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CN-224214411-U - Direct-connected high-temperature-resistant fan

CN224214411UCN 224214411 UCN224214411 UCN 224214411UCN-224214411-U

Abstract

The utility model relates to the technical field of fan equipment, in particular to a direct-connected high-temperature-resistant fan which comprises a fan, wherein a motor is arranged on the back surface of the fan, an output shaft of the motor is directly connected with the fan to drive the fan to work, and an airflow control assembly is arranged between the outside of the motor and the fan. The utility model removes the impeller at the head of the motor, reduces the influence on the power of the motor, utilizes the heat dissipation impeller to suck air from the tail of the motor, utilizes the air guide cover to wrap the shell, can guide the air flow blown out by the heat dissipation impeller to move along the air guide plate, ensures the heat dissipation effect and saves space, utilizes the negative pressure of the air inlet pipe to suck the air flow in the air guide cover by arranging the bypass pipe, can improve the heat dissipation efficiency, and utilizes the three-way valve to work, can control the air flow rate flowing to the bypass pipe and satisfies the heat dissipation under various working conditions.

Inventors

  • GUO BO
  • JIN WANBING
  • QIAN AN
  • LI YIJIE

Assignees

  • 宣城巴法洛风机有限公司

Dates

Publication Date
20260508
Application Date
20250624

Claims (7)

  1. 1. The utility model provides a high temperature resistant fan of direct-connected formula which characterized in that includes: The fan (1), the back of fan (1) is equipped with motor (2), motor (2) output shaft and fan (1) are directly connected and are used for driving fan (1) work, be equipped with airflow control assembly (3) between outside motor (2) and fan (1); the tail end of the output shaft is connected with a heat dissipation impeller (23), and the heat dissipation impeller (23) is used for blowing air towards the head of the motor (2); The airflow control assembly (3) comprises a guide cover (31), the surface of the guide cover (31) wraps the motor (2) and is used for limiting airflow blown out by the heat dissipation impeller (23) to move along the surface of the motor (2), and an airflow guiding assembly is arranged at the end of the guide cover (31) and is used for guiding the airflow to leave the guide cover (31) and selecting an airflow discharging path.
  2. 2. The direct-connection high-temperature-resistant fan as claimed in claim 1, wherein the fan (1) comprises a machine body (12), a first impeller (13) is rotatably arranged in the machine body (12), an output shaft of the motor (2) penetrates through the machine body (12) to be connected with the first impeller (13), and the motor (2) drives the first impeller (13) to rotate when working.
  3. 3. A direct-connection type high-temperature-resistant fan as set forth in claim 2, wherein the front surface of the main body (12) is provided with an air inlet pipe (14), the side surface is provided with an air outlet pipe (15), air flows into the air inlet pipe (14) and is discharged from the air outlet pipe (15) when the first impeller (13) rotates, a bypass pipe (16) is arranged below the middle part of the air inlet pipe (14), and the air flow guide assembly is connected with the bypass pipe (16).
  4. 4. The direct-connection high-temperature-resistant fan as claimed in claim 1, wherein the motor (2) comprises a shell (21), a plurality of air deflectors (22) are axially arranged on the surface of the shell (21), a protective cover (24) is arranged at the tail end of the shell (21), the protective cover (24) wraps the heat dissipation impeller (23), and gaps are reserved between the inner side surface of the air deflector (31) and the top surface of the air deflectors (22).
  5. 5. The direct-connection high-temperature-resistant fan as set forth in claim 4, wherein a plurality of avoidance grooves (32) are formed in the middle of the guide cover (31) in a backwards penetrating mode, and the avoidance grooves (32) are used for avoiding structural components, the surface of the shell (21) of which is higher than the air deflector (22).
  6. 6. The direct-connection high-temperature-resistant fan as set forth in claim 3, wherein the air flow guiding assembly comprises a wind collecting cover (34), the wind collecting cover (34) is fixedly arranged at the head of the air guiding cover (31), and a three-way valve is arranged at the bottom of the wind collecting cover (34) and used for controlling the air flow direction.
  7. 7. A direct-connection high temperature resistant fan as set forth in claim 6, wherein one of said three-way valve outlets is connected with a second exhaust duct (38), said second exhaust duct (38) bypasses the main body (12) and is connected with the bypass duct (16), and the other outlet of said three-way valve is directly connected with the atmosphere.

Description

Direct-connected high-temperature-resistant fan Technical Field The utility model relates to the technical field of fan equipment, in particular to a direct-connected high-temperature-resistant fan. Background The traditional high-temperature fan generally adopts a coupler or belt transmission structure to separate the motor from high-temperature airflow, so that the motor is prevented from working at high temperature and the service life is prevented from being influenced. However, this method requires a space for installation, and a direct fan is required for the occasion where the space is limited. Traditional direct-connected high temperature resistant fan can set up a little flabellum at the fan back and be located motor output shaft middle part, and extraction outside air cooperates the radiator fan of motor afterbody, realizes motor and output shaft heat dissipation. But newly-increased fan blades extract gaps near the fan, the fan itself works under the high-temperature condition, the ambient air temperature is higher, the heat dissipation effect is limited, and in addition, the newly-increased fan blades can reduce the output power of the motor. Disclosure of utility model In order to make up for the defects, the utility model provides a direct-connected high-temperature-resistant fan. The technical scheme of the utility model is as follows: a direct-connected high temperature resistant fan comprising: The fan is provided with a motor on the back surface, the output shaft of the motor is directly connected with the fan for driving the fan to work, and an airflow control assembly is arranged between the outside of the motor and the fan; The tail end of the motor output shaft is connected with a heat dissipation impeller which is used for blowing air towards the direction of the motor head; The airflow control assembly comprises a guide cover, the guide cover wraps the surface of the motor and is used for limiting airflow blown out by the heat dissipation impeller to move along the surface of the motor, and an airflow guiding assembly is arranged at the end part of the guide cover and is used for guiding the airflow to leave the guide cover and selecting an airflow discharging path. Preferably, the fan comprises a machine body, a first impeller is rotatably arranged in the machine body, an output shaft of the motor penetrates through the machine body to be connected with the first impeller, and the motor drives the first impeller to rotate during working. Preferably, the front of the machine body is provided with an air inlet pipe, the side face of the machine body is provided with an air outlet pipe, air flows enter from the air inlet pipe and are discharged from the air outlet pipe when the first impeller rotates, a bypass pipe is arranged below the middle part of the air inlet pipe, and the air flow guide assembly is connected with the bypass pipe. Preferably, the motor comprises a casing, a plurality of air deflectors are axially arranged on the surface of the casing, a protective cover is arranged at the tail end of the casing, the protective cover wraps the heat dissipation impeller, and a gap is reserved between the inner side surface of the air deflector and the top surface of the air deflector. Preferably, the middle part of the air guide sleeve is backwards penetrated and provided with a plurality of avoidance grooves, and the avoidance grooves are used for avoiding structural components with the surface higher than the air guide plate of the shell. Preferably, the airflow guiding assembly comprises a wind collecting cover, the wind collecting cover is fixedly arranged on the head of the air guiding cover, a three-way valve is arranged at the bottom of the wind collecting cover and used for controlling the airflow direction. Preferably, one outlet of the three-way valve is connected with a second exhaust pipe, the second exhaust pipe bypasses the machine body and is connected with a bypass pipe, and the other outlet of the three-way valve is directly connected with the atmosphere. Compared with the prior art, the utility model has the beneficial effects that: The utility model removes the impeller at the head of the motor, reduces the influence on the power of the motor, utilizes the heat dissipation impeller to suck air from the tail of the motor, utilizes the air guide cover to wrap the shell, can guide the air flow blown out by the heat dissipation impeller to move along the air guide plate, ensures the heat dissipation effect and saves space, utilizes the negative pressure of the air inlet pipe to suck the air flow in the air guide cover by arranging the bypass pipe, can improve the heat dissipation efficiency, and utilizes the three-way valve to work, can control the air flow rate flowing to the bypass pipe and satisfies the heat dissipation under various working conditions. Drawings FIG. 1 is a first schematic view of the overall structure of the present utility model; FIG. 2 is a sch