Electric reactor with good ventilation and heat dissipation effects

Abstract

The utility model relates to an electric reactor with good ventilation and heat dissipation effects. Comprising an iron yoke, an iron core, a left-side coil winding and a right-side coil winding, the left-side coil winding and the right-side coil winding are installed on the iron core, cylindrical air channels are arranged between the left-side coil winding and the iron core and between the right-side coil winding and the iron core, and angle-shaped supporting strips are arranged between the cylindrical air channels and the four edges of the iron core. A plurality of straight supporting strips are arranged between the inner wall of the left side coil winding and the outer wall of the cylindrical air channel, and a plurality of straight supporting strips are arranged between the inner wall of the right side coil winding and the outer wall of the cylindrical air channel. A ventilation groove assembly is further installed between the iron core and the cylindrical air channel. Vertical ventilation channels are formed between the adjacent angle type supporting strips and between the adjacent straight type supporting strips, and the ventilation groove assembly is provided with longitudinal ventilation channels. The electric reactor is good in ventilation and heat dissipation effect, the heat dissipation effect is improved, heat shock borne by the coil winding is reduced, and the overheating problem is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of reactor technology, and in particular relates to a reactor with good ventilation and heat dissipation effect. Background Technology

[0002] Reactors are primarily used to limit current surges caused by sudden voltage changes in the power grid and operational overvoltages, smooth voltage spikes in the power supply voltage, or voltage defects generated during commutation. They effectively protect frequency converters and improve the power factor, preventing interference from the power grid and reducing harmonic current pollution to the power grid generated by the rectifier unit. They are now widely used in power grid systems. Structurally, a reactor includes an iron core and yoke, coil windings, and related structural components.

[0003] During operation, the coils within the winding of a reactor generate heat under the continuous action of high-frequency induced current, causing thermal shock to the cast coil. Therefore, effective heat dissipation is necessary to prevent excessive coil overheating and ensure the stability and safety of the reactor during operation. Existing reactors, limited by their structural design, have poor heat dissipation, leading to overheating issues in some high-frequency operating conditions, affecting stability and safety. Optimization of the reactor's structure is therefore required. Utility Model Content

[0004] The purpose of this invention is to provide a reactor with good ventilation and heat dissipation, thereby improving heat dissipation, reducing the heat impact on the coil winding, and avoiding overheating problems.

[0005] The technical solution adopted by this utility model is as follows: a reactor with good ventilation and heat dissipation effect, including an iron yoke, an iron core, and a left-side winding and a right-side winding installed on the iron core. A cylindrical air channel is provided between the left-side winding and the iron core, and between the right-side winding and the iron core. An angular support strip is provided between the cylindrical air channel and the four edges of the iron core. Multiple straight support strips are provided between the inner wall of the left-side winding and the outer wall of the cylindrical air channel, and between the inner wall of the right-side winding and the outer wall of the cylindrical air channel. A ventilation slot assembly is also installed between the iron core and the cylindrical air channel. Vertical ventilation channels are formed between adjacent angular support strips and between adjacent straight support strips. The ventilation slot assembly has a longitudinal ventilation channel.

[0006] Preferably, the left ventilation slot assembly is located inside the left terminal of the left winding of the left coil, and the right ventilation slot assembly is located inside the right terminal of the right winding of the right coil.

[0007] Preferably, the ventilation slot assembly includes a substrate and a ventilation slot with a C-shaped cross-section located on the outside of the substrate, the opening of the ventilation slot facing outward, and the two side edges of the substrate abutting against the corner support bars on both sides.

[0008] Preferably, an upper base assembly is installed on the upper yoke, and a lower base assembly is installed on the lower yoke. The upper base assembly and the lower base assembly are fixedly connected by assembly bolts.

[0009] Preferably, the upper base assembly includes an upper base, which is an inverted C-shaped steel with an upper yoke located inside its groove, and upper preload bolts are provided on the left and right sides of the upper base.

[0010] Preferably, the lower base assembly includes a rear connecting beam and a front connecting beam, both of which are angle steel. Lower pre-tightening bolts are provided between the left and right sides of both the rear connecting beam and the front connecting beam. A left support beam is installed on the lower left side of both the rear connecting beam and the front connecting beam using assembly short bolts, and a right support beam is installed on the lower right side using assembly short bolts. Both the left and right support beams are C-shaped steel.

[0011] Preferably, upper connecting plates with connecting holes are installed on both sides of the middle part of the upper base, and connecting holes are provided in the middle of the rear connecting beam and the front connecting beam. Assembly bolts are inserted into the connecting holes of the upper connecting plate and the connecting beam below it.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention provides a reactor with good ventilation and heat dissipation. Compared with existing reactors, the reactor in this invention has a cylindrical air channel between the iron core and the coil winding, and corner support bars are set between the four edges of the iron core and the cylindrical air channel. Straight support bars are set between the cylindrical air channel and the coil winding, and a ventilation slot assembly is provided. Vertical ventilation channels are formed between adjacent corner support bars and between adjacent straight support bars. The ventilation slot assembly has a longitudinal ventilation channel. In this way, the reactor has a vertical ventilation and heat dissipation channel. The airflow in the ventilation and heat dissipation channel can carry away the heat generated by the reactor during operation, improve the heat dissipation effect, reduce the heat impact on the coil winding, and avoid overheating problems.

[0014] In addition, the corner support bars, straight support bars, and ventilation slot components also play a technical role in increasing the insulation distance and maintaining its stability, thereby improving the product quality of the reactor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model, viewed from above;

[0016] Figure 2 yes Figure 1 A structural schematic diagram of the middle iron core, upper yoke, and lower yoke, viewed from below;

[0017] Figure 3 yes Figure 1A structural schematic diagram of the cast-in-place winding, iron core, and ventilation slot assembly, viewed from above.

[0018] Figure 4 yes Figure 1 A structural schematic diagram of the cast-in-place winding, iron core, and ventilation slot assembly, viewed from below.

[0019] In the picture:

[0020] 1. Upper preload bolt; 2. Yoke; 3. Upper connecting plate; 4. Assembly long bolt; 5. Upper base; 6. Right side terminal block; 7. Right side coil winding; 8. Left side coil winding; 9. Rear connecting beam; 10. Lower preload bolt; 11. Left side support beam; 12. Assembly short bolt; 13. Left side terminal block; 14. Front connecting beam; 15. Right side support beam; 16. Angle support bar; 17. Cylindrical air duct; 18. Straight support bar; 19. Ventilation slot assembly; 20. Iron core. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0022] Please see Figure 1 The reactor of this utility model with good ventilation and heat dissipation includes an iron yoke 2, an iron core 20, and a left-side winding 8 and a right-side winding 7 installed on the iron core 20.

[0023] like Figure 2 As shown, the upper yoke 2 is fixed between the upper ends of the two iron cores 20 on the left and right, and the lower yoke 2 is fixed between the lower ends of the two iron cores 20 on the left and right. The left coil winding 8 and the right coil winding 7 have the same structure, both being cylindrical structures composed of internal winding coils and integrally cast coils. The winding coil of the left coil winding 8 has two exposed upper and lower left-side terminals 13, and the winding coil of the right coil winding 7 has two exposed upper and lower right-side terminals 6.

[0024] Please see Figure 1 , Figure 3 and Figure 4 It can be seen that:

[0025] Cylindrical air passages 17 are provided between the left winding 8 and the core 20, and between the right winding 7 and the core 20. Angular support bars 16 are provided between the four edges of the cylindrical air passages 17 and the core 20. Multiple straight support bars 18 are provided between the inner wall of the left winding 8 and the outer wall of the cylindrical air passage 17, and between the inner wall of the right winding 7 and the outer wall of the cylindrical air passage 17. A ventilation slot assembly 19 is also installed between the core 20 and the cylindrical air passage 17. Vertical ventilation passages are formed between adjacent angular support bars 16 and adjacent straight support bars 18. The ventilation slot assembly 19 has longitudinal ventilation channels. In this way, the reactor has vertical ventilation and heat dissipation channels. The airflow flowing within these channels can carry away the heat generated during reactor operation, improving heat dissipation and reducing the heat impact on the left winding 8 and the right winding 7, thus preventing overheating.

[0026] In this embodiment, the left ventilation slot assembly 19 is located inside the left terminal 13 of the left coil winding 8, and the right ventilation slot assembly 19 is located inside the right terminal 6 of the right coil winding 7. This structural design takes into account that the coil winding is subjected to greater heat impact on the terminal side, and therefore, by setting the ventilation slot assembly 19, a ventilation and heat dissipation channel with a larger cross-sectional size is constructed inside the terminal.

[0027] In this embodiment, the ventilation slot assembly 19 includes a substrate and a ventilation slot with a C-shaped cross-section located on the outside of the substrate. The opening of the ventilation slot faces outward, that is, towards the wiring terminal. The two side edges of the substrate abut against the corner support strips 16 on both sides, and the outer surface of the ventilation slot abuts against the inner surface of the cylindrical air passage 17.

[0028] An upper base assembly is mounted on the upper yoke 2, and a lower base assembly is mounted on the lower yoke 2. The upper and lower base assemblies are fixedly connected by assembly bolts 12. The upper and lower base assemblies are used to strengthen the structural strength of the reactor body and to secure the reactor during application.

[0029] In this embodiment, the upper base assembly includes an upper base 5, which is an inverted C-shaped steel. The upper yoke 2 is located inside its groove. Upper pre-tightening bolts 1 are provided on the left and right sides of the upper base 5. The upper pre-tightening bolts 1 cause the upper base 5 to exert a moderate clamping effect on the upper yoke 2.

[0030] In this embodiment, the lower base assembly includes a rear connecting beam 9 and a front connecting beam 14, both of which are angle steel. Lower pre-tightening bolts 10 are provided between the left and right sides of the rear connecting beam 9 and the front connecting beam 14. The lower pre-tightening bolts 10 cause the rear connecting beam 9 and the front connecting beam 14 to exert a moderate clamping effect on the lower yoke 2. A left support beam 11 is installed on the lower left side of the rear connecting beam 9 and the front connecting beam 14 using assembly short bolts 12, and a right support beam 15 is installed on the lower right side using assembly short bolts 12. Both the left support beam 11 and the right support beam 15 are C-shaped steel with the slot facing outward.

[0031] Furthermore, upper connecting plates 3 with connecting holes are installed on both sides of the middle part of the upper base 5. Connecting holes are provided in the middle of the rear connecting beam 9 and the front connecting beam 14. The front assembly bolts 12 pass through the connecting holes of the upper connecting plate 3 and the front connecting beam 14 below it, and the rear assembly bolts 12 pass through the connecting holes of the upper connecting plate 3 and the rear connecting beam 9 below it.

Claims

1. A reactor with good ventilation and heat dissipation, characterized in that: The system includes an iron yoke (2), an iron core (20), and a left-side wire winding (8) and a right-side wire winding (7) installed on the iron core (20). A cylindrical air passage (17) is provided between the left-side wire winding (8) and the iron core (20) and between the right-side wire winding (7) and the iron core (20). An angular support strip (16) is provided between the cylindrical air passage (17) and the four edges of the iron core (20). Multiple straight support strips (18) are provided between the inner wall of the left-side wire winding (8) and the outer wall of its cylindrical air passage (17) and between the inner wall of the right-side wire winding (7) and the outer wall of its cylindrical air passage (17). A ventilation slot assembly (19) is also installed between the iron core (20) and the cylindrical air passage (17). Vertical ventilation channels are formed between adjacent angular support strips (16) and between adjacent straight support strips (18). The ventilation slot assembly (19) has a longitudinal ventilation channel. The ventilation slot assembly (19) on the left is located inside the left terminal (13) of the left winding (8), and the ventilation slot assembly (19) on the right is located inside the right terminal (6) of the right winding (7). The ventilation slot assembly (19) includes a substrate and a ventilation slot with a C-shaped cross-section located on the outside of the substrate. The opening of the ventilation slot faces outward, and the two sides of the substrate abut against the corner support strips (16) on both sides.

2. The reactor with good ventilation and heat dissipation effect as described in claim 1, characterized in that: An upper base assembly is installed on the upper yoke (2), and a lower base assembly is installed on the lower yoke (2). The upper base assembly and the lower base assembly are fixedly connected by assembly bolts (4).

3. The reactor with good ventilation and heat dissipation effect as described in claim 2, characterized in that: The upper base assembly includes an upper base (5), which is an inverted C-shaped steel with an upper yoke (2) located inside its groove. Upper preload bolts (1) are provided on the left and right sides of the upper base (5).

4. The reactor with good ventilation and heat dissipation effect as described in claim 3, characterized in that: The lower base assembly includes a rear connecting beam (9) and a front connecting beam (14), both of which are angle steel. Lower pre-tightening bolts (10) are provided between the left and right sides of the rear connecting beam (9) and the front connecting beam (14). A left support beam (11) is installed on the lower left side of the rear connecting beam (9) and the front connecting beam (14) using assembly short bolts (12), and a right support beam (15) is installed on the lower right side using assembly short bolts (12). Both the left support beam (11) and the right support beam (15) are C-shaped steel.

5. The reactor with good ventilation and heat dissipation effect as described in claim 4, characterized in that: Upper connecting plates (3) with connecting holes are installed on both sides of the middle part of the upper base (5). Connecting holes are provided in the middle of the rear connecting beam (9) and the front connecting beam (14). Assembly bolts (4) are inserted into the connecting holes of the upper connecting plate (3) and the connecting beam below it.

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