TWI486528B - Centrifugal air pump - Google Patents

Description

Centrifugal air pump

The invention relates to an air pump.

An air pump is a device that increases the pressure of a gas and causes it to flow, with a variety of different operational designs. Centrifugal air pumps are one of them.

Centrifugal air pumps require a motor to drive the blades in the pump to rotate. When the rotational speed requirement of the motor is higher and higher, the more power is required to be converted by the drive module in the pump, so the operating temperature of the drive module is also higher. Most of the conventional drive modules are assembled with the motor, so the heat dissipation of the drive module is not easy, and the higher operating temperature also causes the service life of the drive module to be shortened. In addition, when the drive module is damaged, it is usually necessary to remove the motor when replacing the drive module, in order to replace the new drive module, which requires more man-hours. Due to the above problems, there is still room for improvement in the centrifugal air pump.

Accordingly, it is an object of the present invention to provide an improved centrifugal air pump.

According to the above object of the present invention, a centrifugal air pump is provided, which comprises a casing, a motor, a centrifugal airflow module, and one side loss. Outlet channel, a drive module and an air outlet cover. The housing has a top air inlet and a side air outlet. The motor is fixed to the bottom of the housing. The centrifugal airflow module is disposed on the motor and is driven by the motor to draw airflow from the jacking air inlet and output through the side air outlet. The side output channel is located at a side of the housing and has an opening. The drive module is detachably located in the side output channel and is used to drive input power to drive the motor to rotate. The air outlet cover is detachably coupled to the opening, and the side air outlet is located on the air outlet cover.

According to another embodiment of the invention, the housing is a disk body.

According to another embodiment of the invention, the air outlet cover is attached to the opening with a screw.

According to another embodiment of the invention, the side output channel has a flat side wall and the drive module is detachably located on the flat side wall.

According to another embodiment of the invention, the drive module has a heat sink.

According to another embodiment of the invention, the housing has a top cover and the top inlet port is located on the top cover.

According to another embodiment of the invention, the centrifugal airflow module includes a pressurized module between the two rotating blades.

According to another embodiment of the present invention, the pressurizing module is a disc-shaped pressurizing module having a plurality of radiating spiral airflow passages.

According to another embodiment of the present invention, each of the rotating blades includes a plurality of driving blades sandwiched between the two annular segments.

According to another embodiment of the invention, the rotating shaft of the motor is coupled to the two rotating blades and drives the two rotating blades to rotate.

It can be seen from the above that the centrifugal air pump of the present invention is applied by The driving module is detachably assembled in the side output channel, so that the driving module during operation can be cooled by the output airflow at the same time, thereby reducing the operating temperature thereof. In addition, the opening of the side output passage has a detachable air outlet cover. When the air outlet cover is disassembled, the drive module can be easily disassembled and installed without the need to simultaneously disassemble, install the motor or the centrifugal air flow module and other structures in the pump, thereby reducing the assembly and assembly time of the drive module.

100‧‧‧Centrifugal air pump

102‧‧‧ housing

103‧‧‧ side output channel

103a‧‧‧ Opening

103b‧‧‧flat side wall

104‧‧‧Top cover

104a‧‧‧Intake port

106‧‧‧Exhaust cover

106a‧‧‧ side air outlet

106b‧‧‧screw

108‧‧‧Motor

108a‧‧‧ shaft

109‧‧‧Centrifugal airflow module

110‧‧‧Rotating blades

110a‧‧‧ center air inlet

110b‧‧‧Wind-blade

110d‧‧‧ ring piece

112‧‧‧ Pressurized module

112a‧‧‧Base

112b‧‧‧ top board

112c‧‧‧arc

112d‧‧‧ air passage

112e‧‧‧Center hole

114‧‧‧Rotating blades

120‧‧‧Drive Module

122‧‧‧ Heat sink

Fig. 1 is a perspective view showing a centrifugal air pump according to an embodiment of the present invention.

Figure 2 is an exploded view of the centrifugal air pump of Figure 1.

Fig. 3A is an enlarged view showing the rotary vane of Fig. 2.

Figure 3B is a top view of the rotating blade of Figure 3A.

Fig. 4A is an enlarged view showing the pressurizing module of Fig. 2.

Fig. 4B is a top view showing the pressurizing module of Fig. 4A.

The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. The spirit and scope of the invention are not departed.

In order to solve the problem that the driving module of the conventional centrifugal air pump has a short service life and is difficult to replace after damage, the present invention proposes an improved departure. The core air pump has its drive module located in the side output channel of the pump, so it can be easily replaced by the output airflow and damaged.

Please refer to FIG. 1 , which is a perspective view of a centrifugal air pump according to an embodiment of the invention. The housing 102 of the centrifugal air pump 100 has a top inlet port 104a and a side outlet port 106a. When the centrifugal air pump 100 is operated, the airflow is sucked from the top inlet port 104a, and is outputted through the side air outlet 106a after being pressurized. The housing 102 has a top cover 104 and a top inlet port 104a is located on the top cover 104. The top cover 104 is detachably coupled to the upper side of the housing 102. The housing 102 further has an air outlet cover 106, and the side air outlet 106a is located on the air outlet cover 106. In this embodiment, the housing 102 is a disk body, but is not limited thereto.

Please refer to FIG. 2, which shows an exploded view of the centrifugal air pump of FIG. 1. As can be seen from the drawings, the motor 108 is fixed to the bottom of the housing 102. The centrifugal airflow module 109 is disposed above the motor 108 and is operated by the drive of the motor 108. The centrifugal airflow module 109 includes a pressurization module 112 located between the two rotating blades (110, 114). The rotating shaft 108a of the motor 108 (through the central hole 112e of the pressing module 112) simultaneously connects the two rotating blades (110, 114), and drives the two rotating blades (110, 114) to rotate to drive the airflow to be sucked from the jacking port 104a and The side air outlet 106a is output (please refer to FIG. 1 at the same time).

In the present embodiment, the housing 102 has a side output passage 103 having an opening 103a. The drive module 120 is detachably fixed in the side output passage 103 (for example, fixed by screwing). The function of the drive module 120 is to convert the input electrical energy to drive the motor 108 to rotate. Drive mode Group 120 includes functions such as alternating current to direct current and has a plurality of active and passive components. When the driving module 120 is operated for a period of time, the operating temperature of the components on the module will gradually increase. The driving module 120 is located in the side output channel 103 and close to the opening 103a. On the one hand, it receives the cooling of the airflow in the side output channel 103, and on the other hand, facilitates disassembly and assembly. In addition, the driving module 120 can also have a heat sink 122 to increase the heat dissipation surface area and enhance the heat dissipation performance. In the present embodiment, the side output channel 103 has a flat side wall 103b, and the driving module 120 is detachably fixed to the flat side wall 103b (for example, fixed by a screw in the figure).

Further, the air outlet cover 106 is also detachably coupled to the opening 103a of the side output passage 103. When the air outlet cover 106 is disassembled, the drive module 120 can be removed and installed. In the present embodiment, the air outlet cover 106 is attached to the opening 103a with a screw 106b.

Please refer to FIG. 3A and FIG. 3B simultaneously, FIG. 3A is an enlarged view of the rotary blade of FIG. 2, and FIG. 3B is a top view of the rotary blade of FIG. 3A. Each of the rotating blades 110 (or 114) includes a plurality of wind deflecting blades 110b sandwiched between the two annular segments 110d. The wind-driven arc piece 110b forms a plurality of divided flow paths between the two annular pieces 110d. When the rotary vane 110 (or 114) is rotated, the air flow is sucked by the center air inlet 110a of the rotary vane 110 (or 114), enters the separated flow passage, and is outputted from the surroundings (refer to the arrow in Fig. 3A).

Please refer to FIG. 4A and FIG. 4B simultaneously. FIG. 4A is an enlarged view of the pressurizing module of FIG. 2, and FIG. 4B is a top view of the pressurizing module of FIG. 4A. The pressing module 112 is a disc-shaped pressing module, which has a complex A plurality of radiating spiral air flow passages 112d. The pressing module 112 has a circular base 112a and a circular top plate 112b, and a plurality of curved members 112c are located between the top plate 112b and the base 112a, thereby forming a plurality of radiating spiral air flow passages 112d. Referring to FIG. 2 at the same time, the airflow of the pressurizing module 112 is from the upper rotating blade 114, and is pressurized by the inlet around the plurality of airflow passages 112d and outputted (downward) by the central hole 112e. Then, the rotating blade 110 under the pressing module 112 performs the same rotating motion as the rotating blade 114 to drive the airflow output through the side output channel 103, and simultaneously cools the driving module 120, thereby lowering the operating temperature thereof.

According to the embodiment of the present invention, the centrifugal air pump of the present invention is detachably assembled in the side output channel by the driving module, so that the driving module during operation can be cooled by the output airflow at the same time, thereby reducing Its working temperature. In addition, the opening of the side output passage has a detachable air outlet cover. When the air outlet cover is disassembled, the drive module can be easily disassembled and installed without the need to simultaneously disassemble, install the motor or the centrifugal air flow module and other structures in the pump, thereby reducing the assembly and assembly time of the drive module.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Centrifugal air pump

102‧‧‧ housing

104‧‧‧Top cover

104a‧‧‧Intake port

106‧‧‧Exhaust cover

106a‧‧‧ side air outlet

Claims (6)

A centrifugal air pump comprises: a casing having a top inlet port and a side outlet; a motor fixed to the bottom of the casing; a centrifugal airflow module disposed on the motor and subject to The motor is driven to draw air from the top inlet port and output through the side air outlet. The centrifugal air flow module comprises a pressing module and two rotating blades, and the pressing module is a disc-shaped pressing mold. The group has a plurality of radiating spiral airflow passages, wherein each of the rotating blades includes a plurality of driving wind blades sandwiched between the two annular segments, the rotating shaft of the motor connecting the two rotating blades, and driving the two rotating blades to rotate; a side output channel is located at a side of the housing and has an opening; a driving module is detachably located in the side output channel, and is configured to switch input power to drive the motor to rotate; and an air outlet cover, Removably coupled to the opening, the side air outlet is located on the air outlet cover. The centrifugal air pump of claim 1, wherein the housing is a disk body. The centrifugal air pump of claim 1, wherein the air outlet cover is screwed to the opening. a centrifugal air pump as claimed in claim 1, wherein the side output The channel has a flat sidewall, and the driving module is detachably fixed to the flat sidewall. The centrifugal air pump of claim 1, wherein the driving module has a heat sink. The centrifugal air pump of claim 1, wherein the housing has a top cover and the top inlet port is located on the top cover.