Bubble water generating device and water heater

Abstract

The present invention provides a bubble water generating device and a water heater. The bubble water generating device comprises a closed housing (1), a rotating shaft (2) rotatably arranged in the housing (1), and a power device (4). The housing (1) is provided with a water inlet (11) and an air inlet (12). The rotating shaft (2) is provided with an impeller (3). The power device (4) drives the rotating shaft (2) to rotate. The bubble water generating device has a power device that simulates the principle of a motor and has a miniaturized design, and is suitable for being installed inside a gas water heater for use.

Description

Technical Field

[0001] The present invention relates to the field of kitchen utensils, and in particular to a bubble water generating device and a water heater. Background Art

[0002] Sparkling water, used in gas water heaters, offers users a superior bathing experience. Sparkling water is produced by dissolving air in water to form tiny bubbles. Proper air and water pressures, along with sufficient contact between the air and water, are essential for achieving a successful sparkling water effect. Conventional sparkling water generators are large and unsuitable for installation inside gas water heaters. Summary of the Invention

[0003] The object of the present invention is to provide a bubble water generating device, which has a power device that simulates the principle of a motor and is miniaturized and suitable for installation inside a gas water heater.

[0004] Another object of the present invention is to provide a water heater.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a bubble water generating device is provided, comprising a closed shell, a rotating shaft rotatably disposed in the shell, and a power device. The shell is provided with a water inlet and an air inlet. An impeller is provided on the rotating shaft. The impeller is located at the upper portion of the rotating shaft, and the water inlet and the air inlet are located at the lower side of the impeller; the rotating shaft is a hollow structure, a fixed shaft is fixedly connected in the middle of the shell, the rotating shaft is sleeved on the fixed shaft, and rotates around the fixed shaft, thereby driving the impeller to rotate; the upper portion of the rotating shaft has an opening, and the lower portion of the rotating shaft is a bubble water output end. The bubble water overflows from the top of the rotating shaft and flows downward to output the prepared bubble water. The power device drives the rotating shaft to rotate.

[0007] According to one embodiment of the present invention, the power device includes a magnet and a coil, the magnet is fixed to the rotating shaft on the lower side of the impeller, and the coil is fixed to the outer side of the shell and is arranged around the magnet.

[0008] According to one embodiment of the present invention, the bubble water generating device further includes a Hall sensor for detecting the position of the magnet.

[0009] According to one embodiment of the present invention, the magnet is a rectangular parallelepiped magnet.

[0010] According to an embodiment of the present invention, the coil includes a first coil, a second coil, and a third coil that are evenly arranged at intervals of 120°.

[0011] According to an embodiment of the present invention, the Hall sensor includes a first Hall sensor provided on the first coil, a second Hall sensor provided on the second coil, and a third Hall sensor provided on the third coil.

[0012] According to one embodiment of the present invention, the bubble water generating device further includes an electric control board electrically connecting the first coil, the second coil and the third coil, and the electric control board controls the voltage switching of the first coil, the second coil and the third coil by identifying the position of the magnet.

[0013] According to one embodiment of the present invention, an electronic control circuit is provided on the electronic control board, the first coil is at the A-phase voltage, the second coil is at the B-phase voltage, and the third coil is at the C-phase voltage. The electronic control circuit switches the direction of the A-phase, B-phase, and C-phase voltages by turning on and off six MOS tubes.

[0014] According to an embodiment of the present invention, the MOS transistors include M1, M2, M3, M4, M5 and M6, wherein:

[0015] M1 and M4 form a bridge arm circuit for controlling the A-phase voltage, where R7 and R6 are the driving resistors of M1, R8 and R7 are the driving resistors of M4, and C1 is the filter capacitor;

[0016] M3 and M6 form a bridge arm circuit for controlling the B-phase voltage, where R7 and R7 are the driving resistors of M3, R8 and R8 are the driving resistors of M6, and C2 is the filter capacitor;

[0017] M2 and M5 form a bridge arm circuit for controlling the C-phase voltage, wherein R8 and R9 are driving resistors of M2, R7 and R8 are driving resistors of M5, and C3 is a filter capacitor.

[0018] According to another aspect of the present invention, a water heater is provided, comprising the aforementioned bubble water generating device.

[0019] An embodiment of the present invention has the following advantages or beneficial effects:

[0020] The present invention's bubbling water generating device comprises a sealed housing, a rotatable shaft disposed within the housing, an impeller mounted on the shaft, and a power unit that provides power to the shaft. The bubbling water generating device utilizes a power unit to agitate air and water. Its compact design makes it suitable for installation within a gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0022] Figure 1 is a schematic diagram of an impeller shaft according to an exemplary embodiment.

[0023] Figure 2 3 is a schematic structural diagram of a bubble water generating device according to an exemplary embodiment.

[0024] Figure 3 1 is an electrical control layout diagram of the bubble water generating device according to an exemplary embodiment.

[0025] Figure 4 1 is an electrical control timing diagram of the bubble water generating device according to an exemplary embodiment.

[0026] Figure 5 1 is an electric control circuit diagram of the bubble water generating device according to an exemplary embodiment.

[0027] The description of the accompanying drawings is as follows:

[0028] 1. Housing; 11. Water inlet; 12. Air inlet; 2. Rotating shaft; 3. Impeller; 4. Power unit; 41. Magnet; 42. Coil; 421. First coil; 422. Second coil; 423. Third coil; 5. Hall sensor; 51. First Hall sensor; 52. Second Hall sensor; 53. Third Hall sensor. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0030] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0031] like Figures 1 to 2 As shown, Figure 1 A schematic diagram of an impeller shaft provided by the present invention is shown. Figure 2 A structural schematic diagram of the bubble water generating device provided by the present invention is shown.

[0032] The bubble water generating device of the embodiment of the present invention includes a sealed housing 1, a rotating shaft 2 rotatably disposed within the housing 1, and a power unit 4. The housing 1 is provided with a water inlet 11 and an air inlet 12. The rotating shaft 2 is provided with an impeller 3. The power unit 4 drives the rotating shaft 2 to rotate.

[0033] Among them, the bubble water generating device is a closed device. A water inlet 11 and an air inlet 12 are provided on it to form bubble water by mixing gas and water. In order to better form bubble water, a rotating shaft 2 and an impeller 3 installed on the rotating shaft 2 are provided in the shell 1. The impeller 3 can rotate with the rotation of the rotating shaft 2. At the same time, a power device 4 is designed to provide power for the rotation of the rotating shaft 2. The impeller 3 is located on the upper part of the rotating shaft 2, the water inlet 11 and the air inlet 12 are located on the lower side of the impeller 3, and the power device 4 is located on the lower side of the water inlet 11 and the air inlet 12. The device has a simple structure and a small size. The size of the shell 1 can be designed to be 100 mm high and 60 mm in diameter, which is suitable for installation inside a gas water heater.

[0034] Preferably, the water inlet 11 and the air inlet 12 are arranged opposite to each other. The housing 1 has symmetrical openings on the left and right sides, with the water inlet 11 on the left and the air inlet 12 on the right. Both are provided with check valves to prevent water or gas from flowing back out of the housing 1. The water inlet 11 is connected to a water pipe to allow water to be pushed into the housing 1 by water pressure. The air inlet 12 is connected to an air pipe, which is connected to an external air pump to allow the air pump to pump external air into the housing 1.

[0035] Preferably, the rotating shaft 2 is hollow. A fixed shaft is fixedly connected to the center of the housing 1. The rotating shaft 2 is sleeved on the fixed shaft and can rotate around the fixed shaft, thereby driving the impeller 3 above. The upper portion of the rotating shaft 2 also has an opening, and the bubbling water overflows from the top of the rotating shaft 2 and flows downward to be discharged.

[0036] In a preferred embodiment of the present invention, the power device 4 includes a magnet 41 and a coil 42 . The magnet 41 is fixed to the rotating shaft 2 on the lower side of the impeller 3 , and the coil 42 is fixed to the outer side of the housing 1 and is arranged around the magnet 41 .

[0037] like Figure 1 and Figure 2 As shown, the power device 4 is a simple and compact device designed based on the principle of a simulated motor. The magnet 41 is equivalent to the rotor of the motor, and the coil 42 is equivalent to the stator of the motor.

[0038] In a preferred embodiment of the present invention, the bubble water generating device further includes a Hall sensor 5 for detecting the position of the magnet 41 .

[0039] like Figure 1 and Figure 2As shown, the Hall sensor 5 is fixed between the magnet 41 and the coil 42 , and is closer to the coil 42 .

[0040] In a preferred embodiment of the present invention, the magnet 41 is a rectangular parallelepiped magnet.

[0041] like Figure 1 and Figure 2 As shown, the magnet 41 is in the shape of an elongated strip and includes a north pole and a south pole.

[0042] Figure 3 An electrical control layout diagram of the bubble water generating device provided by the present invention is shown.

[0043] In a preferred embodiment of the present invention, the coil 42 includes a first coil 421 , a second coil 422 , and a third coil 423 that are evenly arranged at intervals of 120°.

[0044] like Figure 3 As shown, the first coil 421 , the second coil 422 and the third coil 423 are arranged at a 120° interval outside the housing 1 in the middle and lower part, forming a layout of three stators surrounding one rotor.

[0045] In a preferred embodiment of the present invention, the Hall sensor 5 includes a first Hall sensor 51 provided on the first coil 421 , a second Hall sensor 52 provided on the second coil 422 , and a third Hall sensor 53 provided on the third coil 423 .

[0046] like Figure 3 As shown, the first Hall sensor 51 is located between the first coil 421 and the magnet 41 and is close to the first coil 421. The second Hall sensor 52 is located between the second coil 422 and the magnet 41 and is close to the second coil 422. The third Hall sensor 53 is located between the third coil 423 and the magnet 41 and is close to the third coil 423.

[0047] Figure 4 An electronic control timing diagram of the bubble water generating device provided by the present invention is shown. Figure 5 Shown is an electric control circuit diagram of the bubble water generating device provided by the present invention.

[0048] In a preferred embodiment of the present invention, the bubble water generating device further includes an electronic control board electrically connected to the first coil 421, the second coil 422, and the third coil 423. The electronic control board controls the voltage switching of the first, second, and third coils 421, 422, 423 by identifying the position of the magnet 41. The electronic control board is equipped with an electronic control circuit. Phase A voltage is applied to the first coil 421, phase B voltage is applied to the second coil 422, and phase C voltage is applied to the third coil 423. The electronic control circuit switches the phase A, B, and C voltages by switching six MOS transistors on and off. The MOS tube includes M1, M2, M3, M4, M5 and M6, among which M1 and M4 form a bridge arm circuit for controlling the A-phase voltage, wherein R7 and R6 are the driving resistors of M1, R8 and R7 are the driving resistors of M4, and C1 is a filter capacitor; M3 and M6 form a bridge arm circuit for controlling the B-phase voltage, wherein R7 and R7 are the driving resistors of M3, R8 and R8 are the driving resistors of M6, and C2 is a filter capacitor; M2 and M5 form a bridge arm circuit for controlling the C-phase voltage, wherein R8 and R9 are the driving resistors of M2, R7 and R8 are the driving resistors of M5, and C3 is a filter capacitor.

[0049] like Figure 4 and Figure 5 As shown, according to the principle of force generated by energized coils, the electric control board controls the voltage direction of the first coil 421, the second coil 422 and the third coil 423 to exert torques in different directions on the magnet 41. Specifically, the voltage direction is positive on the left and negative on the right, and the voltage is switched in the order of AB, AC, BC, BA, CA, and CB. The resultant force is: Figure 4 In the direction of the middle arrow, when the north pole direction of the magnet 41 is not parallel to the direction of the resultant force, a torque will be generated on the rotor to drive the rotor to rotate. The above timing realizes the counterclockwise rotation of the magnet 41. The magnet 41 also drives the impeller 3 to rotate, thereby realizing the function of stirring water and air in the shell 1.

[0050] The voltage direction is switched by turning on and off the six MOS tubes. Taking the bridge arm circuit composed of M1 and M4 as an example, R7 and R6 are the driving resistors of M1, R8 and R7 are the driving resistors of M4, and C1 is the filter capacitor:

[0051] a. When the A-phase terminal needs to input +24V, A_contral1 inputs a high level and A_contral2 inputs a low level, then M1 is turned on and M4 is turned off, the voltage at point A is +24V, and the voltage at the A-phase terminal is +24V;

[0052] b. When the A-phase terminal needs to input 0V, A_contral1 inputs a low level and A_contral2 inputs a high level, then M1 is cut off and M4 is turned on, the ground voltage at point A is 0V, and the ground voltage at the A-phase terminal is also 0V.

[0053] c. Similarly, M3 and M6 control the voltage at the B-phase terminal, and M5 and M2 control the voltage at the C-phase terminal.

[0054] At this point, the circuit can apply torques in different directions to magnet 41 by applying different voltage directions to first coil 421, second coil 422, and third coil 423, causing magnet 41 to rotate. For example, if the A-phase terminal is connected to +24V and the C-phase terminal is connected to 0V, then A_contral1 and C_contral2 will be controlled to input a high level, while the remaining A_contral2, B_contral1, B_contral2, and C_contral1 will be controlled to input a low level.

[0055] The Hall sensors 5 are arranged at the positions of the first coil 421, the second coil 422, and the third coil 423. When the magnet 41 rotates 360°, the signals detected by the three Hall sensors are HA, HB, and HC, respectively. Thus, the electronic control board can identify the rotor position and control the voltage switching according to the rotor position. Specifically, (1 represents a high level, 0 represents a low level):

[0056]

[0057] The bubble water generating device of the present invention includes a power unit 4, which further includes a rotating magnet 41 and a fixed coil 42. The power unit 4 forms a power unit 4 that simulates the principle of a motor to achieve an air and water stirring device. Combined with an adjustable water pressure and air pressure device, the bubble water production function is realized. The bubble water generating device is designed with a corresponding electronic control circuit on the electronic control board. The electronic control circuit switches the voltage direction of phases A, B, and C by turning on and off six MOS tubes. The bubble water generating device is provided within a housing 1, with a rotating shaft 2 that can rotate under the drive of the power unit 4, and an impeller 3 is fixed on the upper portion of the rotating shaft 2 so that the impeller 3 rotates with the rotating shaft 2. The housing 1 has a water inlet 11 and an air inlet 12 disposed below the impeller 3. Water and gas are passed into the housing 1. Under the stirring action of the impeller 3, the gas and water mix to form small bubbles of water. The entire structure is miniaturized and suitable for installation inside a gas water heater.

[0058] A water heater according to an embodiment of the present invention includes the aforementioned bubble water generating device, which can be used to generate bubbles with very small diameters that are dissolved in water.

[0059] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0060] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0061] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A bubble water generating device, characterized in that: include: A closed shell (1), wherein the shell (1) is provided with a water inlet (11) and an air inlet (12); A rotating shaft (2) is rotatably arranged in the housing (1), an impeller (3) is arranged on the rotating shaft (2), the impeller (3) is located at the upper part of the rotating shaft (2), and the water inlet (11) and the air inlet (12) are located at the lower side of the impeller (3); the rotating shaft (2) is a hollow structure, a fixed shaft is fixedly connected in the middle of the housing (1), the rotating shaft (2) is sleeved on the fixed shaft and rotates around the fixed shaft, thereby driving the impeller (3) to rotate; the upper part of the rotating shaft (2) has an opening, and the bubble water overflows from the top of the rotating shaft (2) and flows downward, thereby outputting the prepared bubble water; as well as A power device (4), wherein the power device (4) drives the rotating shaft (2) to rotate.

2. The bubble water generating device according to claim 1, characterized in that: The power device (4) comprises a magnet (41) and a coil (42), wherein the magnet (41) is fixedly connected to the rotating shaft (2) at the lower side of the impeller (3), and the coil (42) is fixedly connected to the outer side of the housing (1) and is arranged around the magnet (41).

3. The bubble water generating device according to claim 2, characterized in that: Also includes: The Hall sensor (5) is used to detect the position of the magnet (41).

4. The bubble water generating device according to claim 2, characterized in that: The magnet (41) is a rectangular parallelepiped magnet.

5. The bubble water generating device according to claim 3, characterized in that: The coil (42) comprises a first coil (421), a second coil (422), and a third coil (423) which are evenly arranged at intervals of 120°.

6. The bubble water generating device according to claim 5, characterized in that: The Hall sensor (5) comprises a first Hall sensor (51) arranged on the first coil (421), a second Hall sensor (52) arranged on the second coil (422), and a third Hall sensor (53) arranged on the third coil (423).

7. The bubble water generating device according to claim 6, characterized in that: Also includes: An electric control board electrically connects the first coil (421), the second coil (422) and the third coil (423), and the electric control board controls voltage switching of the first coil (421), the second coil (422) and the third coil (423) by identifying the position of the magnet (41).

8. The bubble water generating device according to claim 7, characterized in that: An electric control circuit is provided on the electric control board, the first coil (421) has an A-phase voltage, the second coil (422) has a B-phase voltage, and the third coil (423) has a C-phase voltage. The electric control circuit switches the direction of the A-phase, B-phase, and C-phase voltages by switching six MOS tubes on and off.

9. The bubble water generating device according to claim 8, characterized in that: The MOS tubes include M1, M2, M3, M4, M5 and M6, wherein: M1 and M4 form a bridge arm circuit for controlling the A phase voltage, wherein R7 and R6 are driving resistors of M1, R8 and R7 are driving resistors of M4, and C1 is a filter capacitor; M3 and M6 form a bridge arm circuit for controlling the B phase voltage, wherein R7 and R7 are driving resistors of M3, R8 and R8 are driving resistors of M6, and C2 is a filter capacitor; M2 and M5 form a bridge arm circuit for controlling the C phase voltage, wherein R8 and R9 are driving resistors of M2, R7 and R8 are driving resistors of M5, and C3 is a filter capacitor.

10. A water heater, characterized in that: include: The bubble water generating device according to any one of claims 1 to 9.

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