CN219433477U - water heater - Google Patents

Abstract

The utility model provides an electric water heater. The electric water heater comprises a shell, a liner assembly, a water main, an instant heating module, a water mixing module and a control device, wherein the liner assembly comprises a liner body, a liner heating module, a liner water inlet pipe and a liner water outlet pipe, and the liner body is arranged in the shell; the main water pipe penetrates through the shell and is positioned outside the liner body, and a water inlet of the liner water inlet pipe is communicated with the main water pipe; the instant heating module is arranged in the shell and is used for heating water flowing through the water main; the water mixing module is arranged on the water main and is positioned at the downstream of the water inlet pipe of the inner container, and the water mixing module is used for adjusting the proportion of cold water and hot water flowing through the water mixing module; the liner heating module, the instant heating module and the water mixing module are respectively and electrically connected with the control device. The utility model can shorten the heating time of the electric water heater and improve the energy utilization rate of the electric water heater.

Description

water heater

technical field

The utility model relates to the technical field of water heaters, in particular to an electric water heater.

Background technique

Water heaters are indispensable household appliances for every family now, and electric water heaters are widely used at present. Electric water heaters usually supply hot water by storing water and heating them. The hot water they supply is not instant hot. When users need to use hot water quickly, it needs to be heated for a period of time before use. Only when the hot water is heated to the user's preset temperature can the user's needs be met, which leads to a long waiting time for the user and poor user experience.

Utility model content

The main purpose of the utility model is to provide an electric water heater, aiming at shortening the heating time of the electric water heater and improving the energy utilization rate of the electric water heater at the same time.

In order to achieve the above purpose, the utility model proposes an electric water heater, which includes:

shell;

An inner container assembly, including an inner container body, an inner container heating module arranged on the inner container body, an inner container water inlet pipe and an inner container outlet pipe, the inner container body is arranged in the outer shell;

The main water pipe is installed on the shell and is located outside the inner tank body, and the water inlet of the inner tank water inlet pipe is connected with the main water pipe;

The instant heating module is arranged in the shell, the instant heating module is arranged on the water main pipe and is located upstream of the water inlet of the inner tank water inlet pipe, and the instant heating module is used for convective flow through the water main pipe water for heating;

The water mixing module is arranged on the water main pipe and is located downstream of the water inlet of the inner tank water inlet pipe. The cold water inlet of the water mixing module communicates with the water main pipe, and the hot water of the water mixing module enters The water outlet is communicated with the water outlet of the inner tank outlet pipe, the water outlet of the water mixing module is communicated with the water main pipe, and the water mixing module is used to adjust the ratio of cold water and hot water flowing through the water mixing module. regulation; and

A control device, the inner tank heating module, the instant heating module and the water mixing module are respectively electrically connected to the control device.

In one embodiment, the main water pipe includes a main water inlet pipe, a main water outlet pipe and a pipeline joint, and the pipeline joint has a first interface, a second interface and a third interface communicated with each other, and the first interface and The main water inlet pipe is connected, the second interface is connected with the water inlet of the liner water inlet pipe, and the third interface is connected with the main water outlet pipe; the instant heating module is arranged on the main water inlet pipe , the water mixing module is arranged on the main water outlet pipe.

In one embodiment, the electric water heater further includes an inlet water temperature sensor, and the inlet water temperature sensor is arranged on the water main pipe and is located upstream of the water inlet of the inner tank water inlet pipe.

In one embodiment, the inlet water temperature sensor is arranged on the water main pipe and is located upstream of the instant hot water inlet of the instant heat module; and/or,

The water inlet temperature sensor is arranged on the water main pipe, and is located between the instant water outlet of the instant heating module and the water inlet of the inner tank water inlet pipe.

In one embodiment, the electric water heater further includes an outlet water temperature sensor, and the outlet water temperature sensor is arranged on the water main pipe and is located downstream of the water outlet of the water mixing module.

In one embodiment, the electric water heater further includes a flow sensor, and the flow sensor is arranged on the main water pipe and is located upstream of the water inlet of the inner tank water inlet pipe.

In one embodiment, the flow sensor is arranged on the water main pipe and is located upstream of the instant water inlet of the instant heat module; and/or,

The flow sensor is arranged on the water main pipe, and is located between the instant water outlet of the instant heating module and the water inlet of the inner tank water inlet pipe.

In one embodiment, the electric water heater further includes a flow sensor, and the flow sensor is arranged on the water main pipe and is located downstream of the water outlet of the water mixing module.

In one embodiment, the electric water heater further includes an inner tank temperature sensor, the inner tank temperature sensor is arranged on the inner tank body to detect the outlet water temperature of the inner tank outlet pipe and/or the inner tank temperature sensor. The temperature of the water in the liner body.

In one embodiment, the inner tank temperature sensor is arranged on the inner tank body and near the water inlet of the inner tank outlet pipe.

In one embodiment, the pipeline joint is a tee joint; and/or,

The water mixing module is a thermostatic water mixing valve.

The electric water heater of the utility model includes a shell, an inner tank assembly, a water main pipe, an instant heating module, a water mixing module and a control device. The instant heat module is arranged in the shell, and the instant heat module is arranged on the main water pipe and is located upstream of the water inlet of the liner water inlet pipe. The instant heat module is used to heat the water flowing through the main water pipe. The liner heating module and the instant heat modules can be used together. When the water in the main water pipe reaches the preset temperature after being heated by the instant heating module, the electric water heater can supply hot water by heating the incoming water with the instant heating module outside the tank. Tank heating module, so that the electric water heater can be turned on and used immediately, so that the user does not need to wait, and the electric water heater does not need to heat all the water in the inner tank body, which is conducive to improving the energy utilization rate of the electric water heater; When the water does not reach the preset temperature after being heated by the instant heating module, the instant heating module and the inner tank heating module can work together, that is, the hot module heats the water in the main water pipe, and the inner tank heating module For heating, the water mixing module adjusts the ratio of the water heated by the instant heating module and the water heated by the inner tank heating module, so as to obtain hot water at the temperature required by the user, and heat the instant heating module and the inner tank through the control device The adjustment and control of the module and the water mixing module realizes the reasonable collocation of heat storage and instant heating of the electric water heater, so that the electric water heater can reduce the power consumption of the inner tank heating module by reducing the hot water flow rate of the inner tank component, which is beneficial to improve The energy utilization rate of the electric water heater; and, the electric water heater with two working modes can ensure the supplied hot water temperature and stable hot water output, and is beneficial to shorten the heating time of the electric water heater.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is the structural representation of the first embodiment of the electric water heater of the present utility model;

Fig. 2 is the structural representation of the second embodiment of the electric water heater of the present invention;

Fig. 3 is a schematic structural view of the third embodiment of the electric water heater of the present invention;

Fig. 4 is a schematic structural view of a fourth embodiment of the electric water heater of the present invention;

Fig. 5 is a schematic structural view of a fifth embodiment of the electric water heater of the present invention;

Fig. 6 is a schematic structural view of the sixth embodiment of the electric water heater of the present invention;

Fig. 7 is a schematic diagram of the water flow direction in the electric water heater of the present invention.

Explanation of reference numbers:

label name label name 100 shell 320 total outlet pipe 200 Liner components 330 pipe joint 210 Liner body 400 instant heat module 220 Liner heating module 500 water mixing module 230 Inner water inlet pipe 600 Inlet water temperature sensor 240 Liner outlet pipe 700 outlet water temperature sensor 300 water main 800 Flow Sensors 310 Main water inlet 900 Inner tank temperature sensor

The realization of the purpose, functional features and advantages of the utility model will be further explained with reference to the accompanying drawings in combination with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present utility model, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the relative positional relationship, movement conditions, etc. between the components shown in the figure below are changed, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

Water heaters are indispensable household appliances for every family now, and electric water heaters are widely used at present. Electric water heaters usually supply hot water by storing water and heating them. The hot water they supply is not instant hot. When users need to use hot water quickly, it needs to be heated for a period of time before use. Only when the hot water is heated to the user's preset temperature can the user's needs be met, which leads to a long waiting time for the user and poor user experience.

The utility model provides an electric water heater, which can shorten the heating time of hot water and improve the energy utilization rate of the electric water heater.

Please refer to Fig. 1, in an embodiment of the electric water heater of the present utility model, the electric water heater includes a shell 100, an inner tank assembly 200, a water main pipe 300, an instant heating module 400, a water mixing module 500 and a control device, and the inner tank assembly 200 includes The inner tank body 210, the inner tank heating module 220 arranged on the inner tank body 210, the inner tank water inlet pipe 230 and the inner tank outlet pipe 240, the inner tank body 210 is arranged in the outer shell 100; the main water pipe 300 It is installed on the shell 100 and is located outside the inner tank body 210, and the water inlet of the inner tank water inlet pipe 230 communicates with the water main pipe 300; that is, the thermal module 400 is arranged in the outer shell 100, the The instant heating module 400 is arranged on the main water pipe 300 and is located upstream of the water inlet of the inner tank water inlet pipe 230, and the instant heating module 400 is used to heat the water flowing through the main water pipe 300; the water mixing module 500 is located on the main water pipe 300 and is located downstream of the water inlet of the liner water inlet pipe 230, the cold water inlet of the water mixing module 500 communicates with the water main pipe 300, and the hot water of the water mixing module 500 The water inlet is connected with the water outlet of the inner tank outlet pipe 240, the water outlet of the water mixing module 500 is connected with the water main pipe 300, and the water mixing module 500 is used to convect the water flowing through the water mixing module 500. The ratio of cold water and hot water is adjusted; the inner tank heating module 220, the instant heating module 400 and the water mixing module 500 are respectively electrically connected to the control device.

It can be understood that the main water pipe 300 has a main water inlet and a main water outlet, the main water inlet is used to supply water into the electric water heater, and the main water outlet is used to discharge the water to the outside of the electric water heater, that is, the water is input into the electric water heater through the main water inlet. In the water heater, water is discharged through the main water outlet. The main water pipe 300 is the main water channel of the electric water heater. The direction indicated by the arrow in FIG. 1 indicates the direction of water flow.

Further, the water inlet of the inner tank water inlet pipe 230 communicates with the main water pipe 300, and the water outlet of the inner tank water inlet pipe 230 is arranged in the inner tank body 210, so that water can flow into the inner tank body 210 along the inner tank water inlet pipe 230; The water inlet of the inner tank outlet pipe 240 is located in the inner tank body 210; the water outlet of the inner tank outlet tube 240 is connected with the hot water inlet of the water mixing module 500, so that the water in the inner tank body 210 can flow out along the inner tank. The water pipe 240 flows into the main water pipe 300 and is discharged outward through the main water outlet of the main water pipe 300; the inner tank heating module 220 can heat the water in the inner tank body 210 to output hot water outwards; The specific structure is not limited, it only needs to be able to heat the water in the inner tank body 210, for example but not limited to, the inner tank heating module 220 includes a heating tube or a heating wire.

Further, the instant heat module 400 is arranged in the shell 100, and the instant heat module 400 is arranged on the main water pipe 300, so that the instant heat module 400 can heat the water flowing through the main water pipe 300, and at the same time, the instant heat module 400 is arranged on the main water pipe 300 Upstream of the water inlet of the inner tank water inlet pipe 230, that is to say, the water in the main water pipe 300 is first heated by the instant heating module 400, and then flows along the main water pipe 300 to the water inlet of the inner tank water inlet pipe 230. The water heated by the module 400 can flow into the inner tank body 210 through the water inlet of the inner tank water inlet pipe 230 and the inner tank water inlet pipe 230 in sequence, and then flow into the main water pipe 300 from the inner tank water outlet pipe 240 and then be discharged outward; of course, The water heated by the instant heating module 400 may also flow along the main water pipe 300 , which is not limited herein.

Further, the water mixing module 500 is used to adjust the ratio of cold water and hot water flowing through the water mixing module 500, wherein the cold water flowing through the water mixing module 500 refers to the cold water inlet flowing into the water mixing module 500 along the main water pipe 300 The hot water flowing through the water mixing module 500 refers to the water flowing into the hot water inlet of the water mixing module 500 along the water outlet of the liner outlet pipe 240, that is to say, the water mixing module 500 can The ratio of the water after passing through the instant heating module 400 and the water in the inner tank body 210 is adjusted so that the mixed water can reach the user's preset temperature, thereby meeting the user's needs. The specific ratio of cold water and hot water is not limited, as long as the temperature of the water discharged from the water outlet of the water mixing module 500 can meet the needs of users.

Further, the control device is used to control the operation of the liner heating module 220, the instant heating module 400 and the water mixing module 500. The control device includes a controller. The number of controllers can be one, or multiple, and will not be described in detail here. Limitations, such as but not limited to, the number of controllers is one, at this time the controller can respectively control the inner tank heating module 220, the instant heating module 400 and the water mixing module 500; of course, the number of controllers can be two Or three, which can be set according to needs, for example, the inner tank heating module 220, the instant heating module 400 and the water mixing module 500 are respectively electrically connected to a controller.

In addition, the instant heating module 400 is arranged in the casing 100, and the casing 100 can protect the instant heating module 400, that is to say, the instant heating module 400 can be integrated inside the casing 100, and the control device can control the instant heating module 400, This helps to reduce the space occupied by the instant heating module 400 outside the housing 100, and can protect the instant heating module 400, avoiding the situation that the instant heating module 400 is located outside the housing 100, which is easy to be damaged by collision and complicated to install. Thereby the practicability of the electric water heater is improved.

The electric water heater of the present utility model includes a shell 100, an inner tank assembly 200, a main water pipe 300, an instant heating module 400, a water mixing module 500 and a control device. The inner tank assembly 200 includes an inner tank body 210, an inner tank heating module 220, an inner tank The water inlet pipe 230 and the inner tank outlet pipe 240, that is, the thermal module 400 is arranged in the shell 100, and the instant thermal module 400 is arranged on the main water pipe 300 and is located upstream of the water inlet of the inner tank water inlet pipe 230, that is, the thermal module 400 is used for To heat the water flowing through the main water pipe 300, the inner tank heating module 220 and the instant heating module 400 can be used in conjunction. When the water in the main water pipe 300 reaches the preset temperature after being heated by the instant heating module 400, the electric water heater can supply hot water by heating the incoming water with the instant heating module 400 outside the tank. At this time, the water supply channel only passes through the main water pipe 300 Without going through the inner tank heating module 220, the electric water heater can be turned on and used immediately, so that the user does not need to wait, and the electric water heater does not need to heat all the water in the inner tank body 210, which is conducive to improving the energy utilization of the electric water heater rate; when the water in the main water pipe 300 does not reach the preset temperature after being heated by the instant heating module 400, the instant hot module 400 and the inner tank heating module 220 can work together, that is, the hot module 400 heats the water entering the main water pipe 300 , the inner tank heating module 220 heats the water in the inner tank body 210, and the water mixing module 500 adjusts the ratio of the water heated by the instant heating module 400 and the water heated by the inner tank heating module 220, so as to obtain the water required by the user. The temperature of hot water, and through the control device to adjust and control the instant heating module 400, the liner heating module 220 and the water mixing module 500, the reasonable matching of heat storage and instant heating of the electric water heater is realized, so that the electric water heater can reduce the inner The hot water flow of the inner tank assembly 200 reduces the power consumption of the inner tank heating module 220, thereby improving the energy utilization rate of the electric water heater; and the electric water heater with two working modes can ensure the temperature of the hot water supplied and the stable heat Water output, and help to shorten the heating time of electric water heaters.

Please refer to FIG. 2 , in one embodiment, the main water pipe 300 includes a main water inlet pipe 310, a main water outlet pipe 320 and a pipeline connector 330, and the pipeline connector 330 has a first interface, a second interface and a The third interface, the first interface communicates with the main water inlet pipe 310, the second interface communicates with the water inlet of the liner water inlet pipe 230, and the third interface communicates with the main water outlet pipe 320; The instant heating module 400 is arranged on the main water inlet pipe 310 , and the water mixing module 500 is arranged on the main water outlet pipe 320 .

It can be understood that, by setting the pipeline joint 330 so that the water inlet of the inner tank water inlet pipe 230 communicates with the main water pipe 300, it is beneficial to improve the efficiency of assembly and disassembly of the electric water heater. In addition, the main water pipe 300 also includes a main water inlet pipe 310 and a main water outlet pipe 320, that is, the thermal module 400 is arranged on the main water inlet pipe 310, and the water mixing module 500 is arranged on the main water outlet pipe 320, that is to say, the main water pipe 300 is at least divided into It is divided into two stages, which facilitates the communication between the instant heating module 400 and the main water inlet pipe 310, and facilitates the communication between the instant heating module 400 and the main water outlet pipe 320, thereby facilitating the assembly and disassembly of the instant heating module 400 and the water mixing module 500. It can be seen that by arranging the main water inlet pipe 310, the main water outlet pipe 320 and the pipe joint 330, it is beneficial to improve the assembly and disassembly efficiency of the electric water heater, and the applicability of the electric water heater is high.

Please refer to the embodiment shown in FIG. 2 to FIG. 6 , the electric water heater also includes an inlet water temperature sensor 600 , and the inlet water temperature sensor 600 is arranged on the water main pipe 300 and located at the inlet of the water inlet pipe 230 of the inner tank. upstream of the mouth. It can be understood that the water inlet temperature sensor 600 is electrically connected to the control device, and the water inlet temperature sensor 600 can detect the water temperature upstream of the water inlet of the liner water inlet pipe 230 on the main water pipe 300, so that it can assist in controlling The device controls the inner tank heating module 220, the instant heating module 400 and the water mixing module 500, so that the temperature of the hot water output by the electric water heater can quickly reach the preset temperature, and the temperature of the output hot water is more stable.

For example, the control device can control whether the instant heating module 400 is working according to the water outlet temperature preset by the user. The tank heating module 220, the instant heating module 400 and the water mixing module 500 make the water flowing into the electric water heater only flow along the main water pipe 300, and the inner tank heating module 220 stops working to realize the external supply of hot water from the inner tank body 210. In this way, the power consumption of the inner tank heating module 220 for heating the water in the inner tank body 210 can be reduced, and at the same time, the instant-on function of the electric water heater is realized, so that the user can use the electric water heater at any time without waiting.

For another example, when the temperature of the instant hot water outlet heated by the instant hot module 400 does not reach the water outlet temperature preset by the user, the control device can control the liner heating module 220, the instant hot module 400 and the water mixing module 500 to work together, such as The instant heating module 400 heats the incoming water on the main water pipe 300 , the liner heating module 220 heats the water in the liner body 210 , and the water mixing module 500 controls and adjusts the cold water inlet of the water mixing module 500 and the water mixing module 500 The water supply ratio of the hot water inlet, so that the temperature of the water flowing out of the water outlet of the water mixing module 500 reaches the preset temperature, which not only helps to reduce the heating time of the electric water heater to heat water, but also helps to increase the energy of the electric water heater utilization rate.

In one embodiment, the inlet water temperature sensor 600 is arranged on the main water pipe 300 and is located upstream of the instant hot water inlet of the instant heat module 400; and/or, the inlet water temperature sensor 600 is set On the main water pipe 300 and between the instant hot water outlet of the instant heating module 400 and the water inlet of the inner tank water inlet pipe 230 .

It can be understood that the water inlet temperature sensor 600 is arranged upstream of the water inlet of the liner water inlet pipe 230, wherein the water inlet temperature sensor 600 can be arranged upstream of the instant hot water inlet of the instant heat module 400, at this time, the water inlet The temperature sensor 600 is used to detect the water inlet temperature of the main water pipe 300 of the electric water heater. Certainly, the water inlet temperature sensor 600 can also be arranged between the instant water outlet of the instant heating module 400 and the water inlet of the liner water inlet pipe 230. Water is detected, if the instant heating module 400 works and heats the water passing through it, then the water inlet temperature sensor 600 detects the temperature of the water heated by the instant heating module 400; if the instant heating module 400 does not heat the water passing through it heating, the water inlet temperature sensor 600 detects the water inlet temperature of the main water pipe 300 of the electric water heater. The above-mentioned water inlet temperature sensor 600 is set at the upstream of the water inlet of the inner tank water inlet pipe 230. The specific position is not limited. By setting the water inlet temperature sensor 600, it is beneficial for the auxiliary control device to control the electric water heater, so that the hot water output by the electric water heater The temperature can quickly reach the preset temperature, and make the output hot water temperature more stable.

Please refer to the embodiment shown in FIG. 2 to FIG. 6 , the electric water heater also includes an outlet water temperature sensor 700 , the outlet water temperature sensor 700 is arranged on the water main pipe 300 and is located at the outlet of the water mixing module 500 downstream.

It can be understood that the outlet water temperature sensor 700 is electrically connected to the control device, and the outlet water temperature sensor 700 can detect the water temperature downstream of the water outlet of the water mixing module 500 on the water main pipe 300, that is, the temperature of the water discharged by the electric water heater. Detection to ensure that the temperature of the discharged water reaches the user's preset temperature. If the temperature of the water discharged by the electric water heater detected by the water outlet temperature sensor 700 exceeds the over-temperature protection threshold of the user's preset temperature, it means that the temperature of the water discharged by the electric water heater does not meet the user's needs. At this time, the control device can control the electric water heater. The tank heating module 220, the instant heating module 400 and the water mixing module 500 ensure that the temperature of the hot water output by the electric water heater can quickly reach the preset temperature. The outlet water temperature sensor 700 has the function of an auxiliary control device to control the electric water heater, ensuring The stability of the output hot water temperature is conducive to improving the reliability of the electric water heater. Among them, the user's preset temperature can be expressed as T°C, and the over-temperature protection threshold of the user's preset temperature can be expressed as T±5°C, or T±2°C, etc., that is to say, the over-temperature protection threshold of the user's preset temperature The protection threshold is the protection value of the user's preset temperature, so as to avoid the range of the water temperature exceeding the user's preset temperature too much, which is conducive to improving the user's experience. To the change of temperature, and the higher water temperature is easy to burn the user's skin.

In one embodiment, the electric water heater further includes a flow sensor 800 , the flow sensor 800 is arranged on the water main pipe 300 and is located upstream of the water inlet of the inner tank water inlet pipe 230 .

It can be understood that the flow sensor 800 is electrically connected with the control device, and the flow sensor 800 can detect the water inlet flow upstream of the water inlet of the liner water inlet pipe 230 on the main water pipe 300, so that the electric water heater can be set in time. The water intake of the electric water heater can be accurately detected to prevent the inner tank heating module 220 and/or the instant heating module 400 from continuing to work and being damaged due to dry burning when the water intake is insufficient, thereby improving the reliability of the electric water heater. In addition, the instant heating module 400 can also adjust the working power through the water inlet flow of the main water pipe 300, and the flow sensor 800 is used in conjunction with the temperature sensor so that the temperature of the water heated by the instant heating module 400 is consistent with the temperature preset by the user. It is beneficial to improve the energy utilization rate of the electric water heater, and can shorten the heating time of the electric water heater.

In one embodiment, the flow sensor 800 is set on the main water pipe 300 and is located upstream of the instant hot water inlet of the instant heat module 400; and/or, the flow sensor 800 is set on the main water pipe 300; The water pipe 300 is located between the instant hot water outlet of the instant heating module 400 and the water inlet of the inner tank water inlet pipe 230 .

It can be understood that the flow sensor 800 is arranged upstream of the instant water inlet of the instant heat module 400 , and at this time, the flow sensor 800 is used to detect the water intake flow of the main water pipe 300 of the electric water heater. Certainly, the flow sensor 800 can also be arranged between the instant water outlet of the instant heating module 400 and the water inlet of the liner water inlet pipe 230. At this time, the flow sensor 800 is used to detect the flow rate of the water passing through the instant heating module 400. In this way, it is possible to detect whether the working state of the instant heating module 400 is normal, avoiding the problem that the instant heating module 400 is damaged by dry burning due to the low water flow rate when the instant heating module 400 is working, thereby improving the reliability of the electric water heater.

In one embodiment, the electric water heater further includes a flow sensor 800 , the flow sensor 800 is arranged on the water main pipe 300 and is located downstream of the water outlet of the water mixing module 500 . Such setting enables the flow sensor 800 to detect the water outlet flow downstream of the water outlet of the water mixing module 500 on the water main pipe 300, that is, detect the outlet water flow discharged by the electric water heater, so as to ensure the water outlet of the electric water heater.

Please refer to the embodiment shown in Fig. 2 to Fig. 6, the electric water heater also includes an inner tank temperature sensor 900, the inner tank temperature sensor 900 is arranged on the inner tank body 210 for detecting the temperature of the inner tank The outlet water temperature of the water pipe 240 and/or the temperature of the water in the liner body 210 .

It can be understood that the inner tank temperature sensor 900 is electrically connected to the control device, and the inner tank temperature sensor 900 can detect the outlet water temperature of the inner tank outlet pipe 240 and/or the temperature of the water in the inner tank body 210, so as to assist the control device to control The inner tank heating module 220, the instant heating module 400 and the water mixing module 500 are controlled so that the temperature of the hot water output by the electric water heater can quickly reach the preset temperature and make the output hot water temperature more stable.

In one embodiment, the inner tank temperature sensor 900 is disposed on the inner tank body 210 and near the water inlet of the inner tank outlet pipe 240 . It can be understood that the water in the inner tank body 210 flows in from the water inlet of the inner tank outlet pipe 240, flows along the inner tank outlet pipe 240 until the water outlet of the inner tank outlet pipe 240 flows into the water mixing module 500, and passes through the water mixing module After 500, it is discharged outward along the main water pipe 300. By arranging the inner tank temperature sensor 900 close to the water inlet of the inner tank outlet pipe 240, it is equivalent to detecting the water temperature in the inner tank body 210 and the water temperature of the hot water inlet of the water mixing module 500, which is convenient for the control device to control the mixing. The water module 500 adjusts the ratio of cold water and hot water through the water mixing module 500, so that the water discharged from the water outlet of the water mixing module 500 can quickly reach the preset temperature, and it is conducive to the stability of the output hot water temperature of the electric water heater .

In one embodiment, the pipeline joint 330 is a three-way joint; and/or, the water mixing module 500 is a thermostatic water mixing valve. It can be understood that by providing a three-way joint, the water inlet of the inner tank water inlet pipe 230 communicates with the main water pipe 300, which is beneficial to improve the efficiency of assembly and disassembly of the electric water heater. In addition, the thermostatic water mixing valve is electrically connected to the control device, and the control device can control the valve opening of the thermostatic water mixing valve, wherein the valve opening of the thermostatic water mixing valve refers to the water on the main water pipe 300 entering the water mixing module 500 The water intake of the cold water inlet, and the water intake of the water in the inner tank body 210 into the hot water inlet of the water mixing module 500, the control device can adjust the valve opening of the thermostatic water mixing valve, and then can convect the flow through the water mixing module 500 The proportion of cold water and hot water is adjusted, so that the water discharged from the water outlet of the water mixing module 500 can quickly reach the preset temperature.

In one embodiment, the instant heating module 400 includes an instant heating chamber and an instant heating element, the instant heating chamber has an instant water inlet and an instant water outlet communicating with the main water pipe 300, the instant heating chamber The instant heating element is arranged in the instant heating chamber for heating the water in the instant heating chamber; the instant heating element includes a heating pipe; or, the instant heating element includes a heating element and A thyristor component, the heating element is electrically connected to the control device through the thyristor component.

It can be understood that the hot water inlet communicates with the water inlet end of the main water pipe 300, that is, the hot water outlet communicates with the water inlet of the inner tank water inlet pipe 230 through the water main pipe 300, so that the water inlet of the main water pipe 300 can After being heated by the instant hot module 400 , it flows into the main water pipe 300 along the instant hot water outlet. The number of heating tubes can be one or more, and multiple heating tubes can work independently, and of course, multiple heating tubes can also work in parallel. In addition, when the instant heating element includes a thyristor component, the stepless adjustment of the power of the instant heating module 400 can be realized. The purpose is that when the instant heating module 400 operates at the maximum Or it is equal to the temperature preset by the user. At this time, the power of the instant heating module 400 can be adjusted so that the water inlet of the electric water heater only flows along the main water pipe 300, that is to say, the water supply channel of the electric water heater only passes through the main water pipe 300 instead of the main water pipe 300. Through the inner tank heating module 220, the electric water heater can be turned on and used immediately, so that the user does not need to wait, and the electric water heater does not need to heat all the water in the inner tank body 210, thereby improving the energy utilization rate of the electric water heater.

Of course, the working power of the instant thermal module 400 can also be a fixed value, that is, the instant thermal module 400 has only two working modes of non-working and maximum load operation, thus reducing the hardware cost generated by the power conversion of the instant thermal module 400, The above two embodiments can be configured according to specific needs, and are not limited here.

Please refer to Fig. 2, in this embodiment, the inner container temperature sensor 900 is arranged near the water inlet of the inner container outlet pipe 240; Upstream: the flow sensor 800 is set on the main water pipe 300 and is located between the hot water outlet of the instant heating module 400 and the water inlet of the liner water inlet pipe 230; downstream of the outlet.

Please refer to Fig. 3, in this embodiment, the inner tank temperature sensor 900 is arranged near the water inlet of the inner tank outlet pipe 240; Between the water inlets of the inner tank water inlet pipe 230; the flow sensor 800 is arranged on the main water pipe 300 and between the instant hot water outlet of the instant heating module 400 and the water inlet of the inner tank water inlet pipe 230. At this time, the water inlet temperature sensor The locations of 600 and flow sensor 800 on the water main pipe 300 are in no order;

Please refer to Fig. 4, in this embodiment, the inner tank temperature sensor 900 is arranged near the water inlet of the inner tank outlet pipe 240; Between the water inlets of the inner tank water inlet pipe 230; the flow sensor 800 is arranged on the water main pipe 300 and is located downstream of the water outlet of the water mixing module 500; the water temperature sensor is arranged on the water main pipe 300 and is located at the water outlet of the water mixing module 500 At this time, the positions of the flow sensor 800 and the outlet water temperature sensor 700 on the water main pipe 300 are in no order.

Please refer to Fig. 5, in the present embodiment, the inner container temperature sensor 900 is arranged near the water inlet of the inner container outlet pipe 240; Upstream; the flow sensor 800 is set on the main water pipe 300 and is located upstream of the instant hot water inlet of the instant heating module 400. At this time, the positions of the inlet water temperature sensor 600 and the flow sensor 800 on the main water pipe 300 are in no order; the outlet water temperature The sensor 700 is disposed on the main water pipe 300 and located downstream of the water outlet of the water mixing module 500 .

Please refer to Fig. 6, in this embodiment, the inner tank temperature sensor 900 is arranged near the water inlet of the inner tank outlet pipe 240; Upstream; the flow sensor 800 is located on the water main pipe 300 and is located downstream of the water outlet of the water mixing module 500; the outlet water temperature sensor 700 is located on the water main pipe 300 and is located downstream of the water outlet of the water mixing module 500. At this time, the flow sensor The positions of 800 and the outlet water temperature sensor 700 on the main water pipe 300 are in no sequence.

Fig. 7 is a schematic diagram of the water flow direction in the electric water heater of the present utility model. In the embodiments of the above-mentioned Fig. The temperature sensor 600, the flow sensor 800 and the outlet water temperature sensor 700 are all electrically connected to the control device, and the control device controls the inner tank heating module 220, the instant heating module 400 and the water mixing module 500 through the feedback signals of the above sensors, so that the electric water heater The outlet water temperature reaches the user's preset temperature.

The above is only a preferred embodiment of the utility model, and therefore does not limit the patent scope of the utility model. Under the inventive concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (11)

1. An electric water heater, characterized in that, comprising: shell; An inner container assembly, including an inner container body, an inner container heating module arranged on the inner container body, an inner container water inlet pipe and an inner container outlet pipe, the inner container body is arranged in the outer shell; The main water pipe is installed on the shell and is located outside the inner tank body, and the water inlet of the inner tank water inlet pipe is connected with the main water pipe; The instant heating module is arranged in the shell, the instant heating module is arranged on the water main pipe and is located upstream of the water inlet of the inner tank water inlet pipe, and the instant heating module is used for convective flow through the water main pipe water for heating; The water mixing module is arranged on the water main pipe and is located downstream of the water inlet of the inner tank water inlet pipe. The cold water inlet of the water mixing module communicates with the water main pipe, and the hot water of the water mixing module enters The water outlet is communicated with the water outlet of the inner tank outlet pipe, the water outlet of the water mixing module is communicated with the water main pipe, and the water mixing module is used to adjust the ratio of cold water and hot water flowing through the water mixing module. regulation; and A control device, the inner tank heating module, the instant heating module and the water mixing module are respectively electrically connected to the control device. 2. The electric water heater according to claim 1, wherein the main water pipe comprises a main water inlet pipe, a main water outlet pipe and a pipeline connector, and the pipeline connector has a first interface, a second interface and a The third interface, the first interface communicates with the main water inlet pipe, the second interface communicates with the water inlet of the liner water inlet pipe, and the third interface communicates with the total water outlet pipe; The thermal module is arranged on the main water inlet pipe, and the water mixing module is arranged on the main water outlet pipe. 3. The electric water heater according to claim 1, characterized in that, the electric water heater further comprises an inlet water temperature sensor, and the inlet water temperature sensor is arranged on the main water pipe and located at the inlet of the water inlet pipe of the inner tank. upstream of the mouth. 4. The electric water heater according to claim 3, wherein the water inlet temperature sensor is arranged on the water main pipe and is located upstream of the instant water inlet of the instant heat module; and/or, The water inlet temperature sensor is arranged on the water main pipe, and is located between the instant water outlet of the instant heating module and the water inlet of the inner tank water inlet pipe. 5. The electric water heater according to claim 1, characterized in that, the electric water heater further comprises an outlet water temperature sensor, the outlet water temperature sensor is arranged on the main water pipe, and is located at the outlet of the water mixing module. downstream. 6. The electric water heater according to claim 1, characterized in that the electric water heater further comprises a flow sensor, the flow sensor is arranged on the main water pipe and is located upstream of the water inlet of the inner tank water inlet pipe . 7. The electric water heater according to claim 6, wherein the flow sensor is arranged on the water main pipe and is located upstream of the instant water inlet of the instant heat module; and/or, The flow sensor is arranged on the water main pipe, and is located between the instant water outlet of the instant heating module and the water inlet of the inner tank water inlet pipe. 8. The electric water heater according to claim 1, characterized in that the electric water heater further comprises a flow sensor, the flow sensor is arranged on the water main pipe and is located downstream of the water outlet of the water mixing module. 9. The electric water heater according to claim 1, characterized in that, the electric water heater further comprises an inner tank temperature sensor, and the inner tank temperature sensor is arranged on the inner tank body for detecting the temperature of the inner tank The outlet water temperature of the outlet pipe and/or the temperature of the water in the inner container body. 10. The electric water heater according to claim 9, characterized in that, the inner tank temperature sensor is arranged on the inner tank body and near the water inlet of the inner tank outlet pipe. 11. The electric water heater according to claim 2, wherein the pipe joint is a three-way joint; and/or, The water mixing module is a thermostatic water mixing valve.