Brushless DC water pump with noise reduction effect

Abstract

The utility model provides a kind of brushless direct current water pump with noise reduction effect belongs to brushless direct current water pump technical field, including brushless direct current motor and water pump, water pump is connected with brushless direct current motor output shaft;Brushless direct current motor periphery is provided with the first noise reduction cylinder for noise reduction dust separation, multiple groups for fixing brushless direct current motor and reducing brushless direct current motor noise are installed between the first noise reduction cylinder and brushless direct current motor fixed component;The second noise reduction cylinder for water pump noise reduction is installed in the other end of the first noise reduction cylinder, and ventilation piece for brushless direct current motor cooling is installed on the first noise reduction cylinder.The utility model is by setting first installation groove on impeller blade and installing rubber blade, and the structural setting of setting first noise reduction cylinder and second noise reduction cylinder etc., so that the device can reduce the noise generated in the operation process, by the setting of ventilation piece, so that the device can automatically adjust the heat dissipation of motor.

Description

Technical Field

[0001] This utility model belongs to the field of brushless DC water pump technology, and more specifically, it relates to a brushless DC water pump with noise reduction effect. Background Technology

[0002] In various applications involving liquid transportation, such as home water circulation systems, the performance requirements for brushless DC water pumps are becoming increasingly stringent. Users expect to enjoy a comfortable water experience without being disturbed by the noise generated by the pump operation. At this time, brushless DC water pumps with noise reduction functions become the devices that meet these needs and ensure the quiet operation of the equipment.

[0003] However, traditional brushless DC water pumps lack noise reduction measures. The mechanical noise generated by the motor during operation and the fluid noise caused by the liquid flowing inside the pump can directly propagate into the surrounding space, causing interference to the surrounding environment and affecting people's lives and work. Traditional brushless DC water pumps do not have automatic cooling functions. When the motor operates for a long time or in a high-temperature environment, the motor temperature will continue to rise. Due to the lack of an automatic temperature sensing and adjustment mechanism, excessively high motor temperature may lead to a decrease in motor performance, affecting the overall operating efficiency of the water pump and increasing energy consumption. These problems affect the normal use of the water pump. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a brushless DC water pump with noise reduction effect, thereby solving the technical problem that traditional brushless DC water pumps lack noise reduction measures and automatic cooling functions in the prior art.

[0005] The purpose and effect of this invention, a brushless DC water pump with noise reduction, are achieved by the following specific technical means:

[0006] A brushless DC water pump with noise reduction effect includes a brushless DC motor and a water pump, wherein the water pump is connected to the output shaft of the brushless DC motor;

[0007] The brushless DC motor is provided with a first noise reduction cylinder for noise reduction and dust isolation on its periphery. Multiple sets of fixing components for fixing the brushless DC motor and reducing the noise of the brushless DC motor are installed between the first noise reduction cylinder and the brushless DC motor.

[0008] A second noise reduction cylinder for noise reduction of the water pump is installed at the other end of the first noise reduction cylinder, and a ventilation component for cooling the brushless DC motor is installed on the first noise reduction cylinder.

[0009] According to a preferred embodiment, the water pump includes an impeller and a volute, the volute being sleeved on the output shaft of the brushless DC motor, and the impeller being disposed inside the volute and connected to the output shaft of the brushless DC motor.

[0010] Each impeller blade has a first mounting groove, and a rubber blade for noise reduction is installed in each of the first mounting grooves.

[0011] According to a preferred embodiment, the first noise reduction cylinder includes a first cylinder body and a sealing baffle, the sealing baffle includes a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate are respectively installed at both ends of the first cylinder body;

[0012] The inner wall of the first cylinder is provided with a first silencing groove and six sets of second mounting grooves for installing the fixing components.

[0013] According to a preferred embodiment, the first sealing plate includes a first honeycomb plate, a first dustproof plate, and an annular retaining plate. Six sets of mounting plates are installed on the annular retaining plate, and the six sets of mounting plates are installed in the second mounting groove.

[0014] Both the first honeycomb panel and the first dustproof panel are installed inside the annular card plate, and the first dustproof panel is provided with a second sound-absorbing groove;

[0015] The second sealing plate includes a second honeycomb plate and a second dustproof plate. The second dustproof plate is installed at one end of the first cylinder. A third mounting groove is provided on the second dustproof plate, and the second honeycomb plate is installed in the third mounting groove. A third sound-absorbing groove is provided on the second dustproof plate.

[0016] According to a preferred embodiment, the second noise reduction cylinder includes a second cylinder body and two sets of side plates, wherein one set of the side plates has a through hole and is installed on the second dustproof plate, and the second cylinder body is installed between the two sets of side plates;

[0017] The second cylinder and both sets of side plates are provided with a fourth sound-absorbing groove.

[0018] According to a preferred embodiment, the multiple sets of fixing components are six sets. Each fixing component includes a fixing frame and a first rubber pad. The fixing frame is respectively installed in the second mounting groove. One side of the first rubber pad is connected to the fixing frame and the other end is connected to the brushless DC motor.

[0019] Rubber strips are installed at both ends of the fixing frame, and a fourth sound-absorbing groove is provided on the fixing frame.

[0020] According to a preferred embodiment, the ventilation component includes a fan and a temperature sensor. An air inlet and an air outlet are provided on the first cylinder. Both the air inlet and the air outlet are equipped with filter elements through air delivery pipes.

[0021] The fan is connected to the filter element at the air outlet, and the temperature sensor is mounted on the brushless DC motor;

[0022] The fan is equipped with a control module.

[0023] According to a preferred embodiment, four sets of semicircular rings for mounting devices are installed on the first noise reduction cylinder, and multiple sets of second rubber pads are installed on the inner ring of the semicircular rings.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. This utility model, through the structural design of opening a first mounting groove on the impeller blades and installing rubber blades, as well as setting a first noise reduction cylinder and a second noise reduction cylinder, enables the device to reduce the noise generated during operation and improves the noise reduction performance of the device. The device can absorb the noise generated by the liquid flow when the impeller rotates through the rubber blades. At the same time, the multiple sound-absorbing grooves, honeycomb plates, and dustproof plates of the first and second noise reduction cylinders further block and absorb noise, thereby achieving all-round noise reduction. This makes the device quieter during operation, improves the device's noise control capabilities, and reduces noise interference to the surrounding environment. Whether in a home environment or a noise-sensitive workplace, it can provide users with a quieter environment.

[0026] 2. When using this device, the temperature sensor monitors the temperature of the brushless DC motor to sense its heating status, enabling the device to obtain motor temperature information in a timely manner and improving its sensitivity to temperature changes. Then, the control module controls the operation of the fan based on the information fed back by the temperature sensor, allowing the device to automatically adjust the motor's heat dissipation. When the temperature is too high, the fan increases its airflow, accelerating air circulation through the ventilation system consisting of the air inlet, air outlet, and filter to remove heat, thereby cooling the motor and preventing performance degradation or failure due to overheating. This extends the motor's lifespan and improves the device's ability to automatically regulate temperature and maintain equipment stability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0029] Figure 3 This is a structural schematic diagram of the fixing component of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the first noise reduction cylinder and the second noise reduction cylinder of this utility model;

[0031] Figure 5 This is a schematic diagram of the controller's control principle.

[0032] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0033] 11. Brushless DC motor; 12. Impeller; 13. Volute; 14. First noise reduction cylinder; 15. Rubber blade; 16. First honeycomb panel; 17. First dustproof plate; 18. Annular clamping plate; 19. Mounting plate; 21. Control module; 22. Second honeycomb panel; 23. Second dustproof plate; 24. Semi-circular ring; 25. Second rubber pad; 26. Second cylinder; 27. Side plate; 28. Fixing bracket; 29. ​​First rubber pad; 31. Rubber strip; 32. Fan; 33. Temperature sensor; 34. Filter element. Detailed Implementation

[0034] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0035] Example:

[0036] like Figures 1 to 5 As shown, this utility model provides a brushless DC water pump with noise reduction effect. First, the brushless DC motor 11 serves as the core power component, providing power for the operation of the water pump. The brushless DC motor 11 provides stable power output, enabling the device to achieve stable liquid transport and improving its power performance. The water pump is connected to the output shaft of the brushless DC motor 11, and includes an impeller 12 and a volute 13. The impeller 12 is disposed within the volute 13 and connected to the output shaft of the brushless DC motor 11, while the volute 13 is fitted onto the output shaft of the brushless DC motor 11. Through this cooperation between the impeller 12 and the volute 13, the device guides the flow and pressurizes the liquid, enabling it to complete the pumping operation, improving its pumping efficiency and enhancing its liquid transport capabilities.

[0037] Furthermore, each blade of the impeller 12 is provided with a first mounting groove, and a rubber blade 15 is installed in the first mounting groove. By setting the rubber blade 15, the noise generated by the liquid flow when the impeller 12 rotates can be absorbed, so that the device can reduce the noise generated by the liquid impact and improve the noise reduction performance of the device.

[0038] like Figure 3 , Figure 4As shown, a first noise reduction cylinder 14 is provided around the brushless DC motor 11. The first noise reduction cylinder 14 includes a first cylinder body and a sealing baffle. The sealing baffle includes a first sealing plate and a second sealing plate, which are respectively installed at both ends of the first cylinder body. A first silencing groove and six sets of second mounting grooves for installing and fixing components are provided on the inner wall of the first cylinder body. The first sealing plate includes a first honeycomb plate 16, a first dustproof plate 17 and an annular retaining plate 18. Six sets of mounting plates 19 are installed on the annular retaining plate 18. The six sets of mounting plates 19 are installed in the second mounting grooves. The first honeycomb plate 16 and the first dustproof plate 17 are both installed on the annular retaining plate. Inside the first dustproof plate 17, a second silencing groove is provided; the second sealing plate includes a second honeycomb plate 22 and a second dustproof plate 23. The second dustproof plate 23 is installed at one end of the first cylinder. A third mounting groove is provided on the second dustproof plate 23. The second honeycomb plate 22 is installed in the third mounting groove. A third silencing groove is provided on the second dustproof plate 23. Through this structural arrangement of the first noise reduction cylinder 14, the device can block and absorb the noise generated by the motor operation from multiple levels, so that the device can further reduce noise, improve the noise reduction effect of the device, and enhance the device's ability in noise control.

[0039] Multiple sets of fixing components are installed between the first noise reduction cylinder 14 and the brushless DC motor 11. There are six sets of fixing components, each including a fixing frame 28 and a first rubber pad 29. The fixing frame 28 is installed in the second mounting slot. One side of the first rubber pad 29 is connected to the fixing frame 28, and the other end is connected to the brushless DC motor 11. Rubber strips 31 are installed at both ends of the fixing frame 28, and a fourth noise reduction groove is opened on each fixing frame 28. By setting the fixing components, the brushless DC motor 11 can be fixed. At the same time, the buffering and noise reduction characteristics of the rubber material are used to reduce the noise transmitted by the motor vibration, so that the device can further reduce noise while operating stably, thereby improving the stability and noise reduction capability of the device.

[0040] The other end of the first noise reduction cylinder 14 is equipped with a second noise reduction cylinder. The second noise reduction cylinder includes a second cylinder body 26 and two sets of side plates 27. One set of side plates 27 has through holes and is installed on the second dustproof plate 23. The second cylinder body 26 is installed between the two sets of side plates 27. The second cylinder body 26 and the two sets of side plates 27 are each provided with a fourth sound-absorbing groove. The device can absorb and block the noise generated by the operation of the water pump again by setting the second noise reduction cylinder, so that the device can control the noise in all directions, improve the overall noise reduction level of the device, and enhance the device's noise management capabilities.

[0041] like Figure 1 , Figure 2As shown, a ventilation component is installed on the first noise reduction cylinder 14, which includes a fan 32 and a temperature sensor 33. An air inlet and an air outlet are provided on the first cylinder body. Both the air inlet and outlet are connected to filter elements 34 via air supply pipes. The fan 32 is connected to the filter element 34 at the air outlet. The temperature sensor 33 is installed on the brushless DC motor 11, and a control module 21 is installed on the fan 32. Through the ventilation component, the temperature of the brushless DC motor 11 can be monitored, and the fan 32 can be automatically controlled to operate according to the temperature, achieving automatic cooling of the motor. This prevents the motor from overheating and causing performance degradation or malfunction, improving the heat dissipation performance and operational stability of the device. The control module 21 can be a WX3500H control module, and the temperature sensor 33 can be a type K thermocouple.

[0042] The first noise reduction cylinder 14 is equipped with four sets of semicircular rings 24 for mounting the device. The inner ring of the semicircular rings 24 is equipped with multiple sets of second rubber pads 25. The semicircular rings 24 and the second rubber pads 25 facilitate the installation and fixation of the device. At the same time, the second rubber pads 25 can also play a certain role in buffering and vibration reduction, so that the noise generated by vibration can be reduced during the installation and operation of the device, thereby improving the installation convenience and stability of the device.

[0043] The specific usage and function of this embodiment are as follows:

[0044] First, connect the device to an external power source, and then send a signal to the control module 21 through the external controller to control the brushless DC motor 11.

[0045] When the brushless DC motor 11 is running, it drives the water pump connected to it with its power output. The impeller 12 rotates at high speed in the volute 13. The blades exert force on the liquid, causing the liquid to flow and be pressurized in the volute 13, thereby realizing liquid transportation. In this process, the rubber blades 15 installed on the impeller 12 blades play an important role in noise reduction. They can absorb the noise generated by the liquid flow and the friction and impact of the blades, reducing the noise level of the water pump during operation.

[0046] Meanwhile, the first noise reduction cylinder 14 surrounding the brushless DC motor 11 completely blocks the noise generated by the motor operation. The first sound-absorbing groove on the inner wall of the first cylinder of the first noise reduction cylinder 14, as well as the sound-absorbing grooves on the first honeycomb plate 16, the first dustproof plate 17 in the first sealing plate, the second honeycomb plate 22 and the second dustproof plate 23 in the second sealing plate, and the fourth sound-absorbing groove on the fixing frame 28 in the fixing assembly, all absorb and block the noise. The first rubber pad 29 in the fixing assembly and the rubber strips 31 at both ends of the fixing frame 28 not only fix the brushless DC motor 11, but also reduce the noise transmitted by the motor vibration by utilizing the buffering characteristics of the rubber material, further improving the noise reduction effect.

[0047] In addition, the second noise reduction cylinder located at the other end of the first noise reduction cylinder 14 performs secondary noise reduction treatment on the noise generated when the water pump is working. The fourth sound-absorbing grooves on the second cylinder 26 and the two sets of side plates 27 absorb and block the remaining noise, ensuring that the noise is controlled in all aspects.

[0048] During motor operation, temperature sensor 33 monitors the temperature of brushless DC motor 11. If the temperature rises abnormally, temperature sensor 33 will feed back the temperature information to control module 21. Control module 21 will then respond by controlling fan 32 to start or increase its speed. Fan 32 introduces external air into the air inlet of the first cylinder through filter element 34 connected to the air outlet. The clean air filtered by filter element 34 flows inside the cylinder, carrying away the heat generated by the motor, thus achieving automatic cooling of the motor and ensuring that the motor always operates stably within a suitable temperature range, extending the motor's service life.

[0049] The four sets of semicircular rings 24 and the second rubber pads 25 of the inner rings installed on the first noise reduction cylinder 14 provide convenience for the installation of the water pump. During installation, the semicircular rings 24 can be used to fix the water pump in the required position. The second rubber pads 25 not only play a buffering and shock-absorbing role, reducing the damage that may be caused to the water pump during installation, but also further reduce the noise generated by the vibration transmitted to the installation surface when the water pump is running, thus improving the stability and installation convenience of the entire device.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A brushless DC water pump with noise reduction effect, comprising a brushless DC motor (11) and a water pump, characterized in that: The water pump is connected to the output shaft of the brushless DC motor (11); The brushless DC motor (11) is provided with a first noise reduction cylinder (14) for noise reduction and dust isolation on its periphery. Multiple sets of fixing components for fixing the brushless DC motor (11) and reducing the noise of the brushless DC motor (11) are installed between the first noise reduction cylinder (14) and the brushless DC motor (11). The other end of the first noise reduction cylinder (14) is equipped with a second noise reduction cylinder for noise reduction of the water pump, and the first noise reduction cylinder (14) is equipped with a ventilation component for cooling the brushless DC motor (11).

2. The brushless DC water pump with noise reduction effect according to claim 1, characterized in that: The water pump includes an impeller (12) and a volute (13). The volute (13) is sleeved on the output shaft of the brushless DC motor (11). The impeller (12) is disposed inside the volute (13) and connected to the output of the brushless DC motor (11). Each blade of the impeller (12) is provided with a first mounting groove, and each first mounting groove is provided with a rubber blade (15) for noise reduction.

3. A brushless DC water pump with noise reduction effect according to claim 1, characterized in that: The first noise reduction cylinder (14) includes a first cylinder body and a sealing baffle. The sealing baffle includes a first sealing plate and a second sealing plate, which are respectively installed at both ends of the first cylinder body. The inner wall of the first cylinder is provided with a first silencing groove and six sets of second mounting grooves for installing the fixing components.

4. A brushless DC water pump with noise reduction effect according to claim 3, characterized in that: The first sealing plate includes a first honeycomb plate (16), a first dustproof plate (17) and an annular retaining plate (18). Six sets of mounting plates (19) are installed on the annular retaining plate (18), and the six sets of mounting plates (19) are installed in the second mounting groove. The first honeycomb panel (16) and the first dustproof panel (17) are both installed inside the annular card plate (18), and the first dustproof panel (17) is provided with a second sound-absorbing groove; The second sealing plate includes a second honeycomb plate (22) and a second dustproof plate (23). The second dustproof plate (23) is installed at one end of the first cylinder. A third mounting groove is provided on the second dustproof plate (23). The second honeycomb plate (22) is installed in the third mounting groove. A third sound-absorbing groove is provided on the second dustproof plate (23).

5. A brushless DC water pump with noise reduction effect according to claim 4, characterized in that: The second noise reduction cylinder includes a second cylinder body (26) and two sets of side plates (27), one set of side plates (27) having through holes and being installed on the second dustproof plate (23), and the second cylinder body (26) being installed between the two sets of side plates (27); The second cylinder (26) and the two sets of side plates (27) are each provided with a fourth sound-absorbing groove.

6. A brushless DC water pump with noise reduction effect according to claim 5, characterized in that: The fixing components consist of six sets, each including a fixing frame (28) and a first rubber pad (29). The fixing frame (28) is installed in the second mounting slot, and one side of the first rubber pad (29) is connected to the fixing frame (28), while the other end is connected to the brushless DC motor (11). Rubber strips (31) are installed at both ends of the fixing frame (28), and a fourth noise reduction groove is provided on the fixing frame (28).

7. A brushless DC water pump with noise reduction effect according to claim 6, characterized in that: The ventilation component includes a fan (32) and a temperature sensor (33). An air inlet and an air outlet are provided on the first cylinder. Both the air inlet and the air outlet are equipped with filter elements (34) through air delivery pipes. The fan (32) is connected to the filter element (34) at the air outlet, and the temperature sensor (33) is installed on the brushless DC motor (11); The fan (32) is equipped with a control module (21).

8. A brushless DC water pump with noise reduction effect according to claim 1, characterized in that: The first noise reduction cylinder (14) is equipped with four sets of semi-circular rings (24) for mounting devices, and the inner ring of the semi-circular rings (24) is equipped with multiple sets of second rubber pads (25).

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