Fan water pump assembly and gas water heating equipment

Abstract

The utility model discloses a fan water pump assembly and gas-fired water heating equipment, and relates to the technical field of gas-fired water heating equipment, the fan water pump assembly comprises a driving device, the driving device is provided with a first output end and a second output end which are used for outputting torque, the first output end is in driving connection with a wind wheel, and the second output end is in driving connection with a pump wheel; the volute is connected with the driving device, the volute and the driving device jointly define a fan cavity used for containing the wind wheel, the fan cavity is provided with an air inlet and an air outlet, and the wind wheel rotates to drive gas-phase fluid in the fan cavity to flow from the air inlet to the air outlet; the pump shell is connected with the driving device, the pump shell and the driving device jointly define a pump cavity used for containing the pump wheel, the pump cavity is provided with a liquid inlet and a liquid outlet, and the pump wheel rotates to drive liquid-phase fluid in the pump cavity to flow from the liquid inlet to the liquid outlet. According to the technical scheme provided by the utility model, the functions of the fan and the water pump can be integrated, the cost is reduced, the structural compactness is improved, the size is reduced, and the mounting space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heating equipment, and particularly relates to a fan-water pump assembly and a gas water heating equipment. Background Art

[0002] Fans and water pumps are common components in industry for providing power for fluid transportation. For example, in gas water heating equipment, a fan for driving the flow of gaseous fluid and a water pump for driving the flow of liquid fluid are usually provided. However, fans and water pumps are usually set independently and require a set of driving devices respectively, resulting in a relatively high overall cost. In addition, the separate setting of fans and water pumps makes the overall structure less compact and occupies a relatively large installation space. Summary of the Utility Model

[0003] The main object of the utility model is to provide a fan-water pump assembly and a gas water heating equipment, aiming to integrate the functions of a fan and a water pump into one, reduce costs, improve the structural compactness, reduce the volume and save the installation space.

[0004] To achieve the above object, the fan-water pump assembly proposed by the utility model includes:

[0005] A driving device having a first output end and a second output end for outputting torque, the first output end being drivingly connected to a wind wheel, and the second output end being drivingly connected to a pump wheel;

[0006] A volute casing connected to the driving device, the volute casing and the driving device jointly enclosing a fan chamber for accommodating the wind wheel, the fan chamber having an air inlet and an air outlet, and the wind wheel rotating to drive the gaseous fluid in the fan chamber to flow from the air inlet to the air outlet; and

[0007] A pump casing connected to the driving device, the pump casing and the driving device jointly enclosing a pump chamber for accommodating the pump wheel, the pump chamber having a liquid inlet and a liquid outlet, and the pump wheel rotating to drive the liquid fluid in the pump chamber to flow from the liquid inlet to the liquid outlet.

[0008] In one embodiment, the first output end and the second output end are configured to output torque independently to drive the wind wheel and the pump wheel to rotate independently;

[0009] Alternatively, the first output end and the second output end are configured to output torque synchronously to make the wind wheel and the pump wheel rotate synchronously.

[0010] In one embodiment, the rotational speed of the wind wheel is n1, and the rotational speed of the pump wheel is n2, wherein the ratio of n1 to n2 is a fixed constant.

[0011] In one embodiment, the wind wheel is a centrifugal wind wheel; and / or, the wind wheel includes at least two layers of impellers arranged axially.

[0012] In one embodiment, the driving device includes a housing and a driving assembly disposed within the housing. The driving assembly has the first output end and the second output end. The housing has a first end face and a second end face that are opposite to each other along the axis of the wind wheel. The volute and the first end face jointly enclose to form the blower cavity, and the pump housing and the second end face jointly enclose to form the pump cavity.

[0013] In one embodiment, the first output end extends out of the first end face to be directly drivingly connected to the wind wheel, and power is transmitted between the second output end and the pump impeller through a non-contact transmission assembly.

[0014] In one embodiment, the driving assembly includes a stator, a first rotor, and a second rotor. The first rotor defines the first output end, and the second rotor defines the second output end. The stator and the first rotor jointly define a first magnetic circuit to drive the first rotor to rotate, and the stator and the second rotor jointly define a second magnetic circuit to drive the second rotor to rotate;

[0015] Alternatively, the driving assembly includes a rotor, a stator, and an output shaft. The rotor is sleeved around the output shaft and can drive the output shaft to rotate together. Both ends of the output shaft respectively form the first output end and the second output end. The wind wheel and the pump impeller are respectively connected to both ends of the output shaft. The stator is sleeved around the rotor and defines a magnetic circuit with the rotor to drive the rotor to rotate.

[0016] In one embodiment, the housing includes an end plate and a housing body disposed on one side of the end plate. The end plate protrudes from the outer peripheral surface of the housing body. The driving assembly is installed within the housing body. The side of the end plate facing away from the housing body forms the first end face, and the side of the housing body facing away from the end plate forms the second end face. The volute has an opening facing the end plate, and the end plate covers the opening. The air inlet is provided on the side of the volute facing away from the end plate, and the air outlet is provided on the circumferential side of the volute.

[0017] In one embodiment, the end plate and the housing body are integrally formed; and / or, ribs are provided on the side of the end plate facing away from the first end face.

[0018] The present utility model further provides a gas water heating device, including:

[0019] A main body, the main body having a gas path system and a water path system; and

[0020] The fan and water pump assembly as described above is installed on the main body. The fan cavity of the fan and water pump assembly is communicated with the gas path system, and the pump cavity of the fan and water pump assembly is communicated with the water path system.

[0021] In the technical solution of the present utility model, the fan and water pump assembly drives the wind wheel to rotate through the first output end of the driving device. When the wind wheel rotates, it can do work on the gas-phase fluid in the fan cavity to drive the gas-phase fluid to flow from the air inlet to the air outlet at a preset flow rate, thereby realizing the fan function; the pump wheel is driven to rotate through the second output end of the driving device. When the pump wheel rotates, it can do work on the liquid-phase fluid in the pump cavity to drive the liquid-phase fluid to flow from the liquid inlet to the liquid outlet at a preset flow rate, thereby realizing the water pump function. In this way, the fan function and the water pump function can be integrated into one. The wind wheel and the pump wheel share a set of driving devices, which can reduce costs. And compared with the separately arranged fan and water pump, the overall structure of the fan and water pump assembly is more compact, with a higher integration level and a smaller overall volume, which can save the installation space. In addition, the fan cavity is formed by the common enclosure of the volute and the driving device, and the volute cover plate can be omitted. The pump cavity is formed by the common enclosure of the pump housing and the driving device, and the pump housing cover plate can be omitted, which is beneficial to saving materials, thereby further reducing costs, reducing the volume of the fan and water pump assembly, and saving the installation space. In addition, the fan and water pump assembly shares a set of driving devices. When cold water passes through the pump cavity, it can cool the driving device, which is beneficial to reducing the temperature rise of the driving device and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the fan and water pump assembly provided by the present utility model;

[0024] Figure 2 For Figure 1 a schematic structural diagram of the fan and water pump assembly from another perspective in

[0025] Figure 3 For Figure 1 a schematic exploded structural diagram of the fan and water pump assembly in

[0026] Figure 4 It is a schematic sectional structural diagram of an embodiment of the fan and water pump assembly provided by the present utility model;

[0027] Figure 5Schematic cross-sectional structure diagram of another embodiment of the fan and pump assembly provided by the present utility model;

[0028] Figure 6 Schematic structure diagram of an embodiment of the gas water heating equipment provided by the present utility model.

[0029] Explanation of the reference numerals in the attached drawings:

[0030] 1000, gas water heating equipment;

[0031] 100, fan and pump assembly; 10, driving device; 101, first output end; 102, second output end; 11, housing; 111, end plate; 112, housing body; 113, rib; 12, driving component; 120, rotor; 121, stator; 122, first rotor; 1221, rotor housing; 1222, first rotating shaft; 1223, first magnetic ring; 123, second rotor; 1231, bushing; 1232, second rotating shaft; 1233, second magnetic ring; 124, shielding cover; 125, fixed shaft; 126, bearing; 127, output shaft; 20, wind wheel; 30, pump wheel; 40, volute; 401, fan cavity; 402, air inlet; 403, air outlet; 50, pump housing; 501, pump cavity; 502, liquid inlet; 503, liquid outlet; 200, main body.

[0032] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] Fans and water pumps are common components in industry for providing power for fluid transportation. For example, in gas water heating equipment, a fan for driving the flow of gaseous fluid and a water pump for driving the flow of liquid fluid are usually provided. However, fans and water pumps are usually set independently and require a separate set of driving devices to be configured respectively, resulting in a relatively high overall cost. In addition, the separate setting of fans and water pumps makes the overall structure less compact and occupies a relatively large installation space.

[0037] The present utility model provides a fan-water pump assembly 100, which can integrate the functions of a fan and a water pump, reduce costs, improve structural compactness, reduce volume, and save installation space.

[0038] Please refer to Figures 1 to 4 , in an embodiment of the present utility model, the fan-water pump assembly 100 includes a driving device 10, a volute 40, and a pump casing 50. The driving device 10 has a first output end 101 and a second output end 102 for outputting torque. The first output end 101 is drivingly connected to a wind wheel 20, and the second output end 102 is drivingly connected to a pump impeller 30. The volute 40 is connected to the driving device 10, and the volute 40 and the driving device 10 jointly enclose a fan chamber 401 for accommodating the wind wheel 20. The fan chamber 401 has an air inlet 402 and an air outlet 403. The wind wheel 20 rotates to drive the gaseous fluid in the fan chamber 401 to flow from the air inlet 402 to the air outlet 403. The pump casing 50 is connected to the driving device 10, and the pump casing 50 and the driving device 10 jointly enclose a pump chamber 501 for accommodating the pump impeller 30. The pump chamber 501 has a liquid inlet 502 and a liquid outlet 503. The pump impeller 30 rotates to drive the liquid fluid in the pump chamber 501 to flow from the liquid inlet 502 to the liquid outlet 503.

[0039] In this embodiment, the driving device 10 has at least a first output end 101 and a second output end 102 capable of torque output. Among them, the first output end 101 and the second output end 102 can be configured to output torque synchronously, or can also be configured to output torque independently of each other. The first output end 101 can be directly drivingly connected to the wind wheel 20, or the first output end 101 and the wind wheel 20 can be indirectly drivingly connected through a transmission structure; the second output end 102 can be directly drivingly connected to the pump wheel 30, or the second output end 102 and the pump wheel 30 can be indirectly drivingly connected through a transmission structure. Contact power transmission or non-contact power transmission can be adopted between the first output end 101 and the wind wheel 20. Contact power transmission or non-contact power transmission can be adopted between the second output end 102 and the pump wheel 30. The fan chamber 401 has an air inlet 402 and an air outlet 403, and the pump chamber 501 has a liquid inlet 502 and a liquid outlet 503. Among them, the number of the air inlet 402, the air outlet 403, the liquid inlet 502, and the liquid outlet 503 can be one, two, or more.

[0040] When the driving device 10 works, it generates power and outputs torque through the first output end 101 to transmit the power to the wind wheel 20, thereby driving the wind wheel 20 to rotate at a certain speed. When the wind wheel 20 rotates, it can do work on the gas-phase fluid in the fan chamber 401 to drive the gas-phase fluid to flow from the air inlet 402 to the air outlet 403 at a preset flow rate, so as to realize the fan function; it outputs torque through the second output end 102 to transmit the power to the pump wheel 30, thereby driving the pump wheel 30 to rotate at a certain speed. When the pump wheel 30 rotates, it can do work on the liquid-phase fluid in the pump chamber 501 to drive the liquid-phase fluid to flow from the liquid inlet 502 to the liquid outlet 503 at a preset flow rate, so as to realize the water pump function. Among them, the fan chamber 401 is jointly enclosed by the volute 40 and the driving device 10, that is, the volute 40 has an opening facing the driving device 10. When the volute 40 and the driving device 10 are assembled in place, one side end face of the driving device 10 can act as the cover of the volute 40 to cover the opening of the volute 40, so that the cover of the volute 40 can be omitted, which is beneficial to saving materials, reducing costs, and reducing the volume of the fan and water pump assembly 100. The pump chamber 501 is jointly enclosed by the pump casing 50 and the driving device 10, that is, the pump casing 50 has an opening facing the driving device 10. When the pump casing 50 and the driving device 10 are assembled in place, the other side end face of the driving device 10 can act as the cover of the pump casing 50 to cover the opening of the pump casing 50, so that the cover of the pump casing 50 can be omitted, which is beneficial to saving materials, reducing costs, and reducing the volume of the fan and water pump assembly 100. Optionally, a sealing structure is provided at the connection part between the pump casing 50 and the driving device 10 to ensure the sealing performance of the pump chamber 501. Among them, the driving device 10 includes but is not limited to a double-rotor single-stator 121 motor, a double-rotor double-stator 121 motor, etc.

[0041] As Figure 6 shown, the fan and water pump assembly 100 can be applied to the gas hot water equipment 1000. Among them, the gas hot water equipment 1000 includes, but is not limited to, gas water heaters, gas heating furnaces, etc. The gas hot water equipment 1000 includes a main body 200 and a fan and water pump assembly 100 installed on the main body 200. The main body 200 has an air path system for the flow of gas (such as gas or high-temperature flue gas generated after combustion) and a water path system for the passage of liquid. The fan chamber 401 of the fan and water pump assembly 100 can communicate with the air path system, and the pump chamber 501 of the fan and water pump assembly 100 can communicate with the water path system. When the fan and water pump assembly 100 works, the wind wheel 20 rotates to do work on the gas in the fan chamber 401 to realize the fan function, and then can drive the gas to flow along the air path system. The pump wheel 30 rotates to do work on the liquid in the pump chamber 501 to realize the water pump function, and then can drive the liquid to flow along the water path system. Among them, the gas hot water equipment 1000 can be a forced-draft type gas hot water equipment 1000 or an induced-draft type gas hot water equipment 1000. In the forced-draft type gas hot water equipment 1000, the air outlet 403 of the fan chamber 401 can be communicated with the inlet end of the air path system to realize the blower function; in the induced-draft type gas hot water equipment 1000, the air inlet 402 of the fan chamber 401 can be communicated with the outlet end of the air path system to realize the exhaust fan function.

[0042] The fan and water pump assembly 100 of the technical solution of the present utility model drives the wind wheel 20 to rotate through the first output end 101 of the driving device 10. When the wind wheel 20 rotates, it can do work on the gas-phase fluid in the fan chamber 401 to drive the gas-phase fluid to flow from the air inlet 402 to the air outlet 403 at a preset flow rate, so as to realize the fan function; the pump wheel 30 is driven to rotate through the second output end 102 of the driving device 10. When the pump wheel 30 rotates, it can do work on the liquid-phase fluid in the pump chamber 501 to drive the liquid-phase fluid to flow from the liquid inlet 502 to the liquid outlet 503 at a preset flow rate, so as to realize the water pump function; in this way, the fan function and the water pump function can be integrated into one. The wind wheel 20 and the pump wheel 30 share a set of driving device 10, which can reduce costs. And compared with the separately arranged fan and water pump, the overall structure of the fan and water pump assembly 100 is more compact, the integration degree is higher, and the overall volume is smaller, which can save the installation space. In addition, the fan chamber 401 is jointly enclosed by the volute 40 and the driving device 10, and the volute 40 cover plate can be omitted. The pump chamber 501 is jointly enclosed by the pump housing 50 and the driving device 10, and the pump housing 50 cover plate can be omitted, which is beneficial to saving materials, thus being beneficial to further reducing costs, reducing the volume of the fan and water pump assembly 100, and saving the installation space. In addition, the fan and water pump assembly 100 shares a set of driving device 10, and when cold water passes through the pump chamber 501, it can cool the driving device 10, which is beneficial to reducing the temperature rise of the driving device 10 and improving the service life.

[0043] When the fan and pump assembly 100 is applied to the gas water heating equipment 1000, only one set of driving devices 10 needs to be configured to realize the functions of both the fan and the pump, which can reduce the cost of the gas water heating equipment 1000; moreover, the integration degree of the fan and pump assembly 100 is higher, the number of driving devices 10 is reduced, the internal installation space of the gas water heating equipment 1000 can be saved, which is beneficial to reducing the volume of the gas water heating equipment 1000 and making more installation space available inside the gas water heating equipment 1000 for installing other expansion function modules. And when assembling the gas water heating equipment 1000, only the fan and pump assembly 100 needs to be installed on the main body 200 at one time, which can simplify the installation steps and thus improve the assembly efficiency of the gas water heating equipment 1000.

[0044] In one embodiment, the first output end 101 and the second output end 102 are configured to output torque independently to drive the wind wheel 20 and the pump wheel 30 to rotate independently.

[0045] In this embodiment, the first output end 101 and the second output end 102 are configured to be able to output torque independently of each other, that is, the torques output by the first output end 101 and the second output end 102 are independent of each other and not interfered with. For example, the first output end 101 and the second output end 102 can output torques of the same magnitude or different magnitudes; for another example, the first output end 101 and the second output end 102 can output torques simultaneously, or one of them can output torque while the other does not work. It can be understood that the torques output by the first output end 101 and the second output end 102 are independent of each other, so that the wind wheel 20 and the pump wheel 30 can operate independently of each other. For example, the wind wheel 20 and the pump wheel 30 can rotate synchronously or non-synchronously, and for another example, the rotational speeds of the wind wheel 20 and the pump wheel 30 can be the same or different; thus, it can better adapt to different working conditions.

[0046] In one embodiment, the first output end 101 and the second output end 102 are configured to output torque synchronously to make the wind wheel 20 and the pump wheel 30 rotate synchronously. In this way, when the fan and pump assembly 100 operates, the driving device 10 can drive the wind wheel 20 and the pump wheel 30 to rotate at the same rotational speed simultaneously to realize the functions of the fan and the pump at the same time.

[0047] In one embodiment, the rotational speed of the wind wheel 20 is n1 and the rotational speed of the pump wheel 30 is n2, wherein the ratio of n1 to n2 is a fixed constant. In this way, the rotational speed ratio of the wind wheel 20 and the pump wheel 30 is always kept fixed to better adapt to a specific application scenario. The fixed constant can be set according to the actual application scenario needs, for example, it can be 1, 2, 3, etc., and no specific limitation is made here.

[0048] Optionally, the wind wheel 20 is a centrifugal wind wheel 20, which can provide a relatively large air volume and wind force with lower energy consumption, is more energy-efficient, has a stable structure, and generates less noise. Optionally, the wind wheel 20 includes at least two layers of impellers arranged axially. The wind wheel 20 having at least two layers of impellers is beneficial to improving the aerodynamic performance, reducing the noise, and increasing the work efficiency. Optionally, the wind wheel 20 is a centrifugal wind wheel 20 having at least two layers of impellers.

[0049] Based on the above embodiments, as Figure 4 shown, in one embodiment, the driving device 10 includes a housing 11 and a driving assembly 12 disposed in the housing 11. The driving assembly 12 has a first output end 101 and a second output end 102. The housing 11 has a first end face and a second end face opposite to each other along the axis of the wind wheel 20. The volute 40 and the first end face jointly enclose a blower chamber 401, and the pump housing 50 and the second end face jointly enclose a pump chamber 501.

[0050] In this embodiment, the volute 40 and the pump housing 50 are respectively assembled to the opposite two end faces of the driving assembly 12, so that the blower chamber 401 and the pump chamber 501 are respectively located on the opposite sides of the driving assembly 12, and the overall structure is more compact, which is convenient for the two output ends of the driving assembly 12 to be respectively drivingly matched with the wind wheel 20 and the pump wheel 30.

[0051] In one embodiment, the first output end 101 passes through the first end face to be directly drivingly connected to the wind wheel 20, and power is transmitted between the second output end 102 and the pump wheel 30 through a non-contact transmission assembly.

[0052] Considering that the wind wheel 20 is larger and heavier than the pump wheel 30, optionally, the first output end 101 passes through the first end face to be directly drivingly connected to the wind wheel 20. In this way, the wind wheel 20 can be directly driven to rotate by the first output end 101, and the power transmission can be more stable, making the rotation of the wind wheel 20 more stable and reliable. In addition, considering that the pump wheel 30 will contact the liquid in the pump chamber 501, in order to prevent the liquid from entering the driving assembly 12, optionally, power is transmitted between the second output end 102 and the pump wheel 30 through a non-contact transmission assembly. In this way, the second output end 102 of the driving assembly 12 and the pump wheel 30 can be separated by a partition, improving the sealing performance of the pump chamber 501, and at the same time preventing the liquid from entering the driving assembly 12 and affecting the service life. Among them, the non-contact transmission assembly includes but is not limited to magnetic coupling, electromagnetic induction transmission, capacitive coupling transmission, etc.

[0053] Optionally, the non-contact transmission component includes a first magnetic member disposed at the second output end 102 and a second magnetic member disposed at the pump wheel 30. The first magnetic member and the second magnetic member are driven by magnetic coupling. When the second output end 102 rotates, it can drive the first magnetic member to rotate. The first magnetic member drives the second magnetic member to rotate through magnetic force, and then drives the pump wheel 30 to rotate. In this way, non-contact transmission between the second output shaft and the pump wheel 30 can be achieved.

[0054] As Figure 4 As shown, in an embodiment, the drive assembly 12 includes a stator 121, a first rotor 122, and a second rotor 123. The first rotor 122 defines a first output end 101, and the second rotor 123 defines a second output end 102. The stator 121 and the first rotor 122 jointly define a first magnetic circuit to drive the first rotor 122 to rotate, and the stator 121 and the second rotor 123 jointly define a second magnetic circuit to drive the second rotor 123 to rotate.

[0055] In this embodiment, the drive device 10 can specifically adopt a dual-rotor motor. The two rotors of the dual-rotor motor are respectively drivingly connected to the wind wheel 20 and the pump wheel 30. In this way, only one set of electronic control system is needed to control the operation of the dual-rotor motor, and the wind wheel 20 and the pump wheel 30 can be driven to rotate by the dual-rotor motor. The drive assembly 12 includes a stator 121, a first rotor 122, and a second rotor 123. Among them, the first rotor 122 and the second rotor 123 can be arranged radially along the stator 121, or the first rotor 122 and the second rotor 123 are arranged axially along the stator 121. The stator 121 and the first rotor 122 form a first magnetic circuit through an air gap. After the coil winding of the stator 121 is energized, the first rotor 122 can be driven to rotate through the magnetic field of the first magnetic circuit, and then the wind wheel 20 is driven to rotate by the first rotor 122. The stator 121 and the second rotor 123 form a second magnetic circuit through an air gap. After the coil winding of the stator 121 is energized, the second rotor 123 can be driven to rotate through the magnetic field of the second magnetic circuit, and then the pump wheel 30 is driven to rotate by the second rotor 123. The first rotor 122 and the second rotor 123 share a stator 121. Compared with a dual-stator 121 dual-rotor motor, one stator 121 can be omitted, the overall structure is simpler, the cost is lower, and the volume is smaller.

[0056] As Figure 4As shown, in one embodiment, the stator 121 includes a stator core, a first winding coil and a second winding coil wound around the stator core. The first winding coil is drivingly engaged with the first rotor 122, and the second winding coil is drivingly engaged with the second rotor 123. The first winding coil and the second winding coil are respectively controlled by different circuits, and can realize the independent driving of the first rotor 122 and the second rotor 123 to realize the independent rotation of the fan and the impeller 30. Optionally, the stator 121 further includes an insulation system covering the surface of the stator core. The winding coil and the stator core can be separated by the insulation system to avoid scratching the winding coil or the risk of short circuit. Among them, the insulation system can be realized by spraying an insulating layer on the surface of the stator core, or by assembling an insulating skeleton outside the stator core.

[0057] As Figure 4 shown, in one embodiment, the stator 121 is annularly arranged, the first rotor 122 is disposed around the periphery of the stator 121, and the second rotor 123 is disposed in the inner cavity of the stator 121. In this embodiment, the first rotor 122 is an outer rotor rotatably sleeved around the periphery of the stator 121, and the second rotor 123 is an inner rotor rotatably disposed in the inner cavity of the stator 121. Thus, the first rotor 122 and the second rotor 123 are arranged radially along the stator 121, and the overall arrangement structure is simple, which is beneficial to reducing the axial dimension of the driving device 10, and further reducing the volume of the fan and water pump assembly 100.

[0058] As Figure 4 shown, in one embodiment, the drive assembly 12 further includes a shielding cover 124. The stator 121 is sleeved around the periphery of the shielding cover 124. The first rotor 122 is sleeved around the periphery of the stator 121 and is rotatably connected to the shielding cover 124. The second rotor 123 is rotatably installed in the shielding cover 124. In this embodiment, the shielding cover 124 can serve as an installation carrier for the stator 121, the first rotor 122 and the second rotor 123, facilitating the installation of the three. Moreover, by providing the shielding cover 124, the second rotor 123 can be separated from the stator 121, playing a role of dry-wet isolation to prevent the water in the pump chamber 501 from entering the stator 121 to ensure the safety of the drive device 10. The stator 121 and the shielding cover 124 can be fixed by potting (such as potting epoxy resin material) or BMC injection molding.

[0059] As Figure 4As shown, in one embodiment, the shielding cover 124 is provided with a bearing 126. The first rotor 122 includes a rotor housing 1221, a first magnetic ring 1223, and a first rotating shaft 1222. The rotor housing 1221 is sleeved on the periphery of the stator 121. The first magnetic ring 1223 is fixed on the inner peripheral surface of the rotor housing 1221 and is disposed opposite to the stator 121. One end of the first rotating shaft 1222 is connected to the bearing 126, and the other end is connected to the rotor housing 1221. The wind wheel 20 is connected to the rotor housing 1221. In this embodiment, the first magnetic ring 1223 can be fixed to the inner peripheral surface of the rotor housing 1221 by means such as gluing or connection with fasteners. One end of the first rotating shaft 1222 is connected to the bearing 126 in the first accommodating cavity, and the other end of the first rotating shaft 1222 can be connected and fixed to the rotor housing 1221 by means such as connection with fasteners or interference fit. The bearing 126 can stably support the first rotor 122 to ensure the stability of the rotation of the first rotor 122. The wind wheel 20 and the rotor housing 1221 can be integrally formed or can be a split structure and then assembled and fixed.

[0060] As Figure 4 shown, in one embodiment, the driving device 12 further includes a fixed shaft 125. One end of the fixed shaft 125 is connected to the pump housing 50, and the other end is connected to the shielding cover 124. The second rotor 123 includes a shaft sleeve 1231, a second rotating shaft 1232, and a second magnetic ring 1233 that are sleeved on the periphery of the fixed shaft 125 in sequence from the inside to the outside. The second rotating shaft 1232 is connected to the pump impeller 30. In this embodiment, the fixed shaft 125 remains fixed relative to the shielding cover 124 and the pump housing 50. The shaft sleeve 1231 is rotatably sleeved on the periphery of the fixed shaft 125. The second rotating shaft 1232 is fixed on the periphery of the shaft sleeve 1231. The second magnetic ring 1233 is fixed on the periphery of the second rotating shaft 1232. A second magnetic circuit is formed between the second magnetic ring 1233 and the stator 121 assembly through an air gap. The magnetic field in the second magnetic circuit drives the second magnetic ring 1233 to rotate, and then drives the second rotating shaft 1232 to rotate through the second magnetic ring 1233, and drives the pump impeller 30 to rotate through the second rotating shaft 1232, thereby realizing the water pump function.

[0061] As Figure 5 shown, in another embodiment, the driving assembly 12 includes a rotor 120, a stator 121, and an output shaft 127. The rotor 120 is sleeved on the periphery of the output shaft 127 and can drive the output shaft 127 to rotate together. Both ends of the output shaft 127 respectively form a first output end 101 and a second output end 102. The wind wheel 20 and the pump impeller 30 are respectively connected to both ends of the output shaft 127. The stator 121 is sleeved on the periphery of the rotor 120 and forms a magnetic circuit with the rotor 120 to drive the rotor 120 to rotate.

[0062] In this embodiment, the stator 121 is fixed within the housing 11. For example, the stator 121 can be assembled within the cavity of the housing 11, or the stator 121 can be integrally overmolded within the wall of the housing 11. The stator 121 may include a stator core and a winding coil disposed on the stator core. The winding coil is energized to drive the rotor 120 to rotate. Optionally, the stator 121 further includes an insulation system coated on the surface of the stator core. Through the insulation system, the winding coil can be separated from the stator core to avoid scratching the winding coil or the risk of short circuit. Among them, the insulation system can be realized by spraying an insulating layer on the surface of the stator core, or by assembling an insulating skeleton outside the stator core. The rotor 120 is received within the inner cavity of the stator 121. The output shaft 127 passes through the central position of the rotor 120. Both ends of the output shaft 127 respectively extend out of both sides of the housing 11. One end of the output shaft 127 close to the volute 40 forms a first output end 101 to connect to the wind wheel 20, and one end of the output shaft 127 close to the pump housing 50 forms a second output end 102 to connect to the pump impeller 30. When the coil winding of the stator 121 is energized, it can drive the rotor 120 to rotate. The rotation of the rotor 120 can drive the output shaft 127 to rotate together, so as to drive the wind wheel 20 and the pump impeller 30 to rotate synchronously through the output shaft 127. At this time, the wind wheel 20 and the pump impeller 30 can rotate simultaneously, in the same direction, and at the same speed.

[0063] As Figure 2 and Figure 4 shown, in one embodiment, the housing 11 includes an end plate 111 and a housing body 112 disposed on one side of the end plate 111. The end plate 111 protrudes from the outer peripheral surface of the housing body 112. The drive assembly 12 is installed within the housing body 112. One side of the end plate 111 facing away from the housing body 112 forms a first end face, and one side of the housing body 112 facing away from the end plate 111 forms a second end face. The volute 40 has an opening facing the end plate 111, and the end plate 111 covers the opening. An air inlet 402 is provided on the side of the volute 40 facing away from the end plate 111, and an air outlet 403 is provided on the circumferential side of the volute 40.

[0064] In this embodiment, the installation and fixation of the drive assembly 12 can be realized through the housing body 112 of the housing 11. The blower cavity 401 is formed by jointly enclosing the end plate 111 of the housing 11 and the volute 40. The wind wheel 20 can specifically be a centrifugal wind wheel 20 disposed within the blower cavity 401. When the wind wheel 20 rotates, the air flow is sucked into the blower cavity 401 along the axial direction of the wind wheel 20 from the air inlet 402, and then blown out from the air outlet 403 on the circumferential side of the volute 40 under the action of centrifugal force. To simplify the manufacturing process of the housing 11, optionally, the end plate 111 and the housing body 112 are integrally formed. For example, the end plate 111 and the housing body 112 can be integrally injection molded. Optionally, a rib 113 is provided on the side of the end plate 111 facing away from the first end face. By providing the rib 113, the structural strength can be enhanced, and at the same time, it is beneficial to dissipate heat from the driving device 10.

[0065] As Figure 6 shown, the present utility model further provides a gas hot water device 1000, which includes a main body 200 and a fan and water pump assembly 100. The main body 200 has a gas path system and a water path system; the fan and water pump assembly 100 is installed on the main body 200. The fan cavity 401 of the fan and water pump assembly 100 is communicated with the gas path system, and the pump cavity 501 of the fan and water pump assembly 100 is communicated with the water path system. The specific structure of the fan and water pump assembly 100 refers to the above embodiments. Since the gas hot water device 1000 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0066] Among them, the gas hot water device 1000 includes, but is not limited to, gas water heaters, gas heating furnaces, etc. The gas hot water device 1000 includes, but is not limited to, forced draft type gas hot water devices 1000 and forced exhaust type gas hot water devices 1000.

[0067] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A fan and water pump assembly, characterized in that, Comprising: A driving device having a first output end and a second output end for outputting torque, the first output end being drivingly connected to a wind wheel, and the second output end being drivingly connected to a pump wheel; A volute casing connected to the driving device, the volute casing and the driving device jointly enclosing a blower cavity for accommodating the wind wheel, the blower cavity having an air inlet and an air outlet, and the wind wheel rotating to drive the gas-phase fluid in the blower cavity to flow from the air inlet to the air outlet; And A pump casing connected to the driving device, the pump casing and the driving device jointly enclosing a pump cavity for accommodating the pump wheel, the pump cavity having a liquid inlet and a liquid outlet, and the pump wheel rotating to drive the liquid-phase fluid in the pump cavity to flow from the liquid inlet to the liquid outlet.

2. The fan and water pump assembly according to claim 1, characterized in that, The first output end and the second output end are configured to output torque independently to drive the wind wheel and the pump wheel to rotate independently; Alternatively, the first output end and the second output end are configured to output torque synchronously to enable the wind wheel and the pump wheel to rotate synchronously.

3. The fan and water pump assembly according to claim 2, characterized in that, The rotational speed of the wind wheel is n1, and the rotational speed of the pump wheel is n2, where the ratio of n1 to n2 is a fixed constant.

4. The blower and water pump assembly according to claim 1, characterized in that, The wind wheel is a centrifugal wind wheel; and / or, the wind wheel includes at least two layers of impellers arranged axially.

5. The fan and water pump assembly according to any one of claims 1 to 4, characterized in that, The driving device includes a housing and a driving assembly disposed within the housing, the driving assembly having the first output end and the second output end, the housing having a first end face and a second end face axially opposite to each other along the wind wheel, the volute casing and the first end face jointly enclosing the blower cavity, and the pump casing and the second end face jointly enclosing the pump cavity.

6. The blower and water pump assembly according to claim 5, characterized in that, The first output end extends out of the first end face to be directly drivingly connected to the wind wheel, and power is transmitted between the second output end and the pump wheel through a non-contact transmission assembly.

7. The blower and water pump assembly according to claim 5, characterized in that The driving assembly includes a stator, a first rotor, and a second rotor, the first rotor defining the first output end, the second rotor defining the second output end, the stator and the first rotor jointly defining a first magnetic circuit to drive the first rotor to rotate, and the stator and the second rotor jointly defining a second magnetic circuit to drive the second rotor to rotate; Alternatively, the driving assembly includes a rotor, a stator, and an output shaft, the rotor being sleeved around the output shaft and capable of driving the output shaft to rotate together, the two ends of the output shaft respectively forming the first output end and the second output end, the wind wheel and the pump wheel being respectively connected to the two ends of the output shaft, and the stator being sleeved around the rotor and jointly defining a magnetic circuit with the rotor to drive the rotor to rotate.

8. The fan and pump assembly according to claim 5, characterized in that, The housing includes an end plate and a housing body provided on one side of the end plate. The end plate protrudes from the outer peripheral surface of the housing body. The drive assembly is installed in the housing body. The side of the end plate facing away from the housing body forms the first end face, and the side of the housing body facing away from the end plate forms the second end face. The volute has an opening facing the end plate, and the end plate covers the opening. An air inlet is provided on the side of the volute facing away from the end plate, and an air outlet is provided on the circumferential side of the volute.

9. The blower and water pump assembly according to claim 8, characterized in that, The end plate and the housing body are integrally formed; and / or, ribs are provided on the side of the end plate facing away from the first end face.

10. A gas water heating device, characterized in that, Comprising: A main body, which has an air path system and a water path system; And A fan and water pump assembly according to any one of claims 1 to 9, installed on the main body, the fan cavity of the fan and water pump assembly communicating with the air path system, and the pump cavity of the fan and water pump assembly communicating with the water path system.

Images