阅读说明：本技术 热水器 (Water heater ) 是由 肖建雄 黄茂林 彭晶 于 2018-06-20 设计创作，主要内容包括：本发明公开一种热水器,包括进水管、出水管、串接在所述进水管和所述出水管之间的燃气热水装置和电热水装置、控制器、以及燃气检测装置,所述燃气热水装置的点火器、所述电热水装置和所述燃气检测装置均与所述控制器电连接；所述燃气检测装置用以检测所述燃气热水装置是否得到供气；当所述燃气热水装置得到供气时,所述控制器控制所述燃气热水装置的点火器开启；当所述燃气热水装置未得到供气时,所述控制器控制所述电热水装置开启。本发明技术方案能提高热水器使用的灵活性。(The invention discloses a water heater, which comprises a water inlet pipe, a water outlet pipe, a gas water heating device, an electric water heating device, a controller and a gas detection device, wherein the gas water heating device and the electric water heating device are connected between the water inlet pipe and the water outlet pipe in series; the gas detection device is used for detecting whether the gas water heating device is supplied with gas or not; when the gas water heating device is supplied with gas, the controller controls an igniter of the gas water heating device to be started; and when the gas water heating device is not supplied with gas, the controller controls the electric water heating device to be started. The technical scheme of the invention can improve the use flexibility of the water heater.)

1. A water heater is characterized by comprising a water inlet pipe, a water outlet pipe, a gas water heating device, an electric water heating device, a controller and a gas detection device, wherein the gas water heating device and the electric water heating device are connected between the water inlet pipe and the water outlet pipe in series; the gas detection device is used for detecting whether the gas water heating device is supplied with gas or not;

when the gas water heating device is supplied with gas, the controller controls an igniter of the gas water heating device to be started; and when the gas water heating device is not supplied with gas, the controller controls the electric water heating device to be started.

2. The water heater according to claim 1, wherein said electric water heating device is disposed closer to said outlet pipe than said gas water heating device.

3. The water heater of claim 2, wherein said electric water heating device is disposed beside a heat exchanger of said gas water heating device.

4. The water heater according to claim 2, wherein the electric water heating device comprises a water storage tank and an electric heater arranged in the water storage tank, and the electric heater is electrically connected with the controller; the gas water heating device is communicated with a water inlet of the water storage tank, and the water outlet pipe is communicated with a water outlet of the water storage tank.

5. The water heater according to claim 4, wherein the water inlet of the water storage tank is provided with a water inlet insertion pipe, one end of the water inlet insertion pipe, which is far away from the water inlet of the water storage tank, is provided with a seal, and the pipe wall of the water inlet insertion pipe is provided with a plurality of water inlet holes.

6. The water heater according to claim 4, wherein a water mixing plate is transversely arranged between the upper end and the lower end of the water storage tank, the periphery of the water mixing plate is connected with the inner peripheral wall of the water storage tank in a matching manner so as to divide the inner cavity of the water storage tank into an upper cavity and a lower cavity, and a plurality of water through holes communicated with the upper cavity and the lower cavity are formed in the water mixing plate.

7. The water heater according to claim 4, wherein the electric heater comprises a mounting seat and an electric heating wire arranged on the mounting seat, the water storage tank is provided with a mounting opening matched with the mounting seat, and one exposed end of the mounting seat is connected with the controller through a power line.

8. The water heater of claim 4, wherein a first dry-heating prevention temperature controller is arranged on a pipeline between the gas water heater and the electric water heater, and the first dry-heating prevention temperature controller is connected in series with a circuit in which the igniter is arranged; and/or

The water outlet pipe is provided with a second dry heating prevention temperature controller and an overheating prevention temperature controller, the second dry heating prevention temperature controller is closer to the electric water heating device than the overheating prevention temperature controller, and the second dry heating prevention temperature controller and the overheating prevention temperature controller are connected in series in a circuit where the electric heater is located.

9. The water heater according to any one of claims 1 to 8, wherein the gas detection device is a gas concentration detector, and the gas concentration detector is arranged at a gas inlet of the gas water heating device;

when the water is introduced into the water inlet pipe and the gas concentration detector detects that the gas concentration at the gas inlet is greater than or equal to a preset value, the gas concentration detector sends a detection result of gas supply obtained by the gas water heating device to the controller, and the controller controls the igniter to be started;

when the water is introduced into the water inlet pipe and the gas concentration detector detects that the gas concentration at the gas inlet is smaller than a preset value, the gas concentration detector sends a detection result that the gas water heating device does not receive gas supply to the controller, and the controller controls the electric water heating device to be started.

10. The water heater according to any one of claims 1 to 8, wherein the gas detection device is a flame detector provided at the igniter;

when the water inlet pipe is filled with water, the controller sends a starting signal to the igniter, and when the flame detector detects that flame exists at the igniter, the flame detector sends a detection result that the gas water heating device obtains air supply to the controller, so that the gas water heating device works normally; when the flame detector does not detect that flame exists at the igniter, the flame detector sends a detection result that the gas water heating device does not obtain air supply to the controller, and the controller controls the electric water heating device to be started.

Technical Field

The invention relates to the technical field of water heater products, in particular to a water heater.

Background

As is known, the existing gas water heater can only work in a gas heating mode, and when the gas supply is insufficient, an igniter of the gas water heater cannot ignite and heat water; for example, in areas such as pakistan, 2-3 months of gas supply is short, the gas is used in limited quantity, the gas can only be used for cooking and cannot be supplied to a gas water heater, and the gas water heater cannot heat water in other modes, so that the gas water heater cannot be normally used in the period of time, and the flexibility of the use of the gas water heater is influenced.

Disclosure of Invention

The invention mainly aims to provide a water heater, and aims to solve the technical problems that a gas water heater in the prior art can only work in a gas heating mode and is poor in use flexibility.

In order to achieve the purpose, the water heater provided by the invention comprises a water inlet pipe, a water outlet pipe, a gas water heating device, an electric water heating device, a controller and a gas detection device, wherein the gas water heating device and the electric water heating device are connected between the water inlet pipe and the water outlet pipe in series; the gas detection device is used for detecting whether the gas water heating device is supplied with gas or not;

when the gas water heating device is supplied with gas, the controller controls an igniter of the gas water heating device to be started; and when the gas water heating device is not supplied with gas, the controller controls the electric water heating device to be started.

Preferably, the electric water heating device is disposed closer to the water outlet pipe than the gas water heating device.

Preferably, the electric water heating device is arranged beside the heat exchanger of the gas water heating device.

Preferably, the electric water heating device comprises a water storage tank and an electric heater arranged in the water storage tank, and the electric heater is electrically connected with the controller; the gas water heating device is communicated with a water inlet of the water storage tank, and the water outlet pipe is communicated with a water outlet of the water storage tank.

Preferably, the water inlet of water storage tank is equipped with into water intubate, the pipe of intaking keeping away from the one end of water storage tank water inlet is the setting of sealing, just be equipped with a plurality of holes of intaking on the pipe wall of the intubate of intaking.

Preferably, the water mixing plate is transversely arranged between the upper end and the lower end of the water storage tank, the periphery of the water mixing plate is connected with the inner peripheral wall of the water storage tank in an adaptive mode, so that the inner cavity of the water storage tank is divided into an upper cavity and a lower cavity, and the water mixing plate is provided with a plurality of communicating holes for the upper cavity and the lower cavity.

Preferably, the electric heater comprises a mounting seat and an electric heating wire arranged on the mounting seat, the water storage tank is provided with a mounting opening matched with the mounting seat, and one end of the mounting seat exposed outside is connected with the controller through a power line.

Preferably, a first dry-heating prevention temperature controller is arranged on a pipeline between the gas water heating device and the electric water heating device, and the first dry-heating prevention temperature controller is connected in series in a circuit where the igniter is located; and/or

The water outlet pipe is provided with a second dry heating prevention temperature controller and an overheating prevention temperature controller, the second dry heating prevention temperature controller is closer to the electric water heating device than the overheating prevention temperature controller, and the second dry heating prevention temperature controller and the overheating prevention temperature controller are connected in series in a circuit where the electric heater is located.

Preferably, the gas detection device is a gas concentration detector, and the gas concentration detector is arranged at a gas inlet of the gas water heating device;

when the water is introduced into the water inlet pipe and the gas concentration detector detects that the gas concentration at the gas inlet is greater than or equal to a preset value, the gas concentration detector sends a detection result of gas supply obtained by the gas water heating device to the controller, and the controller controls the igniter to be started;

when the water is introduced into the water inlet pipe and the gas concentration detector detects that the gas concentration at the gas inlet is smaller than a preset value, the gas concentration detector sends a detection result that the gas water heating device does not receive gas supply to the controller, and the controller controls the electric water heating device to be started.

Preferably, the gas detection device is a flame detector, and the flame detector is arranged at the igniter;

when the water is introduced into the water inlet pipe, the controller sends a starting signal to the igniter, and when the flame detector detects that flame exists at the igniter, the flame detector sends a detection result that the gas water heating device obtains gas supply to the controller, and the gas water heating device works normally; when the flame detector does not detect that flame exists at the igniter, the flame detector sends a detection result that the gas water heating device does not receive air supply to the controller, and the controller controls the electric water heating device to be started.

The technical scheme of the invention is that the gas water heating device or the electric water heating device is selected to be started to heat water by detecting whether the gas water heating device is supplied with gas or not; therefore, the water heater can be heated by gas and electricity, so that the work of the water heater is not limited by single energy supply, and the water heater can work in another heating mode under the condition of insufficient gas or insufficient electricity, thereby effectively improving the use flexibility of the water heater.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a water heater according to an embodiment of the present invention;

FIG. 2 is a schematic view of the water heater of FIG. 1;

fig. 3 is an enlarged schematic view of a point a in fig. 2.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a water heater.

In the embodiment of the invention, referring to fig. 1 to 3, the water heater comprises a water inlet pipe 1, a water outlet pipe 2, a gas water heating device 3 and an electric water heating device 4 connected in series between the water inlet pipe 1 and the water outlet pipe 2, a controller 5, and a gas detection device, wherein an igniter 31 of the gas water heating device 3, the electric water heating device 4 and the gas detection device are all electrically connected with the controller 5; the gas detection device is used for detecting whether the gas water heating device 3 is supplied with gas or not;

when the gas water heater 3 is supplied with gas, the controller 5 controls the igniter 31 of the gas water heater 3 to be started; when the gas water heater 3 is not supplied with gas, the controller 5 controls the electric water heater 4 to be turned on.

In this embodiment, the controller 5 includes the micro switch 51, the valve body 34 for installing the micro switch 51 is disposed at the water inlet pipe 1, the igniter 31 includes the pulser 311 and the fire grate 312, the fire grate 312 is located at the bottom of the heat exchanger 32 of the gas water heater 3, the micro switch 51 is electrically connected to the pulser 311 and the electric water heater 4, and the micro switch 51 drives the pulser 311 or the electric water heater 4 to start up through a water flow signal. It should be noted that the design is not limited to this, and in other embodiments, the controller 5 may further include a water flow switch electrically connected to the pulser 311 and the electric water heater 4, respectively. In this embodiment, the gas-fired water heating apparatus 3 further includes a hood 33 provided above the heat exchanger 32.

Specifically, when water flows through the water inlet pipe 1, the microswitch 51 sends a water flow signal to the gas detection device, the gas detection device detects whether the gas water heating device 3 is supplied with air or not and feeds back the detection result to the controller 5, when the controller 5 receives the detection result that the gas water heating device 3 is supplied with air, the pulser 311 of the gas water heating device 3 is controlled to ignite the fire grate 312 to heat the water in the heat exchanger 32, and when the controller 5 receives the detection result that the gas water heating device 3 is not supplied with air, the electric water heating device 4 is controlled to be turned on, and the electric water heating device 4 heats the inflowing water.

According to the technical scheme, whether the gas water heating device 3 is supplied with gas or not is detected, and the gas water heating device 3 or the electric water heating device 4 is selected to be started to heat water; therefore, the water heater can be heated by gas and electricity, so that the work of the water heater is not limited by single energy supply, and the water heater can work in another heating mode under the condition of insufficient gas or insufficient electricity, thereby effectively improving the use flexibility of the water heater.

Further, the electric water heating device 4 is disposed closer to the water outlet pipe 2 than the gas water heating device 3. It can be understood that, in this embodiment, the water heater alternatively starts the gas water heater 3 or the electric water heater 4 according to the water flow signal of the micro switch 51 at the water inlet pipe 1, so that the electric water heater 4 is disposed close to the water outlet pipe 2, when the gas is insufficient, the electric water heater 4 is started before water flows through the electric water heater 4, and it is effectively ensured that the water heater starts to supply hot water from the starting stage. It should be noted that the design is not limited thereto, and in other embodiments, the electric water heater 4 may be disposed closer to the water inlet pipe 1 than the gas water heater 3.

Furthermore, the electric water heating device 4 is arranged beside the heat exchanger 32 of the gas water heating device 3. It can be understood that the electric water heater 4 and the gas water heater 3 are reasonably arranged, so that the overall space occupation of the water heater is reduced, and the installation difficulty and the installation requirement are reduced. It should be noted that the present design is not limited to this, and in other embodiments, the electric water heater 4 may be provided on the upper side or the lower side of the gas water heater 3.

Further, referring to fig. 3, the electric water heating device 4 includes a water storage tank 41, and an electric heater 43 disposed in the water storage tank 41, wherein the electric heater 43 is electrically connected to the controller 5; the gas water heating device 3 is communicated with a water inlet of the water storage tank 41, and the water outlet pipe 2 is communicated with a water outlet of the water storage tank 41. It can be understood that, on the one hand, this electric water heating device 4 simple structure is favorable to reducing the whole production cost of water heater, and on the other hand, introduces this electric water heating device 4, need not to change the former water pipe way of firing of gas hot-water heating device 3 by a wide margin, assembles simple, swift. It should be noted that the design is not limited thereto, and in other embodiments, the electric water heating device 4 may also specifically include other structures.

Further, referring to fig. 3, a water inlet of the water storage tank 41 is provided with a water inlet insertion tube 42, one end of the water inlet insertion tube 42, which is far away from the water inlet of the water storage tank 41, is provided with a seal, and a plurality of water inlet holes 421 are provided on a tube wall of the water inlet insertion tube 42. It can be understood that, so set up, be favorable to guaranteeing the water intensive mixing in the water storage tank 41, and be heated evenly, improve the constant temperature effect of electric hot water heating device 4 exhaust hot water. In this embodiment, the water inlet pipe 42 is cylindrical, and the plurality of water inlet holes 421 are uniformly spaced along the radial direction and the axial direction of the peripheral surface of the water inlet pipe 42. It should be noted that the present design is not limited to this, and in other embodiments, other structures of mixing water are provided in the water storage tank 41.

In another embodiment, a water mixing plate (not shown) is transversely disposed between the upper end and the lower end of the water storage tank 41, the periphery of the water mixing plate is adapted to be connected to the inner peripheral wall of the water storage tank 41 to divide the inner cavity of the water storage tank 41 into an upper cavity and a lower cavity, and a plurality of water passing holes communicating the upper cavity and the lower cavity are disposed on the water mixing plate. It can be understood that, with such an arrangement, the water in the water storage tank 41 can be fully mixed, and the uniformity of heating of the water in the water storage tank 41 can be improved.

Further, referring to fig. 3, the electric heater 43 includes a mounting seat 431 and a heating wire 432 disposed on the mounting seat 431, a mounting opening adapted to the mounting seat 431 is disposed on the water storage tank 41, and one end of the mounting seat 431 exposed to the outside is connected to the controller 5 through a power line 6. It can be understood that so set up, on the one hand, make things convenient for the dismantlement and the fixed of electric heater 43 in water storage tank 41, improve the convenience that electric heater 43 was changed to user's maintenance goods, on the other hand, the mode low price that adopts power cord 6 to connect is favorable to reducing the production cost of water heater. In this embodiment, the controller 5 further includes a knob switch 52, the knob switch 52 is respectively connected to the heating wire 432 and the micro switch 51 through the power cord 6, and the knob switch 52 has at least three different temperature control levels to meet different water temperature requirements of users. It should be noted that the design is not limited to this, in other embodiments, the electric heater 43 may also specifically include other heating structures, and the controller 5 may also drive the electric heater 43 to operate through a wireless signal.

Further, referring to fig. 2, a first dry-heating prevention temperature controller 7 is arranged on a pipeline between the gas water heater 3 and the electric water heater 4, and the first dry-heating prevention temperature controller 7 is connected in series in a circuit where the igniter 31 is located; the water outlet pipe 2 is provided with a second dry heating prevention temperature controller 8 and an overheating prevention temperature controller 9, the second dry heating prevention temperature controller 8 is closer to the electric water heating device 4 than the overheating prevention temperature controller 9, and the second dry heating prevention temperature controller 8 and the overheating prevention temperature controller 9 are both connected in series in a circuit where the electric heater 43 is located. It can be understood that the anti-dry heating temperature controller and the anti-overheating temperature controller 9 are protection devices widely used in the prior art, wherein the anti-dry heating temperature controller can be used for switching off the circuit irreparably after the detection temperature exceeds 100 ℃, and the anti-overheating temperature controller 9 can be used for switching off the circuit recoverably after the detection temperature exceeds the preset temperature. It should be noted that, in other embodiments, only the first dry-heating preventing temperature controller 7 is disposed on the pipeline between the gas water heater 3 and the electric water heater 4, or only the second dry-heating preventing temperature controller 8 and the overheating preventing temperature controller 9 are disposed on the water outlet pipe 2.

Further, the gas detection device is a gas concentration detector (not shown), and the gas concentration detector is arranged at a gas inlet of the gas water heating device 3; when the water inlet pipe 1 is filled with water and the gas concentration detector detects that the gas concentration at the gas inlet is greater than or equal to a preset value, the gas concentration detector sends a detection result that the gas water heating device 3 obtains gas supply to the controller 5, and the controller 5 controls the igniter 31 to be started; when the water is introduced into the water inlet pipe 1 and the gas concentration detector detects that the gas concentration at the gas inlet is smaller than the preset value, the gas concentration detector sends a detection result that the gas water heating device 3 does not receive gas supply to the controller 5, and the controller 5 controls the electric water heating device 4 to be started. It can be understood that, with the arrangement, the alternative switching-on of the gas water heating device 3 and the electric water heating device 4 can be accurately and quickly realized according to the detection of the gas concentration. It should be noted that the present design is not limited thereto, and in other embodiments, the gas detection device may also be embodied in other structures.

In yet another embodiment, the gas detection device is a flame detector (not shown) disposed at the fire bank 312; when the water is supplied to the water inlet pipe 1, the controller 5 sends a starting signal to the pulser 311, and when the flame detector detects that flame exists at the fire grate 312, the flame detector sends a detection result that the gas water heating device 3 obtains supplied gas to the controller 5, so that the gas water heating device 3 works normally; when the flame detector does not detect that there is a flame at the fire grate 312, the flame detector sends a detection result that the gas water heater 3 does not receive air supply to the controller 5, and the controller 5 controls the electric water heater 4 to be turned on. It can be understood that, with the arrangement, the gas water heater 3 and the electric water heater 4 can be switched on accurately and quickly according to the detection of whether flame exists at the fire grate 312. In addition, it is understood that the flame detector may be a temperature detector or an image detector disposed at the fire bank 312 to determine whether there is a flame at the fire bank 312 through a temperature or an image, respectively.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.