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CN-122014651-A - High-temperature-resistant large ceiling fan

CN122014651ACN 122014651 ACN122014651 ACN 122014651ACN-122014651-A

Abstract

The invention belongs to the technical field of household ventilation appliances, and particularly relates to a high-temperature-resistant large ceiling fan which comprises a hoisting assembly and a control box for controlling starting, stopping and speed regulation of a motor, wherein the bottom of a vertical rod of the hoisting assembly is provided with the motor, a plurality of groups of fan blades are arranged on the motor, the motor comprises an upper end cover, a lower end cover, an outer rotor assembly and a shaft-bearing stator assembly, the plurality of groups of fan blades are arranged on the upper end cover, the vertical rod is connected with a rotor shaft of the shaft-bearing stator assembly, a protective cover is sleeved outside the outer rotor assembly and below the fan blades, an upper cover opening of the protective cover is connected with the upper end cover through a cushion block and a connecting piece, and a plurality of groups of heat dissipation holes are formed in the protective cover.

Inventors

  • LI YU
  • HUANG LUCAI
  • He Qianhuang

Assignees

  • 广东肇庆德通有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (8)

  1. 1. The high-temperature-resistant large ceiling fan comprises a hoisting assembly and a control box for controlling the start and stop of a motor and the speed regulation, and is characterized in that the bottom of a vertical rod of the hoisting assembly is provided with the motor, and a plurality of groups of fan blades are arranged on the motor; The motor comprises an upper end cover, a lower end cover, an outer rotor assembly and a shaft-bearing stator assembly, wherein a plurality of groups of fan blades are arranged on the upper end cover, and the vertical rod is connected with a rotor shaft of the shaft-bearing stator assembly; The outer rotor assembly is externally sleeved with a protective cover below the fan blades, an upper cover opening of the protective cover is connected with an upper end cover through a cushion block and a connecting piece, and a plurality of groups of heat dissipation holes are formed in the protective cover.
  2. 2. The high temperature resistant ceiling fan of claim 1 wherein said outer rotor assembly comprises a rotor housing, a magnet steel mount, a magnet steel body and a heat dissipating aluminum barrel assembled in sequence.
  3. 3. The high temperature resistant ceiling fan of claim 1 wherein said on-axis stator assembly comprises a wire insulator, slot paper, copper wire windings, rotor shaft, stator pieces and high temperature bearings assembled in sequence.
  4. 4. The high-temperature-resistant large ceiling fan according to claim 1, wherein the diameter of the upper cover opening of the protective cover is smaller than that of the bottom plugging end, a butt joint transmission assembly which is in butt joint with the rotor shaft is arranged at the bottom of the protective cover, a plurality of groups of heat dissipation holes are formed in the inclined outer ring surface of the protective cover, an extrusion opening and closing assembly for opening or closing the heat dissipation holes is arranged on the protective cover, a temperature sensor is arranged in the protective cover, and the extrusion opening and closing assembly is connected with the butt joint transmission assembly.
  5. 5. The high-temperature resistant large ceiling fan according to claim 4, wherein the butt-joint transmission assembly comprises a butt-joint shaft rotatably installed at the bottom of the protective cover through a bearing, a square hole formed in the butt-joint shaft, a square rod movably inserted in the square hole, a metal ring arranged at the top of the square rod in an insulating manner, an elastic piece connected between the metal ring and the square rod, and an electromagnetic suction block arranged at the bottom of the rotor shaft in an insulating manner, a plurality of L-shaped supporting rods are installed on the outer ring surface of the metal ring in an insulating manner, and vertical inserting rods of the L-shaped supporting rods are in insertion fit with inserting holes formed in the bottom of the protective cover.
  6. 6. The high temperature resistant ceiling fan as set forth in claim 5, wherein said pressing opening and closing assembly comprises a blocking column movably inserted in the heat radiation hole, a connecting strip connecting the plurality of blocking columns, guide columns fixed at both ends of the connecting strip, an elastic sheet mounted on the outer circumferential surface of the shield, and an L-shaped pressing rod connected with the butt joint shaft and extending to the outer circumferential surface of the shield; the outer end part of the guide post extends out of the heat dissipation hole to be connected with the elastic sheet, two end parts of the elastic sheet are in a flush state and are attached to the outer ring surface of the protective cover, and the vertical inclined rod of the L-shaped pressure rod is in contact with the elastic sheet.
  7. 7. The high temperature resistant ceiling fan of claim 6, wherein the extrusion opening and closing assembly further comprises a support ring arranged on the outer ring surface of the top of the protective cover, and a support clamping groove movably matched with the support ring is formed in the vertical diagonal rod of the L-shaped compression rod.
  8. 8. The high-temperature-resistant large ceiling fan according to claim 5, wherein a collecting bin is formed in the horizontal rod of the L-shaped pressing rod, a scraping blade is arranged on the bin wall of the collecting bin and is contacted with the bottom of the protective cover, a diversion chute which is used for communicating the collecting bin with the square hole is arranged on the butt joint shaft, a collecting box is arranged at the bottom of the butt joint shaft, and a drain valve is arranged at the bottom of the collecting box.

Description

High-temperature-resistant large ceiling fan Technical Field The invention belongs to the technical field of household ventilation appliances, and particularly relates to a high-temperature-resistant large ceiling fan. Background Along with the development of baking industry, more and more domestic kitchens can be modified to form a baking room with a baking function, and as the baking room needs a high-temperature-resistant ventilation device, heat can be uniformly and softly conveyed to all parts of the whole baking room, and the quality consistency of baked goods is ensured. The domestic big ceiling fan in the market relies on long and wide fan blades and rotates at a low speed, and even soft air supply can be provided, but the motor is generally designed to be used in a low-temperature environment, for example, in a 35-45 ℃ environment, the motor cannot be used in a high-temperature environment, and the machine body of the motor is exposed outside, so that the use of a baking room can also enable hot air flow to bake the machine body of the motor, and further the normal use of the motor in the high-temperature environment can be influenced again. Accordingly, in response to the deficiencies of the prior art, it is desirable to provide a large ceiling fan that is installed for use in a high temperature environment. Disclosure of Invention In order to solve the technical problems, the invention is realized by the following technical scheme: the invention discloses a high-temperature-resistant large ceiling fan which comprises a hoisting assembly and a control box for controlling starting, stopping and speed regulation of a motor, wherein the bottom of a vertical rod of the hoisting assembly is provided with the motor, a plurality of groups of fan blades are arranged on the motor, the motor comprises an upper end cover, a lower end cover, an outer rotor assembly and a shaft-bearing stator assembly, the plurality of groups of fan blades are arranged on the upper end cover, the vertical rod is connected with a rotor shaft of the shaft-bearing stator assembly, a protective cover is sleeved outside the outer rotor assembly and below the fan blades, an upper cover opening of the protective cover is connected with the upper end cover through a cushion block and a connecting piece, and a plurality of groups of heat dissipation holes are formed in the protective cover. The preferable scheme is that the outer rotor component comprises a rotor shell, a magnetic steel fixing frame, a magnetic steel body and a heat dissipation aluminum cylinder which are assembled in sequence. In a preferred scheme, the stator assembly with the shaft comprises a winding insulating frame, slot paper, copper wire windings, a rotor shaft, a stator piece and a high-temperature bearing which are assembled in sequence. The preferred scheme, the last cover mouth diameter size of protection casing is less than the diameter size of bottom shutoff end, the butt joint drive assembly who docks with the rotor shaft has been installed to the bottom of protection casing, multiunit the louvre is seted up on the outer lane face of protection casing slope, install on the protection casing and be used for opening or closed extrusion switching subassembly with the louvre, and install temperature sensor in the protection casing, and extrusion switching subassembly is connected with butt joint drive assembly. The preferable scheme, butt joint drive assembly includes the butt joint axle of installing in the protection casing bottom through the bearing rotation, sets up square hole in the butt joint axle, the square pole of activity grafting in the square hole, insulating metal ring of installing at square pole top, connect elastic component and the insulating electromagnetism piece of installing in rotor shaft bottom between metal ring and square pole, and the outer lane face insulation of metal ring installs a plurality of L type branches, and the vertical inserted bar of L type branch is pegged graft the cooperation with the jack of seting up in the protection casing bottom. The extrusion opening and closing assembly comprises a plugging column movably inserted in the heat dissipation hole, a connecting strip for connecting the plugging columns, guide columns fixed at two ends of the connecting strip, an elastic sheet arranged on the outer ring surface of the protective cover, and an L-shaped compression bar connected with the butt joint shaft and extending to the outer ring surface of the protective cover; the outer end part of the guide post extends out of the heat dissipation hole to be connected with the elastic sheet, two end parts of the elastic sheet are in a flush state and are attached to the outer ring surface of the protective cover, and the vertical inclined rod of the L-shaped pressure rod is in contact with the elastic sheet. The preferable scheme, the extrusion switching subassembly is still including installing the supporting ring that is