Three-phase integrated electronic transformer assembly

Abstract

The invention discloses a three-phase integrated electronic mutual inductor assembly, which relates to the technical field of mutual inductors and comprises a mutual inductance assembly, an armored protection assembly and a pumping processing assembly. The mutual inductance assembly comprises an iron core, a first winding, a second winding and an inner side supporting structure. Two ends of the iron core are respectively wound with a winding 1 and a winding 2. The armored protection assembly includes an underside support structure and an outboard enclosure structure. The lower support structure supports the inner support structure from the lower side, and the outer surrounding structure surrounds the iron core from the outer side. The outer surrounding structure comprises two groove bodies which are opposite in position, and groove openings of the groove bodies are closed. The pumping treatment assembly comprises a pump body and an oil conveying structure. The two ports of the pump body are the first port and the second port respectively. The oil conveying structure is connected with the two ports of the pump body respectively. Insulating oil conveyed by the oil conveying structure passes through and fills the groove body, so that the winding I and the winding II are immersed in the insulating oil. According to the three-phase integrated electronic transformer assembly, the heat dissipation effect of the iron core can be improved while armoring protection is provided.

Description

Technical Field

[0001] The invention relates to the technical field of mutual inductors, and in particular to a three-phase integrated electronic mutual inductor assembly. Background Art

[0002] The instrument transformer is a contact element between the primary system and the secondary system in the AC circuit. Its working principle is basically the same as that of the transformer. The instrument transformer includes a voltage transformer and a current transformer. The three-phase integrated electronic instrument transformer is an advanced measurement device used in the power system. It combines electronic technology and the functions of the instrument transformer to achieve accurate measurement of three-phase current or voltage. The existing mutual inductor achieves the purpose of circuit induction through electromagnetic induction, and has the problem of not being able to adapt to armor. In addition, since the traditional mutual inductor is often sealed with resin, it is impossible to quickly dissipate heat. Summary of the invention

[0003] The object of the present invention is to provide a three-phase integrated electronic transformer assembly, which can improve the heat dissipation effect of the iron core while providing armor protection.

[0004] To achieve the above object, the present invention provides the following solutions: The present invention discloses a three-phase integrated electronic transformer assembly, comprising: A mutual inductance component, comprising an iron core, a winding 1, a winding 2 and an inner support structure; the two ends of the iron core are respectively wound with the winding 1 and the winding 2, and the inner support structure is located inside the iron core and fixedly connected to the iron core; The armor protection assembly comprises a lower support structure and an outer surrounding structure; the lower support structure supports the inner support structure from the lower side, and the outer surrounding structure surrounds the iron core from the outer side; the outer surrounding structure comprises two slots facing each other, and the two slots respectively accommodate one end of the iron core wound with the winding one and one end wound with the winding two, and the slot openings of the slots are closed; A pumping processing component includes a pump body and an oil delivery structure; the oil delivery structure is respectively connected to two ports of the pump body so that insulating oil can be delivered between the two ports of the pump body; the insulating oil delivered by the oil delivery structure passes through and fills the tank body, so that one end of the iron core wound with the winding one and one end of the iron core wound with the winding two are both immersed in the insulating oil.

[0005] Preferably, a detection device is installed on the wire connected to the winding one, so that the detection device is connected in parallel with the winding one.

[0006] Preferably, the inner supporting structure includes a limit seat and a protective pad; the limit seat is located on the inner side of the iron core and is fixedly connected to the iron core, the upper end of the limit seat is fixedly connected to the protective pad, and the upper end of the protective pad is higher than the upper ends of winding one and winding two.

[0007] Preferably, the lower support structure includes a fixed chassis, a limit support platform and an insulating protection plate; the upper end of the fixed chassis is fixedly connected to the limit support platform, the upper end of the limit support platform is fixedly connected to the insulating protection plate, and the insulating protection plate supports the inner support structure from the lower side.

[0008] Preferably, the outer surrounding structure further comprises two protective fixing blocks which are positioned opposite to each other, and the protective fixing blocks are located between the two groove bodies.

[0009] Preferably, the lower supporting structure further comprises a connecting shaft, the lower end of the connecting shaft is fixedly connected to the fixed chassis, and the upper end of the connecting shaft is fixedly connected to the protective fixing block.

[0010] Preferably, the oil delivery structure comprises an oil delivery seat 1, an oil delivery seat 2, a drainage conduit 1, a drainage conduit 2, an extension conduit, a connecting built-in pipe, a docking connecting seat 1, a connecting pipe and a docking connecting seat 2; From a port of the pump body to the tank body accommodating the winding 1, the oil delivery seat 1, the drainage conduit 1, the extension conduit, and the communication built-in conduit are connected in sequence; From one port of the pump body to the direction of the tank body accommodating the second winding, the second oil delivery seat, the second drainage conduit, the extension conduit, and the communication built-in pipe are connected in sequence; From the slot body accommodating the winding 1 to the other port of the pump body, the butt-joint connection seat 1, the connecting pipe, and the butt-joint connection seat 2 are connected in sequence; From the slot body accommodating the second winding to the other port of the pump body, the first docking and connecting seat, the connecting pipe, and the second docking and connecting seat are connected in sequence.

[0011] Preferably, each of the tank bodies corresponds to a plurality of the communicating built-in pipes.

[0012] Preferably, each of the trough bodies corresponds to one of the connecting pipes and one of the docking and connecting seats 2.

[0013] Preferably, the first docking and connecting seat and the second docking and connecting seat are both square.

[0014] Compared with the related art, the present invention has achieved the following technical effects: The inner supporting structure protects the iron core, winding one and winding two from the inside, the lower supporting structure protects the iron core, winding one and winding two from the bottom, and the outer surrounding structure protects the iron core, winding one and winding two from the outside, thereby surrounding the iron core, winding one and winding two to provide structural protection.

[0015] A closed cavity is formed in the slot body of the outer surrounding structure, and a part of the iron core is immersed in insulating oil, thereby improving the heat dissipation effect of the iron core.

[0016] The pumping treatment component is used to circulate the insulating oil, so that the insulating oil heated up in the tank flows out of the tank, and the insulating oil cooled outside the tank flows into the tank, thereby maintaining the temperature difference between the insulating oil in the tank and the iron core, and improving the heat dissipation effect of the iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a three-phase integrated electronic transformer assembly from one perspective according to an embodiment of the present invention; Figure 2 A schematic diagram of another perspective of a three-phase integrated electronic transformer assembly according to an embodiment of the present invention; Figure 3 is a schematic diagram of a mutual inductance component; Figure 4 This is a schematic diagram of the enclosure structure; Figure 5 It is a schematic diagram of the armor protection component and part of the pumping and processing component; Figure 6 A schematic diagram of a portion of the pumping process assembly.

[0019] In the figure: 1-mutual inductance component; 2-enclosing structure; 3-protective pad; 4-limiting seat; 5-winding one; 6-iron core; 7-winding two; 8-armor protection component; 9-pumping processing component; 10-docking and connecting seat one; 11-tank body; 12-connecting built-in pipe; 13-protective fixing block; 14-fixed chassis; 15-connecting shaft rod; 16-limiting support platform; 17-insulating protection plate; 18-extension duct; 19-drainage duct one; 20-oil delivery seat one; 21-pump body; 22-docking and connecting seat two; 23-oil delivery seat two; 24-drainage duct two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The object of the present invention is to provide a three-phase integrated electronic transformer assembly, which can improve the heat dissipation effect of the iron core while providing armor protection.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Reference Figure 1 to Figure 6 This embodiment provides a three-phase integrated electronic mutual inductor assembly, including a mutual inductor assembly 1, an armor protection assembly 8 and a pumping processing assembly 9. The armor protection assembly 8 and the pumping processing assembly 9 form an enclosure structure 2, which surrounds the mutual inductor assembly 1.

[0024] The mutual inductance component 1 comprises an iron core 6, a winding 1 5, a winding 2 7 and an inner support structure. The two ends of the iron core 6 are respectively wound with the winding 1 5 and the winding 2 7, and the inner support structure is located inside the iron core 6 and fixedly connected to the iron core 6.

[0025] The armor protection assembly 8 includes a lower support structure and an outer surrounding structure. The lower support structure supports the inner support structure from the lower side, and the outer surrounding structure surrounds the iron core 6 from the outer side. The outer surrounding structure includes two slots 11 located opposite to each other, and the two slots 11 respectively accommodate one end of the iron core 6 wound with the winding 1 5 and the other end wound with the winding 2 7, and the slots of the slots 11 are closed.

[0026] The pumping processing assembly 9 includes a pump body 21 and an oil delivery structure. The two ports of the pump body 21 are port one and port two. The oil delivery structure is connected to the two ports of the pump body 21 respectively so that the insulating oil is delivered between the two ports of the pump body 21. The insulating oil delivered by the oil delivery structure passes through and fills the tank body 11 so that the end of the iron core 6 wound with the winding one 5 and the end of the iron core 6 wound with the winding two 7 are both immersed in the insulating oil. When the blades of the pump body 21 rotate forward, the oil flows out of port one and enters the oil into port two. When the blades of the pump body 21 rotate reversely, the oil flows into port one and enters the oil into port two.

[0027] The working principle of the three-phase integrated electronic transformer assembly in this embodiment is as follows: The inner supporting structure protects the iron core 6, winding one 5 and winding two 7 from the inside, the lower supporting structure protects the iron core 6, winding one 5 and winding two 7 from the bottom, and the outer surrounding structure protects the iron core 6, winding one 5 and winding two 7 from the outside, thereby surrounding the iron core 6, winding one 5 and winding two 7 to provide structural protection.

[0028] A closed cavity is formed in the slot body 11 of the outer surrounding structure, and a part of the iron core 6 is immersed in the insulating oil, thereby improving the heat dissipation effect of the iron core 6 .

[0029] The pumping processing component 9 is used to circulate the insulating oil, so that the insulating oil heated in the tank body 11 flows out of the tank body 11, and the insulating oil cooled outside the tank body 11 flows into the tank body 11, thereby maintaining the temperature difference between the insulating oil in the tank body 11 and the iron core 6, and improving the heat dissipation effect of the iron core 6.

[0030] As a possible example, in this embodiment, a detection device is installed on the wire connected to the winding 1 5 , so that the detection device is connected in parallel with the winding 1 5 .

[0031] The detection device can be used to perform voltage measurement and subsequent calculations in order to monitor the working status of the mutual inductance component 1 .

[0032] As a possible example, in this embodiment, the inner support structure includes a limit seat 4 and a protective pad 3. The limit seat 4 is located inside the iron core 6 and is fixedly connected to the iron core 6, and the upper end of the limit seat 4 is fixedly connected to the protective pad 3, and the upper end of the protective pad 3 is higher than the upper ends of the winding 1 5 and the winding 2 7.

[0033] Since the height of the protective pad 3 is higher than the winding 1 5 and the winding 2 7, when facing an impact from the upper side, the protective pad 3 first contacts the impacting object from the upper side, thereby protecting the iron core 6, the winding 1 5 and the winding 2 7 from the upper side.

[0034] As a possible example, in this embodiment, the lower support structure includes a fixed chassis 14, a position limiting support platform 16 and an insulating protection plate 17. The upper end of the fixed chassis 14 is fixedly connected to the position limiting support platform 16, and the upper end of the position limiting support platform 16 is fixedly connected to the insulating protection plate 17, and the insulating protection plate 17 supports the inner support structure from the lower side.

[0035] As a possible example, in this embodiment, the outer surrounding structure further includes two protective fixing blocks 13 that are positioned opposite to each other, and the protective fixing blocks 13 are located between the two slots 11 .

[0036] The two slots 11 and the two protective fixing blocks 13 form a square, so as to provide protection against lateral impacts in all directions, thereby preventing the iron core 6, the winding 1 5 and the winding 2 7 from being deformed or damaged under lateral impacts.

[0037] As a possible example, in this embodiment, the lower support structure further includes a connecting shaft 15 , the lower end of the connecting shaft 15 is fixedly connected to the fixed chassis 14 , and the upper end of the connecting shaft 15 is fixedly connected to the protective fixing block 13 .

[0038] In this embodiment, the protective fixing block 13 is not directly connected to the fixed chassis 14, but the connecting shaft 15 is used as an intermediate structure. Although the overall volume is increased, the fixed chassis 14 is also separated from the limit seat 4 by a certain distance, providing installation space for the limit support platform 16 and the insulating protection plate 17.

[0039] As a possible example, in this embodiment, the oil delivery structure includes an oil delivery seat 20, an oil delivery seat 23, a drainage duct 19, a drainage duct 24, an extension duct 18, a connecting built-in tube 12, a docking connecting seat 10, a connecting tube and a docking connecting seat 22.

[0040] From a port (i.e., port 1) of the pump body 21 to the direction of the tank body 11 accommodating the winding 1 5, the oil delivery seat 1 20, the drainage conduit 1 19, the extension conduit 18, and the connecting built-in pipe 12 are connected in sequence.

[0041] From a port (ie, port 1) of the pump body 21 to the tank body 11 accommodating the second winding 7, the second oil delivery seat 23, the second drainage conduit 24, the extension conduit 18, and the communication built-in pipe 12 are connected in sequence.

[0042] From the slot body 11 accommodating the winding 1 5 to the other port (ie, port 2) of the pump body 21, the docking connection seat 1 10, the connecting pipe, and the docking connection seat 2 22 are connected in sequence.

[0043] From the slot body 11 accommodating the second winding 7 to the other port (ie, the second port) of the pump body 21, the docking connection seat 1 10, the connecting pipe, and the docking connection seat 2 22 are connected in sequence.

[0044] In this embodiment, the communication between two adjacent components means that the two components are fixedly connected and internally communicated. The fixed connection enables the oil delivery structure to form a frame structure while delivering oil, thereby protecting the components inside.

[0045] As a possible example, in this embodiment, each tank body 11 corresponds to a plurality of connected built-in tubes 12. Specifically, the upper ends of the drainage tube 1 19 and the drainage tube 2 24 are both connected to the interface 1 of the three-way tube, and the interface 2 and the interface 3 of the three-way tube are each connected to an extension tube 18, and each extension tube 18 is connected to a connected built-in tube 12.

[0046] That is, in this embodiment, the number of the communicating internal tubes 12 and the number of the extending tubes 18 are both four.

[0047] It is understandable that those skilled in the art may also select other numbers of connecting built-in tubes 12 and extension conduits 18. In this case, the three-way tube should be replaced by an ordinary straight tube or curved tube with two ends, or a four-way tube, a five-way tube, etc.

[0048] As a possible example, in this embodiment, each tank body 11 corresponds to a connecting pipe and a second docking and connecting seat 22 .

[0049] That is, taking the oil outlet from the upper end of the tank body 11 as an example, the insulating oil of the two tank bodies 11 is not first collected into a main line and then flows into the pump body 21, but flows into the pump body 21 through respective branches (both branches are composed of connecting pipes and docking connecting seat 22).

[0050] As a possible example, in this embodiment, the docking connecting seat 10 and the docking connecting seat 2 22 are both square, and those skilled in the art may also select the docking connecting seat 10 and the docking connecting seat 2 22 of other shapes such as round.

[0051] Taking the case where oil is discharged from port 1 as an example, the flow path of the insulating oil in this embodiment is as follows: The insulating oil circulates in two branches, each of which has a tank 11 .

[0052] For the branch where the tank body 11 accommodating the winding 1 5 is located: the insulating oil flows out from the port 1 of the pump body 21, passes through the oil delivery seat 1 20, the drainage pipe 1 19, the extension pipe 18, and the connecting built-in pipe 12 in sequence, reaches the tank body 11, absorbs the heat of the iron core 6 in the tank body 11 and heats up, and then flows back to the port 2 of the pump body 21 through the docking connecting seat 1 10, the connecting pipe and the docking connecting seat 2 22.

[0053] For the branch where the tank body 11 accommodating the winding 2 7 is located: the insulating oil flows out from the port 1 of the pump body 21, passes through the oil delivery seat 2 23, the drainage pipe 2 24, the extension pipe 18, and the connecting built-in pipe 12 in sequence, reaches the tank body 11, absorbs the heat of the iron core 6 in the tank body 11 and heats up, and then flows back to the port 2 of the pump body 21 through the docking connecting seat 1 10, the connecting pipe and the docking connecting seat 2 22.

[0054] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A three-phase integrated electronic transformer assembly, characterized in that: include: A mutual inductance component, comprising an iron core, a winding 1, a winding 2 and an inner support structure; the two ends of the iron core are respectively wound with the winding 1 and the winding 2, and the inner support structure is located inside the iron core and fixedly connected to the iron core; The armor protection assembly comprises a lower support structure and an outer surrounding structure; the lower support structure supports the inner support structure from the lower side, and the outer surrounding structure surrounds the iron core from the outer side; the outer surrounding structure comprises two slots facing each other, and the two slots respectively accommodate one end of the iron core wound with the winding one and one end wound with the winding two, and the slot openings of the slots are closed; A pumping processing component includes a pump body and an oil delivery structure; the oil delivery structure is respectively connected to two ports of the pump body so that insulating oil can be delivered between the two ports of the pump body; the insulating oil delivered by the oil delivery structure passes through and fills the tank body, so that one end of the iron core wound with the winding one and one end of the iron core wound with the winding two are both immersed in the insulating oil.

2. The three-phase integrated electronic transformer assembly according to claim 1, characterized in that: A detection device is installed on the wire connected to the winding one, so that the detection device is connected in parallel with the winding one.

3. The three-phase integrated electronic transformer assembly according to claim 1, characterized in that: The inner supporting structure includes a limit seat and a protective pad; the limit seat is located on the inner side of the iron core and is fixedly connected to the iron core, the upper end of the limit seat is fixedly connected to the protective pad, and the upper end of the protective pad is higher than the upper ends of the winding one and the winding two.

4. The three-phase integrated electronic transformer assembly according to claim 1, characterized in that: The lower support structure includes a fixed chassis, a limit support platform and an insulating protection plate; the upper end of the fixed chassis is fixedly connected to the limit support platform, the upper end of the limit support platform is fixedly connected to the insulating protection plate, and the insulating protection plate supports the inner support structure from the lower side.

5. The three-phase integrated electronic transformer assembly according to claim 4, characterized in that: The outer surrounding structure also includes two protective fixing blocks that are positioned opposite to each other, and the protective fixing blocks are located between the two slots.

6. The three-phase integrated electronic transformer assembly according to claim 5, characterized in that: The lower supporting structure further comprises a connecting shaft, the lower end of which is fixedly connected to the fixed chassis, and the upper end of which is fixedly connected to the protective fixing block.

7. The three-phase integrated electronic transformer assembly according to claim 1, characterized in that: The oil delivery structure comprises an oil delivery seat 1, an oil delivery seat 2, a drainage conduit 1, a drainage conduit 2, an extension conduit, a connecting built-in pipe, a docking connecting seat 1, a connecting pipe and a docking connecting seat 2; From a port of the pump body to the tank body accommodating the winding 1, the oil delivery seat 1, the drainage conduit 1, the extension conduit, and the communication built-in pipe are connected in sequence; From one port of the pump body to the direction of the tank body accommodating the second winding, the second oil delivery seat, the second drainage conduit, the extension conduit, and the communication built-in pipe are connected in sequence; From the slot body accommodating the winding 1 to the other port of the pump body, the butt-joint connection seat 1, the connecting pipe, and the butt-joint connection seat 2 are connected in sequence; From the slot body accommodating the second winding to the other port of the pump body, the first docking and connecting seat, the connecting pipe, and the second docking and connecting seat are connected in sequence.

8. The three-phase integrated electronic transformer assembly according to claim 7, characterized in that: Each of the trough bodies corresponds to a plurality of the communicating built-in pipes.

9. The three-phase integrated electronic transformer assembly according to claim 7, characterized in that: Each of the trough bodies corresponds to one of the connecting pipes and one of the docking and connecting seats 2.

10. The three-phase integrated electronic transformer assembly according to claim 7, characterized in that: The first butt-joint connecting seat and the second butt-joint connecting seat are both square.

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