A heat dissipation type reactor
By using a hard conductive coil bent into a spiral shape and the core separation arrangement and insulation design in the reactor, combined with the fan blowing, the problems of heat dissipation and large eddy current loss of the core reactor are solved, and better Heat dissipation and waterproof performance.
Patent Information
- Application Number
- CN201811633791.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2038-12-29
AI Technical Summary
The existing iron core reactor has poor heat dissipation effect after power-on, heat accumulates in the iron core, and the eddy current loss caused by the magnetic field is relatively large.
Design a heat dissipation reactor, which uses a hard conductive ring to be bent into a spiral shape and is wound outside the iron core, and is arranged at intervals between the inner ring and the outer ring, and a heat dissipation gap is left between the outer ring and the wire core, and the conductive ring is wrapped in insulation. The film and the iron core surface are sprayed with insulating paint, combined with the fan to blow the air to form turbulent current to dissipate heat and reduce eddy current losses.
The heat dissipation performance of the reactor is improved, eddy current loss is reduced, and the waterproof performance of the equipment is enhanced through waterproof junction boxes and mounting plates.
Smart Images
Figure CN109616293B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of reactors, and in particular to a heat dissipation type reactor. Background Art
[0002] Reactors are also called inductors. When a conductor is energized, a magnetic field will be generated in a certain space it occupies. All current-carrying conductors have inductance in a general sense. However, when a long straight conductor is energized, the inductance is small and the magnetic field generated is not strong. Therefore, existing reactors are generally wound into a solenoid with a wire wrapped in an insulating blanket, which is called a hollow reactor. Later, in order to make the solenoid have a larger inductance, an iron core was inserted into the solenoid, which is called an iron core reactor. The solenoid of the existing iron core reactor has each coil attached to the spiral in turn, and the solenoid is attached to the outside of the iron core. Although the structure between the solenoid and the iron core is stable, most of the heat generated by the solenoid being energized will be transferred to the iron core. The heat accumulates in the iron core for a long time and cannot be dissipated, resulting in poor heat dissipation. Furthermore, the distance between two adjacent coils of the solenoid is too small. After the solenoid is energized, eddy current loss will be generated in the conductor solenoid due to the effect of the magnetic field. Summary of the invention
[0003] In view of the above technical problems in the prior art, the present invention provides a heat dissipation type reactor capable of improving heat dissipation performance.
[0004] To achieve the above object, the present invention provides the following technical solutions:
[0005] A heat dissipation type reactor is provided, comprising an iron core and a hard conductive ring, wherein the conductive ring is insulated from the iron core, bent into a spiral shape and wound around the iron core, the conductive ring comprising an inner ring inwardly attached to the iron core and an outer ring stretched outwardly, a heat dissipation gap is left between the outer ring and the core, and the inner ring and the outer ring are arranged in sequence.
[0006] The conductive ring is made of copper or aluminum.
[0007] The iron core is a cube, and the curved shape of the conductive ring matches the shape of the iron core.
[0008] This includes a fan for blowing air toward the conductive circle.
[0009] The longitudinal section of the conductive ring is wide and flat.
[0010] An insulating gap is left between the outer ring and the inner ring.
[0011] Wherein, the conductive ring is wrapped with an insulating film.
[0012] Among them, an insulating paint layer is sprayed on the surface of the iron core.
[0013] It includes a wiring terminal and a waterproof wiring box. One end of the wiring terminal is connected to a conductive ring, and the other end extends into the waterproof wiring box. The waterproof wiring box is located on the top of the iron core.
[0014] Among them, it includes two groups of mounting plates, which are respectively clamped on the two ends of the iron core. Each group of mounting plates includes a first clamping plate, a second clamping plate and a pull rod. The first clamping plate and the second clamping plate are respectively attached to the two opposite sides of the wire core. The two ends of the pull rod are respectively connected to the first clamping plate and the second clamping plate, so that the first clamping plate and the second clamping plate clamp the iron core together.
[0015] Beneficial effects of the present invention:
[0016] Compared with the prior art, the heat dissipation reactor of the present invention has a conductive ring including an inner ring that is attached to the iron core inwardly and an outer ring that is stretched outwardly. The inner ring and the outer ring are arranged in sequence along the longitudinal direction. When air is blown toward the conductive ring, turbulence can be formed between the outer ring and the inner ring, which can dissipate the heat generated by the conductive ring in time and improve the overall heat dissipation performance. In addition, compared with the technology of the traditional solenoid coils that are attached in sequence, the present invention has an insulating gap between the adjacent inner and outer rings, which reduces the eddy current loss in the conductive ring due to the effect of the magnetic field after the conductive ring is energized. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the structure of the heat dissipation reactor in the embodiment.
[0018] Figure 2 for Figure 1 Magnified view at A in the middle.
[0019] Reference numerals:
[0020] Core 1;
[0021] Conductive ring 2, outer ring 21, inner ring 22, heat dissipation gap 23;
[0022] Mounting plate 3, first clamping plate 31, second clamping plate 32, pull rod 33;
[0023] Waterproof junction box 4;
[0024] Terminal block 5. DETAILED DESCRIPTION
[0025] The present invention is described in detail below in conjunction with specific embodiments and drawings.
[0026] The heat dissipation reactor of this embodiment is as follows Figure 1 and Figure 2As shown, it includes a cubic iron core 1 and a hard, wide and flat conductive ring 2. The conductive ring 2 is made of copper or aluminum. The conductive ring 2 is wrapped with an insulating film. The surface of the iron core 1 is sprayed with an insulating paint layer, so that the conductive ring 2 and the iron core 1 are insulated. The conductive ring 2 is bent into a spiral shape and wound around the iron core 1. The conductive ring 2 includes an inner ring 22 that is attached to the iron core 1 inwardly and an outer ring 21 that is stretched outward. The inner ring 22 and the outer ring 21 are arranged in sequence along the longitudinal direction, that is, the bottom circle of the conductive ring 2 is the outer ring 21, the second to last circle is the inner ring 22, and the third to last circle is the outer ring 21, and they are staggered in this order. An insulating gap is left between the outer ring 21 and the inner ring 22 to ensure stable insulation performance. A heat dissipation gap 23 is left between the outer ring 21 and the core. In actual applications, a fan is used to blow air toward the conductive ring 2, or natural wind blows air toward the conductive ring 2, forming turbulence between the outer ring 21 and the inner ring 22, which can dissipate the heat generated by the conductive ring 2 in time and improve the overall heat dissipation performance. Compared with the technology of the traditional solenoid coils being attached in sequence, an insulating gap exists between the adjacent inner ring 22 and outer ring 21 in this embodiment, which reduces the eddy current loss in the conductive ring 2 due to the effect of the magnetic field after the conductive ring 2 is energized.
[0027] In this embodiment, a waterproof junction box 4 is provided on the top of the iron core 1, and a terminal 5 is fixed to the conductive ring 2. One end of the terminal 5 is connected to the conductive ring 2, and the other end extends into the waterproof junction box 4, which plays a good waterproof role. After the waterproof junction box 4 is added to the top of the reactor, the whole has waterproof performance and can be used in the rain. The conductive ring 2 is spirally wound as follows: a complete conductive ring 2 is first bent from top to bottom to form all the inner rings 22, and then bent from bottom to top to form all the outer rings 1, so that both ends of the conductive ring 2 are at the top, which is convenient for connection with the terminal. In practice, the conductive ring 2 can be wound in this way: a complete conductive ring 2 is first bent into an outer ring 21, then bent into an inner ring 22, and then bent into an outer ring 21, and the winding is completed in this way. In this way, the outer ring 21 in a suspended state generates inward pressure on the adjacent inner ring 22 below by its own weight, so that the inner ring 22 fits the iron core 1 more closely and will not be loose. Furthermore, the cross section of the outer ring 21 is larger than that of the inner ring 22, and the weight of the outer ring 21 is heavier than that of the inner ring 22, so that the inward pressure of the outer ring 21 on the inner ring 22 is greater. Even an additional counterweight block can be added to the outer ring 21 to increase the pressure on the inner ring 22.
[0028] In this embodiment, two groups of mounting plates 3 are included to facilitate the fixed installation of the entire reactor and peripheral equipment. The two groups of mounting plates 3 are clamped on the two ends of the iron core 1 respectively, and each group of mounting plates 3 includes a first clamping plate 31, a second clamping plate 32 and a pull rod 33. The first clamping plate 31 and the second clamping plate 32 are respectively attached to the two opposite sides of the wire core, and the two ends of the pull rod 33 are respectively connected to the first clamping plate 31 and the second clamping plate 32, so that the first clamping plate 31 and the second clamping plate 32 clamp the iron core 1 together.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.
Claims
1. A heat dissipation reactor, characterized by: The conductive ring is insulated from the core and bent into a spiral shape and wound around the core. The conductive ring includes an inner ring that faces inward and sticks to the core, and an outer ring that faces outward. A heat dissipation gap is left between the outer ring and the core. The inner and outer rings are spaced apart in the longitudinal direction. The outer ring has a larger cross-section than the inner ring, and the inner and outer rings do not overlap in the radial direction. Guide ring spiral winding: bend a complete guide ring from top to bottom to form the entire inner ring, and then bend it from bottom to top to form the entire outer ring; Alternatively, a complete conductive ring is first bent into an outer ring, then bent into an inner ring, and then bent into an outer ring, and so on to complete the winding.
2. A heat dissipation reactor according to claim 1, characterized in that: The conductive ring is made of copper or aluminum.
3. The heat dissipation reactor according to claim 1, characterized in that: The iron core is a cube, and the curved shape of the conductive ring matches the shape of the iron core.
4. The heat dissipation reactor according to claim 1, characterized in that: A blower is included for blowing air toward the conductive ring.
5. The heat dissipation reactor according to claim 1, characterized in that: The longitudinal section of the conductive ring is wide and flat.
6. The heat dissipation reactor according to claim 1, characterized in that: There is an insulating gap between the outer ring and the inner ring.
7. The heat dissipation reactor according to claim 1, characterized in that: The conductive ring is wrapped with an insulating film.
8. A heat dissipation reactor according to claim 1 or 7, characterized in that: The surface of the core is sprayed with an insulating paint layer.
9. The heat dissipation reactor according to claim 1, characterized in that: It includes a wiring terminal and a waterproof junction box. One end of the wiring terminal is connected to the conductive ring, and the other end extends into the waterproof junction box. The waterproof junction box is located on the top of the iron core.
10. The heat dissipation reactor according to claim 1, characterized in that: It includes two groups of mounting plates, which are respectively clamped on the two ends of the iron core. Each group of mounting plates includes a first clamping plate, a second clamping plate and a pull rod. The first clamping plate and the second clamping plate are respectively attached to the opposite sides of the wire core. The two ends of the pull rod are respectively connected to the first clamping plate and the second clamping plate, so that the first clamping plate and the second clamping plate clamp the iron core together.