CN218293893U - Pipeline formula silence intelligence booster water pump - Google Patents

Abstract

The utility model discloses a pipeline type mute intelligent booster water pump, which is provided with a water inlet and a water outlet pipe at two ends of a pipeline type sleeve; the impeller assembly is arranged in the pipeline type sleeve and faces the water inlet; the water pump motor is arranged in the pipeline type sleeve and used for driving the impeller assembly to rotate; the inverter assembly is arranged in the pipeline type sleeve and is used for providing a variable frequency power supply for the water pump motor; and the one-way valve assembly is arranged in the water outlet pipe and is provided with a water pump automatic stop control device used for stopping the inverter assembly from supplying power to the water pump motor when the one-way valve assembly performs a closing operation.

Description

Pipeline formula silence intelligence booster water pump

Technical Field

The utility model relates to a booster pump, especially a pipeline formula silence intelligence booster pump that family's pipeline pressure boost was used.

Background

With the development of modern society, more and more families use domestic variable frequency booster water pumps.

The existing household variable-frequency booster water pump has the following characteristics: a mechanical seal closed by friction is needed to isolate the motor from the pump to prevent water from entering the motor. The motor needs to be supported by a ball bearing, rolling friction noise is generated during rotation, and meanwhile, the balls are abraded. The blades rotating at a high speed throw water out, impact is generated on the wall surface of the pump body, meanwhile, noise is generated along with cavitation generation, breakage and the like, and if the noise is not shielded, the use experience of a user is influenced. The power density and the efficiency of the traditional induction motor are relatively low, the volume of the traditional induction motor is larger than that of a permanent magnet motor under the same power, and a large amount of steel, copper, aluminum and other materials are consumed. The frequency converter, the induction motor, the pump, the cooling fan and the like which are designed in a split mode lead to overlarge volume of the whole machine. Most of traditional electric pumps with self-suction functions are vortex pumps, and fit gaps between straight tooth copper impellers of the vortex pumps and a pump body are very small, so that when the pressure of a water pump is high, serious friction noise between blades and the pump body can be generated.

The existing household variable-frequency booster water pump has the following technical problems: 1. a mechanical sealing element which is sealed by friction is needed to isolate water and vapor between the motor and the pump, so that the friction loss of the mechanical sealing exists, and the efficiency of the whole machine is reduced; the structure is complex, the mechanical sealing element belongs to a consumable part, is easy to lose efficacy and leak, and needs to be replaced regularly; 2. most of the traditional electric pumps with self-suction functions are vortex pumps, and serious noise is generated when the water pressure is high. 3. The induction machine has low power density and efficiency, large volume and material waste. 4. The traditional multistage centrifugal pump does not have the noise caused by high-speed impact of water flow on a wall surface, cavitation generation, breakage and the like when the electric pump works. 5. The ball bearing supporting the motor rotating shaft is poor in dustproof and waterproof performance, and rolling friction and abrasion of the balls are caused by high-speed rotation, so that bearing noise is caused. 6. Traditional area is from inhaling this bulky of centrifugation, and the water inlet is at pump body front end, and the delivery port is in pump body upper end for the installation of pipeline is complicated, and the pipeline need carry out many times multidirectional switching and can accomplish the installation, and installation area is big, and the material is extravagant.

Disclosure of Invention

The utility model aims at providing a pipeline formula silence intelligence booster water pump for solve the above-mentioned technical problem that prior art exists.

The utility model discloses a pipeline formula silence intelligence booster water pump includes:

a water inlet and a water outlet pipe which are arranged at two ends of the pipeline type sleeve;

the impeller assembly is arranged in the pipeline type sleeve 1 and faces the water inlet;

the water pump motor is arranged in the pipeline type sleeve and used for driving the impeller assembly to rotate;

the inverter assembly is arranged in the pipeline type sleeve and is used for providing a variable frequency power supply for the water pump motor;

and the one-way valve assembly is arranged in the water outlet pipe and is provided with a water pump automatic stop control device used for stopping the inverter assembly from supplying power to the water pump motor when the one-way valve assembly performs a closing operation.

Preferably, the one-way valve assembly comprises: the one-way valve seat is arranged on the water outlet pipe; a plunger seal mounted on said check valve seat; a check valve plunger for moving and contacting the plunger seal when the check valve assembly performs a closing operation and for moving away from the plunger seal when the check valve assembly performs an opening operation.

Preferably, the water pump automatic stop control device includes: a magnetic induction switch mounted on the outside of the water pipe; and the magnet is arranged on the plunger of the one-way valve and is used for being close to the magnetic induction switch when the one-way valve component executes closing operation and cutting off a power supply loop of the magnetic induction switch through magnetic force.

Preferably, the pipeline type mute intelligent booster water pump of the utility model also comprises a shielding sleeve which is arranged between the rotor cavity and the stator cavity of the water pump motor and is used for preventing the water from entering the stator cavity; the shielding sleeve is made of a non-magnetic heat dissipation material.

Preferably, a rotor cavity of the water pump motor is communicated with a water outlet of the impeller assembly, and is provided with a ceramic rotating shaft serving as a rotating shaft of the water pump motor, a ceramic bearing supporting the ceramic rotating shaft and a rotor assembly sleeved on the ceramic rotating shaft.

Preferably, the ceramic bearing includes a front end ceramic bearing for supporting a front end of the ceramic rotary shaft facing the impeller assembly, and a rear end ceramic bearing for supporting a rear end of the ceramic rotary shaft.

Preferably, the shielding sleeve is composed of a stator shielding sleeve and a rotor shielding sleeve for forming a stator cavity, and a gap for forming a water flow channel of the rotor cavity is formed between the stator shielding sleeve and the rotor shielding sleeve and is used for taking away heat generated by the stator to realize heat dissipation of the stator.

Preferably, a front end bearing support for supporting the front end ceramic bearing is installed between the front end ceramic bearing and the front cover of the water pump motor, and the front end bearing support is provided with a water inlet hole and a water outlet hole of the water flow channel of the rotor cavity.

Preferably, a gap for allowing a trace of water flow in the rotor cavity to flow is formed between the front end ceramic bearing and the ceramic rotating shaft and between the rear end ceramic bearing and the ceramic rotating shaft, so that a layer of water film is formed between the front end ceramic bearing and the ceramic rotating shaft and between the rear end ceramic bearing and the ceramic rotating shaft when the rotating shaft rotates at a high speed, and bearing noise is reduced.

Preferably, the impeller rotating shaft is a stainless steel rotating shaft sleeved on the ceramic rotating shaft through a hot pressing process.

Preferably, the impeller assembly at least comprises two impeller units, each impeller unit comprises an impeller and a flow guide disc, the impeller is movably sleeved on the impeller rotating shaft, and the flow guide disc is fixedly connected with the pipeline type sleeve.

The utility model has the main technical effects that 1) when the one-way valve is closed, the plunger drives the magnet to reset, and the magnet can be sensed by the magnetic induction element outside the water outlet pipe to reset, so as to realize the automatic stop of the control electric pump; 2) The rotor and the stator of the motor are both shielded and isolated by adopting non-magnetic stainless steel materials, and a magnetic field generated by the stator can penetrate through the stainless steel materials and act on the permanent magnet rotor, so that the purpose of isolating water vapor without mechanical sealant is achieved.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is an external view of the pipe type mute intelligent booster water pump of the present invention;

FIG. 2 is a front view of the outlet side of the ducted, quiet, intelligent booster pump of FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is an enlarged view of section C of FIG. 3;

FIG. 6 is an enlarged view of section E of FIG. 4;

fig. 7 is an exploded view of an impeller unit of the impeller assembly of the present invention.

Description of the reference numerals: the pump comprises a pipeline type sleeve 100, a pump front cover 101, a screw 102, a lead pipe 103, a pump rear cover 104, a water inlet 105, a cylindrical pin 106, a T-shaped pin 107, a sunk screw 108 and a screw 109; the motor comprises a motor bracket 200, a motor front cover 201, a motor shell 202, a stator cavity 203, a stator core 2031 and a motor rear cover 204; ceramic bearing 205, ceramic rotating shaft 206, rotor cavity 207, rotor magnetic shoe 2071, rotor iron core 2072, rotor ball end cover 2073, thrust bearing 208, shield sleeve assembly 209, stator shield sleeve 2091 and rotor shield sleeve 2092; the flow guide plate comprises a flow guide disc 300, an impeller 301, a stainless steel shaft 302, a hub 303 and a stainless steel cover plate 304; the water outlet pipe 400, a one-way valve assembly 401, a magnetic induction element 402, a pressure sensor 403, a deflation nail 404, a magnetic block 405, a return spring 406, a one-way valve bracket 407, a one-way valve seat 408, a plunger sealing element 409 and a one-way valve sealing ring 410; an inverter 500.

Detailed Description

The utility model relates to a pipe type mute intelligent booster water pump as shown in figure 1, which comprises a water inlet 105 and a water outlet pipe 400 which are arranged at two ends of a pipe type sleeve 100 and are shown in figure 2; an impeller assembly disposed within the ducted sleeve 100 and facing the water inlet 105; a water pump motor disposed in the pipe sleeve 100 for driving the impeller assembly to rotate; an inverter assembly 500 disposed in the conduit sleeve 100 for providing a variable frequency power supply to the water pump motor; and a check valve assembly provided in the outlet pipe 400, the check valve assembly having a water pump automatic stop control means for stopping the inverter assembly 500 from supplying power to the water pump motor when the check valve assembly performs a closing operation, thereby achieving a function of automatically stopping the water pump when the water pressure of the outlet pipe is higher than a predetermined value.

The utility model discloses can also set up the hydraulic pressure sensor 403 that detects out water pipe 400. The inverter assembly operates according to the water pressure detected by the pressure sensor 403, and when the water pressure value detected by the pressure sensor 403 is greater than a threshold value, the power supply to the water pump motor is stopped, so that the water pump is automatically stopped. The utility model discloses an use pressure sensor 403 water pump automatic stop control device to realize water pump automatic stop function jointly to the reliability of automatic stop has been increased.

Referring to fig. 5, the utility model discloses booster pump's check valve subassembly includes: a one-way valve seat 408 mounted on the outlet pipe 400; a plunger seal 409 mounted on a check valve seat 408; a check valve plunger 401 for moving and contacting the plunger seal 409 when the check valve assembly performs a closing operation and for moving away from the plunger seal 409 when the check valve assembly performs an opening operation.

If the water pressure of the water outlet is larger than the pressure of the water pumped into the impeller assembly, the water backflow phenomenon can occur, and when the water consumption in the water outlet direction of the booster pump is smaller than a certain value (for example, no water is used by a user), the water backflow phenomenon can occur. The check valve assembly prevents such water backflow, that is, if the water pressure at the outlet reaches a predetermined value, the check valve plunger 401 will contact the plunger sealing member 409 under the action of the return spring 406 to close the water flow passage. One of the characteristics of the utility model is that a linked water pump automatic stop control device is arranged in the check valve component, when the check valve plunger 401 leaves the plunger sealing piece 409, the water pump automatic stop control device makes the water pump motor work; when check valve plunger 401 contacts plunger seal 409, the water pump auto-stop control stops the water pump motor.

Referring to fig. 5, the water pump automatic stop control apparatus includes: a magnetic induction switch 402 installed on the outside of the water pipe 400; a magnet 405 mounted on the check valve plunger 401 for closing the magnetic induction switch 402 when the check valve assembly performs a closing operation, and for magnetically cutting off a power supply circuit of the magnetic induction switch 402.

The performance of the water pump depends on the heat dissipation capability of the water pump motor to some extent, the water pump motor can generate a large amount of heat energy during operation, and if the heat energy can not be dissipated in time, the water pump can be damaged, such as the motor is burnt out, and high-power elements of the inverter are burnt out. The utility model discloses a set up the pump water passageway from impeller subassembly to outlet pipe 400 between the motor housing 202 of lid 204 and installation water pump motor and the pipeline formula sleeve 100 behind the motor of installation inverter assembly, utilize the rivers that flow to cool down inverter assembly and water pump motor.

The utility model discloses a water pump motor's rotor chamber 207 with impeller component's delivery port intercommunication to there are ceramic pivot 206, the support that is used as motor shaft ceramic bearing 205 and the suit of ceramic pivot the epaxial rotor subassembly of pottery. A rotor core sleeved on the motor rotating shaft and a magnetic shoe fixed on the rotor core are arranged in the rotor cavity 207, see fig. 6. The stator cavity 203 houses a stator core and a stator coil for generating a magnetic field for driving the rotor to rotate.

The utility model discloses install the housing 209 that is used for preventing stator chamber 203 from intaking between water pump motor's rotor chamber 207 and stator chamber 203. The shield 209 is made by the heat dissipation material of non-magnetic conduction such as stainless steel material, makes the magnetic field that the stator produced pass the shield and act on the permanent magnet rotor on the one hand, and on the other hand, takes the heat that the stator produced outside the pump body through rivers through metal shield 209, realizes the radiating effect to the stator.

Referring to fig. 6, the utility model discloses a housing assembly 209 comprises stator housing 2091 and the rotor housing 2092 that are used for forming the stator chamber, has the clearance that is used for forming rotor chamber rivers passageway between stator housing 2091 and rotor housing 2092, can take away the heat that the stator produced, realizes dispelling the heat to the stator.

The utility model discloses a ceramic bearing 205 is including being used for supporting the front end ceramic bearing towards the ceramic pivot front end of impeller subassembly to and be used for supporting the rear end ceramic bearing of ceramic pivot rear end. Gaps for allowing micro water flow in the rotor cavity to flow are formed between the front-end ceramic bearing and the ceramic rotating shaft 206 and between the rear-end ceramic bearing and the ceramic rotating shaft, and a layer of water film is formed between the front-end ceramic bearing and the ceramic rotating shaft and between the rear-end ceramic bearing and the ceramic rotating shaft when the rotating shaft rotates at a high speed, so that bearing noise is reduced. In addition, ceramic pivot 206 and ceramic bearing 205 have under high temperature environment non-deformable, and the friction loss is little, not only can increase the water pump life-span, but also can raise the efficiency.

The utility model discloses still install the front end bearing retainer who is used for supporting front end ceramic bearing between front end ceramic bearing and water pump motor protecgulum 201. The front end bearing support is provided with a water inlet hole and a water outlet hole of a water flow channel of the rotor cavity, so that water pumped by the impeller assembly can enter and exit the rotor cavity, and trace circulating water flow is formed in the rotor cavity.

The impeller shaft 302 is a stainless steel shaft sleeved on the ceramic shaft 206 by a hot pressing process. The impeller assembly comprises at least two impeller units.

Referring to fig. 7, each impeller unit is composed of an impeller 301 and a deflector 300, the impeller 301 is movably sleeved on an impeller rotating shaft 302, and the deflector 300 is fixedly connected with the pipeline sleeve 100. The utility model discloses an impeller pivot 302 is hexagonal stainless steel axle, and the diameter of the mesopore of guiding disk 300 is greater than the external diameter of impeller pivot 302, therefore does not rotate along with the rotation of impeller pivot. The impeller 301 of the present invention is a member having an internal spiral water flow passage, and has a shape adapted to a hexagonal stainless steel shaft, so that it can rotate along with the rotation of the impeller shaft. Simultaneously, have the clearance between impeller 301 and the impeller pivot 302, make it can axial displacement, the utility model discloses an axial force that this kind of design can reduce impeller 301 and applys to the impeller pivot to can also avoid impeller 301 to fix the epaxial tolerance cooperation of impeller pivot. Referring to fig. 7, the rear end of the impeller 301 and the guide vanes of the flow guiding disc 300 together form a guide vane cavity for rectifying the water flows with different directions formed after the impeller rotates, so that the water flows output by each impeller unit tend to be consistent.

The utility model discloses an inverter assembly 104 for controlling motor work makes electric motor rotor rotate to high-speed rotation from low-speed rotation gradually, realizes the soft start of ceramic pivot 20 to avoid the start-up fracture that ceramic pivot 20 shock resistance leads to weak. The utility model discloses an inverter assembly 104 is the power supply unit who converts the direct current to the changeable alternating current of frequency, in order to avoid the cracked technical problem of start-up that the weak lead to of ceramic pivot 20 shock resistance, the utility model discloses a through the gradual change from low to high with the frequency of dc-to-ac converter, make ceramic pivot 20 transition to high-speed rotation from the low-speed rotation.

Fig. 4 shows the water flow direction of the mute pressurizing water pump of the present invention, and the water flow from the water pump water inlet 105 reaches the water outlet pipe 400 through the heat dissipation channel between the stainless steel sleeve 100 and the motor housing after the impeller assembly is pressurized.

To sum up, the utility model discloses a pipeline formula silence intelligence booster water pump has following technical characterstic: 1. the inverter is powered by low direct current voltage, so that the whole motor immersed in the pipeline is subjected to electric leakage and personal safety is not harmed. 2. And the design that the stainless steel of the motor stator and the rotor shields water vapor is adopted, so that a mechanical sealing element is omitted, and the maintenance cost is reduced. 3. The motor adopts the design of ceramic axle cooperation ceramic slide bearing, and when the pivot was rotatory at a high speed, the surperficial one deck water film that can form between ceramic axle and the ceramic slide bearing through the grinding realizes reducing the bearing noise. 4. The inverter controls the rotor to accelerate after soft start, so that the problem of breakage of the ceramic shaft during start due to weak impact resistance is solved, and stable high load and high rotating speed of the ceramic shaft are realized. 5. A rotating shaft of the pump adopts a hot-pressing nesting process of a ceramic shaft and a stainless steel shaft, the ceramic round shaft is used as a motor rotor shaft, and the stainless steel shaft adopts a hexagonal shaft to be matched with an impeller shaft hole, so that the problem that the ceramic shaft cannot be matched with the impeller shaft hole by machining is solved. 6. The hexagonal stainless steel shaft and the impeller shaft hole are in clearance fit, the impeller freely moves in the axial direction, the axial movement range of the impeller is limited by the ceramic gasket on the flow guide disc and the stainless steel cover plate 304, and the rotor cannot be subjected to axial force generated by pressure difference between the front and the back of the impeller when rotating and only provides radial torque for the impeller. 7. The motor stator and the inverter are completely sealed in the stainless steel shielding sleeve, so that the motor can be integrally installed inside the pipeline, water flows through the outside of the motor complete machine, the heat dissipation of the motor and the controller is integrally realized, the power density of the motor is improved, and the size of the motor is reduced. 8. Adopt single-phase valve integrated magnet, install in the outlet pipe, through plunger drive magnet when the check valve closes and reset, just can sense the magnet with magnetic induction component and reset outside the outlet pipe, realize the auto-stop of control charge pump. 9. This patent is with permanent-magnet machine, pump, sensor, dc-to-ac converter high integration in a "pipeline", and is small, and the inlet outlet can change pipeline direct mount along supplying water on same water flat line, need not to change over the pipe fitting, and area is little, realizes intelligent constant voltage control simultaneously.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.

Claims (10)

1. A ducted silent intelligent booster water pump, comprising:

a water inlet and a water outlet pipe which are arranged at two ends of the pipeline type sleeve;

the impeller assembly is arranged in the pipeline type sleeve and faces the water inlet;

the water pump motor is arranged in the pipeline type sleeve and used for driving the impeller assembly to rotate;

it is characterized by also comprising:

the inverter assembly is arranged in the pipeline type sleeve and is used for providing a variable frequency power supply for the water pump motor;

and the one-way valve assembly is arranged in the water outlet pipe and is provided with a water pump automatic stop control device used for stopping the inverter assembly from supplying power to the water pump motor when the one-way valve assembly performs a closing operation.

2. The ducted silent intelligent booster water pump of claim 1, wherein said one-way valve assembly comprises:

the one-way valve seat is arranged on the water outlet pipe;

a plunger seal mounted on said check valve seat;

a check valve plunger for moving and contacting the plunger seal when the check valve assembly performs a closing operation and for moving away from the plunger seal when the check valve assembly performs an opening operation.

3. The ducted silent intelligent booster water pump according to claim 2, wherein said water pump automatic stop control means comprises:

a magnetic induction switch mounted on the outside of the water pipe;

and the magnet is arranged on the plunger of the one-way valve and is used for being close to the magnetic induction switch when the one-way valve component executes closing operation and cutting off a power supply loop of the magnetic induction switch through magnetic force.

4. The ducted mute intelligent booster water pump according to claim 2, further comprising a shield sleeve installed between the rotor cavity and the stator cavity of the water pump motor for preventing the stator cavity from water inflow; the shielding sleeve is made of a non-magnetic heat dissipation material.

5. The pipe-type mute intelligent booster water pump as claimed in claim 4, wherein a rotor cavity of the water pump motor is communicated with the water outlet of the impeller assembly and is provided with a ceramic rotating shaft serving as a rotating shaft of the water pump motor, a ceramic bearing supporting the ceramic rotating shaft and a rotor assembly sleeved on the ceramic rotating shaft.

6. The pipe-type mute intelligent booster water pump as claimed in claim 5, wherein the shielding sleeve is composed of a stator shielding sleeve and a rotor shielding sleeve for forming a stator cavity, and a gap for forming a water flow channel of the rotor cavity is arranged between the stator shielding sleeve and the rotor shielding sleeve for taking away heat generated by the stator to realize heat dissipation of the stator.

7. The intelligent booster pump of claim 6, wherein the ceramic bearings comprise a front ceramic bearing and a rear ceramic bearing, a front bearing bracket for supporting the front ceramic bearing is installed between the front ceramic bearing and a front cover of the pump motor, and the front bearing bracket is provided with a water inlet hole and a water outlet hole of the water channel of the rotor cavity.

8. The intelligent booster pump of claim 7, wherein gaps are formed between the front ceramic bearing and the ceramic rotary shaft for allowing a small amount of water to flow through the rotor cavity, and the gaps are used for forming a water film between the front ceramic bearing and the ceramic rotary shaft and between the rear ceramic bearing and the ceramic rotary shaft when the rotary shaft rotates at a high speed, so as to reduce bearing noise.

9. The pipe-type silent intelligent booster water pump as claimed in claim 5, wherein the impeller rotating shaft is a stainless steel rotating shaft sleeved on the ceramic rotating shaft by a hot pressing process.

10. The intelligent booster pump of claim 3, wherein the impeller assembly comprises at least two impeller units, each impeller unit comprises an impeller and a deflector, the impeller is movably sleeved on the impeller rotating shaft, and the deflector is fixedly connected to the pipeline sleeve.

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