Transformer assembly in rectifier

Abstract

The utility model relates to the technical field of power supply equipment, and particularly discloses a transformer assembly in a rectifier, which comprises a magnetic core framework, a magnetic core is arranged on the magnetic core framework, an output copper plate is further connected onto the magnetic core framework, a flexible conductive piece is connected onto the output copper plate, and the flexible conductive piece is further connected with a synchronous module assembly. Even if the rectifier shakes in the transportation process, the transformer assembly in the rectifier is electrically connected with the synchronous module assembly through the flexible conductive part, so that the flexible conductive part does not pull the connection point position and further does not pull the circuit board, and the power tube on the circuit board can be prevented from being pulled and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply equipment, and particularly relates to a transformer assembly in a rectifier. Background Art

[0002] A rectifier is a power supply device, and its main function is to convert alternating current into direct current. The working principle of the rectifier is mainly to convert the input alternating current into direct current through a rectifier, and this process usually involves adjusting the current and voltage to meet specific application requirements. In the fields of electroplating, aluminum anodizing, electrolysis, etc., the rectifier provides the necessary DC power supply to drive the chemical reactions in these processes.

[0003] One of the main modules in the rectifier is the transformer. Through the transformer, voltage matching and electrical isolation can be achieved, that is: the transformer can convert the input AC voltage to a level suitable for the operation of the rectifier circuit and achieve electrical isolation between the AC power grid and the rectifier circuit to ensure a safe and stable working state; in addition, the output voltage can also be adjusted through the transformer, that is: the main function of the rectifier circuit is to convert alternating current into unidirectional pulsating direct current, and the transformer can adjust the output DC voltage to meet the requirements of different devices. In addition, in some applications, such as in a three-phase rectifier circuit, the three-phase transformer is one of the core components, which can convert the input three-phase alternating current into the required voltage and ensure the coordination and balance between the three-phase power supplies. Generally speaking, the transformer in the rectifier not only ensures voltage matching and electrical isolation, but also adjusts the voltage during the rectification process to adapt to different application scenarios.

[0004] However, the transformer in the existing rectifier is rigidly connected to the synchronization module through a conductive copper plate or a conductive aluminum bar. During transportation, due to shaking, the rectifier and its internal components will shake together, resulting in the conductive copper plate or conductive aluminum bar in the rectifier directly or indirectly pulling the circuit board connected to it, and further causing the power tube on the circuit board to be pulled, resulting in damage to the power tube and affecting the normal operation of the rectifier. Summary of the Utility Model

[0005] The utility model aims to solve the technical problems existing in the above-mentioned prior art, and provides a transformer assembly in a rectifier to avoid damage to the power tube caused by being pulled.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A transformer assembly in a rectifier according to the utility model includes a magnetic core skeleton, on which a magnetic core is arranged, and an output copper plate is also connected to the magnetic core skeleton. A flexible conductive member is connected to the output copper plate, and the flexible conductive member is also connected to a synchronization module assembly.

[0008] For a transformer assembly in a rectifier machine according to the present utility model, even if there is shaking during transportation, since the transformer assembly in the rectifier machine is electrically connected to the synchronous module assembly through a flexible conductive member, the flexible conductive member will not pull on the connection points, and thus will not pull on the circuit board, thereby avoiding damage to the power transistors on the circuit board due to being pulled.

[0009] Furthermore, the magnetic core skeleton includes a left skeleton and a right skeleton; wherein, the left skeleton includes an installation protrusion, and a first through hole is provided on the installation protrusion, and the structure of the right skeleton is the same as that of the left skeleton; when docking the left skeleton and the right skeleton, the installation protrusions on the left skeleton are docked with the installation protrusions on the right skeleton to form a magnetic core mounting seat, and the first through hole on the left skeleton communicates with the first through hole on the right skeleton to form a through hole for the flexible conductive member to pass through.

[0010] Furthermore, first connecting portions extending towards each other are respectively provided at the tops of the left skeleton and the right skeleton, and second connecting portions extending towards each other are respectively provided at the bottoms of the left skeleton and the right skeleton, and there are spaces between the first connecting portions and the installation protrusions and between the second connecting portions and the installation protrusions. When docking the left skeleton and the right skeleton, the first connecting portion on the left skeleton, the first connecting portion on the right skeleton, the installation protrusion on the left skeleton, and the installation protrusion on the right skeleton form a first accommodation space, and the second connecting portion on the left skeleton, the second connecting portion on the right skeleton, the installation protrusion on the left skeleton, and the installation protrusion on the right skeleton form a second accommodation space; the magnetic core is annular, the inner hole of the magnetic core is sleeved on the magnetic core mounting seat, and a part of the magnetic core passes through the first accommodation space and the second accommodation space.

[0011] Furthermore, a first positioning component is provided between the first connecting portion of the left skeleton and the first connecting portion of the right skeleton, and a second positioning component is provided between the second connecting portion of the left skeleton and the second connecting portion of the right skeleton.

[0012] Furthermore, the flexible conductive member is a soft copper strip, the soft copper strip includes a horizontally arranged first connecting end and a horizontally arranged second connecting end, the first connecting end and the second connecting end are connected by an intermediate connecting portion, the intermediate connecting portion of the soft copper strip passes through the through hole in the middle of the magnetic core skeleton and the inner hole of the magnetic core, the first connecting end of the soft copper strip is connected to the output copper plate, and the second connecting end is connected to the synchronous module assembly.

[0013] Further, the output copper plate includes a first connecting plate, a second connecting plate is arranged on one side edge of the first connecting plate, and a third connecting plate is arranged on one side edge of the second connecting plate. The first connecting plate and the second connecting plate are arranged at an angle, the second connecting plate and the third connecting plate are arranged at an angle, and the first connecting plate is parallel to the third connecting plate. One end of the flexible conductive member is connected to the first connecting plate, and the third connecting plate is connected to a first output copper bar.

[0014] Further, a current sensor and a reactor are arranged on the first output copper bar.

[0015] Further, the synchronization module assembly includes a PCB board, a conductive bottom plate, and a conductive strip. The PCB board connects the conductive bottom plate and the conductive strip. The other end of the flexible conductive member is connected to the conductive strip.

[0016] Further, a first protrusion is arranged on the surface of one end of the conductive bottom plate, and a second output copper bar is connected to the first protrusion.

[0017] Further, a part of the upper surface of the conductive strip is provided with a second protrusion, and the second protrusion is connected to the output copper plate. Description of the Drawings

[0018] The above and other objects, features and advantages of the present invention will become more clear through the preferred embodiments of the present invention shown in the drawings. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0019] Figure 1 It is a schematic exploded view of the transformer assembly of the present invention.

[0020] Figure 2 It is a schematic connection structure diagram of the transformer assembly and the synchronization module assembly.

[0021] Figure 3 It is a schematic diagram of the magnetic core skeleton structure.

[0022] Figure 4 It is a schematic diagram of the rectifier structure with a dual-output structure (part of the housing removed).

[0023] Figure 5 It is a schematic diagram of the synchronization module assembly structure.

[0024] Among them, there are a rectifier installation housing 1; a magnetic core 2; a flexible conductive member 3; a perforation 5; a left skeleton 6; a right skeleton 7; an installation protrusion 8; a first through hole 9; a magnetic core mounting seat 10; a first connection portion 11; a second connection portion 12; a first accommodation space 13; a second accommodation space 14; an installation portion 15; a conductive bottom plate 16; a first positioning groove 17; a first positioning post 18; a second positioning groove 19; a second positioning post 20; a first connection plate 21; a second connection plate 22; a third connection plate 23; a first output copper bar 24; a current sensor 25; a reactor 26; a PCB board 27; a conductive bar 28; a first protrusion 29; a second output copper bar 30; a second protrusion 31. Detailed implementation manners

[0025] To facilitate the understanding of the present utility model, the following will refer to the relevant drawings to describe the present more comprehensively.

[0026] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element at the same time. The terms "installation", "one end", "the other end" and similar expressions used herein are only for the purpose of illustration.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this technology belongs. The terms used in the description of the present specification herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] In this embodiment, a specific implementation manner of a transformer assembly in a rectifier is provided. Among them, the rectifier in this embodiment can be a rectifier with a single-output structure or a rectifier with a dual-output structure. The so-called rectifier with a single-output structure means that it can connect at most one load, while the rectifier with a dual-output structure can connect two loads at the same time and work independently of each other. In this embodiment, the rectifier with a dual-output structure is taken as an example to describe the installation structure of the synchronization module.

[0029] See Figure 1 、 Figure 2 and Figure 4, having a rectifier mounting housing 1, a magnetic core skeleton is arranged inside the rectifier mounting housing 1, a magnetic core 2 is arranged on the magnetic core skeleton, an output copper plate is also connected to the magnetic core skeleton, a flexible conductive member 3 is connected to the output copper plate, and the flexible conductive member 3 is also connected to the synchronization module assembly. Among them, the flexible conductive member 3 is a soft copper strip, the soft copper strip includes a horizontally arranged first connection end and a horizontally arranged second connection end, the first connection end and the second connection end are connected by an intermediate connection part, and the intermediate connection part of the soft copper strip passes through a through hole 5 in the middle of the magnetic core skeleton and the inner hole of the magnetic core 2. The first connection end of the soft copper strip is connected to the output copper plate, and the second connection end is connected to the synchronization module assembly; the intermediate connection part can be in a Z shape, such as Figure 1 and Figure 2 shown, which is convenient for passing through the through hole 5 in the middle of the magnetic core skeleton and the inner hole of the magnetic core 2, avoiding interference, and at the same time making the whole transformer more beautiful; of course, the intermediate connection part can also be an arc, as long as it is allowed that the arc-shaped intermediate connection part can pass through the through hole 5 in the middle of the magnetic core skeleton and the inner hole of the magnetic core 2 without interfering with it. The intermediate connection part can also be formed by setting the first section and the second section at an included angle. The soft copper strip has good flexible connection performance and heat dissipation performance, that is: the soft copper strip is made of copper, and copper is a metal with good flexibility and can be bent multiple times without breaking, which enables the soft copper strip to adapt to various installation conditions and motion states. Copper is also a metal with excellent thermal conductivity and can transfer heat quickly; in addition, the soft copper strip is in a flat shape, increasing the area in contact with air, which is not only beneficial to heat dissipation but also easier to bend into the required shape, and can easily meet the requirements of complex wire connections and circuit designs; therefore, the transformer assembly is flexibly electrically connected to the synchronization module through the soft copper strip, which not only avoids directly or indirectly damaging the power tubes on the circuit board due to pulling at the connection points, but also improves the heat dissipation performance and avoids damaging the power tubes due to overheating.

[0030] In this embodiment, referring to Figures 1 - 3 , the magnetic core skeleton includes a left skeleton 6 and a right skeleton 7; among them, the left skeleton 6 includes a mounting protrusion 8, and the shape of the mounting protrusion 8 is adapted to the shape of the inner hole of the magnetic core 2 to fit the installation of the magnetic core 2; a first through hole 9 is arranged on the mounting protrusion 8, the first through hole 9 is arranged along the length direction of the mounting protrusion 8 and penetrates through both ends of the length of the mounting protrusion 8, and the structure of the right skeleton 7 is the same as that of the left skeleton 6; when docking the left skeleton 6 and the right skeleton 7, the mounting protrusion 8 on the left skeleton 6 is docked with the mounting protrusion 8 on the right skeleton 7 to form a magnetic core mounting seat 10, and the first through hole 9 on the left skeleton 6 is communicated with the first through hole 9 on the right skeleton 7 to form a through hole 5 for the flexible conductive member 3 to pass through.

[0031] In a preferred embodiment, referring to Figure 3, at the top of the left frame 6 and the top of the right frame 7, there are respectively provided with first connecting parts 11 extending towards each other, and at the bottom of the left frame 6 and the bottom of the right frame 7, there are respectively provided with second connecting parts 12 extending towards each other. There is a gap between the first connecting part 11 and the mounting projection 8, and between the second connecting part 12 and the mounting projection 8. When docking the left frame 6 and the right frame 7, the first connecting part 11 on the left frame 6, the first connecting part 11 on the right frame 7, the mounting projection 8 on the left frame 6, and the mounting projection 8 on the right frame 7 form a first accommodation space 13, and the second connecting part 12 on the left frame 6, the second connecting part 12 on the right frame 7, the mounting projection 8 on the left frame 6, and the mounting projection 8 on the right frame 7 form a second accommodation space 14; the magnetic core 2 is annular, the inner hole of the magnetic core 2 is sleeved on the magnetic core mounting seat 10, and a part of the magnetic core 2 passes through the first accommodation space 13 and the second accommodation space 14. In addition, at both ends of the first connecting part 11 and both ends of the second connecting part 12, there are respectively provided with mounting parts 15 extending horizontally outwards. The mounting parts 15 on the first connecting part 11 of the left frame 6 and the mounting parts 15 on the first connecting part 11 of the right frame 7 are connected to the output copper plate by fasteners, and the mounting parts 15 on the second connecting part 12 of the left frame 6 and the mounting parts 15 on the second connecting part 12 of the right frame 7 are connected to the conductive bottom plate 16 of the synchronous module assembly by fasteners.

[0032] In a preferred embodiment, refer to Figure 3 , between the first connecting part 11 of the left frame 6 and the first connecting part 11 of the right frame 7, a first positioning component is provided, and between the second connecting part 12 of the left frame 6 and the second connecting part 12 of the right frame 7, a second positioning component is provided. The first positioning component includes a first positioning groove 17 and a first positioning post 18. Through the cooperation of the first positioning groove 17 and the first positioning post 18, the first connecting parts 11 of the left frame 6 and the right frame 7 can be quickly docked. The first positioning groove 17 and the first positioning post 18 can be respectively and arbitrarily arranged on the first connecting parts 11 of the left frame 6 and the right frame 7; the second positioning component includes a second positioning groove 19 and a second positioning post 20. Through the cooperation of the second positioning groove 19 and the second positioning post 20, the second connecting parts 12 of the left frame 6 and the right frame 7 can be quickly docked. The second positioning groove 19 and the second positioning post 20 can be respectively and arbitrarily arranged on the second connecting parts 12 of the left frame 6 and the right frame 7.

[0033] In this embodiment, refer to Figure 1 and 2, the output copper plate includes a first connecting plate 21. On one side edge of the first connecting plate 21, a second connecting plate 22 is provided. On one side edge of the second connecting plate 22, a third connecting plate 23 is provided. The first connecting plate 21 and the second connecting plate 22 are arranged at an angle. The second connecting plate 22 and the third connecting plate 23 are arranged at an angle. And the first connecting plate 21 is parallel to the third connecting plate 23. It can be understood that the angle between the first connecting plate 21 and the second connecting plate 22 can be 90°. The connection between the first connecting plate 21 and the second connecting plate 22 is provided with a rounded corner. The angle between the second connecting plate 22 and the third connecting plate 23 can also be 90°. The connection between the second connecting plate 22 and the third connecting plate 23 is provided with a rounded corner. Through the above structure, the output copper plate can be bent towards the synchronous module component while being able to be connected to the first output copper row 24, making the overall module structure formed by the synchronous module component and the transformer component compact; One end of the flexible conductive part 3 is connected to the first connecting plate 21. The third connecting plate 23 is connected to a first output copper row 24. The first output copper row 24 and the second output copper row 30 are respectively electrically connected to the positive and negative electrodes of the load, thereby realizing the energization of the load.

[0034] In the preferred embodiment, a current sensor 25 and a reactor 26 are provided on the first output copper row 24. Among them, when the reactor 26 is used in the rectifier, it can limit the sudden change of current, thereby reducing the current fluctuation and voltage spike. This helps to stabilize the DC output. Especially when the power supply or load changes, it can maintain the continuity and stability of the current. And the current sensor 25 can monitor and adjust the current passing through the rectifier, providing real-time current readings to ensure that the current remains within a safe and predetermined operating range. In addition, the current sensor 25 can also detect abnormal conditions such as short circuits or overloads, thereby triggering protection measures to prevent equipment damage; Through the combined use of the current sensor 25 and the reactor 26, not only can the overall performance and reliability of the system be improved, but also the equipment can be protected from potential electrical hazards.

[0035] In this embodiment, refer to Figure 2 , 45, a synchronization module assembly is disposed in the rectifier installation housing 1. The synchronization module assembly includes a PCB board 27, a conductive bottom plate 16, and a conductive bar 28. The PCB board 27 connects the conductive bottom plate 16 and the conductive bar 28; the other end of the flexible conductive member 3 is connected to the conductive bar 28. The PCB board 27 is an intelligent drive and protection circuit board. The circuit structure on the PCB board 27 and its implemented functions are all prior arts, and the functions and circuit structure of the PCB board 27 itself are not the invention points of the present utility model; the connection method of the PCB board 27 connecting the conductive bottom plate 16 and the conductive bar 28 is mainly that the PCB board 27 is detachably connected to the conductive bottom plate 16 and the conductive bar 28 simultaneously through fasteners. Through the action of the conductive bottom plate 16 and the conductive bar 28, the synchronization module assembly forms an integral body, and then through the magnetic core skeleton and the output copper plate, the transformer assembly forms an integral module, and the transformer assembly and the synchronization module assembly are integrally connected into one piece, so that the transformer assembly and the synchronization module assembly form an integral module, which is convenient for installation in the rectifier and improves the assembly efficiency. There are two conductive bars 28, which are respectively disposed on both sides of the conductive bottom plate 16, and each conductive bar 28 corresponds to a PCB board 27.

[0036] In the preferred embodiment, referring to Figure 5 , a first protrusion 29 is disposed on the surface of one end of the conductive bottom plate 16, and a second output copper row 30 is connected to the first protrusion 29; a part of the upper surface of the conductive bar 28 is provided with a second protrusion 31. It can be understood that the second protrusion 31 only covers a part of the upper surface of the conductive bar 28, so that the cross-section of the conductive bar 28 in its width direction forms an L shape. The second protrusion 31 is connected to the output copper plate through the flexible conductive member 3. The parts of the upper surfaces of the two conductive bars 28 where the second protrusion 31 is not provided and the part of the surface of the conductive bottom plate 16 where the first protrusion 29 is not provided form an installation groove, and the two PCB boards 27 are installed in the installation groove. Through the setting of the foregoing structure, the PCB board 27 installed in the installation groove and the electronic components on the PCB board 27 can be prevented from being touched and damaged. In addition, the first output copper row 24 and the second output copper row 30 are directly electrically connected to the positive and negative terminals of the load, so that the load receives the required stable current or stable voltage.

[0037] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0038] In the description of this specification, the description with reference to terms such as "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0039] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. A transformer assembly in a rectifier, characterized in that: It comprises a magnetic core skeleton, a magnetic core is arranged on the magnetic core skeleton, an output copper plate is connected to the magnetic core skeleton, a flexible conductive part is connected to the output copper plate, and the flexible conductive part is also connected to the synchronous module component.

2. The transformer assembly in the rectifier according to claim 1, characterized in that: The magnetic core skeleton includes a left skeleton and a right skeleton; wherein, the left skeleton includes a mounting protrusion, and the mounting protrusion is provided with a first through hole, and the structure of the right skeleton is the same as that of the left skeleton; when the left skeleton and the right skeleton are docked, the mounting protrusion on the left skeleton is docked with the mounting protrusion on the right skeleton to form a magnetic core mounting seat, and the first through hole on the left skeleton is connected with the first through hole on the right skeleton to form a through hole for the flexible conductive part to pass through.

3. The transformer assembly in the rectifier according to claim 2, characterized in that: The top of the left frame and the top of the right frame are respectively provided with first connecting parts extending toward each other, and the bottom of the left frame and the bottom of the right frame are respectively provided with second connecting parts extending toward each other, and there is a spacing between the first connecting part and the mounting protrusion and between the second connecting part and the mounting protrusion. When the left frame and the right frame are docked, the first connecting part on the left frame, the first connecting part on the right frame, the mounting protrusion on the left frame and the mounting protrusion on the right frame form a first accommodating space, and the second connecting part on the left frame, the second connecting part on the right frame, the mounting protrusion on the left frame and the mounting protrusion on the right frame form a second accommodating space; the magnetic core is annular, the inner hole of the magnetic core is sleeved on the magnetic core mounting seat, and part of the magnetic core passes through the first accommodating space and the second accommodating space.

4. The transformer assembly in the rectifier according to claim 3, characterized in that: A first positioning assembly is arranged between the first connection part of the left frame and the first connection part of the right frame, and a second positioning assembly is arranged between the second connection part of the left frame and the second connection part of the right frame.

5. The transformer assembly in the rectifier according to claim 1, characterized in that: The flexible conductive member is a soft copper belt, which includes a horizontally arranged first connection end and a horizontally arranged second connection end. The first connection end and the second connection end are connected via an intermediate connection portion. The intermediate connection portion of the soft copper belt passes through the through hole in the middle of the magnetic core skeleton and the inner hole of the magnetic core. The first connection end of the soft copper belt is connected to the output copper plate, and the second connection end is connected to the synchronization module assembly.

6. The transformer assembly in the rectifier according to claim 1, characterized in that: The output copper plate includes a first connecting plate, a second connecting plate is arranged on one side of the first connecting plate, and a third connecting plate is arranged on one side of the second connecting plate. The first connecting plate and the second connecting plate are arranged at an angle, the second connecting plate and the third connecting plate are arranged at an angle, and the first connecting plate is parallel to the third connecting plate; one end of the flexible conductive member is connected to the first connecting plate, and the third connecting plate is connected to the first output copper busbar.

7. The transformer assembly in the rectifier according to claim 6, characterized in that: The first output copper bus is provided with a current sensor and a reactor.

8. The transformer assembly in the rectifier according to claim 1, characterized in that: The synchronization module assembly includes a PCB board, a conductive bottom plate and a conductive strip. The PCB board connects the conductive bottom plate and the conductive strip. The other end of the flexible conductive member is connected to the conductive strip.

9. The transformer assembly in the rectifier according to claim 8, characterized in that: A first protrusion is disposed on the surface of one end of the conductive bottom plate, and a second output copper bus is connected to the first protrusion.

10. The transformer assembly in the rectifier according to claim 8, characterized in that: A second protrusion is partially provided on the upper surface of the conductive strip, and the second protrusion is connected to the output copper plate.

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