# US 10,502,234 B2 · Smart control water pump

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- Number: US 10,502,234 B2
- Document ID: US10502234B2
- Status: Granted
- Kind: B2
- Application number: 15/670,805
- Filed: 2017-08-07
- Published: 2018-09-20
- Granted: 2019-12-10
- Earliest claimed: 2017-03-15
- Assignees: Forcome (Shanghai) Co., Ltd.
- Applicants: Forcome (Shanghai) Co., Ltd
- Inventors: Xianfei Zhu; Gang Wang
- Web page: https://patentgrep.com/patent/US10502234B2

## CPC

- F04D 29/588: {cooling or heating the machine (F04D29/5886, F04D29/5893 take precedence)}
- F04D 13/0686: {Mechanical details of the pump control unit (pump control F04D15/00)}
- F04D 13/086: {the pump and drive motor are both submerged}
- F04D 15/0218: {the condition being a liquid level or a lack of liquid supply}
- F04D 29/426: {especially adapted for liquid pumps}
- F04D 29/5806: {Cooling the drive system}
- F04B 17/03: driven by electric motors
- F04B 49/06: Control using electricity (regulating by means of floats actuating electric switches F04B49/04)
- F04B 2205/11: Outlet temperature
- F04B 2207/03: External temperature
- F04D 13/06: the pump being electrically driven
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F)

## Abstract

The utility model discloses a smart control water pump applicable to ponds and swimming pools for water drainage includes a chassis, an outer housing, an inner housing, a motor front end cap, a motor housing body, a motor rear end cap and an motor insulating cover, wherein the outer housing, the inner housing and the motor housing body are disposed in turn from the outside to the inside; a flow channel is formed between the outer housing and the inner housing; the chassis, together with the motor front end cap and the bottom of the inner housing, forms an impeller cavity; an impeller is disposed in the impeller cavity; the motor rear end cap, together with the motor housing body and the motor front end cap, forms a motor cavity; a motor component which is in transmission with the impeller is disposed in the motor cavity; and the smart control water pump also includes a smart control component, and includes a controlled in the motor insulating cover, and a temperature sensor and a liquid level sensor which communicate with the controller and are disposed at the flow channel. Compared with the prior art, the utility model has the advantages of preventing overturning and toppling and avoiding frozen burning.

## Claims

### Claim 1

A smart control water pump, applicable to ponds and swimming pools for water drainage, comprising:
a chassis (14),
an outer housing (21),
an inner housing (24),
a motor front end cap (8),
a motor housing body,
a motor rear end cap (2), and
a motor insulating cover (30),
wherein the outer housing (21), the inner housing (24) and the motor housing body are disposed in turn from an outside of the smart control water pump to an inside of the smart control water pump;
a flow channel is formed between the outer housing (21) and the inner housing (24);
the chassis (14), together with the motor front end cap (8) and a bottom of the inner housing (24), forms an impeller cavity;
an impeller (10) is disposed in the impeller cavity;
the motor rear end cap (2), together with the motor housing body and the motor front end cap (8), forms a motor cavity;
a motor component which is in transmission with the impeller (10) is disposed in the motor cavity;
the smart control water pump also comprises a smart control component, and
the smart control component comprises a controller disposed in the motor insulating cover (30), a temperature sensor and a liquid level sensor (33) which communicate with the controller and are disposed at the flow channel.

### Claim 2 (depends on 1)

The smart control water pump according to claim 1, wherein the motor component comprises a motor rotating shaft, a rotor (4) which rotates along with the motor rotating shaft, and a stator (3) fixed on a wall in the motor housing body;
an upper end of the motor rotating shaft is fixed with an inner side of the motor rear end cap (2), and
a lower end of the motor rotating shaft passes through the motor front end cap (8), extends into the impeller cavity and is connected with the impeller (10).

### Claim 3 (depends on 2)

The smart control water pump according to claim 2, wherein two framework oil seals (6) are disposed in turn at positions of the motor front end cap (8) penetrated by the motor rotating shaft.

### Claim 4 (depends on 1)

The smart control water pump according to claim 1, wherein the outer housing (21) is a boss-like structure, including an upper housing portion and a housing base, and
a semi-round handle is disposed at an outer edge of the housing base.

### Claim 5 (depends on 1)

The smart control water pump according to claim 1, wherein the inner housing (24), together with the motor insulating cover (30) and the motor housing body, forms a cooling oil cavity, and
the cooling oil cavity is injected with cooling oil.

### Claim 6 (depends on 5)

The smart control water pump according to claim 5, wherein the motor front end cap (8) is formed with an oil filler hole at a top of the motor front end cap (8), and
the oil filler hole is sealed with an oil plug (23).

### Claim 7 (depends on 1)

The smart control water pump according to claim 1, wherein a gasket (15) and an O-shaped ring (16) are disposed at a joint between the chassis (14) and the bottom of the inner housing (24).

### Claim 8 (depends on 4)

The smart control water pump according to claim 4, wherein a water outlet which communicates with the flow channel is formed on a lateral wall of the upper housing portion, and
the water outlet is equipped with an output connection (22).

### Claim 9 (depends on 4)

The smart control water pump according to claim 4, wherein the temperature sensor and the liquid level sensor (33) are both fixedly disposed at the flow channel through sensor fixtures (32);
the temperature sensor is positioned in the corresponding one of the sensor fixtures (32);
the liquid level sensor (33) is provided with three contacts which are heightened in turn; and
the contacts are disposed at the inlet of the flow channel at a bottom of the chassis (14).

### Claim 10 (depends on 4)

The smart control water pump according to claim 4, wherein the diameter of the housing base is 250 mm.