CN115765435A - Programmable direct-current power supply internal module parallel copper bar - Google Patents

Abstract

The invention discloses a programmable direct-current power supply internal module parallel copper bar, which comprises 1 module positive bus bar 21, 1 module negative bus bar 22, 4 connecting bars 26, 1 switching PCB 25, 4 output copper bars 24, 1 copper bar protective sleeve II 23 and 1 copper bar protective sleeve I41; the module positive bus bar 21 is connected with each module positive pole, the module negative bus bar 22 is connected with each module negative pole, the connecting bar 26 is connected with each module positive and negative poles and the module positive bus bar 21 and the module negative bus bar 22, the connection between the switching PCB 25 and the modules, the module positive bus bar 21, the module negative bus bar 22 and the output copper bar 24, and the copper bar protective sleeve two 23 and the copper bar protective sleeve one 41 are assembled with the output copper bar 24 and the switching PCB to form an output copper bar assembly. The copper bar is used for replacing a lead, and a parallel copper bar connection scheme is adopted, so that the device is small in occupied space, simple in process, convenient to assemble, safe, reliable and capable of effectively meeting the function.

Description

Programmable direct-current power supply internal module parallel copper bar

Technical Field

The invention relates to power supply equipment, in particular to a programmable direct-current power supply internal module parallel copper bar.

Background

The high-power programmable direct-current power supply is internally provided with 3 modules, and the electrical performance requirements of the whole machine can be realized through the parallel connection of the 3 modules.

In the prior art, the modules are connected in parallel mainly through the connection of wires.

However, the usable space at the rear part of the high-power programmable direct-current power supply is seriously insufficient, the output current of a single module is large, the space is difficult to meet the requirement due to the connection of wires, the wires cannot be bound, the wiring disorder is easily caused, part of air outlets are blocked, and the process requirement is relatively high.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a parallel copper bar for internal modules of a programmable direct-current power supply, which aims to solve the technical problems in the prior art.

The purpose of the invention is realized by the following technical scheme:

the invention relates to a programmable direct-current power supply internal module parallel copper bar, which comprises 1 module positive bus bar 21, 1 module negative bus bar 22, 4 connecting bars 26, 1 switching PCB (printed circuit board) 25, 4 output copper bars 24, 1 copper bar protective sleeve II 23 and 1 copper bar protective sleeve I41;

the module positive bus bar 21 is connected with the anodes of all the modules, the middle part of the module positive bus bar is 71mm long and 10mm wide, 4 through holes 6 with the diameter phi of 4.5 are formed in the middle part of the module positive bus bar, two ends of the middle part of the module positive bus bar are respectively provided with a 90-degree bend, the bent copper bar is changed from a vertical state to a horizontal state and extends towards two sides, two long circular through holes 7 with the diameter of 3.5 multiplied by 5 are formed in the two ends of the copper bar respectively, and a positive pole mark 8 is carved on the copper bar;

the through hole 6 with the diameter phi of 4.5 is connected with the switching PCB 25;

the two 3.5 × 5 oblong through holes 7 are connected to the connecting row 26.

Compared with the prior art, the programmable direct current power supply provided by the invention has the advantages that the internal modules are connected with the copper bars in parallel, the copper bars are used for replacing conducting wires, and the parallel copper bar connection scheme is adopted, so that the occupied space is small, the process is simple, and the assembly is convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of a module parallel copper bar scheme provided in an embodiment of the present invention;

FIGS. 2-1, 2-2, and 2-3 are respectively a diagram of a connection row structure, an assembly partial schematic diagram, and an assembly overall schematic diagram;

FIGS. 3-1 and 3-2 are a block diagram and an assembly diagram of the negative bus bar, respectively;

FIGS. 4-1 and 4-2 are schematic views of a modular positive bus bar structure and an assembly diagram, respectively;

FIGS. 5-1 and 5-2 are schematic diagrams of the axial and plane structures of the output copper bar, respectively;

FIG. 5-3 is a schematic view of a second plane structure of the copper bar protective sleeve;

FIGS. 5-4 and 5-5 are schematic axial and plane views of the assembly of the output copper bar and the copper bar protective sleeve, respectively;

6-1, 6-2, and 6-3 are schematic diagrams of front and back structure diagrams of the through PCB and the assembly of the through PCB and the output copper bar, respectively;

FIG. 7-1 is a schematic view of the assembly of the output copper bar assembly with the modular negative bus bar;

FIG. 7-2 is a schematic view of a modular positive bus bar and module assembly;

fig. 8-1 and fig. 8-2 are a structural diagram of the copper bar protective sheath and an assembly diagram thereof, respectively.

In the figure:

1. m3, 2, 3.5 × 5 oblong through holes, 3, 4.5 diameter by 4.5 through holes, 4, 3.5 × 5 oblong through holes, 5, "-" pole designation, 6, 4.5 diameter by 4.5 through holes, 7, 3.5 × 5 oblong through holes, 8, "+" pole designation, 9, M4 threaded holes, 10, 3.5 diameter through holes, 11, rectangular through holes, 12, 2.5 diameter blind holes, 13, metal through holes, 14, 4.5 diameter through holes, 18, 3.5 diameter through holes, 19, rectangular through holes, 19, 20, 3.5 diameter through holes;

21. the module positive bus bar 22, the module negative bus bar 23, the copper bar protective sleeves II, 24, the output copper bar 25, the switching PCT board 26, the connecting bar 27, the module positive bus bar 28, the module negative bus bar 29, the cross groove three-combination screws M3X8, 30, the cross groove three-combination screws M3X12, 31, the cross groove three-combination screws M3X12, 32, the cross groove pan head combination screws M3X 10, 33, the square nuts M3, 34, the front copper-clad area (-), 35, the front copper-clad area (+), 36, the back copper-clad area (+), 37, the back copper-clad area (-), 38, the cross groove pan head combination screws M4X10, 39, the cross groove three-combination screws M4X10, 40, the cross groove three-combination screws M3X8, 41, the copper bar protective sleeves I, 42, the metal panel, 43 and the cross pan head self-tapping screw ST 2.9X 13.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below by combining the attached drawings in the embodiment of the invention; it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended to limit the invention to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, step, process, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article, etc.) that is not specifically recited, should be interpreted to include not only the specifically recited feature but also other features not specifically recited and known in the art.

The term "consisting of 823070 \8230composition" means to exclude any technical characteristic elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the usual impurities associated therewith which do not include the technical features other than those explicitly listed. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not meant to imply or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and therefore are not to be construed as limiting herein.

Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to a person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.

The programmable direct-current power supply internal module parallel copper bar comprises 1 module positive bus bar 21, 1 module negative bus bar 22, 4 connecting bars 26, 1 switching PCB 25, 4 output copper bars 24, 1 copper bar protective sleeve II 23 and 1 copper bar protective sleeve I41;

the module positive bus bar 21 is connected with the anodes of the modules, the middle part of the module positive bus bar is 71mm long and 10mm wide, 4 through holes 6 with the diameter phi of 4.5 are arranged on the module positive bus bar, two ends of the middle part of the module positive bus bar are respectively provided with a 90-degree bend, the copper bar is changed from a vertical state to a horizontal state after being bent and extends towards two sides, two long round through holes 7 with the diameter of 3.5 multiplied by 5 are respectively arranged at two ends of the copper bar, and a plus pole mark 8 is carved on the copper bar;

the through hole 6 with the diameter phi of 4.5 is connected with the switching PCB 25;

the two 3.5 × 5 oblong through holes 7 are connected with the connecting row 26.

The module negative bus bar 22 is connected with the cathodes of all the modules, the middle part of the module negative bus bar is 71mm long and 10mm wide, 4 through holes 3 with the diameter phi of 4.5 are formed in the upper surface of the module negative bus bar, two ends of the middle part of the module negative bus bar are respectively provided with a 90-degree bend, the bent copper bar is changed from a vertical state to a horizontal state and extends towards two sides, two long circular through holes 4 with the diameter of 3.5 multiplied by 5 are formed in the two ends of the copper bar respectively, and a negative pole mark 5 is carved on the copper bar;

the through hole 3 with the diameter phi of 4.5 is connected with the switching PCB 25;

the 2 oblong through holes 7 of 3.5 × 5 are connected with the connecting row 26.

The connecting bar 26 is connected with the module positive and negative electrodes, the module positive bus bar 21 and the module negative bus bar 22, 4 long round through holes 2 with the size of 3.5 multiplied by 5 and 2 threaded holes 1 with the size of M3 are formed in the connecting bar 26;

the 4 long round through holes 2 with the length of 3.5 multiplied by 5 are connected with the module;

the 2M 3 threaded holes 1 are connected with a module positive bus bar 21 and a module negative bus bar 22.

The through PCB board 25 is connected with the modules, the module positive bus bar 21, the module negative bus bar 22 and the output copper bar 24, the through PCB board 25 is provided with 16 through holes 14 with the diameter phi of 4.5 which are arranged in groups, and 8 through holes 18 with the diameter phi of 3.5 which are arranged in groups;

the adapter PCB 25 is divided into a positive part and a negative part, the middle of the adapter PCB is separated, the positive side and the negative side of each part are coated with copper, and the middle of each part is connected through a metal through hole 13;

the front surface of the switching PCB 25 is respectively connected with the positive side and the negative side of an output copper bar 24 in a fitting manner through 8 through holes 14 with the diameter phi of 4.5;

the reverse side of the transfer PCB 25 is connected with the module positive busbar 21 in an attaching way through the other 4 through holes 14 with the diameter phi 4.5;

the reverse surface of the switching PCB 25 is attached and connected with the module negative bus bar 22 through the other 4 through holes 14 with the diameter phi 4.5;

the lower part of the through PCB board 25 is connected with the positive pole and the negative pole of the module through 8 through holes 18 with the diameter phi of 3.5.

The output copper bar 24 is connected with the output of the power supply equipment, and 8M 4 threaded holes 9 are formed in the copper bar and are arranged in groups;

the output copper bar 24 has a common structure of positive and negative poles, wherein 2 of the output copper bars are positive in one group, and 2 of the output copper bars are negative in one group;

and the threaded holes 9 of the M4 are connected with the module positive bus bar 21, the module negative bus bar 22 and the adapter PCB 25.

Copper bar protective sheath two 23 and copper bar protective sheath one 41 and output copper bar 24, switching PCB equipment form the output copper bar subassembly together, the fixed output copper bar 24 of copper bar protective sheath two 23, copper bar protective sheath one 41 is fixed copper bar protective sheath two 23, output copper bar 24 on metal decking 42.

In conclusion, the programmable direct current power supply provided by the embodiment of the invention has the advantages that the internal modules are connected with the copper bars in parallel, the copper bars are used for replacing the conducting wires, and the parallel copper bar connection scheme is adopted, so that the occupied space is small, the process is simple, and the assembly is convenient;

the copper bar has the advantages of reasonable design, convenience in installation, safety, reliability, small occupied space and simple structure on the basis of effectively meeting the function.

In order to more clearly show the technical solutions and effects provided by the present invention, the following detailed descriptions of the embodiments of the present invention are provided by specific embodiments.

The copper bar connection scheme is divided into six parts: positive busbar of module (1), negative busbar of module (1), connecting bar (4), switching PCB board (1), output copper bar (4), copper bar protective sheath two (1), copper bar protective sheath one (1), the complete set uses.

1. Module positive busbar:

connections for the anodes of the respective modules; the middle part of the module positive busbar is 71mm long and 10mm wide, and 4 through holes with the diameter phi of 4.5 are formed in the middle part of the module positive busbar; two ends of the middle part are respectively bent by 90 degrees, and the copper bar is changed from a vertical state to a horizontal state after being bent and extends towards two sides; two long round through holes of 3.5 multiplied by 5 are respectively arranged at two ends of the front row of the module; for the convenience of identification, a + pole mark is carved on the copper bar.

The through hole with the diameter phi of 4.5 is used for being connected with the switching PCB;

the two 3.5 multiplied by 5 oblong through holes are used for connecting with the connecting row.

2. Module negative bus bar:

connections for the negative poles of the respective modules; the middle part of the module negative bus bar is 71mm long and 10mm wide, and 4 through holes with the diameter phi of 4.5 are arranged on the middle part of the module negative bus bar; two ends of the middle part are respectively bent by 90 degrees, and the copper bar is changed from a vertical state to a horizontal state after being bent and extends towards two sides; two long round through holes of 3.5 multiplied by 5 are respectively arranged at two ends of the front row of the module; for convenient identification, a negative pole mark is carved on the copper bar.

The through hole with the diameter phi of 4.5 is used for being connected with the switching PCB;

the 2 long round through holes with the length of 3.5 multiplied by 5 are used for being connected with the connecting row.

3. Connecting row

The module positive bus bar and the module negative bus bar are connected with the positive electrodes and the negative electrodes of the modules; the connecting row is provided with 4 long round through holes with the size of 3.5 multiplied by 5 and 2 threaded holes with the size of M3.

The 4 long round through holes with the length of 3.5 multiplied by 5 are used for connecting with the module;

and the 2M 3 threaded holes are used for being connected with the module positive bus bar and the module negative bus bar respectively.

4. Switching PCB board

The module positive bus bar is used for connecting the module, the module negative bus bar and the output copper bar; the adapter PCB is provided with 16 through holes with the diameter phi of 4.5, and the through holes are arranged in groups; the switching PCB board has 8 through holes with diameter phi of 3.5, which are arranged in groups

The switching PCB is divided into a positive part and a negative part, and the positive part and the negative part are spaced apart from each other; copper is coated on the front surface and the back surface of each part, and the two parts are connected through a metal through hole;

the front surface of the switching PCB is respectively connected with the positive side and the negative side of the output copper bar in a fitting manner through 8 through holes with the diameter phi 4.5;

the reverse side of the switching PCB is connected with the module positive busbar in an attaching mode through 4 through holes with the diameter phi 4.5;

the reverse side of the switching PCB is connected with the module negative bus bar in an attaching mode through 4 through holes with the diameter phi of 4.5;

the lower part of the switching PCB is connected with the positive pole and the negative pole of the module through 8 through holes with the diameter phi of 3.5; .

5. Output copper bar

An output for a power supply device; the copper bar is provided with 8M 4 threaded holes which are arranged in groups.

The positive and negative of the output copper bar are universal, one group of 2 output copper bars is positive, and one group of 2 output copper bars is negative;

and the threaded holes of the M4 are used for connecting the module positive bus bar, the module negative bus bar and the switching PCB.

6. Copper bar protective sleeve 2

The fixing and insulation device is used for fixing and insulating the output copper bar; and the output copper bar and the switching PCB are assembled together to form an output copper bar assembly which is used in a set.

Copper bar protective sheath two comprises copper bar protective sheath two and copper bar protective sheath one, and copper bar protective sheath two is used for fixed output copper bar, and copper bar protective sheath one is used for fixing both above-mentioned outputs on metal panel.

Example 1

As shown in fig. 1 to 8-2:

the module parallel copper bar scheme is divided into six parts: positive busbar of module (1), negative busbar of module (1), connecting bar (4), switching PCB board (1), output copper bar (4), copper bar protective sheath two (1), copper bar protective sheath one (1), the use of complete set, as shown in fig. 1.

The connecting bar is provided with 2M 3 threaded through holes 1 which can be connected with the module positive bus bar and the module negative bus bar; 4 oblong through holes 2 of 3.5X 5 in the connecting row can be combined with the positive and negative connections of the module by 4M 3X8 cross disk heads, as shown in figure 2-2.

The module negative bus bar is provided with 4 through holes 3 with the diameter phi of 4.5 and used for being connected with the output copper bar assembly; 4 long round through holes 4 of 3.5 × 5 on the module negative bus bar can be connected with the connecting bar by 4 cross pan head combination nails of M3 × 12, as shown in FIG. 3-2; for the convenience of identification, a negative pole mark 5 is carved on the copper bar.

The module positive busbar is provided with 4 through holes 6 with the diameter phi of 4.5 and used for being connected with the output copper bar assembly; 4 long round through holes 7 of 3.5 × 5 on the module negative bus bar can be connected with the connecting bar by 4 crossed pan head combination nails of M3 × 12, as shown in FIG. 4-2; for the convenience of identification, a + pole mark 8 is carved on the copper bar.

The output copper bar is provided with 8M 4 threaded holes 9 which are arranged in groups and used for connecting the module positive bus bar, the module negative bus bar and the transfer PCB; the output copper bar is provided with 2 through holes 10 with the diameter phi of 3.5, and the through holes are used for fixing the output copper bar and a copper bar protective sleeve II.

2 rectangular through holes 11 are formed in the second output copper bar protective sleeve and used for the output copper bars to penetrate out; the second output copper bar protective sleeve is provided with 8 blind holes 12 with the diameter phi of 2.5 for connecting the first output copper bar protective sleeve.

Two output copper bars are in a group, after the holes 11 are formed, the through holes 10 in the output copper bars are penetrated through by 2 cross-recessed pan head combination nails, and then the output copper bars are clamped with the second output copper bar protective sleeve by the square nuts of M3, so that the output copper bars and the second output copper bar protective sleeve are fixed, as shown in figures 5-5.

The switching PCB is divided into a positive part and a negative part, and the positive part and the negative part are spaced; copper is coated on the front side and the back side of each part, and the two sides are connected through a metal through hole 13; the front surface of the switching PCB is connected with the output copper bar in a fitting manner; the adapter PCB is provided with 16 through holes with the diameter phi of 4.5, and the through holes are arranged in groups; wherein 4 through holes 14 with the diameter phi of 4.5 can be positively connected with an output copper bar by 4M 4X10 cross-shaped groove pan head combination nails; 4 through holes 15 with the diameter phi of 4.5 can be negatively connected with an output copper bar by 4M 4X10 cross-shaped groove pan head combination nails, as shown in figure 6-3.

The reverse side of the switching PCB is attached to the module negative bus bar and the module positive bus bar; 4 through holes 16 with the diameter phi of 4.5 on the transfer PCB can be connected with the module positive bus bar by 4M 4X10 cross-slot pan head combination nails; 4 through holes 17 with diameter phi 4.5 on the adapter PCB can be connected with the module negative bus bar by 4M 4X10 cross-slot pan head combination nails, as shown in FIG. 7-1.

The reverse side of the switching PCB is jointed and connected with the module; 8 through holes 18 with the diameter phi of 3.5 on the transfer PCB can be respectively connected with the positive and negative of the module by 8M 3X8 cross-slot pan head combination nails, as shown in figure 7-2.

2 rectangular through holes 19 are formed in the first output copper bar protective sleeve and used for the output copper bars to penetrate out; the first output copper bar protective sleeve is provided with 8 through holes 20 with the diameter phi of 3.5, and the through holes are used for fixing the first output copper bar protective sleeve.

And (3) installing a metal panel, and connecting the first copper bar protective sleeve and the second copper bar protective sleeve by using 8 cross-shaped pan head tapping screws ST2.9-13 as shown in a figure 8-2.

The module parallel copper bar scheme has the advantages of simple structure, convenience in assembly and disassembly, good manufacturability, and neatness and attractiveness. Both satisfied power module's the parallelly connected function of electricity, also saved the space, made the inside high density of having realized the device of power put, reduced the whole volume of equipment, and then promoted the space utilization of standard subrack. Meanwhile, the good manufacturability also enables the assembly efficiency of the whole machine to be improved, the working time is saved, and the production and manufacturing cost of products is further reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (6)

1. A programmable direct-current power supply internal module parallel copper bar is characterized by comprising 1 module positive bus bar (21), 1 module negative bus bar (22), 4 connecting bars (26), 1 switching PCB (25), 4 output copper bars (24), 1 copper bar protective sleeve II (23) and 1 copper bar protective sleeve I (41);

the module positive bus bar (21) is connected with the anodes of all the modules, the middle part of the module positive bus bar is 71mm long and 10mm wide, 4 through holes (6) with the diameter phi of 4.5 are formed in the middle part of the module positive bus bar, two ends of the middle part of the module positive bus bar are respectively bent for 90 degrees, the bent copper bar is changed from a vertical state into a horizontal state and extends towards two sides, two long round through holes (7) with the diameter of 3.5 multiplied by 5 are respectively formed in the two ends of the copper bar, and a positive pole mark (8) is carved on the copper bar;

the through hole (6) with the diameter phi of 4.5 is connected with the transfer PCB (25);

the two 3.5 x 5 long round through holes (7) are connected with the connecting row (26).

2. The programmable direct current power supply internal module parallel copper bar as claimed in claim 1, wherein the module negative bus bar (22) is connected with each module negative electrode, the middle part is 71mm long and 10mm wide, and is provided with 4 through holes (3) with the diameter phi of 4.5, two ends of the middle part are respectively provided with a 90-degree bend, the copper bar is changed from a vertical state to a horizontal state after being bent and extends towards two sides, two long round through holes (4) with the diameter phi of 3.5 x 5 are respectively arranged at two ends, and a '-' pole mark (5) is carved on the copper bar;

the through hole (3) with the diameter phi of 4.5 is connected with the switching PCB (25);

the 2 oblong through holes (7) with the length of 3.5 multiplied by 5 are connected with the connecting row (26).

3. The programmable direct current power supply internal module parallel copper bar as claimed in claim 2, wherein the connecting bar (26) is connected with each module positive and negative electrodes, the module positive bus bar (21) and the module negative bus bar (22), and 4 3.5 x 5 long round through holes (2) and 2M 3 threaded holes (1) are formed in the connecting bar (26);

the 4 long round through holes (2) with the length of 3.5 multiplied by 5 are connected with the module;

the 2M 3 threaded holes (1) are connected with a module positive busbar (21) and a module negative busbar (22).

4. The programmable DC power supply internal module parallel copper bar of claim 3, wherein the connection between the adaptor PCB (25) and the modules, module positive bus bar (21), module negative bus bar (22) and output copper bar (24), the adaptor PCB (25) having 16 through holes (14) with diameter phi 4.5 arranged in groups, 8 through holes (18) with diameter phi 3.5 arranged in groups;

the transfer PCB (25) is divided into a positive part and a negative part, the middle of the positive part and the negative part are separated, the positive surface and the negative surface of each part are coated with copper, and the middle of each part is connected through a metal through hole (13);

the front surface of the switching PCB (25) is respectively connected with the positive side and the negative side of an output copper bar (24) in a bonding way through 8 through holes (14) with the diameter phi of 4.5;

the reverse side of the switching PCB (25) is connected with the module positive busbar 21 in an attaching way through the other 4 through holes (14) with the diameter phi 4.5;

the reverse side of the switching PCB (25) is attached and connected with the module negative bus bar (22) through the other 4 through holes (14) with the diameter phi of 4.5;

the lower part of the switching PCB (25) is connected with the positive pole and the negative pole of the module through 8 through holes (18) with the diameter phi of 3.5.

5. The programmable direct current power supply internal module parallel copper bar according to claim 4, wherein the output copper bar (24) is connected with the output of a power supply device, 8M 4 threaded holes (9) are arranged on the copper bar in groups;

the positive and negative electrodes of the output copper bar (24) are of a universal structure, wherein 2 of the output copper bar are positive in one group, and 2 of the output copper bar are negative in one group;

and the threaded holes (9) of the M4 are connected with the module positive bus bar (21), the module negative bus bar (22) and the adapter PCB (25).

6. The programmable direct current power supply internal module parallel copper bar according to claim 5, wherein the second copper bar protective sleeve (23) and the first copper bar protective sleeve (41) are assembled with the output copper bar (24) and the switching PCB to form an output copper bar assembly, the output copper bar (24) is fixed by the second copper bar protective sleeve (23), and the second copper bar protective sleeve (23) and the output copper bar (24) are fixed on the metal surface (42) by the first copper bar protective sleeve (41).

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