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CN-224228899-U - Fan subassembly, steam condensing equipment and cooking equipment

CN224228899UCN 224228899 UCN224228899 UCN 224228899UCN-224228899-U

Abstract

The utility model belongs to the technical field of electric appliances, and discloses a fan assembly, a steam condensing device and cooking equipment. The fan assembly comprises a fan cover, a driving motor, a centrifugal impeller and an axial flow impeller, wherein the fan cover is provided with an air inlet, a heat dissipation air cavity and an air outlet which are communicated in sequence, the driving motor is arranged on the fan cover, the centrifugal impeller and the axial flow impeller are coaxial and are arranged on an output shaft of the driving motor at intervals, the centrifugal impeller is positioned in the heat dissipation air cavity, the air outlet is positioned at the radial side part of the centrifugal impeller, and the axial flow impeller is positioned outside one side, far away from the air inlet, of the fan cover. The steam condensing device comprises a fan assembly and a condensing assembly, the condensing assembly is arranged at the air outlet, and the centrifugal impeller guides external cooling to blow to the condensing assembly. The utility model can save the occupied space of the fan assembly, reduce the cost and is beneficial to realizing the compact structure and the miniaturized arrangement of the cooking equipment.

Inventors

  • ZHU GUOLONG
  • SUN YANKUI
  • PAN YANLI
  • REN FUJIA
  • RUAN HUAPING

Assignees

  • 杭州老板电器股份有限公司

Dates

Publication Date
20260512
Application Date
20250221

Claims (11)

  1. 1. The fan assembly is characterized by comprising a fan cover (14), a driving motor (11), a centrifugal impeller (12) and an axial flow impeller (13), wherein the fan cover (14) is provided with an air inlet (1411), a heat dissipation air cavity (22) and an air outlet which are communicated in sequence, and the driving motor (11) is arranged on the fan cover (14); the centrifugal impeller (12) and the axial flow impeller (13) are coaxially and alternately arranged on an output shaft (111) of the driving motor (11), the centrifugal impeller (12) is positioned in the radiating air cavity (22), the air outlet is positioned at the radial side part of the centrifugal impeller (12), and the axial flow impeller (13) is positioned outside one side of the fan cover (14) away from the air inlet (1411).
  2. 2. The fan assembly according to claim 1, wherein the cross section of the output shaft (111) is a non-circular cross section, the center of the centrifugal impeller (12) is provided with a first shaft hole (124), the center of the axial flow impeller (13) is provided with a second shaft hole, the shapes of the first shaft hole (124) and the second shaft hole are the same as the cross section of the output shaft (111), and the output shaft (111) sequentially passes through the first shaft hole (124) and the second shaft hole; And/or the output shaft (111) is sleeved with a shaft sleeve (15), and the shaft sleeve (15) is clamped between the centrifugal impeller (12) and the axial flow impeller (13).
  3. 3. Fan assembly according to claim 2, characterized in that the sleeve (15) is made of a heat insulating material; And/or one end of the output shaft (111) far away from the motor casing (112) is provided with a thread section, a lock nut (172) is screwed on the thread section, and the axial flow impeller (13) is axially limited between the shaft sleeve (15) and the lock nut (172).
  4. 4. A fan assembly according to any one of claims 1 to 3, wherein the centrifugal impeller (12) includes a mounting plate portion (121) and an impeller plate portion (122) coaxially connected to an outer peripheral edge of the mounting plate portion (121), the impeller plate portion (122) having a plurality of blades sequentially arranged in a circumferential direction of the mounting plate portion (121), a first shaft hole (124) is provided in a center of the mounting plate portion (121), and the output shaft (111) passes through the first shaft hole (124); The mounting disc part (121) is provided with a lightening hole (1212), and/or at least one side of the mounting disc part (121) is provided with a boss part (123) in a protruding manner along the axial direction of the output shaft (111), and the first shaft hole (124) penetrates through the boss part (123).
  5. 5. The fan assembly according to claim 4, wherein a center of the mounting plate portion (121) is concavely formed with a center recess (1211) in a direction toward the air intake (1411), opposite sides of the center recess (1211) being convexly provided with the boss portions (123); And/or, a center concave portion (1211) is formed in the center of the mounting disc portion (121) in a concave manner along the direction towards the air inlet (1411), the first shaft hole (124) is formed in the center of the center concave portion (1211), the weight-reducing holes (1212) are located between the center concave portion (1211) and the impeller disc portion (122), and a plurality of weight-reducing holes (1212) are arranged at intervals along the circumferential direction of the center concave portion (1211).
  6. 6. A fan assembly according to any one of claims 1-3, wherein a motor casing (112) of the drive motor (11) extends radially outwardly from an end of the axial flow impeller (13) with mounting lugs (113), the mounting lugs (113) being provided in plurality at intervals along a circumferential direction of the motor casing (112) and being detachably connected to the fan housing (14); And/or, the motor casing (112) is arranged in the air inlet (1411) in a penetrating way, and one end, far away from the output shaft (111), of the motor casing is positioned outside the fan cover (14).
  7. 7. The fan assembly according to claim 6, wherein the mounting ear (113) includes an adapter portion (1132) and an ear plate portion (1131) connected at an included angle, a first end of the adapter portion (1132) is connected to the motor casing (112), a second end of the adapter portion (1132) extends in a direction toward the centrifugal impeller (12) and is connected to the ear plate portion (1131), and the ear plate portion (1131) extends radially outwardly of the motor casing (112); and/or, fan housing (14) have with collar portion (41) of air intake (1411) coaxial setting and connect in collar portion (41) with connect arm (1432) between air intake (1411) edge in the axial of output shaft (111), collar portion (41) interval set up in air intake (1411) keep away from one side of centrifugal impeller (12), connect arm (1432) along the circumference interval of collar portion (41) is provided with a plurality ofly, motor casing (112) wear to locate collar portion (41), install ear (113) with collar portion (41) are connected.
  8. 8. A vapor condensing device, comprising: the fan assembly of any of claims 1-7; The condensing assembly (3) is arranged at the air outlet, the condensing assembly (3) is provided with a condensing channel for introducing steam, and the centrifugal impeller (12) guides external cooling air flow to the condensing assembly (3) through the air inlet (1411), the heat dissipation air cavity (22) and the air outlet in sequence.
  9. 9. The steam condensing device according to claim 8, further comprising an air duct assembly (2), wherein the air duct assembly (2) is configured to form a hot air cavity around the inner container (200), the fan cover (14) is mounted on one side of the air duct assembly (2), the output shaft (111) passes through the air duct assembly (2), and the axial flow impeller (13) is located on the other opposite side of the air duct assembly (2) to be located in the hot air cavity.
  10. 10. The steam condensing device according to claim 9, characterized in that the air duct assembly (2) has a partition chamber (23), and in the axial direction of the output shaft (111), the heat dissipation air chamber (22), the partition chamber (23) and the hot air chamber are sequentially partitioned.
  11. 11. Cooking equipment, including electric heating element (500) and have inner bag (200) of cooking cavity, characterized in that still includes the steam condensing equipment of any one of claims 8-10, steam condensing equipment install in the outside of inner bag (200) and with inner bag (200) surround and be formed with hot-blast chamber, fan housing (14) are located hot-blast chamber is kept away from one side of inner bag (200), the cooking cavity has seted up a plurality of air flow holes with hot-blast chamber intercommunication, axial compressor impeller (13) install in hot-blast chamber.

Description

Fan subassembly, steam condensing equipment and cooking equipment Technical Field The utility model relates to the technical field of electric appliances, in particular to a fan assembly, a steam condensing device and cooking equipment. Background With the development of technology and the improvement of living standard of people, cooking equipment such as an electric steam box, a steam oven, an oven and the like is increasingly applied to home life, so that the selection of a user on a cooking mode is enriched, and the cooking experience of the user is improved. In the cooking equipment with the steaming and baking function, an electric heating tube and a turbulent fan are usually arranged at the back of a cooking cavity, the electric heating tube is used for heating air in the cooking cavity, the turbulent fan is used for promoting airflow in the cooking cavity to flow, so that temperature uniformity in the cooking cavity is improved, a cooking effect is better ensured, a condensing tube and a heat dissipation fan are arranged outside the cooking cavity, one end of the condensing tube is communicated with the cooking cavity, so that steam exhausted from the cooking cavity can enter the condensing tube for cooling and condensing during steam cooking, and the heat dissipation fan guides external airflow to flow to the condensing tube for dissipating heat to improve the condensing effect of the condensing tube. The cooking equipment that prior art provided, because need realize steaming function and roast function, need install vortex fan and radiator fan respectively, lead to cooking equipment's overall structure complexity higher, occupation of land volume is bigger, is unfavorable for realizing cooking equipment's cost reduction and miniaturized design. Disclosure of utility model The utility model aims to provide a fan assembly, a steam condensing device and cooking equipment, which can reduce the structural complexity of the cooking equipment, improve the structural compactness and facilitate the realization of the cost reduction and the miniaturization arrangement of the cooking equipment. To achieve the purpose, the utility model adopts the following technical scheme: the fan assembly comprises a fan cover, a driving motor, a centrifugal impeller and an axial flow impeller, wherein the fan cover is provided with an air inlet, a heat dissipation air cavity and an air outlet which are communicated in sequence, and the driving motor is arranged on the fan cover; The centrifugal impeller and the axial flow impeller are coaxial and are arranged on an output shaft of the driving motor at intervals, the centrifugal impeller is located in the heat dissipation air cavity, the air outlet is located at the radial side part of the centrifugal impeller, and the axial flow impeller is located outside one side of the fan cover away from the air inlet. As an alternative technical scheme of the fan assembly, the cross section of the output shaft is a non-circular cross section, the center of the centrifugal impeller is provided with a first shaft hole, the center of the axial flow impeller is provided with a second shaft hole, the shapes of the first shaft hole and the second shaft hole are the same as the cross section of the output shaft, and the output shaft sequentially passes through the first shaft hole and the second shaft hole; And/or the output shaft is sleeved with a shaft sleeve, and the shaft sleeve is clamped between the centrifugal impeller and the axial flow impeller. As an alternative technical scheme of the fan assembly, the shaft sleeve is made of heat insulation materials; And/or, one end of the output shaft far away from the motor casing is provided with a thread section, the thread section is screwed with a lock nut in a threaded manner, and the axial flow impeller is axially limited between the shaft sleeve and the lock nut. As an alternative technical scheme of the fan assembly, the centrifugal impeller comprises a mounting disc part and an impeller disc part coaxially connected to the outer periphery of the mounting disc part, the impeller disc part is provided with a plurality of blades which are sequentially arranged along the circumferential direction of the mounting disc part, a first shaft hole is formed in the center of the mounting disc part, and the output shaft penetrates through the first shaft hole; The mounting plate part is provided with a lightening hole, and/or at least one side of the mounting plate part is convexly provided with a boss part along the axial direction of the output shaft, and the first shaft hole penetrates through the boss part. As an alternative technical scheme of the fan assembly, a central concave part is formed in the center of the mounting disc part in a concave manner along the direction facing the air inlet, and the boss parts are arranged on two opposite sides of the central concave part in a convex manner; And/or the center of the mounting disc part is