Water pump and closestool

Abstract

The utility model relates to the technical field of bathroom accessories and discloses a water pump and a closestool, and the water pump comprises a pump body, a power conversion assembly, a motor, fan blades and a control box. The pump body is provided with a liquid flow channel. The power conversion assembly is arranged in the liquid flow channel. One end of a rotating shaft of the motor is connected with the power conversion assembly, the motor is used for driving the power conversion assembly to work, and the other end of the rotating shaft of the motor is connected with the fan blades outside a shell of the motor. The control box comprises a shell and a control panel, the shell is arranged on one side of a shell of the motor, the shell is provided with a containing cavity, the control panel is arranged in the containing cavity and electrically connected with the motor, the shell protrudes out of the shell of the motor in the direction from the power conversion assembly to the fan blades, and at least part of the control panel is aligned with the fan blades in the direction from the shell to the motor. In this way, the risk that the control panel fails due to overtemperature can be reduced.

Description

Technical Field

[0001] The present application relates to the field of sanitary ware, and in particular to a water pump and a toilet. Background Art

[0002] The motor and control board are important components of toilet water pumps, which respectively drive the water pump and control the speed of the water pump. In order to meet the requirements of modern water pump integration and miniaturization, the current water pump control board is set on one side of the motor, and there is a small distance between the motor and the control board.

[0003] The current water pump dissipates heat naturally through the outer casing, and the heat dissipation efficiency is low. When the water pump is working, the heat generated by the control board itself and the heat transferred to the control board by the motor may cause the temperature of the control board to exceed its inherent temperature range and cause the control board to fail. Utility Model Content

[0004] In view of the problems existing in the background technology, the purpose of the present application is to provide a water pump and a toilet, which overcome the above problems or at least partially solve the above problems.

[0005] According to the first aspect of the present application, a water pump is provided, comprising: a pump body, a power conversion assembly, a motor, a fan blade and a control box. The pump body is provided with a liquid flow channel. The power conversion assembly is arranged in the liquid flow channel. One end of the rotating shaft of the motor is connected to the power conversion assembly, and the motor is used to drive the power conversion assembly to work, and the other end of the rotating shaft of the motor is connected to the fan blade outside the housing of the motor. The control box comprises a housing and a control board, the housing is arranged on one side of the housing of the motor, the housing is provided with a accommodating cavity, the control board is arranged in the accommodating cavity, the control board is electrically connected to the motor, and the housing protrudes from the housing of the motor along the direction from the power conversion assembly to the fan blade, and the control board is at least partially aligned with the fan blade along the direction from the housing to the motor.

[0006] In one or more of the above optional embodiments, a heat-generating power device is provided in the area where the control board is aligned with the fan blades along the direction from the housing to the motor.

[0007] In one or more of the above optional embodiments, it also includes an air duct assembly, which is connected to the shell of the motor and the casing, and the air duct assembly is provided with a first air duct and a second air duct, one end of the first air duct is connected to the accommodating cavity, and the other end of the first air duct is connected to the second air duct, the fan blade is arranged in the second air duct, and one end of the second air duct is connected to the outside.

[0008] In one or more of the above optional embodiments, the power conversion component is an impeller.

[0009] In one or more of the above optional embodiments, a heating component is further included, wherein the heating component is electrically connected to the control board, and the heating component is used to heat the liquid flowing through the liquid flow channel.

[0010] In one or more of the above optional embodiments, the liquid flow channel includes a liquid inlet flow channel, a heating flow channel, a working chamber and a liquid outlet flow channel, one end of the liquid inlet flow channel is connected to the outside world, the other end of the liquid inlet flow channel is connected to one end of the heating flow channel, the other end of the heating flow channel is connected to one end of the working chamber, the other end of the working chamber is connected to one end of the liquid outlet flow channel, the other end of the liquid outlet flow channel is connected to the outside world, the power conversion component is arranged in the working chamber, and the heating component is arranged in the heating flow channel.

[0011] In one or more of the above optional embodiments, the heating component includes a heating element and an electrical connection part, one end of the heating element is connected to the electrical connection part, the electrical connection part is electrically connected to the control board, the heating element is extended along the heating channel from one end away from the working chamber to one end of the heating channel close to the working chamber, and there is a gap between the heating element and the inner wall of the heating channel.

[0012] In one or more of the above optional embodiments, the liquid outlet channel is provided with a first temperature detection element, the first temperature detection element is electrically connected to the control board, and the first temperature detection element is used to detect the temperature of the liquid in the liquid outlet channel.

[0013] In one or more of the above optional embodiments, the liquid inlet channel is provided with a second temperature detection element, the second temperature detection element is electrically connected to the control board, and the second temperature detection element is used to detect the temperature of the liquid in the liquid inlet channel; and / or

[0014] The heating flow channel is provided with a third temperature detection element, the third temperature detection element is electrically connected to the control board, and the third temperature detection element is used to detect the working temperature of the heating component.

[0015] According to a second aspect of the present application, a toilet is provided, comprising the water pump as described above.

[0016] The beneficial effect of the embodiment of the present application is as follows: the water pump provided by the embodiment of the present application includes a pump body, a power conversion assembly, a motor, a fan blade and a control box. The pump body is provided with a liquid flow channel. The power conversion assembly is arranged in the liquid flow channel. One end of the rotating shaft of the motor is connected to the power conversion assembly, and the motor is used to drive the power conversion assembly to work, and the other end of the rotating shaft of the motor is connected to the fan blade outside the housing of the motor. The control box includes a shell and a control board, the shell is arranged on one side of the housing of the motor, the shell is provided with a receiving cavity, the control board is arranged in the receiving cavity, the control board is electrically connected to the motor, along the direction of the power conversion assembly to the fan blade, the shell protrudes from the housing of the motor, and along the direction of the shell to the motor, the control board is at least partially aligned with the fan blade. When the water pump is working, the rotating shaft of the motor rotates to drive the power conversion assembly to work, and the fan blades rotate with the rotating shaft of the motor to force the surrounding airflow to flow, thereby accelerating the removal of the heat generated by the motor and the control board, and reducing the risk of failure of the control board due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 A three-dimensional diagram of a water pump provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 An exploded view of the water pump is shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the water pump shown is when viewed from the direction of the fan blade toward the power conversion assembly;

[0021] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0022] Figure 5 A schematic diagram of another water pump provided in an embodiment of the present application;

[0023] Figure 6 for Figure 5 Exploded view of the water pump shown;

[0024] Figure 7 for Figure 5 Cross-section at the middle BB;

[0025] Figure 8for Figure 5 A broken away cross-sectional view of the water pump is shown. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0028] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] See also Figure 1-4 The water pump 1000 includes a pump body 1, a power conversion assembly 2, a motor 3, a fan blade 4 and a control box 5. The pump body 1 is provided with a liquid flow channel 1a, and the power conversion assembly 2 is arranged in the liquid flow channel 1a. One end of the rotating shaft 31 of the motor 3 is connected to the power conversion assembly 2, and the motor 3 is used to drive the power conversion assembly 2 to work. The other end of the rotating shaft 31 of the motor 3 is connected to the fan blade 4 outside the housing 32 of the motor 3. The control box 5 includes a shell 51 and a control board 52. The shell 51 is provided with a receiving chamber 51a. The control board 52 is arranged in the receiving chamber 51a, and the control board 52 is electrically connected to the motor 3.

[0031] In some embodiments, the housing 51 is disposed on one side of the housing 32 of the motor 3, and along the direction X from the power conversion assembly 2 to the fan blades 4, the housing 51 protrudes from the housing 32 of the motor 3, and along the direction Y from the housing 51 to the motor 2, the control board 52 is at least partially aligned with the fan blades 4. When the water pump 1000 is working, the shaft 31 of the motor 3 rotates to drive the power conversion assembly 2 to work, and the fan blades 4 rotate with the shaft of the motor 3 to force the air around the fan blades 4 to flow, thereby accelerating the removal of heat generated by the motor 3 and the control board 52, reducing the risk of failure of the control board 52 due to overheating.

[0032] In some embodiments, the water pump 1000 is a centrifugal water pump 1000, the power conversion component 2 is an impeller, and the rotating shaft 31 of the motor 3 rotates to drive the impeller to rotate so as to drive the liquid flow in the liquid flow channel 1a to flow.

[0033] It is understandable that in some other embodiments, the water pump 1000 can also be a screw pump, a plunger pump, etc., and the power conversion component 2 corresponds to a component for connecting with the motor 3 to convert the mechanical energy output by the rotating shaft 31 of the motor 3 into fluid energy. For example, when the water pump 1000 is a plunger pump, the power conversion component 2 includes a plunger and an eccentric wheel, one end of the plunger is connected to the rotating shaft 31 of the motor 3 through the eccentric wheel, and the eccentric wheel converts the rotational motion of the rotating shaft 31 of the motor 3 into a linear reciprocating motion of the plunger in the liquid flow channel 1a, thereby realizing the function of pumping liquid. The specific structure of the plunger pump is a prior art, which can be understood by those skilled in the art, so it will not be described in detail.

[0034] In some embodiments, the water pump 1000 also includes a reduction gear set (not shown), which connects the rotating shaft 31 of the motor 3 with the power conversion assembly 2, and the reduction gear set is used to convert the high-speed rotation of the rotating shaft 31 of the motor 3 into a lower speed and a larger torque to be transmitted to the power conversion assembly 2.

[0035] In some embodiments, the fan blades 4 are fan blades 4 of an axial flow fan, and the airflow direction generated by the fan blades 4 is parallel to the axial direction of the rotating shaft 31 of the motor 3 .

[0036] It can be understood that in some other embodiments, the fan blades 4 can be selected according to actual needs. For example, the fan blades 4 can also be set as the fan blades 4 of a centrifugal fan, so that the airflow direction generated by the fan blades 4 is perpendicular to the axial direction of the rotating shaft 31 of the motor 3; or the fan blades 4 can be set as the fan blades 4 of a mixed flow fan, so that the airflow generated by the fan blades 4 has both axial components and radial components.

[0037] The control board 52 of the water pump 1000 generally uses switching devices suitable for high-power circuit control, such as IGBT (insulated gate bipolar transistor), IPM (intelligent power module), etc. This type of heat-generating power device has the characteristics of high power density during operation, and naturally will produce large power loss and thus generate large heat.

[0038] See also Figure 4 In some embodiments, along the direction Y from the housing 51 to the motor 3, a heat generating power device 521 is disposed in the area where the control board 52 is aligned with the fan blades 4, and the heat generating power device 521 includes but is not limited to an IGBT. By disposing the heat generating power device 521 in the area where the control board 52 is aligned with the fan blades 4, the heat generated by the heat generating power device 521 can be more quickly carried away by the airflow generated by the rotation of the fan blades 4, thereby further reducing the risk of the control board 52 overheating and causing the control board 52 to fail.

[0039] Please refer to Figure 5-7 In some embodiments, the water pump 1000 further includes an air duct assembly 6, which is connected to the housing 32 and the shell 51 of the motor 3. The air duct assembly 6 is provided with a first air duct 62a and a second air duct 61a. One end of the first air duct 62a is connected to the accommodating chamber 51a, and the other end of the first air duct 62a is connected to the second air duct 61a. The fan blade 4 is provided in the second air duct 61a, and one end of the second air duct 61a is connected to the outside. When the water pump 1000 is working, the fan blade 4 forces the air to flow, and the air with a higher temperature in the accommodating chamber 51a can be replaced with the air with a lower temperature in the outside through the first air duct 62a and the second air duct 61a, thereby improving the heat dissipation effect of the control board 52.

[0040] In some embodiments, the air duct assembly 6 includes an enclosure 61 and a connecting portion 62. The enclosure 61 surrounds the fan blade 4 and is arranged at one end of the housing 32 of the motor 3 toward the fan blade 4. The inner side wall of the enclosure 61 encloses to form a second air duct 61a. The end of the enclosure 61 away from the housing 32 of the motor 3 is enclosed to form an opening 61b, and the opening 61b connects the second air duct 61a with the outside. The first air duct 62a is arranged at the connecting portion 62, and the first air duct 62a extends from the first end of the connecting portion 62 to the second end of the connecting portion 62. The first end of the connecting portion 62 is connected to the housing 51, and the housing 51 is provided with a first connecting port 51b. The first air duct 62a is connected to the accommodating cavity 51a through the first connecting port 51b. The second end of the connecting portion 62 is connected to the side wall of the enclosure 61, and the first air duct 62a passes through the side wall of the enclosure 61 and communicates with the second air duct 61a.

[0041] In some embodiments, the first connection port 51b is arranged on the side of the outer shell 51 facing the fan blade 4, and the first connection port 51b is at least partially aligned with the heat-generating power device 521 of the control board 52, the first air duct 62a is extended along the outer shell 51 toward the direction Y of the motor 2, and the second air duct 61a is extended along the power conversion component 2 toward the fan blade 4.

[0042] See also Figure 8 In some embodiments, the water pump 1000 further includes a heating component 7, which is electrically connected to the control board 52 and is used to heat the liquid flowing through the liquid flow channel 1a. By providing the heating component 7, the water pump 1000 can output liquid with a preset temperature.

[0043] In some embodiments, the liquid flow channel 1a includes a liquid inlet flow channel 1b, a heating flow channel 1c, a working chamber 1d and a liquid outlet flow channel 1e, one end of the liquid inlet flow channel 1b is connected to the outside, the other end of the liquid inlet flow channel 1b is connected to one end of the heating flow channel 1c, the other end of the heating flow channel 1c is connected to one end of the working chamber 1d, the other end of the working chamber 1d is connected to one end of the liquid outlet flow channel 1e, the other end of the liquid outlet flow channel 1e is connected to the outside, the power conversion component 2 is arranged in the working chamber 1d, and the heating component 7 is arranged in the heating flow channel 1c.

[0044] In some embodiments, the heating assembly 7 includes a heating element 71 and an electrical connection portion 72, one end of the heating element 71 is connected to the electrical connection portion 72, the electrical connection portion 72 is electrically connected to the control board 52, the heating element 71 is extended along the end of the heating channel 1c away from the working chamber 1d toward the end of the heating channel 1c close to the working chamber 1d, and there is a gap between the heating element 71 and the inner wall of the heating channel 1c. When the water pump 1000 is working, water flows into the heating channel 1c through the liquid inlet channel 1b, flows along the end of the heating channel 1c away from the working chamber 1d toward the end of the heating channel 1c close to the working chamber 1d, and flows through the gap between the heating element 71 and the inner wall of the heating channel 1c, the water flow fully immerses the heating element 71, and takes away the heat of the heating element 71 to achieve temperature rise.

[0045] In some embodiments, the heating element 7 is a ceramic electric heating tube.

[0046] In some embodiments, the liquid outlet channel 1e is provided with a first temperature detection element (not shown), which is electrically connected to the control board 52. The first temperature detection element is used to detect the temperature of the liquid in the liquid outlet channel 1e and transmit the temperature signal to the control board 52.

[0047] In some embodiments, the liquid inlet channel 1b is provided with a second temperature detection element (not shown), which is electrically connected to the control board 52 and is used to detect the temperature of the liquid in the liquid inlet channel 1b and transmit the temperature signal to the control board 52.

[0048] In some embodiments, the heating flow channel 1c is provided with a third temperature detection element (not shown), which is electrically connected to the control board 52 and is used to detect the working temperature of the heating component 7. The third temperature detection element can provide the control board 52 with the temperature data of the heating component 7, and then the temperature of the heating component 7 can be monitored and controlled by the control board 52, so that the heating component 7 works within a preset temperature range.

[0049] Based on the same inventive concept, an embodiment of the present application also provides a toilet, comprising a water pump 1000 in any of the above embodiments.

[0050] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A water pump, characterized in that: include: A pump body, provided with a liquid flow channel; A power conversion assembly, disposed in the liquid flow channel; A motor, one end of the rotating shaft of the motor is connected to the power conversion assembly, and the motor is used to drive the power conversion assembly to work; The other end of the rotating shaft of the motor is connected to the fan blade outside the housing of the motor; A control box includes a shell and a control board, wherein the shell is arranged on one side of the motor housing, the shell is provided with a receiving cavity, the control board is arranged in the receiving cavity, the control board is electrically connected to the motor, and the shell protrudes from the motor housing along the direction from the power conversion component to the fan blade, and the control board is at least partially aligned with the fan blade along the direction from the shell to the motor.

2. The water pump according to claim 1, characterized in that: Along the direction from the housing to the motor, a heat generating power device is arranged in the area where the control board is aligned with the fan blades.

3. The water pump according to claim 1, characterized in that: It also includes an air duct assembly, which is connected to the shell of the motor and the casing, and the air duct assembly is provided with a first air duct and a second air duct, one end of the first air duct is connected to the accommodating cavity, the other end of the first air duct is connected to the second air duct, the fan blade is arranged in the second air duct, and one end of the second air duct is connected to the outside.

4. The water pump according to claim 1, characterized in that: The power conversion component is an impeller.

5. The water pump according to any one of claims 1 to 4, characterized in that: It also includes a heating component, which is electrically connected to the control board and is used to heat the liquid flowing through the liquid flow channel.

6. The water pump according to claim 5, characterized in that: The liquid flow channel includes a liquid inlet flow channel, a heating flow channel, a working chamber and a liquid outlet flow channel. One end of the liquid inlet flow channel is connected to the outside world, the other end of the liquid inlet flow channel is connected to one end of the heating flow channel, the other end of the heating flow channel is connected to one end of the working chamber, the other end of the working chamber is connected to one end of the liquid outlet flow channel, and the other end of the liquid outlet flow channel is connected to the outside world. The power conversion component is arranged in the working chamber, and the heating component is arranged in the heating flow channel.

7. The water pump according to claim 5, characterized in that The heating component includes a heating element and an electrical connection part, one end of the heating element is connected to the electrical connection part, and the electrical connection part is electrically connected to the control board. The heating element is extended along the heating channel from one end away from the working chamber to one end of the heating channel close to the working chamber, and there is a gap between the heating element and the inner wall of the heating channel.

8. The water pump according to claim 6, characterized in that: The liquid outlet channel is provided with a first temperature detection element, the first temperature detection element is electrically connected to the control board, and the first temperature detection element is used to detect the temperature of the liquid in the liquid outlet channel.

9. The water pump according to claim 8, characterized in that The liquid inlet channel is provided with a second temperature detection element, the second temperature detection element is electrically connected to the control board, and the second temperature detection element is used to detect the temperature of the liquid in the liquid inlet channel; and / or The heating flow channel is provided with a third temperature detection element, the third temperature detection element is electrically connected to the control board, and the third temperature detection element is used to detect the working temperature of the heating component.

10. A toilet, characterized in that: Comprising a water pump as described in any one of claims 1-9.

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