Self-powered device of gas water heater and gas water heater system

Abstract

The utility model discloses a gas water heater self-powered device and a gas water heater system, the gas water heater self-powered device comprises a shell, a rotating blade assembly, a magnet assembly and a coil assembly, the shell is of a hollow cavity structure with two open ends, and the rotating blade assembly comprises a pipe body and an impeller part; the pipe body is rotatably and coaxially arranged in the cavity of the shell through a bearing assembly, and ports in the two ends of the pipe body are in butt joint with openings in the two ends of the shell respectively; a fluid channel is formed in the pipe body in the axial direction, the impeller part is coaxially fixed in the fluid channel, the magnet assemblies are distributed and fixedly arranged on the outer side of the pipe body in the circumferential direction of the pipe body, the coil assemblies are distributed and fixedly arranged on the inner wall of the shell in the circumferential direction of the shell, and the rotating blade assemblies can integrally rotate in the shell when water flow passes through the pipe body. And the magnet assembly on the outer side is driven to rotate relative to the coil assembly on the inner wall of the shell, current can be generated, part of electric energy is provided for the water heater, and therefore energy consumption of the water heater is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, and in particular to a self-powered device for a gas water heater and a gas water heater system. Background Art

[0002] The gas water heater of the prior art comprises the following components: a solenoid valve, an ignition part, a flow detection part, a control part, and a power supply part.

[0003] Existing gas water heaters need to be connected to a 220V household power supply when working, so as to provide power to the ignition part and thermal control system of the gas water heater. In actual application, due to the frequent use of hot water, the ignition part needs to be turned on frequently, and each time it is turned on, electrical energy is consumed, which makes the gas water heater consume a lot of energy.

[0004] Therefore, how to reduce the energy consumption of water heaters is a problem that needs to be solved in this field. Utility Model Content

[0005] In view of the above-mentioned technical problems existing in existing gas water heaters, the purpose of the utility model is to provide a self-powered device for a gas water heater and a gas water heater system. By adopting the self-powered device to provide part of the electrical energy for the water heater, the energy consumption of the water heater can be reduced, which can well solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a self-powered device for a gas water heater, comprising a shell, a rotating blade assembly, a magnet assembly, and a coil assembly. The shell is a cavity structure with openings at both ends and a hollow interior. The rotating blade assembly comprises a tube body and an impeller portion. The tube body is rotatably coaxially arranged in the cavity of the shell through a bearing assembly, and the bearing assembly forms a dynamic sealing structure between the tube body and the shell; ports at both ends of the tube body are respectively connected with the openings at both ends of the shell; a fluid channel is axially arranged inside the tube body, and the impeller portion is coaxially fixed in the fluid channel. The magnet assembly is distributed and fixedly arranged on the outside of the tube body along the circumference of the tube body, and the coil assembly is distributed and fixedly arranged on the inner wall of the shell along the circumference of the shell. The rotating blade assembly can rotate as a whole in the shell when water flows through the tube body, and drive the outer magnet assembly to rotate relative to the coil assembly on the inner wall of the shell.

[0007] Furthermore, the impeller portion includes a connecting column and a plurality of blade groups, the connecting column is arranged in the fluid channel, and its length is consistent with the axial length of the fluid channel, the plurality of blade groups are connected in sequence and equidistantly on the surface of the connecting column, the blade group is composed of a plurality of blades, the plurality of blades are distributed around the blade connecting column and the two ends are respectively connected to the connecting column and the inner surface of the tube body.

[0008] Furthermore, the bearing assemblies are in two groups, and the two groups of bearing assemblies are symmetrically arranged on both sides of the rotating blade assembly.

[0009] Furthermore, the magnet assembly includes a plurality of rotor magnets, the length of the rotor magnets is consistent with the axial length of the tube body, and the plurality of rotor magnets are distributed in sequence and at equal intervals along the circumference of the tube body.

[0010] Furthermore, the coil assembly includes a plurality of stator coils, which are equidistantly distributed along the inner wall of the shell in sequence. The plurality of stator coils form two output ends and pass through the shell to the outside for electrical connection with the gas water heater.

[0011] In order to achieve the above object, the utility model also provides a gas water heater system, including a controller, an ignition device, a battery and the self-power supply device as described above;

[0012] The controller is connected to the ignition device and is used to control the opening of the ignition device. The self-power supply device is electrically connected to the controller and the battery through the rectifier and filter device, respectively, and can provide working power for the controller and store excess electric energy in the battery. The battery is connected to the controller and the ignition device respectively;

[0013] The controller receives the electric energy generated by the self-power supply device, can form an ignition start signal and send it to the ignition device.

[0014] The gas water heater self-powered device and the gas water heater system provided by the utility model use the self-powered device to provide working power for the ignition device in the water heater, thereby reducing the energy consumption of frequent starting of the water heater and reducing the load of the national power grid;

[0015] And through the working characteristics of the self-powered device itself, the work of the flow sensor part can be included. When the controller receives electrical energy, it means that the user has a water demand. Therefore, the flow detection part that is necessary for traditional gas water heaters is eliminated, which can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0017] Figure 1 This is a schematic diagram of the overall structure of the self-powered device for a gas water heater provided by the utility model;

[0018] Figure 2 A schematic cross-sectional structure diagram of a self-powered device for a gas water heater provided by the utility model from a first perspective;

[0019] Figure 3A schematic cross-sectional structure diagram of a gas water heater self-powered device provided by the utility model from a second viewing angle;

[0020] Figure 4 A schematic cross-sectional structure diagram of the self-powered device for a gas water heater provided by the utility model from a third viewing angle;

[0021] Figure 5 This is a schematic diagram of the connection structure of the gas water heater system provided by the utility model.

[0022] Self-powered device 10, controller 20, ignition device 30, battery 40;

[0023] Housing 100, rotating blade assembly 200, magnet assembly 300, coil assembly 400, pipe interface 500, bearing assembly 600;

[0024] The tube body 210 , the impeller part 220 , the connecting column 221 , the blade group 222 , the blade 222 a , the rotor magnet 310 , the stator coil 410 , the output end 420 , the rectifying and filtering device 430 , the water inlet 510 , and the water outlet 520 . DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0026] See also Figure 1 , Figure 2 , which is a schematic structural diagram of a self-powered device 10 for a gas water heater provided by the utility model.

[0027] As can be seen from the figure, the self-powered device 10 of the gas water heater provided by the utility model includes four components: a housing 100 , a rotating blade assembly 200 , a magnet assembly 300 , and a coil assembly 400 .

[0028] The housing 100 is the main structure of the self-powered device 10 of the gas water heater and is used to carry other components.

[0029] Furthermore, the housing 100 is a cavity structure with openings at both ends and a hollow interior.

[0030] The rotating blade assembly 200 includes a tube body 210 and an impeller part 220. The tube body 210 is rotatably connected in the cavity of the housing 100 through a bearing assembly 600, and the bearing assembly 600 forms a dynamic sealing structure between the tube body 210 and the housing 100. The ports at both ends of the tube body 210 are respectively connected to the openings at both ends of the housing 100. A fluid channel is axially arranged inside the tube body 210, and the impeller part 220 is coaxially fixed in the fluid channel.

[0031] The magnet assembly 300 is distributed along the circumference of the tube body 210 and fixedly arranged on the outside of the tube body 210, and the coil assembly 400 is distributed along the circumference of the shell 100 and fixedly arranged on the inner wall of the shell 100. The rotating blade assembly 200 can rotate as a whole in the shell when water flows through the tube body 210, and drive the outer magnet assembly 300 to rotate relative to the coil assembly 400 on the inner wall of the shell 100.

[0032] Specifically, Figure 4 The impeller part 220 includes a connecting column 221 and a plurality of blade groups 222. The connecting column 221 and the plurality of blade groups 222 cooperate to form a turbine. The connecting column 221 is arranged in the fluid channel 230, and its length is consistent with the axial length of the fluid channel. The plurality of blade groups 222 are connected to the surface of the connecting column 221 in sequence and equidistantly. The blade group 222 is composed of a plurality of blades 222a. The plurality of blades 222a are distributed around the blade connecting column 221 and the two ends are respectively connected to the connecting column 221 and the inner surface of the tube body 210.

[0033] Furthermore, in order to further improve the power generation efficiency, the blades 222a of two adjacent blade groups 222 are staggered.

[0034] This solution does not limit the number of blade groups 222 and blades 222a, which can be determined according to actual needs. For example, this example preferably uses three blade groups 222 and each blade group 222 preferably uses three blades 222a.

[0035] The rotating blade assembly 200 of such a structure is rotatably connected in the cavity of the housing 100 via the bearing assembly 600 .

[0036] There are two groups of bearing assemblies 600 , which are symmetrically arranged on both sides of the rotating blade assembly 200 . The rotating blade assembly 200 is axially rotated relative to the housing 100 through the bearing assemblies 600 .

[0037] The bearing assembly 600 forms a dynamic sealing structure between the tube body 210 and the housing 100 to prevent water inside the tube body 210 from leaking to the outside. The sealing structure is a conventional technology in the art and will not be described in detail here.

[0038] The bearing assembly 600 of this example is preferably a ball bearing, which is placed in the cavity of the outer shell 100, with its outer ring connected to the inner wall of the outer shell 100, and the inner ring is sleeved on the outer wall of the tube body 210 of the rotating blade assembly 200 and connected thereto, so that the tube body 210 can rotate axially relative to the outer ring along with the inner ring of the ball bearing.

[0039] The bearing assembly 600 of such a structure cooperates with the rotating blade assembly 200. When water flows in the fluid channel inside the tube body 210, the flow of water drives the impeller part 220 to rotate due to the effect of water pressure.

[0040] The magnet assembly 300 includes a plurality of rotor magnets 310 . The rotor magnets 310 are preferably square in shape. The length of the rotor magnets 310 is consistent with the axial length of the tube body 210 . The plurality of rotor magnets 310 are distributed equidistantly along the circumference of the tube body 210 .

[0041] The coil assembly 400 includes a plurality of stator coils 410, which are preferably square in shape. The plurality of stator coils 410 are distributed equidistantly along the inner wall of the shell 100 in sequence. The plurality of stator coils 410 form two output ends 420 and penetrate from the inside of the shell to the outside. The output ends 420 are electrically connected to the gas water heater.

[0042] The two output ends 420 are preferably electrically connected to the gas water heater through the rectifying and filtering device 430, the two output ends 420 are electrically connected to the input end of the rectifying and filtering device 430, and the output end of the rectifying and filtering device 430 is electrically connected to the gas water heater, thereby providing a portion of electric energy for the gas water heater;

[0043] The above-mentioned rectifying and filtering device 430 can be composed of a corresponding rectifying and filtering circuit, which can be arranged inside the housing 100 or outside the housing 100. The rectifying and filtering device 430 is a conventional technology in the art and will not be described in detail here.

[0044] A plurality of rotor magnets 310 and a plurality of stator coils 410 cooperate to form a generator, with a gap left between the two. When water flows in the flow channel, the impeller part 220 is driven to rotate, and the impeller part 220 drives the tube body 210 to rotate. Due to the motion transmission, the plurality of rotor magnets 310 connected to the tube body 210 are driven to rotate with it. The rotor magnet 310 will generate a rotating magnetic field. The magnetic lines of force are cut by the stator coil 410 during the rotation process. According to the principle of electromagnetic induction, the stator coil 410 generates current, thereby providing a certain amount of electricity for the gas water heater.

[0045] Furthermore, the present solution further includes a pipeline interface 500, through which it is more convenient to connect with the pipeline of the gas water heater, and the pipeline interface 500 includes a water inlet 510 and a water outlet 520, and the water inlet 510 and the water outlet 520 are symmetrically arranged on both sides of the fluid channel, and one end of the water inlet 510 and the water outlet 520 are respectively connected to the housing 100 and sealed and communicated with the fluid channel, and the other end is respectively connected to the water pipeline of the gas water heater;

[0046] In actual application, by turning on the faucet, water flows in from the water inlet 510, passes through the fluid channel, and finally flows out from the water outlet 520. The flow of water can drive the impeller part 220 to rotate and drive the tube body 210 to rotate.

[0047] The gas water heater self-powered device 10 provided by the utility model can provide a part of electric energy for the water heater through the flow of water, thereby reducing the load of the national power grid.

[0048] The utility model also provides a gas water heater system, which includes the above-mentioned gas water heater self-powered device 10 and has all the characteristics of the gas water heater self-powered device 10.

[0049] Specifically, Figure 5 , the gas water heater system includes a controller 20, an ignition device 30, a battery 40 and a gas water heater self-power supply device 10;

[0050] The controller 20 is connected to the ignition device 30 and is used to control the opening of the ignition device 30. The gas water heater self-power supply device 10 is electrically connected to the controller 20 and the battery 40 through the rectifier and filter device 430, and can provide electrical energy for the controller 20 and store excess electrical energy in the battery 40. The battery 40 is connected to the controller 20 and the ignition device 30 respectively to provide power for them.

[0051] The controller 20 receives the electric energy generated by the power supply device 10 to determine the user's water demand, and can form an ignition start signal and send it to the ignition device 30 to control the ignition device 30 to ignite.

[0052] By setting the storage battery 40, energy can be released from the storage battery 40 when there is no water flow, so that the whole system can work. The energy in the storage battery 40 can support the whole system to work continuously for more than one week at least.

[0053] Compared with the gas water heater system in the prior art, which completely requires an external power supply to provide electrical energy and sets a flow sensor to sense the flow of water and judge the user's water demand, the gas water heater system provided by the utility model can not only provide working power for the ignition device in the water heater system through the self-powered device 10, thereby reducing the energy consumption of frequent start-up of the water heater, but also can include the work of the flow sensor part through the working characteristics of the self-powered device 10 itself. When the controller 20 receives electrical energy, it means that the user has a water demand, thereby eliminating the flow detection part that is necessary for traditional gas water heaters, which can reduce production costs.

[0054] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-powered device for a gas water heater, characterized in that: It includes an outer shell, a rotating blade assembly, a magnet assembly, and a coil assembly. The outer shell is a cavity structure with openings at both ends and a hollow interior. The rotating blade assembly includes a tube body and an impeller part. The tube body is rotatably coaxially arranged in the cavity of the outer shell through a bearing assembly, and the bearing assembly forms a dynamic sealing structure between the tube body and the outer shell; ports at both ends of the tube body are respectively connected with the openings at both ends of the outer shell; a fluid channel is axially arranged inside the tube body, and the impeller part is coaxially fixed in the fluid channel. The magnet assembly is fixedly arranged on the outer side of the tube body along the circumference of the tube body, and the coil assembly is fixedly arranged on the inner wall of the outer shell along the circumference of the outer shell. The rotating blade assembly can rotate as a whole in the outer shell when water flows through the tube body, and drive the outer magnet assembly to rotate relative to the coil assembly on the inner wall of the outer shell.

2. The self-powered device for gas water heater according to claim 1, characterized in that: The impeller portion includes a connecting column and a plurality of blade groups. The connecting column is arranged in the fluid channel, and its length is consistent with the axial length of the fluid channel. The plurality of blade groups are connected to the surface of the connecting column in sequence and at equal intervals. The blade group is composed of a plurality of blades. The plurality of blades are distributed around the blade connecting column and the two ends are respectively connected to the connecting column and the inner surface of the tube body.

3. The self-powered device for gas water heater according to claim 1, characterized in that: The bearing assemblies are divided into two groups, and the two groups of bearing assemblies are symmetrically arranged on both sides of the rotating blade assembly.

4. The self-powered device for gas water heater according to claim 1, characterized in that: The magnet assembly comprises a plurality of rotor magnets, the length of the rotor magnets is consistent with the axial length of the tube body, and the plurality of rotor magnets are distributed in sequence along the circumference of the tube body at equal intervals.

5. The self-powered device for gas water heater according to claim 1, characterized in that: The coil assembly includes a plurality of stator coils, which are equidistantly distributed along the inner wall of the shell in sequence. The plurality of stator coils form two output ends and pass through the shell to the outside for electrical connection with the gas water heater.

6. A gas water heater system, characterized in that: It comprises a controller, an ignition device, a battery and a self-powered device as claimed in any one of claims 1 to 5; The controller is connected to the ignition device and is used to control the opening of the ignition device. The self-power supply device is electrically connected to the controller and the battery through the rectifier and filter device, respectively, and can provide working power for the controller and store excess electric energy in the battery. The battery is connected to the controller and the ignition device respectively; The controller receives the electric energy generated by the self-power supply device, can form an ignition start signal and send it to the ignition device.

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