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CN-224228897-U - Modular split axial flow fan

CN224228897UCN 224228897 UCN224228897 UCN 224228897UCN-224228897-U

Abstract

The utility model relates to a modularized split axial flow fan which sequentially comprises a front fan shell and a rear fan shell which are arranged together from left to right, wherein an impeller is arranged in the front fan shell, a motor assembly is arranged in the rear fan shell on the right side of the impeller, a plurality of first blades are uniformly distributed on the left side of the impeller along the circumferential direction, a plurality of second blades are uniformly distributed on the right side of the impeller along the circumferential direction, a plurality of diffusers are uniformly distributed on the outer side of the left side of the front motor shell along the circumferential direction, and an outflow opening is formed in the front motor shell on the right side of the impeller. According to the utility model, a continuous airflow path is formed by the diffuser on the motor front shell and the first blade on the impeller, so that airflow impact and vortex generation are reduced, and high-frequency noise is reduced. The utility model improves the modularization degree and suitability of the fan and is convenient for maintenance and product serialization.

Inventors

  • ZHANG ZHIHAO
  • CHEN ZHENGRONG
  • CHEN LI

Assignees

  • 施宾德斯能源科技(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (9)

  1. 1. The modularized split type axial flow fan comprises a fan front shell (1) and a fan rear shell (2) which are arranged together in sequence from left to right, wherein an impeller (13) is arranged in the fan front shell (1), a motor assembly (3) is arranged in the rear shell (2) on the right side of the impeller (13), the motor assembly (3) comprises a motor front shell (10) and a motor rear shell (9) which are arranged together in sequence from left to right, a stator assembly (11) is arranged in the motor rear shell (9), and a rotor assembly (12) arranged in the stator assembly (11) can penetrate through the motor front shell (10) and then is connected with the impeller (13) on the left side; the method is characterized in that: A plurality of first blades (19) are uniformly distributed on the left side of the impeller (13) along the circumferential direction, a plurality of second blades (20) are uniformly distributed on the right side of the impeller (13) along the circumferential direction, a plurality of diffusers (14) are uniformly distributed on the outer side of the left side of the motor front shell (10) along the circumferential direction, and an outflow port (15) is formed in the motor front shell (10) on the right side of the impeller (13); the rotor assembly (12) sequentially comprises a main shaft (16) and a secondary shaft (17) which are arranged together from left to right, and magnetic steel (18) is arranged in the secondary shaft (17).
  2. 2. A modular split axial flow fan according to claim 1, characterized in that a mounting bracket (4) is mounted on the fan front housing (1).
  3. 3. A modular split axial flow fan according to claim 1, characterised in that an air inlet (5) is detachably mounted on the left side of the fan front housing (1).
  4. 4. A modular split axial flow fan according to claim 1, characterised in that an air outlet (6) is provided on the right side of the rear fan housing (2) integrally formed therewith.
  5. 5. A modular split axial flow fan according to claim 1, characterized in that an air outlet pipe (7) and an air inlet pipe (8) are sequentially arranged on the rear fan housing (2) from left to right, the air outlet pipe (7) is communicated with a housing main cavity in the rear fan housing (2), and the air inlet pipe (8) is communicated with a motor cooling cavity in the rear motor housing (9).
  6. 6. A modular split axial flow fan as claimed in claim 1, wherein the diffuser (14) is of arcuate vane block construction.
  7. 7. A modular split axial flow fan according to claim 1, characterized in that the diffuser (14) is detachably mounted on the motor front housing (10).
  8. 8. A modular split axial flow fan according to claim 1, wherein the first blades (19) are arc-shaped blade structures exhibiting a helical distribution, and the second blades (20) are strip-shaped blade structures.
  9. 9. A modular split axial flow fan according to claim 1, wherein the drainage outlets (15) are horn-like structures which are sequentially distributed in a diffusing manner from right to left.

Description

Modular split axial flow fan Technical Field The utility model relates to the technical field related to compressor cooling, in particular to a modularized split axial flow fan. Background The axial flow fan has very wide application, namely, a fan with the air flow direction being the same as the axis of the fan blade, such as an electric fan, and an air conditioner external fan is an axial flow running fan. This is called "axial flow" because the gas flows parallel to the fan axis. Axial fans are commonly used in applications where flow requirements are high and pressure requirements are low. The axial flow fan fixes the position and moves the air. The Chinese patent publication No. CN217233829U discloses an axial flow fan which comprises an air guide backboard, a motor, an impeller, a shell, a cooling air pipe and a cooling air pipe, wherein the air guide backboard comprises a hollow bearing and an outer ring, air guide blades are clamped between the hollow bearing and the outer ring, a plurality of cooling air inlet holes are circumferentially distributed on the outer ring, the motor is connected with the outer ring of the hollow bearing, an output shaft of the motor penetrates through the inner ring of the hollow bearing, the interior of the motor is communicated with the cooling air inlet holes, the impeller is connected with the output shaft of the motor, the shell is connected with the outer ring, the shell is sleeved on the periphery of the impeller, a negative pressure exhaust hole is formed in the shell, one end of the cooling air pipe is connected with the negative pressure exhaust hole, and the other end of the cooling air pipe is communicated with the interior of the motor. In summary, in the existing axial flow fan, the straight plate type blades are easy to generate airflow separation during rotation, particularly vortex is formed at the junction of the root and the tip of the blades, and the air directly enters the straight cylindrical channel from the outlet of the impeller, so that the static pressure recovery efficiency is low. In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a modular split axial flow fan, which has a more industrial utility value. Disclosure of utility model In order to solve the technical problems, the utility model aims to provide a modularized split axial flow fan. In order to achieve the above purpose, the utility model adopts the following technical scheme: The modularized split axial flow fan comprises a front fan shell and a rear fan shell which are arranged together in sequence from left to right, wherein an impeller is arranged in the front fan shell, a motor assembly is arranged in the rear shell on the right side of the impeller, the motor assembly comprises a front motor shell and a rear motor shell which are arranged together in sequence from left to right, a stator assembly is arranged in the rear motor shell, and a rotor assembly arranged in the stator assembly can penetrate through the front motor shell and then is connected with the left impeller; a plurality of first blades are uniformly distributed on the left side of the impeller along the circumferential direction, a plurality of second blades are uniformly distributed on the right side of the impeller along the circumferential direction, a plurality of diffusers are uniformly distributed on the outer side of the left side of the motor front shell along the circumferential direction, and an outflow port is formed on the motor front shell on the right side of the impeller; The rotor assembly sequentially comprises a main shaft and a secondary shaft which are arranged together from left to right, and magnetic steel is arranged in the secondary shaft. As a further improvement of the utility model, a mounting bracket is mounted on the blower front housing. As a further improvement of the utility model, an air inlet is detachably arranged on the left side of the front shell of the fan. As a further improvement of the utility model, an air outlet which is integrally formed with the rear shell of the fan is arranged on the right side of the rear shell of the fan. As a further improvement of the utility model, an air outlet pipeline and an air inlet pipeline are sequentially arranged on the rear shell of the fan from left to right, the air outlet pipeline is communicated with a shell main cavity in the rear shell of the fan, and the air inlet pipeline is communicated with a motor cooling cavity in the rear shell of the motor. As a further improvement of the utility model, the diffuser has an arc-shaped vane block structure. As a further improvement of the utility model, the diffuser is detachably mounted on the motor front housing. As a further improvement of the utility model, the first blades are arc-shaped blade structures which are spirally distributed, and the second blades are strip-shaped blade structures. As a further improvement of the u