Stepless adjustable reactor
By designing a steplessly adjustable reactor and using an electric push rod and control system to adjust the air gap of the iron core, the problem of shutdown and production stoppage when reactor parameters change was solved, realizing dynamic adjustment of reactor parameters, saving costs and improving the stability and insulation performance of the reactor.
Patent Information
- Application Number
- CN202422883454.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing reactors are difficult to adapt to changes in operating parameters, resulting in long downtime and high replacement costs.
A stepless adjustable reactor was designed. By adjusting the air gap between the upper and lower iron cores, the reactor parameters can be dynamically adjusted. The stepless adjustment is achieved by using an electric push rod and a control system, which avoids production stoppages due to parameter adjustments and eliminates the need to replace the reactor.
This enables dynamic adjustment of reactor parameters, avoiding downtime and production stoppages, saving production costs, improving economic efficiency, and enhancing the stability and insulation performance of the reactor.
Smart Images
Figure CN223450662U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the electric power field, concretely relates to the electric reactor technology. BACKGROUND
[0002] The electric reactor is widely used in the electric power field because of its functions of limiting system short-circuit current and compensating capacitance current.
[0003] The existing electric reactor prevents the parameters from drifting due to temperature reasons to stabilize the work of the electric reactor, various heat dissipation measures are taken for the electric reactor, and the iron core is reinforced to prevent the air gap from changing in the work, thereby solving the problem of unstable magnetic flux leading to large output voltage fluctuation.
[0004] However, in some working occasions, the working parameters of the electric reactor need to be changed, the above design method is difficult to adapt to this requirement, and only the replacement of the electric reactor can be used to adapt, resulting in long downtime and high replacement cost. INVENTION CONTENTS
[0005] The utility model aims at providing the electric reactor of infinitely adjustable to solve at least one of the above technical problems.
[0006] The technical problem solved by the utility model can be realized by the following technical scheme:
[0007] The electric reactor of infinitely adjustable comprises a rectangular iron core, a coil is wound on the left side of the rectangular iron core, another coil is wound on the right side of the rectangular iron core, the rectangular iron core comprises an upper iron core and a lower iron core, the upper iron core and the lower iron core are U-shaped silicon steel sheet laminated iron cores, and the bottom end of the U-shaped bottom end is the bottom end of the upper iron core and the lower iron core;
[0008] Further comprising an electric reactor air gap adjusting mechanism for adjusting the air gap spacing of the upper iron core and the lower iron core;
[0009] The electric reactor air gap adjusting mechanism comprises two steel plates, which are called upper clamping plates, the upper clamping plates clamp the bottom end of the upper iron core through locking bolts, and the opening of the upper iron core faces downward;
[0010] The electric reactor air gap adjusting mechanism further comprises another two steel plates, which are called lower clamping plates, the lower clamping plates clamp the bottom end of the lower iron core through locking bolts, and the opening of the lower iron core faces upward;
[0011] Two support rods are welded at the two ends of the lower clamping plate, the upper ends of the two support rods are threaded ends with threads, and the threaded ends are provided with upper and lower nuts;
[0012] The two ends of the upper clamping plate are provided with through holes, the two support rods pass through the through holes, and the upper clamping plate is clamped between the upper and lower nuts;
[0013] The upper iron core and the lower iron core form a relative movable structure;
[0014] The left and right sides of the rectangular iron core are covered with insulating layers, and coils are wound on the insulating layers.
[0015] The upper iron core and the lower iron core are slidably sleeved in the insulating layer.
[0016] In the design, the lower iron core is clamped between two lower clamping plates, two ends of the two lower clamping plates are respectively welded with two support rods to form four upwardly fixed support rods, the upper iron core is clamped between two upper clamping plates, the two upper clamping plates pass through the four support rods and are clamped between upper and lower nuts, and the upper and lower iron cores form a relative movable adjustable structure.
[0017] Further, the insulating layer is a diphenyl ether rolled into a cylindrical shape.
[0018] In the design, the diphenyl ether as the insulating layer also has the beneficial effect of flame retardation.
[0019] Further, the side of the two upper clamping plates facing the upper iron core is provided with an epoxy plate as an insulating plate, and the side of the two lower clamping plates facing the lower iron core is provided with an epoxy plate as an insulating plate.
[0020] In the design, the epoxy plate is used as an insulating plate, which has the beneficial effects that the epoxy plate has a certain hardness and wear resistance, and can protect the iron core; and the epoxy plate has heat resistance and chemical resistance, and has good insulation in a high-frequency magnetic field.
[0021] Further, the outer surface of the wire of the coil is sprayed with insulating paint, and the wire sprayed with the insulating paint is wound with a mica tape.
[0022] In the design, the outer surface of the wire of the coil is sprayed with insulating paint, and the wire sprayed with the insulating paint is wound with a mica tape, which has the beneficial effect of enhancing the insulation performance between the wires of the coil, preventing partial discharge caused by breakdown between the wires of the coil, and thus improving the performance of the reactor.
[0023] Further, the upper clamping plates are made of angle steel, the vertical edges of the two upper clamping plates are locked against the upper iron core by locking bolts, the horizontal edges of the two upper clamping plates are upward and flush with the upper iron core to form two upper end faces;
[0024] The lower clamping plates are also made of angle steel, the vertical edges of the two lower clamping plates are locked against the lower iron core by locking bolts, the horizontal edges of the two lower clamping plates are downward and flush with the lower iron core to form two lower end faces;
[0025] The support rods are welded to the back of the two ends of the two lower end faces;
[0026] The two ends of the two upper end faces are provided with through holes, the through holes pass through the support rods and abut against the lower nuts, and the upper nuts lock the upper end faces on the support rods.
[0027] In the above design, the angle steel has two mutually perpendicular planes, one plane is used for clamping the iron core, and the other plane is locked by the support rod, and the angle steel is used for the upper and lower clamping plates, which has the beneficial effect that after simple drilling processing, the angle steel can be used for clamping the upper and lower iron cores, and the air gap of the upper and lower iron cores can be adjusted by the height adjustment of the upper and lower nuts on the support rod, which has the beneficial effect of shortening the processing period and saving the manufacturing cost.
[0028] Further, one of the two upper end faces is provided with a terminal; a connecting block is also installed between the terminal and the upper end face, and the connecting block is made of a block of phenolic resin material.
[0029] In the above design, the connecting block made of phenolic resin material is installed between the terminal and the upper end face, which has the beneficial effect of avoiding local discharge or leakage caused by the breakdown of the terminal and the iron core in the high-voltage circuit, and improving the stability of the reactor.
[0030] Further, the terminal is provided with a cover that covers the terminal.
[0031] In the above design, by providing the cover that covers the terminal, the terminal is prevented from being corroded and broken by the liquid dropped on it, which causes the reactor to lose its function.
[0032] Further, the upper ends of the coils wound around the left and right sides of the rectangular iron core are connected to the upper clamping plates, and the lower ends are connected to the lower clamping plates.
[0033] The upper clamping plates and the lower clamping plates form a structure that determines the spacing between the stretched coil wires.
[0034] In the design, the two ends of the coil wound around the rectangular core are connected to the upper clamp plate and the lower clamp plate respectively, and the structure is realized when the height of the upper clamp plate is adjusted to stretch the coil, which has the beneficial effect that the spacing between the coil wires is changed by stretching the coil wires, thereby changing the magnetic flux of the reactor, realizing dynamic adjustment of the filtering performance of the reactor, avoiding shutdown due to adjustment of the parameters of the reactor, and more unnecessary to replace the reactor, saving the use cost and improving the economic benefit.
[0035] Further, the upper clamp plate is moved up and down by the two groups of locking bolts on the support rod to adjust the air gap and change the parameters of the reactor.
[0036] In the design, the upper clamp plate can adjust the height up and down by the two groups of locking bolts, thereby adjusting the air gap between the upper core and the lower core and changing the parameters of the reactor.
[0037] Further, the support rod is an electric push rod, the electric push rod is fixedly connected to the lower clamp plate, and the end of the push rod of the electric push rod is connected to the upper clamp plate.
[0038] Further, the support rod is an electric push rod, the electric push rod is fixedly connected to the lower clamp plate, and the end of the push rod of the electric push rod is connected to the upper clamp plate.
[0039] In the design, the support rod is an electric push rod, which has the beneficial effect of improving the efficiency of stepless adjustment and saving the labor intensity.
[0040] In the utility model, the rectangular core is split into an upper core and a lower core, the upper core and the lower core are clamped and arranged on the four support rods of the reactor air gap adjusting mechanism, the height of the upper core can be adjusted by the upper and lower nuts of the four support rods, and the air gap spacing of the rectangular core is changed, which has the beneficial effect that the air gap spacing is changed, the magnetic flux of the reactor is adjusted, the dynamic adjustment of the parameters of the reactor is realized, the time of shutdown due to adjustment of the parameters of the reactor is saved, the reactor does not need to be replaced due to adjustment of the parameters of the reactor, the production cost is saved, and economic benefits are generated. BRIEF DESCRIPTION OF DRAWINGS
[0041] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor intensity. Among them:
[0042] Figure 1 It is a schematic view of the utility model;
[0043] Figure 2 It is a front view of the utility model;
[0044] Figure 3 is the left view of the utility model.
[0045] Symbol explanation:
[0046] 1, upper core; 2, lower core; 3, coil; 4, upper clamping plate; 5, lower clamping plate; 6, support rod; 7, terminal. DETAILED DESCRIPTION
[0047] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, simple and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the accompanying drawings of the specification.
[0048] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.
[0049] Secondly, the utility model is described in detail in combination with the schematic diagram, in order to facilitate the description, the sectional view showing the structure of the device will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.
[0050] Thirdly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the utility model. "In one embodiment" appearing in different places in the specification does not refer to the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.
[0051] Referring to Figure 1 , Figure 2 , Figure 3 As shown in the figure, the adjustable reactor includes a rectangular core, the left side of the rectangular core is wound with a coil 3, the right side of the rectangular core is wound with another coil 3, the rectangular core includes an upper core 1 and a lower core 2, the upper core 1 and the lower core 2 are U-shaped silicon steel sheet laminated cores, and the bottom end of the U-shaped core is the bottom end of the upper core 1 and the lower core 2.
[0052] It also includes a reactor air gap adjusting mechanism for adjusting the air gap spacing of the upper core 1 and the lower core 2.
[0053] The reactor air gap adjusting mechanism includes two steel plates, referred to as upper clamping plates 4, the upper clamping plates 4 clamp the bottom end of the upper core 1 through locking bolts, and the opening of the upper core 1 faces downward.
[0054] The air gap adjusting mechanism of the reactor further comprises two steel plates, namely lower clamping plates 5, which clamp the bottom end of the lower core 2 through locking bolts, and the opening of the lower core 2 faces upward;
[0055] The two ends of the lower clamping plate 5 are respectively welded with two support rods 6, the upper end of the two support rods 6 is a threaded end with a thread, and the threaded end is provided with two nuts in upward and downward directions;
[0056] The two ends of the upper clamping plate 4 are respectively provided with through holes, and the two support rods 6 pass through the through holes to clamp the upper clamping plate 4 between the two nuts in upward and downward directions;
[0057] The upper core 1 and the lower core 2 form a relatively movable structure;
[0058] The left and right sides of the rectangular core are respectively covered with an insulation layer, and a coil 3 is wound on the insulation layer, the wire of the coil 3 is made of copper wire, and the copper wire is wrapped with an insulation material;
[0059] The upper core 1 and the lower core 2 are slidably sleeved in the insulation layer.
[0060] In the embodiment, the lower core 2 is clamped between the two lower clamping plates 5, the two ends of the two lower clamping plates 5 are respectively welded with two support rods 6 to form four support rods 6 which are fixedly arranged upward, the upper core 1 is clamped between the two upper clamping plates 4, the two upper clamping plates 4 pass through the four support rods 6 and are clamped between the two nuts in upward and downward directions, and the upper core 1 and the lower core 2 form a relatively movable adjustable structure, which has the beneficial effect that the upper core 1 and the lower core 2 are relatively movable, and thus the air gap gap between the upper core 1 and the lower core 2 can be adjusted, so as to change the magnetic flux of the reactor and realize dynamic adjustment of the parameters of the reactor, thereby avoiding shutdown due to adjustment of the parameters of the reactor, and also avoiding replacement of the reactor due to adjustment of the parameters of the reactor, saving production cost and generating economic benefits.
[0061] Further, the insulation layer is a cylindrical insulation layer made of diphenyl ether.
[0062] In the embodiment, the diphenyl ether as the insulation layer also has the beneficial effect of flame retardation, the diphenyl ether is wound into a cylindrical insulation layer, and the upper core 1 and the lower core 2 are slidably sleeved in the cylindrical insulation layer, which has the beneficial effect that the upper core 1 and the lower core 2 are convenient to change the air gap.
[0063] Further, the side of the two upper clamping plates 4 facing the upper core 1 is provided with an epoxy plate as an insulation plate, and the side of the two lower clamping plates 5 facing the lower core 2 is provided with an epoxy plate as an insulation plate.
[0064] In the embodiment, the epoxy board is used as the insulating board, which has the advantages that the epoxy board has certain hardness and wear resistance, and can protect the iron core; and the epoxy board has heat resistance and chemical resistance, and has good insulation in the high-frequency magnetic field.
[0065] Further, the wire of the coil 3 is sprayed with insulating paint, and the mica tape is wound on the wire sprayed with the insulating paint.
[0066] In the embodiment, the wire of the coil 3 is sprayed with insulating paint, and the mica tape is wound on the wire sprayed with the insulating paint, which has the advantages that the insulation between the wires of the coil 3 is enhanced, and the partial discharge caused by the breakdown between the wires of the coil 3 is prevented, thereby improving the performance of the electric reactor.
[0067] Further, the upper clamping plates 4 are made of angle steels, the vertical edges of the two upper clamping plates 4 are locked to the upper iron core 1 by locking bolts, the horizontal edges of the two upper clamping plates 4 are upward, and the two upper clamping plates 4 are flush with the upper iron core 1 to form two upper end faces;
[0068] The lower clamping plates 5 are also made of angle steels, the vertical edges of the two lower clamping plates 5 are locked to the lower iron core 2 by locking bolts, the horizontal edges of the two lower clamping plates 5 are downward, and the two lower clamping plates 5 are flush with the lower iron core 2 to form two lower end faces;
[0069] The support rods 6 are welded to the back surfaces of the two ends of the two lower end faces;
[0070] The two ends of the two upper end faces are provided with through holes, the through holes pass through the support rods 6 and abut against the lower nuts, and the upper nuts lock the upper end faces on the support rods 6.
[0071] In the embodiment, the angle steel has two mutually perpendicular planes, one plane is used for clamping the iron core, and the other plane is locked by the support rods 6, and the angle steel is used as the upper and lower clamping plates 5, which has the advantages that the angle steel can be used for clamping the upper and lower iron cores 2 after simple drilling processing, and the air gap of the upper and lower iron cores 2 can be adjusted by the height adjustment of the upper and lower nuts on the support rods 6, which can shorten the processing period and save the manufacturing cost.
[0072] Further, one of the two upper end faces is provided with the terminal 7, and a connecting block made of phenolic resin material is installed between the terminal 7 and the upper end face.
[0073] In the embodiment, the connecting block made of phenolic resin material is installed between the terminal 7 and the upper end face, which has the advantages that the partial discharge or leakage caused by the breakdown of the high-voltage circuit between the terminal 7 and the iron core is avoided, and the stability of the electric reactor is improved.
[0074] Further, the terminal 7 is provided with a cover covering the terminal 7.
[0075] In the embodiment, the cover covering the terminal 7 is arranged to prevent the terminal 7 from being corroded and disconnected due to liquid dripping, so that the reactor loses the function.
[0076] Further, the upper ends of the coils 3 wound on the left and right sides of the rectangular core are connected to the upper clamping plate 4, and the lower ends are connected to the lower clamping plate 5.
[0077] The upper clamping plate 4 and the lower clamping plate 5 form a structure for stretching the spacing between the wires of the coil 3.
[0078] In the embodiment, the two ends of the coils 3 wound on the left and right sides of the rectangular core are connected to the upper clamping plate 4 and the lower clamping plate 5, respectively, and the structure for stretching the coil 3 is realized when the height of the upper clamping plate 4 is adjusted. The beneficial effect is that the spacing between the wires of the coil 3 is changed by stretching the wires of the coil 3, so that the magnetic flux of the reactor is changed, the dynamic adjustment of the filtering performance of the reactor is realized, the shutdown for adjusting the parameters of the reactor is avoided, the reactor does not need to be replaced, the use cost is saved, and the economic benefit is improved.
[0079] Further, the support rod 6 is an electric push rod, the electric push rod is fixedly connected to the lower clamping plate 5, and the end of the push rod of the electric push rod is connected to the upper clamping plate 4.
[0080] Further, the control system for controlling the synchronous extension and contraction of the electric push rod is further provided, and the control system controls the power device of the electric push rod.
[0081] In the embodiment, the support rod 6 is an electric push rod, and the beneficial effect is that the efficiency of the stepless adjustment is improved, and the labor intensity is saved.
[0082] In addition, in order to provide a brief description of the exemplary embodiments, all the features of the actual embodiments can not be described, those features irrelevant to the currently considered best mode for carrying out the present application, or those features irrelevant to the implementation of the present application.
[0083] It should be understood that, in the development of any actual implementation, many implementation decisions can be made, such as in any engineering or design project. Such development efforts can be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development efforts will be a routine work of design, manufacture and production without excessive experiments.
[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A stepless adjustable reactor comprising a rectangular iron core, a coil wound on the left side of the rectangular iron core, and another coil wound on the right side of the rectangular iron core, characterized in that: The rectangular core includes an upper core and a lower core, and both the upper core and the lower core are made of U-shaped silicon steel sheets, with the bottom end of the U-shape being the bottom end of the upper core and the lower core; It also includes a reactor air gap adjustment mechanism for adjusting the air gap distance between the upper iron core and the lower iron core; The reactor air gap adjustment mechanism consists of two steel plates, called upper clamping plates, which clamp the bottom end of the upper iron core through locking bolts, with the opening of the upper iron core facing downward; The reactor air gap adjustment mechanism also includes two other steel plates, called lower clamping plates, which clamp the bottom end of the lower iron core through locking bolts, with the opening of the lower iron core facing upward; Two support rods are welded to both ends of the lower splint, and the upper ends of the two support rods are threaded ends with threads, and the threaded ends are provided with upper and lower nuts; Through holes are provided at both ends of the upper clamping plate, and two support rods pass through the through holes to clamp the upper clamping plate between the upper and lower nuts; The upper iron core and the lower iron core form a relatively movable structure; The left and right sides of the rectangular iron core are covered with an insulating layer, and a coil is wound on the insulating layer. The conductor of the coil is a copper wire, and the copper wire is wrapped with an insulating material. The upper iron core and the lower iron core are slidably sleeved in the insulating layer.
2. The stepless adjustable reactor according to claim 1, characterized in that: The insulating layer is made of diphenyl ether rolled into a tube.
3. The stepless adjustable reactor according to claim 1, characterized in that: An epoxy board is provided on one side of the two upper clamping plates facing the upper iron core as an insulating board; An epoxy board is provided on one side of the two lower clamping plates facing the lower iron core as an insulating board.
4. The stepless adjustable reactor according to claim 1, characterized in that: The surface of the conductor of the coil is sprayed with insulating paint, and the conductor sprayed with insulating paint is wrapped with mica tape.
5. The stepless adjustable reactor according to claim 1, characterized in that: The upper splint is made of angle steel. The vertical edges of the two upper splints are attached to the upper iron core and locked by locking bolts. The horizontal edges of the two upper splints face upwards and are flush with the upper iron core to form two upper end surfaces. The lower clamping plates are also made of angle steel. The vertical edges of the two lower clamping plates are attached to the lower iron core and locked by locking bolts. The horizontal edges of the two lower clamping plates face downwards and are flush with the lower iron core to form two lower end surfaces. The support rods are welded to the back sides of both ends of the two lower end surfaces; Through holes are provided at both ends of the two upper end surfaces. The through holes pass through the support rod and abut against the lower nut. The upper nut locks the upper end surface on the support rod.
6. The stepless adjustable reactor according to claim 5, characterized in that: One of the two upper end surfaces is provided with a connection terminal; A connection block is also installed between the wiring terminal and the upper end surface, and the connection block is a block made of phenolic resin material.
7. The stepless adjustable reactor according to claim 6, characterized in that: The wiring terminal is provided with a cover for covering the wiring terminal.
8. The stepless adjustable reactor according to claim 1, characterized in that: The upper ends of the coils wound on the left and right sides of the rectangular iron core are connected to the upper clamping plate, and the lower ends are connected to the lower clamping plate; The upper and lower clamping plates form a structure that stretches the spacing between the coil wires.
9. The stepless adjustable reactor according to claim 1, characterized in that: The upper clamping plate is moved up and down by two sets of locking bolts on the support rod to adjust the air gap and change the parameters of the reactor.
10. The stepless adjustable reactor according to claim 1, characterized in that: The support rod adopts an electric push rod, which is fixedly connected to the lower clamping plate, and the end of the push rod of the electric push rod is connected to the upper clamping plate; The utility model also comprises a control system for controlling the synchronous extension and retraction of the electric push rod, and a power device for controlling the electric push rod through a signal of the control system.