Water pump and humidifier

Abstract

The water pump comprises a pump shell, a transmission shaft and blades, a pump cavity is formed in the pump shell, a water suction port and a water outlet which are communicated with the pump cavity are formed in the pump shell, the transmission shaft is arranged in the pump cavity in a penetrating mode, and the rotating axis of the transmission shaft is parallel to the axis of the water suction port; the blades are installed on the transmission shaft, part of the blades are arranged in the pump cavity, and the other part of the blades protrude out of the water suction opening along the axis of the water suction opening. The water pump can prevent the water suction opening from being blocked by gas, and the water pumping efficiency of the water pump can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of automation equipment, and in particular, to a water pump and a humidifier. Background Art

[0002] When the water pump in a humidifier is operating, the pump's water intake port is easily clogged by gas or bubbles. When this occurs, it hinders the flow of water from the intake port into the pump body, causing the pump's water absorption capacity to weaken or even fail completely. Related technologies typically employ manual intervention or standardized usage methods to prevent gas blockage in the water pump. However, these methods cannot fundamentally solve the problem of gas blockage and result in a poor user experience. Utility Model Content

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present disclosure provides a water pump that can prevent the water suction port from being blocked by gas, thereby improving the water pumping efficiency of the water pump.

[0005] An embodiment of the present disclosure also provides a humidifier.

[0006] The water pump of the embodiment of the present disclosure includes: a pump casing, a pump cavity is provided in the pump casing, and a water suction port and a water outlet connected to the pump cavity are provided on the pump casing; a transmission shaft, the transmission shaft is passed through the pump cavity, and the rotation axis of the transmission shaft is parallel to the axis of the water suction port; blades are installed on the transmission shaft, some of the blades are provided in the pump cavity, and the other part of the blades protrude outside the water suction port along the axis of the water suction port.

[0007] According to the water pump of the embodiment of the present disclosure, when the water pump is operating, the drive shaft drives the blades to rotate. The blades within the pump chamber can draw water from the outside through the water intake into the pump chamber, and then force it out to the water outlet. Because some blades protrude outside the water intake along the axis of the water intake, when the blades rotate, they can disperse bubbles at the water intake, preventing bubbles from blocking the water intake or entering the water pump, thereby avoiding air blockage and improving the pumping efficiency of the water pump.

[0008] In some embodiments, a distance between the end of the blade protruding from the water suction port and the water suction port is L, wherein L is ≥ 2 mm.

[0009] In some embodiments, when the diameter of the water suction port is less than or equal to 10 mm, 2 mm ≤ L ≤ 4 mm.

[0010] In some embodiments, in the radial direction of the water suction port, the gap between the blade and the water suction port is A, wherein 0.8 mm ≤ A ≤ 1.2 mm.

[0011] In some embodiments, the blades include main blades and auxiliary blades, the main blades and the auxiliary blades are arranged along the axial direction of the transmission shaft, the main blades are arranged in the pump chamber, and the auxiliary blades are arranged at the water suction port and protrude outside the water suction port. The main blades and the auxiliary blades both extend along the axial direction of the transmission shaft, the extension direction of the main blades has a preset angle with the axial direction of the transmission shaft, and the extension direction of the auxiliary blades is parallel to the axial direction of the transmission shaft.

[0012] In some embodiments, the blade further includes a connecting sleeve, the main blade and the auxiliary blade are both mounted on the connecting sleeve, the connecting sleeve is provided with an assembly hole, one end of the transmission shaft is inserted into the assembly hole; and / or, the main blade and the auxiliary blade are both multiple, and the multiple main blades and the multiple auxiliary blades are arranged at intervals along the circumference of the transmission shaft.

[0013] In some embodiments, a water outlet channel is provided in the pump casing, and the water outlet channel includes a transition section and a main channel. The pump chamber is connected to the main channel through the transition section. The water outlet is provided at one end of the main channel away from the transition section, and the extension path of the transition section is a curve.

[0014] In some embodiments, the pump housing includes a main housing and a cover plate, the cover plate is mounted on the main housing, the pump chamber and the transition section are formed in the main housing, and the main channel is formed on the cover plate.

[0015] In some embodiments, the cover plate includes a cover plate body and a connecting pipe, the connecting pipe is installed on the cover plate body, the cover plate body covers the pump chamber and the transition section, and the main channel is arranged in the connecting pipe; and / or, the cover plate is welded and sealed to the main shell; and / or, the water pump also includes a motor, which is installed on the cover plate and connected to the drive shaft.

[0016] A humidifier according to another embodiment of the present disclosure includes the water pump according to the embodiment of the present disclosure.

[0017] According to the humidifier embodiment of the present disclosure, when the water pump is operating, the drive shaft drives the blades to rotate. The blades within the pump chamber can draw water from the water intake into the pump chamber and then force it out to the water outlet. Because some of the blades protrude outside the water intake along the axis of the water intake, when the blades rotate, they can disperse bubbles at the water intake position, preventing bubbles from blocking the water intake or entering the water pump, thereby avoiding air blockage and improving the pumping efficiency of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is an axonometric view of a water pump according to an embodiment of the present disclosure.

[0019] Figure 2 It is a front view of the water pump according to an embodiment of the present disclosure.

[0020] Figure 3 is a cross-sectional view of a water pump according to an embodiment of the present disclosure.

[0021] Figure 4 2. It is a bottom view of the water pump according to the embodiment of the present disclosure.

[0022] Figure 5 It is a schematic diagram of the installation of the main housing and blades of the water pump according to the embodiment of the present disclosure.

[0023] Figure 6 Schematic diagram of the blades of the water pump according to the embodiment of the present disclosure.

[0024] Figure 7 is a schematic diagram of a humidifier according to an embodiment of the present disclosure.

[0025] Figure 8 is a partial cross-sectional view of a humidifier according to an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1. Pump casing; 11. Main casing; 111. Pump chamber; 12. Cover plate; 121. Cover plate body; 122. Connecting pipe; 13. Water inlet; 14. Water outlet; 15. Water outlet channel; 151. Transition section;

[0028] 2. Blade; 21. Main blade; 22. Auxiliary blade; 23. Connecting sleeve; 231. Assembly hole;

[0029] 3. Drive shaft;

[0030] 4. Motor;

[0031] 5. Humidifier; 51. Water tank. DETAILED DESCRIPTION

[0032] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

[0033] Please refer to the following Figures 1 to 8 A water pump and a humidifier according to embodiments of the present disclosure are described.

[0034] like Figures 1 to 6As shown, the water pump of the present embodiment includes: a pump housing 1, a transmission shaft 3, and blades 2. A pump chamber 111 is defined within the pump housing 1. The pump housing 1 is provided with a water intake 13 and a water outlet 14 that communicate with the pump chamber 111. The transmission shaft 3 passes through the pump chamber 111, with the axis of rotation of the transmission shaft 3 parallel to the axis of the water intake 13. The blades 2 are mounted on the transmission shaft 3, with some blades 2 located within the pump chamber 111 and others protruding from the water intake 13 along the axis of the water intake 13.

[0035] According to the water pump of the embodiment of the present disclosure, when the water pump is operating, the transmission shaft 3 drives the blades 2 to rotate, and the blades 2 in the pump chamber 111 can draw water from the outside through the water intake port 13 into the pump chamber 111, and then press it out to the water outlet 14. Because part of the blades 2 protrudes outside the water intake port 13 along the axis of the water intake port 13, when the blades 2 rotate, the blades 2 can break up bubbles at the water intake port 13, thereby preventing bubbles from blocking the water intake port 13 or entering the interior of the water pump, thereby avoiding air blockage and facilitating improved pumping efficiency of the water pump.

[0036] The inventors of the present application have discovered through experimental research that air blockage usually occurs in the pump chamber 111 or the water suction port 13 of the water pump. When the water pump is out of power, shut down or deactivated during operation, the water in the pump body will flow back, causing negative pressure in the pump chamber 111. When the water pump is restarted, due to the existence of negative pressure, air may enter the pump chamber 111 and form an air blockage. When the blades 2 of the water pump of the embodiment of the present disclosure rotate, the bubbles at the water suction port 13 can be broken up, which can prevent gas from entering the pump chamber 111, thereby ensuring the water pumping performance of the water pump.

[0037] In other words, after the water pump of the embodiment of the present disclosure fails to pump water, it can restore its pumping capacity by itself simply by rotating the blades 2 without human intervention, which is beneficial to improving the user experience.

[0038] For example, when the water pump is normally placed in a water tank, the water suction port 13 is provided at the lower end of the pump housing 1. Water in the water tank can be sucked into the pump cavity 111 from bottom to top.

[0039] Alternatively, as Figure 2 As shown, the distance between the distal end of the blade 2 protruding from the water inlet 13 and the water inlet 13 is L, where L is ≥ 2 mm. It is understood that the distance between the lower end of the blade 2 and the lower edge of the water inlet 13 is L. Through experimental research, the inventors of this application have found that when the distance between the distal end of the blade 2 protruding from the water inlet 13 and the water inlet 13 is greater than or equal to 2 mm, the probability of gas entering the water pump can be further reduced.

[0040] In one example, when the diameter of the water suction port 13 is less than or equal to 10 mm, 2 mm ≤ L ≤ 4 mm. The inventors of the present application have discovered through experimental research that when the diameter of the water suction port 13 is less than or equal to 10 mm, due to the small diameter of the water suction port 13, bubbles gather at the position of the water suction port 13, easily forming a water film, which will prevent water from smoothly entering the water suction port 13. Therefore, designing the distance between the end of the blade 2 protruding from the water suction port 13 and the water suction port 13 to be between 2 mm and 4 mm can greatly reduce the probability of water film formation at the position of the water suction port 13, and can also reduce the axial dimension of the water pump, making the structure of the water pump more compact.

[0041] For example, L can be 2 mm, 2.1 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm.

[0042] Alternatively, as Figure 4 As shown, in the radial direction of the water suction port 13, the gap between the blade 2 and the water suction port 13 is A, where 0.8mm≤A≤1.2mm. It is understandable that the distance between the radial outer end of the blade 2 and the inner wall of the water suction port 13 is A. For example, A can be 0.8mm, 1.0mm, or 1.2mm. The inventors of this application have found through experimental research that when the gap A between the blade 2 and the water suction port 13 adopts the above-mentioned numerical range, it can meet the assembly requirements of the blade 2, prevent the blade 2 from colliding with the inner wall of the water suction port 13 when the motor 4 vibrates, and reduce the operating noise of the water pump. It also ensures that the blade 2 can disperse the bubbles at the water suction port 13, resulting in a better use effect.

[0043] Alternatively, as Figure 5 and Figure 6 As shown, the blade 2 includes a main blade 21 and an auxiliary blade 22. The main blade 21 and the auxiliary blade 22 are arranged along the axial direction of the transmission shaft 3 (as shown in FIG. Figure 3 The main blades 21 are arranged in the pump chamber 111, and the auxiliary blades 22 are arranged at the water suction port 13 and protrude from the water suction port 13. The main blades 21 and the auxiliary blades 22 both extend along the axial direction of the transmission shaft 3. The extension direction of the main blades 21 has a preset angle with the axial direction of the transmission shaft 3, and the extension direction of the auxiliary blades 22 is parallel to the axial direction of the transmission shaft 3.

[0044] It can be understood that the blade 2 is divided into two parts. One part of the blade 2 (the main blade 21) is mainly responsible for pressing the water flow from the water intake 13 to the water outlet 14, and the other part of the blade 2 (the auxiliary blade 22) is mainly responsible for breaking up the bubbles at the water intake 13.

[0045] Because the extension direction of the main blades 21 forms a predetermined angle with the axial direction of the transmission shaft 3, the pumping efficiency of the water pump can be further improved. For example, the extension path of the main blades 21 can be a spiral. Because the extension direction of the secondary blades 22 is parallel to the axial direction of the transmission shaft 3, the air bubbles at the water inlet 13 are effectively dispersed, the blades 2 are easily removed from the mold, and the difficulty of manufacturing the blades 2 is reduced.

[0046] Specifically, if Figure 5 and Figure 6 As shown, the blade 2 also includes a connecting sleeve 23, and the main blade 21 and the auxiliary blade 22 are both mounted on the connecting sleeve 23. The connecting sleeve 23 is provided with an assembly hole 231. One end of the transmission shaft 3 is inserted into the assembly hole 231, and the main blade 21 and the auxiliary blade 22 are connected to each other. It can be understood that the connecting sleeve 23, the main blade 21 and the auxiliary blade 22 are an integrally formed part, and one end of the transmission shaft 3 is fixedly inserted into the assembly hole 231 of the connecting sleeve 23 to drive the blade 2 to rotate synchronously. The water pump of the embodiment of the present disclosure can facilitate the processing and manufacturing of the blade 2 by designing the blade 2 into the above-mentioned structure, and the structural strength is relatively high.

[0047] In one example, if Figure 5 and Figure 6 As shown, there are multiple main blades 21 and multiple auxiliary blades 22, and the multiple main blades 21 and the multiple auxiliary blades 22 are arranged at intervals along the circumference of the transmission shaft 3. This can improve the pumping efficiency of the water pump and the effect of breaking up bubbles. For example, there are three main blades 21 and three auxiliary blades 22, and the three main blades 21 are arranged at equal intervals along the circumference of the connecting sleeve 23, and the three auxiliary blades 22 are arranged at equal intervals along the circumference of the connecting sleeve 23.

[0048] In some embodiments, as Figure 3 and Figure 5 As shown, a water outlet channel 15 is provided within the pump housing 1. The water outlet channel 15 includes a transition section 151 and a main channel (not shown). The pump chamber 111 communicates with the main channel (not shown) via the transition section 151. The water outlet 14 is provided at one end of the main channel (not shown) facing away from the transition section 151. The extension path of the transition section 151 is curved. Because the extension path of the transition section 151 is curved, water within the pump chamber 111 can be smoothly directed into the main channel, reducing internal pressure and turbulence during water discharge, thereby improving the energy efficiency of the water pump.

[0049] For example, Figure 5 As shown, the inner wall of the transition section 151 is connected to the inner wall of the pump chamber 111 and the inner wall of the main channel in a smooth transition manner. For example, the bottom wall of the transition section 151 is an arc-shaped surface, which is tangent to the inner wall of the pump chamber 111 and the inner wall of the main channel.

[0050] Alternatively, as Figure 1 and Figure 5 As shown, the pump housing 1 includes a main housing 11 and a cover plate 12. The cover plate 12 is mounted on the main housing 11. The pump chamber 111 and the transition section 151 are formed in the main housing 11, and the main channel is formed on the cover plate 12. It is understood that the main housing 11 and the cover plate 12 can be manufactured separately, that is, the pump chamber 111 and the transition section 151 can be machined and formed on the main housing 11, and the main channel can be machined and formed on the cover plate 12. This facilitates the processing and manufacturing of the pump housing 1, and has a simple structural design and is easy to assemble.

[0051] Specifically, if Figure 2 and Figure 5 As shown, the cover plate 12 includes a cover plate body 122 and a connecting pipe 122. The connecting pipe 122 is installed on the cover plate body 122. The cover plate body 122 covers the pump chamber 111 and the transition section 151. The main channel is provided in the connecting pipe 122. The connecting pipe 122 is provided in the vertical direction (such as Figure 2 The water outlet 14 is located at the upper end of the connecting pipe 122, and the water inlet 13 is located on the bottom surface of the main housing 11. Since the connecting pipe 122 is mounted on the cover body 122, the water output from the water pump flows upward. Furthermore, since the connecting pipe 122 is integrated into the cover 12, the number of assembled parts can be reduced while ensuring a sealed pipeline.

[0052] For example, the cover plate 12 is sealed by welding to the main housing 11. The welding method is ultrasonic welding, which can improve the sealing effect between the cover plate 12 and the main housing 11.

[0053] Specifically, the water pump further includes a first threaded member (not shown), which is provided through the cover plate 12 and the main housing 11 to ensure the stability of the connection between the cover plate 12 and the main housing 11 .

[0054] In the example of this application, Figure 1 As shown, the water pump further includes a motor 4, which is mounted on the cover plate 12 and connected to the transmission shaft 3. For example, the transmission shaft 3 and the motor 4 may be connected in a split-type structure, i.e., the motor shaft of the motor 4 is connected to the transmission shaft 3. For another example, the motor shaft of the motor 4 may be the transmission shaft 3; in other words, the motor shaft and the transmission shaft 3 may be an integrated structure. This application does not limit the arrangement of the transmission shaft 3 and the motor 4.

[0055] For example, the water pump further includes a second threaded member (not shown), which passes through the motor 4 and the cover plate 12 to firmly fix the motor 4 on the cover plate 12 .

[0056] like Figure 7 and Figure 8As shown, a humidifier 5 according to another embodiment of the present disclosure includes a water tank 51 and a water pump according to an embodiment of the present disclosure. The water pump is installed in the water tank 51, and the water suction port 13 of the water pump opens downward and is arranged near the bottom of the water tank 51.

[0057] For example, the humidifier 5 may be a vehicle-mounted humidifier.

[0058] According to the humidifier 5 of the embodiment of the present disclosure, when the water pump is operating, the drive shaft 3 drives the blades 2 to rotate, and the blades 2 in the pump chamber 111 can draw water from the water storage tank 51 through the water intake port 13 into the pump chamber 111, and then press it out to the water outlet 14. Because part of the blades 2 protrude outside the water intake port 13 along the axis of the water intake port 13, when the blades 2 rotate, the blades 2 can break up bubbles at the water intake port 13, thereby preventing bubbles from blocking the water intake port 13 or entering the interior of the water pump, thereby avoiding air blockage and facilitating improved water pumping efficiency.

[0059] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication between them; direct connections or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0062] In the present disclosure, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0063] In the present disclosure, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0064] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present disclosure.

Claims

1. A water pump, characterized in that: include: A pump housing, wherein a pump cavity is provided in the pump housing, and a water inlet and a water outlet communicated with the pump cavity are provided on the pump housing; A transmission shaft is provided in the pump chamber, wherein the rotation axis of the transmission shaft is parallel to the axis of the water suction port. The blades are mounted on the transmission shaft, part of the blades are arranged in the pump cavity, and the other part of the blades protrude outside the water suction port along the axis of the water suction port.

2. The water pump according to claim 1, characterized in that The distance between the end of the blade protruding from the water suction port and the water suction port is L, wherein L is ≥ 2 mm.

3. The water pump according to claim 2, characterized in that When the diameter of the water suction port is less than or equal to 10 mm, 2 mm ≤ L ≤ 4 mm.

4. The water pump according to claim 1, characterized in that In the radial direction of the water suction port, a gap between the blade and the water suction port is A, wherein 0.8 mm ≤ A ≤ 1.2 mm.

5. The water pump according to claim 1, characterized in that The blades include main blades and auxiliary blades, and the main blades and the auxiliary blades are arranged along the axial direction of the transmission shaft. The main blades are arranged in the pump chamber, and the auxiliary blades are arranged at the water suction port and protrude outside the water suction port. The main blades and the auxiliary blades both extend along the axial direction of the transmission shaft. The extension direction of the main blades has a preset angle with the axial direction of the transmission shaft, and the extension direction of the auxiliary blades is parallel to the axial direction of the transmission shaft.

6. The water pump according to claim 5, characterized in that The blade further includes a connecting sleeve, the main blade and the auxiliary blade are both mounted on the connecting sleeve, the connecting sleeve is provided with an assembly hole, one end of the transmission shaft is inserted into the assembly hole; And / or, there are multiple main blades and multiple auxiliary blades, and the multiple main blades and the multiple auxiliary blades are arranged at intervals along the circumference of the transmission shaft.

7. The water pump according to any one of claims 1 to 6, characterized in that: A water outlet channel is provided in the pump housing, and the water outlet channel includes a transition section and a main channel. The pump chamber is connected to the main channel through the transition section. The water outlet is provided at one end of the main channel away from the transition section, and the extension path of the transition section is a curve.

8. The water pump according to claim 7, characterized in that The pump housing includes a main housing and a cover plate, wherein the cover plate is mounted on the main housing, the pump chamber and the transition section are formed in the main housing, and the main channel is formed on the cover plate.

9. The water pump according to claim 8, characterized in that The cover plate includes a cover plate body and a connecting pipe, wherein the connecting pipe is mounted on the cover plate body, the cover plate body covers the pump chamber and the transition section, and the main channel is provided in the connecting pipe; And / or, the cover plate is welded and sealed to the main housing; And / or, the water pump further includes a motor, which is mounted on the cover plate and connected to the transmission shaft.

10. A humidifier, characterized in that: The water pump comprises the water pump according to any one of claims 1 to 9.

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