Electric reactor
By setting the cross-sectional area of the first core of the reactor to the preset percentage of the second core, and by designing the multi-layer core and connectors, the problem of excess performance of small inductance reactors in the reactor is solved, and the resources are realized Optimal utilization and reduction of reactor size.
Patent Information
- Application Number
- CN202323532437.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-25
AI Technical Summary
At this stage, the core cross-sectional area of the small inductance and large inductance reactors is the same, resulting in excess performance of the small inductance reactor and waste of resources.
By setting the cross-sectional area of the first core to a preset percentage of the second core, the size and weight of the first core are reduced, the loss of the reactor is reduced, and a loop is formed through the design of the multi-layer core and the connector. , realize the function of the reactor.
It effectively reduces the loss and weight of the reactor, saves labor hours and labor costs, and at the same time reduces the overall size of the reactor, improving space utilization efficiency.
Smart Images
Figure CN222338046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power equipment, in particular to a reactor. Background Art
[0002] Power equipment is one of the indispensable equipment in various fields. With the expansion of the grid capacity of power equipment, the rated value of the system short-circuit capacity increases rapidly. In order to limit the short-circuit current of the transmission line and protect the power equipment, the reactor must be installed. The reactor can reduce the short-circuit current and keep the voltage of the system unchanged at the moment of short circuit. In addition, the reactor also has the functions of filtering and suppressing the influence of the medium-frequency component on the power frequency grid. At present, the reactor is mainly a conjugate integrated type, and the core cross-sectional area of the upper and lower large and small reactors is the same, and the inductance of the two is quite different, resulting in excess performance of the small inductance reactor, resulting in waste. Utility Model Content
[0003] The embodiment of the utility model provides a reactor to improve the performance of the reactor and avoid waste.
[0004] The utility model provides a reactor, which comprises:
[0005] An iron core, the iron core comprising a first iron core and a second iron core, the first iron core and the second iron core are arranged at an interval, and the cross-sectional area of the first iron core is a preset percentage of the cross-sectional area of the second iron core;
[0006] The first connecting member is used to connect the first iron core and the second iron core.
[0007] In the reactor provided by the utility model, a plurality of the first iron core and a plurality of the second iron core are provided, and the number of the first iron cores and the plurality of the second iron cores are respectively located on both sides of the first connecting member and are respectively fixedly connected to the first connecting member.
[0008] In the reactor provided by the present invention, a plurality of the first iron cores are arranged side by side, a plurality of the second iron cores are arranged side by side, and a plurality of the first iron cores and a plurality of the second iron cores are arranged side by side on both sides of the first connecting member respectively.
[0009] In the reactor provided by the utility model, the reactor further includes a third connecting member, which is arranged on a side of the second iron core away from the first connecting member and is fixedly connected to a plurality of the second iron cores.
[0010] In the reactor provided by the utility model, the first connecting member and the third connecting member both extend from the second iron core located at the most side end to the second iron core located at the other side end.
[0011] In the reactor provided by the utility model, the widths of the first connecting member and the third connecting member are consistent with the width of the second iron core.
[0012] In the reactor provided by the utility model, the reactor further includes a second connecting member, which is located on a side of the plurality of first iron cores away from the first connecting member and is fixedly connected to the plurality of first iron cores.
[0013] In the reactor provided by the utility model, the second connecting member extends from the first iron core located at the most side end to the first iron core located at the other side end.
[0014] In the reactor provided by the present invention, the width of the second connecting member is consistent with the width of the first iron core.
[0015] In the reactor provided by the utility model, the reactor further includes a coil, and the coil is wound around the outside of the first iron core and the second iron core.
[0016] The utility model provides a reactor, the reactor comprises an iron core and a first connecting member, the iron core comprises a first iron core and a second iron core, the first iron core and the second iron core are arranged at intervals, the cross-sectional area of the first iron core is a preset percentage of the cross-sectional area of the second iron core; the first connecting member is used to connect the first iron core and the second iron core. The application reduces the size of the first iron core and the weight of the iron core by setting the cross-sectional area of the first iron core to a preset percentage of the cross-sectional area of the second iron core, thereby reducing the loss of the reactor and avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a front view of the reactor in the embodiment of the utility model;
[0019] Figure 2 A side view of a reactor in an embodiment of the utility model;
[0020] Figure 3 Another side view of the reactor in the embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of a reactor in an embodiment of the utility model;
[0022] The reference numerals in the figures are:
[0023] 100, reactor; 110, small inductance reactor; 111, first iron core; 120, large inductance reactor; 121, second iron core; 130, first connecting piece; 140, second connecting piece; 150, third connecting piece. DETAILED DESCRIPTION
[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.
[0025] Reference Figures 1 to 4 , which shows an embodiment of the reactor 100 of the utility model. The reactor 100 includes an iron core and a first connector 130, the iron core includes a first iron core 111 and a second iron core 121, the first iron core 111 and the second iron core 121 are arranged at intervals, and the cross-sectional area of the first iron core 111 is a preset percentage of the cross-sectional area of the second iron core 121; the first connector 130 is used to connect the first iron core 111 and the second iron core 121.
[0026] Specifically, the reactor 100 includes an iron core, a conductor, a plate clamp, a copper bar, etc. Figure 1 and Figure 3 As shown in the figure, R, S, T, A, B, C, X, Y, and Z all represent the connection terminals of the reactor 100, and the specific inlet and outlet terminals of the reactor 100 are not limited; in this embodiment, the iron core includes a first iron core 111 and a second iron core 121, the first iron core 111 and the second iron core 121 are arranged at intervals, and the first iron core 111 is located above the second iron core 121, that is, the reactor 100 includes a small inductance reactor 110 and a large inductance reactor 111. The small inductance reactor 110 includes the first iron core 111, and the large inductance reactor 120 includes the second iron core 121. The small inductance reactor 110 is formed by stacking multiple layers of the first iron core 111, and the large inductance reactor 120 is formed by stacking multiple layers of the second iron core 121. The small inductance reactor 110 and the large inductance reactor 120 are connected by the first connecting member 130, and the first connecting member 130 is an iron yoke.
[0027] At present, the cross-sectional area of the iron core of the large-inductance reactor 120 and the small-inductance reactor 110 of the reactor 100 on the market is consistent. At this time, the inductance of the large-inductance reactor 120 and the small-inductance reactor 110 is quite different, and the performance of the small-inductance reactor 110 is excessive, resulting in waste. In order to reduce the performance loss of the small-inductance reactor 110, the cross-sectional area of the first iron core 111 is set to a preset percentage of the cross-sectional area of the second iron core 121 in this embodiment, and the weight of the reactor 100 is reduced by reducing the size of the first iron core 111, thereby reducing the loss of the reactor 100. In this embodiment, the specific numerical range of the preset percentage is 50%-70%. Considering the versatility of the reactor 100, the size of the first iron core 111 is not specifically limited here, that is, the user can adjust the size of the first iron core 111 according to the preset percentage. The cross-sectional area of the first core 111 is set according to actual needs, wherein the cross-sectional area refers to the area of the horizontal cross section of the first core 111 and the second core 121, that is, there is no restriction on the height of the small-inductance reactor 110 and the large-inductance reactor 120. By reducing the area of the horizontal cross section of the first core 111, the usage of the first core 111 is reduced, and the unit iron loss remains unchanged, thereby reducing the loss of the small-inductance reactor 110; at the same time, the small-inductance reactor 110 and the large-inductance reactor 120 are connected by the first connecting member 130, that is, the first connecting member 130 is located between the first core 111 and the second core 121, thereby forming a loop between the first core 111 and the second core 121, thereby realizing the function of the reactor 100.
[0028] In particular, the existing size of the first iron core 111 is 60*155cm, and the size of the first iron core 111 of the present application is 60*90cm. The cross-sectional area of the first iron core 111 is actually defined according to the needs. At the same time, the size of the iron core is one of the factors affecting the current density. In actual production, the current density is designed according to design requirements, such as the self-cooling and air-cooling of the machine, and the use of copper wire or aluminum wire in the machine, etc., which are designed with different current densities. Users can design different current densities according to actual needs to design different sizes of the iron core, and the sizes include length, width and height.
[0029] The present application reduces the size of the first core 111 and the weight of the core by setting the cross-sectional area of the first core 111 to a preset percentage of the cross-sectional area of the second core 121, thereby reducing the loss of the reactor 100; and saving the time and labor cost of assembling the reactor 100; and the overall size of the reactor 100 is reduced, which can effectively save space.
[0030] In one embodiment, referring to Figures 1 to 3The first iron core 111 and the second iron core 121 are each provided with a plurality of the same number, and the plurality of the first iron cores 111 and the plurality of the second iron cores 121 are respectively located on both sides of the first connecting member 130 and are respectively fixedly connected to the first connecting member 130 . Specifically, the reactor 100 includes a plurality of first iron cores 111 and a plurality of second iron cores 121, and the number of the two is the same. The first iron cores 111 and the second iron cores 121 are connected through the first connecting member 130, and the plurality of first iron cores 111 and the plurality of second iron cores 121 are respectively located on both sides of the first connecting member 130. In this embodiment, the plurality of first iron cores 111 are arranged on the upper side of the first connecting member 130, and the plurality of second iron cores 121 are arranged on the lower side of the first connecting member 130, and the first iron cores 111 and the second iron cores 121 are both connected to the first connecting member 130. The reactor 100 fixes the first iron core 111 and the second iron core 121 on both sides of the first connecting member 130 through the first connecting member 130, so that the outgoing line terminal and the incoming line terminal of the reactor 100 are located on both sides of the first connecting member 130, thereby ensuring that the structure of the reactor 100 is stable, and the connection method is simple and the assembly is easy.
[0031] In a specific embodiment, refer to Figures 1 to 3, multiple first iron cores 111 are arranged side by side, multiple second iron cores 121 are arranged side by side, and multiple first iron cores 111 and multiple second iron cores 121 are arranged side by side on both sides of the first connecting member 130 respectively. Specifically, multiple first iron cores 111 and multiple second iron cores 121 are each provided with multiple, multiple first iron cores 111 are arranged side by side horizontally, and multiple second iron cores 121 are also arranged side by side horizontally, and the first iron core 111 and the second iron core 121 are arranged side by side vertically, that is, multiple first iron cores 111 are in a row, and multiple second iron cores 121 are also in a row, and the first iron core 111 and the second iron core 121 are arranged correspondingly, wherein the first iron core 111 and the second iron core 121 can be arranged symmetrically or asymmetrically, which is not limited here; in this embodiment, the first iron core 111 is located at the second Above the iron core 121, each of the second iron cores 121 is provided with a first iron core 111, and one of the first iron cores 111 and the second iron core 121 is arranged side by side, and the first connecting member 130 is located between the first iron core 111 and the second iron core 121, and connects the first iron core 111 and the second iron core 121, so the small inductance reactor 110 and the large inductance reactor 120 of the reactor 100 are arranged in parallel and connected by the first connecting member 130, and the first connecting member 130 is an iron yoke, and the first iron core 111 and the second iron core 121 form a passage through the iron yoke. The double-layer design of the reactor 100 makes the use space of the reactor 100 smaller and the structural stability higher.
[0032] In one embodiment, referring to Figures 1 to 3 The reactor 100 further includes a third connector 150, which is disposed on a side of the second core 121 away from the first connector 130 and is fixedly connected to a plurality of the second cores 121. Specifically, the third connector 150 serves as an outlet or inlet of the second core 121, and the third connecting wire is disposed on the other side of the second core 121. The third connector 150 is located on a side of the second core 121 away from the first connector 130, that is, the first connector 130 is located above the second core 121, and the third connector 150 is located below the second core 121. The second core 121 is located between the first connector 130 and the third connector 150, and the bottoms of the plurality of the second cores 121 are all fixed on one side of the third connector 150, so that the reactor 100 forms a loop, and the structure is simple and ensures the structural stability of the second core 121.
[0033] In a specific embodiment, refer to Figures 1 to 3, the first connecting member 130 and the third connecting member 150 both extend from the second core 121 located at the most side end to the second core 121 located at the other side end. Specifically, the second core 121 is located between the first connecting member 130 and the third connecting member 150, and the second core 121 has a plurality of second cores 121, the plurality of second cores 121 are arranged side by side, and the plurality of second cores 121 are arranged at intervals, the second core 121 at the most side end refers to the second core 121 located at the leftmost or rightmost side among the plurality of second cores 121; the second core 121 at the other side end refers to the second core 121 that is farthest from the second core at the most side end along the arrangement direction of the second cores 121; the first connecting member 130 and the third connecting member 150 The three connecting members 150 extend from one side after the multiple second cores 121 are arranged side by side along the arrangement direction of the multiple second cores 121 to the other side after the multiple second cores 121 are arranged side by side, that is, the length of the first connecting member 130 and the third connecting member 150 is the distance between the outermost side of the second core 121 located on the leftmost side to the outermost side of the second core 121 located on the rightmost side, thereby ensuring the fixed connection between the first connecting member 130, the third connecting member 150 and the second core 121, and ensuring the operation of the large-inductance reactor 120 while avoiding waste.
[0034] In one embodiment, the width of the first connector 130 and the third connector 150 is consistent with the width of the second core 121 (not shown in the figure). Specifically, the first connector 130 and the third connector 150 fix the second core 121, and the width of the second core 121 is inconsistent with the width of the first core 111. The width of the first connector 130 and the third connector 150 is set to be consistent with the width of the second core 121, thereby ensuring that the first connector 130 and the third connector 150 fix the second core 121, thereby ensuring the structural stability of the reactor 100; and the cross-sectional area of the first core 111 is smaller than the cross-sectional area of the second core 121. In this embodiment, the first core 1 The width and length of 11 are smaller than the width and length of the second core 121, so the width and length of the first core 111 are smaller than the width and length of the first connector 130, that is, when the first core 111 is fixed to the first connector 130, part of the first connector 130 is located outside the fixed installation range of the first core 111, and the part of the first connector 130 protruding from the first core 111 can be well heat-dissipated. Therefore, this structure can increase the heat dissipation area of the first connector 130 above the large-inductance reactor 120 and reduce the temperature rise of the reactor 100.
[0035] In a specific embodiment, refer to Figures 1 to 3 The reactor 100 further includes a second connecting member 140 , which is located on a side of the plurality of first iron cores 111 away from the first connecting member 130 and is fixedly connected to the plurality of first iron cores 111 . Specifically, one side of the second core 121 is fixedly connected to the first connecting piece 130, and the other side of the second core 121 is fixedly connected to the second connecting piece 140. The second connecting piece 140 is used for the outlet or inlet of the first core 111, and the second connecting piece 140 is located on the side of the first core 111 away from the first connecting piece 130. In this embodiment, the first core 111 is located at the upper end of the first connecting piece 130, so the second connecting piece 140 is located at the upper end of the first core 111, and multiple first cores 111 are fixedly connected to the second connecting piece 140, the first core 111 is fixed between the first connecting piece 130 and the second connecting piece 140, the first connecting piece 130 and the second connecting piece 140 are both iron yokes, and the second connecting piece 140, the first core 111 and the first connecting piece 130 form a back, the structure is simple, and the structural stability of the first core 111 is ensured.
[0036] In one embodiment, referring to Figures 1 to 3 , the second connecting member 140 extends from the first core 111 located at the most side end to the first core 111 located at the other side end. Specifically, the second connecting member 140 is located on one side of the first core 111, and the first core 111 has a plurality of first cores 111, the plurality of first cores 111 are arranged side by side, and the plurality of first cores 111 are arranged at intervals, the first core 111 at the most side end refers to the first core 111 located at the leftmost or rightmost side among the plurality of first cores 111; the first core 111 at the other side end refers to the first core 111 that is farthest from the first core at the most side end along the arrangement direction of the first cores 111; the second connecting member 140 40 extends from one side after the first cores 111 are arranged side by side along the arrangement direction of the plurality of first cores 111 to the other side after the plurality of first cores 111 are arranged side by side, that is, the length of the second connecting member 140 is the distance between the outermost side of the first core 111 located on the leftmost side and the outermost side of the first core 111 located on the rightmost side, thereby ensuring the fixed connection between the second connecting member 140 and the first core 111, and ensuring the operation of the small-inductance reactor 110, while avoiding the waste of the second connecting member 140.
[0037] In a specific embodiment, the width of the second connecting member 140 is consistent with the width of the first core 111 (not shown in the figure). Specifically, the second connecting member 140 and the first connecting member 130 fix the first core 111, and the widths of the first core 111 and the second core 121 are inconsistent. The width of the second connecting member 140 is set to be consistent with the width of the first core 111, thereby ensuring that the second connecting member 140 fixes the first core 111, thereby ensuring the structural stability of the reactor 100; and the cross-sectional area of the first core 111 is smaller than the cross-sectional area of the second core 121. In this embodiment, the width and length of the first core 111 are both smaller than the width and length of the second core 121, so the cross-sectional area of the first connecting member 130 is larger than the cross-sectional area of the second connecting member 140. The cross-sectional area refers to the area of the length and width of the first connecting member 130 and the second connecting member 140. Compared with the consistent size of the iron yoke of the reactor 100 at this stage, the size of the second connecting member 140 in this embodiment is smaller than the size of the first connecting member 130, thereby saving production costs.
[0038] In one embodiment, the reactor 100 further includes a coil (not shown in the figure), which is wound around the outside of the first iron core 111 and the second iron core 121. Specifically, the reactor 100 further includes a coil, which is used to increase the inductance of the reactor 100, and is wound around the outside of the first iron core 111 and the second iron core 121. The coil is wound around the outside of each first iron core 111 and each second iron core 121. Since the cross-sectional area of the first iron core 111 is smaller than the cross-sectional area of the second iron core 121, the amount of the coil wound around the outside of the first iron core 111 is small, and the amount of the coil of the reactor 100 is reduced, which can reduce the cost of the coil, thereby reducing the production cost of the reactor 100, and can reduce the overall size and weight of the reactor 100; at the same time, the number of coils is reduced, but the current of the reactor 100 remains unchanged, thereby reducing the loss of the reactor 100.
[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A reactor, characterized in that: include: An iron core, the iron core comprising a first iron core and a second iron core, the first iron core and the second iron core are arranged at an interval, and the cross-sectional area of the first iron core is a preset percentage of the cross-sectional area of the second iron core; The first connecting member is used to connect the first iron core and the second iron core.
2. The reactor according to claim 1, characterized in that: The first iron core and the second iron core are provided in plurality and the number is the same. The plurality of the first iron cores and the plurality of the second iron cores are respectively located on both sides of the first connecting member and are respectively fixedly connected to the first connecting member.
3. The reactor according to claim 2, characterized in that: A plurality of the first iron cores are arranged side by side, a plurality of the second iron cores are arranged side by side, and a plurality of the first iron cores and a plurality of the second iron cores are arranged side by side on both sides of the first connecting member respectively.
4. The reactor according to claim 2, characterized in that: The reactor further includes a third connecting member, which is disposed on a side of the second iron core away from the first connecting member and is fixedly connected to the plurality of second iron cores.
5. The reactor according to claim 4, characterized in that: The first connecting member and the third connecting member both extend from the second iron core located at the most side end to the second iron core located at the other side end.
6. The reactor according to claim 4, characterized in that: The widths of the first connecting member and the third connecting member are consistent with the width of the second core.
7. The reactor according to claim 2, characterized in that: The reactor further includes a second connecting member, which is located on a side of the plurality of first iron cores away from the first connecting member and is fixedly connected to the plurality of first iron cores.
8. The reactor according to claim 7, characterized in that: The second connecting member extends from the first iron core located at the most side end to the first iron core located at the other side end.
9. The reactor according to claim 7, characterized in that: The width of the second connecting member is consistent with the width of the first core.
10. The reactor according to claim 1, characterized in that: The reactor further includes a coil wound around the outside of the first core and the second core.