阅读说明：本技术 一种洗衣机水泵及洗衣机 (Washing machine water pump and washing machine ) 是由 赵志强 许升 杨旭光 于 2019-04-17 设计创作，主要内容包括：本发明公开了一种洗衣机水泵及洗衣机。本发明的洗衣机水泵包括控制部、电机部和泵部,控制部和泵部分别固定在电机部的两端,所述控制部内具有控制腔室,控制腔室内固定设置控制板,所述控制部与电机部可拆卸式连接,将控制板封在控制腔室内。本发明的洗衣机水泵采用直流无刷电机,具有独立的控制部,控制部、电机部和泵部集成为一个整体,因此水泵作为一个可单独控制的整体可以安装在不同型号的洗衣机上,兼容性好,且整体体积小,应用范围广,噪声小,效率高。(The invention discloses a washing machine water pump and a washing machine. The invention relates to a washing machine water pump, which comprises a control part, a motor part and a pump part, wherein the control part and the pump part are respectively fixed at two ends of the motor part, a control cavity is arranged in the control part, a control panel is fixedly arranged in the control cavity, the control part is detachably connected with the motor part, and the control panel is sealed in the control cavity. The washing machine water pump adopts the direct-current brushless motor and is provided with the independent control part, and the control part, the motor part and the pump part are integrated into a whole, so that the water pump can be installed on washing machines of different models as a single-controlled whole, and the washing machine water pump has the advantages of good compatibility, small whole volume, wide application range, low noise and high efficiency.)

1. The utility model provides a washing machine water pump, its characterized in that includes control part, motor portion and pump portion, and control part and pump portion fix respectively at the both ends of motor portion, control chamber has in the control part, and the control panel is set up to the control chamber internal fixation, control part and motor portion detachable are connected, seal the control panel in control chamber.

2. The washing machine water pump as claimed in claim 1, wherein the motor part comprises a housing, the control panel is fixed at the rear end of the housing; the control part comprises a control shell, a control chamber with an opening facing one side is formed in the control shell, and the opening is matched with the rear end face of the shell; the control shell is detachably connected with the machine shell.

3. The washing machine water pump according to claim 2, characterized in that a positioning structure is arranged on the rear end face of the machine shell, and/or on the control panel, and/or on the control shell;

preferably, the positioning structure comprises a first convex part which is positioned in the middle of the rear end face of the casing and protrudes towards one side of the control plate in the axial direction; the middle part of the control plate is provided with a through hole matched with the first convex part, and the control plate is sleeved on the first convex part through the through hole;

preferably, the first protrusion is formed by protruding from the center of the rear end surface of the housing toward one side of the control plate, and a cavity for accommodating the end of the motor shaft is formed inside the first protrusion.

4. The washing machine water pump as claimed in claim 3, wherein the inner wall of the control casing is provided with an abutting structure, the abutting structure is located at the middle part of the inner wall of the control casing opposite to the opening, and the inner wall opposite to the control casing is protruded towards one side of the machine shell; after the control shell is connected with the machine shell, the abutting structure abuts against the first convex part.

5. The washing machine water pump according to any one of claims 2-4, characterized in that a second convex part is arranged on the rear end surface of the casing, the second convex part is positioned at the periphery of the first convex part and is concentric with the first convex part; the protruding height of the second convex part is smaller than that of the first convex part;

preferably, after the control plate is sleeved on the first convex part, part of the surface of the control plate is attached to the surface of the second convex part.

6. The washing machine water pump according to any one of claims 2-5, characterized in that a fixing boss is arranged on the rear end face of the casing, a fixing hole is arranged on the fixing boss, a connecting hole for the fixing member to pass through is arranged on the control panel, and after the control panel is positioned, the fixing member passes through the connecting hole and is fixed with the fixing hole;

preferably, the fixing boss is positioned at the periphery of the second convex part; more preferably, the fixing boss is arranged close to the edge of the rear end face of the casing.

7. The washing machine water pump according to any one of claims 2 to 6, characterized in that the control casing is further provided with a limiting structure on the inner peripheral side wall, the edge of the control plate is matched with the limiting structure, and the limiting structure limits the control plate to move in the axial direction;

preferably, the limiting structure is a limiting table and is formed by sinking the inner peripheral side wall of the control shell close to one end of the opening in the direction away from the center, and the edge of the control plate abuts against the surface of the limiting table;

preferably, the inner diameter of the opening of the control housing is larger than the outer diameter of the rear end face of the casing, and the inner circumference of the opening of the control housing covers the outer circumference of the rear end of the casing.

8. A washing machine water pump according to any one of claims 2-7, characterized in that the control casing and the outer peripheral wall of the machine shell are provided with mutually matched connecting structures;

preferably, the connecting structure comprises a clamping block arranged on the periphery of the control shell and a clamping hole arranged on the periphery of the shell, one side of the clamping block is fixed with the peripheral surface of the control shell, the other side of the clamping block horizontally extends towards the direction of the shell, and a protruding structure is arranged at the extending end of the clamping block; after the control shell is connected with the machine shell, the protruding structure is inserted into the clamping hole.

9. The washing machine water pump as claimed in any one of claims 2 to 8, wherein the control housing is provided with an outlet port, a connection terminal is installed in the outlet port, and the control panel is connected to an external power supply through the connection terminal;

preferably, a stator and a rotor are arranged in the casing, and the control board is connected with the stator through an inner lead.

10. A washing machine characterized in that it has a washing machine pump according to any of claims 1-10 connected to the main control unit of the washing machine.

Technical Field

The invention belongs to the field of washing machines, particularly relates to a washing machine water pump and a washing machine, and more particularly relates to a direct-current brushless water pump.

Background

The washing machine is designed as a device for washing laundry by using electricity, and generally, the washing machine includes: a tub for holding washing water; a washing tub rotatably installed inside the tub; a pulsator rotatably installed at the bottom of the washing tub; a motor and a clutch configured to rotate the washing tub and the pulsator. When the pulsator rotates to agitate the laundry and the washing water in the washing tub, thereby removing stains from the laundry. The washing machine further includes a drainage system in which a drainage pump is used to drain the washed water from the washing machine through a drainage pipe.

The drainage system of the washing machine at present mostly adopts an alternating current motor water pump, the working noise generated in the drainage process is larger, the flow is smaller, the efficiency is lower, and the experience comfort level of a user in the washing process is influenced. In order to improve this situation, some washing machines employ a dc brushless water pump, and a driving unit is provided in a main control panel of the washing machine to adjust an operating state of the dc brushless water pump. However, the control and driving of the water pump are integrated with the control panel of the washing machine, and when the water pump is applied to other washing machines, the control panel of the washing machine needs to be replaced together with the control panel of the washing machine, which possibly causes the incompatibility of the control panel and influences the application range of the water pump.

The present invention has been made in view of this situation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a water pump of a washing machine and the washing machine. The washing machine water pump adopts the direct current brushless motor and is provided with the independent control part, so that the water pump is used as a whole which can be independently controlled to be arranged on different washing machines, and the washing machine water pump has the advantages of good compatibility, wide application range, low noise and high efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that:

the invention provides a water pump of a washing machine, which comprises a control part, a motor part and a pump part, wherein the control part and the pump part are respectively fixed at two ends of the motor part, a control cavity is arranged in the control part, a control plate is fixedly arranged in the control cavity, the control part is detachably connected with the motor part, and the control plate is sealed in the control cavity.

In a further scheme, the motor part comprises a shell, and the control panel is fixed at the rear end of the shell; the control part comprises a control shell, a control chamber with an opening facing one side is formed in the control shell, and the opening is matched with the rear end face of the shell; the control shell is detachably connected with the machine shell.

In a further scheme, a positioning structure is arranged on the rear end face of the machine shell, and/or on the control panel, and/or on the control shell;

preferably, the positioning structure comprises a first convex part which is positioned in the middle of the rear end face of the casing and protrudes towards one side of the control plate in the axial direction; the middle part of the control plate is provided with a through hole matched with the first convex part, and the control plate is sleeved on the first convex part through the through hole;

preferably, the first protrusion is formed by protruding from the center of the rear end surface of the housing toward one side of the control plate, and a cavity for accommodating the end of the motor shaft is formed inside the first protrusion.

In a further scheme, a propping structure is arranged on the inner wall of the control shell, the propping structure is positioned in the middle of the inner wall of the control shell opposite to the opening, and the inner wall opposite to the control shell protrudes towards one side of the machine shell; after the control shell is connected with the machine shell, the abutting structure abuts against the first convex part.

In a further scheme, a second convex part is also arranged on the rear end face of the shell, is positioned on the periphery of the first convex part and is concentric with the first convex part; the protruding height of the second convex part is smaller than that of the first convex part;

preferably, after the control plate is sleeved on the first convex part, part of the surface of the control plate is attached to the surface of the second convex part.

In a further scheme, a fixing boss is arranged on the rear end face of the casing, a fixing hole is formed in the fixing boss, a connecting hole for the fixing piece to penetrate through is formed in the control panel, and after the control panel is positioned, the fixing piece penetrates through the connecting hole and is fixed with the fixing hole;

preferably, the fixing boss is positioned at the periphery of the second convex part; more preferably, the fixing boss is arranged close to the edge of the rear end face of the casing.

In a further scheme, a limiting structure is further arranged on the inner peripheral side wall of the control shell, the edge of the control plate is matched with the limiting structure, and the limiting structure limits the control plate to move in the axial direction;

preferably, the limiting structure is a limiting table and is formed by sinking the inner peripheral side wall of the control shell close to one end of the opening in the direction away from the center, and the edge of the control plate abuts against the surface of the limiting table;

preferably, the inner diameter of the opening of the control housing is larger than the outer diameter of the rear end face of the casing, and the inner circumference of the opening of the control housing covers the outer circumference of the rear end of the casing.

In a further scheme, the peripheral walls of the control shell and the casing are provided with mutually matched connecting structures;

preferably, the connecting structure comprises a clamping block arranged on the periphery of the control shell and a clamping hole arranged on the periphery of the shell, one side of the clamping block is fixed with the peripheral surface of the control shell, the other side of the clamping block horizontally extends towards the direction of the shell, and a protruding structure is arranged at the extending end of the clamping block; after the control shell is connected with the machine shell, the protruding structure is inserted into the clamping hole.

In a further scheme, an outgoing line interface is arranged on the control shell, a wiring terminal is installed in the outgoing line interface, and the control panel is connected with an external power supply through the wiring terminal;

preferably, a stator and a rotor are arranged in the casing, and the control board is connected with the stator through an inner lead.

The second purpose of the invention is to provide a washing machine, which is provided with the washing machine water pump according to any one or combination of the above schemes, and the washing machine water pump is connected with a main control unit of the washing machine.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the washing machine water pump adopts the direct-current brushless motor, the motor is provided with the independent control part, and the control part, the motor part and the pump part are integrated into a whole, so that the water pump can be installed on washing machines of different models as a single-controlled whole, and the washing machine water pump has the advantages of good compatibility, small whole volume, wide application range, low noise and high efficiency.

2. The control part of the washing machine water pump is detachably connected with the motor part, the control panel is fixed in the control cavity through various positioning structures, fixing structures and limiting structures, the fixing effect is good, and other fixing media such as glue filling are not needed for fixing, so that the cost can be saved, the assembly and disassembly are convenient, and the control panel is convenient to maintain.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the overall structure of a water pump of a washing machine according to the present invention;

FIG. 2 is a schematic view of the overall structure of the water pump of the washing machine according to another aspect of the present invention;

FIG. 3 is a top view of the washer pump of the present invention;

FIG. 4 is a cross-sectional view of a washer pump of the present invention;

FIG. 5 is an enlarged view of the sealing ring of the water pump shaft of the washing machine according to the present invention;

FIG. 6 is a side view of the washer pump of the present invention;

FIG. 7 is a graph of the relationship between the current and the rotation speed of the water pump of the washing machine according to the present invention;

in the figure: the device comprises a 100 control shell, a 101 control cavity, a 102 control panel, a 104 abutting structure, a 105 limit table, 106 wiring terminals, 107 through holes, 108 connecting holes, 109 fixing pieces, 110 clamping blocks and 111 outgoing line interfaces;

200, 201, a first convex part, 202, a second convex part, 203, 204, a fixing hole, 205, a clamping hole, 206, 207, a rotor, 208, a motor shaft, 209, a front bearing, 210, a rear bearing, 211, a shaft sealing ring, 212, an outer sealing part, 213, an inner sealing part, 214, a first sealing contact part, 215, a second sealing contact part and 216, wherein the concave cavity is formed by the first convex part, the second convex part, the 203, the fixing boss, the fixing hole, the fixing;

300 pump case, 301 fixed knot construct, 302 water inlet, 303 delivery port, 304 impeller, 305 pump case sealing washer.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.