Centrifugal pump with cooling fan

Abstract

The utility model discloses a centrifugal pump with a cooling fan, which has the advantage of good cooling effect. The centrifugal pump with the cooling fan comprises a motor, a pump base, a driving shaft, a driving impeller, a volute and the cooling fan, the motor is installed on the pump base, a liquid outlet flow channel is formed in the pump base, the driving shaft is rotatably installed on the pump base and connected to the output end of the motor, the motor drives the driving shaft to rotate, the driving impeller is installed on the driving shaft, and the volute is connected with the cooling fan. The volute is installed at the bottom of the pump base, a liquid pressing cavity is formed in the volute and communicated with the liquid outlet flow channel, the driving impeller is arranged in the liquid pressing cavity, the pump base is provided with a liquid inlet communicated with the liquid pressing cavity, the cooling fan is arranged above the motor and right faces the motor, the cooling fan is also installed at the output end of the motor, and the motor drives the cooling fan to rotate. And a plurality of radiating convex ribs are arranged on the side wall of the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal pump field especially centrifugal pump with heat dissipation fan. BACKGROUND

[0002] Centrifugal pump is the pump that the centrifugal force produced when the impeller rotates is used to transport liquid, the impeller is driven to do high-speed rotary motion through the pump shaft, water is made to happen centrifugal motion by the rotation of the impeller, water happens centrifugal motion and is thrown to the edge of the impeller, and the flow channel of the volute is used to flow into the water pump pressure water pipeline. The existing centrifugal pump can produce a large amount of heat when working, so a single fan is usually matched to assist heat dissipation, but the heat dissipation effect is still not ideal.

[0003] Therefore, a centrifugal pump with heat dissipation fan with good heat dissipation effect is needed to overcome the above defects. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a centrifugal pump with heat dissipation fan with good heat dissipation effect.

[0005] To realize above-mentioned purpose, the centrifugal pump with heat dissipation fan of the utility model, including motor, pump seat, drive shaft, drive impeller, volute and heat dissipation fan, the motor is installed in the pump seat, the pump seat has a liquid outlet flow channel, the drive shaft is rotatably installed in the pump seat, the drive shaft is connected to the output end of the motor, the motor drives the drive shaft to rotate, the drive impeller is installed on the drive shaft, the volute is installed at the bottom of the pump seat, the volute has a liquid pressure cavity, the liquid pressure cavity is communicated with the liquid outlet flow channel, the drive impeller is arranged in the liquid pressure cavity, the pump seat is provided with a liquid inlet communicated with the liquid pressure cavity, the heat dissipation fan is arranged above the motor and directly opposite the motor, the heat dissipation fan is also installed on the output end of the motor, the motor drives the heat dissipation fan to rotate, and the side wall of the motor is provided with a plurality of heat dissipation convex ribs.

[0006] Preferably, the plurality of heat dissipation convex ribs are arranged in a circle on the side wall of the motor, and the heat dissipation convex ribs are arranged in pairs with a spacing therebetween.

[0007] Preferably, the heat dissipation convex ribs extend in the up-down direction.

[0008] Preferably, a protective cover is installed on the top of the motor, a plurality of air guide through holes are formed in the top of the protective cover, and the heat dissipation fan is arranged in the protective cover.

[0009] Preferably, the drive shaft passes through the liquid inlet.

[0010] Preferably, the pump seat comprises an upper seat body, a lower seat body, a guide pipe and a connecting body connected to the upper seat body and the lower seat body at two ends, the lower seat body is arranged below the upper seat body, the motor is installed on the top of the upper seat body, the liquid inlet is formed in the lower seat body, the volute is installed at the bottom of the lower seat body, the lower end of the guide pipe is connected to the lower seat body, the upper end of the guide pipe extends towards the upper seat body, and the liquid outlet flow channel is arranged in the guide pipe.

[0011] Preferably, the pump base further comprises a receiving body arranged between the upper body and the lower body, and the connecting body is further connected with the receiving body, and the upper body and the receiving body enclose a containing space, and the upper end of the guide pipe is arranged in the containing space.

[0012] Preferably, the upper end of the guide pipe is further connected with the upper body and the receiving body respectively, and the liquid outlet channel is radially outwardly opened at the upper end of the guide pipe.

[0013] Preferably, the upper body, the lower body and the receiving body are plate-shaped members, and the connecting body is in a strip shape.

[0014] Preferably, the volute is detachably mounted on the bottom of the lower body by screws.

[0015] Compared with the prior art, the centrifugal pump with a cooling fan provided by the utility model has the advantages that the cooling fan is arranged above the motor, and the motor drives the cooling fan to rotate, thereby disturbing the airflow above the motor, the airflow contacts the side wall of the motor to dissipate heat, and the motor side is provided with a plurality of heat dissipation protrusions, the heat dissipation protrusions increase the area of the motor for dissipating heat to the outside, thereby effectively improving the heat dissipation effect of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the centrifugal pump with a cooling fan of the utility model.

[0017] Figure 2 It is a perspective view of the centrifugal pump with a cooling fan of the utility model after being separated from the volute.

[0018] Figure 3 It is a left view of the centrifugal pump with a cooling fan of the utility model.

[0019] Figure 4 It is a perspective view of the centrifugal pump with a cooling fan of the utility model after being separated from the protective shell.

[0020] Figure 5 It is a perspective view of the centrifugal pump with a cooling fan of the utility model along Figure 3The sectional view obtained after cutting along line segment AA. Detailed Implementation

[0021] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] like Figures 1 to 5 As shown, this utility model provides a centrifugal pump 100 with a cooling fan, including a motor 10, a pump base 20, a drive shaft 30, a drive impeller 40, a volute 50, and a cooling fan 60. The motor 10 is mounted on the pump base 20, which has a liquid outlet channel 21. The drive shaft 30 is rotatably mounted on the pump base 20 and is connected to the output end of the motor 10. The motor 10 drives the drive shaft 30 to rotate. The drive impeller 40 is mounted on the drive shaft 30, and the rotation of the drive shaft 30 caused by the motor 10 drives the rotation of the drive impeller 40. The volute 50 has a liquid pressure chamber 51, which is connected to the liquid outlet channel 21. The drive impeller 40 is located in the liquid pressure chamber 51. The pump base 20 has an inlet 22 that is connected to the liquid pressure chamber 51. The cooling fan 60 is located above the motor 10 and directly opposite the motor 10. The cooling fan 60 is also installed at the output end of the motor 10. The motor 10 drives the cooling fan 60 to rotate. The side wall of the motor 10 is provided with multiple heat dissipation ribs 11.

[0023] Motor 10 drives drive shaft 30 to rotate, and liquid is drawn into pressure chamber 51 from inlet 22. This drives drive impeller 40 to move at high speed in pressure chamber 51, forcing the liquid between the blades to rotate at approximately constant angular velocity. Due to centrifugal force, the liquid moves radially from the center of drive impeller 40 to the outer edge. The liquid gains energy during its movement within the impeller and leaves the outer edge of drive impeller 40 at high speed, entering volute 50. Inside volute 50, the liquid decelerates due to the gradual expansion of the flow channel, converting some of its kinetic energy into potential energy, and then flows to outlet channel 21 and finally out. Simultaneously, motor 10 drives cooling fan 60 to rotate. The rapid rotation of cooling fan 60 disturbs the airflow, cooling motor 10.

[0024] In this utility model, a cooling fan 60 is provided above the motor 10, and the motor 10 drives the cooling fan 60 to rotate, thereby disturbing the airflow above the motor 10. The airflow contacts the side wall of the motor 10 to dissipate heat. In addition, multiple heat dissipation ribs 11 are provided on the side of the motor 10. The provision of heat dissipation ribs 11 increases the heat dissipation area of ​​the motor 10, thereby effectively improving the heat dissipation effect of the motor 10.

[0025] Preferably, the plurality of heat dissipation ribs 11 are arranged in a circle on the side wall of the motor 10, and are arranged in pairs with a spacing therebetween to ensure the heat dissipation effect and efficiency. The heat dissipation ribs 11 extend in the up-down direction to increase the heat dissipation area. Preferably, the heat dissipation ribs 11 are in a sheet structure, but are not limited thereto.

[0026] As shown in Figures 1 to 5 In order to improve the safety in use and protect the heat dissipation fan 60, a protective cover 70 is arranged on the top of the motor 10, and a plurality of air guide holes 71 are arranged on the top of the protective cover 70. When the heat dissipation fan 60 rotates at high speed, the air inside and outside the protective cover 70 can exchange heat through the air guide holes 71. Preferably, the protective cover 70 is in a circular cover shape, but can also be in a square cover shape or other forms according to actual needs.

[0027] As shown in Figures 1 to 5 The drive shaft 30 passes through the liquid inlet 22 to facilitate the installation and arrangement of the drive shaft 30.

[0028] As shown in Figures 1 to 5 The pump base 20 includes an upper seat body 23, a lower seat body 24, a guide pipe 25, and a connecting body 26 connected to the upper seat body 23 and the lower seat body 24 at two ends. The lower seat body 24 is arranged below the upper seat body 23, the motor 10 is arranged on the top of the upper seat body 23, the liquid inlet 22 is arranged on the lower seat body 24, the volute 50 is arranged on the bottom of the lower seat body 24, the lower end of the guide pipe 25 is connected to the lower seat body 24, the upper end of the guide pipe 25 extends towards the upper seat body 23, and the liquid outlet flow channel 21 is arranged in the guide pipe 25. The connecting body 26 connects the upper seat body 23 and the lower seat body 24 and supports them, and the guide pipe 25 is arranged to arrange the liquid outlet flow channel 21 inside.

[0029] Further, the pump base 20 further includes a receiving seat body 27 arranged between the upper seat body 23 and the lower seat body 24, and the connecting body 26 is further connected to the receiving seat body 27. A containing space 28 is surrounded by the upper seat body 23 and the receiving seat body 27, and the upper end of the guide pipe 25 is arranged in the containing space 28 by being bent. The arrangement of the receiving seat body 27 helps to improve the structural stability of the pump base 20, and the upper end of the guide pipe 25 is arranged in the containing space 28 to facilitate the positioning of the upper end of the guide pipe 25. Preferably, the upper end of the guide pipe 25 is further connected to the upper seat body 23 and the receiving seat body 27, respectively, and is connected by means of integral injection molding or fusion connection. The liquid outlet flow channel 21 is opened to the upper end of the guide pipe 25 in the radial direction to facilitate the discharge of the discharged liquid. In the embodiments provided by the present application, the pump base 20 is a plastic or metal part and is made by integral casting.

[0030] As shown in Figures 1 to 5As shown, the upper seat body 23, the lower seat body 24 and the receiving seat body 27 are plate-shaped members, and the connecting body 26 is arranged in a long strip shape, at this time, the liquid can also flow freely through the pump seat 20, and the liquid flow is reduced. The volute 50 is detachably mounted on the bottom of the lower seat body 24 by screws, facilitating disassembly and assembly of the volute 50. The side wall of the motor 10 is also provided with an electric control module 12, which is used to control the working condition of the motor 10.

[0031] The working process of the centrifugal pump 100 with a cooling fan of the utility model is briefly introduced as follows: the motor 10 drives the driving shaft 30 to rotate, drives the driving impeller 40 to rotate, and drives the driving impeller 40 to rotate at high speed in the liquid compression cavity 51 of the volute 50, so that the external liquid is sucked into the liquid compression cavity 51 through the liquid inlet 22, and the liquid between the blades is forced to rotate at an approximate angular velocity. Due to the action of centrifugal force, the liquid moves radially from the center of the driving impeller 40 to the outer edge, the liquid obtains energy in the process of moving in the impeller, and leaves the outer edge of the driving impeller 40 at high speed and enters the volute 50. In the volute 50, the liquid is slowed down due to the gradual expansion of the flow channel, and then flows into the liquid outlet flow channel 21 in the conduit 25, and finally flows out. At the same time, the motor 10 drives the cooling fan 60 to rotate, and the motor 10 is cooled.

[0032] Preferably, the liquid delivered by the centrifugal pump 100 with a cooling fan of the utility model includes but is not limited to water, oil, acid and alkali liquid, emulsion, suspension and the like.

[0033] The above disclosure is only a preferred example of the utility model, and cannot limit the scope of the utility model, so equivalent changes made according to the utility model claims are all within the scope covered by the utility model.

Claims

1. A centrifugal pump with a cooling fan, characterized in that: The pump includes a motor, a pump base, a drive shaft, a drive impeller, a volute, and a cooling fan. The motor is mounted on the pump base, which has a liquid outlet channel. The drive shaft is rotatably mounted on the pump base and connected to the output end of the motor. The motor drives the drive shaft to rotate. The drive impeller is mounted on the drive shaft. The volute is mounted on the bottom of the pump base and has a pressure chamber that communicates with the liquid outlet channel. The drive impeller is located in the pressure chamber. The pump base has an inlet that communicates with the pressure chamber. The cooling fan is located above the motor and directly opposite it. The cooling fan is also mounted on the output end of the motor and drives the cooling fan to rotate. The side wall of the motor has multiple heat dissipation ribs.

2. The centrifugal pump with cooling fan according to claim 1, characterized in that, Multiple heat dissipation ribs are arranged in a circle on the side wall of the motor, and the heat dissipation ribs are spaced apart from each other.

3. The centrifugal pump with cooling fan according to claim 1, characterized in that, The heat dissipation ribs are arranged to extend in the vertical direction.

4. The centrifugal pump with cooling fan according to claim 1, characterized in that, A protective cover is installed on the top of the motor, and multiple air ducts are opened on the top of the protective cover. The cooling fan is located inside the protective cover.

5. The centrifugal pump with cooling fan according to claim 1, characterized in that, The drive shaft passes through the liquid inlet.

6. The centrifugal pump with cooling fan according to claim 1, characterized in that, The pump base includes an upper body, a lower body, a conduit, and a connector whose two ends are respectively connected to the upper body and the lower body. The lower body is located below the upper body. The motor is installed on the top of the upper body. The liquid inlet is located in the lower body. The volute is installed at the bottom of the lower body. The lower end of the conduit is connected to the lower body. The upper end of the conduit extends towards the upper body. The liquid outlet is located inside the conduit.

7. The centrifugal pump with cooling fan according to claim 6, characterized in that, The pump base also includes a receiving body, which is disposed between the upper body and the lower body. The connecting body is also connected to the receiving body. An accommodating space is formed between the upper body and the receiving body. The upper end of the conduit is bent and disposed in the accommodating space.

8. The centrifugal pump with cooling fan according to claim 7, characterized in that, The upper end of the conduit is also connected to the upper seat and the receiving seat respectively, and the liquid outlet channel opens radially outward at the upper end of the conduit.

9. The centrifugal pump with cooling fan according to claim 7, characterized in that, The upper seat, the lower seat, and the receiving seat are plate-shaped components, and the connecting body is arranged in a long strip shape.

10. The centrifugal pump with cooling fan according to claim 6, characterized in that, The volute is detachably mounted to the bottom of the lower body by screws.

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