CN-224217320-U - Immediately, wind self-cooled passive filter

Abstract

The utility model discloses a vertical-winding self-cooling passive filter which is characterized by comprising a shell, wherein the inner wall of the bottom of the shell is fixedly connected with a filtering structure and a capacitor, and the outer wall of the shell is fixedly connected with a contactor; the utility model relates to the technical field of passive filters, in the filtering structure, a vertical air duct is formed by adopting a vertical winding mode of an insulating wire, and the vertical air duct is matched with a radiating groove design, so that efficient heat dissipation is realized by utilizing natural convection of air, meanwhile, the good heat dissipation performance ensures that a reactor is always in a normal working temperature range, performance degradation or equipment damage caused by overheating is avoided, and the volume and the occupied area of the filter are greatly reduced on the premise of realizing the same filtering effect by adopting a vertical winding structure, so that the filter structure is more compact, equipment installation layout is facilitated, and the space utilization rate is improved.

Inventors

• WANG PEILAN
• LI LE

Assignees

• 上海鸿康电器有限公司

Dates

Publication Date

20260508

Application Date

20250603

Claims (5)

1. 1. The vertical winding self-cooling passive filter is characterized by comprising a shell (1), wherein a filtering structure (2) and a capacitor (5) are fixedly connected to the inner wall of the bottom of the shell (1), and a contactor (4) is fixedly connected to the outer wall of the shell (1); The filter structure (2) comprises a reactor (21), a heat dissipation groove (22) is formed in the outer wall of the reactor (21), an installation bottom plate (23) is fixedly connected to the outer wall of the bottom of the reactor (21) through bolts, a guard plate (24) is fixedly connected to the outer wall of the top of the reactor (21) through bolts, and an insulated wire (25) is fixedly connected to the outer wall of the reactor (21).
2. 2. A standing-wound self-cooled passive filter according to claim 1, wherein the insulated wire (25) is vertically wound and fixed outside the reactor (21).
3. 3. The immediately wound self-cooled passive filter of claim 1 wherein the outer wall of the mounting base plate (23) is fixedly connected to the inner wall of the bottom of the housing (1) by bolts.
4. 4. The immediately wound self-cooled passive filter of claim 1, wherein the inner wall of the contactor (4) is fixedly connected with a connection flat cable (41), a capacitor flat cable (42) and a shorting flat cable (43).
5. 5. The immediately wound self-cooled passive filter of claim 4, wherein the outer walls of the connection flat cable (41) and the shorting flat cable (43) on the side far away from the contactor (4) are fixedly connected with the outer walls of the insulated wires (25), and the outer walls of the capacitor flat cable (42) on the side far away from the contactor (4) are fixedly connected with the outer walls of the capacitors (5).

Description

Immediately, wind self-cooled passive filter Technical Field The utility model relates to the technical field of passive filters, in particular to a vertical-winding self-cooling passive filter. Background In modern power systems, passive filters are used as key equipment for improving the quality of electric energy, are widely applied to the fields of industry, commerce, civilian use and the like, and can effectively improve the stability and the electric energy use efficiency of the power systems and ensure the safe operation of electric equipment by inhibiting harmonic current and performing reactive compensation. However, the traditional passive filter has some defects, the heat dissipation mode of the reactor generally depends on additional heat dissipation equipment such as fans, the running cost and maintenance difficulty of the equipment are increased, and the traditional reactor winding adopts a horizontal winding mode, so that the structure leads to larger size and wide occupied area of the filter, and in an installation environment with limited space, the reasonable layout is difficult to carry out, the application scene of the filter is limited, and the space utilization rate is reduced. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a vertical winding self-cooling passive filter, which solves the problems that the traditional reactor winding adopts a horizontal winding mode, so that the filter has larger volume and wide occupied area, and is difficult to reasonably layout in a space-limited installation environment. (II) technical scheme In order to achieve the above purpose, the utility model is realized by the following technical scheme: A standing-winding self-cooling passive filter is characterized by comprising a shell, wherein a filtering structure and a capacitor are fixedly connected to the inner wall of the bottom of the shell, a contactor is fixedly connected to the outer wall of the shell, the filtering structure comprises a reactor, a radiating groove is formed in the outer wall of the reactor, an installation bottom plate is fixedly connected to the outer wall of the bottom of the reactor through a bolt, a guard plate is fixedly connected to the outer wall of the top of the reactor through a bolt, and an insulated wire is fixedly connected to the outer wall of the reactor. Preferably, the insulating wire is vertically wound and fixed outside the reactor, the winding of the reactor adopts a vertical winding mode, and the multi-layer insulating wires are vertically arranged, so that a vertical air channel is formed inside the reactor, when the reactor works to generate heat, surrounding air is heated and rises to form natural convection of air, and external cold air is continuously supplemented through the vertical air channel, so that heat generated by the reactor is taken away. Preferably, the outer wall of the mounting bottom plate is fixedly connected with the inner wall of the bottom of the shell through bolts, and the filtering structure is fixedly connected with the shell through the mounting bottom plate. Preferably, the inner wall of the contactor is fixedly connected with a connection flat cable, a capacitor flat cable and a short circuit flat cable. Preferably, the connecting flat cable and the shorting flat cable are fixedly connected with the outer wall of one side of the contactor and the outer wall of the insulating wire, the outer wall of one side of the capacitor flat cable is fixedly connected with the outer wall of the capacitor, current is transmitted to the insulating wire through the connecting flat cable of the contactor, the reactor has different impedance characteristics on currents with different frequencies, harmonic current with specific frequencies can be effectively restrained, current is subjected to filtering treatment, the current after being filtered by the reactor is transmitted to the capacitor through the capacitor flat cable, the capacitor further performs reactive compensation and filtering on the current, the quality of the current is improved, and then the current processed by the capacitor is output through the contactor, so that the current meeting the requirements is obtained, and the filtering function is realized. (III) beneficial effects The utility model provides a vertical-winding self-cooling passive filter. The beneficial effects are as follows: According to the reactor, the vertical winding mode of the insulated wire is adopted to form the vertical air channel, the design of the heat dissipation groove is matched, efficient heat dissipation is achieved by utilizing natural convection of air, extra heat dissipation equipment is not needed, the operation cost and the maintenance difficulty are reduced, meanwhile, the good heat dissipation performance ensures that the reactor is always in a normal working temperature range, performance degradation or e