Water pump and personal care equipment

Abstract

The water pump comprises a pump body, a suction and discharge component, a driving component, a signal transmission component and a signal triggering component, and a liquid storage cavity with a liquid inlet and a liquid outlet is formed in the pump body; the suction and discharge component can move relative to the pump body and is used for executing liquid suction operation and liquid discharge operation in a time-sharing mode. The driving component is connected with the suction and drainage component and used for driving the suction and drainage component to execute liquid suction operation and liquid drainage operation, the driving component comprises a driving mechanism and a transmission mechanism, and the driving mechanism is connected with the suction and drainage component through the transmission mechanism so as to drive the suction and drainage component to execute the liquid suction operation and the liquid drainage operation in a time-sharing mode; the signal transmission part is used for outputting signals; the signal triggering part is used for triggering the signal transmission part, so that the signal transmission part outputs a corresponding signal; wherein the signal triggering part and the signal transmission part move relatively, so that the signal triggering part triggers the signal transmission part to output a corresponding sensing signal. The utility model further discloses personal care equipment with the water pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of personal care, in particular to a water pump and a personal care device. BACKGROUND

[0002] A water pump is arranged in a personal care device (such as an oral irrigator, a nasal irrigator, etc.), and the water pump is used to provide power for the flow of liquid in the liquid path of the personal care device, so as to spray the liquid from the cleaning component of the personal care device to realize the cleaning function.

[0003] In the water pump, the rotation speed of the driving mechanism is closely related to the liquid suction operation and / or the liquid pumping operation performed by the water pump, and therefore, how to accurately obtain the rotation speed of the driving mechanism in the water pump is crucial. UTILITY MODEL CONTENT

[0004] The main purpose of the embodiments of the present application is to provide a water pump and a personal care device.

[0005] In a first aspect, the present application provides a water pump applied to a personal care device, comprising:

[0006] a pump body, the pump body forms a liquid storage cavity with a liquid inlet and a liquid outlet;

[0007] a suction and discharge component, the suction and discharge component is movable relative to the pump body, and is used to perform a liquid suction operation and a liquid discharge operation at different times, the liquid suction operation can make the liquid enter the liquid storage cavity through the liquid inlet, and the liquid discharge operation can make at least part of the liquid in the liquid storage cavity discharge from the liquid storage cavity through the liquid outlet;

[0008] a driving component connected to the suction and discharge component, used to drive the suction and discharge component to perform the liquid suction operation and the liquid discharge operation, and the driving component comprises a driving mechanism and a transmission mechanism, the driving mechanism is connected to the suction and discharge component through the transmission mechanism, so as to drive the suction and discharge component to perform the liquid suction operation and the liquid discharge operation at different times;

[0009] a signal transmission component, used to output a signal; and

[0010] a signal triggering component, used to trigger the signal transmission component to output a corresponding signal;

[0011] Among them, one of the signal triggering component and the signal transmission component is arranged in a target structure of the water pump, and during the driving of the driving component to the suction and discharge component, the signal triggering component and the signal transmission component move relatively, so that the signal triggering component triggers the signal transmission component to output a corresponding sensing signal, and the target structure comprises at least one of the pump body, the suction and discharge component, the driving mechanism and the transmission mechanism.

[0012] In this embodiment, the water pump is equipped with a signal transmission component and a signal triggering component. During the operation of the suction and discharge components driven by the drive component, the signal triggering component and the signal transmission component move relative to each other, causing the signal triggering component to trigger the signal transmission component to output a corresponding sensing signal. By using a signal analysis component that is communicatively connected to the signal transmission component to analyze the sensing signal output by the signal transmission component, the position change information of the signal triggering component and / or the signal transmission component relative to the pump body can be obtained. Then, the rotational speed output by the drive component can be analyzed more accurately based on the position change information, which facilitates the speed control of the drive component.

[0013] In some embodiments, the target structure is provided with a limiting part, which is disposed in one of the signal triggering component and the signal transmission component of the target structure, forming a limiting engagement with the limiting part. The limiting part includes, but is not limited to, a limiting protrusion or a limiting groove.

[0014] In this embodiment, the signal triggering component or signal transmission component disposed on the target structure is limited by the limiting part, so that the signal triggering component or signal transmission component can be more firmly fixed to the target structure.

[0015] In some implementations, during the process of the driving component driving the suction and discharge components, any point on the signal triggering component moves relative to the pump body, and the change in the relative position between the signal transmission component and the pump body is less than a preset value.

[0016] In this embodiment, since the signal transmission component needs to output a signal, and during the signal output process, it is usually necessary to use a signal transmission medium such as a wire. In order to simplify the structure of the water pump and improve the stability of the output signal of the signal transmission component, the relative movement of the signal triggering component and the signal transmission component is limited to the signal transmission component being fixed to the pump body. During the process of the driving component driving the suction and discharge components, the signal triggering component moves relative to the signal transmission component to trigger the signal transmission component to output the corresponding sensing signal in a relatively stable manner.

[0017] In some embodiments, the transmission mechanism includes a transmission wheel structure, a drive mechanism meshing with the transmission wheel structure, and driving the suction and discharge components through the transmission wheel structure; wherein, one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the pump body.

[0018] In some embodiments, the transmission mechanism includes a transmission wheel structure, a drive mechanism meshing with the transmission wheel structure, and driving the suction and discharge components through the transmission wheel structure; wherein, the water pump also includes a housing, the housing being fixed to the pump body and forming a receiving cavity, the transmission mechanism being disposed within the receiving cavity, and one of the signal triggering component and the signal transmission component being disposed in the transmission wheel structure, and the other being disposed in the housing.

[0019] In some embodiments, the transmission mechanism includes a transmission wheel structure, a drive mechanism meshing with the transmission wheel structure, and driving the suction and discharge components through the transmission wheel structure; wherein, one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the drive mechanism housing of the drive mechanism.

[0020] In some embodiments, the transmission mechanism includes a transmission wheel structure, a drive mechanism meshing with the transmission wheel structure, and driving the suction and discharge components through the transmission wheel structure; wherein, the transmission mechanism also includes a transmission rod structure, the transmission wheel structure being connected to the transmission rod structure, and the suction and discharge components being connected through the transmission rod structure to drive the suction and discharge components; and one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the transmission rod structure.

[0021] Optionally, the transmission rod structure includes an annular connecting part and a connecting rod part connected to the annular connecting part, the connecting rod part being used to connect the suction and discharge components; one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the annular connecting part.

[0022] In the above embodiments, one of the signal triggering component and the signal transmission component is disposed on the transmission wheel structure, and the other is disposed on a component or structure that is relatively fixed relative to the transmission wheel structure or can be relatively displaced relative to the transmission wheel structure. This enables the signal triggering component and the signal transmission component to move relative to each other during the process of the driving component driving the suction and discharge component to operate, and stably triggers the signal transmission component to output the corresponding sensing signal.

[0023] In some implementations, multiple signal triggering components are arranged in an arc or ring shape on the transmission wheel structure, so that the rotation of the transmission wheel structure causes the signal triggering components to be displaced relative to the signal transmission components.

[0024] Optionally, at least two of the multiple signal triggering components have different magnetic properties or different magnetization intensities.

[0025] Optionally, when the signal triggering component is strip-shaped, the magnetization intensity corresponding to different positions of the signal triggering component is different, or the spacing between different positions of the signal triggering component and the signal transmission component is different.

[0026] In the above embodiments, there may be one, two or more signal triggering components. When there are multiple signal triggering components, they are arranged in an arc or ring shape on the transmission wheel structure, which facilitates the relatively stable and reliable triggering of the signal transmission components during the rotation of the transmission wheel structure.

[0027] Furthermore, when there are multiple signal triggering components, at least two of the signal triggering components have different magnetisms or different magnetization intensities; or, when the signal triggering component is strip-shaped, the magnetization intensities corresponding to different positions of the signal triggering component are different; or, the spacing between different positions of the signal triggering component and the signal transmission component is different. This enables signal triggering components at different positions to trigger the same signal transmission component to output different induction signals, or different positions of the same signal triggering component to trigger the same signal transmission component to output different induction signals.

[0028] In some embodiments, the transmission mechanism includes at least a transmission rod structure, a driving component is connected to the transmission rod structure, and a suction / discharge component is connected through the transmission rod structure; wherein, one of the signal triggering component and the signal transmission component is disposed in the transmission rod structure, and the other is disposed in the pump body.

[0029] In some embodiments, the water pump further includes a housing, which is fixed to the pump body and forms a receiving cavity. A transmission mechanism is disposed within the receiving cavity. The transmission mechanism includes at least a transmission rod structure. A driving component is connected to the transmission rod structure and is connected to the suction and discharge components through the transmission rod structure. In this embodiment, one of the signal triggering component and the signal transmission component is disposed in the transmission rod structure, and the other is disposed in the housing.

[0030] Optionally, there are multiple signal triggering components, wherein the multiple signal triggering components are arranged on the transmission rod structure along the extension direction of the transmission rod structure.

[0031] In the above embodiments, one of the signal triggering component and the signal transmission component is disposed on the transmission rod structure, and the other is disposed on a component or structure that is relatively fixed relative to the transmission rod structure, so that the signal triggering component and the signal transmission component can move relative to each other during the process of the driving component driving the suction and discharge component to move.

[0032] Furthermore, there can be one, two, or more signal triggering components. When there are multiple signal triggering components, they are arranged along the extension direction of the transmission rod structure, which facilitates the relatively stable and reliable triggering of the signal transmission components during the movement of the transmission rod structure.

[0033] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component in the radial direction. The signal triggering component is disposed in the transmission wheel structure, and the signal transmission component is disposed in the drive mechanism housing of the drive mechanism.

[0034] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component in the radial direction. The signal triggering component is disposed on the transmission wheel structure, and the signal transmission component is disposed on the pump body.

[0035] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component in the radial direction. The water pump also includes a housing, which is fixed to the pump body and forms a receiving cavity. The transmission mechanism is disposed within the receiving cavity. The signal triggering component is disposed on the transmission wheel structure, and the signal transmission component is disposed on the housing.

[0036] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component in the radial direction. The signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged in the drive mechanism housing of the drive mechanism and located on the outer periphery of the drive shaft of the drive mechanism.

[0037] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component in the radial direction. The signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component.

[0038] In the above embodiments, the signal triggering component is ring-shaped and has a first magnetic pole and a second magnetic pole arranged radially along the signal triggering component. The signal triggering component is set on a structure or component that can move relative to the pump body during the operation of the water pump, and the signal transmission component is set on a structure or component that is fixed relative to the pump body. This allows the signal triggering component and the signal transmission component to move relative to each other during the operation of the drive component driving the suction and discharge components, and stably triggers the signal transmission component to output the corresponding induction signal.

[0039] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component along the axial direction. The signal triggering component is disposed on the transmission wheel structure, and the signal transmission component is disposed on the pump body. The magnetic field strength of the signal triggering component is different at different positions in the annular circumferential direction, or the thickness of the signal triggering component is different at different positions in the annular circumferential direction, or the distance between the signal triggering component and the signal transmission component is different at different positions in the annular circumferential direction.

[0040] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component along the axial direction. The signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component.

[0041] In some embodiments, the transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge components through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component along the axial direction. The signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged in the drive mechanism housing of the drive mechanism and located on the outer periphery of the drive shaft of the drive mechanism.

[0042] In the above embodiments, the signal triggering component is ring-shaped and has a first magnetic pole and a second magnetic pole arranged along the axial direction of the signal triggering component. The signal triggering component is set on a structure or component that can move relative to the pump body during the operation of the water pump, and the signal transmission component is set on a relatively fixed structure or component. This allows the signal triggering component and the signal transmission component to move relative to each other during the operation of the drive component driving the suction and discharge components, and stably triggers the signal transmission component to output the corresponding induction signal.

[0043] In some embodiments, the signal transmission component includes at least one of a Hall sensor and a magnetic induction switch, and the signal triggering component includes at least one of a magnet and an electromagnet.

[0044] Optionally, the signal transmission component is a linear Hall sensor.

[0045] Secondly, this application provides a personal care device, including: a main unit and a cleaning component connected to the main unit, wherein the main unit is equipped with the aforementioned water pump.

[0046] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A schematic structural block diagram of a water pump provided in an embodiment of this application;

[0049] Figure 2 A three-dimensional structural diagram of a water pump provided in an embodiment of this application;

[0050] Figure 3 This is a cross-sectional structural diagram of a water pump provided in an embodiment of this application;

[0051] Figures 4 to 7 This is a schematic diagram showing the positional relationship between the signal transmission component and the signal triggering component of the water pump in several different embodiments of this application;

[0052] Figure 8 This is a schematic diagram illustrating a scenario in which two signal triggering components with different magnetic properties or different magnetization intensities trigger a signal transmission component in a water pump, as provided in an embodiment of this application.

[0053] Figure 9 This is a schematic diagram illustrating a scenario where two different locations of the same signal triggering component in a water pump are triggered, as provided in an embodiment of this application.

[0054] Figures 10 to 12 This is a schematic diagram showing the positional relationship between the annular signal transmission component and the signal triggering component of the water pump in several different embodiments of this application;

[0055] Figure 13 This is a schematic diagram illustrating a scenario where a ring signal triggering component in a water pump triggers a signal transmission component, as provided in an embodiment of this application.

[0056] Figures 14 to 16 This is a schematic diagram showing the positional relationship between the annular signal transmission component and the signal triggering component of the water pump in several different embodiments of this application;

[0057] Figure 17A schematic diagram of a scenario where two different positions of the same annular signal triggering component in a water pump are used as embodiments of this application;

[0058] Figures 18 to 19 This is a schematic diagram showing the positional relationship between the annular signal transmission component and the signal triggering component of the water pump in several different embodiments of this application;

[0059] Figure 20 A schematic structural block diagram of a personal care device provided in an embodiment of this application;

[0060] Figure 21 This is a three-dimensional structural diagram of a personal care device provided in an embodiment of this application. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0064] Please see Figures 1 to 3 , Figure 1 This is a schematic structural block diagram of a water pump provided in an embodiment of this application.

[0065] like Figure 1 As shown, the water pump 100 includes a pump body 10, a suction and discharge component 20, and a drive component 30.

[0066] like Figures 2 to 3Specifically, the pump body 10 forms a liquid storage chamber 103 with an inlet 101 and a outlet 102. The suction and discharge components 20 are movable relative to the pump body 10 and are used to perform suction and discharge operations in a time-sharing manner. The suction operation allows liquid to enter the liquid storage chamber 103 through the inlet 101, and the discharge operation allows at least a portion of the liquid in the liquid storage chamber 103 to be discharged from the liquid storage chamber 103 through the outlet 102.

[0067] The drive component 30 is connected to the suction and discharge component 20 and is used to drive the suction and discharge component 20 to perform liquid suction and discharge operations. Specifically, the drive component 30 includes a drive mechanism 301 and a transmission mechanism 302. The drive mechanism 301 is connected to the suction and discharge component 20 through the transmission mechanism 302 to drive the suction and discharge component 20 to perform liquid suction and discharge operations in a time-sharing manner.

[0068] like Figure 3 As shown, the suction and discharge component 20 includes a liquid suction assembly 201 and a liquid discharge assembly 202, which are disposed within the pump body 10 and are movable relative to the pump body 10. The transmission mechanism 302 of the drive component 30 is connected to both the liquid suction assembly 201 and the liquid discharge assembly 202. The drive mechanism 301 can output power and drive the transmission mechanism 302 to operate, thereby driving the liquid suction assembly 201 and the liquid discharge assembly 202 to operate in a time-sharing manner. For example, the drive mechanism 301 drives the liquid suction assembly 201 to perform a liquid suction operation at a first time through the transmission mechanism 302, so as to draw liquid into the storage chamber 103 through the liquid inlet 101, and drives the liquid discharge assembly 202 to perform a liquid discharge operation at a second time through the transmission mechanism 302, so that at least part of the liquid in the storage chamber 103 is discharged from the storage chamber 103 through the liquid discharge outlet 102. The first time and the second time can be the same time or different times.

[0069] For example, the drive mechanism 301 is a motor, which includes a drive shaft. During the operation of the water pump 100, the drive shaft of the motor is connected to the transmission mechanism 302. It is understood that in some embodiments, the drive mechanism 301 can also convert other forms of energy into mechanical energy and transmit the mechanical energy to the transmission mechanism 302 to drive the transmission mechanism 302 to perform different forms of motion. For example, the drive mechanism 301 can also be a pneumatic drive mechanism or an electromagnetic drive mechanism.

[0070] In some embodiments, the water pump 100 further includes a signal transmission component 40 and a signal triggering component 50. The signal transmission component 40 is used to output a signal. The signal triggering component 50 is used to trigger the signal transmission component 40 so that the signal transmission component 40 outputs a corresponding signal.

[0071] It is understood that there may be one or more signal transmission components 40, and there may also be one or more signal triggering components 50; no limitation is made here.

[0072] For example, one of the signal triggering component 50 and the signal transmission component 40 is disposed in the target structure of the water pump 10, and during the operation of the drive component 30 driving the suction and discharge component 20, the signal triggering component 50 and the signal transmission component 40 move relative to each other, so that the signal triggering component 50 triggers the signal transmission component 40 to output a corresponding sensing signal. The target structure includes at least one of the pump body 10, the suction and discharge component 20, the drive mechanism 301 and the transmission mechanism 302.

[0073] The water pump 10 is equipped with a signal transmission component 40 and a signal triggering component 50. During the operation of the suction and discharge component 20 driven by the drive component 30, the signal triggering component 50 and the signal transmission component 40 move relative to each other, so that the signal triggering component 50 triggers the signal transmission component 40 to output a corresponding sensing signal. By using a signal analysis component (such as a processor) that is communicatively connected to the signal transmission component 40 to analyze the sensing signal output by the signal transmission component 40, the position change information of the signal triggering component 50 and / or the signal transmission component 40 relative to the pump body 10 can be obtained. Then, the rotational speed output by the drive component 30 can be analyzed more accurately based on the position change information, which facilitates the speed control of the drive component 30.

[0074] It is understood that during the operation of the suction / discharge component 20 driven by the drive component 30, the relative movement between the signal trigger component 50 and the signal transmission component 40 can be as follows: the signal trigger component 50 is directly or indirectly fixed to the pump body 10, and the drive component 30 moves the signal transmission component 40 relative to the signal trigger component 50 during its operation. Alternatively, the relative movement between the signal trigger component 50 and the signal transmission component 40 can be as follows: the signal transmission component 40 is directly or indirectly fixed to the pump body 10, and the drive component 30 moves the signal trigger component 50 relative to the signal transmission component 40 during its operation. For example, when the signal trigger component 50 is located in the target structure, and the target structure is the pump body 10, the signal trigger component 50 can be located in the inlet valve or outlet valve within the pump body 10. During the pump body 10's liquid suction process, the inlet valve opens and the outlet valve closes; during the pump body 10's liquid discharge process, the inlet valve closes and the outlet valve opens. The signal transmission component 40 can be positioned adjacent to the signal trigger component 50, thereby triggering the signal transmission component 40 to output a signal based on the movement of the signal trigger component 50. In some embodiments, during the operation of the suction and discharge component 20 driven by the drive component 30, any point on the signal trigger component 50 moves relative to the pump body 10, and the change in the relative position between the signal transmission component 40 and the pump body 10 is less than a preset value. For example, the change in the relative position between the signal transmission component 40 and the pump body 10 is zero, that is, the signal transmission component 40 is directly or indirectly fixed to the pump body 10.

[0075] In this embodiment, since the signal transmission component 40 needs to output a signal, and during the signal output process, it is usually necessary to use a signal transmission medium such as a wire. In order to simplify the structure of the water pump and improve the stability of the output signal of the signal transmission component 40, the relative movement of the signal triggering component 50 and the signal transmission component 40 is limited to the signal transmission component 40 being fixed to the pump body 10. During the process of the driving component 30 driving the suction and discharge component 20 to move, the signal triggering component 50 moves relative to the signal transmission component 40 to trigger the signal transmission component 40 to output the corresponding sensing signal relatively stably.

[0076] In some embodiments, the signal transmission component 40 includes at least one of a Hall sensor and a magnetic induction switch, and the signal triggering component 50 includes at least one of a magnet and an electromagnet. Optionally, the signal transmission component 40 is a linear Hall sensor.

[0077] For example, the signal transmission component 40 includes a Hall sensor, and the signal triggering component 50 includes a magnet. The Hall sensor is fixed to the pump body 10 of the water pump 100, and the magnet is set on the transmission mechanism 302. Under the drive of the drive mechanism 301, the magnet moves with the movement of the drive mechanism 301 and triggers the Hall sensor, causing the Hall sensor to output a corresponding sensing signal. Based on the preset correlation between the positional change relationship between the Hall sensor and the magnet and the output rotational speed of the drive mechanism 301, by using a processor to receive the sensing signal output by the Hall sensor and analyzing the received sensing signal, the positional change relationship between the Hall sensor and the magnet can be obtained, and thus the output rotational speed of the drive mechanism 301 can be obtained.

[0078] In some embodiments, the target structure is provided with a limiting part, which is disposed in one of the signal triggering component 50 and the signal transmission component 40 of the target structure, and forms a limiting engagement with the limiting part. The limiting part includes, but is not limited to, a limiting protrusion or a limiting groove.

[0079] In this embodiment, the signal triggering component 50 or the signal transmission component 40 disposed on the target structure is limited by the limiting part, so that the signal triggering component 50 or the signal transmission component 40 can be more firmly fixed to the target structure.

[0080] Please see Figures 4 to 19 To facilitate understanding of the positional relationship between the signal transmission component 40 and the signal triggering component 50, some examples of the positional relationship between the signal transmission component 40 and the signal triggering component 50 will be given below.

[0081] like Figure 4As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and drives the suction / discharge component 20 through the transmission wheel structure 302a. One of the signal triggering component 50 and the signal transmission component 40 is disposed on the transmission wheel structure 302a, and the other is disposed on the pump body 10. For example, the signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the pump body 10. During the operation of the suction / discharge component 20 driven by the drive mechanism 301 of the drive component 30 through the transmission wheel structure 302a, based on the fixing effect of the pump body 10 on the signal transmission component 40, the transmission wheel structure 302a drives the signal triggering component 50 to rotate. When the signal triggering component 50 rotates into its signal sensing area, the signal transmission component 40 can be triggered to output a corresponding sensing signal. That is, the transmission wheel structure 302a drives the signal triggering component 50 to move relative to the signal transmission component 40, and when the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the signal triggering component 50 triggers the signal transmission component 40 to output the corresponding sensing signal.

[0082] It is understood that the transmission wheel structure 302a can drive the suction / discharge component 20 in the following ways: the transmission wheel structure 302a is connected to the suction / discharge component 20, and during the operation of the drive mechanism 301 of the drive component 30, the transmission wheel structure 302a drives the suction / discharge component 20. Alternatively, the transmission wheel structure 302a can be connected to the transmission rod structure 302b, and the transmission rod structure 302b can be connected to the suction / discharge component 20. During the operation of the drive mechanism 301 of the drive component 30, the drive direction can be changed by connecting the transmission wheel structure 302a to the transmission rod structure 302b. The rotation of the transmission wheel structure 302a causes the transmission rod structure 302b to move along a direction approximately equal to the extension direction of the transmission rod structure 302b, and the transmission rod structure 302b drives the suction / discharge component 20 to perform liquid suction or discharge actions. No limitation is made here.

[0083] like Figure 4 and Figure 11As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a, and the drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a, driving the suction and discharge component 20 through the transmission wheel structure 302a. The water pump 100 also includes a housing 60, which is fixed to the pump body 10 and forms a receiving cavity. The transmission mechanism 302 is disposed within the receiving cavity, and one of the signal triggering component 50 and the signal transmission component 40 is disposed in the transmission wheel structure 302a, while the other is disposed in the housing 60. For example, the signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the side of the housing 60 near the signal triggering component 50. During the operation of the suction and discharge component 20 driven by the drive mechanism 301 of the drive component 30 through the transmission wheel structure 302a, the transmission wheel structure 302a causes the signal triggering component 50 to rotate relative to the signal transmission component 40 due to the fixing effect of the housing 60 on the signal transmission component 40. When the signal triggering component 50 rotates into its signal sensing area, it can trigger the signal transmission component 40 to output a corresponding sensing signal. That is, the transmission wheel structure 302a causes the signal triggering component 50 to move relative to the signal transmission component 40, and when the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the signal triggering component 50 triggers the signal transmission component 40 to output a corresponding sensing signal.

[0084] like Figure 5 As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a, and the drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a, driving the suction and discharge component 20 through the transmission wheel structure 302a. The drive component 30 includes a drive mechanism 301, and one of a signal triggering component 50 and a signal transmission component 40 disposed in the transmission wheel structure 302a, and the other disposed in the drive mechanism housing 3011 of the drive mechanism 301. For example, the signal triggering component 50 is disposed in the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the side of the drive mechanism housing 3011 near the transmission wheel structure 302a. During operation, the drive mechanism 301 of the drive component 30 drives the suction and discharge component 20 to move through the transmission wheel structure 302a, based on the fixation of the signal triggering component 50 by the drive mechanism housing 3011. The transmission wheel structure 302a causes the signal triggering component 50 to move relative to the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the signal triggering component 50 triggers the signal transmission component 40 to output the corresponding sensing signal.

[0085] like Figure 6 and Figure 7As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a, and the transmission wheel structure 302a is drively connected to the transmission rod structure 302b to drive the suction and discharge component 20 via the transmission rod structure 302b. One of the signal triggering component 50 and the signal transmission component 40 is disposed on the transmission wheel structure 302a, and the other is disposed on the transmission rod structure 302b.

[0086] like Figure 7 As shown, the transmission rod structure 302b includes an annular connecting portion 3022 and a connecting rod portion 3021 connected to the annular connecting portion 3022. The connecting rod portion 3021 is used to connect the suction and discharge component 20. One of the signal triggering component 50 and the signal transmission component 40 is disposed in the transmission wheel structure 302a, and the other is disposed in the annular connecting portion 3022. For example, the signal triggering component 50 is disposed on the eccentric wheel structure of the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the annular connecting part 3022 rotatably connected to the eccentric wheel structure. During the operation of the driving component 30, the driving component 30 drives the transmission rod structure 302b to move through the transmission wheel structure 302a, so as to drive the suction and discharge component 20 to move through the transmission rod structure 302b. During this process, the cam structure of the transmission wheel structure 302a drives the signal triggering component 50 to rotate, and drives the annular connecting part 3022 rotatably connected to the cam structure to move through the cam structure, so that the signal triggering component 50 is displaced relative to the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the signal triggering component 50 can trigger the signal transmission component 40 to output the corresponding sensing signal.

[0087] In the above embodiments, one of the signal triggering component 50 and the signal transmission component 40 is disposed on the transmission wheel structure 302a, and the other is disposed on a component or structure that is fixed relative to the transmission wheel structure 302a or can be disposed on a component or structure that can be displaced relative to the transmission wheel structure 302a. This enables the signal triggering component 50 and the signal transmission component 40 to move relative to each other during the process of the driving component 30 driving the suction and discharge component 20, and stably triggers the signal transmission component 40 to output the corresponding sensing signal.

[0088] It is understood that there is at least one signal triggering component 50, and its shape can be set as needed. For example, the shape of the signal triggering component 50 may include, but is not limited to, dot-shaped, strip-shaped, arc-shaped, etc., as long as the signal triggering component 50 can trigger the signal transmission component 40 during relative movement with the signal transmission component 40.

[0089] For example, in some embodiments, there are multiple signal triggering components 50, and the multiple signal triggering components 50 are arranged in an arc or ring shape on the transmission wheel structure 302a. Thus, the rotation of the transmission wheel structure 302a causes the multiple signal triggering components 50 to be displaced relative to the signal transmission component 40, so that the signal triggering components 50 at different positions of the transmission wheel structure 302a can trigger the signal transmission component 40.

[0090] like Figure 8 As shown, optionally, at least two of the multiple signal triggering components 50 have different magnetic properties or different magnetization intensities. Based on the difference in magnetic properties or magnetization intensities between the two signal triggering components 50, the signal transmission component 40 outputs different induced signals during the triggering process. Therefore, by analyzing the induced signals, the signal triggering component 50 corresponding to the currently triggered induced signal output by the signal transmission component 40 can be determined from among the multiple signal triggering components 50.

[0091] For example, the plurality of signal triggering components 50 include a first signal triggering component 50a, a second signal triggering component 50b and a third signal triggering component 50c respectively. The three signal triggering components 50 are spaced apart and disposed at different positions on the target structure of the water pump 10 (e.g., the transmission wheel structure 302a). The first signal triggering component 50a and the third signal triggering component 50c have a first magnetization intensity, and the second signal triggering component 50b has a second magnetization intensity.

[0092] When any one of the first signal triggering component 50a, the second signal triggering component 50b, and the third signal triggering component 50c moves to the signal triggering position X within the signal sensing area of ​​the signal transmission component 40, the signal triggering component can trigger the signal transmission component 40 to output a corresponding sensing signal. The distance between the signal triggering component at the signal triggering position X and the signal transmission component 40 is D. That is, when the first signal triggering component 50a and the third signal triggering component 50c move to the signal triggering position X within the signal sensing area of ​​the signal transmission component 40, the signal transmission component 40 can be triggered to output a first sensing signal. When the second signal triggering component 50b moves to the signal triggering position X, the signal transmission component 40 can be triggered to output a second sensing signal. Therefore, by analyzing the sensing signal output by the signal transmission component 40, the target signal triggering component that currently triggers the signal transmission component 40 to output the corresponding sensing signal can be determined from among the multiple signal triggering components 50. Then, the rotational speed of the driving component can be analyzed using the positional change relationship between the target signal triggering component and the signal transmission component 40.

[0093] Optionally, when the signal triggering component 50 is strip-shaped or arc-shaped, the magnetization intensity corresponding to different positions of the signal triggering component 50 is different, or the distance between different positions of the signal triggering component 50 and the signal transmission component 40 is different.

[0094] like Figure 9 As shown, for ease of explanation, the example given is that the distance between different positions of the signal triggering component 50 and the signal transmission component 40 is different. The strip-shaped signal triggering component 50 is disposed at the position of the target structure of the water pump 10 (e.g., the transmission wheel structure 302a). The strip-shaped signal triggering component 50 includes a first position area 501, a second position area 502, and a third position area 503, with the three different position areas disposed at different positions of the target structure.

[0095] When the first position area 501 moves to the signal trigger position X, the distance between the first position area 501 and the signal transmission component 40 is D1. When the second position area 502 moves to the signal trigger position X, the distance between the second position area 502 and the signal transmission component 40 is D2. When the third position area 503 moves to the signal trigger position X, the distance between the third position area 503 and the signal transmission component 40 is D1.

[0096] Therefore, when any of the first position area 501, the second position area 502, and the third position area 503 moves to the signal trigger position X, the signal triggering component can trigger the signal transmission component 40 to output a corresponding sensing signal. That is, when the first position area 501 and the third signal triggering component 50c are at the signal trigger position X, the signal transmission component 40 can be triggered to output a first sensing signal, and when the second position area 502 moves to the signal trigger position X, the signal transmission component 40 can be triggered to output a second sensing signal. Therefore, by analyzing the sensing signal output by the signal transmission component 40, the target position area for the current triggering signal transmission component 40 to output the corresponding sensing signal can be determined from among the multiple signal triggering components 50, and then the rotational speed of the driving component can be analyzed using the positional change relationship between the target position area and the signal transmission component 40.

[0097] In the above embodiments, the signal triggering component 50 can be one, two or more. When there are multiple signal triggering components 50, the multiple signal triggering components 50 are arranged in an arc or ring shape on the transmission wheel structure 302a, so that the signal transmission component 40 can be triggered relatively stably and reliably during the rotation of the transmission wheel structure 302a.

[0098] Furthermore, when there are multiple signal triggering components 50, at least two of the signal triggering components 50 have different magnetisms or different magnetization intensities; or, when the signal triggering component 50 is strip-shaped, the magnetization intensities corresponding to different positions of the signal triggering component 50 are different; or, the spacing between different positions of the signal triggering component 50 and the signal transmission component 40 is different. This enables the signal triggering component 50 at different positions to trigger the same signal transmission component 40 to output different sensing signals, or the same signal triggering component 50 at different positions to trigger the same signal transmission component 40 to output different sensing signals.

[0099] like Figure 10 and Figure 11 As shown, in some embodiments, the transmission mechanism 302 includes at least a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 is connected to the transmission rod structure 302b and is connected to the suction / discharge component 20 through the transmission rod structure 302b. One of the signal triggering component 50 and the signal transmission component 40 is disposed on the transmission rod structure 302b, and the other is disposed on the pump body 10.

[0100] In some embodiments, the transmission mechanism 302 includes at least a transmission rod structure 302b, the driving component 30 is connected to the transmission rod structure 302b, and is connected to the suction and discharge component 20 through the transmission rod structure 302b. One of the signal triggering component 50 and the signal transmission component 40 is disposed in the transmission rod structure 302b, and the other is disposed in the housing 60.

[0101] Optionally, there are multiple signal triggering components 50, wherein the multiple signal triggering components 50 are disposed on the transmission rod structure 302b along the extension direction of the transmission rod structure 302b.

[0102] For example, the signal triggering component 50 is disposed on the transmission rod structure 302b, and the signal transmission component 40 is disposed on at least one of the pump body 10 and the housing 60. Based on the fixing effect of the pump body 10 or the housing 60 on the signal transmission component 40, the driving mechanism 301 of the driving component 30 drives the transmission rod structure 302b to move during operation, so as to cause the signal triggering component 50 to move relative to the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the signal triggering component 50 triggers the signal transmission component 40 to output a corresponding sensing signal.

[0103] It is understood that the drive mechanism 301 of the drive component 30 is connected to the transmission rod structure 302b, and the suction and discharge component 20 is connected through the transmission rod structure 302b. This connection can be achieved by having the drive mechanism 301 of the drive component 30 connected to the transmission rod structure 302b, and the transmission rod structure 302b connected to the suction and discharge component 20. The drive component 30 drives the transmission rod structure 302b to actuate the suction and discharge component 20 connected to it. Alternatively, the drive component 30 may have a transmission wheel structure 302a, which is connected to the transmission rod structure 302b and also connected to the suction and discharge component 20. During the process of the drive component 30 driving the transmission wheel structure 302a, the transmission wheel structure 302a drives the transmission rod structure 302b, which in turn drives the suction and discharge component 20. This is not a limitation in this context.

[0104] In the above embodiments, one of the signal triggering component 50 and the signal transmission component 40 is disposed on the transmission rod structure 302b, and the other is disposed on a component or structure that is relatively fixed relative to the transmission rod structure 302b, so that the signal triggering component 50 and the signal transmission component 40 can move relative to each other during the process of the driving component 30 driving the suction and discharge component 20 to operate.

[0105] Furthermore, the signal triggering component 50 can be one, two, or more. When there are multiple signal triggering components 50, the multiple signal triggering components 50 are arranged along the extension direction of the transmission rod structure 302b, thereby facilitating the relatively stable and reliable triggering of the signal transmission component 40 during the movement of the transmission rod structure 302b.

[0106] like Figures 12 to 13 As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction and discharge component 20 through the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component 50 in the radial direction. The signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the drive mechanism housing 3011 of the drive mechanism 301 of the drive component 30.

[0107] In some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction and discharge component 20 through the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component 50 in the radial direction. The signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the pump body 10.

[0108] In some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction / discharge component 20 via the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component 50 in the radial direction. The water pump 100 also includes a housing 60, which is fixed to the pump body 10 and forms a receiving cavity. The transmission mechanism 302 is disposed within the receiving cavity. The signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the housing 60.

[0109] For ease of explanation, we will use a magnet as an example to illustrate the signal triggering component 50, but it is not limited to the fact that the signal triggering component 50 can only be a magnet; the signal triggering component 50 can also be an electromagnet.

[0110] It can be understood that the first magnetic pole is either the N pole or the S pole, and the second magnetic pole is either the N pole or the S pole. For example, the first magnetic pole is the N pole and the second magnetic pole is the S pole, or the first magnetic pole is the S pole and the second magnetic pole is the N pole.

[0111] like Figure 12 and Figure 13 As shown, the signal triggering component 50 is a ring magnet with its magnetic poles radially distributed on opposite sides of the signal triggering component 50 along the radial direction. The ring magnet is disposed on the transmission wheel structure 302a of the transmission mechanism 302. The signal transmission component 40 is disposed on at least one of the housing 60, the pump body 10, and the drive mechanism housing 3011 of the drive mechanism 301. Based on the fixing effect of the pump body 10, the housing 60, or the drive mechanism housing 3011 on the signal transmission component 40, the drive mechanism 301 drives the transmission wheel structure 302a to rotate during the operation of the drive component 30, so that the ring magnet rotates along with the transmission wheel structure 302a, thereby causing the signal triggering component 50 to be displaced relative to the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the ring magnet triggers the signal transmission component 40 to output a corresponding sensing signal.

[0112] like Figure 13 and Figure 14 As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction and discharge component 20 through the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component 50 in the radial direction. The signal triggering component 50 is arranged around the drive shaft of the drive mechanism 301 of the drive component 30, and the signal transmission component 40 is disposed in the drive mechanism housing 3011 of the drive mechanism 301 of the drive component 30 and is located on the outer periphery of the drive shaft of the drive mechanism 301.

[0113] like Figure 13 and Figure 15 As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction and discharge component 20 through the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component 50 in the radial direction. The signal triggering component 50 is arranged around the drive shaft 3012 of the drive mechanism 301 of the drive component 30. The signal transmission component 40 is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component 50. For example, the housing 60 or the pump body 10 has a mounting bracket with one or more mounting positions for mounting the signal transmission component 40. After the signal transmission component 40 is mounted in the mounting position of the mounting bracket, the signal transmission component 40 is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component 50.

[0114] For example, based on the fixing effect of the pump body 10 and the housing 60 on the signal transmission component 40, during the operation of the drive component 30, the ring magnet (signal triggering component 50) rotates with the drive shaft 3012 of the drive mechanism 301 and has a relative displacement with the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the ring magnet triggers the signal transmission component 40 to output the corresponding sensing signal.

[0115] It is understood that in the embodiments of this application, the relative displacement between the signal triggering component 50 and the signal transmission component 40 can be caused by relative rotation or relative positional movement. That is, the spatial position of any point on the signal triggering component 50 and the fixed point on the transmission component 40 changes over time.

[0116] For example, when the signal triggering component 50 and the transmission component 40 rotate relative to each other, the spatial positional relationship between point A on the signal triggering component 50 and point B on the transmission component 40 changes over a period of time, thereby causing the distance between point A and point B to change over a period of time.

[0117] In the above embodiment, the signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole arranged radially along the signal triggering component 50. The signal triggering component 50 is arranged on a structure or component that can move relative to the pump body 10 during the operation of the water pump, and the signal transmission component 40 is arranged on a structure or component that is fixed relative to the pump body 10. This allows the signal triggering component 50 and the signal transmission component 40 to move relative to each other during the operation of the suction and discharge component 20 driven by the driving component 30, and stably triggers the signal transmission component 40 to output the corresponding sensing signal.

[0118] like Figure 16 and Figure 17 As shown, in some embodiments, the transmission mechanism 302 includes a transmission wheel structure 302a and a transmission rod structure 302b. The drive mechanism 301 of the drive component 30 meshes with the transmission wheel structure 302a and is connected to the suction and discharge component 20 through the transmission rod structure 302b. The signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole, which are formed on opposite sides of the signal triggering component 50 in the axial direction. The signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on at least one of the pump body 10, the housing 60, or the drive mechanism housing 301. The magnetic field strength of the signal triggering component 50 varies at different positions in the annular circumferential direction, or the thickness of the signal triggering component 50 varies at different positions in the annular circumferential direction, or the distance between the signal triggering component 50 and the signal transmission component 40 varies at different positions in the annular circumferential direction.

[0119] For example, taking a signal triggering component 50 as a ring magnet, and the ring magnet being disposed after the transmission wheel structure 302a, the distance between the ring magnet and the signal transmission component 40 at different positions in the ring circumferential direction will be explained as follows.

[0120] The signal triggering component 50 is disposed on the transmission wheel structure 302a, and the signal transmission component 40 is disposed on the pump body 10. After the signal triggering component 50 is disposed on the transmission wheel structure 302a, the signal triggering component 50 has at least a first position area 501a and a second position area 502b. The distance between the first position area 501a and the second position area 502b and the signal transmission component 40 is different.

[0121] The ring magnet (signal triggering component 50) rotates along with the rotation of the transmission wheel structure 302a and has a relative displacement with the signal transmission component 40. When the signal triggering component 50 moves into the signal sensing area of ​​the signal transmission component 40, the ring magnet triggers the signal transmission component 40 to output the corresponding sensing signal.

[0122] For example, when the first position region 501b of the annular magnet moves to the signal trigger position X within the signal sensing area of ​​the signal transmission component 40, the distance between the first position region 501b and the signal transmission component 40 is D3, and the signal trigger component 50 can trigger the signal transmission component 40 to output a third sensing signal. When the second position region 502b moves to the signal trigger position X, the distance between the second position region 502b and the signal transmission component 40 is D4, and the signal trigger component 50 can trigger the signal transmission component 40 to output a fourth sensing signal. Therefore, by analyzing the sensing signal output by the signal transmission component 40, the target position region corresponding to the current trigger signal transmission component 40 can be determined from multiple signal trigger components 50, and then the rotational speed of the driving component can be analyzed using the positional change relationship between the target position region and the signal transmission component 40.

[0123] like Figure 16 and Figure 18 As shown, in some embodiments, as described above Figure 17 In a different implementation, the signal triggering component 50 is arranged around the drive shaft 3012 of the drive mechanism 301 of the drive component 30, and the signal transmission component 40 is arranged on the drive mechanism housing 301 or housing 60 of the drive mechanism 301 of the drive component 30, and is located on the outer periphery of the drive shaft 3012 of the drive mechanism 301.

[0124] like Figure 16 and Figure 19 As shown, in some embodiments, as described above Figure 17 In a different implementation, the signal triggering component 50 is arranged around the drive shaft 3012 of the drive mechanism 301 of the drive component 30, and the signal transmission component 40 is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component 50. For example, the housing 60 or the pump body 10 has a mounting bracket with one or more mounting positions for mounting the signal transmission component 40. After the signal transmission component 40 is mounted in the mounting position of the mounting bracket, the signal transmission component 40 is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component 50.

[0125] In the above embodiment, the signal triggering component 50 is annular and has a first magnetic pole and a second magnetic pole arranged along the axial direction of the signal triggering component 50. The signal triggering component 50 is arranged on a structure or component that can move relative to the pump body 10 during the operation of the water pump, and the signal transmission component 40 is arranged on a relatively fixed structure or component. This allows the signal triggering component 50 and the signal transmission component 40 to move relative to each other during the operation of the drive component 30 driving the suction and discharge component 20, and stably triggers the signal transmission component 40 to output the corresponding sensing signal.

[0126] Please see Figures 20 to 21 , Figure 20 A schematic structural block diagram of the personal care device provided in this application.

[0127] like Figure 20 and Figure 21 As shown, the personal care device 200 includes a main unit 200a having the aforementioned water pump 100, a liquid storage tank 200b connected to the main unit 200a, and a cleaning component 200c. The liquid storage tank 200b is used to store liquid, and the liquid storage tank 200b is provided with a liquid flow port. Users can add liquid to the liquid storage tank 200b through the liquid flow port, and the liquid storage tank 200b can also deliver liquid to the outside through the liquid flow port.

[0128] It is understood that there can be one or more fluid flow ports. For example, when there is one fluid flow port, it can serve as both an inlet and an outlet. When there are at least two fluid flow ports, at least one of them serves as an inlet and the other as an outlet.

[0129] For example, the water pump 100 within the main unit 200a can at least provide power for liquid flow. Under the action of the water pump 100, the liquid in the storage tank 200b can be connected to the inlet 101 of the water pump 100 through the liquid flow communication port, and flow through the outlet 10 of the water pump 100 to the cleaning component 200c adapted to the main unit 200a. The liquid is then sprayed out through the outlet of the cleaning component 200c to clean the target object, which includes, but is not limited to, the user's mouth. The cleaning component 200c includes, but is not limited to, a nozzle, a brush head, etc.

[0130] It is understood that users can add liquids stored in the reservoir 200b as needed. For example, liquids stored in the reservoir 200b include, but are not limited to, water, saline solution, and mouthwash; no specific limitation is made here.

[0131] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the scope of the technology disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A water pump used in personal care devices, characterized in that, include: The pump body forms a liquid storage chamber having an inlet and an outlet; The suction and discharge components are movable relative to the pump body and are used to perform liquid suction and liquid discharge operations in a time-sharing manner. The liquid suction operation allows liquid to enter the liquid storage chamber through the liquid inlet, and the liquid discharge operation allows at least a portion of the liquid in the liquid storage chamber to be discharged from the liquid storage chamber through the liquid discharge outlet. A driving component is connected to the suction and discharge component and is used to drive the suction and discharge component to perform the liquid suction operation and the liquid discharge operation. The driving component includes a driving mechanism and a transmission mechanism. The driving mechanism is connected to the suction and discharge component through the transmission mechanism to drive the suction and discharge component to perform the liquid suction operation and the liquid discharge operation in a time-sharing manner. Signal transmission components, used for outputting signals; and A signal triggering component is used to trigger the signal transmitting component so that the signal transmitting component outputs a corresponding signal. The signal triggering component and the signal transmission component are disposed in the target structure of the water pump. During the process of the driving component driving the suction and discharge component to move, the signal triggering component and the signal transmission component move relative to each other, so that the signal triggering component triggers the signal transmission component to output a corresponding sensing signal. The target structure includes at least one of the pump body, the suction and discharge component, the driving mechanism and the transmission mechanism.

2. The water pump according to claim 1, characterized in that, The target structure is provided with a limiting part, which is disposed in one of the signal triggering component and the signal transmission component of the target structure, and forms a limiting cooperation with the limiting part.

3. The water pump according to claim 1, characterized in that, During the process of the driving component driving the suction and discharge component, any point on the signal triggering component moves relative to the pump body, and the change in the relative position between the signal transmission component and the pump body is less than a preset value.

4. The water pump according to claim 1, characterized in that, The transmission mechanism includes a transmission wheel structure, the drive mechanism meshes with the transmission wheel structure, and drives the suction and discharge components through the transmission wheel structure; Wherein, one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the pump body; Alternatively, the water pump may further include a housing, which is fixed to the pump body and forms a receiving cavity, the transmission mechanism is disposed in the receiving cavity, and one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the housing; Alternatively, one of the signal triggering component and the signal transmission component may be disposed in the transmission wheel structure, and the other may be disposed in the drive mechanism housing of the drive mechanism; Alternatively, the transmission mechanism may further include a transmission rod structure, wherein the transmission wheel structure is connected to the transmission rod structure and is connected to the suction and discharge component through the transmission rod structure to drive the suction and discharge component; and one of the signal triggering component and the signal transmission component is disposed in the transmission wheel structure, and the other is disposed in the transmission rod structure.

5. The water pump according to claim 4, characterized in that, The transmission rod structure includes an annular connecting part and a connecting rod part connected to the annular connecting part, the connecting rod part being used to connect the suction and discharge components; One of the signal triggering component and the signal transmission component is disposed on the transmission wheel structure, and the other is disposed on the annular connecting part.

6. The water pump according to claim 4, characterized in that, The signal triggering components are multiple, wherein the multiple signal triggering components are arranged in an arc shape or a ring shape on the transmission wheel structure.

7. The water pump according to claim 6, characterized in that, At least two of the signal triggering components have different magnetisms or different magnetization intensities.

8. The water pump according to claim 4, characterized in that, The shape of the signal triggering component includes at least one of the following: arc-shaped, strip-shaped, or dot-shaped.

9. The water pump according to claim 8, characterized in that, When the signal triggering component is strip-shaped, the magnetization intensity corresponding to different positions of the signal triggering component is different, or the distance between different positions of the signal triggering component and the signal transmission component is different.

10. The water pump according to claim 1, characterized in that, The transmission mechanism includes at least a transmission rod structure, the drive mechanism is connected to the transmission rod structure, and is connected to the suction and discharge components through the transmission rod structure; Wherein, one of the signal triggering component and the signal transmission component is disposed in the transmission rod structure, and the other is disposed in the pump body; Alternatively, the water pump may further include a housing, which is fixed to the pump body and forms a receiving cavity, the transmission mechanism is disposed within the receiving cavity, and one of the signal triggering component and the signal transmission component is disposed in the transmission rod structure, while the other is disposed in the housing.

11. The water pump according to claim 10, characterized in that, The signal triggering components are multiple, wherein the multiple signal triggering components are disposed on the transmission rod structure along the extension direction of the transmission rod structure.

12. The water pump according to claim 1, characterized in that, The transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge component through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, and the first magnetic pole and the second magnetic pole are formed on opposite sides of the signal triggering component in the radial direction. The signal triggering component is disposed in the transmission wheel structure, and the signal transmission component is disposed in the drive mechanism housing of the drive mechanism; Alternatively, the signal triggering component may be disposed on the transmission wheel structure, and the signal transmission component may be disposed on the pump body; Alternatively, the water pump may further include a housing, which is fixed to the pump body and forms a receiving cavity, and the transmission mechanism is disposed within the receiving cavity; the signal triggering component is disposed on the transmission wheel structure, and the signal transmission component is disposed on the housing; Alternatively, the signal triggering component is disposed around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is disposed in the drive mechanism housing of the drive mechanism and located on the outer periphery of the drive shaft of the drive mechanism. Alternatively, the signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component.

13. The water pump according to claim 1, characterized in that, The transmission mechanism includes a transmission wheel structure and a transmission rod structure. The drive mechanism meshes with the transmission wheel structure and is connected to the suction and discharge component through the transmission rod structure. The signal triggering component is annular and has a first magnetic pole and a second magnetic pole, with the first magnetic pole and the second magnetic pole formed on opposite sides of the signal triggering component along the axial direction. The signal triggering component is disposed on the transmission wheel structure, the signal transmission component is disposed on the pump body, and the magnetic field strength corresponding to different positions of the signal triggering component in the annular circumferential direction is different, or the thickness corresponding to different positions of the signal triggering component in the annular circumferential direction is different, or the distance between the signal triggering component and the signal transmission component in different positions of the annular circumferential direction is different. Alternatively, the signal triggering component is arranged around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is arranged opposite to the first magnetic pole surface or the second magnetic pole surface of the signal triggering component; Alternatively, the signal triggering component is disposed around the drive shaft of the drive mechanism of the drive component, and the signal transmission component is disposed in the drive mechanism housing of the drive mechanism and located on the outer periphery of the drive shaft of the drive mechanism.

14. The water pump according to any one of claims 1-13, characterized in that, The signal transmission component includes at least one of a Hall sensor and a magnetic induction switch, and the signal triggering component includes at least one of a magnet and an electromagnet.

15. The water pump according to claim 14, characterized in that, The signal transmission component is a linear Hall sensor.

16. A personal care device, characterized in that, include: A main unit and a cleaning component connected to the main unit, wherein the main unit is provided with a water pump as described in any one of claims 1-15.

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