CN218864475U

CN218864475U - Instant water heater

Info

Publication number: CN218864475U
Application number: CN202222715906.4U
Authority: CN
Inventors: 蒋凯凯; 卜晓庆; 张斌; 陈小雷; 郑涛
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-14
Anticipated expiration: 2032-10-14

Abstract

The utility model belongs to the technical field of the heater, concretely relates to instant heating type water heater. The utility model discloses aim at solving the high temperature water problem that the temperature rise of cutting off water of current instant heating type water heater caused. The utility model discloses an instant heating type water heater is including advancing cold water pipe, heating element, circulation subassembly and going out the hot-water line. Cold water enters the heating assembly through the cold water inlet pipe to be heated. The heated hot water is discharged out of the instantaneous water heater through the hot water outlet pipe so as to be supplied to a user for use. The circulating assembly is started after the heating assembly stops working, and a part of cold water is circularly injected into the heating assembly. Through the arrangement, the problem of water cut-off and temperature rise of the instant water heater can be effectively solved, the water outlet temperature can be guaranteed to meet the use requirements of users to the maximum extent, and the use comfort of the users can be effectively improved.

Description

Instant water heater

Technical Field

The utility model belongs to the technical field of the heater, concretely relates to instant heating type water heater.

Background

At present, with the improvement of living standard, water heaters enter household, and especially in recent years, the popularity of instant water heaters is increasing year by year. Meanwhile, the comfort requirement of the user on bathing is higher and higher. In the process of using hot water for bathing, most users can temporarily turn off water and then take bathing again, when the instant water heater is turned on again, the bathing experience of the users can be seriously influenced by high-temperature water caused by water cut-off and temperature rise, and the hidden danger of scalding is also generated.

In the case where the instantaneous water heater is turned on again after the use of the instantaneous water heater is suspended, the temperature of water in the instantaneous water heater is increased first and then slowly decreased. If the user inadvertently opens the valve, hot water may be sprayed onto the user, burning the user.

Accordingly, there is a need in the art for a better safe tankless water heater that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, be the high temperature water problem that the temperature rise caused of cutting off the water supply that solves current instant heating type water heater promptly, the utility model provides an instant heating type water heater, including advancing cold water pipe, heating element, circulation subassembly and going out the hot-water line. The heating assembly includes a hot water chamber. The hot water chamber includes an inlet port for inlet of cold water and an outlet port for outlet of hot water. The water inlet is connected with a cold water inlet pipe. The circulation assembly comprises a suction pipe and a drain pipe. The water pumping pipe is connected with the water outlet of the heating component. The water outlet pipe is connected with the cold water inlet pipe. The hot water outlet pipe is connected with the water outlet of the heating component. The water pumping pipe is connected with the hot water outlet pipe.

In the above preferred technical solution of the instantaneous water heater, the circulation assembly further includes a pump body. The pump body is arranged between the water pumping pipe and the water discharging pipe.

In the above preferred technical solution of the instant water heater, the pump body is a direct current pump.

In the above preferred technical solution of the tankless water heater, the tankless water heater further includes an on-off control valve. The switch control valve is arranged between the water pumping pipe and the pump body.

In the above preferred technical solution of the instant water heater, the on-off control valve is a check valve.

In the above preferred embodiment of the tankless water heater, the circulation assembly further comprises a cold water chamber. The cold water chamber is arranged between the cold water inlet pipe and the water outlet pipe.

In the preferred technical scheme of the instant water heater, the cold water chamber and the cold water inlet pipe are of an integrally formed structure.

In the above preferred technical solution of the instantaneous water heater, the instantaneous water heater further includes a temperature sensor. The temperature sensor is arranged on the hot water outlet pipe.

In the above preferred technical solution of the instant water heater, the temperature sensor is disposed at one end of the hot water outlet pipe close to the water discharge port of the heating assembly.

In the above preferred technical scheme of the instant water heater, the heating assembly further comprises a heating body and a water pipe. The water delivery pipe is wound outside the heating body. The hollow structure of the water delivery pipe forms a hot water chamber.

As will be appreciated by those skilled in the art, the instant hot water heater of the present invention includes a cold water inlet pipe, a heating assembly, a circulation assembly, and a hot water outlet pipe. Cold water enters the heating assembly through the cold water inlet pipe to be heated. The heated hot water is discharged out of the instantaneous water heater through the hot water outlet pipe so as to be supplied to users for use. The circulating assembly is started after the heating assembly stops working, and a part of cold water is circularly injected into the heating assembly.

Therefore, the instant water heater provided by the embodiment of the application can effectively solve the problem of water cut-off and temperature rise of the instant water heater through the structures of the cold water inlet pipe, the heating assembly, the circulating assembly and the hot water outlet pipe, can ensure that the water outlet temperature meets the use requirements of users to the maximum extent, and can effectively improve the use comfort of the users.

Drawings

The preferred embodiments of the instant hot water heater of the present invention are described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic view of a partial structure of an instant water heater according to an embodiment of the present invention in a normal heating operation state;

fig. 2 is a schematic view of a partial structure of an instantaneous water heater according to an embodiment of the present invention in a state of temporarily stopping heating;

fig. 3 is a schematic view of a partial structure of an instantaneous water heater according to another embodiment of the present invention in a normal heating operation state.

In the drawings: 100. an instantaneous water heater; 10. a cold water inlet pipe; 20. a heating assembly; 201. a hot water chamber; 201a, a water inlet; 201b, a water outlet; 202. a heating body; 203. a water delivery pipe; 30. a circulation component; 301. a water pumping pipe; 302. a drain pipe; 303. a pump body; 304. a cold water chamber; 40. a hot water outlet pipe; 50. switching the control valve; 60. a temperature sensor; 70. a housing.

Detailed Description

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The instant water heater has higher power generally, so that hot water can be discharged after several seconds by only opening a water tap when the instant water heater is used, and the speed of heating for 3 seconds to discharge hot water can even reach 1 second, so that hot water supply with appropriate temperature can be obtained in a short time, the instant water heater is very quick and convenient, and the fast-paced life needs of modern people can be met. The hot water supply device is ideal for users needing to supply hot water for a short time, and most importantly, precious time of people is saved. Usually, cold water flows into the instantaneous water heater, and then the water in the instantaneous water heater is heated by heating to generate high-temperature water, so as to heat the water.

The preferred technical solution of the instant water heater of the present invention is explained below by combining with the above instant water heater.

Referring first to fig. 1 and fig. 2, fig. 1 is a schematic partial structural diagram of an instant water heater 100 according to an embodiment of the present invention in a normal heating working state. Fig. 2 is a schematic view of a partial structure of an instantaneous water heater 100 according to an embodiment of the present invention in a state of temporarily stopping heating.

Referring to fig. 1 and 2, the instant hot water heater 100 of the present invention may include a cold water inlet pipe 10, a heating assembly 20, a circulation assembly 30, and a hot water outlet pipe 40. The heating assembly 20 includes a hot water chamber 201. The hot water chamber 201 includes an inlet port 201a for inlet of cold water and an outlet port 201b for outlet of hot water. The water inlet 201a is connected with the cold water inlet pipe 10. The circulation assembly 30 includes a suction pipe 301 and a discharge pipe 302. The suction pipe 301 is connected to the discharge port 201b of the heating module 20. The water outlet pipe 302 is connected to the cold water inlet pipe 10. The hot water outlet pipe 40 is connected to the drain port 201b of the heating unit 20. The pumping pipe 301 is connected with the hot water outlet pipe 40.

The hot water chamber 201 is used to provide a water accommodating space, so that cold water entering the tankless water heater 100 can enter the hot water chamber 201 to be accommodated and heated. Cold water enters the tankless water heater 100 through the cold water inlet pipe 10. The cold water flowing through the cold water inlet pipe 10 enters the hot water chamber 201 of the heating unit 20 through the water inlet 201 a. The heating unit 20 heats cold water in the hot water chamber 201. The heated hot water in the hot water chamber 201 enters the hot water outlet pipe 40 through the water outlet port 201b. The hot water flows through the hot water outlet pipe 40 to be supplied to the user.

When the water is turned off in the instant water heater 100, the hot water in the hot water chamber 201 enters the hot water outlet pipe 40 through the water outlet port 201b. The hot water flowing through the hot water outlet pipe 40 enters the pumping pipe 301. Hot water flowing through the suction pipe 301 enters the discharge pipe 302. The hot water is mixed with the cold water entering the cold water pipe 10 through the drain pipe 302. The mixed water is injected into the hot water chamber 201 through the cold water inlet pipe 10, so that the temperature of the hot water in the hot water chamber 201 is reduced, and the problem of temperature rise of the water when the instant water heater 100 is opened after water is turned off is effectively solved.

The tankless water heater 100 of the embodiment of the present application includes a cold water inlet pipe 10, a heating assembly 20, a circulation assembly 30, and a hot water outlet pipe 40. Cold water enters the hot water chamber 201 of the heating assembly 20 through the cold water inlet pipe 10 to be heated. The heated hot water exits the tankless water heater 100 through the hot water outlet pipe 40 for use by a user. When the water in the instant water heater 100 is turned off, the circulation module 30 is started after the operation of the heating module 20 is stopped, hot water in the hot water chamber 201 is pumped out through the pumping pipe 301, and the hot water is mixed with cold water entering the cold water pipe 10 through the draining pipe 302, so that a part of cold water is circulated and injected into the hot water chamber 201 of the heating module 20, and the temperature of the hot water chamber 201 is lowered. Through the structure of the cold water inlet pipe 10, the heating component 20, the circulating component 30 and the hot water outlet pipe 40, the problem of temperature rise after water cut-off of the instant water heater 100 can be effectively solved, the water outlet temperature can be guaranteed to the maximum extent to meet the use requirements of users, the use comfort of the users can be effectively improved, and the users are prevented from being scalded under the condition that the instant water heater 100 is opened after water is shut down.

In one possible embodiment, referring to fig. 1 and 2, the circulation assembly 30 further comprises a pump body 303. The pump body 303 is disposed between the suction pipe 301 and the discharge pipe 302.

The pump body 303 is arranged in a connection mode between the water pumping pipe 301 and the water draining pipe 302, redundant pipelines are not generated, a water path is simple, installation is convenient, and working reliability is high.

In some examples, the pump 303 is configured to pump hot water flowing through the hot water outlet pipe 40 to the suction pipe 301. Hot water flowing through the suction pipe 301 is pumped by the pump body 303 into the drain pipe 302 so that the hot water is mixed with cold water entering the cold water pipe 10 through the drain pipe 302.

In one possible embodiment, referring to fig. 1 and 2, pump body 303 is a dc water pump.

The dc water pump does not operate in case of cold water intake of the instant water heater 100. During the period that the instant water heater 100 is turned off, the dc water pump is started, so that the dc water pump can pump hot water out of the hot water chamber 201 through the pumping pipe 301 and then deliver the hot water from the pumping pipe 301 to the drainage pipe 302.

In one possible embodiment, and as shown with reference to fig. 1 and 2, the tankless water heater 100 further includes an on-off control valve 50. The on-off control valve 50 is disposed between the suction pipe 301 and the pump body 303.

The on-off control valve 50 is used to control the on-off of the water flow between the pumping pipe 301 and the pump body 303, so as to effectively regulate the temperature of the hot water in the hot water chamber 201.

In one possible embodiment, referring to fig. 1 and 2, the on-off control valve 50 is a check valve.

The one-way valve has one-way conductivity. The one-way conduction characteristic of the one-way valve is beneficial to more effectively solving the problem of waste heat temperature rise of the instant water heater 100 under different working modes of the instant water heater 100, and avoiding the situation that the temperature is too high when the water temperature of the hot water chamber 201 rises.

In some examples, when the heating assembly 20 is in normal heating operation for cold water in the hot water chamber 201, the one-way valve in the water path formed by the circulation assembly 30 is in a one-way cut-off state because the water pressure is in a one-way cut-off state, no hot water is delivered from the suction pipe 301 to the discharge pipe 302, and no cold water flows from the discharge pipe 302 and the suction pipe 301 to the hot water outlet pipe 40. When the heating assembly 20 temporarily stops heating the cold water in the hot water chamber 201, the pump 303 is started to start the water pumping mode. At this time, the check valve opens in the opposite direction, and the check valve is opened in the direction from the suction pipe 301 to the discharge pipe 302. The pump 303 reversely pumps the hot water in the hot water chamber 201 through the water pumping pipe 301, so as to pump the hot water out of the hot water chamber 201, and the hot water is delivered to the water discharging pipe 302 through the water pumping pipe 301, and then the cold water in the cold water pipe 10 is delivered into the hot water chamber 201 of the heating assembly 20 to be mixed with the hot water, so that the temperature of the hot water in the hot water chamber 201 can be reduced, and a user can be prevented from being scalded when the instant water heater 100 is turned off and then turned on.

In one possible embodiment, referring to fig. 1 and 2, the circulation assembly 30 further includes a cold water compartment 304. The cold water chamber 304 is provided between the cold water inlet pipe 10 and the water outlet pipe 302.

The cold water compartment 304 is used to store cold water. When the pump 303 is operated, the cold water in the cold water chamber 304 can be delivered into the hot water chamber 201, so that the cold water and the hot water are mixed in the hot water chamber 201, and the temperature of the hot water in the hot water chamber 201 is reduced. The cold water chamber 304 can increase the storage capacity of cold water, which is beneficial for the cold water to enter the hot water chamber 201 quickly and massively.

In one possible embodiment, as shown in fig. 1 and 2, the cold water compartment 304 is integrally formed with the cold water inlet pipe 10.

The cold water chamber 304 and the cold water inlet pipe 10 are integrally formed, which is beneficial to improving the stability of the overall structure of the instant water heater 100, so that the cold water chamber 304 and the cold water inlet pipe 10 have better impact resistance, i.e., the cold water chamber 304 and the cold water inlet pipe 10 are not easy to break or crack when being subjected to large impact. Meanwhile, the integrally formed structure can prolong the service life of the cold water pipeline of the instant water heater 100 and reduce the maintenance frequency of the cold water pipeline, so that the manual maintenance cost is saved.

In one possible embodiment, and as illustrated with reference to fig. 2, the tankless water heater 100 further includes a temperature sensor 60. The temperature sensor 60 is provided in the hot water outlet pipe 40.

In some examples, the temperature sensor 60 may sense the outlet water temperature of the tankless water heater 100 such that the tankless water heater 100 adjusts heating power in a timely manner based on the outlet water temperature.

Illustratively, the temperature sensor 60 senses that the outlet water temperature of the tankless water heater 100 is above a set value and the tankless water heater 100 will reduce the heating power in due course. The temperature sensor 60 senses that the outlet water temperature of the instantaneous water heater 100 is lower than a set value, and the instantaneous water heater 100 increases the heating power timely. The temperature sensor 60 is arranged to prevent the instantaneous water heater 100 from being in a high-power heating state all the time, thereby saving energy.

In one possible embodiment, referring to fig. 2, the temperature sensor 60 is disposed at an end of the hot water outlet pipe 40 close to the water outlet 201b of the heating module 20.

The temperature sensor 60 is disposed at an end of the hot water outlet pipe 40 close to the water outlet 201b of the heating element 20, and is more favorable for accurately reflecting the temperature of the hot water in the hot water chamber 201 than at an end of the hot water outlet pipe 40 far away from the water outlet 201b of the heating element 20.

In some examples, the temperature sensor 60 is disposed at an end of the hot water outlet pipe 40 close to the drainage port 201b of the heating assembly 20, so that the instantaneous water heater 100 can adjust the heating power more precisely in the automatic heating mode, thereby reducing unnecessary energy waste.

In a possible implementation manner, fig. 3 schematically shows a partial structure of an instantaneous water heater 100 provided by another embodiment of the present invention in a normal heating operation state. Referring to fig. 3, the heating assembly 20 further includes a heating body 202 and a water pipe 203. The water pipe 203 is wound around the outside of the heating body 202. The hollow structure of the water delivery pipe 203 forms the hot water chamber 201.

In some examples, the water delivery pipe 203 and the hot water outlet pipe 40 may be an integrally formed structure.

In some examples, heater 202 may be a cast aluminum heater or a red copper heater.

Illustratively, the center of the cast aluminum heating body is a heating body. The heating body is composed of an alloy heating wire, an insulating layer and a red copper sleeve. The alloy heating wire is wrapped with an insulating layer and then packaged in the red copper pipe. The red copper tube is not electrified during working. The alloy heating wire is not soaked in water, so that the instant water heater 100 does not have the problem of scale generation. The water delivery pipe 203 is a stainless steel water pipe. The stainless steel water pipe can surround the heating body to form a water path. The hollow structure of the stainless steel water pipe forms a hot water chamber 201.

In some examples, the cold water inlet pipe 10, the suction pipe 301, the drain pipe 302, and the hot water outlet pipe 40 may all be stainless steel water pipes.

In one possible embodiment, referring to fig. 1 and 2, the tankless water heater 100 further includes a housing 70. The heating assembly 20 and the circulating assembly 30 are disposed in the housing 70. One end of each of the cold water inlet pipe 10 and the hot water outlet pipe 40 respectively penetrates out of the housing 70.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A tankless water heater, comprising:

a cold water inlet pipe;

the heating assembly comprises a hot water chamber, the hot water chamber comprises a water inlet for inlet cold water and a water outlet for outlet hot water, and the water inlet is connected with the cold water inlet pipe;

the circulating assembly comprises a water pumping pipe and a water discharging pipe, the water pumping pipe is connected with the water discharging port of the heating assembly, and the water discharging pipe is connected with the cold water inlet pipe;

and the hot water outlet pipe is connected with the water outlet of the heating assembly, and the water pumping pipe is connected with the hot water outlet pipe.

2. The tankless water heater of claim 1, further comprising a pump body disposed between said suction line and said drain line.

3. The tankless water heater of claim 2, further characterized in that said pump is a dc pump.

4. The tankless water heater of claim 2, further comprising an on-off control valve disposed between said suction line and said pump body.

5. The tankless water heater of claim 4, further characterized in that said on-off control valve is a one-way valve.

6. The tankless water heater of claim 1, further comprising a cold water compartment disposed between said cold water inlet pipe and said drain pipe.

7. The tankless water heater of claim 6, further characterized in that said cold water compartment is integrally formed with said cold water inlet pipe.

8. The tankless water heater of any of claims 1 to 7, further comprising a temperature sensor, said temperature sensor being disposed in said hot water outlet pipe.

9. The tankless water heater of claim 8, further characterized in that said temperature sensor is disposed at an end of said hot water outlet pipe proximate to said drain opening of said heating assembly.

10. The tankless water heater of any of claims 1 to 7, further comprising a heating body and a water pipe, wherein said water pipe is wound around the outside of said heating body, and the hollow structure of said water pipe forms said hot water chamber.