CN218544820U - Heating body and water heater - Google Patents

Abstract

The application belongs to the technical field of equipment is prepared to hot water, concretely relates to heating member and water heater. The application aims to solve the problems that the condensate water generated by a cold water inlet pipe of the existing instant electric water heater is easy to cause short circuit, corrosion and rust. The heating member of this application includes heating main part, inlet tube, bypass pipe, valve member and outlet pipe, is formed with the heating chamber in the heating main part, the relative both ends in heating chamber respectively with inlet tube and outlet pipe intercommunication. At least part of the water inlet pipe is attached to the outer surface of the heating main body, or a preset gap is formed between at least part of the water inlet pipe and the outer surface of the heating main body. The heat of the heating main body can be transferred to the water inlet pipe so as to improve the temperature of the water in the water inlet pipe and avoid generating condensed water; the valve component is configured to control the water inlet pipe to be closed and the bypass pipe to be opened when the heating body is closed to control heating, so that cold water is directly discharged from the bypass pipe to the water outlet pipe, and the cold water is prevented from entering the water inlet pipe to generate condensed water; thereby improving the safety of the water heater.

Description

Heating body and water heater

Technical Field

The application belongs to the technical field of equipment is prepared to hot water, concretely relates to heating member and water heater.

Background

The instant electric water heater can heat running water quickly by electronic heating elements and can control water temperature, flow rate, power and the like by circuits to enable the water temperature to reach the temperature suitable for bathing of human bodies.

In the related art, the instant electric water heater includes a heating body and a control panel, the heating body is provided with a cold water inlet pipe and a hot water outlet pipe, and the control panel is used for controlling the working state of the instant electric water heater. However, because the temperature of the cold water in the cold water inlet pipe is relatively low, under the action of the internal temperature of the water heater, condensed water is generated and flows into electrical elements such as a wiring terminal, a control panel and the like, so that the problems of short circuit, corrosion and rust are easily caused, and the service life of the water heater is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, namely to solve the problems that the condensed water generated by a cold water inlet pipe of the existing instant electric water heater is easy to cause short circuit, corrode and rust, the application provides a heating body and a water heater.

The heating body includes: the water pipe assembly comprises a water inlet pipe and a bypass pipe, and the bypass pipe is respectively communicated with the water inlet pipe and the water outlet pipe; a heating cavity is formed in the heating main body, and two opposite ends of the heating cavity are respectively communicated with the water inlet pipe and the water outlet pipe; at least part of the water inlet pipe is attached to the outer surface of the heating main body, or a preset gap is formed between at least part of the water inlet pipe and the outer surface of the heating body; the valve assembly is configured to control the water inlet pipe to be conducted and the bypass pipe to be closed when the heating body works, and to control the water inlet pipe to be closed and the bypass pipe to be opened when the heating body is closed to control heating.

In an optional technical scheme of the heating body, the water inlet pipe comprises a first pipe section, a second pipe section, a third pipe section and an attached pipe section, two ends of the attached pipe section are respectively communicated with the first pipe section and the second pipe section, projections of the first pipe section and the second pipe section on the heating main body are positioned outside the heating main body, the first pipe section is communicated with the heating cavity, and the second pipe section, the third pipe section and the bypass pipe section are communicated; the attached pipe section is attached to the outer surface of the heating main body, or a preset gap is formed between the attached pipe section and the outer surface of the heating main body.

In an optional technical scheme of the heating body, the attaching pipe section is provided with an attaching plane, and the attaching plane is attached to the outer surface of the heating main body.

In an optional technical scheme of the heating body, the attaching plane is attached to the outer surface of the heating main body through heat-conducting glue.

In an optional technical solution of the above heating body, the valve assembly includes a first control valve, the first control valve has a first port, a second port, and a third port, and the first end of the bypass pipe is communicated with the water outlet pipe; the first port is in communication with the second tube segment, the second port is in communication with the second end of the bypass tube, and the third port is in communication with the third tube segment; the first control valve is configured to control the first port to be communicated with the third port when the heating body works, so that the water inlet pipe is communicated and the bypass pipe is closed; the first control valve is further configured to control the third port to be communicated with the second port when the heating body is closed to control heating, so that the water inlet pipe is closed and the bypass pipe is communicated.

In an optional technical solution of the above heating body, the valve assembly includes a second control valve and a third control valve, the second control valve is installed on the second pipe section, and the third control valve is installed on the bypass pipe; the second control valve is configured to open when the heating body is operated to conduct the second pipe section; when the heating body is turned off for heating, the heating body is turned off so that the second pipe section is turned off; the third control valve is configured to close when the heating body is in operation such that the bypass line is closed; and the bypass pipe is opened when the heating body is closed to heat so as to conduct the bypass pipe.

In an optional technical scheme of the heating body, the water outlet pipe comprises a fourth pipe section and a fifth pipe section, the fourth pipe section is communicated with the heating cavity, and the fifth pipe section is used for being communicated with water using equipment; the heating body further comprises a three-way joint, the three-way joint is provided with a first interface, a second interface and a third interface, the first interface is communicated with the first end of the bypass pipe, the second interface is communicated with the fourth pipe section, and the third interface is communicated with the fifth pipe section.

In an optional technical solution of the above heating body, a check valve is disposed on the fourth pipe section, and the check valve is configured to make water in the fourth pipe section flow to the fifth pipe section in a one-way manner.

In an optional technical scheme of the heating body, the heating body is provided with a first end and a second end which are opposite to each other, the water outlet pipe is arranged on the end face of the first end of the heating body, and the water inlet pipe is arranged on the side face of the second end of the heating body; and a wiring terminal is arranged on the end face of the second end of the heating body.

In an optional technical scheme of the heating body, the heating main body comprises a heating pipe, a heating element and a shell, and the heating pipe and the heating element are both arranged inside the shell; one end of the heating pipe is communicated with the water inlet pipe, and the other end of the heating pipe is communicated with the water outlet pipe; the heating element is arranged on the outer side of the heating pipe; at least part of the water inlet pipe is attached to the outer surface of the shell, or a preset gap is formed between at least part of the water inlet pipe and the outer surface of the shell.

The water heater includes: the heating body and the control panel are both arranged inside the outer shell, and a water inlet pipe and a water outlet pipe of the heating body penetrate out of the outer side of the outer shell; the heating body is arranged in the outer shell, and a water inlet pipe and a water outlet pipe of the heating body penetrate out of the outer side of the outer shell; the valve assembly of the heating body is arranged inside the outer shell, or the valve assembly of the heating body is arranged outside the outer shell.

As can be understood by those skilled in the art, the heating body of the water heater of the present application includes a heating body, a water pipe assembly, a valve assembly and a water outlet pipe, the water pipe assembly includes a water inlet pipe and a bypass pipe, the bypass pipe is respectively communicated with the water inlet pipe and the water outlet pipe; the heating body is internally provided with a heating cavity, two opposite ends of the heating cavity are respectively communicated with the water inlet pipe and the water outlet pipe, so that cold water entering from the water inlet pipe is heated in the process of flowing from one end of the heating cavity to the other end, and then hot water flows out from the water outlet pipe. The valve component is configured to control the water inlet pipe to be conducted and the bypass pipe to be closed when the heating main body works, so that water in the water inlet pipe is heated by the heating main body and then is discharged from the water outlet pipe. Therefore, the heat of the heating main body can be transferred to the water inlet pipe, so that the temperature of water in the water inlet pipe is increased, the problem of generating condensed water can be avoided, and elements in the water heater are prevented from being corroded by the condensed water; and can predetermine the water in the inlet tube in advance, do benefit to and improve heating efficiency, can also retrieve the heat that heats the main part radiation. The valve component is also configured to control the water inlet pipe to be closed and the bypass pipe to be opened when the heating body is closed to heat, so that cold water directly flows to the water outlet pipe through the bypass pipe and does not enter the heating body, and the cold water is prevented from entering the water inlet pipe to generate condensed water. This application embodiment is through the attached surface in heating main part of the part pipeline section with the inlet tube, perhaps, has the distance of predetermineeing with the surface of the part pipeline section of inlet tube and heating main part for the heat of heating main part can radiate to in the inlet tube, thereby the water in the heating inlet tube, simple structure, reliable, with low costs, can improve the security and the life of water heater.

Drawings

Alternative embodiments of the heating body and water heater of the present application are described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic structural diagram of a heating body provided in an embodiment of the present application;

fig. 2 is a front view of a heating body provided in the first embodiment of the present application;

fig. 3 is a left side view of a heating body provided in accordance with an embodiment of the present application;

fig. 4 is a front view of a heating body provided in example two of the present application;

fig. 5 is a schematic structural diagram of a water heater provided in an embodiment of the present application.

In the drawings: 100: a heating body; 110: heating the body; 111: a wiring terminal; 112: a first connecting wire; 120: a water inlet pipe; 121: a first tube section; 122: a second tube section; 123: attaching the pipe sections; 124: a third tube section; 130: a water outlet pipe; 131: a fourth tube section; 132: a fifth pipe section; 140: a bypass pipe; 150: a first control valve; 151: a first port; 152: a second port; 153: a third port; 160: a three-way joint; 170: a second control valve; 180: a third control valve; 200: an outer housing; 300: a control panel; 310: an electrical connection socket.

Detailed Description

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

Furthermore, it should be noted that in the description of the embodiments of the present application, the terms of direction or positional relationship indicated by the terms "inside" and "outside" and the like 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 be operated, and therefore, should not be construed as limiting the embodiments of the present application.

Furthermore, it should be noted that, in the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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 meanings of the above terms in the examples of the present application can be understood by those skilled in the art as appropriate.

The instant electric water heater can heat running water quickly by electronic heating elements and can control water temperature, flow rate, power and the like by circuits to enable the water temperature to reach the temperature suitable for bathing of human bodies. In the related art, the instant electric water heater includes a heating body and a control panel, the heating body is provided with a cold water inlet pipe and a hot water outlet pipe, and the control panel is used for controlling the working state of the instant electric water heater.

Researchers find that condensed water is generated on a cold water inlet pipe, and the condensed water flows into electrical elements such as a wiring terminal and a control panel, so that the problems of short circuit, corrosion and rust are easily caused, and the service life of the water heater is influenced. Researchers research this, and in the use process of the instant electric water heater, the temperature of water in the cold water inlet pipe is relatively low, and the space where the instant electric water heater is located, for example, a bathroom, a kitchen, etc., is generally relatively high in temperature and humidity, so that the internal temperature and humidity of the instant electric water heater are relatively high. When the gaseous water contained in the air reaches saturation and the temperature reaches the dew point temperature, the gaseous water is condensed into liquid water drops which are attached to the cold water inlet pipe with lower temperature, and condensed water is formed.

Researchers consider a scheme for avoiding the generation of condensed water from the formation condition of the condensed water, wherein the internal temperature and the humidity of the instant electric water heater are influenced by the temperature and the humidity in the space where the instant electric water heater is located, and are difficult to change. Researchers also consider covering the cold water inlet pipe with heat insulation cotton or similar structural shells; however, the volume of the whole machine is increased, the cost is increased, and the problem that the control board or the wiring terminal is corroded by water still exists along with the normal use time. The researchers further study that the temperature of the cold water inlet pipe can be changed to avoid generating condensed water.

In view of this, the embodiment of the present application provides a water heater, the water inlet pipe of which is attached to the heating body, and the heat of the heating body is utilized to preheat the water in the water inlet pipe, so that not only the generation of condensed water can be avoided, but also the heat recovery effect can be achieved, and the volume of the whole machine cannot be excessively increased.

The further research of researchers discovers that the instant electric water heater can be applied to a hot water scene, and a cold water use scene exists, namely, the heating function of the water heater is not started, and the cold water flows out after flowing through the inside of the heating body. In the process, the problem of condensed water generated by a cold water inlet pipe still exists.

Furthermore, the water heater provided by the embodiment of the application is provided with the bypass pipe between the water inlet pipe and the water outlet pipe, the bypass pipe and the water inlet pipe are connected with the first control valve, and the cold water flows to the water inlet pipe or the bypass pipe through the first control valve, so that when the water heater uses the cold water, the cold water directly flows to the water outlet pipe through the bypass pipe and does not flow to the water inlet pipe, and the condensate water generated on the water inlet pipe can be avoided; the water outlet pipe is close to the shell of the water heater, the probability of generating condensed water is low, and even if a small amount of condensed water is generated on the water outlet pipe, the water outlet pipe is far away from components of the water heater, and the components in the water heater cannot be influenced.

Or, a second control valve and a third control valve are respectively arranged on the water inlet pipe and the bypass pipe, the opening and closing of the water inlet pipe are controlled by controlling the opening and closing of the second control valve, and the opening and closing of the water outlet pipe are controlled by controlling the opening and closing of the third control valve, so that when the heating main body is closed, the water inlet pipe is closed and the bypass pipe is communicated, therefore, cold water enters the water outlet pipe through the bypass pipe to be discharged, condensed water cannot be generated on the water inlet pipe due to the fact that the cold water is introduced, and the generation of the condensed water is further avoided.

The following describes optional technical schemes of the heating body and the water heater in the embodiment of the application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a heating body provided in an embodiment of the present application; fig. 2 is a front view of a heating body provided in accordance with an embodiment of the present application; fig. 3 is a left side view of a heating body provided in the first embodiment of the present application.

With reference to fig. 1 to 3, the present application provides a heating body 100, which includes: a heating body 110, a water pipe assembly, a valve assembly and a water outlet pipe 130, wherein the heating body 110 plays a role of heating for heating cold water; the water pipe assembly is used for communicating with a household cold water pipeline and providing cold water for the heating body 110; the outlet pipe 130 is used to communicate with a water using device, such as a faucet, a shower, etc., to discharge hot water.

The water pipe assembly includes an inlet pipe 120 and a bypass pipe 140, and the bypass pipe 140 is communicated with the inlet pipe 120 and the outlet pipe 130, respectively.

A heating chamber is formed in the heating body 110, and opposite ends of the heating chamber are respectively communicated with the water inlet pipe 120 and the water outlet pipe 130, so that cold water introduced from the water inlet pipe 120 is heated while flowing from one end of the heating chamber to the other end thereof, and then hot water flows out from the water outlet pipe 130.

In some possible implementations, the heating body 110 includes a heating tube, a heat generating member, and a housing, and both the heating tube and the heat generating member are installed inside the housing; one end of the heating pipe is communicated with the water inlet pipe, and the other end of the heating pipe is communicated with the water outlet pipe; a heating cavity is formed in the heating pipe; the heating element is arranged outside the heating pipe, and heat generated by the heating element is transferred into the heating pipe, so that water in the heating pipe is heated. Wherein the housing may be a cast aluminum housing or the like.

Of course, this is not a limitation on the structure of the heating body 110, for example, in some implementations, the heating body includes a heat generating pipe, a water flow channel, and a metal filler filled between the heat generating pipe and the water flow channel, and the metal filler may be an aluminum-titanium alloy material with good heat conductivity. At this time, the water in the water flow channel is isolated from the heating element in the heating tube, so that water and electricity are separated, and the safety of the heating body 110 is improved.

The heating element 110 of the embodiment of the present application has a substantially rectangular parallelepiped shape, but the shape of the heating element 110 is not limited thereto, and the heating element 110 may have a cylindrical shape, for example.

At least a portion of the water inlet pipe 120 of the embodiment of the present application is attached to the outer surface of the heating main body 110, or at least a portion of the water inlet pipe 120 has a predetermined gap with the outer surface of the heating main body 110. The preset gap may be smaller than 20mm, for example, the preset gap is 10mm, and the specific value of the preset gap is not limited in the embodiment of the present application. Specifically, at least a portion of the water inlet pipe 120 is attached to the outer surface of the housing of the heating body 110, or at least a portion of the water inlet pipe 120 has a predetermined gap with the outer surface of the housing of the heating body 110.

So, the heat of heating main part 110 can transmit to inlet tube 120 on to improve the temperature of the interior water of inlet tube 120, not only can avoid producing the problem of comdenstion water, can predetermine the water in the inlet tube 120 in advance moreover, do benefit to and improve heating efficiency, can also retrieve the heat of heating main part 110 radiation.

The embodiment of the present application attaches the partial pipe section of the water inlet pipe 120 on the surface of the heating body 110, or the partial pipe section of the water inlet pipe 120 and the surface of the heating body 110 have a preset distance, so that the heat of the heating body 110 can radiate into the water inlet pipe 120, thereby heating the water in the water inlet pipe 120, and the water heater has the advantages of simple and reliable structure, low cost and capability of improving the safety of the water heater.

In some possible implementation manners, with reference to fig. 1 and 2, the water inlet pipe 120 includes a first pipe segment 121, a second pipe segment 122, a third pipe segment 124, and an attached pipe segment 123, two ends of the attached pipe segment 123 are respectively communicated with the first pipe segment 121 and the second pipe segment 122, the attached pipe segment 123, the first pipe segment 121 and the second pipe segment 122 are independent pipes, and the attached pipe segment 123 may be communicated with the first pipe segment 121 and the second pipe segment 122 through threaded connection, flange connection, and the like, so that the pipe segments are convenient to process; alternatively, the attached pipe section 123, the first pipe section 121, and the second pipe section 122 are all integrally formed pipes, so that the problem of water leakage at the joint can be avoided.

Wherein, the projection of the first pipe segment 121 and the second pipe segment 122 on the heating main body 110 is positioned outside the heating main body 110, the first pipe segment 121 is communicated with the heating cavity, and the second pipe segment 122, the third pipe segment 124 and the bypass pipe 140 are communicated; the attaching pipe section 123 is attached to the outer surface of the heating body 110, or the attaching pipe section 123 has a predetermined gap from the outer surface of the heating body 110. Like this, attached pipe section 123 is inside heating body 110 is located to the projection of heating body 110, and the heat of heating body 110 can radiate to attached pipe section 123 to the water in the attached pipe section 123 of heating improves the temperature of the water in attached pipe section 123 and the first pipe section 121, avoids producing the components and parts of comdenstion water erosion water heater.

In order to increase the area of the opposite surfaces of the attaching pipe section 123 and the heating body 110, in some embodiments, the attaching pipe section 123 is provided with an attaching plane, and the attaching plane is attached to the outer surface of the heating body 110, so that the attaching operation of the attaching pipe section 123 and the heating body 110 is simple, and a large contact area is provided between the attaching pipe section 123 and the heating body 110, which is beneficial to improving the heat transfer.

Of course, when the attachment pipe section 123 has a predetermined gap with the outer surface of the heating body 110, the attachment plane is beneficial to increase the relative area of the attachment pipe section 123 and the heating body 110, thereby being beneficial to increase the heat transfer.

Referring to fig. 1 and 2, the attached pipe section 123 extends along the length direction of the outer surface of the heating body 110, so that the attached pipe section 123 opposite to the heating body 110 has a longer length, which is beneficial to increase the heat absorbed by water in the attached pipe section 123. Of course, this is not a limitation on the manner in which the attachment tube segment 123 extends, and for example, the attachment tube segment 123 may also be helically wound around the outer surface of the heating body 110.

In some possible implementations, the attachment plane is attached to the outer surface of the heating body 110 through a heat-conducting glue, so that not only the attachment pipe segment 123 can be fixed on the surface of the heating body 110, but also the heat-conducting glue can improve heat transmission.

Of course, this is not a limitation on the manner in which the attached tube segment 123 is connected to the heating body 110, and for example, the attached tube segment 123 may be formed as a single integral piece with the housing of the heating body 110 to facilitate heat transfer.

The valve assembly of the embodiment of the application is configured to control the conduction of the water inlet pipe 120 and the closing of the bypass pipe 140 when the heating body 110 works, so that the water in the water inlet pipe 120 is heated by the heating body 110 and then discharged from the water outlet pipe 130, and in the process, as the heat of the body 110 can be transferred to the water inlet pipe 120, the temperature of the water in the water inlet pipe 120 is increased, the problem of generating condensed water can be avoided, and further, the elements in the water heater are prevented from being corroded by the condensed water; and the water in the water inlet pipe 120 can be preset in advance, which is beneficial to improving the heating efficiency, and the heat radiated by the heating main body 110 can be recovered.

The valve assembly of the embodiment of the present application is further configured to control the water inlet pipe 120 to be closed and the bypass pipe 140 to be opened when the heating body 110 is closed to heat, so that cold water directly flows to the water outlet pipe through the bypass pipe and does not enter the heating body 110, and further, the cold water can be prevented from entering the water inlet pipe 120 to generate condensed water.

With continued reference to fig. 1-3, in some of the possible embodiments, the valve assembly includes a first control valve 150, the first control valve 150 having a first port 151, a second port 152, and a third port 153, the first end of the bypass pipe 140 communicating with the outlet pipe 130.

The first port 151 is communicated with the second pipe section 122, and the first port 151 and the second pipe section 122 can be in threaded connection, flange connection and the like; the second port 152 communicates with the second end of the bypass pipe 140, and the second port 152 is connected with the second end of the bypass pipe 140 by a screw, a flange, or the like; the third port 153 communicates with the third pipe segment 124, and the third port 153 is connected to the third pipe segment 124 by a screw, a flange, or the like. The connection mode of the first port 151 and the second pipe section 122, the connection mode of the second port 152 and the second end of the bypass pipe 140, and the connection mode of the third port 153 and the third pipe section 124 are the same, which is beneficial to improving the convenience and efficiency of assembly.

The first control valve 150 may be an electromagnetic switching valve or the like, and is not limited thereto. The first control valve 150 may be electrically connected to a control board of the water heater, switching the ports that communicate under the control of the control board.

First control valve 150 is configured to control communication between first port 151 and third port 153 during operation of heating body 110 such that cold water in third pipe segment 124 enters second pipe segment 122 via third port 153, first port 151, and then enters the heating cavity of heating body 110 via attached pipe segment 123 and first pipe segment 121. At this time, the second port 152 is closed.

The first control valve 150 is further configured to control the third port 153 to be communicated with the second port 152 when the heating body 110 is turned off to heat, so that the water inlet pipe 120 is turned off and the bypass pipe 140 is communicated, and the cold water in the third pipe segment 124 enters the water outlet pipe 130 through the third port 153 and the second port 152 and is directly discharged without entering the attached pipe segment 123 and the heating cavity, so that the generation of condensed water in the attached pipe segment 123 can be avoided. At this time, the first port 151 is closed.

With reference to fig. 4, fig. 4 is a front view of a heating body provided in the second embodiment of the present application. In other possible implementations, the valve assembly includes a second control valve 170 and a third control valve 180, the second control valve 170 being mounted on the second tubing section 122, and the third control valve 180 being mounted on the bypass tubing 140. The second control valve 170 and the third control valve 180 are both solenoid-operated valves.

The second control valve 170 is configured to open to conduct the second pipe section 122 when the heating body 110 is operated, and the third control valve 180 is configured to close the bypass pipe 140 when the heating body 110 is operated; thus, the cold water in the third pipe segment 124 enters the heating body 110 through the second pipe segment 122, the attached pipe segment 123 and the first pipe segment 121 for heating, and the heated hot water is discharged through the water outlet pipe 130. The second control valve 170 is also configured to close when the heating body 110 is turned off to cause the second pipe segment 122 to close; the third control valve 180 is also configured to open when the heating body 110 is closed to conduct the bypass pipe 140; thus, the cold water in the third pipe section 124 enters the water outlet pipe 130 via the bypass pipe 140 and is directly discharged without entering the heating body 110.

Thus, when the heating body 110 is turned off to heat, the cold water is directly discharged from the bypass pipe 140 and the water outlet pipe 130, and does not enter the attached pipe section 123 and the heating body 110, thereby preventing the generation of condensed water.

With continued reference to fig. 1-3, the outlet tube 130 of the present embodiment includes a fourth tube segment 131 and a fifth tube segment 132, the fourth tube segment 131 is in communication with the heating chamber, and the fifth tube segment 132 is used for communicating with water using equipment, such as a faucet, a shower head, etc.

The heating body 100 of the embodiment of the present application further includes a three-way joint 160, where the three-way joint 160 has a first interface, a second interface, and a third interface, the first interface is communicated with the first end of the bypass pipe 140, and the first interface is in threaded connection, flange connection, and the like with the first end of the bypass pipe 140; the second interface is communicated with the fourth pipe section 131, and the second interface is in threaded connection, flange connection and the like with the fourth pipe section 131; the third port is communicated with the fifth pipe section 132, and the third port is in threaded connection, flange connection and the like with the fifth pipe section 132. Optionally, the connection mode of the first interface and the bypass pipe 140, the connection mode of the second interface and the fourth pipe section 131, and the connection mode of the third interface and the fifth pipe section 132 are the same, which is beneficial to improving the convenience of assembly.

In some possible embodiments, the fourth pipe segment 131 is provided with a check valve, and the check valve is configured to make the water in the fourth pipe segment 131 flow to the fifth pipe segment 132 in a single direction, so that the water in the fifth pipe segment 132 is prevented from flowing back to the fourth pipe segment 131.

With continued reference to fig. 1 to 3, the heating body 110 of the embodiment of the present application has opposite first and second ends, for example, in the orientation shown in fig. 2, the top end of the heating body 110 is the first end, and the bottom end of the heating body 110 is the second end.

The position where the outlet pipe 130 communicates with the heating chamber is located at the first end of the heating main body 110, the position where the inlet pipe 120 communicates with the heating chamber is located at the side of the second end of the heating main body 110, for example, the position where the inlet pipe 120 communicates with the heating chamber is located at the left side of the second end of the heating main body 110, and for example, the position where the inlet pipe 120 communicates with the heating chamber is located at the right side of the second end of the heating main body 110. So set up, make inlet tube 120 and outlet pipe 130 have more distant interval, facilitate forming the heating chamber of longer distance in heating body 110 and heat.

The terminal 111 is disposed at the end surface of the second end of the heating body 110 for supplying power to the heat generating member in the heating body 110. The binding post 111 of this application embodiment is close to inlet tube 120, and for outlet pipe 130 department, the temperature of inlet tube 120 department is lower to can guarantee that the temperature of binding post 111 department is lower, avoid heating main part 110's temperature to influence binding post 111.

Fig. 4 is a schematic structural diagram of a water heater provided in an embodiment of the present application.

With reference to fig. 4, an embodiment of the present application further provides a water heater, which includes: the heating body 100 is installed inside the outer case 200, and the water inlet pipe 120 and the water outlet pipe 130 of the heating body 100 both penetrate out of the outer side of the outer case 200.

The structure, function and effect of the heating body 100 are the same as those of the above embodiments, and specific reference may be made to the above embodiments, which are not described herein again.

The water heater of the embodiment of the present application further includes a control board 300, and the control board 300 is electrically connected to the heating body 110 of the heating body 100, and is used for controlling the working state of the heating body 110. The control board 300 is provided with an electrical connection socket 310, and the electrical connection socket 310 is electrically connected to the connection terminal 111 through the first connection wire 112, so as to electrically connect the control board 300 to the heating element of the heating body 110.

Of course, the control board 300 is further provided with a controller electrically connected to the first control valve 150 of the heating body 100 to adjust the conduction state of the port of the first control valve 150 according to the working state of the heating body 110.

The valve assembly of the heating body 100 can be installed inside the outer casing 200, so that the appearance of the water heater is regular, and the valve assembly is protected.

Alternatively, the valve assembly of heating body 100 may also be mounted outside outer shell 200, so as to facilitate the installation and maintenance of the valve assembly.

To sum up, the heating body 100 of the water heater of the embodiment of the present application includes a heating body 110, a water pipe assembly, a valve assembly, and a water outlet pipe 130, where the water pipe assembly includes a water inlet pipe 120 and a bypass pipe 140, and the bypass pipe 140 is respectively communicated with the water inlet pipe 120 and the water outlet pipe 130; a heating chamber is formed in the heating body 110, and opposite ends of the heating chamber are respectively communicated with the water inlet pipe 120 and the water outlet pipe 130, so that cold water introduced from the water inlet pipe 120 is heated while flowing from one end of the heating chamber to the other end, and then hot water flows out from the water outlet pipe 130. At least a portion of the water inlet pipe 120 is attached to the outer surface of the heating body 110, or at least a portion of the water inlet pipe 120 has a predetermined gap with the outer surface of the heating body 110. The valve assembly is configured to control the conduction of the water inlet pipe 120 and the closing of the bypass pipe 140 when the heating body 110 works, so that the water in the water inlet pipe 120 is heated by the heating body 110 and then discharged from the water outlet pipe 130, and in the process, the heat of the heating body 110 can be transferred to the water inlet pipe 120, so that the temperature of the water in the water inlet pipe 120 is increased, the problem of generating condensed water can be avoided, and further, the elements in the water heater are prevented from being corroded by the condensed water; and the water in the water inlet pipe 120 can be preset in advance, which is beneficial to improving the heating efficiency, and the heat radiated by the heating main body 110 can be recovered. The valve assembly is also configured to control the water inlet pipe 120 to be closed and the bypass pipe 140 to be opened when the heating body 110 is turned off for heating, so that the cold water directly flows to the water outlet pipe 130 through the bypass pipe 140 and does not enter the heating body 110, thereby preventing the cold water from entering the water inlet pipe 120 to generate condensed water. The embodiment of the application attaches the partial pipe section of the water inlet pipe 120 on the surface of the heating body 110, or the partial pipe section of the water inlet pipe 120 and the surface of the heating body 110 have a preset distance, so that the heat of the heating body 110 can radiate to the water inlet pipe 120, and the water in the water inlet pipe 120 is heated, the structure is simple and reliable, the cost is low, and the safety and the service life of the water heater can be improved.

So far, the technical solutions of the present application 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 application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims (10)

1. A heating body, characterized by comprising: the water pipe assembly comprises a water inlet pipe and a bypass pipe, and the bypass pipe is respectively communicated with the water inlet pipe and the water outlet pipe;

a heating cavity is formed in the heating main body, and two opposite ends of the heating cavity are respectively communicated with the water inlet pipe and the water outlet pipe; at least part of the water inlet pipe is attached to the outer surface of the heating main body, or a preset gap is formed between at least part of the water inlet pipe and the outer surface of the heating body;

the valve assembly is configured to control the inlet pipe to be conducted and the bypass pipe to be closed when the heating body operates, and to control the inlet pipe to be closed and the bypass pipe to be opened when the heating body is closed to control heating.

2. The heating body as claimed in claim 1, wherein the water inlet pipe comprises a first pipe section, a second pipe section, a third pipe section and an attached pipe section, both ends of the attached pipe section are respectively communicated with the first pipe section and the second pipe section, the projection of the first pipe section and the second pipe section on the heating main body is positioned outside the heating main body, the first pipe section is communicated with the heating cavity, and the second pipe section, the third pipe section and the bypass pipe are communicated; the attached pipe section is attached to the outer surface of the heating main body, or a preset gap is formed between the attached pipe section and the outer surface of the heating main body.

3. The heating body as claimed in claim 2, wherein the attachment tube section is provided with an attachment plane which is attached to the outer surface of the heating main body.

4. The heating body of claim 3, wherein the attachment plane is attached to the outer surface of the heating body by a thermally conductive adhesive.

5. The heating body according to claim 2, wherein the valve assembly comprises a first control valve having a first port, a second port and a third port, the first end of the bypass duct being in communication with the outlet duct;

the first port is in communication with the second pipe section, the second port is in communication with a second end of the bypass pipe, and the third port is in communication with the third pipe section;

the first control valve is configured to control the first port to be communicated with the third port when the heating body works so as to enable the water inlet pipe to be communicated and the bypass pipe to be closed; the first control valve is further configured to control the third port to be communicated with the second port when the heating body is closed to control heating, so that the water inlet pipe is closed and the bypass pipe is communicated.

6. The heating body according to claim 2, wherein the valve assembly comprises a second control valve mounted on the second section and a third control valve mounted on the bypass pipe;

the second control valve is configured to open when the heating body is operated to conduct the second pipe section; when the heating body is turned off for heating, the heating body is turned off so that the second pipe section is turned off;

the third control valve is configured to close when the heating body is in operation, such that the bypass pipe is closed; and the bypass pipe is opened when the heating body is closed to heat so as to conduct the bypass pipe.

7. The heating body according to any one of claims 1 to 6, wherein the water outlet pipe comprises a fourth pipe section and a fifth pipe section, the fourth pipe section is communicated with the heating cavity, and the fifth pipe section is used for being communicated with a water using device; a one-way valve is arranged on the fourth pipe section and is configured to enable water in the fourth pipe section to flow to the fifth pipe section in a one-way mode;

the heating body further comprises a three-way joint, the three-way joint is provided with a first interface, a second interface and a third interface, the first interface is communicated with the first end of the bypass pipe, the second interface is communicated with the fourth pipe section, and the third interface is communicated with the fifth pipe section.

8. The heating body according to any one of claims 1 to 6, wherein the heating body has opposite first and second ends, the communication position of the water outlet pipe with the heating cavity is located at the first end face of the heating body, and the communication position of the water inlet pipe with the heating cavity is located at the side face of the second end of the heating body; and a wiring terminal is arranged on the end face of the second end of the heating body.

9. The heating body according to any one of claims 1 to 6, wherein the heating main body comprises a heating tube, a heat generating member, and a case, both of which are mounted inside the case; one end of the heating pipe is communicated with the water inlet pipe, the other end of the heating pipe is communicated with the water outlet pipe, and a heating cavity is formed in the heating pipe; the heating element is arranged on the outer side of the heating pipe;

at least part of the water inlet pipe is attached to the outer surface of the shell, or a preset gap is formed between at least part of the water inlet pipe and the outer surface of the shell.

10. A water heater, comprising: a heating body as claimed in any one of claims 1 to 9, wherein the heating body is mounted inside the outer shell, and a water inlet pipe and a water outlet pipe of the heating body both penetrate out of the outer side of the outer shell; the valve assembly of the heating body is installed inside the outer shell, or the valve assembly of the heating body is installed outside the outer shell.

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