A fast heat dissipation coil

Abstract

The present invention relates to a fast-heat-dissipating coil, comprising: a frame for winding a conductor; a flange plate fixed to the outside of the frame, the flange plate being provided with a cooling groove; and a lead-out connector mounted on the flange plate, the lead-out connector being used to connect to the end of the conductor, the lead-out connector being provided with a cooling interface. The two ends of the conductor are connected to the lead-out connector, which has a cooling interface forming an external cooling channel for the coil. Simultaneously, the cooling groove on the flange plate forms an internal cooling channel for the coil. Rapid heat dissipation from the coil is achieved through water cooling, resolving the conflict between structural strength, resistance limitations, and heat dissipation requirements, thereby achieving a high-strength structure and fast heat dissipation design for a high-power coil.

Description

Technical Field

[0001] The present invention relates to the field of pulse power coils, in particular to a rapid heat dissipation coil. Background Art

[0002] Pulsed power coils currently play an indispensable role in contemporary military, scientific research, and industrial applications. Their performance is directly related to the efficiency of the equipment. For example, coils used in pulsed high-intensity magnetic fields must meet the requirements of high strength, high temperature resistance, and strong magnetic fields. The coils in coil transmitters must first meet the requirements of high strength, low temperature rise, and strong magnetic fields. While selecting high-quality materials and optimizing coil design can also improve coil performance, improvements in coil manufacturing process and structure play a greater role and should be considered first.

[0003] The coil winding method is very simple, that is, start from one end of the fixed device and tightly wind it, change direction after winding one layer, and then wind it back, and so on until it is completed. However, this structure brings many problems: because the coil is wound with a single wire, the current distribution throughout the coil is basically uniform, but the more layers of coil are wound, the more difficult it is to dissipate heat from the inner coil, resulting in excessive temperature rise inside the coil. Under continuous pulse discharge operation, the internal temperature of the coil drops slowly, which can easily lead to coil insulation failure and damage. Pulse power coils usually pass high currents, causing them to generate strong magnetic fields, but at the same time, the electromagnetic force of the coil will also increase, which can cause damage to the coil terminals and insulation packaging.

[0004] The primary method for rapidly dissipating heat from coils is to wind the coils with hollow conductors and pass coolant through them for rapid cooling. However, the enormous electromagnetic force can cause the conductors to deform, blocking the cooling channels and damaging the coil structure. Furthermore, the hollow conductors increase coil resistance, reducing system efficiency. A key challenge in high-power electromagnetic coil research is how to balance high current, high strength, low temperature rise, and low resistance. Summary of the Invention

[0005] The embodiment of the present invention provides a fast heat dissipation coil, which quickly dissipates heat through a flange plate and a lead-out head with minimal changes to the original coil structure design, thereby resolving the contradiction between the coil's structural strength, resistance limitation, and heat dissipation requirements.

[0006] In a first aspect, a rapid heat dissipation coil is provided, which includes: a frame for winding a wire; a flange plate fixed to the outside of the frame, and a cooling groove is provided on the flange plate; a lead-out head installed on the flange plate, and the lead-out head is used to connect to the end of the wire, and a cooling interface is provided on the lead-out head.

[0007] In some embodiments, a wire guide groove is provided on the flange plate, and the wire is led out through the wire guide groove.

[0008] In some embodiments, two ends of the wire are respectively connected to the two lead-out terminals, and the two lead-out terminals are respectively fixed on the package.

[0009] In some embodiments, all parts of the wire and the lower half of the lead-out connector are fixed by encapsulation, and the upper half of the lead-out connector is used for electrical connection and water-cooling connection.

[0010] In some embodiments, the lead-out connector is provided with an electrical connection hole, and the electrical connection hole is used to connect to a power source.

[0011] In some embodiments, a metal tube is provided in the cooling tank, and a coolant can flow through the metal tube.

[0012] In some embodiments, the metal tube is connected to a first insulating tube, and a coolant can flow through the first insulating tube.

[0013] In some embodiments, the cooling groove is provided inside the flange plate, and both ends of the metal tube pass through the flange plate and extend to the outside of the flange plate.

[0014] In some embodiments, the cooling interface is connected to a second insulating tube, and a coolant can flow through the second insulating tube.

[0015] The beneficial effects brought about by the technical solution provided by the present invention include:

[0016] An embodiment of the present invention provides a fast heat dissipation coil. By connecting the two ends of a wire to a lead-out connector, the lead-out connector is provided with a cooling interface, which forms an external cooling channel for the coil. At the same time, the cooling groove on the flange plate forms an internal cooling channel for the coil. The coil is quickly cooled by water cooling, which solves the contradiction between structural strength, resistance limitation, and heat dissipation requirements, and realizes a high-strength structure and fast heat dissipation design for a high-power coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a portion of the structure of a rapid heat dissipation coil provided by an embodiment of the present invention;

[0019] Figure 2A schematic cross-sectional structure diagram of a flange plate of a rapid heat dissipation coil provided by an embodiment of the present invention;

[0020] Figure 3 A schematic top view of a rapid heat dissipation coil according to an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of a rapid heat dissipation coil provided by an embodiment of the present invention;

[0022] Figure 5 A schematic structural diagram of a lead slot for a rapid heat dissipation coil provided in an embodiment of the present invention.

[0023] Numbers in the figure:

[0024] 1. Frame; 2. Flange plate; 3. Wire; 4. Lead-out head; 5. Metal tube; 6. Cooling trough; 7. Electrical connection hole; 8. Cooling interface; 9. Package; 10. Lead trough. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] An embodiment of the present invention provides a fast heat dissipation coil, which can resolve the contradictions among structural strength, resistance limitation, and heat dissipation requirements in related technologies, give full play to the structural characteristics of the package, the low resistance of the physical wire, and the first-level side flange and lead head cooling, thereby achieving a high-strength structure and fast heat dissipation design for the high-power coil.

[0027] See also Figure 1 and Figure 2 As shown, a rapid heat dissipation coil provided by an embodiment of the present invention may include a frame 1, a flange plate 2 and a lead-out connector 4;

[0028] The skeleton 1 is used to wind the conductor 3 and is cylindrical. It is made of a high-strength insulating material such as epoxy resin. It is required to have a certain thickness and sufficient strength to support the winding of the conductor. The number of layers, number of turns and winding direction of the conductor 3 can be flexibly set according to actual needs.

[0029] The flange plate 2 is fixed to the outside of the frame 1. It is made of a high-strength insulating material, such as epoxy resin. It requires high strength and a certain thickness. The high strength is to withstand the huge axial electromagnetic force generated by the coil without deformation. The certain thickness is to open a lead groove on it to lead out the two ends of the wire and form a cooling channel. The flange plate 2 is provided with a cooling groove 6. A metal tube 5 is provided in the cooling groove 6. A coolant can flow through the metal tube 5 to dissipate heat for the wire 3. The cooling groove 6 can be circular, square or other shapes.

[0030] A lead-out connector 4 is mounted on the flange plate 2 and is used to connect to the end of the wire 3. A cooling port 8 is provided on the lead-out connector 4, which connects the end of the wire 3 to the lead-out connector 4. Coolant flows through the cooling port 8, rapidly dissipating heat from the coil through heat conduction. The lead-out connector 4 can be positioned directly against the flange plate 2 or spaced a certain distance apart. The lead-out connector 4 is a rectangular parallelepiped with a length, width, and height of 4 cm, 3 cm, and 0.8 cm, respectively. In other embodiments, the lead-out connector 4 can have other shapes and sizes.

[0031] See also Figure 2 As shown, in some embodiments, a metal tube 5 can be provided in the cooling groove 6, and a coolant can flow in the metal tube 5. In this embodiment, the cooling groove 6 is recessed downward, and the depth of the cooling groove 6 is greater than the diameter of the metal tube 5, so as to completely place the metal tube 5. The metal tube 5 can enhance the heat transfer efficiency and structural strength. After the metal tube 5 is placed in, an insulating material is filled to ensure insulation between the cooling channel and the wire.

[0032] See also Figure 2 As shown, in some embodiments, the metal tube 5 can be connected to the first insulating tube, and the coolant flows through the first insulating tube. In this embodiment, the two ends of the metal tube 5 are connected to the external first insulating tube, and the metal tube 5 and the first insulating tube can form an internal cooling channel. The metal tube 5 is made of high-strength metal material, which can enhance the heat transfer efficiency and structural strength. The first insulating tube is a hollow tube made of insulating material to prevent the metal tube 5 from forming an induced current loop. Among them, the insulating tube is cylindrical with an outer diameter of 0.8 cm and an inner diameter of 0.6 cm. The metal tube 5 is U-shaped with an outer diameter of 0.6 cm and an inner diameter of 0.5 cm. In other embodiments, the lead-out head 4, the metal tube 5, and the insulating tube can also be of other shapes and sizes. Their sizes and shapes can be flexibly selected according to actual needs.

[0033] See also Figure 2As shown, preferably, the metal tube 5 can be arranged inside the flange plate 2, and both ends of the metal tube 5 pass through the flange plate 2 and extend to the outside of the flange plate 2. In this embodiment, the metal tube 5 is arranged inside the flange plate 2 and is isolated from the wire 3 by an insulating material, thereby avoiding a short circuit between the metal tube 5 and the wire 3.

[0034] See also Figure 1 and Figure 4 As shown, further, the cooling interface 8 can be connected to the second insulating tube, and coolant can flow through the second insulating tube. In this embodiment, the cooling interface 8 is hollow and connected to the second insulating tube to form an external cooling channel. A non-conductive liquid such as deionized water or anhydrous ethanol is injected into the external cooling channel to cool the coil. The cooling interface 8 can be circular or have other shapes. The cooling interface 8 can be connected to the metal tube 5 through the second insulating tube or not. For a multi-stage coil structure, the cooling interface 8 and the metal tube 5 of each coil can be connected through the first and second insulating tubes, and the coolant can dissipate heat from the conductors 3 of multiple coils simultaneously.

[0035] See also Figure 3 and Figure 4 As shown, in some embodiments, the two ends of the wire 3 are respectively connected to the two lead-out terminals 4, and the two lead-out terminals 4 are respectively fixed on the package 9. In this embodiment, the lead-out terminals 4 are rectangular and are located on the side of the flange plate 2. The two lead-out terminals 4 are respectively connected to the two ends of the wire, and the package 9 is used to fix the lead-out terminals 4. In other embodiments, the lead-out terminals 4 can also be installed in other positions.

[0036] See also Figure 4 As shown, in some embodiments, all parts of the wire 3 and the lower half of the lead-out connector 4 are wrapped and fixed by a package 9, and the upper part of the lead-out connector 4 extends out of the package 9 for electrical connection and water cooling connection. In this embodiment, the package 9 insulates and fixes the wire 3 and the lead-out connector 4, and the cooling interface 8 and the electrical connection hole 7 are both provided on the part of the lead-out connector 4 extending out of the package 9 to facilitate power connection and heat dissipation.

[0037] See also Figure 4 As shown, in some embodiments, the lead-out terminal 4 is provided with an electrical connection hole 7, and the electrical connection hole 7 is used to connect to a power source to feed power to the coil.

[0038] See also Figure 5As shown, in some embodiments, the flange plate 2 may be provided with a lead groove 10, and the wire 3 is led out through the lead groove 10. In this embodiment, the lead groove 10 may extend obliquely from the inner circle of the flange plate 2 to the outer circle, or may extend along other directions, wherein the depth of the lead groove 10 is greater than the diameter of the wire 3, and is used to completely place the coil lead wire. The coil lead wire and the adjacent coil winding wire are isolated by insulating material to avoid short circuit.

[0039] The principle of a rapid heat dissipation coil provided by an embodiment of the present invention is:

[0040] When power is applied to the coil, heat is generated. Coolant is then injected into the metal tubes 5 on the lead connector 4 and in the flange plate 2. The coolant flowing through the tubes 5 removes heat from the coil, cooling the flange plate 2 and, in turn, the coil. The coil's rapid heat dissipation can be further enhanced by providing multiple cooling ports 8 on the lead connector 4, forming multiple cooling channels in the flange plate 2, and increasing the coolant flow rate.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] It should be noted that, in the present invention, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0043] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A rapid heat dissipation coil, characterized in that: It includes: A frame (1) for winding a conductor (3); A flange plate (2) fixed to the outside of the frame (1), wherein the flange plate (2) is provided with a cooling groove (6); A lead-out connector (4) is mounted on the flange plate (2), the lead-out connector (4) is used to connect to the end of the wire (3), and a cooling interface (8) is provided on the lead-out connector (4); A metal tube (5) is provided in the cooling tank (6), and a cooling liquid can flow through the metal tube (5); The metal tube (5) is connected to a first insulating tube, a coolant can flow through the first insulating tube, and the first insulating tube is a hollow tube made of insulating material; The cooling groove (6) is arranged inside the flange plate (2), and both ends of the metal tube (5) pass through the flange plate (2), extend to the outside of the flange plate (2) and communicate with the cooling interface (8).

2. The rapid heat dissipation coil according to claim 1, characterized in that: The flange plate (2) is provided with a wire guide groove (10), and the wire (3) is led out through the wire guide groove (10).

3. The rapid heat dissipation coil according to claim 1, characterized in that: The two ends of the wire (3) are respectively connected to the two lead-out terminals (4), and the two lead-out terminals (4) are respectively fixed on the package (9).

4. The rapid heat dissipation coil according to claim 1, characterized in that: All parts of the wire (3) and the lower half of the lead-out head (4) are wrapped and fixed by the package (9), and the upper half of the lead-out head (4) is used for electrical connection and water cooling connection.

5. The rapid heat dissipation coil according to claim 1, characterized in that: The lead-out head (4) is provided with an electrical connection hole (7), and the electrical connection hole (7) is used for connection to a power source.

6. The rapid heat dissipation coil according to claim 1, characterized in that: The cooling interface (8) is connected to a second insulating tube, and a cooling liquid can flow through the second insulating tube.

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