Multi-tap high-power three-phase transformer
By designing a multi-tap high-power three-phase transformer, using triangular wiring connection and disassembly connection of the adapter row, the problem of dense outlet rows on the output side of the existing transformer is solved, achieving a cleaner and more reliable structure and lower safety risks.
Patent Information
- Application Number
- CN202421522631.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The output side of the existing multi-tap three-phase transformer has dense outlets, which is difficult to control and has safety hazards.
A multi-tap high-power three-phase transformer is designed. By setting the first, second and third core columns and the corresponding primary windings, it adopts a triangular wiring connection, and through the disassembly connection of the adapter row and the connecting row, different loops on the primary side are realized, thereby realizing multi-tap input on the input side and reducing the connection row on the output side.
Different circuit conduction on the primary side is realized, reducing the connection rows on the output side, and the overall structure is cleaner and more reliable, reducing safety risks.
Smart Images
Figure CN222785139U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a multi-tap high-power three-phase transformer. Background Art
[0002] A multi-tap transformer, also known as a multi-way transformer, is a transformer with multiple output coils. Each coil can be adjusted to a different output voltage as needed. Multi-tap transformers are often used in power supply for experimental equipment, educational equipment, and some special occasions, such as medical equipment, industrial equipment, etc.
[0003] In experimental equipment, multi-tap transformers are usually used to supply power to meet the voltage requirements of different electrical equipment. For example, in electronic manufacturing experiments, some components have higher voltage requirements, while some components have lower voltage requirements. At this time, the requirements can be met by adjusting the output voltage of the multi-tap transformer.
[0004] In medical equipment, multi-tap transformers can also be used very well. Since medical equipment has high voltage requirements and requires different voltage outputs, multi-tap transformers have become an indispensable power supply device.
[0005] We know that most of the multi-tap three-phase transformers on the market have a single winding input and multi-tap outputs. As a result, the lead-out rows are mostly gathered at the output end, causing the lead-out rows on the output side to be densely packed. The row spacing is difficult to control and there is a safety hazard. Utility Model Content
[0006] The purpose of the utility model is to provide a multi-tap high-power three-phase transformer in view of the above-mentioned deficiencies in the prior art.
[0007] The purpose of the utility model is achieved through the following technical solutions: A multi-tap high-power three-phase transformer, comprising a first core leg, a second core leg and a third core leg; a first primary winding and a first secondary winding are wound outside the first core leg; a second primary winding and a second secondary winding are wound outside the second core leg; a third primary winding and a third secondary winding are wound outside the third core leg;
[0008] The multi-tap high-power three-phase transformer also includes a first end connection bar, a first middle connection bar, a first transfer bar, a first transfer bar, a second end connection bar, a second middle connection bar, a second transfer bar, a second transfer bar, a third end connection bar, a third middle connection bar, a third transfer bar and a third transfer bar;
[0009] The first transfer row is detachably connected to the first end connection row, the first middle connection row and the first transfer row respectively; the second transfer row is detachably connected to the second end connection row, the second middle connection row and the second transfer row respectively; the third transfer row is detachably connected to the third end connection row, the third middle connection row and the third transfer row respectively;
[0010] The first primary winding, the second primary winding and the third primary winding are connected in a delta connection.
[0011] The utility model is further configured such that the first end connecting row is connected to the head end of the first primary winding; the first middle connecting row is connected to the middle of the first primary winding; one end of the first transfer row is detachably connected to the first middle transfer row; the other end of the first transfer row is detachably connected to the first end connecting row and the first middle connecting row respectively; and the first middle transfer row is connected to the tail end of the third primary winding.
[0012] The utility model is further configured such that the second end connecting row is connected to the head end of the second primary winding; the second middle connecting row is connected to the middle of the second primary winding; one end of the second transfer row is detachably connected to the second middle transfer row; the other end of the second transfer row is detachably connected to the second end connecting row and the second middle connecting row respectively; and the second middle transfer row is connected to the tail end of the first primary winding.
[0013] The utility model is further configured such that the third end connecting row is connected to the head end of the third primary winding; the third middle connecting row is connected to the middle of the third primary winding; one end of the third transfer row is detachably connected to the third middle transfer row; the other end of the third transfer row is detachably connected to the third end connecting row and the third middle connecting row respectively; and the third middle transfer row is connected to the tail end of the second primary winding.
[0014] The utility model is further configured such that the first adapter row is provided with a first mounting hole; the first end connection row and the first middle connection row are both provided with a first fixing hole matching with the first mounting hole; the second adapter row is provided with a second mounting hole; the second end connection row and the second middle connection row are both provided with a second fixing hole matching with the second mounting hole; the third adapter row is provided with a third mounting hole; the third end connection row and the third middle connection row are both provided with a third fixing hole matching with the third mounting hole.
[0015] The utility model is further configured such that the first end connecting row, the first middle connecting row, the first transfer row and the first adapter row are arranged at the top of the first primary winding; the second end connecting row, the second middle connecting row, the second transfer row and the second adapter row are arranged at the top of the second primary winding; the third end connecting row, the third middle connecting row, the third transfer row and the third adapter row are arranged at the top of the third primary winding.
[0016] The utility model is further configured such that a first conducting row is provided between the bottom of the first primary winding and the bottom of the third primary winding; and the tail ends of the first transfer row and the third primary winding are respectively connected to the first conducting row.
[0017] The utility model is further configured such that a second conducting row is provided between the bottom of the first primary winding and the bottom of the second primary winding; and the second transfer row and the tail end of the first primary winding are respectively connected to the second conducting row.
[0018] The utility model is further configured such that a third conducting row is provided between the bottom of the second primary winding and the bottom of the third primary winding; the third transfer row and the tail end of the second primary winding are respectively connected to the third conducting row.
[0019] Beneficial effects of the utility model: The utility model can achieve different circuit conduction on the primary side by connecting the first transfer bar to the first end connection bar or the first middle connection bar, connecting the second transfer bar to the second end connection bar or the second middle connection bar, and connecting the third transfer bar to the third end connection bar or the third middle connection bar, thereby realizing multi-tap input on the input side, reducing the connection bars on the output end side, and making the overall structure neater and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.
[0021] Figure 1 It is a structural schematic diagram of the utility model;
[0022] Figure 2 It is a cross-sectional view of the utility model;
[0023] Figure 3 It is a schematic diagram of the principle of the utility model;
[0024] Among them: 11, the first core column; 12, the second core column; 13, the third core column; 21, the first primary winding; 22, the second primary winding; 23, the third primary winding; 31, the first end connecting row; 32, the first middle connecting row; 33, the first transfer row; 34, the first transfer row; 35, the first conductive row; 41, the second end connecting row; 42, the second middle connecting row; 43, the second transfer row; 44, the second transfer row; 45, the second conductive row; 51, the third end connecting row; 52, the third middle connecting row; 53, the third transfer row; 54, the third transfer row; 55, the third conductive row; 61, the first mounting hole; 62, the first fixing hole; 71, the second mounting hole; 72, the second fixing hole; 81, the third mounting hole; 82, the third fixing hole. DETAILED DESCRIPTION
[0025] The utility model is further described in conjunction with the following embodiments.
[0026] Depend on Figures 1 to 3 It can be seen that the multi-tap high-power three-phase transformer described in this embodiment includes a first core column 11, a second core column 12 and a third core column 13; the first core column 11 is wound with a first primary winding 21 and a first secondary winding; the second core column 12 is wound with a second primary winding 22 and a second secondary winding; the third core column 13 is wound with a third primary winding 23 and a third secondary winding; the multi-tap high-power three-phase transformer also includes a first end connection row 31, a first middle connection row 32, a first transfer row 33, a first transfer row 34, a second end connection row 41, a second middle connection row 42, a second transfer row 43, a second transfer row The first transfer row 34 is detachably connected to the first end connection row 31, the first middle connection row 32 and the first transfer row 33 respectively; the second transfer row 44 is detachably connected to the second end connection row 41, the second middle connection row 42 and the second transfer row 43 respectively; the third transfer row 54 is detachably connected to the third end connection row 51, the third middle connection row 52 and the third transfer row 53 respectively; the first primary winding 21, the second primary winding 22 and the third primary winding 23 are connected in a triangle connection. The first secondary winding, the second secondary winding and the third secondary winding are not shown in the figure, and the first secondary winding, the second secondary winding and the third secondary winding are respectively wound in the first primary winding 21, the second primary winding 22 and the third primary winding 23.
[0027] In the multi-tap high-power three-phase transformer described in the present embodiment, the first end connection bar 31 is connected to the head end of the first primary winding 21; the first middle connection bar 32 is connected to the middle of the first primary winding 21; one end of the first transfer bar 34 is detachably connected to the first transfer bar 33; the other end of the first transfer bar 34 is detachably connected to the first end connection bar 31 and the first middle connection bar 32 respectively; the first transfer bar 33 is connected to the tail end of the third primary winding 23. In the multi-tap high-power three-phase transformer described in the present embodiment, the second end connection bar 41 is connected to the head end of the second primary winding 22; the second middle connection bar 42 is connected to the middle of the second primary winding 22; one end of the second transfer bar 44 is detachably connected to the second transfer bar 43; the other end of the second transfer bar 44 is detachably connected to the second end connection bar 41 and the second middle connection bar 42 respectively; the second transfer bar 43 is connected to the tail end of the first primary winding 21. In the multi-tap high-power three-phase transformer described in this embodiment, the third end connecting row 51 is connected to the head end of the third primary winding 23; the third middle connecting row 52 is connected to the middle of the third primary winding 23; one end of the third transfer row 54 is detachably connected to the third middle transfer row 53; the other end of the third transfer row 54 is detachably connected to the third end connecting row 51 and the third middle connecting row 52 respectively; the third transfer row 53 is connected to the tail end of the second primary winding 22.
[0028] Specifically, the multi-tap high-power three-phase transformer described in this embodiment, when in use, because the first end connection row 31 and the first middle connection row 32 are respectively connected to different positions of the first primary winding 21, the second end connection row 41 and the second middle connection row 42 are respectively connected to different positions of the second primary winding 22, the third end connection row 51 and the third middle connection row 52 are respectively connected to different positions of the third primary winding 23, and after the first transfer row 33 is connected to the first transfer row 34, the second transfer row 43 is connected to the second transfer row 44. After the connection, after the third transfer bar 53 is connected to the third transfer bar 54, the user can connect the first transfer bar 33 to the first end connection bar 31 or the first middle connection bar 32, connect the second transfer bar 43 to the second end connection bar 41 or the second middle connection bar 42, and connect the third transfer bar 53 to the third end connection bar 51 or the third middle connection bar 52 according to the implementation requirements, so as to achieve different circuit conduction on the primary side, thereby realizing multi-tap input on the input side, reducing the connection bars on the output side, and making the overall structure neater and more reliable.
[0029] In the multi-tap high-power three-phase transformer described in this embodiment, the first adapter row 34 is provided with a first mounting hole 61; the first end connection row 31 and the first middle connection row 32 are both provided with a first fixing hole 62 that matches the first mounting hole 61; the second adapter row 44 is provided with a second mounting hole 71; the second end connection row 41 and the second middle connection row 42 are both provided with a second fixing hole 72 that matches the second mounting hole 71; the third adapter row 54 is provided with a third mounting hole 81; the third end connection row 51 and the third middle connection row 52 are both provided with a third fixing hole 82 that matches the third mounting hole 81. Specifically, through the above-mentioned arrangement, it is convenient to use bolts to disassemble and assemble between the first mounting hole 61 and the first fixing hole 62, to use bolts to disassemble and assemble between the second mounting hole 71 and the second fixing hole 72, and to use bolts to disassemble and assemble between the third mounting hole 81 and the third fixing hole 82.
[0030] In the multi-tap high-power three-phase transformer described in this embodiment, the first end connecting bar 31, the first middle connecting bar 32, the first transfer bar 33 and the first transfer bar 34 are arranged at the top of the first primary winding 21; the second end connecting bar 41, the second middle connecting bar 42, the second transfer bar 43 and the second transfer bar 44 are arranged at the top of the second primary winding 22; the third end connecting bar 51, the third middle connecting bar 52, the third transfer bar 53 and the third transfer bar 54 are arranged at the top of the third primary winding 23.
[0031] Specifically, through the above arrangement, the overall structure of the transformer is made more reasonable and reliable.
[0032] In the multi-tap high-power three-phase transformer described in this embodiment, a first conductive row 35 is provided between the bottom of the first primary winding 21 and the bottom of the third primary winding 23; the tail ends of the first transfer row 33 and the third primary winding 23 are respectively connected to the first conductive row 35.
[0033] Specifically, through the above arrangement, the overall structure of the transformer is made more reasonable and reliable.
[0034] In the multi-tap high-power three-phase transformer described in this embodiment, a second conductive row 45 is provided between the bottom of the first primary winding 21 and the bottom of the second primary winding 22; the second transfer row 43 and the tail end of the first primary winding 21 are respectively connected to the second conductive row 45.
[0035] Specifically, through the above arrangement, the overall structure of the transformer is made more reasonable and reliable.
[0036] In the multi-tap high-power three-phase transformer described in this embodiment, a third conductive row 55 is provided between the bottom of the second primary winding 22 and the bottom of the third primary winding 23; the third transfer row 53 and the tail end of the second primary winding 22 are respectively connected to the third conductive row 55.
[0037] Specifically, through the above arrangement, the overall structure of the transformer is made more reasonable and reliable.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A multi-tap high-power three-phase transformer, characterized in that: It comprises a first core column, a second core column and a third core column; a first primary winding and a first secondary winding are wound around the first core column; a second primary winding and a second secondary winding are wound around the second core column; a third primary winding and a third secondary winding are wound around the third core column; The multi-tap high-power three-phase transformer also includes a first end connection bar, a first middle connection bar, a first transfer bar, a first transfer bar, a second end connection bar, a second middle connection bar, a second transfer bar, a second transfer bar, a third end connection bar, a third middle connection bar, a third transfer bar and a third transfer bar; The first transfer row is detachably connected to the first end connection row, the first middle connection row and the first transfer row respectively; the second transfer row is detachably connected to the second end connection row, the second middle connection row and the second transfer row respectively; the third transfer row is detachably connected to the third end connection row, the third middle connection row and the third transfer row respectively; The first primary winding, the second primary winding and the third primary winding are connected in a delta connection manner.
2. A multi-tap high-power three-phase transformer according to claim 1, characterized in that: The first end connecting row is connected to the head end of the first primary winding; the first middle connecting row is connected to the middle of the first primary winding; one end of the first transfer row is detachably connected to the first middle transfer row; the other end of the first transfer row is detachably connected to the first end connecting row and the first middle connecting row respectively; the first middle transfer row is connected to the tail end of the third primary winding.
3. A multi-tap high-power three-phase transformer according to claim 1, characterized in that: The second end connecting row is connected to the head end of the second primary winding; the second middle connecting row is connected to the middle of the second primary winding; one end of the second transfer row is detachably connected to the second middle transfer row; the other end of the second transfer row is detachably connected to the second end connecting row and the second middle connecting row respectively; the second middle transfer row is connected to the tail end of the first primary winding.
4. A multi-tap high-power three-phase transformer according to claim 1, characterized in that: The third end connecting row is connected to the head end of the third primary winding; the third middle connecting row is connected to the middle of the third primary winding; one end of the third transfer row is detachably connected to the third middle transfer row; the other end of the third transfer row is detachably connected to the third end connecting row and the third middle connecting row respectively; the third middle transfer row is connected to the tail end of the second primary winding.
5. The multi-tap high-power three-phase transformer according to claim 1, characterized in that: The first adapter row is provided with a first mounting hole; the first end connection row and the first middle connection row are both provided with a first fixing hole matching with the first mounting hole; the second adapter row is provided with a second mounting hole; the second end connection row and the second middle connection row are both provided with a second fixing hole matching with the second mounting hole; the third adapter row is provided with a third mounting hole; the third end connection row and the third middle connection row are both provided with a third fixing hole matching with the third mounting hole.
6. The multi-tap high-power three-phase transformer according to claim 1, characterized in that: The first end connecting row, the first middle connecting row, the first transfer row and the first transfer row are arranged at the top of the first primary winding; the second end connecting row, the second middle connecting row, the second transfer row and the second transfer row are arranged at the top of the second primary winding; the third end connecting row, the third middle connecting row, the third transfer row and the third transfer row are arranged at the top of the third primary winding.
7. A multi-tap high-power three-phase transformer according to claim 6, characterized in that: A first conducting row is provided between the bottom of the first primary winding and the bottom of the third primary winding; the first transfer row and the tail end of the third primary winding are respectively connected to the first conducting row.
8. The multi-tap high-power three-phase transformer according to claim 6, characterized in that: A second conducting row is provided between the bottom of the first primary winding and the bottom of the second primary winding; the second transfer row and the tail end of the first primary winding are respectively connected to the second conducting row.
9. The multi-tap high-power three-phase transformer according to claim 6, characterized in that: A third conducting row is provided between the bottom of the second primary winding and the bottom of the third primary winding; the third transfer row and the tail end of the second primary winding are respectively connected to the third conducting row.