Swimming pool pump with frequency conversion module

Abstract

The utility model relates to a swimming pool pump with a frequency conversion module, and relates to the technical field of swimming pool pump equipment.The swimming pool pump comprises a motor body, a shell covering the circumferential side wall of the motor body and the frequency conversion module connected to the shell, an air inlet and an air outlet are formed in the shell, one end of the motor body is rotationally connected with a fan, and the other end of the motor body is rotationally connected with the frequency conversion module; the fan is located on the inner side of the shell and is close to one side of the air inlet, the frequency conversion module is arranged on one side of the motor body, and the motor body and the shell are matched to form a ventilation channel for air to be sucked in from the air inlet and discharged from the air outlet. The cooling capacity of the motor body and the electronic control module is improved.

Description

Technical Field

[0001] This application relates to the technical field of pool pump equipment, and in particular, to a pool pump with a frequency conversion module. Background Art

[0002] A pool pump is a power device for conveying, which is a horizontal direct-connected centrifugal pump. Its motor has an extended shaft directly connected to the impeller and is equipped with a pre-set filter.

[0003] In related technologies, as disclosed in the Chinese patent with the publication number CN204731728U, a small pool pump includes an impeller, a housing, a motor body located inside the housing, a fan for cooling the motor, etc. One end of the drive shaft of the motor extends to one end of the housing to drive the impeller to rotate, and the other end of the drive shaft of the motor is connected to the fan located inside the end cover at the other end of the housing. Fins for heat dissipation are connected circumferentially to the motor body. The fan inhales air through the air inlet at the end of the housing and discharges it through the air outlet on the housing. A programmable frequency conversion module is installed on the motor to control the speed and start / stop of the motor.

[0004] Since the frequency conversion module is located on the circumferential side wall of the motor body, after the pool pump works for a long time, the heat dissipated by the motor body towards the surroundings through the fins has a relatively large impact on the operation of the frequency conversion module, thereby causing certain damage to the pool pump itself, and there is still room for improvement. Summary of the Utility Model

[0005] In order to enhance the cooling capacity of control modules such as the frequency converter installed on the motor, this application provides a pool pump with a frequency conversion module.

[0006] A pool pump with a frequency conversion module provided by this application adopts the following technical solutions:

[0007] A pool pump with a frequency conversion module includes a motor body, a housing covering the circumferential side wall of the motor body, and a frequency conversion module connected to the housing. The housing is provided with an air inlet and an air outlet. One end of the motor body is rotatably connected with a fan, and the fan is located inside the housing and on the side close to the air inlet. The frequency conversion module is arranged on one side of the motor body. A ventilation duct is formed by the cooperation between the motor body and the housing for air to be inhaled from the air inlet and discharged from the air outlet.

[0008] By adopting the above technical solution, a ventilation duct is formed between the circumferential side wall of the motor body and the housing. Since the frequency conversion module is located on the side of the ventilation duct away from the motor body, the air introduced by the fan moves along the ventilation duct with a unique flow direction and exits from the air outlet at one end of the housing away from the air inlet. During this process, the air can take away part of the heat dissipated circumferentially by the motor, reduce the influence of the heat dissipated by the motor on the frequency conversion module, further reduce the damage to the pool pump, and increase the overall service life of the pool pump.

[0009] Optionally, an impeller part driven by the motor body is installed at one end of the motor body away from the fan, and a sealing end cover for sealing the impeller part is fixedly connected to the end of the impeller part.

[0010] By adopting the above technical solution, the setting of the sealing cover can further seal the impeller part, thereby isolating the impeller part from the motor body, reducing the water flow in the impeller part from pouring into the ventilation duct, and thus increasing the safety of the air flow for cooling.

[0011] Optionally, the ventilation duct includes a first gap, a second gap, and a third gap that communicate with each other. The first gap is formed by the cooperation between the frequency conversion module and the motor body, the second gap is formed by the cooperation between the housing and the circumferential side wall of the motor body, and the third gap is formed by the cooperation between the fan and the end of the motor body.

[0012] By adopting the above technical solution, the specific structure of the ventilation duct is disclosed. The ventilation duct is integrally wound around the circumferential side wall of the motor body, increasing the heat exchange area between the air flow and the motor body, and further improving the cooling efficiency.

[0013] Optionally, the housing includes a base shell for holding the motor body, a side shell connected to the base shell and covering part of the motor body above, and an end shell covering the fan. The air inlet is located on the end shell.

[0014] By adopting the above technical solution, the specific structure of the housing is disclosed. The entire housing is installed by screwing the base shell, the side shell, and the end shell together, which facilitates subsequent disassembly and installation of the housing, and is convenient for the staff to repair the internal motor or clean the ventilation duct.

[0015] Optionally, the air outlet includes a notch part, and the notch part is opened on one side of the base shell close to the sealing end cover.

[0016] By adopting the above technical solution, the specific structure of the air outlet is disclosed. The notches on both side walls of the base shell cooperate with the impeller part to form two notch parts, and the two notch parts are located below the entire housing, so that the air can be blown out from the notch parts on both sides along the ventilation duct, thereby increasing the air replacement speed.

[0017] Optionally, the air outlet further includes a gap portion formed by the gap between the side shell and the impeller portion. The number of the gap portions is three and they are respectively located on the circumferential side wall of the motor body.

[0018] By adopting the above technical solution, the arrangement of the gap portion enables gaps for air passage to exist at the top and both sides of the entire housing, which can increase the number of air outlets without specifically opening holes, facilitating the air in the ventilation duct to leave the ventilation duct more quickly.

[0019] Optionally, a cooling plate is fixedly connected to the side of the variable frequency module close to the motor body, and the cooling plate is located on the side of the first gap away from the motor body.

[0020] By adopting the above technical solution, since hot air is easily dissipated towards the periphery of the motor body and is initially cooled by the air flow, some remaining heat is relatively easy to penetrate the housing and enter the variable frequency module. The arrangement of the cooling plate can further cool this part of the remaining heat and reduce the heat transfer into the variable frequency module.

[0021] Optionally, a plurality of fins are fixedly connected to the circumferential side wall of the motor body.

[0022] By adopting the above technical solution, the arrangement of the fins can accelerate the heat transfer on the motor body, and then the heat is cooled by the air in the ventilation duct, increasing the heat dissipation speed.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The arrangement of the ventilation duct enables the air flow to take away some of the heat dissipated circumferentially by the motor during the process of the fan rotating and the air entering from the air inlet and leaving from the air outlet, reducing the influence of the heat dissipated by the motor on the variable frequency module, further reducing the damage to the pool pump, and increasing the overall service life of the pool pump;

[0025] 2. The housing is specifically installed by screwing together the base shell, the side shell and the end shell, which facilitates subsequent disassembly and installation of the housing, and is convenient for the staff to repair the internal motor or clean the ventilation duct;

[0026] 3. The arrangement of the cooling plate can further cool this part of the remaining heat and reduce the heat transfer into the variable frequency module. Description of the Drawings

[0027] Figure 1 It is the overall structure diagram of a pool pump with a variable frequency module in an embodiment of the present application.

[0028] Figure 2It is a cross-sectional view of a pool pump with a frequency conversion module in an embodiment of the present application.

[0029] Figure 3 It is a partial exploded view of a pool pump with a frequency conversion module in an embodiment of the present application.

[0030] Figure 4 It is a bottom view of a pool pump with a frequency conversion module in an embodiment of the present application.

[0031] Explanation of reference numerals: 1, motor body; 11, air inlet; 12, air outlet; 121, notch part; 122, gap part; 13, fan; 14, fin; 2, frequency conversion module; 21, cooling plate; 3, housing; 31, base housing; 32, side housing; 33, end housing; 4, ventilation duct; 41, first gap; 42, second gap; 43, third gap; 5, impeller part; 51, impeller housing; 511, impeller cavity; 512, water outlet pipe; 52, rotating impeller; 53, sealing end cover; 6, filtering part; 61, opening; 62, lower filtering housing; 621, filtering cavity; 622, water inlet pipe; 623, communication hole; 63, cover housing; 64, filter. Detailed implementation manners

[0032] The following further elaborates on the present application Figures 1-4 in conjunction with the attached drawings.

[0033] An embodiment of the present application discloses a pool pump with a frequency conversion module. Referring to Figure 1 and Figure 2 , a pool pump with a frequency conversion module includes a motor body 1, a frequency conversion module 2, and a housing 3. The housing 3 is installed on the circumferential side wall of the motor body 1 to cover the motor body 1. The frequency conversion module 2 is connected to the housing 3 by screws and is located above the motor body 1, thereby further controlling the rotation speed and on / off of the motor, etc.

[0034] Referring to Figure 1 and Figure 2 , the housing 3 is provided with an air inlet 11 and an air outlet 12. A drive shaft at one end of the motor body 1 is fixedly connected with a fan 13. The fan 13 is located inside the housing 3 and on the side close to the air inlet 11, so that when the motor body 1 operates, it can drive the fan 13 to rotate, and then suck in part of the air flow from the air inlet 11. A ventilation duct 4 is provided between the motor body 1 and the housing 3, so as to form a path for air to be sucked in from the air inlet 11 and discharged from the air outlet 12.

[0035] Referring to Figure 2, the pool pump further includes an impeller part 5 and a filtering part 6 connected to one end of the motor body 1. The filtering part 6 is integrally provided on the side of the impeller part 5 away from the motor body 1. The filtering part 6 is used to filter the water entering the pool pump, and the impeller part 5 drives the water in the pool pump to flow out of the pool pump. The drive shaft at the end of the motor body 1 away from the fan 13 is fixedly connected to the inside of the impeller part 5 for driving the impeller part 5 to work.

[0036] Referring to Figure 2 , the filtering part 6 includes a filtering lower shell 62 with an opening 61, a cover shell 63, and a filter 64. A filtering cavity 621 is formed in the filtering lower shell 62, and the filter 64 is installed in the filtering cavity 621 to filter the water in the filtering cavity 621. The cover shell 63 is snap-connected to the end of the filtering lower shell 62 to cover the opening 61 of the filtering lower shell 62 and preliminarily seal the filtering cavity 621 at the same time. A water inlet pipe 622 communicating with the filtering cavity 621 is fixedly connected to the outer circumferential side wall of the filtering lower shell 62, and external water can enter the filtering cavity 621 through the water inlet pipe 622. Threads are provided on the outer circumferential side wall of the water inlet pipe 622 to facilitate the connection of an external connecting pipe to the water inlet pipe 622.

[0037] Referring to Figure 2 , the impeller part 5 includes an impeller housing 51, a rotating impeller 52, and a sealing end cover 53. An impeller cavity 511 is formed in the impeller housing 51. The rotating impeller 52 is located inside the impeller housing 51. The sealing end cover 53 is snap-connected and covers one end of the impeller housing 51 away from the filtering lower shell 62, thereby reducing the possibility of the water in the impeller part 5 flowing back into the ventilation duct 4. The drive shaft at the end of the motor body 1 away from the fan 13 passes through the sealing end cover 53 and is fixedly connected to the rotating impeller 52 to drive the rotating impeller 52 to rotate. A communication hole 623 communicating with the impeller cavity 511 is formed in the filtering lower shell 62 to facilitate the water in the filtering cavity 621 to enter the impeller cavity 511. A water outlet pipe 512 communicating with the impeller cavity 511 is fixedly connected to one side of the impeller housing 51 close to the cover shell 63 to facilitate the water in the impeller cavity 511 to flow out of the pool pump. Threads are also provided on the outer circumferential side wall of the water outlet pipe 512 to facilitate the connection of an external connecting pipe to the water outlet pipe 512.

[0038] Referring to Figure 2 and Figure 3 , the housing 3 includes a base shell 31 for containing the motor body 1, a side shell 32, and an end shell 33. The base shell 31 and the motor body 1 are fixedly connected by screws, and the base shell 31 semi-covers the bottom of the motor body 1. The side shell 32 semi-covers the top of the motor body 1 and is fixedly connected to the base shell 31 by screws. The end cover is fixedly connected to the base shell 31 and the side shell 32 to cover the fan 13. The air inlet 11 is located on the end shell 33 and is adjacent to the air inlet 11.

[0039] Referring to Figure 2, the ventilation duct 4 includes a first gap 41, a second gap 42, and a third gap 43 that communicate with each other. The first gap 41 is formed by the cooperation between the variable frequency module 2 and the motor body 1. The second gap 42 is formed by the cooperation between the housing 3 and the circumferential side wall of the motor body 1. The third gap 43 is formed by the cooperation between the fan 13 and the end of the motor body 1, so that the entire ventilation duct 4 surrounds the motor body 1, thereby increasing the heat exchange area. In the embodiment of the present application, the flow direction of the ventilation duct 4 is unique, entering through the air inlet 11 and flowing out through the air outlet 12 after passing through the ventilation duct 4.

[0040] Combined with Figure 3 and Figure 4 , the air outlet 12 includes a notch portion 121 and a slit portion 122. The notch portion 121 is opened on one side of the base shell 31 close to the sealing end cover 53, and cooperates with the sealing end cover 53 to form a notch for air to flow out from the lower side of the motor body 1. The slit portion 122 is formed by the gap between the side shell 32 and the impeller portion 5, and the number of the slit portions 122 is three. Two of them are respectively located on two opposite side walls above the pool pump, and the other one is located on the upper top of the pool pump. A plurality of fins 14 are fixedly connected to the outer circumferential side wall of the motor body 1 to accelerate the heat dissipation speed of the motor body 1.

[0041] Referring to Figure 2 , the variable frequency module 2 is fixedly connected to the side of the side shell 32 away from the motor body 1. The variable frequency module 2 is electrically connected to the motor body 1 to control the rotation speed of the motor body 1. A cooling plate 21 is fixedly connected to the side of the variable frequency module 2 close to the motor body 1. The cooling plate 21 is located on the side of the first gap 41 away from the motor body 1 to further cool the variable frequency module 2.

[0042] The implementation principle of a pool pump with a variable frequency module in the embodiment of the present application is as follows: When the pool pump starts to work, the motor body 1 drives the impeller 52 to rotate. External water enters the filtration cavity 621 for filtration, and then flows out from the water outlet pipe 512 through the impeller cavity 511. At this time, the motor body 1 and the variable frequency module 2 generate heat, and the fan 13 rotates to suck air from the air inlet 11 and discharge it from the air outlet 12 after flowing through the ventilation duct 4. During this process, the external air cools the motor body 1 and the variable frequency module 2, thereby increasing the service life of the pool pump.

[0043] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A swimming pool pump with a frequency conversion module, characterized in that: The motor body (1) comprises a motor body (1), a shell (3) covering the circumferential side wall of the motor body (1), and a frequency conversion module (2) connected to the shell (3); the shell (3) is provided with an air inlet (11) and an air outlet (12); one end of the motor body (1) is rotatably connected to a fan (13); the fan (13) is located on the inner side of the shell (3) and close to the air inlet (11); the frequency conversion module (2) is arranged on one side of the motor body (1); the motor body (1) and the shell (3) cooperate to form a ventilation duct (4) for air to be sucked in from the air inlet (11) and discharged from the air outlet (12).

2. A swimming pool pump with a frequency conversion module according to claim 1, characterized in that: An impeller part (5) driven by the motor body (1) is mounted on one end of the motor body (1) away from the fan (13), and a sealing end cover (53) for sealing the impeller part (5) is fixedly connected to the end of the impeller part (5).

3. A swimming pool pump with a frequency conversion module according to claim 2, characterized in that: The ventilation duct (4) comprises a first gap (41), a second gap (42) and a third gap (43) which are interconnected, wherein the first gap (41) is formed by the cooperation between the frequency conversion module (2) and the motor body (1), the second gap (42) is formed by the cooperation between the housing (3) and the circumferential side wall of the motor body (1), and the third gap (43) is formed by the cooperation between the fan (13) and the end of the motor body (1).

4. A swimming pool pump with a frequency conversion module according to claim 3, characterized in that: The housing (3) comprises a base shell (31) for accommodating the motor body (1), a side shell (32) connected to the base shell (31) and covering a portion of the motor body (1), and an end shell (33) covering the fan (13), wherein the air inlet (11) is located on the end shell (33).

5. A swimming pool pump with a frequency conversion module according to claim 4, characterized in that: The air outlet (12) comprises a notch portion (121), and the notch portion (121) is opened on a side of the base shell (31) close to the sealing end cover (53).

6. A swimming pool pump with a frequency conversion module according to claim 5, characterized in that: The air outlet (12) further comprises a slit portion (122), wherein the slit portion (122) is formed by the slit between the side shell (32) and the impeller portion (5), and the number of the slit portions (122) is three and they are respectively located on the circumferential side walls of the motor body (1).

7. A swimming pool pump with a frequency conversion module according to claim 6, characterized in that: A cooling plate (21) is fixedly connected to a side of the frequency conversion module (2) close to the motor body (1), and the cooling plate (21) is located on a side of the first gap (41) away from the motor body (1).

8. The swimming pool pump with a frequency conversion module according to claim 1, characterized in that: A plurality of fins (14) are fixedly connected to the outer peripheral side wall of the motor body (1).

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