Round high-voltage alternating-current inductor box

Abstract

The utility model discloses a round high-voltage alternating-current inductor box, belongs to the technical field of electrical accessories, and provides a round high-voltage alternating-current inductor box capable of improving heat dissipation efficiency. The round high-voltage alternating-current inductor box comprises a winding cover, the winding cover is provided with a supporting shell, one end of the supporting shell is provided with an upper sealing cover, the other end of the supporting shell is open, and the outer side of the supporting shell and the outer side of the upper sealing cover are sleeved with a heat dissipation cover; the heat dissipation cover and the winding cover are both made of materials with high thermal conductivity, a lead sleeve is further fixedly connected to the outer side of the supporting shell, and a wire bunching cavity is formed in the lead sleeve and penetrates through the lower surface of the lead sleeve. By arranging the winding cover structure with high heat conduction efficiency and sleeving the winding cover with the heat dissipation cover structure, the winding cover can quickly absorb heat generated when the alternating current inductor works and conduct the heat to the heat dissipation cover, and the heat dissipation cover can quickly release the heat by utilizing the larger outer surface area of the heat dissipation cover, so that the alternating current inductor has higher heat dissipation efficiency, and the service life of the alternating current inductor is prolonged. Therefore, the performance of the high-voltage alternating-current inductor is prevented from being influenced by over-high working temperature.

Description

Technical Field

[0001] The present application relates to the technical field of electrical accessories, and in particular to a circular high-voltage AC inductor box. Background Art

[0002] Inductors are one of the important components in circuit systems. They can improve the stability of circuit transmission. Therefore, high-voltage lines for power transmission also require the participation of inductors. Compared with low-voltage circuits, high-voltage currents generate more heat when passing through inductors. Therefore, inductors are required to have higher heat dissipation efficiency and high temperature resistance. However, the existing AC inductors have limited heat dissipation efficiency and it is difficult to meet the requirements of higher-voltage power transmission. When the temperature is too high, the performance of the inductor becomes unstable. Summary of the invention

[0003] The purpose of the present application is to provide a circular high-voltage AC inductor box that can improve heat dissipation efficiency.

[0004] To achieve the above purpose, the present application provides a circular high-voltage AC inductor box: including a winding cover, the winding cover has a supporting shell, one end of the supporting shell has an upper cover and the other end is open, the outer side of the supporting shell and the upper cover is provided with a heat dissipation cover, the heat dissipation cover and the winding cover are both made of a material with high thermal conductivity, the outer side of the supporting shell is also fixedly connected to a lead sleeve, the interior of the lead sleeve has a wire binding cavity, the wire binding cavity passes through the lower surface of the lead sleeve, is suitable for accommodating a conductive column connected to the inductor pin, and protects the raised conductive column on the circuit board and the extended pin wire.

[0005] Preferably, the open end of the support shell has a lower sealing ring, and the lead sleeve is fixedly connected to the outer side surface of the lower sealing ring and is made of the same material as the winding cover, forming an integrated structure.

[0006] As a preference, a wiring groove is provided on the bottom surface of the lower sealing ring, and the wiring groove is suitable for connecting the wiring cavity with the interior of the supporting shell to prevent the pin wires of the AC inductor from being flattened by the lower sealing ring.

[0007] As a preferred embodiment, a clearance groove is formed on the bottom surface of the lead sleeve, and the clearance groove surrounds the lower end of the wire bundle cavity and is used to fit with a protrusion on a circuit board on which the inductor is configured.

[0008] As a preference, a locking groove is further provided on the bottom surface of the lead sleeve, and the locking groove is close to the lower sealing ring to expand the diameter of the open end of the bottom of the support shell.

[0009] Preferably, a coaxial sealing groove is formed on the lower surface of the lower sealing ring, and a coaxial central column is formed on the inner top surface of the upper sealing cover, which can be inserted into the central hole of the AC inductor to suppress the shaking of the inductor in the inductor box.

[0010] Preferably, the heat dissipation cover comprises a connecting ring in close contact with the lower sealing ring, the upper end surface of the connecting ring has a plurality of rib plates, and convection grooves are formed between the rib plates to allow air to flow therethrough.

[0011] Preferably, the rib plate is in close contact with the outer surface of the supporting shell or the outer surface of the upper cover to ensure heat conduction efficiency.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) By providing a winding cover structure with high thermal conductivity and arranging a heat dissipation cover structure outside the winding cover, the winding cover can quickly absorb the heat generated by the AC inductor during operation and transfer it to the heat dissipation cover. The heat dissipation cover can quickly release the heat by using its larger surface area, so that the AC inductor has a higher heat dissipation efficiency, thereby preventing the high-voltage AC inductor from affecting its own performance due to excessive operating temperature;

[0014] (2) By providing a snap-fit ​​groove and a fitting groove structure at the bottom of the lead sleeve that is integrated with the winding cover, the inductor box can be stably connected to the circuit board on which the inductor is configured, and it is easier to disassemble and assemble than using a connector, which facilitates the inspection and replacement of the inductor at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a first schematic diagram of the three-dimensional structure of the circular high-voltage AC inductor box;

[0016] Figure 2 is a second schematic diagram of the three-dimensional structure of the circular high-voltage AC inductor box;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the winding cover of the circular high-voltage AC inductor box;

[0018] Figure 4 A three-dimensional structural cross-sectional view of a winding cover of the circular high-voltage AC inductor box;

[0019] Figure 5 It is a three-dimensional structural cross-sectional view of the heat dissipation cover of the circular high-voltage AC inductor box.

[0020] In the figure: 1. heat dissipation cover; 101. connecting ring; 102. rib plate; 103. convection groove; 2. winding cover; 201. center column; 202. upper sealing cover; 203. support shell; 204. lower sealing ring; 205. sealing groove; 206. wiring groove; 3. lead sleeve; 301. wire bundle cavity; 302. locking groove; 303. clearance groove. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0025] like Figure 1-5 The circular high-voltage AC inductor box shown includes a winding cover 2 made of a material with high thermal conductivity. The winding cover 2 can be made of a non-conductive ceramic material, such as alumina ceramic, which has good thermal conductivity and can withstand high temperatures. The specific structure of the winding cover 2 includes a cylindrical support shell 203, one end of the support shell 203 has an upper cover 202, the upper cover 202 completely closes the end of the support shell 203, and the other end of the support shell 203 is open, and the open end is used for placing or removing the main part of the AC inductor. The inner top surface of the upper cover 202 has a coaxial central column 201, which is used to be inserted into the central hole of the AC inductor, thereby reducing the shaking of the main part of the AC inductor in the support shell 203.

[0026] The outer sides of the support shell 203 and the upper cover 202 are provided with a heat dissipation cover 1 as an extended structure for improving the heat dissipation performance of the winding cover 2. The heat dissipation cover 1 is also made of a material with high thermal conductivity, usually copper alloy or aluminum alloy. The alloy material can also withstand higher temperatures. The open end of the support shell 203 has a lower sealing ring 204. The outer diameter of the lower sealing ring 204 is larger than the outer diameter of the support shell 203. The specific structure of the heat dissipation cover 1 includes a connecting ring 101 that is in close contact with the lower sealing ring 204. The upper end surface of the connecting ring 101 has a plurality of rib plates 102. The plurality of rib plates 102 are equidistantly arranged, so that convection grooves 103 are formed between the rib plates 102 to allow air to flow through, thereby accelerating the heat loss on the surface of the rib plates 102. The rib plates 102 are close to the outer surface of the support shell 203 or the outer surface of the upper cover 202 to ensure the heat conduction efficiency.

[0027] The outer side of the support shell 203 is also fixedly connected with a lead sleeve 3. In fact, the lead sleeve 3 is fixedly connected to the outer side of the lower sealing ring 204. The lead sleeve 3 is also made of a ceramic material with high thermal conductivity and is integrally formed with the winding cover 2. Two lead sleeves 3 are usually provided to accommodate two pins of the AC inductor respectively. The lead sleeve 3 has a wire beam cavity 301 inside. The wire beam cavity 301 passes through the lower surface of the lead sleeve 3 and is used to accommodate a conductive column connected to the inductor pin, thereby shielding and protecting the high rise The conductive column of the lower sealing ring 204 is provided with a wiring groove 206 on the bottom surface, and the wiring groove 206 connects the beam cavity 301 with the inside of the support shell 203, so as to facilitate the pin wire of the inductor to pass from the support shell 203 into the beam cavity 301. The lower surface of the lower sealing ring 204 is provided with a coaxial sealing groove 205, and after the wiring of the inductor pin wire is completed, a sealing ring can be embedded in the sealing groove 205, and the sealing ring is located below the inductor pin wire and also between the inductor and the circuit board on which the inductor is mounted.

[0028] The bottom surface of the lead sleeve 3 is provided with a clearance groove 303 for matching with the convex ring structure on the circuit board where the inductor is installed. The clearance groove 303 surrounds the lower end of the wire bundle cavity 301, and can effectively suppress the inductor box from moving on the circuit board after matching with the convex ring structure on the circuit board. The bottom surface of the lead sleeve 3 is also provided with a clamping groove 302, which is close to the lower sealing ring 204. The width of the clamping groove 302 is narrow, but the inner top surface is higher than the inner top surface of the clearance groove 303, and the inner wall of the clamping groove 302 matches with the outer side surface of the lower sealing ring 204, and is also used to match with the protruding block structure on the circuit board. This clamping is an interference fit, so after clamping, no additional connector is needed to maintain the installation stability of the entire inductor box on the circuit board.

[0029] Installation method: During installation, first electrically connect the two pins of the AC inductor to the conductive posts on the circuit board or circuit frame to be installed, and place a sealing ring under the inductor. The sealing ring fits into the preset groove on the circuit board. Then align the two lead sleeves 3 with the two conductive posts and insert them downward until the engaging groove 302 at the bottom of the lead sleeve 3 is completely engaged with the giving way groove 303. At this time, the sealing ring is embedded in the sealing groove 205 of the lower sealing ring 204. Finally, the independent heat dissipation cover 1 is put on the outside of the supporting shell 203 until the connecting ring 101 is in close contact with the lower sealing ring 204. When the internal AC inductor is working, the heat generated can be quickly conducted to the heat dissipation cover 1 through the winding cover 2. The heat dissipation cover 1 uses its larger heat dissipation area and air guide structure to release the heat, thereby avoiding overheating inside the inductor box.

[0030] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A circular high voltage AC inductor box, characterized in that: The invention comprises a winding cover (2), wherein the winding cover (2) has a supporting shell (203), one end of the supporting shell (203) has an upper cover (202) and the other end is open, a heat dissipation cover (1) is provided on the outer side of the supporting shell (203) and the upper cover (202), the heat dissipation cover (1) and the winding cover (2) are both made of a material with a high thermal conductivity, the outer side of the supporting shell (203) is also fixedly connected with a lead sleeve (3), the interior of the lead sleeve (3) has a wire beam cavity (301), the wire beam cavity (301) passes through the lower surface of the lead sleeve (3) and is suitable for accommodating a conductive column connected to an inductor pin.

2. The circular high voltage AC inductor box according to claim 1, characterized in that: The open end of the support shell (203) is provided with a lower sealing ring (204), and the lead sleeve (3) is fixedly connected to the outer side surface of the lower sealing ring (204).

3. The circular high voltage AC inductor box according to claim 2, characterized in that: A wiring groove (206) is provided on the bottom surface of the lower sealing ring (204), and the wiring groove (206) is suitable for connecting the wiring cavity (301) with the interior of the supporting shell (203).

4. The circular high voltage AC inductor box according to claim 3, characterized in that: The bottom surface of the lead sleeve (3) is provided with a clearance groove (303), and the clearance groove (303) surrounds the lower end of the wire bundle cavity (301).

5. The circular high voltage AC inductor box according to claim 4, characterized in that: The bottom surface of the lead sleeve (3) is also provided with a snap-fit ​​groove (302), and the snap-fit ​​groove (302) is close to the lower sealing ring (204).

6. The circular high voltage AC inductor box according to claim 5, characterized in that: The lower surface of the lower sealing ring (204) is provided with a coaxial sealing groove (205), and the inner top surface of the upper sealing cover (202) is provided with a coaxial central column (201).

7. The circular high voltage AC inductor box according to any one of claims 2 to 6, characterized in that: The heat dissipation cover (1) comprises a connecting ring (101) in close contact with the lower sealing ring (204); the upper end surface of the connecting ring (101) comprises a plurality of rib plates (102); and convection grooves (103) are formed between the rib plates (102).

8. The circular high voltage AC inductor box according to claim 7, characterized in that: The rib plate (102) is in close contact with the outer surface of the support shell (203) or the outer surface of the upper cover (202).

Images