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CN-114696497-B - Refrigerating system, motor thereof and glue filling method of motor

CN114696497BCN 114696497 BCN114696497 BCN 114696497BCN-114696497-B

Abstract

The invention discloses a refrigerating system, a motor and a glue pouring method of the motor, wherein the motor comprises a stator, a rotor, a rotating shaft and an integrally formed fan, a fan hub of the fan is provided with a first annular shell and a second annular shell surrounding the first annular shell, the upper end of the rotating shaft is embedded in the first annular shell and is integrally molded with the first annular shell, a magnetic yoke of the rotor is embedded in the second annular shell and is integrally molded with the second annular shell, and the motor is arranged in such a way that a rotating part of the motor has better consistency, parameters such as the end face jumping amount and unbalance amount of the rotating part are easier to control, and therefore, the motor runs stably and has low running noise. In addition, this motor still includes the PCB board of fixing at the stator lower extreme and sets up in the automatically controlled constitution of PCB board, and PCB board and automatically controlled constitution are all sealed by the casting glue, so set up, can prevent that PCB board and automatically controlled constitution from wetting the inefficacy, reduced the fault rate of PCB board and automatically controlled constitution.

Inventors

  • Request for anonymity

Assignees

  • 浙江三花智能控制股份有限公司

Dates

Publication Date
20260508
Application Date
20220418

Claims (8)

  1. 1. The motor of the refrigerating system is characterized by comprising a stator (5), a rotor (3), a rotating shaft (4) and an integrally formed fan (1), wherein a fan hub (11) of the fan (1) is provided with a first annular shell (111), a second annular shell (112) surrounding the first annular shell (111) and an upper end shell (113) arranged at the upper ends of the first annular shell (111) and the second annular shell (112), the upper end of the rotating shaft (4) is embedded in the first annular shell (111) and is integrally molded with the first annular shell (111), the upper end face of the rotating shaft (4) is in contact with the lower surface of the upper end shell (113), and a magnet yoke (31) of the rotor (3) is embedded in the second annular shell (112) and is integrally molded with the second annular shell (112); The motor further comprises a base (2), wherein the base (2) is provided with a third annular shell (21), a fourth annular shell (22) surrounding the third annular shell (21) and a lower end shell (23) sealing the bottom ends of the third annular shell (21) and the fourth annular shell (22), the third annular shell (21), the fourth annular shell (22) and the lower end shell (23) jointly enclose an annular groove (a), the motor comprises a PCB (6) fixed at the lower end of the stator (5) and an electric control component (7) fixed on the PCB (6), the stator (5) is fixedly sleeved on the periphery of the third annular shell (21), the PCB (6) and the electric control component (7) are both positioned in the annular groove (a), and pouring sealant (a 1) is poured into the annular groove (a) so as to seal the PCB (6) and the electric control component (7); The motor further comprises a wire (8), the fourth annular shell (22) is provided with an outlet (221), one end of the wire (8) is electrically connected with the electric control component (7), and the other end of the wire extends out of the outlet (221).
  2. 2. The motor according to claim 1, wherein the third annular shell (21) surrounds a shaft hole (b), the lower end of the rotating shaft (4) stretches into the shaft hole (b), the lower end of the rotating shaft (4) is provided with magnetism, a magnetic sheet (b 2) is installed in the shaft hole (b), and the magnetic sheet (b 2) is located right below the rotating shaft (4) to attract the rotating shaft (4) along the axial direction.
  3. 3. The motor according to claim 2, wherein a limit groove (41) is formed in the periphery of the rotating shaft (4), an elastic limit piece (b 4) is installed in the shaft hole (b), the elastic limit piece (b 4) is provided with a through hole (b 41), the rotating shaft (4) penetrates through the through hole (b 41), and the inner edge of the elastic limit piece (b 4) stretches into the limit groove (41).
  4. 4. The electric machine according to claim 1, characterized in that the electric control unit (7) comprises a chip (71), the chip (71) being integrated with a hall position sensor function, a PWM speed regulation function and an active soft switching function.
  5. 5. The electric machine according to claim 4, characterized in that said electronic control unit (7) further comprises peripheral functional circuits (72) implementing the functions of said chip (71).
  6. 6. The electric machine according to claim 1, characterized in that the pouring sealant (a 1) is a two-component electronic heat-dissipating silica gel.
  7. 7. The method for filling glue into a motor according to any one of claims 1 to 6, wherein the method for filling glue is as follows: firstly, configuring a wire protection sleeve with the shape matched with the wire outlet (221) and the hole shape matched with the wire (8), and sleeving the wire protection sleeve on the wire (8); then, the stator (5) is assembled in place, so that the PCB (6) and the electric control component (7) are both positioned in the annular groove (a); Then, the wire sheath is installed on the wire outlet (221); after that, the pouring sealant (a 1) is poured.
  8. 8. A refrigeration system comprising a motor, wherein the motor is the motor of any one of claims 1-6.

Description

Refrigerating system, motor thereof and glue filling method of motor Technical Field The invention relates to the technical field of motors, in particular to a motor of a refrigerating system and a glue filling method of the motor. Background In some refrigeration systems, such as air-cooled refrigerators, a motor configured with a fan is typically employed. Typically comprising rotor, shaft, yoke, fan, etc., and then the components are assembled together by press-fitting to form a structure. The unbalance of the motion and the vibration problem can be generated among the parts, and relatively loud noise can be generated. In view of this, developing a motor for a refrigeration system that operates more smoothly and with less noise is a technical problem that needs to be solved by those skilled in the art. Disclosure of Invention In order to solve the technical problems, the invention provides a motor of a refrigerating system, which comprises a stator, a rotor, a rotating shaft and an integrally formed fan, wherein a fan hub of the fan is provided with a first annular shell and a second annular shell surrounding the first annular shell, the upper end of the rotating shaft is embedded in the first annular shell and is integrally molded with the first annular shell, and a magnetic yoke of the rotor is embedded in the second annular shell and is integrally molded with the second annular shell. So set up, make the yoke and the fan of pivot, rotor form one and mould plastics wholly, compare each pressure equipment together or with each structure body that forms together through other connecting pieces connection, have better uniformity, parameters such as terminal surface runout volume, unbalance amount are easier to control to make the operation of fan more steady, the noise is littleer. In addition, the jump degree, concentricity and the like of the fan blade do not need to be repeatedly adjusted in the manufacturing process, the manufacturing process is simpler, and the manufacturing cost is lower. In addition, the invention also provides a refrigeration system, which comprises a motor, wherein the motor is any one of the motors. In addition, the invention also provides a glue filling method of the motor, which comprises the following steps: Firstly, configuring a wire protecting sleeve with the shape matched with the wire outlet and the hole shape matched with the wire, and sleeving the wire protecting sleeve on the wire; then, fixedly sleeving the stator on the periphery of the third annular shell, so that the PCB and the electric control component are positioned in the annular groove; Then, the wire protection sleeve is arranged on the wire outlet; And pouring the pouring sealant. Drawings Fig. 1 is a schematic diagram of the overall structure of a motor according to an embodiment of the present invention; FIG. 2 is an exploded view of an embodiment; FIG. 3 is a cross-sectional view of an embodiment; FIG. 4 is a schematic view of the structure of an injection molding monolith in an embodiment; FIG. 5 is a schematic illustration of components within a shaft hole in an embodiment; fig. 6 is a schematic structural view of an elastic limiting member in an embodiment. Wherein reference numerals in fig. 1 to 4 are explained as follows: A, injection molding the whole; 1 fan, 11 fan hubs, 111 first annular shell, 112 second annular shell, 113 upper end shell, 12 fan blades, 13 fan frames; 2 bases, 21 third annular shells, 22 fourth annular shells, 221 outlets, 23 lower end shells, 24 annular frames and 25 lugs; an annular groove a1 pouring sealant, a b shaft hole, a b1 magnetic box, a b2 magnetic sheet, a b3 graphite sheet, a b4 elastic limiting piece, a b41 through hole, a b42 long hole and a b5 bearing; 3 rotors, 31 magnetic yokes and 32 magnetic rings; 4, a rotating shaft and 41 limit grooves; the stator is 5, the iron core is 51, the framework is 52, and the winding is 53; 6 a PCB board; 7 electric control components, 71 chips and 72 peripheral functional circuits; 8 wires. Detailed Description In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description. Fig. 1 is a schematic overall structure of an embodiment of a motor provided by the invention, fig. 2 is an explosion schematic of an embodiment, fig. 3 is a cross-sectional view of an embodiment, fig. 4 is a schematic overall structure of an injection molding unit in an embodiment, fig. 5 is a schematic diagram of each component in a shaft hole in an embodiment, and fig. 6 is a schematic structural diagram of an elastic limiting member in an embodiment. It should be noted that, the above and below are described in the context of the view angles of fig. 1-3, so as to clearly illustrate the technical solution, and should not be construed as limiting the technical solution. As shown i