Copper bar connecting structure and die box

Abstract

The utility model discloses a copper bar connecting structure, which belongs to the technical field of electric power and comprises an input copper bar, a stacked busbar assembly and a switching bus assembly. The stacked busbar assembly is of a plate-shaped structure, the input copper bar is connected with one end connected with the stacked busbar assembly in a parallel mode, the switching bus assembly is connected with the side face of the other end of the stacked busbar assembly, and the switching bus assembly extends towards the side portion of the stacked busbar assembly. The utility model further discloses a mold box. The beneficial effects of the utility model are that the installation space is effectively saved, the assembly is simple and fast, the work efficiency is improved, the integration level of the circuit can be improved, and the maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of power electronics technology, and especially a kind of copper bar structure. BACKGROUND

[0002] Copper bar is also called copper busbar or copper busbar, which is a flat plate conductor made of copper, used for transmitting current and connecting electrical equipment in the circuit.

[0003] Copper bar is usually arranged in electric control cabinet, as the space in electric control cabinet is limited, in order to make copper bar can connect more electrical equipment, usually need to bend copper bar and arrange in electric control cabinet, or cut copper bar into multiple sections, each section is connected by wire, so that wiring is not convenient to arrange, too much space is occupied.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model, and should not be regarded as an acknowledgement or any form of suggestion that this information has been constructed as prior art known to those of ordinary skill in the art. SUMMARY

[0005] The technical problem to be solved by the utility model is how to solve the problem of too much space occupied and inconvenient wiring in the current copper bar arrangement.

[0006] The utility model solves the above technical problems by the following technical means:

[0007] The copper bar connecting structure comprises an input copper bar, a stacked busbar assembly and an adapter busbar assembly. The stacked busbar assembly is in a plate shape, the input copper bar is connected to one end of the stacked busbar assembly in parallel, the adapter busbar assembly is connected to the side of the other end of the stacked busbar assembly, and the adapter busbar assembly extends to the side of the stacked busbar assembly.

[0008] In the utility model, the stacked busbar assembly is arranged in a plate shape, which can be installed in the box and connected after being attached to the inner side of the box. The input copper bar and the stacked busbar assembly are connected in parallel and arranged vertically. The output end of the electric power is led to the side of the rear end face in the box through the extension of the adapter busbar assembly to the side of the stacked busbar assembly, and the equipment in the box is connected to the adapter busbar assembly. The copper bar connecting structure occupies the edge space of the box and is arranged vertically, which effectively saves the installation space, simplifies the assembly, improves the work efficiency, increases the integration of the circuit, and is convenient for maintenance and repair.

[0009] Preferably, the utility model further comprises an input insulating member, and the input copper bars connected to the positive and negative electrodes are connected to the same input insulating member.

[0010] The input insulation piece is fixedly connected to the end face of the box body to mainly realize creepage isolation; the input insulation piece also plays a reinforcing role to prevent the input end of the busbar assembly from being deformed due to improper force when the input line is connected.

[0011] Preferably, the busbar assembly comprises, in sequence, an inner insulation film, a positive sub-busbar, an intermediate insulation film, a negative sub-busbar and an outer insulation film.

[0012] Preferably, the busbar assembly further comprises a first isolation piece, the busbar assembly is provided with a through hole in the stacking direction, and the first isolation piece is connected in the through hole, and the first isolation piece is provided with a through mounting hole in the middle.

[0013] The busbar assembly can realize insulation of all parts except the output part, effectively improve the safety of installation, and save the space reserved for other insulation modes. Meanwhile, the busbar assembly is provided with a through hole in the middle, and an isolation piece is installed to isolate the fixing screw from the positive sub-busbar and the negative sub-busbar, so that plastic screws are not needed during installation, and the installation is simple and safe. Furthermore, the first isolation piece can also be provided with a mounting counterbore, so that the screw does not protrude from the surface during installation, and the avoiding space is reduced.

[0014] Preferably, the output end of the busbar assembly comprises a plurality of positive terminals and a plurality of negative terminals, the adapter bus assembly comprises a plurality of positive adapter copper bars and a plurality of negative adapter copper bars, the positive adapter copper bars are connected with the positive terminals, and the negative adapter copper bars are connected with the negative terminals.

[0015] Preferably, the adapter bus assembly further comprises an insulation sub, and the positive adapter copper bars and the negative adapter copper bars are arranged in parallel and at intervals, and adjacent positive adapter copper bars and negative adapter copper bars are connected and supported by the insulation sub.

[0016] Preferably, the adapter bus assembly further comprises a plurality of first lap positive copper bars and a plurality of first lap negative copper bars, the first lap positive copper bars are connected with the positive adapter copper bars, and the first lap negative copper bars are connected with the negative adapter copper bars.

[0017] Preferably, the adapter bus assembly further comprises a plurality of second lap positive copper bars and a plurality of second lap negative copper bars, the second lap positive copper bars are connected with the positive terminals, and the second lap negative copper bars are connected with the negative terminals.

[0018] The output end of the busbar assembly is a plurality of branches, the input adapter bus assembly is connected, and the input main power board assembly is connected through the lap copper bars (not limited to this lap), compared with the traditional wire connection mode, the wire connection path is effectively optimized, the occupied space is reduced, and more functional areas are left for the PCB board.

[0019] Preferably, the positive adapter copper bars and the negative adapter copper bars are both horizontally placed.

[0020] The positive adapter copper bar and the negative adapter copper bar are horizontally placed, and good heat dissipation can be achieved.

[0021] The utility model discloses a copper bar connecting structure, including box, above copper bar connecting structure, input copper bar is connected on the end face of box, and the female bar assembly and the adapter busbar assembly are located in the inside of box, and the female bar assembly is close to the side of box and is connected with it, and the adapter busbar assembly is located at the inside of the other end face of box.

[0022] The utility model discloses a copper bar connecting structure, including box, above copper bar connecting structure, input copper bar is connected on the end face of box, and the female bar assembly and the adapter busbar assembly are located in the inside of box, and the female bar assembly is close to the side of box and is connected with it, and the adapter busbar assembly is located at the inside of the other end face of box.

[0023] (1) the utility model discloses, set up female bar assembly to present the plate structure, can be installed in the box, and after being attached with the inside side of the box, connect, and input copper bar is connected with the female bar assembly in parallel, and all is arranged in vertical direction, and the output end of electricity is led to the one side of the rear end face in the box through the extension of adapter busbar assembly, and the equipment in the box is connected with adapter busbar assembly, and the whole copper bar connecting structure occupies the edge space of the box, and is arranged vertically, effectively saves the installation space, and the assembly is simple and fast, improves the efficiency of work, can improve the integration of circuit simultaneously, and is convenient for maintenance.

[0024] (2) input insulation piece is used for input copper bar fixed connection on the end face of box, mainly realizes creepage isolation, and input insulation piece also plays the role of reinforcement, prevents the deformation of female bar assembly input end when connecting input line due to improper force.

[0025] (3) the female bar assembly of the utility model can realize that all insulate except output part, effectively improve the safety of installation, and save the space reserved for other insulation mode, and the through hole is set up in the middle of female bar assembly, and the isolation sheet is installed, is used for isolating fixed screw and positive subrow and negative subrow, need not use plastic screw when installing, and the installation is simple and safe, and further, the first isolation sheet can also make installation counterbore, and the screw does not protrude the surface when installing, reduces the avoiding space.

[0026] (4) the output end of female bar assembly is multiple branch, and is connected with input adapter busbar assembly, and then is connected with input main power board assembly (not limited to this kind of lap joint) through lap joint copper bar, compared with traditional wire connection mode, effectively optimizes the wiring path, reduces the occupied space, and leaves the back way for more functional areas of PCB board.

[0027] (5) the positive adapter copper bar and the negative adapter copper bar are horizontally placed, and good heat dissipation can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the structure schematic diagram of copper bar connecting structure of the utility model embodiment.

[0029] Figure 2 is a schematic diagram of the input copper bar and the input insulating piece according to an embodiment of the present application;

[0030] Figure 3 is a structural schematic diagram of the input laminated busbar assembly according to an embodiment of the present application;

[0031] Figure 4 is an exploded view of the input laminated busbar assembly according to an embodiment of the present application;

[0032] Figure 5 is a schematic diagram of the first isolation sheet connection amplification according to an embodiment of the present application;

[0033] Figure 6 is a schematic diagram of the connection between the adapter busbar assembly and the laminated busbar assembly according to an embodiment of the present application;

[0034] Figure 7 is a schematic diagram of the adapter busbar assembly according to an embodiment of the present application;

[0035] Figure 8 is a top view of the mold box according to an embodiment of the present application;

[0036] Figure 9 is a perspective view of the mold box according to an embodiment of the present application;

[0037] Figure 10 is a sectional view of the mold box according to an embodiment of the present application;

[0038] Reference numerals in the drawings:

[0039] 1, input copper bar;

[0040] 2, input insulating piece;

[0041] 3, laminated busbar assembly; 31, positive sub-busbar; 32, negative sub-busbar; 33, intermediate insulating film; 34, first isolation sheet; 35, second isolation sheet; 36, inner layer insulating film; 37, outer layer insulating film;

[0042] 4, adapter busbar assembly; 41, upper insulator; 42, negative adapter copper bar; 43, positive adapter copper bar; 44, lower insulator; 45, first lap negative copper bar; 46, first lap positive copper bar; 47, second lap negative copper bar; 48, second lap positive copper bar;

[0043] 5, box body; 6, main power plate assembly; 7, air duct assembly; 8, output assembly; 9, fan. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] Example 1:

[0046] like Figure 1 As shown, the copper busbar connection structure includes an input copper busbar 1, an input insulating component 2, a stacked busbar assembly 3, and a transition busbar assembly 4. Two input copper busbars 1 are connected to one end of the stacked busbar assembly 3, and the transition busbar assembly 4 is connected to the other end of the stacked busbar assembly 3. The stacked busbar assembly 3 has a plate-like structure. The input copper busbars 1 are connected to one end of the stacked busbar assembly 3 in a parallel manner, and the transition busbar assembly 4 is connected to the side of the other end of the stacked busbar assembly 3. The transition busbar assembly 4 extends to the side of the stacked busbar assembly 3.

[0047] like Figure 2 As shown, two input copper busbars 1 are connected side-by-side, one above the other, and both are placed vertically to reduce installation space. The two input copper busbars 1 are connected to the positive and negative terminals respectively. Both input copper busbars 1 are connected to the same input insulator 2.

[0048] The input insulation component 2 is an integral structure, comprising two rectangular cavities. Input copper busbars 1 are fitted into these cavities, and the connection between the input copper busbars 1 and the input insulation component 2 is secured by screws on the side. The middle of the input insulation component 2 also includes an outwardly protruding stepped surface, which can fit snugly against the housing 5 and be connected by bolts. The input insulation component 2 primarily serves a reinforcing function, preventing deformation of the input end of the stacked busbar assembly 3 due to improper force during input line connection.

[0049] like Figure 3 , Figure 4 As shown, the stacked busbar assembly 3 includes a positive electrode sub-busbar 31, a negative electrode sub-busbar 32, an intermediate insulating film 33, a first insulating sheet 34, a second insulating sheet 35, an inner insulating film 36, and an outer insulating film 37. The stacked busbar assembly 3 is arranged parallel to the input copper busbar 1, with both placed with their larger surfaces as vertical planes. In this embodiment, the stacked busbar assembly 3 and the input copper busbar 1 are placed vertically on the side of the housing 5, which is also a prerequisite for vertical placement. In fact, it is only necessary for the stacked busbar assembly 3 and the input copper busbar 1 to be in contact with the side of the housing 5.

[0050] The stacked busbar assembly 3 has a plate-like structure and mainly consists of five layers, such as... Figure 4As shown, from top to bottom, the layers are: inner insulating film 36, positive electrode array 31, middle insulating film 33, negative electrode array 32, and outer insulating film 37. The middle insulating film 33 isolates and insulates the positive electrode array 31 from the negative electrode array 32. The outer insulating film 37 covers and insulates the outside of the positive electrode array 31, while the inner insulating film 36 covers and insulates the inside of the negative electrode array 32.

[0051] Three sets of first isolation plates 34 are arranged along the length of the stacked busbar assembly 3. Each first isolation plate 34 has a mounting hole in the center for mounting fixing bolts. Therefore, as... Figure 5 As shown, the first insulating plate 34 is used to isolate the fixing bolt from the positive electrode array 31 and the negative electrode array 32. The first insulating plate 34 can be composed of four insulating plates, all of which are annular structures with the same inner diameter. The outer diameter and thickness can be determined according to the thickness and inner diameter of other components. The diaphragm plate located outside the inner insulating film 36 and the outer insulating film 37 is larger in size. The first insulating plate 34 is an epoxy insulating plate, which eliminates the need for plastic screws during installation, making installation simple and safe. Furthermore, the epoxy insulating plate can also have countersunk holes for installation, so that the screws will not protrude from the surface during installation, reducing clearance space.

[0052] The output end of the stacked busbar assembly 3 also includes a second isolation plate 35, which is used to isolate the positive sub-busbar 31 and the negative sub-busbar 32.

[0053] Among them, the middle insulating film 33, the outer insulating film 37, and the inner insulating film 36 isolate the edge sealant, so that the surface of the copper busbar assembly is insulated except for the output part, which effectively improves the safety of installation and saves the space reserved for other insulation methods.

[0054] Both the positive electrode array 31 and the negative electrode array 32 are equipped with connecting terminals. The positive electrode array 31 needs to pass through the intermediate insulating film 33, the negative electrode array 32, and the outer insulating film 37. Therefore, clearance holes are provided on the intermediate insulating film 33 and the outer insulating film 37, while clearance notches are provided on the negative electrode array 32 to prevent the positive electrode array 31 and the negative electrode array 32 from contacting each other. The position of the clearance holes can be set according to the position of the connecting terminals.

[0055] In this embodiment, the stacked busbar assembly 3 can be directly fixed to the side plate of the housing 5 by fixing screws, which effectively saves installation space, and the assembly is simple and quick, improving work efficiency. At the same time, it can improve the integration of the circuit and facilitate maintenance.

[0056] like Figure 1 , Figure 6As shown, the stacked busbar assembly 3 is divided into two branches from top to bottom, and both branches are connected to the transfer busbar assembly 4. The transfer busbar assembly 4 includes two upper insulators 41, two negative transfer copper bars 42, two positive transfer copper bars 43, and two lower insulators 44. The negative transfer copper bars 42 and the positive transfer copper bars 43 are connected to the negative and positive terminals of the stacked busbar assembly 3, respectively. From top to bottom, they are the positive transfer copper bar 43, the upper insulator 41, the negative transfer copper bar 42, the lower insulator 44, the positive transfer copper bar 43, the upper insulator 41, the negative transfer copper bar 42, and the lower insulator 44. The positive transfer copper bar 43 and the negative transfer copper bar 42 are connected by the upper insulator 41 and the lower insulator 44, which play the role of insulation and fixation.

[0057] The output end of the stacked busbar assembly 3 is divided into two branches from top to bottom, and is connected to the transfer busbar assembly 4. Compared with the traditional wire connection method, the connection path is effectively optimized, the occupied space is reduced, and more functional areas are left for the PCB board

[0058] The transfer busbar assembly 4 is arranged approximately vertically with the stacked busbar assembly 3, and the negative transfer copper bar 42 and the positive transfer copper bar 43 are arranged horizontally, which facilitates heat dissipation.

[0059] In this embodiment, the stacked busbar assembly 3 is used at the input front end of the copper bar connection structure. The stacked busbar assembly 3 realizes isolation of the positive and negative terminals. The stacked busbar assembly 3 is in the form of a plate and can be directly fixed to the side plate of the box 5. The entire copper bar connection structure occupies the edge space of the box 5, effectively saving installation space, and the assembly is simple and fast, improving work efficiency and circuit integration, and facilitating maintenance and maintenance. The transfer busbar assembly 4 uses a copper bar and insulator lapping method to transfer the input end to the main power board assembly 6 in two ways. The transfer busbar assembly 4 is wound to the rear end of the box 5 and is close to the fan 9. The copper bar is laid flat, which facilitates air guiding and heat dissipation.

[0060] Embodiment Two:

[0061] As shown in Figure 1 , Figure 7 Based on the above embodiment one, the transfer busbar assembly 4 further includes a first lapping negative copper bar 45, a first lapping positive copper bar 46, a second lapping negative copper bar 47, and a second lapping positive copper bar 48.

[0062] The first lapping negative copper bar 45 and the first lapping positive copper bar 46 are connected to the negative transfer copper bar 42 and the positive transfer copper bar 43, respectively. The second lapping negative copper bar 47 and the second lapping positive copper bar 48 are directly connected to the connection terminals of the output end of the stacked busbar assembly 3.

[0063] In the horizontal direction, the first lapping negative copper bar 45 and the first lapping positive copper bar 46 are arranged vertically with the negative transfer copper bar 42 and the positive transfer copper bar 43, respectively.

[0064] The other ends of the first negative copper busbar 45, the first positive copper busbar 46, the second negative copper busbar 47, and the second positive copper busbar 48 are connected to the main power board assembly 6 to achieve electrical conduction connection.

[0065] The output of the stacked busbar assembly 3 has multiple branches, which connect to the input adapter busbar assembly 4, and then connect to the input main power board assembly 6 (not limited to this type of connection) through the overlapping copper busbar. Compared with the traditional wire wiring method, it effectively optimizes the wiring path, reduces the space occupied, and leaves room for more functional areas on the PCB board.

[0066] Example 3:

[0067] like Figure 8 As shown, the module includes a housing 5, a main power board assembly 6, an air duct assembly 7, an output assembly 8, and a fan 9;

[0068] Combination Figure 9 , Figure 10 As shown, the input copper busbar 1 is connected to the left end face of the enclosure 5 via the input insulator 2. The stacked busbar assembly 3 is placed vertically, close to the side of the enclosure 5. The first isolation plate 34 has a mounting hole in the middle. The fixing bolt passes through the mounting hole to connect the stacked busbar assembly 3 to the enclosure 5, realizing high current input and saving wiring space. The stacked busbar assembly 3 extends to the rear end of the enclosure 5, and the transition busbar assembly 4 is connected to the main power board assembly 6 and the air duct assembly 7 to realize power supply. The air duct assembly 7 is connected to the main power board assembly 6, and the other side of the main power board assembly 6 is electrically connected to the output assembly 8.

[0069] The current is divided into upper and lower paths and is output through the main power board assembly 6, the air duct assembly 7, and the output assembly 8.

[0070] Fan 9 is installed on the rear end plate of housing 5 for heat dissipation.

[0071] This embodiment is not limited to the specific equipment and connection methods inside the enclosure 5. The copper busbar connection structure of this embodiment can be adapted to various enclosures 5.

[0072] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A copper bar connection structure characterized by, The copper bar connecting structure comprises an input copper bar, a stacked busbar assembly and a busbar adapter assembly.

2. The copper bar connection structure according to claim 1, characterized by The input copper bars connected to the positive and negative electrodes are connected to the same input insulating member.

3. The copper bar connection structure according to claim 1, characterized by The stacked busbar assembly comprises a positive sub-bar, an intermediate insulating film, a negative sub-bar and an outer insulating film.

4. The copper bar connection structure according to claim 3, characterized by The stacked busbar assembly further comprises a first isolation sheet, and the stacked busbar assembly is provided with a through hole in the stacking direction, and the first isolation sheet is connected in the through hole.

5. The copper bar connection structure according to claim 1, characterized by The output end of the stacked busbar assembly comprises a plurality of positive terminals and a plurality of negative terminals, and the busbar adapter assembly comprises a plurality of positive adapter copper bars and a plurality of negative adapter copper bars.

6. The copper bar connection structure according to claim 5, characterized by The positive adapter copper bars and the negative adapter copper bars are arranged in parallel and at intervals, and adjacent positive adapter copper bars and negative adapter copper bars are connected by the insulating sub.

7. The copper bar connection structure according to claim 5, characterized by The busbar adapter assembly further comprises a plurality of first lap positive copper bars and a plurality of first lap negative copper bars.

8. The copper bar connection structure according to claim 5, characterized by The busbar adapter assembly further comprises a plurality of second lap positive copper bars and a plurality of second lap negative copper bars.

9. The copper bar connection structure according to claim 5, characterized by The positive adapter copper bars and the negative adapter copper bars are horizontally placed.

10. A mold box characterized by, The copper bar connecting structure comprises a box body and the copper bar connecting structure according to any one of claims 1-8, and the input copper bar is connected to the end face of the box body.

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