Brushless water pump with water storage cavity

Abstract

The utility model relates to the technical field of brushless water pumps, in particular to a brushless water pump with a water storage cavity, which comprises a pump shell, a rear cover mounted at the rear end of the pump shell, a front cover mounted at the front end of the pump shell and a motor assembly arranged in the pump shell, the motor assembly comprises a stator assembly and a rotor assembly which are mounted in the pump shell, and an impeller shell is fixedly arranged in the pump shell; the impeller shell is provided with an impeller cavity, the rotor assembly is fixedly installed in the impeller cavity, the stator assembly is fixedly installed on one side of the impeller shell, a water storage cavity supporting piece used for storing water is fixedly arranged at the end, away from the rotor assembly, of the impeller shell, the interior of the water storage cavity supporting piece is hollow, and the water storage cavity supporting piece is communicated with the impeller cavity. The water outlet communicates with the impeller shell, the water inlet is formed in the bottom of the water storage cavity supporting piece, the water outlet and the water inlet communicate with a heat dissipation water pipe outside the pump shell, and a power line used for transmitting power is arranged on the rear cover.

Description

Technical Field

[0001] The present application relates to the technical field of brushless water pumps, and in particular to a brushless water pump with a water storage chamber. Background Art

[0002] A brushless water pump is a device that uses a brushless motor driven by direct current (4.5V to 24V). The motor's rotation drives the impeller, increasing liquid pressure and thus transporting the liquid. This type of pump leverages the advantages of brushless motors, such as high efficiency, low power consumption, longer life than brushed motors, and low noise, making it particularly suitable for applications requiring liquid transport. The operating principle of a brushless DC water pump is based on its unique structural design. When the motor starts, a position sensor detects the rotor position and transmits this information to the motor controller. Based on this position information, the controller energizes the stator coil windings, generating a magnetic field that drives the rotor. When the rotor reaches a certain position, the position sensor detects the position again and notifies the controller for the next energization, achieving continuous rotation. This type of water pump eliminates mechanical brushes and instead employs a square-wave self-controlled permanent magnet synchronous motor. Hall effect sensors replace the carbon brush commutator, and neodymium iron boron is used as the permanent magnet material for the rotor. This offers significant performance advantages over traditional brushed DC motors, making it an ideal energy-saving water pump.

[0003] In addition to pumping water, the water pump can also dissipate heat for equipment that needs to dissipate heat in a short period of time. By connecting the inlet and outlet of the water pump with water pipes, the heat of some equipment can be removed through water circulation.

[0004] Generally, water from outside must be input into the water inlet of the water pump so that the water pump can pump water. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a brushless water pump with a water storage chamber, which is used to solve the problem that the water pump cannot circulate water when there is no water outside.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions: a brushless water pump with a water storage chamber, comprising a pump casing, a rear cover installed at the rear end of the pump casing, a front cover installed at the front end of the pump casing, and a motor assembly arranged in the pump casing, the motor assembly comprising a stator assembly and a rotor assembly installed inside the pump casing, an impeller casing is fixedly arranged in the pump casing, the impeller casing is provided with an impeller chamber, the rotor assembly is fixedly installed in the impeller chamber, the stator assembly is fixedly installed on one side of the impeller casing, a water storage chamber support frame for storing water is fixedly arranged on the end of the impeller casing away from the rotor assembly, the water storage chamber support frame is hollow inside and connected to the impeller chamber, a water outlet and a water inlet are fixedly arranged on the pump body, the water outlet is connected to the impeller casing, the water inlet is arranged at the bottom of the water storage chamber support frame, the water outlet and the water inlet are connected to a heat dissipation water pipe outside the pump casing, and a power cord for transmitting power is provided on the rear cover.

[0007] By adopting the above technical solution, when a device that needs to dissipate heat in a short time is dissipated, after the power cord is connected, since water is injected into the water storage chamber support frame from the beginning, the water in the water storage chamber support frame is moved by the rotor assembly and flows from the water outlet to the heat dissipation water pipe. The heat dissipation water pipe will take away part of the heat of the device that needs to dissipate heat, thereby achieving the purpose of heat dissipation in a short time. At the same time, the water storage chamber support frame in this application can be customized according to different requirements.

[0008] Furthermore, a second water storage shell extends from one end of the front cover close to the pump shell, and the second water storage shell is connected to the water inlet.

[0009] By adopting the above technical solution, the water that has completed the heat exchange will be set to enter the second water storage shell to avoid contact with the water storage chamber support frame.

[0010] Furthermore, positioning holes are provided around the front cover, threaded holes are provided on the water storage chamber support frame, bolts are provided in the positioning holes, and the front cover is installed in the water storage chamber support frame through the bolts.

[0011] By adopting the above technical solution, the pump is connected by means of bolts, which improves the stability of the pump. At the same time, when installation and maintenance are required, the bolts can be disassembled for maintenance.

[0012] Furthermore, a rubber layer is fixedly provided around the second water storage shell.

[0013] By adopting the above technical solution, the provision of the rubber layer is used to improve the integrity of the second water storage shell and the pump shell.

[0014] Furthermore, a placement groove is provided on the water storage shell, and a sealing component is provided in the placement groove.

[0015] Furthermore, the sealing assembly includes a sealing ring that is clamped in the placement groove.

[0016] By adopting the above technical solution, the provision of the sealing assembly ensures that the water in the second water storage shell will not leak out.

[0017] Furthermore, a plurality of sealing grooves are provided, and each of the sealing grooves is provided with a sealing ring.

[0018] By adopting the above technical solution, the sealing performance of the pump is further guaranteed.

[0019] Furthermore, the sealing ring is made of silicone.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. By installing a water reservoir support frame at the end of the impeller housing away from the rotor assembly, and making its interior hollow and connected to the impeller cavity, this design significantly enhances the pump's self-priming ability. During initial startup or low liquid level conditions, water in the reservoir can be used as starting water, quickly entering the impeller cavity and driving the impeller rotation, effectively shortening the time it takes for the pump to reach stable operating conditions and improving its response speed and operating efficiency.

[0022] 2. The presence of the water storage chamber prevents the pump from running dry or idling during startup, significantly reducing noise and vibration caused by dry friction or air compression. Prolonged dry or idling not only causes motor overheating and damage, but also increases wear on mechanical components and shortens the pump's service life. Therefore, this design is crucial for extending the pump's service life and reducing maintenance costs.

[0023] 3. The interconnected design of the water storage chamber support frame and the impeller chamber ensures smoother and more stable water flow within the pump body. This helps reduce water impact and eddy currents, improving the pump's head and flow performance. Furthermore, the stable water flow helps reduce energy consumption during pump operation, achieving energy conservation and emission reduction.

[0024] 4. This brushless water pump is suitable for a variety of complex working conditions, especially in situations where the water source is unstable or the liquid level fluctuates significantly. The water storage chamber design allows the pump to maintain a certain operating time even in the event of a temporary water supply interruption, enhancing the pump's adaptability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 2 is a schematic diagram of the overall structure of the embodiment;

[0026] Figure 2 It is a cross-sectional view of the interior of the pump casing of the embodiment.

[0027] Figure numerals: 1. Pump casing; 11. Front cover; 111. Second water storage casing; 112. Sealing ring; 12. Rear cover; 13. Power cord; 2. Rotor assembly; 21. Water storage chamber support frame; 211. Water storage chamber; 22. Stator assembly; 23. Impeller casing; 24. Impeller chamber; 3. Water outlet; 31. Water inlet; 4. Heat dissipation water pipe. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the accompanying drawings.

[0029] Example, see Figure 1 、 Figure 2 A brushless water pump with a water storage chamber includes a pump housing 1, a rear cover 12 installed at the rear end of the pump housing 1, a front cover 11 installed at the front end of the pump housing 1, and a motor assembly arranged in the pump housing 1. The motor assembly includes a stator assembly 22 and a rotor assembly 2 installed in the pump housing 1. An impeller housing 23 is fixedly installed in the pump housing 1. The impeller housing 23 defines an impeller cavity 24. The rotor assembly 2 is fixedly installed in the impeller cavity 24. The stator assembly 22 is fixedly installed on one side of the impeller housing 23. A water storage chamber support frame 21 for storing water is fixedly provided on one end of the impeller housing 23 away from the rotor assembly 2. The interior of the water storage chamber support frame 21 is hollow and connected to the impeller chamber 24. A water outlet 3 and a water inlet 31 are fixedly provided on the pump body. The water outlet 3 is connected to the impeller housing 23, and the water inlet 31 is set at the bottom of the water storage chamber support frame 21. The water outlet 3 and the water inlet 31 are connected to a heat dissipation water pipe 4 outside the pump housing 1, and a power cord 13 for transmitting power is provided on the rear cover 12.

[0030] When a device that needs to dissipate heat in a short time is dissipated, after the power cord is connected, since water is injected into the water storage chamber support frame 21 from the beginning, the water in the water storage chamber support frame 21 is moved by the rotor assembly 2 and flows from the water outlet 3 to the heat dissipation water pipe 4. The heat dissipation water pipe will take away part of the heat of the device that needs to be dissipated, thereby achieving the purpose of heat dissipation in a short time. At the same time, in this application.

[0031] In this embodiment, a second water storage shell 111 extends from one end of the front cover 11 close to the pump housing 1 , and the second water storage shell 111 is connected to the water inlet 31 .

[0032] When the heat exchange is completed, the water will be set to enter the second water storage shell 111 to avoid contact with the water storage chamber support frame 21.

[0033] In this embodiment, positioning holes are opened around the front cover 11, and threaded holes are opened on the support frame 21 of the water storage chamber 211. Bolts are set in the positioning holes, and the front cover 11 is installed in the support frame 21 of the water storage chamber 211 through the bolts.

[0034] The pump is connected by bolts, which improves the stability of the pump. At the same time, the bolts can be disassembled when installation and maintenance are required.

[0035] In this embodiment, a rubber layer is fixedly provided around the second water storage shell 111 .

[0036] The provision of the rubber layer is used to improve the integrity of the second water storage shell 111 and the pump shell 1 .

[0037] In this embodiment, a placement groove is provided on the water storage shell 111, and a sealing assembly is provided in the placement groove. The sealing assembly includes a sealing ring 112 that is snapped into the placement groove. The provision of the sealing assembly ensures that the water in the second water storage shell 111 does not leak out.

[0038] In this embodiment, a plurality of sealing grooves are provided, and each of the sealing grooves has a sealing ring 112. This further ensures the sealing performance of the pump. The sealing ring 112 is made of silicone.

[0039] Specific implementation process: During the preparation stage, it is necessary to ensure that the water storage chamber support frame 21 has been filled with water, connect the heat dissipation water pipe to the equipment that needs heat dissipation, and turn on the power cord. After starting the water pump, the rotor assembly 2 drives the impeller to rotate, sucking in the water in the water storage chamber 211 and accelerating it through the impeller chamber 24, and then flowing into the heat dissipation water pipe from the water outlet 3 for heat exchange. The water that has completed the heat exchange flows back to the water storage chamber support frame 21 through the water inlet 31. If a second water storage shell 111 is designed, it will first enter the second water storage shell 111 to avoid mixing with cold water. During this period, its operating status and heat dissipation effect need to be monitored. When shutting down, turn off the power supply of the water pump first, and then perform maintenance work, including cleaning the filter, checking the seals, etc. This design ensures the sealing and stability of the water pump through bolt connections and sealing components, and the rubber layer design enhances the integration and sealing of the pump shell 1 and the second water storage shell 111.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A brushless water pump with a water storage chamber, characterized in that: The invention comprises a pump housing (1), a rear cover (12) installed at the rear end of the pump housing (1), a front cover (11) installed at the front end of the pump housing (1), and a motor assembly arranged in the pump housing (1), wherein the motor assembly comprises a stator assembly (22) and a rotor assembly (2) installed in the pump housing (1), an impeller housing (23) is fixedly arranged in the pump housing (1), an impeller cavity (24) is opened in the impeller housing (23), the rotor assembly (2) is fixedly installed in the impeller cavity (24), the stator assembly (22) is fixedly installed on one side of the impeller housing (23), and the impeller housing (23) is fixedly arranged on the impeller cavity (24). ) is fixedly provided with a water storage chamber support frame (21) for storing water on one end away from the rotor assembly (2), the interior of the water storage chamber support frame (21) is hollow and connected to the impeller chamber (24), a water outlet (3) and a water inlet (31) are fixedly provided on the water pump, the water outlet (3) is connected to the impeller shell (23), the water inlet (31) is provided at the bottom of the water storage chamber support frame (21), the water outlet (3) and the water inlet (31) are connected to a heat dissipation water pipe (4) outside the pump shell (1), and a power line (13) for transmitting power is provided on the rear cover (12).

2. A brushless water pump with a water storage chamber according to claim 1, characterized in that: A second water storage shell (111) extends from one end of the front cover (11) close to the pump housing (1), and the second water storage shell (111) is connected to the water inlet (31).

3. A brushless water pump with a water storage chamber according to claim 1, characterized in that: Positioning holes are provided around the front cover (11), threaded holes are provided on the water storage chamber support frame (21), bolts are provided in the positioning holes, and the front cover (11) is mounted on the water storage chamber support frame (21) via the bolts.

4. A brushless water pump with a water storage chamber according to claim 2, characterized in that: A rubber layer is fixedly provided around the second water storage shell (111).

5. A brushless water pump with a water storage chamber according to claim 4, characterized in that: A placement groove is provided on the water storage shell (111), and a sealing component is provided in the placement groove.

6. A brushless water pump with a water storage chamber according to claim 5, characterized in that: The sealing assembly includes a sealing ring (112) clamped in the placement groove.

7. A brushless water pump with a water storage chamber according to claim 6, characterized in that: There are a plurality of placement grooves, and each placement groove has a sealing ring (112).

8. A brushless water pump with a water storage chamber according to claim 7, characterized in that: The sealing ring (112) is made of silicone.

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