CN112556167B

CN112556167B - Electric auxiliary heating type gas water heater

Info

Publication number: CN112556167B
Application number: CN202011320689.8A
Authority: CN
Inventors: 李键; 刘联产; 赵鹏
Original assignee: Chongqing Haier Water Heater Co Ltd; Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Chongqing Haier Water Heater Co Ltd; Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2022-08-16
Anticipated expiration: 2040-11-23
Also published as: CN112556167A

Abstract

The invention discloses an electric auxiliary heating type gas water heater, which comprises: the water-saving device comprises a shell, a water inlet pipe and a water outlet pipe, wherein an installation space is formed inside the shell; a burner for burning a combustible gas; a heat exchanger for supplying water to flow and heating water using heat generated from the burner; an electric heating module for heating water flowing therethrough; the automatic flow regulating valve is used for automatically regulating the water inlet flow according to the water inlet temperature of the water inlet pipe; the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger, the automatic flow regulating valve is arranged on the water inlet pipe, and the electric heating module is arranged on the water outlet pipe or the water inlet pipe. The flow is automatically controlled according to water flow by configuring the automatic flow regulating valve on the water inlet pipe, so that the requirement of outputting hot water temperature is met, and the user experience is improved.

Description

Electric auxiliary heating type gas water heater

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to an electric auxiliary heating type gas water heater.

Background

At present, a gas water heater is a household appliance commonly used in daily life of people, and generally comprises a shell, a burner, a heat exchanger and other components arranged in the shell, wherein a water inlet pipe and a water outlet pipe arranged on the shell are connected with the heat exchanger, and cold water entering from a water inlet pipe can be heated by the heat exchanger and then can be output from a water outlet pipe.

However, when the gas water heater is started, part of cold water in a pipeline of the hot gas water heater cannot be heated, and a certain amount of cold water needs to flow out firstly when the gas water heater is started, so that the waiting time of a user is long. Chinese patent application No. 201811305203.6 discloses an electric water heater, which controls the electric heating power by configuring an electric heating system in a water outlet pipe and calculating with a temperature sensor and a flow sensor, thereby reducing the output of cold water when starting up. Because the electric heating system is only auxiliary heating, the heating power is low, and in winter, when the water flow is high, the output hot water can not be guaranteed to reach the temperature set by the user, so that the user experience is poor.

In view of this, how to design a gas water heater technology with good user experience is a technical problem to be solved by the invention.

Disclosure of Invention

The invention provides an electric auxiliary heating type gas water heater, which is characterized in that an automatic flow regulating valve is arranged on a water inlet pipe to automatically control the flow according to the water flow so as to meet the requirement of outputting the temperature of hot water and improve the user experience.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

in one aspect, the present invention provides an electrically assisted gas water heater comprising:

the water-saving device comprises a shell, a water inlet pipe and a water outlet pipe, wherein an installation space is formed inside the shell;

a burner for burning a combustible gas;

a heat exchanger for supplying water to flow and heating water using heat generated from the burner;

an electric heating module for heating water flowing therethrough;

the automatic flow regulating valve is used for automatically regulating the water inlet flow according to the water inlet temperature of the water inlet pipe;

the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger, the automatic flow regulating valve is arranged on the water inlet pipe, and the electric heating module is arranged on the water outlet pipe or the water inlet pipe.

Further, the automatic flow regulating valve is arranged inside the shell and positioned between the water inlet pipe and the heat exchanger; or the automatic flow regulating valve is arranged outside the shell and connected to the inlet of the water inlet pipe.

Further, the electric heating module is arranged inside the outer shell; alternatively, the electrical heating module is disposed outside the housing.

Further, the automatic flow regulating valve includes:

installing a pipe;

the valve comprises a valve body, a valve body and a valve body, wherein a mounting cavity is formed in the valve body, one end of the valve body is provided with a mounting port, and the other end of the valve body is provided with a water outlet;

the valve core forms a water flow channel, one end of the water flow channel is a water inlet, and the other end of the water flow channel is a water flowing port;

the driving part is made of a memory alloy material;

the valve body is arranged in the installation pipe, the valve core penetrates through the installation opening to be arranged in the installation cavity, the driving part is arranged between the valve body and the valve core, and the driving part is used for driving the valve core to move according to the water inlet temperature of the water inlet so as to adjust the water flow of the water outlet.

Furthermore, a sealing ring is arranged between the outer wall of the valve body and the inner wall of the installation pipe.

Furthermore, a first water retaining part is arranged in the water flow channel, the first water retaining part is integrally of an annular structure, and a throttling opening is formed in the first water retaining part.

Furthermore, a second water retaining part is arranged outside the valve core, penetrates through the mounting opening and is slidably arranged in the mounting cavity.

Furthermore, a shielding part is arranged in the water outlet and is opposite to the water flowing port; the driving part is used for driving the valve core to be close to or far away from the shielding part according to the water inlet temperature of the water inlet.

Furthermore, a limiting part and a first positioning part are arranged outside the valve core, the limiting part is close to the water flowing port, and the positioning part is close to the water inlet; the mounting cavity is internally provided with a limiting matching part and a second positioning part, the limiting part is arranged between the limiting matching part and the water outlet, and the driving part is arranged between the first positioning part and the second positioning part.

Furthermore, the driving part is a memory spring or a memory elastic sheet.

Furthermore, the driving part is positioned at one side of the valve core, and the side wall of the valve core is also provided with a through hole communicated with the water flow channel.

Furthermore, a mounting hole is formed in the pipe wall of the mounting pipe, and a water temperature sensor is arranged in the mounting hole; and/or a flow sensor is also arranged in the installation pipe.

Compared with the prior art, the invention has the advantages and positive effects that: through dispose the automatic flow control valve on the inlet tube, the automatic flow control valve can be according to the temperature automatically regulated inflow of intaking, and then under the environment in winter, when the temperature of intaking is lower, can reduce the inflow of inlet tube automatically through the automatic flow control valve to satisfy the hot water supply user that the water that gets into can be timely output reach the settlement temperature after heating via heat exchanger and electric heating module and use, in order to improve user experience nature.

Drawings

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

FIG. 1 is a schematic structural view of an electric auxiliary heating type gas water heater according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the automatic flow regulating valve of FIG. 1;

FIG. 4 is a cross-sectional view of the automatic flow regulating valve of FIG. 1;

FIG. 5 is a schematic view of the automatic flow control valve of FIG. 3 with the mounting tube removed;

FIG. 6 is a second schematic view of the automatic flow control valve of FIG. 3 with the mounting tube removed;

FIG. 7 is a cross-sectional view of the automatic flow control valve of FIG. 3 with the mounting tube removed;

FIG. 8 is an exploded view of the automatic flow control valve of FIG. 3 with the mounting tube removed;

fig. 9 is an assembled exploded view of the valve cartridge of the automatic flow regulating valve of fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, the present embodiment proposes an electric auxiliary heating type gas water heater, comprising:

the water purifier comprises a shell 100, wherein an installation space is formed inside the shell 100, and a water inlet pipe 101 and a water outlet pipe 102 are arranged on the shell 100;

a burner 200, the burner 200 for burning a combustible gas;

a heat exchanger 300 for supplying water to flow and heating water using heat generated from the burner 200, the heat exchanger 300; wherein, the water inlet pipe 101 and the water outlet pipe 102 are respectively connected with the heat exchanger 300;

the electric heating module 400 is used for heating water flowing through, and the electric heating module 400 is arranged on the water outlet pipe 102 or the water inlet pipe 101.

Specifically, in the actual use process, when the electric auxiliary heating type gas water heater needs to be assisted by the electric heating module 300 for heating, the flowing water can be electrically heated by the electric heating module 400, so as to meet the requirement of hot water output under the condition that the burner 100 cannot provide enough heat to heat the water. The inlet pipe 101 is connected to a water supply pipe in the user's home, and the outlet pipe 102 is connected to a water terminal (a faucet or a shower) in the user's home. Here, the specific working process of the electric auxiliary heating type gas water heater is not limited and described in detail.

In order to meet the requirement that the electric auxiliary heating type gas water heater can quickly output hot water after being started in a low-temperature environment, the gas water heater further comprises an automatic flow regulating valve 500. The automatic flow regulating valve 500 is used for automatically regulating the inflow water flow according to the inflow water temperature of the inflow water pipe 101.

Specifically, the automatic flow regulating valve 500 is connected to the water inlet pipe 201, and the water inlet flow can be automatically regulated according to the water inlet temperature, so that the water inlet flow can be automatically reduced through the automatic flow regulating valve 500 under the condition that the water inlet temperature is low, the heat generated by the burner 200 and/or the electric heating module 400 can meet the requirement that the water inlet flow is rapidly heated to the set temperature, the water temperature output by the water outlet pipe 202 meets the requirement that the user sets the water temperature, and the time for the user to wait for hot water is reduced.

In an embodiment of the present application, there are various forms for the installation position of the automatic flow adjusting valve 500. For example: the automatic flow regulating valve 500 is disposed inside the casing 100 between the inlet pipe 101 and the heat exchanger 300. Specifically, the automatic flow regulating valve 500 is installed inside the housing 100 in a built-in manner, and the automatic flow regulating valve 500 is connected between the water inlet pipe 101 and the heat exchanger 300 on a waterway connection. In use, water entering from the water inlet pipe 101 passes through the automatic flow regulating valve 500 and enters the heat exchanger 300.

Alternatively, the automatic flow regulating valve 500 is disposed outside the casing 100 and connected to the inlet of the water inlet pipe 101. Specifically, the automatic flow control valve 500 is installed outside the housing 100, and is connected to a water path, and the automatic flow control valve 500 is directly installed at an inlet of the water inlet pipe 101 and is connected to a water supply pipe in the home of the user through the automatic flow control valve 500. During use, water delivered by the water supply pipe automatically adjusts the flow valve 500 and then enters the water inlet pipe 101.

In another embodiment of the present application, the electric heating module 400 may be disposed inside the outer casing 100 or externally fixed outside the outer casing 100 as required. In order to optimize the design effect, the electric heating module 400 is disposed inside the housing 100. Meanwhile, in order to facilitate connection of piping, it is preferable to dispose the electric heating module 400 between the outlet pipe 102 and the heat exchanger 300.

In another embodiment of the present application, the automatic flow regulating valve 500 is to be able to automatically control the water flow according to the inlet water temperature of the inlet pipe 101, and its concrete entities are described below with reference to the drawings.

As shown in fig. 3 to 9, the automatic flow regulating valve 500 includes: valve body 1, case 2, driver part 3 and installation pipe 6.

Wherein the installation pipe 6 serves as a pipe connection part for connecting with the inlet pipe 201. The valve body 1 serves as a mounting member, which is mounted in the valve tube, and the interior thereof forms a mounting chamber. One end part of the valve body 1 is provided with a mounting port 11, and the other end part is provided with a water outlet 12; the valve core 2 forms a water flow channel (not marked), one end of the water flow channel is a water inlet 21, and the other end of the water flow channel is a water discharge port 22; the driving part 3 is used as a power driving element and is made of a memory alloy material so as to realize deformation by utilizing water temperature.

During actual assembly, the valve core 2 is arranged in the mounting cavity through the mounting opening 11, the driving part 3 is arranged between the valve body 1 and the valve core 2, and the valve body 1 is arranged in the mounting pipe 6. When the water heater is used, the driving part 3 is used for driving the valve core 2 to move according to the water inlet temperature of the water inlet 21 so as to adjust the water flow of the water outlet 12.

Specifically, in the actual use process, the installation pipe 6 may be connected to the water inlet pipe 201 of the gas water heater, the cold water flowing in the water inlet pipe 201 enters the water inlet 21 and is output from the water outlet 12, and the output water enters the heat exchanger 200 through the water inlet pipe of the gas water heater to be heated. The driving part 3 is made of a memory alloy material (for example, TiNi shape memory alloy and other materials, which are not limited herein), so that the driving part 3 can deform according to the change of the water inlet temperature of the water inlet 21, and the deformation generated by the driving part 3 is used for driving the valve core 2 to move in the valve body 1. And the valve core 2 can change the distance between the valve core 2 and the water outlet 12 in the moving process of the valve body 1, and finally the purpose of adjusting the water outlet flow is realized.

When the water inlet temperature of the water inlet 21 is higher, the driving part 3 extends, so that the valve core 2 moves away from the water outlet 12 to increase the water outlet amount; otherwise, the driving part 3 will retract, so that the valve core 2 moves close to the water outlet 12 to reduce the water yield. The water flow entering from the water inlet 21 flows to the water outlet 12 through the water flow port 22 and is output to the outside of the valve body 1.

In some embodiments, in order to simplify the structure and to fully utilize the force generated by the water flow to assist the movement of the valve core 2, a first water blocking portion 23 is provided in the water flow passage. Specifically, after the water flow introduced from the water inlet 21 is blocked by the first water blocking portion 23, the water flow generates a certain thrust to the first water blocking portion 23, and the thrust generated by the water flow faces the water outlet 12.

Thus, the valve core 2 and the driving part 3 can be always in close contact under the action of thrust generated by water flow. Furthermore, when the water temperature is increased, the driving part 3 overcomes the thrust generated by the water flow to drive the valve core 2 to move away from the water outlet 12; otherwise, when the driving part 3 retracts, the valve core 2 is driven by water flow to move towards the air outlet reversely.

For the concrete entity of the first water retaining portion 23, a retaining ring with an annular structure formed in the water flow channel may be adopted, and the retaining ring can be utilized to start the function of flow blocking on one hand, and on the other hand, a throttling opening (not marked) formed by the retaining ring can meet the requirement of normal flow of water flow.

Likewise, in other embodiments, the outer portion of the valve core 2 is provided with a second water stop portion 24, and the second water stop portion 24 passes through the mounting opening 11 and is slidably disposed in the mounting cavity. Specifically, the second water stop portion 24 is disposed outside the valve core 2 and can slide in the installation cavity, so that the water pressure generates pressure on the second water stop portion 24, and the water flow exerts a force on the valve core 2 in a direction toward the water outlet 12. In this case, the second water stop portion 24 may be integrally formed in a housing structure so as to have a sufficiently large area to be in contact with the water flow, thereby generating a sufficient pressure by the water flow.

The second water retaining portion 24 and the valve core 2 may be of an integral structure, or the second water retaining portion 24 and the valve core 2 may be of a split structure. In the case of a split structure, in order to facilitate assembling the second water stop portion 24 to the valve element 2, a strip-shaped hole 241 is provided on the second water stop portion 24, and two limiting plates 25 arranged oppositely are configured on the valve element 2, and meanwhile, a positioning boss 26 of an annular structure is further formed on the valve element 2.

During the assembly, the limiting plate 25 passes through the strip-shaped hole 241, so that the second water stopping portion 24 abuts against the positioning boss 26, and then the valve core 2 is rotated, so that the limiting plate 25 and the strip-shaped hole 241 are arranged in a staggered manner, and the assembly between the limiting plate and the strip-shaped hole 241 is completed. Wherein, can be in the corresponding disposition in both sides of bar hole 241 reference column 242, and the tip of limiting plate 25 is provided with positioning groove 251, and after rotating limiting plate 25, reference column 242 blocks in positioning groove 251. Above-mentioned split type structure can simplify the processing degree of difficulty of case 2 to make things convenient for operating personnel fast assembly more.

The first water stopper 23 and the second water stopper 24 may be used simultaneously to obtain the maximum pressure generated by the water flow.

In a preferred embodiment, in order to reduce the water resistance of the automatic flow regulating valve to the water flow, the second water retaining portion 24 may be provided with a protruding structure 243 on the peripheral side wall, and the protruding structure 243 will abut against the inner wall of the valve body 1, so that a certain interval is formed between the valve body 1 and the second water retaining portion 24 to meet the requirement of the water flow. Like this, when the higher temperature of intaking need not carry out the accent through automatic flow regulation valve 500 and flow, then the water that enters into inlet tube 201 when the automatic flow regulation valve 500 of flowing through, can be intake from interval and water inlet 21 between valve body 1 and the second retaining part 24 simultaneously, and then increase the area of intaking in order to reduce the water resistance to satisfy the requirement that reduces the energy consumption.

In one embodiment, the driving member 3 is located at one side of the valve core 2, and the side wall of the valve core 2 is further provided with a through hole 27 communicating with the water flow passage. Specifically, when flowing through the water flow path, the water flowing from the water inlet 21 also flows to the outside of the valve body 2 through the through hole 27, so that the driving member 3 can detect the temperature of the water flowing in. Similarly, in the case of using the second water stopper 24, a gap is formed between the second water stopper 24 and the mounting opening 11, so that on one hand, the second water stopper 24 can be ensured to move smoothly in the mounting cavity, and on the other hand, a small amount of water can enter the mounting cavity through the gap and be used for the driving part 3 to detect the water temperature.

In another embodiment, in order to control the water flow more accurately, a shielding part 121 is disposed in the water outlet 12, and the shielding part 121 is disposed opposite to the water flowing port 22; the driving part 3 is used for driving the valve core 2 to approach or leave the shielding part 121 according to the water inlet temperature of the water inlet 21. Specifically, the blocking portion 121 can be used to control the water flow more accurately, when the valve element 2 is close to the water outlet 12, the blocking portion 121 is close to the water flowing port 22 of the valve element 2, and the valve element 2 blocks the water flowing port 22, so as to reduce the water flow of the water outlet 12. On the contrary, when the valve core 2 moves away from the water outlet 12, the distance between the water flow opening 22 and the shielding portion 121 is increased to reduce the shielding effect of the shielding portion 121, thereby increasing the water flow rate of the water outlet 12.

And the shielding part 121 is connected to the edge of the water outlet 12 through the connecting rib 122 arranged on the edge, so that a water outlet space is formed between the edge of the shielding part 121 and the edge of the water outlet 12 to ensure smooth output of water flow.

In one embodiment, the valve core 2 is further provided with a limiting portion 28 and a first positioning portion 29 on the outside, the limiting portion 28 is close to the water flowing port 22, and the positioning portion is close to the water inlet 21; the mounting cavity is provided with a limit matching part 13 and a second positioning part 14, the limit part 28 is arranged between the limit matching part 13 and the water outlet 12, and the driving part 3 is arranged between the first positioning part 29 and the second positioning part 14.

Specifically, a stepped hole is formed in the mounting cavity at a position close to the water outlet 12, and the limit matching portion 13 is arranged in the stepped hole and matched with the limit portion 28 through the limit matching portion 13, so that the valve element 2 can move between the shielding portion 121 and the limit matching portion 13. The position-limiting part 28 may be a flanged structure formed at the end of the valve core 2, and the position-limiting matching part 13 may be a retaining ring or a washer. The specific structural forms of the position-limiting part 28 and the position-limiting fitting part 13 are not limited herein. In addition, it is possible for the first positioning portion 29 to be an annular plate structure formed to extend outward on the outer periphery of the positioning boss 26.

In order to facilitate mounting of the driving member 3, the driving member 3 is mounted by the first positioning portion 29 and the second positioning portion 14, respectively. The driving part 3 is positioned and installed between the first positioning part 29 and the second positioning part 14, so that the driving part 3 extends or retracts according to the water temperature, and the purpose of driving the valve plug 2 to move is achieved. The first positioning portion 29 may be a baffle plate provided on the end of the valve body 2, the second positioning portion 14 may be a collar provided in the stepped hole, and the driving member 3 is provided between the baffle plate and the collar. The mounting ring can be arranged in the stepped hole in a threaded mounting mode, and the limiting matching part 13 is limited between the stepped surface of the stepped hole and the mounting ring. The specific configuration of the first positioning portion 29 and the second positioning portion 14 is not limited herein.

In an embodiment, as for the specific structural form of the driving part 3, a structural form such as a memory spring or a memory elastic sheet can be adopted. Taking the memory spring as an example, the memory spring is sleeved outside the valve core 2, and the memory spring expands and contracts according to different temperatures, so that the valve core 2 is driven to move.

In the above embodiment, in order to facilitate the sealing installation of the valve body 1 in the installation pipe 6, a sealing assembly 5 may be further disposed outside the valve body 1, and the sealing assembly 5 is disposed outside the valve body 1 to seal the connection surface formed between the valve body 1 and the inner wall of the valve pipeline. The sealing assembly 5 may be a sealing ring directly sleeved outside the valve body 1, or the sealing assembly 5 may include a sealing ring 51, a first sealing ring 52 and a second sealing ring 53, the sealing ring 51 may be disposed on the valve body 1 by interference fit or threaded connection, and the first sealing ring 52 is sandwiched between the sealing ring 51 and the valve body 1. The outer circumference of the sealing ring 51 is provided with a groove, in which the second sealing ring 53 is arranged. When the automatic flow regulating valve is used, the automatic flow regulating valve is arranged in the valve conveying pipeline, and the connecting surface between the automatic flow regulating valve and the valve conveying pipeline can be sealed through the second sealing ring 53.

In some embodiments, for the purpose of increasing functionality, a mounting hole (not labeled) is provided on the wall of the mounting tube 6, and a water temperature sensor 7 is provided in the mounting hole, and the water temperature sensor 7 can be used to detect the temperature of the water flowing through the mounting tube 6.

In some embodiments, a flow sensor 8 is further disposed in the installation tube 6, and in particular, the flow sensor 8 is disposed in the installation tube 6, so that the flow of water flowing through the installation tube 6 can be detected. For the structural forms of the water temperature sensor 7 and the flow sensor 8, a sensor form in the conventional technology can be adopted, and no limitation and repeated description is given here.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An electrically assisted gas water heater, comprising:

a burner for burning a combustible gas;

an electric heating module for heating water flowing therethrough;

the automatic flow regulating valve is arranged on the water inlet pipe, and the electric heating module is arranged on the water outlet pipe or the water inlet pipe;

the automatic flow regulating valve includes:

installing a pipe;

the driving part is made of a memory alloy material;

in addition, the valve body is arranged in the installation pipe, the valve core penetrates through the installation port and is arranged in the installation cavity, the driving part is arranged between the valve body and the valve core, and the driving part is used for driving the valve core to move according to the water inlet temperature of the water inlet so as to adjust the water flow of the water outlet; the outer portion of the valve core is provided with a second water retaining portion, the second water retaining portion penetrates through the mounting opening and is arranged in the mounting cavity in a sliding mode, the side wall of the periphery of the second water retaining portion is provided with a protruding structure, and the protruding structure is attached to the inner wall of the valve body so that an interval for flowing water supply flow is formed between the valve body and the second water retaining portion.

2. The electrically assisted heat gas water heater according to claim 1, wherein the automatic flow regulating valve is disposed inside the housing between the water inlet pipe and the heat exchanger; or the automatic flow regulating valve is arranged outside the shell and connected to the inlet of the water inlet pipe.

3. The electric assisted gas water heater of claim 1, wherein the electric heating module is disposed inside the housing; alternatively, the electrical heating module is disposed outside the housing.

4. The electric auxiliary heating type gas water heater according to claim 1, wherein a sealing ring is arranged between the outer wall of the valve body and the inner wall of the mounting pipe.

5. The electric auxiliary heating type gas water heater according to claim 1, wherein a first water retaining part is arranged in the water flow channel, the first water retaining part is integrally of an annular structure, and a throttling opening is formed in the first water retaining part.

6. The electric auxiliary heating type gas water heater according to claim 1, wherein a shielding part is arranged in the water outlet, and the shielding part is arranged opposite to the water flowing port; the driving part is used for driving the valve core to be close to or far away from the shielding part according to the water inlet temperature of the water inlet.

7. The electric auxiliary heating type gas water heater according to claim 1, wherein a limiting portion and a first positioning portion are further arranged outside the valve core, the limiting portion is close to the water flowing port, and the positioning portion is close to the water inlet; the mounting cavity is internally provided with a limiting matching part and a second positioning part, the limiting part is arranged between the limiting matching part and the water outlet, and the driving part is arranged between the first positioning part and the second positioning part.

8. The electric auxiliary heat type gas water heater according to claim 7, wherein the driving part is a memory spring or a memory shrapnel.

9. The electric auxiliary heating type gas water heater according to claim 1, wherein the driving part is located at one side of the valve core, and a through hole communicated with the water flow channel is further formed in the side wall of the valve core.

10. The electric auxiliary heating type gas water heater according to claim 1, wherein a mounting hole is formed in a pipe wall of the mounting pipe, and a water temperature sensor is arranged in the mounting hole; and/or a flow sensor is also arranged in the installation pipe.