Electric reactor

Abstract

The utility model relates to an electric reactor which comprises a side column iron core, a side column clamping metal plate, a side column clamping bolt, an upper iron yoke, a lower iron yoke, an upper iron yoke clamping metal plate and a lower iron yoke clamping metal plate. The side column clamping metal plates are installed on the two sides of the side column iron core through the side column clamping bolts, and one end of each metal plate is longer than the iron core, so that the iron core is not exposed. And the other end is shorter than the iron core, so that the iron core is exposed. The exposed part of the iron core is attached to the upper iron yoke through an upper iron yoke clamping metal plate; and the unexposed part is attached to the lower iron yoke. The exposed part is located at the top and the side surface is attached to the upper yoke; the unexposed part is located at the bottom, and the bottom face is attached to the lower iron yoke. The technical problem that magnetic resistance is increased due to the fact that air gaps are formed among the side columns, the upper iron yoke and the lower iron yoke is solved.

Description

Technical Field

[0001] This application belongs to the technical field of transformer settings, and particularly relates to a reactor. Background Art

[0002] Three-phase four-column reactors have been widely used in systems such as photovoltaic and energy storage due to their good inductance stability. However, there are some obvious defects in the conventional product structure in the prior art, mainly concentrated in the placement and fixing methods of the side columns, resulting in an easy formation of natural air gaps between the side columns and the upper and lower yokes, thereby increasing the magnetic resistance of the side columns.

[0003] Currently, there are mainly two structural methods for three-phase four-column reactors:

[0004] Structural method one, see Figure 2 :

[0005] The side column iron core is attached to the side surfaces of the upper and lower yokes. Due to the natural sinking of the side columns, this structure has two main defects:

[0006] The side columns naturally sink, resulting in a structural defect.

[0007] When the side columns are attached to the side surfaces of the upper and lower yokes, it is difficult to achieve a tight fit, thus forming an air gap between the side columns and the iron cores of the upper and lower yokes, leading to an increase in magnetic resistance.

[0008] Structural method two, see Figure 1 :

[0009] The height difference between the middle column and the side columns (mainly caused by the physical air gap difference in the middle column) results in the actual height of the side columns being different from the height of the middle column, thus forming an air gap between the side columns and the iron core of the upper yoke. This structural method also leads to an increase in magnetic resistance.

[0010] Both of the above two structural methods have the problem of increased magnetic resistance caused by the formation of air gaps between the side columns and the iron cores of the upper and lower yokes, thus affecting the inductance stability and overall performance of the reactor. In order to overcome these defects, it is necessary to improve the structure of the three-phase four-column reactor to ensure a tight fit between the side columns and the iron cores of the upper and lower yokes, thereby reducing the air gap, lowering the magnetic resistance, and improving the performance and stability of the reactor. Utility Model Content

[0011] In view of the deficiencies in the related art, the present utility model provides a reactor, which solves the technical problem of increased magnetic resistance caused by the formation of air gaps between the side columns and the iron cores of the upper and lower yokes in the prior art.

[0012] In a possible implementation, a reactor is provided, which includes side column iron cores, side column clamping sheet metals, side column clamping bolts, upper yokes, lower yokes, upper yoke clamping sheet metals, and lower yoke clamping sheet metals; the side column clamping sheet metals are installed on both sides of the side column iron cores through the side column clamping bolts, one end of the side column clamping sheet metal is longer than the side column iron core, so that one end of the side column iron core is not exposed outside the side column clamping sheet metal; the other end of the side column clamping sheet metal is shorter than the side column iron core, such that the other end of the side column iron core is exposed outside the side column clamping sheet metal; the exposed part of the side column iron core is fitted and installed with the upper yoke through the upper yoke clamping sheet metal; one end of the side column clamping sheet metal that is longer than the side column iron core is connected to the lower yoke, and one end of the side column iron core that is not exposed outside the side column clamping sheet metal is fitted and installed with the lower yoke; one end of the side column iron core that is exposed outside the side column clamping sheet metal is located at the top of the side column iron core, and the side surface of the side column iron core is fitted and installed with the upper yoke; one end of the side column iron core that is not exposed outside the side column clamping sheet metal is located at the bottom of the side column iron core, and the bottom surface of the side column iron core is fitted and installed with the lower yoke; it further includes a middle column iron core, which is installed between the upper yoke and the lower yoke and arranged side by side with the side column iron cores, and the middle column iron core includes several stacked iron cores.

[0013] In a possible implementation, the upper yoke clamping sheet metal is installed on both sides of the upper yoke through clamping bolts.

[0014] In a possible implementation, the lower yoke clamping sheet metal is installed on both sides of the lower yoke through clamping bolts.

[0015] In a possible implementation, the side surface of the upper part of the side column iron core is coated with iron core glue and then fitted with the side surface of the upper yoke.

[0016] In a possible implementation, the reactor is a three-phase four-column reactor, and further includes: three middle column iron cores installed between the upper yoke and the lower yoke and arranged side by side with the side column iron cores.

[0017] In a possible implementation, it further includes a top sheet metal connecting two upper yoke clamping sheet metals, and a top sheet metal connecting two lower yoke clamping sheet metals.

[0018] In a possible implementation, it further includes: upper and lower tension bolts, which are connected through bolt mounting seats installed on the upper yoke clamping sheet metal and the lower yoke clamping sheet metal.

[0019] Based on the above technical solutions, for the reactor of the present utility model, one end of the side column clamping sheet metal is longer than the side column iron core, and the exposed part of the other end of the side column iron core is fitted with the upper yoke through the upper yoke clamping sheet metal. The side column clamping sheet metal is connected to the lower yoke below, forming an interlaced connection of the upper yoke, the lower yoke, and the side column iron core, ensuring the mechanical stability and fastening of the overall reactor, and enhancing the overall stability and reliability of the reactor. Description of the Drawings

[0020] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0021] Figure 1 is a schematic structural diagram of a reactor in an embodiment of the prior art;

[0022] Figure 2 is a schematic structural diagram of a reactor in another embodiment of the prior art;

[0023] Figure 3 is a schematic structural diagram of a reactor in an embodiment of the present utility model;

[0024] Figure 4 is a schematic diagram of the prefabricated structure of the side column of a reactor in an embodiment of the present utility model;

[0025] Figure 4a is Figure 4 the left view of;

[0026] Figure 4b is Figure 4 the perspective view of;

[0027] Figure 5 is a schematic diagram of the assembly of the side column and the upper and lower yokes of a reactor in an embodiment of the present utility model;

[0028] Figure 5a is Figure 5 the left view of;

[0029] Figure 5b is Figure 5 the perspective view of;

[0030] Figure 6 is a schematic diagram of the overall assembly structure of a reactor in an embodiment of the present utility model;

[0031] Figure 6a is Figure 6 the left view of;

[0032] Figure 6b is Figure 6 the perspective view of.

[0033] In the figures:

[0034] 1. Side column iron core; 2. Side column clamping sheet metal; 3. Side column clamping bolt; 4. Upper yoke; 5. Lower yoke; 6. Upper yoke clamping sheet metal; 7. Lower yoke clamping sheet metal; 8. Clamping bolt; 9. Middle column iron core; 10. Top sheet metal; 11. Bottom sheet metal; 12. Upper and lower tension bolts; 13. Bolt mounting seat; 14. Air gap; 17. Winding.Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0037] The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0038] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] Lower Figure 1 In the structural manner below, due to the height difference of the middle column (essentially caused by the difference in the physical air gap 14 of the middle column), the actual height of the middle column 9 is different from the height of the side column, resulting in an air gap between the side column and the upper yoke iron core, that is, the air gaps at a and b are too large.

[0040] Lower Figure 2 In the structural manner below, the side column iron cores of which are all attached to the upper and lower yoke sides by the side. First, because there is no base surface during the installation of the side column, the lower end surface is suspended and prone to tilt, and the side column naturally sinks, resulting in a structural defect; second, it causes the side column to be attached to the upper and lower yoke irons by the side, and it is very difficult to make the attachment tight, thus resulting in a naturally large air gap between the side column and the upper and lower yoke irons, that is, the air gaps at a and b are too large.

[0041] To solve the technical problem that the air gap formed between the side columns and the upper and lower yoke iron cores of the reactor in the prior art leads to an increase in magnetic resistance, the present application proposes a reactor.

[0042] See Figure 3 , Figure 4 , Figure 4a and Figure 4b , in a possible implementation, the reactor includes side column iron cores 1, side column clamping sheet metals 2, side column clamping bolts 3, upper yoke 4, lower yoke 5, upper yoke clamping sheet metals 6, and lower yoke clamping sheet metals 7; the side column clamping sheet metals 2 are installed on both sides of the side column iron cores 1 through the side column clamping bolts 3, one end of the side column clamping sheet metals 2 is longer than the side column iron cores 1, so that one end of the side column iron cores 1 does not expose the side column clamping sheet metals 2; the other end of the side column clamping sheet metals 2 is shorter than the side column iron cores 1, so that the other end of the side column iron cores 1 exposes the side column clamping sheet metals 2; the exposed part of the side column iron cores 1 is fitted and installed with the upper yoke 4 through the upper yoke clamping sheet metals 6; one end of the side column clamping sheet metals 2 that is longer than the side column iron cores 1 is connected to the lower yoke 5, and one end of the side column iron cores 1 that does not expose the side column clamping sheet metals 2 is fitted and installed with the lower yoke 5; one end of the side column iron cores 1 that exposes the side column clamping sheet metals 2 is located at the top of the side column iron cores 1, and the side surface of the side column iron cores 1 is fitted and installed with the upper yoke 4; one end of the side column iron cores 1 that does not expose the side column clamping sheet metals 2 is located at the bottom of the side column iron cores 1, and the bottom surface of the side column iron cores 1 is fitted and installed with the lower yoke 5; it further includes a middle column iron core 9, which is installed between the upper yoke 4 and the lower yoke 5 and is arranged side by side with the side column iron cores 1, and the middle column iron core 9 includes several stacked iron cores.

[0043] In this implementation, the stability of the structure of the reactor is achieved through the combination of the side column iron cores 1, the side column clamping sheet metals 2, and the side column clamping bolts 3. One end of the side column clamping sheet metals 2 is longer than the side column iron cores 1, while the exposed part of the other end of the side column iron cores 1 is fitted with the upper yoke 4 through the upper yoke clamping sheet metals 6, and the side column clamping sheet metals 2 are connected to the lower yoke 5 below, forming an interleaved connection of the upper yoke 4, the lower yoke 5, and the side column iron cores 1, ensuring the overall mechanical stability and tightness of the reactor. Such a setting ensures that the reactor can withstand greater mechanical stress during operation, and at the same time, it is also convenient for the installation and maintenance of the reactor.

[0044] This setting provides excellent structural stability and mechanical strength. Through the combination of sheet metal and bolts for fixation, the reactor can remain stable under various operating conditions, reducing structural damage caused by vibration and stress. At the same time, the tight fit of the upper and lower yokes with the side column iron cores increases the overall rigidity of the reactor and improves its impact resistance. The setting that one end of the side column iron cores completely covers the sheet metal also reduces the exposed area of the iron cores, reduces the influence of the external environment on the iron cores, and extends the service life of the reactor.

[0045] In a possible implementation, the upper yoke clamping sheet metal 6 is installed on both sides of the upper yoke 4 through clamping bolts 8.

[0046] The upper yoke clamping sheet metal 6 is fixed on both sides of the upper yoke 4 through the clamping bolts 8, so that the upper yoke clamping sheet metal 6 is tightly connected to the upper yoke 4, enhancing the stability and mechanical strength of the upper yoke 4. The clamping bolts 8 provide a strong clamping force to ensure that the upper yoke clamping sheet metal 6 will not loosen due to external forces, thus maintaining the stability of the overall structure of the reactor.

[0047] By fixing the upper yoke clamping sheet metal 6 through the clamping bolts 8, the fixing strength and vibration resistance of the upper yoke 4 are improved, ensuring the stability of the reactor during operation. Such a setting not only enhances the mechanical strength of the reactor, but also facilitates installation and maintenance, improving the overall reliability and service life of the reactor.

[0048] In a possible implementation, the lower yoke clamping sheet metal 7 is installed on both sides of the lower yoke 5 through clamping bolts 8.

[0049] The lower yoke clamping sheet metal 7 is fixed on both sides of the lower yoke 5 through the clamping bolts 8, so that the lower yoke clamping sheet metal 7 is tightly connected to the lower yoke 5, enhancing the stability and mechanical strength of the lower yoke 5. The clamping bolts 8 provide a strong clamping force to ensure that the lower yoke clamping sheet metal 7 will not loosen due to external forces, thus maintaining the stability of the overall structure of the reactor.

[0050] By fixing the lower yoke clamping sheet metal 7 through the clamping bolts 8, the fixing strength and vibration resistance of the lower yoke 5 are improved, ensuring the stability of the reactor during operation. Such a setting not only enhances the mechanical strength of the reactor, but also facilitates installation and maintenance, improving the overall reliability and service life of the reactor.

[0051] In a possible implementation, after applying core glue to the upper side of the side limb core 1, it is fitted to the side of the upper yoke 4.

[0052] In this implementation, by applying core glue to the upper side of the side limb core 1, that is, at the joint surface a between the side limb and the upper yoke, or at the joint surface b between the side limb and the lower yoke, the core glue plays a role of adhesion and fixation during installation, thus enhancing the tight combination between the side limb core 1 and the upper yoke 4, as well as with the lower yoke 5. The use of core glue increases the connection stability and sealing performance, preventing loosening and displacement caused by vibration and thermal expansion and contraction.

[0053] By using core glue, the adhesion between the side limb core 1 and the upper yoke 4 is enhanced, improving the overall mechanical strength and stability of the reactor. The use of core glue also effectively prevents the entry of air and moisture, reducing oxidation and corrosion inside the reactor and extending the service life of the equipment.

[0054] In a possible implementation, the reactor is a three-phase four-column reactor, and there are three middle column cores 9 arranged side by side with the side column cores 1 between the upper yoke 4 and the lower yoke 5.

[0055] In this implementation, the reactor has a three-phase four-column structure, and the side column cores 1 and the three middle column cores 9 are arranged side by side between the upper yoke 4 and the lower yoke 5. This arrangement enables each phase current to pass through the corresponding core respectively, improving the electromagnetic performance and overall efficiency of the reactor. The addition of the middle column cores 9 enhances the uniformity and stability of the magnetic circuit and optimizes the magnetic field distribution of the reactor.

[0056] By adopting the three-phase four-column structure, the electromagnetic performance and efficiency of the reactor are improved, and the stability and reliability of the equipment are enhanced. Each phase current passes through an independent core, reducing the interference between phases and leakage magnetic flux, optimizing the distribution of the electromagnetic field, and improving the performance indicators of the reactor.

[0057] See Figure 6 、 Figure 6a and Figure 6b In a possible implementation, it further includes a top sheet metal 10 connecting the two upper yoke clamping sheet metals 6 and a bottom sheet metal 11 connecting the two lower yoke clamping sheet metals 7.

[0058] In this implementation, the upper yoke clamping sheet metal 6 and the lower yoke clamping sheet metal 7 are connected through the top sheet metal 10 and the bottom sheet metal 11 to form an integral structural framework. The addition of the top sheet metal 10 and the bottom sheet metal 11 enhances the overall mechanical strength and stability of the reactor, ensuring the tight connection and coordinated operation between various parts.

[0059] By adding the top sheet metal 10 and the bottom sheet metal 11, the overall structural strength and stability of the reactor are improved, reducing the displacement and vibration between components, and increasing the reliability and service life of the equipment. Such an arrangement also facilitates the installation and maintenance of the reactor, improving the overall performance of the equipment.

[0060] In a possible implementation, it further includes upper and lower tension bolts 12, which are connected through bolt mounting seats 13 installed on the upper yoke clamping sheet metal 6 and the lower yoke clamping sheet metal 7.

[0061] In this implementation, the upper and lower tension bolts 12 are connected to the upper yoke clamping sheet metal 6 and the lower yoke clamping sheet metal 7 through the bolt mounting seats 13 to form an integral tension structure. The addition of the upper and lower tension bolts 12 provides an additional tension force to ensure the tight connection between the upper yoke clamping sheet metal 6 and the lower yoke clamping sheet metal 7, enhancing the overall mechanical strength and stability of the reactor.

[0062] By adding upper and lower tension bolts 12, the overall structural strength and stability of the reactor are improved, the displacement and vibration between components are reduced, and the reliability and service life of the equipment are enhanced. Such a setting also facilitates the installation and maintenance of the reactor and improves the overall performance of the equipment.

[0063] The reactor according to an embodiment of the present utility model is described as follows:

[0064] 1. Style of side column structure:

[0065] When manufacturing the side column, it includes a side column iron core 1, a side column clamping sheet metal 2, and a side column clamping bolt 3. Among them, the side column clamping sheet metal 2 and the side column iron core 1 adopt a "dislocation" method, with a part of the iron core exposed at the upper part and the length of the lower clamping sheet metal extended. The clamping bolt fixes the side column iron core and the side column clamping sheet metal into one body. See Figure 4 、 4a and 4b.

[0066] 2. Assembly of the side column with the upper and lower yoke iron cores / upper yoke and lower yoke:

[0067] As follows Figure 5 , Figure 5a and Figure 5b , the side column iron core 1 is no longer placed between the upper and lower iron cores (i.e., as in Figure 1 ), or outside the upper and lower yokes (such as Figure 2 ). Instead, the method of "the lower yoke iron core is slightly longer, the upper yoke iron core is slightly shorter, the lower yoke clamping sheet metal is slightly shorter, and the upper yoke clamping sheet metal is slightly longer" is adopted. After the side column iron core is fastened by its own clamping sheet metal, the lower end face fits the lower yoke iron core, and the clamping sheet metal catches the slightly longer lower yoke. After applying iron core glue to the upper side surface, it fits the side surface of the upper yoke and is clamped by the slightly longer upper yoke clamping sheet metal.

[0068] When actually assembling the clamping bolt at the installation place of the side column iron core 1 and the upper yoke clamping sheet metal 6, it is first pre-fastened. After Figure 6b the overall shaping is completed and the upper and lower tension bolts 12 are fastened, it is finally fastened.

[0069] The above Figure 5 、 Figure 5a and Figure 5b are the schematic diagrams of the cooperation between the upper and lower yoke iron cores and the side column iron core. The actual assembly effect of the middle column with the winding 17 is as in Figure 6 、 Figure 6a and Figure 6b , cooperating with the top sheet metal at the upper yoke, the bottom sheet metal at the lower yoke, and the upper and lower tension rods. The overall cooperation forms a complete whole.

[0070] The reactor of the present utility model can effectively solve the problem of "excessive natural air gap 14 in the side columns" caused by the common structure of the three-phase four-column reactor, reduce the magnetic resistance caused by the assembly of the side column structure, and improve the electromagnetic performance of the product.

[0071] Finally, it should be noted that the embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts between the embodiments, reference can be made to each other.

[0072] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that modifications can still be made to the specific implementation manners of the present application or equivalent replacements can be made to some technical features without departing from the spirit of the technical solutions of the present application, and they should all be covered within the scope of the technical solutions claimed in the present application.

Claims

1. A reactor, characterized in that: It comprises a side column iron core (1), a side column clamping sheet metal (2), a side column clamping bolt (3), an upper iron yoke (4), a lower iron yoke (5), an upper iron yoke clamping sheet metal (6) and a lower iron yoke clamping sheet metal (7); The side column clamping sheet metal (2) is installed on both sides of the side column iron core (1) through the side column clamping bolts (3); one end of the side column clamping sheet metal (2) is longer than the side column iron core (1), so that the side column iron core (1) at one end does not protrude from the side column clamping sheet metal (2); the other end of the side column clamping sheet metal (2) is shorter than the side column iron core (1), so that the side column iron core (1) at the other end protrudes from the side column clamping sheet metal (2); The exposed portion of the side column iron core (1) is fitted and installed with the upper iron yoke (4) through the upper iron yoke clamping sheet metal (6); One end of the side column clamping sheet metal (2) that is longer than the side column iron core (1) is connected to the lower iron yoke (5), and one end of the side column iron core (1) that is not exposed from the side column clamping sheet metal (2) is fitted and installed with the lower iron yoke (5); One end of the side column iron core (1) exposed from the side column clamping sheet metal (2) is located at the top of the side column iron core (1), and the side surface of the side column iron core (1) is fitted with the upper iron yoke (4); The end of the side column iron core (1) that is not exposed from the side column clamping sheet metal (2) is located at the bottom of the side column iron core (1), and the bottom surface of the side column iron core (1) is fitted and installed with the lower iron yoke (5); It also includes a middle column iron core (9), which is installed between the upper iron yoke (4) and the lower iron yoke (5) and arranged side by side with the side column iron core (1). The middle column iron core (9) includes a plurality of stacked iron core sections.

2. The reactor according to claim 1, characterized in that: The upper iron yoke clamping sheet metal (6) is installed on both sides of the upper iron yoke (4) through clamping bolts (8).

3. The reactor according to claim 2, characterized in that: The lower iron yoke clamping sheet metal (7) is installed on both sides of the lower iron yoke (5) through clamping bolts (8).

4. The reactor according to claim 3, characterized in that: The upper side of the side column iron core (1) is coated with iron core glue and then attached to the side of the upper iron yoke (4).

5. The reactor according to claim 4, characterized in that: The reactor is a three-phase four-column reactor, and has three middle column iron cores (9) installed between an upper iron yoke (4) and a lower iron yoke (5) and arranged side by side with the side column iron cores (1).

6. The reactor according to claim 5, characterized in that: It also includes a top sheet metal (10) connecting two upper iron yoke clamping sheet metals (6), and a bottom sheet metal (11) connecting two lower iron yoke clamping sheet metals (7).

7. The reactor according to claim 6, characterized in that: Also includes: The upper and lower tension bolts (12) are connected via bolt mounting seats (13) mounted on the upper iron yoke clamping sheet metal (6) and the lower iron yoke clamping sheet metal (7).

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