and the bus copper bar are integrally formed.

As a still further scheme of the invention: insulating frame's one end integrated into one piece has the connecting block, the connecting block is "mountain" type structure setting, insulating frame's the other end is provided with the spread groove that is "mountain" type structure setting, two when insulating frame is adjacent to be connected, one on the insulating frame the connecting block is inserted and is put in another insulating frame in the spread groove.

As a still further scheme of the invention: one side or two sides of the insulating frame are provided with fixing components for fixing two adjacent insulating frames, each fixing component comprises a clamping groove formed in one end of the insulating frame and a sliding part slidably mounted at the other end of the insulating frame, and one end, far away from the clamping groove, of the sliding part is provided with clamping teeth matched with the clamping grooves;

the sliding piece is fixed on the insulating frame and used for sliding and guiding the sliding piece.

As a still further scheme of the invention: one side demountable installation that insulating frame kept away from its open position has the mounting panel, be provided with a plurality of mounting holes and/or card on the mounting panel and put the piece.

As a still further scheme of the invention: the clamping piece comprises a clamping block fixed in a placing groove arranged on the mounting plate, and the clamping block is connected with the end part of the placing groove through an elastic telescopic rod;

still be provided with the bar groove on the mounting panel, the bar groove runs through the up end of mounting panel and with the standing groove intercommunication, the bar inslot run through have with the fixed piece of stirring of elastic telescopic link.

A power supply unit includes the bus bar structure.

Compared with the prior art, the invention has the beneficial effects that: the bus bar is novel in design, connected with the insulating frame through the bus bar stamping protruding points, connected without independent welding points of the copper bars, convenient to install, high in stability, material-saving, wide in application range and strong in practicability, and the bus bar can be combined and used at will according to different switches.

Drawings

FIG. 1 is an isometric view of one embodiment of a buss bar construction.

FIG. 2 is a schematic diagram of an embodiment of a bus structure.

FIG. 3 is a side view of one embodiment of a buss bar construction.

Fig. 4 is a schematic structural diagram of a busbar bar in an embodiment of a busbar structure.

FIG. 5 is an isometric view of an insulating frame in one embodiment of a bus bar construction.

FIG. 6 is a schematic diagram of an embodiment of an insulating frame of a bus structure.

Fig. 7 is a schematic diagram of a card slot in an embodiment of a bus structure.

FIG. 8 is an isometric view of one embodiment of a buss bar construction.

FIG. 9 is a schematic diagram of an embodiment of a bus structure.

FIG. 10 is a schematic view of the connection between the latch and the elastic rod in an embodiment of the bus bar structure.

Fig. 11 is a schematic view illustrating a connection state between an insulating frame and a busbar bar according to another embodiment of the busbar structure.

In the figure: 1. an insulating frame; 2. a busbar; 3. a card slot; 4. a slider; 5. a stopper; 6. clamping teeth; 7. a trapezoidal groove; 8. a trapezoidal slider; 9. a partition plate; 10. connecting blocks; 11. connecting grooves; 12. mounting a plate; 13. a placement groove; 14. a clamping block; 15. an elastic telescopic rod; 16. a toggle piece.

Detailed Description

The technical scheme in the embodiment of the invention will be made clear below by combining the attached drawings in the embodiment of the invention; fully described, it is to be understood that the described embodiments are merely a few, but not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The term "vertical" as used herein; "horizontal"; "left"; the terms "right" and the like are used for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 4, in an embodiment of the present invention, a bus structure includes:

the insulating frame 1, the inside of the said insulating frame 1 is separated by the baffle 9, form two or three and hold the trough;

the two bus copper bars 2 are arranged in the containing grooves, and are connected with the insulating frame 1 through punched protruding points of the bus copper bars 2;

and the end covers are detachably arranged on two sides of the insulating frame 1.

Wherein, it can be understood that a plurality of connecting copper sheets are arranged on the bus bar copper bar 2, and the connecting copper sheets protrude out of the insulating frame 1 so as to facilitate connection.

It should be noted that, referring to fig. 1 and 11, when there are two receiving slots, the two busbar bars 2 are respectively disposed in the two receiving slots, and the connecting copper sheet of one of the busbar bars 2 is bent towards the other busbar bar 2, so that the connecting copper sheets of the two busbar bars 2 are positioned on the same plane, when three receiving grooves are provided, the collecting copper bar 2 is not placed in the receiving groove at the uppermost end, the collecting copper bar 2 is respectively placed in the two receiving grooves at the middle and the lower end, and the connecting copper sheet on the middle reflow copper bar 2 can be bent towards another bus bar 2 or away from another bus bar 2, when the copper busbar 2 is bent away from the other busbar 2, the accommodating groove at the uppermost end can provide a placing space for the bending of the connecting copper sheet, the copper sheet connector can be suitable for combined connection of various circuit breaker switches, and the wiring bar can meet the installation requirements of different positions or different heights of all copper sheets.

In the embodiment of the invention, the bus bar 2 is connected with the insulating frame 1 through the stamping protruding point of the bus bar, so that the connection through a separate welding point of the copper bar is not needed, the installation is convenient, the stability is high, the material is saved, the bus bar 2 can be randomly combined and used according to different switches, the application range is wide, and the practicability is strong.

Further, referring to fig. 3, a trapezoidal groove 7 parallel to the length direction of the insulating frame 1 is disposed on an inner wall of the receiving groove far away from the opening of the insulating frame 1, a trapezoidal slider 8 is disposed on the busbar 2, and the trapezoidal slider 8 is slidably mounted in the trapezoidal groove 7.

When installing, will converge copper bar 2 from insulating frame 1's tip and insert, trapezoidal slider 8 and trapezoidal groove 7 sliding connection this moment insert along insulating frame 1 length direction, and it is fixed after removing required position, trapezoidal slider 8 and trapezoidal spout 7 can ensure to converge the stability that copper bar 2 and insulating frame 1 are connected, especially carry out the position to the opening direction of copper bar 2 along insulating frame 1 that converges and prescribe a limit to.

Preferably, trapezoidal slider 8 with converge copper bar 2 integrated into one piece, trapezoidal slider 8 with converge copper bar 2 and all adopt the copper product to make to ensure to converge copper bar 2 effectively electrically conductive while, make to converge copper bar 2 and trapezoidal slider 8 and be connected stably.

Still further, please refer to fig. 1; 5 and 6, insulating frame 1's one end integrated into one piece has connecting block 10, connecting block 10 is "mountain" type structure setting, insulating frame 1's the other end is provided with the spread groove 11 that is "mountain" type structure setting, two when insulating frame 1 is adjacent to be connected, one on insulating frame 1 connecting block 10 is inserted and is put in another insulating frame 1 in the spread groove 11.

Make two insulation frame 1's connection through connecting block 10 and the spread groove 11 that sets up, when the required length of the required copper bar 2 that converges is longer, can connect two insulation frame 1 and use to can effectively improve the application scope of this structure, the practicality is strong.

Preferably, please refer to fig. 1; 2 and 7, a fixing component for fixing two adjacent insulating frames 1 is arranged on one side or two sides of each insulating frame 1, each fixing component comprises a clamping groove 3 arranged at one end of each insulating frame 1 and a sliding part 4 slidably mounted at the other end of each insulating frame 1, and a clamping tooth 6 matched with the clamping groove 3 is arranged at one end, far away from the clamping groove 3, of each sliding part 4; the sliding device further comprises a limiting piece 5 fixed on the insulating frame 1 and used for guiding the sliding piece 4 in a sliding mode.

After the connecting blocks 10 on two adjacent insulating frames 1 are inserted into the connecting grooves 11, the sliding part 4 is manually pushed, so that the latch 6 is clamped in the clamping groove 3 on the other insulating frame 1, the two insulating frames 1 are fixed, the stability after the two insulating frames 1 are connected is ensured, and the sliding part 4 can be ensured to slide on the insulating frame 1 through the arranged limiting part 5 without the separation phenomenon.

It should be noted that, in order to ensure the firmness after connection, the sliding member 4 is arranged in a U-shaped structure, two sides of the sliding member 4 penetrate through two limiting members 5 fixed on the insulating frame 1 and are respectively fixed with two oppositely arranged latch teeth 6, and correspondingly, two slots 3 are provided, so that two points are latched and placed, and the stability after latching and placing is improved.

In order to prevent the sliding part 4 from sliding randomly when the insulating frame 1 is used alone, the position of the sliding part 4 on two sides of the limiting part 5 is soaked and melted with the PP convex hemisphere, so that the sliding part 4 is limited, when the insulating frame is used, the sliding part 4 only needs to be pushed forcibly, and the PP convex hemisphere falls under the limiting effect of the limiting part 5, so that the sliding part 4 can slide relative to the limiting part 5.

As another embodiment of the present invention, referring to fig. 8-10, a mounting plate 12 is detachably mounted on a side of the insulating frame 1 away from the opening position, and a plurality of mounting holes and/or locking members are disposed on the mounting plate 12, so that the insulating frame 1 can be conveniently fixed to a specified position by the mounting plate 12, and it is ensured that the insulating frame 1 is not damaged when the insulating frame 1 is mounted.

The detachable connection mode can adopt a clamping or bolt fixing mode, and can be realized as long as the detachable requirement is met, the detachable connection mode is not specifically limited in the application, and when the mounting plate 12 is provided with the mounting hole, the detachable connection mode is mainly used for penetrating through the fixing bolt so as to fix the mounting plate 12 to a specified position.

Specifically, the clamping and placing piece comprises a clamping block 14 fixed in a placing groove 13 arranged on the mounting plate 12, and the clamping block 14 is connected with the end part of the placing groove 13 through an elastic telescopic rod 15; still be provided with the bar groove on the mounting panel 12, the bar groove runs through the up end of mounting panel 12 and communicate with standing groove 13, the bar inslot run through have with the fixed piece 16 that dials of elastic telescopic rod 15.

When being provided with the card on mounting panel 12 and putting the piece, need the collocation can put a complex card with the card and put the groove, if install mounting panel 12 on the wall body or when the block terminal is interior, need install the card on the wall body or in the block terminal and put the groove, when needs installation, directly press mounting panel 12 to assigned position department, fixture block 14 compresses elasticity telescopic link 15 under the effect of power this moment, when fixture block 14 submerges the card and puts the inslot, fixture block 14 resets under the effect of elasticity telescopic link 15, realize the card and put.

The poke rod 16 can actively drive the elastic telescopic rod 15 to shorten when being stressed, so that the clamping block 14 is separated from the clamping groove, and the mounting plate 12 and the whole body mounted on the mounting plate 12 are dismounted.

A power supply unit includes the bus bar structure.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A bus bar structure, comprising:

the inner side of the insulating frame (1) is divided by a partition plate (9) to form two or three containing grooves;

the two bus copper bars (2) are arranged in the containing groove, and are connected with the insulating frame (1) through stamping protruding points of the bus copper bars (2);

the end covers are detachably mounted on two sides of the insulating frame (1).

2. A busbar structure according to claim 1, wherein the inner wall of the receiving groove far from the opening of the insulating frame (1) is provided with a trapezoidal groove (7) parallel to the length direction of the insulating frame (1), the busbar (2) is provided with a trapezoidal sliding block (8), and the trapezoidal sliding block (8) is slidably mounted in the trapezoidal groove (7).

3. A busbar construction according to claim 2, wherein said trapezoidal slider (8) is formed integrally with said busbar (2).

4. The bus bar structure according to claim 1, wherein a connecting block (10) is integrally formed at one end of the insulating frame (1), the connecting block (10) is arranged in a mountain-shaped structure, a connecting groove (11) is arranged at the other end of the insulating frame (1) in a mountain-shaped structure, and when two insulating frames (1) are adjacently connected, the connecting block (10) on one insulating frame (1) is inserted into the connecting groove (11) of the other insulating frame (1).

5. The busbar structure according to claim 1, wherein one side or two sides of the insulating frame (1) are provided with fixing components for fixing two adjacent insulating frames (1), each fixing component comprises a clamping groove (3) arranged at one end of each insulating frame (1) and a sliding part (4) slidably mounted at the other end of each insulating frame (1), and one end, far away from the clamping groove (3), of each sliding part (4) is provided with a clamping tooth (6) matched with the clamping groove (3);

the sliding piece (4) is fixed on the insulating frame (1) and is used for sliding and guiding the sliding piece (5).

6. A bus bar structure according to claim 1, wherein a mounting plate (12) is detachably mounted on a side of the insulating frame (1) away from the opening position thereof, and a plurality of mounting holes and/or locking members are provided on the mounting plate (12).

7. A busbar structure according to claim 6, wherein the latching and releasing member comprises a latch (14) fixed in a placement groove (13) provided on the mounting plate (12), the latch (14) being connected to an end of the placement groove (13) by an elastic telescopic rod (15);

still be provided with the bar groove on mounting panel (12), the bar groove runs through the up end of mounting panel (12) and with standing groove (13) intercommunication, the bar inslot run through have with the fixed piece (16) of stirring of elastic telescopic link (15).

8. A power supply unit, characterized in that it comprises a bus bar structure according to any one of claims 1-7.